/* ============================================
   Fixed WhatsApp Button
   ============================================ */

.whatsapp-float {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-whatsapp);
  width: 56px;
  height: 56px;
  border-radius: 0;
  background-color: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.5);
  color: #fff;
}

.whatsapp-float:active {
  transform: scale(0.95);
}

/* Pulse Animation */
.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 0;
  border: 2px solid #25D366;
  opacity: 0;
  animation: whatsappPulse 2s ease-in-out infinite;
}

@keyframes whatsappPulse {
  0%   { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.3); opacity: 0; }
}

/* Tooltip */
.whatsapp-float__tooltip {
  position: absolute;
  right: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  background-color: var(--color-surface-card);
  color: var(--color-text-primary);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  pointer-events: none;
}

.whatsapp-float__tooltip::after {
  content: '';
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--color-surface-card);
}

.whatsapp-float:hover .whatsapp-float__tooltip {
  opacity: 1;
  visibility: visible;
}