@keyframes pulse{0%{box-shadow:0 0 0 0 rgb(37 211 102/.7)}70%{box-shadow:0 0 0 15px #fff0}to{box-shadow:0 0 0 0#fff0}}.floating-btn{position:fixed;bottom:7px;right:20px;width:60px;height:60px;border-radius:50%;text-align:center;color:#fff;font-size:28px;display:flex;justify-content:center;align-items:center;background-color:#25d366;box-shadow:0 6px 15px rgb(0 0 0/.3);z-index:9999;transition:transform .2s ease;text-decoration:none;animation:pulse 1.5s infinite}.floating-btn:hover{transform:scale(1.08);background-color:#1ebe5d}@media (max-width:768px){.floating-btn{right:10px;bottom:10px;width:50px;height:50px;font-size:22px}}