:root { color-scheme: light dark; font-family: system-ui, sans-serif; }
body { margin: 0; }
main { max-width: 52rem; margin: 0 auto; padding: 2rem 1rem; }
section { border-top: 1px solid currentColor; margin-top: 2rem; padding-top: 1rem; }
label { display: block; margin: 0.75rem 0; }
select, input, button { font: inherit; margin-left: 0.5rem; }
button { margin: 1rem 0; }
pre { padding: 1rem; overflow: auto; background: color-mix(in srgb, CanvasText 8%, Canvas); }