:root{--bg:#0b0f17;--card:#121826;--text:#e8ecf3;--muted:#9aa4b6;--accent:#3b82f6;--accent2:#22d3ee;--line:#1f2937}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--accent2);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1040px;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:64px}
.logo{font-weight:800;font-size:20px;color:var(--text)}.logo span{color:var(--accent)}
nav a{color:var(--muted);margin-left:20px;font-size:14px}
.hero{padding:96px 0 64px;text-align:center}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.15;margin:0 0 16px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);font-size:18px;max-width:640px;margin:0 auto 32px}
.btn{display:inline-block;background:var(--accent);color:#fff;padding:12px 24px;border-radius:10px;font-weight:600}
.btn:hover{text-decoration:none;opacity:.9}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;padding:32px 0 80px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.card h3{margin:0 0 8px;font-size:17px}.card p{margin:0;color:var(--muted);font-size:15px}
.doc{padding:56px 0 80px;max-width:780px}
.doc h1{margin-top:0}.doc h2{margin-top:36px;font-size:20px}
.doc p,.doc li{color:#cdd4e0}
.muted{color:var(--muted);font-size:14px}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between}
footer a{color:var(--muted);margin-right:16px}