.site-footer {
    padding-block: clamp(3rem, 6vw, 5rem);
    border-top: 1px solid var(--color-line);
    background: rgba(0, 0, 0, 0.22);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: var(--space-8);
}

.footer-grid p {
    margin-bottom: var(--space-4);
    font-size: 0.9rem;
}

.site-footer .brand__logo {
    height: 76px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.footer-contact a,
.footer-contact__address {
    font-size: 0.85rem;
}

.footer-contact__address {
    color: var(--color-muted);
    line-height: 1.5;
}

.footer-grid strong {
    display: block;
    margin-bottom: var(--space-4);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text);
}

.footer-grid a {
    display: block;
    color: var(--color-muted);
    font-size: 0.9rem;
    text-decoration: none;
    margin-bottom: var(--space-2);
    transition: color var(--transition-fast);
}

.footer-grid a:hover {
    color: var(--color-text);
}

.whatsapp-btn {
    position: fixed;
    right: 1.25rem;
    bottom: 1.25rem;
    z-index: 99;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 999px;
    background: #25d366;
    color: #fff;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.35);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.45);
}

.whatsapp-btn svg {
    display: block;
}

@media (max-width: 680px) {
    .whatsapp-btn {
        width: 46px;
        height: 46px;
        right: 1rem;
        bottom: 1rem;
    }
}

@media (max-width: 820px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
}