header {
  background-color: #1e3a5f;
  color: white;
  padding: 20px;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 10px;
  text-align: center;
}

nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 15px;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: bold;
}

nav a:hover {
  text-decoration: none;
}