body { font-family: Arial, sans-serif; margin: 0; padding: 0; }
header { background: #003366; color: white; padding: 20px; text-align: center; }
nav { background: #0055a5; padding: 10px; text-align: center; }
nav a { color: white; text-decoration: none; margin: 0 15px; }
section { padding: 20px; }
#slider img { width: 100%; height: auto; }
footer { background: #003366; color: white; text-align: center; padding: 10px; }
form input, form textarea { width: 100%; padding: 10px; margin: 5px 0; }
form button { background: #0055a5; color: white; padding: 10px 20px; border: none; }