body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f9f9f9;
    color: #333;
}
header {
    background: #003366;
    color: white;
    padding: 20px;
    text-align: center;
}
nav a {
    margin: 0 10px;
    color: #ffd700;
    text-decoration: none;
}
main {
    padding: 20px;
}
footer {
    background: #222;
    color: #aaa;
    text-align: center;
    padding: 10px;
}
.logo {
    max-width: 150px;
}
.gallery img {
    width: 200px;
    margin: 10px;
}