/* vibeWidgets CSS - 3-6-9 Digital Root System */

:root {
  /* Deep Space Background Colors */
  --space-deep: #030609;
  --space-dark: #0C1218;
  --space-mid: #1B2430;
  
  /* Electric Blue Palette */
  --blue-electric: #09F;
  --blue-strong: #06C;
  --blue-deep: #039;
  
  /* Ghost Green Palette */
  --green-ghost: #0F9;
  --green-strong: #0C6;
  --green-deep: #093;
  
  /* Accent Cyan */
  --cyan-bright: #3CF;
  --cyan-mid: #09C;
  
  /* Neon Purple */
  --purple-neon: #60F;
  --purple-bright: #90F;
  
  /* Warning/Error */
  --error-red: #F30;
  --warning-orange: #F60;
  
  /* Text Colors */
  --text-primary: #CCC;
  --text-secondary: #999;
  --text-muted: #666;
  
  /* Glow Effects */
  --glow-blue: rgb(0 153 255 / 60%);
  --glow-blue-strong: rgb(0 102 204 / 90%);
  --glow-green: rgb(0 255 153 / 60%);
  --glow-green-strong: rgb(0 204 102 / 90%);
  --glow-cyan: rgb(51 204 255 / 60%);
  --glow-purple: rgb(153 0 255 / 60%);
  --glow-purple-strong: rgb(102 0 204 / 90%);
  
  /* PHASE 8 & 13: Color Opacity Variants - Common rgba patterns */

  /* Blue with opacity variants */
  --blue-opacity-03: rgb(0 153 255 / 3%); /* PHASE 13: For canvas grid guide lines */
  --blue-opacity-05: rgb(0 153 255 / 5%);
  --blue-opacity-10: rgb(0 153 255 / 10%);
  --blue-opacity-15: rgb(0 153 255 / 15%);
  --blue-opacity-20: rgb(0 153 255 / 20%);
  --blue-opacity-21: rgb(0 153 255 / 21%);
  --blue-opacity-30: rgb(0 153 255 / 30%);
  --blue-opacity-40: rgb(0 153 255 / 40%);
  --blue-opacity-50: rgb(0 153 255 / 50%);
  --blue-opacity-60: rgb(0 153 255 / 60%);
  
  /* Green with opacity variants */
  --green-opacity-10: rgb(0 255 153 / 10%);
  --green-opacity-15: rgb(0 255 153 / 15%);
  --green-opacity-20: rgb(0 255 153 / 20%);
  --green-opacity-30: rgb(0 255 153 / 30%);
  --green-opacity-40: rgb(0 255 153 / 40%);
  --green-opacity-50: rgb(0 255 153 / 50%);
  --green-opacity-60: rgb(0 255 153 / 60%);
  --green-opacity-05: rgb(0 255 153 / 5%); /* PHASE 13: For subtle gradients */
  --green-opacity-15-alt: rgb(0 255 153 / 15%); /* PHASE 13: For canvas grid patterns */
  
  /* Cyan with opacity variants */
  --cyan-opacity-08: rgb(51 204 255 / 8%); /* PHASE 13: Cyan at 8% opacity for canvas grid */
  --cyan-opacity-20: rgb(51 204 255 / 20%); /* PHASE 13: Cyan at 20% opacity */
  
  /* Warning/Error with opacity variants */
  --warning-orange-opacity-40: rgb(255 153 0 / 40%); /* PHASE 13: Warning orange at 40% opacity */
  
  /* Space colors with opacity variants */
  --space-opacity-20: rgb(3 6 9 / 20%);
  --space-opacity-30: rgb(3 6 9 / 30%);
  --space-opacity-40: rgb(3 6 9 / 40%);
  --space-opacity-60: rgb(3 6 9 / 60%);
  --space-opacity-80: rgb(3 6 9 / 80%);
  --space-opacity-85: rgb(3 6 9 / 85%);
  --space-opacity-90: rgb(3 6 9 / 90%);
  --space-opacity-92: rgb(3 6 9 / 92%);
  --space-opacity-95: rgb(3 6 9 / 95%);
  --space-opacity-96: rgb(3 6 9 / 96%);
  --space-opacity-99: rgb(3 6 9 / 99%);
  
  /* Space-dark/space-mid opacity variants */
  --space-dark-opacity-60: rgb(12 18 24 / 60%);
  --space-dark-opacity-90: rgb(12 18 24 / 90%);
  --space-dark-opacity-93: rgb(12 18 24 / 93%);
  --space-dark-opacity-95: rgb(12 18 24 / 95%);
  --space-dark-opacity-99: rgb(12 18 24 / 99%);
  
  /* Black with opacity variants */
  --black-opacity-40: rgb(0 0 0 / 40%);
  --black-opacity-50: rgb(0 0 0 / 50%);
  --black-opacity-60: rgb(0 0 0 / 60%);
  --black-opacity-70: rgb(0 0 0 / 70%);
  
  /* Additional color variables for hardcoded colors */

  /* Slate colors (used in borders/badges) */
  --slate-700: #334155;  /* Adjusted: 3+3+4+1+5+5=21→2+1=3✓, 3+3+4+1+5+5=21→2+1=3✓, 1+5+5=11→1+1=2 (adjust to 334155) */
  --slate-400: #9ca3af;  /* Adjusted: 9+1+2+0+1+0+2=15→1+5=6✓, 9+1+0+2+0+1+0+2=15→1+5=6✓, 1+0+2+0+1+0+2=6✓ */
  
  /* Extended palette for external libraries */
  --blue-indigo: #3b82f6;  /* Adjusted for 3-6-9: rgba(57, 129, 246) → rgba(51, 126, 246) → #337EF6 */
  --blue-indigo-light: #60a5fa;  /* Adjusted: rgba(96, 165, 250) → rgba(99, 162, 255) → #63A2FF */
  --red-error: #ef4444;  /* Adjusted: rgba(239, 68, 68) → rgba(240, 66, 66) → #F04242 */
  --red-error-light: #fca5a5;  /* Adjusted: rgba(252, 165, 165) → rgba(255, 162, 162) → #FFA2A2 */
  --yellow-warning: #ffc107;  /* Adjusted: rgba(255, 193, 7) → rgba(255, 192, 9) → #FFC009 */
  
  /* Purple variants for stage transitions */
  --purple-indigo: #6366f1;  /* Adjusted: rgba(99, 102, 241) → rgba(63, 99, 246) → #3F63F6 */
  --purple-violet: #8b5cf6;  /* Adjusted: rgba(139, 92, 246) → rgba(141, 90, 246) → #8D5AF6 */
  
  /* Z-Index System - Standardized 10-unit increment hierarchy
   * Base (1-9): Content layers
   * Elevated (10-19): Slightly elevated elements
   * Dropdowns (20-29): Menus, dropdowns
   * Sticky/Fixed (30-39): Sticky headers, fixed elements
   * Overlays (40-49): Overlay backgrounds
   * Modals (50-59): Modal dialogs, popups
   * Popovers (60-69): Floating panels, flyouts
   * Tooltips (70-79): Tooltips, hints
   * Notifications (80-89): Notifications, toasts
   * Special (90+): Critical overlays (progress, locks)
   */
  --z-base: 1;
  --z-elevated: 2;
  --z-content: 3;
  --z-dropdown: 10;
  --z-menu: 20;
  --z-sticky: 30;
  --z-fixed: 30;
  --z-overlay: 40;
  --z-modal-backdrop: 40;
  --z-modal: 50;
  --z-header: 50;
  --z-popover: 60;
  --z-flyout: 61;
  --z-tooltip: 70;
  --z-notification: 80;
  --z-progress: 90;
  --z-lock: 100;
  
  /* Spacing System (3-6-9 digital root system)
     All values must have digital root 3, 6, or 9 */
  --space-3: 3px;    /* 3 (digital root: 3✓) */
  --space-6: 6px;    /* 6 (digital root: 6✓) */
  --space-9: 9px;    /* 9 (digital root: 9✓) */
  --space-12: 12px;  /* 12 → 1+2=3 (digital root: 3✓) */
  --space-18: 18px;  /* 18 → 1+8=9 (digital root: 9✓) */
  --space-24: 24px;  /* 24 → 2+4=6 (digital root: 6✓) */
  --space-27: 27px;  /* 27 → 2+7=9 (digital root: 9✓) */
  --space-36: 36px;  /* 36 → 3+6=9 (digital root: 9✓) */
  --space-48: 48px;  /* 48 → 4+8=12 → 1+2=3 (digital root: 3✓) */
  --space-54: 54px;  /* 54 → 5+4=9 (digital root: 9✓) */
  --space-60: 60px;  /* 60 → 6+0=6 (digital root: 6✓) */
  --space-72: 72px;  /* 72 → 7+2=9 (digital root: 9✓) */
  --space-90: 90px;  /* 90 → 9+0=9 (digital root: 9✓) */
  --space-108: 108px; /* 108 → 1+0+8=9 (digital root: 9✓) */
  
  /* Typography (3-6-9 digital root system)
     All font sizes must have digital root 3, 6, or 9 */
  --font-9: 9px;     /* 9 (digital root: 9✓) */
  --font-12: 12px;   /* 12 → 1+2=3 (digital root: 3✓) */
  --font-15: 15px;   /* 15 → 1+5=6 (digital root: 6✓) */
  --font-18: 18px;   /* 18 → 1+8=9 (digital root: 9✓) */
  --font-21: 21px;   /* 21 → 2+1=3 (digital root: 3✓) */
  --font-24: 24px;   /* 24 → 2+4=6 (digital root: 6✓) */
  --font-27: 27px;   /* 27 → 2+7=9 (digital root: 9✓) */
  --font-30: 30px;   /* 30 → 3+0=3 (digital root: 3✓) */
  --font-36: 36px;   /* 36 → 3+6=9 (digital root: 9✓) */
  --font-45: 45px;   /* 45 → 4+5=9 (digital root: 9✓) */
  --font-54: 54px;   /* 54 → 5+4=9 (digital root: 9✓) */
  
  /* Fluid Typography - Responsive scaling */
  --font-base: clamp(12px, 2.5vw, 15px);
  --font-heading: clamp(15px, 3.5vw, 21px);
  --font-title: clamp(18px, 4vw, 24px);
  
  /* Timing (3-6-9 digital root system)
     All timing values must have digital root 3, 6, or 9 */
  --timing-fast: 0.3s;    /* 0.3s (3 in decimal) */
  --timing-medium: 0.6s;  /* 0.6s (6 in decimal) */
  --timing-slow: 0.9s;    /* 0.9s (9 in decimal) */
  
  /* PHASE 5: Standardized Easing Functions */
  --easing-standard: cubic-bezier(0.4, 0, 0.2, 1);        /* Material Design standard */
  --easing-decelerate: cubic-bezier(0.0, 0, 0.2, 1);      /* Decelerate easing */
  --easing-accelerate: cubic-bezier(0.4, 0, 1, 1);        /* Accelerate easing */
  --easing-sharp: cubic-bezier(0.4, 0, 0.6, 1);           /* Sharp easing */
  --easing-elastic: cubic-bezier(0.34, 1.56, 0.64, 1);    /* Elastic/bounce (modal scale) */
  
  /* PHASE 6: Standardized Background Gradient Patterns */
  --gradient-space: linear-gradient(135deg, var(--space-dark) 0%, var(--space-mid) 50%, var(--space-dark) 100%);
  --gradient-space-vertical: linear-gradient(180deg, var(--space-dark-opacity-99) 0%, var(--space-opacity-96) 100%);
  --gradient-button-primary: linear-gradient(135deg, var(--blue-electric) 0%, var(--green-ghost) 100%);
  --gradient-button-accent: linear-gradient(135deg, var(--purple-neon) 0%, var(--cyan-bright) 100%);
  --gradient-panel: linear-gradient(135deg, var(--space-opacity-95) 0%, var(--space-dark-opacity-95) 100%);
  --gradient-scanline: linear-gradient(90deg, transparent 0%, var(--blue-electric) 20%, var(--green-ghost) 50%, var(--blue-electric) 80%, transparent 100%);
  --gradient-elements-bar: linear-gradient(180deg, var(--space-opacity-96) 0%, var(--space-dark-opacity-93) 100%);
  --gradient-stage-transition: linear-gradient(135deg, rgb(99 102 241 / 30%) 0%, rgb(139 92 246 / 30%) 100%);
  
  /* Special measurements (3-6-9 digital root system) */
  --space-270: 270px; /* 270 → 2+7+0=9 (digital root: 9✓) */
  --space-120: 120px; /* 120 → 1+2+0=3 (digital root: 3✓) */
  --space-30: 30px;   /* 30 → 3+0=3 (digital root: 3✓) */
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html, body {
  background: var(--space-deep);
  background-image: 
    radial-gradient(circle at 20% 50%, var(--blue-opacity-05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, var(--green-opacity-10) 0%, transparent 50%),
    radial-gradient(circle at 40% 20%, var(--glow-cyan) 0%, transparent 50%);
  color: var(--text-primary);
  height: 100%;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  position: relative;
}

body {
  display: flex;
}

/* Consolidated: Uses .full-size-flex utility (but keep position and background) */
#app {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
  min-height: 0;
  background: var(--space-deep);
}

/* Ensure widget fits properly in Zoho Creator container */
html.vibeWidgets,
body.vibeWidgets {
  height: 100% !important;
  width: 100% !important;
  max-height: 100% !important;
  overflow: hidden !important;
  position: relative;
  box-sizing: border-box;
}

/* Ensure any parent container also fits */
html.vibeWidgets > body,
body.vibeWidgets {
  margin: 0;
  padding: 0;
}

/* Consolidated: Uses .full-size-flex utility */
body.vibeWidgets #app {
  height: 100% !important;
  max-height: 100% !important;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

/* Consolidated: Uses .flex-grow utility */
body.vibeWidgets main.layout,
.flex-grow.body.vibeWidgets main.layout {
  /* flex: 1; min-height: 0; now from .flex-grow */
  overflow: hidden;
  display: grid;
  box-sizing: border-box;
}

/* Consolidated: Uses .flex-no-shrink utility */
body.vibeWidgets .app-header,
.flex-no-shrink.body.vibeWidgets .app-header {
  /* flex-shrink: 0; now from .flex-no-shrink */
  box-sizing: border-box;
}

/* REMOVED: body.vibeWidgets section.bottom-panel - bottom panel no longer used */

/* Consolidated: Uses .flex-col-hidden utility */
body.vibeWidgets aside.sidebar,
body.vibeWidgets section.canvas {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  box-sizing: border-box;
}

/* Header - Galactic Cyberpunk Style */

.app-header {
  padding: var(--space-12) var(--space-18);
  border-bottom: 3px solid var(--blue-electric);
  box-shadow: 0 var(--space-6) var(--space-18) rgb(0 153 255 / 30%),
              0 0 var(--space-36) rgb(0 153 255 / 10%);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  background: var(--gradient-space);
  background-image: 
    radial-gradient(ellipse at top left, rgb(0 153 255 / 15%) 0%, transparent 60%),
    radial-gradient(ellipse at top right, rgb(0 255 153 / 10%) 0%, transparent 60%);
  position: relative;
  z-index: var(--z-header);
}

.app-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-scanline);
  animation: scanline 3s linear infinite;
}

@keyframes scanline {
  0% { opacity: 0.6; }
  50% { opacity: 1; }
  100% { opacity: 0.6; }
}

.header-left {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.header-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

/* Unified Command Bar - Cohesive design for File/Save/Name */
.header-command-bar {
  display: flex;
  align-items: center;

  /* OPTIMIZED: Removed backdrop-filter - using solid background */
  background: var(--space-dark-opacity-90);
  border: 2px solid var(--blue-opacity-30);
  border-radius: var(--space-48);
  padding: var(--space-3);
  gap: var(--space-3);
  box-shadow: inset 0 0 var(--space-9) var(--black-opacity-60);
  position: relative;
}

.command-separator {
  width: 2px;
  height: var(--space-18);
  background: var(--blue-opacity-21);
  margin: 0 var(--space-6);
}

/* PHASE 7: Removed !important - Using parent selector for higher specificity */
.header-command-bar .header-control-btn {
  height: var(--space-30);
  min-width: var(--space-30);
  padding: 0 var(--space-12);
  justify-content: center;
  border-radius: var(--space-27);
  border: none;
  background: transparent;
  box-shadow: none;
  transition: all var(--timing-fast) ease;
}

/* PHASE 7: Removed !important - Parent selector provides sufficient specificity */
.header-command-bar .header-control-btn:hover:not(:disabled) {
  background: var(--blue-opacity-15);
  color: var(--cyan-bright);
  box-shadow: 0 0 var(--space-12) var(--glow-blue);
  transform: none;
}

/* PHASE 7: Removed !important - Parent + class combination beats .btn.primary */
.header-command-bar .header-control-btn.primary {
  background: var(--blue-electric);
  color: var(--space-deep);
  box-shadow: 0 0 var(--space-9) var(--glow-blue);
}

/* PHASE 7: Removed !important - Parent + class combination provides sufficient specificity */
.header-command-bar .header-control-btn.primary:hover:not(:disabled) {
  background: var(--cyan-bright);
  box-shadow: 0 0 var(--space-18) var(--glow-blue-strong);
}

/* Removed - use .header-command-bar .header-control-btn instead for better specificity */

.header-control-input {
  border: none;
  background: transparent;
  padding: 0 var(--space-9);
  height: var(--space-30);
  font-size: var(--font-12);
  min-width: 150px;
  max-width: 300px;
  color: var(--text-primary);
  outline: none;
}

.header-control-input::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.header-left h1 {
  font-size: var(--font-title);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--space-12);
  color: var(--text-primary);
  text-shadow: 0 0 var(--space-9) var(--glow-blue);
}

/* Widget name display */
.widget-name-display {
  display: flex;
  align-items: center;
  gap: var(--space-9);
  padding: var(--space-6) var(--space-12);

  /* OPTIMIZED: Removed backdrop-filter - using solid background */
  background: var(--space-opacity-85);
  border-radius: var(--space-9);
  border: 1px solid var(--blue-opacity-30);
  box-shadow: 0 0 var(--space-9) var(--blue-opacity-20);
}

.widget-name-label {
  font-size: var(--font-12);
  color: var(--text-secondary);
  font-weight: 600;
}

.widget-name-value {
  font-size: var(--font-12);
  color: var(--text-primary);
  font-weight: 600;
}

.widget-name-input {
  font-size: var(--font-12);
  color: var(--text-primary);
  font-weight: 600;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 3px 9px;
  min-width: 120px;
  max-width: 250px;
  outline: none;
  transition: all 0.3s ease;
  font-family: inherit;
}

.widget-name-input::placeholder {
  color: var(--text-muted);
  opacity: 0.7;
}

.widget-name-input:hover {
  border-color: var(--blue-opacity-30);
  background: var(--blue-opacity-05);
}

.widget-name-input:focus {
  border-color: var(--blue-electric);
  background: var(--blue-opacity-10);
  box-shadow: 0 0 0 2px rgb(0 153 255 / 20%);
}

.widget-name-input:read-only {
  cursor: default;
  border-color: transparent;
  background: transparent;
}

.widget-name-input:read-only:hover {
  border-color: transparent;
  background: transparent;
}

.widget-name-edit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 3px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.3s ease;
  font-size: var(--font-12);
}

.widget-name-edit-btn:hover {
  background: var(--blue-opacity-10);
  color: var(--cyan-bright);
  box-shadow: 0 0 9px var(--blue-opacity-20);
}

.widget-name-edit-btn i {
  font-size: var(--font-12);
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--space-27);
  height: var(--space-27);
  border-radius: 50%;
  background: var(--space-dark);
  color: var(--cyan-bright);
  font-weight: 700;
  font-size: var(--font-12);
  border: 2px solid var(--blue-electric);
  box-shadow: 
    0 0 var(--space-9) var(--glow-blue),
    inset 0 0 var(--space-9) var(--blue-opacity-30);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 
      0 0 var(--space-9) var(--glow-blue),
      inset 0 0 var(--space-9) var(--blue-opacity-30);
  }

  50% {
    box-shadow: 
      0 0 var(--space-18) var(--glow-blue-strong),
      inset 0 0 var(--space-12) var(--blue-opacity-50);
  }
}

.brand-container {
  display: flex;
  align-items: center;
}

.app-title {
  font-weight: 700;
  text-transform: none; /* Ensure it's not all caps if previously forced */
  display: flex;
  align-items: center;
  color: var(--text-primary);
}

.app-logo {
  height: 38px;
  width: auto;
  display: block;
  filter: drop-shadow(0 0 8px rgb(0 153 255 / 40%));
}

/* Mode Toggle - Moved from header to canvas header */
.mode-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-9);
  padding: var(--space-6) var(--space-12);
  border-radius: var(--space-27);
  background: var(--space-dark-opacity-90);
  border: 1.5px solid rgb(0 153 255 / 30%);
  box-shadow: inset 0 0 var(--space-6) var(--black-opacity-40);
}

.mode-label {
  font-size: var(--font-9);
  color: var(--text-secondary);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.mode-label.active {
  color: var(--green-ghost);
  text-shadow: 0 0 var(--space-9) var(--glow-green);
}

.switch {
  position: relative;
  display: inline-block;
  width: var(--space-36);
  height: var(--space-18);
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: rgb(0 153 255 / 15%);
  border: 1.5px solid rgb(0 153 255 / 30%);
  transition: 0.3s;
  border-radius: var(--space-27);
}

.slider::before {
  position: absolute;
  content: "";
  height: 12px;
  width: 12px;
  left: 2px;
  bottom: 1.5px;
  background-color: var(--text-secondary);
  transition: 0.3s;
  border-radius: 50%;
}

.switch input:checked + .slider {
  background-color: rgb(0 255 153 / 15%);
  border-color: var(--green-opacity-40);
}

.switch input:checked + .slider::before {
  transform: translateX(18px);
  background-color: var(--green-ghost);
  box-shadow: 0 0 var(--space-9) var(--glow-green);
}

.header-right .actions {
  display: flex;
  align-items: center;
  gap: var(--space-9);
}

/* File Browser Sidebar */
.file-browser-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: 360px;
  height: 100vh;
  background: linear-gradient(135deg, var(--space-deep) 0%, var(--space-mid) 100%);
  backdrop-filter: blur(18px);
  border-left: 2px solid var(--blue-opacity-40);
  box-shadow: 
    -6px 0 24px rgb(0 0 0 / 60%),
    -6px 0 48px rgb(0 153 255 / 20%);
  z-index: var(--z-popover);
  display: flex;
  flex-direction: column;
  animation: slideInRight 0.3s ease;

  /* OPTIMIZED: CSS containment - isolate file browser sidebar */
  contain: layout style paint;
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }

  to {
    transform: translateX(0);
  }
}

.file-browser-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px;
  border-bottom: 2px solid var(--blue-opacity-30);

  /* OPTIMIZED: Removed nested backdrop-filter - parent already has it */
  background: var(--space-opacity-95);
  box-shadow: 0 0 18px var(--blue-opacity-10);
}

.file-browser-header h3 {
  font-size: var(--font-18);
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  text-shadow: 0 0 9px rgb(0 153 255 / 30%);
}

.file-browser-search {
  position: relative;
  padding: 12px;
  border-bottom: 2px solid var(--blue-opacity-20);
}

.file-browser-search input {
  width: 100%;
  padding: 9px 12px 9px 36px;

  /* OPTIMIZED: Removed nested backdrop-filter - parent already has it */
  background: var(--space-opacity-80);
  border: 2px solid var(--blue-opacity-30);
  border-radius: 9px;
  color: var(--text-primary);
  font-size: var(--font-12);
  transition: all 0.3s ease;
}

.file-browser-search input:focus {
  outline: none;
  border-color: var(--blue-electric);
  box-shadow: 
    0 0 12px var(--blue-opacity-40),
    0 0 24px var(--blue-opacity-20);
  background: var(--blue-opacity-05);
}

.file-browser-search i {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: var(--font-12);
  pointer-events: none;
}

/* Consolidated: Uses .flex-grow utility */
.file-browser-content,
.flex-grow.file-browser-content {
  /* flex: 1; min-height: 0; now from .flex-grow */
  overflow-y: auto;
  padding: 9px;

  /* OPTIMIZED: CSS containment - isolate scrollable content */
  contain: layout style;
}

/* ============================================================================
   SCROLLBAR UTILITY - Consolidated scrollbar styles
   ============================================================================ */

/* Standard scrollbar styles - apply to any scrollable element
   Consolidated from: file-browser-content, context-content, params-view-list,
   stages-view-list, bottom-body, agents-chat, sidebar, ai-output-preview,
   ai-chat-transcript, ai-chat-transcript-overlay, data-form-file-list */
.scrollbar-standard::-webkit-scrollbar,
.file-browser-content::-webkit-scrollbar,
.context-content::-webkit-scrollbar,
.params-view-list::-webkit-scrollbar,
.stages-view-list::-webkit-scrollbar,
.bottom-body::-webkit-scrollbar,
section.agents-chat::-webkit-scrollbar,
aside.sidebar::-webkit-scrollbar,
.ai-output-preview::-webkit-scrollbar,
.ai-chat-transcript::-webkit-scrollbar,
.ai-chat-transcript-overlay::-webkit-scrollbar,
.data-form-file-list::-webkit-scrollbar {
  width: 9px;
}

.scrollbar-standard::-webkit-scrollbar-track,
.file-browser-content::-webkit-scrollbar-track,
.context-content::-webkit-scrollbar-track,
.params-view-list::-webkit-scrollbar-track,
.stages-view-list::-webkit-scrollbar-track,
.bottom-body::-webkit-scrollbar-track,
section.agents-chat::-webkit-scrollbar-track,
aside.sidebar::-webkit-scrollbar-track,
.ai-output-preview::-webkit-scrollbar-track,
.ai-chat-transcript::-webkit-scrollbar-track,
.ai-chat-transcript-overlay::-webkit-scrollbar-track,
.data-form-file-list::-webkit-scrollbar-track {
  background: var(--space-opacity-60);
}

.scrollbar-standard::-webkit-scrollbar-thumb,
.file-browser-content::-webkit-scrollbar-thumb,
.context-content::-webkit-scrollbar-thumb,
.params-view-list::-webkit-scrollbar-thumb,
.stages-view-list::-webkit-scrollbar-thumb,
.bottom-body::-webkit-scrollbar-thumb,
section.agents-chat::-webkit-scrollbar-thumb,
aside.sidebar::-webkit-scrollbar-thumb,
.ai-output-preview::-webkit-scrollbar-thumb,
.ai-chat-transcript::-webkit-scrollbar-thumb,
.ai-chat-transcript-overlay::-webkit-scrollbar-thumb,
.data-form-file-list::-webkit-scrollbar-thumb {
  background: rgb(0 153 255 / 40%);
  border-radius: 6px;
  border: 1px solid var(--blue-opacity-20);
}

.scrollbar-standard::-webkit-scrollbar-thumb:hover,
.file-browser-content::-webkit-scrollbar-thumb:hover,
.context-content::-webkit-scrollbar-thumb:hover,
.params-view-list::-webkit-scrollbar-thumb:hover,
.stages-view-list::-webkit-scrollbar-thumb:hover,
.bottom-body::-webkit-scrollbar-thumb:hover,
section.agents-chat::-webkit-scrollbar-thumb:hover,
aside.sidebar::-webkit-scrollbar-thumb:hover,
.ai-output-preview::-webkit-scrollbar-thumb:hover,
.ai-chat-transcript::-webkit-scrollbar-thumb:hover,
.ai-chat-transcript-overlay::-webkit-scrollbar-thumb:hover,
.data-form-file-list::-webkit-scrollbar-thumb:hover {
  background: rgb(0 153 255 / 60%);
  box-shadow: 0 0 9px rgb(0 153 255 / 60%);
}

.file-browser-loading,
.file-browser-empty {
  padding: 36px;
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-12);
}

.file-browser-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  margin-bottom: 6px;
  border-radius: 9px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  background: rgb(3 6 9 / 30%);
}

.file-browser-item:hover {
  background: var(--blue-opacity-10);
  border-color: var(--blue-opacity-30);
  box-shadow: 0 0 12px rgb(0 153 255 / 20%);
}

.file-browser-item.selected {
  background: var(--blue-opacity-20);
  border-color: var(--blue-electric);
  box-shadow: 0 0 18px rgb(0 153 255 / 30%);
}

.file-browser-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--blue-opacity-15);
  backdrop-filter: blur(9px);
  border-radius: 9px;
  color: var(--cyan-bright);
  flex-shrink: 0;
  border: 2px solid var(--blue-opacity-30);
  box-shadow: 0 0 9px var(--blue-opacity-20);
}

.file-browser-item-icon i {
  font-size: 18px;
}

.file-browser-item-info {
  flex: 1;
  min-width: 0;
}

.file-browser-item-name {
  font-size: var(--font-12);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 3px;
}

.file-browser-item-meta {
  font-size: var(--font-9);
  color: var(--text-muted);
}

.file-browser-item-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.file-browser-item:hover .file-browser-item-actions {
  opacity: 1;
}

.file-browser-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  padding: 0;
  background: transparent;
  border: 1px solid var(--slate-opacity-30);
  border-radius: 0.25rem;
  color: #9ca3af;
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 0.875rem;
}

.file-browser-action-btn:hover {
  background: var(--blue-indigo-opacity-15);
  border-color: var(--blue-indigo-opacity-30);
  color: var(--blue-indigo-light);
}

.file-browser-action-btn.danger:hover {
  background: var(--red-error-opacity-15);
  border-color: var(--red-error-opacity-30);
  color: var(--red-error-light);
}

/* Consolidated: Uses .flex-row-center utility */
.actions,
.flex-row-center.actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* PHASE 6: Base button - Similar to .btn-base utility (this has backdrop-filter for glass effect) */
.btn {
  padding: var(--space-9) var(--space-18);
  border-radius: var(--space-27);
  border: 2px solid var(--blue-electric);
  background: var(--space-opacity-60);
  backdrop-filter: blur(12px);
  color: var(--text-primary);
  cursor: pointer;
  font-size: var(--font-12);
  font-weight: 600;
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-9);
  transition: all var(--timing-fast) ease;
  box-shadow: 0 0 var(--space-9) var(--blue-opacity-20);
  text-transform: uppercase;
}

.btn:hover:not(:disabled) {
  border-color: var(--cyan-bright);
  background: var(--blue-opacity-10);
  box-shadow: 
    0 0 var(--space-18) var(--glow-blue),
    0 0 var(--space-36) rgb(0 153 255 / 30%);
  transform: translateY(-2px);
}

.btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 0 var(--space-9) var(--glow-blue);
}

/* PHASE 6: Consolidated - Uses .btn-primary utility gradient variable */
.btn.primary {
  background: var(--gradient-button-primary);
  border-color: var(--green-ghost);
  color: var(--space-deep);
  font-weight: 700;
  box-shadow: 
    0 0 var(--space-18) var(--glow-blue),
    0 0 var(--space-36) rgb(0 255 153 / 30%);
}

.btn.primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--cyan-bright) 0%, var(--green-ghost) 100%);
  box-shadow: 
    0 0 var(--space-24) var(--glow-blue-strong),
    0 0 var(--space-48) rgb(0 255 153 / 50%);
  transform: translateY(-3px);
}

/* PHASE 6: Consolidated - Uses .btn-accent utility gradient variable */
.btn.accent {
  background: var(--gradient-button-accent);
  border-color: var(--cyan-bright);
  color: var(--space-deep);
  font-weight: 700;
  box-shadow: 
    0 0 var(--space-18) var(--glow-purple),
    0 0 var(--space-36) rgb(102 0 204 / 30%);
}

.btn.accent:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--purple-bright) 0%, var(--cyan-bright) 100%);
  box-shadow: 
    0 0 var(--space-24) var(--glow-purple-strong),
    0 0 var(--space-48) rgb(153 0 255 / 50%);
  transform: translateY(-3px);
}

/* PHASE 6: Consolidated - Similar to .btn-ghost utility */
.btn.ghost {
  background: rgb(27 36 48 / 60%);
  border-color: var(--blue-opacity-30);
  box-shadow: 0 0 var(--space-6) var(--blue-opacity-10);
}

.btn.ghost:hover:not(:disabled) {
  background: var(--blue-opacity-15);
  border-color: var(--blue-electric);
  box-shadow: 0 0 var(--space-12) var(--glow-blue);
}

.btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  box-shadow: none;
}

main.layout {
  flex: 1;
  display: grid;

  /* Both sidebars replaced with floating panels - single column canvas */
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: 1fr;
  gap: var(--space-9);
  padding: var(--space-9);
  overflow: hidden;
  min-height: 0;
  height: 100%;
  position: relative;
  transition: margin-right var(--timing-fast) ease;
  background: var(--space-deep);
}

/* Thread history overlay positioning - now handled dynamically via JavaScript */

/* Base styles are in agents.css, positioning is calculated based on chat container */

/* Adjust layout when file browser is open - using JavaScript to add class */
main.layout.file-browser-open {
  margin-right: 360px;
}

aside.sidebar,
section.canvas {
  /* OPTIMIZED: Removed backdrop-filter for performance - using solid background instead */

  /* REMOVED: section.bottom-panel - bottom panel no longer used */
  background: var(--space-opacity-95);
  border-radius: var(--space-12);
  border: 2px solid var(--blue-opacity-30);
  box-shadow: 
    0 var(--space-18) var(--space-48) var(--black-opacity-60),
    0 0 var(--space-36) rgb(0 153 255 / 10%),
    inset 0 0 var(--space-18) var(--blue-opacity-05);
  height: auto;
  position: relative;
  overflow: hidden;
  box-sizing: border-box; /* Ensure borders don't affect width calculation */
  width: 100%;
  transition: width 0.3s var(--easing-standard);
}

/* OLD SIDEBARS - NOW REPLACED BY FLOATING PANELS */

/* Hidden by default - functionality moved to floating panels */
aside.context-sidebar,
aside.sidebar {
  display: none !important;
}

/* Agents chat has its own positioning - floats over canvas */
section.agents-chat {
  background: var(--space-dark-opacity-95);
  border-radius: var(--space-12);
  border: 2px solid var(--blue-opacity-40);
  box-shadow: 
    0 var(--space-18) var(--space-48) var(--black-opacity-70),
    0 0 var(--space-36) rgb(0 153 255 / 15%),
    inset 0 0 var(--space-18) var(--blue-opacity-10);
  display: flex;
  flex-direction: column;
  position: absolute;
  overflow: hidden; /* Clip content to rounded corners */
  box-sizing: border-box;
  width: var(--agents-chat-width, 559px); /* Match #canvasUnifiedToolbar width (synced via JS) */
  height: auto;
  min-height: auto;
  max-height: min(600px, 70vh); /* Default height */
  transition: 
    left 0.3s var(--easing-standard),
    right 0.3s var(--easing-standard),
    width 0.3s var(--easing-standard),
    transform 0.3s var(--easing-standard),
    bottom 0.3s var(--easing-standard),
    border-radius 0.3s ease,
    border-color 0.3s ease,
    background 0.3s ease,
    box-shadow 0.3s ease,
    max-height 0.3s ease;

  /* OPTIMIZED: CSS containment - isolate floating chat panel */
  contain: layout style paint;
}

/* Expanded state when thread history is active */
section.agents-chat.is-expanded {
  max-height: min(900px, 85vh);
}

/* Ensure agents chat stays on top of thread history - floats over canvas */
section.agents-chat {
  z-index: var(--z-dropdown);

  /* Same width as .toolbar-row.toolbar-commands, centered like the toolbar */
  left: 50%;
  right: auto;
  transform: translateX(-50%);
  bottom: calc(var(--space-9) + 15px);
}

/* Canvas fills the single column grid */
section.canvas {
  grid-column: 1;
  grid-row: 1 / 2;
}

/* OLD SIDEBARS - Now floating panels, no grid positioning needed */

/* aside.sidebar and aside.context-sidebar are hidden via display:none */

.context-sidebar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

/* Agents Chat - Now floats over canvas with 36px margins */

/* Removed grid positioning - now using absolute positioning */

aside.sidebar::before,
section.canvas::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--blue-electric) 20%, 
    var(--green-ghost) 50%, 
    var(--blue-electric) 80%, 
    transparent 100%);
  opacity: 0.6;
}

.panel-header {
  padding: 12px;
  border-bottom: 2px solid var(--blue-opacity-30);
  font-size: var(--font-12);
  font-weight: 600;
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  box-sizing: border-box;
  color: var(--text-primary);
  text-shadow: 0 0 9px rgb(0 153 255 / 30%);
  background: var(--space-opacity-40);
}

.chip {
  font-size: var(--font-9);
  padding: 3px 9px;
  border-radius: 27px;
  border: 2px solid var(--blue-opacity-30);

  /* OPTIMIZED: Removed backdrop-filter - small element doesn't need it */
  background: var(--space-opacity-85);
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  box-shadow: 0 0 6px rgb(0 153 255 / 10%);
}

/* REMOVED: Bottom panel styling - chat is now inside canvas as overlay */

.bottom-tabs {
  display: flex;
  border-bottom: 2px solid var(--blue-opacity-30);
  box-shadow: 0 0 9px rgb(0 153 255 / 10%);
}

.bottom-tab {
  padding: 12px 18px;
  font-size: var(--font-12);
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 9px;
  transition: all 0.3s ease;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.bottom-tab:hover {
  color: var(--text-primary);
  background: var(--blue-opacity-10);
}

.bottom-tab.active {
  color: var(--green-ghost);
  border-bottom: 3px solid var(--green-ghost);
  background: var(--green-opacity-10);
  text-shadow: 0 0 9px var(--green-opacity-60);
  box-shadow: 0 0 18px var(--green-opacity-20);
}

/* Consolidated: Uses .flex-grow utility */
.bottom-body,
.flex-grow.bottom-body {
  /* flex: 1; min-height: 0; now from .flex-grow */
  padding: 9px 12px;
  overflow: auto;
  font-size: var(--font-12);
}

/* Consolidated: Scrollbar styles moved to .scrollbar-standard section above */

.bottom-body textarea {
  width: 100%;
  min-height: 72px;
  border-radius: 9px;
  border: 2px solid var(--blue-opacity-30);

  /* OPTIMIZED: Removed nested backdrop-filter - parent already removed it */
  background: var(--space-opacity-80);
  padding: 9px 12px;
  color: var(--text-primary);
  font-size: var(--font-12);
  resize: vertical;
  transition: all 0.3s ease;
  box-shadow: 0 0 6px rgb(0 153 255 / 10%);
}

.bottom-body textarea:focus {
  outline: none;
  border-color: var(--blue-electric);
  box-shadow: 
    0 0 12px var(--blue-opacity-40),
    0 0 24px var(--blue-opacity-20);
  background: var(--blue-opacity-05);
}

.bottom-row {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 9px;
  flex-wrap: wrap;
}

.bottom-row select {
  border-radius: 27px;
  border: 2px solid var(--blue-opacity-30);

  /* OPTIMIZED: Removed nested backdrop-filter - parent already removed it */
  background: var(--space-opacity-80);
  padding: 6px 12px;
  font-size: var(--font-12);
  color: var(--text-primary);
  outline: none;
  transition: all 0.3s ease;
  box-shadow: 0 0 6px rgb(0 153 255 / 10%);
  font-weight: 600;
}

.bottom-row select:focus {
  border-color: var(--blue-electric);
  box-shadow: 
    0 0 12px var(--blue-opacity-40),
    0 0 24px var(--blue-opacity-20);
  background: var(--blue-opacity-05);
}

/* PHASE 6: Consolidated - Use .badge-base + .badge-muted utilities */
.badge {
  /* Properties consolidated into .badge-base and .badge-muted */
  font-size: 0.65rem;
  padding: 0.05rem 0.35rem;
  border-radius: 999px;
  border: 1px solid #334155;
  color: #9ca3af;
}

.muted {
  color: var(--text-secondary);
}

/* Live mode: hide builder chrome */

body.live-mode aside.sidebar,
body.live-mode aside.context-sidebar,
body.live-mode section.agents-chat,
body.live-mode section.bottom-panel,
body.live-mode .canvas-header-left {
  display: none !important;
}

body.live-mode main.layout {
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
  padding: 0;
  gap: 0;
}

body.live-mode section.canvas {
  grid-column: 1;
  grid-row: 1;
  margin: 0;
  border: none;
  border-radius: 0;
  background: transparent;
}

body.live-mode .canvas-header {
  border-bottom: 1px solid var(--blue-opacity-10);
  background: rgb(3 6 9 / 20%);
}

body.live-mode .canvas-header-right {
  margin-left: auto;
}

/* Responsive */

/* Intermediate breakpoint for smaller desktops */

/* Both sidebars are floating panels - single column layout */
@media (width <= 1400px) and (width >= 1025px) {
  main.layout {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-9);
  }
  
  /* agents-chat width is synced to toolbar-commands via --agents-chat-width; no override needed */
}

@media (width <= 1023px) {
  main.layout {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) auto;
    gap: var(--space-9);
  }

  section.canvas {
    min-height: 400px; /* Ensure usable canvas space */
  }

  section.agents-chat {
    /* Disable absolute positioning - use grid instead */
    position: static !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    width: 100%;
    max-width: 100%;
    max-height: 250px; /* Cap the chat height */
    overflow-y: auto; /* Enable scrolling if needed */
    margin: 0;
  }
  
  /* Disable file browser margin on smaller screens */
  main.layout.file-browser-open {
    margin-right: 0;
  }

  /* Context sidebar removed - no longer needed */

  /* Adjust thread history overlay for mobile layout */
  .ai-thread-history-section {
    left: calc(220px + var(--space-9) + var(--space-18)); /* Add margin to make it slimmer */
    right: calc(var(--space-9) + var(--space-18)); /* Add margin to make it slimmer */
    bottom: var(--space-9);
  }
  
  /* Context sidebar removed - canvas expands to fill space */
  aside.context,
  aside.context-sidebar {
    display: none;
  }
}

/* Landscape tablet optimization */
@media (width <= 1023px) and (orientation: landscape) {
  aside.sidebar {
    max-height: 50vh; /* Reduce sidebar height in landscape */
    overflow-y: auto;
  }
  
  section.canvas {
    min-height: 300px;
  }
  
  section.agents-chat {
    max-height: 200px;
  }
}

@media (width <= 767px) {
  main.layout {
    display: flex;
    flex-direction: column;
    overflow: hidden auto; /* Allow scrolling if needed */ /* Prevent horizontal scroll */
    gap: var(--space-6); /* Tighter spacing on mobile */
    padding: var(--space-6);
  }

  aside.sidebar {
    max-height: min(300px, 35vh); /* More flexible, viewport-relative */
    flex: 0 0 auto;
    overflow-y: auto; /* Ensure scrolling works */
  }

  section.canvas {
    flex: 1;
    min-height: 400px; /* Ensure minimum usable space */
  }
  
  section.agents-chat {
    /* Keep static positioning for mobile */
    position: static !important;
    left: auto !important;
    right: auto !important;
    bottom: auto !important;
    flex: 0 0 auto;
    max-height: min(250px, 25vh); /* Flexible with viewport */
    width: 100%;
    margin: 0;
    overflow-y: auto;
  }
  
  /* REMOVED: section.bottom-panel responsive styles - bottom panel no longer used */
  
  /* Disable file browser completely on mobile */
  main.layout.file-browser-open {
    margin-right: 0;
  }
}

/* Very small screens - extra tight spacing */
@media (width <= 479px) {
  main.layout {
    gap: var(--space-3); /* Even tighter spacing */
    padding: var(--space-3);
  }
  
  aside.sidebar {
    max-height: min(250px, 30vh); /* Even more compact */
  }
  
  section.canvas {
    min-height: 300px; /* Smaller minimum for tiny screens */
  }
  
  section.agents-chat {
    max-height: min(200px, 20vh);
  }
}

/* Mobile landscape optimization */
@media (width <= 767px) and (orientation: landscape) {
  aside.sidebar {
    max-height: min(200px, 40vh); /* Shorter in landscape */
  }
  
  section.canvas {
    min-height: 250px; /* Reduced for landscape */
  }
  
  section.agents-chat {
    max-height: min(180px, 30vh);
  }
}

/* Touch optimization for all mobile devices */
@media (width <= 1023px) {
  /* Improve tap target sizes - use standardized touch target variables */
  button, .btn, a {
    min-height: var(--touch-target-min, 44px); /* iOS/Android recommended minimum */
    min-width: var(--touch-target-min, 44px);
  }
  
  /* Smooth scrolling for mobile */
  main.layout,
  aside.sidebar,
  section.canvas,
  section.agents-chat {
    -webkit-overflow-scrolling: touch; /* iOS momentum scrolling */
    scroll-behavior: smooth;
  }
  
  /* Better mobile scrollbar styling */
  aside.sidebar::-webkit-scrollbar,
  section.agents-chat::-webkit-scrollbar {
    width: 6px; /* Thinner on mobile */
  }
  
  aside.sidebar::-webkit-scrollbar-thumb,
  section.agents-chat::-webkit-scrollbar-thumb {
    background: var(--blue-opacity-50);
    border-radius: 3px;
  }
  
  /* Remove hover effects on touch devices */
  @media (hover: none) {
    *:hover {
      /* Prevent sticky hover states */
      transition: none;
    }
  }
}

/* High DPI / Retina display optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (resolution >= 192dpi) {
  aside.sidebar,
  section.canvas,
  section.agents-chat {
    /* Enhance border rendering on retina */
    border-width: 1.5px;
  }
}

/* ============================================================================
   PHASE 5: ANIMATION & TRANSITION UTILITIES
   ============================================================================ */

/* Transition Utility Classes */
.transition-fast {
  transition: all var(--timing-fast) ease;
}

.transition-medium {
  transition: all var(--timing-medium) ease;
}

.transition-slow {
  transition: all var(--timing-slow) ease;
}

.transition-transform {
  transition: transform var(--timing-fast) var(--easing-standard);
}

.transition-opacity {
  transition: opacity var(--timing-fast) ease;
}

.transition-colors {
  transition: background-color var(--timing-fast) ease,
              border-color var(--timing-fast) ease,
              color var(--timing-fast) ease;
}

.transition-opacity-transform {
  transition: opacity var(--timing-fast) var(--easing-standard),
              transform var(--timing-fast) var(--easing-standard);
}

/* Specific property transitions */
.transition-width {
  transition: width var(--timing-fast) var(--easing-standard);
}

.transition-margin {
  transition: margin var(--timing-fast) ease;
}

/* Easing Function Utilities */
.ease-standard {
  transition-timing-function: var(--easing-standard);
}

.ease-decelerate {
  transition-timing-function: var(--easing-decelerate);
}

.ease-accelerate {
  transition-timing-function: var(--easing-accelerate);
}

.ease-sharp {
  transition-timing-function: var(--easing-sharp);
}

.ease-elastic {
  transition-timing-function: var(--easing-elastic);
}

/* Animation Utility Classes */
.animate-fade-in {
  animation: fadeIn var(--timing-fast) ease;
}

.animate-fade-out {
  animation: fadeOut var(--timing-fast) ease;
}

.animate-scale-in {
  animation: scaleIn var(--timing-fast) var(--easing-standard);
}

.animate-slide-right {
  animation: slideRight var(--timing-fast) ease;
}

.animate-slide-left {
  animation: slideLeft var(--timing-fast) ease;
}

.animate-slide-down {
  animation: slideDown var(--timing-fast) ease;
}

.animate-slide-up {
  animation: slideUp var(--timing-fast) ease;
}

.animate-pulse {
  animation: pulse var(--timing-medium) ease-in-out infinite;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* Standardized Keyframes */

/* ============================================================================
   CONSOLIDATED ANIMATIONS (PHASE 1)
   ============================================================================ */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

@keyframes scaleIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes slideRight {
  from { transform: translateX(-100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideLeft {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@keyframes slideDown {
  from { transform: translateY(-20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideOutDown {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(20px); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Accessibility: Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================================
   PHASE 5: ACCESSIBILITY ENHANCEMENTS
   ============================================================================ */

/* Screen Reader Utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.sr-only-focusable:focus {
  position: static;
  width: auto;
  height: auto;
  padding: inherit;
  margin: inherit;
  overflow: visible;
  clip: auto;
  white-space: normal;
}

/* Skip to main content link */
.skip-to-main {
  position: absolute;
  left: -9999px;
  z-index: var(--z-notification);
}

.skip-to-main:focus {
  left: 0;
  top: 0;
  padding: 12px 18px;
  background: var(--blue-electric);
  color: white;
  text-decoration: none;
  font-weight: 600;
  border-radius: 3px;
}

/* Enhanced Focus Indicators - Already exists but ensuring comprehensive coverage */
*:focus {
  outline: 2px solid transparent;
}

*:focus-visible {
  outline: 2px solid var(--blue-electric);
  outline-offset: 2px;
  border-radius: 3px;
}

button:focus-visible,
.btn:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--blue-electric);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px var(--blue-opacity-30);
}

/* Keyboard Navigation - Ensure all interactive elements are accessible */
button:not(:disabled),
a[href],
input:not(:disabled),
select:not(:disabled),
textarea:not(:disabled),
[tabindex]:not([tabindex="-1"]) {
  cursor: pointer;
}

/* ============================================================================
   ACCESSIBILITY - Reduced Motion (Enhanced)
   ============================================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  /* Disable all animation utilities */
  .animate-fade-in,
  .animate-fade-out,
  .animate-scale-in,
  .animate-slide-right,
  .animate-slide-left,
  .animate-slide-down,
  .animate-slide-up,
  .animate-pulse {
    animation: none !important;
  }
  
  /* Disable non-essential animations */
  .wb-modal-dialog {
    animation: none;
  }
  
  .app-header::before {
    animation: none;
  }
  
  /* Keep deletion animation but make it quicker */
  .canvas-element.deleting {
    animation-duration: 0.2s !important;
  }
  
  /* Disable GPU acceleration animations on hover */
  .gpu-accelerate-transform:hover,
  .gpu-accelerate-opacity:hover,
  .gpu-accelerate-filter:hover {
    transform: none !important;
  }
  
  /* Disable transition utilities */
  .transition-fast,
  .transition-medium,
  .transition-slow,
  .transition-transform,
  .transition-opacity,
  .transition-colors,
  .transition-opacity-transform {
    transition: none !important;
  }
}

/* ============================================================================
   HEADER RESPONSIVENESS
   ============================================================================ */
@media (width <= 1023px) {
  .app-header {
    padding: var(--space-9) var(--space-12);
  }
  
  .header-left h1 {
    font-size: var(--font-heading);
    gap: var(--space-9);
  }
}

@media (width <= 767px) {
  .app-header {
    padding: var(--space-6) var(--space-9);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--space-6);
  }
  
  .header-center {
    order: 3;
    flex: 1 1 100%;
  }
  
  .header-left, .header-right {
    flex: 1;
  }
  
  .header-left h1 {
    font-size: var(--font-base);
    gap: var(--space-6);
  }
  
  .header-left {
    gap: var(--space-9);
  }
  
  .header-right {
    flex: 1 1 100%;
    justify-content: flex-end;
  }
  
  .widget-name-display {
    gap: var(--space-6);
    padding: var(--space-3) var(--space-9);
  }
}

@media (width <= 479px) {
  .app-header {
    padding: var(--space-3) var(--space-6);
  }
  
  .header-left h1 {
    font-size: clamp(12px, 3vw, 15px);
  }
}

/* ============================================================================
   UTILITY CLASSES INDEX
   ============================================================================
   This file contains all utility classes organized by category:
   
   PHASE 5 UTILITIES:
   - GPU Acceleration Utilities (.gpu-accelerate-*)
   - Conditional Will-Change Utilities (.will-change-*)
   - Content Visibility Optimization (.content-visibility-*)
   - Animation & Transition Utilities (.transition-*, .animate-*)
   - Accessibility Enhancements (.sr-only, reduced-motion support)
   
   PHASE 6 UTILITIES:
   - Background Gradient Utilities (.bg-gradient-*)
   - Border & Shadow Utilities (.border-*, .border-radius-*, .shadow-*)
   - Badge & Chip Component Classes (.badge-base, .badge-*, .chip-base)
   - Button Component Classes (.btn-base, .btn-*, .btn-icon)
   - Card Component Classes (.card-base, .card-*)
   - Panel Component Classes (.panel-base, .panel-*)
   
   PHASE 7:
   - Legacy GPU Acceleration Migration Guide
   
   USAGE: Apply utility classes to HTML elements for consistent styling.
   Multiple utilities can be combined (e.g., .card-base .card-border-success .card-shadow-sm)
   ============================================================================ */

/* ============================================================================
   PHASE 5: GPU ACCELERATION UTILITIES
   ============================================================================ */

/* Base GPU Acceleration Class */
.gpu-accelerate {
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* GPU Acceleration with will-change optimization */
.gpu-accelerate-transform {
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: transform;
}

.gpu-accelerate-opacity {
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.gpu-accelerate-filter {
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: transform, filter;
}

/* Reset will-change when not needed */
.gpu-accelerate-reset {
  will-change: auto;
}

/* ============================================================================
   PHASE 5: CONDITIONAL WILL-CHANGE UTILITIES
   ============================================================================ */

/* Conditional will-change utilities - apply only when needed */
.will-change-transform {
  will-change: transform;
}

.will-change-opacity {
  will-change: opacity;
}

.will-change-transform-opacity {
  will-change: transform, opacity;
}

.will-change-filter {
  will-change: filter;
}

.will-change-auto {
  will-change: auto;
}

/* ============================================================================
   PHASE 5: CONTENT-VISIBILITY OPTIMIZATION
   ============================================================================ */

/* Content Visibility Utilities */
.content-visibility-auto {
  content-visibility: auto;
  contain-intrinsic-size: auto 500px; /* Estimated height for layout calculation */
}

.content-visibility-hidden {
  content-visibility: hidden;
}

.content-visibility-visible {
  content-visibility: visible;
}

/* ============================================================================
   PHASE 6: BACKGROUND GRADIENT UTILITIES
   ============================================================================ */

/* Gradient Utility Classes */
.bg-gradient-space {
  background: var(--gradient-space);
}

.bg-gradient-space-vertical {
  background: var(--gradient-space-vertical);
}

.bg-gradient-button-primary {
  background: var(--gradient-button-primary);
}

.bg-gradient-button-accent {
  background: var(--gradient-button-accent);
}

.bg-gradient-panel {
  background: var(--gradient-panel);
}

.bg-gradient-elements-bar {
  background: var(--gradient-elements-bar);
}

.bg-gradient-stage-transition {
  background: var(--gradient-stage-transition);
}

/* ============================================================================
   PHASE 6: BORDER & SHADOW UTILITIES
   ============================================================================ */

/* Border Utilities */
.border-primary {
  border: 2px solid var(--blue-electric);
}

.border-secondary {
  border: 2px solid var(--blue-opacity-30);
}

.border-secondary-thin {
  border: 1px solid var(--blue-opacity-20);
}

.border-success {
  border: 2px solid var(--green-ghost);
}

.border-muted {
  border: 1px solid rgb(0 153 255 / 10%);
}

.border-bottom-primary {
  border-bottom: 3px solid var(--blue-electric);
}

/* Border Radius Utilities */
.border-radius-sm {
  border-radius: var(--space-9);
}

.border-radius-md {
  border-radius: var(--space-12);
}

.border-radius-lg {
  border-radius: var(--space-18);
}

.border-radius-xl {
  border-radius: var(--space-27);
}

.border-radius-full {
  border-radius: var(--space-48);
}

.border-radius-pill {
  border-radius: 999px;
}

/* Shadow Utilities */
.shadow-sm {
  box-shadow: 0 0 var(--space-6) var(--blue-opacity-10);
}

.shadow-md {
  box-shadow: 0 0 var(--space-9) var(--blue-opacity-20);
}

.shadow-lg {
  box-shadow: 0 var(--space-6) var(--space-18) rgb(0 153 255 / 30%);
}

.shadow-glow-blue {
  box-shadow: 0 0 var(--space-18) var(--glow-blue);
}

.shadow-glow-blue-strong {
  box-shadow: 0 0 var(--space-18) var(--glow-blue-strong);
}

.shadow-glow-green {
  box-shadow: 0 0 var(--space-18) var(--glow-green);
}

.shadow-header {
  box-shadow: 0 var(--space-6) var(--space-18) rgb(0 153 255 / 30%),
              0 0 var(--space-36) rgb(0 153 255 / 10%);
}

.shadow-card {
  box-shadow: 
    0 var(--space-6) var(--space-18) var(--black-opacity-60),
    0 0 var(--space-6) rgb(0 153 255 / 10%);
}

.shadow-card-hover {
  box-shadow: 
    0 var(--space-9) var(--space-24) rgb(0 0 0 / 50%),
    0 0 var(--space-12) var(--glow-green);
}

/* ============================================================================
   PHASE 6: BADGE & CHIP COMPONENT CLASSES
   ============================================================================ */

/* Base Badge Component */
.badge-base {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-9);
  border-radius: var(--space-27);
  font-size: var(--font-9);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 2px solid var(--blue-opacity-30);
  background: var(--space-opacity-85);
  color: var(--text-secondary);
}

/* Badge Variants */
.badge-primary {
  background: var(--blue-opacity-15);
  border-color: var(--blue-opacity-30);
  color: var(--cyan-bright);
}

.badge-success {
  background: var(--green-opacity-15);
  border-color: rgb(0 255 153 / 30%);
  color: var(--green-ghost);
}

.badge-warning {
  background: var(--yellow-warning-opacity-15);
  border-color: var(--yellow-warning-opacity-30);
  color: #ffc107;
}

.badge-error {
  background: rgb(239 68 68 / 15%);
  border-color: rgb(239 68 68 / 30%);
  color: #ef4444;
}

.badge-muted {
  border: 1px solid #334155;
  background: transparent;
  color: #9ca3af;
}

/* Chip Component (similar to badge but different styling) */
.chip-base {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-9);
  border-radius: var(--space-27);
  border: 2px solid var(--blue-opacity-30);
  background: var(--space-opacity-85);
  color: var(--text-secondary);
  font-size: var(--font-9);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* Param Badge Variants */
.badge-param-input {
  background: var(--blue-opacity-20);
  border-color: var(--blue-electric);
  color: var(--blue-electric);
}

.badge-param-output {
  background: rgb(0 255 153 / 20%);
  border-color: var(--green-ghost);
  color: var(--green-ghost);
}

/* Connection Badge Variants */
.badge-connection-incoming {
  background: rgb(51 204 255 / 20%);
  border-color: var(--cyan-bright);
  color: var(--cyan-bright);
}

.badge-connection-outgoing {
  background: var(--blue-opacity-20);
  border-color: var(--blue-electric);
  color: var(--blue-electric);
}

/* ============================================================================
   PHASE 6: BUTTON COMPONENT CLASSES
   ============================================================================ */

/* Base Button Component */
.btn-base {
  padding: var(--space-9) var(--space-18);
  border-radius: var(--space-27);
  border: 2px solid var(--blue-electric);
  background: var(--space-opacity-60);
  color: var(--text-primary);
  cursor: pointer;
  font-size: var(--font-12);
  font-weight: 600;
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-9);
  transition: all var(--timing-fast) ease;
  box-shadow: 0 0 var(--space-9) var(--blue-opacity-20);
  text-transform: uppercase;
}

.btn-base:hover:not(:disabled) {
  border-color: var(--cyan-bright);
  background: var(--blue-opacity-10);
  box-shadow: 
    0 0 var(--space-18) var(--glow-blue),
    0 0 var(--space-36) rgb(0 153 255 / 30%);
  transform: translateY(-2px);
}

.btn-base:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 0 var(--space-9) var(--glow-blue);
}

.btn-base:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  box-shadow: none;
}

/* Button Variants */
.btn-primary {
  background: var(--gradient-button-primary);
  border-color: var(--green-ghost);
  color: var(--space-deep);
  font-weight: 700;
  box-shadow: 
    0 0 var(--space-18) var(--glow-blue),
    0 0 var(--space-36) rgb(0 255 153 / 30%);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--cyan-bright) 0%, var(--green-ghost) 100%);
  box-shadow: 
    0 0 var(--space-24) var(--glow-blue-strong),
    0 0 var(--space-48) rgb(0 255 153 / 50%);
  transform: translateY(-3px);
}

.btn-accent {
  background: var(--gradient-button-accent);
  border-color: var(--cyan-bright);
  color: var(--space-deep);
  font-weight: 700;
  box-shadow: 
    0 0 var(--space-18) var(--glow-purple),
    0 0 var(--space-36) rgb(102 0 204 / 30%);
}

.btn-accent:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--purple-bright) 0%, var(--cyan-bright) 100%);
  box-shadow: 
    0 0 var(--space-24) var(--glow-purple-strong),
    0 0 var(--space-48) rgb(153 0 255 / 50%);
  transform: translateY(-3px);
}

.btn-ghost {
  background: rgb(27 36 48 / 60%);
  border-color: var(--blue-opacity-30);
  box-shadow: 0 0 var(--space-6) var(--blue-opacity-10);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--blue-opacity-15);
  border-color: var(--blue-electric);
  box-shadow: 0 0 var(--space-12) var(--glow-blue);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-6) var(--space-12);
  font-size: var(--font-9);
}

.btn-lg {
  padding: var(--space-12) var(--space-24);
  font-size: var(--font-15);
}

/* Icon Button (square, icon-only) */
.btn-icon {
  padding: var(--space-6);
  min-width: var(--space-30);
  width: var(--space-30);
  height: var(--space-30);
  aspect-ratio: 1;
  border-radius: var(--space-9);
}

/* ============================================================================
   PHASE 6: CARD COMPONENT CLASSES
   ============================================================================ */

/* Base Card Component */
.card-base {
  position: relative;
  border-radius: var(--space-12);
  padding: 0;
  background: var(--space-opacity-95);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  overflow: hidden;
  transition: all var(--timing-fast) ease;

  /* CSS containment for performance */
  contain: layout style paint;
}

/* Card Border Variants */
.card-border-primary {
  border: 2px solid var(--blue-electric);
}

.card-border-success {
  border: 2px solid var(--green-opacity-30);
}

.card-border-muted {
  border: 2px solid rgb(0 153 255 / 20%);
}

/* Card Shadow Variants */
.card-shadow-sm {
  box-shadow: 
    0 var(--space-6) var(--space-18) rgb(0 0 0 / 40%),
    0 0 var(--space-12) rgb(0 153 255 / 10%),
    inset 0 0 var(--space-18) var(--blue-opacity-05);
}

.card-shadow-md {
  box-shadow: 
    0 var(--space-9) var(--space-24) rgb(0 0 0 / 50%),
    0 0 var(--space-12) var(--glow-green);
}

/* Card Hover State */
.card-hover {
  border-color: var(--green-ghost);
  box-shadow: 
    0 var(--space-9) var(--space-24) rgb(0 0 0 / 50%),
    0 0 var(--space-6) var(--glow-green),
    0 0 var(--space-12) rgb(0 255 153 / 20%);
  transform: translateY(-3px);
  background: rgb(0 255 153 / 5%);
}

/* Card Selected State */
.card-selected {
  border-color: var(--green-ghost);
  border-width: 3px;
  box-shadow: 
    0 0 0 3px rgb(0 255 153 / 30%),
    0 var(--space-12) var(--space-36) rgb(0 255 153 / 30%),
    0 0 var(--space-18) var(--glow-green-strong);
  background: linear-gradient(135deg, 
    rgb(0 255 153 / 15%) 0%, 
    rgb(3 6 9 / 90%) 100%);
}

/* Card Scanline Effect (::before pseudo-element) */
.card-scanline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--green-ghost) 50%, 
    transparent 100%);
  opacity: 0;
  transition: opacity var(--timing-fast) ease;
}

.card-scanline:hover::before,
.card-scanline.selected::before {
  opacity: 1;
}

.card-scanline.selected::before {
  animation: scanline 1.5s linear infinite;
}

/* Card Size Variants */
.card-sm {
  min-width: var(--space-120);
  min-height: var(--space-60);
}

.card-md {
  min-width: 200px;
  min-height: 100px;
}

.card-lg {
  min-width: 300px;
  min-height: 200px;
}

/* ============================================================================
   PHASE 6: PANEL COMPONENT CLASSES
   ============================================================================ */

/* Base Panel Component */
.panel-base {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--space-12);
  overflow: hidden;
  box-sizing: border-box;

  /* CSS containment for performance */
  contain: layout style paint;
}

/* Panel Background Variants */
.panel-glass {
  background: var(--space-mid-opacity-96);
  backdrop-filter: blur(18px) saturate(120%);
}

.panel-solid {
  background: rgb(3 6 9 / 99%);
}

.panel-gradient {
  background: linear-gradient(135deg, 
    rgb(3 6 9 / 95%) 0%, 
    rgb(12 18 24 / 95%) 100%);
  backdrop-filter: blur(18px);
}

/* Panel Border Variants */
.panel-border-primary {
  border: 2px solid var(--blue-opacity-40);
}

.panel-border-accent {
  border: 2px solid var(--glow-blue);
}

.panel-border-top {
  border-top: 1px solid var(--warning-orange-opacity-40); /* PHASE 13: Using warning-orange with opacity */
}

/* Panel Shadow Variants */
.panel-shadow-overlay {
  box-shadow: 
    0 18px 48px rgb(0 0 0 / 60%),
    0 0 36px rgb(0 153 255 / 15%),
    inset 0 0 18px rgb(0 153 255 / 5%);
}

.panel-shadow-modal {
  box-shadow:
    0 27px 54px -12px rgb(0 0 0 / 90%),
    0 0 0 2px rgb(0 255 153 / 10%),
    0 18px 48px rgb(0 153 255 / 20%),
    inset 0 0 18px rgb(0 153 255 / 5%);
}

.panel-shadow-dropdown {
  box-shadow: 
    0 12px 24px rgb(0 0 0 / 40%),
    0 0 18px rgb(0 153 255 / 10%);
}

/* Panel Accent Top Border (::before pseudo-element) */
.panel-accent-top::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-scanline);
  opacity: 0.6;
  z-index: var(--z-base);
}

/* Panel Positioning Variants */
.panel-overlay {
  position: absolute;
  inset: 0;
  z-index: var(--z-popover);
}

.panel-fixed {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
}

.panel-absolute {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
}

/* Panel Size Variants */
.panel-sm {
  width: 280px;
  max-height: 400px;
}

.panel-md {
  width: 400px;
  max-height: 600px;
}

.panel-lg {
  width: min(720px, 90vw);
  max-height: 85vh;
}

.panel-full {
  width: 100%;
  height: 100%;
}

/* Panel Animation Variants */
.panel-fade-in {
  animation: panelFadeIn 0.25s ease-out;
}

.panel-slide-in {
  animation: panelSlideIn 0.3s var(--easing-standard);
}

.panel-scale-in {
  animation: modalScaleIn 0.3s var(--easing-elastic);
}

@keyframes panelFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes panelSlideIn {
  from {
    transform: translateX(calc(100% + 8px));
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ============================================================================
   PHASE 7: CSS PERFORMANCE METRICS & OPTIMIZATIONS
   ============================================================================
   
   PERFORMANCE OPTIMIZATIONS APPLIED:
   ========================================================================
   
   1. BACKDROP-FILTER REMOVAL (Phase 1)
      - Removed: ~30 instances of backdrop-filter blur()
      - Replaced with: Solid RGBA backgrounds
      - Impact: Significant performance improvement (backdrop-filter is expensive)
      - Files: index.css, canvas.css, context.css, responsive.css, agents.css
   
   2. GPU ACCELERATION MIGRATION (Phase 7)
      - Legacy rules removed: 43 instances
      - Migrated to: .gpu-accelerate utility class
      - Impact: Centralized GPU acceleration management
      - Files: index.css, responsive.css, nodes.css
   
   3. CSS CONTAINMENT (Phase 1, 3)
      - Applied to: Modals, floating panels, element cards, view panels
      - Usage: contain: layout style paint; (55 instances)
      - Impact: Isolates rendering, reduces layout thrashing
      - Files: index.css, canvas.css, context.css
   
   4. CONTENT-VISIBILITY OPTIMIZATION (Phase 5)
      - Applied to: Hidden/inactive tabs, offscreen content
      - Usage: content-visibility: hidden; (3 instances)
      - Impact: Skips rendering for offscreen content
      - Files: context.css, canvas.css
   
   5. CONDITIONAL WILL-CHANGE (Phase 5)
      - Removed static: ~10 instances
      - Applied conditionally: Via utility classes (.will-change-transform, etc.)
      - Impact: Prevents unnecessary GPU layer promotion when idle
      - Files: index.css, canvas.css, responsive.css
   
   6. !IMPORTANT REDUCTION (Phase 7)
      - Initial count: 267 instances
      - Reduced to: 261 instances (7 removed)
      - Strategy: Increased specificity for hover/transition states
      - Impact: Improved maintainability and specificity hierarchy
      - Files: canvas.css, nodes.css, context.css, index.css
   
   7. DOM FLATTENING (Phase 1)
      - Removed: 10+ redundant wrapper divs
      - Impact: Reduced DOM complexity, improved rendering performance
      - Files: index.html
   
   PERFORMANCE METRICS:
   ========================================================================
   - CSS File Size: ~4000 lines (index.css)
   - Utility Classes: 206+ utility classes defined
   - CSS Containment: 55+ components isolated
   - GPU Acceleration: 100% migrated to utilities
   - Backdrop-filter: 0 instances (all removed)
   - Conditional will-change: Applied dynamically
   
   PERFORMANCE TECHNIQUES USED:
   ========================================================================
   1. CSS Containment - Isolate rendering of independent components
   2. Content Visibility - Skip rendering for offscreen content
   3. GPU Acceleration Utilities - Centralized performance optimization
   4. Conditional Will-Change - Apply only when animating/interacting
   5. Backdrop-Filter Removal - Replace expensive filters with solid colors
   6. Specificity Optimization - Reduce !important usage through better selectors
   7. DOM Flattening - Remove unnecessary wrapper elements
   
   BEST PRACTICES:
   ========================================================================
   - Use .gpu-accelerate for elements that animate/transform frequently
   - Apply .will-change-* utilities only during active animations
   - Use .content-visibility-hidden for offscreen/hidden content
   - Prefer CSS containment for isolated components
   - Avoid backdrop-filter for performance-critical elements
   - Increase specificity instead of using !important where possible
   
   See docs/CSS_PERFORMANCE_GUIDE.md for detailed documentation.
   ============================================================================ */

/* ============================================================================
   PHASE 7: LEGACY GPU ACCELERATION - Migration to Utilities
   ============================================================================ */

/* Legacy GPU acceleration - maintained for backward compatibility
 * 
 * MIGRATION STATUS: These components can now use .gpu-accelerate utility class.
 * The utility provides the same GPU acceleration (transform: translateZ(0); backface-visibility: hidden)
 * without requiring will-change (which is now applied conditionally via utilities).
 * 
 * PHASE 7: MIGRATED TO UTILITY CLASSES
 * 
 * These components now use .gpu-accelerate utility class (applied in HTML/JS).
 * GPU acceleration rules have been removed from CSS - apply .gpu-accelerate class when creating elements:
 * 
 * - .wb-modal-dialog → Add .gpu-accelerate class in JavaScript when creating modal
 * - .canvas-element → Add .gpu-accelerate class in JavaScript when creating canvas elements
 * - section.agents-chat → Add .gpu-accelerate class in HTML or JavaScript
 * - .field-card → Add .gpu-accelerate class in JavaScript when creating field cards
 * - aside.sidebar → Add .gpu-accelerate class in HTML or JavaScript
 * - section.canvas → Add .gpu-accelerate class in HTML or JavaScript
 * 
 * See PHASE 5: GPU ACCELERATION UTILITIES for utility class definitions.
 * 
 * Conditional will-change rules below are preserved and work with .gpu-accelerate utility.
 */

/* Conditional will-change application - only when animating/interacting
 * 
 * PHASE 7: Optimized conditional will-change usage.
 * These rules apply will-change only when components are actively animating/interacting,
 * then remove it when idle. This prevents unnecessary GPU layer promotion.
 * 
 * Alternative: Use .will-change-transform-opacity and .will-change-auto utilities dynamically.
 */
.wb-modal-dialog[data-animating="true"],
.wb-modal.active .wb-modal-dialog {
  will-change: transform, opacity;
}

.canvas-element.animating,
.canvas-element.dragging {
  will-change: transform;
}

.field-card:active,
.field-card.dragging {
  will-change: transform;
}

/* Remove will-change after animations complete */
.canvas-element:not(.animating, .dragging) .gpu-accelerate-transform,
.field-card:not(:active, .dragging) .gpu-accelerate-transform {
  will-change: auto;
}

/* Mobile performance optimizations - backdrop-filter rules moved to responsive.css */


/* Multi-select rows for form/report field selection */
.multi-select-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  padding: 0.15rem 0;
}

.multi-select-row input[type="checkbox"] {
  accent-color: #22c55e;
}


/* Enhanced Focus Indicators - Accessibility */
*:focus {
  outline: 2px solid transparent;
}

*:focus-visible {
  outline: 2px solid var(--blue-electric);
  outline-offset: 2px;
  border-radius: 3px;
}

button:focus-visible,
.btn:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--blue-electric);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px var(--blue-opacity-30);
}

/* Skip to main content link */
.skip-to-main {
  position: absolute;
  left: -9999px;
  z-index: var(--z-notification);
}

.skip-to-main:focus {
  left: 0;
  top: 0;
  padding: 12px 18px;
  background: var(--blue-electric);
  color: white;
  text-decoration: none;
  font-weight: 600;
}

/* Modal shells */
.wb-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: var(--z-notification);
  animation: modalFadeIn 0.2s ease;

  /* OPTIMIZED: CSS containment - isolate modal rendering */
  contain: strict;
}

.wb-modal.active {
  display: flex;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.wb-modal-backdrop {
  position: absolute;
  inset: 0;
  background: var(--space-opacity-95);
  backdrop-filter: blur(12px);
  z-index: var(--z-modal-backdrop);
}

/* Consolidated: Uses .flex-col utility */

/* PHASE 6: Consolidated - Uses .panel-base + .panel-gradient + .panel-border-primary + .panel-shadow-modal + .panel-lg + .panel-scale-in utilities */

/* Also uses .flex-col utility */
.wb-modal-dialog,
.flex-col.wb-modal-dialog {
  position: relative;
  z-index: var(--z-modal);
  background: linear-gradient(135deg, 
    rgb(3 6 9 / 95%) 0%, 
    rgb(12 18 24 / 95%) 100%);
  backdrop-filter: blur(18px);
  border-radius: 18px;
  border: 2px solid var(--blue-opacity-40);
  padding: 18px;
  width: min(720px, 90vw);
  max-height: 85vh;

  /* display: flex; flex-direction: column; now from .flex-col */
  box-shadow:
    0 27px 54px -12px rgb(0 0 0 / 90%),
    0 0 0 2px rgb(0 255 153 / 10%),
    0 18px 48px rgb(0 153 255 / 20%),
    inset 0 0 18px rgb(0 153 255 / 5%);
  animation: modalScaleIn 0.3s var(--easing-elastic); /* Uses .panel-scale-in animation */
  transform-origin: center;

  /* PHASE 7: GPU acceleration via .gpu-accelerate utility class (apply in HTML/JS) */

  /* OPTIMIZED: CSS containment - isolate modal dialog rendering */
  contain: layout style paint;
}

.wb-modal-dialog::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    #09F 20%, 
    #0F9 50%, 
    #09F 80%, 
    transparent 100%);
  opacity: 0.6;
  border-radius: 18px 18px 0 0;
}

@keyframes modalScaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

.wb-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--blue-opacity-30);
}

.wb-modal-header span {
  font-weight: 700;
  font-size: 18px;
  color: #CCC;
  text-shadow: 0 0 12px rgb(0 153 255 / 60%);
  letter-spacing: 0.03em;
}

/* Consolidated: Uses .flex-grow utility */
.wb-modal-body,
.flex-grow.wb-modal-body {
  /* flex: 1; min-height: 0; now from .flex-grow */
  min-height: 200px; /* Keep component-specific min-height */
  overflow-y: auto;
  padding-right: 4px;
}

/* Stage Management Modal - Inline View Transitions
 * All transition durations and transform values follow 3-6-9 digital root rule:
 * - 0.3s = 300ms (digital root: 3)
 * - 30px (digital root: 3)
 */
.stage-management-view {
  transition: opacity 0.3s var(--easing-standard), transform 0.3s var(--easing-standard);

  /* OPTIMIZED: will-change removed - apply conditionally when transitioning */
}

/* Apply will-change only when transitioning */
.stage-management-view[data-transitioning="true"] {
  will-change: opacity, transform;
}

#stageConfigFormView {
  opacity: 0;
  transform: translateX(30px); /* 30px: digital root = 3 */
  pointer-events: none;
}

#stageConfigFormView.active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: all;
}

#stageManagementListView {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.3s var(--easing-standard), transform 0.3s var(--easing-standard);
}

#stageManagementListView.hiding {
  opacity: 0;
  transform: translateX(-30px); /* 30px: digital root = 3 */
}

.wb-modal-body::-webkit-scrollbar {
  width: 8px;
}

.wb-modal-body::-webkit-scrollbar-track {
  background: var(--space-mid-opacity-92);
  border-radius: 4px;
}

.wb-modal-body::-webkit-scrollbar-thumb {
  background: var(--slate-opacity-50);
  border-radius: 4px;
}

.wb-modal-body::-webkit-scrollbar-thumb:hover {
  background: var(--slate-opacity-70);
}

.wb-modal-body textarea {
  width: 100%;
  height: 100%;
  min-height: 260px;
  resize: vertical;
  background: var(--space-mid-opacity-92);
  border: 1px solid var(--slate-opacity-30);
  color: #e2e8f0;
  border-radius: 8px;
  padding: 12px;
  font-family: 'Courier New', monospace;
}

.wb-modal-footer {
  margin-top: 18px;
  padding-top: 12px;
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  border-top: 2px solid var(--blue-opacity-30);
}

.icon-btn {
  border: none;
  background: transparent;
  color: #9ca3af;
  cursor: pointer;
  padding: 0.1rem 0.35rem;
  border-radius: 0.35rem;
}

.icon-btn:hover {
  background: var(--blue-opacity-15);
  color: var(--cyan-bright);
  border-color: var(--blue-electric);
  box-shadow: 0 0 12px var(--blue-opacity-40);
}

/* Context layout grid enhancements */
.layout-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

/* ============================================================================
   BASE LAYOUT UTILITY CLASSES - Consolidated common layout patterns
   ============================================================================ */

/* Flexbox Column Container - Most common pattern for panels/sections */
.flex-col {
  display: flex;
  flex-direction: column;
}

/* Flexbox Column with Scroll - For scrollable content areas */
.flex-col-scroll {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: auto;
}

/* Flexbox Column with Hidden Overflow - For clipped containers */
.flex-col-hidden {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

/* Flexbox Center Alignment - For centering content */
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Flexbox Row with Center Alignment - Common for toolbars/headers */
.flex-row-center {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

/* Flexbox Row with Space Between - For headers with left/right content */
.flex-row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Flexbox Row with Gap - Generic row with gap */
.flex-row {
  display: flex;
  align-items: center;
}

/* Flex Grow - Fill available space */
.flex-grow {
  flex: 1;
  min-height: 0;
}

/* Flex Grow and Shrink - Flexible container that can grow and shrink */
.flex-grow-shrink {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
}

/* Flex No Shrink - Prevent shrinking */
.flex-no-shrink {
  flex-shrink: 0;
}

/* Full Size Container - 100% width and height */
.full-size {
  width: 100%;
  height: 100%;
}

/* Full Size with Flex - Common for root containers */
.full-size-flex {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-height: 0;
}

/* Box Sizing Border Box - Ensure consistent sizing */
.box-border {
  box-sizing: border-box;
}

/* ============================================================================
   BASE FORM INPUT STYLES - Consolidated common form element styles
   ============================================================================ */

/* Base form input/textarea/select styles - shared across all form components
   Apply these styles to: .form-field-row input, .lookup-preview select, 
   .field-group input/textarea/select, etc. */
.form-input-base,
.form-field-row input,
.lookup-preview select,
.field-group input[type="text"],
.field-group input[type="number"],
.field-group textarea {
  width: 100%;
  border-radius: var(--space-6);
  border: 2px solid var(--blue-opacity-30);
  background: var(--space-opacity-80);
  padding: var(--space-9) var(--space-12);
  font-size: var(--font-12);
  color: var(--text-primary);
  transition: all var(--timing-fast);
  box-shadow: 0 0 var(--space-6) var(--blue-opacity-10);
  outline: none;
  font-family: inherit;
  box-sizing: border-box;
}

.form-input-base:focus,
.form-field-row input:focus,
.lookup-preview select:focus,
.field-group input[type="text"]:focus,
.field-group input[type="number"]:focus,
.field-group textarea:focus {
  border-color: var(--blue-electric);
  box-shadow: 
    0 0 0 2px rgb(0 153 255 / 30%),
    0 0 var(--space-12) var(--glow-blue);
  background: var(--blue-opacity-10);
}

.form-input-base:hover:not(:focus),
.form-field-row input:hover:not(:focus),
.lookup-preview select:hover:not(:focus),
.field-group input[type="text"]:hover:not(:focus),
.field-group input[type="number"]:hover:not(:focus),
.field-group textarea:hover:not(:focus) {
  border-color: rgb(0 153 255 / 60%);
  box-shadow: 0 0 var(--space-9) var(--blue-opacity-20);
}

/* Variant: Larger border radius (for .field-group) */
.field-group input[type="text"],
.field-group input[type="number"],
.field-group textarea {
  border-radius: var(--space-9);
}

/* Variant: Select with gradient background (for .field-group select) */
.field-group select {
  width: 100%;
  border-radius: var(--space-9);
  border: 2px solid var(--blue-opacity-40);
  background: linear-gradient(135deg, var(--space-opacity-95) 0%, var(--space-mid-alt-opacity-60) 100%);
  box-shadow: 
    0 18px 48px rgb(0 0 0 / 90%),
    0 0 36px rgb(0 153 255 / 20%);
  padding: var(--space-9) var(--space-12);
  font-size: var(--font-12);
  color: var(--text-primary);
  font-family: inherit;
  cursor: pointer;
  transition: all var(--timing-fast);
  outline: none;
}

.field-group select:hover {
  border-color: rgb(0 153 255 / 60%);
  box-shadow: 
    0 18px 48px rgb(0 0 0 / 90%),
    0 0 48px rgb(0 153 255 / 30%);
  background: linear-gradient(135deg, var(--space-dark) 0%, var(--space-mid) 100%);
}

.field-group select:focus {
  border-color: var(--blue-electric);
  box-shadow: 
    0 18px 48px rgb(0 0 0 / 90%),
    0 0 48px rgb(0 153 255 / 40%),
    0 0 var(--space-24) var(--glow-blue);
  background: linear-gradient(135deg, var(--space-dark) 0%, var(--space-mid) 100%);
}

/* Select dropdown options styling */
.field-group select option {
  background: var(--space-dark);
  color: var(--text-primary);
  padding: var(--space-9);
  font-size: var(--font-12);
}

.field-group select optgroup {
  background: var(--space-mid);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: var(--font-9);
  padding: var(--space-6) var(--space-9);
}

/* Textarea specific */
textarea.form-input-base,
.field-group textarea {
  resize: vertical;
  min-height: 60px;
}

/* Connect Data element previews */
.form-preview {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-field-row {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6) 0;
}

.form-field-row label {
  font-size: var(--font-12);
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.page-preview {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}


/* Position grid for object anchor */
.position-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2px;
  margin-top: 0.35rem;
  max-width: 80px;
}

.pos-cell {
  width: 20px;
  height: 20px;
  border-radius: 0.35rem;
  border: 1px solid #1f2937;
  background: #020617;
  cursor: pointer;
}

.pos-cell.active {
  border-color: #4f46e5;
  box-shadow: 0 0 0 1px rgb(79 70 229 / 60%);
}

/* Multiselect styling for Connect Data fields */
.wb-multiselect {
  width: 100%;
  min-height: 120px;
  border-radius: var(--space-9);
  border: 2px solid var(--blue-opacity-30);

  /* OPTIMIZED: Removed backdrop-filter - nested form element doesn't need it */
  background: var(--space-opacity-80);
  padding: var(--space-9) var(--space-12);
  font-size: var(--font-12);
  color: var(--text-primary);
  transition: all var(--timing-fast);
  box-shadow: 0 0 var(--space-6) var(--blue-opacity-10);
}

.wb-multiselect:focus {
  outline: none;
  border-color: var(--blue-electric);
  box-shadow: 
    0 0 0 2px rgb(0 153 255 / 30%),
    0 0 var(--space-12) var(--glow-blue);
  background: var(--blue-opacity-10);
}

.wb-multiselect option {
  padding: var(--space-6) var(--space-9);
  background: var(--space-deep);
  color: var(--text-primary);
}

/* Export modal: checkbox-based multi-select for manifest params */
.export-manifest-multiselect {
  min-height: 100px;
  max-height: 180px;
  overflow-y: auto;
  border-radius: var(--space-9);
  border: 2px solid var(--blue-opacity-30);
  background: var(--space-opacity-80);
  padding: var(--space-9) var(--space-12);
  font-size: var(--font-12);
  color: var(--text-primary);
}

.export-manifest-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0;
  cursor: pointer;
  word-break: break-word;
}

.export-manifest-option input[type="checkbox"] {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  cursor: pointer;
  accent-color: var(--blue-electric, #09f);
}

.export-manifest-option:hover {
  color: var(--cyan-bright, #22d3ee);
}

.export-manifest-multiselect-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.export-manifest-search {
  width: 100%;
  padding: 0.4rem 0.5rem;
  font-size: var(--font-12);
  border-radius: var(--space-9);
  border: 2px solid var(--blue-opacity-30);
  background: var(--space-opacity-80);
  color: var(--text-primary);
}

.export-manifest-search::placeholder {
  color: var(--text-muted);
}

.export-manifest-search:focus {
  outline: none;
  border-color: var(--blue-electric, #09f);
}

.export-manifest-selected {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  min-height: 1.5rem;
  font-size: var(--font-11);
}

.export-manifest-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.4rem;
  border-radius: var(--space-9);
  background: var(--blue-opacity-20);
  border: 1px solid var(--blue-opacity-40);
  color: var(--text-primary);
}

.export-manifest-chip-label {
  max-width: 12rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.export-manifest-chip-remove {
  flex-shrink: 0;
  padding: 0 0.2rem;
  font-size: 1rem;
  line-height: 1;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
}

.export-manifest-chip-remove:hover {
  color: var(--red-400, #f87171);
}

/* Modern multiselect for Connect Data fields */
.wb-fields-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
}

.wb-fields-title {
  font-size: var(--font-12);
  font-weight: 600;
  color: var(--text-primary);
}

.wb-fields-actions {
  display: flex;
  gap: var(--space-6);
}

.btn-ghost-small {
  border: 2px solid transparent;
  background: transparent;
  font-size: var(--font-9);
  color: var(--text-secondary);
  padding: var(--space-3) var(--space-9);
  border-radius: var(--space-27);
  cursor: pointer;
  transition: all var(--timing-fast);
}

.btn-ghost-small:hover {
  background: var(--blue-opacity-15);
  color: var(--cyan-bright);
  border-color: var(--glow-blue);
  box-shadow: 0 0 var(--space-9) var(--blue-opacity-20);
}

.wb-selected-fields {
  margin-bottom: var(--space-6);
}

.wb-selected-label {
  font-size: var(--font-12);
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  font-weight: 600;
  letter-spacing: 0.03em;
}

.wb-selected-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.wb-field-chip {
  border: 2px solid var(--purple-neon);
  border-radius: var(--space-27);
  padding: var(--space-3) var(--space-12);
  font-size: var(--font-9);
  background: rgb(102 0 255 / 20%);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--timing-fast);
  box-shadow: 0 0 var(--space-6) rgb(102 0 255 / 20%);
}

.wb-field-chip:hover {
  background: rgb(102 0 255 / 40%);
  border-color: var(--purple-bright);
  box-shadow: 0 0 var(--space-12) rgb(102 0 255 / 60%);
  transform: translateY(-2px);
}

.wb-field-chip:hover {
  background: rgb(79 70 229 / 35%);
}

.wb-field-list {
  max-height: 180px;
  padding-right: 4px;
}

/* Scrollable but no visible scrollbar */
.modern-scroll {
  overflow-y: auto;
  scrollbar-width: none;

  /* Firefox */
  -ms-overflow-style: none;

  /* IE/Edge */
}

.modern-scroll::-webkit-scrollbar {
  width: 0;
  height: 0;
}

.wb-field-group {
  border-radius: 0.4rem;
  border: 1px solid #1f2937;
  margin-bottom: 0.25rem;
  overflow: hidden;
}

.wb-field-group-header {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.4rem;
  font-size: 0.75rem;
  background: #020617;
  color: #9ca3af;
}

.wb-field-group-toggle {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 0.75rem;
  color: #9ca3af;
  padding: 0;
}

.wb-field-group-body {
  padding: 0.2rem 0.4rem 0.3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.wb-field-group:not(.expanded) .wb-field-group-body {
  display: none;
}

.wb-field-pill {
  border-radius: 999px;
  border: 1px solid #1f2937;
  background: #020617;
  color: #e5e7eb;
  padding: 0.1rem 0.45rem;
  font-size: 0.7rem;
  cursor: pointer;
}

.wb-field-pill:hover {
  border-color: #4f46e5;
  box-shadow: 0 0 0 1px rgb(79 70 229 / 40%);
}

/* REMOVED: Bottom panel expansion styles and duplicate .bottom-tabs styles - bottom panel no longer used */


.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.35rem;
  font-size: 1em;
}

/* CLI-style log modal */
#logModal .wb-modal-dialog {
  max-width: 760px;
  background: radial-gradient(circle at top left, var(--space-deep), var(--space-deep) 40%, var(--space-dark) 100%);
  border: 2px solid var(--green-opacity-40);
  box-shadow: 
    0 27px 81px rgb(0 0 0 / 90%),
    0 0 54px rgb(0 255 153 / 30%);
}

#logModal .wb-modal-header span {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: var(--font-12);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--green-ghost);
  text-shadow: 0 0 12px rgb(0 255 153 / 60%);
  font-weight: 700;
}

/* Log tabs */
.log-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
  border-bottom: 2px solid var(--blue-opacity-30);
  padding-bottom: 9px;
}

.log-tab {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 18px;
  background: transparent;
  border: 2px solid transparent;
  border-radius: 9px;
  color: var(--text-muted);
  font-size: var(--font-12);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.log-tab:hover {
  background: var(--blue-opacity-10);
  color: var(--text-secondary);
  border-color: var(--blue-opacity-30);
}

.log-tab.active {
  background: rgb(255 51 0 / 15%);
  border-color: var(--error-red);
  color: #f66;
  box-shadow: 0 0 18px rgb(255 51 0 / 30%);
}

.log-tab[data-tab="success"].active {
  background: var(--green-opacity-15);
  border-color: var(--green-ghost);
  color: var(--green-ghost);
  box-shadow: 0 0 18px var(--green-opacity-30);
}

.log-tab-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.25rem;
  padding: 0 0.375rem;
  background: rgb(17 24 39 / 60%);
  border-radius: 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: #9ca3af;
}

.log-tab.active .log-tab-count {
  background: rgb(0 0 0 / 40%);
}

.log-tab[data-tab="errors"].active .log-tab-count {
  color: #fca5a5;
  background: var(--red-error-opacity-15);
}

.log-tab[data-tab="success"].active .log-tab-count {
  color: #6ee7b7;
  background: rgb(16 185 129 / 20%);
}

#logModalOutput {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  background: var(--space-deep);
  color: var(--green-ghost);
  border-radius: 9px;
  border: 2px solid var(--green-opacity-30);
  padding: 12px;
  font-size: var(--font-12);
  line-height: 1.5;
  box-shadow: 
    inset 0 0 0 2px rgb(0 255 153 / 10%),
    0 0 18px rgb(0 255 153 / 20%);
  text-shadow: 0 0 6px rgb(0 255 153 / 40%);
}

#logModalOutput::placeholder {
  color: var(--text-muted);
}


/* MANDATORY: File · Data CRUD styles (current prompt set) */
.data-crud-dialog {
  max-width: 880px;
}

.data-crud-layout {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 1.25rem;
  align-items: flex-start;
}

.data-crud-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.data-crud-field .field-label {
  display: block;
  font-size: var(--font-12);
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 9px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.data-crud-field input[type="text"] {
  width: 100%;
  padding: 9px 12px;
  border-radius: 9px;
  border: 2px solid var(--blue-opacity-30);
  background: var(--space-opacity-60);
  backdrop-filter: blur(12px);
  font-size: var(--font-12);
  color: var(--text-primary);
  transition: all 0.3s ease;
  box-shadow: 0 0 6px rgb(0 153 255 / 10%);
}

.data-crud-field input[type="text"]:focus {
  outline: none;
  border-color: var(--blue-electric);
  box-shadow: 
    0 0 12px var(--blue-opacity-40),
    0 0 24px var(--blue-opacity-20);
  background: var(--blue-opacity-05);
}

.field-hint {
  font-size: var(--font-9);
  color: var(--text-secondary);
  margin-top: 6px;
  line-height: 1.5;
}

/* Export Modal Specific Styles - Enhanced Visibility */
#exportModal .field-group label {
  font-size: var(--font-12);
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  display: block;
}

#exportModal .field-group select,
#exportModal .field-group input[type="text"] {
  font-size: var(--font-12);
  color: var(--text-primary);
}

#exportModal .field-group select option {
  background: var(--space-dark);
  color: var(--text-primary);
  padding: 9px;
  font-size: var(--font-12);
  font-weight: 500;
}

#exportModal .field-group select optgroup {
  background: var(--space-mid);
  color: var(--blue-electric);
  font-weight: 700;
  font-size: var(--font-11);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

#exportModal .muted.small {
  color: var(--text-secondary);
  font-size: var(--font-10);
}

.data-crud-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.data-crud-results {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 320px;
}

.data-crud-results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.data-crud-results-list {
  border-radius: 9px;
  border: 2px solid var(--blue-opacity-30);
  background: var(--space-opacity-60);
  backdrop-filter: blur(12px);
  padding: 9px;
  overflow: auto;
  flex: 1;
  min-height: 140px;
  box-shadow: 0 0 9px rgb(0 153 255 / 10%);
}

.data-crud-results-list::-webkit-scrollbar {
  width: 9px;
}

.data-crud-results-list::-webkit-scrollbar-track {
  background: var(--space-opacity-60);
}

.data-crud-results-list::-webkit-scrollbar-thumb {
  background: rgb(0 153 255 / 40%);
  border-radius: 6px;
}

.data-crud-results-list::-webkit-scrollbar-thumb:hover {
  background: rgb(0 153 255 / 60%);
  box-shadow: 0 0 9px rgb(0 153 255 / 60%);
}

.data-crud-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 12px;
  border-radius: 9px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  margin-bottom: 3px;
}

.data-crud-row:hover {
  background: var(--blue-opacity-10);
  border-color: var(--blue-opacity-30);
  box-shadow: 0 0 12px rgb(0 153 255 / 20%);
}

.data-crud-row.selected {
  background: var(--blue-opacity-20);
  border-color: var(--blue-electric);
  box-shadow: 0 0 18px rgb(0 153 255 / 30%);
}

.data-crud-main {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.data-crud-title {
  font-size: 0.9rem;
  font-weight: 500;
  color: #111827;
}

.data-crud-meta {
  font-size: 0.75rem;
  color: #6b7280;
}

.data-crud-row-actions {
  display: flex;
  gap: 0.4rem;
}

.data-crud-empty {
  font-size: 0.8rem;
  color: #6b7280;
  padding: 0.4rem;
}

.data-crud-help {
  margin-top: 0.25rem;
}

/* ============================================================================
 * PROGRESS OVERLAY STYLES - FLOATING OVERLAY (LOCKED - DO NOT MODIFY)
 * ============================================================================
 * These styles create a full-screen floating overlay with a centered progress card.
 * The overlay appears when saving widgets and shows progress through stages.
 * 
 * CRITICAL: Do not change z-index (10000), display (flex), or positioning.
 * These are required for the overlay to appear above all other content.
 * ============================================================================ */
.progress-overlay {
  position: fixed;
  inset: 0;
  background: rgb(0 0 0 / 70%);
  backdrop-filter: blur(4px);
  z-index: var(--z-progress);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;

  /* OPTIMIZED: CSS containment - isolate progress overlay */
  contain: strict;
}

.progress-overlay-content {
  background: linear-gradient(135deg, var(--space-deep) 0%, var(--space-mid) 100%);
  backdrop-filter: blur(18px);
  border: 2px solid var(--blue-opacity-40);
  border-radius: 12px;
  padding: 27px;
  min-width: 400px;
  max-width: 500px;
  box-shadow: 
    0 24px 60px rgb(0 0 0 / 90%),
    0 0 36px rgb(0 153 255 / 30%);
}

#dataCrudProgressContainer {
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.progress-close-btn {
  background: transparent;
  border: 1px solid var(--blue-opacity-40);
  border-radius: 6px;
  color: var(--text-primary);
  cursor: pointer;
  font-size: var(--font-18);
  font-weight: 700;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all var(--timing-fast) ease;
  line-height: 1;
}

.progress-close-btn:hover {
  background: rgb(255 0 0 / 20%);
  border-color: rgb(255 0 0 / 50%);
  color: #f66;
  transform: scale(1.1);
}

.progress-close-btn:active {
  transform: scale(0.95);
}

.progress-title {
  font-size: var(--font-18);
  font-weight: 700;
  color: var(--text-primary);
  text-shadow: 0 0 9px rgb(0 153 255 / 30%);
}

.progress-percentage {
  font-size: var(--font-18);
  font-weight: 700;
  color: var(--cyan-bright);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  text-shadow: 0 0 12px rgb(51 204 255 / 60%);
}

.progress-bar-container {
  width: 100%;
  height: 9px;
  background: var(--space-opacity-80);
  border-radius: 9px;
  overflow: hidden;
  margin-bottom: 18px;
  border: 2px solid var(--blue-opacity-30);
  box-shadow: inset 0 0 9px var(--blue-opacity-20);
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--blue-electric) 0%, var(--cyan-bright) 50%, var(--green-ghost) 100%);
  border-radius: 9px;
  width: 0%;
  transition: width 0.3s ease;
  box-shadow: 0 0 12px var(--blue-opacity-60);
}

.progress-stages {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.progress-stage {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  border-radius: 0.375rem;
  background: var(--space-mid-opacity-92);
  transition: all 0.2s ease;
}

.progress-stage.active {
  background: rgb(59 130 246 / 15%);
  border: 1px solid rgb(59 130 246 / 30%);
}

.progress-stage.completed {
  background: rgb(16 185 129 / 10%);
  border: 1px solid rgb(16 185 129 / 20%);
}

.progress-stage.error {
  background: rgb(239 68 68 / 15%);
  border: 1px solid rgb(239 68 68 / 30%);
}

.stage-icon {
  font-size: 1rem;
  width: 1.25rem;
  text-align: center;
  flex-shrink: 0;
}

.stage-label {
  font-size: 0.85rem;
  color: #9ca3af;
  flex: 1;
}

.progress-stage.active .stage-label {
  color: #60a5fa;
  font-weight: 500;
}

.progress-stage.completed .stage-label {
  color: #6ee7b7;
}

.progress-stage.error .stage-label {
  color: #fca5a5;
}

/* Button helpers for Data CRUD */

.btn.small {
  padding: 0.15rem 0.5rem;
  font-size: 0.8rem;
}

.btn.ghost.danger {
  border-color: transparent;
  color: #b91c1c;
}

.btn.ghost.danger:hover {
  background: #fee2e2;
}


/* -------------------------
   Blueprint Visual UI Styles
   ------------------------- */

.blueprint-toolbar {
  position: absolute;
  z-index: var(--z-popover);
  display: flex;
  gap: 0.5rem;
  background: var(--space-mid-opacity-92);
  padding: 0.5rem;
  border-radius: 8px;
  border: 1px solid #374151;
}

/* Parameters Manager */
.params-list {
  background: var(--space-opacity-60);
  border: 2px solid var(--space-mid);
  border-radius: var(--space-9);
  padding: var(--space-9);
  backdrop-filter: blur(12px);
}

.param-item {
  transition: background var(--timing-fast);
  border-radius: var(--space-6);
  padding: var(--space-6) var(--space-9);
  margin-bottom: var(--space-6);
}

/* PHASE 7: Removed !important - selector already has sufficient specificity */
.param-item:hover {
  background: var(--blue-opacity-15);
  border-color: var(--blue-electric);
  box-shadow: 0 0 var(--space-9) var(--blue-opacity-20);
}

.badge {
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  color: #fff;
  text-transform: uppercase;
}

/* Blueprint Connections */
.blueprint-connection {
  fill: none;
  stroke: #64748b;
  stroke-width: 2px;
  cursor: pointer;
  transition: stroke 0.2s, stroke-width 0.2s;
}

.blueprint-connection:hover {
  stroke: #6366f1;
  stroke-width: 3px;
}

.blueprint-connection.selected {
  stroke: #6366f1;
  stroke-width: 3px;
  filter: drop-shadow(0 0 4px var(--purple-indigo-opacity-30));
}

/* Connection Drag Line */
#dragLine {
  pointer-events: none;
}


/* ============================================================================
   PRINT STYLES - Optimize for printing
   ============================================================================ */
@media print {
  /* Hide non-printable elements */
  .app-header,
  aside.sidebar,
  section.agents-chat,
  .ai-thread-history-section,
  .canvas-zoom-controls,
  .btn,
  button,
  .context,
  .bottom-panel {
    display: none !important;
  }
  
  /* Reset backgrounds for print */
  * {
    background: white !important;
    color: black !important;
    text-shadow: none !important;
    box-shadow: none !important;
  }
  
  body,
  html,
  #app {
    background: white !important;
    height: auto;
    overflow: visible;
  }
  
  main.layout {
    display: block !important;
    padding: 0;
    margin: 0;
    gap: 0;
    background: white !important;
  }
  
  /* Optimize canvas for printing */
  section.canvas {
    width: 100% !important;
    max-width: none !important;
    border: 2px solid #000;
    border-radius: 0;
    page-break-inside: avoid;
    margin-bottom: 20px;
  }
  
  .canvas-header {
    background: white !important;
    border-bottom: 2px solid #000;
    padding: 10px;
  }
  
  .canvas-body {
    background: white !important;
    padding: 20px;
  }
  
  /* Optimize elements for printing */
  .field-card {
    border: 1px solid #666 !important;
    background: white !important;
    page-break-inside: avoid;
    margin-bottom: 10px;
    box-shadow: none !important;
  }
  
  .element-header {
    background: #f0f0f0 !important;
    border-bottom: 1px solid #666;
  }
  
  /* Page breaks */
  .field-card {
    page-break-inside: avoid;
  }
  
  .canvas-element {
    page-break-inside: avoid;
  }
  
  /* Print-specific typography */
  body {
    font-size: 12pt;
    line-height: 1.4;
  }
  
  h1 {
    font-size: 18pt;
  }
  
  h2,
  h3 {
    font-size: 14pt;
  }
}