.whatsapp-fab{position:fixed;right:30px;bottom:120px;width:60px;height:60px;border-radius:50%;background:#25D366;color:white;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 20px rgba(37,211,102,.4),0 10px 40px rgba(0,0,0,.3);z-index:9999;transition:all .3s ease;font-size:2rem}.whatsapp-fab:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 6px 25px rgba(37,211,102,.5),0 15px 50px rgba(0,0,0,.4);background:#20BA5A}.whatsapp-fab:active{transform:translateY(-2px) scale(1.02)}@media (max-width:768px){.whatsapp-fab{right:20px;bottom:100px;width:56px;height:56px;font-size:1.75rem}}@media (max-width:480px){.whatsapp-fab{right:16px;bottom:90px;width:54px;height:54px;font-size:1.65rem}}@media (hover:none) and (pointer:coarse){.whatsapp-fab{min-width:48px;min-height:48px}}