:root { color-scheme: light dark; --bg: #f5f5f5; --fg: #111113; --muted: #5c5c66; --line: #dcdce0; --link: #3d3db8; }
@media (prefers-color-scheme: dark) { :root { --bg: #111113; --fg: #ededf0; --muted: #a0a0ab; --line: #2c2c33; --link: #a5a5f5; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 42rem; margin: 0 auto; padding: 3rem 1rem 4rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 .5rem; }
h2 { font-size: 1.2rem; margin: 2.2rem 0 .4rem; }
p, li { color: var(--fg); }
.lead { color: var(--muted); font-size: 1.1rem; margin-top: 0; }
.note { color: var(--muted); font-size: .95rem; }
a { color: var(--link); }
nav { border-top: 1px solid var(--line); margin-top: 3rem; padding-top: 1rem; font-size: .95rem; }
nav a { margin-right: 1rem; }
code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .92em; }