/* ========================================
   SIDEBAR NAVIGATION - STYLES DÉDIÉS (4 NIVEAUX)
   ======================================== */

/* ========================================
   MENU LATÉRAL OVERLAY
   ======================================== */

.shop-sidebar {
    position: fixed;
    left: -320px;
    top: 0;
    width: 320px;
    height: 100vh;
    background: var(--color-white);
    border-right: 1px solid #e2e8f0;
    padding: 0;
    z-index: 10000; /* MODIFIÉ: était 2000, maintenant 10000 pour passer au-dessus de la bannière */
    box-shadow: 2px 0 20px rgba(0,0,0,0.1);
    transition: left 0.3s ease;
    overflow-y: auto;
}

.shop-sidebar.open {
    left: 0;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 2px solid var(--color-accent);
    background: var(--color-gray-light);
    position: sticky;
    top: 0;
    z-index: 10;
}

.sidebar-header h2 {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--color-primary);
    margin: 0;
}

.sidebar-close {
    background: none;
    border: none;
    color: var(--color-gray);
    cursor: pointer;
    padding: 5px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.sidebar-close:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.category-nav {
    padding: 25px;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 9999; /* MODIFIÉ: était 1999, maintenant 9999 pour être juste sous le sidebar */
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   NAVIGATION HIÉRARCHIQUE
   ======================================== */

.category-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
    margin-bottom: 2px;
}

/* Structure simple des éléments de navigation */
.nav-item > .nav-link {
    display: block;
    padding: 10px 40px 10px 15px;
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    position: relative;
    min-height: 40px;
    line-height: 20px;
}

.nav-link:hover {
    background: var(--color-gray-light);
    color: var(--color-primary);
}

.nav-link.active {
    background: none;
    color: var(--color-text);
    font-weight: 600;
}

/* Boutons de déploiement */
.nav-toggle {
    position: absolute;
    right: 0;
    top: 0;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    color: var(--color-gray);
    cursor: pointer;
    font-size: 12px;
    border-radius: 3px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
}

.nav-toggle:hover {
    background: rgba(0,0,0,0.1);
    color: var(--color-primary);
}

.nav-toggle.expanded .toggle-icon {
    transform: rotate(90deg);
}

.toggle-icon {
    display: inline-block;
    transition: transform 0.2s ease;
    font-size: 10px;
}

/* ========================================
   STRUCTURE DES NIVEAUX - MISE À JOUR
   ======================================== */

/* Niveau 1 : catégories principales */
.nav-level-1 > .nav-item {
    margin-bottom: 3px;
}

.nav-level-1 > .nav-item > .nav-link {
    font-size: 1rem;
    font-weight: 600;
    padding-left: 15px;
    min-height: 42px;
}

/* Niveau 2 : sous-catégories */
.nav-level-2 {
    margin-left: 20px;
    border-left: 2px solid var(--color-gray-light);
    padding-left: 10px;
    margin-top: 3px;
}

.nav-level-2 > .nav-item {
    margin-bottom: 2px;
}

.nav-level-2 > .nav-item > .nav-link {
    font-size: 0.9rem;
    padding: 8px 35px 8px 12px;
    color: var(--color-text);
    min-height: 36px;
}

.nav-level-2 > .nav-item > .nav-toggle {
    right: 0;
    top: 0;
    width: 35px;
    height: 36px;
}

/* Niveau 3 : sous-sous-catégories (NOUVEAU - plus de couleur verte) */
.nav-level-3 {
    margin-left: 20px;
    border-left: 2px solid #ddd;
    padding-left: 10px;
    margin-top: 3px;
}

.nav-level-3 > .nav-item {
    margin-bottom: 2px;
}

.nav-level-3 > .nav-item > .nav-link {
    font-size: 0.85rem;
    padding: 6px 35px 6px 10px;
    color: var(--color-text);
    min-height: 32px;
    font-weight: 500;
}

.nav-level-3 > .nav-item > .nav-toggle {
    right: 0;
    top: 0;
    width: 35px;
    height: 32px;
}

/* Niveau 4 : tags (NOUVEAU - ancien niveau 3) */
.nav-level-4 {
    margin-left: 15px;
    border-left: 2px solid var(--color-accent);
    padding-left: 8px;
    margin-top: 2px;
}

.nav-level-4 > .nav-item > .nav-link {
    font-size: 0.8rem;
    padding: 5px 8px;
    color: var(--color-gray);
    min-height: 28px;
    font-style: italic;
}

.nav-level-4 .nav-toggle {
    display: none;
}

/* ========================================
   EN-TÊTES DE GROUPES POUR LES TAGS (NIVEAU 4)
   ======================================== */

.nav-group-header {
    margin: 8px 0 4px 0;
    padding: 0;
}

.nav-group-header .group-title {
    display: block;
    padding: 5px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: #f0f9ff;
    border-radius: 3px;
    border-left: 3px solid var(--color-primary);
}

/* ========================================
   STYLES SPÉCIFIQUES POUR LES TAGS (NIVEAU 4)
   ======================================== */

.nav-tag-item {
    margin-bottom: 1px;
}

.nav-tag-link {
    display: block;
    padding: 6px 12px 6px 18px;
    font-size: 0.8rem;
    color: var(--color-gray);
    text-decoration: none;
    border-radius: 3px;
    transition: var(--transition);
    position: relative;
    min-height: auto;
    line-height: 1.3;
}

.nav-tag-link::before {
    content: "•";
    position: absolute;
    left: 8px;
    color: var(--color-accent);
    font-size: 0.9rem;
    top: 50%;
    transform: translateY(-50%);
}

.nav-tag-link:hover {
    background: rgba(0,0,0,0.05);
    color: var(--color-primary);
    padding-left: 20px;
}

.nav-tag-link:hover::before {
    color: var(--color-primary);
    transform: translateY(-50%) scale(1.2);
}

/* Tag avec couleur personnalisée */
.nav-tag-link[style*="color"] {
    font-weight: 500;
}

.nav-tag-link[style*="color"]:hover {
    background: rgba(0,0,0,0.08);
}

/* ========================================
   MESSAGES D'ÉTAT
   ======================================== */

.loading-item,
.error-item,
.empty-item {
    padding: 8px 12px;
    font-size: 0.8rem;
    color: var(--color-gray);
    font-style: italic;
    text-align: center;
    background: #f9f9f9;
    border-radius: 3px;
    margin: 3px 0;
}

.error-item {
    color: #dc2626;
    background: #fef2f2;
}

/* ========================================
   FILTRES PAR TAGS DANS LA SIDEBAR
   ======================================== */

.filters-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.filters-header h3 {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--color-primary);
    margin: 0;
}

.clear-filters-btn {
    background: var(--color-accent);
    color: var(--color-text);
    border: none;
    padding: 6px 12px;
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.clear-filters-btn:hover {
    background: #c4a56b;
    transform: translateY(-1px);
}

.filter-group {
    margin-bottom: 20px;
}

.filter-group-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-text);
    transition: var(--transition);
}

.filter-checkbox:hover {
    color: var(--color-primary);
}

.filter-checkbox input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-gray);
    border-radius: 3px;
    margin-right: 10px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.filter-checkbox input[type="checkbox"]:checked + .checkmark {
    background: var(--color-secondary);
    border-color: var(--color-secondary);
}

.filter-checkbox input[type="checkbox"]:checked + .checkmark::after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--color-white);
    font-size: 12px;
    font-weight: bold;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1200px) {
    .shop-sidebar {
        width: 250px;
        left: -250px;
    }
}

@media (max-width: 968px) {
    .shop-sidebar {
        width: 280px;
        left: -280px;
    }
    
    .category-nav {
        padding: 20px;
    }
    
    .nav-level-2,
    .nav-level-3,
    .nav-level-4 {
        margin-left: 15px;
        padding-left: 8px;
    }
    
    .nav-tag-link {
        padding: 5px 10px 5px 16px;
        font-size: 0.75rem;
    }
    
    .nav-tag-link::before {
        left: 6px;
        font-size: 0.8rem;
    }
}

@media (max-width: 600px) {
    .shop-sidebar {
        width: 260px;
        left: -260px;
    }
    
    .sidebar-header {
        padding: 15px 20px;
    }
    
    .sidebar-header h2 {
        font-size: 1.2rem;
    }
    
    .category-nav {
        padding: 15px;
    }
    
    .nav-tag-link {
        padding: 4px 8px 4px 14px;
        font-size: 0.7rem;
    }
    
    .nav-tag-link::before {
        left: 5px;
        font-size: 0.7rem;
    }
}