:root{
    --bg:#fafaf9; --surface:#ffffff; --surface-2:#f5f5f4;
    --text:#1c1917; --muted:#57534e; --faint:#78716c;
    --border:#e7e5e4; --border-strong:#d6d3d1;
    --accent:#0969da; --accent-soft:#ddf4ff;
    --ai:#0969da; --data:#0d9488; --story:#d97706;
    --shadow:0 1px 2px rgba(28,25,23,.04),0 8px 24px -12px rgba(28,25,23,.12);
    --shadow-hover:0 2px 4px rgba(28,25,23,.05),0 16px 40px -16px rgba(28,25,23,.22);
    --maxw:960px;
  }
  @media (prefers-color-scheme: dark){
    :root{
      --bg:#0c0a09; --surface:#1c1917; --surface-2:#161311;
      --text:#f5f5f4; --muted:#a8a29e; --faint:#78716c;
      --border:#292524; --border-strong:#3a3531;
      --accent:#58a6ff; --accent-soft:#12283f;
      --ai:#58a6ff; --data:#5eead4; --story:#fcd34d;
      --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6);
      --shadow-hover:0 2px 4px rgba(0,0,0,.5),0 16px 40px -16px rgba(0,0,0,.8);
    }
  }
  :root[data-theme="dark"]{
    --bg:#0c0a09; --surface:#1c1917; --surface-2:#161311;
    --text:#f5f5f4; --muted:#a8a29e; --faint:#78716c;
    --border:#292524; --border-strong:#3a3531;
    --accent:#58a6ff; --accent-soft:#12283f;
    --ai:#58a6ff; --data:#5eead4; --story:#fcd34d;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6);
    --shadow-hover:0 2px 4px rgba(0,0,0,.5),0 16px 40px -16px rgba(0,0,0,.8);
  }
  :root[data-theme="light"]{
    --bg:#fafaf9; --surface:#ffffff; --surface-2:#f5f5f4;
    --text:#1c1917; --muted:#57534e; --faint:#78716c;
    --border:#e7e5e4; --border-strong:#d6d3d1;
    --accent:#0969da; --accent-soft:#ddf4ff;
    --ai:#0969da; --data:#0d9488; --story:#d97706;
    --shadow:0 1px 2px rgba(28,25,23,.04),0 8px 24px -12px rgba(28,25,23,.12);
    --shadow-hover:0 2px 4px rgba(28,25,23,.05),0 16px 40px -16px rgba(28,25,23,.22);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    background:var(--bg);color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
    line-height:1.6;-webkit-font-smoothing:antialiased;
    transition:background .3s,color .3s;
  }
  a{color:inherit;text-decoration:none}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

  /* Nav */
  nav{
    position:sticky;top:0;z-index:50;
    background:color-mix(in srgb,var(--bg) 82%,transparent);
    backdrop-filter:saturate(180%) blur(12px);
    border-bottom:1px solid var(--border);
  }
  .nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
  .brand{font-weight:700;letter-spacing:-.01em;font-size:15px;white-space:nowrap}
  .brand span{color:var(--accent)}
  .nav-links{display:flex;align-items:center;gap:22px;font-size:14px;color:var(--muted)}
  .nav-links a{transition:color .2s}
  .nav-links a:hover{color:var(--text)}
  .theme-btn{
    background:var(--surface-2);border:1px solid var(--border);
    color:var(--muted);width:34px;height:34px;border-radius:9px;
    cursor:pointer;font-size:15px;display:grid;place-items:center;transition:.2s;flex:none;
  }
  .theme-btn:hover{color:var(--text);border-color:var(--border-strong)}

  /* Hero */
  header.hero{padding:88px 0 64px}
  .status{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--surface);border:1px solid var(--border);
    padding:6px 14px;border-radius:999px;font-size:13px;font-weight:500;
    color:var(--muted);box-shadow:var(--shadow);margin-bottom:26px;
  }
  .dot{width:8px;height:8px;border-radius:50%;background:#22c55e;
    box-shadow:0 0 0 0 rgba(34,197,94,.5);animation:pulse 2.4s infinite}
  @keyframes pulse{0%{box-shadow:0 0 0 0 rgba(34,197,94,.45)}70%{box-shadow:0 0 0 7px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
  h1{font-size:clamp(2.2rem,5.6vw,3.5rem);line-height:1.05;letter-spacing:-.03em;font-weight:800}
  .role{margin-top:14px;font-size:clamp(1.05rem,2.4vw,1.3rem);color:var(--muted);font-weight:500}
  .role b{color:var(--text);font-weight:600}
  .lede{margin-top:22px;max-width:620px;font-size:1.08rem;color:var(--muted)}
  .cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px;align-items:center}
  .btn{
    display:inline-flex;align-items:center;gap:9px;
    padding:11px 20px;border-radius:11px;font-size:14.5px;font-weight:600;
    border:1px solid transparent;transition:transform .15s,box-shadow .2s,background .2s;
  }
  .btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow)}
  @media (prefers-color-scheme: dark){.btn-primary{color:#0c0a09}}
  :root[data-theme="dark"] .btn-primary{color:#0c0a09}
  :root[data-theme="light"] .btn-primary{color:#fff}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
  .btn-ghost{background:var(--surface);color:var(--text);border-color:var(--border)}
  .btn-ghost:hover{border-color:var(--border-strong);transform:translateY(-2px)}
  .career{margin-top:18px;font-size:14px;color:var(--faint)}
  .career a{color:var(--accent);font-weight:600}
  .career a:hover{text-decoration:underline}

  /* Sections */
  section{padding:56px 0;border-top:1px solid var(--border)}
  .eyebrow{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
  h2{font-size:clamp(1.5rem,3.5vw,2rem);letter-spacing:-.02em;font-weight:700}
  .section-lede{margin-top:14px;max-width:640px;color:var(--muted);font-size:1.05rem}

  /* Domain groups */
  .group{margin-top:40px}
  .group:first-of-type{margin-top:34px}
  .group-head{display:flex;align-items:center;gap:11px;margin-bottom:18px}
  .group-mark{width:14px;height:14px;border-radius:4px;flex:none}
  .group-title{font-size:1.05rem;font-weight:600;letter-spacing:-.01em}
  .g-ai .group-mark{background:var(--ai)}
  .g-data .group-mark{background:var(--data)}
  .g-story .group-mark{background:var(--story)}

  .cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
  .card{background:var(--surface);border:1px solid var(--border);border-radius:16px;
    padding:22px;box-shadow:var(--shadow);transition:transform .18s,box-shadow .22s,border-color .2s;
    display:flex;flex-direction:column}
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
  .card h3{font-size:1.12rem;letter-spacing:-.01em;font-weight:600;margin-bottom:8px;
    display:flex;align-items:center;flex-wrap:wrap;gap:9px}
  .wip{font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
    color:var(--accent);background:var(--accent-soft);
    border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);
    padding:2px 9px;border-radius:999px;white-space:nowrap;line-height:1.7}
  .card p{color:var(--muted);font-size:.95rem;flex:1}
  .tags{display:flex;flex-wrap:wrap;gap:6px;margin:16px 0 14px}
  .tag{font-size:11.5px;font-weight:600;color:var(--faint);background:var(--surface-2);
    border:1px solid var(--border);padding:3px 9px;border-radius:6px}
  .links{display:flex;gap:16px;font-size:13.5px;font-weight:600}
  .links a{color:var(--accent);display:inline-flex;align-items:center;gap:5px;transition:gap .2s}
  .links a:hover{gap:8px}
  .links a.sec{color:var(--muted)}
  .links a.sec:hover{color:var(--text)}

  /* Footer */
  footer{border-top:1px solid var(--border);padding:44px 0 52px;text-align:center}
  .foot-line{color:var(--muted);font-size:1.05rem}
  .foot-line a{color:var(--accent);font-weight:600}
  .foot-line a:hover{text-decoration:underline}
  .copy{margin-top:24px;font-size:13px;color:var(--faint)}

  @media (max-width:600px){
    header.hero{padding:60px 0 44px}
    .brand{font-size:13.5px;white-space:normal}
    .nav-links{gap:16px}
    section{padding:44px 0}
  }
  @media (max-width:420px){
    .nav-links a{display:none}
  }