:root{--bg:#fafaf8;--fg:#1c1c1e;--muted:#5f6368;--line:#e3e3df;--accent:#2f5d50}
@media (prefers-color-scheme:dark){:root{--bg:#121214;--fg:#ececec;--muted:#a0a0a8;--line:#2a2a2e;--accent:#8fc4b3}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}
main{max-width:720px;margin:0 auto;padding:48px 16px 64px}
header a{color:var(--fg);text-decoration:none;font-weight:700;letter-spacing:.02em}
h1{font-size:2rem;line-height:1.2;margin:40px 0 8px}
h2{font-size:1.15rem;margin:32px 0 8px}
p,li{color:var(--fg)}
.muted{color:var(--muted)}
a{color:var(--accent)}
.card{border:1px solid var(--line);border-radius:12px;padding:20px;margin:24px 0}
dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;margin:0}
dt{color:var(--muted)}dd{margin:0}
footer{border-top:1px solid var(--line);margin-top:48px;padding-top:16px;font-size:.9rem;color:var(--muted)}
footer a{color:var(--muted)}