:root{--bg:#fbfaf7;--fg:#1d1d1b;--muted:#5d5b55;--accent:#2f7d5b;--rule:#e4e1d8}
@media (prefers-color-scheme:dark){:root{--bg:#141413;--fg:#ecebe6;--muted:#a8a69e;--accent:#6cc79c;--rule:#2c2b28}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
main{max-width:720px;margin:0 auto;padding:40px 16px 64px}
h1{font-size:2rem;margin:0 0 4px}h2{font-size:1.2rem;margin:2rem 0 .5rem;padding-top:1rem;border-top:1px solid var(--rule)}
p,li{color:var(--fg)}.meta{color:var(--muted);margin:0 0 1.5rem}
a{color:var(--accent)}ul{padding-left:1.25rem}
nav{display:flex;gap:16px;margin-bottom:32px;font-weight:600}nav a{text-decoration:none}
.summary{background:color-mix(in srgb,var(--accent) 10%,transparent);border-radius:12px;padding:16px 20px}
footer{margin-top:48px;color:var(--muted);font-size:.9rem}