body {
  font-family: system-ui, -apple-system, sans-serif;
  max-width: 600px;
  margin: 4rem auto;
  padding: 0 1rem;
  color: #1a1a1a;
}
h1 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}
p {
  color: #555;
  margin-top: 0;
}
code {
  background: #f0f0f0;
  padding: 0.1em 0.3em;
  border-radius: 3px;
  font-size: 0.95em;
}