/* ==========================================================
   Botão flutuante do WhatsApp
   ========================================================== */
.whatsapp-float {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 90;
  display: grid;
  place-items: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.35);
  transition: transform var(--transition);
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
}

.whatsapp-float:hover {
  transform: scale(1.08);
}

/* Onda pulsando atrás do botão */
.whatsapp-float::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25d366;
  z-index: -1;
  animation: whatsapp-pulse 2.2s ease-out infinite;
}

/* Balão "Fale conosco" que aparece no hover (desktop) */
.whatsapp-float__label {
  position: absolute;
  right: calc(100% + 12px);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-black);
  font-size: var(--fs-sm);
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transform: translateX(8px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}

.whatsapp-float:hover .whatsapp-float__label {
  opacity: 1;
  transform: none;
}

@keyframes whatsapp-pulse {
  0%   { transform: scale(1);   opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}