/* Existing CSS */

/* Footer CSS */
.footer {
  ...
}

/* WhatsApp Floating Button */
.whatsapp-float{
    position: fixed;
    width: 65px;
    height: 65px;
    bottom: 25px;
    right: 25px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
    text-decoration: none;
    box-shadow: 0 8px 25px rgba(0,0,0,.25);
    z-index: 9999;
    transition: all .3s ease;
}

.whatsapp-float:hover{
    transform: translateY(-5px) scale(1.08);
}

.whatsapp-float::before{
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(37,211,102,.4);
    animation: pulse 2s infinite;
}

@keyframes pulse{
    0%{
        transform: scale(1);
        opacity: .8;
    }
    70%{
        transform: scale(1.5);
        opacity: 0;
    }
    100%{
        opacity: 0;
    }
}