:root { color-scheme: light dark; --fg: #1c1c1e; --muted: #6e6e73; --bg: #ffffff; --link: #0a66d8; --todo: #b25000; }
@media (prefers-color-scheme: dark) { :root { --fg: #f2f2f7; --muted: #a1a1a6; --bg: #000000; --link: #4da3ff; --todo: #ff9f43; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
main { max-width: 42rem; margin: 0 auto; padding: 2rem 1rem 4rem; }
h1 { font-size: 2rem; margin: 0.5rem 0; }
h2 { font-size: 1.2rem; margin-top: 2rem; }
a { color: var(--link); }
.meta { color: var(--muted); }
.todo { color: var(--todo); font-weight: 600; }