body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem;
  line-height: 1.6;
  color: #333;
}
h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
p {
  font-size: 1.125rem;
  margin-bottom: 1rem;
}
a {
  color: #007aff;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}
em {
  font-style: italic;
}
small {
  color: #666;
}