/* === CSS Variables === */
.builder-wrapper {
  width: 100%;
  min-width: 0;
  min-height: 0;
  /* Primary Colors */
  --color-primary-start: #2b2b2bc9;
  --color-primary-end: #2b2b2bc9;
  --color-primary-hover-start: #f8c420;
  --color-primary-hover-end: #e6632a;
  --color-primary-rgb: 243, 115, 53;
  /*--color-primary-rgb: 243, 115, 53;
  
  /* Secondary Colors */
  --color-disabled-start: #6c757d;
  --color-disabled-end: #495057;
  --color-disabled-hover-start: #5a6268;
  --color-disabled-hover-end: #3d4145;
  
  /* Text Colors */
  --color-text-primary: #333;
  --color-text-secondary: #555;
  --color-text-muted: #737373;
  --color-text-white: #ffffff;
  --color-text-light: #ecf0f1;
  
  /* Background Colors */
  --color-bg-white: #ffffff;
  --color-bg-light: #f8f9fa;
  --color-bg-lighter: #f4f4f4;
  --color-bg-gray: #cbd5e1;
  
  /* Border Colors */
  --color-border-light: #ccc;
  --color-border-medium: #aaa;
  --color-border-primary: rgba(var(--color-primary-rgb), 0.3);
  --color-border-primary-strong: rgba(var(--color-primary-rgb), 0.5);
  
  /* Context Menu Colors */
  --color-context-bg-start: #2c3e50;
  --color-context-bg-end: #34495e;
  --color-context-border: #4a5a6c;
  --color-context-hover: rgba(52, 152, 219, 0.25);
  --color-context-icon: #3498db;
  --color-context-text-muted: #95a5a6;
  
  /* Tree View Colors */
  --color-tree-help-start: #667eea;
  --color-tree-help-end: #764ba2;
  --color-tree-link-then: #10b981;
  --color-tree-link-else: #ef4444;
  --color-tree-link-stroke: #cbd5e1;
  
  /* Sequence Block Colors */
  --color-sequence-bg: #737373;
  --color-sequence-border: #737373;
  --color-sequence-text: oldlace;
  --color-action-bg: #3f7f5f;
  --color-action-border: #2e664b;
  --color-module-bg: #265f87;
  --color-module-border: #1f4c6c;
  --color-link-bg: #6f557f;
  --color-link-border: #594066;
  --color-comment-bg: #6b7280;
  --color-comment-border: #4b5563;
  --color-url-bg: #2563eb;
  --color-url-border: #087066;
  --color-test-hint-bg: #7c3aed;
  --color-test-hint-border: #6d28d9;
  
  /* Condition Block Colors */
  --color-condition-start: #eba739;
  --color-condition-end: rgba(198, 71, 25, 0.7);
  
  /* Highlight Colors */
  --color-highlight-bg: rgba(246, 177, 107, 0.08);
  --color-highlight-border: rgba(246, 177, 107, 0.6);
  --color-highlight-label-bg: rgba(246, 177, 107, 0.3);
  --color-highlight-label-text: #5a3a1a;
  
  /* Spacing */
  --spacing-xs: 0.2rem;
  --spacing-sm: 0.3rem;
  --spacing-md: 0.5rem;
  --spacing-lg: 1rem;
  --spacing-xl: 1.5rem;
  --spacing-xxl: 2.5rem;
  
  /* Border Radius */
  --radius-sm: 3px;
  --radius-md: 5px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-xxl: 15px;
  --radius-round: 30px;
  
  /* Font Sizes */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.9rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.1rem;
  --font-size-xl: 1.5rem;
  
  /* Transitions */
  --transition-fast: 0.1s ease-out;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
  --transition-zoom: 0.08s ease-out;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(var(--color-primary-rgb), 0.3);
  --shadow-lg: 0 8px 20px rgba(var(--color-primary-rgb), 0.5);
  --shadow-xl: 0 12px 32px rgba(var(--color-primary-rgb), 0.4);
  --shadow-inset-light: inset 0 1px 0 rgba(255, 255, 255, 0.3);
  --shadow-inset-dark: inset 0 -1px 0 rgba(0, 0, 0, 0.1);
  
  /* Z-Index */
  --z-index-base: 0;
  --z-index-dropdown: 100002;
  --z-index-header: 100000;
  --z-index-context-menu: 99999;
  --z-index-popup: 100003;
}

/* === General Reset === */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* === Disable All Animations During Parsing === */
.builder-wrapper body.parsing *,
.builder-wrapper body.parsing *::before,
.builder-wrapper body.parsing *::after {
  animation: none !important;
  transition: none !important;
  transform: none !important;
  will-change: auto !important;
}

/* Force browser to skip layout calculations during parsing */
.builder-wrapper body.parsing .canvas-content {
  content-visibility: hidden;
  contain: strict;
  /* Don't use display:none - let JavaScript handle visibility */
}

/* Use CSS containment when not parsing for better performance */
.builder-wrapper .canvas-content {
  contain: layout style;
}

/* CRITICAL: Simplified styling during parsing AND for large diagrams */
/* Use .simple-mode class to keep simple styling after parsing */
.builder-wrapper body.parsing .condition-block,
.builder-wrapper body.simple-mode .condition-block {
  background: #fdc830 !important; /* Solid color instead of gradient */
  box-shadow: none !important;
}

.builder-wrapper body.parsing .item,
.builder-wrapper body.simple-mode .item {
  background: #737373 !important; /* Solid color instead of gradient */
  box-shadow: none !important;
}

.builder-wrapper body.parsing .branch,
.builder-wrapper body.simple-mode .branch {
  box-shadow: none !important;
}

.builder-wrapper body.parsing .dropzone,
.builder-wrapper body.simple-mode .dropzone {
  box-shadow: none !important;
}

/* Also disable animations in simple mode */
.builder-wrapper body.simple-mode *,
.builder-wrapper body.simple-mode *::before,
.builder-wrapper body.simple-mode *::after {
  animation: none !important;
  transition: none !important;
}

/* PANNING OPTIMIZATION: When panning, use GPU acceleration and skip expensive renders */
.builder-wrapper .canvas-content.panning {
  will-change: transform;
  /* Disable expensive effects during panning - but don't change colors to avoid rebuild */
  pointer-events: none; /* Prevent interactions during pan */
  /* NOTE: Don't set transform here - it would override the JavaScript panning transform */
}

/* Only disable shadows during panning, keep colors intact to avoid expensive rebuilds */
.builder-wrapper .canvas-content.panning .condition-block,
.builder-wrapper .canvas-content.panning .item {
  box-shadow: none !important;
  text-shadow: none !important;
  /* Don't change background colors - that forces expensive repaints */
}

/* Disable specific animations that cause performance issues */
.builder-wrapper body.parsing .item,
.builder-wrapper body.parsing .condition-block,
.builder-wrapper body.parsing .dropzone,
.builder-wrapper body.parsing .branch,
.builder-wrapper body.parsing .canvas,
.builder-wrapper body.parsing .canvas-content {
  animation: none !important;
  transition: none !important;
}

/* Disable empty sequence pulse animation during parsing */
.builder-wrapper body.parsing .item:empty,
.builder-wrapper body.parsing .item.empty-sequence {
  animation: none !important;
}

/* Disable empty dropzone animations during parsing */
.builder-wrapper body.parsing .dropzone:empty {
  animation: none !important;
}

/* Disable tree node animations during parsing */
.builder-wrapper body.parsing .node rect {
  transition: none !important;
  animation: none !important;
}

.builder-wrapper .builder-wrapper body.parsing .node.sequence.empty-sequence rect {
  animation: none !important;
}

/* Disable progress bar animation during parsing */
.builder-wrapper body.parsing #parseProgressBar {
  transition: none !important;
}

/* Font Awesome icon styling */
.builder-wrapper .builder-wrapper button i,
.builder-wrapper .block i,
.builder-wrapper .icon i {
  margin-right: 0.3em;
  font-style: normal;
  display: inline-block;
  font-weight: 900;
}

/* Zoom buttons without text - center icons */
.builder-wrapper .zoom-controls button:not(#viewToggleBtn):not(#inlineViewBtn):not([onclick*="undo"]):not([onclick*="redo"]):not([onclick*="Source"]):not([onclick*="Reset"]) i {
  margin-right: 0;
}

/* Ensure icons render cleanly without outlines */
.builder-wrapper button::-moz-focus-inner {
  border: 0;
  outline: none;
}

/* Close button icon styling */
.builder-wrapper .close-btn i {
  margin-right: 0;
  font-size: 1rem;
}

/* Context menu icon spacing */
.builder-wrapper .context-menu .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
}

/* Help icon in tree view */
.builder-wrapper .tree-help .help-icon i {
  margin-right: 0;
  font-size: 1.1em;
}

.builder-wrapper body {
  font-family: 'Segoe UI', sans-serif;
  background: var(--color-bg-white);
  height: 100vh;
  color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

/* Simple utility to hide elements */
.builder-wrapper .hidden {
  display: none !important;
}

.requirement-picker.hidden {
  display: none !important;
}

.builder-wrapper header {
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  color: var(--color-text-white);
  padding: var(--spacing-md) var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  border-radius: var(--radius-round);
  border: none;
  margin-top: 5px;
  box-shadow: 
    var(--shadow-xl),
    var(--shadow-inset-light),
    var(--shadow-inset-dark);
  transform: perspective(1000px) rotateX(2deg);
  transition: all var(--transition-slow);
  overflow: visible;
  position: relative;
  z-index: var(--z-index-header);
}

.builder-wrapper header:hover {
  transform: perspective(1000px) rotateX(0deg);
  box-shadow: 
    0 12px 40px rgba(var(--color-primary-rgb), 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    var(--shadow-inset-dark);
  overflow: visible;
}

/* Header sidebar controls - replacing h1 */
.builder-wrapper .header-sidebar-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.builder-wrapper .header-label {
  font-weight: 600;
  font-size: var(--font-size-base);
  color: var(--color-text-white);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  margin-right: var(--spacing-xs);
}

.builder-wrapper .header-sidebar-controls .block {
  margin-bottom: 0;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.builder-wrapper .header-sidebar-controls button {
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  color: var(--color-text-white);
  border: none;
  outline: none;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-xxl);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-slow);
  box-shadow: 
    var(--shadow-md),
    var(--shadow-inset-light),
    var(--shadow-inset-dark);
  transform: perspective(1000px) rotateX(5deg);
  position: relative;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.builder-wrapper .header-sidebar-controls button:focus {
  outline: none;
}

.builder-wrapper .header-sidebar-controls button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.builder-wrapper .header-sidebar-controls button:hover {
  background: linear-gradient(135deg, var(--color-primary-hover-start) 0%, var(--color-primary-hover-end) 100%);
  color: var(--color-text-white);
  transform: perspective(1000px) rotateX(0deg) translateY(-2px) scale(1.05);
  box-shadow: 
    var(--shadow-lg),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    var(--shadow-inset-dark);
}

.builder-wrapper .header-sidebar-controls button:hover::before {
  left: 100%;
}

.builder-wrapper .header-sidebar-controls button:active {
  transform: perspective(1000px) rotateX(0deg) translateY(0px) scale(0.98);
  box-shadow: 
    var(--shadow-sm),
    inset 0 1px 0 rgba(0, 0, 0, 0.2);
  outline: none;
}

.builder-wrapper header nav a {
  color: var(--color-text-white);
  text-decoration: none;
  font-size: var(--font-size-sm);
}

.builder-wrapper nav.nav-actions {
  overflow: visible;
}

.builder-wrapper main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: var(--spacing-md);
  min-height: 0;
}

.builder-wrapper .container {
  display: flex;
  gap: var(--spacing-md);
  flex: 1;
  overflow: hidden;
  height: 100%;
}

/* === Navbar Settings === */
.builder-wrapper .zoom-controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-left: var(--spacing-lg);
  overflow: visible;
}

.builder-wrapper .zoom-controls button {
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  color: var(--color-text-white);
  border: none;
  outline: none;
  padding: var(--spacing-sm) var(--spacing-sm);
  border-radius: var(--radius-xxl);
  cursor: pointer;
  font-size: var(--font-size-base);
  transition: all var(--transition-slow);
  box-shadow: 
    var(--shadow-md),
    var(--shadow-inset-light),
    var(--shadow-inset-dark);
  transform: perspective(1000px) rotateX(5deg);
  position: relative;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.builder-wrapper .zoom-controls button:focus {
  outline: none;
}

.builder-wrapper .zoom-controls button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.5s ease;
}

.builder-wrapper .zoom-controls button:hover {
  background: linear-gradient(135deg, var(--color-primary-hover-start) 0%, var(--color-primary-hover-end) 100%);
  color: var(--color-text-white);
  transform: perspective(1000px) rotateX(0deg) translateY(-2px) scale(1.05);
  box-shadow: 
    var(--shadow-lg),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    var(--shadow-inset-dark);
}

.builder-wrapper .zoom-controls button:hover::before {
  left: 100%;
}

.builder-wrapper .zoom-controls button:active {
  transform: perspective(1000px) rotateX(0deg) translateY(0px) scale(0.98);
  box-shadow: 
    var(--shadow-sm),
    inset 0 1px 0 rgba(0, 0, 0, 0.2);
  outline: none;
}

/* Edit Mode button styling when disabled */
.builder-wrapper .zoom-controls button.edit-mode-off {
  background: linear-gradient(135deg, var(--color-disabled-start) 0%, var(--color-disabled-end) 100%);
  opacity: 0.8;
}

.builder-wrapper .zoom-controls button.edit-mode-off:hover {
  background: linear-gradient(135deg, var(--color-disabled-hover-start) 0%, var(--color-disabled-hover-end) 100%);
  opacity: 1;
}

.builder-wrapper #zoomSlider {
  width: 120px;
  height: 6px;
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 
    inset 0 2px 4px rgba(var(--color-primary-rgb), 0.3),
    0 1px 2px rgba(var(--color-primary-rgb), 0.2);
  transition: all var(--transition-slow);
  opacity: 0.7;
}

.builder-wrapper #zoomSlider:hover {
  box-shadow: 
    inset 0 2px 4px rgba(var(--color-primary-rgb), 0.4),
    0 2px 4px rgba(var(--color-primary-rgb), 0.3);
  opacity: 1;
}

.builder-wrapper #zoomSlider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  background: var(--color-text-white);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 
    0 4px 8px rgba(var(--color-primary-rgb), 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 1),
    0 0 0 2px rgba(var(--color-primary-rgb), 0.3);
  transition: all var(--transition-slow);
  transform: perspective(1000px) rotateX(5deg);
}

.builder-wrapper #zoomSlider::-webkit-slider-thumb:hover {
  transform: perspective(1000px) rotateX(0deg) scale(1.2);
  box-shadow: 
    0 6px 12px rgba(var(--color-primary-rgb), 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 1),
    0 0 0 3px rgba(var(--color-primary-rgb), 0.4);
}

.builder-wrapper #zoomSlider::-webkit-slider-thumb:active {
  transform: perspective(1000px) rotateX(0deg) scale(0.95);
  box-shadow: 
    0 2px 4px rgba(246, 177, 107, 0.5),
    inset 0 1px 0 rgba(0, 0, 0, 0.3);
}

.builder-wrapper .scroll-wrapper {
  overflow: auto;
  width: 100%;
  height: 100%;
  position: relative;
}


/* === Sidebar === */

.builder-wrapper .sidebar h3 {
  margin-bottom: 1rem;
}

.builder-wrapper .block {
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  margin-bottom: 0.75rem;
  padding: var(--spacing-md) 0.8rem;
  cursor: grab;
  border: none;
  user-select: none;
  border-radius: var(--radius-round);
  transition: all var(--transition-slow);
  box-shadow: 
    var(--shadow-md),
    var(--shadow-inset-light),
    var(--shadow-inset-dark);
  transform: perspective(1000px) rotateX(3deg);
  position: relative;
  overflow: hidden;
  color: var(--color-text-white);
}

.builder-wrapper .block::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: left 0.6s ease;
}

.builder-wrapper .block:hover {
  background: linear-gradient(135deg, var(--color-primary-hover-start) 0%, var(--color-primary-hover-end) 100%);
  color: var(--color-text-white);
  transform: perspective(1000px) rotateX(0deg) translateY(-2px) scale(1.05);
  box-shadow: 
    var(--shadow-lg),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    var(--shadow-inset-dark);
}

.builder-wrapper .block:hover::before {
  left: 100%;
}

.builder-wrapper .block:active {
  transform: perspective(1000px) rotateX(0deg) translateY(0px) scale(0.98);
  box-shadow: 
    var(--shadow-sm),
    inset 0 1px 0 rgba(0, 0, 0, 0.2);
  cursor: grabbing;
}

/* Make vertical container for sidebar + canvas */
.builder-wrapper .container.vertical-layout {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

/* Horizontal Sidebar */
.builder-wrapper .sidebar.horizontal {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-md) var(--spacing-lg);
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  border: none;
  border-radius: var(--radius-round);
  flex-wrap: wrap;
  color: var(--color-text-white);
  width: fit-content;
  min-width: fit-content;
  flex-shrink: 0;
  box-shadow: 
    0 6px 20px rgba(var(--color-primary-rgb), 0.35),
    var(--shadow-inset-light),
    var(--shadow-inset-dark);
  transform: perspective(1000px) rotateX(1deg);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
  z-index: 100001; /* Above canvas; below very-high header dropdowns */
}

/* Inline tree controls next to sidebar */
.builder-wrapper .sidebar.horizontal .tree-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.builder-wrapper .sidebar.horizontal::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 2s ease;
}

.builder-wrapper .sidebar.horizontal:hover {
  transform: perspective(1000px) rotateX(0deg) translateY(-1px);
  box-shadow: 
    0 8px 25px rgba(var(--color-primary-rgb), 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    var(--shadow-inset-dark);
}

.builder-wrapper .sidebar.horizontal:hover::before {
  left: 100%;
}

.builder-wrapper .sidebar.horizontal h3 {
  margin: 0;
  font-size: var(--font-size-sm);
  white-space: nowrap;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transform: perspective(1000px) rotateX(1deg);
  transition: all var(--transition-slow);
  position: relative;
  z-index: 1;
}

.builder-wrapper .sidebar.horizontal:hover h3 {
  transform: perspective(1000px) rotateX(0deg) translateY(-1px);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.25);
}

.builder-wrapper .sidebar-blocks {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.builder-wrapper .sidebar-blocks .block {
  margin: 0;
  font-weight: 500;
  font-size: var(--font-size-sm);
  text-shadow: none;
}

.builder-wrapper .sidebar-blocks .block:hover {
  text-shadow: none;
}

/* Removed transitions for performance - only keep for dragging */
.builder-wrapper .item,
.builder-wrapper .condition-block {
  /* Removed transitions - they cause performance issues on large diagrams */
  position: relative;
  /* Improve drag UX and prevent text selection interfering with drag */
  user-select: none;
  -webkit-user-drag: element;
}

.builder-wrapper .canvas-content .item.dragging,
.builder-wrapper .canvas-content .condition-block.dragging {
  opacity: 0.95; /* subtle visual feedback */
  transform: none; /* avoid costly transforms during drag */
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15); /* lighter shadow */
  cursor: grabbing;
  z-index: 1000;
  animation: none; /* remove pulse animation */
}

@keyframes dragPulse {
  from {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  }
  to {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  }
}

.builder-wrapper .drag-placeholder {
  background: rgba(246, 177, 107, 0.06);
  border: 2px dashed #f6b16b;
  margin: 4px 0;
  min-height: 50px;
  transition: none;
  animation: none; /* remove pulse */
}

@keyframes placeholderPulse {
  from {
    background: linear-gradient(135deg, rgba(243, 115, 53, 0.05), rgba(243, 115, 53, 0.05));
    border-color: rgba(243, 115, 53, 0.3);
  }
  to {
    background: linear-gradient(135deg, rgba(243, 115, 53, 0.1), rgba(243, 115, 53, 0.1));
    border-color: rgba(243, 115, 53, 0.5);
  }
}

/* Animation for empty dropzones */
@keyframes emptyDropzonePulse {
  from {
    background: linear-gradient(135deg, rgba(243, 115, 53, 0.08), rgba(243, 115, 53, 0.08));
    box-shadow: inset 0 0 0 2px rgba(243, 115, 53, 0.2);
  }
  to {
    background: linear-gradient(135deg, rgba(115, 115, 115, 0.12), rgba(115, 115, 115, 0.12));
    box-shadow: inset 0 0 0 2px rgba(243, 115, 53, 0.35);
  }
}

/* Drop animation for when blocks are placed */
@keyframes dropAnimation {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(-20px);
  }
  50% {
    transform: scale(1.05) translateY(0);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}




/* === Canvas Area === */
.builder-wrapper .canvas-wrapper {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  width: 100%;
  min-width: 0;
  overflow: auto;
  position: relative;
  flex: 1;
  min-height: 0;
  height: 100%;
  padding: 20px;
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  border: 2px dashed var(--color-border-primary);
  scroll-behavior: smooth;
  z-index: var(--z-index-base);
  /* Smooth scrolling for zoom operations */
  -webkit-overflow-scrolling: touch;
}

.builder-wrapper .canvas {
  display: inline-flex;
  justify-content: center;
  align-items: flex-start;
  width: fit-content;
  height: fit-content;
  position: relative;
  border: none;
  padding: 0;
  margin: 0 auto;
  transition: transform var(--transition-zoom);
  transform-origin: top center; /* Anchor zoom to top to avoid overlapping header */
  will-change: transform; /* Optimize for transform animations */
}

/* Disable transition during rapid zoom for immediate response */
.builder-wrapper .canvas.zooming {
  transition: none;
}

.builder-wrapper .canvas-content {
  display: inline-block;
  margin: 0;
  min-width: 400px;
  width: fit-content;
  /* No transition on transform - it interferes with panning and mode switching */
}

/* When edit mode is off, show grab cursor on canvas content */
.builder-wrapper .canvas-wrapper.edit-mode-off .canvas-content {
  cursor: grab;
}

.builder-wrapper .canvas-wrapper.edit-mode-off .canvas-content:active {
  cursor: grabbing;
}



.builder-wrapper .canvas .placeholder {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: var(--font-size-lg);
  text-align: center;
  padding: var(--spacing-xl);
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.05), rgba(var(--color-primary-rgb), 0.05));
  border: 2px dashed var(--color-border-primary);
  border-radius: var(--radius-lg);
  animation: none; /* remove pulse */
}

.builder-wrapper .canvas .item {
  padding: var(--spacing-md);
  margin-bottom: 0.1rem;
  background: linear-gradient(135deg, var(--color-sequence-bg) 0%, var(--color-sequence-bg) 100%);
  border: 1px solid var(--color-sequence-border);
  cursor: grab;
  border-radius: var(--radius-md);
  color: var(--color-sequence-text);
  /* Removed transition for performance */
  min-width: 100%;
  width: fit-content;
  display: block;
  box-sizing: border-box;
  font-weight: normal !important;
}

/* Sequence blocks inside branches should take full width */
.builder-wrapper .dropzone .item {
  width: 100%;
}

/* Condition blocks inside branches should also take full width */
.builder-wrapper .dropzone .condition-block {
  width: 100%;
}

/* Removed hover animations for performance */
/* .canvas .item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
} */

.builder-wrapper .canvas .item:active {
  cursor: grabbing;
}

.builder-wrapper .canvas .item.typed-action {
  background: linear-gradient(135deg, var(--color-action-bg) 0%, var(--color-action-bg) 100%);
  border-color: var(--color-action-border);
}

.builder-wrapper .canvas .item.module-call {
  background: linear-gradient(135deg, var(--color-module-bg) 0%, var(--color-module-bg) 100%);
  border-color: var(--color-module-border);
  cursor: pointer;
}

.builder-wrapper .canvas .condition-block.module-call {
  border-color: var(--color-module-border);
  box-shadow: inset 0 0 0 2px rgba(47, 72, 88, .18);
}

.builder-wrapper .canvas .item.requirement-link {
  background: linear-gradient(135deg, var(--color-link-bg) 0%, var(--color-link-bg) 100%);
  border-color: var(--color-link-border);
  cursor: pointer;
}

.builder-wrapper .canvas .item.has-annotations,
.builder-wrapper .canvas .condition-block.has-annotations {
  position: relative;
}

.builder-wrapper .canvas .item.quality-warning-unclear {
  border-color: #dc2626;
  background: linear-gradient(135deg, #b91c1c 0%, #ef4444 100%);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .22);
}

.builder-wrapper .canvas .item.quality-warning-unclear::after {
  content: "Review";
  position: absolute;
  top: -10px;
  right: -8px;
  padding: 2px 7px;
  border: 1px solid #fecaca;
  border-radius: 999px;
  background: #fff1f2;
  color: #991b1b;
  font-size: 10px;
  font-weight: 800;
  line-height: 1.4;
  box-shadow: 0 8px 18px rgba(153, 27, 27, .16);
}

.builder-wrapper .annotation-badges {
  position: absolute;
  top: -10px;
  right: -8px;
  display: inline-flex;
  gap: 4px;
  z-index: 2;
}

.builder-wrapper .module-relation-badges {
  position: absolute;
  top: -10px;
  left: -8px;
  display: inline-flex;
  gap: 4px;
  z-index: 2;
}

.builder-wrapper .module-relation-badge {
  width: 24px;
  height: 24px;
  border: 1px solid rgba(47, 72, 88, .28);
  border-radius: 999px;
  background: #fff;
  color: #2f4858;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 18px rgba(15, 23, 42, .12);
  cursor: pointer;
}

.builder-wrapper .annotation-badge {
  width: 22px;
  min-width: 22px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 10px;
  background: #111827;
  color: #fff;
  font-size: 10px;
  font-weight: 700 !important;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.25);
}

.builder-wrapper .annotation-badge i {
  font-size: 10px;
  line-height: 1;
}

.builder-wrapper .annotation-badge--comment {
  background: #4b5563;
}

.builder-wrapper .annotation-badge--url {
  background: #2563eb;
}

.builder-wrapper .canvas .item.comment-note {
  background: linear-gradient(135deg, var(--color-comment-bg) 0%, var(--color-comment-bg) 100%);
  border-color: var(--color-comment-border);
  font-style: italic;
}

.builder-wrapper .canvas .item.external-url {
  background: linear-gradient(135deg, var(--color-url-bg) 0%, var(--color-url-bg) 100%);
  border-color: var(--color-url-border);
  cursor: pointer;
}

.builder-wrapper .canvas .item.test-hint {
  background: linear-gradient(135deg, var(--color-test-hint-bg) 0%, var(--color-test-hint-bg) 100%);
  border-color: var(--color-test-hint-border);
}

.builder-wrapper .module-context-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin: 10px 16px;
  padding: 10px 12px;
  border: 1px solid #bfdbfe;
  border-left: 4px solid #2563eb;
  border-radius: 6px;
  background: #eff6ff;
  color: #1e3a8a;
}

.builder-wrapper .module-context-banner__main {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1 1 auto;
}

.builder-wrapper .module-context-banner__kicker {
  flex: 0 0 auto;
  padding: 2px 6px;
  border-radius: 4px;
  background: #dbeafe;
  color: #087066;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.builder-wrapper .module-context-banner__back {
  flex: 0 0 auto;
  color: #087066;
  font-weight: 700;
  text-decoration: none;
}

.builder-wrapper .module-context-banner__back:hover {
  text-decoration: underline;
}

.builder-wrapper .module-context-banner__trail {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: thin;
}

.builder-wrapper .module-context-banner__trail a,
.builder-wrapper .module-context-banner__trail strong {
  display: inline-block;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
  font-size: 13px;
}

.builder-wrapper .module-context-banner__trail a {
  color: #087066;
  font-weight: 700;
  text-decoration: none;
}

.builder-wrapper .module-context-banner__trail a:hover {
  text-decoration: underline;
}

.builder-wrapper .module-context-banner__arrow {
  color: #64748b;
  font-size: 12px;
}

.requirement-picker {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(248, 250, 252, 0.78);
  backdrop-filter: blur(2px);
  z-index: 2147483000;
}

.requirement-picker__panel {
  width: min(720px, 100%);
  max-height: min(680px, calc(100vh - 48px));
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  border-radius: 8px;
  background: #fff;
  color: #1f2937;
  border: 1px solid #d7dee8;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.16);
  overflow: hidden;
}

.requirement-picker__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid #e5e7eb;
  background: #f8fafc;
}

.requirement-picker__header strong {
  color: #111827;
  font-size: 16px;
  font-weight: 700;
}

.requirement-picker__close {
  width: 32px;
  height: 32px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  background: #ffffff;
  color: #374151;
  cursor: pointer;
}

.requirement-picker__close:hover {
  background: #f3f4f6;
}

.requirement-picker__search {
  width: calc(100% - 36px);
  margin: 16px 18px 6px;
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 14px;
  color: #111827;
  background: #ffffff;
  outline: none;
}

.requirement-picker__search:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.requirement-picker__results {
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 18px 18px;
}

.requirement-picker__item {
  display: grid;
  grid-template-columns: minmax(120px, 0.8fr) minmax(180px, 1.4fr) minmax(120px, 0.8fr);
  gap: 12px;
  width: 100%;
  padding: 11px 12px;
  border: 1px solid #dbe2ea;
  border-radius: 6px;
  background: #fff;
  color: #1f2937;
  text-align: left;
  cursor: pointer;
  box-shadow: none;
}

.requirement-picker__item:hover,
.requirement-picker__item:focus {
  border-color: #9db4d0;
  outline: none;
  background: #f8fafc;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.requirement-picker__ref {
  font-weight: 700;
  color: #1f4c6c;
}

.requirement-picker__title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.requirement-picker__meta,
.requirement-picker__empty {
  color: #6b7280;
  font-size: 13px;
}

.requirement-picker__empty {
  padding: 22px 12px;
  text-align: center;
  border: 1px dashed #cbd5e1;
  border-radius: 8px;
  background: #f8fafc;
}

/* Highlight empty sequence blocks with reddish color */
.builder-wrapper .canvas .item:empty,
.builder-wrapper .canvas .item.empty-sequence {
  background: linear-gradient(135deg, rgba(115, 115, 115, 0.15), rgba(115, 115, 115, 0.15));
  border: 1px solid var(--color-primary-hover-end);
  color: var(--color-text-muted);
  box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.2), 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
  animation: emptySequencePulse 2s ease-in-out infinite;
  position: relative;
  min-height: 40px;
}

.builder-wrapper .canvas .item:empty::before,
.builder-wrapper .canvas .item.empty-sequence::before {
  content: 'Empty';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 500;
  opacity: 0.7;
  pointer-events: none;
}

@keyframes emptySequencePulse {
  0%, 100% {
    box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.2), 0 2px 8px rgba(var(--color-primary-rgb), 0.3);
  }
  50% {
    box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.4), 0 2px 12px rgba(var(--color-primary-rgb), 0.5);
  }
}



/* === Code Box === */
.builder-wrapper .codebox {
  flex: 1 1 250px;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  min-width: 200px;
}

.builder-wrapper .codebox h3 {
  margin-bottom: 0.5rem;
}

.builder-wrapper #builderCode {
  height: 200px;
  width: 100%;
  resize: vertical;
  font-family: monospace;
  padding: var(--spacing-md);
  border-radius: 4px;
  border: 1px solid var(--color-border-medium);
  margin-bottom: var(--spacing-md);
}

.builder-wrapper .buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.builder-wrapper button {
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  color: var(--color-text-white);
  border: none;
  outline: none;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-slow);
  box-shadow: var(--shadow-md);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.builder-wrapper button:hover {
  background: linear-gradient(135deg, var(--color-primary-hover-start) 0%, var(--color-primary-hover-end) 100%);
  box-shadow: 0 6px 16px rgba(var(--color-primary-rgb), 0.4);
  transform: translateY(-1px);
}

.builder-wrapper button:focus {
  outline: none;
  box-shadow: var(--shadow-md), 0 0 0 3px rgba(var(--color-primary-rgb), 0.2);
}

.builder-wrapper button:active {
  outline: none;
}

.builder-wrapper .requirement-picker .requirement-picker__item {
  background: #ffffff;
  color: #1f2937;
  border: 1px solid #dbe2ea;
  border-radius: 6px;
  box-shadow: none;
  transform: none;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.builder-wrapper .requirement-picker .requirement-picker__item:hover,
.builder-wrapper .requirement-picker .requirement-picker__item:focus {
  background: #f8fafc;
  color: #1f2937;
  border-color: #9db4d0;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
  transform: none;
}

.builder-wrapper .requirement-picker .requirement-picker__close {
  background: #ffffff;
  color: #374151;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  box-shadow: none;
  transform: none;
}

.builder-wrapper .requirement-picker .requirement-picker__close:hover,
.builder-wrapper .requirement-picker .requirement-picker__close:focus {
  background: #f3f4f6;
  color: #374151;
  box-shadow: none;
  transform: none;
}

.builder-wrapper .code-popup {
  position: fixed;
  top: 10%;
  right: 10%;
  width: 80%;
  max-width: 600px;
  background: var(--color-bg-white);
  border: 2px solid var(--color-primary-hover-end);
  border-radius: var(--radius-lg);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
  z-index: var(--z-index-popup);
  transform: scale(0.9);
  opacity: 0;
  transition: all var(--transition-slow);
  pointer-events: none;
}

.builder-wrapper .code-popup.active {
  transform: scale(1);
  opacity: 1;
  pointer-events: auto;
}

.builder-wrapper .code-popup .codebox {
  padding: var(--spacing-lg);
}

.builder-wrapper .codebox-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5em;
}

.builder-wrapper .close-btn {
  background: transparent;
  border: none;
  outline: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: color var(--transition-normal);
}

.builder-wrapper .close-btn:hover {
  color: red;
}

.builder-wrapper .close-btn:focus {
  outline: none;
}

.builder-wrapper .source-panel {
  margin-top: var(--spacing-lg);
  background: var(--color-bg-white);
  border: 2px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.builder-wrapper .source-panel textarea {
  width: 100%;
  height: 200px;
  resize: vertical;
  font-family: monospace;
  font-size: var(--font-size-base);
  padding: var(--spacing-md);
  border: 1px solid var(--color-primary-hover-end);
  border-radius: 4px;
}

.builder-wrapper #sourceText {
  z-index: 1;
  position: relative;
  height: 30rem;
}


/* === Responsive === */
@media (max-width: 768px) {
  .container {
    flex-direction: column;
  }

  .builder-wrapper header h1 {
    width: 100%;
    margin-bottom: 0.5rem;
  }

  .builder-wrapper .canvas {
    min-height: 200px;
  }

  .builder-wrapper .codebox,
  .sidebar {
    width: 100%;
  }
}

/* .condition-block:hover {
  background-color: rgba(255, 223, 186, 0.6); 
  transform: scale(1.01);
  transition: transform 0.2s ease, background-color 0.2s ease;
  position: relative;
  z-index: 10;
} */

/* Enhanced parent block highlighting */
.builder-wrapper .parent-highlight {
  position: relative;
  outline: 2px solid var(--color-highlight-border);
  outline-offset: 2px;
  background-color: var(--color-highlight-bg);
  transition: all var(--transition-slow) cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1;
}

/* Depth-based highlighting - parent blocks get progressively subtler */
.builder-wrapper .parent-highlight[data-highlight-depth="0"] {
  outline: 3px solid rgba(246, 177, 107, 0.8);
  outline-offset: 3px;
  background-color: rgba(246, 177, 107, 0.15);
  box-shadow: 0 0 20px rgba(246, 177, 107, 0.3);
  z-index: 10;
}

.builder-wrapper .parent-highlight[data-highlight-depth="1"] {
  outline: 2px solid rgba(246, 177, 107, 0.6);
  outline-offset: 2px;
  background-color: rgba(246, 177, 107, 0.1);
  box-shadow: 0 0 15px rgba(246, 177, 107, 0.2);
  z-index: 9;
}

.builder-wrapper .parent-highlight[data-highlight-depth="2"] {
  outline: 2px solid rgba(246, 177, 107, 0.4);
  outline-offset: 1px;
  background-color: rgba(246, 177, 107, 0.06);
  z-index: 8;
}

.builder-wrapper .parent-highlight[data-highlight-depth="3"] {
  outline: 1px solid rgba(246, 177, 107, 0.3);
  outline-offset: 1px;
  background-color: rgba(246, 177, 107, 0.04);
  z-index: 7;
}

/* Condition label highlight */
.builder-wrapper .label-highlight {
  background: linear-gradient(135deg, var(--color-highlight-label-bg), rgba(224, 154, 90, 0.3));
  color: var(--color-highlight-label-text);
  font-weight: bold;
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(246, 177, 107, 0.3);
  transition: all var(--transition-slow) cubic-bezier(0.4, 0, 0.2, 1);
  transform: scale(1.05);
}



.builder-wrapper .condition-block {
  position: relative;
  background: linear-gradient(135deg, var(--color-condition-start) 0%, var(--color-condition-end) 100%);
  border: none;
  border-radius: var(--radius-md);
  padding-top: 2.5em;
  contain: layout style; /* Prevent layout from cascading through nested blocks */
  padding-right: 0px;
  display: table;
  width: 100%;
  min-width: 200px;
  max-width: none;
  box-sizing: border-box;
  cursor: grab;
  /* Removed transition for performance */
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.3);
  transition: min-width var(--transition-normal);
}

/* Removed hover animations for performance */
/* .condition-block:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.4);
} */

.builder-wrapper .condition-block:active {
  cursor: grabbing;
}



/* Diagonal lines */
/* .condition-block::before,
.condition-block::after {
  content: "";
  position: absolute;
  top: 0;
  width: 50%;
  height: 100%;
  pointer-events: none;
  border-top: 2px solid black;
  z-index: 0;
}

.condition-block::before {
  left: 0;
  border-right: none;
  transform: rotate(5deg);
  transform-origin: top left;
}

.condition-block::after {
  right: 0;
  border-left: none;
  transform: rotate(-5deg);
  transform-origin: top right;
} */


.builder-wrapper .condition-label {
  position: absolute;
  top: 0.5em;
  left: 50%;
  transform: translateX(-50%);
  background: transparent;
  /* border: 1px solid #ff9800; */
  border-radius: 1em;
  font-weight: normal !important;
  font-size: clamp(var(--font-size-base), var(--font-size-base));
  z-index: 1;
  text-align: center;
  padding: 0.1em var(--spacing-lg);
  white-space: nowrap;
  color: var(--color-text-white);
}


.builder-wrapper .branches {
  display: table;
  width: 100%;
  table-layout: auto; /* Auto layout allows content to expand */
  position: relative;
}

.builder-wrapper .branch {
  display: table-cell;
  background: var(--color-bg-lighter);
  border-radius: var(--radius-sm);
  border: none;
  min-width: 100px;
  width: auto; /* Allow width to expand based on content */
  vertical-align: top;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.1);
}

/* Removed hover animations for performance */
/* .branch:hover {
  background: #f9f9f9;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.15);
} */
.builder-wrapper .branch:empty,
.builder-wrapper .branch .dropzone:empty {
  flex: 0.5; /* Takes less space if empty */
  opacity: 1;
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.08), rgba(var(--color-primary-rgb), 0.08));
}

.builder-wrapper .branch-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  font-style: italic;
  margin-bottom: var(--spacing-sm);
  cursor: pointer;
  /* Removed transition for performance */
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

/* Removed hover animations for performance */
/* .branch-label:hover {
  background: rgba(115, 115, 115, 0.15);
  color: #737373;
  transform: scale(1.05);
} */

.builder-wrapper .branch-label.true::before {
  content: "✔️ ";
  margin-right: 4px;
}

.builder-wrapper .branch-label.false::before {
  content: "❌ ";
  margin-right: 4px;
}


.builder-wrapper .dropzone {
  min-height: 40px;
  min-width: 80px;
  background: var(--color-bg-white);
  border: none;
  border-radius: var(--radius-sm);
  /* Removed transition for performance */
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
  position: relative;
  width: 100%;
}

/* Highlight empty dropzones with reddish color */
.builder-wrapper .dropzone:empty {
  background: linear-gradient(135deg, rgba(var(--color-primary-rgb), 0.08), rgba(var(--color-primary-rgb), 0.08));
  box-shadow: inset 0 0 0 1px rgba(var(--color-primary-rgb), 0.2);
  min-height: 50px;
  animation: none; /* remove pulse */
}

.builder-wrapper .dropzone:empty::before {
  content: '+';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: rgba(var(--color-primary-rgb), 0.4);
  font-size: 1.5rem;
  font-weight: 300;
  line-height: 1;
  pointer-events: none;
}

.builder-wrapper .branch.quality-warning-empty-branch {
  box-shadow: inset 0 0 0 2px rgba(234, 88, 12, .42);
}

.builder-wrapper .branch.quality-warning-empty-branch .branch-label {
  color: #9a3412;
  background: #fff7ed;
  font-weight: 800;
}

.builder-wrapper .dropzone.quality-warning-empty-branch {
  background: #fff7ed;
  box-shadow: inset 0 0 0 2px rgba(234, 88, 12, .55);
}

.builder-wrapper .dropzone.quality-warning-empty-branch::before {
  content: 'Review empty branch';
  color: #9a3412;
  font-size: .75rem;
  font-weight: 800;
  white-space: nowrap;
}

.builder-wrapper .dropzone.drag-over {
  background: rgba(115, 115, 115, 0.12);
  border: none;
  box-shadow: inset 0 0 0 2px var(--color-text-muted);
  transform: none; /* avoid scale during drag */
}
@media (max-width: 600px) {
  .builder-wrapper .branches {
    flex-direction: column;
  }

  .builder-wrapper .branch {
    width: 100%;
    min-width: auto;
  }
}



/*context menu*/
/* Main Context Menu */
.builder-wrapper .context-menu {
  position: fixed;
  background: linear-gradient(145deg, var(--color-context-bg-start), var(--color-context-bg-end));
  font-family: 'Segoe UI', Roboto, Arial, sans-serif;
  font-size: 14px;
  color: var(--color-text-light);
  border-radius: var(--radius-xl);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--color-context-border);
  z-index: var(--z-index-context-menu);
  min-width: 220px;
  overflow: visible;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.95);
  transform-origin: top left;
  transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  pointer-events: none;
}

@keyframes menuFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.builder-wrapper .context-menu.show {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  pointer-events: auto;
  animation: menuFadeIn 0.15s ease-out;
}

.builder-wrapper .context-menu ul {
  list-style: none;
  margin: 0;
  padding: 6px;
}

/* Main Menu Items */
.builder-wrapper .context-menu li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  cursor: pointer;
  gap: 12px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.builder-wrapper .context-menu li:hover {
  background: var(--color-context-hover);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.builder-wrapper .context-menu .icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  color: var(--color-context-icon);
}

.builder-wrapper .context-menu .text {
  flex: 1;
  text-align: left;
  font-weight: 500;
}

/* Rotating Arrow */
.builder-wrapper .arrow {
  transition: transform var(--transition-slow);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  color: var(--color-context-text-muted);
}

.builder-wrapper .arrow i {
  margin-right: 0;
}

.builder-wrapper .has-submenu:hover .arrow {
  transform: rotate(90deg);
  color: var(--color-context-icon);
}

/* Submenu */
.builder-wrapper .submenu {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transform: scaleY(0);
  transform-origin: top;
  transition: max-height 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
  background: rgba(0, 0, 0, 0.2);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  margin: 4px 0;
  margin-left: 20px;
}

.builder-wrapper .has-submenu:hover .submenu {
  max-height: 320px;
  opacity: 1;
  transform: scaleY(1);
}

.builder-wrapper .context-menu li,
.builder-wrapper .submenu li {
  transition: background 0.2s ease, transform 0.2s ease;
}


.builder-wrapper .submenu li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  margin: 2px 6px;
  font-size: 14px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.builder-wrapper .submenu li:hover {
  background: rgba(52, 152, 219, 0.3);
  transform: translateX(4px);
}

.builder-wrapper .submenu .icon {
  color: var(--color-context-icon);
}

.builder-wrapper .builder-modal.hidden,
.builder-wrapper .builder-field.hidden,
.builder-wrapper .builder-field-stack.hidden {
  display: none;
}

.builder-wrapper .builder-modal {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.builder-wrapper .builder-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.56);
  backdrop-filter: blur(3px);
}

.builder-wrapper .builder-modal__dialog {
  position: relative;
  width: min(560px, 100%);
  background: #ffffff;
  color: #111827;
  border: 1px solid rgba(148, 163, 184, 0.5);
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.35);
  overflow: hidden;
}

.builder-wrapper .builder-modal__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px 14px;
  border-bottom: 1px solid #e5e7eb;
  background: #f8fafc;
}

.builder-wrapper .builder-modal__kicker {
  color: #64748b;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.builder-wrapper .builder-modal__header h3 {
  margin: 3px 0 0;
  color: #111827;
  font-size: 18px;
  line-height: 1.25;
}

.builder-wrapper .builder-modal__icon-btn {
  width: 34px;
  height: 34px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #ffffff;
  color: #334155;
  cursor: pointer;
}

.builder-wrapper .builder-modal__icon-btn:hover {
  background: #f1f5f9;
}

.builder-wrapper .builder-modal__body {
  padding: 18px 20px 20px;
}

.builder-wrapper .builder-modal__target {
  margin-bottom: 16px;
  padding: 10px 12px;
  border: 1px solid #e5e7eb;
  border-left: 3px solid #2563eb;
  border-radius: 6px;
  background: #f8fafc;
  color: #334155;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.builder-wrapper .builder-field-stack {
  display: grid;
  gap: 14px;
}

.builder-wrapper .builder-field {
  display: grid;
  gap: 7px;
}

.builder-wrapper .builder-field label {
  color: #334155;
  font-size: 13px;
  font-weight: 700;
}

.builder-wrapper .builder-field input,
.builder-wrapper .builder-field textarea {
  width: 100%;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  background: #ffffff;
  color: #111827;
  font: 14px/1.45 "Segoe UI", Roboto, Arial, sans-serif;
  padding: 10px 12px;
  outline: none;
}

.builder-wrapper .builder-field textarea {
  resize: vertical;
  min-height: 120px;
}

.builder-wrapper .builder-field input:focus,
.builder-wrapper .builder-field textarea:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.builder-wrapper .builder-modal__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-top: 1px solid #e5e7eb;
  background: #f8fafc;
}

.builder-wrapper .builder-modal__footer-actions {
  display: inline-flex;
  gap: 8px;
}

.builder-wrapper .builder-modal__btn {
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 9px 13px;
  font-size: 13px !important;
  font-weight: 700 !important;
  cursor: pointer;
}

.builder-wrapper .builder-modal__btn--primary {
  background: #2563eb;
  color: #ffffff;
}

.builder-wrapper .builder-modal__btn--primary:hover {
  background: #087066;
}

.builder-wrapper .builder-modal__btn--secondary {
  border-color: #cbd5e1;
  background: #ffffff;
  color: #334155;
}

.builder-wrapper .builder-modal__btn--secondary:hover {
  background: #f1f5f9;
}

.builder-wrapper .builder-modal__btn--ghost {
  background: transparent;
  color: #b91c1c;
}

.builder-wrapper .builder-modal__btn--ghost:hover:not(:disabled) {
  background: #fee2e2;
}

.builder-wrapper .builder-modal__btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* View Options Dropdown */
.builder-wrapper .view-options {
  position: static; /* avoid creating an overlay stacking context */
  display: flex;
  align-items: center;
  z-index: auto;
}

.builder-wrapper .view-dropdown {
  display: flex;
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  background: linear-gradient(135deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  border: none;
  border-radius: var(--radius-xl);
  padding: var(--spacing-md);
  box-shadow: 0 12px 32px rgba(115, 115, 115, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.2);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-10px);
  flex-direction: column;
  gap: var(--spacing-sm);
  z-index: var(--z-index-dropdown);
  min-width: 180px;
  transition: opacity var(--transition-slow), visibility var(--transition-slow), transform var(--transition-slow) cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Bridge the gap between button and dropdown */
.builder-wrapper .view-dropdown::before {
  content: '';
  position: absolute;
  top: -10px;
  left: 0;
  right: 0;
  height: 10px;
  background: transparent;
}

.builder-wrapper .view-options:hover .view-dropdown,
.builder-wrapper .view-dropdown:hover,
.builder-wrapper .view-options:focus-within .view-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
  animation: dropdownBounce 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes dropdownBounce {
  0% {
    opacity: 0;
    transform: translateY(-15px) scale(0.9);
  }
  60% {
    transform: translateY(2px) scale(1.02);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.builder-wrapper .view-dropdown button {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  outline: none;
  color: var(--color-text-white);
  padding: 0.6rem var(--spacing-lg);
  text-align: left;
  cursor: pointer;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  font-size: var(--font-size-sm);
  white-space: nowrap;
  box-shadow: none;
  font-weight: 500;
}

.builder-wrapper .view-dropdown button:hover {
  background: rgba(255, 255, 255, 0.25);
  color: var(--color-text-white);
  transform: translateX(6px) scale(1.03);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.builder-wrapper .view-dropdown button:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
}

/* Tree View Styles */
.builder-wrapper .tree-wrapper {
  display: flex;
  flex-direction: column;
  overflow: auto;
  position: relative;
  background: var(--color-bg-light);
  border-radius: var(--radius-lg);
  padding: 20px;
  flex: 1;
  min-height: 0;
  height: 100%;
  border: 2px dashed var(--color-border-primary);
}

.builder-wrapper .tree-help {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--color-tree-help-start) 0%, var(--color-tree-help-end) 100%);
  color: var(--color-text-white);
  padding: 10px 16px;
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  font-size: 13px;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
  animation: slideDown 0.4s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.builder-wrapper .tree-help .help-icon {
  font-size: 18px;
}

.builder-wrapper .tree-help .help-text {
  font-weight: 500;
}

.builder-wrapper .tree-wrapper.hidden {
  display: none !important;
}

.builder-wrapper .canvas-wrapper.hidden {
  display: none !important;
}

.builder-wrapper .tree-container {
  width: 100%;
  height: 100%;
}

.builder-wrapper #tree {
  width: 100%;
  height: 100%;
  min-height: 600px;
}

.builder-wrapper node {
  cursor: pointer;
  user-select: none;
}

.builder-wrapper .node rect {
  stroke-width: 2px;
  transition: all 0.3s ease;
  rx: 8;
  ry: 8;
  filter: drop-shadow(0 4px 12px rgba(243, 115, 53, 0.3));
}

.builder-wrapper .node text {
  font-size: 12px;
  fill: #ffffff;
  font-weight: normal !important;
  pointer-events: none;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.builder-wrapper .node.has-annotations rect {
  stroke: rgba(255, 255, 255, 0.7);
  stroke-width: 3px;
}

.builder-wrapper .tree-annotation-indicators {
  pointer-events: none;
}

.builder-wrapper .tree-annotation-indicator {
  text-shadow: none;
}

.builder-wrapper .tree-annotation-indicator circle {
  stroke: rgba(255, 255, 255, 0.85);
  stroke-width: 1.5px;
}

.builder-wrapper .tree-annotation-indicator text {
  fill: #ffffff;
  font-size: 8px;
  font-weight: 800;
  dominant-baseline: middle;
  text-shadow: none;
}

.builder-wrapper .tree-annotation-indicator--comment circle {
  fill: #4b5563;
}

.builder-wrapper .tree-annotation-indicator--url circle {
  fill: #2563eb;
}

/* Style for empty sequence blocks in tree view */
.builder-wrapper .node.sequence.empty-sequence rect {
  fill: url(#emptyGradient);
  stroke: rgba(255, 255, 255, 0.5);
  stroke-width: 3px;
  filter: drop-shadow(0 0 12px rgba(115, 115, 115, 0.6));
  animation: emptyNodePulse 2s ease-in-out infinite;
}

.builder-wrapper .node.sequence.empty-sequence text {
  fill: #ffffff;
  font-weight: normal !important;
  font-style: italic;
}

.builder-wrapper .node.quality-warning rect {
  fill: #b91c1c;
  stroke: #fecaca;
  stroke-width: 3px;
  filter: drop-shadow(0 0 12px rgba(185, 28, 28, .38));
}

.builder-wrapper .node.quality-warning-empty-branch rect,
.builder-wrapper .node.warning rect {
  fill: #b91c1c;
  stroke: #fecaca;
}

.builder-wrapper .node.quality-warning-unclear rect {
  fill: #b91c1c;
  stroke: #fecaca;
}

.builder-wrapper .node.quality-warning text,
.builder-wrapper .node.warning text {
  fill: #ffffff;
  font-weight: 800 !important;
}

@keyframes emptyNodePulse {
  0%, 100% {
    filter: drop-shadow(0 0 8px rgba(243, 115, 53, 0.3));
  }
  50% {
    filter: drop-shadow(0 0 12px rgba(115, 115, 115, 0.6));
  }
}

.builder-wrapper .node.sequence rect {
  fill: var(--color-sequence-bg);
  stroke: var(--color-sequence-border);
}

.builder-wrapper .node.module_call rect {
  fill: var(--color-module-bg);
  stroke: var(--color-module-border);
}

.builder-wrapper .node.requirement_link rect {
  fill: var(--color-link-bg);
  stroke: var(--color-link-border);
}

.builder-wrapper .node.action rect {
  fill: var(--color-action-bg);
  stroke: var(--color-action-border);
}

.builder-wrapper .node.comment rect {
  fill: var(--color-comment-bg);
  stroke: var(--color-comment-border);
}

.builder-wrapper .node.external_url rect {
  fill: var(--color-url-bg);
  stroke: var(--color-url-border);
}

.builder-wrapper .node.test_hint rect {
  fill: var(--color-test-hint-bg);
  stroke: var(--color-test-hint-border);
}

.builder-wrapper .node.condition rect {
  fill: var(--color-condition-start);
  stroke: rgba(198, 71, 25, 0.7);
}

.builder-wrapper .node.root rect {
  fill: url(#rootGradient);
  stroke: rgba(255, 255, 255, 0.3);
}

.builder-wrapper .node.quality-warning rect,
.builder-wrapper .node.warning rect,
.builder-wrapper .node.quality-warning-empty-branch rect,
.builder-wrapper .node.quality-warning-unclear rect {
  fill: #b91c1c;
  stroke: #fecaca;
  stroke-width: 3px;
  filter: drop-shadow(0 0 12px rgba(185, 28, 28, .38));
}

.builder-wrapper .link-label.then {
  fill: var(--color-tree-link-then);
}

.builder-wrapper .link-label.else {
  fill: var(--color-tree-link-else);
}

/* Removed hover animations for performance */
/* .node:hover rect {
  stroke-width: 3px;
  filter: drop-shadow(0 6px 16px rgba(243, 115, 53, 0.5));
  transform: translateY(-2px);
} */

/* Tree Tooltip */
.builder-wrapper .tree-tooltip {
  position: fixed;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 10000;
  max-width: 300px;
  white-space: pre-line;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.builder-wrapper .tree-tooltip.show {
  opacity: 1;
}

.builder-wrapper .link {
  fill: none;
  stroke: var(--color-tree-link-stroke);
  stroke-width: 2px;
}

.builder-wrapper .link-then {
  stroke: var(--color-tree-link-then);
  opacity: 0.4;
}

.builder-wrapper .link-else {
  stroke: var(--color-tree-link-else);
  opacity: 0.4;
}

/* Tree Context Menu */
.builder-wrapper .tree-context-menu {
  background: linear-gradient(145deg, var(--color-context-bg-start), var(--color-context-bg-end));
  border: 1px solid var(--color-context-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  padding: 4px;
  z-index: var(--z-index-header);
  min-width: 200px;
  animation: menuFadeIn 0.15s ease-out;
}

@keyframes menuFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.builder-wrapper .tree-context-menu .menu-item {
  padding: 10px 16px;
  cursor: pointer;
  color: var(--color-text-light);
  border-radius: 4px;
  transition: all var(--transition-normal);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.builder-wrapper .tree-context-menu .menu-item:hover {
  background: rgba(52, 152, 219, 0.3);
  transform: translateX(4px);
}

.builder-wrapper .tree-context-menu .menu-item.delete:hover {
  background: rgba(231, 76, 60, 0.3);
  color: #e74c3c;
}

.builder-wrapper .tree-context-menu .menu-section-title {
  padding: 8px 16px 4px 16px;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-context-icon);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.builder-wrapper .tree-context-menu .menu-separator {
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 4px 8px;
}

/* Interactive node visual feedback */
.builder-wrapper .node:not(.root) {
  cursor: pointer;
}

.builder-wrapper .node:not(.root) rect {
  filter: brightness(1);
  transition: all 0.3s;
}

/* Removed hover animations for performance */
/* .node:not(.root):hover rect {
  filter: brightness(1.1) drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
  stroke-width: 3px;
} */

/* Requirement picker final overrides
   The picker can be moved into .builder-wrapper during browser fullscreen, where broad
   builder button rules would otherwise recolor every result row. Keep this dialog quiet. */
#requirementPicker.requirement-picker,
.builder-wrapper #requirementPicker.requirement-picker {
  background: rgba(248, 250, 252, 0.82) !important;
  backdrop-filter: blur(2px);
}

#requirementPicker .requirement-picker__panel,
.builder-wrapper #requirementPicker .requirement-picker__panel {
  background: #ffffff !important;
  color: #1f2937 !important;
  border: 1px solid #d7dee8 !important;
  border-radius: 8px !important;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.16) !important;
}

#requirementPicker .requirement-picker__header,
.builder-wrapper #requirementPicker .requirement-picker__header {
  background: #f8fafc !important;
  border-bottom: 1px solid #e5e7eb !important;
}

#requirementPicker .requirement-picker__search,
.builder-wrapper #requirementPicker .requirement-picker__search {
  background: #ffffff !important;
  color: #111827 !important;
  border: 1px solid #d1d5db !important;
  box-shadow: none !important;
}

#requirementPicker .requirement-picker__search:focus,
.builder-wrapper #requirementPicker .requirement-picker__search:focus {
  border-color: #2563eb !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12) !important;
}

#requirementPicker button.requirement-picker__item,
.builder-wrapper #requirementPicker button.requirement-picker__item,
.builder-wrapper #requirementPicker button.requirement-picker__item:not(.btn) {
  background: #ffffff !important;
  background-image: none !important;
  color: #1f2937 !important;
  border: 1px solid #dbe2ea !important;
  border-radius: 6px !important;
  box-shadow: none !important;
  transform: none !important;
  text-shadow: none !important;
}

#requirementPicker button.requirement-picker__item:hover,
#requirementPicker button.requirement-picker__item:focus,
.builder-wrapper #requirementPicker button.requirement-picker__item:hover,
.builder-wrapper #requirementPicker button.requirement-picker__item:focus {
  background: #f8fafc !important;
  background-image: none !important;
  color: #1f2937 !important;
  border-color: #9db4d0 !important;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06) !important;
  transform: none !important;
}

#requirementPicker .requirement-picker__ref,
.builder-wrapper #requirementPicker .requirement-picker__ref {
  color: #1f4c6c !important;
}

#requirementPicker .requirement-picker__title,
.builder-wrapper #requirementPicker .requirement-picker__title {
  color: #111827 !important;
}

#requirementPicker .requirement-picker__meta,
#requirementPicker .requirement-picker__empty,
.builder-wrapper #requirementPicker .requirement-picker__meta,
.builder-wrapper #requirementPicker .requirement-picker__empty {
  color: #6b7280 !important;
}

#requirementPicker button.requirement-picker__close,
.builder-wrapper #requirementPicker button.requirement-picker__close {
  background: #ffffff !important;
  background-image: none !important;
  color: #374151 !important;
  border: 1px solid #d1d5db !important;
  box-shadow: none !important;
  transform: none !important;
}

#requirementPicker button.requirement-picker__close:hover,
#requirementPicker button.requirement-picker__close:focus,
.builder-wrapper #requirementPicker button.requirement-picker__close:hover,
.builder-wrapper #requirementPicker button.requirement-picker__close:focus {
  background: #f3f4f6 !important;
  background-image: none !important;
  color: #374151 !important;
  box-shadow: none !important;
  transform: none !important;
}

/* Step 2 visual refinement
   Keep the builder calm and work-focused. These overrides intentionally sit at
   the end of the file so older gradient/button rules cannot leak through. */
.builder-wrapper {
  --color-primary-start: #ffffff;
  --color-primary-end: #ffffff;
  --color-primary-hover-start: #f1f5f9;
  --color-primary-hover-end: #e2e8f0;
  --color-primary-rgb: 37, 99, 235;
  --color-border-primary: #dbe4ef;
  --color-border-primary-strong: #b8c7da;
  --color-bg-light: #f8fafc;
  --color-bg-lighter: #f1f5f9;
  --color-text-primary: #172033;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;
  --color-sequence-bg: #64748b;
  --color-sequence-border: #475569;
  --color-condition-start: #d9903d;
  --color-condition-end: #c77822;
  --color-module-bg: #2f6f9f;
  --color-module-border: #24587f;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 1px 3px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.12);
  --shadow-xl: 0 10px 26px rgba(15, 23, 42, 0.10);
}

.builder-wrapper header {
  background: #ffffff !important;
  color: #172033 !important;
  border: 1px solid #dbe4ef !important;
  border-radius: 8px !important;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08) !important;
  transform: none !important;
}

.builder-wrapper .header-label {
  color: #64748b !important;
  font-weight: 700 !important;
}

.builder-wrapper .header-sidebar-controls,
.builder-wrapper .zoom-controls {
  gap: 8px !important;
}

.builder-wrapper .block,
.builder-wrapper .header-sidebar-controls button,
.builder-wrapper .zoom-controls button,
.builder-wrapper .view-options > button {
  background: #ffffff !important;
  background-image: none !important;
  color: #334155 !important;
  border: 1px solid #d7dee8 !important;
  border-radius: 6px !important;
  box-shadow: none !important;
  text-shadow: none !important;
  transform: none !important;
  letter-spacing: 0 !important;
}

.builder-wrapper .block:hover,
.builder-wrapper .header-sidebar-controls button:hover,
.builder-wrapper .zoom-controls button:hover,
.builder-wrapper .view-options > button:hover {
  background: #f8fafc !important;
  background-image: none !important;
  color: #172033 !important;
  border-color: #b8c7da !important;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06) !important;
  transform: none !important;
}

.builder-wrapper .zoom-controls .btn-outline,
.builder-wrapper .zoom-controls button[onclick*="saveRequirement"] {
  background: #2563eb !important;
  color: #ffffff !important;
  border-color: #2563eb !important;
}

.builder-wrapper .zoom-controls .btn-outline:hover,
.builder-wrapper .zoom-controls button[onclick*="saveRequirement"]:hover {
  background: #087066 !important;
  color: #ffffff !important;
  border-color: #087066 !important;
}

.builder-wrapper .canvas-wrapper {
  background: #f8fafc !important;
  border: 1px solid #dbe4ef !important;
  border-radius: 8px !important;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.03) !important;
}

.builder-wrapper .tree-wrapper,
.builder-wrapper .tree-container {
  background: #f8fafc !important;
  border-color: #dbe4ef !important;
}

.builder-wrapper .canvas .placeholder {
  background: #ffffff !important;
  border: 1px dashed #cbd5e1 !important;
  color: #64748b !important;
  border-radius: 8px !important;
}

.builder-wrapper .canvas .item {
  box-shadow: none !important;
  text-shadow: none !important;
  border-radius: 5px !important;
}

.builder-wrapper .condition-block {
  box-shadow: none !important;
  border-radius: 5px !important;
}

.builder-wrapper .condition-label,
.builder-wrapper .branch-label,
.builder-wrapper .item {
  letter-spacing: 0 !important;
  text-shadow: none !important;
}

.builder-wrapper .xcontainer.vertical-layout {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  min-width: 0;
  min-height: 640px;
  height: max(640px, calc(100vh - 250px));
  overflow: hidden;
}

.builder-wrapper.fullscreen-wrapper {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  min-width: 0;
  min-height: 0;
  padding: 1rem;
  overflow: hidden;
  background: #fff;
}

.builder-wrapper.fullscreen-wrapper .xcontainer.vertical-layout {
  flex: 1;
  height: auto;
  min-height: 0;
}

.builder-wrapper .references-panel.hidden {
  display: none !important;
}

.builder-wrapper .references-panel {
  position: fixed;
  top: 96px;
  right: 24px;
  width: min(420px, calc(100vw - 48px));
  max-height: calc(100vh - 128px);
  display: flex;
  flex-direction: column;
  background: #ffffff;
  color: #172033;
  border: 1px solid #d7dee8;
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.16);
  z-index: 2147482500;
  overflow: hidden;
}

.builder-wrapper:fullscreen .references-panel,
.builder-wrapper.fullscreen-wrapper .references-panel {
  top: 82px;
  right: 18px;
  max-height: calc(100vh - 104px);
}

.builder-wrapper .references-panel__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  background: #f8fafc;
  border-bottom: 1px solid #e5e7eb;
}

.builder-wrapper .references-panel__kicker {
  color: #64748b;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.builder-wrapper .references-panel__header h3 {
  margin: 2px 0 0;
  color: #111827;
  font-size: 17px;
}

.builder-wrapper .references-panel__close,
.builder-wrapper .references-panel__tabs button,
.builder-wrapper .references-panel__item-side button {
  background: #ffffff !important;
  background-image: none !important;
  color: #334155 !important;
  border: 1px solid #d1d5db !important;
  border-radius: 6px !important;
  box-shadow: none !important;
  transform: none !important;
}

.builder-wrapper .references-panel__close:hover,
.builder-wrapper .references-panel__tabs button:hover,
.builder-wrapper .references-panel__item-side button:hover {
  background: #f3f4f6 !important;
}

.builder-wrapper .references-panel__tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 12px 18px 8px;
}

.builder-wrapper .references-panel__tabs button {
  padding: 8px 10px !important;
  font-size: 13px !important;
}

.builder-wrapper .references-panel__tabs button.active {
  background: #eaf2ff !important;
  border-color: #9db4d0 !important;
  color: #1f4c6c !important;
}

.builder-wrapper .references-panel__body {
  overflow: auto;
  padding: 8px 18px 18px;
}

.builder-wrapper .references-panel__section {
  display: none;
}

.builder-wrapper .references-panel__section.active {
  display: grid;
  gap: 8px;
}

.builder-wrapper .references-panel__item,
.builder-wrapper .references-panel__issue,
.builder-wrapper .references-panel__empty {
  border: 1px solid #dbe2ea;
  border-radius: 8px;
  background: #ffffff;
  padding: 11px 12px;
}

.builder-wrapper .references-panel__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.builder-wrapper .references-panel__item--clickable {
  cursor: pointer;
}

.builder-wrapper .references-panel__item--clickable:hover,
.builder-wrapper .references-panel__item--clickable:focus {
  background: #f8fafc;
  border-color: #9db4d0;
  outline: none;
}

.builder-wrapper .references-panel__item-main {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.builder-wrapper .references-panel__label {
  color: #111827;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.builder-wrapper .references-panel__meta {
  color: #64748b;
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.builder-wrapper .references-panel__item-side {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.builder-wrapper .references-panel__status {
  color: #64748b;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}

.builder-wrapper .references-panel__item-side button {
  padding: 6px 9px !important;
  font-size: 12px !important;
}

.builder-wrapper .references-panel__issue {
  display: grid;
  gap: 4px;
  border-color: #f0c9c9;
  background: #fffafa;
}

.builder-wrapper .references-panel__issue span,
.builder-wrapper .references-panel__empty {
  color: #64748b;
  font-size: 13px;
}

/* Keep branch markers CSS-drawn. Unicode icon pseudo-content can render as mojibake. */
.builder-wrapper .branch-label.true::before,
.builder-wrapper .branch-label.false::before {
  content: "" !important;
  display: inline-block;
  width: 18px;
  height: 18px;
  margin-right: 8px !important;
  vertical-align: -4px;
  background-color: currentColor;
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
}

.builder-wrapper .branch-label.true {
  color: #0f9f6e !important;
}

.builder-wrapper .branch-label.false {
  color: #dc2626 !important;
}

.builder-wrapper .branch-label.true::before {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M7.8 15.2 2.6 10l2.1-2.1 3.1 3.1 7.5-7.5 2.1 2.1z'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='M7.8 15.2 2.6 10l2.1-2.1 3.1 3.1 7.5-7.5 2.1 2.1z'/%3E%3C/svg%3E");
}

.builder-wrapper .branch-label.false::before {
  mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='m5 2.9 5 5 5-5 2.1 2.1-5 5 5 5-2.1 2.1-5-5-5 5L2.9 15l5-5-5-5z'/%3E%3C/svg%3E");
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill='black' d='m5 2.9 5 5 5-5 2.1 2.1-5 5 5 5-2.1 2.1-5-5-5 5L2.9 15l5-5-5-5z'/%3E%3C/svg%3E");
}

.builder-wrapper .branch-label,
.builder-wrapper .link-label {
  font-family: Arial, Helvetica, sans-serif !important;
}