:root {
  --bg: #ffffff;
  --text: #1c1c1e;
  --link: #0a66c2;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111214;
    --text: #e8e8ed;
    --link: #6cb4ff;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 2.5rem 1rem 4rem;
}

h2 {
  font-size: 1.4rem;
  line-height: 1.3;
  margin: 2rem 0 0.75rem;
}

h2:first-child {
  font-size: 1.8rem;
  margin-top: 0;
}

h3 {
  font-size: 1.15rem;
  margin: 1.75rem 0 0.5rem;
}

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