:root{--bg:#fbf6ea;--card:#fffdf7;--ink:#2f2416;--muted:#6b5a43;--accent:#3e8e2f;--line:#eadfc6}
@media (prefers-color-scheme:dark){:root{--bg:#1d1a14;--card:#27231b;--ink:#f3ead7;--muted:#c4b393;--accent:#8fd27d;--line:#3a3327}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}
header{margin-bottom:28px}
h1{font-size:2rem;line-height:1.2;margin:0 0 6px}
h2{font-size:1.2rem;margin:32px 0 8px}
p,li{color:var(--ink)}
.sub{color:var(--muted);margin:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:18px 0}
a{color:var(--accent)}
nav{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px}
footer{margin-top:48px;color:var(--muted);font-size:.9rem}