.whatsapp-button{display:flex;align-items:center;justify-content:center;position:fixed;bottom:30px;right:30px;width:60px;height:60px;background-color:#25d366;color:#fff;border-radius:50%;border:none;box-shadow:0 4px 10px rgba(0,0,0,.2);cursor:pointer;z-index:1000;transition:all .3s ease;padding:0}.whatsapp-button:hover{transform:scale(1.1);box-shadow:0 6px 15px rgba(0,0,0,.25)}.whatsapp-button .whatsapp-icon{width:30px;height:30px;fill:#fff}@media(max-width:768px){.whatsapp-button{width:50px;height:50px;bottom:20px;right:20px}.whatsapp-button .whatsapp-icon{width:25px;height:25px}}.tooltip{position:absolute;top:-40px;right:0;background-color:#333;color:#fff;padding:5px 10px;border-radius:5px;font-size:14px;white-space:nowrap;opacity:0;transition:opacity .3s ease}.tooltip:after{content:"";position:absolute;top:100%;right:20px;border:5px solid rgba(0,0,0,0);border-top-color:#333}.whatsapp-button:hover .tooltip{opacity:1}