.whatsapp-fab{z-index:9999;background:#25d366;border-radius:50%;justify-content:center;align-items:center;width:58px;height:58px;text-decoration:none;transition:transform .2s,box-shadow .2s;display:flex;position:fixed;bottom:24px;right:24px;box-shadow:0 8px 24px #25d36673}.whatsapp-fab:before,.whatsapp-fab:after{content:"";background:#25d36666;border-radius:50%;animation:2.4s ease-out infinite wa-pulse;position:absolute;inset:0}.whatsapp-fab:after{animation-delay:1.2s}.whatsapp-fab:hover{transform:scale(1.1);box-shadow:0 12px 32px #25d3668c}.whatsapp-fab:hover:before,.whatsapp-fab:hover:after{animation-play-state:paused}.whatsapp-fab svg{z-index:1;flex-shrink:0;width:30px;height:30px;position:relative}@keyframes wa-pulse{0%{opacity:.6;transform:scale(1)}70%{opacity:0;transform:scale(1.8)}to{opacity:0;transform:scale(1.8)}}@media (max-width:768px){.whatsapp-fab{width:52px;height:52px;bottom:80px;right:16px}.whatsapp-fab svg{width:26px;height:26px}}