.icon-btn:hover .icon {
  transform: scale(1.15);
  transition: transform 150ms ease-out;
}

.icon-btn:active .icon {
  transform: scale(0.9);
  transition: transform 50ms ease-in;
}

.badge {
  animation: badgeBounce 400ms cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

@keyframes badgeBounce {
  0% { transform: scale(0); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.status-indicator {
  animation: pulse 2000ms ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

.bell-icon:hover {
  animation: ring 500ms ease-in-out;
}

@keyframes ring {
  0%, 100% { transform: rotate(0); }
  20%, 60% { transform: rotate(15deg); }
  40%, 80% { transform: rotate(-15deg); }
}