/* ═══════════════════════════════════════
   MAIN EDITOR AREA
   ═══════════════════════════════════════ */
.editor-area {
  grid-area: editor;
  display: flex;
  flex-direction: column;
  background: var(--bg-main);
  overflow: hidden;
  position: relative;
  height: 100%; /* Hardened to prevent collapsing inside CSS Grid */
  min-height: 0; /* Hardened to prevent grid item content collapse */
}

/* ─── TAB BAR ─── */
.tab-bar {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  height: 32px;
  background: color-mix(in srgb, var(--bg-sidebar) 85%, transparent) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border) !important;
  border-bottom: 1px solid var(--border) !important;
  border-radius: 0 0 8px 0;
  z-index: 101 !important;
  padding: 3px 6px 3px 3px;
  gap: 3px;
  align-items: center;
  box-shadow: var(--shadow-md) !important;
  pointer-events: auto;
}

.tab-btn {
  position: relative;
  background: transparent !important;
  border: 1px solid transparent !important;
  color: var(--text-muted) !important;
  padding: 0 16px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn.active {
  color: var(--text-bright) !important;
  background: var(--bg-main) !important;
  border-color: var(--border) !important;
  font-weight: 600;
  box-shadow: var(--shadow-sm) !important;
}

.tab-btn:hover:not(.active) {
  color: var(--text-bright) !important;
  background: var(--bg-hover) !important;
}
}

/* ─── TAB CONTENT ─── */
.tab-content {
  flex: 1;
  position: relative;
  overflow: hidden;
  height: 100%; /* Hardened to prevent collapsing inside column flexbox */
  min-height: 0; /* Hardened to prevent flex item height collapse */
}

.tab-pane {
  position: absolute;
  inset: 0;
  visibility: hidden;
  opacity: 0;
}
.tab-pane.active {
  visibility: visible;
  opacity: 1;
}

/* ─── BLOCKLY ─── */
#blocks-tab {
  display: flex;
}

/* Override Blockly classes for custom dark IDE look */
.blocklyFlyoutBackground {
  fill: var(--bg-sidebar) !important;
  fill-opacity: 0.95 !important;
  stroke: var(--border) !important;
  stroke-width: 1px !important;
}

.blocklyFlyout {
  backdrop-filter: blur(1.5px) !important;
  -webkit-backdrop-filter: blur(1.5px) !important;
}

/* Premium typography for flyout label headers (e.g. Buttons, Advanced I/O) */
.blocklyFlyoutLabelText,
.blocklyFlyoutLabel text,
.blocklyFlyoutLabel .blocklyText {
  font-family: var(--font-ui) !important;
  font-size: 11px !important;
  font-weight: 700 !important;
  text-transform: uppercase !important;
  letter-spacing: 1.5px !important;
  fill: var(--accent) !important;
  transform: translateX(16px) !important;
}

.blocklyToolboxDiv, .blocklyToolbox {
  background-color: var(--bg-sidebar) !important;
  border-right: 1px solid var(--border) !important;
  width: 186px !important;
  padding: 42px 0 8px 0 !important; /* Top padding to prevent floating tabs from covering category buttons */
  overflow: hidden !important;
  display: flex !important;
  flex-direction: column !important;
  height: 100% !important;
  box-sizing: border-box !important;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}
.blocklyTreeRow, .blocklyToolboxCategory {
  height: auto !important;
  line-height: normal !important;
  margin: 3px 8px !important;
  padding: 6px 8px !important;
  border-radius: 8px !important;
  border: none !important;
  background-color: transparent !important;
  transition: background-color 0.18s ease !important;
  cursor: pointer !important;
  box-sizing: border-box !important;
}
.blocklyTreeRow:hover, .blocklyToolboxCategory:hover {
  background-color: var(--bg-hover) !important;
}
.blocklyTreeSelected, .blocklyToolboxCategory.blocklyToolboxSelected {
  background-color: color-mix(in srgb, var(--accent) 12%, transparent) !important;
}
.blocklyTreeLabel, .blocklyToolboxCategoryLabel {
  font-family: var(--font-ui) !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  color: var(--text-primary) !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  flex: 1 !important;
  min-width: 0 !important;
}
.blocklyTreeSelected .blocklyTreeLabel, .blocklyToolboxSelected .blocklyToolboxCategoryLabel {
  color: var(--text-bright) !important;
  font-weight: 700 !important;
}
.blocklyTreeIcon, .blocklyToolboxCategoryIcon {
  display: none !important; /* hide default blockly tree folder icons */
}
.blocklyTreeSeparator, .blocklyToolboxSeparator {
  height: 1px !important;
  background-color: var(--border) !important;
  margin: 12px 16px !important;
  border: none !important;
}

.blocklyTreeRowContentContainer {
  display: flex !important;
  align-items: center !important;
  width: 100% !important;
}

/* Custom categories row buttons for bottom items */
.toolbox-custom-code-row {
  background-color: var(--bg-hover-sidebar) !important;
  border: 1px solid var(--border) !important;
  border-radius: 8px !important;
  margin: 6px 10px !important;
  padding: 8px 12px !important;
}
.toolbox-custom-code-row:hover {
  background-color: var(--bg-hover) !important;
}
.toolbox-custom-code-row.blocklyTreeSelected {
  background-color: color-mix(in srgb, var(--accent) 12%, transparent) !important;
  border-color: var(--accent) !important;
}

.toolbox-experimental-row {
  background-color: var(--bg-hover-sidebar) !important;
  border-radius: 8px !important;
  margin: 6px 10px !important;
  padding: 8px 12px !important;
  border: 1px solid var(--border) !important;
}
.toolbox-experimental-row:hover {
  background-color: var(--bg-hover) !important;
}
.toolbox-experimental-row.blocklyTreeSelected {
  background-color: color-mix(in srgb, var(--accent) 12%, transparent) !important;
  border-color: var(--accent) !important;
}

.toolbox-advanced-row {
  background-color: var(--bg-hover-sidebar) !important;
  border-radius: 8px !important;
  margin: 6px 10px !important;
  padding: 8px 12px !important;
  border: 1px solid var(--border) !important;
}
.toolbox-advanced-row:hover {
  background-color: var(--bg-hover) !important;
}
.toolbox-advanced-row.blocklyTreeSelected {
  background-color: color-mix(in srgb, var(--accent) 12%, transparent) !important;
  border-color: var(--accent) !important;
}

#blockly-container {
  flex: 1;
  height: 100%;
  width: 100%;
  background-color: var(--bg-main) !important;
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px) !important;
  background-size: 24px 24px !important;
}
.blocklyMainBackground {
  stroke: none !important;
  fill: transparent !important;
}
.blocklySvg {
  background: transparent !important;
}

/* Ensure all SVG labels, dropdown values, and variables inside Blockly blocks and flyouts are white for maximum readability against vibrant block backgrounds */
.blocklyText,
.blocklyDropdownText,
.blocklyFieldDropdown text,
.blocklyFieldVariable text {
  fill: #ffffff !important;
}

/* ─── CODEMIRROR ─── */
#code-tab {
  padding-top: 40px; /* Leave space for the floating tabs on parent container */
  box-sizing: border-box;
}
#code-tab .CodeMirror {
  height: 100%;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  background: var(--bg-main);
  color: #d4d4d4;
}
.CodeMirror-gutters {
  background: var(--bg-sidebar) !important;
  border-right: 1px solid var(--border) !important;
}
.CodeMirror-linenumber {
  color: var(--text-muted) !important;
  font-family: var(--font-mono);
}
.CodeMirror-cursor {
  border-left-color: #DAE3E3 !important; /* Soft Gray active cursor caret */
}
.CodeMirror-selected, .CodeMirror-focused .CodeMirror-selected {
  background: rgba(0, 129, 132, 0.5) !important; /* Semi-transparent Teal selection highlight */
}
/* Arduino IDE 2.x Syntax highlighting for CodeMirror's clike mode (Dark Theme Arduino Specs) */
.cm-keyword { color: #9ebb3e !important; }   /* Data Structures & Keywords (Readable Muted Olive Green) */
.cm-type { color: #9ebb3e !important; }      /* Data Structures & Keywords (Readable Muted Olive Green) */
.cm-builtin { color: #D35400 !important; }   /* Functions & Methods (Pumpkin Orange) */
.cm-def { color: #D35400 !important; }       /* Functions & Methods (Pumpkin Orange) */
.cm-variable { color: #DAE3E3 !important; }   /* Standard Foreground Text */
.cm-variable-2 { color: #DAE3E3 !important; }
.cm-variable-3 { color: #DAE3E3 !important; }
.cm-comment { color: #95A5A6 !important; font-style: italic; } /* Comments (Asbestos Gray) */
.cm-string { color: #00979C !important; }     /* Variables, Constants & System Literals (Teal Blue) */
.cm-number { color: #FFCD22 !important; }     /* Numbers (Bright Amber Gold) */
.cm-operator { color: #DAE3E3 !important; }   /* Standard Foreground Text */

/* Premium outline for all block dropdown fields to match reference */
.blocklyFieldRect {
  stroke: rgba(255, 255, 255, 0.9) !important;
  stroke-width: 1px !important;
  fill-opacity: 0.12 !important;
  fill: #000000 !important;
}

/* Fix text/number input fields (like characters and strings) to have a white background with dark text */
.blocklyFieldTextInput .blocklyFieldRect,
.blocklyTextInputField .blocklyFieldRect,
.blocklyInputField .blocklyFieldRect,
.blocklyFieldNumber .blocklyFieldRect,
g.blocklyEditableText:not(.blocklyFieldDropdown):not(.blocklyFieldVariable) rect.blocklyFieldRect {
  fill: #ffffff !important;
  fill-opacity: 1 !important;
  stroke: rgba(0, 0, 0, 0.2) !important;
  stroke-width: 1px !important;
}

.blocklyFieldTextInput text,
.blocklyFieldTextInput .blocklyText,
.blocklyTextInputField text,
.blocklyTextInputField .blocklyText,
.blocklyInputField text,
.blocklyInputField .blocklyText,
.blocklyFieldNumber text,
.blocklyFieldNumber .blocklyText,
g.blocklyEditableText:not(.blocklyFieldDropdown):not(.blocklyFieldVariable) text,
g.blocklyEditableText:not(.blocklyFieldDropdown):not(.blocklyFieldVariable) .blocklyText {
  fill: #333333 !important;
}

/* Ensure the HTML input matches when actively editing */
.blocklyHtmlInput {
  background-color: #ffffff !important;
  color: #333333 !important;
  font-family: inherit !important;
}

/* Styling specifically for multiline text areas in Blockly */
g.blocklyEditableText rect {
  fill: #ffffff !important;
  fill-opacity: 1 !important;
  stroke: rgba(0, 0, 0, 0.2) !important;
  stroke-width: 1px !important;
}
g.blocklyEditableText text {
  fill: #333333 !important;
  font-family: monospace !important;
}
.blocklyHtmlTextAreaInput {
  background-color: #ffffff !important;
  color: #333333 !important;
  font-family: monospace !important;
  font-size: 14px !important;
  padding: 8px !important;
}

/* ─── FLOATING CODE PANEL TOGGLE TAB ─── */
.floating-code-tab {
  position: absolute;
  right: 0;
  top: 25%;
  transform: translateY(-50%);
  width: 34px;
  height: 44px;
  background-color: #f39c12; /* Original yellow/orange shade */
  border: none;
  border-radius: 22px 0 0 22px; /* Smooth semi-circle/half-capsule shape on left edge */
  color: #ffffff !important;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1001 !important; /* Float clearly over Blockly canvas but below menu overlays */
  box-shadow: var(--shadow-sm);
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease, right 0.3s cubic-bezier(0.4, 0, 0.2, 1), z-index 0.3s ease;
  padding: 0;
  padding-left: 4px; /* Offset visually to center the SVG in the rounded capsule shape */
  outline: none;
}

.floating-code-tab:hover {
  background-color: #e67e22; /* Original hover yellow/orange */
  transform: translateY(-50%) scale(1.05);
  box-shadow: var(--shadow-md);
}

.floating-code-tab:active {
  transform: translateY(-50%) scale(0.95);
}

.floating-code-tab svg {
  display: block;
  stroke: #ffffff;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

/* ─── SCROLLABLE SIDEBAR CATEGORY GROUP ─── */
.blocklyToolboxCategoryGroup {
  flex: 1 !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  min-height: 0 !important;
  display: block !important;
}

/* Custom premium scrollbar for sidebar category group */
.blocklyToolboxCategoryGroup::-webkit-scrollbar {
  width: 4px !important;
}
.blocklyToolboxCategoryGroup::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15) !important;
  border-radius: 2px !important;
}
.blocklyToolboxCategoryGroup::-webkit-scrollbar-track {
  background: transparent !important;
}

/* Custom variables for Blockly scrollbars */
:root {
  --flyout-scrollbar-thumb: rgba(255, 255, 255, 0.4);
}
body:not(.theme-dark) {
  --flyout-scrollbar-thumb: rgba(0, 0, 0, 0.3);
}

/* Custom rounded style and theme colors for all Blockly scrollbar handles */
.blocklyScrollbarHandle {
  rx: 9px !important;
  ry: 9px !important;
  border-radius: 9px !important;
  fill: var(--flyout-scrollbar-thumb) !important;
}

/* ─── RESPONSIVE COLLAPSED SIDEBAR ─── */
@media (max-width: 768px) {
  /* Shift the flyout contents (blocks, subheadings) down by 42px to start below the tab bar,
     while leaving the background to start at the top (behind the tab bar) */
  .blocklyFlyout .blocklyWorkspace {
    transform: translateY(42px) !important;
  }
  /* Ensure the background rect spans the full height from the top */
  .blocklyFlyoutBackground {
    transform: none !important;
    height: 100% !important;
  }
  
  .blocklyTreeLabel, .blocklyToolboxCategoryLabel {
    display: block !important; /* Show labels below icons */
    text-align: center !important;
    width: 100% !important;
    overflow: visible !important;
    white-space: normal !important; /* Allow wrapping under the icon */
    word-wrap: normal !important; /* Prevent mid-word breaking */
    word-break: keep-all !important; /* Prevent breaking standard English words */
    line-height: 1.2 !important;
    color: #cbbde2 !important;
    font-weight: 600 !important;
  }
  
  .blocklyTreeSelected .blocklyTreeLabel, 
  .blocklyToolboxSelected .blocklyToolboxCategoryLabel {
    color: #ffffff !important;
    font-weight: 700 !important;
  }
  
  .blocklyTreeRowContentContainer {
    flex-direction: column !important; /* Stack icon badge above label text */
    justify-content: center !important;
    align-items: center !important;
    display: flex !important;
    width: 100% !important;
  }
  
  .toolbox-category-icon-badge {
    margin-right: 0 !important; /* Center the icon badge */
  }
  
  #more-blocks-btn {
    font-size: 0 !important;
    text-align: center !important;
    padding: 12px 0 !important;
  }
  
  #more-blocks-btn::before {
    content: "➕" !important;
    font-size: 14px !important;
    display: inline-block !important;
  }

  /* Hide main workspace zoom controls, trash basket, and scrollbars on mobile */
  .blocklyZoom,
  .blocklyTrash,
  .blocklyMainWorkspaceScrollbar,
  .blockly-ws-scrollbar {
    display: none !important;
  }

  /* Make the flyout scrollbar handle thicker and more touch-friendly on mobile */
  .blocklyFlyoutScrollbar .blocklyScrollbarHandle,
  .blocklyFlyout .blocklyScrollbarHandle {
    rx: 9px !important;
    ry: 9px !important;
    border-radius: 9px !important;
    fill: var(--flyout-scrollbar-thumb) !important;
  }

  .blockly-flyout-scrollbar-overlay {
    position: fixed;
    top: 48px;
    bottom: 8px;
    right: 6px;
    width: 24px;
    z-index: 1200;
    display: none;
    touch-action: none;
    pointer-events: auto;
  }

  .blockly-flyout-scrollbar-overlay.is-visible {
    display: block;
  }

  .blockly-flyout-scrollbar-track {
    position: absolute;
    inset: 0;
    background: transparent;
  }

  .blockly-flyout-scrollbar-thumb {
    position: absolute;
    left: 3px;
    right: 3px;
    min-height: 34px;
    border-radius: 9px;
    background: var(--flyout-scrollbar-thumb) !important;
    box-shadow: none !important;
  }

  /* --- Dynamic Sidebar size variants for mobile --- */
  
  /* Medium size layout (default on screens > 500px, or explicitly selected) */
  body:not(.sidebar-small) .blocklyToolboxDiv,
  body:not(.sidebar-small) .blocklyToolbox,
  body.sidebar-medium .blocklyToolboxDiv,
  body.sidebar-medium .blocklyToolbox {
    width: 84px !important;
    padding: 42px 0 8px 0 !important;
  }
  body:not(.sidebar-small) .blocklyFlyout,
  body.sidebar-medium .blocklyFlyout {
    transform: translateX(84px) !important;
    max-width: calc(100vw - 84px) !important;
  }
  body:not(.sidebar-small) .blocklyTreeRow,
  body:not(.sidebar-small) .blocklyToolboxCategory,
  body.sidebar-medium .blocklyTreeRow,
  body.sidebar-medium .blocklyToolboxCategory {
    margin: 4px 2px !important;
    padding: 8px 1px !important;
  }
  body:not(.sidebar-small) .blocklyTreeLabel,
  body:not(.sidebar-small) .blocklyToolboxCategoryLabel,
  body.sidebar-medium .blocklyTreeLabel,
  body.sidebar-medium .blocklyToolboxCategoryLabel {
    font-size: 8.5px !important;
    margin-top: 5px !important;
    line-height: 1.2 !important;
  }
  body:not(.sidebar-small) .toolbox-category-icon-badge,
  body.sidebar-medium .toolbox-category-icon-badge {
    margin-bottom: 2px !important;
  }
  body:not(.sidebar-small) .toolbox-custom-code-row,
  body:not(.sidebar-small) .toolbox-experimental-row,
  body:not(.sidebar-small) .toolbox-advanced-row,
  body.sidebar-medium .toolbox-custom-code-row,
  body.sidebar-medium .toolbox-experimental-row,
  body.sidebar-medium .toolbox-advanced-row {
    margin: 4px 3px !important;
    padding: 8px 2px !important;
    border: none !important;
  }

  /* Small size layout (default on screens < 500px, or explicitly selected) */
  body.sidebar-small .blocklyToolboxDiv,
  body.sidebar-small .blocklyToolbox {
    width: 70px !important;
    padding: 42px 0 8px 0 !important;
  }
  body.sidebar-small .blocklyFlyout {
    transform: translateX(70px) !important;
    max-width: calc(100vw - 70px) !important;
  }
  body.sidebar-small .blocklyTreeRow,
  body.sidebar-small .blocklyToolboxCategory {
    margin: 4px 1px !important;
    padding: 6px 1px !important;
  }
  body.sidebar-small .blocklyTreeLabel,
  body.sidebar-small .blocklyToolboxCategoryLabel {
    font-size: 8px !important;
    margin-top: 4px !important;
    line-height: 1.15 !important;
    letter-spacing: -0.15px !important;
  }
  body.sidebar-small .toolbox-category-icon-badge {
    width: 24px !important;
    height: 24px !important;
    min-width: 24px !important;
    border-radius: 6px !important;
    margin-bottom: 2px !important;
  }
  body.sidebar-small .toolbox-category-icon-badge svg {
    width: 15px !important;
    height: 15px !important;
  }
  body.sidebar-small .toolbox-custom-code-row,
  body.sidebar-small .toolbox-experimental-row,
  body.sidebar-small .toolbox-advanced-row {
    margin: 4px 2px !important;
    padding: 6px 1px !important;
    border: none !important;
  }
}

/* ─── DYNAMIC DESKTOP SIDEBAR SIZE VARIANTS ─── */
@media (min-width: 769px) {
  body.sidebar-small .blocklyToolboxDiv,
  body.sidebar-small .blocklyToolbox {
    width: 130px !important;
  }
  body.sidebar-small .blocklyTreeRow,
  body.sidebar-small .blocklyToolboxCategory {
    padding: 6px 6px !important;
    margin: 3px 6px !important;
  }
  body.sidebar-small .blocklyTreeLabel,
  body.sidebar-small .blocklyToolboxCategoryLabel {
    font-size: 11px !important;
  }
  body.sidebar-small .toolbox-category-icon-badge {
    width: 24px !important;
    height: 24px !important;
    min-width: 24px !important;
    margin-right: 6px !important;
  }
  body.sidebar-small .toolbox-category-icon-badge svg {
    width: 15px !important;
    height: 15px !important;
  }
}




/* ─── CODEMIRROR LIGHT MODE OVERRIDES ─── */
body:not(.theme-dark) #code-tab .CodeMirror {
  background: var(--bg-main) !important;
  color: #000000 !important;
}

body:not(.theme-dark) .CodeMirror-gutters {
  background: var(--bg-sidebar) !important;
  border-right: 1px solid var(--border) !important;
}

body:not(.theme-dark) .CodeMirror-linenumber {
  color: var(--text-muted) !important;
}

body:not(.theme-dark) .CodeMirror-cursor {
  border-left-color: #000000 !important; /* Pure black caret in light theme */
}

body:not(.theme-dark) .CodeMirror-selected, 
body:not(.theme-dark) .CodeMirror-focused .CodeMirror-selected {
  background: rgba(221, 136, 0, 0.3) !important; /* Warm Amber selection highlight */
}

body:not(.theme-dark) .CodeMirror-activeline-background {
  background: #D9D9D9 !important; /* Current Active Line Highlight (Very Light Gray) */
}

/* Arduino IDE Light Syntax highlighting colors (Light Theme Arduino Specs) */
body:not(.theme-dark) .cm-keyword { color: #D35400 !important; }   /* Functions & Control Keywords (Pumpkin Orange) */
body:not(.theme-dark) .cm-type { color: #5E6D03 !important; }      /* Data Structures & Types (Olive Green) */
body:not(.theme-dark) .cm-builtin { color: #D35400 !important; }   /* Functions & Control Keywords (Pumpkin Orange) */
body:not(.theme-dark) .cm-def { color: #D35400 !important; }       /* Functions & Control Keywords */
body:not(.theme-dark) .cm-comment { color: #95A5A6 !important; font-style: italic; } /* Single-line Comments (Asbestos Gray) */
body:not(.theme-dark) .cm-string { color: #00979C !important; }     /* Variables, Constants & System Types (Teal Blue) */
body:not(.theme-dark) .cm-number { color: #00979C !important; }     /* Variables, Constants & System Types */
body:not(.theme-dark) .cm-variable { color: #000000 !important; }   /* Normal Un-highlighted Text (Pure Black) */
body:not(.theme-dark) .cm-variable-2 { color: #000000 !important; }
body:not(.theme-dark) .cm-variable-3 { color: #000000 !important; }
body:not(.theme-dark) .cm-operator { color: #000000 !important; }

/* Blockly Canvas & Dropdown styling adjustments for light mode */
body:not(.theme-dark) .blocklyFieldDropdown rect.blocklyFieldRect,
body:not(.theme-dark) .blocklyFieldVariable rect.blocklyFieldRect {
  stroke: rgba(255, 255, 255, 0.25) !important;
  fill-opacity: 0.15 !important;
  fill: #000000 !important;
}

/* ─── BLOCKLY SIDEBAR LIGHT MODE OVERRIDES ─── */
body:not(.theme-dark) .blocklyToolboxDiv,
body:not(.theme-dark) .blocklyToolbox {
  background-color: var(--bg-sidebar) !important;
  border-right: 1px solid var(--border) !important;
}

/* Blockly Flyout (Sidebar Drawer) Light Mode Overrides */
body:not(.theme-dark) .blocklyFlyoutBackground {
  fill: var(--bg-sidebar) !important; /* Clean light grey #f8f9fa */
  fill-opacity: 0.95 !important;
  stroke: var(--border) !important;
}

body:not(.theme-dark) .blocklyFlyoutButtonBackground {
  fill: var(--tab-inactive-bg) !important;
  stroke: var(--border) !important;
}

body:not(.theme-dark) .blocklyFlyoutButton:hover .blocklyFlyoutButtonBackground {
  fill: var(--btn-disabled) !important;
  stroke: var(--accent) !important;
}

body:not(.theme-dark) .blocklyFlyoutButton .blocklyText {
  fill: var(--text-primary) !important;
}

body:not(.theme-dark) .blocklyFlyoutLabelText,
body:not(.theme-dark) .blocklyFlyoutLabel text,
body:not(.theme-dark) .blocklyFlyoutLabel .blocklyText {
  fill: var(--accent) !important;
}

body:not(.theme-dark) .blocklyTreeRow,
body:not(.theme-dark) .blocklyToolboxCategory {
  background-color: transparent !important;
}

body:not(.theme-dark) .blocklyTreeRow:hover,
body:not(.theme-dark) .blocklyToolboxCategory:hover {
  background-color: rgba(0, 0, 0, 0.05) !important;
}

body:not(.theme-dark) .blocklyTreeSelected,
body:not(.theme-dark) .blocklyToolboxCategory.blocklyToolboxSelected {
  background-color: rgba(0, 0, 0, 0.08) !important;
}

body:not(.theme-dark) .blocklyTreeLabel,
body:not(.theme-dark) .blocklyToolboxCategoryLabel {
  color: var(--text-primary) !important;
}

body:not(.theme-dark) .blocklyTreeSelected .blocklyTreeLabel,
body:not(.theme-dark) .blocklyToolboxSelected .blocklyToolboxCategoryLabel {
  color: var(--text-bright) !important;
}

body:not(.theme-dark) .blocklyTreeSeparator,
body:not(.theme-dark) .blocklyToolboxSeparator {
  background-color: var(--border) !important;
}

body:not(.theme-dark) .blocklyToolboxCategoryGroup::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15) !important;
}

/* Custom Bottom Button Rows in Light Mode */
body:not(.theme-dark) .toolbox-custom-code-row {
  background-color: var(--tab-inactive-bg) !important;
  border: 1px solid var(--border) !important;
}

body:not(.theme-dark) .toolbox-custom-code-row:hover {
  background-color: var(--btn-disabled) !important;
}

body:not(.theme-dark) .toolbox-custom-code-row.blocklyTreeSelected {
  background-color: var(--border) !important;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.08) !important;
}

body:not(.theme-dark) .toolbox-experimental-row {
  background-color: var(--bg-main) !important;
  border: 1px solid var(--border) !important;
}

body:not(.theme-dark) .toolbox-experimental-row:hover {
  background-color: var(--btn-disabled) !important;
}

body:not(.theme-dark) .toolbox-experimental-row.blocklyTreeSelected {
  background-color: var(--border) !important;
}

body:not(.theme-dark) .toolbox-advanced-row {
  background-color: var(--bg-main) !important;
  border: 1px solid var(--border) !important;
}

body:not(.theme-dark) .toolbox-advanced-row:hover {
  background-color: var(--btn-disabled) !important;
}

body:not(.theme-dark) .toolbox-advanced-row.blocklyTreeSelected {
  background-color: var(--border) !important;
}

/* More Blocks Button Light Mode Overrides */
body:not(.theme-dark) #more-blocks-btn {
  background: var(--tab-inactive-bg) !important;
  color: var(--accent) !important;
  border-top: 1px solid var(--border) !important;
}

body:not(.theme-dark) #more-blocks-btn:hover {
  background: var(--btn-disabled) !important;
  color: var(--accent-hover) !important;
}

/* ─── TAB BAR LIGHT MODE OVERRIDES ─── */
body:not(.theme-dark) .tab-bar {
  background: rgba(248, 249, 250, 0.7) !important;
  border-right: 1px solid rgba(0, 0, 0, 0.08) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08) !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05) !important;
}

body:not(.theme-dark) .tab-btn {
  color: var(--text-muted) !important;
}

body:not(.theme-dark) .tab-btn.active {
  color: var(--text-bright) !important;
  background: rgba(0, 0, 0, 0.08) !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05) !important;
  font-weight: 600;
}

body:not(.theme-dark) .tab-btn:hover:not(.active) {
  color: var(--text-primary) !important;
  background: rgba(0, 0, 0, 0.03) !important;
}

/* ─── MOBILE WORKSPACE UNDO/REDO CONTROLS ─── */
.mobile-workspace-controls {
  position: absolute;
  bottom: 24px;
  right: 24px;
  display: none; /* Hidden on desktop */
  flex-direction: column;
  gap: 12px;
  z-index: 99; /* Float clearly over Blockly canvas but below menu overlays */
}

.mobile-ctrl-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(31, 39, 42, 0.85); /* Premium glassmorphic background matching dark theme */
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #DAE3E3;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0;
  outline: none;
}

body:not(.theme-dark) .mobile-ctrl-btn {
  background: rgba(255, 255, 255, 0.85); /* Light glassmorphism */
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: #495057;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.mobile-ctrl-btn:active {
  transform: scale(0.9);
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.mobile-ctrl-btn svg {
  display: block;
  stroke: currentColor;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

@media (max-width: 768px) {
  .mobile-workspace-controls {
    display: flex; /* Shown on mobile */
  }
}