body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #111; color: #fff; }
header { background: #000; padding: 20px; text-align: center; }
nav a { color: #f5c542; text-decoration: none; margin: 0 10px; }
main { padding: 40px; text-align: center; }
footer { background: #000; padding: 20px; text-align: center; font-size: 0.9em; }