/* WhatsApp Floating Button Component - BEM */
/* Mobile-first: base styles for mobile */

.whatsapp-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
    background-color: var(--color-whatsapp);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    text-decoration: none;
    border: none;
    cursor: pointer;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
}

.whatsapp-btn svg {
    width: 28px;
    height: 28px;
    fill: var(--white);
}

.whatsapp-btn::after {
    content: "Chat with us!";
    position: absolute;
    right: calc(100% + 0.5rem);
    background-color: var(--gray-dark);
    color: var(--white);
    padding: var(--space-sm) 0.75rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.whatsapp-btn:hover::after {
    opacity: 1;
}

@keyframes whatsapp-pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.whatsapp-btn {
    animation: whatsapp-pulse 2s infinite;
}

.whatsapp-btn:hover {
    animation: none;
}