.footer {
    background: #121212; color: #fff; padding: 60px 0 20px;
    margin-top: 100px; border-top: 5px solid #f5a623; font-family: sans-serif;
}
.footer-container {
    max-width: 1100px; margin: 0 auto; padding: 0 20px;
    display: flex; justify-content: space-between; align-items: flex-start;
}
.footer-info, .footer-maps { width: 46%; }
.footer h3 {
    color: #f5a623; font-size: 16px; text-transform: uppercase;
    margin-bottom: 25px; border-bottom: 2px solid #f5a623;
    display: inline-block; padding-bottom: 5px;
}
.footer p { color: #ccc; font-size: 15px; line-height: 1.8; margin-bottom: 10px; }

/* Social */
.social-links a {
    width: 35px; height: 35px; border: 1px solid #444;
    display: inline-flex; align-items: center; justify-content: center;
    margin-right: 10px; color: #f5a623; text-decoration: none;
    border-radius: 50%; transition: .4s;
}
.social-links a:hover { background: #f5a623; color: #000; }

/* Maps vuông */
.map-square {
    width: 100%; position: relative; padding-top: 100%;
    border-radius: 20px; overflow: hidden; border: 1px solid #333;
}
.map-square iframe {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;
}

.footer-bottom {
    text-align: center; padding-top: 30px; margin-top: 40px;
    border-top: 1px solid #222; font-size: 12px; color: #666;
}