/* ==========================================================================
   ChainForensics Academic Presentation System
   Design Philosophy: Simple to look at, simple to explain, technically strong.
   Typography: Georgia (Headings), Times New Roman (Body), Courier New (Code)
   Colors: Navy Primary (#0C1E36), Restrained Orange (#D9531E), Warm Canvas (#FAF9F6)
   ========================================================================== */

:root {
  /* Typography */
  --font-heading: 'Georgia', 'Cambria', serif;
  --font-body: 'Times New Roman', Times, serif;
  --font-mono: 'Courier New', Courier, monospace;

  /* Restrained Academic Color Palette */
  --navy-primary: #0C1E36;
  --navy-dark: #06101E;
  --navy-light: #1E3A5F;
  --navy-slate: #2A4365;

  --orange-accent: #D9531E;
  --orange-soft: #FFF7ED;
  --orange-border: #FED7AA;

  --canvas-bg: #FAF9F6;
  --slide-bg: #FFFFFF;
  --surface-muted: #F8FAFC;
  --surface-card: #FFFFFF;

  --border-light: #E2E8F0;
  --border-medium: #CBD5E1;
  --border-dark: #94A3B8;

  --text-main: #0F172A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-faint: #94A3B8;

  /* Status Colors */
  --status-intact: #15803D;
  --status-anomaly: #B45309;
  --status-tampered: #B91C1C;

  /* Global Slide Sizing: 16:9 Standard */
  --slide-width: 1920px;
  --slide-height: 1080px;
}

/* Reset & Base Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #0A0F1A;
  font-family: var(--font-body);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Viewport Container & 16:9 Aspect Ratio Scaling */
#presentation-viewport {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#stage {
  position: absolute;
  width: var(--slide-width);
  height: var(--slide-height);
  transform-origin: center center;
  background: var(--slide-bg);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.4);
  overflow: hidden;
}

/* Slide Deck Engine */
.deck-container {
  width: 100%;
  height: 100%;
  position: relative;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  background: var(--slide-bg);
  display: flex;
  flex-direction: column;
}

.slide.active {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

/* ==========================================================================
   SLIDE 01: TITLE SLIDE
   Clean, dignified, academic composition.
   Hierarchy:
     1. Institutional Context (Woxsen University • School of Technology)
     2. Main Title (CHAINFORENSICS) + Subtitle + Tri-Discipline Formula
     3. Simple Linear Project Pipeline (IoT → Evidence → SHA-256 → Blockchain → Verification)
     4. Academic & Project Metadata
   ========================================================================== */

.slide-title-container {
  width: 100%;
  height: 100%;
  padding: 85px 140px 75px 140px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  text-align: center;
}

/* Top: Project Hero Block */
.hero-title-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 1400px;
}

.hero-main-title {
  font-family: var(--font-heading);
  font-size: 66px;
  font-weight: 700;
  letter-spacing: 2.5px;
  color: var(--navy-primary);
  line-height: 1.1;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-family: var(--font-body);
  font-size: 28px;
  font-weight: 400;
  color: var(--text-body);
  line-height: 1.35;
  margin-bottom: 20px;
}

.hero-domain-formula {
  font-family: var(--font-body);
  font-size: 21px;
  font-weight: 600;
  color: var(--orange-accent);
  letter-spacing: 1.2px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 8px 24px;
  background: var(--orange-soft);
  border: 1px solid var(--orange-border);
  border-radius: 4px;
}

.formula-sep {
  color: var(--orange-accent);
  font-weight: 700;
  opacity: 0.7;
}

/* Middle: Simple Linear Pipeline Diagram */
.pipeline-diagram-wrapper {
  width: 100%;
  max-width: 1540px;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 20px 0;
}

.pipeline-diagram {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: var(--surface-muted);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 24px 32px;
}

.pipeline-node {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--slide-bg);
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  padding: 18px 16px;
  min-height: 114px;
  justify-content: center;
  transition: border-color 0.2s ease;
}

.pipeline-node.anchor-node {
  border-color: var(--orange-accent);
  background: #FFFDFB;
}

.node-step {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 1px;
  margin-bottom: 5px;
}

.node-title {
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 6px;
  line-height: 1.2;
}

.node-desc {
  font-family: var(--font-body);
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.35;
}

.pipeline-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 12px;
  color: var(--border-dark);
  flex-shrink: 0;
}

.pipeline-arrow svg {
  width: 24px;
  height: 24px;
  stroke: var(--border-dark);
  stroke-width: 2;
  fill: none;
}

/* Bottom: University & Team Section */
.bottom-institutional-section {
  width: 100%;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}

.inst-university {
  font-family: var(--font-heading);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 3.5px;
  color: var(--navy-primary);
  text-transform: uppercase;
}

.inst-department {
  font-family: var(--font-body);
  font-size: 17px;
  letter-spacing: 1px;
  color: var(--text-body);
}

.inst-team-info {
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Keyboard / Presentation Navigation Hint (Unobtrusive) */
.nav-hint-overlay {
  position: absolute;
  bottom: 12px;
  right: 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #94A3B8;
  letter-spacing: 1px;
  pointer-events: none;
  opacity: 0.4;
}

/* ==========================================================================
   SLIDE 02: PRESENTATION OVERVIEW (ACADEMIC JOURNEY)
   Visual: C-shaped continuous research pathway
   ========================================================================== */

.slide-02-academic-title {
  position: absolute;
  left: 140px;
  top: 100px;
  font-family: var(--font-heading);
  font-size: 46px;
  font-weight: 700;
  color: var(--navy-primary);
  letter-spacing: 0.5px;
}

.slide-02-title-divider {
  position: absolute;
  left: 140px;
  top: 170px;
  width: 80px;
  height: 4px;
  background: var(--orange-accent);
}

.methodology-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.meth-svg-backbone {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.meth-stage {
  position: absolute;
  z-index: 2;
  display: flex;
  flex-direction: column;
}

.meth-node {
  width: 14px;
  height: 14px;
  background: var(--navy-primary);
  margin-top: -7px;
  margin-left: -7px;
  border-radius: 2px;
}

.meth-content {
  padding-top: 35px;
}

.meth-num {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  color: var(--navy-slate);
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.meth-title {
  font-family: var(--font-body);
  font-size: 30px;
  font-weight: 600;
  color: var(--navy-primary);
  line-height: 1.25;
}

/* 03 ChainForensics Design */
.meth-highlight .meth-node {
  width: 20px;
  height: 20px;
  background: var(--orange-accent);
  margin-top: -10px;
  margin-left: -10px;
  box-shadow: 0 0 0 6px var(--orange-soft);
  border-radius: 3px;
}

.meth-highlight .meth-content {
  border-left: 3px solid var(--orange-accent);
  padding-left: 30px;
  padding-top: 25px;
  padding-bottom: 30px;
  margin-left: -3px;
  margin-top: 10px;
  background: linear-gradient(90deg, rgba(217,83,30,0.04) 0%, rgba(217,83,30,0) 100%);
  width: 420px;
}

.meth-highlight .meth-num {
  font-size: 28px;
  color: var(--orange-accent);
}

.meth-highlight .meth-title {
  font-size: 34px;
  font-weight: 700;
}

/* 05 Results & Conclusion */
.meth-destination .meth-node-end {
  width: 24px;
  height: 24px;
  background: var(--slide-bg);
  border: 4px solid var(--navy-primary);
  border-radius: 50%;
  margin-top: -12px;
  margin-left: -12px;
  position: relative;
}

.meth-destination .meth-node-end::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  background: var(--navy-primary);
  border-radius: 50%;
}

.meth-destination .meth-content {
  border-left: 2px solid var(--border-medium);
  border-bottom: 2px solid var(--border-medium);
  padding-left: 30px;
  padding-bottom: 30px;
  padding-top: 25px;
  margin-left: -2px;
  margin-top: 10px;
  width: 400px;
  border-bottom-left-radius: 8px;
}

/* ==========================================================================
   SLIDE 03: THE PROBLEM
   Visual: Two-Part Technical Composition (Pathway + Table)
   ========================================================================== */

#slide-03 {
  background: var(--slide-bg);
}

.slide-03-title {
  position: absolute;
  left: 140px;
  top: 90px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
  width: 1200px;
}

.slide-03-title-divider {
  position: absolute;
  left: 140px;
  top: 155px;
  width: 80px;
  height: 4px;
  background: var(--orange-accent);
}

.s3-content-wrapper {
  position: absolute;
  top: 220px;
  left: 140px;
  right: 140px;
  display: flex;
  gap: 100px;
  align-items: flex-start;
}

/* -------------------------
   LEFT COLUMN: PATHWAY
   ------------------------- */
.s3-left-col {
  flex: 0 0 450px;
}

.s3-pathway {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.s3-node {
  background: var(--surface-card);
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  width: 100%;
  text-align: center;
  padding: 20px;
  box-shadow: 0 4px 10px rgba(12,30,54,0.03);
}

.s3-node-title {
  font-family: var(--font-body);
  font-size: 24px;
  font-weight: 700;
  color: var(--navy-primary);
}

.s3-node-sub {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: 1px;
}

.s3-event {
  border-left: 4px solid var(--navy-primary);
}

.s3-log {
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--navy-primary);
  box-shadow: 0 6px 15px rgba(12,30,54,0.08);
}

.s3-log-title {
  background: var(--navy-primary);
  color: white;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  padding: 14px;
  letter-spacing: 1px;
}

.s3-log-data {
  padding: 18px 24px;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--navy-primary);
  background: #fdfcfa;
}

.s3-log-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  border-bottom: 1px dashed var(--border-light);
  padding-bottom: 4px;
}

.s3-log-row:last-child {
  margin-bottom: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.status-rec {
  color: #059669;
  font-weight: 700;
}

.s3-distinction {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #FEF2F2;
  border: 1px solid #FECACA;
  border-radius: 6px;
  padding: 16px 20px;
  margin-top: 20px;
  width: 90%;
  box-shadow: 0 4px 10px rgba(239, 68, 68, 0.05);
}

.s3-dist-text {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.5px;
}

.s3-dist-alert {
  color: var(--status-tampered);
}

.s3-dist-icon {
  margin: 8px 0;
  color: var(--status-tampered);
}

.s3-arrow-down {
  width: 2px;
  height: 40px;
  background: var(--border-dark);
  position: relative;
  margin: 6px 0;
}

.s3-arrow-down::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: -4px;
  border-width: 5px;
  border-style: solid;
  border-color: var(--border-dark) transparent transparent transparent;
}

.s3-arrow-alert {
  background: var(--orange-accent);
  height: 40px;
}

.s3-arrow-alert::after {
  border-color: var(--orange-accent) transparent transparent transparent;
}

.s3-compromised {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  background: var(--orange-soft);
  border: 2px solid var(--orange-accent);
  color: var(--orange-accent);
  padding: 20px;
  letter-spacing: 1px;
}

/* -------------------------
   RIGHT COLUMN: TABLE
   ------------------------- */
.s3-right-col {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.s3-table-title {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 25px;
  border-bottom: 2px solid var(--orange-accent);
  padding-bottom: 8px;
  display: inline-block;
  align-self: flex-start;
}

.s3-threat-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface-card);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(12,30,54,0.05);
  border: 1px solid var(--border-medium);
}

.s3-threat-table th {
  background: var(--navy-primary);
  color: white;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
  text-align: left;
  padding: 20px 28px;
  letter-spacing: 0.5px;
}

.s3-threat-table td {
  padding: 28px;
  border-bottom: 1px solid var(--border-light);
  font-family: var(--font-body);
  font-size: 21px;
  color: var(--text-body);
  line-height: 1.5;
  vertical-align: top;
}

.s3-threat-table tr:last-child td {
  border-bottom: none;
}

.threat-name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 700;
  color: var(--navy-dark);
  letter-spacing: 1px;
}

.threat-concern {
  color: var(--navy-slate);
}

/* -------------------------
   BOTTOM: FORENSIC QUESTION
   ------------------------- */
.s3-question-area {
  position: absolute;
  bottom: 60px;
  left: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.s3-q-line {
  width: 800px;
  height: 2px;
  background: var(--border-medium);
  margin-bottom: 30px;
}

.s3-q-text {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 700;
  color: var(--navy-primary);
  text-align: center;
  line-height: 1.3;
}

.s3-q-hl {
  color: var(--orange-accent);
}

/* ==========================================================================
   SLIDE 04: MOTIVATION & RESEARCH GAP
   Visual: Research-gap matrix + Forensic interpretation
   ========================================================================== */

#slide-04 {
  background: var(--slide-bg);
}

.slide-04-title {
  position: absolute;
  left: 140px;
  top: 90px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
}

.s4-container {
  position: absolute;
  top: 170px;
  left: 140px;
  right: 140px;
  height: 890px;
  display: flex;
  flex-direction: column;
}

/* --- 1. RESEARCH GAP MATRIX --- */
.s4-matrix {
  display: flex;
  flex-direction: column;
  width: 100%;
  border: 1px solid var(--border-medium);
  border-radius: 6px;
  overflow: visible;
  height: auto;
  box-shadow: 0 4px 15px rgba(12, 30, 54, 0.04);
}

.s4-matrix-header {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  background: var(--navy-primary);
  color: white;
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
}

.s4-m-col {
  padding: 16px 30px;
}

.s4-m-center {
  background: rgba(255,255,255,0.05);
  border-left: 1px solid rgba(255,255,255,0.1);
  border-right: 1px solid rgba(255,255,255,0.1);
}

.s4-matrix-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  background: white;
  border-bottom: 1px solid var(--border-light);
}

.s4-matrix-row:last-child {
  border-bottom: none;
  border-bottom-left-radius: 5px;
  border-bottom-right-radius: 5px;
}

.s4-matrix-row.alt-row {
  background: #fcfcfc;
}

.s4-m-cell {
  padding: 15px 30px;
  font-family: 'Times New Roman', serif;
  font-size: 16px;
  color: var(--text-body);
  line-height: 1.35;
  display: flex;
  flex-direction: column;
  justify-content: center;
  white-space: normal;
  overflow: visible;
}

.s4-m-col1 {
  color: var(--navy-dark);
  font-weight: 700;
}

.s4-m-limitation {
  color: var(--navy-slate);
  position: relative;
  background: rgba(244, 123, 32, 0.015);
  border-left: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
}

.s4-lim-marker {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: var(--slide-bg);
  border: 2px solid var(--orange-accent);
  border-radius: 50%;
  z-index: 2;
}

.s4-m-req {
  color: var(--navy-primary);
  font-weight: 600;
  padding-left: 45px;
}

/* --- 2. WHERE THE GAP APPEARS --- */
.s4-gap-analysis {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 35px;
  padding: 30px 0;
  border-top: 1px dashed var(--border-medium);
  border-bottom: 1px dashed var(--border-medium);
}

.s4-gap-label {
  font-family: 'Courier New', Courier, monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.s4-gap-sequence {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 25px;
}

.s4-seq-node {
  font-family: 'Courier New', Courier, monospace;
  font-size: 16px;
  font-weight: 700;
  background: var(--surface-card);
  border: 1px solid var(--border-medium);
  padding: 8px 16px;
  border-radius: 4px;
  color: var(--navy-dark);
}

.s4-seq-alert {
  border-color: var(--orange-accent);
  color: var(--orange-accent);
  background: rgba(244, 123, 32, 0.05);
}

.s4-seq-arrow {
  color: var(--border-dark);
  font-family: var(--font-mono);
  font-weight: bold;
  font-size: 20px;
}

.s4-gap-question {
  font-family: var(--font-heading);
  font-size: 34px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 25px;
  text-align: center;
}

.s4-gap-statement {
  font-family: var(--font-heading);
  font-size: 32px;
  color: var(--navy-dark);
  text-align: center;
  line-height: 1.4;
  max-width: 1200px;
}

.s4-hl {
  color: var(--orange-accent);
  font-weight: 700;
}

/* --- 3. CONVERGENCE --- */
.s4-convergence-tree {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 35px;
  gap: 15px;
}

.s4-conv-domains {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.s4-conv-d {
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  color: var(--navy-slate);
  text-align: right;
  padding-right: 10px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.s4-conv-svg {
  display: flex;
  align-items: center;
}

.s4-conv-target {
  font-family: var(--font-heading);
  font-size: 34px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-left: 15px;
  letter-spacing: 1px;
}

/* ==========================================================================
   SLIDE NUMBER PILL
   ========================================================================== */
.slide-pill {
  position: absolute;
  bottom: 40px;
  right: 60px;
  background: white;
  color: var(--navy-slate);
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--border-medium);
  box-shadow: 0 4px 10px rgba(12, 30, 54, 0.05);
  z-index: 1000;
  letter-spacing: 1px;
}

/* ==========================================================================
   SLIDE 05: INTERNET OF THINGS (IoT FOUNDATION)
   Visual: Academic Architecture Diagram + Technical Analysis
   ========================================================================== */

#slide-05 {
  background: var(--slide-bg);
}

.slide-05-title {
  position: absolute;
  left: 140px;
  top: 80px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-05-subtitle {
  position: absolute;
  left: 140px;
  top: 135px;
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  color: var(--navy-slate);
}

.s5-container {
  position: absolute;
  top: 200px;
  left: 140px;
  right: 140px;
  height: 800px;
  display: flex;
  flex-direction: column;
}

/* 1. Architecture */
.s5-architecture {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 50px;
}

.s5-arch-node {
  position: relative;
  z-index: 3;
  width: 250px;
  background: white;
  border: 1px solid var(--border-medium);
  border-top: 4px solid var(--navy-primary);
  border-radius: 4px;
  padding: 24px 20px;
  box-shadow: 0 4px 10px rgba(12, 30, 54, 0.03);
  display: flex;
  flex-direction: column;
  height: 260px;
}

.s5-node-head {
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--navy-dark);
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.s5-node-role {
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  color: var(--text-body);
  line-height: 1.3;
  margin-bottom: 15px;
  flex: 1;
}

.s5-node-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 15px;
}

.s5-node-list span {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  background: var(--surface-card);
  border: 1px solid var(--border-medium);
  padding: 4px 8px;
  border-radius: 2px;
  color: var(--navy-slate);
}

.s5-node-anno {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-slate);
  border-top: 1px dashed var(--border-light);
  padding-top: 15px;
  line-height: 1.4;
}

.s5-connector {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
}

.s5-conn-line {
  position: absolute;
  top: 90px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--border-medium);
  z-index: 1;
}

.s5-conn-label {
  position: absolute;
  top: 70px;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange-accent);
  background: var(--slide-bg);
  padding: 0 8px;
  z-index: 2;
  white-space: nowrap;
}

.s5-conn-arrow {
  position: absolute;
  right: 0;
  top: 86px;
  width: 10px;
  height: 10px;
  border-top: 2px solid var(--border-medium);
  border-right: 2px solid var(--border-medium);
  transform: rotate(45deg);
  z-index: 2;
}

/* 2. Fundamentals */
.s5-fundamentals {
  display: flex;
  gap: 60px;
  margin-bottom: 40px;
}

.s5-fund-left {
  flex: 1.3;
}

.s5-fund-right {
  flex: 1;
}

.s5-section-label {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-medium);
  padding-bottom: 8px;
}

.s5-def-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 40px;
}

.s5-def-item {
  display: flex;
  flex-direction: column;
}

.s5-def-title {
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 6px;
}

.s5-def-desc {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--text-body);
  line-height: 1.4;
}

.s5-tech-table {
  width: 100%;
  border-collapse: collapse;
}

.s5-tech-table th,
.s5-tech-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  font-family: 'Times New Roman', serif;
  font-size: 19px;
}

.s5-tech-table th {
  font-weight: 700;
  color: var(--navy-dark);
  background: rgba(23, 34, 56, 0.03);
}

.s5-td-strong {
  font-weight: 700;
  color: var(--navy-primary);
}

/* 3. Mapping */
.s5-mapping {
  background: white;
  border: 1px solid var(--border-light);
  border-left: 6px solid var(--orange-accent);
  padding: 25px 40px;
  display: flex;
  flex-direction: column;
  border-radius: 4px;
  box-shadow: 0 4px 10px rgba(12, 30, 54, 0.02);
}

.s5-map-label {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 15px;
}

.s5-map-path {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 12px;
}

.s5-m-node {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: var(--navy-dark);
}

.s5-m-arrow {
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--border-dark);
}

.s5-m-hl {
  color: var(--orange-accent);
}

.s5-map-desc {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-slate);
}

/* ==========================================================================
   SLIDE 06: IoT SECURITY: THREATS & ATTACK SURFACE
   Visual: Attack-surface model + Security requirements matrix
   ========================================================================== */

#slide-06 {
  background: var(--slide-bg);
}

.slide-06-title {
  position: absolute;
  left: 140px;
  top: 70px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-06-subtitle {
  position: absolute;
  left: 140px;
  top: 125px;
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  color: var(--navy-slate);
}

.s6-container {
  position: absolute;
  top: 175px;
  left: 140px;
  right: 140px;
  height: 800px;
  display: flex;
  flex-direction: column;
}

/* 1. What Makes IoT Different */
.s6-context {
  margin-bottom: 25px;
}

.s6-ctx-label {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.s6-ctx-text {
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  color: var(--text-body);
  margin-bottom: 12px;
  max-width: 1200px;
}

.s6-ctx-descriptors {
  display: flex;
  align-items: center;
  gap: 15px;
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-primary);
}

.s6-dot {
  color: var(--orange-accent);
}

/* 2. Three-Layer Attack Surface */
.s6-attack-surface {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
  position: relative;
}

/* Continuous attack surface rail */
.s6-attack-surface::before {
  content: '';
  position: absolute;
  top: 38px;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--navy-primary);
  z-index: 1;
}

.s6-layer {
  position: relative;
  z-index: 2;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  box-shadow: 0 4px 10px rgba(12, 30, 54, 0.03);
  display: flex;
  flex-direction: column;
}

.s6-layer-header {
  background: var(--navy-primary);
  color: white;
  padding: 16px 20px;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  text-align: center;
}

.s6-lh-num {
  font-family: 'Times New Roman', serif;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.s6-lh-sub {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: rgba(255,255,255,0.7);
  letter-spacing: 1.5px;
}

.s6-layer-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.s6-block {
  margin-bottom: 18px;
}
.s6-block:last-child {
  margin-bottom: 0;
}

.s6-block-title {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  margin-bottom: 8px;
  letter-spacing: 1px;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 4px;
}

.s6-layer-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.s6-layer-content li {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-dark);
  margin-bottom: 6px;
  padding-left: 12px;
  position: relative;
}

.s6-layer-content li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--border-medium);
}

.s6-block-threats {
  background: rgba(244, 123, 32, 0.03);
  padding: 12px 12px 6px 12px;
  border-radius: 4px;
  border-left: 3px solid var(--orange-accent);
}

.s6-block-threats .s6-block-title {
  color: var(--orange-accent);
  border-bottom-color: rgba(244, 123, 32, 0.2);
}

.s6-block-threats li {
  font-weight: 600;
}
.s6-block-threats li::before {
  color: var(--orange-accent);
}

.s6-impact-text {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  font-style: italic;
  color: var(--navy-dark);
  line-height: 1.3;
}

/* 3. Security Requirements Matrix */
.s6-requirements {
  margin-bottom: 25px;
}

.s6-req-header {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.s6-req-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 15px;
}

.s6-req-box {
  background: white;
  border: 1px solid var(--border-medium);
  padding: 16px;
  border-radius: 4px;
  position: relative;
}

.s6-req-title {
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 8px;
}

.s6-req-desc {
  font-family: 'Times New Roman', serif;
  font-size: 17px;
  color: var(--text-body);
  line-height: 1.3;
}

.s6-req-focus {
  border: 2px solid var(--orange-accent);
  background: rgba(244, 123, 32, 0.04);
}

.s6-req-focus .s6-req-title {
  color: var(--orange-accent);
}

.s6-req-tag {
  position: absolute;
  top: -12px;
  left: 12px;
  background: var(--orange-accent);
  color: white;
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 2px;
  letter-spacing: 1px;
}

/* 4. Bottom Project Connection */
.s6-bottom-strip {
  background: white;
  border-left: 6px solid var(--orange-accent);
  border-top: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 20px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 4px;
  box-shadow: 0 4px 10px rgba(12, 30, 54, 0.03);
}

.s6-strip-left {
  flex: 1.5;
  padding-right: 40px;
  border-right: 1px solid var(--border-light);
}

.s6-strip-label {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 1.5px;
  margin-bottom: 8px;
}

.s6-strip-statement {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 400;
  color: var(--navy-dark);
  line-height: 1.3;
}

.s6-strip-right {
  flex: 1;
  padding-left: 40px;
}

.s6-flow {
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  color: var(--navy-slate);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.s6-flow span {
  font-weight: 600;
  color: var(--navy-dark);
}

.s6-hl {
  color: var(--orange-accent) !important;
}

/* ==========================================================================
   SLIDE 07: BLOCKCHAIN FUNDAMENTALS
   ========================================================================== */
#slide-07 { background: var(--slide-bg); }

.slide-07-title {
  position: absolute;
  left: 140px;
  top: 70px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-07-subtitle {
  position: absolute;
  left: 140px;
  top: 125px;
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  color: var(--navy-slate);
}

.s7-container {
  position: absolute;
  top: 170px;
  left: 140px;
  right: 140px;
  height: 800px;
  display: flex;
  flex-direction: column;
}

/* 1. Definition */
.s7-definition {
  margin-bottom: 20px;
  display: flex;
  align-items: baseline;
  gap: 15px;
}
.s7-def-label {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
}
.s7-def-text {
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  color: var(--navy-dark);
}

/* 2. Hero Visual: Construction Flow */
.s7-construction {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
  padding: 15px 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.s7-conn-arrow {
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--border-dark);
  margin: 0 10px;
  margin-top: 80px;
}

.s7-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.s7-st-head {
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 12px;
  text-align: center;
  white-space: nowrap;
}

.s7-st-anno {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-slate);
  text-align: center;
  margin-top: 10px;
  max-width: 200px;
}

/* TX */
.s7-tx-box {
  border: 1px solid var(--border-medium);
  background: white;
  padding: 12px 20px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-dark);
  box-shadow: 0 4px 10px rgba(12, 30, 54, 0.02);
}
.s7-tx-title {
  font-weight: 700;
  border-bottom: 1px dashed var(--border-medium);
  padding-bottom: 6px;
  margin-bottom: 6px;
  color: var(--navy-slate);
}
.s7-tx-field {
  margin-bottom: 2px;
}

/* HASH */
.s7-hash-flow {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-slate);
  margin-bottom: 12px;
  text-align: center;
  margin-top: 10px;
}
.s7-hash-val {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: white;
  background: var(--orange-accent);
  padding: 10px 16px;
  border-radius: 4px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(244, 123, 32, 0.2);
}

/* Blocks */
.s7-blocks-container {
  display: flex;
  align-items: flex-start;
}

.s7-block-node {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.s7-block-body {
  border: 2px solid var(--navy-primary);
  background: white;
  border-radius: 4px;
  padding: 12px 16px;
  width: 210px;
  box-shadow: 0 4px 10px rgba(12, 30, 54, 0.04);
}
.s7-block-title {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-primary);
  border-bottom: 1px solid var(--navy-primary);
  padding-bottom: 6px;
  margin-bottom: 10px;
}
.s7-block-field-group {
  margin-bottom: 8px;
}
.s7-block-field-group:last-child { margin-bottom: 0; }
.s7-b-label {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-slate);
}
.s7-b-val {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-dark);
}

.s7-hash-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 15px;
  width: 140px;
  position: relative;
  height: 120px;
  margin-top: 50px;
}
.s7-hl-label {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--orange-accent);
  position: absolute;
  top: 10px;
}
.s7-hl-line {
  position: absolute;
  top: 35px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--orange-accent);
}
.s7-hl-arrow {
  position: absolute;
  top: 31px;
  right: 0;
  width: 10px;
  height: 10px;
  border-top: 2px solid var(--orange-accent);
  border-right: 2px solid var(--orange-accent);
  transform: rotate(45deg);
}
.s7-hl-desc {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  text-align: center;
  position: absolute;
  top: 50px;
}
.s7-hl-warn {
  font-family: 'Times New Roman', serif;
  font-size: 12px;
  color: var(--orange-accent);
  text-align: center;
  position: absolute;
  top: 85px;
  font-style: italic;
  line-height: 1.2;
}
.s7-hl-target {
  color: var(--orange-accent);
}

/* Ledger */
.s7-ledger-nodes {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  position: relative;
}
.s7-lnode {
  border: 1px solid var(--border-medium);
  background: white;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  padding: 6px 16px;
  border-radius: 16px;
  color: var(--navy-primary);
  font-weight: 700;
  z-index: 2;
  box-shadow: 0 2px 5px rgba(12, 30, 54, 0.03);
}
.s7-lnet-line {
  position: absolute;
  width: 2px;
  background: var(--border-medium);
  top: 10px;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.s7-st-consensus {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-primary);
  text-align: center;
  margin-top: 8px;
  background: rgba(23, 34, 56, 0.05);
  padding: 4px 8px;
  border-radius: 4px;
}

/* 3. Concepts */
.s7-concepts {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 15px;
  margin-bottom: 20px;
}
.s7-concept {
  background: white;
  border: 1px solid var(--border-light);
  padding: 16px;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(12, 30, 54, 0.02);
}
.s7-c-head {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 4px;
}
.s7-c-text {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-dark);
  margin-bottom: 10px;
  line-height: 1.3;
}
.s7-c-mech {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-slate);
}
.s7-c-mech span {
  font-weight: 700;
  color: var(--navy-primary);
}
.s7-c-sc {
  border-left: 3px solid var(--orange-accent);
}
.s7-sc-visual {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--orange-accent);
  margin-top: 10px;
  font-weight: 700;
}

/* 4. Relevance */
.s7-relevance {
  background: white;
  border-left: 6px solid var(--orange-accent);
  border-top: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 20px 30px;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
}
.s7-rel-header {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 1.5px;
  margin-bottom: 8px;
}
.s7-rel-main {
  font-family: var(--font-heading);
  font-size: 28px;
  color: var(--navy-dark);
  line-height: 1.3;
  margin-bottom: 15px;
}
.s7-hl {
  color: var(--orange-accent);
  font-weight: 700;
}
.s7-rel-split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px dashed var(--border-medium);
  padding-top: 12px;
  margin-bottom: 12px;
}
.s7-rs-left {
  display: flex;
  gap: 40px;
}
.s7-rs-label {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-slate);
  margin-bottom: 4px;
}
.s7-rs-val {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-primary);
  font-weight: 700;
}
.s7-rs-right {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.s7-rs-flow {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  color: var(--navy-dark);
  font-weight: 700;
}

.s7-notes-row {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border-light);
  padding-top: 10px;
}
.s7-note {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-slate);
  font-style: italic;
  max-width: 48%;
  line-height: 1.3;
}

/* ==========================================================================
   SLIDE 08: DIGITAL FORENSICS
   ========================================================================== */
#slide-08 { background: var(--slide-bg); }

.slide-08-title {
  position: absolute;
  left: 140px;
  top: 70px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-08-subtitle {
  position: absolute;
  left: 140px;
  top: 125px;
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  color: var(--navy-slate);
}

.s8-container {
  position: absolute;
  top: 170px;
  left: 140px;
  right: 140px;
  height: 800px;
  display: flex;
  flex-direction: column;
}

/* 1. Definition and Principles */
.s8-def-section {
  display: flex;
  gap: 40px;
  margin-bottom: 20px;
}
.s8-def-left {
  flex: 1;
}
.s8-def-label {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.s8-def-text {
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  color: var(--navy-dark);
  line-height: 1.3;
}
.s8-principles {
  flex: 1.5;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 15px;
}
.s8-principle {
  background: white;
  border-top: 3px solid var(--navy-primary);
  padding: 12px;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(12, 30, 54, 0.02);
}
.s8-pr-head {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 6px;
  letter-spacing: 1px;
}
.s8-pr-text {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-slate);
  line-height: 1.2;
}

/* 2. Hero Visual: Forensic Lifecycle */
.s8-lifecycle-container {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 15px 20px;
  margin-bottom: 20px;
  position: relative;
  box-shadow: 0 4px 15px rgba(12, 30, 54, 0.02);
}
.s8-lc-label {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 15px;
}
.s8-lc-rail {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
}
.s8-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0 5px;
  position: relative;
}
.s8-stage-hl {
  background: rgba(244, 123, 32, 0.03);
  border: 2px solid var(--orange-accent);
  border-radius: 4px;
  padding: 15px 10px;
  transform: translateY(-10px);
  box-shadow: 0 4px 12px rgba(244, 123, 32, 0.1);
  z-index: 2;
}
.s8-st-tag {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: white;
  background: var(--orange-accent);
  padding: 3px 6px;
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  border-radius: 2px;
}
.s8-st-head {
  font-family: 'Times New Roman', serif;
  font-size: 21px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 4px;
}
.s8-stage-hl .s8-st-head {
  color: var(--orange-accent);
}
.s8-st-sub {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--border-dark);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.s8-st-desc {
  font-family: 'Times New Roman', serif;
  font-size: 16px;
  color: var(--navy-dark);
  line-height: 1.2;
  margin-bottom: 10px;
}
.s8-st-anno {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  background: var(--slide-bg);
  padding: 4px 8px;
  border-radius: 2px;
  display: inline-block;
  align-self: flex-start;
  margin-top: auto;
}
.s8-lc-arrow {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--border-medium);
  margin: 0 4px;
  padding-top: 25px;
}
.s8-arrow-hl {
  color: var(--orange-accent);
  font-weight: 700;
}
.s8-pivot-expl {
  text-align: center;
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--orange-accent);
  font-style: italic;
  margin-top: 5px;
}

/* 3. Transformation & IoT Context */
.s8-lower-split {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
  flex: 1;
}
.s8-tb-head {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-primary);
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 6px;
  margin-bottom: 12px;
}
.s8-trans-box, .s8-iot-box {
  flex: 1;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 15px 20px;
  display: flex;
  flex-direction: column;
}
.s8-trans-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 10px;
}
.s8-tf-node {
  font-family: 'Times New Roman', serif;
  font-size: 17px;
  color: var(--navy-dark);
  background: var(--slide-bg);
  padding: 4px 16px;
  border-radius: 16px;
  border: 1px solid var(--border-light);
}
.s8-tf-hl {
  border-color: var(--orange-accent);
  color: var(--orange-accent);
  font-weight: 700;
  background: rgba(244, 123, 32, 0.05);
}
.s8-tf-arr {
  color: var(--border-medium);
  font-size: 14px;
}
.s8-tf-note {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  text-align: center;
  line-height: 1.4;
  margin-top: auto;
  border-top: 1px dashed var(--border-light);
  padding-top: 10px;
}

.s8-iot-content {
  display: flex;
  gap: 20px;
  height: 100%;
}
.s8-iot-sources {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  flex: 1;
}
.s8-is-node {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-dark);
  background: var(--slide-bg);
  padding: 3px 10px;
  border-radius: 2px;
}
.s8-is-arr {
  color: var(--border-medium);
  font-size: 12px;
  margin-left: 15px;
}
.s8-hl-text {
  color: var(--orange-accent);
  font-weight: 700;
}
.s8-iot-table-wrap {
  flex: 1.5;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.s8-table {
  width: 100%;
  border-collapse: collapse;
}
.s8-table th {
  text-align: left;
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  border-bottom: 1px solid var(--border-medium);
  padding-bottom: 4px;
}
.s8-table td {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-dark);
  padding: 6px 0;
  border-bottom: 1px solid var(--border-light);
}
.s8-table tr:last-child td { border-bottom: none; }

/* 4. Project Bridge */
.s8-bridge {
  background: white;
  border-left: 6px solid var(--orange-accent);
  border-top: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 15px 25px;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.s8-bridge-top {
  display: flex;
  align-items: baseline;
  gap: 30px;
}
.s8-bridge-head {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-accent);
}
.s8-bridge-flow {
  font-family: 'Times New Roman', serif;
  font-size: 21px;
  color: var(--navy-dark);
  font-weight: 700;
}
.s8-bridge-desc {
  font-family: var(--font-heading);
  font-size: 24px;
  color: var(--navy-slate);
  line-height: 1.3;
}

/* ==========================================================================
   SLIDE 09: LITERATURE REVIEW
   ========================================================================== */
#slide-09 { background: var(--slide-bg); }

.slide-09-title {
  position: absolute;
  left: 140px;
  top: 70px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-09-subtitle {
  position: absolute;
  left: 140px;
  top: 125px;
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  color: var(--navy-slate);
}

.s9-container {
  position: absolute;
  top: 175px;
  left: 140px;
  right: 140px;
  height: 785px;
  display: flex;
  flex-direction: column;
}

/* 1. Matrix */
.s9-matrix-container {
  flex: 1;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 15px 25px;
  box-shadow: 0 4px 15px rgba(12, 30, 54, 0.02);
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
}

.s9-matrix {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 12px;
  flex: 1;
}

.s9-matrix th {
  text-align: left;
  font-family: 'Times New Roman', serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-primary);
  border-bottom: 2px solid var(--navy-primary);
  padding: 10px 10px 14px 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.s9-matrix td {
  padding: 14px 10px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

.s9-matrix tbody tr:last-child td {
  border-bottom: none;
}

.s9-matrix tbody tr:nth-child(even) {
  background: rgba(23, 34, 56, 0.02);
}

.s9-col-study { width: 22%; }
.s9-col-tick { width: 9%; text-align: center !important; }
.s9-col-focus { width: 25%; }
.s9-col-scope { width: 26%; }

.s9-study-name {
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 4px;
}

.s9-study-sub {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-slate);
}

.s9-tick {
  color: #388e3c;
  font-size: 18px;
  font-weight: 700;
}

.s9-col-focus {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-dark);
  line-height: 1.3;
}

.s9-col-scope {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-slate);
  line-height: 1.3;
  font-style: italic;
}

.s9-citations {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--border-medium);
  text-align: right;
  border-top: 1px dashed var(--border-light);
  padding-top: 8px;
}

/* 2. Synthesis */
.s9-synthesis {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
}

.s9-syn-label {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.s9-syn-flow {
  display: flex;
  align-items: center;
  gap: 15px;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 15px 20px;
  box-shadow: 0 2px 6px rgba(12, 30, 54, 0.02);
}

.s9-syn-node {
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  color: var(--navy-dark);
  flex: 1;
  text-align: center;
  line-height: 1.3;
}

.s9-syn-arrow {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--border-medium);
}

/* 3. Remaining Focus */
.s9-focus-section {
  display: flex;
  align-items: center;
  gap: 30px;
  background: white;
  border-left: 6px solid var(--orange-accent);
  border-top: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 20px 25px;
  border-radius: 4px;
  box-shadow: 0 4px 10px rgba(12, 30, 54, 0.03);
}

.s9-focus-left {
  flex: 1.5;
  border-right: 1px solid var(--border-light);
  padding-right: 30px;
}
.s9-focus-left .s9-syn-label {
  color: var(--orange-accent);
}

.s9-focus-statement {
  font-family: var(--font-heading);
  font-size: 28px;
  color: var(--navy-dark);
  line-height: 1.3;
}

.s9-focus-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.s9-fr-row {
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  color: var(--navy-slate);
}

.s9-fr-old {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  display: inline-block;
  width: 150px;
}

.s9-fr-new {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-accent);
  display: inline-block;
  width: 150px;
}

.s9-fr-val {
  font-weight: 700;
  color: var(--navy-dark);
}

.s9-hl-text {
  color: var(--orange-accent) !important;
}

/* ==========================================================================
   SLIDE 10: LITERATURE GAP / POSITIONING
   ========================================================================== */
#slide-10 { background: var(--slide-bg); }

.slide-10-title {
  position: absolute;
  left: 140px;
  top: 70px;
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-10-subtitle {
  position: absolute;
  left: 140px;
  top: 125px;
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  color: var(--navy-slate);
}

.s10-container {
  position: absolute;
  top: 170px;
  left: 140px;
  right: 140px;
  height: 790px;
  display: flex;
  flex-direction: column;
}

/* 1. Capability Matrix */
.s10-matrix-wrapper {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 10px 20px;
  box-shadow: 0 4px 15px rgba(12, 30, 54, 0.02);
  margin-bottom: 20px;
}

.s10-matrix {
  width: 100%;
  border-collapse: collapse;
}

.s10-matrix th {
  text-align: left;
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-primary);
  border-bottom: 2px solid var(--navy-primary);
  padding: 8px 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.s10-col-cap { width: 24%; }
.s10-col-exist { width: 22%; text-align: center !important; }
.s10-col-cf { width: 16%; text-align: center !important; }
.s10-col-pos { width: 38%; }

.s10-matrix td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}

.s10-matrix tbody tr:last-child td {
  border-bottom: none;
}

/* Base text styles */
.s10-col-cap {
  font-family: 'Times New Roman', serif;
  font-size: 17px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s10-tick {
  color: #388e3c;
  font-size: 18px;
  font-weight: 700;
}
.s10-col-pos {
  font-family: 'Times New Roman', serif;
  font-size: 17px;
  color: var(--navy-dark);
}
.s10-text-varies {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-slate);
  font-style: italic;
}

/* Highlighted Row */
.s10-row-hl {
  background: rgba(244, 123, 32, 0.03);
  border-left: 4px solid var(--orange-accent);
}
.s10-row-hl td {
  border-top: 1px solid rgba(244, 123, 32, 0.2);
  border-bottom: 1px solid rgba(244, 123, 32, 0.2);
}
.s10-cap-hl {
  color: var(--orange-accent);
}
.s10-tick-hl {
  color: var(--orange-accent);
}
.s10-pos-hl {
  font-weight: 700;
  position: relative;
}
.s10-anno {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: white;
  background: var(--orange-accent);
  padding: 2px 6px;
  border-radius: 2px;
  position: absolute;
  top: -8px;
  right: 10px;
}

/* 2. Gap Decomposition */
.s10-lower-section {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.s10-gap-label {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
  margin-bottom: 15px;
}

.s10-gap-flow {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  margin-bottom: 10px;
}

.s10-gf-box {
  flex: 1;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 15px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(12, 30, 54, 0.02);
}
.s10-gf-bridge {
  flex: 1.5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 15px;
  position: relative;
}
.s10-gf-connector {
  flex: 0.2;
  border-top: 2px dashed var(--border-medium);
  margin-top: 25px; /* visually align with heading */
}

.s10-gf-head {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 8px;
}
.s10-orange { color: var(--orange-accent); }
.s10-gf-desc {
  font-family: 'Times New Roman', serif;
  font-size: 16px;
  color: var(--navy-slate);
  line-height: 1.2;
}

.s10-hash-rel {
  font-family: 'Courier New', monospace;
  font-size: 20px;
  font-weight: 700;
  color: var(--orange-accent);
  background: white;
  border: 1px solid var(--orange-accent);
  padding: 8px 20px;
  border-radius: 20px;
  margin-top: 15px;
  box-shadow: 0 2px 8px rgba(244, 123, 32, 0.1);
}

.s10-hash-details {
  text-align: center;
  font-family: 'Times New Roman', serif;
  font-size: 16px;
  color: var(--navy-dark);
  margin-bottom: 25px;
}
.s10-hd-match, .s10-hd-mis {
  display: inline-block;
  padding: 0 15px;
}
.s10-hd-sep {
  color: var(--border-medium);
}

/* 3. Gap Statement & 4. Convergence */
.s10-bottom-row {
  display: flex;
  gap: 30px;
  flex: 1;
}

.s10-statement-box {
  flex: 1.5;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-right: 20px;
  border-right: 1px solid var(--border-light);
}
.s10-stat-main {
  font-family: var(--font-heading);
  font-size: 32px;
  color: var(--navy-primary);
  line-height: 1.2;
  margin-bottom: 12px;
}
.s10-stat-sub {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-slate);
  line-height: 1.4;
}

.s10-convergence-box {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.s10-conv-top {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-slate);
  display: flex;
  gap: 6px;
}
.s10-conv-arr {
  color: var(--border-medium);
  font-size: 18px;
  margin: 4px 0;
}
.s10-conv-mid {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-dark);
  text-align: center;
}
.s10-conv-bot {
  font-family: var(--font-heading);
  font-size: 28px;
  color: var(--orange-accent);
  font-weight: 700;
  margin-bottom: 6px;
}
.s10-conv-scope {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--navy-slate);
  text-align: center;
  border-top: 1px solid var(--border-light);
  padding-top: 6px;
}

/* ==========================================================================
   SLIDE 11: IoT FORENSICS & EVIDENCE INTEGRITY
   ========================================================================== */
#slide-11 { background: var(--slide-bg); }

.slide-eyebrow {
  position: absolute;
  left: 140px;
  top: 45px;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 2px;
}

.slide-11-title {
  position: absolute; top: 65px; left: 50px; right: 50px;
  font-family: var(--font-heading); font-size: 46px; font-weight: 700;
  color: var(--navy-primary); margin: 0; line-height: 1.05;
}
.slide-11-subtitle {
  position: absolute; top: 125px; left: 50px; right: 50px;
  font-family: 'Times New Roman', serif; font-size: 20px; color: var(--navy-slate);
}

.s11-container {
  position: absolute; top: 175px; left: 50px; right: 50px;
  display: flex; flex-direction: column;
}

/* 1. Core Principle */
.s11-core-principle {
  display: flex; align-items: center; justify-content: space-between;
  background: white; border-left: 6px solid var(--orange-accent);
  border: 1px solid var(--border-medium); border-left-width: 6px;
  padding: 12px 24px; border-radius: 5px; margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(12, 30, 54, 0.02);
}
.s11-cp-left {
  display: flex; flex-direction: column; border-right: 1px solid var(--border-light);
  padding-right: 24px; min-width: 180px;
}
.s11-cp-eyebrow { font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--orange-accent); margin-bottom: 6px; }
.s11-cp-head { font-family: 'Courier New', monospace; font-size: 13.5px; color: var(--navy-slate); font-weight: 700; }
.s11-cp-mid {
  flex: 1; font-family: var(--font-heading); font-size: 21px; color: var(--navy-dark);
  line-height: 1.35; padding: 0 30px; text-align: center; font-style: italic;
}
.s11-cp-right {
  display: flex; flex-direction: column; gap: 8px; border-left: 1px solid var(--border-light);
  padding-left: 24px; min-width: 180px;
}
.s11-cp-tag {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700; color: var(--navy-primary);
  background: var(--slide-bg); padding: 4px 10px; border-radius: 4px; border: 1px solid var(--border-light); text-align: center;
}
.s11-orange { color: var(--orange-accent) !important; border-color: rgba(244,123,32,0.3); background: rgba(244,123,32,0.02); }

/* 2. Three Columns */
.s11-cols {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px;
  height: 750px;
  margin-bottom: 12px;
}
.s11-col {
  background: white; border: 1px solid var(--border-medium); border-radius: 5px;
  padding: 20px; display: flex; flex-direction: column; justify-content: space-between;
  box-shadow: 0 2px 6px rgba(12, 30, 54, 0.02); overflow: hidden;
  grid-column: auto;
}

.s11-ch-wrap {
  border-bottom: 2px solid var(--navy-primary); padding-bottom: 8px; margin-bottom: 16px;
}
.s11-col-head { font-family: 'Times New Roman', serif; font-size: 24px; font-weight: 700; color: var(--navy-primary); }
.s11-col-sub { font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate); margin-top: 4px; letter-spacing: 0.02em; }

.s11-col-desc {
  font-family: 'Times New Roman', serif; font-size: 15.5px; color: var(--navy-dark);
  line-height: 1.35; margin-bottom: 20px;
}

/* COL 1 */
.s11-stream {
  display: flex; flex-direction: column; gap: 4px; margin-bottom: 20px;
}
.s11-st-item {
  display: flex; flex-direction: column; gap: 2px;
  background: var(--slide-bg); border-left: 3px solid var(--border-medium);
  padding: 4px 10px; border-radius: 2px;
}
.s11-st-num { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-primary); }
.s11-st-txt { font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-slate); }
.s11-st-arr { color: var(--border-medium); font-size: 18px; margin-left: 20px; line-height: 0.5; margin-top: 2px; margin-bottom: 2px; }

.s11-vuln-list { display: flex; flex-direction: column; gap: 10px; }
.s11-vuln { display: flex; flex-direction: column; gap: 2px; }
.s11-vl-head { font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: #B91C1C; }
.s11-vl-txt { font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark); line-height: 1.3; }

.s11-callout {
  background: rgba(24, 34, 56, 0.03); border: 1px solid var(--border-light);
  padding: 16px; border-radius: 4px;
}
.s11-co-lbl { font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate); margin-bottom: 6px; }
.s11-co-txt { font-family: 'Times New Roman', serif; font-size: 15px; font-weight: 700; color: var(--navy-dark); line-height: 1.35; }

/* COL 2 */
.s11-record { border: 1px solid var(--border-medium); border-radius: 4px; overflow: hidden; display: flex; flex-direction: column; justify-content: center; flex: 1; max-height: 250px; }
.s11-rec-head { background: var(--navy-primary); color: white; font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700; padding: 6px 10px; }
.s11-rec-grid { padding: 10px; display: flex; flex-direction: column; justify-content: center; gap: 6px; flex: 1; }
.s11-rec-grid div { display: flex; justify-content: space-between; border-bottom: 1px dotted var(--border-light); padding-bottom: 2px; }
.s11-rec-grid div:last-child { border-bottom: none; }
.s11-rg-lbl { font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate); }
.s11-rg-val { font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark); font-weight: 700; }
.s11-val-crit { color: #B91C1C !important; }

.s11-shift-flow { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.s11-sf-item { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-slate); }
.s11-sf-arr { color: var(--border-medium); font-size: 22px; font-weight: bold; line-height: 1; }
.s11-sf-mid { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: white; background: var(--orange-accent); padding: 6px 16px; border-radius: 20px; box-shadow: 0 2px 4px rgba(244, 123, 32, 0.2); }

.s11-json { background: rgba(24,34,56,0.03); border: 1px solid var(--border-light); border-radius: 4px; padding: 12px; }
.s11-json pre { font-family: 'Courier New', monospace; font-size: 13px; color: var(--navy-dark); margin: 0; line-height: 1.4; white-space: pre; }

.s11-col-stmt { font-family: 'Times New Roman', serif; font-size: 15px; font-weight: 700; color: var(--navy-dark); text-align: center; border-top: 1px solid var(--border-light); padding-top: 16px; line-height: 1.35; }

/* COL 3 */
.s11-req-table { width: 100%; border-collapse: collapse; }
.s11-req-table th { text-align: left; font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate); border-bottom: 2px solid var(--border-medium); padding-bottom: 8px; }
.s11-req-table td { padding: 6px 0; border-bottom: 1px solid var(--border-light); font-family: 'Times New Roman', serif; font-size: 13px; color: var(--navy-dark); line-height: 1.35; height: 30px; }
.s11-rt-prop { font-family: 'Courier New', monospace !important; font-size: 12.5px !important; font-weight: 700; color: var(--navy-primary) !important; width: 35%; }

.s11-recon-block { display: flex; flex-direction: column; align-items: center; background: rgba(244, 123, 32, 0.05); border: 1px solid rgba(244, 123, 32, 0.2); padding: 16px; border-radius: 4px; }
.s11-rb-node { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-primary); }
.s11-rb-arr { font-size: 22px; color: var(--orange-accent); margin: 4px 0; font-weight: 700; line-height: 1; }
.s11-rb-label { font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700; color: white; background: var(--navy-primary); padding: 6px 14px; border-radius: 4px; margin-top: 8px; letter-spacing: 1px; }

.s11-col-stmt2 { font-family: 'Times New Roman', serif; font-size: 15px; font-weight: 700; color: var(--navy-slate); line-height: 1.4; text-align: center; border-top: 1px solid var(--border-light); padding-top: 16px; }

/* 3. Bottom Application Strip */
.s11-app-strip {
  display: flex; align-items: center; justify-content: space-between;
  background: white; border: 1px solid var(--border-medium); border-left: 6px solid var(--navy-primary);
  padding: 12px 24px; border-radius: 5px; box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  height: 50px;
}
.s11-as-left { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--orange-accent); }
.s11-as-mid { font-family: 'Times New Roman', serif; font-size: 17.5px; font-weight: 700; color: var(--navy-primary); letter-spacing: 0.02em; }
.s11-as-right { font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700; color: var(--navy-slate); }

/* ==========================================================================
   SLIDE 12: FROM THEORY TO CHAINFORENSICS
   ========================================================================== */
#slide-12 { background: var(--slide-bg); }

.slide-12-title {
  position: absolute;
  left: 140px;
  top: 75px;
  font-family: var(--font-heading);
  font-size: 42px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-12-subtitle {
  position: absolute;
  left: 140px;
  top: 125px;
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  color: var(--navy-slate);
}

.s12-container {
  position: absolute;
  top: 175px;
  left: 140px;
  right: 140px;
  height: 850px;
  display: flex;
  flex-direction: column;
}

/* TOP AREA: Convergence Diagram */
.s12-top-area {
  display: flex;
  gap: 40px;
  height: 590px;
  margin-bottom: 30px;
}

.s12-left-streams {
  flex: 1.1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  gap: 15px;
}
.s12-left-streams::before {
  content: "";
  position: absolute;
  right: -20px;
  top: 12%;
  bottom: 12%;
  width: 1px;
  background: var(--border-medium);
}

.s12-stream {
  background: white;
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--navy-primary);
  border-radius: 4px;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 2px 6px rgba(12, 30, 54, 0.02);
  position: relative;
  z-index: 2;
  flex: 1;
}
.s12-stream::after {
  content: "";
  position: absolute;
  right: -20px;
  top: 50%;
  width: 20px;
  height: 1px;
  background: var(--border-medium);
}

.s12-st-head-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}
.s12-st-title {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s12-st-role {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--orange-accent);
  background: rgba(244, 123, 32, 0.08);
  padding: 2px 6px;
  border-radius: 2px;
}
.s12-st-req {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--navy-slate);
  margin-bottom: 4px;
  letter-spacing: 1px;
}
.s12-st-contrib {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-dark);
  margin-bottom: 6px;
  line-height: 1.2;
}
.s12-st-bot-row {
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 1px dashed var(--border-light);
  padding-top: 6px;
}
.s12-st-chain {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--navy-slate);
}
.s12-st-out {
  font-family: 'Times New Roman', serif;
  font-size: 11px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-left: auto;
}

/* RIGHT: Central Convergence Object */
.s12-right-center {
  flex: 1.3;
  background: white;
  border: 1px solid var(--navy-primary);
  border-left: 6px solid var(--orange-accent);
  border-radius: 4px;
  padding: 30px;
  box-shadow: 0 6px 15px rgba(12, 30, 54, 0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  z-index: 2;
}
.s12-right-center::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 50%;
  width: 20px;
  height: 1px;
  background: var(--border-medium);
}

.s12-cb-title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: var(--navy-primary);
  text-align: center;
  letter-spacing: 1px;
}
.s12-cb-subtitle {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--navy-slate);
  text-align: center;
  margin-bottom: 15px;
  letter-spacing: 1px;
}
.s12-cb-flow {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-accent);
  text-align: center;
  margin-bottom: 15px;
  background: rgba(244, 123, 32, 0.05);
  padding: 6px;
  border-radius: 4px;
}
.s12-cb-stmt {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-dark);
  text-align: center;
  line-height: 1.3;
  margin-bottom: 20px;
}

/* Pipeline */
.s12-pipeline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 25px 15px;
  background: var(--slide-bg);
  border: 1px solid var(--border-light);
  border-radius: 4px;
}
.s12-pl-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100px;
}
.s12-pl-num {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 4px;
}
.s12-pl-desc {
  font-family: 'Times New Roman', serif;
  font-size: 13px;
  color: var(--navy-slate);
  line-height: 1.2;
}
.s12-pl-arr {
  font-size: 16px;
  color: var(--border-medium);
}
.s12-pl-verify {
  border: 2px solid var(--orange-accent);
  background: white;
  padding: 6px 4px;
  border-radius: 4px;
  transform: scale(1.05);
  box-shadow: 0 2px 8px rgba(244, 123, 32, 0.15);
}
.s12-pl-verify .s12-pl-num {
  color: var(--orange-accent);
}
.s12-pl-verify .s12-pl-desc {
  color: var(--navy-dark);
  font-weight: 700;
}

/* Distinction */
.s12-distinction {
  border-top: 1px solid var(--border-light);
  padding-top: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.s12-dist-row {
  display: flex;
  flex-direction: column;
}
.s12-dist-lbl {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--navy-slate);
  margin-bottom: 2px;
}
.s12-dist-txt {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-dark);
}

/* BOTTOM AREA: Matrix + Focus */
.s12-bottom-area {
  display: flex;
  gap: 40px;
  height: 190px;
  margin-top: auto;
  align-items: stretch;
}
.s12-matrix-wrap {
  flex: 1.4;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 10px 15px;
  box-shadow: 0 2px 6px rgba(12, 30, 54, 0.02);
}
.s12-matrix {
  width: 100%;
  border-collapse: collapse;
}
.s12-matrix th {
  text-align: left;
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--navy-slate);
  border-bottom: 2px solid var(--navy-primary);
  padding-bottom: 8px;
}
.s12-matrix td {
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
  font-family: 'Times New Roman', serif;
  font-size: 13px;
  color: var(--navy-dark);
  vertical-align: middle;
}
.s12-matrix tr:last-child td {
  border-bottom: none;
}
.s12-td-domain {
  font-family: 'Courier New', monospace !important;
  font-weight: 700;
  color: var(--navy-primary) !important;
  width: 25%;
}

.s12-focus-wrap {
  flex: 1;
  background: rgba(244, 123, 32, 0.05);
  border-left: 4px solid var(--orange-accent);
  border-top: 1px solid rgba(244, 123, 32, 0.2);
  border-right: 1px solid rgba(244, 123, 32, 0.2);
  border-bottom: 1px solid rgba(244, 123, 32, 0.2);
  border-radius: 4px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.s12-fw-head {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--orange-accent);
  margin-bottom: 8px;
}
.s12-fw-stmt {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-dark);
  line-height: 1.2;
  margin-bottom: 10px;
}
.s12-fw-sub {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-slate);
  line-height: 1.3;
}

/* TRANSITION */
.s12-transition {
  margin-top: auto;
  background: var(--navy-primary);
  color: white;
  text-align: center;
  padding: 12px 20px;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(12, 30, 54, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
}
.s12-tr-top {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-slate);
  letter-spacing: 1px;
}
.s12-tr-arr {
  font-size: 16px;
  color: var(--orange-accent);
}
.s12-tr-bot {
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--orange-accent);
}

/* ==========================================================================
   SLIDE 13: CHAINFORENSICS SYSTEM ARCHITECTURE (V2)
   ========================================================================== */
#slide-13 { background: var(--slide-bg); }

.slide-13-title {
  position: absolute;
  left: 60px;
  top: 40px;
  font-family: var(--font-heading);
  font-size: 46px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-13-subtitle {
  position: absolute;
  left: 60px;
  top: 95px;
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  color: var(--navy-slate);
}

.s13-core-stmt {
  position: absolute;
  left: 60px;
  top: 130px;
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-dark);
}

.s13-container {
  position: absolute;
  top: 165px;
  left: 60px;
  right: 60px;
  height: 855px;
  display: flex;
  flex-direction: column;
}

/* Top Flow Process */
.s13-flow-process {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  background: white;
  border: 1px solid var(--border-light);
  padding: 12px 20px;
  border-radius: 4px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s13-fp-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.s13-fp-top {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: white;
  background: var(--navy-primary);
  padding: 6px 16px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}
.s13-fp-bot {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-slate);
  font-style: italic;
}
.s13-fp-arr {
  font-size: 20px;
  color: var(--orange-accent);
  font-weight: 700;
}

/* Arch Area */
.s13-arch-area {
  flex: 1;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 20px 30px;
  box-shadow: 0 4px 12px rgba(12,30,54,0.04);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.s13-grid {
  display: grid;
  grid-template-columns: 1fr 30px 1fr 30px 1fr;
  grid-template-rows: auto 1fr auto auto auto 1fr;
  align-items: stretch;
  gap: 0;
  flex: 1;
}

/* Plane Labels */
.s13-plane-lbl {
  grid-column: 1 / -1;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 1px;
}
.s13-plane-data { grid-row: 1; margin-bottom: 10px; }
.s13-plane-trust { grid-row: 5; margin-bottom: 10px; margin-top: 5px; }

/* Grid placements */
.s13-st1 { grid-column: 1; grid-row: 2; }
.s13-arr-12 { grid-column: 2; grid-row: 2; }
.s13-st2 { grid-column: 3; grid-row: 2; }
.s13-arr-23 { grid-column: 4; grid-row: 2; }
.s13-st3 { grid-column: 5; grid-row: 2; }

.s13-arr-24 { grid-column: 3; grid-row: 3; }
.s13-arr-35 { grid-column: 5; grid-row: 3; }

.s13-separator { grid-column: 1 / -1; grid-row: 4; display: flex; align-items: center; gap: 15px; margin: 10px 0; }

.s13-st4 { grid-column: 3; grid-row: 6; }
.s13-arr-45 { grid-column: 4; grid-row: 6; }
.s13-st5 { grid-column: 5; grid-row: 6; }

/* Arrows */
.s13-arr-h { display: flex; align-items: center; justify-content: center; color: var(--orange-accent); font-size: 24px; font-weight: 700; }
.s13-arr-v { display: flex; align-items: center; justify-content: center; color: var(--orange-accent); font-size: 24px; font-weight: 700; padding: 10px 0; }

/* Separator */
.s13-sep-line { flex: 1; border-bottom: 2px dashed var(--border-medium); }
.s13-sep-txt { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--orange-accent); letter-spacing: 1px; }

/* Stage Blocks */
.s13-stage {
  background: var(--slide-bg);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s13-st-num { font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--orange-accent); border-bottom: 2px solid var(--border-light); padding-bottom: 4px; margin-bottom: 6px; }
.s13-st-title { font-family: var(--font-heading); font-size: 20px; font-weight: 700; color: var(--navy-primary); margin-bottom: 4px; }
.s13-st-role { font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-dark); line-height: 1.2; margin-bottom: 8px; }
.s13-st-comps { font-family: 'Courier New', monospace; font-size: 13px; color: var(--navy-slate); background: white; border: 1px solid var(--border-light); padding: 6px; border-radius: 4px; line-height: 1.3; margin-bottom: 8px; }
.s13-st-out { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: white; background: var(--navy-primary); padding: 6px 10px; border-radius: 4px; text-align: center; margin-top: auto; }
.s13-st-sub { font-family: 'Courier New', monospace; font-size: 11px; font-weight: 700; color: var(--navy-slate); text-align: center; margin-top: 4px; }

/* Verification Block */
.s13-vc-comp { background: white; border: 1px solid var(--border-light); padding: 8px; border-radius: 4px; text-align: center; display: flex; flex-direction: column; margin-top: auto; }
.s13-vc-top { font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate); line-height: 1.2; margin-bottom: 6px; }
.s13-vc-hashes { display: flex; justify-content: center; align-items: center; gap: 8px; background: rgba(24,34,56,0.04); padding: 4px; border-radius: 2px; }
.s13-vch-local, .s13-vch-anchor { font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700; color: var(--navy-primary); }
.s13-vch-vs { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--orange-accent); }
.s13-vc-results { display: flex; justify-content: space-between; gap: 6px; margin-top: 8px; }
.s13-vcr { flex: 1; text-align: center; font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; padding: 4px; border-radius: 2px; }
.s13-vcr-intact { background: rgba(56,142,60,0.1); color: #388e3c; border: 1px solid #388e3c; }
.s13-vcr-anomaly { background: rgba(255,160,0,0.1); color: #b45309; border: 1px solid #b45309; }
.s13-vcr-tampered { background: rgba(211,47,47,0.1); color: #d32f2f; border: 1px solid #d32f2f; }

/* Bottom Area */
.s13-bottom-area { display: flex; gap: 20px; margin-top: 20px; align-items: stretch; height: 160px; }
.s13-trace-table { flex: 1.2; background: white; border-collapse: collapse; border: 1px solid var(--border-light); box-shadow: 0 2px 6px rgba(12,30,54,0.03); border-radius: 4px; overflow: hidden; }
.s13-trace-table th { font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate); background: rgba(24,34,56,0.03); padding: 6px 12px; text-align: left; border-bottom: 1px solid var(--border-light); }
.s13-trace-table td { font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-dark); padding: 6px 12px; border-bottom: 1px solid var(--border-light); }
.s13-trace-table code { font-family: 'Courier New', monospace; font-size: 14px; color: var(--navy-primary); background: none; font-weight: 700; }
.s13-trace-table tr:last-child td { border-bottom: none; }

.s13-concept-callout { flex: 0.8; background: white; border: 1px solid var(--border-light); border-left: 4px solid var(--orange-accent); padding: 20px; border-radius: 4px; display: flex; flex-direction: column; justify-content: center; box-shadow: 0 2px 6px rgba(12,30,54,0.03); }
.s13-cc-head { font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-primary); margin-bottom: 8px; }
.s13-cc-body { font-family: 'Times New Roman', serif; font-size: 17px; color: var(--navy-dark); line-height: 1.3; }

/* ==========================================================================
   SLIDE 14: IoT EDGE IMPLEMENTATION (RECOMPOSED)
   ========================================================================== */
#slide-14 { background: var(--slide-bg); overflow: hidden; }

/* Header — strictly non-overlapping */
.s14-eyebrow {
  position: absolute;
  top: 28px;
  left: 60px;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.04em;
}
.s14-title {
  position: absolute;
  top: 52px;
  left: 60px;
  right: 60px;
  font-family: var(--font-heading);
  font-size: 46px;
  font-weight: 700;
  color: var(--navy-primary);
  line-height: 1.05;
  margin: 0;
}
.s14-subtitle {
  position: absolute;
  top: 108px;
  left: 60px;
  right: 60px;
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  color: var(--navy-slate);
}

/* Three-column body: 138px top → 900px bottom */
.s14-body {
  position: absolute;
  top: 140px;
  left: 60px;
  right: 60px;
  bottom: 105px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  align-items: stretch;
}

/* Column surface */
.s14-col {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(12,30,54,0.03);
}

/* Column header */
.s14-col-head {
  border-bottom: 2px solid var(--border-light);
  padding-bottom: 8px;
  margin-bottom: 12px;
  flex-shrink: 0;
}
.s14-chn {
  display: block;
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 2px;
}
.s14-chn-org { color: var(--orange-accent); }
.s14-chs {
  display: block;
  font-family: 'Times New Roman', serif;
  font-size: 13px;
  color: var(--navy-slate);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Col 01 sensor table */
.s14-sensor-tbl {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 12px;
  flex-shrink: 0;
}
.s14-sensor-tbl th {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  text-align: left;
  border-bottom: 1px solid var(--border-medium);
  padding: 4px 3px;
}
.s14-sensor-tbl td {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-dark);
  border-bottom: 1px solid var(--border-light);
  padding: 7px 3px;
  line-height: 1.2;
}
.s14-sensor-tbl code {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  color: var(--navy-primary);
  background: rgba(24,34,56,0.04);
  padding: 1px 4px;
  border-radius: 2px;
}

/* Tamper flow */
.s14-tamper-wrap {
  background: var(--slide-bg);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 10px;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-shrink: 0;
}
.s14-tamper-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.s14-tf-step {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--navy-primary);
  background: white;
  border: 1px solid var(--border-medium);
  padding: 3px 8px;
  border-radius: 2px;
  white-space: nowrap;
}
.s14-tf-red {
  color: white;
  background: #d32f2f;
  border-color: #d32f2f;
}
.s14-tf-arr {
  font-size: 12px;
  color: var(--navy-slate);
}

/* Col note */
.s14-col-note {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-dark);
  line-height: 1.3;
  margin-top: 8px;
  flex: 1;
}

/* Col 02 platform badge */
.s14-platform-badge {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  font-weight: 700;
  color: white;
  background: var(--navy-primary);
  text-align: center;
  padding: 6px;
  border-radius: 3px;
  margin-bottom: 10px;
  flex-shrink: 0;
}

/* FreeRTOS flow */
.s14-rtos-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  margin-bottom: 8px;
  flex-shrink: 0;
}
.s14-rf-step {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-primary);
  background: var(--slide-bg);
  border: 1px solid var(--border-medium);
  padding: 4px 14px;
  border-radius: 2px;
  width: 100%;
  text-align: center;
}
.s14-rf-org {
  color: white;
  background: var(--orange-accent);
  border-color: var(--orange-accent);
}
.s14-rf-arr {
  font-size: 14px;
  color: var(--navy-slate);
}

/* Security rules section */
.s14-rules-sect {
  border-top: 1px solid var(--border-light);
  padding-top: 8px;
  margin-top: 8px;
  flex-shrink: 0;
}
.s14-rs-title {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}
.s14-rule-tbl {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 4px;
}
.s14-rule-tbl th {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--navy-slate);
  text-align: left;
  padding: 2px 2px 4px;
  border-bottom: 1px solid var(--border-medium);
}
.s14-rule-tbl td {
  padding: 4px 2px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-light);
}
.s14-rule-tbl code {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-primary);
  background: rgba(24,34,56,0.04);
  padding: 1px 3px;
  border-radius: 2px;
}
.s14-rs-note {
  font-family: 'Times New Roman', serif;
  font-size: 13px;
  color: var(--navy-slate);
  font-style: italic;
}

/* Sequence row */
.s14-seq-row {
  border-top: 1px solid var(--border-light);
  padding-top: 8px;
  margin-top: 8px;
  flex-shrink: 0;
}
.s14-seq-chain {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  color: var(--navy-slate);
  margin-bottom: 4px;
}
.s14-seq-chain strong { color: var(--orange-accent); }
.s14-seq-sub {
  font-family: 'Times New Roman', serif;
  font-size: 13.5px;
  color: var(--navy-dark);
}

/* Col 03 event artifact */
.s14-event-artifact {
  border: 1px solid var(--border-light);
  border-top: 3px solid var(--orange-accent);
  border-radius: 4px;
  background: var(--slide-bg);
  padding: 12px;
  margin-bottom: 12px;
  flex-shrink: 0;
}
.s14-ea-id {
  font-family: 'Courier New', monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--orange-accent);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border-light);
  text-align: center;
}
.s14-ea-fields {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.s14-ea-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--border-light);
  padding: 3px 0;
}
.s14-ea-key {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  min-width: 80px;
}
.s14-ea-val {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s14-ea-crit { color: #d32f2f; }

/* JSON section */
.s14-json-sect {
  background: #1a1f2e;
  border-radius: 4px;
  padding: 10px 12px;
  flex-shrink: 0;
}
.s14-js-title {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  margin-bottom: 6px;
  letter-spacing: 0.06em;
}
.s14-js-body {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  color: #e2e8f0;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.45;
}

/* MQTT Transport Rail */
.s14-mqtt-rail {
  position: absolute;
  left: 60px;
  right: 60px;
  bottom: 40px;
  height: 57px;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0 20px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.03);
}
.s14-mr-label {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.06em;
  position: absolute;
  top: 6px;
  left: 20px;
}
.s14-mr-nodes {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}
.s14-mr-node {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: white;
  background: var(--navy-primary);
  padding: 5px 14px;
  border-radius: 3px;
  white-space: nowrap;
}
.s14-mr-node-dest { background: var(--orange-accent); }
.s14-mr-conn {
  display: flex;
  align-items: center;
  position: relative;
  width: 120px;
}
.s14-mr-line-bar {
  flex: 1;
  height: 2px;
  background: var(--orange-accent);
}
.s14-mr-line-txt {
  position: absolute;
  top: -16px;
  left: 0;
  right: 0;
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--orange-accent);
  text-align: center;
  white-space: nowrap;
}
.s14-mr-arrow {
  color: var(--orange-accent);
  font-size: 20px;
  font-weight: 700;
  margin-left: -4px;
}
.s14-mr-sub {
  font-family: 'Courier New', monospace;
  font-size: 11.5px;
  color: var(--navy-slate);
  text-align: center;
  position: absolute;
  bottom: 5px;
  left: 20px;
  right: 20px;
}

/* Slide number */
.s14-slide-num {
  position: absolute;
  right: 60px;
  bottom: 12px;
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
}

/* ==========================================================================
   SLIDE 15: EVIDENCE INGESTION & CANONICALIZATION (V3)
   ========================================================================== */
#slide-15 { background: var(--slide-bg); }

.slide-15-title {
  position: absolute;
  left: 60px;
  top: 40px;
  font-family: var(--font-heading);
  font-size: 46px;
  font-weight: 700;
  color: var(--navy-primary);
}

.slide-15-subtitle {
  position: absolute;
  left: 60px;
  top: 95px;
  font-family: 'Times New Roman', serif;
  font-size: 20px;
  color: var(--navy-slate);
}

.s15-slide-num {
  position: absolute;
  right: 60px;
  bottom: 30px;
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-slate);
}

.s15-container {
  position: absolute;
  top: 145px;
  left: 60px;
  right: 60px;
  height: 875px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

/* Pipeline Section */
.s15-pipeline-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.s15-pl-anno {
  font-family: 'Times New Roman', serif;
  font-size: 16px;
  color: var(--navy-dark);
  align-self: flex-start;
  background: white;
  padding: 8px 12px;
  border-left: 3px solid var(--orange-accent);
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s15-pl-anno strong {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-primary);
}

.s15-pipeline {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

.s15-pl-stage {
  flex: 1;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 15px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 12px rgba(12,30,54,0.04);
}

.s15-pl-arr {
  display: flex;
  align-items: center;
  font-family: 'Courier New', monospace;
  font-size: 24px;
  font-weight: 700;
  color: var(--navy-slate);
}

.s15-pls-num {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  border-bottom: 2px solid var(--border-light);
  padding-bottom: 6px;
  margin-bottom: 10px;
}
.s15-pl-canon .s15-pls-num,
.s15-pl-hash .s15-pls-num {
  color: var(--orange-accent);
  border-bottom-color: rgba(244, 123, 32, 0.3);
}

.s15-pls-main {
  font-family: 'Courier New', monospace;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 12px;
  text-align: center;
}
.s15-hl-org-bg {
  background: var(--orange-accent);
  color: white;
  padding: 6px;
  border-radius: 4px;
}

.s15-pls-tech {
  font-family: 'Courier New', monospace;
  font-size: 14.5px;
  color: var(--navy-dark);
  text-align: center;
  background: rgba(24,34,56,0.03);
  padding: 8px;
  border-radius: 4px;
  margin-bottom: 10px;
  line-height: 1.4;
}

.s15-pls-desc {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-dark);
  text-align: center;
  line-height: 1.3;
  margin-top: auto;
}

.s15-pls-split {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
  text-align: center;
}
.s15-plss-left, .s15-plss-right {
  flex: 1;
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  color: var(--navy-slate);
  background: var(--slide-bg);
  padding: 6px;
  border-radius: 2px;
}
.s15-red-txt {
  color: #d32f2f;
  font-weight: 700;
}

.s15-pls-bold {
  font-family: 'Courier New', monospace;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--navy-primary);
  text-align: center;
  margin-top: auto;
}

.s15-pls-hashval {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  color: white;
  background: var(--navy-primary);
  padding: 8px;
  border-radius: 4px;
  text-align: center;
  word-break: break-all;
  margin-bottom: 10px;
}

.s15-pls-lbl {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--orange-accent);
  text-align: center;
  margin-top: auto;
}

.s15-pls-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 10px;
}
.s15-pls-table td {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-dark);
  padding: 4px 2px;
  border-bottom: 1px solid var(--border-light);
}
.s15-pls-table td:first-child {
  color: var(--navy-slate);
}

/* Technical Focus Area */
.s15-tech-focus {
  display: flex;
  gap: 20px;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 20px;
  box-shadow: 0 4px 12px rgba(12,30,54,0.04);
}

.s15-tf-left {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.s15-tf-title {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 4px;
}
.s15-tf-subtitle {
  font-family: 'Courier New', monospace;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--orange-accent);
  margin-bottom: 8px;
}
.s15-tf-desc {
  font-family: 'Times New Roman', serif;
  font-size: 16px;
  color: var(--navy-dark);
  margin-bottom: 12px;
}
.s15-tf-ex {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.s15-tfe-box {
  background: var(--slide-bg);
  border: 1px dashed var(--border-medium);
  padding: 10px;
  border-radius: 4px;
}
.s15-tfe-box-hl {
  border: 1px solid var(--orange-accent);
  background: rgba(244, 123, 32, 0.05);
}
.s15-tfe-lbl {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--navy-slate);
  margin-bottom: 4px;
}
.s15-tfe-box-hl .s15-tfe-lbl {
  color: var(--orange-accent);
}
.s15-tfe-box pre {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-dark);
  margin: 0;
  white-space: pre-wrap;
  word-break: break-all;
}
.s15-tfe-arr {
  text-align: center;
  color: var(--navy-slate);
  font-family: 'Courier New', monospace;
  font-size: 16px;
}

.s15-tf-center {
  width: 250px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(24,34,56,0.03);
  border-radius: 4px;
  padding: 15px;
}
.s15-tfc-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.s15-tfcf-item {
  font-family: 'Courier New', monospace;
  font-size: 14.5px;
  color: var(--navy-primary);
  text-align: center;
}
.s15-tfcf-org {
  color: var(--orange-accent);
  font-weight: 700;
}
.s15-tfcf-bold {
  font-weight: 700;
  font-size: 16px;
}
.s15-tfcf-arr {
  color: var(--navy-slate);
  font-size: 16px;
  margin: 4px 0;
}

.s15-tf-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.s15-tfr-box {
  background: var(--slide-bg);
  border: 1px solid var(--border-light);
  padding: 12px;
  border-radius: 4px;
}
.s15-tfr-title {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 6px;
}
.s15-tfr-desc {
  font-family: 'Times New Roman', serif;
  font-size: 15.5px;
  color: var(--navy-dark);
  line-height: 1.3;
  margin-bottom: 8px;
}
.s15-tfr-tech {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  color: var(--navy-slate);
  text-align: right;
}
.s15-tfr-hashdef {
  border-left: 3px solid var(--navy-primary);
}
.s15-tfr-hd-row {
  display: flex;
  flex-direction: column;
  margin-bottom: 8px;
}
.s15-tfr-hd-row strong {
  font-family: 'Courier New', monospace;
  font-size: 14.5px;
  color: var(--navy-primary);
}
.s15-tfr-hd-row span {
  font-family: 'Times New Roman', serif;
  font-size: 15.5px;
  color: var(--navy-dark);
}
.s15-tfr-hd-note {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--orange-accent);
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-light);
}

/* Storage Split */
.s15-storage-split {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 5px;
}
.s15-sst-lbl {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s15-sst-arr {
  color: var(--navy-slate);
  font-size: 16px;
  line-height: 1.2;
}
.s15-sst-line {
  width: 400px;
  height: 2px;
  background: var(--navy-slate);
}
.s15-ss-cols {
  display: flex;
  width: 400px;
  justify-content: space-between;
}
.s15-ssc {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 180px;
}
.s15-ssc-arr {
  font-size: 20px;
  color: var(--navy-slate);
  margin-bottom: 10px;
}
.s15-ssc-arr-sm {
  font-size: 16px;
  color: var(--navy-slate);
  margin-top: 10px;
  margin-bottom: 10px;
}
.s15-ssc-title {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-slate);
  margin-bottom: 4px;
}
.s15-ssc-main {
  font-family: 'Courier New', monospace;
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s15-ssc-org {
  color: var(--orange-accent);
}
.s15-ssc-tech {
  font-family: 'Times New Roman', serif;
  font-size: 18px;
  color: var(--navy-dark);
  margin-bottom: 10px;
}
.s15-ssc-tag {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: white;
  background: var(--navy-primary);
  padding: 4px 12px;
  border-radius: 2px;
}

/* Bottom Bar */
.s15-bottom-bar {
  background: white;
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--orange-accent);
  border-radius: 4px;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  box-shadow: 0 4px 12px rgba(12,30,54,0.04);
  margin-top: auto;
}
.s15-bb-left {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.s15-bb-title {
  font-family: 'Courier New', monospace;
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s15-bb-desc {
  font-family: 'Times New Roman', serif;
  font-size: 17px;
  color: var(--navy-dark);
}
.s15-bb-right {
  font-family: 'Courier New', monospace;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--orange-accent);
  text-align: right;
  flex-shrink: 0;
}

/* ==========================================================================
   SLIDE 16: EVIDENCE INGESTION & CRYPTOGRAPHIC FINGERPRINTING
   ========================================================================== */
#slide-16 { background: var(--slide-bg); }

/* Header */
.s16-eyebrow {
  position: absolute;
  top: 30px;
  left: 60px;
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.04em;
}
.s16-title {
  position: absolute;
  top: 52px;
  left: 60px;
  right: 60px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
  line-height: 1.1;
}
.s16-subtitle {
  position: absolute;
  top: 106px;
  left: 60px;
  right: 60px;
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  color: var(--navy-slate);
}

/* Body layout */
.s16-body {
  position: absolute;
  top: 148px;
  left: 60px;
  right: 60px;
  bottom: 68px;
  display: flex;
  gap: 20px;
}

/* LEFT column: pipeline */
.s16-left {
  flex: 0 0 480px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.s16-pipeline-label {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.05em;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 6px 12px;
  text-align: center;
  flex-shrink: 0;
}

.s16-pipeline {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow: hidden;
}

.s16-stage {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(12,30,54,0.03);
  flex-shrink: 0;
}
.s16-stage-03 {
  border-color: var(--orange-border);
  box-shadow: 0 2px 12px rgba(244,123,32,0.08);
}

.s16-stage-num {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--navy-slate);
  background: rgba(24,34,56,0.03);
  padding: 5px 12px;
  border-bottom: 1px solid var(--border-light);
  letter-spacing: 0.04em;
}
.s16-stage-num-org {
  color: var(--orange-accent);
  background: rgba(244,123,32,0.06);
  border-bottom-color: rgba(244,123,32,0.2);
}

.s16-stage-body {
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.s16-stage-note {
  font-family: 'Times New Roman', serif;
  font-size: 13.5px;
  color: var(--navy-slate);
  font-style: italic;
  margin-top: 2px;
}

/* Stage 01 event table */
.s16-evt-table {
  width: 100%;
  border-collapse: collapse;
}
.s16-et-key {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  color: var(--navy-slate);
  padding: 2px 6px 2px 0;
  width: 60px;
}
.s16-et-val {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  color: var(--navy-primary);
  font-weight: 700;
  padding: 2px 0;
}

/* Stage 02 canonical */
.s16-canon-formula {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s16-canon-block {
  font-family: 'Courier New', monospace;
  font-size: 11.5px;
  color: var(--navy-dark);
  background: rgba(24,34,56,0.04);
  padding: 6px 8px;
  border-radius: 2px;
  word-break: break-all;
  line-height: 1.4;
}
.s16-canon-bytes {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-slate);
  text-align: right;
}

/* Stage 03 hash */
.s16-hash-formula {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--orange-accent);
  text-align: center;
  padding: 4px;
  background: rgba(244,123,32,0.06);
  border-radius: 3px;
}
.s16-hash-meta {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-slate);
  text-align: center;
}
.s16-hash-val {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-primary);
  background: var(--orange-soft);
  border: 1px solid var(--orange-border);
  padding: 5px 8px;
  border-radius: 3px;
  word-break: break-all;
  text-align: center;
}
.s16-hash-lbl {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--orange-accent);
  text-align: center;
  letter-spacing: 0.06em;
}

/* Stage 04 artifact */
.s16-artifact-box {
  border: 2px solid var(--navy-primary);
  border-radius: 3px;
  overflow: hidden;
}
.s16-art-head {
  background: var(--navy-primary);
  color: white;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  padding: 5px 10px;
  letter-spacing: 0.06em;
}
.s16-art-table {
  width: 100%;
  border-collapse: collapse;
}
.s16-art-key {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  padding: 3px 8px;
  width: 60px;
  border-bottom: 1px solid var(--border-light);
}
.s16-art-val {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-primary);
  font-weight: 700;
  padding: 3px 8px;
  border-bottom: 1px solid var(--border-light);
}
.s16-art-hash { color: var(--orange-accent); }
.s16-art-ready { color: var(--status-intact); }

/* Pipeline arrows */
.s16-pipe-arr {
  font-family: 'Courier New', monospace;
  font-size: 18px;
  color: var(--navy-slate);
  text-align: center;
  line-height: 1.6;
  flex-shrink: 0;
}
.s16-pipe-arr-org { color: var(--orange-accent); }

/* RIGHT column */
.s16-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.s16-panel {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 13px 16px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.03);
  flex-shrink: 0;
}

.s16-panel-title {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-primary);
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 6px;
  margin-bottom: 10px;
}

/* Demo panel */
.s16-demo-cols {
  display: flex;
  gap: 10px;
  align-items: stretch;
  margin-bottom: 8px;
}
.s16-demo-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: rgba(24,34,56,0.02);
  border: 1px solid var(--border-light);
  border-radius: 3px;
  padding: 8px 10px;
}
.s16-demo-col-changed {
  background: rgba(211,47,47,0.02);
  border-color: rgba(211,47,47,0.15);
}
.s16-demo-lbl {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.06em;
}
.s16-demo-lbl-red { color: #d32f2f; }
.s16-demo-field {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-primary);
  font-weight: 700;
}
.s16-demo-arr {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
}
.s16-demo-hash {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  color: var(--navy-primary);
  word-break: break-all;
}
.s16-demo-hash-red { color: #d32f2f; }
.s16-demo-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  flex-shrink: 0;
}
.s16-demo-div-lbl {
  font-family: 'Courier New', monospace;
  font-size: 22px;
  font-weight: 700;
  color: #d32f2f;
}
.s16-demo-note {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-dark);
  font-style: italic;
}

/* Distinction panel */
.s16-distinction-body {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-dark);
  margin-bottom: 8px;
  line-height: 1.35;
}
.s16-preserve-table {
  width: 100%;
  border-collapse: collapse;
}
.s16-preserve-table th {
  font-family: 'Courier New', monospace;
  font-size: 11.5px;
  color: var(--navy-slate);
  text-align: left;
  padding: 3px 4px;
  border-bottom: 1px solid var(--border-medium);
}
.s16-preserve-table td {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-dark);
  padding: 4px 4px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}
.s16-preserve-table code {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  background: rgba(24,34,56,0.04);
  padding: 2px 4px;
  border-radius: 2px;
  color: var(--navy-primary);
}

/* Identity panel */
.s16-panel-identity { border-left: 3px solid var(--navy-primary); }
.s16-ident-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 5px;
}
.s16-id-key {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-primary);
  white-space: nowrap;
  min-width: 145px;
}
.s16-id-sep {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-slate);
}
.s16-id-val {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-dark);
}
.s16-ident-note {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-slate);
  font-style: italic;
  margin-top: 4px;
  padding-top: 6px;
  border-top: 1px dashed var(--border-light);
}

/* Handoff panel */
.s16-handoff {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}
.s16-hf-top {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s16-hf-arr {
  font-family: 'Courier New', monospace;
  font-size: 18px;
  color: var(--navy-slate);
}
.s16-hf-cols {
  display: flex;
  gap: 10px;
  width: 100%;
  align-items: stretch;
}
.s16-hf-col {
  flex: 1;
  text-align: center;
  background: rgba(24,34,56,0.02);
  border: 1px solid var(--border-light);
  border-radius: 3px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.s16-hf-col-org {
  background: rgba(244,123,32,0.04);
  border-color: var(--orange-border);
}
.s16-hf-action {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s16-hf-col-org .s16-hf-action { color: var(--orange-accent); }
.s16-hf-sub {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  color: var(--navy-dark);
}
.s16-hf-layer {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--navy-slate);
}
.s16-hf-mid-bar {
  width: 2px;
  background: var(--border-medium);
  border-radius: 1px;
  flex-shrink: 0;
  align-self: stretch;
}

/* Faculty panel */
.s16-panel-fac { border-left: 3px solid var(--orange-accent); }
.s16-fac-lbl {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.s16-fac-q {
  font-family: 'Courier New', monospace;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 5px;
}
.s16-fac-a {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-dark);
  line-height: 1.35;
  margin-bottom: 6px;
}
.s16-fac-runtime {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  border-top: 1px dashed var(--border-light);
  padding-top: 5px;
}
.s16-fac-runtime span { font-style: italic; }

/* Bottom bar */
.s16-bottom-bar {
  position: absolute;
  bottom: 0;
  left: 60px;
  right: 60px;
  height: 55px;
  background: var(--navy-primary);
  border-radius: 4px 4px 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  gap: 20px;
}
.s16-bb-left {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.s16-bb-right {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  text-align: right;
  flex-shrink: 0;
}


/* ==========================================================================
   SLIDE 17: EVIDENCE PRESERVATION & PROVENANCE
   ========================================================================== */
#slide-17 { background: var(--slide-bg); }

/* Header */
.s17-eyebrow {
  position: absolute;
  top: 30px;
  left: 60px;
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.04em;
}
.s17-title {
  position: absolute;
  top: 52px;
  left: 60px;
  right: 60px;
  font-family: var(--font-heading);
  font-size: 44px;
  font-weight: 700;
  color: var(--navy-primary);
  line-height: 1.1;
}
.s17-subtitle {
  position: absolute;
  top: 106px;
  left: 60px;
  right: 60px;
  font-family: 'Times New Roman', serif;
  font-size: 19px;
  color: var(--navy-slate);
}

/* Provenance Stage Rail */
.s17-rail {
  position: absolute;
  top: 148px;
  left: 60px;
  right: 60px;
  height: 58px;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.03);
  padding: 0 20px;
}
.s17-rail-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 4px 12px;
  border-radius: 3px;
  border: 1px solid var(--border-light);
  background: var(--slide-bg);
}
.s17-rs-active {
  background: var(--orange-accent);
  border-color: var(--orange-accent);
}
.s17-rs-num {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--navy-slate);
  line-height: 1;
}
.s17-rs-active .s17-rs-num { color: rgba(255,255,255,0.8); }
.s17-rs-label {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-primary);
  line-height: 1.2;
}
.s17-rs-active .s17-rs-label { color: white; font-size: 14px; }
.s17-rs-sub {
  font-family: 'Times New Roman', serif;
  font-size: 12px;
  color: var(--navy-slate);
  line-height: 1;
}
.s17-rs-active .s17-rs-sub { color: rgba(255,255,255,0.85); }
.s17-rail-arr {
  font-family: 'Courier New', monospace;
  font-size: 18px;
  color: var(--navy-slate);
  flex-shrink: 0;
}

/* Body */
.s17-body {
  position: absolute;
  top: 220px;
  left: 60px;
  right: 60px;
  bottom: 65px;
  display: flex;
  gap: 20px;
}

/* LEFT: Architecture Column */
.s17-arch-col {
  flex: 0 0 520px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

/* Top entry */
.s17-arch-top {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.s17-at-box {
  width: 100%;
  background: white;
  border: 1px solid var(--border-light);
  border-top: 3px solid var(--navy-primary);
  border-radius: 4px;
  padding: 10px 16px;
  text-align: center;
  box-shadow: 0 2px 6px rgba(12,30,54,0.04);
}
.s17-at-label {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--orange-accent);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}
.s17-at-title {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s17-at-sub {
  font-family: 'Times New Roman', serif;
  font-size: 14px;
  color: var(--navy-slate);
  margin-top: 2px;
}
.s17-at-arr {
  font-family: 'Courier New', monospace;
  font-size: 20px;
  color: var(--navy-slate);
  line-height: 1.4;
}

/* Fork connectors */
.s17-fork {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}
.s17-fork-line {
  width: 2px;
  height: 8px;
  background: var(--border-medium);
}
.s17-fork-arms {
  width: 78%;
  height: 10px;
  position: relative;
  border-top: 2px solid var(--border-medium);
  border-left: 2px solid var(--border-medium);
  border-right: 2px solid var(--border-medium);
  border-radius: 4px 4px 0 0;
}
.s17-fork-arm-left, .s17-fork-arm-right {
  position: absolute;
  bottom: -12px;
  width: 2px;
  height: 12px;
  background: var(--border-medium);
}
.s17-fork-arm-left { left: -2px; }
.s17-fork-arm-right { right: -2px; }

/* Storage Engines */
.s17-engines {
  width: 100%;
  display: flex;
  gap: 12px;
  flex: 1;
  min-height: 0;
  margin-top: 2px;
}
.s17-engine {
  flex: 1;
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(12,30,54,0.03);
}
.s17-eng-head {
  background: var(--navy-primary);
  color: white;
  padding: 7px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.s17-eng-head-org {
  background: var(--orange-accent);
}
.s17-eng-num {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  font-weight: 700;
  opacity: 0.7;
}
.s17-eng-tech {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
}
.s17-eng-role {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.06em;
  padding: 5px 12px 0;
  flex-shrink: 0;
}
.s17-eng-caption {
  font-family: 'Times New Roman', serif;
  font-size: 13.5px;
  color: var(--navy-dark);
  padding: 3px 12px 6px;
  line-height: 1.3;
  flex-shrink: 0;
  border-bottom: 1px solid var(--border-light);
}

/* SQLite fields */
.s17-eng-fields {
  padding: 6px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
}
.s17-ef-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px;
  padding: 1px 0;
  border-bottom: 1px solid var(--border-light);
}
.s17-ef-key {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  white-space: nowrap;
}
.s17-ef-val {
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
  color: var(--navy-primary);
  font-weight: 700;
  text-align: right;
}
.s17-ef-hash { color: var(--orange-accent); }
.s17-ef-cid { color: var(--navy-slate); font-size: 11.5px; }

/* Capability chips */
.s17-eng-caps {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 6px 10px 8px;
  flex-shrink: 0;
}
.s17-cap {
  font-family: 'Courier New', monospace;
  font-size: 10.5px;
  font-weight: 700;
  color: var(--navy-slate);
  background: var(--slide-bg);
  border: 1px solid var(--border-medium);
  padding: 2px 6px;
  border-radius: 2px;
}

/* IPFS flow */
.s17-ipfs-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 12px;
  flex: 1;
}
.s17-if-item {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  color: var(--navy-primary);
  text-align: center;
  background: rgba(24,34,56,0.04);
  padding: 4px 12px;
  border-radius: 2px;
  width: 100%;
}
.s17-if-hl {
  background: var(--orange-accent);
  color: white;
  font-weight: 700;
}
.s17-if-arr {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  color: var(--navy-slate);
  line-height: 1;
}
.s17-if-cid {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  font-style: italic;
}
.s17-ipfs-note {
  font-family: 'Times New Roman', serif;
  font-size: 12.5px;
  color: var(--navy-dark);
  padding: 4px 10px 6px;
  line-height: 1.3;
  border-top: 1px solid var(--border-light);
  flex-shrink: 0;
}

/* Merge connectors */
.s17-merge {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.s17-merge-arms {
  width: 78%;
  height: 10px;
  position: relative;
  border-bottom: 2px solid var(--border-medium);
  border-left: 2px solid var(--border-medium);
  border-right: 2px solid var(--border-medium);
  border-radius: 0 0 4px 4px;
}
.s17-merge-arm-left, .s17-merge-arm-right {
  position: absolute;
  top: -10px;
  width: 2px;
  height: 10px;
  background: var(--border-medium);
}
.s17-merge-arm-left { left: -2px; }
.s17-merge-arm-right { right: -2px; }
.s17-merge-line {
  width: 2px;
  height: 8px;
  background: var(--border-medium);
}
.s17-merge-arr {
  font-family: 'Courier New', monospace;
  font-size: 18px;
  color: var(--navy-slate);
  line-height: 1.2;
}

/* Provenance Record Box */
.s17-prov-box {
  width: 100%;
  background: var(--navy-primary);
  border-radius: 4px;
  padding: 10px 16px;
  text-align: center;
  flex-shrink: 0;
}
.s17-pb-head {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: white;
  margin-bottom: 4px;
  letter-spacing: 0.05em;
}
.s17-pb-sub {
  font-family: 'Times New Roman', serif;
  font-size: 13.5px;
  color: rgba(255,255,255,0.75);
}

/* RIGHT column */
.s17-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.s17-panel {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 13px 16px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.03);
  flex-shrink: 0;
}
.s17-panel-title {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-primary);
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 6px;
  margin-bottom: 10px;
}

/* Evidence instance panel */
.s17-inst-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 10px;
}
.s17-ig-item {
  background: var(--slide-bg);
  border: 1px solid var(--border-light);
  border-radius: 3px;
  padding: 6px 10px;
}
.s17-ig-key {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  color: var(--navy-slate);
  font-weight: 700;
  margin-bottom: 2px;
}
.s17-ig-val {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  color: var(--navy-primary);
  font-weight: 700;
}
.s17-ig-hash { color: var(--orange-accent); }
.s17-ig-cid { color: var(--navy-slate); font-size: 12px; }
.s17-inst-status {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--status-intact);
  text-align: center;
  background: rgba(21,128,61,0.06);
  border: 1px solid rgba(21,128,61,0.2);
  border-radius: 3px;
  padding: 5px;
  letter-spacing: 0.06em;
}

/* Storage Roles comparison */
.s17-compare-cols {
  display: flex;
  gap: 10px;
  align-items: stretch;
}
.s17-cc-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.s17-cc-head {
  font-family: 'Courier New', monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy-primary);
  border-bottom: 2px solid var(--navy-primary);
  padding-bottom: 4px;
  margin-bottom: 4px;
}
.s17-cc-head-org {
  color: var(--orange-accent);
  border-bottom-color: var(--orange-accent);
}
.s17-cc-item {
  font-family: 'Times New Roman', serif;
  font-size: 14.5px;
  color: var(--navy-dark);
  line-height: 1.3;
  padding-left: 8px;
  border-left: 2px solid var(--border-light);
}
.s17-cc-divider {
  width: 1px;
  background: var(--border-medium);
  flex-shrink: 0;
  align-self: stretch;
}

/* Distinction panel */
.s17-panel-distinction { border-left: 3px solid var(--navy-primary); }
.s17-dist-title {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 6px;
}
.s17-dist-body {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-dark);
  line-height: 1.35;
  margin-bottom: 10px;
}
.s17-trust-decoup {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  margin-bottom: 8px;
}
.s17-td-plane {
  width: 100%;
  background: var(--slide-bg);
  border: 1px solid var(--border-light);
  border-radius: 3px;
  padding: 7px 12px;
  text-align: center;
}
.s17-td-plane-ext {
  background: rgba(24,34,56,0.03);
  border-color: var(--navy-primary);
}
.s17-td-label {
  font-family: 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}
.s17-td-tech {
  font-family: 'Courier New', monospace;
  font-size: 13.5px;
  color: var(--navy-primary);
  font-weight: 700;
}
.s17-td-sep {
  font-family: 'Courier New', monospace;
  font-size: 12px;
  color: var(--navy-slate);
  font-style: italic;
}
.s17-td-caption {
  font-family: 'Times New Roman', serif;
  font-size: 13px;
  color: var(--navy-slate);
  font-style: italic;
  border-top: 1px dashed var(--border-light);
  padding-top: 6px;
}

/* Off-chain panel */
.s17-panel-offchain { border-left: 3px solid var(--orange-accent); }
.s17-oc-title {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 6px;
}
.s17-oc-body {
  font-family: 'Times New Roman', serif;
  font-size: 15px;
  color: var(--navy-dark);
  line-height: 1.4;
}

/* Bottom Bar */
.s17-bottom-bar {
  position: absolute;
  bottom: 0;
  left: 60px;
  right: 60px;
  height: 55px;
  background: var(--navy-primary);
  border-radius: 4px 4px 0 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  gap: 20px;
}
.s17-bb-left {
  font-family: 'Courier New', monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.s17-bb-right {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: rgba(255,255,255,0.75);
  text-align: right;
  flex-shrink: 0;
}


/* ==========================================================================
   SLIDE 18: BLOCKCHAIN EVIDENCE ANCHORING
   ========================================================================== */
#slide-18 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s18-eyebrow {
  position: absolute;
  top: 28px; left: 60px;
  font-family: 'Courier New', monospace;
  font-size: 14px; font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.04em;
}
.s18-title {
  position: absolute;
  top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading);
  font-size: 44px; font-weight: 700;
  color: var(--navy-primary);
  line-height: 1.05; margin: 0;
}
.s18-subtitle {
  position: absolute;
  top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif;
  font-size: 19px; color: var(--navy-slate);
}

/* Core message strip */
.s18-core-msg {
  position: absolute;
  top: 142px; left: 60px; right: 60px;
  background: white;
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--navy-primary);
  border-radius: 4px;
  padding: 7px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.s18-cm-main {
  font-family: 'Courier New', monospace;
  font-size: 14px; font-weight: 700;
  color: var(--navy-primary);
  white-space: nowrap;
}
.s18-cm-sub {
  font-family: 'Times New Roman', serif;
  font-size: 14.5px; color: var(--navy-dark);
}

/* Body: pipeline col + detail col */
.s18-body {
  position: absolute;
  top: 182px; left: 60px; right: 60px;
  bottom: 62px;
  display: flex;
  gap: 18px;
}

/* LEFT: pipeline column */
.s18-pipeline-col {
  flex: 0 0 280px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.s18-pcol-label {
  font-family: 'Courier New', monospace;
  font-size: 11px; font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

/* Stage block */
.s18-stage {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  overflow: hidden;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s18-stage-contract { border-top: 3px solid var(--orange-accent); }
.s18-stage-read { border-top: 3px solid var(--navy-primary); }

.s18-stage-head {
  background: var(--navy-primary);
  padding: 6px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.s18-sh-org { background: var(--orange-accent); }
.s18-st-num {
  font-family: 'Courier New', monospace;
  font-size: 11px; font-weight: 700;
  color: rgba(255,255,255,0.6);
}
.s18-st-label {
  font-family: 'Courier New', monospace;
  font-size: 13px; font-weight: 700;
  color: white;
}

.s18-stage-body {
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.s18-sb-id {
  font-family: 'Courier New', monospace;
  font-size: 14px; font-weight: 700;
  color: var(--orange-accent);
}
.s18-sb-arr {
  font-size: 13px; color: var(--navy-slate);
  text-align: center;
}
.s18-sb-op {
  font-family: 'Courier New', monospace;
  font-size: 12.5px; color: var(--navy-primary);
  background: rgba(24,34,56,0.04);
  padding: 2px 6px; border-radius: 2px;
}
.s18-sb-hash {
  font-family: 'Courier New', monospace;
  font-size: 13.5px; font-weight: 700;
  color: var(--orange-accent);
}
.s18-sb-tag {
  font-family: 'Courier New', monospace;
  font-size: 11px; font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.04em;
  border-top: 1px solid var(--border-light);
  padding-top: 4px; margin-top: 2px;
}
.s18-sb-note {
  font-family: 'Times New Roman', serif;
  font-size: 13px; color: var(--navy-dark);
  line-height: 1.25;
}
.s18-sb-contract {
  font-family: 'Courier New', monospace;
  font-size: 15px; font-weight: 700;
  color: var(--navy-primary);
}
.s18-sb-fn {
  font-family: 'Courier New', monospace;
  font-size: 13px; color: var(--navy-dark);
  background: rgba(24,34,56,0.04);
  padding: 3px 6px; border-radius: 2px;
}
.s18-sb-fn code {
  font-family: inherit; font-size: inherit;
  color: var(--orange-accent);
}
.s18-sb-chain {
  font-family: 'Courier New', monospace;
  font-size: 14px; font-weight: 700;
  color: var(--navy-primary);
  text-align: center;
}

/* Idempotent guard */
.s18-idempotent {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin: 2px 0;
}
.s18-idemp-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Courier New', monospace;
  font-size: 12.5px;
}
.s18-idemp-cond { color: var(--navy-slate); min-width: 100px; }
.s18-idemp-out {
  font-weight: 700; color: var(--navy-primary);
  background: rgba(24,34,56,0.06);
  padding: 2px 8px; border-radius: 2px;
}
.s18-idemp-red { color: white; background: #d32f2f; }

/* Chain flow */
.s18-chain-flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  margin: 4px 0;
}
.s18-chain-flow span {
  font-family: 'Courier New', monospace;
  font-size: 12.5px; color: var(--navy-primary);
  background: var(--slide-bg);
  border: 1px solid var(--border-medium);
  padding: 2px 10px; border-radius: 2px;
  width: 100%; text-align: center;
}
.s18-cf-arr {
  font-size: 11px;
  border: none !important; background: none !important;
  color: var(--navy-slate) !important;
  padding: 0 !important;
  width: auto !important;
}
.s18-env-badge {
  font-family: 'Courier New', monospace;
  font-size: 10.5px; font-weight: 700;
  color: white;
  background: var(--navy-slate);
  padding: 2px 8px; border-radius: 2px;
  text-align: center;
  align-self: center;
  margin-top: 3px;
}

/* Retrieval flow */
.s18-sb-flow {
  display: flex; flex-direction: column;
  align-items: center; gap: 2px;
}
.s18-sf-item {
  font-family: 'Courier New', monospace;
  font-size: 12.5px; font-weight: 700;
  color: var(--navy-primary);
  background: var(--slide-bg);
  border: 1px solid var(--border-medium);
  padding: 3px 10px; border-radius: 2px;
  width: 100%; text-align: center;
}
.s18-sf-fn code {
  font-family: 'Courier New', monospace;
  color: var(--orange-accent);
}
.s18-sf-hl {
  color: white;
  background: var(--navy-primary) !important;
  border-color: var(--navy-primary) !important;
}
.s18-sf-arr {
  font-size: 12px; color: var(--navy-slate);
}

/* Flow arrows between stages */
.s18-flow-arr {
  font-size: 18px; color: var(--orange-accent);
  text-align: center; line-height: 1.2;
  padding: 2px 0; font-weight: 700;
}

/* RIGHT: detail column */
.s18-detail-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
}

/* Generic panel */
.s18-panel {
  background: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 10px 14px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
  flex-shrink: 0;
}
.s18-panel-title {
  font-family: 'Courier New', monospace;
  font-size: 12px; font-weight: 700;
  color: var(--navy-primary);
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 5px; margin-bottom: 8px;
}
.s18-panel-distinction { border-left: 3px solid var(--orange-accent); }

/* EvidenceRecord grid */
.s18-record-grid {
  display: flex; flex-direction: column; gap: 3px;
  margin-bottom: 6px;
}
.s18-rg-row {
  display: flex; justify-content: space-between;
  align-items: baseline; gap: 8px;
  border-bottom: 1px solid var(--border-light);
  padding: 3px 0;
}
.s18-rg-row-hl { background: rgba(255,122,0,0.04); }
.s18-rg-key {
  font-family: 'Courier New', monospace;
  font-size: 12.5px; color: var(--navy-slate);
  min-width: 110px;
}
.s18-rg-val {
  font-family: 'Courier New', monospace;
  font-size: 13px; font-weight: 700;
  color: var(--navy-primary); text-align: right;
}
.s18-rg-orange { color: var(--orange-accent); }
.s18-rg-green { color: #15803d; }
.s18-rg-dim {
  font-weight: 400; font-size: 11.5px;
  color: var(--navy-slate);
}
.s18-record-struct {
  font-family: 'Courier New', monospace;
  font-size: 11.5px; color: var(--navy-slate);
  font-style: italic;
}

/* Lifecycle strip */
.s18-lifecycle {
  display: flex; align-items: center;
  gap: 6px; margin-bottom: 6px;
}
.s18-lc-step {
  flex: 1;
  background: var(--slide-bg);
  border: 1px solid var(--border-light);
  border-radius: 3px;
  padding: 6px 8px;
  text-align: center;
}
.s18-lc-step-org {
  background: rgba(255,122,0,0.06);
  border-color: var(--orange-accent);
}
.s18-lc-head {
  font-family: 'Courier New', monospace;
  font-size: 12px; font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 3px;
}
.s18-lc-fn code {
  font-family: 'Courier New', monospace;
  font-size: 12px; color: var(--orange-accent);
}
.s18-lc-desc {
  font-family: 'Times New Roman', serif;
  font-size: 13px; color: var(--navy-dark);
  margin-top: 2px;
}
.s18-lc-arr {
  font-size: 18px; color: var(--navy-slate);
  flex-shrink: 0;
}
.s18-lc-note {
  font-family: 'Times New Roman', serif;
  font-size: 13px; color: var(--navy-dark);
}
.s18-lc-note code {
  font-family: 'Courier New', monospace;
  font-size: 12.5px; color: var(--orange-accent);
}

/* Hash compare */
.s18-hash-compare {
  display: flex; align-items: center;
  gap: 10px; margin-bottom: 6px;
}
.s18-hc-col {
  flex: 1;
  background: var(--slide-bg);
  border: 1px solid var(--border-light);
  border-radius: 3px;
  padding: 7px 10px;
}
.s18-hc-head {
  font-family: 'Courier New', monospace;
  font-size: 12.5px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 3px;
}
.s18-hc-tech {
  font-family: 'Courier New', monospace;
  font-size: 12px; color: var(--orange-accent);
  margin-bottom: 2px;
}
.s18-hc-desc {
  font-family: 'Times New Roman', serif;
  font-size: 13px; color: var(--navy-dark);
}
.s18-hc-sep {
  font-size: 22px; font-weight: 700;
  color: var(--navy-primary);
  flex-shrink: 0;
}
.s18-hash-note {
  font-family: 'Times New Roman', serif;
  font-size: 13px; color: var(--navy-dark);
  line-height: 1.3;
}
.s18-hash-note code {
  font-family: 'Courier New', monospace;
  font-size: 12.5px; color: var(--orange-accent);
}

/* Storage table */
.s18-store-tbl {
  width: 100%; border-collapse: collapse;
}
.s18-store-tbl th {
  font-family: 'Courier New', monospace;
  font-size: 11px; color: var(--navy-slate);
  text-align: left;
  border-bottom: 1px solid var(--border-medium);
  padding: 3px 4px;
}
.s18-store-tbl td {
  font-family: 'Times New Roman', serif;
  font-size: 14px; color: var(--navy-dark);
  border-bottom: 1px solid var(--border-light);
  padding: 4px;
}
.s18-store-tbl code {
  font-family: 'Courier New', monospace;
  font-size: 13px; color: var(--navy-primary);
  background: rgba(24,34,56,0.05);
  padding: 1px 3px; border-radius: 2px;
}
.s18-store-tbl tr:last-child td { border-bottom: none; }

/* Analysis strip */
.s18-panel-analysis { flex-shrink: 0; }
.s18-analysis-row {
  display: flex; gap: 10px;
  align-items: flex-start;
  padding: 5px 0;
  border-bottom: 1px solid var(--border-light);
}
.s18-analysis-row:last-child { border-bottom: none; }
.s18-ar-num {
  font-family: 'Courier New', monospace;
  font-size: 14px; font-weight: 700;
  color: var(--orange-accent);
  min-width: 24px;
}
.s18-ar-head {
  font-family: 'Courier New', monospace;
  font-size: 12.5px; font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 2px;
}
.s18-ar-desc {
  font-family: 'Times New Roman', serif;
  font-size: 13.5px; color: var(--navy-dark);
  line-height: 1.25;
}

/* Academic note panel */
.s18-panel-note {
  border-left: 3px solid var(--navy-slate);
  flex-shrink: 0;
}
.s18-note-row {
  display: flex; gap: 10px;
  align-items: flex-start;
  padding: 4px 0;
  border-bottom: 1px solid var(--border-light);
}
.s18-note-row-dim { opacity: 0.75; }
.s18-note-lbl {
  font-family: 'Courier New', monospace;
  font-size: 11px; font-weight: 700;
  color: var(--navy-slate);
  min-width: 160px;
  letter-spacing: 0.03em;
}
.s18-note-body {
  font-family: 'Times New Roman', serif;
  font-size: 13.5px; color: var(--navy-dark);
  line-height: 1.25;
}
.s18-note-env {
  font-family: 'Courier New', monospace;
  font-size: 11px; color: var(--navy-slate);
  margin-top: 5px; font-style: italic;
}

/* Bottom bar */
.s18-bottom-bar {
  position: absolute;
  bottom: 0; left: 60px; right: 60px;
  height: 54px;
  background: var(--navy-primary);
  border-radius: 4px 4px 0 0;
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 0 20px; gap: 20px;
}
.s18-bb-left {
  font-family: 'Courier New', monospace;
  font-size: 14px; font-weight: 700;
  color: var(--orange-accent);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.s18-bb-right {
  font-family: 'Courier New', monospace;
  font-size: 13px; font-weight: 700;
  color: rgba(255,255,255,0.75);
  flex-shrink: 0;
}

/* Slide number */
.s18-slide-num {
  position: absolute;
  right: 60px; bottom: 16px;
  font-family: 'Courier New', monospace;
  font-size: 14px; font-weight: 700;
  color: white;
  z-index: 2;
}


/* ==========================================================================
   SLIDE 19: FORENSIC VERIFICATION
   ========================================================================== */
#slide-19 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s19-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s19-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s19-subtitle {
  position: absolute; top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Core Message */
.s19-core-msg {
  position: absolute; top: 142px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-light);
  border-left: 4px solid var(--navy-primary); border-radius: 4px;
  padding: 8px 16px; display: flex; align-items: center; gap: 16px;
}
.s19-cm-main {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); white-space: nowrap;
}
.s19-cm-sub {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark);
}

/* Body layout */
.s19-body {
  position: absolute; top: 194px; left: 60px; right: 60px; bottom: 62px;
  display: flex; flex-direction: column; gap: 16px;
}

/* Dual-Source Visual */
.s19-dual-source {
  display: flex; gap: 20px; align-items: stretch;
  height: 380px; flex-shrink: 0;
}

/* Paths (A & B) */
.s19-path {
  flex: 1; background: white; border: 1px solid var(--border-light);
  border-radius: 4px; display: flex; flex-direction: column;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03); overflow: hidden;
}
.s19-path-head {
  background: var(--navy-primary); padding: 8px 12px;
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
}
.s19-ph-org { background: var(--orange-accent); }
.s19-ph-num {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: rgba(255,255,255,0.6);
}
.s19-ph-title {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: white;
}
.s19-ph-sub {
  font-family: 'Times New Roman', serif; font-size: 14px;
  color: rgba(255,255,255,0.85); font-style: italic; margin-left: auto;
}
.s19-path-body {
  flex: 1; padding: 12px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 4px;
}
.s19-path-note {
  border-top: 1px solid var(--border-light); padding: 8px 12px;
  font-family: 'Times New Roman', serif; font-size: 13.5px;
  color: var(--navy-dark); background: var(--slide-bg);
  text-align: center;
}
.s19-pb-tech {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--navy-slate); text-align: center; line-height: 1.2;
}
.s19-pb-step {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--navy-primary); background: var(--slide-bg);
  border: 1px solid var(--border-medium); padding: 4px 14px;
  border-radius: 2px; width: 85%; text-align: center;
}
.s19-pb-fn {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: var(--orange-accent); background: rgba(24,34,56,0.04);
  padding: 4px 14px; border-radius: 2px;
}
.s19-pb-hash {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: white; background: var(--navy-primary);
  padding: 6px 16px; border-radius: 3px; margin-top: 4px;
}
.s19-pb-hash-org { background: var(--orange-accent); }
.s19-pb-arr { font-size: 16px; color: var(--navy-slate); line-height: 1; }

/* Center: Reconciliation */
.s19-recon {
  flex: 1.2; display: flex; flex-direction: column; gap: 12px;
}
.s19-recon-head {
  display: flex; align-items: baseline; gap: 8px; justify-content: center;
  border-bottom: 2px solid var(--navy-primary); padding-bottom: 6px;
}
.s19-rh-num {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: var(--orange-accent);
}
.s19-rh-title {
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700;
  color: var(--navy-primary); letter-spacing: 0.04em;
}
.s19-recon-box {
  background: white; border: 2px solid var(--navy-primary);
  border-radius: 6px; padding: 12px; display: flex; flex-direction: column;
  align-items: center; gap: 10px; box-shadow: 0 4px 12px rgba(12,30,54,0.05);
}
.s19-rb-eq {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-primary); background: rgba(24,34,56,0.05);
  padding: 8px 16px; border-radius: 4px; letter-spacing: 0.05em;
}
.s19-rb-split {
  display: flex; gap: 20px; width: 100%; justify-content: center;
}
.s19-rbs-col {
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  flex: 1; background: var(--slide-bg); padding: 8px; border-radius: 4px;
  border: 1px solid var(--border-light);
}
.s19-rbs-lbl {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--navy-slate);
}
.s19-rbs-arr { font-size: 14px; color: var(--navy-slate); }
.s19-rbs-out {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: white; padding: 4px 12px; border-radius: 3px;
}
.s19-rbs-green { background: #15803d; }
.s19-rbs-red { background: #d32f2f; }
.s19-recon-note {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-primary);
  text-align: center; border-top: 1px dashed var(--border-medium);
  padding-top: 8px; width: 100%;
}

/* Concrete Example */
.s19-example {
  background: white; border: 1px solid var(--border-light);
  border-radius: 4px; padding: 10px 14px;
  display: flex; flex-direction: column; gap: 4px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s19-ex-row { display: flex; justify-content: space-between; align-items: baseline; }
.s19-ex-lbl { font-family: 'Courier New', monospace; font-size: 12px; color: var(--navy-slate); }
.s19-ex-val { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-primary); }
.s19-ex-hash { font-family: 'Courier New', monospace; font-size: 13.5px; color: var(--orange-accent); }
.s19-ex-res {
  border-top: 1px solid var(--border-light); padding-top: 6px; margin-top: 2px;
  font-family: 'Courier New', monospace; font-size: 12.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center;
}
.s19-ex-green { color: #15803d; }

/* 7-DIMENSION EVAL SECTION */
.s19-eval-sec {
  display: flex; gap: 20px; flex: 1; min-height: 0;
}
.s19-matrix {
  flex: 1.4; display: flex; flex-direction: column;
}
.s19-matrix-head {
  margin-bottom: 6px; display: flex; align-items: baseline; gap: 10px;
}
.s19-mh-main {
  font-family: 'Courier New', monospace; font-size: 12.5px; font-weight: 700;
  color: var(--navy-primary); letter-spacing: 0.04em;
}
.s19-mh-sub {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-slate); font-style: italic;
}
.s19-matrix-tbl {
  width: 100%; border-collapse: collapse; background: white;
  border: 1px solid var(--border-light); border-radius: 4px;
}
.s19-matrix-tbl th {
  font-family: 'Courier New', monospace; font-size: 11px; font-weight: 700;
  color: var(--navy-slate); text-align: left; padding: 6px 8px;
  border-bottom: 2px solid var(--border-medium); background: var(--slide-bg);
}
.s19-matrix-tbl td {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark);
  padding: 6px 8px; border-bottom: 1px solid var(--border-light);
}
.s19-mt-num {
  font-family: 'Courier New', monospace; font-size: 12.5px; font-weight: 700;
  color: var(--orange-accent); width: 24px;
}
.s19-mt-hl { background: rgba(255,122,0,0.04); }
.s19-matrix-tbl code {
  font-family: 'Courier New', monospace; font-size: 13px; color: var(--orange-accent);
}
.s19-matrix-tbl tr:last-child td { border-bottom: none; }

/* Classification & Edge Rules */
.s19-eval-bottom {
  flex: 1; display: flex; flex-direction: column; gap: 12px;
}
.s19-eb-class {
  background: white; border: 1px solid var(--border-light); border-radius: 4px;
  padding: 10px; display: flex; flex-direction: column; gap: 8px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s19-ebc-group { display: flex; flex-direction: column; gap: 2px; text-align: center; }
.s19-ebc-title {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-primary);
}
.s19-ebc-title-org { color: var(--orange-accent); }
.s19-ebc-dims {
  font-family: 'Times New Roman', serif; font-size: 13.5px; color: var(--navy-dark);
}
.s19-ebc-vs {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--navy-slate); text-align: center;
}
.s19-ebc-note {
  border-top: 1px dashed var(--border-light); padding-top: 6px;
  font-family: 'Times New Roman', serif; font-size: 13.5px; color: var(--navy-primary);
  text-align: center; font-weight: 700;
}

.s19-eb-rules {
  display: flex; flex-direction: column; gap: 10px;
}
.s19-rule {
  background: white; border: 1px solid var(--border-light); border-radius: 4px;
  border-left: 3px solid var(--navy-slate); padding: 8px 12px;
}
.s19-rule-head {
  font-family: 'Courier New', monospace; font-size: 12.5px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 2px;
}
.s19-rule-desc {
  font-family: 'Times New Roman', serif; font-size: 13.5px; color: var(--navy-dark);
  line-height: 1.3;
}
.s19-rule-amber {
  font-family: 'Courier New', monospace; font-size: 12.5px; font-weight: 700;
  color: #b45309; /* amber-700 */ background: rgba(180,83,9,0.08);
  padding: 1px 4px; border-radius: 2px;
}

/* Bottom Bar */
.s19-bottom-bar {
  position: absolute; bottom: 0; left: 60px; right: 60px; height: 54px;
  background: var(--navy-primary); border-radius: 4px 4px 0 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; gap: 20px;
}
.s19-bb-left {
  display: flex; align-items: center; gap: 8px;
}
.s19-bbl-step {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: rgba(255,255,255,0.6);
}
.s19-bbl-hl { color: var(--orange-accent); }
.s19-bbl-arr { font-size: 12px; color: rgba(255,255,255,0.3); }
.s19-bb-right {
  font-family: 'Courier New', monospace; font-size: 12.5px; font-weight: 700;
  color: rgba(255,255,255,0.8); flex-shrink: 0;
}

/* Slide number */
.s19-slide-num {
  position: absolute; right: 60px; bottom: 16px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: white; z-index: 2;
}


/* ==========================================================================
   SLIDE 20: FORENSIC VERDICT ENGINE
   ========================================================================== */
#slide-20 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s20-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s20-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s20-subtitle {
  position: absolute; top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Core Message */
.s20-core-msg {
  position: absolute; top: 142px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-light);
  border-left: 4px solid var(--navy-primary); border-radius: 4px;
  padding: 8px 16px; display: flex; align-items: center; gap: 16px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s20-cm-main {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: var(--navy-primary); white-space: nowrap;
}
.s20-cm-sub {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark);
}

/* Body */
.s20-body {
  position: absolute; top: 194px; left: 60px; right: 60px; bottom: 85px;
  display: flex; flex-direction: column; gap: 20px;
}

/* DECISION HIERARCHY */
.s20-hierarchy-sec {
  display: flex; flex-direction: column; align-items: center;
  margin-top: 5px; flex-shrink: 0;
}
.s20-hier-root {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.05em; margin-bottom: 2px;
}
.s20-hier-arr { font-size: 16px; color: var(--navy-slate); line-height: 1; }
.s20-hier-check {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: white; background: var(--navy-primary);
  padding: 6px 20px; border-radius: 4px; margin-bottom: 12px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.1); position: relative; z-index: 2;
}
.s20-hc-sub { background: var(--navy-slate); margin-bottom: 12px; }

/* Hierarchical connecting lines */
.s20-hier-split {
  display: flex; justify-content: space-between;
  border-top: 2px solid var(--navy-slate);
  position: relative; margin-top: -14px; padding-top: 14px;
}
.s20-hier-split::before { /* Center vertical tick down from parent */
  content: ''; position: absolute; top: -14px; left: 50%;
  width: 2px; height: 14px; background: var(--navy-slate);
  transform: translateX(-50%);
}
.s20-hs-wide { width: 65%; }
.s20-hs-narrow { width: 85%; }

.s20-hier-branch {
  display: flex; flex-direction: column; align-items: center;
  position: relative; flex: 1;
}
/* Vertical tick down into child */
.s20-hier-arr-line {
  width: 2px; height: 14px; background: var(--navy-slate);
  margin-top: -14px; margin-bottom: 4px;
}

.s20-hier-cond {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--navy-primary); background: var(--slide-bg);
  padding: 0 6px; letter-spacing: 0.02em; margin-bottom: 2px;
}

/* Verdict Badges */
.s20-hier-verdict {
  font-family: var(--font-heading); font-size: 16px; font-weight: 700;
  color: white; padding: 6px 18px; border-radius: 4px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.15); letter-spacing: 0.04em;
}
.s20-hv-intact { background: #15803d; }
.s20-hv-anomaly { background: #b45309; }
.s20-hv-tamper { background: #d32f2f; }

/* THREE VERDICT PANELS */
.s20-verdicts {
  display: flex; gap: 20px; flex-shrink: 0;
}
.s20-vp {
  flex: 1; background: white; border: 1px solid var(--border-light);
  border-radius: 6px; padding: 14px 18px; display: flex; flex-direction: column;
  box-shadow: 0 3px 10px rgba(12,30,54,0.04);
}
.s20-vp-intact { border-top: 4px solid #15803d; }
.s20-vp-anomaly { border-top: 4px solid #b45309; }
.s20-vp-tamper { border-top: 4px solid #d32f2f; }

.s20-vp-head {
  font-family: var(--font-heading); font-size: 22px; font-weight: 700;
  letter-spacing: 0.03em; margin-bottom: 4px;
}
.s20-vp-intact .s20-vp-head { color: #15803d; }
.s20-vp-anomaly .s20-vp-head { color: #b45309; }
.s20-vp-tamper .s20-vp-head { color: #d32f2f; }

.s20-vp-cat {
  font-family: 'Courier New', monospace; font-size: 11px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.04em; margin-bottom: 8px;
  padding-bottom: 6px; border-bottom: 1px solid var(--border-light);
}
.s20-vp-def {
  font-family: 'Times New Roman', serif; font-size: 14.5px;
  color: var(--navy-dark); line-height: 1.35; margin-bottom: 12px; flex: 1;
}
.s20-vp-ex {
  background: var(--slide-bg); border-radius: 4px; padding: 8px 10px;
  display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px;
}
.s20-vpe-row code {
  font-family: 'Courier New', monospace; font-size: 13px; color: var(--navy-primary);
}
.s20-vp-bot {
  font-family: 'Times New Roman', serif; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); text-align: center;
  padding-top: 8px; border-top: 1px dashed var(--border-medium);
}

/* SPECIAL STATES */
.s20-special-states {
  background: white; border: 1px solid var(--border-light);
  border-left: 4px solid var(--navy-slate); border-radius: 4px;
  padding: 10px 16px; display: flex; flex-direction: column; gap: 8px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03); flex-shrink: 0;
}
.s20-ss-label {
  font-family: 'Courier New', monospace; font-size: 11.5px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.05em;
}
.s20-ss-cards {
  display: flex; gap: 24px;
}
.s20-ssc { flex: 1; display: flex; align-items: baseline; gap: 12px; }
.s20-ssc-title {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); background: rgba(24,34,56,0.05);
  padding: 2px 8px; border-radius: 3px; flex-shrink: 0;
}
.s20-ssc-desc {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark);
}
.s20-ss-note {
  font-family: 'Times New Roman', serif; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); text-align: center;
  padding-top: 6px; border-top: 1px dashed var(--border-light);
}

/* Bottom Rules Rail */
.s20-bottom-rail {
  position: absolute; bottom: 62px; left: 60px; right: 60px;
  display: flex; justify-content: center;
}
.s20-br-rule {
  background: white; border: 1px solid var(--orange-accent);
  padding: 6px 16px; border-radius: 20px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: 0 2px 8px rgba(255,122,0,0.1);
}
.s20-brr-lbl {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--orange-accent);
}
.s20-brr-txt {
  font-family: 'Times New Roman', serif; font-size: 14px; font-weight: 700;
  color: var(--navy-primary);
}

/* Bottom Bar */
.s20-bottom-bar {
  position: absolute; bottom: 0; left: 60px; right: 60px; height: 50px;
  background: var(--navy-primary); border-radius: 4px 4px 0 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; gap: 20px;
}
.s20-bb-left {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.02em;
}
.s20-bb-right {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: rgba(255,255,255,0.75); flex-shrink: 0;
}

/* Slide number */
.s20-slide-num {
  position: absolute; right: 60px; bottom: 16px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: white; z-index: 2;
}


/* ==========================================================================
   SLIDE 21: ATTACK SCENARIOS
   ========================================================================== */
#slide-21 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s21-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s21-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s21-subtitle {
  position: absolute; top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Top Strip */
.s21-top-strip {
  position: absolute; top: 144px; left: 60px; right: 60px;
  display: flex; gap: 20px; align-items: baseline;
  border-bottom: 2px solid var(--border-medium); padding-bottom: 8px;
}
.s21-ts-label {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.05em;
}
.s21-ts-areas {
  font-family: 'Times New Roman', serif; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); letter-spacing: 0.04em;
}

/* Core Message */
.s21-core-msg {
  position: absolute; top: 178px; left: 60px; right: 60px;
  display: flex; align-items: baseline; gap: 16px;
}
.s21-cm-main {
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700;
  color: var(--navy-primary); letter-spacing: 0.04em;
}
.s21-cm-sub {
  font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-dark); font-style: italic;
}

/* Validation Matrix */
.s21-matrix-container {
  position: absolute; top: 210px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-medium);
  border-radius: 4px; box-shadow: 0 4px 12px rgba(12,30,54,0.04);
}
.s21-matrix-tbl {
  width: 100%; border-collapse: collapse; table-layout: fixed;
}
.s21-matrix-tbl th {
  font-family: 'Courier New', monospace; font-size: 11.5px; font-weight: 700;
  color: var(--navy-slate); text-align: left; padding: 12px 14px;
  border-bottom: 2px solid var(--border-medium); background: var(--slide-bg);
  letter-spacing: 0.04em;
}
.s21-matrix-tbl th:nth-child(1) { width: 40px; }
.s21-matrix-tbl th:nth-child(2) { width: 23%; }
.s21-matrix-tbl th:nth-child(3) { width: 30%; }
.s21-matrix-tbl th:nth-child(4) { width: 28%; }
.s21-matrix-tbl th:nth-child(5) { width: 140px; }
.s21-matrix-tbl th:nth-child(6) { width: 80px; }
.s21-th-center, .s21-td-center { text-align: center !important; }

.s21-matrix-tbl td {
  font-family: 'Times New Roman', serif; font-size: 15.5px; color: var(--navy-primary);
  padding: 10px 14px; border-bottom: 1px solid var(--border-light);
  line-height: 1.3;
}
.s21-matrix-tbl tbody tr:nth-child(even) { background: rgba(24,34,56,0.015); }
.s21-matrix-tbl tbody tr:last-child td { border-bottom: none; }
.s21-matrix-tbl code {
  font-family: 'Courier New', monospace; font-size: 14px; color: var(--navy-dark);
}

.s21-td-num {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--navy-slate);
}
.s21-td-name {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
}
.s21-tr-hero { background: rgba(255,122,0,0.04) !important; }

/* Status Badges */
.s21-badge {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: white; padding: 4px 10px; border-radius: 3px;
  display: inline-block; min-width: 80px; text-align: center;
}
.s21-b-intact { background: #15803d; }
.s21-b-anomaly { background: #b45309; }
.s21-b-tamper { background: #d32f2f; }
.s21-b-iso { background: var(--navy-slate); }

.s21-hero-tag {
  display: inline-block; margin-left: 6px; font-family: 'Courier New', monospace;
  font-size: 10px; font-weight: 700; color: white; background: var(--orange-accent);
  padding: 2px 6px; border-radius: 2px; vertical-align: middle;
}

/* Colors */
.s21-txt-green { color: #15803d; font-family: 'Courier New', monospace; font-weight: 700; font-size: 14px;}
.s21-txt-amb { color: #b45309; }
.s21-txt-red { color: #d32f2f; }
.s21-txt-navy { color: var(--navy-slate); }
.s21-txt-org { color: var(--orange-accent) !important; }

/* Bottom Summary */
.s21-summary-row {
  position: absolute; top: 685px; left: 60px; right: 60px;
  display: flex; justify-content: space-between; align-items: stretch; gap: 20px;
}
.s21-sr-counts {
  background: white; border: 1px solid var(--border-medium); border-radius: 4px;
  padding: 12px 20px; display: flex; gap: 16px; align-items: center; flex: 1;
}
.s21-src {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700;
}
.s21-src-div { color: var(--border-medium); }

.s21-sr-principle {
  background: white; border: 1px solid var(--border-medium); border-radius: 4px;
  border-left: 4px solid var(--navy-primary); padding: 12px 20px;
  display: flex; flex-direction: column; justify-content: center; flex: 1.5;
}
.s21-srp-main {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 2px;
}
.s21-srp-sub {
  font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-dark);
}

/* Footers */
.s21-footer {
  position: absolute; top: 760px; left: 60px; right: 60px;
  display: flex; gap: 20px;
}
.s21-foot-box {
  flex: 1; border-top: 1px dashed var(--border-medium); padding-top: 10px;
}
.s21-fb-title {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--navy-slate); margin-bottom: 4px; letter-spacing: 0.05em;
}
.s21-fb-desc {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark);
}
.s21-fb-hero {
  border-top-color: var(--orange-accent); border-top-style: solid;
}
.s21-fb-flow {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--navy-primary); display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}

/* Bottom Bar */
.s21-bottom-bar {
  position: absolute; bottom: 0; left: 60px; right: 60px; height: 50px;
  background: var(--navy-primary); border-radius: 4px 4px 0 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; gap: 20px;
}
.s21-bb-left {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.02em;
}
.s21-bb-right {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: rgba(255,255,255,0.75); flex-shrink: 0;
}

/* Slide number */
.s21-slide-num {
  position: absolute; right: 60px; bottom: 16px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: white; z-index: 2;
}


/* ==========================================================================
   SLIDE 22: TAMPERING DEMONSTRATION
   ========================================================================== */
#slide-22 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s22-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s22-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s22-subtitle {
  position: absolute; top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Hero Question */
.s22-hero-q {
  position: absolute; top: 146px; left: 60px; right: 60px;
  background: white; border-top: 4px solid var(--navy-primary);
  border-bottom: 1px solid var(--border-light); border-radius: 4px;
  padding: 8px 16px; display: flex; align-items: baseline; gap: 16px;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s22-hq-main {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); white-space: nowrap; letter-spacing: 0.02em;
}
.s22-hq-sub {
  font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-dark); font-style: italic;
}

/* 3 Stages Container */
.s22-stages {
  position: absolute; top: 196px; left: 60px; right: 60px; height: 500px;
  display: flex; gap: 20px;
}
.s22-stage {
  flex: 1; background: white; border: 1px solid var(--border-light);
  border-radius: 6px; display: flex; flex-direction: column;
  box-shadow: 0 4px 12px rgba(12,30,54,0.04); overflow: hidden;
}
.s22-stage-attack {
  background: rgba(255,122,0,0.02); border-color: rgba(255,122,0,0.2);
}

.s22-st-head {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--slide-bg); border-bottom: 1px solid var(--border-medium);
  padding: 10px 14px;
}
.s22-sth-title {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); letter-spacing: 0.04em;
}
.s22-sth-stat {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: white; padding: 4px 10px; border-radius: 4px;
}
.s22-stat-grn { background: #15803d; }
.s22-stat-org { background: #b45309; }
.s22-stat-red { background: #d32f2f; }

.s22-st-body {
  padding: 16px; display: flex; flex-direction: column; gap: 14px; flex: 1;
}

/* Colors */
.s22-txt-grn { color: #15803d; font-weight: 700; }
.s22-txt-hgrn { color: #15803d; font-weight: 700; font-size: 15px !important; background: rgba(21,128,61,0.08); padding: 0 4px; border-radius: 2px;}
.s22-txt-org { color: var(--orange-accent); }
.s22-txt-red { color: #d32f2f; font-weight: 700; }
.s22-txt-navy { color: var(--navy-primary); font-weight: 700; }

/* Stage 1 Content */
.s22-evt-table {
  display: flex; flex-direction: column; gap: 6px;
  border: 1px solid var(--border-light); padding: 10px; border-radius: 4px;
  background: var(--slide-bg);
}
.s22-evt-row { display: flex; justify-content: space-between; align-items: baseline; }
.s22-er-lbl { font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate); }
.s22-er-val { font-family: 'Courier New', monospace; font-size: 14px; color: var(--navy-primary); }

.s22-canon { display: flex; flex-direction: column; gap: 4px; }
.s22-can-lbl { font-family: 'Courier New', monospace; font-size: 11px; font-weight: 700; color: var(--navy-slate); text-align: center;}
.s22-can-code {
  background: var(--navy-primary); color: white; padding: 10px; border-radius: 4px;
  font-family: 'Courier New', monospace; font-size: 13px; line-height: 1.4;
  word-wrap: break-word; text-align: center;
}

.s22-anchor-box {
  margin-top: auto; border: 2px solid var(--navy-primary); border-radius: 4px;
  padding: 10px; text-align: center; background: rgba(24,34,56,0.03);
}
.s22-ab-lbl { font-family: 'Courier New', monospace; font-size: 11.5px; font-weight: 700; color: var(--navy-slate); margin-bottom: 2px; }
.s22-ab-title { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--navy-primary); }
.s22-ab-hash { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--navy-primary); margin: 4px 0; }
.s22-ab-sub { font-family: 'Times New Roman', serif; font-size: 13px; color: var(--navy-dark); font-style: italic; }

/* Stage 2 Content */
.s22-att-change {
  display: flex; align-items: center; justify-content: space-around;
  background: white; border: 1px solid var(--border-medium); border-radius: 4px;
  padding: 12px; box-shadow: 0 2px 8px rgba(255,122,0,0.08);
}
.s22-ac-col { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.s22-ac-lbl { font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate); }
.s22-ac-val { font-family: 'Courier New', monospace; font-size: 18px; font-weight: 700; color: var(--navy-primary); }
.s22-ac-arr { font-size: 24px; color: var(--navy-slate); }
.s22-ac-delta {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: white; background: #b45309; padding: 4px 8px; border-radius: 12px;
}

.s22-sql-box { display: flex; flex-direction: column; gap: 6px; }
.s22-sql-code {
  background: var(--navy-primary); border-left: 4px solid var(--orange-accent);
  padding: 12px; border-radius: 4px; color: white;
  font-family: 'Courier New', monospace; font-size: 14px; line-height: 1.4;
}
.s22-sql-lbl { font-family: 'Courier New', monospace; font-size: 12.5px; font-weight: 700; color: var(--orange-accent); text-align: center; margin-top: 4px;}
.s22-sql-sub { font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark); text-align: center; }

.s22-att-target {
  margin-top: auto; border-top: 1px dashed var(--orange-accent); padding-top: 10px;
}
.s22-at-main { font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700; color: #b45309; text-align: center; margin-bottom: 4px; }
.s22-at-sub { font-family: 'Times New Roman', serif; font-size: 13px; color: var(--navy-dark); text-align: center; line-height: 1.3;}
.s22-att-adv {
  font-family: 'Courier New', monospace; font-size: 11px; font-weight: 700;
  color: var(--navy-slate); text-align: center; margin-top: 4px;
}

/* Stage 3 Content */
.s22-sb-recheck { justify-content: space-between; }
.s22-flow-strip {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-family: 'Courier New', monospace; font-size: 11.5px; font-weight: 700;
  color: var(--navy-slate); text-align: center;
}

.s22-hero-comp {
  background: white; border: 3px solid #d32f2f; border-radius: 6px;
  padding: 16px; display: flex; flex-direction: column; align-items: center;
  box-shadow: 0 6px 16px rgba(211,47,47,0.15); margin: 10px 0;
}
.s22-hc-top {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: #d32f2f; margin-bottom: 8px; letter-spacing: 0.05em;
}
.s22-hc-hash-row { display: flex; flex-direction: column; align-items: center; }
.s22-hchr-lbl { font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700; }
.s22-hchr-val { font-family: 'Courier New', monospace; font-size: 18px; font-weight: 700; letter-spacing: -0.02em; }
.s22-hc-neq {
  font-family: 'Times New Roman', serif; font-size: 42px; font-weight: 700;
  color: #d32f2f; line-height: 0.8; margin: 6px 0;
}
.s22-hc-bot {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); margin-top: 10px; border-top: 1px solid var(--border-light);
  padding-top: 6px; width: 100%; text-align: center;
}
.s22-hc-tamp {
  font-family: var(--font-heading); font-size: 20px; font-weight: 700;
  color: white; background: #d32f2f; padding: 4px 16px; border-radius: 4px;
  margin-top: 8px; letter-spacing: 0.05em;
}

.s22-divergence { text-align: center; }
.s22-div-title {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: #d32f2f; margin-bottom: 4px;
}
.s22-div-sub {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark); line-height: 1.3;
}

/* Bottom Analysis Panels */
.s22-analysis-row {
  position: absolute; top: 710px; left: 60px; right: 60px;
  display: flex; gap: 20px; align-items: stretch; height: 130px;
}
.s22-ar-col {
  flex: 1; background: white; border: 1px solid var(--border-medium);
  border-radius: 4px; padding: 12px 16px; display: flex; flex-direction: column;
  justify-content: center; box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s22-ar-detect { border-left: 4px solid var(--orange-accent); }
.s22-arc-head {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); margin-bottom: 8px; border-bottom: 1px solid var(--border-light);
  padding-bottom: 4px;
}
.s22-arc-math {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  margin-bottom: 8px;
}
.s22-math-op { color: var(--navy-slate); font-weight: normal; margin: 0 4px; }
.s22-arc-sub {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark); line-height: 1.4;
}
.s22-arc-rule {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 4px;
}
.s22-arc-rsub {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark);
  margin-bottom: 8px; padding-bottom: 8px; border-bottom: 1px dashed var(--border-light);
}
.s22-arc-split { display: flex; gap: 16px; }
.s22-as-box { flex: 1; }
.s22-asb-title {
  font-family: 'Courier New', monospace; font-size: 11.5px; font-weight: 700; color: var(--navy-slate);
}
.s22-asb-sub {
  font-family: 'Times New Roman', serif; font-size: 13px; color: var(--navy-dark); line-height: 1.3;
}

/* Bottom Bar */
.s22-bottom-bar {
  position: absolute; bottom: 0; left: 60px; right: 60px; height: 50px;
  background: var(--navy-primary); border-radius: 4px 4px 0 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; gap: 20px;
}
.s22-bb-left {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.02em;
}
.s22-bb-right {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: rgba(255,255,255,0.75); flex-shrink: 0;
}

/* Slide number */
.s22-slide-num {
  position: absolute; right: 60px; bottom: 16px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: white; z-index: 2;
}


/* ==========================================================================
   SLIDE 23: IMPLEMENTATION & VALIDATION RESULTS
   ========================================================================== */
#slide-23 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s23-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s23-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s23-subtitle {
  position: absolute; top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Body */
.s23-body {
  position: absolute; top: 148px; left: 60px; right: 60px; bottom: 45px;
  display: flex; flex-direction: column; gap: 20px;
}

/* Colors */
.s23-txt-grn { color: #15803d; font-family: 'Courier New', monospace; font-weight: 700;}
.s23-txt-org { color: var(--orange-accent) !important; }
.s23-txt-navy { color: var(--navy-primary) !important; }
.s23-txt-red { color: #d32f2f; font-weight: 700;}

/* Status Badges */
.s23-badge {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: white; padding: 4px 10px; border-radius: 3px;
  display: inline-block; min-width: 80px; text-align: center;
}
.s23-b-intact { background: #15803d; }
.s23-b-anomaly { background: #b45309; }
.s23-b-tamper { background: #d32f2f; }
.s23-b-iso { background: var(--navy-slate); min-width: 180px; }

/* Validation Evidence Panels */
.s23-val-band {
  display: flex; gap: 16px; height: 130px; flex-shrink: 0;
}
.s23-vb-panel {
  flex: 1; background: white; border: 1px solid var(--border-medium);
  border-radius: 4px; padding: 12px 16px; display: flex; flex-direction: column;
  box-shadow: 0 2px 6px rgba(12,30,54,0.03); align-items: center; text-align: center;
}
.s23-vbp-val {
  font-family: 'Courier New', monospace; font-size: 32px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 2px; line-height: 1;
}
.s23-vbp-lbl {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.04em; border-bottom: 1px solid var(--border-light);
  padding-bottom: 4px; margin-bottom: 6px; width: 100%;
}
.s23-vbp-sub {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark);
  flex: 1; line-height: 1.25;
}
.s23-vbp-stat {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: #15803d; margin-top: 4px; background: rgba(21,128,61,0.08);
  padding: 2px 10px; border-radius: 3px;
}

/* Matrix Section */
.s23-matrix-sec {
  background: white; border: 1px solid var(--border-medium);
  border-radius: 4px; padding: 16px 20px; box-shadow: 0 4px 12px rgba(12,30,54,0.04);
  display: flex; flex-direction: column;
}
.s23-ms-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 10px; border-bottom: 2px solid var(--navy-primary); padding-bottom: 6px;
}
.s23-msh-title {
  font-family: var(--font-heading); font-size: 22px; font-weight: 700; color: var(--navy-primary);
}
.s23-msh-sub {
  font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-dark); font-style: italic;
}
.s23-msh-counts {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--navy-slate);
}

.s23-matrix-tbl { width: 100%; border-collapse: collapse; }
.s23-matrix-tbl th {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--navy-slate); text-align: left; padding: 6px 10px;
  border-bottom: 1px solid var(--border-medium); background: var(--slide-bg);
}
.s23-matrix-tbl td {
  font-family: 'Times New Roman', serif; font-size: 15.5px; color: var(--navy-primary);
  padding: 6px 10px; border-bottom: 1px solid var(--border-light);
}
.s23-matrix-tbl tbody tr:nth-child(even) { background: rgba(24,34,56,0.015); }
.s23-matrix-tbl tbody tr:last-child td { border-bottom: none; }
.s23-td-center { text-align: center; }

.s23-ms-bot {
  font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700;
  color: var(--navy-primary); text-align: center; margin-top: 10px;
  padding-top: 8px; border-top: 1px dashed var(--border-light);
}

/* Bottom Blocks */
.s23-bottom-blocks {
  display: flex; gap: 20px; flex: 1;
}

.s23-bb-key {
  flex: 1.5; background: white; border: 1px solid var(--border-medium);
  border-left: 4px solid var(--navy-primary); border-radius: 4px;
  padding: 16px; display: flex; flex-direction: column; gap: 8px;
}
.s23-bbk-title {
  font-family: var(--font-heading); font-size: 20px; font-weight: 700; color: var(--navy-primary);
}
.s23-bbk-main {
  font-family: 'Times New Roman', serif; font-size: 16px; font-weight: 700; color: var(--navy-primary); line-height: 1.3;
}
.s23-bbk-sub {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark); line-height: 1.3;
}
.s23-bbk-sub code { font-family: 'Courier New', monospace; color: var(--orange-accent); }
.s23-bbk-vis {
  display: flex; align-items: center; justify-content: center; gap: 20px;
  margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--border-light);
}
.s23-bkv-col {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--navy-slate); text-align: center; line-height: 1.4;
}
.s23-bkv-mid { text-align: center; line-height: 1.2; }
.s23-bkv-neq { font-size: 32px; line-height: 1; }

.s23-bb-indep {
  flex: 1; background: white; border: 1px solid var(--border-medium);
  border-radius: 4px; padding: 16px; display: flex; flex-direction: column; gap: 8px;
}
.s23-bbi-title {
  font-family: var(--font-heading); font-size: 20px; font-weight: 700; color: var(--navy-primary);
}
.s23-bbi-main {
  font-family: 'Times New Roman', serif; font-size: 15px; font-weight: 700; color: var(--navy-primary);
}
.s23-bbi-main code { font-family: 'Courier New', monospace; font-size: 14px; color: var(--orange-accent); }
.s23-bbi-sub {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark); line-height: 1.3; margin-bottom: auto;
}
.s23-bbi-notes { display: flex; flex-direction: column; gap: 4px; border-top: 1px dashed var(--border-light); padding-top: 10px; }
.s23-bbi-note {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700;
  color: var(--navy-slate); background: rgba(24,34,56,0.04); padding: 4px 8px; border-radius: 3px;
}

/* Footer Scope */
.s23-footer-scope {
  position: absolute; bottom: 16px; left: 60px; right: 200px;
  font-family: 'Times New Roman', serif; font-size: 13px; color: var(--navy-slate);
  line-height: 1.2;
}
.s23-footer-scope strong { font-family: 'Courier New', monospace; color: var(--navy-dark); font-size: 12px; }

/* Slide number */
.s23-slide-num {
  position: absolute; right: 60px; bottom: 16px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 24: CONTRIBUTION & FUTURE DIRECTION
   ========================================================================== */
#slide-24 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s24-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s24-title {
  position: absolute; top: 60px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s24-subtitle {
  position: absolute; top: 114px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* 3 Columns */
.s24-3cols {
  position: absolute; top: 160px; left: 60px; right: 60px; height: 350px;
  display: flex; gap: 24px;
}
.s24-col {
  flex: 1; display: flex; flex-direction: column;
}
.s24-col-divider {
  width: 1px; background: var(--border-medium); margin: 0 4px;
}
.s24-col-title {
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700;
  color: var(--navy-primary); border-bottom: 2px solid var(--border-medium);
  padding-bottom: 8px; margin-bottom: 16px; letter-spacing: 0.05em;
}
.s24-txt-org { color: var(--orange-accent); border-bottom-color: var(--orange-accent); }

.s24-items {
  display: flex; flex-direction: column; gap: 16px;
}
.s24-item-title {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 4px;
}
.s24-item-desc {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-dark);
  line-height: 1.35;
}
.s24-item-desc code {
  font-family: 'Courier New', monospace; font-size: 13.5px; color: var(--orange-accent);
}

/* Core Contribution */
.s24-core-cont {
  position: absolute; top: 540px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-medium);
  border-left: 4px solid var(--navy-primary); border-radius: 4px;
  padding: 24px 30px; box-shadow: 0 4px 12px rgba(12,30,54,0.03);
  display: flex; flex-direction: column; align-items: center; text-align: center;
}
.s24-cc-title {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.05em; margin-bottom: 16px;
}
.s24-cc-pipe {
  display: flex; align-items: center; gap: 12px; margin-bottom: 20px;
  background: rgba(24,34,56,0.02); padding: 10px 20px; border-radius: 40px;
  border: 1px solid var(--border-light);
}
.s24-ccp-item {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700;
  color: var(--navy-slate);
}
.s24-ccp-arr {
  color: var(--orange-accent); font-weight: 700; font-size: 16px;
}
.s24-ccp-end {
  color: var(--navy-primary); background: rgba(24,34,56,0.06); padding: 4px 12px; border-radius: 20px;
}
.s24-cc-stat {
  font-family: 'Times New Roman', serif; font-size: 17px; color: var(--navy-primary);
  line-height: 1.4; max-width: 900px; margin-bottom: 12px;
}
.s24-cc-sub {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark); font-style: italic;
}

/* Bottom Row */
.s24-bot-row {
  position: absolute; top: 780px; left: 60px; right: 60px;
  display: flex; justify-content: space-between; align-items: flex-end;
}
.s24-convergence {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.s24-cv-top {
  display: flex; gap: 24px; text-align: center;
}
.s24-cvt-item {
  display: flex; flex-direction: column; gap: 2px;
}
.s24-cvt-lbl {
  font-family: var(--font-heading); font-size: 16px; font-weight: 700; color: var(--navy-primary);
}
.s24-cvt-val {
  font-family: 'Courier New', monospace; font-size: 12px; font-weight: 700; color: var(--navy-slate);
}
.s24-cv-arr {
  font-size: 18px; color: var(--navy-slate); line-height: 1;
}
.s24-cv-bot {
  font-family: 'Courier New', monospace; font-size: 18px; font-weight: 700;
  color: var(--navy-primary); letter-spacing: 0.1em;
  border-bottom: 2px solid var(--orange-accent); padding-bottom: 2px;
}

.s24-closing {
  font-family: var(--font-heading); font-size: 20px; font-weight: 700;
  color: var(--navy-primary); padding: 12px 24px;
  background: white; border-left: 3px solid var(--orange-accent);
  box-shadow: 0 4px 12px rgba(12,30,54,0.04);
}

/* Slide number */
.s24-slide-num {
  position: absolute; right: 60px; bottom: 16px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 25: THANK YOU
   ========================================================================== */
#slide-25 {
  background: var(--slide-bg);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

.s25-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
  max-width: 1200px;
}

.s25-proj {
  font-family: 'Courier New', monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.2em;
  margin-bottom: 28px;
}

.s25-title {
  font-family: var(--font-heading);
  font-size: 72px;
  font-weight: 700;
  color: var(--navy-primary);
  margin: 0 0 24px 0;
  line-height: 1;
}

.s25-sub1 {
  font-family: 'Times New Roman', serif;
  font-size: 22px;
  color: var(--navy-dark);
  margin-bottom: 14px;
}

.s25-sub2 {
  font-family: 'Courier New', monospace;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--orange-accent);
  margin-bottom: 54px;
  letter-spacing: 0.05em;
}

.s25-pipeline {
  font-family: 'Courier New', monospace;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.05em;
  border-top: 1px solid var(--border-medium);
  border-bottom: 1px solid var(--border-medium);
  padding: 14px 48px;
  margin-bottom: 64px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.s25-arr {
  color: var(--orange-accent);
  font-size: 18px;
}

.s25-qa {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  color: var(--navy-primary);
  margin-bottom: 80px;
}

.s25-uni {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.s25-uni-name {
  font-family: var(--font-heading);
  font-size: 21px;
  font-weight: 700;
  color: var(--navy-primary);
}
.s25-uni-school {
  font-family: 'Courier New', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-slate);
  letter-spacing: 0.05em;
}


/* ==========================================================================
   SLIDE 19 (V2): HOW IS EVIDENCE VERIFIED LATER?
   ========================================================================== */
#slide-19 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s19v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s19v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 50px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s19v2-subtitle {
  position: absolute; top: 110px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Principle */
.s19v2-principle {
  position: absolute; top: 154px; left: 60px; right: 60px;
  border-left: 4px solid var(--navy-primary); padding-left: 16px;
}
.s19v2-principle strong {
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-primary);
}

/* Colors */
.s19v2-txt-org { color: var(--orange-accent) !important; }
.s19v2-txt-navy { color: var(--navy-primary) !important; }
.s19v2-txt-grn { color: #15803d !important; }
.s19v2-txt-red { color: #d32f2f !important; }
.s19v2-txt-amb { color: #b45309 !important; }

/* Main Flow Container */
.s19v2-flow-container {
  position: absolute; top: 200px; left: 60px; right: 60px;
  display: flex; gap: 20px; height: 400px; align-items: stretch;
}
.s19v2-fc-box {
  flex: 1; background: white; border: 1px solid var(--border-medium);
  border-radius: 6px; display: flex; flex-direction: column;
  box-shadow: 0 2px 8px rgba(12,30,54,0.03); overflow: hidden;
}
.s19v2-fc-head {
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-slate); text-align: center; padding: 16px;
  border-bottom: 1px solid var(--border-light); background: rgba(24,34,56,0.01);
  letter-spacing: 0.04em;
}
.s19v2-fc-body {
  flex: 1; display: flex; flex-direction: column; justify-content: center;
  align-items: center; padding: 20px; gap: 6px;
}
.s19v2-fb-recon { gap: 24px; }

/* Steps */
.s19v2-fc-step {
  font-family: 'Times New Roman', serif; font-size: 17.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center;
}
.s19v2-fc-arr {
  font-family: 'Courier New', monospace; font-size: 18px; color: var(--navy-slate); margin: 4px 0;
}
.s19v2-fc-res {
  font-family: 'Courier New', monospace; font-size: 20px; font-weight: 700;
  color: var(--orange-accent); margin-top: 6px;
}
.s19v2-fc-code {
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700;
  color: white; background: var(--navy-primary); padding: 6px 14px; border-radius: 4px;
}
.s19v2-mt10 { margin-top: 14px; }
.s19v2-fc-meth { font-family: 'Courier New', monospace; font-size: 16.5px; color: var(--orange-accent); }
.s19v2-fc-struct { font-family: 'Courier New', monospace; font-size: 16.5px; color: var(--navy-primary); }
.s19v2-fc-prop { font-family: 'Courier New', monospace; font-size: 16.5px; color: var(--navy-slate); }

/* Arrows */
.s19v2-flow-arrow {
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  width: 70px;
}
.s19v2-flow-arrow span {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); margin-bottom: 6px;
}
.s19v2-fa-line {
  font-size: 32px; color: var(--border-medium); line-height: 1; font-family: 'Courier New', monospace; font-weight: bold;
}

/* Reconciliation */
.s19v2-recon-top {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
}
.s19v2-rt-hash {
  font-family: 'Courier New', monospace; font-size: 24px; font-weight: 700;
  color: var(--orange-accent);
}
.s19v2-rt-arr {
  font-size: 32px; font-weight: 700; color: var(--navy-slate); line-height: 0.8; margin: 4px 0;
}
.s19v2-recon-bot {
  border: 1px solid var(--border-medium); border-radius: 4px; padding: 16px 28px;
  display: flex; flex-direction: column; gap: 10px; width: 100%; max-width: 270px;
}
.s19v2-rb-row {
  display: flex; justify-content: space-between; align-items: center; font-family: 'Courier New', monospace;
}
.s19v2-rb-lbl { font-size: 15.5px; font-weight: 700; color: var(--navy-slate); }
.s19v2-rb-val { font-size: 16.5px; font-weight: 700; }
.s19v2-rb-div { height: 1px; background: var(--border-light); width: 100%; }
.s19v2-recon-evt {
  margin-top: auto; font-family: 'Courier New', monospace; font-size: 14px; color: var(--navy-slate);
}

/* 7 Dimensions */
.s19v2-dims {
  position: absolute; top: 630px; left: 60px; right: 60px;
}
.s19v2-dims-title {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 16px;
}
.s19v2-dims-grid {
  display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 10px;
}
.s19v2-dg-item {
  font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-primary);
  border: 1px solid var(--border-medium); padding: 8px 14px; border-radius: 4px;
  background: white; font-weight: bold;
}
.s19v2-dg-emph {
  border-color: var(--orange-accent); border-width: 2px; color: var(--navy-primary);
}
.s19v2-dims-sub {
  font-family: 'Times New Roman', serif; font-size: 15.5px; color: var(--navy-dark); font-style: italic;
}

/* Interpretation Strip */
.s19v2-interp {
  position: absolute; top: 760px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-medium); border-radius: 4px;
  padding: 20px 24px; box-shadow: 0 2px 6px rgba(12,30,54,0.03);
}
.s19v2-int-title {
  font-family: 'Courier New', monospace; font-size: 15.5px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 16px;
}
.s19v2-int-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px;
}
.s19v2-ig-item {
  font-family: 'Courier New', monospace; font-size: 16px; color: var(--navy-dark);
}
.s19v2-ig-lbl { font-weight: 700; color: var(--navy-primary); }
.s19v2-ig-val { font-family: 'Times New Roman', serif; font-weight: 700;}

.s19v2-int-bot {
  margin-top: 16px; padding-top: 12px; border-top: 1px dashed var(--border-light);
  font-family: 'Times New Roman', serif; font-size: 15.5px; color: var(--navy-dark); font-weight: 700;
}

/* Final Statement */
.s19v2-final {
  position: absolute; bottom: 85px; left: 60px; right: 60px;
  border-top: 2px solid var(--navy-primary); padding-top: 20px;
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center; letter-spacing: 0.05em;
}

/* Slide number */
.s19v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 18 (V2): BLOCKCHAIN EVIDENCE ANCHORING
   ========================================================================== */
#slide-18 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s18v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s18v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 50px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s18v2-subtitle {
  position: absolute; top: 110px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Principle */
.s18v2-principle {
  position: absolute; top: 154px; left: 60px; right: 60px;
  border: 1px solid var(--border-medium); border-left: 4px solid var(--navy-primary);
  background: white; padding: 14px 20px; border-radius: 4px;
}
.s18v2-pr-head {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 6px; letter-spacing: 0.03em;
}
.s18v2-pr-body {
  font-family: 'Times New Roman', serif; font-size: 17.5px; color: var(--navy-dark);
}

/* Pipeline */
.s18v2-pipe-title {
  position: absolute; top: 236px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 15.5px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.05em;
}
.s18v2-pipe {
  position: absolute; top: 260px; left: 60px; right: 60px;
  display: flex; gap: 16px; height: 350px; align-items: stretch;
}
.s18v2-stage {
  flex: 1; background: white; border: 1px solid var(--border-medium);
  border-radius: 6px; display: flex; flex-direction: column; overflow: hidden;
}
.s18v2-st-head {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-primary); text-align: center; padding: 14px;
  border-bottom: 1px solid var(--border-light); background: rgba(24,34,56,0.01);
}
.s18v2-st-body {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 16px; text-align: center; gap: 6px;
}
.s18v2-arr {
  display: flex; align-items: center; justify-content: center; width: 32px;
  font-size: 32px; color: var(--border-medium); font-family: 'Courier New', monospace; font-weight: bold;
}

/* Stage Elements */
.s18v2-st-evt { font-family: 'Courier New', monospace; font-size: 20px; font-weight: 700; color: var(--navy-primary); margin-bottom: 16px; }
.s18v2-st-desc { font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-dark); line-height: 1.35; }
.s18v2-st-note { font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-slate); font-style: italic; margin-top: auto; }
.s18v2-st-val { font-family: 'Times New Roman', serif; font-size: 16.5px; font-weight: 700; color: var(--navy-primary); }
.s18v2-da { font-family: 'Courier New', monospace; font-size: 16px; color: var(--navy-slate); margin: 4px 0; }
.s18v2-st-hash { font-family: 'Courier New', monospace; font-size: 18px; font-weight: 700; margin: 6px 0; }
.s18v2-st-code { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: white; background: var(--navy-primary); padding: 6px 12px; border-radius: 4px; }
.s18v2-st-meth { font-family: 'Courier New', monospace; font-size: 15.5px; color: var(--orange-accent); }
.s18v2-st-status { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: white; background: #15803d; padding: 6px 14px; border-radius: 20px; margin-top: 12px; }
.s18v2-st-tiny { font-family: 'Courier New', monospace; font-size: 12.5px; color: var(--navy-slate); margin-top: 6px; }

/* On-Chain Record */
.s18v2-record {
  position: absolute; top: 630px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-medium); border-radius: 4px; padding: 16px 24px;
}
.s18v2-rec-title {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-primary); margin-bottom: 12px;
}
.s18v2-rec-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px 32px;
}
.s18v2-rg-row { display: flex; justify-content: space-between; font-family: 'Courier New', monospace; font-size: 15.5px; border-bottom: 1px solid var(--border-light); padding-bottom: 6px; }
.s18v2-rg-key { color: var(--navy-slate); }
.s18v2-rg-val { font-weight: 700; color: var(--navy-primary); }

/* Distinction Strip */
.s18v2-hash-diff {
  position: absolute; top: 760px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-medium); border-radius: 4px; padding: 16px 24px; border-left: 4px solid var(--orange-accent);
}
.s18v2-hd-title { font-family: 'Courier New', monospace; font-size: 15.5px; font-weight: 700; color: var(--navy-primary); margin-bottom: 10px; }
.s18v2-hd-body { font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-dark); margin-bottom: 8px; }
.s18v2-hd-lbl { font-weight: 700; color: var(--navy-primary); }
.s18v2-hd-sub { font-family: 'Courier New', monospace; font-size: 15px; color: var(--navy-slate); }

/* Storage */
.s18v2-storage {
  position: absolute; top: 880px; left: 60px; right: 60px; height: 75px;
  background: white; border: 1px solid var(--border-medium); border-radius: 4px; padding: 0 24px;
  display: flex; flex-direction: column; justify-content: center; gap: 8px;
}
.s18v2-stg-row { font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-dark); }
.s18v2-stg-row strong { font-family: 'Courier New', monospace; font-size: 15.5px; color: var(--navy-primary); }

/* Final Statement */
.s18v2-final {
  position: absolute; bottom: 50px; left: 60px; right: 60px;
  border-top: 2px solid var(--navy-primary); padding-top: 20px;
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center; letter-spacing: 0.05em;
}

/* Slide number */
.s18v2-slide-num {
  position: absolute; right: 60px; bottom: 25px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}

/* Colors */
.s18v2-txt-org { color: var(--orange-accent) !important; }
.s18v2-txt-navy { color: var(--navy-primary) !important; }
.s18v2-txt-grn { color: #15803d !important; }


/* ==========================================================================
   SLIDE 17 (V2): EVIDENCE PRESERVATION & PROVENANCE
   ========================================================================== */
#slide-17 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s17v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s17v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 50px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s17v2-subtitle {
  position: absolute; top: 110px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}
.s17v2-process {
  position: absolute; top: 154px; left: 60px; right: 60px;
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.1em;
}

/* Colors */
.s17v2-txt-org { color: var(--orange-accent) !important; }
.s17v2-txt-navy { color: var(--navy-primary) !important; }

/* 2 Columns */
.s17v2-2cols {
  position: absolute; top: 200px; left: 60px; right: 60px;
  display: flex; gap: 32px; height: 420px; align-items: stretch;
}
.s17v2-col {
  flex: 1; background: white; border: 1px solid var(--border-medium);
  border-radius: 6px; display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02);
}
.s17v2-col-head {
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); padding: 16px 20px; border-bottom: 1px solid var(--border-light);
  background: rgba(24,34,56,0.01); letter-spacing: 0.04em;
}
.s17v2-col-body {
  flex: 1; padding: 24px 32px; display: flex; flex-direction: column;
}

/* Evidence Preservation */
.s17v2-ce-title {
  font-family: 'Times New Roman', serif; font-size: 20px; font-weight: 700; color: var(--navy-primary);
}
.s17v2-ce-sub {
  font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-dark); margin-bottom: 24px;
}
.s17v2-flow {
  display: flex; flex-direction: column; align-items: center; gap: 4px; margin-bottom: 24px;
}
.s17v2-fl-val {
  font-family: 'Courier New', monospace; font-size: 17px; font-weight: 700; color: var(--navy-slate);
}
.s17v2-fl-arr {
  font-size: 24px; font-family: 'Courier New', monospace; font-weight: bold; color: var(--border-medium); line-height: 1; margin: 6px 0;
}
.s17v2-db-grid {
  display: flex; flex-direction: column; gap: 16px; border-top: 1px solid var(--border-light); padding-top: 20px;
  margin-top: auto;
}
.s17v2-db-row {
  font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-dark); line-height: 1.35;
}
.s17v2-db-row strong {
  font-family: 'Courier New', monospace; font-size: 16px; color: var(--navy-primary);
}

/* Provenance Record */
.s17v2-prov-body {
  justify-content: center;
}
.s17v2-rec-grid {
  display: flex; flex-direction: column; gap: 20px; width: 100%; max-width: 560px; margin: 0 auto;
}
.s17v2-rg-row {
  display: flex; justify-content: space-between; border-bottom: 1px solid var(--border-light); padding-bottom: 8px;
  font-family: 'Courier New', monospace; font-size: 16.5px;
}
.s17v2-rg-key { color: var(--navy-slate); }
.s17v2-rg-val { font-weight: 700; color: var(--navy-primary); }

/* Trust Separation */
.s17v2-trust {
  position: absolute; top: 650px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-medium); border-radius: 6px;
  display: flex; flex-direction: column; overflow: hidden; box-shadow: 0 2px 8px rgba(12,30,54,0.02);
}
.s17v2-trust-head {
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); padding: 16px 20px; border-bottom: 1px solid var(--border-light);
  background: rgba(24,34,56,0.01); letter-spacing: 0.04em;
}
.s17v2-trust-body {
  display: flex; flex-direction: column; padding: 24px 32px; gap: 32px;
}

.s17v2-ts-flow {
  display: flex; justify-content: center; align-items: center; gap: 32px;
}
.s17v2-ts-box {
  border: 1px solid var(--border-medium); border-radius: 4px; padding: 16px 24px; width: 300px; text-align: center;
}
.s17v2-ts-onchain { border-color: var(--orange-accent); }
.s17v2-tsb-title {
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700; color: var(--navy-primary); margin-bottom: 8px;
}
.s17v2-tsb-desc {
  font-family: 'Times New Roman', serif; font-size: 17px; color: var(--navy-dark); line-height: 1.4;
}
.s17v2-tsb-desc code { font-family: 'Courier New', monospace; font-size: 16px; color: var(--orange-accent); }

.s17v2-ts-arr {
  display: flex; flex-direction: column; align-items: center; width: 260px;
}
.s17v2-ts-arr span {
  font-family: 'Times New Roman', serif; font-size: 16.5px; font-weight: 700; color: var(--navy-primary); font-style: italic; margin-bottom: 6px;
}
.s17v2-tsa-line {
  font-size: 32px; font-family: 'Courier New', monospace; font-weight: bold; color: var(--border-medium); line-height: 1;
}

.s17v2-ts-principle {
  font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-dark);
  text-align: center; line-height: 1.45; max-width: 800px; margin: 8px auto 0;
}
.s17v2-ts-principle strong {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-primary);
  display: inline-block; margin-bottom: 8px;
}

/* Final Statement */
.s17v2-final {
  position: absolute; bottom: 70px; left: 60px; right: 60px;
  border-top: 2px solid var(--navy-primary); padding-top: 20px;
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center; letter-spacing: 0.05em;
}

/* Slide number */
.s17v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 16 (V2): EVIDENCE INGESTION & CRYPTOGRAPHIC FINGERPRINTING
   ========================================================================== */
#slide-16 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s16v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s16v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 50px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s16v2-subtitle {
  position: absolute; top: 110px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}
.s16v2-process {
  position: absolute; top: 154px; left: 60px; right: 60px;
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.1em;
}

/* Colors */
.s16v2-txt-org { color: var(--orange-accent) !important; }
.s16v2-txt-red { color: #D32F2F !important; }
.s16v2-txt-navy { color: var(--navy-primary) !important; }

/* 2 Columns */
.s16v2-2cols {
  position: absolute; top: 190px; left: 60px; right: 60px;
  display: flex; gap: 32px; height: 680px; align-items: stretch;
}
.s16v2-col {
  flex: 1; background: white; border: 1px solid var(--border-medium);
  border-radius: 6px; display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02);
}
.s16v2-col-head {
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); padding: 16px 20px; border-bottom: 1px solid var(--border-light);
  background: rgba(24,34,56,0.01); letter-spacing: 0.04em;
}
.s16v2-col-body {
  flex: 1; padding: 32px 40px; display: flex; flex-direction: column;
}

/* Pipeline */
.s16v2-ep-body {
  align-items: center; justify-content: center; gap: 12px;
}
.s16v2-step {
  text-align: center; display: flex; flex-direction: column; gap: 8px;
}
.s16v2-step-title {
  font-family: 'Courier New', monospace; font-size: 18px; font-weight: 700; color: var(--navy-primary);
}
.s16v2-event-data {
  font-family: 'Courier New', monospace; font-size: 17.5px; color: var(--navy-dark);
  line-height: 1.45; background: var(--bg-alt); padding: 16px 24px; border-radius: 6px;
  border: 1px solid var(--border-light); text-align: left; margin: 8px 0;
}
.s16v2-arr {
  font-size: 32px; font-family: 'Courier New', monospace; font-weight: bold; color: var(--border-medium); line-height: 1; margin: 4px 0;
}
.s16v2-step-desc {
  font-family: 'Times New Roman', serif; font-size: 17.5px; color: var(--navy-dark);
}
.s16v2-step-sha {
  font-family: 'Courier New', monospace; font-size: 22px; font-weight: 700; color: white;
  background: var(--navy-primary); padding: 12px 32px; border-radius: 6px; letter-spacing: 0.05em; margin: 8px 0;
}
.s16v2-hash-val {
  font-family: 'Courier New', monospace; font-size: 18px; font-weight: 700; color: var(--navy-primary);
  background: rgba(255,122,0,0.05); border: 1px solid rgba(255,122,0,0.2); padding: 10px 20px; border-radius: 4px; margin-top: 8px;
}

/* Digest Divergence */
.s16v2-div-body {
  justify-content: center; align-items: center; gap: 64px;
}
.s16v2-compare-grid {
  display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: 600px;
}
.s16v2-cg-col {
  display: flex; flex-direction: column; align-items: center; gap: 20px; flex: 1;
}
.s16v2-cg-title {
  font-family: 'Times New Roman', serif; font-size: 18px; font-weight: 700; color: var(--navy-primary);
}
.s16v2-cg-val {
  font-family: 'Courier New', monospace; font-size: 18px; color: var(--navy-dark);
}
.s16v2-cg-hash {
  font-family: 'Courier New', monospace; font-size: 18px; font-weight: 700; color: var(--navy-primary);
}
.s16v2-cg-mid {
  display: flex; justify-content: center; align-items: center; width: 80px; padding-top: 60px;
}
.s16v2-neq {
  font-family: 'Courier New', monospace; font-size: 48px; font-weight: 700; color: #D32F2F; line-height: 1;
}
.s16v2-div-note {
  font-family: 'Times New Roman', serif; font-size: 17.5px; color: var(--navy-dark);
  text-align: center; border-top: 1px solid var(--border-light); padding-top: 32px; width: 85%; line-height: 1.4;
}

/* Footer Principle */
.s16v2-note {
  position: absolute; top: 910px; left: 60px; right: 60px; text-align: center;
  font-family: 'Times New Roman', serif; font-size: 17px; color: var(--navy-slate); font-style: italic;
}

/* Final Statement */
.s16v2-final {
  position: absolute; bottom: 50px; left: 60px; right: 60px;
  border-top: 2px solid var(--navy-primary); padding-top: 20px;
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center; letter-spacing: 0.05em;
}

/* Slide number */
.s16v2-slide-num {
  position: absolute; right: 60px; bottom: 25px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 15 (V2): EVIDENCE INGESTION & CANONICALIZATION
   ========================================================================== */
#slide-15 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s15v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s15v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 46px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s15v2-subtitle {
  position: absolute; top: 106px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 20px; color: var(--navy-slate);
}

/* Colors & Helpers */
.s15v2-txt-org { color: var(--orange-accent) !important; }
.s15v2-bold { font-weight: 700; color: var(--navy-primary); }

/* Pipeline */
.s15v2-pipeline-head {
  position: absolute; top: 150px; left: 60px; right: 60px;
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-primary); letter-spacing: 0.05em;
}

.s15v2-pipeline-container {
  position: absolute; top: 180px; left: 60px; right: 60px; height: 420px;
  background: white; border: 1px solid var(--border-medium); border-radius: 6px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
}

.s15v2-stage {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  height: 380px; padding: 20px 10px; text-align: center;
}
.s15v2-sep {
  font-size: 32px; font-family: 'Courier New', monospace; font-weight: bold; color: var(--border-medium);
  align-self: center; margin-top: -20px;
}

.s15v2-st-num {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--navy-slate); margin-bottom: 0;
}
.s15v2-st-main {
  font-family: 'Times New Roman', serif; font-size: 22px; font-weight: 700; color: var(--navy-primary); margin-bottom: 0;
}
.s15v2-st-tech {
  font-family: 'Courier New', monospace; font-size: 15.5px; color: var(--navy-dark); line-height: 1.5; min-height: 60px; display: flex; align-items: center; justify-content: center; text-align: center;
}
.s15v2-st-note {
  font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-slate); font-style: italic; margin-top: auto;
  border-top: 1px dashed var(--border-light); padding-top: 16px; width: 100%;
}

.s15v2-hash-box {
  margin-top: 0; border: 1px solid var(--orange-accent); border-radius: 4px; padding: 12px; background: rgba(255,122,0,0.02);
}
.s15v2-hb-label {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--orange-accent); margin-bottom: 6px;
}
.s15v2-hb-val {
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--navy-primary);
}

.s15v2-rec-main { font-family: 'Courier New', monospace; font-size: 20px; }
.s15v2-rec-tech { text-align: left; margin-top: 0; display: block; line-height: 1.6; }

/* Why Canonicalization Matters */
.s15v2-why-container {
  position: absolute; top: 630px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-medium); border-radius: 6px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); display: flex; flex-direction: column; overflow: hidden;
}
.s15v2-why-head {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-primary); padding: 16px 20px; border-bottom: 1px solid var(--border-light);
  background: rgba(24,34,56,0.01); letter-spacing: 0.04em;
}
.s15v2-why-body {
  padding: 32px 40px; display: flex; flex-direction: column; gap: 32px; align-items: center;
}
.s15v2-why-text {
  font-family: 'Times New Roman', serif; font-size: 17px; color: var(--navy-dark); text-align: center; max-width: 960px; line-height: 1.45;
}
.s15v2-why-flow {
  display: flex; align-items: center; justify-content: center; gap: 24px;
  font-family: 'Courier New', monospace; font-size: 15px; color: var(--navy-dark);
  background: var(--bg-alt); padding: 20px 40px; border-radius: 6px; border: 1px solid var(--border-light);
}
.s15v2-why-arr {
  color: var(--border-medium); font-weight: bold; font-size: 24px; margin: 0 8px;
}

/* Final Statement */
.s15v2-final {
  position: absolute; bottom: 50px; left: 60px; right: 60px;
  border-top: 2px solid var(--navy-primary); padding-top: 20px;
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center; letter-spacing: 0.05em;
}

/* Slide number */
.s15v2-slide-num {
  position: absolute; right: 60px; bottom: 25px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 22 (V2): TAMPERING DEMONSTRATION
   ========================================================================== */
#slide-22 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s22v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s22v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 50px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s22v2-subtitle {
  position: absolute; top: 110px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}
.s22v2-scenario {
  position: absolute; top: 154px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 17px; color: var(--navy-dark);
  background: white; border: 1px solid var(--border-medium); border-left: 4px solid var(--orange-accent);
  padding: 12px 18px; border-radius: 4px; box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
.s22v2-scenario strong {
  font-family: 'Courier New', monospace; font-size: 15px; color: var(--orange-accent);
}

/* Colors */
.s22v2-txt-org { color: var(--orange-accent) !important; }
.s22v2-txt-red { color: #D32F2F !important; }
.s22v2-txt-navy { color: var(--navy-primary) !important; }
.s22v2-txt-green { color: #2E7D32 !important; }

/* 3 Columns */
.s22v2-3cols {
  position: absolute; top: 224px; left: 60px; right: 60px;
  display: flex; gap: 24px; height: 450px; align-items: stretch;
}
.s22v2-col {
  flex: 1; background: white; border: 1px solid var(--border-medium);
  border-radius: 6px; display: flex; flex-direction: column; overflow: hidden;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02);
}
.s22v2-col-head {
  font-family: 'Courier New', monospace; font-size: 15.5px; font-weight: 700;
  color: var(--navy-primary); padding: 14px 16px; border-bottom: 1px solid var(--border-light);
  background: rgba(24,34,56,0.01); letter-spacing: 0.04em; text-align: center;
}
.s22v2-col-body {
  flex: 1; padding: 20px 16px; display: flex; flex-direction: column; align-items: center; justify-content: space-between;
}

/* Base formatting */
.s22v2-arr { font-size: 20px; font-family: 'Courier New', monospace; font-weight: bold; color: var(--border-medium); line-height: 1; }
.s22v2-note { font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-slate); text-align: center; line-height: 1.35; font-style: italic; }

/* Stage 1: ORIGINAL EVIDENCE */
.s22v2-status-anchored {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: white;
  background: #2E7D32; padding: 6px 14px; border-radius: 4px; letter-spacing: 0.05em; margin-bottom: 4px;
}
.s22v2-event-data {
  font-family: 'Courier New', monospace; font-size: 15.5px; color: var(--navy-dark);
  line-height: 1.45; text-align: center;
}
.s22v2-ppm-orig {
  font-family: 'Courier New', monospace; font-size: 24px; font-weight: 700; color: var(--navy-primary);
}
.s22v2-hash-box {
  border: 1px solid var(--border-medium); border-radius: 4px; padding: 8px 14px; background: rgba(24,34,56,0.02); text-align: center;
}
.s22v2-hb-label {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--navy-primary); margin-bottom: 4px;
}
.s22v2-hb-val {
  font-family: 'Courier New', monospace; font-size: 17px; font-weight: 700; color: var(--navy-primary);
}

/* Stage 2: LOCAL MODIFICATION */
.s22v2-ppm-flow {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.s22v2-ppm-mod {
  font-family: 'Courier New', monospace; font-size: 30px; font-weight: 700;
}
.s22v2-delta {
  font-family: 'Courier New', monospace; font-size: 15.5px; font-weight: 700; color: #D32F2F; margin: -4px 0 4px 0;
}
.s22v2-sql {
  font-family: 'Courier New', monospace; font-size: 15px; color: #ECEFF4;
  background: #2E3440; padding: 14px; border-radius: 4px; text-align: left; width: 95%; line-height: 1.4;
}
.s22v2-status-changed {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700;
  border: 1px solid #D32F2F; padding: 6px 14px; border-radius: 4px; letter-spacing: 0.05em;
}

/* Stage 3: FORENSIC RECHECK */
.s22v2-reconstruct {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--navy-slate); text-align: center; line-height: 1.25;
}
.s22v2-hc-grid {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.s22v2-hc-label {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--navy-primary);
}
.s22v2-hc-val {
  font-family: 'Courier New', monospace; font-size: 17px; font-weight: 700; color: var(--navy-primary);
}
.s22v2-neq {
  font-family: 'Courier New', monospace; font-size: 36px; font-weight: 700; line-height: 1; margin: 4px 0;
}
.s22v2-tampered {
  font-family: 'Courier New', monospace; font-size: 32px; font-weight: 700; border: 2px solid #D32F2F; padding: 10px 24px; border-radius: 6px; letter-spacing: 0.05em; background: rgba(211,47,47,0.05);
}

/* Role Strip */
.s22v2-role-strip {
  position: absolute; top: 705px; left: 60px; right: 60px; height: 155px;
  background: white; border: 1px solid var(--border-medium); border-radius: 6px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); display: flex; overflow: hidden;
}
.s22v2-rs-head {
  font-family: 'Courier New', monospace; font-size: 15.5px; font-weight: 700;
  color: var(--navy-primary); padding: 16px; border-right: 1px solid var(--border-light);
  background: rgba(24,34,56,0.01); letter-spacing: 0.04em; writing-mode: vertical-rl; transform: rotate(180deg);
  display: flex; align-items: center; justify-content: center; width: 34px;
}
.s22v2-rs-body {
  padding: 16px 30px; display: flex; flex-direction: column; gap: 14px; flex: 1; justify-content: center;
}
.s22v2-rs-roles {
  font-family: 'Courier New', monospace; font-size: 16px; color: var(--navy-dark); line-height: 1.5;
}
.s22v2-rs-roles strong { color: var(--navy-primary); }
.s22v2-rs-roles code { color: var(--orange-accent); }
.s22v2-rs-main {
  font-family: 'Times New Roman', serif; font-size: 18px; font-weight: 700; color: var(--navy-primary);
}
.s22v2-rs-caveat {
  font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-slate); font-style: italic;
  border-top: 1px solid var(--border-light); padding-top: 10px; margin-top: 4px;
}
.s22v2-rs-caveat strong { color: var(--navy-primary); font-style: normal; }

/* Final Statement */
.s22v2-final {
  position: absolute; bottom: 85px; left: 60px; right: 60px;
  border-top: 2px solid var(--navy-primary); padding-top: 20px;
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center; letter-spacing: 0.05em;
}

/* Slide number */
.s22v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 20 (V2): FROM VERIFICATION TO FORENSIC FINDING
   ========================================================================== */
#slide-20 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s20v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s20v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 50px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s20v2-subtitle {
  position: absolute; top: 110px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Principle Strip */
.s20v2-principle {
  position: absolute; top: 154px; left: 60px; right: 60px;
  background: white; border: 1px solid var(--border-medium); border-left: 4px solid var(--navy-primary);
  padding: 18px 24px; border-radius: 4px; box-shadow: 0 2px 4px rgba(0,0,0,0.02);
  font-family: 'Times New Roman', serif; font-size: 18px; color: var(--navy-dark); text-align: center;
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 6px;
}
.s20v2-principle strong {
  font-family: 'Courier New', monospace; font-size: 14.5px; color: var(--navy-primary);
}

/* Colors */
.s20v2-txt-red { color: #D32F2F !important; font-weight: 700; }
.s20v2-txt-amb { color: #F57C00 !important; font-weight: 700; }
.s20v2-res-red { font-weight: 700; color: #D32F2F; border: 1px solid #D32F2F; padding: 6px 14px; border-radius: 4px; background: rgba(211,47,47,0.05); }
.s20v2-res-amb { font-weight: 700; color: #F57C00; border: 1px solid #F57C00; padding: 6px 14px; border-radius: 4px; background: rgba(245,124,0,0.05); }
.s20v2-res-grn { font-weight: 700; color: #2E7D32; border: 1px solid #2E7D32; padding: 6px 14px; border-radius: 4px; background: rgba(46,125,50,0.05); }

/* Common Box */
.s20v2-box-head {
  font-family: 'Courier New', monospace; font-size: 15.5px; font-weight: 700;
  color: var(--navy-primary); padding: 12px 18px; border-bottom: 1px solid var(--border-light);
  background: rgba(24,34,56,0.01); letter-spacing: 0.04em;
}

/* DECISION HIERARCHY */
.s20v2-hierarchy {
  position: absolute; top: 250px; left: 60px; right: 60px; height: 355px;
  background: white; border: 1px solid var(--border-medium); border-radius: 6px; overflow: hidden;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); display: flex; flex-direction: column;
}
.s20v2-h-body { flex: 1; padding: 20px; display: flex; justify-content: center; align-items: center; }
.s20v2-h-flow { display: flex; align-items: center; gap: 36px; }
.s20v2-hf-node { font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700; color: var(--navy-primary); text-align: center; border: 1px solid var(--border-medium); padding: 14px 22px; border-radius: 4px; background: var(--bg-alt); }
.s20v2-hf-arr { font-family: 'Courier New', monospace; font-size: 32px; font-weight: bold; color: var(--border-medium); line-height: 1; }

.s20v2-hf-core { display: flex; flex-direction: column; align-items: center; border: 2px solid var(--orange-accent); border-radius: 6px; padding: 16px 28px; background: rgba(255,122,0,0.02); }
.s20v2-hf-main { font-family: 'Courier New', monospace; font-size: 18.5px; font-weight: 700; color: var(--navy-primary); margin-bottom: 24px; }
.s20v2-hf-branches { display: flex; gap: 80px; align-items: flex-start; }
.s20v2-hf-branch { display: flex; flex-direction: column; align-items: center; }
.s20v2-hf-branch-right { margin-top: -10px; }
.s20v2-hfb-cond { font-family: 'Times New Roman', serif; font-size: 16.5px; font-style: italic; color: var(--navy-slate); font-weight: 700; }
.s20v2-hfb-arr { font-family: 'Courier New', monospace; font-size: 24px; font-weight: bold; color: var(--border-medium); line-height: 1; margin: 6px 0; }
.s20v2-hfb-node { font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-primary); border: 1px solid var(--border-medium); padding: 10px 16px; border-radius: 4px; background: white; margin-bottom: 16px; }

.s20v2-hfb-subbranches { display: flex; gap: 36px; }
.s20v2-hfb-sub { display: flex; flex-direction: column; align-items: center; }
.s20v2-hfb-res { font-family: 'Courier New', monospace; font-size: 16px; }

/* PRIMARY FORENSIC FINDINGS */
.s20v2-matrix {
  position: absolute; top: 620px; left: 60px; width: 850px; height: 260px;
  background: white; border: 1px solid var(--border-medium); border-radius: 6px; overflow: hidden;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); display: flex; flex-direction: column;
}
.s20v2-m-body { padding: 20px 24px; flex: 1; display: flex; flex-direction: column; justify-content: space-between; }
.s20v2-m-table { width: 100%; border-collapse: collapse; }
.s20v2-m-table td { font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-dark); padding: 16px 0; border-bottom: 1px solid var(--border-light); }
.s20v2-m-table tr:last-child td { border-bottom: none; }
.s20v2-m-table span { font-family: 'Courier New', monospace; font-size: 15.5px; }
.s20v2-m-note { font-family: 'Times New Roman', serif; font-size: 16px; font-weight: 700; color: var(--navy-primary); border-top: 1px dashed var(--border-light); padding-top: 16px; text-align: center; margin-top: auto; }

/* SPECIAL VERIFICATION STATES */
.s20v2-special {
  position: absolute; top: 620px; right: 60px; left: 934px; height: 260px;
  background: white; border: 1px solid var(--border-medium); border-radius: 6px; overflow: hidden;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); display: flex; flex-direction: column;
}
.s20v2-s-body { padding: 24px 28px; flex: 1; display: flex; flex-direction: column; justify-content: space-between; }
.s20v2-s-grid { display: flex; flex-direction: column; gap: 26px; }
.s20v2-s-col { font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-dark); line-height: 1.5; }
.s20v2-s-col strong { font-family: 'Courier New', monospace; font-size: 15.5px; color: var(--navy-slate); }
.s20v2-s-note { font-family: 'Times New Roman', serif; font-size: 16px; font-weight: 700; color: var(--navy-primary); text-align: center; font-style: italic; border-top: 1px dashed var(--border-light); padding-top: 16px; margin-top: auto; }

/* Final Statement */
.s20v2-final {
  position: absolute; bottom: 70px; left: 60px; right: 60px;
  border-top: 2px solid var(--navy-primary); padding-top: 20px;
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700;
  color: var(--navy-primary); text-align: center; letter-spacing: 0.05em;
}

/* Slide number */
.s20v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 21 (V2): THREAT SCENARIOS TESTED
   ========================================================================== */
#slide-21 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s21v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s21v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 50px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s21v2-subtitle {
  position: absolute; top: 110px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

.s21v2-section-head {
  position: absolute; top: 154px; left: 60px; right: 60px;
  font-family: 'Courier New', monospace; font-size: 15.5px; font-weight: 700;
  color: var(--navy-primary); letter-spacing: 0.05em; border-bottom: 2px solid var(--navy-primary);
  padding-bottom: 6px;
}

/* Colors */
.s21v2-txt-grn { color: #2E7D32 !important; font-size: 15px; }
.s21v2-bold { font-weight: 700; }
.s21v2-tag { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; padding: 6px 10px; border-radius: 4px; border: 1px solid transparent; display: inline-block; }
.s21v2-tag-grn { color: #2E7D32; border-color: #2E7D32; background: rgba(46,125,50,0.05); }
.s21v2-tag-red { color: #D32F2F; border-color: #D32F2F; background: rgba(211,47,47,0.05); }
.s21v2-tag-amb { color: #F57C00; border-color: #F57C00; background: rgba(245,124,0,0.05); }
.s21v2-tag-nav { color: var(--navy-primary); border-color: var(--navy-primary); background: rgba(24,34,56,0.05); }

/* Matrix Container */
.s21v2-matrix-container {
  position: absolute; top: 195px; left: 60px; right: 60px; height: 535px;
  background: white; border: 1px solid var(--border-medium); border-radius: 6px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); overflow: hidden;
}
.s21v2-table { width: 100%; height: 100%; border-collapse: collapse; text-align: left; }
.s21v2-table th {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-primary);
  padding: 14px 16px; border-bottom: 1px solid var(--border-medium); background: rgba(24,34,56,0.02);
  letter-spacing: 0.04em; vertical-align: middle;
}
.s21v2-table td {
  font-family: 'Times New Roman', serif; font-size: 15.5px; color: var(--navy-dark);
  padding: 16px 16px; border-bottom: 1px solid var(--border-light); line-height: 1.35; vertical-align: middle;
}
.s21v2-table td strong { font-size: 16.5px; color: var(--navy-primary); }
.s21v2-table td code { font-family: 'Courier New', monospace; font-size: 14.5px; color: var(--orange-accent); }
.s21v2-hero-row { background: rgba(255,122,0,0.04); }
.s21v2-hero-lbl { font-family: 'Courier New', monospace; font-size: 11.5px; font-weight: 700; color: var(--orange-accent); letter-spacing: 0.05em; background: rgba(255,122,0,0.1); padding: 3px 6px; border-radius: 4px; display: inline-block; margin-top: 6px; }

/* Summary Strip */
.s21v2-summary-strip {
  position: absolute; top: 750px; left: 60px; right: 60px;
  font-family: 'Courier New', monospace; font-size: 15.5px; color: var(--navy-dark);
  background: var(--bg-alt); border: 1px solid var(--border-light); padding: 14px 16px;
  border-radius: 4px; text-align: center;
}
.s21v2-summary-strip strong { font-weight: 700; color: var(--navy-primary); font-size: 16px; }

/* Notes */
.s21v2-notes {
  position: absolute; top: 815px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-dark);
  text-align: center; line-height: 1.5;
}
.s21v2-notes strong { font-family: 'Times New Roman', serif; font-weight: 700; color: var(--navy-primary); }
.s21v2-scope { font-size: 15px; color: var(--navy-slate); font-style: italic; display: block; margin-top: 6px; }
.s21v2-scope strong { color: var(--navy-primary); font-style: normal; }

/* Final Statement */
.s21v2-final {
  position: absolute; bottom: 85px; left: 60px; right: 60px;
  border-top: 2px solid var(--navy-primary); padding-top: 20px;
  font-family: 'Courier New', monospace; font-size: 16.5px; font-weight: 700;
  color: var(--navy-primary); text-align: center; letter-spacing: 0.05em; text-transform: uppercase;
}

/* Slide number */
.s21v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 23 (V2): IMPLEMENTATION & VALIDATION RESULTS
   ========================================================================== */
#slide-23 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s23v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s23v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s23v2-subtitle {
  position: absolute; top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* Colors */
.s23v2-txt-grn { color: #2E7D32 !important; }
.s23v2-bold { font-weight: 700; }
.s23v2-tag { font-family: 'Courier New', monospace; font-size: 12.5px; font-weight: 700; padding: 4px 8px; border-radius: 4px; border: 1px solid transparent; display: inline-block; }
.s23v2-tag-grn { color: #2E7D32; border-color: #2E7D32; background: rgba(46,125,50,0.05); }
.s23v2-tag-red { color: #D32F2F; border-color: #D32F2F; background: rgba(211,47,47,0.05); }
.s23v2-tag-amb { color: #F57C00; border-color: #F57C00; background: rgba(245,124,0,0.05); }
.s23v2-tag-nav { color: var(--navy-primary); border-color: var(--navy-primary); background: rgba(24,34,56,0.05); }

/* Metrics Layer */
.s23v2-metrics {
  position: absolute; top: 144px; left: 60px; right: 60px; height: 160px;
  display: flex; gap: 24px;
}
.s23v2-metric-box {
  flex: 1; background: white; border: 1px solid var(--border-medium); border-radius: 5px;
  padding: 16px 20px; display: flex; flex-direction: column; align-items: center; justify-content: space-between;
  text-align: center; box-shadow: 0 2px 4px rgba(12,30,54,0.02);
}
.s23v2-mb-num { font-family: 'Courier New', monospace; font-size: 28px; font-weight: 700; color: var(--navy-primary); }
.s23v2-mb-lbl { font-family: 'Courier New', monospace; font-size: 13px; font-weight: 700; color: var(--orange-accent); letter-spacing: 0.05em; margin: 6px 0; }
.s23v2-mb-desc { font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark); line-height: 1.3; flex: 1; display: flex; align-items: center; justify-content: center; }
.s23v2-mb-stat { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; margin-top: 6px; }

/* Table Layer */
.s23v2-table-container {
  position: absolute; top: 325px; left: 60px; right: 60px; height: 450px;
  background: white; border: 1px solid var(--border-medium); border-radius: 5px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); overflow: hidden; display: flex; flex-direction: column;
}
.s23v2-tc-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 20px; background: rgba(24,34,56,0.02); border-bottom: 1px solid var(--border-light);
}
.s23v2-tc-head-l { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--navy-primary); letter-spacing: 0.04em; }
.s23v2-tc-sub { font-family: 'Times New Roman', serif; font-size: 14px; font-style: italic; color: var(--navy-slate); font-weight: normal; letter-spacing: 0; }
.s23v2-tc-head-r { font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--navy-primary); }

.s23v2-table { width: 100%; border-collapse: collapse; text-align: left; }
.s23v2-table th {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700; color: var(--navy-slate);
  padding: 10px 20px; border-bottom: 1px solid var(--border-medium);
}
.s23v2-table td {
  font-family: 'Times New Roman', serif; font-size: 15.5px; color: var(--navy-dark);
  padding: 10px 20px; border-bottom: 1px solid #E0E4E9;
}
.s23v2-table tr:last-child td { border-bottom: none; }

.s23v2-tc-foot {
  font-family: 'Times New Roman', serif; font-size: 15.5px; font-weight: 700; color: var(--navy-primary);
  text-align: center; padding: 16px; border-top: 2px solid var(--navy-primary); background: rgba(24,34,56,0.01);
  margin-top: auto;
}

/* Key Finding Panel Layer */
.s23v2-kvf-panel {
  position: absolute; top: 800px; left: 60px; right: 60px; height: 155px;
  background: white; border: 1px solid var(--border-medium); border-radius: 5px;
  box-shadow: 0 2px 4px rgba(12,30,54,0.02); display: flex; flex-direction: column; overflow: hidden;
}
.s23v2-kvf-main {
  display: flex; flex: 1; border-bottom: 1px solid var(--border-light);
}
.s23v2-kvf-col { padding: 16px 20px; display: flex; flex-direction: column; justify-content: center; }
.s23v2-kvf-col-l { flex: 2; border-right: 1px solid var(--border-light); }
.s23v2-kvf-col-r { flex: 1; }

.s23v2-kvf-head { font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700; color: var(--orange-accent); margin-bottom: 8px; letter-spacing: 0.04em; }
.s23v2-kvf-stat { font-family: 'Times New Roman', serif; font-size: 16.5px; font-weight: 700; color: var(--navy-primary); line-height: 1.25; }
.s23v2-kvf-stat code { font-family: 'Courier New', monospace; font-size: 14.5px; color: var(--navy-primary); }
.s23v2-kvf-desc { font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-slate); line-height: 1.35; margin-top: 8px; }
.s23v2-kvf-desc code { font-family: 'Courier New', monospace; font-size: 13.5px; }

.s23v2-kvf-scope {
  padding: 10px 20px; font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-slate);
  background: var(--bg-alt); font-style: italic;
}
.s23v2-kvf-scope strong { color: var(--navy-primary); font-style: normal; }

/* Slide number */
.s23v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 24 (V2): CONTRIBUTION & FUTURE DIRECTION
   ========================================================================== */
#slide-24 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s24v2-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s24v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s24v2-subtitle {
  position: absolute; top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* 3 Columns */
.s24v2-3cols {
  position: absolute; top: 154px; left: 60px; right: 60px; height: 560px;
  display: flex; gap: 24px;
}
.s24v2-col {
  flex: 1; border: 1px solid var(--border-medium); border-radius: 5px;
  display: flex; flex-direction: column; overflow: hidden; background: white;
}
.s24v2-col-nav { border-top: 3px solid var(--navy-primary); }
.s24v2-col-org { border-top: 3px solid var(--orange-accent); }

.s24v2-col-head {
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700;
  padding: 14px 20px; border-bottom: 1px solid var(--border-light);
  letter-spacing: 0.04em; background: rgba(24,34,56,0.01);
}
.s24v2-ch-nav { color: var(--navy-primary); }
.s24v2-ch-org { color: var(--orange-accent); }

.s24v2-col-body {
  padding: 24px 20px; display: flex; flex-direction: column; gap: 34px; flex: 1;
}

.s24v2-item-head {
  font-family: 'Courier New', monospace; font-size: 14px; color: var(--navy-slate); margin-bottom: 12px;
}
.s24v2-item-head strong { font-family: 'Times New Roman', serif; font-size: 16.5px; color: var(--navy-primary); font-weight: 700; }
.s24v2-item-desc {
  font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-dark); line-height: 1.4;
}
.s24v2-item-desc code { font-family: 'Courier New', monospace; font-size: 13.5px; color: var(--orange-accent); }
.s24v2-tiny { font-size: 13px; color: var(--navy-slate); font-style: italic; }

/* Core Contribution Panel */
.s24v2-core-panel {
  position: absolute; top: 740px; left: 60px; right: 60px; height: 250px;
  background: white; border: 1px solid var(--border-medium); border-radius: 5px;
  box-shadow: 0 2px 8px rgba(12,30,54,0.02); display: flex; flex-direction: column; overflow: hidden;
}
.s24v2-cp-head {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--navy-primary);
  padding: 12px 20px; border-bottom: 1px solid var(--border-light); background: rgba(24,34,56,0.01); letter-spacing: 0.04em;
}
.s24v2-cp-main {
  margin-top: auto;
  padding: 0 40px; font-family: 'Times New Roman', serif; font-size: 18.5px; font-weight: 700; color: var(--navy-primary); line-height: 1.45; text-align: center;
}
.s24v2-cp-sub {
  margin-bottom: auto; margin-top: 16px;
  padding: 0 40px; font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-dark); text-align: center; font-style: italic;
}
.s24v2-cp-final {
  padding: 16px; text-align: center; font-family: var(--font-heading); font-size: 21px; font-weight: 700;
  color: var(--navy-primary); background: rgba(24,34,56,0.03); border-top: 1px solid var(--border-light); letter-spacing: 0.02em;
}

/* Slide number */
.s24v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 14 (V4): IOT EDGE IMPLEMENTATION
   ========================================================================== */
#slide-14 { background: var(--slide-bg); overflow: hidden; }

/* Header */
.s14v4-eyebrow {
  position: absolute; top: 28px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s14v4-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 44px; font-weight: 700;
  color: var(--navy-primary); line-height: 1.05; margin: 0;
}
.s14v4-subtitle {
  position: absolute; top: 104px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

/* 3 Columns */
.s14v4-3cols {
  position: absolute; top: 154px; left: 60px; right: 60px; height: 530px;
  display: flex; gap: 20px;
}
.s14v4-col {
  border: 1px solid var(--border-medium); border-radius: 5px;
  display: flex; flex-direction: column; overflow: hidden; background: white;
  box-shadow: 0 2px 4px rgba(12,30,54,0.02);
}
.s14v4-col-nav { border-top: 3px solid var(--navy-primary); }
.s14v4-col-org { border-top: 3px solid var(--orange-accent); }

.s14v4-col-head {
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700;
  padding: 10px 16px; border-bottom: 1px solid var(--border-light);
  letter-spacing: 0.04em; background: rgba(24,34,56,0.01);
}
.s14v4-ch-nav { color: var(--navy-primary); }
.s14v4-ch-org { color: var(--orange-accent); }

.s14v4-col-sub {
  font-family: 'Times New Roman', serif; font-size: 14px; color: var(--navy-slate);
  padding: 8px 16px; border-bottom: 1px solid var(--border-light); text-align: center; font-style: italic;
  background: var(--bg-alt);
}

.s14v4-col-body { padding: 16px; display: flex; flex-direction: column; flex: 1; justify-content: flex-start; }
.s14v4-cb-center { align-items: center; text-align: center; }

/* General Table */
.s14v4-table { width: 100%; border-collapse: collapse; text-align: left; }
.s14v4-table th {
  font-family: 'Courier New', monospace; font-size: 13.5px; font-weight: 700; color: var(--navy-slate);
  padding: 8px 6px; border-bottom: 1px solid var(--border-medium); letter-spacing: 0.02em;
}
.s14v4-table td {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark);
  padding: 8px 6px; border-bottom: 1px solid #E0E4E9;
}
.s14v4-table td code { font-family: 'Courier New', monospace; font-size: 13px; color: var(--orange-accent); }
.s14v4-table td strong { color: var(--navy-primary); font-family: 'Courier New', monospace; font-size: 14px; }
.s14v4-table tr:last-child td { border-bottom: none; }

.s14v4-table-rules th, .s14v4-table-rules td { padding: 6px; font-size: 14px; }
.s14v4-table-rules td code { color: var(--navy-primary); font-weight: 700; }

/* Col 1 Content */
.s14v4-tamp-line {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-dark);
  text-align: center; margin-top: 12px; font-style: italic;
}
.s14v4-role-box {
  margin-top: auto; border: 1px solid var(--navy-primary); border-radius: 4px; padding: 12px;
  background: rgba(24,34,56,0.02); text-align: center;
}
.s14v4-rb-head { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-primary); letter-spacing: 0.04em; margin-bottom: 6px; }
.s14v4-rb-text { font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-dark); font-weight: 700; line-height: 1.3; }

/* Col 2 Content */
.s14v4-flow { display: flex; flex-direction: column; align-items: center; margin-top: 4px; }
.s14v4-flow-box {
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-primary);
  border: 1px solid var(--border-medium); padding: 8px 16px; border-radius: 4px; background: white;
  width: 160px; box-shadow: 0 1px 3px rgba(12,30,54,0.05);
}
.s14v4-flow-arr { font-size: 16px; color: var(--orange-accent); font-weight: 700; margin: 4px 0; line-height: 1; }
.s14v4-rtos-line {
  font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-slate);
  margin-top: 16px; font-style: italic; line-height: 1.3;
}
.s14v4-rules-box {
  margin-top: auto; border: 1px solid var(--border-medium); border-radius: 4px; padding: 10px; width: 100%;
}

/* Col 3 Content */
.s14v4-evt-box {
  border: 1px solid var(--border-medium); border-radius: 4px; background: #FDFDFD; padding: 12px 16px;
  width: 100%; text-align: left;
}
.s14v4-evt-id { font-family: 'Courier New', monospace; font-size: 22px; font-weight: 700; color: var(--orange-accent); border-bottom: 1px solid var(--border-light); padding-bottom: 8px; margin-bottom: 8px; text-align: center; }
.s14v4-evt-row { display: flex; justify-content: space-between; font-family: 'Courier New', monospace; font-size: 14px; margin-bottom: 4px; }
.s14v4-evt-row span:first-child { color: var(--navy-slate); }
.s14v4-evt-row span:last-child { color: var(--navy-primary); font-weight: 700; }
.s14v4-txt-red { color: #D32F2F !important; }

.s14v4-json-box {
  margin-top: 16px; background: #182238; border-radius: 4px; padding: 12px; width: 100%;
  text-align: left;
}
.s14v4-json-box pre { margin: 0; }
.s14v4-json-box code { font-family: 'Courier New', monospace; font-size: 13.5px; color: #FFF; line-height: 1.4; }

.s14v4-pub-line {
  margin-top: auto; font-family: 'Times New Roman', serif; font-size: 14.5px; color: var(--navy-slate); font-style: italic;
}

/* Bottom Strips */
.s14v4-mqtt-strip {
  position: absolute; top: 698px; left: 60px; right: 60px; height: 38px;
  background: var(--bg-alt); border: 1px solid var(--border-light); border-radius: 4px;
  display: flex; justify-content: space-between; align-items: center; padding: 0 16px;
}
.s14v4-ms-l { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--navy-primary); letter-spacing: 0.04em; }
.s14v4-ms-r code { font-family: 'Courier New', monospace; font-size: 14px; color: var(--orange-accent); font-weight: 700; }

.s14v4-principle-strip {
  position: absolute; top: 750px; left: 60px; right: 60px; height: 100px;
  border: 1px solid var(--navy-primary); border-radius: 5px; background: white;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  box-shadow: 0 2px 4px rgba(12,30,54,0.02); padding: 0 20px; text-align: center;
}
.s14v4-ps-head { font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--orange-accent); letter-spacing: 0.04em; margin-bottom: 6px; }
.s14v4-ps-text { font-family: 'Times New Roman', serif; font-size: 16px; font-weight: 700; color: var(--navy-primary); line-height: 1.4; }

/* Slide number */
.s14v4-slide-num {
  position: absolute; right: 60px; bottom: 16px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 06 (V2): IoT SECURITY
   ========================================================================== */
#slide-06 { background: var(--slide-bg); overflow: hidden; }

.s6v2-title {
  position: absolute; top: 50px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 46px; font-weight: 700;
  color: var(--navy-primary); margin: 0;
}
.s6v2-subtitle {
  position: absolute; top: 110px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

.s6v2-container {
  position: absolute; top: 160px; left: 60px; right: 60px; 
  display: flex; flex-direction: column; gap: 20px;
}

/* 3 Columns */
.s6v2-cols-wrapper {
  display: flex; justify-content: space-between; gap: 24px; height: 540px;
}
.s6v2-col {
  flex: 1; border: 1px solid var(--border-medium); border-radius: 5px; background: #fff;
  display: flex; flex-direction: column; box-shadow: 0 1px 4px rgba(12,30,54,0.03);
}
.s6v2-col-header {
  font-family: 'Courier New', monospace; font-size: 20px; font-weight: 700; color: var(--navy-primary);
  background: rgba(24,34,56,0.03); padding: 18px 24px; border-bottom: 1px solid var(--border-light);
  letter-spacing: 0.03em;
}

.s6v2-section-head {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-slate);
  margin: 24px 24px 12px 24px; letter-spacing: 0.04em;
}
.s6v2-bt-org { border-top: 1px solid var(--orange-accent); padding-top: 24px; margin-top: auto; }
.s6v2-txt-org { color: var(--orange-accent) !important; }

.s6v2-list {
  list-style: none; margin: 0 24px 0 24px; padding: 0;
}
.s6v2-list li {
  font-family: 'Times New Roman', serif; font-size: 18px; color: var(--navy-dark);
  margin-bottom: 12px; padding-left: 16px; position: relative; line-height: 1.3;
}
.s6v2-list li::before {
  content: '•'; position: absolute; left: 0; color: var(--navy-slate); font-weight: bold;
}

.s6v2-impact {
  font-family: 'Times New Roman', serif; font-size: 18px; color: var(--navy-primary);
  margin: 0 24px 24px 24px; line-height: 1.4; padding: 14px; background: rgba(24,34,56,0.03); border-radius: 4px; border-left: 3px solid var(--navy-slate);
}

/* Requirements */
.s6v2-req-wrapper {
  border: 1px solid var(--border-medium); border-radius: 5px; background: #fff;
  padding: 24px 40px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  box-shadow: 0 1px 4px rgba(12,30,54,0.03);
}
.s6v2-req-label {
  font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-slate);
  letter-spacing: 0.05em; margin-bottom: 30px;
}
.s6v2-req-items {
  display: flex; align-items: center; gap: 30px; margin-bottom: 30px;
}
.s6v2-req-normal {
  font-family: 'Courier New', monospace; font-size: 20px; font-weight: 700; color: var(--navy-slate);
}
.s6v2-req-dot {
  font-size: 24px; color: var(--border-dark);
}
.s6v2-req-hl-box {
  display: flex; flex-direction: column; align-items: center; border: 1px solid var(--orange-accent);
  border-radius: 4px; padding: 18px 24px 10px 24px; background: rgba(217,83,30,0.05); position: relative;
}
.s6v2-req-cf {
  position: absolute; top: -16px; background: #fff; padding: 0 8px;
  font-family: 'Courier New', monospace; font-size: 11px; font-weight: 700; color: var(--orange-accent);
}
.s6v2-req-hl {
  font-family: 'Courier New', monospace; font-size: 20px; font-weight: 700; color: var(--orange-accent);
}
.s6v2-req-def {
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-dark);
}
.s6v2-req-def strong { color: var(--navy-primary); }

/* Transition */
.s6v2-transition-wrapper {
  border: 1px solid var(--border-medium); border-radius: 5px; background: rgba(24,34,56,0.02);
  padding: 16px 40px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  border-left: 4px solid var(--navy-primary);
}
.s6v2-flow {
  font-family: 'Courier New', monospace; font-size: 24px; font-weight: 700; color: var(--navy-primary);
  margin-bottom: 10px; display: flex; align-items: center; gap: 16px; letter-spacing: 0.03em;
}
.s6v2-trans-desc {
  font-family: 'Times New Roman', serif; font-size: 20px; color: var(--navy-dark); text-align: center;
}

/* Slide Number */
.s6v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 13 (V4): SYSTEM ARCHITECTURE
   ========================================================================== */
#slide-13 { background: #FAF9F6; overflow: hidden; }

.s13v4-eyebrow {
  position: absolute; top: 40px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s13v4-title {
  position: absolute; top: 65px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 48px; font-weight: 700;
  color: var(--navy-primary); margin: 0; line-height: 1.1;
}
.s13v4-subtitle {
  position: absolute; top: 125px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 20px; color: var(--navy-slate);
}

.s13v4-main-container {
  position: absolute; top: 185px; left: 60px; right: 60px;
  border: 1px solid var(--border-medium); border-radius: 5px;
  background: #FFF; box-shadow: 0 2px 10px rgba(12,30,54,0.03);
  display: flex; flex-direction: column; overflow: hidden;
}

.s13v4-mc-head {
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700;
  color: var(--navy-primary); padding: 12px 24px; background: rgba(24,34,56,0.03);
  border-bottom: 1px solid var(--border-light); letter-spacing: 0.04em;
}

.s13v4-row-top {
  display: flex; align-items: stretch; justify-content: space-between; padding: 25px 30px 0 30px; gap: 15px;
}
.s13v4-row-bot {
  display: flex; align-items: stretch; justify-content: center; padding: 0 30px 30px 30px; gap: 20px;
}

.s13v4-stage {
  flex: 1; border: 1px solid var(--border-medium); border-radius: 5px; background: #fff;
  display: flex; flex-direction: column; padding: 18px 24px; box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
.s13v4-row-bot .s13v4-stage {
  flex: 0 0 600px;
}

.s13v4-stage-nav { border-top: 3px solid var(--navy-primary); }
.s13v4-stage-org { border-top: 3px solid var(--orange-accent); }
.s13v4-stage-navorg { border-top: 3px solid var(--orange-accent); }

.s13v4-arr {
  font-family: 'Courier New', monospace; font-size: 32px; font-weight: 700; color: var(--orange-accent);
  padding: 0 10px; display: flex; align-items: center; justify-content: center;
}

.s13v4-s-num { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--navy-slate); margin-bottom: 2px; }
.s13v4-s-title { font-family: 'Times New Roman', serif; font-size: 21px; font-weight: 700; color: var(--navy-primary); border-bottom: 1px solid var(--border-light); padding-bottom: 8px; margin-bottom: 12px; }
.s13v4-txt-org { color: var(--orange-accent) !important; }

.s13v4-s-role { font-family: 'Times New Roman', serif; font-size: 15px; color: var(--navy-dark); margin-bottom: 12px; line-height: 1.3; }
.s13v4-s-role strong { font-family: 'Courier New', monospace; font-size: 13px; color: var(--navy-slate); display: block; margin-bottom: 2px; }

.s13v4-s-tech { font-family: 'Courier New', monospace; font-size: 14px; color: var(--navy-dark); margin-bottom: auto; line-height: 1.35; }
.s13v4-s-tech strong { font-family: 'Courier New', monospace; font-size: 13px; color: var(--navy-slate); display: block; margin-bottom: 2px; }

.s13v4-s-out { font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-primary); border-top: 1px solid var(--border-light); padding-top: 10px; margin-top: auto; font-weight: 700;}
.s13v4-s-out strong { font-family: 'Courier New', monospace; font-size: 13px; color: var(--navy-slate); display: block; margin-bottom: 2px; }

.s13v4-tiny { font-size: 12px; color: var(--navy-slate); font-weight: normal; margin-left: 6px;}

.s13v4-anno-text {
  text-align: center; font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-primary); font-weight: 700;
  margin-top: 25px; margin-bottom: 5px;
}

.s13v4-trust-boundary {
  display: flex; align-items: center; justify-content: center; margin: 5px 60px 25px 60px;
}
.s13v4-tb-line { height: 1px; background: var(--orange-accent); flex: 1; opacity: 0.3; }
.s13v4-tb-text { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--orange-accent); padding: 0 20px; letter-spacing: 0.05em; }

.s13v4-s-recon {
  font-family: 'Courier New', monospace; font-size: 14px; color: var(--navy-dark);
  text-align: center; margin: auto 0; background: rgba(24,34,56,0.02); padding: 10px; border-radius: 4px; border: 1px solid var(--border-light);
  line-height: 1.4;
}
.s13v4-hlha { font-weight: 700; color: var(--orange-accent); margin-top: 6px; }

.s13v4-verdicts { text-align: center; }
.s13v4-v-intact { color: var(--status-intact); }
.s13v4-v-anom { color: var(--status-anomaly); }
.s13v4-v-tamp { color: var(--status-tampered); }
.s13v4-v-sep { color: var(--border-dark); margin: 0 8px; font-weight: normal; }

.s13v4-principle-strip {
  position: absolute; bottom: 85px; left: 60px; right: 60px;
  border: 1px solid var(--border-medium); border-radius: 5px; background: #fff;
  display: flex; flex-direction: column; padding: 18px 24px;
  border-left: 4px solid var(--navy-primary); box-shadow: 0 1px 4px rgba(12,30,54,0.03);
}
.s13v4-ps-head { font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-slate); margin-bottom: 6px; letter-spacing: 0.05em; }
.s13v4-ps-text { font-family: 'Times New Roman', serif; font-size: 18px; color: var(--navy-primary); }

.s13v4-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 14 (V4): IOT EDGE IMPLEMENTATION
   ========================================================================== */
#slide-14 { background: #FAF9F6; overflow: hidden; }

.s14v4-eyebrow {
  position: absolute; top: 35px; left: 60px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--orange-accent); letter-spacing: 0.04em;
}
.s14v4-title {
  position: absolute; top: 60px; left: 60px; right: 60px;
  font-family: var(--font-heading); font-size: 46px; font-weight: 700;
  color: var(--navy-primary); margin: 0; line-height: 1.1;
}
.s14v4-subtitle {
  position: absolute; top: 116px; left: 60px; right: 60px;
  font-family: 'Times New Roman', serif; font-size: 19px; color: var(--navy-slate);
}

.s14v4-content {
  position: absolute; top: 155px; left: 60px; right: 60px;
  display: flex; flex-direction: column;
}

.s14v4-panels {
  display: flex; justify-content: space-between; align-items: stretch;
  height: 600px; gap: 12px; margin-bottom: 20px;
}

.s14v4-connector {
  font-family: 'Courier New', monospace; font-size: 26px; font-weight: 700; color: var(--orange-accent);
  display: flex; align-items: center; justify-content: center;
}

.s14v4-panel {
  border: 1px solid var(--border-medium); border-radius: 5px; background: #fff;
  display: flex; flex-direction: column; box-shadow: 0 1px 3px rgba(0,0,0,0.02);
  padding: 0; overflow: hidden;
}

.s14v4-p-head {
  padding: 16px 20px; border-bottom: 1px solid var(--border-light); background: rgba(24,34,56,0.02);
  border-top: 3px solid var(--navy-primary);
}
.s14v4-ph-org { border-top: 3px solid var(--orange-accent); }

.s14v4-p-num { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--navy-slate); margin-bottom: 4px; letter-spacing: 0.04em; }
.s14v4-p-sub { font-family: 'Times New Roman', serif; font-size: 18px; font-weight: 700; color: var(--navy-primary); }
.s14v4-txt-org { color: var(--orange-accent) !important; }

/* Table styling */
.s14v4-table {
  width: calc(100% - 40px); margin: 25px auto; border-collapse: collapse; font-family: 'Times New Roman', serif; font-size: 15.5px;
}
.s14v4-table th {
  text-align: left; font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-slate);
  padding: 10px 12px; border-bottom: 1px solid var(--border-light); letter-spacing: 0.02em;
}
.s14v4-table td {
  padding: 12px 12px; border-bottom: 1px solid var(--border-light); color: var(--navy-dark);
}
.s14v4-table tbody tr:last-child td { border-bottom: none; }
.s14v4-table td:first-child { font-family: 'Courier New', monospace; font-weight: 700; font-size: 14.5px; }

.s14v4-rules-table { margin: 15px auto 25px auto; }
.s14v4-rules-table td:nth-child(2), .s14v4-rules-table td:nth-child(3) { font-family: 'Courier New', monospace; font-size: 14px; }

/* Col 1 */
.s14v4-tamper-note {
  font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-primary);
  text-align: center; margin-bottom: auto; padding: 0 20px; line-height: 1.45;
}

.s14v4-edge-role {
  margin: 25px; border: 1px solid var(--border-light); border-radius: 4px; background: rgba(24,34,56,0.02);
  padding: 16px; text-align: center;
}
.s14v4-role-head { font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--navy-slate); margin-bottom: 8px; }
.s14v4-role-text { font-family: 'Times New Roman', serif; font-size: 16px; font-weight: 700; color: var(--navy-primary); }

/* Col 2 */
.s14v4-rtos-flow {
  display: flex; flex-direction: column; align-items: center; margin: 30px 0 20px 0;
}
.s14v4-rtos-box {
  width: 170px; height: 40px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border-medium); border-radius: 4px; background: #fff;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-primary);
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
.s14v4-rtos-arr {
  font-size: 22px; color: var(--navy-slate); margin: 6px 0; line-height: 1;
}

.s14v4-rtos-desc {
  font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-dark);
  text-align: center; margin: 0 25px auto 25px; line-height: 1.45;
}

.s14v4-rules-head {
  font-family: 'Courier New', monospace; font-size: 14.5px; font-weight: 700; color: var(--navy-slate);
  text-align: center; margin-top: 20px;
}

/* Col 3 */
.s14v4-evt-id {
  font-family: 'Courier New', monospace; font-size: 26px; font-weight: 700; color: var(--navy-primary);
  text-align: center; margin: 30px 0 15px 0;
}
.s14v4-evt-record {
  margin: 0 30px 20px 30px; font-family: 'Courier New', monospace; font-size: 15.5px;
}
.s14v4-er-row {
  display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dotted var(--border-light);
}
.s14v4-er-row span:first-child { color: var(--navy-slate); font-weight: 700; }
.s14v4-er-row span:last-child { color: var(--navy-dark); text-align: right; }
.s14v4-sev-crit { color: #B91C1C !important; font-weight: 700; }

.s14v4-json {
  font-family: 'Courier New', monospace; font-size: 14.5px; color: var(--navy-dark);
  background: rgba(24,34,56,0.03); border: 1px solid var(--border-light); border-radius: 4px;
  padding: 16px; margin: 0 30px auto 30px; white-space: pre; line-height: 1.4;
}

.s14v4-mqtt-pub {
  font-family: 'Times New Roman', serif; font-size: 15.5px; color: var(--navy-dark); font-style: italic;
  text-align: center; margin: 16px 20px 20px 20px;
}

/* Bottom Strips */
.s14v4-mqtt-strip {
  position: relative; top: auto; left: auto; right: auto;
  border: 1px solid var(--border-medium); border-radius: 4px; background: rgba(24,34,56,0.03);
  height: 50px; display: flex; justify-content: space-between; align-items: center; padding: 0 30px;
  margin-bottom: 20px;
}
.s14v4-ms-left { font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-primary); }
.s14v4-ms-right { font-family: 'Courier New', monospace; font-size: 15px; color: var(--navy-slate); }
.s14v4-ms-right code { color: var(--orange-accent); font-weight: 700; }

.s14v4-telemetry-strip {
  border: 1px solid var(--border-medium); border-radius: 5px; background: #fff;
  padding: 20px 30px; border-left: 4px solid var(--navy-primary);
  display: flex; flex-direction: column; justify-content: center;
}
.s14v4-ts-head { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--navy-slate); margin-bottom: 8px; letter-spacing: 0.05em; }
.s14v4-ts-text { font-family: 'Times New Roman', serif; font-size: 17px; color: var(--navy-primary); line-height: 1.45; }

.s14v4-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}


/* ==========================================================================
   SLIDE 01 (V2): TITLE SLIDE
   ========================================================================== */
#slide-01 { background: #FAF9F6; overflow: hidden; display: flex; }

.s1v2-left {
  position: absolute; left: 80px; top: 60px; width: 920px; height: 960px;
  display: flex; flex-direction: column;
}

.s1v2-divider {
  position: absolute; left: 1040px; top: 120px; bottom: 120px; width: 3px;
  background: var(--orange-accent); opacity: 0.8;
}

.s1v2-right {
  position: absolute; left: 1080px; top: 120px; right: 80px; bottom: 120px;
  display: flex; flex-direction: column; justify-content: center;
}

.s1v2-uni-head { margin-bottom: 50px; position: relative; }
.s1v2-uni-name { font-family: var(--font-heading); font-size: 24px; font-weight: 700; color: var(--navy-primary); letter-spacing: 0.05em; margin-bottom: 6px; }
.s1v2-uni-sub { font-family: 'Courier New', monospace; font-size: 15px; color: var(--navy-slate); border-bottom: 1px solid var(--border-medium); padding-bottom: 16px; margin-bottom: 16px; }
.s1v2-tag { position: absolute; right: 0; top: 0; font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--orange-accent); letter-spacing: 0.05em; }

.s1v2-title { font-family: var(--font-heading); font-size: 68px; font-weight: 700; color: var(--navy-primary); margin: 0 0 12px 0; line-height: 1.1; }
.s1v2-subtitle { font-family: 'Times New Roman', serif; font-size: 28px; color: var(--navy-slate); margin-bottom: 35px; }

.s1v2-statement { font-family: 'Times New Roman', serif; font-size: 22px; color: var(--navy-primary); line-height: 1.45; margin-bottom: 45px; max-width: 850px; }

.s1v2-domain { font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-slate); margin-bottom: 60px; letter-spacing: 0.05em; }
.s1v2-dom-sep { color: var(--orange-accent); margin: 0 15px; font-size: 20px; }

.s1v2-team-container { margin-bottom: auto; }
.s1v2-team-head { font-family: 'Courier New', monospace; font-size: 16px; font-weight: 700; color: var(--navy-slate); margin-bottom: 15px; letter-spacing: 0.05em; }
.s1v2-team-table { width: 100%; border-collapse: collapse; border-top: 2px solid var(--navy-primary); border-bottom: 2px solid var(--navy-primary); }
.s1v2-team-table th { text-align: left; font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-slate); padding: 12px 15px; border-bottom: 1px solid var(--border-medium); }
.s1v2-team-table td { padding: 16px 15px; border-bottom: 1px solid var(--border-light); }
.s1v2-team-table tbody tr:last-child td { border-bottom: none; }
.s1v2-tt-num { font-family: 'Courier New', monospace; font-size: 16px; color: var(--navy-slate); width: 50px; }
.s1v2-tt-name { font-family: var(--font-heading); font-size: 20px; font-weight: 700; color: var(--navy-primary); }
.s1v2-tt-role { font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700; color: var(--orange-accent); }

.s1v2-metadata { font-family: 'Courier New', monospace; font-size: 14.5px; color: var(--navy-slate); margin-top: 60px; letter-spacing: 0.03em; }

.s1v2-visual-container { border: 1px solid var(--border-medium); border-radius: 6px; background: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; overflow: hidden; height: 100%; box-shadow: 0 4px 15px rgba(12,30,54,0.05); }
.s1v2-visual-container img { width: 100%; height: 100%; min-height: 0; object-fit: contain; flex: 1; border-bottom: 1px solid var(--border-light); }
.s1v2-vis-caption { width: 100%; padding: 15px 25px; background: #fff; font-family: 'Times New Roman', serif; font-size: 16px; color: var(--navy-dark); text-align: center; }
.s1v2-vis-caption strong { font-family: 'Courier New', monospace; font-size: 14px; color: var(--navy-primary); letter-spacing: 0.05em; display: block; margin-bottom: 6px; }

.s1v2-slide-num { position: absolute; right: 60px; bottom: 30px; font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700; color: var(--navy-slate); z-index: 2; }


/* ==========================================================================
   SLIDE 02 (V2): PRESENTATION OVERVIEW
   ========================================================================== */
#slide-02 { background: #FAF9F6; overflow: hidden; }

.s2v2-header { position: absolute; left: 200px; top: 110px; }
.s2v2-title { font-family: var(--font-heading); font-size: 52px; font-weight: 700; color: var(--navy-primary); margin: 0; }
.s2v2-title-accent { width: 70px; height: 3px; background: var(--orange-accent); margin-top: 18px; }

.s2v2-structure-label { 
  position: absolute; left: 200px; top: 260px;
  font-family: 'Courier New', monospace; font-size: 15px; font-weight: 700;
  color: var(--navy-slate); letter-spacing: 0.08em; display: flex; align-items: center;
}
.s2v2-str-arr { font-family: 'Courier New', monospace; font-size: 14px; color: var(--orange-accent); margin-left: 20px; font-weight: 400; letter-spacing: 0; }

.s2v2-grid {
  position: absolute; left: 200px; top: 320px; width: 1520px;
  display: flex; flex-direction: column;
}

.s2v2-row { display: flex; justify-content: space-between; }
.s2v2-row-top { margin-bottom: 60px; }
.s2v2-row-center { margin-bottom: 60px; }
.s2v2-row-bottom { }

.s2v2-block {
  width: 720px; display: flex; flex-direction: column; justify-content: flex-start;
}
.s2v2-num {
  font-family: 'Courier New', monospace; font-size: 17px; font-weight: 700;
  color: var(--orange-accent); margin-bottom: 12px;
}
.s2v2-block-title {
  font-family: var(--font-heading); font-size: 34px; font-weight: 400;
  color: var(--navy-primary); margin-bottom: 18px; letter-spacing: 0.02em;
}
.s2v2-block-line {
  width: 100%; height: 1px; background: var(--border-medium);
}

.s2v2-block-hero {
  width: 100%; height: 130px; display: flex; align-items: center;
  background: rgba(24,34,56,0.03); border: 1px solid var(--border-medium);
  border-left: 5px solid var(--orange-accent); border-radius: 4px; padding: 0 45px;
}
.s2v2-hero-num {
  font-family: 'Courier New', monospace; font-size: 20px; font-weight: 700;
  color: var(--orange-accent); margin-right: 45px;
}
.s2v2-hero-content { display: flex; flex-direction: column; }
.s2v2-hero-title {
  font-family: var(--font-heading); font-size: 36px; font-weight: 700;
  color: var(--navy-primary); margin-bottom: 8px; letter-spacing: 0.03em;
}
.s2v2-hero-sub {
  font-family: 'Times New Roman', serif; font-size: 18px; color: var(--navy-slate);
}

.s2v2-closing {
  position: absolute; left: 200px; right: 200px; bottom: 80px;
  font-family: 'Times New Roman', serif; font-size: 18px; color: var(--navy-dark);
  text-align: center; font-style: italic;
}

.s2v2-slide-num {
  position: absolute; right: 60px; bottom: 30px;
  font-family: 'Courier New', monospace; font-size: 14px; font-weight: 700;
  color: var(--navy-slate); z-index: 2;
}