.proteios-whatsapp {
  position: fixed;
  right: max(20px, env(safe-area-inset-right));
  bottom: max(20px, env(safe-area-inset-bottom));
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 8px 18px 8px 10px;
  border: 2px solid rgba(255,255,255,.9);
  border-radius: 999px;
  background: #25d366;
  color: #062e16;
  box-shadow: 0 12px 32px rgba(6,46,22,.28);
  font-size: 14px;
  font-weight: 900;
  line-height: 1.15;
  transition: transform .2s ease, box-shadow .2s ease;
}

.proteios-whatsapp:hover,
.proteios-whatsapp:focus-visible {
  color: #062e16;
  transform: translateY(-3px);
  box-shadow: 0 16px 38px rgba(6,46,22,.35);
}

.proteios-whatsapp svg {
  flex: 0 0 36px;
  width: 36px;
  height: 36px;
  fill: #fff;
}

@media (max-width: 560px) {
  .proteios-whatsapp {
    right: max(14px, env(safe-area-inset-right));
    bottom: max(14px, env(safe-area-inset-bottom));
    width: 58px;
    min-height: 58px;
    padding: 9px;
  }
  .proteios-whatsapp span { display: none; }
  .proteios-whatsapp svg { width: 36px; height: 36px; }
}