:root{--fg:#0f172a;--bg:#fff;--muted:#475569;--border:#e2e8f0;--brand:#2563eb;--card:#f8fafc}
*{box-sizing:border-box}html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;color:var(--fg);background:var(--bg)}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:24px}
.nav{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;margin:12px 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.footer{margin-top:48px;padding:16px 0;border-top:1px solid var(--border);color:var(--muted);font-size:.9rem}
.small{color:var(--muted);font-size:.9rem}