/**
 * Entity Linking Styles
 *
 * Styles for the knowledge base entity linking feature including:
 * - Search modal
 * - Entity results display
 * - Entity tooltips on hover
 * - Link icons on spans
 */

/* =============================================================================
   Modal Styles
   ============================================================================= */

.el-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 10000;
    align-items: center;
    justify-content: center;
}

.el-modal-content {
    background: var(--background, #fff);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.el-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border, #e5e7eb);
    background: var(--muted, #f9fafb);
}

.el-modal-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--foreground, #111827);
}

.el-close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--muted-foreground, #6b7280);
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color 0.2s;
}

.el-close-btn:hover {
    color: var(--foreground, #111827);
}

.el-modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.el-modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border, #e5e7eb);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* =============================================================================
   Search Container
   ============================================================================= */

.el-span-info {
    margin-bottom: 16px;
    padding: 12px;
    background: var(--muted, #f9fafb);
    border-radius: 6px;
}

.el-span-info strong {
    color: var(--muted-foreground, #6b7280);
    font-size: 0.85rem;
}

.el-selected-text {
    display: block;
    margin-top: 4px;
    font-weight: 500;
    color: var(--foreground, #111827);
}

.el-search-container {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.el-kb-selector {
    flex: 0 0 auto;
    min-width: 160px;
    padding: 8px 12px;
    border: 1px solid var(--border, #d1d5db);
    border-radius: 6px;
    background: var(--background, #fff);
    color: var(--foreground, #111827);
    font-size: 0.9rem;
}

.el-search-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border, #d1d5db);
    border-radius: 6px;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.el-search-input:focus {
    border-color: var(--primary, #6E56CF);
    box-shadow: 0 0 0 3px rgba(110, 86, 207, 0.1);
}

.el-search-btn {
    padding: 8px 16px;
    background: var(--primary, #6E56CF);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.el-search-btn:hover {
    background: var(--primary-hover, #5b47b3);
}

/* =============================================================================
   Loading and Results
   ============================================================================= */

.el-loading {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px;
    color: var(--muted-foreground, #6b7280);
    justify-content: center;
}

.el-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border, #e5e7eb);
    border-top-color: var(--primary, #6E56CF);
    border-radius: 50%;
    animation: el-spin 0.8s linear infinite;
}

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

.el-results {
    max-height: 300px;
    overflow-y: auto;
}

.el-result-item {
    padding: 12px;
    border: 1px solid var(--border, #e5e7eb);
    border-radius: 6px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.el-result-item:hover {
    background: var(--muted, #f9fafb);
    border-color: var(--primary, #6E56CF);
}

.el-result-item:last-child {
    margin-bottom: 0;
}

.el-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.el-result-label {
    font-weight: 600;
    color: var(--foreground, #111827);
}

.el-result-id {
    font-size: 0.8rem;
    color: var(--muted-foreground, #6b7280);
    font-family: monospace;
    background: var(--muted, #f3f4f6);
    padding: 2px 6px;
    border-radius: 4px;
}

.el-result-desc {
    font-size: 0.9rem;
    color: var(--muted-foreground, #6b7280);
    margin-top: 4px;
    line-height: 1.4;
}

.el-result-aliases {
    font-size: 0.8rem;
    color: var(--muted-foreground, #9ca3af);
    margin-top: 4px;
    font-style: italic;
}

.el-result-link {
    display: inline-block;
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--primary, #6E56CF);
    text-decoration: none;
}

.el-result-link:hover {
    text-decoration: underline;
}

.el-no-results,
.el-error {
    text-align: center;
    padding: 24px;
    color: var(--muted-foreground, #6b7280);
}

.el-error {
    color: var(--destructive, #ef4444);
}

/* =============================================================================
   Current Link Display
   ============================================================================= */

.el-current-link {
    margin-top: 16px;
    padding: 12px;
    background: rgba(110, 86, 207, 0.1);
    border-radius: 6px;
    border: 1px solid rgba(110, 86, 207, 0.2);
}

.el-current-link strong {
    font-size: 0.85rem;
    color: var(--muted-foreground, #6b7280);
}

#el-current-entity {
    margin-top: 8px;
}

.el-current-kb {
    font-weight: 600;
    color: var(--primary, #6E56CF);
}

.el-current-id {
    font-family: monospace;
    font-size: 0.9rem;
}

.el-current-label {
    color: var(--foreground, #111827);
    font-weight: 500;
}

.el-remove-link-btn {
    margin-top: 12px;
    padding: 6px 12px;
    background: var(--destructive, #ef4444);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.2s;
}

.el-remove-link-btn:hover {
    background: #dc2626;
}

/* =============================================================================
   Cancel Button
   ============================================================================= */

.el-cancel-btn {
    padding: 8px 20px;
    background: var(--muted, #f3f4f6);
    color: var(--foreground, #374151);
    border: 1px solid var(--border, #d1d5db);
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.el-cancel-btn:hover {
    background: var(--border, #e5e7eb);
}

.el-save-btn {
    padding: 8px 20px;
    background: var(--primary, #6E56CF);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.el-save-btn:hover {
    background: var(--primary-hover, #5b47b3);
}

/* =============================================================================
   Linked Entity Indicators
   ============================================================================= */

/* Highlight currently linked items in search results */
.el-result-item-linked {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.5);
}

.el-result-item-linked:hover {
    background: rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.7);
}

/* Currently linked badge */
.el-linked-badge {
    font-size: 0.7rem;
    font-weight: 600;
    color: #16a34a;
    background: rgba(34, 197, 94, 0.2);
    padding: 2px 8px;
    border-radius: 12px;
    margin-left: 8px;
    white-space: nowrap;
}

/* Multi-select checkbox */
.el-result-checkbox {
    width: 16px;
    height: 16px;
    margin-right: 8px;
    cursor: pointer;
    accent-color: var(--primary, #6E56CF);
    flex-shrink: 0;
}

/* Adjust header for checkbox */
.el-result-header {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

/* =============================================================================
   Link Icon on Spans
   ============================================================================= */

.el-link-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 4px;
    padding: 2px;
    border-radius: 3px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s, background 0.2s;
    vertical-align: middle;
}

.el-link-icon:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.1);
}

.span-highlight.has-entity-link .el-link-icon {
    opacity: 1;
    color: var(--primary, #6E56CF);
}

/* =============================================================================
   Entity Tooltip
   ============================================================================= */

.el-entity-tooltip {
    position: fixed;
    background: var(--background, #fff);
    border: 1px solid var(--border, #e5e7eb);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 10px 14px;
    max-width: 300px;
    z-index: 10001;
    font-size: 0.9rem;
}

.el-tooltip-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.el-tooltip-kb {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary, #6E56CF);
    text-transform: uppercase;
}

.el-tooltip-id {
    font-size: 0.75rem;
    color: var(--muted-foreground, #9ca3af);
    font-family: monospace;
}

.el-tooltip-label {
    font-weight: 600;
    color: var(--foreground, #111827);
    margin-bottom: 4px;
}

.el-tooltip-desc {
    font-size: 0.85rem;
    color: var(--muted-foreground, #6b7280);
    line-height: 1.4;
}

/* =============================================================================
   Schema Hint
   ============================================================================= */

.entity-linking-hint {
    font-size: 0.8rem;
    color: var(--muted-foreground, #6b7280);
    margin-bottom: 8px;
    padding: 4px 8px;
    background: rgba(110, 86, 207, 0.1);
    border-radius: 4px;
    display: inline-block;
}

/* =============================================================================
   Visual Indicator for Linked Spans
   ============================================================================= */

.span-highlight.has-entity-link {
    border-bottom: 2px dotted var(--primary, #6E56CF);
}

/* =============================================================================
   Dark Mode Support
   ============================================================================= */

@media (prefers-color-scheme: dark) {
    .el-modal-content {
        background: #1f2937;
    }

    .el-modal-header {
        background: #111827;
        border-color: #374151;
    }

    .el-modal-header h3 {
        color: #f9fafb;
    }

    .el-modal-footer {
        border-color: #374151;
    }

    .el-span-info {
        background: #111827;
    }

    .el-selected-text {
        color: #f9fafb;
    }

    .el-kb-selector,
    .el-search-input {
        background: #111827;
        border-color: #374151;
        color: #f9fafb;
    }

    .el-result-item {
        border-color: #374151;
    }

    .el-result-item:hover {
        background: #374151;
    }

    .el-result-label {
        color: #f9fafb;
    }

    .el-result-id {
        background: #374151;
    }

    .el-entity-tooltip {
        background: #1f2937;
        border-color: #374151;
    }

    .el-tooltip-label {
        color: #f9fafb;
    }
}

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

@media (max-width: 600px) {
    .el-search-container {
        flex-direction: column;
    }

    .el-kb-selector {
        width: 100%;
    }

    .el-modal-content {
        width: 95%;
        max-height: 90vh;
    }

    .el-result-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}