.whatsapp-button {
    position: fixed;
    bottom: 20px;
    z-index: 9999;
    transition: all 0.3s ease;
}

.whatsapp-button.right {
    right: 20px;
}

.whatsapp-button.left {
    left: 20px;
}

.whatsapp-button a {
    display: block;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
    text-decoration: none;
    transition: all 0.3s ease;
}

.whatsapp-button a:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(0,0,0,0.2);
}

.whatsapp-button svg {
    width: 36px;
    height: 36px;
}

@keyframes 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);
    }
}

/* Mobile Responsive */
@media screen and (max-width: 768px) {
    .whatsapp-button {
        bottom: 15px;
    }
    
    .whatsapp-button.right {
        right: 15px;
    }
    
    .whatsapp-button.left {
        left: 15px;
    }
    
    .whatsapp-button a {
        width: 50px;
        height: 50px;
    }
    
    .whatsapp-button svg {
        width: 30px;
        height: 30px;
    }
}