/* ===== ROOT & RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #070d1a;
  --bg2: #0d1526;
  --bg3: #111d35;
  --card: #0f1c32;
  --border: rgba(56,189,248,0.12);
  --accent: #38bdf8;
  --accent2: #10b981;
  --accent3: #a78bfa;
  --text: #e2e8f0;
  --muted: #7a8fa8;
  --font: 'Inter', sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ===== NAV ===== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 40px;
  background: rgba(7,13,26,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all 0.3s;
}
#navbar.scrolled { padding: 10px 40px; background: rgba(7,13,26,0.96); }
.nav-brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 1.1rem; letter-spacing: -0.02em; }
.lock-icon { font-size: 1.3rem; }
.nav-links { display: flex; gap: 28px; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: var(--accent); }
.nav-cta {
  background: var(--accent); color: #000; font-weight: 700; font-size: 0.85rem;
  padding: 8px 18px; border-radius: 8px; text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(56,189,248,0.4); }

/* ===== HERO ===== */
#hero {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; text-align: center;
  position: relative; overflow: hidden;
  background: radial-gradient(ellipse at 60% 40%, #0a1f3d 0%, #070d1a 70%);
}
#particle-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-bg-overlay {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center top, rgba(56,189,248,0.07) 0%, transparent 60%);
}
.hero-content { position: relative; z-index: 2; max-width: 800px; padding: 0 20px; padding-top: 80px; }
.hero-badge {
  display: inline-block; padding: 6px 16px; border-radius: 99px;
  background: rgba(56,189,248,0.1); border: 1px solid rgba(56,189,248,0.3);
  color: var(--accent); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em;
  margin-bottom: 20px; text-transform: uppercase;
}
#hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem); font-weight: 900; letter-spacing: -0.04em; line-height: 1.05;
  color: #fff; margin-bottom: 20px;
}
#hero h1 .accent { color: var(--accent); }
.hero-sub { font-size: 1.1rem; color: var(--muted); max-width: 580px; margin: 0 auto 36px; line-height: 1.75; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: #000; font-weight: 700; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 10px; text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(56,189,248,0.35); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); color: var(--text); font-weight: 600; font-size: 0.95rem;
  padding: 14px 28px; border-radius: 10px; text-decoration: none;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); background: rgba(56,189,248,0.05); }

.hero-stats { display: flex; gap: 48px; justify-content: center; flex-wrap: wrap; }
.stat { text-align: center; }
.stat-num { display: block; font-size: 2.2rem; font-weight: 800; color: var(--accent); font-variant-numeric: tabular-nums; }
.stat-label { font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }

.scroll-indicator {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 6px; z-index: 2;
}
.scroll-dot {
  width: 24px; height: 40px; border: 2px solid rgba(56,189,248,0.3); border-radius: 12px;
  position: relative;
}
.scroll-dot::after {
  content: ''; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  width: 5px; height: 10px; background: var(--accent); border-radius: 3px;
  animation: scrollBounce 2s infinite;
}
@keyframes scrollBounce { 0%,100%{top:6px;opacity:1} 50%{top:18px;opacity:0.3} }

/* ===== SECTIONS ===== */
section { padding: 100px 20px; }
section:nth-child(even) { background: var(--bg2); }
.container { max-width: 1100px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block; padding: 5px 14px; border-radius: 99px;
  background: rgba(56,189,248,0.1); color: var(--accent);
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; margin-bottom: 12px;
}
.section-header h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; color: #fff; letter-spacing: -0.03em; margin-bottom: 14px; }
.section-header p { color: var(--muted); max-width: 560px; margin: 0 auto; font-size: 1.05rem; }

/* ===== FEATURES ===== */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.feature-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 28px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.feature-card:hover { transform: translateY(-8px); border-color: rgba(56,189,248,0.4); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
.feature-icon { font-size: 2.2rem; margin-bottom: 14px; }
.feature-card h3 { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.feature-card p { color: var(--muted); font-size: 0.92rem; line-height: 1.65; }

/* ===== DEMO ===== */
.demo-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
@media(max-width:768px){ .demo-wrapper { grid-template-columns: 1fr; } }

.chat-panel {
  background: var(--card); border: 1px solid var(--border); border-radius: 20px; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.chat-header {
  background: var(--bg3); padding: 16px 20px; display: flex; align-items: center; gap: 14px;
  border-bottom: 1px solid var(--border);
}
.chat-avatar {
  width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg,var(--accent),var(--accent3));
  display: flex; align-items: center; justify-content: center; font-weight: 700; color: #000; font-size: 0.85rem;
}
.chat-name { font-weight: 700; font-size: 0.95rem; color: #fff; }
.chat-status { font-size: 0.76rem; color: var(--accent2); display: flex; align-items: center; gap: 5px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent2); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(1.3)} }
.chat-shield { margin-left: auto; font-size: 1.4rem; }
.chat-messages { height: 280px; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.msg { max-width: 80%; padding: 10px 14px; border-radius: 14px; font-size: 0.88rem; line-height: 1.5; animation: msgIn 0.3s ease; }
@keyframes msgIn { from{opacity:0;transform:translateY(10px)} to{opacity:1;transform:translateY(0)} }
.msg.sent { background: linear-gradient(135deg,rgba(56,189,248,0.2),rgba(56,189,248,0.1)); border: 1px solid rgba(56,189,248,0.25); align-self: flex-end; color: var(--text); }
.msg.received { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); align-self: flex-start; color: var(--text); }
.msg.system { align-self: center; background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.2); color: var(--accent2); font-size: 0.78rem; font-style: italic; text-align: center; max-width: 95%; }
.chat-input-row { display: flex; gap: 10px; padding: 14px 16px; border-top: 1px solid var(--border); }
.chat-input {
  flex: 1; background: var(--bg3); border: 1px solid var(--border); border-radius: 10px;
  color: var(--text); padding: 10px 14px; font-family: var(--font); font-size: 0.9rem; outline: none;
  transition: border-color 0.2s;
}
.chat-input:focus { border-color: var(--accent); }
.send-btn {
  background: var(--accent); color: #000; border: none; border-radius: 10px;
  padding: 10px 18px; font-weight: 700; font-size: 0.88rem; cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}
.send-btn:hover { transform: scale(1.05); box-shadow: 0 4px 15px rgba(56,189,248,0.4); }

.encrypt-panel {
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.ep-header { background: var(--bg3); padding: 16px 20px; font-weight: 700; font-size: 0.9rem; border-bottom: 1px solid var(--border); }
.ep-log { padding: 16px; height: 310px; overflow-y: auto; font-family: var(--mono); font-size: 0.78rem; display: flex; flex-direction: column; gap: 8px; }
.log-entry { padding: 8px 12px; border-radius: 8px; border-left: 3px solid transparent; background: rgba(255,255,255,0.03); color: var(--muted); animation: logIn 0.4s ease; }
@keyframes logIn { from{opacity:0;transform:translateX(-10px)} to{opacity:1;transform:translateX(0)} }
.log-entry.inactive { border-left-color: var(--muted); }
.log-entry.success { border-left-color: var(--accent2); color: var(--accent2); }
.log-entry.info { border-left-color: var(--accent); color: var(--accent); }
.log-entry.warning { border-left-color: #f59e0b; color: #f59e0b; }
.ep-badge { padding: 12px 20px; text-align: center; font-weight: 700; font-size: 0.9rem; border-top: 1px solid var(--border); transition: color 0.3s; }
.ep-badge.active { color: var(--accent2); }

/* ===== ENCRYPTION VISUALIZER ===== */
.enc-flow-wrapper { background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 32px; }
.enc-input-row { display: flex; gap: 12px; margin-bottom: 36px; flex-wrap: wrap; }
.enc-text-input {
  flex: 1; min-width: 260px; background: var(--bg2); border: 1px solid var(--border);
  border-radius: 10px; color: var(--text); padding: 12px 16px;
  font-family: var(--mono); font-size: 0.9rem; outline: none; transition: border-color 0.2s;
}
.enc-text-input:focus { border-color: var(--accent); }
.enc-stages {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: center; margin-bottom: 24px;
}
.enc-stage { text-align: center; flex: 1; min-width: 120px; }
.stage-label { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px; font-weight: 600; }
.stage-box {
  padding: 10px 8px; border-radius: 10px; font-family: var(--mono); font-size: 0.68rem;
  word-break: break-all; min-height: 60px; display: flex; align-items: center; justify-content: center;
  text-align: center; border: 1px solid;
  transition: all 0.4s ease;
}
.plain-box { background: rgba(16,185,129,0.08); border-color: rgba(16,185,129,0.3); color: var(--accent2); }
.key-box { background: rgba(167,139,250,0.08); border-color: rgba(167,139,250,0.3); color: var(--accent3); }
.cipher-box { background: rgba(56,189,248,0.08); border-color: rgba(56,189,248,0.3); color: var(--accent); }
.hash-box { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.3); color: #f59e0b; }
.tls-box { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.3); color: #ef4444; }
.stage-box.animating { animation: stageGlow 0.5s ease; }
@keyframes stageGlow { 0%{opacity:0;transform:scale(0.9)} 60%{opacity:1;transform:scale(1.05)} 100%{transform:scale(1)} }
.stage-arrow { color: var(--muted); font-size: 1.4rem; flex-shrink: 0; }
.enc-status { text-align: center; color: var(--muted); font-size: 0.88rem; font-style: italic; padding: 8px; }
.enc-status.running { color: var(--accent); }
.enc-status.done { color: var(--accent2); }

/* ===== METRICS ===== */
.metrics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; margin-bottom: 40px; }
.metric-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 22px 24px; }
.metric-label { font-size: 0.88rem; color: var(--muted); font-weight: 600; margin-bottom: 14px; }
.metric-bar-wrap { background: rgba(255,255,255,0.06); border-radius: 99px; height: 7px; overflow: hidden; margin-bottom: 10px; }
.metric-bar { height: 100%; border-radius: 99px; background: var(--bar-color); width: 0; transition: width 1.5s cubic-bezier(0.22,1,0.36,1); }
.metric-value { font-size: 0.85rem; font-weight: 700; color: var(--text); }

.score-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.score-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 28px 20px; text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}
.score-card:hover { transform: translateY(-6px); border-color: rgba(56,189,248,0.35); }
.score-icon { font-size: 2rem; margin-bottom: 10px; }
.score-num { font-size: 1.8rem; font-weight: 800; color: var(--accent); letter-spacing: -0.03em; margin-bottom: 6px; }
.score-desc { font-size: 0.82rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.07em; }

/* ===== ARCHITECTURE ===== */
.arch-flow { display: flex; flex-direction: column; align-items: center; gap: 0; max-width: 500px; margin: 0 auto; }
.arch-node {
  width: 100%; padding: 20px 28px; border-radius: 14px;
  background: var(--card); border: 1px solid var(--border);
  display: flex; align-items: center; gap: 16px;
  transition: border-color 0.3s, transform 0.3s;
}
.arch-node:hover { border-color: rgba(56,189,248,0.4); transform: translateX(6px); }
.highlight-node { border-color: rgba(56,189,248,0.35); background: rgba(56,189,248,0.05); }
.response-node { border-color: rgba(16,185,129,0.35); background: rgba(16,185,129,0.05); }
.arch-icon { font-size: 1.8rem; flex-shrink: 0; }
.arch-title { font-weight: 700; color: #fff; font-size: 1rem; margin-bottom: 2px; }
.arch-sub { font-size: 0.8rem; color: var(--muted); }
.arch-arrow-down { font-size: 1.6rem; color: rgba(56,189,248,0.4); line-height: 1; padding: 2px 0; }

/* ===== TECH STACK ===== */
.tech-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; }
.tech-card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 24px 20px; text-align: center;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.tech-card:hover { transform: translateY(-8px); border-color: rgba(56,189,248,0.4); box-shadow: 0 16px 40px rgba(0,0,0,0.4); }
.tech-icon { font-size: 2rem; margin-bottom: 12px; }
.tech-name { font-weight: 700; color: #fff; font-size: 1rem; margin-bottom: 6px; }
.tech-desc { font-size: 0.8rem; color: var(--muted); line-height: 1.5; }

/* ===== CONTACT ===== */
#contact { background: var(--bg2); }
.contact-card {
  max-width: 500px; margin: 0 auto; text-align: center;
  background: var(--card); border: 1px solid var(--border); border-radius: 24px; padding: 48px 36px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
}
.contact-avatar {
  width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 20px;
  background: linear-gradient(135deg,var(--accent),var(--accent3));
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 1.1rem; color: #000;
}
.contact-card h2 { font-size: 1.5rem; font-weight: 800; color: #fff; margin-bottom: 8px; }
.contact-sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 28px; }
.contact-links { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.contact-link {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px; border-radius: 10px;
  border: 1px solid var(--border); color: var(--text); text-decoration: none;
  font-weight: 600; font-size: 0.9rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.contact-link:hover { border-color: var(--accent); color: var(--accent); background: rgba(56,189,248,0.05); }

/* ===== FOOTER ===== */
footer { background: #040a14; padding: 40px 20px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer-brand { font-weight: 800; font-size: 1rem; color: var(--accent); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 0.88rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { color: var(--muted); font-size: 0.82rem; }

/* ===== PRELOADER ===== */
#preloader {
  position: fixed; inset: 0; background: #040a14; z-index: 9999;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.pre-ring {
  width: 52px; height: 52px; border-radius: 50%;
  border: 3px solid rgba(56,189,248,0.15);
  border-top-color: var(--accent);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.pre-text { color: var(--accent); font-weight: 700; font-size: 1rem; letter-spacing: 0.12em; text-transform: uppercase; }

/* ===== SCROLL PROGRESS ===== */
#scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent3));
  z-index: 2000; transition: width 0.1s linear;
}

/* ===== BACK TO TOP ===== */
#back-to-top {
  position: fixed; bottom: 28px; right: 28px; z-index: 1500;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--accent); color: #000; border: none;
  font-size: 1.2rem; font-weight: 700; cursor: pointer;
  box-shadow: 0 4px 20px rgba(56,189,248,0.4);
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.3s, transform 0.3s;
}
#back-to-top.visible { opacity: 1; transform: translateY(0); }
#back-to-top:hover { background: #7dd3fc; box-shadow: 0 6px 28px rgba(56,189,248,0.6); }

/* ===== HAMBURGER ===== */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-drawer {
  position: fixed; top: 60px; left: 0; right: 0; z-index: 999;
  background: rgba(7,13,26,0.98); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; padding: 12px 0;
  transform: translateY(-110%); transition: transform 0.35s cubic-bezier(0.22,1,0.36,1);
}
.mobile-drawer.open { transform: translateY(0); }
.drawer-link {
  padding: 14px 28px; color: var(--text); text-decoration: none; font-size: 0.95rem; font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: color 0.2s, background 0.2s;
}
.drawer-link:hover { color: var(--accent); background: rgba(56,189,248,0.05); }

/* ===== TERMINAL SIMULATOR ===== */
.terminal-wrapper {
  background: #0a0f1c; border: 1px solid rgba(56,189,248,0.2); border-radius: 16px;
  overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,0.7);
  font-family: var(--mono);
}
.terminal-topbar {
  background: #111827; padding: 12px 16px; display: flex; align-items: center; gap: 8px;
  border-bottom: 1px solid rgba(56,189,248,0.1);
}
.t-dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.t-dot.red { background: #ef4444; }
.t-dot.yellow { background: #f59e0b; }
.t-dot.green { background: #10b981; }
.t-title { margin-left: 10px; color: var(--muted); font-size: 0.82rem; }
.terminal-body { padding: 16px 20px; min-height: 200px; max-height: 320px; overflow-y: auto; }
.t-line { color: var(--accent2); font-size: 0.85rem; margin-bottom: 4px; }
.t-prompt { color: var(--accent); font-weight: 600; margin-right: 8px; }
.t-cursor { animation: blink 1s step-end infinite; color: var(--accent); }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
#t-output { font-size: 0.82rem; }
.t-out-line { padding: 3px 0; border-left: 2px solid transparent; padding-left: 10px; }
.t-out-line.cmd { color: var(--accent); border-left-color: var(--accent); }
.t-out-line.ok { color: var(--accent2); }
.t-out-line.err { color: #ef4444; border-left-color: #ef4444; }
.t-out-line.info { color: #e2e8f0; opacity: 0.7; }
.t-out-line.warn { color: #f59e0b; }
.terminal-input-row {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 20px; border-top: 1px solid rgba(56,189,248,0.1);
  background: #0a0f1c;
}
.t-prompt-input { color: var(--accent2); font-weight: 700; font-size: 1rem; }
.t-input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-family: var(--mono); font-size: 0.88rem;
}
.t-run-btn {
  background: var(--accent); color: #000; border: none; border-radius: 8px;
  padding: 8px 16px; font-weight: 700; font-size: 0.82rem; cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}
.t-run-btn:hover { opacity: 0.85; transform: scale(1.05); }
.terminal-hints { padding: 10px 20px 14px; display: flex; gap: 8px; flex-wrap: wrap; background: #0a0f1c; border-top: 1px solid rgba(56,189,248,0.06); }
.hint-tag {
  padding: 4px 12px; border-radius: 99px; background: rgba(56,189,248,0.08);
  border: 1px solid rgba(56,189,248,0.2); color: var(--accent); font-size: 0.75rem;
  cursor: pointer; transition: background 0.2s;
}
.hint-tag:hover { background: rgba(56,189,248,0.18); }

/* ===== LIVE THREAT MONITOR ===== */
.threat-wrapper {
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.threat-header {
  background: var(--bg3); padding: 16px 20px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.threat-title { font-weight: 700; font-size: 0.95rem; }
.threat-controls { display: flex; gap: 10px; }
.threat-btn {
  background: rgba(255,255,255,0.06); border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: 6px 14px;
  font-size: 0.8rem; cursor: pointer; transition: background 0.2s;
}
.threat-btn:hover { background: rgba(255,255,255,0.1); }
.threat-btn.active { border-color: var(--accent2); color: var(--accent2); }
.threat-stats-row { display: flex; gap: 0; border-bottom: 1px solid var(--border); }
.ts-card {
  flex: 1; padding: 14px 20px; text-align: center; border-right: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 2px;
}
.ts-card:last-child { border-right: none; }
.ts-card span { font-size: 1.6rem; font-weight: 800; color: var(--accent2); }
.ts-card.warn span { color: #f59e0b; }
.ts-card.crit span { color: #ef4444; }
.ts-card small { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.threat-feed {
  height: 320px; overflow-y: auto; padding: 12px 16px;
  display: flex; flex-direction: column; gap: 6px;
  font-family: var(--mono); font-size: 0.78rem;
}
.threat-event {
  padding: 8px 12px; border-radius: 8px; border-left: 3px solid;
  background: rgba(255,255,255,0.02); animation: logIn 0.4s ease;
  display: flex; align-items: flex-start; gap: 10px;
}
.threat-event.block { border-left-color: var(--accent2); color: var(--accent2); }
.threat-event.warn  { border-left-color: #f59e0b; color: #f59e0b; }
.threat-event.crit  { border-left-color: #ef4444; color: #ef4444; }
.te-ts { opacity: 0.5; white-space: nowrap; flex-shrink: 0; }
.te-msg { line-height: 1.5; }

/* ===== FAQ ACCORDION ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  overflow: hidden; transition: border-color 0.3s;
}
.faq-item.open { border-color: rgba(56,189,248,0.3); }
.faq-q {
  width: 100%; background: none; border: none; color: var(--text); text-align: left;
  padding: 20px 24px; font-size: 0.97rem; font-weight: 600; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-family: var(--font); transition: color 0.2s;
}
.faq-q:hover { color: var(--accent); }
.faq-item.open .faq-q { color: var(--accent); }
.faq-arrow { font-size: 0.8rem; transition: transform 0.3s; flex-shrink: 0; color: var(--muted); }
.faq-item.open .faq-arrow { transform: rotate(180deg); color: var(--accent); }
.faq-a {
  max-height: 0; overflow: hidden; padding: 0 24px;
  color: var(--muted); font-size: 0.92rem; line-height: 1.75;
  transition: max-height 0.4s cubic-bezier(0.22,1,0.36,1), padding 0.3s;
}
.faq-item.open .faq-a { max-height: 200px; padding: 0 24px 20px; }

/* ===== RESPONSIVE ===== */
@media(max-width: 900px) {
  .nav-links { display: none !important; }
  .desktop-only { display: none !important; }
  .hamburger { display: flex; }
}
@media(max-width: 768px) {
  #navbar { padding: 12px 20px; }
  .hero-stats { gap: 24px; }
  .enc-stages { flex-direction: column; }
  .stage-arrow { transform: rotate(90deg); }
  .footer-inner { flex-direction: column; text-align: center; }
  .threat-stats-row { flex-direction: column; }
  .ts-card { border-right: none; border-bottom: 1px solid var(--border); }
  .ts-card:last-child { border-bottom: none; }
}

/* ===== TYPEWRITER HIGHLIGHT ===== */
.tw-highlight { color: var(--accent); font-weight: 700; position: relative; }
.tw-highlight::after { content: '|'; color: var(--accent); animation: blink 0.7s step-end infinite; margin-left: 1px; }

/* ===== HERO GLOWING ORBS ===== */
.orb { position: absolute; border-radius: 50%; pointer-events: none; filter: blur(90px); z-index: 1; }
.orb1 { width: 340px; height: 340px; top: 8%; left: 3%; background: rgba(56,189,248,0.09); animation: orbFloat 9s ease-in-out infinite; }
.orb2 { width: 260px; height: 260px; top: 35%; right: 5%; background: rgba(167,139,250,0.11); animation: orbFloat 7s ease-in-out infinite 2.5s; }
.orb3 { width: 220px; height: 220px; bottom: 12%; left: 35%; background: rgba(16,185,129,0.08); animation: orbFloat 11s ease-in-out infinite 5s; }
@keyframes orbFloat { 0%,100%{transform:translateY(0) scale(1)} 50%{transform:translateY(-28px) scale(1.06)} }

/* ===== GLITCH on hero h1 ===== */
#hero h1 { position: relative; }
#hero h1::before,#hero h1::after { content: attr(data-text); position: absolute; left:0; top:0; width:100%; overflow: hidden; clip-path: inset(0 0 100% 0); }
#hero h1::before { color: #38bdf8; text-shadow: -2px 0 #ef4444; animation: glitch1 5s infinite steps(1); }
#hero h1::after  { color: #a78bfa; text-shadow: 2px 0 #10b981; animation: glitch2 5s infinite steps(1); }
@keyframes glitch1 { 0%,93%,100%{clip-path:inset(0 0 100% 0);opacity:0} 94%{clip-path:inset(15% 0 55% 0);opacity:0.7;transform:translate(-3px)} 96%{clip-path:inset(65% 0 8% 0);opacity:0.5;transform:translate(3px)} }
@keyframes glitch2 { 0%,90%,100%{clip-path:inset(0 0 100% 0);opacity:0} 91%{clip-path:inset(45% 0 35% 0);opacity:0.6;transform:translate(3px)} 93%{clip-path:inset(8% 0 78% 0);opacity:0.4;transform:translate(-2px)} }

/* ===== CURSOR GLOW ===== */
#cursor-glow { position:fixed; width:320px; height:320px; border-radius:50%; background:radial-gradient(circle,rgba(56,189,248,0.055) 0%,transparent 70%); pointer-events:none; z-index:0; transform:translate(-50%,-50%); transition:left 0.08s,top 0.08s; }

/* ===== 3D CARD TILT ===== */
.feature-card,.tech-card,.score-card { transform-style:preserve-3d; will-change:transform; }

/* ===== TOAST NOTIFICATIONS ===== */
#toast-stack { position:fixed; bottom:80px; left:24px; z-index:9000; display:flex; flex-direction:column-reverse; gap:10px; pointer-events:none; }
.toast { background:rgba(7,13,26,0.96); border:1px solid var(--border); border-radius:12px; padding:12px 18px; min-width:260px; max-width:340px; display:flex; align-items:center; gap:10px; font-size:0.84rem; box-shadow:0 8px 30px rgba(0,0,0,0.5); backdrop-filter:blur(16px); animation:toastIn 0.4s cubic-bezier(0.22,1,0.36,1) forwards; pointer-events:all; }
.toast.removing { animation:toastOut 0.35s ease forwards; }
.toast-icon { font-size:1.1rem; flex-shrink:0; }
.toast-body { flex:1; }
.toast-title { font-weight:700; color:#fff; margin-bottom:2px; }
.toast-msg { color:var(--muted); font-size:0.78rem; line-height:1.4; }
.toast.success { border-left:3px solid var(--accent2); }
.toast.warn    { border-left:3px solid #f59e0b; }
.toast.danger  { border-left:3px solid #ef4444; }
.toast.info    { border-left:3px solid var(--accent); }
@keyframes toastIn  { from{opacity:0;transform:translateX(-30px)} to{opacity:1;transform:translateX(0)} }
@keyframes toastOut { to{opacity:0;transform:translateX(-30px);height:0;padding:0;margin:0} }

/* ===== NETWORK TOPOLOGY ===== */
#topology { background:var(--bg2); }
.topology-wrap { background:var(--card); border:1px solid var(--border); border-radius:20px; overflow:hidden; position:relative; }
#topology-canvas { display:block; width:100%; height:420px; }
.topology-legend { position:absolute; bottom:14px; right:14px; display:flex; gap:12px; flex-wrap:wrap; justify-content:flex-end; }
.tl-item { display:flex; align-items:center; gap:6px; font-size:0.74rem; color:var(--muted); }
.tl-dot { width:8px; height:8px; border-radius:50%; display:inline-block; }

/* ===== MATRIX RAIN SECTION ===== */
#matrix-section { position:relative; overflow:hidden; padding:0; min-height:420px; background:#020812; }
.matrix-inner { position:relative; width:100%; min-height:420px; display:flex; align-items:center; justify-content:center; }
#matrix-canvas { position:absolute; inset:0; width:100%; height:100%; opacity:0.45; }
.matrix-overlay-text { position:relative; z-index:2; text-align:center; padding:80px 20px; max-width:700px; }
.matrix-badge { display:inline-block; padding:6px 16px; border-radius:99px; margin-bottom:16px; background:rgba(16,185,129,0.15); border:1px solid rgba(16,185,129,0.4); color:var(--accent2); font-size:0.78rem; font-weight:700; letter-spacing:0.12em; }
.matrix-overlay-text h2 { font-size:clamp(1.6rem,4vw,2.6rem); font-weight:800; color:#fff; margin-bottom:14px; letter-spacing:-0.03em; }
.matrix-overlay-text p { color:var(--muted); font-size:1rem; margin-bottom:28px; }
.matrix-stats { display:flex; gap:40px; justify-content:center; flex-wrap:wrap; }
.ms { text-align:center; }
.ms span { display:block; font-size:1.8rem; font-weight:800; color:var(--accent2); letter-spacing:-0.03em; }
.ms small { font-size:0.72rem; color:var(--muted); text-transform:uppercase; letter-spacing:0.1em; }

/* ===== GLOWING SECTION TAGS ===== */
@keyframes tagGlow { 0%,100%{box-shadow:0 0 0 0 rgba(56,189,248,0)} 50%{box-shadow:0 0 16px 3px rgba(56,189,248,0.2)} }
.section-tag { animation:tagGlow 3s ease-in-out infinite; }

/* ===== FEATURE BADGE HOVER GLOW ===== */
.feature-card:hover .feature-icon { filter:drop-shadow(0 0 12px rgba(56,189,248,0.7)); transition:filter 0.3s; }
.tech-card:hover .tech-icon { filter:drop-shadow(0 0 10px rgba(56,189,248,0.6)); transition:filter 0.3s; }

/* media extra */
@media(max-width:768px) {
  .topology-legend { position:static; padding:12px; justify-content:center; }
  .matrix-stats { gap:20px; }
  .orb { display:none; }
}