/* Footer */
footer {
    background-color: #1a1a1a;
    color: #dfdfdf;
    padding: 80px 0 20px;
    font-size: 14px;
    border-top: 5px solid var(--primary-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-col h4 {
    color: var(--white);
    font-size: 16px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-col p {
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-col .logo {
    margin-bottom: 20px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.social-icon {
    width: 36px;
    height: 36px;
    background-color: #2b2b2b;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 16px;
    transition: var(--transition-fast);
}

.social-icon:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

/* Fixed quick-contact links rendered from the shared footer. */
.floating-contact-links {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.floating-contact-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border: 2px solid var(--white);
    border-radius: 50%;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
    color: var(--white);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.floating-contact-link:hover {
    color: var(--white);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.28);
}

.floating-contact-zalo {
    background-color: #0068ff;
    font-size: 11px;
    font-weight: 800;
}

.floating-contact-facebook {
    background-color: #1877f2;
    font-size: 24px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    line-height: 1.5;
}

.footer-contact i {
    color: var(--primary-color);
    font-size: 16px;
    margin-top: 3px;
}

.footer-brands {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 112px;
    height: 34px;
    background-color: var(--white);
    padding: 5px 9px;
    border-radius: 6px;
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

.brand-badge img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.footer-bottom {
    border-top: 1px solid #2b2b2b;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: #888;
}