/* ======================================
   STYLES POUR LES MATÉRIAUX ÉTENDUS
   ====================================== */

/* Onglets Couleurs/Textures */
.material-tabs {
    display: flex;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.material-tab {
    padding: 10px 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-disabled);
    transition: all 0.3s ease;
    border-bottom: 2px solid transparent;
}

.material-tab.active {
    color: var(--info-color);
    border-bottom-color: var(--info-color);
    background: rgba(33, 150, 243, 0.05);
}

.material-tab:hover {
    background: rgba(33, 150, 243, 0.1);
}

/* Contenu des onglets */
.material-tab-content {
    display: none;
}

.material-tab-content.active {
    display: block;
}

/* Sections de matériaux */
.material-section {
    margin-bottom: 25px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.material-section-header {
    background: linear-gradient(135deg, var(--tertiary-bg) 0%, var(--secondary-bg) 100%);
    padding: 12px 16px;
    font-weight: bold;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-normal);
}

.material-section-header:hover {
    background: linear-gradient(135deg, var(--border-light) 0%, var(--tertiary-bg) 100%);
}

.material-section-header .expand-icon {
    font-size: 14px;
    transition: transform 0.3s ease;
}

.material-section.collapsed .expand-icon {
    transform: rotate(-90deg);
}

.material-section-content {
    padding: 16px;
    background: var(--secondary-bg);
}

.material-section.collapsed .material-section-content {
    display: none;
}

/* Grille des matériaux améliorée */
.material-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin-top: 10px;
}

.material-item {
    background: var(--secondary-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition-normal);
    text-align: center;
    position: relative;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.material-item:hover {
    border-color: var(--info-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.material-item.active {
    border-color: var(--info-color);
    background: rgba(33, 150, 243, 0.1);
    box-shadow: 0 0 10px rgba(33, 150, 243, 0.3);
}

/* === SYSTÈME DE PINCEAU === */
.material-paint-action {
    position: absolute;
    top: 4px;
    left: 4px;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s ease;
}

.material-item:hover .material-paint-action {
    opacity: 1;
    transform: scale(1);
}

.paint-btn {
    background: rgba(74, 144, 226, 0.9);
    border: none;
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.paint-btn:hover {
    background: #4a90e2;
    transform: scale(1.1);
    box-shadow: 0 3px 8px rgba(74, 144, 226, 0.4);
}

.paint-btn:active {
    transform: scale(0.95);
}

/* Mode pinceau actif */
.material-item.painting-selected {
    border-color: #f39c12;
    background: #fef9e7;
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.material-item.painting-selected .paint-btn {
    background: #f39c12;
    animation: pulse-paint 2s infinite;
}

@keyframes pulse-paint {
    0% { box-shadow: 0 2px 4px rgba(243, 156, 18, 0.4); }
    50% { box-shadow: 0 4px 12px rgba(243, 156, 18, 0.8); }
    100% { box-shadow: 0 2px 4px rgba(243, 156, 18, 0.4); }
}

.material-preview {
    width: 100%;
    height: 40px;
    border-radius: 4px;
    margin-bottom: 8px;
    border: 1px solid rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.material-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: inherit;
    opacity: 0.9;
}

.material-name {
    font-size: 11px;
    font-weight: 500;
    color: #333;
    line-height: 1.2;
    margin-bottom: 4px;
}

.material-code {
    font-size: 9px;
    color: var(--text-disabled);
    font-family: 'Courier New', monospace;
    margin-bottom: 2px;
}

.material-description {
    font-size: 8px;
    color: #888;
    font-style: italic;
    line-height: 1.1;
    max-height: 24px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Tooltip pour les descriptions complètes */
.material-item[title] {
    position: relative;
}

.material-tooltip {
    position: absolute;
    top: -5px;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    background: rgba(0,0,0,0.9);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 1000;
    max-width: 200px;
    white-space: normal;
    text-align: left;
}

.material-item:hover .material-tooltip {
    opacity: 1;
}

/* Styles pour différents types de matériaux */
.material-section.bois .material-section-header {
    background: linear-gradient(135deg, #8B4513 0%, #A0522D 100%);
    color: white;
}

.material-section.pierres .material-section-header {
    background: linear-gradient(135deg, #696969 0%, #808080 100%);
    color: white;
}

.material-section.metaux .material-section-header {
    background: linear-gradient(135deg, #C0C0C0 0%, #A9A9A9 100%);
    color: #333;
}

.material-section.briques-tuiles .material-section-header {
    background: linear-gradient(135deg, #B22222 0%, #CD5C5C 100%);
    color: white;
}

.material-section.modernes-composites .material-section-header {
    background: linear-gradient(135deg, #4169E1 0%, #6495ED 100%);
    color: white;
}

/* Recherche de matériaux */
.material-search {
    position: relative;
    margin-bottom: 15px;
}

.material-search input {
    width: 100%;
    padding: 10px 40px 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
}

.material-search .search-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-disabled);
    pointer-events: none;
}

.material-search .clear-search {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-disabled);
    cursor: pointer;
    font-size: 16px;
    display: none;
}

.material-search input:not(:placeholder-shown) ~ .search-icon {
    display: none;
}

.material-search input:not(:placeholder-shown) ~ .clear-search {
    display: block;
}

/* Stats des matériaux */
.material-stats {
    background: #f8f9fa;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px;
    margin-bottom: 15px;
    font-size: 12px;
    color: var(--text-disabled);
}

.material-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 8px;
    text-align: center;
}

.material-stat-item {
    background: white;
    padding: 6px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.material-stat-value {
    font-weight: bold;
    color: #333;
    display: block;
    font-size: 14px;
}

.material-stat-label {
    font-size: 10px;
    color: var(--text-disabled);
    margin-top: 2px;
}

/* Responsive */
@media (max-width: 768px) {
    .material-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 8px;
    }
    
    .material-item {
        padding: 6px;
    }
    
    .material-name {
        font-size: 10px;
    }
    
    .material-code,
    .material-description {
        font-size: 8px;
    }
    
    .material-tabs {
        flex-direction: column;
    }
    
    .material-tab {
        padding: 8px 12px;
    }
}

/* Animation d'apparition */
@keyframes materialFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.material-item {
    animation: materialFadeIn 0.3s ease-out;
}

/* États de chargement */
.material-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100px;
    color: var(--text-disabled);
}

.material-loading::after {
    content: '⟳';
    display: inline-block;
    animation: spin 1s linear infinite;
    margin-left: 8px;
    font-size: 16px;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}