.bm-wa{position:fixed;right:18px;bottom:18px;z-index:9990;display:flex;align-items:center;justify-content:center;
  width:56px;height:56px;border-radius:50%;background:#25d366;color:#fff!important;text-decoration:none!important;
  box-shadow:0 4px 14px rgba(0,0,0,.18);transition:transform .15s ease,box-shadow .15s ease}
.bm-wa svg{display:block;width:30px;height:30px}
.bm-wa:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.24)}
.bm-wa:focus-visible{outline:3px solid #fff;outline-offset:2px;box-shadow:0 0 0 6px #25d366}
@media (max-width:640px){.bm-wa{right:12px;bottom:12px;width:52px;height:52px}.bm-wa--raised{bottom:84px}}
@media print{.bm-wa{display:none}}