.whatsapp-float-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
}

.whatsapp-float-button a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: #25d366;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3), 0 0 0 0 rgba(37, 211, 102, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    color: #ffffff;
    animation: whatsapp-float-pulse 2s infinite;
}

.whatsapp-float-button a:hover {
    background-color: #20ba5a;
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.5), 0 0 0 4px rgba(37, 211, 102, 0.1);
}

.whatsapp-float-button a:active {
    transform: scale(0.96);
}

.whatsapp-float-button svg {
    width: 26px;
    height: 26px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

@keyframes whatsapp-float-pulse {
    0% {
        box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3), 0 0 0 0 rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3), 0 0 0 8px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3), 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

@media (max-width: 768px) {
    .whatsapp-float-button {
        bottom: 15px;
        right: 15px;
    }
    
    .whatsapp-float-button a {
        width: 48px;
        height: 48px;
    }
    
    .whatsapp-float-button svg {
        width: 24px;
        height: 24px;
    }
}