:root { color-scheme: light dark; --fg: #1d1d1f; --bg: #fff; --muted: #6e6e73; --link: #0b57d0; --rule: #e5e5ea; }
@media (prefers-color-scheme: dark) { :root { --fg: #f2f2f7; --bg: #121214; --muted: #a1a1a6; --link: #8ab4f8; --rule: #2c2c2e; } }
* { box-sizing: border-box; }
html { font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; }
body { margin: 0 auto; max-width: 42rem; padding: 3rem 1.25rem 2rem; color: var(--fg); background: var(--bg); }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.5rem; }
p { margin: 0 0 1rem; }
a { color: var(--link); }
.meta { color: var(--muted); }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.9rem; }
footer nav a { margin-right: 1.25rem; }