:root{--bg:#0d1117;--card:#151b23;--text:#e6edf3;--muted:#9da7b3;--accent:#c9a227}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--accent)}header,footer,main{max-width:960px;margin:0 auto;padding:24px 16px}
header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #222a33}
.logo{font-weight:700;letter-spacing:.08em}.logo span{color:var(--accent)}
nav a{margin-left:16px;color:var(--muted);text-decoration:none}nav a:hover{color:var(--text)}
.hero{padding:64px 0 32px}.hero h1{font-size:2.2rem;margin:0 0 12px}.hero p{color:var(--muted);font-size:1.1rem;max-width:640px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:32px 0}
.card{background:var(--card);border:1px solid #222a33;border-radius:12px;padding:20px}.card h3{margin-top:0}
.info{background:var(--card);border-radius:12px;padding:20px;border:1px solid #222a33}
footer{border-top:1px solid #222a33;color:var(--muted);font-size:.9rem}footer a{margin-right:16px}
.doc h1{margin-top:8px}.doc h2{margin-top:28px;font-size:1.2rem}