/* WhatsApp Button */
.whatsapp-button {
    position: fixed;
    bottom: 4.5rem;
    right: 0.5rem;
    background: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
    animation: pulse 2s infinite;
}

.whatsapp-button:hover {
    background: #128c7e;
    transform: scale(1.1);
}

.whatsapp-button i {
    font-size: 1.5rem;
}

.whatsapp-tooltip {
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: #1f2937;
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    margin-right: 0.75rem;
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: #1f2937;
}

.whatsapp-button:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}