:root { color-scheme: light dark; --fg: #18181b; --bg: #ffffff; --muted: #52525b; --line: #e4e4e7; --link: #1d4ed8; }
@media (prefers-color-scheme: dark) { :root { --fg: #f4f4f5; --bg: #18181b; --muted: #a1a1aa; --line: #3f3f46; --link: #93c5fd; } }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--fg); background: var(--bg); }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 16px; }
header { border-bottom: 1px solid var(--line); }
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
nav a { margin-left: 16px; }
main { padding-top: 32px; padding-bottom: 32px; }
h1 { font-size: 2rem; margin: 0 0 8px; }
h2 { font-size: 1.2rem; margin: 32px 0 8px; }
.lead { color: var(--muted); font-size: 1.1rem; }
a { color: var(--link); }
code { background: var(--line); padding: 1px 5px; border-radius: 4px; font-size: .9em; word-break: break-all; }
ul { padding-left: 20px; }
li { margin: 6px 0; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; padding: 16px 0 32px; }