/* ===========================================
   Bibliothèque de ressources partagées
   =========================================== */

/* Loading */
.loading-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 15px;
}

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

/* Info bar */
.biblio-info {
    padding: 10px 20px;
    background: #e3f2fd;
    border-bottom: 1px solid #90caf9;
    font-size: 0.85rem;
    color: #1565c0;
    line-height: 1.4;
    text-align: center;
}

/* ===========================================
   Toolbar
   =========================================== */

.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 15px 20px;
    background: var(--white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 20px;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.filter-search input {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-small);
    font-size: 0.9rem;
    width: 200px;
    transition: border-color 0.2s;
}

.filter-search input:focus {
    outline: none;
    border-color: var(--primary);
}

.filter-select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-small);
    font-size: 0.85rem;
    background: var(--white);
    cursor: pointer;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
}

.results-count {
    color: var(--text-light);
    font-size: 0.9rem;
    white-space: nowrap;
}

/* Toggle vue grille/liste */
.view-toggle {
    display: flex;
    border: 1px solid var(--border);
    border-radius: var(--radius-small);
    overflow: hidden;
}

.view-btn {
    padding: 6px 10px;
    border: none;
    background: var(--white);
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-light);
    transition: all 0.2s;
    line-height: 1;
}

.view-btn:hover {
    background: var(--secondary);
}

.view-btn.active {
    background: var(--primary);
    color: white;
}

/* ===========================================
   Grille de séries (mode cartes)
   =========================================== */

.biblio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.biblio-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
    overflow: hidden;
}

.biblio-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Image de couverture */
.biblio-card-cover {
    width: 100%;
    height: 140px;
    background: var(--secondary, #f0f0f0);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.biblio-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.biblio-cover-placeholder {
    width: 60px;
    height: 60px;
    opacity: 0;
}

.biblio-card-body {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.biblio-card h3 {
    color: var(--text);
    margin: 0 0 0.4rem;
    font-size: 1.1rem;
}

.biblio-card-author {
    font-size: 0.85rem;
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 0.6rem;
}

.biblio-card-meta {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.5rem;
    align-items: center;
}

.biblio-badge {
    font-size: 0.8rem;
    background: var(--secondary);
    padding: 3px 10px;
    border-radius: 12px;
    color: var(--text-light);
    white-space: nowrap;
}

.biblio-badge-theme {
    background: #e8f5e9;
    color: #2e7d32;
}

.biblio-badge-niveau {
    font-size: 0.72rem;
    background: #e3f2fd;
    color: #1565c0;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
    white-space: nowrap;
}

.biblio-niveaux {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.biblio-counters {
    font-size: 0.82rem;
    color: var(--text-light);
    margin: 0 0 0.6rem;
}

/* ===========================================
   Bouton Aperçu
   =========================================== */

.btn-preview-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.7rem;
    font-size: 0.8rem;
    background: var(--secondary, #f0f0f0);
    border: 1px solid var(--border, #e0e0e0);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-light, #666);
    transition: all 0.2s;
    margin-bottom: 0.5rem;
    width: fit-content;
}

.btn-preview-toggle:hover {
    background: var(--primary, #4a7c59);
    color: white;
    border-color: var(--primary, #4a7c59);
}

/* ===========================================
   Aperçu (preview grid)
   =========================================== */

.biblio-preview {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.biblio-preview.open {
    margin-bottom: 0.75rem;
}

.preview-loading {
    display: flex;
    justify-content: center;
    padding: 1rem;
}

.spinner-small {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border, #e0e0e0);
    border-top-color: var(--primary, #4a7c59);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.preview-word {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.preview-word img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 6px;
    background: var(--secondary, #f0f0f0);
}

.preview-no-image {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--secondary, #f0f0f0);
    border-radius: 6px;
    font-size: 1.5rem;
    color: var(--text-light, #999);
}

.preview-word-text {
    font-size: 0.7rem;
    color: var(--text-light, #666);
    text-align: center;
    max-width: 70px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-empty {
    font-size: 0.85rem;
    color: var(--text-light, #666);
    text-align: center;
    padding: 0.75rem 0;
    margin: 0;
}

/* ===========================================
   Bouton Voir les ressources
   =========================================== */

.biblio-card-actions {
    margin-top: auto;
    padding-top: 0.75rem;
}

.btn-ressources {
    display: block;
    text-align: center;
    text-decoration: none;
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    border-radius: var(--radius-small);
}

/* ===========================================
   Mode Liste
   =========================================== */

.biblio-list {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.biblio-list-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr 0.5fr 1fr 0.3fr;
    gap: 12px;
    padding: 12px 16px;
    background: var(--secondary);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.biblio-list-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr 0.5fr 1fr 0.3fr;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border, #eee);
    align-items: center;
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--text);
    transition: background 0.15s;
}

.biblio-list-row:hover {
    background: var(--secondary, #f8f8f8);
}

.biblio-col-title {
    font-weight: 500;
}

.biblio-col-author {
    color: var(--text-light);
    font-size: 0.85rem;
}

.biblio-col-theme {
    font-size: 0.85rem;
}

.biblio-col-niveaux {
    display: flex;
    gap: 3px;
    flex-wrap: wrap;
}

.biblio-col-count {
    text-align: center;
    font-weight: 500;
}

.biblio-col-resources {
    font-size: 0.85rem;
    display: flex;
    gap: 6px;
}

.biblio-col-action {
    text-align: center;
    color: var(--primary);
    font-weight: bold;
    font-size: 1.1rem;
}

.biblio-text-light {
    color: var(--text-light, #999);
}

/* ===========================================
   État vide
   =========================================== */

.biblio-empty {
    text-align: center;
    padding: 60px 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.biblio-empty-icon {
    font-size: 4rem;
    margin-bottom: 15px;
}

.biblio-empty h3 {
    color: var(--text);
    margin-bottom: 8px;
}

.biblio-empty p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===========================================
   Responsive
   =========================================== */

@media (max-width: 768px) {
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-left {
        flex-direction: column;
    }

    .toolbar-right {
        justify-content: space-between;
    }

    .filter-search input {
        width: 100%;
    }

    .filter-select {
        width: 100%;
    }

    .biblio-grid {
        grid-template-columns: 1fr;
    }

    /* Liste → cartes sur mobile */
    .biblio-list-header {
        display: none;
    }

    .biblio-list-row {
        display: flex;
        flex-wrap: wrap;
        gap: 4px 12px;
        padding: 12px 16px;
    }

    .biblio-col-title {
        width: 100%;
        font-size: 1rem;
    }

    .biblio-col-author {
        font-size: 0.8rem;
    }

    .biblio-col-action {
        margin-left: auto;
    }

    .preview-word img,
    .preview-no-image {
        width: 48px;
        height: 48px;
    }

    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
    }

    .preview-word-text {
        max-width: 56px;
        font-size: 0.65rem;
    }
}