body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f9fafb;
  color: #333;
}

header {
  background: #0d6efd;
  color: white;
  padding: 1rem;
  text-align: center;
}

nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
}

nav a:hover {
  text-decoration: underline;
}

section {
  padding: 2rem;
  text-align: center;
}

footer {
  background: #eee;
  padding: 1rem;
  text-align: center;
  font-size: 0.9rem;
}