:root{--bg:#fafafa;--fg:#1c1b1f;--muted:#5f6368;--brand:#1565C0;--card:#fff;--line:#dadce0}
@media (prefers-color-scheme:dark){:root{--bg:#121212;--fg:#e6e1e5;--muted:#a9a9b0;--brand:#90caf9;--card:#1e1e1e;--line:#3a3a3d}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
header{background:#1565C0;color:#fff;padding:1.25rem 1rem}
header h1{margin:0 auto;max-width:42rem;font-size:1.4rem}
main{max-width:42rem;margin:0 auto;padding:1rem}
h2{color:var(--brand);margin-top:2rem;font-size:1.2rem}
a{color:var(--brand)}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.25rem 1rem;margin:.75rem 0}
.disclaimer,footer{color:var(--muted);font-size:.9rem}
footer{max-width:42rem;margin:0 auto;padding:1rem 1rem 2rem}
nav a{margin-right:1rem}