.whatsapp-float {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 18;
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .8rem 1rem;
  background: #25d366;
  color: #071a0e;
  text-decoration: none;
  border-radius: 999px;
  box-shadow: 0 12px 35px #0009;
  font: 800 .78rem 'Syne';
  letter-spacing: .04em;
}
.whatsapp-float svg { width: 31px; height: 31px; color: white; flex: 0 0 auto; }
.whatsapp-float:hover { filter: brightness(1.08); transform: translateY(-2px); }
.whatsapp-submit { background: #25d366; color: #071a0e; box-shadow: 0 10px 40px #25d3662e; width: 100%; }
@media (max-width: 560px) {
  .whatsapp-float { right: .8rem; bottom: calc(.8rem + env(safe-area-inset-bottom)); padding: .72rem; }
  .whatsapp-float b { display: none; }
}