body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 2rem;
  background: #f9f9f9;
  color: #333;
}

header {
  border-bottom: 1px solid #ccc;
  margin-bottom: 2rem;
}

footer {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: #666;
}