/* ═══════════════════════════════════════════════════════════════════════
   Smart Cart OS — GitHub Pages (Full Demo Edition)
   Self-contained. Zero interference with main React app.
═══════════════════════════════════════════════════════════════════════ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --ind:#6366f1;--ind-d:#4f46e5;--vio:#8b5cf6;
  --em:#10b981;--amb:#f59e0b;--ros:#f43f5e;--cya:#06b6d4;--ora:#f97316;
  --bg:#0a0b14;--bg1:#0f1120;--bg2:#141629;--bg3:#1e2035;
  --card:rgba(255,255,255,.04);--cardh:rgba(255,255,255,.07);
  --bdr:rgba(255,255,255,.08);--bdrh:rgba(255,255,255,.16);
  --tx:#f1f5f9;--tx2:#94a3b8;--tx3:#64748b;
  --r:16px;--rl:24px;--rxl:32px;--rs:8px;
  --tr:.3s cubic-bezier(.4,0,.2,1);
}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--tx);
  line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none}
button{font-family:'Inter',sans-serif;cursor:pointer}
.mono{font-family:'JetBrains Mono',monospace}

/* Reveal */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* Gradient text */
.gradient-text{
  background:linear-gradient(135deg,var(--ind) 0%,var(--vio) 50%,var(--cya) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* Tags */
.tag{background:rgba(255,255,255,.06);border:1px solid var(--bdr);
  color:var(--tx3);font-size:.7rem;font-weight:600;
  padding:3px 8px;border-radius:999px;display:inline-block}

/* ═══ NAVBAR ═══════════════════════════════════════════════════════════ */
#navbar{position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(10,11,20,.9);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--bdr);transition:var(--tr)}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 24px;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px}
.nav-logo{display:flex;align-items:center;gap:10px;color:var(--tx);
  font-weight:700;font-size:1.05rem;letter-spacing:-.02em;flex-shrink:0}
.logo-icon{width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--ind),var(--vio));
  display:flex;align-items:center;justify-content:center;font-size:.9rem}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{color:var(--tx2);font-size:.82rem;font-weight:500;
  padding:6px 10px;border-radius:var(--rs);transition:color .2s,background .2s;white-space:nowrap}
.nav-links a:hover{color:var(--tx);background:var(--card)}
.btn-nav-cta{background:var(--ind)!important;color:#fff!important;
  font-weight:600!important;border-radius:var(--rs)!important}
.btn-nav-cta:hover{background:var(--ind-d)!important}
.hamburger{display:none;flex-direction:column;gap:5px;
  background:none;border:none;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:var(--tx2);border-radius:2px}
.mobile-menu{display:none;flex-direction:column;
  background:var(--bg1);border-top:1px solid var(--bdr);padding:12px 0}
.mobile-link{color:var(--tx2);font-size:.95rem;font-weight:500;padding:12px 24px;transition:color .2s}
.mobile-link:hover{color:var(--tx);background:var(--card)}
.cta-mobile{color:var(--ind)!important;font-weight:700!important}
@media(max-width:860px){.nav-links{display:none}.hamburger{display:flex}}

/* ═══ HERO ══════════════════════════════════════════════════════════════ */
#hero{position:relative;min-height:100vh;display:flex;align-items:center;
  justify-content:center;padding:120px 24px 80px;overflow:hidden}
.hero-glow{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none}
.g1{width:600px;height:600px;background:rgba(99,102,241,.14);top:-200px;left:-150px}
.g2{width:400px;height:400px;background:rgba(139,92,246,.1);bottom:-80px;right:-80px}
.g3{width:300px;height:300px;background:rgba(6,182,212,.07);top:50%;left:50%;transform:translate(-50%,-50%)}
.hero-particles{position:absolute;inset:0;pointer-events:none}
.hero-inner{position:relative;max-width:860px;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;
  background:rgba(99,102,241,.12);border:1px solid rgba(99,102,241,.3);
  color:#a5b4fc;font-size:.73rem;font-weight:600;letter-spacing:.04em;
  text-transform:uppercase;padding:6px 14px;border-radius:999px;margin-bottom:28px}
.badge-dot{width:6px;height:6px;background:var(--ind);border-radius:50%;
  animation:pdot 2s ease infinite}
@keyframes pdot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}
.hero-title{font-size:clamp(2.4rem,6vw,5rem);font-weight:900;
  letter-spacing:-.04em;line-height:1.05;margin-bottom:24px}
.hero-subtitle{font-size:clamp(.9rem,1.8vw,1.1rem);color:var(--tx2);
  max-width:660px;margin:0 auto 36px;line-height:1.7}
.hero-actions{display:flex;align-items:center;justify-content:center;
  gap:14px;flex-wrap:wrap;margin-bottom:56px}
.btn-primary{display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,var(--ind),var(--vio));color:#fff;
  font-weight:700;font-size:.95rem;padding:13px 26px;border-radius:var(--r);
  box-shadow:0 0 40px rgba(99,102,241,.3);border:none;
  transition:transform .2s,box-shadow .2s;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 60px rgba(99,102,241,.5)}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;
  background:var(--card);border:1px solid var(--bdr);color:var(--tx2);
  font-weight:600;font-size:.9rem;padding:13px 26px;border-radius:var(--r);
  transition:background .2s,color .2s}
.btn-secondary:hover{background:var(--cardh);color:var(--tx)}
.hero-stats{display:flex;align-items:center;justify-content:center;
  background:var(--card);border:1px solid var(--bdr);border-radius:var(--rl);
  padding:22px 28px;flex-wrap:wrap}
.stat-card{flex:1;min-width:90px;text-align:center;padding:8px 14px}
.stat-number{font-size:1.9rem;font-weight:900;letter-spacing:-.04em;
  background:linear-gradient(135deg,var(--ind),var(--vio));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:.7rem;color:var(--tx3);font-weight:500;margin-top:2px}
.stat-divider{width:1px;height:36px;background:var(--bdr);flex-shrink:0}

/* ═══ SECTION COMMONS ══════════════════════════════════════════════════ */
section{padding:90px 24px}
#demos{background:var(--bg1)}
#all-features{background:var(--bg)}
#architecture{background:var(--bg1)}
#tech{background:var(--bg)}
#team{background:var(--bg1)}
.section-inner{max-width:1280px;margin:0 auto}
.section-header{text-align:center;margin-bottom:56px}
.section-tag{display:inline-block;background:rgba(99,102,241,.12);
  border:1px solid rgba(99,102,241,.25);color:#a5b4fc;
  font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 12px;border-radius:999px;margin-bottom:14px}
.section-title{font-size:clamp(1.7rem,3.5vw,2.6rem);font-weight:800;
  letter-spacing:-.03em;line-height:1.15;margin-bottom:14px}
.section-subtitle{color:var(--tx2);font-size:1rem;max-width:500px;margin:0 auto}

/* ═══ DEMO SECTION ══════════════════════════════════════════════════════ */
.demo-tabs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:32px}
.demo-tab{display:flex;flex-direction:column;align-items:center;gap:4px;
  padding:12px 20px;border-radius:var(--r);background:var(--card);
  border:1px solid var(--bdr);color:var(--tx2);font-size:.85rem;font-weight:700;
  cursor:pointer;transition:background var(--tr),border-color var(--tr),color var(--tr)}
.demo-tab span{font-size:.7rem;font-weight:400;color:var(--tx3)}
.demo-tab:hover{background:var(--cardh);color:var(--tx)}
.demo-tab.active{background:linear-gradient(135deg,rgba(99,102,241,.2),rgba(139,92,246,.15));
  border-color:rgba(99,102,241,.4);color:var(--tx)}
.demo-panel{display:none;animation:fadeUp .35s ease}
.demo-panel.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.demo-label{font-size:.8rem;font-weight:700;color:var(--ind);letter-spacing:.04em;
  text-transform:uppercase;margin-bottom:20px}
.ctrl-btn{padding:10px 20px;border-radius:var(--rs);border:1px solid var(--bdr);
  background:var(--card);color:var(--tx2);font-size:.85rem;font-weight:600;
  cursor:pointer;transition:background .2s,color .2s;margin-right:8px;margin-top:8px}
.ctrl-btn:hover{background:var(--cardh);color:var(--tx)}
.ctrl-btn.primary{background:linear-gradient(135deg,var(--ind),var(--vio));
  color:#fff;border-color:transparent;box-shadow:0 0 20px rgba(99,102,241,.3)}
.ctrl-btn.primary:hover{box-shadow:0 0 30px rgba(99,102,241,.5)}

/* ── RFID Demo ──────────────────────────────────────────────────────── */
.rfid-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;min-height:520px}
@media(max-width:768px){.rfid-layout{grid-template-columns:1fr}}

.rfid-shelf{background:var(--bg3);border:1px solid var(--bdr);
  border-radius:var(--r);padding:16px;margin-bottom:16px}
.shelf-title{font-size:.75rem;font-weight:700;color:var(--tx3);
  text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}
.shelf-products{display:flex;flex-direction:column;gap:6px}
.shelf-item{display:flex;justify-content:space-between;align-items:center;
  padding:10px 14px;border-radius:var(--rs);background:var(--card);
  border:1px solid var(--bdr);cursor:pointer;font-size:.85rem;font-weight:600;
  transition:background .2s,border-color .2s,transform .15s}
.shelf-item:hover{background:var(--cardh);border-color:rgba(99,102,241,.3);transform:translateX(4px)}
.shelf-item span{font-size:.7rem;color:var(--tx3);font-family:'JetBrains Mono',monospace}
.shelf-item.scanning{background:rgba(99,102,241,.15);border-color:var(--ind);
  animation:scanFlash .4s ease}
@keyframes scanFlash{0%,100%{opacity:1}50%{opacity:.6}}
.shelf-item.scanned{opacity:.4;pointer-events:none}

.rfid-log{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);padding:14px;max-height:160px;overflow:hidden}
.log-title{font-size:.7rem;font-weight:700;color:var(--tx3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.log-entries{display:flex;flex-direction:column;gap:4px;overflow-y:auto;max-height:120px}
.log-entry{font-family:'JetBrains Mono',monospace;font-size:.72rem;padding:3px 6px;border-radius:4px}
.log-info{color:#60a5fa;background:rgba(96,165,250,.05)}
.log-success{color:#34d399;background:rgba(52,211,153,.05)}
.log-warn{color:#fbbf24;background:rgba(251,191,36,.05)}

.rfid-right{display:flex;flex-direction:column;align-items:center;gap:16px;position:relative}
.rfid-beam{position:absolute;top:50%;left:-20px;width:40px;height:3px;
  background:linear-gradient(90deg,transparent,var(--ind));
  border-radius:2px;display:none;z-index:10}
.phone-frame{width:220px;background:#0d0f1a;border-radius:28px;
  border:2px solid rgba(255,255,255,.12);box-shadow:0 20px 60px rgba(0,0,0,.5);
  padding:16px 12px;position:relative;overflow:hidden}
.phone-notch{width:60px;height:8px;background:#0d0f1a;border-radius:4px;
  margin:0 auto 12px;position:relative;z-index:2}
.phone-notch::after{content:'';position:absolute;top:50%;left:50%;
  transform:translate(-50%,-50%);width:8px;height:8px;
  background:rgba(255,255,255,.15);border-radius:50%}
.phone-screen{min-height:380px;display:flex;flex-direction:column}
.phone-header{display:flex;justify-content:space-between;align-items:center;
  font-size:.8rem;font-weight:700;margin-bottom:12px;padding-bottom:8px;
  border-bottom:1px solid var(--bdr)}
.phone-badge{background:var(--ind);color:#fff;font-size:.65rem;font-weight:800;
  padding:2px 7px;border-radius:999px;min-width:20px;text-align:center}
.phone-cart-items{flex:1;display:flex;flex-direction:column;gap:6px;overflow-y:auto;max-height:280px}
.empty-cart{color:var(--tx3);font-size:.75rem;text-align:center;
  padding:40px 10px;border:1px dashed var(--bdr);border-radius:var(--rs)}
.cart-item-row{display:flex;justify-content:space-between;align-items:center;
  padding:7px 10px;background:var(--card);border-radius:var(--rs);
  font-size:.75rem;border:1px solid var(--bdr);animation:slideIn .3s ease}
@keyframes slideIn{from{opacity:0;transform:translateX(-10px)}to{opacity:1;transform:translateX(0)}}
.cart-item-row .ci-name{color:var(--tx);font-weight:600;font-size:.72rem}
.cart-item-row .ci-price{color:var(--em);font-weight:700;font-size:.75rem}
.phone-footer{margin-top:auto;padding-top:10px;border-top:1px solid var(--bdr)}
.phone-total-label{font-size:.65rem;color:var(--tx3);font-weight:500}
.phone-total{font-size:1.1rem;font-weight:900;color:var(--em);margin-bottom:8px}
.checkout-btn{width:100%;padding:8px;border-radius:var(--rs);
  background:linear-gradient(135deg,var(--em),var(--cya));color:#fff;
  font-weight:700;font-size:.78rem;border:none;cursor:pointer;
  transition:opacity .2s;opacity:.7}
.checkout-btn:hover{opacity:1}
.rfid-status{display:flex;align-items:center;gap:8px;font-size:.8rem;color:var(--tx2)}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--tx3);transition:background .3s}
.status-dot.active{background:var(--em);animation:pdot 1s ease infinite}
.status-dot.scanning{background:var(--ind);animation:pdot .5s ease infinite}

/* ── CHAT Demo ──────────────────────────────────────────────────────── */
.chat-layout{display:grid;grid-template-columns:220px 1fr;gap:16px;min-height:520px}
@media(max-width:768px){.chat-layout{grid-template-columns:1fr}}
.chat-sidebar{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);padding:16px;display:flex;flex-direction:column;gap:8px}
.chat-sidebar-title{font-size:.72rem;font-weight:700;color:var(--tx3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.chat-preset{text-align:left;padding:10px 12px;border-radius:var(--rs);background:var(--card);
  border:1px solid var(--bdr);color:var(--tx2);font-size:.78rem;cursor:pointer;
  transition:background .2s,color .2s,border-color .2s}
.chat-preset:hover{background:rgba(99,102,241,.12);border-color:rgba(99,102,241,.3);color:var(--tx)}
.chat-context{margin-top:auto;padding:10px;background:var(--card);border-radius:var(--rs);border:1px solid var(--bdr)}
.ctx-title{font-size:.65rem;color:var(--tx3);font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.ctx-items{font-size:.72rem;color:var(--tx2)}

.chat-window{display:flex;flex-direction:column;background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);overflow:hidden}
.chat-header{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--bdr);background:var(--card)}
.chat-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--ind),var(--vio));display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}
.chat-header strong{font-size:.9rem;display:block}
.ai-status{font-size:.7rem;color:var(--em);font-weight:500}
.chat-messages{flex:1;padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:12px;max-height:340px}
.msg{display:flex;gap:10px;align-items:flex-start}
.msg-avatar{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.9rem;flex-shrink:0}
.ai-msg .msg-avatar{background:linear-gradient(135deg,var(--ind),var(--vio))}
.user-msg{flex-direction:row-reverse}
.user-msg .msg-avatar{background:linear-gradient(135deg,var(--em),var(--cya))}
.msg-bubble{padding:10px 14px;border-radius:var(--r);font-size:.83rem;line-height:1.6;max-width:85%;white-space:pre-line}
.ai-msg .msg-bubble{background:var(--card);border:1px solid var(--bdr);color:var(--tx)}
.user-msg .msg-bubble{background:linear-gradient(135deg,rgba(99,102,241,.2),rgba(139,92,246,.15));border:1px solid rgba(99,102,241,.3);color:var(--tx)}
.typing-bubble{display:flex;gap:4px;padding:10px 14px}
.typing-dot{width:7px;height:7px;border-radius:50%;background:var(--tx3);animation:typd 1.2s ease infinite}
.typing-dot:nth-child(2){animation-delay:.2s}
.typing-dot:nth-child(3){animation-delay:.4s}
@keyframes typd{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-6px);opacity:1}}
.chat-input-row{display:flex;gap:8px;padding:12px}
.chat-input{flex:1;background:var(--card);border:1px solid var(--bdr);
  color:var(--tx);padding:10px 14px;border-radius:var(--rs);font-size:.85rem;outline:none;transition:border-color .2s}
.chat-input:focus{border-color:rgba(99,102,241,.5)}
.chat-send{background:linear-gradient(135deg,var(--ind),var(--vio));color:#fff;
  border:none;border-radius:var(--rs);width:40px;height:40px;font-size:1.1rem;font-weight:700;
  cursor:pointer;transition:transform .2s}
.chat-send:hover{transform:scale(1.05)}

/* ── BARCODE Demo ───────────────────────────────────────────────────── */
.barcode-layout{display:grid;grid-template-columns:1fr 280px;gap:24px;min-height:480px}
@media(max-width:768px){.barcode-layout{grid-template-columns:1fr}}
.scanner-frame{width:100%;aspect-ratio:4/3;max-height:320px;background:#000;border-radius:var(--r);
  overflow:hidden;position:relative;border:2px solid var(--bdr)}
.scanner-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.scanner-corner{position:absolute;width:28px;height:28px;border-color:var(--ind);border-style:solid}
.tl{top:20px;left:20px;border-width:3px 0 0 3px;border-radius:4px 0 0 0}
.tr{top:20px;right:20px;border-width:3px 3px 0 0;border-radius:0 4px 0 0}
.bl{bottom:20px;left:20px;border-width:0 0 3px 3px;border-radius:0 0 0 4px}
.br{bottom:20px;right:20px;border-width:0 3px 3px 0;border-radius:0 0 4px 0}
.scanner-line{position:absolute;left:20px;right:20px;height:2px;
  background:linear-gradient(90deg,transparent,var(--ind),var(--cya),var(--ind),transparent);
  box-shadow:0 0 8px var(--ind);display:none}
.scanner-idle{color:var(--tx3);font-size:.85rem;text-align:center;padding:20px}
.scanner-detected{position:absolute;inset:0;display:none;flex-direction:column;
  align-items:center;justify-content:center;background:rgba(10,11,20,.9)}
.detected-check{font-size:3rem;margin-bottom:8px;animation:popIn .4s ease}
@keyframes popIn{0%{transform:scale(0)}80%{transform:scale(1.2)}100%{transform:scale(1)}}
.detected-name{font-size:1rem;font-weight:700;color:var(--tx);margin-bottom:4px}
.detected-price{font-size:1.4rem;font-weight:900;color:var(--em)}
.bp-title{font-size:.72rem;font-weight:700;color:var(--tx3);text-transform:uppercase;letter-spacing:.06em;margin-top:16px;margin-bottom:8px}
.bp-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.bp-item{padding:8px;border-radius:var(--rs);background:var(--card);border:1px solid var(--bdr);
  cursor:pointer;text-align:center;font-size:.75rem;transition:background .2s,border-color .2s}
.bp-item:hover{background:var(--cardh);border-color:rgba(99,102,241,.3)}
.bc-cart-title{font-size:.72rem;font-weight:700;color:var(--tx3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.bc-cart{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);
  padding:12px;flex:1;display:flex;flex-direction:column;gap:6px;min-height:200px;max-height:300px;overflow-y:auto}
.bc-empty{color:var(--tx3);font-size:.78rem;text-align:center;padding:30px 10px}
.bc-total-row{display:flex;justify-content:space-between;padding:10px 12px;
  border-top:1px solid var(--bdr);font-weight:700;color:var(--em);margin-top:8px}
.bc-item{display:flex;justify-content:space-between;align-items:center;
  padding:7px 10px;background:var(--card);border-radius:var(--rs);
  font-size:.78rem;animation:slideIn .3s ease}

/* ── VOICE Demo ─────────────────────────────────────────────────────── */
.voice-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px;min-height:480px}
@media(max-width:768px){.voice-layout{grid-template-columns:1fr}}
.voice-orb-container{position:relative;width:140px;height:140px;margin:0 auto 20px}
.voice-rings{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.vring{position:absolute;border-radius:50%;border:2px solid rgba(99,102,241,.3)}
.r1{width:100%;height:100%}
.r2{width:75%;height:75%}
.r3{width:50%;height:50%}
.vring.active{animation:ringPulse 1.5s ease infinite}
.vring.active:nth-child(2){animation-delay:.3s}
.vring.active:nth-child(3){animation-delay:.6s}
@keyframes ringPulse{0%{transform:scale(1);opacity:.3}50%{transform:scale(1.05);opacity:.8}100%{transform:scale(1);opacity:.3}}
.voice-orb{width:80px;height:80px;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  background:linear-gradient(135deg,var(--ind),var(--vio));
  border:none;font-size:1.8rem;cursor:pointer;
  box-shadow:0 0 30px rgba(99,102,241,.4);transition:transform .2s,box-shadow .2s}
.voice-orb:hover{transform:translate(-50%,-50%) scale(1.05);box-shadow:0 0 50px rgba(99,102,241,.6)}
.voice-orb.listening{animation:orbPulse .8s ease infinite}
@keyframes orbPulse{0%,100%{box-shadow:0 0 30px rgba(99,102,241,.4)}50%{box-shadow:0 0 60px rgba(99,102,241,.8)}}
.voice-status{text-align:center;font-size:.9rem;color:var(--tx2);margin-bottom:12px}
.voice-transcript{min-height:36px;text-align:center;font-size:1rem;font-weight:700;color:var(--tx);
  padding:8px;border-radius:var(--rs);background:var(--card);border:1px solid var(--bdr);margin-bottom:16px}
.voice-cmds{display:flex;flex-direction:column;gap:6px}
.vcmd-title{font-size:.7rem;color:var(--tx3);font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px}
.vcmd{text-align:left;padding:9px 14px;border-radius:var(--rs);background:var(--card);
  border:1px solid var(--bdr);color:var(--tx2);font-size:.8rem;cursor:pointer;
  font-family:'JetBrains Mono',monospace;transition:background .2s,color .2s}
.vcmd:hover{background:rgba(99,102,241,.12);border-color:rgba(99,102,241,.3);color:var(--tx)}
#voiceWave{display:block;border-radius:var(--rs);background:var(--bg3);border:1px solid var(--bdr);width:100%}
.voice-cart-title,.voice-total-row,.voice-history,.vh-title{font-size:.8rem}
.voice-cart{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);
  padding:12px;display:flex;flex-direction:column;gap:6px;min-height:140px;max-height:200px;overflow-y:auto;margin:10px 0}
.vc-empty{color:var(--tx3);font-size:.76rem;text-align:center;padding:20px}
.vc-item{display:flex;justify-content:space-between;padding:7px 10px;
  background:var(--card);border-radius:var(--rs);font-size:.78rem;animation:slideIn .3s ease}
.voice-total-row{display:flex;justify-content:space-between;padding:8px 0;
  border-top:1px solid var(--bdr);font-weight:700;color:var(--em)}
.vh-title{color:var(--tx3);font-weight:700;text-transform:uppercase;letter-spacing:.06em;margin-top:12px;margin-bottom:6px}
.vh-entry{font-size:.75rem;color:var(--tx2);padding:4px 8px;border-left:2px solid var(--ind);margin-bottom:4px;font-family:'JetBrains Mono',monospace}

/* ── DASHBOARD Demo ─────────────────────────────────────────────────── */
.dash-grid{display:flex;flex-direction:column;gap:16px}
.dash-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:768px){.dash-stats{grid-template-columns:repeat(2,1fr)}}
.dash-stat-card{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);
  padding:18px;display:flex;align-items:center;gap:14px;transition:border-color var(--tr)}
.dash-stat-card:hover{border-color:rgba(99,102,241,.3)}
.ds-icon{font-size:1.8rem}
.ds-value{font-size:1.6rem;font-weight:900;letter-spacing:-.03em;
  background:linear-gradient(135deg,var(--ind),var(--vio));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.ds-label{font-size:.72rem;color:var(--tx3);font-weight:500;margin-top:2px}
.dash-chart-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media(max-width:768px){.dash-chart-row{grid-template-columns:1fr}}
.dash-chart{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);padding:18px}
.dc-title{font-size:.8rem;font-weight:700;color:var(--tx);margin-bottom:14px}
.cat-bars{display:flex;flex-direction:column;gap:10px}
.cat-bar-row{display:grid;grid-template-columns:70px 1fr 36px;gap:8px;align-items:center}
.cat-bar-row span:first-child{font-size:.76rem;color:var(--tx2);text-align:right}
.cat-bar-track{height:8px;background:rgba(255,255,255,.06);border-radius:4px;overflow:hidden}
.cat-bar-fill{height:100%;border-radius:4px;transition:width 1.5s ease;width:0}
.cb-dairy{background:linear-gradient(90deg,var(--ind),var(--vio))}
.cb-pantry{background:linear-gradient(90deg,var(--em),var(--cya))}
.cb-snacks{background:linear-gradient(90deg,var(--amb),var(--ora))}
.cb-bev{background:linear-gradient(90deg,var(--cya),#06d6a0)}
.cb-spice{background:linear-gradient(90deg,var(--ros),var(--amb))}
.cb-pct{font-size:.7rem;color:var(--tx3);font-family:'JetBrains Mono',monospace}
.dash-log{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);padding:18px;overflow:hidden}
.dl-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.dl-header span:first-child{font-size:.8rem;font-weight:700}
.live-dot{font-size:.7rem;color:var(--em);font-weight:700;animation:pdot 1.5s ease infinite}
.dl-entries{display:flex;flex-direction:column;gap:4px;max-height:200px;overflow-y:auto}
.dl-entry{font-family:'JetBrains Mono',monospace;font-size:.7rem;padding:5px 8px;
  border-radius:4px;border-left:3px solid transparent;animation:slideIn .3s ease}
.dl-entry.info{color:#60a5fa;border-left-color:#60a5fa;background:rgba(96,165,250,.05)}
.dl-entry.success{color:#34d399;border-left-color:#34d399;background:rgba(52,211,153,.05)}
.dl-entry.warn{color:#fbbf24;border-left-color:#fbbf24;background:rgba(251,191,36,.05)}
.dash-db-view{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);padding:18px}
.db-title{font-size:.8rem;font-weight:700;margin-bottom:12px}
.db-tabs{display:flex;gap:6px;margin-bottom:12px}
.db-tab{padding:5px 12px;border-radius:var(--rs);background:var(--card);
  border:1px solid var(--bdr);color:var(--tx2);font-size:.76rem;font-weight:600;
  cursor:pointer;font-family:'JetBrains Mono',monospace;transition:background .2s,color .2s}
.db-tab.active,.db-tab:hover{background:rgba(99,102,241,.15);
  border-color:rgba(99,102,241,.3);color:var(--tx)}
.db-table-wrap{overflow-x:auto}
.db-table{width:100%;border-collapse:collapse;font-family:'JetBrains Mono',monospace;font-size:.72rem}
.db-table th{padding:6px 10px;text-align:left;color:var(--tx3);font-weight:600;
  border-bottom:1px solid var(--bdr);white-space:nowrap}
.db-table td{padding:6px 10px;color:var(--tx2);border-bottom:1px solid rgba(255,255,255,.03);white-space:nowrap}
.db-table tr:hover td{background:var(--card)}

/* ── BUDGET Demo ────────────────────────────────────────────────────── */
.budget-layout{display:grid;grid-template-columns:280px 1fr;gap:24px;min-height:480px}
@media(max-width:768px){.budget-layout{grid-template-columns:1fr}}
.budget-set label{font-size:.75rem;font-weight:700;color:var(--tx3);text-transform:uppercase;letter-spacing:.06em;display:block;margin-bottom:8px}
.budget-slider-row{display:flex;align-items:center;gap:10px;font-size:.75rem;color:var(--tx3)}
.budget-slider-row input{flex:1;accent-color:var(--ind)}
.budget-amount{font-size:2rem;font-weight:900;text-align:center;margin:12px 0;
  background:linear-gradient(135deg,var(--ind),var(--vio));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.budget-ring-container{display:flex;justify-content:center;margin:16px 0}
.budget-ring{width:200px;height:200px}
.budget-remain{display:flex;justify-content:space-between;padding:10px 12px;
  background:var(--card);border-radius:var(--rs);border:1px solid var(--bdr);font-size:.85rem}
.budget-remain strong{color:var(--em);font-weight:800}
.budget-alert{margin-top:10px;padding:10px 14px;background:rgba(245,158,11,.1);
  border:1px solid rgba(245,158,11,.3);border-radius:var(--rs);
  color:#fbbf24;font-size:.8rem;font-weight:600;text-align:center;animation:fadeUp .4s ease}
.budget-add-title{font-size:.72rem;font-weight:700;color:var(--tx3);
  text-transform:uppercase;letter-spacing:.06em;margin-bottom:10px}
.budget-items-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-bottom:16px}
.bud-item{padding:10px 12px;border-radius:var(--rs);background:var(--bg3);
  border:1px solid var(--bdr);cursor:pointer;font-size:.8rem;font-weight:600;
  transition:background .2s,border-color .2s;display:flex;justify-content:space-between}
.bud-item:hover{background:rgba(16,185,129,.1);border-color:rgba(16,185,129,.3)}
.bud-item span{color:var(--tx3);font-size:.72rem}
.budget-cart-title{font-size:.72rem;font-weight:700;color:var(--tx3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.budget-cart{background:var(--bg3);border:1px solid var(--bdr);border-radius:var(--r);
  padding:12px;display:flex;flex-direction:column;gap:6px;min-height:120px;max-height:200px;overflow-y:auto}
.budget-item-row{display:flex;justify-content:space-between;align-items:center;
  padding:7px 10px;background:var(--card);border-radius:var(--rs);font-size:.78rem;animation:slideIn .3s ease}
.remove-btn{background:none;border:none;color:var(--tx3);cursor:pointer;font-size:.9rem;padding:2px 6px;border-radius:4px;transition:color .2s}
.remove-btn:hover{color:var(--ros)}
.budget-breakdown{margin-top:10px}

/* ═══ ALL FEATURES ═══════════════════════════════════════════════════════ */
.all-features-filter{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-bottom:32px}
.ff-btn{padding:8px 16px;border-radius:999px;background:var(--card);
  border:1px solid var(--bdr);color:var(--tx2);font-size:.8rem;font-weight:600;
  cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.ff-btn:hover{background:var(--cardh);color:var(--tx)}
.ff-btn.active{background:linear-gradient(135deg,rgba(99,102,241,.2),rgba(139,92,246,.15));
  border-color:rgba(99,102,241,.4);color:var(--tx)}
.all-features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:1024px){.all-features-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.all-features-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.all-features-grid{grid-template-columns:1fr}}
.af-card{background:var(--card);border:1px solid var(--bdr);border-radius:var(--r);
  padding:20px;transition:background var(--tr),border-color var(--tr),transform var(--tr);
  animation:fadeUp .4s ease;position:relative}
.af-card:hover{background:var(--cardh);border-color:var(--bdrh);transform:translateY(-4px)}
.af-card.hot-card{border-color:rgba(245,158,11,.2);background:rgba(245,158,11,.03)}
.af-card.hot-card:hover{border-color:rgba(245,158,11,.4)}
.af-card.live-card{border-color:rgba(16,185,129,.2);background:rgba(16,185,129,.03)}
.af-card.live-card:hover{border-color:rgba(16,185,129,.4)}
.af-emoji{font-size:1.6rem;margin-bottom:8px;display:block}
.af-title{font-size:.9rem;font-weight:700;margin-bottom:5px;letter-spacing:-.01em}
.af-desc{font-size:.75rem;color:var(--tx2);line-height:1.5;margin-bottom:10px}
.af-meta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:4px}
.af-phase{font-size:.62rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:2px 7px;border-radius:999px}
.ph-live{background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.3);color:#34d399}
.ph-1{background:rgba(99,102,241,.12);border:1px solid rgba(99,102,241,.3);color:#a5b4fc}
.ph-2{background:rgba(139,92,246,.12);border:1px solid rgba(139,92,246,.3);color:#c4b5fd}
.ph-3{background:rgba(6,182,212,.12);border:1px solid rgba(6,182,212,.3);color:#67e8f9}
.ph-4{background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.3);color:#6ee7b7}
.ph-5{background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.3);color:#fcd34d}
.ph-6{background:rgba(244,63,94,.12);border:1px solid rgba(244,63,94,.3);color:#fda4af}
.af-hot{font-size:.6rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:2px 7px;border-radius:999px;background:rgba(245,158,11,.15);
  border:1px solid rgba(245,158,11,.3);color:#fbbf24}
.af-card.hidden{display:none}

/* ═══ ARCHITECTURE ══════════════════════════════════════════════════════ */
.arch-animated{display:flex;align-items:center;gap:0;overflow-x:auto;padding:10px 0}
.arch-node{flex:1;min-width:160px;background:var(--card);border:1px solid var(--bdr);
  border-radius:var(--rl);padding:24px 18px;text-align:center;
  transition:background var(--tr),border-color var(--tr)}
.arch-node:hover{background:var(--cardh);border-color:var(--bdrh)}
.an-1{border-color:rgba(99,102,241,.25)}.an-2{border-color:rgba(139,92,246,.25)}
.an-3{border-color:rgba(6,182,212,.25)}.an-4{border-color:rgba(16,185,129,.25)}
.an-icon{font-size:2.2rem;margin-bottom:8px}
.an-label{font-size:.62rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--tx3);margin-bottom:4px}
.arch-node h4{font-size:.95rem;font-weight:700;margin-bottom:4px}
.arch-node p{font-size:.75rem;color:var(--tx3);line-height:1.4}
.arch-connector{flex-shrink:0;width:80px;display:flex;flex-direction:column;
  align-items:center;gap:6px;padding:0 8px}
.ac-label{font-size:.62rem;color:var(--tx3);font-weight:600;white-space:nowrap}
.ac-line{width:100%;height:2px;background:rgba(255,255,255,.08);border-radius:1px;position:relative;overflow:hidden}
.ac-pulse{position:absolute;top:0;left:-20px;width:20px;height:2px;
  background:linear-gradient(90deg,transparent,var(--ind),transparent);
  animation:movePulse 2s linear infinite}
@keyframes movePulse{from{left:-20px}to{left:100%}}

/* ═══ TECH STACK ════════════════════════════════════════════════════════ */
.stack-compare{display:grid;grid-template-columns:1fr auto 1fr;gap:32px;align-items:start}
@media(max-width:768px){.stack-compare{grid-template-columns:1fr}.stack-arrow{display:none}}
.stack-col-title{font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--tx3);margin-bottom:14px;text-align:center}
.stack-items{display:flex;flex-direction:column;gap:8px}
.stack-item{display:flex;align-items:center;gap:12px;background:var(--card);
  border:1px solid var(--bdr);border-radius:var(--r);padding:12px 14px;
  transition:background var(--tr),border-color var(--tr)}
.stack-item:hover{background:var(--cardh);border-color:var(--bdrh)}
.stack-item.plan{border-color:rgba(99,102,241,.15);background:rgba(99,102,241,.03)}
.stack-item.plan:hover{border-color:rgba(99,102,241,.4)}
.stack-item>span:first-child{font-size:1.3rem;width:28px;text-align:center;flex-shrink:0}
.stack-item div{display:flex;flex-direction:column;gap:2px}
.stack-item strong{font-size:.85rem;font-weight:700}
.stack-item span{font-size:.72rem;color:var(--tx3)}
.stack-arrow{display:flex;align-items:center;justify-content:center;
  font-size:1.8rem;color:var(--tx3);padding-top:40px}

/* ═══ TEAM ══════════════════════════════════════════════════════════════ */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:900px;margin:0 auto}
@media(max-width:700px){.team-grid{grid-template-columns:1fr}}
.team-card{background:var(--card);border:1px solid var(--bdr);border-radius:var(--rl);
  padding:36px 24px;text-align:center;transition:background var(--tr),border-color var(--tr),transform var(--tr)}
.team-card:hover{background:var(--cardh);border-color:var(--bdrh);transform:translateY(-4px)}
.team-avatar{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;
  justify-content:center;font-size:1.8rem;font-weight:900;color:#fff;margin:0 auto 16px}
.av1{background:linear-gradient(135deg,var(--ind),var(--vio))}
.av2{background:linear-gradient(135deg,var(--em),var(--cya))}
.av3{background:linear-gradient(135deg,var(--amb),var(--ros))}
.team-card h4{font-size:1.1rem;font-weight:700;margin-bottom:4px}
.team-role{font-size:.8rem;color:var(--ind);font-weight:600;margin-bottom:10px}
.team-github{font-size:.75rem;color:var(--tx3);transition:color .2s}
a.team-github:hover{color:var(--ind)}

/* ═══ FOOTER ════════════════════════════════════════════════════════════ */
#footer{background:var(--bg2);border-top:1px solid var(--bdr);padding:48px 24px;text-align:center}
.footer-inner{max-width:800px;margin:0 auto}
.footer-brand{display:flex;align-items:center;justify-content:center;
  gap:10px;font-weight:700;font-size:1.1rem;margin-bottom:16px}
.footer-copy{color:var(--tx3);font-size:.85rem;margin-bottom:8px}
.footer-copy a{color:var(--ind);transition:color .2s}.footer-copy a:hover{color:var(--vio)}
.footer-small{color:var(--tx3);font-size:.75rem;opacity:.6}

/* ═══ SCROLLBAR ═════════════════════════════════════════════════════════ */
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:rgba(99,102,241,.35);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--ind)}