body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background: #f8f8f8;
}

header {
  background: #003366;
  color: white;
  padding: 2rem;
  text-align: center;
}

section {
  padding: 2rem;
  background: white;
  margin: 1rem auto;
  max-width: 800px;
}

footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  color: #555;
}