:root { color-scheme: dark; }
body { margin: 0; background: #000; color: rgba(255,255,255,.85); font: 17px/1.6 ui-rounded, -apple-system, system-ui, sans-serif; }
main { max-width: 36rem; margin: 0 auto; padding: 4rem 1rem; }
h1 { font-weight: 300; font-size: 2rem; color: #fff; margin: 0 0 .25rem; }
h2 { font-weight: 500; font-size: 1.1rem; color: #fff; margin: 2.5rem 0 .5rem; }
.ring { width: 64px; height: 64px; border: 2px solid rgba(255,255,255,.7); border-radius: 50%; margin-bottom: 2rem; }
a { color: #fff; }
.muted { color: rgba(255,255,255,.5); }