:root{
    /* OBSIDIAN (dark) — the primary world */
    --void:#05070b;
    --void-2:#080b11;
    --surface:#0c1017;
    --glass:#0e131c;
    --ice:#eef4f7;
    --ice-soft:#9cadba;
    --ice-faint:#5a6a77;
    --line:#eef4f712;
    --line-2:#eef4f71f;
    --glow:#5fe6ff;
    --glow-deep:#2ea6c4;
    --halo:#5fe6ff26;
    --shadow:0 30px 80px -40px #000000;
  }
  @media (prefers-color-scheme: light){
    :root{
      /* PLATINUM (light) — architectural daylight */
      --void:#e9edf0;
      --void-2:#eef1f4;
      --surface:#ffffff;
      --glass:#ffffff;
      --ice:#070a10;
      --ice-soft:#46545f;
      --ice-faint:#8695a1;
      --line:#070a1012;
      --line-2:#070a1020;
      --glow:#0a8fb0;
      --glow-deep:#0a8fb0;
      --halo:#0a8fb01a;
      --shadow:0 24px 60px -38px #1b2a3355;
    }
  }
  :root[data-theme="dark"]{
    --void:#05070b;--void-2:#080b11;--surface:#0c1017;--glass:#0e131c;--ice:#eef4f7;--ice-soft:#9cadba;
    --ice-faint:#5a6a77;--line:#eef4f712;--line-2:#eef4f71f;--glow:#5fe6ff;--glow-deep:#2ea6c4;
    --halo:#5fe6ff26;--shadow:0 30px 80px -40px #000000;
  }
  :root[data-theme="light"]{
    --void:#e9edf0;--void-2:#eef1f4;--surface:#ffffff;--glass:#ffffff;--ice:#070a10;--ice-soft:#46545f;
    --ice-faint:#8695a1;--line:#070a1012;--line-2:#070a1020;--glow:#0a8fb0;--glow-deep:#0a8fb0;
    --halo:#0a8fb01a;--shadow:0 24px 60px -38px #1b2a3355;
  }

  *{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;background:var(--void);color:var(--ice);
    font:300 17px/1.7 ui-sans-serif,system-ui,"Helvetica Neue",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
    -webkit-font-smoothing:antialiased;letter-spacing:.005em;
  }
  .mono{font-family:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace}
  .wrap{max-width:1040px;margin:0 auto;padding:0 30px}
  section{padding:104px 0;border-top:1px solid var(--line)}

  .eyebrow{
    font-family:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
    font-size:11px;letter-spacing:.34em;text-transform:uppercase;color:var(--glow);font-weight:500;
    margin:0 0 26px;display:flex;align-items:center;gap:14px;
  }
  .eyebrow::before{content:"";width:26px;height:1px;background:var(--glow)}
  h2.title{font-size:clamp(28px,4vw,44px);line-height:1.12;margin:0 0 18px;font-weight:300;letter-spacing:-.015em;text-wrap:balance}
  h2.title b{font-weight:500;color:var(--ice)}
  .lead{font-size:20px;color:var(--ice-soft);max-width:60ch;margin:0;font-weight:300}

  /* ---------- HERO ---------- */
  .hero{position:relative;border-top:0;padding:0;overflow:hidden;background:var(--void)}
  #field{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0}
  .hero-glow{position:absolute;left:50%;top:38%;width:1100px;height:1100px;transform:translate(-50%,-50%);
    background:radial-gradient(circle,var(--halo) 0%,transparent 62%);z-index:0;pointer-events:none;filter:blur(6px)}
  .hero-inner{position:relative;z-index:2;max-width:1040px;margin:0 auto;padding:120px 30px 108px;text-align:center}
  .company{font-family:"SF Mono",ui-monospace,Menlo,monospace;font-size:11px;letter-spacing:.34em;text-transform:uppercase;color:var(--ice-faint);margin:0 0 46px}

  .aperture{width:132px;height:132px;margin:0 auto 40px;position:relative}
  .aperture svg{width:100%;height:100%;display:block;color:var(--glow);
    filter:drop-shadow(0 0 18px color-mix(in srgb,var(--glow) 55%,transparent))}
  .ring-rot{transform-origin:24px 24px;animation:spin 26s linear infinite}
  .ring-rot2{transform-origin:24px 24px;animation:spin 40s linear infinite reverse}
  .core-breathe{transform-origin:24px 24px;animation:breathe 4.6s ease-in-out infinite}
  @keyframes spin{to{transform:rotate(360deg)}}
  @keyframes breathe{0%,100%{opacity:.55;transform:scale(.86)}50%{opacity:1;transform:scale(1.08)}}

  .wordmark{margin:0 0 4px;font-size:clamp(44px,9vw,92px);font-weight:200;letter-spacing:.42em;
    text-indent:.42em;color:var(--ice);line-height:1}
  .tagline{font-family:"SF Mono",ui-monospace,Menlo,monospace;font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--glow);margin:0 0 40px}
  .thesis{font-size:clamp(23px,3vw,34px);line-height:1.32;max-width:20ch;margin:0 auto;font-weight:300;text-wrap:balance;color:var(--ice)}
  .thesis b{font-weight:500}
  .thesis .dim{color:var(--ice-soft)}
  .subthesis{margin:30px auto 0;max-width:52ch;color:var(--ice-soft);font-size:18px}
  .creds{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 26px;margin-top:52px;
    font-family:"SF Mono",ui-monospace,monospace;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--ice-faint)}
  .creds span{display:inline-flex;align-items:center;gap:9px}
  .creds i{width:5px;height:5px;border-radius:50%;background:var(--glow);display:inline-block;box-shadow:0 0 8px var(--glow)}

  /* ---------- PROMISE ---------- */
  .promise{max-width:760px;margin:0 auto;text-align:center}
  .promise .big{font-size:clamp(26px,3.4vw,38px);font-weight:300;line-height:1.3;letter-spacing:-.01em;text-wrap:balance;margin:0}
  .promise .big b{font-weight:500}
  .promise .big .accent{color:var(--glow)}
  .promise p{margin:26px auto 0;max-width:56ch;color:var(--ice-soft);font-size:18px}

  /* ---------- INTELLIGENCE (one loop) ---------- */
  .facs{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-2);
    border:1px solid var(--line-2);border-radius:16px;overflow:hidden}
  .fac{background:var(--surface);padding:34px 28px 32px;position:relative}
  .fac .n{font-family:"SF Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.2em;color:var(--ice-faint)}
  .fac .ic{width:44px;height:44px;color:var(--glow);margin:20px 0 20px}
  .fac h3{margin:0 0 3px;font-size:22px;font-weight:400;letter-spacing:-.01em}
  .fac .k{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--glow);font-family:"SF Mono",ui-monospace,monospace;margin-bottom:14px}
  .fac p{margin:0;color:var(--ice-soft);font-size:14.5px;line-height:1.6;font-weight:300}
  .fac .plat{margin-top:18px;font-family:"SF Mono",ui-monospace,monospace;font-size:10.5px;letter-spacing:.12em;color:var(--ice-faint)}
  .loopcap{text-align:center;margin:22px 0 0;font-family:"SF Mono",ui-monospace,monospace;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--ice-faint)}
  .loopcap b{color:var(--glow);font-weight:500}

  /* ---------- SYSTEM ---------- */
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
  .panel{background:var(--surface);border:1px solid var(--line-2);border-radius:16px;padding:28px}
  .panel h3{margin:0 0 20px;font-family:"SF Mono",ui-monospace,monospace;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--glow);font-weight:500}
  .swatches{display:flex;flex-direction:column;gap:11px}
  .sw{display:flex;align-items:center;gap:14px}
  .sw .chip{width:50px;height:50px;border-radius:9px;flex:0 0 auto;border:1px solid var(--line-2)}
  .sw .nm{font-weight:400;font-size:15px}
  .sw .hx{font-family:ui-monospace,monospace;font-size:12px;color:var(--ice-faint)}
  .sw .use{font-size:12.5px;color:var(--ice-soft);font-weight:300}
  .sw .meta{display:flex;flex-direction:column;line-height:1.4}
  .type-row{padding:16px 0;border-top:1px solid var(--line)}
  .type-row:first-of-type{border-top:0;padding-top:0}
  .type-row .lbl{font-family:ui-monospace,monospace;font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--ice-faint);margin-bottom:10px}
  .t-display{font-size:30px;font-weight:200;letter-spacing:.3em;text-indent:.3em;margin:0;color:var(--ice)}
  .t-body{font-size:17px;color:var(--ice-soft);margin:0;font-weight:300}
  .t-data{font-family:"SF Mono",ui-monospace,monospace;font-size:14px;color:var(--glow);margin:0;letter-spacing:.04em}

  /* ---------- MARK ---------- */
  .markrow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
  .markcard{background:var(--surface);border:1px solid var(--line-2);border-radius:16px;padding:30px 22px;display:flex;flex-direction:column;align-items:center;gap:16px}
  .markcard.on{background:var(--ice);border-color:var(--ice)}
  .markcard.on svg{color:var(--void)}
  .markcard.on .cap{color:#00000066}
  .markcard.on .lw{color:var(--void)}
  .markcard svg{width:58px;height:58px;color:var(--glow)}
  .markcard .cap{font-family:ui-monospace,monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ice-faint);text-align:center;line-height:1.5}
  .lock{display:flex;align-items:center;gap:14px}
  .lock svg{width:34px;height:34px}
  .lock .lw{font-size:22px;font-weight:200;letter-spacing:.32em;text-indent:.32em;color:var(--ice)}

  /* ---------- COMPARE ---------- */
  .compare{border:1px solid var(--line-2);border-radius:16px;overflow:hidden;background:var(--surface)}
  .compare .row{display:grid;grid-template-columns:110px 1fr 1fr 1fr;border-top:1px solid var(--line)}
  .compare .row:first-child{border-top:0}
  .compare .row>div{padding:14px 18px;border-left:1px solid var(--line);font-size:13.5px;color:var(--ice-soft)}
  .compare .row>div:first-child{border-left:0}
  .compare .rl{font-family:ui-monospace,monospace;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ice-faint);align-self:center}
  .compare .head>div{font-weight:500;color:var(--ice);font-size:14px;background:var(--void-2)}
  .compare .head .me{color:var(--glow)}
  .compare .cell b{color:var(--ice);font-weight:500}

  footer{padding:56px 0 76px;border-top:1px solid var(--line);color:var(--ice-faint);font-size:13px}
  footer .mono{color:var(--ice-soft)}

  @media (max-width:820px){
    .grid2{grid-template-columns:1fr;gap:20px}
    .facs{grid-template-columns:1fr}
    .markrow{grid-template-columns:1fr 1fr}
    .compare .row{grid-template-columns:92px 1fr 1fr 1fr}
    .compare .row>div{padding:11px 12px;font-size:12px}
    section{padding:72px 0}
  }
  @media (prefers-reduced-motion:reduce){
    .ring-rot,.ring-rot2,.core-breathe{animation:none}
  }
  @media (prefers-reduced-motion:no-preference){
    .reveal{opacity:0;transform:translateY(14px);transition:opacity .8s ease,transform .8s ease}
    .reveal.in{opacity:1;transform:none}
  }