body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: darkred;
    color: white;
    text-align: center;
    padding: 20px 0;
    text-decoration: none;
}

#gallery {
    text-align: center;
}

.active-page {
    text-decoration: none;
    color: #f4f4f4;
    list-style: none;
}

footer {
    background-color: darkred;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}

footer p {
    margin: 0;
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}