/* Fern WhatsApp FAB */
.fern-wa-fab {
  position: fixed;
  right: 16px;
  bottom: calc(88px + env(safe-area-inset-bottom, 0px));
  z-index: 95;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #25d366;
  color: #fff;
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.fern-wa-fab:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 16px 32px rgba(37, 211, 102, 0.42);
}
@media (min-width: 768px) {
  .fern-wa-fab {
    right: 22px;
    bottom: 28px;
  }
}