.footer {
    background-color: #222;
    color: #fff;
    padding: 40px 0 20px;
    font-family: sans-serif;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    width: 90%;
    margin: auto;
}

.footer-column h3 {
    margin-bottom: 15px;
    font-size: 18px;
}

.footer-column p,
.footer-column a {
    font-size: 14px;
    color: #ccc;
    line-height: 1.8;
    text-decoration: none;
}

.footer-column a:hover {
    color: #fff;
}

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

.footer-column ul li {
    margin-bottom: 8px;
}

.footer-bottom {
    text-align: center;
    margin-top: 30px;
    font-size: 13px;
    color: #aaa;
    border-top: 1px solid #444;
    padding-top: 15px;
}

/* ریسپانسیو */
@media (max-width: 900px) {
    .footer-container {
        grid-template-columns: repeat(1, 1fr);
    }
}

@media (max-width: 500px) {
    .footer-container {
        grid-template-columns: 1fr;
    }
}

img.image-footer {
    width: 170px;
    height: auto;
    margin: 0px 10%;
}