/* ==========================================
   SIDEBAR NAVIGATION - ESTILOS PRINCIPALES CORREGIDOS CON ACORDEÓN
   ========================================== */

/* Variables para modo claro */
[data-bs-theme="claro"] {
  --sidebar-width: 320px;
  --sidebar-bg: var(--bg-primary);
  --sidebar-border: var(--border-soft);
  --sidebar-shadow: var(--shadow-soft);
  --sidebar-indicator-bg: var(--accent-blue);
  --sidebar-overlay-bg: rgba(15, 23, 42, 0.5);
  --sidebar-header-bg: var(--bg-secondary);
  --sidebar-text: var(--text-primary);
  --sidebar-text-muted: var(--text-muted);
  --sidebar-accent: var(--accent-blue);
  --sidebar-accent-hover: var(--accent-blue-hover);
  --sidebar-transition: 0.3s ease;
  --sidebar-z-indicator: 999;
  --sidebar-z-overlay: 1050;
  --sidebar-z-nav: 1100;
}

/* Variables para modo oscuro */
[data-bs-theme="oscuro"] {
  --sidebar-width: 320px;
  --sidebar-bg: var(--bg-primary);
  --sidebar-border: var(--surface-border);
  --sidebar-shadow: var(--shadow-soft);
  --sidebar-indicator-bg: var(--accent-blue);
  --sidebar-overlay-bg: rgba(0, 0, 0, 0.7);
  --sidebar-header-bg: var(--bg-secondary);
  --sidebar-text: var(--text-primary);
  --sidebar-text-muted: var(--text-muted);
  --sidebar-accent: var(--accent-blue);
  --sidebar-accent-hover: var(--accent-blue-hover);
  --sidebar-transition: 0.3s ease;
  --sidebar-z-indicator: 999;
  --sidebar-z-overlay: 1050;
  --sidebar-z-nav: 1100;
}

/* ==========================================
   PLACEHOLDER DEL SIDEBAR - NO OCUPA ESPACIO
   ========================================== */

#sidebar-navigation-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  pointer-events: none;
  z-index: var(--sidebar-z-nav);
}

/* Indicador visual en el borde izquierdo - POSICIÓN ABSOLUTA */
.sidebar-indicator {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 80px;
  background: linear-gradient(to bottom, var(--sidebar-indicator-bg), #0056b3);
  border-radius: 0 8px 8px 0;
  cursor: pointer;
  z-index: var(--sidebar-z-indicator);
  transition: all var(--sidebar-transition);
  opacity: 0.7;
  box-shadow: 2px 0 8px rgba(0,123,255,0.3);
  pointer-events: auto;
}

.sidebar-indicator:hover {
  width: 8px;
  opacity: 1;
  box-shadow: 3px 0 12px rgba(0,123,255,0.4);
}

.sidebar-indicator:focus {
  outline: 2px solid var(--sidebar-accent);
  outline-offset: 2px;
}

/* Overlay de fondo - POSICIÓN FIJA SIN OCUPAR ESPACIO */
.sidebar-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--sidebar-overlay-bg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--sidebar-transition);
  z-index: var(--sidebar-z-overlay);
  backdrop-filter: blur(2px);
  pointer-events: none;
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Barra lateral principal - COMPLETAMENTE FUERA DE PANTALLA CUANDO CERRADA */
.sidebar-navigation {
  position: fixed;
  top: 0;
  left: -100%;
  width: var(--sidebar-width);
  height: 100vh;
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  box-shadow: var(--sidebar-shadow);
  transition: left var(--sidebar-transition);
  z-index: var(--sidebar-z-nav);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  pointer-events: none;
}

.sidebar-navigation.active {
  left: 0;
  pointer-events: auto;
}

/* Header de la barra lateral */
.sidebar-header {
  background-color: var(--sidebar-header-bg);
  border-bottom: 1px solid var(--sidebar-border);
  padding: 1.5rem 1rem;
  position: relative;
  flex-shrink: 0;
}

.sidebar-logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--sidebar-accent);
  margin-bottom: 0.25rem;
}

.sidebar-subtitle {
  font-size: 0.875rem;
  color: var(--sidebar-text-muted);
  margin-bottom: 0;
}

/* Botón cerrar */
.sidebar-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--sidebar-transition);
  color: var(--sidebar-text-muted);
}

.sidebar-close:hover,
.sidebar-close:focus {
  background-color: rgba(0,123,255,0.1);
  color: var(--sidebar-accent);
  outline: none;
}

/* Contenido scrollable */
.sidebar-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--sidebar-border) transparent;
}

.sidebar-content::-webkit-scrollbar {
  width: 6px;
}

.sidebar-content::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
  background: var(--sidebar-border);
  border-radius: 3px;
}

.sidebar-content::-webkit-scrollbar-thumb:hover {
  background: var(--sidebar-text-muted);
}

/* Sección del buscador */
.sidebar-search-section {
  padding: 0 1rem 1.5rem 1rem;
  border-bottom: 1px solid var(--sidebar-border);
  margin-bottom: 1rem;
}

.sidebar-search-container {
  position: relative;
  display: flex;
  align-items: center;
  background-color: #f8f9fa;
  border: 1px solid var(--sidebar-border);
  border-radius: 6px;
  overflow: hidden;
  transition: var(--sidebar-transition);
}

.sidebar-search-container:focus-within {
  border-color: var(--sidebar-accent);
  box-shadow: 0 0 0 2px rgba(0,123,255,0.25);
}

.sidebar-search-input {
  flex: 1;
  padding: 0.75rem;
  border: none;
  background: transparent;
  font-size: 0.9rem;
  color: var(--sidebar-text);
}

.sidebar-search-input:focus {
  outline: none;
}

.sidebar-search-input::placeholder {
  color: var(--sidebar-text-muted);
}

.sidebar-search-btn {
  width: 40px;
  height: 40px;
  border: none;
  background: var(--sidebar-accent);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--sidebar-transition);
}

.sidebar-search-btn:hover,
.sidebar-search-btn:focus {
  background: var(--sidebar-accent-hover);
  outline: none;
}

/* Resultados de búsqueda del sidebar */
.sidebar-search-results {
  list-style: none;
  margin: 0;
  padding: 0;
  margin-top: 0.5rem;
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--sidebar-border);
  border-radius: 6px;
  background-color: var(--sidebar-bg);
  display: none;
}

.sidebar-search-results.active,
.sidebar-search-results.show {
  display: block;
}

.sidebar-search-results li {
  margin: 0;
}

.sidebar-search-results a {
  display: block;
  padding: 0.5rem 0.75rem;
  text-decoration: none;
  color: var(--sidebar-text);
  font-size: 0.875rem;
  transition: var(--sidebar-transition);
  border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-search-results a:last-child {
  border-bottom: none;
}

.sidebar-search-results a:hover,
.sidebar-search-results a:focus {
  background-color: rgba(0,123,255,0.1);
  color: var(--sidebar-accent);
  outline: none;
}

/* Navegación principal del sidebar */
.sidebar-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Items de navegación principales */
.sidebar-nav-item {
  margin: 0;
  border-bottom: 1px solid var(--sidebar-border);
}

/* Botones principales de navegación y submenu toggles */
.sidebar-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  text-decoration: none;
  color: var(--sidebar-text);
  font-weight: 500;
  transition: var(--sidebar-transition);
  border-left: 3px solid transparent;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}

.sidebar-nav-link:hover,
.sidebar-nav-link:focus {
  background-color: rgba(0,123,255,0.1);
  color: var(--sidebar-accent);
  border-left-color: var(--sidebar-accent);
  outline: none;
}

/* Enlaces normales (no toggles) */
.sidebar-nav-link:not(.sidebar-submenu-toggle) {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-decoration: none;
}

/* Indicador de flecha para botones con submenú */
.sidebar-submenu-toggle::after {
  content: '▶';
  font-size: 0.75rem;
  color: var(--sidebar-text-muted);
  transition: transform var(--sidebar-transition);
  margin-left: auto;
  flex-shrink: 0;
}

.sidebar-submenu-toggle[aria-expanded="true"]::after {
  transform: rotate(90deg);
}

/* ==========================================
   SUBMENÚS - LÓGICA DE ACORDEÓN
   ========================================== */

/* Estado inicial: todos los submenús colapsados */
.sidebar-submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  background-color: rgba(0,123,255,0.05);
  border-top: 1px solid var(--sidebar-border);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
}

/* Estado colapsado explícito */
.sidebar-submenu.collapsed {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
}

/* Estado expandido */
.sidebar-submenu.expanded {
  max-height: 800px;
  opacity: 1;
  overflow: visible;
}

/* Submenús de segundo nivel */
.sidebar-submenu-level2 {
  background-color: rgba(0,123,255,0.1);
}

.sidebar-submenu-level2.expanded {
  max-height: 600px;
}

/* Submenús scrollables para listas largas */
.sidebar-submenu.scrollable {
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--sidebar-text-muted) transparent;
}

.sidebar-submenu.scrollable.expanded {
  max-height: 280px;
  overflow-y: auto;
}

.sidebar-submenu.scrollable::-webkit-scrollbar {
  width: 4px;
}

.sidebar-submenu.scrollable::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-submenu.scrollable::-webkit-scrollbar-thumb {
  background: var(--sidebar-text-muted);
  border-radius: 2px;
}

.sidebar-submenu.scrollable::-webkit-scrollbar-thumb:hover {
  background: var(--sidebar-accent);
}

/* Items de submenú */
.sidebar-submenu-item {
  margin: 0;
  border-bottom: 1px solid rgba(0,123,255,0.1);
}

.sidebar-submenu-item:last-child {
  border-bottom: none;
}

/* Enlaces y botones de submenú */
.sidebar-submenu-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  color: var(--sidebar-text);
  font-size: 0.9rem;
  transition: var(--sidebar-transition);
  border-left: 3px solid transparent;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
}

.sidebar-submenu-level2 .sidebar-submenu-link {
  padding-left: 2rem;
  font-size: 0.85rem;
}

.sidebar-submenu-link:hover,
.sidebar-submenu-link:focus {
  background-color: rgba(0,123,255,0.15);
  color: var(--sidebar-accent);
  border-left-color: var(--sidebar-accent);
  outline: none;
}

/* Enlaces normales de submenú (no toggles) */
.sidebar-submenu-link:not(.sidebar-submenu-toggle) {
  text-decoration: none;
  justify-content: flex-start;
}

/* Indicador de flecha para botones de submenú con hijos */
.sidebar-submenu-link.sidebar-submenu-toggle::after {
  content: '▶';
  font-size: 0.7rem;
  color: var(--sidebar-text-muted);
  transition: transform var(--sidebar-transition);
  margin-left: auto;
  flex-shrink: 0;
}

.sidebar-submenu-link.sidebar-submenu-toggle[aria-expanded="true"]::after {
  transform: rotate(90deg);
}

/* Estados especiales */
.sidebar-nav-link[style*="font-weight: bold"] {
  background-color: rgba(0,123,255,0.1);
  border-left-color: var(--sidebar-accent);
}

/* ==========================================
   EFECTOS VISUALES PARA SUBMENUS SCROLLABLES
   ========================================== */

.sidebar-submenu.scrollable::before,
.sidebar-submenu.scrollable::after {
  content: '';
  position: sticky;
  height: 8px;
  background: linear-gradient(to bottom, rgba(0,123,255,0.2), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 10;
}

.sidebar-submenu.scrollable::before {
  top: 0;
  background: linear-gradient(to bottom, var(--sidebar-accent), transparent);
}

.sidebar-submenu.scrollable::after {
  bottom: 0;
  background: linear-gradient(to top, var(--sidebar-accent), transparent);
}

.sidebar-submenu.scrollable.can-scroll-up::before {
  opacity: 0.6;
}

.sidebar-submenu.scrollable.can-scroll-down::after {
  opacity: 0.6;
}

/* ==========================================
   RESPONSIVE DESIGN PARA SIDEBAR
   ========================================== */

@media (max-width: 768px) {
  :root {
    --sidebar-width: 280px;
  }
  
  .sidebar-indicator {
    height: 60px;
    width: 4px;
  }
  
  .sidebar-indicator:hover {
    width: 6px;
  }
  
  .sidebar-navigation {
    width: calc(100vw - 40px);
    max-width: 320px;
  }
  
  .sidebar-header {
    padding: 1rem;
  }
  
  .sidebar-logo {
    font-size: 1.25rem;
  }
  
  .sidebar-search-section {
    padding: 0 0.75rem 1rem 0.75rem;
  }
  
  .sidebar-nav-link {
    padding: 0.875rem 0.75rem;
  }
  
  .sidebar-submenu-link {
    padding: 0.625rem 1.25rem;
  }
  
  .sidebar-submenu-level2 .sidebar-submenu-link {
    padding-left: 1.75rem;
  }
  
  .sidebar-submenu.scrollable.expanded {
    max-height: 240px;
  }
  
  .sidebar-overlay.active {
    backdrop-filter: blur(3px);
  }
}

@media (max-width: 480px) {
  :root {
    --sidebar-width: 260px;
  }
  
  .sidebar-navigation {
    width: calc(100vw - 20px);
    max-width: 300px;
  }
  
  .sidebar-header {
    padding: 0.875rem;
  }
  
  .sidebar-logo {
    font-size: 1.125rem;
  }
  
  .sidebar-close {
    width: 28px;
    height: 28px;
    font-size: 1rem;
  }
  
  .sidebar-search-section {
    padding: 0 0.5rem 0.875rem 0.5rem;
  }
  
  .sidebar-search-input {
    font-size: 0.85rem;
    padding: 0.625rem;
  }
  
  .sidebar-nav-link {
    padding: 0.75rem 0.5rem;
    font-size: 0.9rem;
  }
  
  .sidebar-submenu-link {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }
  
  .sidebar-submenu-level2 .sidebar-submenu-link {
    padding-left: 1.5rem;
    font-size: 0.8rem;
  }
  
  .sidebar-submenu.scrollable.expanded {
    max-height: 200px;
  }
}

/* Animaciones para reducir movimiento si el usuario lo prefiere */
@media (prefers-reduced-motion: reduce) {
  .sidebar-navigation,
  .sidebar-overlay,
  .sidebar-nav-link,
  .sidebar-submenu-link,
  .sidebar-submenu,
  .sidebar-close,
  .sidebar-search-btn,
  .sidebar-search-container,
  .sidebar-indicator {
    transition-duration: 0.01ms !important;
  }
  
  .sidebar-submenu-toggle::after,
  .sidebar-submenu-link.sidebar-submenu-toggle::after {
    transition: none !important;
  }
}

/* Estados de focus mejorados para accesibilidad */
.sidebar-navigation:focus-within {
  box-shadow: var(--sidebar-shadow), 0 0 0 2px var(--sidebar-accent);
}

/* Mejoras para pantallas de alta resolución */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .sidebar-indicator {
    box-shadow: 2px 0 8px rgba(0,123,255,0.4);
  }
  
  .sidebar-navigation {
    box-shadow: 0 4px 25px rgba(0,0,0,0.18);
  }
}

/* Animaciones de entrada y salida */
.sidebar-navigation.entering {
    animation: slideInLeft 0.3s ease-out;
}

.sidebar-navigation.leaving {
    animation: slideOutLeft 0.3s ease-in;
}

@keyframes slideInLeft {
    from {
        left: -100%;
    }
    to {
        left: 0;
    }
}

@keyframes slideOutLeft {
    from {
        left: 0;
    }
    to {
        left: -100%;
    }
}

/* Clase para prevenir scroll del body cuando sidebar está abierto en móvil */
body.sidebar-open {
    overflow: hidden;
}

/* Mostrar resultados de búsqueda */
.sidebar-search-results.show {
    display: block;
    animation: fadeIn 0.2s ease-out;
}

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

/* Estados hover mejorados para elementos con scroll */
.sidebar-submenu.scrollable .sidebar-submenu-link:hover {
    background-color: rgba(0,123,255,0.2);
    transform: translateX(2px);
    transition: all 0.2s ease;
}

/* Mejora visual para elementos que están parcialmente visibles */
.sidebar-submenu.scrollable .sidebar-submenu-item:first-child .sidebar-submenu-link {
    border-top: 1px solid rgba(0,123,255,0.1);
}

.sidebar-submenu.scrollable .sidebar-submenu-item:last-child .sidebar-submenu-link {
    border-bottom: 1px solid rgba(0,123,255,0.1);
}