body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f8f9fa;
  color: #333;
}

header {
  background: #004080;
  color: white;
  padding: 20px;
  text-align: center;
}

header nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
  font-weight: bold;
}

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

section {
  padding: 40px;
  max-width: 900px;
  margin: auto;
}

h2 {
  color: #004080;
}

.gallery-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-top: 20px;
}

.gallery-container img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

footer {
  background: #004080;
  color: white;
  text-align: center;
  padding: 15px 0;
  margin-top: 20px;
}