body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
  color: #222;
  background: #fafafa;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  background: #fff;
}

h1 {
  font-size: 1.8em;
  margin-bottom: 0;
}

h2 {
  font-size: 1.2em;
  margin-top: 1.8em;
}

a {
  color: #1565c0;
}

code {
  background: #f0f0f0;
  padding: 1px 4px;
  border-radius: 3px;
}

hr {
  margin: 48px 0;
  border: none;
  border-top: 1px solid #ddd;
}

.lang {
  font-size: 0.95em;
}

.muted {
  color: #666;
  margin-top: 4px;
}