:root{
  --bg:#0b0c0e;--surface:#131519;--line:#23262d;--fg:#ececec;--muted:#9097a3;--accent:#e8e3d6;
  --max:960px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 "Inter",system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--fg);text-decoration:underline;text-decoration-color:var(--line);text-underline-offset:3px}
a:hover{text-decoration-color:var(--fg)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:.85rem;text-decoration:none}
nav{display:flex;gap:24px;font-size:.9rem}
nav a{color:var(--muted);text-decoration:none}
nav a:hover{color:var(--fg)}
.hero{padding:120px 0 96px}
.eyebrow{color:var(--muted);font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;margin:0 0 20px}
h1{font-size:clamp(2.4rem,6vw,4.2rem);line-height:1.05;letter-spacing:-.03em;margin:0 0 24px;font-weight:600}
.lead{font-size:1.15rem;color:var(--muted);max-width:620px;margin:0}
section{padding:72px 0;border-top:1px solid var(--line)}
h2{font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:500;margin:0 0 32px}
h3{font-size:1.5rem;letter-spacing:-.01em;margin:0 0 12px;font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.cell{background:var(--bg);padding:28px}
.cell h4{margin:0 0 8px;font-size:1rem;font-weight:600}
.cell p{margin:0;color:var(--muted);font-size:.95rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:40px}
.card p{color:var(--muted);margin:0 0 20px;max-width:620px}
.links{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;padding:10px 18px;border:1px solid var(--line);border-radius:999px;text-decoration:none;font-size:.9rem}
.btn:hover{border-color:var(--fg)}
dl{display:grid;grid-template-columns:minmax(140px,220px) 1fr;margin:0;border-top:1px solid var(--line)}
dt,dd{padding:14px 0;border-bottom:1px solid var(--line);margin:0}
dt{color:var(--muted);font-size:.9rem;padding-right:16px}
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:.85rem}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px}
footer a{color:var(--muted)}
.doc{padding:80px 0}
.doc h1{font-size:clamp(2rem,5vw,3rem)}
.doc h2{margin:48px 0 12px;font-size:1.1rem;letter-spacing:0;text-transform:none;color:var(--fg);font-weight:600}
.doc p,.doc li{color:#c9ccd2;max-width:720px}
.doc .updated{color:var(--muted);font-size:.9rem}
@media (max-width:640px){
  .wrap{padding:0 16px}
  nav{gap:14px;font-size:.85rem}
  nav .hide-sm{display:none}
  .hero{padding:72px 0 56px}
  section{padding:56px 0}
  .card{padding:24px}
  dl{grid-template-columns:1fr}
  dt{border-bottom:0;padding-bottom:0}
}