:root{--bg:#fafaf9;--fg:#1c1917;--muted:#57534e;--line:#e7e5e4;--accent:#0f766e}
@media (prefers-color-scheme:dark){:root{--bg:#0c0a09;--fg:#f5f5f4;--muted:#a8a29e;--line:#292524;--accent:#2dd4bf}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif}
main{max-width:680px;margin:0 auto;padding:56px 16px}h1{font-size:2rem;margin:0 0 8px;letter-spacing:-.02em}
h2{font-size:1.1rem;margin:32px 0 8px}p,li{color:var(--muted)}a{color:var(--accent)}
footer{border-top:1px solid var(--line);margin-top:48px;padding-top:16px;font-size:.9rem;color:var(--muted)}
footer a{margin-right:16px}