.whatsapp-flutuante{
  position:fixed;
  right:22px;
  bottom:22px;
  z-index:9999;
  width:62px;
  height:62px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  color:#fff;
  background:#25d366;
  box-shadow:0 10px 28px rgba(0,0,0,.25);
  transition:transform .2s ease,box-shadow .2s ease;
}
.whatsapp-flutuante:hover,.whatsapp-flutuante:focus-visible{
  transform:translateY(-3px) scale(1.04);
  box-shadow:0 14px 34px rgba(0,0,0,.3);
  outline:3px solid rgba(37,211,102,.28);
  outline-offset:3px;
}
.whatsapp-flutuante svg{width:34px;height:34px;fill:currentColor}
@media(max-width:640px){.whatsapp-flutuante{right:16px;bottom:16px;width:56px;height:56px}.whatsapp-flutuante svg{width:31px;height:31px}}