* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.footer {
    background-color: #f4f4f4;
    padding: 40px 20px;
    font-family: Arial, sans-serif;
}

.grid-box {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.grid-content h3 {
    margin-bottom: 15px;
    font-size: 1.3em;
    color: #222;
}

.grid-content ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.grid-content ul li a {
    text-decoration: none;
    color: #000;
    transition: color 0.3s;
}

.grid-content ul li a:hover {
    color: brown;
}

/* Social media section */
.social-media li {
    display: flex;
    align-items: center;
}

.social-media img {
    width: 22px;
    height: 22px;
    margin-right: 10px;
    vertical-align: middle;
}

/* Responsive design */
@media (max-width: 768px) {
    .grid-box {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 450px) {
    .grid-box {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-media li {
        justify-content: center;
    }
}