.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    left: 20px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 60px;
    box-shadow: 2px 2px 3px #999;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128C7E;
    transform: scale(1.1);
    text-decoration: none;
}

.whatsapp-float::after {
    content: "+(91)9104630598";
    position: absolute;
    left: 70px;
    white-space: nowrap;
    background: #25d366;
    
    border-radius: 20px;
    font-size: 20px;
    font-weight: bold;
    color: white;
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s ease;
}

.whatsapp-float:hover::after {
    opacity: 1;
    right: 75px;
}

/* Pulse animation */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* For mobile responsiveness */
@media screen and (max-width: 768px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
        font-size: 25px;
    }
    
    .whatsapp-float::after {
        font-size: 12px;
        padding: 5px 10px;
    }
}