/* Studio Image Editor & Masking Suite - UI Components */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  font-family: inherit;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-blue);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--accent-blue-hover);
  box-shadow: 0 0 14px var(--accent-blue-glow);
}

.btn-secondary {
  background: var(--bg-panel-hover);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}
.btn-secondary:hover {
  background: var(--bg-panel-active);
  border-color: var(--border-medium);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: var(--bg-panel-hover);
  color: var(--text-primary);
}

.btn-ruby {
  background: var(--accent-ruby);
  color: #fff;
}
.btn-ruby:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 14px var(--accent-ruby-glow);
}

.btn-emerald {
  background: var(--accent-emerald);
  color: #fff;
}

.btn-icon {
  width: 30px;
  height: 30px;
  padding: 0;
  border-radius: var(--radius-sm);
}

.btn-sm {
  padding: 4px 8px;
  font-size: 11px;
}

.btn-group {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}

.btn-group .btn-segmented {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 500;
  border-radius: calc(var(--radius-sm) - 2px);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-group .btn-segmented:hover {
  color: var(--text-primary);
}

.btn-group .btn-segmented.active {
  background: var(--accent-blue);
  color: #fff;
  font-weight: 600;
}

/* Inputs & Form Controls */
.input-control {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 12px;
  padding: 6px 10px;
  outline: none;
  font-family: inherit;
  transition: border-color var(--transition-fast);
  width: 100%;
}

.input-control:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 1px var(--accent-blue);
}

.input-control.mono {
  font-family: var(--font-mono);
}

select.input-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 28px;
}

/* Custom Range Sliders */
.slider-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-secondary);
}

.slider-val-badge {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 11px;
  font-weight: 600;
  min-width: 32px;
  text-align: right;
}

.slider-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border-subtle);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  background: var(--accent-blue);
}

/* Layer Stack Components */
.layer-list-container {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 240px;
  overflow-y: auto;
  border: 1px solid var(--border-subtle);
  background: var(--bg-input);
  border-radius: var(--radius-md);
  padding: 4px;
}

.layer-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  background: var(--bg-panel);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.layer-item:hover {
  background: var(--bg-panel-hover);
}

.layer-item.active {
  background: var(--bg-panel-active);
  border-color: var(--accent-blue);
}

.layer-visibility-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.layer-visibility-btn:hover {
  color: var(--text-primary);
}
.layer-visibility-btn.hidden-layer {
  opacity: 0.3;
}

.layer-thumbnail-box {
  width: 36px;
  height: 36px;
  border-radius: 4px;
  background: #1a202c;
  border: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.layer-thumbnail-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.layer-mask-badge {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 14px;
  height: 14px;
  background: var(--accent-ruby);
  color: #fff;
  font-size: 8px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top-left-radius: 3px;
}

.layer-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.layer-name-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.layer-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layer-meta {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.layer-actions-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 6px;
  border-top: 1px solid var(--border-subtle);
}

/* Quick Action Chips */
.action-chips-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.action-chip {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.action-chip:hover {
  background: var(--bg-panel-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.action-chip.ruby:hover {
  border-color: var(--accent-ruby);
  color: var(--accent-ruby);
}

/* Aspect Ratio / Resize Controls */
.dimension-input-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto;
  align-items: center;
  gap: 8px;
}

.aspect-lock-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.aspect-lock-btn.locked {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
}

/* Export Modal Specifics */
.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-footer {
  padding: 14px 20px;
  background: var(--bg-app);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.export-card-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.export-option-card {
  background: var(--bg-input);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.export-option-card:hover {
  background: var(--bg-panel-hover);
  border-color: var(--border-medium);
}

.export-option-card.active {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.08);
}

.export-option-card.comfy.active {
  border-color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.08);
}

.export-card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.export-card-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.export-preview-box {
  background: var(--bg-canvas-wrapper);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.export-stats-col {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.export-filesize-badge {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-emerald);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: rgba(17, 22, 34, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 12px;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toastSlide 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast a,
.toast button {
  pointer-events: auto !important;
  cursor: pointer !important;
}

.toast.success {
  border-left: 4px solid var(--accent-emerald);
}
.toast.info {
  border-left: 4px solid var(--accent-blue);
}
.toast.warning {
  border-left: 4px solid var(--accent-amber);
}

@keyframes toastSlide {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Sample Images Gallery Grid */
.sample-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.sample-card {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.sample-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-md);
}

.sample-card-img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  background: #000;
}

.sample-card-info {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sample-card-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
}

.sample-card-desc {
  font-size: 10px;
  color: var(--text-muted);
}

/* Pixel Loupe / Precision Magnifier HUD Card */
.loupe-hud-card {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 170px;
  background: rgba(15, 20, 30, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 0, 0, 0.6);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 60;
  user-select: none;
  pointer-events: auto;
  transition: opacity var(--transition-fast);
}

.loupe-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--accent-cyan);
}

.loupe-canvas-container {
  width: 150px;
  height: 150px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  overflow: hidden;
  position: relative;
  background: #000;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.8);
}

#loupeCanvas {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
}

.loupe-crosshair-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loupe-crosshair-overlay::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 2px #000;
}

.loupe-crosshair-overlay::after {
  content: '';
  position: absolute;
  height: 100%;
  width: 1px;
  background: rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 2px #000;
}

.loupe-center-dot {
  width: 8px;
  height: 8px;
  border: 1.5px solid #f43f5e;
  border-radius: 50%;
  position: absolute;
  box-shadow: 0 0 4px rgba(244, 63, 94, 0.8);
  z-index: 2;
}

.loupe-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 10px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.loupe-color-badge {
  display: flex;
  align-items: center;
  gap: 4px;
}

.loupe-color-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: #000;
}

/* Magazine Bridge Destination Cards */
.mag-target-card {
  background: var(--bg-input);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mag-target-card:hover {
  background: var(--bg-panel-hover);
  border-color: var(--border-medium);
}

.mag-target-card.active {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
}

.mag-card-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
}

.mag-target-card.active .mag-card-title {
  color: var(--accent-cyan);
}

.btn-quick-page {
  font-family: var(--font-mono);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-quick-page.active {
  background: var(--accent-cyan);
  color: #042f2e;
  border-color: var(--accent-cyan);
  font-weight: 800;
}

/* Universal Creative Studio Bridge Tabs & Controls */
.studio-app-tabs-bar {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 4px;
}

.studio-app-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 10px;
  font-size: 11px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.studio-app-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.studio-app-tab.active[data-app="magazine"] {
  background: linear-gradient(135deg, rgba(2, 132, 199, 0.2), rgba(37, 99, 235, 0.25));
  border-color: #38bdf8;
  color: #38bdf8;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.2);
}

.studio-app-tab.active[data-app="book"] {
  background: linear-gradient(135deg, rgba(217, 119, 6, 0.2), rgba(180, 83, 9, 0.25));
  border-color: #f59e0b;
  color: #f59e0b;
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.2);
}

.studio-app-tab.active[data-app="clothing"] {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.2), rgba(5, 150, 105, 0.25));
  border-color: #10b981;
  color: #10b981;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.2);
}

.app-bridge-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.color-swatch-picker {
  display: flex;
  gap: 6px;
  align-items: center;
}

.color-swatch-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
}

.color-swatch-btn:hover {
  transform: scale(1.15);
}

.color-swatch-btn.active {
  border-color: #fff;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
  transform: scale(1.1);
}

.color-key-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  border-radius: 12px;
  padding: 2px 7px;
  font-size: 10px;
  font-family: var(--font-mono);
  transition: border-color 0.15s, background 0.15s;
}
.color-key-chip:hover {
  border-color: var(--accent-cyan);
}
.color-key-chip .chip-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.3);
  display: inline-block;
  flex-shrink: 0;
}
.color-key-chip .chip-del {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 11px;
  padding: 0 1px;
  line-height: 1;
  display: flex;
  align-items: center;
  transition: color 0.15s;
}
.color-key-chip .chip-del:hover {
  color: var(--accent-ruby);
}

/* ==========================================================================
   Adobe Illustrator-Style Image Trace & Vectorizer Suite
   ========================================================================== */

.vectorizer-modal-card {
  max-width: 1020px;
  width: 95vw;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
}

.vectorizer-logo-badge {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 14px rgba(236, 72, 153, 0.4);
}

.badge-ai-mode {
  font-size: 9.5px;
  font-family: var(--font-mono);
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, rgba(236,72,153,0.2), rgba(139,92,246,0.2));
  color: #f472b6;
  border: 1px solid rgba(236,72,153,0.4);
  padding: 2px 7px;
  border-radius: 12px;
}

.trace-header-stats {
  display: flex;
  align-items: center;
  gap: 6px;
}

.trace-stat-pill {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 12px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: #38bdf8;
}

.trace-stat-pill.time {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.3);
  color: #22c55e;
}

/* Presets Ribbon */
.trace-presets-bar {
  display: flex;
  gap: 8px;
  padding: 10px 16px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  overflow-x: auto;
}

.trace-preset-card {
  flex: 1;
  min-width: 140px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.trace-preset-card:hover {
  border-color: var(--accent-blue);
  background: var(--bg-card);
  transform: translateY(-1px);
}

.trace-preset-card.active {
  border-color: #ec4899;
  background: linear-gradient(135deg, rgba(236,72,153,0.12), rgba(139,92,246,0.12));
  box-shadow: 0 0 12px rgba(236, 72, 153, 0.25);
}

.preset-icon {
  font-size: 16px;
}

.preset-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.preset-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
}

.preset-desc {
  font-size: 9.5px;
  color: var(--text-muted);
}

/* Vectorizer Modal Body Grid */
.vectorizer-body-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 16px;
  padding: 16px;
  overflow: hidden;
  min-height: 480px;
}

.trace-preview-column {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px;
  overflow: hidden;
}

.trace-preview-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-subtle);
}

.trace-view-mode-group {
  display: flex;
  gap: 4px;
}

.trace-view-mode-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.trace-view-mode-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.trace-view-mode-btn.active {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

.trace-preview-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #0b0f19;
  background-image: 
    linear-gradient(45deg, #131b2e 25%, transparent 25%),
    linear-gradient(-45deg, #131b2e 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #131b2e 75%),
    linear-gradient(-45deg, transparent 75%, #131b2e 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  min-height: 380px;
}

.trace-preview-wrapper {
  position: relative;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.trace-preview-raster {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
  display: block;
  border-radius: 4px;
}

.trace-preview-svg-box {
  max-width: 100%;
  max-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.trace-preview-svg-box svg {
  max-width: 100%;
  max-height: 400px;
  height: auto;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.5));
}

.trace-preview-wrapper.mode-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

.trace-preview-wrapper.mode-split img,
.trace-preview-wrapper.mode-split .trace-preview-svg-box svg {
  max-height: 360px;
  width: 100%;
  object-fit: contain;
}

.trace-split-divider {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 9.5px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: #38bdf8;
  pointer-events: none;
}

.trace-loading-spinner {
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 25, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 12px;
  color: #f472b6;
  font-weight: 600;
  z-index: 10;
}

.trace-controls-column {
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
}

.trace-panel-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.trace-section-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}

.trace-checkbox-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.trace-checkbox-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
  cursor: pointer;
}

.trace-palette-swatches-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  max-height: 90px;
  overflow-y: auto;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px;
}

.trace-palette-chip {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: transform 0.15s;
}

.trace-palette-chip:hover {
  transform: scale(1.3);
  z-index: 2;
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.5);
}

.trace-modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
}

/* Vector Dimension & Unit Converter UI */
.badge-dpi-readout {
  font-size: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: #38bdf8;
}

.trace-dimension-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.trace-conversion-summary {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  font-size: 10.5px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  text-align: center;
}

.trace-conversion-summary strong {
  color: var(--accent-cyan);
}

/* ==========================================================================
   Studio Drawing, Illustration, Shapes & Typography Suite
   ========================================================================== */

.paint-tool-deck {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
}

.paint-mode-btn {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: var(--text-secondary);
  font-size: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.paint-mode-btn:hover {
  background: var(--bg-card);
  border-color: var(--accent-blue);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.paint-mode-btn.active {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2), rgba(139, 92, 246, 0.2));
  border-color: var(--accent-blue);
  color: #60a5fa;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.25);
}

/* MS Paint Overlapping Color Deck */
.paint-color-deck-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  margin-bottom: 8px;
}

.paint-color-box {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card);
  border: 1.5px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex: 1;
}

.paint-color-box:hover {
  border-color: var(--accent-blue);
  background: var(--bg-panel-hover);
}

.paint-color-box.active {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.3);
}

.paint-color-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
  white-space: nowrap;
}

.paint-color-box.active .paint-color-label {
  color: #38bdf8;
}

.paint-color-chip {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  flex-shrink: 0;
}

.paint-swap-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.paint-swap-btn:hover {
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  transform: rotate(180deg);
}

.paint-swatches-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  flex: 1;
}

.paint-swatch-btn {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 3px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
  padding: 0;
}

.paint-swatch-btn:hover {
  transform: scale(1.25);
  z-index: 5;
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.6);
}

/* Shapes Grid */
.paint-shapes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}

.paint-shape-chip {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px 2px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.paint-shape-chip:hover {
  border-color: var(--accent-cyan);
  color: var(--text-primary);
  background: var(--bg-card);
}

.paint-shape-chip.active {
  border-color: #06b6d4;
  background: rgba(6, 182, 212, 0.15);
  color: #22d3ee;
  box-shadow: 0 0 8px rgba(6, 182, 212, 0.25);
}

.paint-transform-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

/* ==========================================================================
   On-Screen Interactive Text Box & Typographer
   ========================================================================== */

.canvas-inline-text-editor {
  position: absolute;
  z-index: 99;
  display: flex;
  flex-direction: column;
  pointer-events: auto;
  user-select: none;
  min-width: 140px;
}

.canvas-inline-text-handle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(56, 189, 248, 0.5);
  border-radius: 4px 4px 0 0;
  padding: 3px 8px;
  font-size: 10px;
  font-weight: 700;
  color: #38bdf8;
  cursor: grab;
  backdrop-filter: blur(6px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.canvas-inline-text-handle:active {
  cursor: grabbing;
}

.canvas-text-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.canvas-text-btn-commit {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #ffffff;
  border: none;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  cursor: pointer;
  transition: all 0.12s;
  display: flex;
  align-items: center;
  gap: 2px;
}

.canvas-text-btn-commit:hover {
  background: #10b981;
  transform: scale(1.05);
}

.canvas-text-btn-cancel {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  cursor: pointer;
  transition: all 0.12s;
}

.canvas-text-btn-cancel:hover {
  background: #ef4444;
  color: #ffffff;
}

.canvas-inline-text-box {
  background: rgba(15, 23, 42, 0.35);
  border: 1.5px dashed #38bdf8;
  border-top: none;
  border-radius: 0 0 4px 4px;
  padding: 6px 8px;
  color: #ffffff;
  min-width: 140px;
  min-height: 40px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.25;
  resize: both;
  overflow: auto;
  user-select: text;
  caret-color: #38bdf8;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  outline: none;
}

.canvas-inline-text-box:focus {
  background: rgba(15, 23, 42, 0.55);
  border-color: #00e5ff;
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.4);
}

/* ==========================================================================
   AI Graphic Design Studio Modal (Compact & Proportional Responsive Layout)
   ========================================================================== */

.ai-studio-modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 16, 0.88);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 12px;
}

.ai-studio-modal.open {
  display: flex;
}

.ai-studio-dialog {
  background: #0d131f;
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 12px;
  width: 100%;
  max-width: 1020px;
  height: 90vh;
  max-height: 640px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.85), 0 0 35px rgba(56, 189, 248, 0.15);
  overflow: hidden;
}

.ai-studio-header {
  padding: 10px 18px;
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.ai-studio-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ai-studio-title-group h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.ai-studio-badge-free {
  background: rgba(6, 182, 212, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 2px 7px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.ai-studio-close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 17px;
  cursor: pointer;
  padding: 3px 6px;
  border-radius: 4px;
  transition: all 0.15s;
}

.ai-studio-close-btn:hover {
  color: #ffffff;
  background: rgba(239, 68, 68, 0.2);
}

.ai-studio-body {
  display: grid;
  grid-template-columns: 330px 1fr;
  flex: 1;
  overflow: hidden;
  height: calc(100% - 44px);
}

/* Left Sidebar: Controls & Prompting */
.ai-studio-controls,
.ai-studio-control-sidebar {
  padding: 10px 12px;
  background: rgba(15, 23, 42, 0.6);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ai-control-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ai-control-label {
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #94a3b8;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ai-prompt-textarea {
  width: 100%;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 6px;
  padding: 6px 8px;
  color: #ffffff;
  font-size: 11.5px;
  line-height: 1.3;
  resize: none;
  min-height: 42px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.ai-prompt-textarea:focus {
  border-color: #38bdf8;
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.3);
}

.ai-prompt-enhancers,
.ai-prompt-enhancer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
}

.ai-prompt-enhancer-tag {
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 2px 6px;
  font-size: 9.5px;
  color: #94a3b8;
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}

.ai-prompt-enhancer-tag:hover {
  border-color: #38bdf8;
  color: #ffffff;
  background: rgba(56, 189, 248, 0.15);
}

/* Graphic Styles Grid (Compact) */
.ai-styles-grid,
.ai-style-chips-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px;
}

.ai-style-chip {
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  padding: 4px 6px;
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
}

.ai-style-chip:hover {
  border-color: rgba(56, 189, 248, 0.5);
  background: rgba(30, 41, 59, 0.9);
}

.ai-style-chip.active {
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.18);
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.25);
}

.ai-style-icon {
  font-size: 13px;
}

.ai-style-name {
  font-size: 10px;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Multi-var and config rows */
.ai-var-btn-group {
  display: flex;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  overflow: hidden;
}

.ai-var-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 10.5px;
  font-weight: 700;
  padding: 4px 0;
  cursor: pointer;
  transition: all 0.15s;
}

.ai-var-btn.active {
  background: #38bdf8;
  color: #040810;
}

.ai-select-input {
  width: 100%;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 5px;
  padding: 4px 6px;
  color: #ffffff;
  font-size: 10.5px;
  outline: none;
}

.ai-select-input:focus {
  border-color: #38bdf8;
}

/* Submit Generate Button - Hero Highlight */
.btn-ai-generate {
  background: linear-gradient(135deg, #0284c7, #38bdf8);
  color: #ffffff;
  border: none;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.35);
  transition: all 0.15s;
}

.btn-ai-generate:hover:not(:disabled) {
  background: linear-gradient(135deg, #0369a1, #0ea5e9);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(56, 189, 248, 0.5);
}

.btn-ai-generate:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.ai-btn-spinner {
  width: 12px;
  height: 12px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Right Area: Results Grid & History */
.ai-studio-preview-area {
  padding: 12px 14px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ai-results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.ai-result-card {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
  transition: transform 0.15s, border-color 0.15s;
}

.ai-result-card:hover {
  transform: translateY(-2px);
  border-color: rgba(56, 189, 248, 0.5);
}

.ai-result-img-wrapper {
  position: relative;
  aspect-ratio: 1;
  max-height: 180px;
  background-color: #0b0f19;
  background-image: 
    linear-gradient(45deg, #182234 25%, transparent 25%), 
    linear-gradient(-45deg, #182234 25%, transparent 25%), 
    linear-gradient(45deg, transparent 75%, #182234 75%), 
    linear-gradient(-45deg, transparent 75%, #182234 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  user-select: none;
  -webkit-user-drag: none;
}

.ai-result-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.25s ease;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: auto;
}

.ai-result-card:hover .ai-result-img {
  transform: scale(1.03);
}

.ai-result-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(56, 189, 248, 0.4);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 9.5px;
  font-weight: 700;
  color: #38bdf8;
  backdrop-filter: blur(4px);
}

.ai-result-card-actions {
  padding: 8px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  background: rgba(15, 23, 42, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.ai-card-btn {
  border: none;
  border-radius: 4px;
  padding: 5px 6px;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  transition: all 0.12s;
}

.ai-card-btn.primary {
  background: #10b981;
  color: #ffffff;
}

.ai-card-btn.primary:hover {
  background: #059669;
}

.ai-card-btn.accent {
  background: #38bdf8;
  color: #040810;
}

.ai-card-btn.accent:hover {
  background: #0284c7;
  color: #ffffff;
}

.ai-card-btn.secondary {
  background: rgba(30, 41, 59, 0.8);
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.ai-card-btn.secondary:hover {
  background: rgba(51, 65, 85, 0.9);
  color: #ffffff;
  border-color: rgba(56, 189, 248, 0.4);
}

/* Skeleton Loading State */
.ai-result-card.loading-skeleton {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(110deg, #0b1322 8%, #14213d 18%, #0b1322 33%);
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
  min-height: 280px;
}

.ai-skeleton-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: #94a3b8;
  font-size: 12px;
  font-weight: 600;
}

.ai-spinner {
  width: 28px;
  height: 28px;
  border: 3px solid rgba(56, 189, 248, 0.2);
  border-top-color: #38bdf8;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Session History Gallery */
.ai-session-history-section {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
}

.ai-session-history-grid {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.ai-history-item {
  min-width: 170px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.ai-history-item:hover {
  border-color: #38bdf8;
  background: rgba(30, 41, 59, 0.8);
}

.ai-history-preview-thumbs {
  display: flex;
  gap: 4px;
  height: 50px;
  margin-bottom: 6px;
}

.ai-history-thumb {
  flex: 1;
  height: 100%;
  object-fit: cover;
  border-radius: 3px;
  background: #020617;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.ai-history-title {
  font-size: 11px;
  color: #ffffff;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ai-history-tags {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
}

.ai-history-badge {
  font-size: 9.5px;
  color: #38bdf8;
}

.ai-history-time {
  font-size: 9.5px;
  color: #64748b;
}

.ai-history-empty {
  font-size: 11px;
  color: #64748b;
  font-style: italic;
}

@keyframes shimmer {
  to {
    background-position-x: -200%;
  }
}

/* ==========================================================================
   Precision Canvas Rulers, Grid & Multi-Unit System
   ========================================================================== */

/* Ruler Container & Canvas Positioning */
.viewport-rulers-wrapper {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 25;
}

.viewport-ruler-corner {
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  background: #0a0f1d;
  border-right: 1px solid rgba(56, 189, 248, 0.3);
  border-bottom: 1px solid rgba(56, 189, 248, 0.3);
  color: #38bdf8;
  font-size: 8.5px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  pointer-events: auto;
  user-select: none;
  transition: all 0.12s ease;
  z-index: 30;
}

.viewport-ruler-corner:hover {
  background: #38bdf8;
  color: #040810;
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.6);
}

.viewport-ruler-h {
  position: absolute;
  top: 0;
  left: 24px;
  height: 24px;
  pointer-events: auto;
  z-index: 26;
  cursor: crosshair;
}

.viewport-ruler-v {
  position: absolute;
  top: 24px;
  left: 0;
  width: 24px;
  pointer-events: auto;
  z-index: 26;
  cursor: crosshair;
}

.viewport-container.rulers-hidden .viewport-rulers-wrapper {
  display: none !important;
}

/* Canvas Gridlines Overlay */
.canvas-grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 80;
}

/* Header View Dropdown Menu */
.view-menu-container {
  position: relative;
  display: inline-block;
}

.view-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 6px;
  background: #0d131f;
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: 8px;
  min-width: 230px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6), 0 0 20px rgba(56, 189, 248, 0.15);
  padding: 6px 0;
  z-index: 1000;
  display: none;
  backdrop-filter: blur(12px);
}

.view-dropdown-menu.open {
  display: block;
}

.view-menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 14px;
  font-size: 11.5px;
  font-weight: 600;
  color: #cbd5e1;
  cursor: pointer;
  transition: all 0.12s ease;
  user-select: none;
}

.view-menu-item:hover {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
}

.view-menu-item.active {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.08);
}

.view-menu-check {
  font-size: 12px;
  font-weight: 800;
  color: #38bdf8;
  min-width: 16px;
  text-align: right;
}

.view-menu-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 5px 0;
}

.view-menu-header {
  font-size: 9.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: #64748b;
  padding: 4px 14px 2px;
}

.view-menu-dpi-select {
  width: 90%;
  margin: 4px 5%;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  color: #ffffff;
  font-size: 11px;
  padding: 4px 8px;
  outline: none;
}