.whatsapp-fab{position:fixed;bottom:24px;right:20px;z-index:9999;width:56px;height:56px;background-color:#25D366;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(37,211,102,.45);transition:transform .2s ease,box-shadow .2s ease;text-decoration:none}.whatsapp-fab:hover{transform:scale(1.1);box-shadow:0 6px 20px rgba(37,211,102,.55)}.whatsapp-fab:active{transform:scale(.96)}@keyframes wa-pulse{0%{box-shadow:0 0 0 0 rgba(37,211,102,.5)}70%{box-shadow:0 0 0 14px rgba(37,211,102,0)}to{box-shadow:0 0 0 0 rgba(37,211,102,0)}}.whatsapp-fab{animation:wa-pulse 2s ease-out 1.5s 3}