:root {
  color-scheme: light dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 2rem 1.25rem 3rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  color: #1c1c1e;
  background: #fff;
}

main {
  max-width: 720px;
  margin: 0 auto;
}

h1 {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
}

h2 {
  font-size: 1.25rem;
  margin-top: 2rem;
}

.updated {
  color: #6e6e73;
  font-size: 0.9rem;
  margin-top: 0;
  margin-bottom: 2rem;
}

p, li {
  font-size: 1rem;
}

ul, ol {
  padding-left: 1.25rem;
}

a {
  color: #0066cc;
  text-decoration: underline;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e0e0e0;
  color: #6e6e73;
  font-size: 0.85rem;
}

@media (prefers-color-scheme: dark) {
  body {
    background: #000;
    color: #f2f2f7;
  }

  footer {
    border-top-color: #2c2c2e;
  }

  .updated, footer {
    color: #8e8e93;
  }

  a {
    color: #4da3ff;
  }
}