:root{--bg:#f7f7f5;--fg:#1e1f22;--muted:#5f6368;--accent:#2b5fd9;--card:#fff}
*{box-sizing:border-box}html{font-size:16px}
body{margin:0;background:var(--bg);color:var(--fg);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.55}
header{background:var(--card);border-bottom:1px solid #e6e6e3}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}
nav{display:flex;align-items:center;justify-content:space-between;height:60px}
nav a{color:var(--fg);text-decoration:none;margin-left:18px}
nav .brand{font-weight:700;margin-left:0;letter-spacing:.2px}
main{padding:44px 0 60px}
h1{font-size:2rem;margin:0 0 10px}h2{font-size:1.25rem;margin:34px 0 8px}
p{margin:0 0 14px;color:#2c2d30}.muted{color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:22px}
.card{background:var(--card);border:1px solid #e6e6e3;border-radius:10px;padding:18px}
.card h3{margin:0 0 6px;font-size:1.05rem}
footer{border-top:1px solid #e6e6e3;padding:18px 0;color:var(--muted);font-size:.9rem}
a.btn{display:inline-block;background:var(--accent);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none;margin-top:8px}
@media (max-width:600px){nav a{margin-left:12px}h1{font-size:1.6rem}}