body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f9f9f9; color: #333; }
header { background: #2681ff; color: #fff; padding: 20px; text-align: center; }
.logo { max-height: 60px; }
main { padding: 20px; text-align: center; }
footer { background: #eee; text-align: center; padding: 10px; font-size: 14px; }