:root { color-scheme: light dark; font-family: system-ui, sans-serif; }
body { margin: 0; padding: 24px; }
main { max-width: 38rem; margin: 12vh auto; }
h1 { font-size: 1.6rem; }
p { line-height: 1.6; }
a { display: inline-block; padding: 12px 0; }
[hidden] { display: none; }