:root {
  color-scheme: light dark;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --background: #ffffff;
  --link: #0066cc;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --background: #000000;
    --link: #2997ff;
  }
}

body {
  margin: 0 auto;
  max-width: 40rem;
  padding: 4rem 1.5rem;
  font: 1.0625rem/1.5 -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--background);
}

h1 {
  font-size: 2.5rem;
  line-height: 1.1;
}

a {
  color: var(--link);
}

footer {
  margin-top: 4rem;
  color: var(--muted);
  font-size: 0.875rem;
}