:root { color-scheme: light dark; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; }
main { max-width: 32rem; padding: 2rem 1.5rem; text-align: center; line-height: 1.5; }
a { color: inherit; }
ul { list-style: none; padding: 0; }