:root{
    --graphite:#111418;
    --graphite-2:#171B21;
    --graphite-3:#1E242C;
    --line:#2A323C;
    --offwhite:#F4F3EF;
    --muted:#98A2AE;
    --muted-2:#6B7480;
    --cyan:#12B5A5;
    --cyan-dim:#0E8E82;
    --amber:#E8A33D;
    --amber-dim:#CE8B27;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    background:var(--graphite);
    color:var(--offwhite);
    font-family:'Inter',system-ui,sans-serif;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  .mono{font-family:'JetBrains Mono',monospace}
  .wrap{max-width:1200px;margin:0 auto;padding:0 32px}

  /* ---- NAV ---- */
  nav{
    position:sticky;top:0;z-index:50;
    background:rgba(17,20,24,.82);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
  .logo{display:flex;align-items:center;gap:11px;font-family:'Space Grotesk';font-weight:600;font-size:19px;letter-spacing:-.01em}
  .logo-mark{width:26px;height:26px;flex:none}
  .nav-links{display:flex;gap:34px;align-items:center}
  .nav-links a{color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:500;transition:color .2s}
  .nav-links a:hover{color:var(--offwhite)}
  .nav-cta{
    font-family:'Space Grotesk';font-weight:600;font-size:14px;
    background:var(--amber);color:#1A1206;
    padding:10px 18px;border-radius:6px;text-decoration:none;
    transition:background .2s,transform .2s;
  }
  .nav-cta:hover{background:var(--amber-dim)}
  .nav-toggle{display:none;background:none;border:none;color:var(--offwhite);cursor:pointer}

  /* ---- HERO ---- */
  .hero{position:relative;padding:88px 0 96px;overflow:hidden}
  .hero-grid{
    position:absolute;inset:0;
    background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
    background-size:56px 56px;
    opacity:.28;
    -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 35%,#000 30%,transparent 78%);
    mask-image:radial-gradient(ellipse 80% 60% at 50% 35%,#000 30%,transparent 78%);
  }
  .hero-inner{position:relative;z-index:2}
  .eyebrow{
    display:inline-flex;align-items:center;gap:9px;
    font-family:'JetBrains Mono';font-size:12.5px;letter-spacing:.04em;
    color:var(--cyan);
    border:1px solid var(--line);border-radius:100px;
    padding:6px 14px;margin-bottom:28px;
  }
  .eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 rgba(18,181,165,.6);animation:pulse 2.4s infinite}
  @keyframes pulse{0%{box-shadow:0 0 0 0 rgba(18,181,165,.5)}70%{box-shadow:0 0 0 9px rgba(18,181,165,0)}100%{box-shadow:0 0 0 0 rgba(18,181,165,0)}}
  h1{
    font-family:'Space Grotesk';
    font-weight:600;
    font-size:clamp(38px,6vw,68px);
    line-height:1.02;
    letter-spacing:-.025em;
    max-width:15ch;
    margin-bottom:26px;
  }
  h1 .accent{color:var(--cyan)}
  .hero-sub{font-size:clamp(17px,2vw,20px);color:var(--muted);max-width:56ch;margin-bottom:38px}
  .hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
  .btn-primary{
    font-family:'Space Grotesk';font-weight:600;font-size:15.5px;
    background:var(--amber);color:#1A1206;
    padding:15px 26px;border-radius:7px;text-decoration:none;
    display:inline-flex;align-items:center;gap:9px;
    transition:background .2s,transform .2s;
  }
  .btn-primary:hover{background:var(--amber-dim);transform:translateY(-1px)}
  .btn-ghost{
    font-family:'Space Grotesk';font-weight:500;font-size:15.5px;
    color:var(--offwhite);border:1px solid var(--line);
    padding:15px 24px;border-radius:7px;text-decoration:none;
    transition:border-color .2s,background .2s;
  }
  .btn-ghost:hover{border-color:var(--cyan);background:var(--graphite-2)}

  /* ---- TRACE SIGNATURE ---- */
  .trace{position:relative;z-index:2;margin-top:66px;border-top:1px solid var(--line);padding-top:30px}
  .trace-label{font-family:'JetBrains Mono';font-size:11.5px;color:var(--muted-2);letter-spacing:.05em;margin-bottom:20px}
  .trace-track{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;position:relative}
  .trace-line{position:absolute;top:15px;left:8%;right:8%;height:1px;background:var(--line)}
  .trace-line::after{content:"";position:absolute;top:0;left:0;height:100%;width:100%;background:linear-gradient(90deg,transparent,var(--cyan),transparent);background-size:38% 100%;background-repeat:no-repeat;animation:travel 3.4s linear infinite}
  @keyframes travel{0%{background-position:-40% 0}100%{background-position:140% 0}}
  .trace-node{position:relative;text-align:center;padding-top:0}
  .trace-node .pt{width:14px;height:14px;border-radius:50%;background:var(--graphite);border:2px solid var(--cyan);margin:8px auto 16px;position:relative;z-index:2}
  .trace-node:nth-child(2) .pt{border-color:var(--amber)}
  .trace-node h4{font-family:'Space Grotesk';font-size:15px;font-weight:600;margin-bottom:4px}
  .trace-node p{font-size:13px;color:var(--muted-2);max-width:22ch;margin:0 auto}

  /* ---- EMBEDDED VIABILITY ---- */
  .viability{position:relative;z-index:2;margin-top:44px;background:var(--graphite-2);border:1px solid var(--line);border-radius:14px;padding:28px 28px 24px;max-width:680px}
  .viability-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
  .vlabel{font-size:11.5px;color:var(--cyan);letter-spacing:.05em}
  .vstep{font-size:11.5px;color:var(--muted-2)}
  .vq{font-family:'Space Grotesk';font-size:20px;font-weight:600;margin-bottom:18px;line-height:1.25}
  .vopts{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
  .vopt{font-family:'Inter';font-size:14.5px;font-weight:500;color:var(--offwhite);background:var(--graphite-3);border:1px solid var(--line);border-radius:8px;padding:11px 16px;cursor:pointer;transition:border-color .2s,background .2s,transform .15s}
  .vopt:hover{border-color:var(--cyan);background:#232b34;transform:translateY(-1px)}
  .vhint{font-size:11.5px;color:var(--muted-2);margin:0}
  .vresult{font-size:15px;color:var(--offwhite);line-height:1.5}
  .vresult strong{color:var(--cyan)}
  .vbar{height:6px;background:var(--graphite-3);border-radius:100px;overflow:hidden;margin:14px 0 18px}
  .vbar span{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--amber));width:0;transition:width .5s ease}

  .strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--graphite-2)}
  .strip-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
  .stat{padding:30px 24px;border-right:1px solid var(--line)}
  .stat:last-child{border-right:none}
  .stat .k{font-family:'Space Grotesk';font-size:15px;font-weight:600;color:var(--cyan);margin-bottom:6px}
  .stat .v{font-size:13.5px;color:var(--muted)}

  /* ---- SECTION SHELL ---- */
  section.block{padding:88px 0}
  .sec-eyebrow{font-family:'JetBrains Mono';font-size:12px;color:var(--cyan);letter-spacing:.05em;margin-bottom:14px}
  h2{font-family:'Space Grotesk';font-weight:600;font-size:clamp(28px,3.6vw,40px);letter-spacing:-.02em;line-height:1.1;margin-bottom:16px;max-width:20ch}
  .sec-lead{color:var(--muted);font-size:17px;max-width:60ch;margin-bottom:48px}

  /* ---- WHO WE HELP ---- */
  .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .card{
    background:var(--graphite-2);border:1px solid var(--line);border-radius:12px;
    padding:30px 26px;transition:border-color .25s,transform .25s;
  }
  .card:hover{border-color:var(--cyan-dim);transform:translateY(-3px)}
  .card .idx{font-family:'JetBrains Mono';font-size:12px;color:var(--muted-2);margin-bottom:18px}
  .card h3{font-family:'Space Grotesk';font-size:20px;font-weight:600;margin-bottom:10px}
  .card p{font-size:14.5px;color:var(--muted)}
  .card .tag{display:inline-block;margin-top:18px;font-family:'JetBrains Mono';font-size:11.5px;color:var(--cyan);border:1px solid var(--line);border-radius:5px;padding:4px 10px}

  /* ---- SERVICES LADDER ---- */
  .ladder{display:flex;flex-direction:column;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
  .rung{display:grid;grid-template-columns:70px 1fr auto;gap:22px;align-items:center;background:var(--graphite-2);padding:24px 28px;transition:background .2s}
  .rung:hover{background:var(--graphite-3)}
  .rung .lvl{font-family:'JetBrains Mono';font-size:13px;color:var(--cyan)}
  .rung .body h3{font-family:'Space Grotesk';font-size:18px;font-weight:600;margin-bottom:3px}
  .rung .body p{font-size:14px;color:var(--muted)}
  .rung .model{font-family:'JetBrains Mono';font-size:12px;color:var(--muted-2);text-align:right;white-space:nowrap}

  /* ---- CTA BAND ---- */
  .cta-band{background:linear-gradient(180deg,var(--graphite-2),var(--graphite));border-top:1px solid var(--line)}
  .cta-inner{text-align:center;padding:80px 0}
  .cta-inner h2{margin:0 auto 14px}
  .cta-inner p{color:var(--muted);font-size:17px;max-width:52ch;margin:0 auto 32px}

  /* ---- FOOTER ---- */
  footer{border-top:1px solid var(--line);background:var(--graphite);padding:52px 0 40px}
  .foot-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:32px;margin-bottom:40px}
  .foot-brand{max-width:34ch}
  .foot-brand .logo{margin-bottom:14px}
  .foot-brand p{font-size:13.5px;color:var(--muted-2)}
  .foot-cols{display:flex;gap:60px;flex-wrap:wrap}
  .foot-col h5{font-family:'Space Grotesk';font-size:13px;font-weight:600;color:var(--offwhite);margin-bottom:14px;letter-spacing:.01em}
  .foot-col a{display:block;color:var(--muted-2);text-decoration:none;font-size:13.5px;margin-bottom:9px;transition:color .2s}
  .foot-col a:hover{color:var(--cyan)}
  .foot-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
  .foot-bottom p{font-size:12px;color:var(--muted-2)}
  .disclaimer{font-size:11.5px;color:var(--muted-2);max-width:70ch;line-height:1.5;margin-top:10px}

  /* ---- RESPONSIVE ---- */
  @media(max-width:860px){
    .nav-links{display:none}
    .nav-toggle{display:block}
    .strip-inner{grid-template-columns:1fr 1fr}
    .stat:nth-child(2){border-right:none}
    .stat{border-bottom:1px solid var(--line)}
    .cards{grid-template-columns:1fr}
    .trace-track{grid-template-columns:1fr;gap:26px}
    .trace-line{display:none}
    .rung{grid-template-columns:52px 1fr;gap:16px}
    .rung .model{grid-column:2;text-align:left;margin-top:6px}
  }
  @media(prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important}
    .trace-line::after{background:var(--cyan-dim);opacity:.5}
  }
  a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}