:root { --bg: #ffffff; --text: #1d1f23; --muted: #5f6368; --link: #1a5fd0; }
@media (prefers-color-scheme: dark) { :root { --bg: #121316; --text: #ecedef; --muted: #a3a8b3; --link: #8db8ff; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 720px; margin: 0 auto; padding: 40px 16px 64px; }
h1 { font-size: 28px; margin: 0 0 4px; }
h2 { font-size: 19px; margin: 32px 0 8px; }
.meta { color: var(--muted); margin: 0 0 24px; }
a { color: var(--link); }
code { font-size: 15px; word-break: break-all; }
nav { margin-top: 40px; color: var(--muted); }