@import url('https://fonts.googleapis.com/css2?family=VT323&display=swap');

:root {
  /* ========================================
     Windows 3.1 Theme
     16-color VGA aesthetic with Program Manager vibes
     Much more primitive than Windows 98
     ======================================== */

  /* Core spacing scale - very tight, old-school */
  --node-editor-space-xs: 1px;
  --node-editor-space-sm: 2px;
  --node-editor-space-md: 4px;
  --node-editor-space-lg: 6px;
  --node-editor-space-xl: 10px;
  --node-editor-space-xxl: 14px;

  /* Layout spacing */
  --node-editor-control-padding: 1px 4px;

  /* Inspector spacing system */
  --node-editor-inspector-space-xs: var(--node-editor-space-xs);
  --node-editor-inspector-space-sm: var(--node-editor-space-sm);
  --node-editor-inspector-space-md: var(--node-editor-space-md);
  --node-editor-inspector-space-lg: var(--node-editor-space-lg);
  --node-editor-inspector-space-xl: var(--node-editor-space-xl);
  --node-editor-inspector-space-xxl: var(--node-editor-space-xxl);
  --node-editor-inspector-content-padding: var(--node-editor-inspector-space-md);
  --node-editor-inspector-header-padding-top: var(--node-editor-inspector-space-sm);
  --node-editor-inspector-header-padding-bottom: var(--node-editor-inspector-space-xs);
  --node-editor-inspector-header-gap: var(--node-editor-inspector-space-sm);
  --node-editor-inspector-section-gap: var(--node-editor-inspector-space-md);
  --node-editor-inspector-field-gap: var(--node-editor-inspector-space-sm);
  --node-editor-inspector-inline-gap: var(--node-editor-inspector-space-sm);
  --node-editor-inspector-empty-padding-vertical: var(--node-editor-inspector-space-xl);
  --node-editor-inspector-empty-padding-horizontal: var(--node-editor-inspector-space-lg);
  --node-editor-inspector-input-padding: 1px 2px;

  /* Inspector typography - chunky bitmap */
  --node-editor-inspector-font-size-title: 1rem;
  --node-editor-inspector-line-height-title: 1.2;
  --node-editor-inspector-font-size-body: 1rem;
  --node-editor-inspector-line-height-body: 1.2;
  --node-editor-inspector-font-size-meta: 0.875rem;
  --node-editor-inspector-line-height-meta: 1.2;
  --node-editor-inspector-font-weight-medium: 400;
  --node-editor-inspector-font-size-heading: 1rem;
  --node-editor-inspector-font-size: var(--node-editor-inspector-font-size-body);
  --node-editor-inspector-line-height: var(--node-editor-inspector-line-height-body);

  /* Font families - VT323 bitmap font for maximum retro */
  --node-editor-theme-default-font-family: "VT323", "Fixedsys", "Terminal", monospace;
  --node-editor-theme-control-font-family: "VT323", "Fixedsys", "Terminal", monospace;
  --node-editor-theme-label-font-family: "VT323", "Fixedsys", "Terminal", monospace;
  --node-editor-system-font: "VT323", "Fixedsys", "Terminal", monospace;
  --node-editor-font-mono: "VT323", "Fixedsys", "Terminal", monospace;
  --node-editor-title-font: 400 1rem/1.2 var(--node-editor-theme-label-font-family);
  --node-editor-subtitle-font: 400 1rem/1.2 var(--node-editor-theme-label-font-family);
  --node-editor-caption-font: 400 0.875rem/1.2 var(--node-editor-theme-default-font-family);
  --node-editor-control-text-font: 400 1rem/1.2 var(--node-editor-theme-control-font-family);
  --node-editor-input-font: 400 1rem/1.2 var(--node-editor-theme-default-font-family);
  --node-editor-font-size-lg: 1.125rem;
  --node-editor-font-size-sm: 0.875rem;
  --node-editor-font-size-xs: 0.75rem;

  /* Canvas grid */
  --node-editor-grid-color: #000080;
  --node-editor-grid-opacity: 0.1;

  /* Shadow system - Simple 1px borders only, no fancy 3D */
  --node-editor-shadow-sm: none;
  --node-editor-shadow-md: none;
  --node-editor-shadow-lg: none;

  /* Transition system - Instant, no animations */
  --node-editor-transition-duration: 0s;

  /* Inspector shadows */
  --node-editor-inspector-shadow: -1px 0 0 #000000;
  --node-editor-inspector-header-shadow: 0 1px 0 #000000;

  /* Tree & List Components - tight */
  --node-editor-tree-item-height: 18px;
  --node-editor-tree-indent: 12px;

  /* Control Buttons - small */
  --node-editor-control-button-size-sm: 16px;
  --node-editor-control-button-size: 20px;

  /* Icons */
  --node-editor-icon-size-sm: 12px;
  --node-editor-icon-selected-brightness: 1;

  /* Text colors - VGA 16 color palette */
  --node-editor-text-color: #000000;
  --node-editor-text-secondary: #000000;
  --node-editor-header-text-color: #ffffff;
  --node-editor-label-color: #000000;
  --node-editor-secondary-label-color: #000000;
  --node-editor-tertiary-label-color: #808080;
  --node-editor-quaternary-label-color: #808080;
  --node-editor-control-text-color: #000000;
  --node-editor-control-text-color-primary: #ffffff;
  --node-editor-control-text-color-secondary: #000000;
  --node-editor-control-hover-text-color-primary: #ffffff;
  --node-editor-input-text-color: #000000;
  --node-editor-selected-control-text-color: #ffffff;
  --node-editor-selected-menu-item-text-color: #ffffff;

  /* Status & accent colors - VGA 16 color palette */
  --node-editor-accent-color: #000080;
  --node-editor-accent-color-hover: #0000ff;
  --node-editor-color-primary: #000080;
  --node-editor-keyboard-focus-indicator-color: #000000;
  --node-editor-success-color: #008000;
  --node-editor-warning-color: #808000;
  --node-editor-caution-color: #800000;
  --node-editor-caution-hover-background: #ff0000;
  --node-editor-system-orange-color: #808000;
  --node-editor-system-red-color: #800000;
  --node-editor-connection-color: #000080;

  /* Surface colors - flat gray, teal desktop */
  --node-editor-surface-primary: #c0c0c0;
  --node-editor-surface-secondary: #c0c0c0;
  --node-editor-surface-tertiary: #c0c0c0;
  --node-editor-selected-content-background-color: #000080;
  --node-editor-selected-control-color: #000080;
  --node-editor-under-page-background-color: #008080;
  --node-editor-window-background-color: #c0c0c0;
  --node-editor-background-surface: #c0c0c0;

  /* Control surfaces - flat with simple border */
  --node-editor-control-background: #c0c0c0;
  --node-editor-control-background-primary: #000080;
  --node-editor-control-background-secondary: #c0c0c0;
  --node-editor-control-hover-background: #c0c0c0;
  --node-editor-control-hover-background-primary: #0000ff;
  --node-editor-hover-background: #000080;
  --node-editor-control-box-shadow-primary: inset -1px -1px 0 #808080, inset 1px 1px 0 #ffffff;
  --node-editor-control-box-shadow-secondary: inset -1px -1px 0 #808080, inset 1px 1px 0 #ffffff;
  --node-editor-disabled-control-text-color: #808080;

  /* Input surfaces */
  --node-editor-input-background: #ffffff;
  --node-editor-input-border: 1px solid #000000;
  --node-editor-input-border-hover: 1px solid #000000;
  --node-editor-input-box-shadow: none;
  --node-editor-input-padding: 1px 2px;

  /* Card & panel styling - simple black border */
  --node-editor-card-border-color: #000000;
  --node-editor-card-border: 1px solid #000000;
  --node-editor-card-border-radius: 0;
  --node-editor-card-box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #ffffff;
  --node-editor-card-hover-box-shadow: inset -1px -1px 0 #808080, inset 1px 1px 0 #ffffff;
  --node-editor-card-elevated-box-shadow: 1px 1px 0 #000000;
  --node-editor-card-focus-box-shadow: 0 0 0 1px #000080;
  --node-editor-card-disabled-background: #c0c0c0;
  --node-editor-card-filled-background: #c0c0c0;
  --node-editor-card-filled-hover-background: #c0c0c0;
  --node-editor-card-hover-border-color: #000000;

  /* Dialogs & overlays */
  --node-editor-dialog-background: #c0c0c0;
  --node-editor-dialog-box-shadow: 1px 1px 0 #000000;
  --node-editor-dialog-level-elevation: 1000;

  /* Scrollbars */
  --node-editor-scroll-bar-thumb-color: #c0c0c0;
  --node-editor-active-scroll-bar-thumb-color: #c0c0c0;

  /* Selected State Colors */
  --node-editor-selected-secondary-color: #ffffff;
  --node-editor-selected-hover-background: #000080;

  /* Tables & list accents */
  --node-editor-table-header-background-color: #000080;
  --node-editor-table-header-background-color-hover: #0000ff;
  --node-editor-table-header-background-color-active: #000080;

  /* Node-specific colors */
  --node-editor-group-node-background: #c0c0c0;
  --node-editor-group-node-border: #000000;
  --node-editor-group-node-active-background: #000080;
  --node-editor-group-node-active-color: #ffffff;
  --node-editor-node-port-input-color: #008000;
  --node-editor-node-port-output-color: #800000;

  /* System fills */
  --node-editor-tertiary-system-background: #c0c0c0;
  --node-editor-tertiary-system-fill-color: #c0c0c0;
  --node-editor-quaternary-system-fill-color: #ffffff;

  /* Border Radii - None */
  --node-editor-border-radius-xxs: 0;
  --node-editor-border-radius-xs: 0;
  --node-editor-radius-xs: 0;
  --node-editor-radius-sm: 0;
  --node-editor-radius-md: 0;
  --node-editor-control-border-radius: 0;
  --node-editor-segment-control-border-radius: 0;

  /* Borders */
  --node-editor-border-width: 1px;
  --node-editor-border-color: #000000;
  --node-editor-divider-color: #808080;
  --node-editor-separator-color: #808080;

  /* Segment controls */
  --node-editor-segment-backdrop-filter: none;
  --node-editor-segment-control-background: #c0c0c0;
  --node-editor-segment-control-background-color: #c0c0c0;
  --node-editor-segment-control-text-color: #000000;
  --node-editor-segment-control-active-background-color: #000080;
  --node-editor-segment-control-active-text-color: #ffffff;
  --node-editor-segment-control-segment-padding: 2px 8px;

  /* Tab Navigation */
  --node-editor-tab-nav-gap: 0;
  --node-editor-tab-nav-padding: 0;
  --node-editor-tab-nav-border-radius: 0;
  --node-editor-tab-nav-background: #c0c0c0;
  --node-editor-tab-nav-border: 1px solid #000000;
  --node-editor-tab-nav-box-shadow: none;
  --node-editor-tab-button-flex: 1;
  --node-editor-tab-button-min-height: 20px;
  --node-editor-tab-button-padding: 2px 8px;
  --node-editor-tab-button-border-radius: 0;
  --node-editor-tab-button-background: #c0c0c0;
  --node-editor-tab-button-border: 1px solid #000000;
  --node-editor-tab-button-color: #000000;
  --node-editor-tab-button-font-size: var(--node-editor-inspector-font-size-meta);
  --node-editor-tab-button-font-weight: 400;
  --node-editor-tab-button-text-transform: none;
  --node-editor-tab-button-active-background: #000080;
  --node-editor-tab-button-active-color: #ffffff;
  --node-editor-tab-button-active-font-weight: 400;
  --node-editor-tab-button-active-box-shadow: none;
  --node-editor-tab-button-hover-background: #000080;
  --node-editor-tab-button-hover-color: #ffffff;

  /* Connection styling */
  --node-editor-connection-base-stroke-width: 1;
  --node-editor-connection-active-stroke-width: 2;
  --node-editor-connection-flow-stripe-stroke-width: 1;
  --node-editor-connection-flow-stripe-active-stroke-width: 2;
  --node-editor-connection-direction-stroke-width: 1;
  --node-editor-connection-hover-shadow: none;
  --node-editor-connection-selected-shadow: none;
  --node-editor-connection-hover-opacity: 1;
  --node-editor-connection-dragging-opacity: 1;
  --node-editor-connection-stripe-dash-array: 4 4;
  --node-editor-connection-stripe-dash-offset-bg: 0;
  --node-editor-connection-stripe-opacity-accent: 1;
  --node-editor-connection-stripe-opacity-background: 1;
  --node-editor-connection-flow-animation-duration: 0s;
  --node-editor-connection-flow-animation-distance: 0;
  --node-editor-connection-base-transition: none;
  --node-editor-connection-arrow-transition: none;

  /* Connection drag styling */
  --node-editor-connection-drag-stroke-width-connecting: 1;
  --node-editor-connection-drag-stroke-width-disconnecting: 1;
  --node-editor-connection-drag-dash-array-connecting: 2 2;
  --node-editor-connection-drag-dash-array-disconnecting: 2 2;
  --node-editor-connection-drag-animation-duration: 0s;
  --node-editor-connection-drag-animation-distance: 0;

  /* Inspector icon button */
  --node-editor-inspector-icon-button-size: 18px;
  --node-editor-inspector-icon-button-size-sm: 16px;
  --node-editor-inspector-icon-button-icon-size: 12px;
  --node-editor-inspector-icon-button-icon-size-sm: 10px;
  --node-editor-inspector-icon-button-background: #c0c0c0;
  --node-editor-inspector-icon-button-background-hover: #000080;
  --node-editor-inspector-icon-button-background-active: #000080;
  --node-editor-inspector-icon-button-color: #000000;
  --node-editor-inspector-icon-button-color-hover: #ffffff;
  --node-editor-inspector-icon-button-color-active: #ffffff;
  --node-editor-inspector-icon-button-color-disabled: #808080;

  /* Inspector input label */
  --node-editor-inspector-input-label-color: #000000;
  --node-editor-inspector-input-label-font-size: 0.875rem;
  --node-editor-inspector-input-label-font-weight: 400;
  --node-editor-inspector-input-label-width: auto;
  --node-editor-inspector-input-label-min-width: 32px;

  /* Inspector segment control */
  --node-editor-inspector-segment-background: #c0c0c0;
  --node-editor-inspector-segment-border-radius: 0;
  --node-editor-inspector-segment-padding: 0;
  --node-editor-inspector-segment-gap: 0;
  --node-editor-inspector-segment-button-background: #c0c0c0;
  --node-editor-inspector-segment-button-background-hover: #000080;
  --node-editor-inspector-segment-button-background-active: #000080;
  --node-editor-inspector-segment-button-color: #000000;
  --node-editor-inspector-segment-button-color-hover: #ffffff;
  --node-editor-inspector-segment-button-color-active: #ffffff;
  --node-editor-inspector-segment-button-shadow-active: none;
}