:root{--bg:#fafaf7;--fg:#1d1d1b;--muted:#6b6b66;--link:#2457a6;--line:#e2e1da}
@media (prefers-color-scheme:dark){:root{--bg:#141413;--fg:#ecebe6;--muted:#9c9b95;--link:#8fb4ee;--line:#2c2c29}}
*{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}
main{max-width:680px;margin:0 auto;padding:48px 16px 64px}
h1{font-size:2rem;margin:0 0 8px}
h2{font-size:1.1rem;margin:32px 0 8px}
.lead{font-size:1.15rem;color:var(--muted)}
.meta{color:var(--muted);font-size:.9rem}
a{color:var(--link)}
nav{display:flex;gap:20px;margin:32px 0;flex-wrap:wrap}
footer{border-top:1px solid var(--line);padding-top:16px;color:var(--muted);font-size:.9rem}
ul{padding-left:20px}