:root { --bg: #fff; --fg: #231f20; --muted: #6b6466; }
@media (prefers-color-scheme: dark) { :root { --bg: #231f20; --fg: #f2eeee; --muted: #a9a2a4; } }
body { background: var(--bg); color: var(--fg); font: 16px/1.6 system-ui, sans-serif; margin: 0; padding: 32px 16px; }
main { max-width: 680px; margin: 0 auto; }
h1 { font-size: 1.6em; margin-bottom: 0; }
.date { color: var(--muted); margin-top: 4px; }
a { color: inherit; }
nav { color: var(--muted); margin-bottom: 24px; }