:root{--fg:#1d2433;--muted:#5b6475;--accent:#b8860b;--bg:#fbfaf7;--card:#fff;--line:#e7e3da}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--fg);background:var(--bg);line-height:1.6}
a{color:#7a5a00}header{border-bottom:1px solid var(--line);background:var(--card)}
.wrap{max-width:880px;margin:0 auto;padding:0 20px}
header .wrap{display:flex;justify-content:space-between;align-items:center;padding-top:16px;padding-bottom:16px}
.brand{font-weight:700;font-size:1.15rem;color:var(--fg);text-decoration:none}
nav a{margin-left:16px;color:var(--muted);text-decoration:none}nav a:hover{color:var(--fg)}
.hero{padding:56px 0 24px}.hero h1{font-size:2.2rem;margin:0 0 12px}.hero p{font-size:1.1rem;color:var(--muted);max-width:640px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;padding:16px 0 48px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px}.card h3{margin:0 0 6px;font-size:1.05rem}.card p{margin:0;color:var(--muted);font-size:.95rem}
main.doc{padding:40px 0 56px}main.doc h1{margin-top:0}main.doc h2{font-size:1.2rem;margin-top:28px}
footer{border-top:1px solid var(--line);background:var(--card);color:var(--muted);font-size:.9rem}
footer .wrap{padding-top:20px;padding-bottom:20px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between}