body { font-family: Arial, sans-serif; margin: 0; padding: 0; background: #f9f9f9; color: #333; }
header { background: #003366; color: white; padding: 10px; display: flex; align-items: center; justify-content: space-between; }
.logo { height: 50px; }
nav a { color: white; margin: 0 10px; text-decoration: none; }
main { padding: 20px; }
footer { background: #003366; color: white; text-align: center; padding: 10px; margin-top: 20px; }
ul { padding-left: 20px; }