/* Contêiner pai — precisa ter position: relative */
.pagina-wrapper {
  position: relative;
  min-height: 10vh; /* garante altura suficiente */
}

/* Botão posicionado no canto inferior direito do contêiner */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,.25);
  transition: transform .2s ease, box-shadow .2s ease;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 18px rgba(0,0,0,.3);
}