@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes typingDots {
  0%, 20% { opacity: 0.2; }
  50% { opacity: 1; }
  80%, 100% { opacity: 0.2; }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes scoreReveal {
  from { stroke-dashoffset: 283; }
}

@keyframes shimmer {
  from { background-position: -200% 0; }
  to { background-position: 200% 0; }
}

@keyframes bounceIn {
  0% { opacity: 0; transform: scale(0.3); }
  50% { opacity: 1; transform: scale(1.05); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

/* Utility Classes */
.animate-fade-in { animation: fadeIn var(--transition-normal) both; }
.animate-slide-up { animation: slideUp var(--transition-slow) both; }
.animate-slide-down { animation: slideDown var(--transition-normal) both; }
.animate-slide-left { animation: slideInLeft var(--transition-normal) both; }
.animate-slide-right { animation: slideInRight var(--transition-normal) both; }
.animate-scale-in { animation: scaleIn var(--transition-normal) both; }
.animate-bounce-in { animation: bounceIn 500ms both; }

/* Stagger Delays */
.animate-delay-1 { animation-delay: 50ms; }
.animate-delay-2 { animation-delay: 100ms; }
.animate-delay-3 { animation-delay: 150ms; }
.animate-delay-4 { animation-delay: 200ms; }
.animate-delay-5 { animation-delay: 250ms; }
.animate-delay-6 { animation-delay: 300ms; }
.animate-delay-7 { animation-delay: 350ms; }
.animate-delay-8 { animation-delay: 400ms; }

/* Typing Indicator */
.typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-3) var(--space-4);
}

.typing-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-text-muted);
  animation: typingDots 1.4s infinite;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}