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


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


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


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


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


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


@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}


@keyframes expandHeight {
  from {
    max-height: 0;
    opacity: 0;
  }
  to {
    max-height: 1000px;
    opacity: 1;
  }
}


@keyframes collapseHeight {
  from {
    max-height: 1000px;
    opacity: 1;
  }
  to {
    max-height: 0;
    opacity: 0;
  }
}


@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}


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


@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}


@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}


@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 5px rgba(var(--color-primary-rgb), 0.3);
  }
  50% {
    box-shadow: 0 0 20px rgba(var(--color-primary-rgb), 0.6);
  }
}


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


@keyframes progress {
  0% {
    width: 0%;
  }
  100% {
    width: 100%;
  }
}


@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}



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

.animate-fade-in-up {
  animation: fadeInUp var(--transition-slow) var(--ease-out) forwards;
}

.animate-fade-in-down {
  animation: fadeInDown var(--transition-slow) var(--ease-out) forwards;
}

.animate-fade-in-left {
  animation: fadeInLeft var(--transition-slow) var(--ease-out) forwards;
}

.animate-fade-in-right {
  animation: fadeInRight var(--transition-slow) var(--ease-out) forwards;
}

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

.animate-slide-in-right {
  animation: slideInRight var(--transition-slow) var(--ease-out) forwards;
}

.animate-pulse {
  animation: pulse 2s var(--ease-in-out) infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

.animate-bounce {
  animation: bounce 1s var(--ease-in-out) infinite;
}

.animate-float {
  animation: float 3s var(--ease-in-out) infinite;
}

.animate-glow {
  animation: glowPulse 2s var(--ease-in-out) infinite;
}


.stagger-children > * {
  opacity: 0;
  animation: fadeInUp var(--transition-slow) var(--ease-out) forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 50ms; }
.stagger-children > *:nth-child(3) { animation-delay: 100ms; }
.stagger-children > *:nth-child(4) { animation-delay: 150ms; }
.stagger-children > *:nth-child(5) { animation-delay: 200ms; }
.stagger-children > *:nth-child(6) { animation-delay: 250ms; }
.stagger-children > *:nth-child(7) { animation-delay: 300ms; }
.stagger-children > *:nth-child(8) { animation-delay: 350ms; }
.stagger-children > *:nth-child(9) { animation-delay: 400ms; }
.stagger-children > *:nth-child(10) { animation-delay: 450ms; }



.transition-all {
  transition: all var(--transition-base) var(--ease-in-out);
}

.transition-transform {
  transition: transform var(--transition-base) var(--ease-in-out);
}

.transition-opacity {
  transition: opacity var(--transition-base) var(--ease-in-out);
}

.transition-colors {
  transition: color var(--transition-fast) var(--ease-in-out),
              background-color var(--transition-fast) var(--ease-in-out),
              border-color var(--transition-fast) var(--ease-in-out);
}

.transition-shadow {
  transition: box-shadow var(--transition-base) var(--ease-in-out);
}



.hover-lift {
  transition: transform var(--transition-base) var(--ease-out),
              box-shadow var(--transition-base) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.hover-scale {
  transition: transform var(--transition-base) var(--ease-out);
}

.hover-scale:hover {
  transform: scale(1.02);
}

.hover-glow {
  transition: box-shadow var(--transition-base) var(--ease-out);
}

.hover-glow:hover {
  box-shadow: var(--glow-primary);
}



.expandable {
  overflow: hidden;
  transition: max-height var(--transition-slow) var(--ease-in-out),
              opacity var(--transition-base) var(--ease-in-out);
}

.expandable.collapsed {
  max-height: 0;
  opacity: 0;
}

.expandable.expanded {
  max-height: 2000px;
  opacity: 1;
}


.expand-grid {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-slow) var(--ease-in-out);
}

.expand-grid.expanded {
  grid-template-rows: 1fr;
}

.expand-grid > * {
  overflow: hidden;
}



.loading-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-dots {
  display: flex;
  gap: var(--space-1);
}

.loading-dots span {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }
.loading-dots span:nth-child(3) { animation-delay: 0s; }


.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 25%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 75%
  );
  background-size: 200% 100%;
  animation: skeleton 1.5s ease-in-out infinite;
}

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



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