/* ——— Keyframes ——— */
@keyframes anim-fade-up {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes anim-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes anim-fade-out {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes anim-scale-in {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes anim-scale-out {
  from { opacity: 1; transform: scale(1); }
  to { opacity: 0; transform: scale(0.96); }
}

@keyframes anim-slide-right {
  from { opacity: 0; transform: translateX(-12px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes anim-slide-left {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes anim-slide-down {
  from { opacity: 0; transform: translateY(-8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

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

@keyframes anim-toast-out {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(16px); }
}

@keyframes anim-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(3px); }
}

@keyframes anim-bounce-bell {
  0%, 100% { transform: rotate(0deg); }
  20% { transform: rotate(12deg); }
  40% { transform: rotate(-10deg); }
  60% { transform: rotate(6deg); }
  80% { transform: rotate(-4deg); }
}

@keyframes anim-badge-pop {
  from { opacity: 0; transform: scale(0.4); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes anim-stamp {
  from { opacity: 0; transform: rotate(-3deg) scale(0.85); }
  to { opacity: 1; transform: rotate(0deg) scale(1); }
}

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

@keyframes anim-row-out {
  to { opacity: 0; }
}

@keyframes anim-fade-row {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ——— Utilidades ——— */
.anim-fade-up {
  animation: anim-fade-up var(--duration-base) var(--ease-out) both;
}

.anim-stagger-item {
  opacity: 0;
  animation: anim-fade-up var(--duration-base) var(--ease-out) both;
  animation-delay: calc(var(--stagger-i, 0) * var(--stagger-step));
}

.table tbody tr.anim-table-row {
  opacity: 0;
  animation: anim-fade-row var(--duration-base) var(--ease-out) both;
  animation-delay: calc(var(--stagger-i, 0) * 28ms);
}

.anim-shake {
  animation: anim-shake var(--duration-base) var(--ease-out);
}

.anim-stamp {
  animation: anim-stamp var(--duration-base) var(--ease-out) both;
}

/* Login */
.login-panel.is-ready .login-anim,
.login-split.is-ready .login-anim {
  opacity: 0;
  animation: anim-fade-up var(--duration-slow) var(--ease-out) both;
}

.login-panel.is-ready .login-anim--1,
.login-split.is-ready .login-anim--1 { animation-delay: 0ms; }
.login-panel.is-ready .login-anim--2,
.login-split.is-ready .login-anim--2 { animation-delay: 80ms; }
.login-panel.is-ready .login-anim--3,
.login-split.is-ready .login-anim--3 { animation-delay: 160ms; }
.login-panel.is-ready .login-anim--4,
.login-split.is-ready .login-anim--4 { animation-delay: 240ms; }
.login-panel.is-ready .login-anim--5,
.login-split.is-ready .login-anim--5 { animation-delay: 320ms; }

.login-split.is-leaving {
  animation: anim-fade-out var(--duration-base) var(--ease-in) both;
  pointer-events: none;
}

/* Shell */
.app-shell.is-entering .sidebar {
  animation: anim-slide-right var(--duration-slow) var(--ease-out) both;
}

.app-shell.is-entering .main-area {
  animation: anim-fade-in var(--duration-slow) var(--ease-out) both;
  animation-delay: 80ms;
}

/* Routing */
.content.is-leaving {
  animation: anim-fade-out var(--duration-exit) var(--ease-in) both;
  pointer-events: none;
}

.content.is-entering,
.content--fade {
  animation: anim-fade-up var(--duration-base) var(--ease-out) both;
}

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

.topbar__title.is-swapping {
  opacity: 0;
}

/* Sidebar */
.sidebar__link {
  position: relative;
  z-index: 1;
  transition: color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.sidebar__link.is-active {
  background: rgba(162, 59, 59, 0.35);
  color: #fff;
}

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

/* Overlay */
.sidebar-overlay {
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
  pointer-events: none;
}

.app-shell.sidebar-open .sidebar-overlay {
  opacity: 1;
  pointer-events: auto;
}

/* Notificaciones */
.topbar__icon-btn.has-pulse img {
  animation: anim-bounce-bell 0.55s var(--ease-out);
}

.topbar__badge {
  transform-origin: center;
  animation: anim-badge-pop var(--duration-base) var(--ease-out) both;
}

.search-results:not([hidden]) {
  animation: anim-slide-down var(--duration-fast) var(--ease-out) both;
}

.notif-list:not([hidden]) {
  animation: anim-slide-down var(--duration-fast) var(--ease-out) both;
}

/* Modal */
.modal-backdrop {
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.modal-backdrop.is-open {
  opacity: 1;
}

.modal-backdrop.is-closing {
  opacity: 0;
  transition-duration: var(--duration-exit);
  transition-timing-function: var(--ease-in);
}

.modal-backdrop .modal {
  opacity: 0;
  transform: scale(0.96);
  transition:
    opacity var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.modal-backdrop.is-open .modal {
  opacity: 1;
  transform: scale(1);
}

.modal-backdrop.is-closing .modal {
  opacity: 0;
  transform: scale(0.96);
  transition-duration: var(--duration-exit);
  transition-timing-function: var(--ease-in);
}

/* Toast */
.toast-container {
  transition: gap var(--duration-fast) var(--ease-out);
}

.toast {
  animation: anim-toast-in var(--duration-base) var(--ease-out) both;
  transition: opacity var(--duration-exit) var(--ease-in), transform var(--duration-exit) var(--ease-in), margin var(--duration-fast) var(--ease-out);
}

.toast.is-leaving {
  animation: none;
  opacity: 0;
  transform: translateX(16px);
}

/* Tablas */
.table tbody tr.is-removing {
  animation: anim-row-out var(--duration-exit) var(--ease-in) forwards;
}

.table th.is-sorted-flash {
  background: color-mix(in srgb, var(--color-accent) 12%, var(--color-surface));
  transition: background var(--duration-slow) var(--ease-out);
}

/* KPI */
.kpi-grid .kpi-card.anim-stagger-item,
.kpi-grid > .kpi-card {
  opacity: 0;
  animation: anim-fade-up var(--duration-base) var(--ease-out) both;
}

.kpi-grid > .kpi-card:nth-child(1) { animation-delay: 0ms; }
.kpi-grid > .kpi-card:nth-child(2) { animation-delay: 70ms; }
.kpi-grid > .kpi-card:nth-child(3) { animation-delay: 140ms; }
.kpi-grid > .kpi-card:nth-child(4) { animation-delay: 210ms; }
.kpi-grid > .kpi-card:nth-child(5) { animation-delay: 280ms; }

.activity-list .activity-item,
.milestones-list .milestone-item {
  opacity: 0;
  animation: anim-fade-up var(--duration-base) var(--ease-out) both;
}

.activity-list .activity-item:nth-child(1),
.milestones-list .milestone-item:nth-child(1) { animation-delay: 40ms; }
.activity-list .activity-item:nth-child(2),
.milestones-list .milestone-item:nth-child(2) { animation-delay: 80ms; }
.activity-list .activity-item:nth-child(3),
.milestones-list .milestone-item:nth-child(3) { animation-delay: 120ms; }
.activity-list .activity-item:nth-child(4),
.milestones-list .milestone-item:nth-child(4) { animation-delay: 160ms; }
.activity-list .activity-item:nth-child(5),
.milestones-list .milestone-item:nth-child(5) { animation-delay: 200ms; }
.activity-list .activity-item:nth-child(6),
.milestones-list .milestone-item:nth-child(6) { animation-delay: 240ms; }

/* Skeleton */
.skeleton {
  background: linear-gradient(90deg, #e8eaef 25%, #f4f5f7 50%, #e8eaef 75%);
  background-size: 200% 100%;
  animation: anim-shimmer 1.2s ease-in-out infinite;
}

.skeleton-wrap.is-leaving {
  animation: anim-fade-out var(--duration-fast) var(--ease-in) both;
}

.empty-state {
  animation: anim-scale-in var(--duration-base) var(--ease-out) both;
}

.empty-state__icon {
  animation: anim-scale-in var(--duration-slow) var(--ease-out) both;
}

/* Badges / forms */
.badge {
  transition: background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.form-control {
  transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}

.form-group label {
  transition: color var(--duration-fast) var(--ease-out);
}

.form-control:focus {
  box-shadow: 0 0 0 3px rgba(28, 43, 74, 0.1);
}

.form-group.has-error label {
  color: var(--color-danger);
}

.form-error {
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

.form-group.has-error .form-error {
  opacity: 1;
  transform: translateY(0);
  display: block;
}

.form-feedback-icon {
  display: inline-block;
  margin-left: 6px;
  animation: anim-badge-pop var(--duration-fast) var(--ease-out) both;
}

/* Kanban */
.kanban__card {
  transition: box-shadow var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out), opacity var(--duration-fast) var(--ease-out);
}

.kanban__card.dragging {
  opacity: 0.55;
  transform: scale(1.03);
  box-shadow: var(--shadow-md);
}

.kanban__card.is-dropped {
  animation: anim-scale-in var(--duration-fast) var(--ease-out);
}

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

/* Calendario */
.calendar__grid.is-slide-next {
  animation: anim-slide-left var(--duration-base) var(--ease-out) both;
}

.calendar__grid.is-slide-prev {
  animation: anim-slide-right var(--duration-base) var(--ease-out) both;
}

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

.calendar__event:active {
  transform: scale(0.97);
}

/* Documentación */
.doc-filter {
  transition: border-color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast) var(--ease-out);
}

.sello-vigente {
  animation: anim-stamp var(--duration-base) var(--ease-out) both;
}

.programa-card {
  transition: box-shadow var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out);
}

/* ——— Reduced motion ——— */
@media (prefers-reduced-motion: reduce) {
  .login-panel__orb--1,
  .login-panel__orb--2,
  .login-panel__orb--3,
  .login-panel__grid,
  .login-panel__rings,
  .login-panel__star--a,
  .login-panel__star--b,
  .login-panel__star--c,
  .login-panel__star--d,
  .login-panel.is-ready .login-anim,
  .login-split.is-ready .login-anim,
  .app-shell.is-entering .sidebar,
  .app-shell.is-entering .main-area,
  .content.is-entering,
  .content.is-leaving,
  .content--fade,
  .login-split.is-leaving,
  .anim-fade-up,
  .anim-stagger-item,
  .anim-shake,
  .anim-stamp,
  .kpi-grid > .kpi-card,
  .activity-list .activity-item,
  .milestones-list .milestone-item,
  .empty-state,
  .empty-state__icon,
  .toast,
  .toast.is-leaving,
  .search-results:not([hidden]),
  .notif-list:not([hidden]),
  .kanban__card.is-dropped,
  .calendar__grid.is-slide-next,
  .calendar__grid.is-slide-prev,
  .sello-vigente,
  .topbar__icon-btn.has-pulse img,
  .topbar__badge,
  .table tbody tr.anim-table-row,
  .table tbody tr.is-removing {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .modal-backdrop,
  .modal-backdrop .modal,
  .sidebar-overlay,
  .form-control,
  .badge,
  .folder-card,
  .doc-filter,
  .programa-card,
  .kanban__card {
    transition: none !important;
  }

  .skeleton {
    animation: none;
  }

  .modal-backdrop.is-open,
  .modal-backdrop.is-open .modal {
    opacity: 1;
    transform: none;
  }
}