/* ==================== WHATSAPP FLOATING BUTTON ==================== */
.whatsapp-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25D366 0%, #20BA5A 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    z-index: 999;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    animation: slideInUp 0.6s ease;
}

.whatsapp-button:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.6);
}

.whatsapp-button:active {
    transform: scale(0.95);
}

/* Pulse Animation */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    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-button::before {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(37, 211, 102, 0.1);
    animation: pulse 2s infinite;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .whatsapp-button {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .whatsapp-button {
        bottom: 15px;
        right: 15px;
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .whatsapp-button {
        animation: none;
    }
    
    .whatsapp-button::before {
        animation: none;
        display: none;
    }
}

/* Print */
@media print {
    .whatsapp-button {
        display: none;
    }
}