:root{--bg:#09090b;--surface:#131316;--surface-2:#1c1c21;--border:#2a2a31;--fg:#f4f4f5;--muted:#a1a1aa;--subtle:#71717a;--accent:#22c55e;--on-accent:#04210f;color-scheme:dark}
*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--fg)}
body{font-family:'Heebo',system-ui,-apple-system,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--fg)}a:focus-visible,button:focus-visible{outline:2px solid var(--fg);outline-offset:3px;border-radius:8px}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
header.top{display:flex;align-items:center;justify-content:space-between;padding:20px 0}
.mark{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:20px;text-decoration:none;letter-spacing:-.02em}
.mark img{width:32px;height:32px;border-radius:8px}
nav.links{display:flex;gap:20px;font-size:15px}nav.links a{color:var(--muted);text-decoration:none}nav.links a:hover{color:var(--fg)}
.hero{padding:72px 0 48px}.hero h1{font-size:clamp(34px,7vw,56px);line-height:1.1;margin:0 0 16px;letter-spacing:-.02em}
.hero p{font-size:19px;color:var(--muted);max-width:36ch;margin:0 0 28px}
.btn{display:inline-flex;align-items:center;gap:10px;min-height:52px;padding:0 22px;border-radius:999px;font-weight:700;text-decoration:none;font-size:16px;border:1px solid var(--border);background:var(--surface-2);color:var(--fg);transition:background .2s}
.btn.primary{background:var(--accent);color:var(--on-accent);border-color:transparent}.btn.primary:hover{background:#2fd96b}
.btn[aria-disabled=true]{opacity:.5;pointer-events:none}
.grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));padding:24px 0 64px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px}
.card h2{font-size:17px;margin:0 0 6px}.card p{margin:0;color:var(--muted);font-size:15px}
.doc{padding:24px 0 64px}.doc h1{font-size:32px;margin:24px 0 4px}.doc h2{font-size:19px;margin:32px 0 8px}
.doc p,.doc li{color:#d4d4d8}.doc .meta{color:var(--subtle);font-size:14px}
.doc hr{border:0;border-top:1px solid var(--border);margin:48px 0}
[dir=ltr]{text-align:left}
footer{border-top:1px solid var(--border);padding:24px 0 40px;color:var(--subtle);font-size:14px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}
footer a{color:var(--subtle)}
.center{min-height:80dvh;display:grid;place-content:center;text-align:center;gap:16px}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
.in{min-height:48px;padding:0 14px;border-radius:10px;background:var(--bg);border:1px solid var(--border);color:var(--fg);font:inherit;font-size:16px}.in:focus{outline:none;border-color:var(--muted)}