/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes zalo-shake {
  0%, 80%, 100% { transform: scale(1); }
  82%, 86% { transform: scale(1.05) rotate(-2deg); }
  84%, 88% { transform: scale(1.05) rotate(2deg); }
}

@keyframes pulse-zalo {
  0% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0.7); }
  70% { box-shadow: 0 0 0 15px rgba(0, 104, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 104, 255, 0); }
}

@keyframes pulse-fb {
  0% { box-shadow: 0 0 0 0 rgba(24, 119, 242, 0.7); }
  70% { box-shadow: 0 0 0 15px rgba(24, 119, 242, 0); }
  100% { box-shadow: 0 0 0 0 rgba(24, 119, 242, 0); }
}

.msg-badge {
  position: absolute;
  top: -8px;
  left: 24px;
  background: #ff3b30;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 100px;
  border: 2px solid #fff;
  box-shadow: 0 4px 12px rgba(255, 59, 48, 0.4);
  animation: badgePop 0.5s cubic-bezier(0.17, 0.89, 0.32, 1.49);
  z-index: 10;
}

@keyframes badgePop {
  from { transform: scale(0); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scrollDot {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }

  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(14px);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}