:root { color-scheme: light dark; --fg: #1c1c1e; --muted: #6b6b70; --bg: #ffffff; --line: #e3e3e6; --link: #0a66c2; }
@media (prefers-color-scheme: dark) { :root { --fg: #f2f2f4; --muted: #a1a1a8; --bg: #111113; --line: #2c2c30; --link: #6cb2ff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; -webkit-text-size-adjust: 100%; }
header.site, main, footer.site { max-width: 720px; margin: 0 auto; padding: 0 20px; }
header.site { display: flex; align-items: center; justify-content: space-between; padding-top: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
header.site .brand { font-weight: 700; font-size: 20px; color: var(--fg); text-decoration: none; }
header.site nav a { margin-left: 16px; color: var(--muted); text-decoration: none; font-size: 15px; }
header.site nav a:hover { color: var(--fg); }
main { padding-top: 12px; padding-bottom: 40px; }
h1 { font-size: 30px; line-height: 1.25; margin: 24px 0 8px; }
h2 { font-size: 22px; margin: 32px 0 8px; }
h3 { font-size: 18px; margin: 24px 0 6px; }
a { color: var(--link); }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 15px; display: block; overflow-x: auto; }
th, td { border: 1px solid var(--line); padding: 6px 10px; text-align: left; vertical-align: top; }
code { font-size: 0.92em; }
footer.site { color: var(--muted); font-size: 14px; padding-top: 16px; padding-bottom: 32px; border-top: 1px solid var(--line); }
footer.site a { color: var(--muted); }