:root { color-scheme: light dark; }
body { max-width: 42rem; margin: 3rem auto; padding: 0 1rem; font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
h1 { font-size: 1.5rem; line-height: 1.3; }
.updated { color: GrayText; }
footer { margin-top: 3rem; font-size: 0.875rem; color: GrayText; }
a { color: inherit; }