:root{
    --bg:#0A0E1A;
    --bg-2:#0C1222;
    --surface:#101933;
    --surface-2:#0E1528;
    --line:rgba(255,255,255,0.08);
    --line-strong:rgba(255,255,255,0.16);
    --text:#EAEEF7;
    --muted:#A6AFC4;
    --muted-2:#79839B;
    --accent:#1E6FFF;
    --accent-soft:rgba(30,111,255,0.12);
    --accent-line:rgba(30,111,255,0.45);
    --teal:#00C2C7;
    --maxw:1200px;
    --pad:40px;
    --sans:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --head:"Space Grotesk",var(--sans);
    --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--sans);
    font-size:17px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
    overflow-x:hidden;
  }
  a{color:inherit;text-decoration:none;}
  ::selection{background:rgba(30,111,255,0.35);color:#fff;}

  body::before{
    content:"";
    position:fixed;
    inset:0;
    background-image:radial-gradient(rgba(255,255,255,0.05) 1px,transparent 1px);
    background-size:34px 34px;
    pointer-events:none;
    z-index:0;
    opacity:0.5;
  }

  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);position:relative;z-index:1;}
  section{position:relative;z-index:1;}

  .eyebrow{
    font-family:var(--mono);
    font-size:12.5px;
    letter-spacing:0.22em;
    text-transform:uppercase;
    color:var(--accent);
    font-weight:500;
    display:inline-flex;
    align-items:center;
    gap:10px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent-line);display:inline-block;}
  .eyebrow.muted{color:var(--muted-2);}
  .eyebrow.muted::before{background:var(--line-strong);}

  h1,h2,h3{font-family:var(--head);font-weight:600;letter-spacing:-0.02em;line-height:1.08;margin:0;}
  h2{font-size:clamp(30px,3.6vw,46px);}
  p{margin:0;}
  .lead{color:var(--muted);font-size:clamp(17px,1.3vw,20px);line-height:1.65;}

  .section-head{max-width:760px;margin-bottom:54px;margin-left:auto;margin-right:auto;text-align:center;}
  .section-head h2{margin-top:18px;}
  .section-head p{margin-top:20px;}
  .section-head .eyebrow{justify-content:center;}

  .btn{
    display:inline-flex;align-items:center;gap:11px;
    font-family:var(--head);font-weight:600;font-size:16px;letter-spacing:0.01em;
    padding:15px 26px;cursor:pointer;border:none;
    background:var(--accent);color:#fff;
    transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
    box-shadow:0 0 0 1px rgba(30,111,255,0.6),0 14px 40px -16px rgba(30,111,255,0.9);
  }
  .btn:hover{background:#3a82ff;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(58,130,255,0.8),0 18px 44px -14px rgba(30,111,255,1);}
  .btn .arrow{transition:transform .2s ease;}
  .btn:hover .arrow{transform:translateX(4px);}

  /* nav */
  header.nav{
    position:fixed;top:0;left:0;right:0;z-index:50;
    transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
    border-bottom:1px solid transparent;
  }
  header.nav.scrolled{
    background:rgba(10,14,26,0.82);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{max-width:var(--maxw);margin:0 auto;padding:18px var(--pad);display:flex;align-items:center;justify-content:space-between;}
  .brand{display:flex;align-items:center;gap:11px;font-family:var(--head);font-weight:700;font-size:20px;letter-spacing:0.04em;}
  .brand .glyph{width:18px;height:18px;position:relative;}
  .brand .glyph::before,.brand .glyph::after{content:"";position:absolute;inset:0;border:1.5px solid var(--accent);}
  .brand .glyph::after{transform:scale(0.5);background:var(--accent);border-color:var(--accent);}
  .nav-links{display:flex;align-items:center;gap:34px;}
  .nav-links a.lnk{font-family:var(--mono);font-size:13px;letter-spacing:0.04em;color:var(--muted);transition:color .15s;}
  .nav-links a.lnk:hover{color:var(--text);}
  .nav-cta{font-family:var(--head);font-weight:600;font-size:14.5px;padding:10px 18px;background:var(--accent);color:#fff;transition:background .18s,transform .18s;box-shadow:0 0 0 1px rgba(30,111,255,0.5);}
  .nav-cta:hover{background:#3a82ff;transform:translateY(-1px);}

  /* hero */
  .hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:90px;}
  #hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;}
  .hero-fade{position:absolute;inset:0;z-index:1;pointer-events:none;
    background:
      radial-gradient(120% 80% at 75% 30%,transparent 0%,rgba(10,14,26,0.35) 55%,var(--bg) 100%),
      linear-gradient(180deg,rgba(10,14,26,0.4) 0%,transparent 25%,transparent 70%,var(--bg) 100%);
  }
  .hero .wrap{z-index:2;}
  .hero-copy{max-width:680px;}
  .hero h1{font-size:clamp(38px,5.6vw,74px);font-weight:600;margin-top:26px;}
  .hero h1 .em{color:var(--accent);}
  .hero .lead{margin-top:28px;max-width:560px;}
  .hero-actions{margin-top:40px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
  .hero-note{font-family:var(--mono);font-size:12.5px;color:var(--muted-2);letter-spacing:0.03em;}
  .hero-stat-rail{margin-top:64px;display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);max-width:680px;}
  .hero-stat{padding:20px 28px 40px 20px;border-right:1px solid var(--line);}
  .hero-stat:first-child{padding-left:0;}
  .hero-stat:last-child{border-right:none;}
  .hero-stat .n{font-family:var(--head);font-size:26px;font-weight:600;letter-spacing:-0.01em;white-space:nowrap;}
  .hero-stat .l{font-family:var(--mono);font-size:11.5px;letter-spacing:0.08em;text-transform:uppercase;color:var(--muted-2);margin-top:6px;}

  .sec{padding:120px 0;}

  /* problem */
  .problem{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .prob-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
  .prob{padding:0 38px;border-left:1px solid var(--line);}
  .prob:first-child{padding-left:0;border-left:none;}
  .prob:last-child{padding-right:0;}
  .prob .stat{font-family:var(--head);font-size:clamp(44px,5vw,64px);font-weight:600;letter-spacing:-0.02em;line-height:1;color:var(--text);}
  .prob .stat .unit{color:var(--accent);}
  .prob h3{font-size:21px;margin-top:26px;margin-bottom:14px;font-weight:600;}
  .prob p{color:var(--muted);font-size:16px;line-height:1.62;}
  .prob .src{display:block;margin-top:16px;font-family:var(--mono);font-size:11px;letter-spacing:0.06em;color:var(--muted-2);}

  /* layers */
  .layers-wrap{display:grid;grid-template-columns:0.9fr 1.1fr;gap:56px;align-items:start;}
  .layer-list{display:flex;flex-direction:column;gap:14px;}
  .layer-tab{
    text-align:left;width:100%;cursor:pointer;
    background:var(--surface-2);border:1px solid var(--line);
    padding:22px 24px;display:flex;gap:20px;align-items:flex-start;
    transition:border-color .2s,background .2s;
    position:relative;font-family:inherit;color:inherit;
  }
  .layer-tab:hover{border-color:var(--line-strong);}
  .layer-tab.active{border-color:var(--accent);background:var(--surface);}
  .layer-tab.active::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);}
  .layer-tab .lnum{font-family:var(--mono);font-size:12px;color:var(--muted-2);letter-spacing:0.08em;flex-shrink:0;padding-top:3px;}
  .layer-tab.active .lnum{color:var(--accent);}
  .layer-tab .ltitle{font-family:var(--head);font-weight:600;font-size:18px;letter-spacing:-0.01em;display:block;}
  .layer-tab .lstatus{margin-top:7px;font-family:var(--mono);font-size:11px;letter-spacing:0.06em;display:inline-flex;align-items:center;gap:7px;color:var(--muted);}
  .dot{width:7px;height:7px;border-radius:50%;display:inline-block;position:relative;}
  .dot.live{background:#2ecf7a;box-shadow:0 0 0 3px rgba(46,207,122,0.18);animation:pulse-green 2s ease-out infinite;}
  .dot.pilot{background:var(--teal);box-shadow:0 0 0 3px rgba(0,194,199,0.18);animation:pulse-teal 2s ease-out infinite;}
  @keyframes pulse-green{
    0%{box-shadow:0 0 0 0 rgba(46,207,122,0.5);}
    70%{box-shadow:0 0 0 6px rgba(46,207,122,0);}
    100%{box-shadow:0 0 0 0 rgba(46,207,122,0);}
  }
  @keyframes pulse-teal{
    0%{box-shadow:0 0 0 0 rgba(0,194,199,0.5);}
    70%{box-shadow:0 0 0 6px rgba(0,194,199,0);}
    100%{box-shadow:0 0 0 0 rgba(0,194,199,0);}
  }

  .layer-detail{
    background:var(--surface);border:1px solid var(--line);
    padding:38px;min-height:340px;position:relative;overflow:hidden;
  }
  .layer-detail .ld-num{font-family:var(--head);font-size:90px;font-weight:600;line-height:1;color:rgba(255,255,255,0.04);position:absolute;top:24px;right:34px;letter-spacing:-0.03em;}
  .layer-panel{display:none;}
  .layer-panel.active{display:block;animation:fade .35s ease;}
  @keyframes fade{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
  .layer-panel .ptitle{font-family:var(--head);font-size:26px;font-weight:600;margin-bottom:8px;}
  .layer-panel .pbadge{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:0.08em;text-transform:uppercase;padding:5px 11px;border:1px solid var(--line-strong);color:var(--muted);margin-bottom:22px;}
  .layer-panel .pdesc{color:var(--muted);font-size:16.5px;line-height:1.66;max-width:480px;}
  .layer-panel .pfeat{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
  .layer-panel .pfeat span{font-family:var(--mono);font-size:12.5px;color:var(--text);padding:7px 13px;background:var(--accent-soft);border:1px solid var(--accent-line);}
  .layer-panel .pmethod{margin-top:26px;font-family:var(--mono);font-size:12.5px;color:var(--muted-2);line-height:1.7;border-top:1px solid var(--line);padding-top:18px;}

  .layers-note{margin-top:40px;border:1px solid var(--line);background:var(--bg-2);padding:24px 28px;display:flex;gap:18px;align-items:flex-start;}
  .layers-note .tm{font-family:var(--head);font-weight:600;color:var(--accent);}
  .layers-note p{color:var(--muted);font-size:15.5px;line-height:1.62;}
  .layers-note .bar{width:3px;align-self:stretch;background:linear-gradient(var(--accent),var(--teal));flex-shrink:0;}

  /* products */
  .products{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .prod-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
  .prod-card{background:var(--surface);border:1px solid var(--line);padding:40px;position:relative;overflow:hidden;transition:border-color .25s,transform .25s;}
  .prod-card:hover{border-color:var(--line-strong);transform:translateY(-3px);}
  .prod-card .pc-tag{font-family:var(--mono);font-size:11.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--muted-2);}
  .prod-card h3{font-family:var(--head);font-size:30px;font-weight:600;margin:14px 0 4px;}
  .prod-card h3 .tm{font-size:15px;vertical-align:super;color:var(--accent);font-weight:500;}
  .prod-card .pc-sub{font-family:var(--mono);font-size:12.5px;color:var(--accent);letter-spacing:0.04em;margin-bottom:22px;}
  .prod-card p{color:var(--muted);font-size:16px;line-height:1.64;max-width:420px;}
  .prod-viz{margin-top:34px;height:150px;display:flex;align-items:center;justify-content:center;border-top:1px solid var(--line);padding-top:30px;}

  .gauge{display:flex;flex-direction:column;align-items:center;gap:14px;}
  .gauge svg{display:block;}
  .gauge .gtrack{fill:none;stroke:var(--line);stroke-width:10;}
  .gauge .gfill{fill:none;stroke:var(--accent);stroke-width:10;stroke-linecap:round;transition:stroke-dashoffset 1.6s cubic-bezier(.4,0,.1,1);}
  .gauge .glabel{font-family:var(--mono);font-size:11px;letter-spacing:0.1em;color:var(--muted-2);text-transform:uppercase;}

  .bookviz{width:100%;}
  .bookviz .row{display:flex;align-items:center;gap:14px;margin-bottom:13px;}
  .bookviz .rl{font-family:var(--mono);font-size:11.5px;color:var(--muted);width:88px;flex-shrink:0;letter-spacing:0.03em;}
  .bookviz .track{flex:1;height:9px;background:var(--surface-2);position:relative;overflow:hidden;}
  .bookviz .fillbar{position:absolute;left:0;top:0;bottom:0;width:0;transition:width 1.3s cubic-bezier(.4,0,.1,1);}
  .bookviz .rv{font-family:var(--mono);font-size:11.5px;color:var(--muted-2);width:34px;text-align:right;}

  /* comparison */
  .cmp-table{width:100%;border-collapse:collapse;font-size:15px;}
  .cmp-table th,.cmp-table td{padding:18px 20px;text-align:center;border-bottom:1px solid var(--line);}
  .cmp-table thead th{font-family:var(--head);font-weight:600;font-size:16px;color:var(--muted);border-bottom:1px solid var(--line-strong);}
  .cmp-table th.feat,.cmp-table td.feat{text-align:left;font-family:var(--sans);color:var(--text);font-weight:500;width:34%;}
  .cmp-table td.feat{color:var(--muted);font-weight:400;}
  .cmp-table .col-ins{position:relative;background:var(--accent-soft);}
  .cmp-table thead .col-ins{color:#fff;font-weight:700;}
  .cmp-table thead .col-ins::after{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--accent);}
  .cmp-table tbody tr:last-child td{border-bottom:none;}
  .cmp-table .col-ins{border-left:1px solid var(--accent-line);border-right:1px solid var(--accent-line);}
  .cmp-table tbody tr:last-child .col-ins{border-bottom:1px solid var(--accent-line);}
  .yes{color:var(--accent);font-size:18px;font-weight:700;}
  .col-ins .yes{color:#fff;}
  .no{color:var(--muted-2);font-size:16px;}
  .partial{color:var(--teal);font-size:17px;font-weight:600;}
  .cmp-sub{margin-top:30px;font-size:16px;color:var(--muted);line-height:1.6;}
  .cmp-sub b{color:var(--text);font-weight:600;}

  /* founders */
  .founders{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .found-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:8px;}
  .found{padding:36px 34px 0 34px;border-left:1px solid var(--line);}
  .found:first-child{padding-left:0;border-left:none;}
  .found:last-child{padding-right:0;}
  .found .fnum{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:0.1em;}
  .found .frole{font-family:var(--head);font-weight:600;font-size:19px;margin:16px 0 12px;line-height:1.25;}
  .found p{color:var(--muted);font-size:15px;line-height:1.62;}
  .found .ftag{display:block;margin-top:16px;font-family:var(--mono);font-size:11px;letter-spacing:0.05em;color:var(--muted-2);}
  .found-line{margin:56px auto 0;font-family:var(--head);font-size:clamp(22px,2.4vw,30px);font-weight:500;letter-spacing:-0.01em;max-width:760px;line-height:1.3;text-align:center;}
  .found-line .em{color:var(--accent);}

  /* CTA */
  .cta{padding:140px 0 80px;text-align:center;position:relative;overflow:hidden;}
  #cta-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:0.6;}
  .cta-fade{position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(60% 70% at 50% 40%,transparent,var(--bg) 80%);}
  .cta .wrap{z-index:2;}
  .cta h2{font-size:clamp(30px,4vw,52px);max-width:880px;margin:22px auto 0;font-weight:600;}
  .cta .csub{color:var(--muted);font-size:18px;max-width:620px;margin:28px auto 0;line-height:1.6;}

  /* contact form */
  .cform-wrap{margin:48px auto 0;max-width:540px;text-align:left;}
  .cform{display:flex;flex-direction:column;gap:13px;}
  .cform-row{display:grid;grid-template-columns:1fr 1fr;gap:13px;}
  .cform input,.cform select{
    width:100%;min-width:0;
    padding:13px 16px;
    font-family:var(--sans);font-size:15px;font-weight:400;
    color:var(--text);
    background:rgba(255,255,255,0.05);
    border:1px solid var(--line-strong);
    outline:none;
    transition:border-color .18s,background .18s;
    -webkit-appearance:none;
  }
  .cform input::placeholder{color:var(--muted-2);}
  .cform input:focus,.cform select:focus{border-color:var(--accent);background:var(--accent-soft);}
  .cform select{
    cursor:pointer;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5l5 5 5-5' stroke='%231E6FFF' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 14px center;
    padding-right:36px;
    background-color:rgba(255,255,255,0.05);
    color:var(--muted-2);
  }
  .cform select.has-value{color:var(--text);}
  .cform select option{background:#0C1222;color:var(--text);}
  .cform .cform-btn{
    display:flex;align-items:center;justify-content:center;gap:11px;
    font-family:var(--head);font-weight:600;font-size:16px;letter-spacing:0.01em;
    padding:15px 26px;cursor:pointer;border:none;
    background:var(--accent);color:#fff;
    transition:background .18s,transform .18s,box-shadow .18s;
    box-shadow:0 0 0 1px rgba(30,111,255,0.6),0 14px 40px -16px rgba(30,111,255,0.9);
  }
  .cform .cform-btn:hover{background:#3a82ff;transform:translateY(-1px);}
  .cform .cform-btn:disabled{opacity:0.6;cursor:not-allowed;transform:none;}
  .cform-note{margin-top:16px;font-family:var(--mono);font-size:12px;color:var(--muted-2);letter-spacing:0.04em;text-align:center;}
  .cform-note a{color:var(--accent);}
  .cform-note a:hover{text-decoration:underline;}

  /* success state */
  .cform-success{display:none;text-align:center;padding:32px 0;}
  .cform-success.show{display:block;}
  .cform-success .sicon{
    width:56px;height:56px;border:1.5px solid var(--accent);border-radius:50%;
    display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
    background:var(--accent-soft);
  }
  .cform-success .sicon svg{width:22px;height:22px;stroke:var(--accent);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
  .cform-success h3{font-family:var(--head);font-size:22px;font-weight:600;margin-bottom:10px;}
  .cform-success p{color:var(--muted);font-size:15px;}

  footer.foot{border-top:1px solid var(--line);padding:36px 0;}
  .foot-inner{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;}
  .foot-inner .brand{font-size:16px;}
  .foot-meta{font-family:var(--mono);font-size:12px;color:var(--muted-2);letter-spacing:0.05em;}

  /* reveal */
  .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1);}
  .reveal.in{opacity:1;transform:none;}
  .reveal.d1{transition-delay:.08s;}
  .reveal.d2{transition-delay:.16s;}
  .reveal.d3{transition-delay:.24s;}

  /* responsive */
  @media (max-width:980px){
    :root{--pad:26px;}
    .layers-wrap{grid-template-columns:1fr;gap:34px;}
    .found-line{margin-top:44px;}
  }
  @media (max-width:760px){
    body{font-size:16px;}
    .nav-links a.lnk{display:none;}
    .prob-grid{grid-template-columns:1fr;gap:0;}
    .prob{border-left:none;border-top:1px solid var(--line);padding:32px 0;}
    .prob:first-child{border-top:none;padding-top:0;}
    .prod-grid{grid-template-columns:1fr;}
    .found-grid{grid-template-columns:1fr;}
    .found{border-left:none;border-top:1px solid var(--line);padding:30px 0;}
    .found:first-child{border-top:none;}
    .hero-stat-rail{grid-template-columns:1fr 1fr;}
    .cmp-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;}
    .cmp-table{min-width:640px;}
    .sec{padding:80px 0;}
    .hero h1{font-size:42px;}
  }

/* utility helpers — extracted from former inline style attributes so a strict CSP (no 'unsafe-inline') can apply */
.fillbar.accent{background:var(--accent);}
.fillbar.teal{background:var(--teal);}
.eyebrow.center{justify-content:center;}