body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  max-width: 640px;
  margin: 4rem auto;
  padding: 0 1.5rem;
  line-height: 1.6;
  color: #1a1a1a;
}

h1 {
  font-size: 1.75rem;
}

#visit-count {
  color: #666;
  font-size: 0.9rem;
}