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

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

@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-24px); }
  to { opacity: 1; transform: translateX(0); }
}

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

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

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

@keyframes slideToastIn {
  from { opacity: 0; transform: translateX(100%) scale(0.9); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes slideToastOut {
  from { opacity: 1; transform: translateX(0) scale(1); }
  to { opacity: 0; transform: translateX(100%) scale(0.9); }
}

@keyframes ripple {
  0% { transform: scale(0); opacity: 0.5; }
  100% { transform: scale(4); opacity: 0; }
}

@keyframes dragPulse {
  0%, 100% { border-color: var(--color-accent-primary); opacity: 0.7; }
  50% { border-color: var(--color-accent-secondary); opacity: 1; }
}

@keyframes progressFill {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes cardEntrance {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.anim-fade-in {
  animation: fadeIn var(--transition-base) ease-out forwards;
}

.anim-slide-up {
  animation: slideUp var(--transition-slow) ease-out forwards;
}

.anim-slide-down {
  animation: slideDown var(--transition-slow) ease-out forwards;
}

.anim-scale-in {
  animation: scaleIn var(--transition-base) ease-out forwards;
}

.anim-bounce-in {
  animation: bounceIn 500ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.anim-float {
  animation: float 3s ease-in-out infinite;
}

.anim-stagger > * {
  opacity: 0;
  animation: cardEntrance 400ms ease-out forwards;
}

.anim-stagger > *:nth-child(1) { animation-delay: 50ms; }
.anim-stagger > *:nth-child(2) { animation-delay: 100ms; }
.anim-stagger > *:nth-child(3) { animation-delay: 150ms; }
.anim-stagger > *:nth-child(4) { animation-delay: 200ms; }
.anim-stagger > *:nth-child(5) { animation-delay: 250ms; }
.anim-stagger > *:nth-child(6) { animation-delay: 300ms; }
.anim-stagger > *:nth-child(7) { animation-delay: 350ms; }
.anim-stagger > *:nth-child(8) { animation-delay: 400ms; }
.anim-stagger > *:nth-child(9) { animation-delay: 450ms; }
.anim-stagger > *:nth-child(10) { animation-delay: 500ms; }
.anim-stagger > *:nth-child(11) { animation-delay: 550ms; }
.anim-stagger > *:nth-child(12) { animation-delay: 600ms; }

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-tertiary) 25%,
    var(--color-border) 50%,
    var(--color-bg-tertiary) 75%
  );
  background-size: 400% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.gradient-border {
  position: relative;
}

.gradient-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--gradient-accent);
  background-size: 200% 200%;
  border-radius: inherit;
  z-index: -1;
  animation: gradientShift 4s ease infinite;
}

.ripple-container {
  position: relative;
  overflow: hidden;
}

.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  pointer-events: none;
  animation: ripple 600ms ease-out forwards;
}

.page-enter {
  animation: slideUp 350ms ease-out forwards;
}

.page-exit {
  animation: fadeOut 200ms ease-in forwards;
}

.modal-overlay-enter {
  animation: overlayIn 250ms ease-out forwards;
}

.modal-content-enter {
  animation: modalIn 350ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.modal-overlay-exit {
  animation: fadeOut 200ms ease-in forwards;
}

.modal-content-exit {
  animation: scaleOut 200ms ease-in forwards;
}

.toast-enter {
  animation: slideToastIn 400ms cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.toast-exit {
  animation: slideToastOut 300ms ease-in forwards;
}

.drag-active {
  animation: dragPulse 1.5s ease-in-out infinite;
}

.progress-fill {
  animation: progressFill 1s ease-out forwards;
}

@keyframes slideUpSheet {
  from { transform: translateY(100%); opacity: 0.5; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideDownSheet {
  from { transform: translateY(0); opacity: 1; }
  to { transform: translateY(100%); opacity: 0; }
}

@keyframes navPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.18); }
  100% { transform: scale(1.1); }
}

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