/* Footer Styles */
.main-footer {
    background: #222;
    color: #fff;
    padding: 40px 0 20px;
    font-size: 0.9em;
}

.main-footer .container {
    text-align: left;
}

.footer-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-col h4 {
    font-size: 1.2em;
    margin-bottom: 15px;
    color: #eee;
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: #007bff;
}

.social-media a {
    display: inline-block;
    margin-right: 15px;
}

.social-media img {
    width: 28px;
    height: 28px;
    filter: invert(1); /* Untuk ikon putih di background gelap */
    transition: filter 0.3s ease;
}

.social-media img:hover {
    filter: invert(0.5); /* Contoh: sedikit keabuan saat hover */
}

.copyright {
    text-align: center;
    border-top: 1px solid #444;
    padding-top: 20px;
    margin-top: 20px;
    color: #aaa;
}