/* ============================================================
   motion.css — Shared Motion & Animation System
   Depends on tokens.css being loaded first.
   ============================================================ */

/* ----------------------------------------------------------
   BASE TRANSITION UTILITIES
   ---------------------------------------------------------- */

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

.transition-all {
  transition: all var(--duration-normal) var(--ease-out);
}

.transition-transform {
  transition: transform var(--duration-fast) var(--ease-out);
}

/* ----------------------------------------------------------
   FADE ANIMATIONS
   ---------------------------------------------------------- */

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

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

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn var(--duration-normal) var(--ease-out) both;
}

.animate-fade-in-up {
  animation: fadeInUp var(--duration-normal) var(--ease-out) both;
}

.animate-fade-in-down {
  animation: fadeInDown var(--duration-normal) var(--ease-out) both;
}

/* ----------------------------------------------------------
   SKELETON LOADING
   ---------------------------------------------------------- */

@keyframes shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position:  400px 0; }
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--slate-100) 25%,
    var(--slate-200) 50%,
    var(--slate-100) 75%
  );
  background-size: 800px 100%;
  animation: shimmer 1.4s var(--ease-in-out) infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 1em;
  border-radius: var(--radius-full);
  background: linear-gradient(
    90deg,
    var(--slate-100) 25%,
    var(--slate-200) 50%,
    var(--slate-100) 75%
  );
  background-size: 800px 100%;
  animation: shimmer 1.4s var(--ease-in-out) infinite;
}

.skeleton-circle {
  border-radius: var(--radius-full);
  background: linear-gradient(
    90deg,
    var(--slate-100) 25%,
    var(--slate-200) 50%,
    var(--slate-100) 75%
  );
  background-size: 800px 100%;
  animation: shimmer 1.4s var(--ease-in-out) infinite;
}

.skeleton-card {
  border-radius: var(--radius-lg);
  min-height: 80px;
  background: linear-gradient(
    90deg,
    var(--slate-100) 25%,
    var(--slate-200) 50%,
    var(--slate-100) 75%
  );
  background-size: 800px 100%;
  animation: shimmer 1.4s var(--ease-in-out) infinite;
}

/* ----------------------------------------------------------
   PAGE TRANSITION
   ---------------------------------------------------------- */

.page-enter {
  animation: fadeInUp var(--duration-slow) var(--ease-out) both;
}

/* ----------------------------------------------------------
   PRESS / TAP FEEDBACK
   ---------------------------------------------------------- */

.press-scale:active {
  transform: scale(0.97);
}

/* ----------------------------------------------------------
   TOAST ANIMATIONS
   ---------------------------------------------------------- */

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

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

.toast-enter {
  animation: slideInRight var(--duration-normal) var(--ease-out) both;
}

.toast-exit {
  animation: slideOutRight var(--duration-fast) var(--ease-in) both;
}

/* ----------------------------------------------------------
   TOAST CONTAINER & ITEMS
   ---------------------------------------------------------- */

.toast-container {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

.toast-item {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-lg);
  font-size: var(--font-size-sm);
  min-width: 240px;
  max-width: 400px;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  font-size: 1.1rem;
  line-height: 1;
  margin-left: auto;
}

/* ----------------------------------------------------------
   SPINNER UTILITIES
   ---------------------------------------------------------- */

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

.spinner-sm,
.spinner-md {
  display: inline-block;
  border-style: solid;
  border-color: var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin var(--duration-slow) linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.spinner-md {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

/* ----------------------------------------------------------
   SKELETON DARK MODE OVERRIDES
   ---------------------------------------------------------- */

html.dark-theme .skeleton,
html.dark-theme .skeleton-text,
html.dark-theme .skeleton-circle,
html.dark-theme .skeleton-card {
  background: linear-gradient(
    90deg,
    var(--slate-800) 25%,
    var(--slate-700) 50%,
    var(--slate-800) 75%
  );
  background-size: 800px 100%;
}

/* Ensure Bootstrap animations respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .collapsing {
    transition: none !important;
  }
  .fade {
    transition: none !important;
  }
  .modal.fade .modal-dialog {
    transition: none !important;
  }
}