body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}
header {
  background: #00539C;
  color: white;
  text-align: center;
  padding: 2rem;
}
section {
  padding: 1.5rem;
  background: white;
  margin: 1rem auto;
  max-width: 900px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
h1, h2 {
  color: #00539C;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #eee;
}