/**
 * ═══════════════════════════════════════════════════════════════
 * CATEGORY MENU - Estilos responsive para menú de categorías
 * ═══════════════════════════════════════════════════════════════
 *
 * Sistema adaptativo:
 * - Desktop (>992px): Dropdown 2 columnas debajo del botón
 * - Tablet (769-992px): Modal centrado con backdrop blur
 * - Mobile (<768px): Fullscreen slide-up desde abajo
 */

:root {
  --menu-primary-color: #4a90e2;
  --menu-text-primary: #2c3e50;
  --menu-text-secondary: #7f8c8d;
  --menu-border-color: #e0e0e0;
  --menu-hover-bg: #f8f9fa;
  --menu-transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   OVERLAY BASE (común para todos los modos)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.category-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: var(--menu-transition);
}

.category-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   CONTAINER BASE
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.category-menu-container {
  background: white;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   PANELS (Categorías y Subcategorías)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.category-panel {
  display: flex;
  flex-direction: column;
  background: white;
  transition: var(--menu-transition);
}

.category-panel.active {
  opacity: 1;
  visibility: visible;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--menu-border-color);
  background: #f8f9fa;
}

.panel-title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--menu-text-primary);
}

.panel-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.panel-body {
  flex: 1;
  overflow-y: auto;
  max-height: calc(80vh - 60px);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   BOTONES DE HEADER
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.btn-sort {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: white;
  border: 1px solid var(--menu-border-color);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--menu-text-primary);
  transition: var(--menu-transition);
}

.btn-sort:hover {
  background: var(--menu-hover-bg);
  border-color: var(--menu-primary-color);
}

.btn-sort svg {
  width: 16px;
  height: 16px;
}

.sort-label {
  font-weight: 600;
}

.btn-close,
.btn-close-sub {
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--menu-text-secondary);
  transition: var(--menu-transition);
  border-radius: 6px;
}

.btn-close:hover,
.btn-close-sub:hover {
  background: var(--menu-hover-bg);
  color: var(--menu-text-primary);
}

.btn-back {
  display: none;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--menu-primary-color);
  font-weight: 600;
  transition: var(--menu-transition);
  border-radius: 6px;
}

.btn-back:hover {
  background: var(--menu-hover-bg);
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   LISTAS (Categorías y Subcategorías)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.categories-list,
.subcategories-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-item,
.subcategory-item {
  border-bottom: 1px solid var(--menu-border-color);
}

.category-item:last-child,
.subcategory-item:last-child {
  border-bottom: none;
}

/* Items de categoría */
.category-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.category-link,
.subcategory-link {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  text-decoration: none;
  color: var(--menu-text-primary);
  transition: var(--menu-transition);
}

.category-link:hover,
.subcategory-link:hover {
  background: var(--menu-hover-bg);
  color: var(--menu-primary-color);
}

.category-name,
.subcategory-name {
  font-weight: 500;
  font-size: 0.9375rem;
}

.category-count,
.subcategory-count {
  font-size: 0.875rem;
  color: var(--menu-text-secondary);
  font-weight: 600;
}

/* Botón de flecha */
.btn-arrow {
  background: none;
  border: none;
  padding: 1rem 1rem 1rem 0.5rem;
  margin-right: 0.5rem;
  cursor: pointer;
  color: var(--menu-text-secondary);
  transition: var(--menu-transition);
  display: flex;
  align-items: center;
}

.btn-arrow:hover {
  color: var(--menu-primary-color);
  transform: translateX(2px);
}

.btn-arrow svg {
  width: 20px;
  height: 20px;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   ESTADOS (Loading, Empty)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.loading-state,
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  color: var(--menu-text-secondary);
}

.loading-state p,
.empty-state p {
  margin: 1rem 0 0 0;
  font-size: 0.9375rem;
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   DESKTOP (>992px) - Drawer desde la izquierda, altura completa
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@media (min-width: 993px) {
  .category-menu-overlay {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
  }

  .category-menu-container {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 400px;
    display: flex;
    overflow: hidden;
    border-radius: 0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    pointer-events: auto;
    z-index: 10000;
  }

  .category-menu-overlay.active .category-menu-container {
    transform: translateX(0);
  }

  .category-panel {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: auto;
  }

  .subcategory-panel {
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
  }

  .category-menu-container.show-subcategories .category-panel:not(.subcategory-panel) {
    transform: translateX(-100%);
    opacity: 0;
    pointer-events: none;
  }

  .category-menu-container.show-subcategories .subcategory-panel {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  .btn-back {
    display: flex;
  }

  .btn-close {
    display: flex;
  }

  .btn-close-sub {
    display: flex;
  }

  .panel-body {
    max-height: 100vh;
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   TABLET (769-992px) - Drawer desde la izquierda con backdrop
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@media (min-width: 769px) and (max-width: 992px) {
  .category-menu-overlay {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
  }

  .category-menu-container {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 380px;
    display: flex;
    overflow: hidden;
    border-radius: 0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    pointer-events: auto;
    z-index: 10000;
  }

  .category-menu-overlay.active .category-menu-container {
    transform: translateX(0);
  }

  .category-panel {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: auto;
  }

  .subcategory-panel {
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
  }

  .category-menu-container.show-subcategories .category-panel:not(.subcategory-panel) {
    transform: translateX(-100%);
    opacity: 0;
    pointer-events: none;
  }

  .category-menu-container.show-subcategories .subcategory-panel {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  .btn-back {
    display: flex;
  }

  .btn-close {
    display: flex;
  }

  .btn-close-sub {
    display: flex;
  }

  .panel-body {
    max-height: 100vh;
  }
}

/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   MOBILE (<768px) - Fullscreen slide-up
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

@media (max-width: 768px) {
  .category-menu-overlay {
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
  }

  .category-menu-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 85vh;
    border-radius: 20px 20px 0 0;
    display: flex;
    transform: translateY(100%);
    transition: transform 0.3s ease;
  }

  .category-menu-overlay.active .category-menu-container {
    transform: translateY(0);
  }

  .category-panel {
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    transition: transform 0.3s ease, opacity 0.2s ease;
  }

  .subcategory-panel {
    transform: translateX(100%);
    opacity: 0;
  }

  .category-menu-container.show-subcategories .category-panel:not(.subcategory-panel) {
    transform: translateX(-100%);
    opacity: 0;
  }

  .category-menu-container.show-subcategories .subcategory-panel {
    transform: translateX(0);
    opacity: 1;
  }

  .btn-back {
    display: flex;
  }

  .btn-close {
    display: flex;
  }

  .btn-close-sub {
    display: flex;
  }

  .panel-body {
    max-height: none;
  }

  /* Items más espaciados en móvil */
  .category-link,
  .subcategory-link {
    padding: 1.25rem 1.5rem;
  }

  .btn-arrow {
    padding: 1.25rem 1rem 1.25rem 0.5rem;
  }
}