body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f9f9f9;
  color: #333;
}
header {
  background: #4a90e2;
  color: white;
  text-align: center;
  padding: 2rem;
}
.buttons .btn {
  display: inline-block;
  margin: 1rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  background-color: white;
  color: #4a90e2;
  text-decoration: none;
  font-weight: bold;
}
section {
  padding: 2rem;
  background: white;
  margin-bottom: 1rem;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #eee;
  font-size: 0.9rem;
}