:root{--bg:#F7F4EE;--ink:#1D2A2A;--muted:#5B6767;--accent:#0E6B66;--line:#DDD6CA}
@media (prefers-color-scheme:dark){:root{--bg:#121818;--ink:#ECE8E1;--muted:#A3ADAB;--accent:#5CC2B9;--line:#2A3434}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:48px 20px 64px}h1{font-size:30px;line-height:1.2;margin:0 0 8px}h2{font-size:20px;margin:32px 0 8px}
p,li{color:var(--ink)}.muted{color:var(--muted);font-size:15px}a{color:var(--accent)}nav{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:36px;font-size:15px}
hr{border:0;border-top:1px solid var(--line);margin:40px 0}