.whatsapp-ajuda {
  position: fixed;
  right: max(20px, env(safe-area-inset-right));
  bottom: calc(20px + env(safe-area-inset-bottom));
  z-index: 1040;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--rosa, #ff708a);
  color: var(--tinta, #1a161e);
  box-shadow: 0 3px 12px #0003;
  text-decoration: none;
}
.whatsapp-ajuda[hidden] { display: none; }
.whatsapp-ajuda:not([hidden]) { animation: whatsapp-ajuda-entrada .45s ease-out both; }
.whatsapp-ajuda svg { width: 36px; height: 36px; }
.whatsapp-ajuda:hover {
  background: var(--rosa-claro, #ffa8b8);
  color: var(--tinta, #1a161e);
}
.whatsapp-ajuda:focus-visible {
  outline: 3px solid var(--tinta, #1a161e);
  outline-offset: 4px;
}
@keyframes whatsapp-ajuda-entrada {
  from { opacity: 0; transform: translateY(18px) scale(.8); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .whatsapp-ajuda:not([hidden]) { animation: none; }
}