:root {
  color-scheme: light dark;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  line-height: 1.6;
}

body {
  max-width: 36rem;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

h2 {
  margin-top: 2rem;
  font-size: 1.15rem;
}

footer {
  margin-top: 3rem;
  font-size: 0.9rem;
  opacity: 0.7;
}