body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #fff; color: #0a1f44; }
header { background: #0a1f44; color: #fff; padding: 1rem; text-align: center; }
nav a { color: #fff; margin: 0 10px; text-decoration: none; }
main { padding: 2rem; }
footer { background: #0a1f44; color: #fff; text-align: center; padding: 1rem; }