json_schema_editor

@layer components {
  .jse-host {
    display: block;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";

    /* 
     * Theme Variables with Fallbacks 
     * The pattern --_private: var(--public, default) allows users to override 
     * these variables on a parent container without fighting specificity.
     */
     
    /* Backgrounds */
    --_jse-bg: var(--jse-bg, #ffffff);
    --_jse-bg-secondary: var(--jse-bg-secondary, #f3f4f6);
    --_jse-bg-tertiary: var(--jse-bg-tertiary, #e5e7eb);

    /* Text */
    --_jse-text-primary: var(--jse-text-primary, #111827);
    --_jse-text-secondary: var(--jse-text-secondary, #4b5563);
    --_jse-text-tertiary: var(--jse-text-tertiary, #9ca3af);

    /* Borders & Focus */
    --_jse-border: var(--jse-border, #e5e7eb);
    --_jse-border-focus: var(--jse-border-focus, #6366f1);

    /* Primary Brand */
    --_jse-primary: var(--jse-primary, #4f46e5);
    --_jse-primary-hover: var(--jse-primary-hover, #4338ca);
    --_jse-primary-text: var(--jse-primary-text, #ffffff);

    /* States */
    --_jse-danger: var(--jse-danger, #dc2626);
    --_jse-danger-bg: var(--jse-danger-bg, #fef2f2);
    --_jse-danger-border: var(--jse-danger-border, #fecaca);

    --_jse-success: var(--jse-success, #059669);
    --_jse-success-bg: var(--jse-success-bg, #ecfdf5);

    /* Dimensions */
    --_jse-radius: var(--jse-radius, 0.375rem);
    --_jse-shadow-sm: var(--jse-shadow-sm, 0 1px 2px 0 rgba(0, 0, 0, 0.05));
    --_jse-shadow: var(--jse-shadow, 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06));

    /* Syntax Highlighting */
    --_jse-syntax-key: var(--jse-syntax-key, #7c3aed);
    --_jse-syntax-string: var(--jse-syntax-string, #059669);
    --_jse-syntax-number: var(--jse-syntax-number, #2563eb);
    --_jse-syntax-boolean: var(--jse-syntax-boolean, #db2777);
    --_jse-syntax-null: var(--jse-syntax-null, #9ca3af);
    --_jse-syntax-punctuation: var(--jse-syntax-punctuation, #4b5563);
    --_jse-indent-guide: var(--jse-indent-guide, #e5e7eb);
    
    /* Settings */
    --_jse-tree-row-height: var(--jse-tree-row-height, 1.75rem);
    --_jse-tree-indent: var(--jse-tree-indent, 1.25rem);
  }

  @media (prefers-color-scheme: dark) {
    .jse-host {
      --_jse-bg: var(--jse-bg, #111827);
      --_jse-bg-secondary: var(--jse-bg-secondary, #1f2937);
      --_jse-bg-tertiary: var(--jse-bg-tertiary, #374151);

      --_jse-text-primary: var(--jse-text-primary, #f9fafb);
      --_jse-text-secondary: var(--jse-text-secondary, #d1d5db);
      --_jse-text-tertiary: var(--jse-text-tertiary, #9ca3af);

      --_jse-border: var(--jse-border, #374151);
      --_jse-border-focus: var(--jse-border-focus, #818cf8);

      --_jse-primary: var(--jse-primary, #6366f1);
      --_jse-primary-hover: var(--jse-primary-hover, #818cf8);

      --_jse-danger: var(--jse-danger, #ef4444);
      --_jse-danger-bg: var(--jse-danger-bg, #450a0a);
      --_jse-danger-border: var(--jse-danger-border, #7f1d1d);

      --_jse-success: var(--jse-success, #10b981);
      --_jse-success-bg: var(--jse-success-bg, #064e3b);

      /* Syntax Highlighting (Dark) */
      --_jse-syntax-key: var(--jse-syntax-key, #a78bfa);
      --_jse-syntax-string: var(--jse-syntax-string, #34d399);
      --_jse-syntax-number: var(--jse-syntax-number, #60a5fa);
      --_jse-syntax-boolean: var(--jse-syntax-boolean, #f472b6);
      --_jse-syntax-null: var(--jse-syntax-null, #9ca3af);
      --_jse-syntax-punctuation: var(--jse-syntax-punctuation, #9ca3af);
      --_jse-indent-guide: var(--_jse-border, #374151);
    }
  }

  /* Layout & Containers */
  .jse-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    color: var(--_jse-text-primary);
    background-color: var(--_jse-bg);
    height: 100%;
    padding: 0 1rem;
  }

  .jse-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background-color: var(--_jse-bg-secondary);
    border-bottom: 1px solid var(--_jse-border);
    gap: 1rem;
  }

  .jse-schema-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex: 1;
    max-width: 500px;
    font-size: 0.875rem;
    color: var(--_jse-text-secondary);
  }

  .jse-schema-selector label {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-weight: 600;
  }

  .jse-input-group {
    position: relative;
    display: flex;
    flex: 1;
    align-items: center;
  }

  .jse-schema-selector input {
    flex: 1;
    padding: 0.25rem 0.5rem;
    padding-right: 4.5rem;
    border: 1px solid var(--_jse-border);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    background-color: var(--_jse-bg);
    color: var(--_jse-text-primary);
  }

  .jse-default-schema-btn {
    position: absolute;
    right: 4px;
    height: calc(100% - 8px);
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .jse-schema-selector input:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
    border-color: var(--_jse-border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  }

  .jse-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }


  .jse-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 9999px;
    background-color: var(--_jse-bg-secondary);
    color: var(--_jse-text-secondary);
    border: 1px solid var(--_jse-border);
  }

  .jse-badge-info {
    background-color: var(--_jse-bg-tertiary);
    color: var(--_jse-text-primary);
  }

  .jse-badge-logic {
    background-color: var(--_jse-bg-tertiary);
    color: var(--_jse-text-secondary);
    border-color: var(--_jse-border);
  }

  .jse-tabs {
    display: flex;
    gap: 0.25rem;
    background-color: var(--_jse-bg-secondary);
    padding: 0.25rem;
    border-radius: var(--_jse-radius);
    border: 1px solid var(--_jse-border);
  }

  .jse-tab-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: calc(var(--_jse-radius) - 2px);
    border: none;
    background: transparent;
    color: var(--_jse-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
  }

  .jse-tab-btn:hover {
    color: var(--_jse-text-primary);
  }

  .jse-tab-btn.active {
    background-color: var(--_jse-bg);
    color: var(--_jse-primary);
    box-shadow: var(--_jse-shadow-sm);
  }

  /* Buttons */
  .jse-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--_jse-radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
  }

  .jse-btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
  }

  .jse-btn-xs {
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
  }

  .jse-btn-primary {
    background-color: var(--_jse-primary);
    color: var(--_jse-primary-text);
    box-shadow: var(--_jse-shadow-sm);
  }

  .jse-btn-primary:hover {
    background-color: var(--_jse-primary-hover);
  }

  .jse-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
  }

  .jse-btn-secondary {
    background-color: transparent;
    color: var(--_jse-text-secondary);
    border: 1px dashed var(--_jse-border);
  }

  .jse-btn-secondary:hover {
    background-color: var(--_jse-bg-secondary);
    border-color: var(--_jse-text-tertiary);
    color: var(--_jse-text-primary);
  }

  .jse-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    color: var(--_jse-text-tertiary);
    background: transparent;
    border: none;
    border-radius: var(--_jse-radius);
    cursor: pointer;
    transition: color 0.2s;
  }

  .jse-btn-icon:hover {
    color: var(--_jse-text-primary);
    background-color: var(--_jse-bg-secondary);
  }

  .jse-btn-delete:hover {
    color: var(--_jse-danger);
    background-color: var(--_jse-danger-bg);
  }

  /* Node Structure (Schema Editor) */
  .jse-node-container {
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 2px solid var(--_jse-border);
    position: relative;
  }

  .jse-node-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    padding: 0.5rem 0;
  }

  .jse-node-toggle {
    position: absolute;
    left: -1rem;
    width: 1rem;
    height: 1rem;
    transform: translateX(-50%);
    background-color: var(--_jse-bg);
    border: 1px solid var(--_jse-border);
    border-radius: 50%;
    color: var(--_jse-text-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
  }

  .jse-node-toggle:hover {
    color: var(--_jse-primary);
    border-color: var(--_jse-primary);
  }

  .jse-type-select {
    background-color: var(--_jse-bg-secondary);
    border: 1px solid transparent;
    border-radius: var(--_jse-radius);
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    color: var(--_jse-text-primary);
    cursor: pointer;
  }

  .jse-type-select:hover {
    background-color: var(--_jse-bg-tertiary);
  }

  .jse-type-select:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--_jse-primary);
  }

  .jse-title-input {
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--_jse-radius);
    padding: 0.375rem 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--_jse-text-primary);
    width: 12rem;
    transition: border-color 0.2s;
  }

  .jse-title-input:hover, .jse-title-input:focus {
    border-color: var(--_jse-border);
    background-color: var(--_jse-bg);
  }

  .jse-title-input:focus {
    border-color: var(--_jse-border-focus);
    outline: none;
  }

  .jse-description-container {
    flex: 1;
    min-width: 200px;
  }

  .jse-description-collapsed, .jse-description-expanded {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
  }

  .jse-description-input {
    flex: 1;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--_jse-radius);
    padding: 0.375rem 0.5rem;
    font-size: 0.875rem;
    color: var(--_jse-text-secondary);
    transition: all 0.2s;
  }

  .jse-description-input:hover, .jse-description-input:focus {
    border-color: var(--_jse-border);
    color: var(--_jse-text-primary);
  }

  .jse-description-input:focus {
    border-color: var(--_jse-border-focus);
    outline: none;
  }

  .jse-description-textarea {
    flex: 1;
    width: 100%;
    min-height: 4rem;
    background-color: var(--_jse-bg);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 0.5rem;
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--_jse-text-primary);
    resize: vertical;
  }

  .jse-description-textarea:focus {
    outline: none;
    border-color: var(--_jse-border-focus);
  }

  .jse-constraints-container, .jse-extensions-container {
    background-color: var(--_jse-bg-secondary);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 1rem;
    margin-bottom: 1rem;
  }

  .jse-extensions-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px dashed var(--_jse-border);
  }

  .jse-extensions-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .jse-extension-item {
    background-color: var(--_jse-bg);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 0.25rem 0.5rem;
  }

  .jse-extension-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .jse-extension-key-input {
    background: transparent;
    border: none;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--_jse-syntax-key);
    width: 150px;
    border-radius: 2px;
  }

  .jse-extension-value-input {
    flex: 1;
    background: transparent;
    border: none;
    font-size: 0.875rem;
    color: var(--_jse-text-primary);
    border-radius: 2px;
  }

  .jse-extension-key-input:hover, .jse-extension-value-input:hover {
    background-color: var(--_jse-bg-secondary);
  }

  .jse-extension-key-input:focus, .jse-extension-value-input:focus {
    outline: none;
    background-color: var(--_jse-bg-secondary);
    box-shadow: 0 0 0 1px var(--_jse-primary);
  }

  .jse-no-data {
    font-size: 0.875rem;
    color: var(--_jse-text-tertiary);
    font-style: italic;
    text-align: center;
    padding: 0.5rem;
  }

  .jse-btn-toggle-extensions.jse-active {
    color: var(--_jse-primary);
    background-color: var(--_jse-bg-secondary);
  }

  .jse-btn-toggle-extensions.jse-has-data {
    color: var(--_jse-primary);
  }

  .jse-constraints-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
  }

  .jse-constraint-field {
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
  }

  .jse-constraint-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--_jse-text-tertiary);
  }

  .jse-constraint-input {
    background-color: var(--_jse-bg);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 0.375rem 0.5rem;
    font-size: 0.875rem;
    color: var(--_jse-text-primary);
    width: 100%;
  }

  .jse-constraint-input:focus {
    outline: none;
    border-color: var(--_jse-border-focus);
  }

  .jse-input-error {
    border-color: var(--_jse-danger);
  }

  .jse-error-message {
    font-size: 0.75rem;
    color: var(--_jse-danger);
  }

  .jse-btn-toggle-constraints.jse-active, .jse-btn-toggle-logic.jse-active {
    color: var(--_jse-primary);
    background-color: var(--_jse-bg-secondary);
  }

  .jse-btn-toggle-constraints.jse-has-data, .jse-btn-toggle-logic.jse-has-data {
    color: var(--_jse-primary);
  }

  .jse-btn-icon.jse-has-error {
    color: var(--_jse-danger) !important;
  }

  .jse-node-summary {
    font-size: 0.75rem;
    color: var(--_jse-text-tertiary);
    background-color: var(--_jse-bg-secondary);
    padding: 0.125rem 0.375rem;
    border-radius: 4px;
    margin-left: 0.5rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  }

  .jse-enum-container {
    grid-column: 1 / -1;
    padding-top: 1rem;
    margin-top: 0.5rem;
    border-top: 1px dashed var(--_jse-border);
  }

  .jse-enum-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    padding-bottom: 0.25rem;
  }

  .jse-enum-error {
    display: inline-block;
    margin-left: 0.5rem;
  }

  .jse-enum-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
  }

  .jse-enum-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background-color: var(--_jse-bg);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 0.25rem 0.5rem;
  }

  .jse-enum-input {
    border: none;
    background: transparent;
    color: var(--_jse-text-primary);
    font-size: 0.875rem;
    width: auto;
    min-width: 3rem;
  }

  .jse-enum-input:focus {
    outline: none;
  }

  .jse-properties-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .jse-object-controls {
    padding: 0.5rem;
    background-color: var(--_jse-bg-secondary);
    border-radius: var(--_jse-radius);
    margin-bottom: 0.5rem;
  }

  .jse-strict-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--_jse-text-secondary);
    cursor: pointer;
  }

  .jse-property-item {
    background-color: var(--_jse-bg);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 0.75rem;
    position: relative;
  }

  .jse-property-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .jse-property-content {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .jse-property-key-input {
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--_jse-radius);
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--_jse-syntax-key);
    transition: all 0.2s;
  }

  .jse-property-key-input:hover {
    background-color: var(--_jse-bg-secondary);
  }

  .jse-property-key-input:focus {
    outline: none;
    background-color: var(--_jse-bg);
    border-color: var(--_jse-border-focus);
  }

  .jse-required-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--_jse-text-tertiary);
    cursor: pointer;
    text-transform: uppercase;
  }

  .jse-required-checkbox-label:hover {
    color: var(--_jse-text-primary);
  }

  .jse-array-items-container, .jse-logic-container {
    background-color: var(--_jse-bg-secondary);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 1rem;
    margin-top: 1rem;
  }

  .jse-logic-header, .jse-array-items-header {
    margin-bottom: 1rem;
  }

  .jse-logic-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .jse-logic-branch {
    background-color: var(--_jse-bg);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 1rem;
  }

  .jse-logic-branch-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--_jse-border);
    margin-bottom: 0.5rem;
  }

  .jse-logic-branch-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--_jse-text-tertiary);
    text-transform: uppercase;
  }

  /* Preview Panel */
  .jse-preview-panel {
    background-color: var(--_jse-bg-secondary);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    overflow: hidden;
  }

  .jse-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: var(--_jse-bg-tertiary);
    border-bottom: 1px solid var(--_jse-border);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--_jse-text-primary);
  }

  .jse-preview-content {
    padding: 1rem;
    overflow: auto;
    max-height: 80vh;
  }

  .jse-viewer-container {
    padding: 1rem;
    overflow: auto;
    background-color: var(--_jse-bg-secondary);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
  }

  .jse-code-block {
    margin: 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.875rem;
    color: var(--_jse-text-primary);
    white-space: pre-wrap;
  }

  .jse-btn-copy {
    background-color: var(--_jse-bg);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--_jse-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
  }

  .jse-btn-copy:hover {
    background-color: var(--_jse-bg-secondary);
    color: var(--_jse-text-primary);
  }

  .jse-btn-copy.jse-copied {
    background-color: var(--_jse-success);
    border-color: var(--_jse-success);
    color: #ffffff;
  }

  /* Utilities */
  .jse-icon {
    width: 1.25rem;
    height: 1.25rem;
  }

  .jse-icon-sm {
    width: 1rem;
    height: 1rem;
  }

  .jse-icon-xs {
    width: 0.875rem;
    height: 0.875rem;
  }

  .jse-icon-circle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background-color: var(--_jse-bg-tertiary);
    color: var(--_jse-text-secondary);
  }

  .jse-icon-circle-logic {
    background-color: var(--_jse-bg-tertiary);
    color: var(--_jse-text-secondary);
  }

  .jse-add-property-container {
    margin-top: 0.5rem;
    display: flex;
    justify-content: center;
  }

  /* Syntax Highlighting */
  .jse-key {
    color: var(--_jse-syntax-key);
  }
  .jse-string {
    color: var(--_jse-syntax-string);
  }
  .jse-number {
    color: var(--_jse-syntax-number);
  }
  .jse-boolean {
    color: var(--_jse-syntax-boolean);
  }
  .jse-null {
    color: var(--_jse-syntax-null);
    font-style: italic;
  }
  .jse-punctuation {
    color: var(--_jse-syntax-punctuation);
  }
  .jse-indent-guide {
    display: inline-block;
    border-left: 1px solid var(--_jse-indent-guide);
    margin-left: -1px;
  }

  /* Input Syntax Highlighting */
  .jse-input-string {
    color: var(--_jse-syntax-string);
  }
  .jse-input-number {
    color: var(--_jse-syntax-number);
  }
  .jse-input-boolean {
    color: var(--_jse-syntax-boolean);
  }

  /* Modal */
  .jse-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    backdrop-filter: blur(2px);
  }

  .jse-modal {
    background-color: var(--_jse-bg);
    border-radius: var(--_jse-radius);
    box-shadow: var(--_jse-shadow);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: jse-modal-appear 0.2s ease-out;
  }

  @keyframes jse-modal-appear {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
  }

  .jse-modal-header {
    padding: 1rem;
    border-bottom: 1px solid var(--_jse-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--_jse-bg-secondary);
  }

  .jse-modal-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--_jse-text-primary);
  }

  .jse-modal-body {
    padding: 1rem;
    overflow-y: auto;
    flex: 1;
  }

  .jse-modal-textarea {
    width: 100%;
    height: 300px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.875rem;
    padding: 0.75rem;
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    background-color: var(--_jse-bg);
    color: var(--_jse-text-primary);
    resize: none;
  }

  .jse-modal-textarea:focus {
    outline: none;
    border-color: var(--_jse-border-focus);
  }

  .jse-modal-footer {
    padding: 1rem;
    border-top: 1px solid var(--_jse-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    background-color: var(--_jse-bg-secondary);
  }

  .jse-modal-error {
    margin-bottom: 1rem;
    padding: 0.75rem;
    background-color: var(--_jse-danger-bg);
    border: 1px solid var(--_jse-danger-border);
    border-radius: var(--_jse-radius);
    color: var(--_jse-danger);
    font-size: 0.875rem;
  }

  .jse-content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .jse-editor-pane, .jse-preview-panel {
    flex: 1;
  }

  .jse-test-lab {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
  }

  .jse-test-input-section, .jse-test-results {
    background-color: var(--_jse-bg-secondary);
    border: 1px solid var(--_jse-border);
    border-radius: var(--_jse-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }

  .jse-test-input-section {
    flex: 2; /* Give more space to input */
    min-height: 350px;
  }

  .jse-test-results {
    flex: 1;
    min-height: 200px;
  }

  .jse-test-textarea {
    width: 100%;
    flex: 1;
    border: none;
    padding: 1rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.875rem;
    color: var(--_jse-text-primary);
    background-color: var(--_jse-bg);
    resize: none;
  }

  .jse-test-textarea:focus {
    outline: none;
    background-color: var(--_jse-bg);
  }

  .jse-test-output {
    padding: 1rem;
    background-color: var(--_jse-bg);
    flex: 1;
    overflow-y: auto;
  }

  .jse-test-success-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 1rem;
    color: var(--_jse-success);
    font-weight: 600;
  }

  .jse-icon-lg {
    width: 3rem;
    height: 3rem;
  }

  .jse-error-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .jse-error-item {
    padding: 0.75rem;
    background-color: var(--_jse-danger-bg);
    border: 1px solid var(--_jse-danger-border);
    border-radius: var(--_jse-radius);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .jse-error-path {
    font-family: monospace;
    font-weight: 700;
    color: var(--_jse-danger);
    font-size: 0.875rem;
  }

  .jse-error-desc {
    color: var(--_jse-danger);
    font-size: 0.875rem;
  }

  .jse-badge-success {
    background-color: var(--_jse-success-bg);
    color: var(--_jse-success);
    border-color: var(--_jse-success-bg);
  }

  .jse-badge-error {
    background-color: var(--_jse-danger-bg);
    color: var(--_jse-danger);
    border-color: var(--_jse-danger-border);
  }

  /* 
   * NEW TREE VIEW STYLES 
   * Adapted to reuse existing variables where possible
   */
   
  .jse-editor-pane {
    font-family: Consolas, "Courier New", monospace;
    font-size: 13px;
    line-height: var(--_jse-tree-row-height);
    padding: 0.5rem 0;
  }

  .jse-tree-node {
    display: flex;
    flex-direction: column;
  }

  .jse-tree-row {
    display: flex;
    align-items: center;
    padding-left: 0.5rem;
    height: var(--_jse-tree-row-height);
    white-space: nowrap;
    cursor: default;
    position: relative;
  }

  .jse-tree-row:hover {
    background-color: var(--_jse-bg-secondary);
  }

  .jse-tree-row:hover .jse-tree-actions {
    opacity: 1;
    pointer-events: auto;
  }

  .jse-indent-guide {
    display: inline-block;
    width: var(--_jse-tree-indent);
    height: 100%;
    border-left: 1px solid transparent; 
  }
  
  .jse-tree-row:hover .jse-indent-guide {
      border-left-color: var(--_jse-border);
  }

  .jse-tree-toggle {
    width: 1.25rem;
    height: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--_jse-text-secondary);
    cursor: pointer;
    margin-right: 2px;
    padding: 0;
  }

  .jse-tree-toggle:hover {
    color: var(--_jse-text-primary);
  }

  .jse-tree-toggle.placeholder {
    pointer-events: none;
    opacity: 0;
  }

  .jse-key-input {
    background: transparent;
    border: none;
    color: var(--_jse-syntax-key); /* Reusing syntax variable */
    font-family: inherit;
    font-size: inherit;
    width: auto;
    min-width: 2rem;
    max-width: 150px;
    padding: 0 2px;
    margin: 0 2px;
    border-radius: 2px;
  }

  .jse-key-input:hover {
     background-color: var(--_jse-bg);
     box-shadow: 0 0 0 1px var(--_jse-border);
  }

  .jse-key-input:focus {
    outline: none;
    background-color: var(--_jse-bg);
    color: var(--_jse-text-primary);
    box-shadow: 0 0 0 1px var(--_jse-primary);
  }

  .jse-separator {
    color: var(--_jse-text-primary);
    margin-right: 0.5rem;
  }

  .jse-value-input {
    background: transparent;
    border: none;
    font-family: inherit;
    font-size: inherit;
    padding: 0 2px;
    border-radius: 2px;
    min-width: 4rem;
    max-width: 600px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
  }

  .jse-value-input:hover {
    box-shadow: 0 0 0 1px var(--_jse-border);
  }

  .jse-value-input:focus {
    outline: none;
    background-color: var(--_jse-bg);
    color: var(--_jse-text-primary);
    box-shadow: 0 0 0 1px var(--_jse-primary);
    max-width: none; /* Show full text when focused if possible, or at least don't truncate with ... */
    overflow: visible;
  }

  .jse-multiline-preview {
    max-width: 600px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    vertical-align: bottom;
  }

  /* Reuse syntax variables */
  .jse-val-string { color: var(--_jse-syntax-string); }
  .jse-val-number { color: var(--_jse-syntax-number); }
  .jse-val-boolean { color: var(--_jse-syntax-boolean); }
  .jse-val-null { color: var(--_jse-syntax-null); font-style: italic; }

  .jse-meta {
    margin-left: 0.5rem;
    font-size: 0.75rem;
    color: var(--_jse-text-tertiary);
    user-select: none;
  }

  .jse-tree-actions {
    margin-left: auto;
    padding-right: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    opacity: 0; 
    transition: opacity 0.1s;
    pointer-events: none;
  }

  .jse-action-btn {
    background: transparent;
    border: none;
    color: var(--_jse-text-secondary);
    cursor: pointer;
    padding: 2px;
    border-radius: 3px;
    display: flex;
  }

  .jse-action-btn:hover {
    background-color: var(--_jse-bg-tertiary); /* Adjusted to tertiary for better contrast on hover row */
    color: var(--_jse-text-primary);
  }
  
  .jse-action-btn.delete:hover {
      color: var(--_jse-danger);
  }

  /* Custom override for type select in tree view */
  .jse-tree-row .jse-type-select {
     appearance: none;
     background: transparent;
     border: none;
     color: var(--_jse-text-tertiary);
     font-size: 0.75rem;
     font-family: inherit;
     cursor: pointer;
     padding: 0 4px;
     text-align: right;
  }
  
  .jse-tree-row .jse-type-select:hover {
      color: var(--_jse-text-primary);
      text-decoration: underline;
      background: none;
      box-shadow: none;
  }
  
  .jse-tree-row .jse-type-select:focus {
      outline: none;
      color: var(--_jse-primary);
      box-shadow: none;
  }

  .jse-row-error {
      background-color: rgba(239, 68, 68, 0.1);
  }
  
  .jse-validation-msg {
      font-size: 0.75rem;
      color: var(--_jse-danger);
      margin-left: 1rem;
      display: flex;
      align-items: center;
      gap: 4px;
  }
}