/**
 * ==============================================================================
 * SISTEMA GLOBAL DE ANIMACIONES & TRANSICIONES CINEMÁTICAS
 * Estandarización de modales suaves y navegación fluida entre páginas
 * ==============================================================================
 */

:root {
  /* Curvas cinemáticas */
  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);     /* Suavizado dinámico tipo resorte Figma/macOS */
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-in-out-smooth: cubic-bezier(0.4, 0, 0.2, 1);

  /* Duraciones */
  --dur-fast: 160ms;
  --dur-normal: 260ms;
  --dur-slow: 360ms;
  --dur-page: 280ms;
}

/* ==========================================================================
   1. TRANSICIONES GLOBALES DE TEMA (DARK / LIGHT)
   ========================================================================== */
html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *::before,
html.theme-transitioning *::after {
  transition: background-color 240ms var(--ease-smooth),
              border-color 240ms var(--ease-smooth),
              color 240ms var(--ease-smooth),
              box-shadow 240ms var(--ease-smooth) !important;
  transition-delay: 0s !important;
}

/* ==========================================================================
   2. SISTEMA DE MODALES ULTRA SUAVES
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--backdrop-modal, rgba(10, 12, 18, 0.75));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 9999;
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

.modal-overlay.hidden,
.modal-overlay[style*="display: none"] {
  display: none !important;
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.modal-card {
  position: relative;
  background: var(--bg-surface-elevated, #ffffff);
  border: 1px solid var(--border-medium, #e2e8f0);
  border-radius: var(--radius-lg, 18px);
  box-shadow: var(--shadow-modal, 0 20px 25px -5px rgba(0, 0, 0, 0.3));
  width: 100%;
  max-width: 560px;
  max-height: calc(100vh - 3rem);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 1 !important;
  transform: scale(1) translateY(0) !important;
}

/* Estado de Salida Suave */
.modal-overlay.is-closing {
  opacity: 0;
  pointer-events: none;
}

.modal-overlay.is-closing .modal-card {
  transform: scale(0.96) translateY(8px);
  opacity: 0;
  transition: transform 200ms cubic-bezier(0.4, 0, 1, 1),
              opacity 180ms ease;
}

/* ==========================================================================
   3. TRANSICIÓN DE NAVEGACIÓN ENTRE PÁGINAS Y VISTAS
   ========================================================================== */
.page-view-container {
  position: relative;
  width: 100%;
  min-height: 100%;
}

.page-view {
  animation: pageViewEnter var(--dur-page) var(--ease-smooth) forwards;
  will-change: transform, opacity;
}

@keyframes pageViewEnter {
  0% {
    opacity: 0;
    transform: translateY(12px) scale(0.995);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Soporte Nativo View Transitions API */
@view-transition {
  navigation: auto;
}

::view-transition-old(root) {
  animation: 180ms cubic-bezier(0.4, 0, 1, 1) both pageFadeOut;
}

::view-transition-new(root) {
  animation: 260ms var(--ease-smooth) 60ms both pageSlideIn;
}

@keyframes pageFadeOut {
  to { opacity: 0; }
}

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

/* ==========================================================================
   4. MICRO-INTERACCIONES EN ELEMENTOS
   ========================================================================== */
.btn-interactive {
  transition: transform var(--dur-fast) var(--ease-smooth),
              box-shadow var(--dur-fast) var(--ease-smooth),
              background var(--dur-fast) var(--ease-smooth),
              opacity var(--dur-fast) var(--ease-smooth);
}

.btn-interactive:hover {
  transform: translateY(-2px);
}

.btn-interactive:active {
  transform: translateY(1px) scale(0.98);
}

.card-interactive {
  transition: transform var(--dur-normal) var(--ease-smooth),
              box-shadow var(--dur-normal) var(--ease-smooth),
              border-color var(--dur-normal) var(--ease-smooth);
}

.card-interactive:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-strong);
}

/* ==========================================================================
   5. ACORDEÓN DESPLEGABLE ELEGANTE (FORMULARIO AÑADIR PRODUCTO)
   ========================================================================== */
.form-expandable-section {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  visibility: hidden;
  transition: grid-template-rows 360ms var(--ease-smooth),
              opacity 280ms var(--ease-smooth),
              visibility 360ms var(--ease-smooth);
  will-change: grid-template-rows, opacity;
}

.form-expandable-section.is-open {
  grid-template-rows: 1fr;
  opacity: 1;
  visibility: visible;
}

.form-expandable-section.is-closing {
  grid-template-rows: 0fr;
  opacity: 0;
  visibility: visible;
  transition: grid-template-rows 320ms cubic-bezier(0.4, 0, 0.2, 1),
              opacity 220ms ease;
}

.form-expandable-content {
  min-height: 0;
  overflow: hidden;
}

.form-expandable-card {
  transform: translateY(-14px) scale(0.985);
  opacity: 0.8;
  transition: transform 360ms var(--ease-smooth),
              opacity 280ms var(--ease-smooth);
  will-change: transform, opacity;
}

.form-expandable-section.is-open .form-expandable-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.form-expandable-section.is-closing .form-expandable-card {
  transform: translateY(-10px) scale(0.985);
  opacity: 0;
  transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1),
              opacity 200ms ease;
}

/* Micro-interacción fluida en el botón "Añadir Producto" */
.btn-toggle-create {
  transition: background-color 280ms var(--ease-smooth),
              color 280ms var(--ease-smooth),
              transform var(--dur-fast) var(--ease-smooth),
              box-shadow 280ms var(--ease-smooth) !important;
}

.btn-toggle-create .btn-icon-svg {
  transition: transform 320ms var(--ease-smooth);
}

.btn-toggle-create.is-active .btn-icon-svg {
  transform: rotate(45deg);
}

body.dark-mode #btnCerrarFormCrearSuperior:hover {
  background-color: var(--bg-surface-hover) !important;
  color: var(--text-primary) !important;
}

body.dark-mode #btnCancelarCrearProducto {
  background-color: var(--bg-surface-elevated) !important;
  border-color: var(--border) !important;
  color: var(--text-muted) !important;
}

body.dark-mode #btnCancelarCrearProducto:hover {
  background-color: var(--bg-surface-hover) !important;
  color: var(--text-primary) !important;
}

/* ==========================================================================
   6. ACCESIBILIDAD (REDUCED MOTION)
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}