:root{--bg:#0f1115;--card:#171a21;--ink:#f3f4f6;--muted:#a1a7b3;--acc:#22c55e}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}
.wrap{max-width:880px;margin:0 auto;padding:0 20px}
header{padding:28px 0;font-weight:700;font-size:20px}
.hero{padding:56px 0 40px}.hero h1{font-size:clamp(30px,5vw,46px);line-height:1.15;margin:0 0 16px}
.hero p{color:var(--muted);font-size:18px;max-width:620px}
.btn{display:inline-block;margin-top:20px;background:var(--acc);color:#04130a;font-weight:700;padding:14px 22px;border-radius:10px;text-decoration:none}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;padding:24px 0 56px}
.card{background:var(--card);border-radius:12px;padding:20px}.card h3{margin:0 0 6px;font-size:17px}.card p{margin:0;color:var(--muted);font-size:15px}
footer{border-top:1px solid #262a33;padding:28px 0 40px;color:var(--muted);font-size:14px}
footer a{color:var(--ink)}
.doc{padding:24px 0 56px}.doc h1{font-size:30px}.doc h2{font-size:19px;margin-top:28px}.doc p,.doc li{color:#d6d9df}