/* Fade-in ao rolar */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }
.fade-in-delay-5 { transition-delay: 0.5s; }

/* WhatsApp flutuante */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--color-gold);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(201, 176, 138, 0.4);
  transition: transform var(--transition), box-shadow var(--transition);
  font-size: 1.6rem;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 24px rgba(201, 176, 138, 0.55);
}

@media (max-width: 768px) {
  .whatsapp-float { bottom: 1.25rem; right: 1.25rem; width: 52px; height: 52px; }
}