html { color-scheme: light dark; font-family: system-ui, -apple-system, sans-serif; line-height: 1.6; }
body { margin: 0; background: Canvas; color: CanvasText; }
main { max-width: 42rem; margin: 3rem auto; padding: 0 1.5rem; }
h1 { line-height: 1.2; }
a { color: LinkText; text-underline-offset: .15em; }
nav { margin-top: 2rem; }