:root{--bg:#fbfaf7;--fg:#222;--muted:#666;--accent:#b5523b}
@media (prefers-color-scheme:dark){:root{--bg:#18181a;--fg:#eee;--muted:#aaa;--accent:#e08a72}}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,Segoe UI,sans-serif}
main{max-width:720px;margin:0 auto;padding:32px 16px 64px}
h1{font-size:1.8rem;margin:0 0 .5rem}h2{font-size:1.15rem;margin:2rem 0 .4rem}
a{color:var(--accent)}nav{display:flex;gap:16px;margin-bottom:24px;font-weight:600}
footer{margin-top:48px;color:var(--muted);font-size:.9rem}