/* ===== ANIMATION SYSTEM ===== */

/* Page transitions */
.page-enter {
  opacity: 0;
  transform: translateY(12px);
}
.page-enter-active {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.page-exit {
  opacity: 1;
}
.page-exit-active {
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Stagger animations */
.stagger-enter > * {
  opacity: 0;
  transform: translateY(16px);
}
.stagger-enter-active > * {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.stagger-enter-active > *:nth-child(1) { transition-delay: 0.03s; }
.stagger-enter-active > *:nth-child(2) { transition-delay: 0.06s; }
.stagger-enter-active > *:nth-child(3) { transition-delay: 0.09s; }
.stagger-enter-active > *:nth-child(4) { transition-delay: 0.12s; }
.stagger-enter-active > *:nth-child(5) { transition-delay: 0.15s; }
.stagger-enter-active > *:nth-child(6) { transition-delay: 0.18s; }
.stagger-enter-active > *:nth-child(7) { transition-delay: 0.21s; }
.stagger-enter-active > *:nth-child(8) { transition-delay: 0.24s; }
.stagger-enter-active > *:nth-child(9) { transition-delay: 0.27s; }
.stagger-enter-active > *:nth-child(10) { transition-delay: 0.30s; }

/* Scale-in animation */
.scale-in {
  animation: scaleIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* Slide-up animation */
.slide-up {
  animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Fade-in animation */
.fade-in {
  animation: fadeIn 0.3s ease-out forwards;
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Card hover lift */
.card-hover {
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}
.dark .card-hover:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

/* Button press */
.btn-press {
  transition: transform 0.1s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn-press:active {
  transform: scale(0.96);
}

/* Skeleton loading shimmer */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}
.dark .skeleton {
  background: linear-gradient(90deg, #1e293b 25%, #334155 50%, #1e293b 75%);
  background-size: 200% 100%;
}

/* Number count-up animation */
@keyframes countUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.count-up {
  animation: countUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Pulse subtle (for active timer etc) */
@keyframes pulse-subtle {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}
.pulse-subtle {
  animation: pulse-subtle 2s ease-in-out infinite;
}

/* Bounce in X axis (for next action indicators) */
@keyframes bounce-x {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(4px); }
}
.animate-bounce-x {
  animation: bounce-x 1s ease-in-out infinite;
}

/* Spin slow (for loading) */
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.animate-spin-slow {
  animation: spin-slow 3s linear infinite;
}

/* Background shimmer for gradient cards */
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.animate-gradient {
  background-size: 200% 200%;
  animation: gradient-shift 4s ease infinite;
}