/* word-lib.css */
.lib-detail-container {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-lg);
}

.unit-list {
    width: 280px;
    background: linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    max-height: 500px;
    overflow-y: auto;
    box-shadow: var(--shadow-sm);
}

.unit-list h4 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--primary);
}

.unit-item {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    border: 2px solid transparent;
}

.unit-item:hover {
    background: var(--bg-card);
    border-color: var(--primary-light);
    transform: translateX(4px);
}

.unit-item.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-color: var(--primary);
}

.word-list-container {
    flex: 1;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.word-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.word-table th {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: var(--space-md);
    text-align: left;
    font-weight: 700;
}

.word-table th:first-child {
    border-radius: var(--radius-md) 0 0 0;
}

.word-table th:last-child {
    border-radius: 0 var(--radius-md) 0 0;
}

.word-table td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s ease;
}

.word-table tr:hover td {
    background: var(--bg-primary);
}

.lib-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 3px solid transparent;
    position: relative;
    overflow: hidden;
}

.lib-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent-yellow));
}

.lib-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.lib-card h4 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.lib-card p {
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.wordlib-sections {
    display: grid;
    gap: var(--space-xl);
}

.wordlib-create-card {
    position: relative;
    overflow: hidden;
    padding: var(--space-xl);
    border: 1px solid rgba(255, 107, 53, 0.18);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 247, 236, 0.95));
    box-shadow: var(--shadow-md);
}

.wordlib-create-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent-yellow));
}

.wordlib-create-card::after {
    content: '';
    position: absolute;
    top: -60px;
    right: -60px;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.16) 0%, rgba(255, 255, 255, 0) 70%);
    pointer-events: none;
}

.wordlib-create-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
    position: relative;
    z-index: 1;
}

.wordlib-create-title {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.wordlib-create-icon {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 1.2rem;
    box-shadow: var(--shadow-sm);
}

.wordlib-create-card h3 {
    margin: 0;
    padding: 0;
    border: none;
    font-size: 1.35rem;
    display: block;
}

.wordlib-create-subtitle {
    margin-top: 2px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.wordlib-create-tip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 6px 12px;
    border-radius: var(--radius-full);
    border: 1px dashed rgba(255, 107, 53, 0.35);
    background: rgba(255, 255, 255, 0.7);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.wordlib-create-controls {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    align-items: flex-end;
    position: relative;
    z-index: 1;
}

.wordlib-create-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.wordlib-create-field--name {
    flex: 2 1 360px;
    min-width: 280px;
}

.wordlib-create-field input {
    height: 44px;
}

.wordlib-admin-category {
    display: grid;
    grid-template-columns: repeat(2, minmax(180px, 1fr));
    gap: var(--space-md);
    flex: 2 1 380px;
}

.wordlib-admin-category input {
    width: 100%;
}

.wordlib-field-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.wordlib-create-action {
    margin-left: auto;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-xs);
}

.wordlib-create-action .btn {
    height: 44px;
    padding: 0 var(--space-xl);
}

.wordlib-create-note {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.wordlib-view-row {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin: var(--space-md) 0 var(--space-lg);
}

.wordlib-view-toggle {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin: 0;
}

.wordlib-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: 0 16px;
    height: 36px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.wordlib-toggle-btn:hover {
    color: var(--primary);
    border-color: var(--primary-light);
    transform: translateY(-1px);
}

.wordlib-toggle-btn.is-active {
    color: #fff;
    border-color: transparent;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    box-shadow: var(--shadow-sm);
}

.wordlib-toggle-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.wordlib-section--search {
    border: 1px dashed rgba(102, 126, 234, 0.4);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 244, 255, 0.96));
}

.wordlib-search-controls {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: nowrap;
    align-items: center;
    flex: 1 1 320px;
}

.wordlib-search-controls input {
    flex: 1 1 220px;
    min-width: 200px;
    width: auto;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--radius-full);
}

.wordlib-search-controls .btn {
    padding: 0 12px;
    height: 36px;
    font-size: 0.95rem;
    border-radius: var(--radius-full);
}

.wordlib-sections .card {
    margin-bottom: 0;
}

.wordlib-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}

.wordlib-section-header h3 {
    margin: 0;
    padding: 0;
    border: none;
}

.wordlib-section-subtitle {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: var(--space-xs);
}

.wordlib-section-stats {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.wordlib-stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 700;
    border: 1px solid var(--border-color);
}

.wordlib-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-lg);
}

.wordlib-catalog {
    display: grid;
    gap: var(--space-lg);
}

.wordlib-section--official {
    border: 1px solid rgba(78, 205, 196, 0.35);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 249, 240, 0.92));
}

.wordlib-category {
    position: relative;
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.06);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.9));
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.wordlib-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--category-accent, var(--primary)), var(--secondary));
}

.wordlib-category::after {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, var(--category-accent, var(--primary)) 0%, rgba(255, 255, 255, 0) 70%);
    opacity: 0.15;
}

.wordlib-category-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-md);
    position: relative;
    z-index: 1;
}

.wordlib-category-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.wordlib-category-title i {
    color: var(--category-accent, var(--primary));
}

.wordlib-category-meta {
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-primary);
    border-radius: var(--radius-full);
    padding: 4px 10px;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.wordlib-category-grid,
.wordlib-edition-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-md);
    position: relative;
    z-index: 1;
}

.wordlib-edition {
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.92);
    border: 1px dashed rgba(0, 0, 0, 0.08);
    padding: var(--space-md);
    margin-top: var(--space-md);
    position: relative;
    z-index: 1;
}

.wordlib-edition:first-of-type {
    margin-top: 0;
}

.wordlib-edition-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.wordlib-edition-name {
    font-weight: 700;
    color: var(--text-primary);
}

.wordlib-edition-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: var(--bg-primary);
    border-radius: var(--radius-full);
    padding: 2px 8px;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.lib-card-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.lib-card-title h4 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.lib-card-title i {
    color: var(--primary);
}

.lib-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.lib-meta-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
}

.lib-card-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.lib-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    color: white;
    white-space: nowrap;
}

.lib-badge--official {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.lib-badge--mine {
    background: var(--success);
}

.lib-badge--shared {
    background: var(--info);
}

.lib-card--compact {
    padding: var(--space-md);
    border-width: 2px;
}

.lib-card--compact h4 {
    font-size: 1.05rem;
}

.lib-card--compact .lib-card-meta {
    margin-bottom: var(--space-sm);
}

.lib-card--compact .btn {
    padding: 6px 10px;
    font-size: 0.85rem;
}

.lib-card--compact .lib-card-actions {
    margin-top: var(--space-sm);
}

.wordlib-empty {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--text-muted);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border-color);
    background: var(--bg-primary);
}

.wordlib-empty i {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    color: var(--primary-light);
}

.template-format {
    background: linear-gradient(135deg, var(--bg-primary), #FFF5E6);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin: var(--space-md) 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    border-left: 4px solid var(--primary);
    line-height: 1.8;
}

.batch-add-area {
    width: 100%;
    height: 200px;
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    font-family: 'Courier New', monospace;
    margin: var(--space-md) 0;
    resize: vertical;
    transition: border-color 0.3s ease;
}

.batch-add-area:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.15);
}

.import-tabs {
    display: flex;
    margin-bottom: var(--space-lg);
    border-bottom: 2px solid var(--border-color);
}

.import-tab {
    padding: var(--space-md) var(--space-xl);
    background: transparent;
    border: none;
    cursor: pointer;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transition: all 0.3s ease;
    position: relative;
}

.import-tab::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.import-tab:hover {
    color: var(--primary);
}

.import-tab.active {
    color: var(--primary);
    background: var(--bg-primary);
}

.import-tab.active::after {
    transform: scaleX(1);
}

@media (max-width: 768px) {
    .word-table {
        min-width: 520px;
    }

    .wordlib-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }

    .wordlib-category-grid,
    .wordlib-edition-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 600px) {
    .word-table th,
    .word-table td {
        padding: var(--space-sm);
        font-size: 0.9rem;
    }

    .wordlib-create-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .wordlib-section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .wordlib-grid,
    .wordlib-category-grid,
    .wordlib-edition-grid {
        grid-template-columns: 1fr;
    }

    .lib-card-actions {
        width: 100%;
    }

    .wordlib-create-controls,
    .wordlib-search-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .wordlib-view-row {
        flex-direction: column;
        align-items: stretch;
    }

    .wordlib-create-controls .btn,
    .wordlib-search-controls .btn {
        width: 100%;
    }

    .wordlib-admin-category {
        grid-template-columns: 1fr;
        width: 100%;
    }

    .wordlib-create-action {
        width: 100%;
        align-items: stretch;
    }

    .wordlib-create-action .btn {
        justify-content: center;
    }

    .wordlib-create-tip {
        width: 100%;
        justify-content: center;
    }

    .wordlib-search-controls input {
        width: 100%;
    }

    .wordlib-view-toggle {
        width: 100%;
    }

    .wordlib-toggle-btn {
        width: 100%;
        justify-content: center;
    }

    .lib-card-actions .btn {
        flex: 1;
        justify-content: center;
    }
}