:root {
  color-scheme: light;
  --bg: #f3f5f8;
  --panel: #ffffff;
  --panel-soft: #f8f9fb;
  --text: #1c2430;
  --muted: #697586;
  --line: #dfe4ea;
  --line-strong: #cbd3dc;
  --primary: #5b5bd6;
  --primary-dark: #4545b8;
  --primary-soft: #ededff;
  --success: #167a55;
  --shadow: 0 8px 28px rgba(28, 36, 48, 0.08);
  --radius: 16px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 14px; }
button, input, select { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, select:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid rgba(91, 91, 214, 0.32);
  outline-offset: 2px;
}
button:disabled { cursor: not-allowed; opacity: 0.48; }
.noscript { padding: 12px; background: #fff2cc; text-align: center; }

.topbar {
  position: sticky; top: 0; z-index: 20;
  min-height: 72px; padding: 10px 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  background: rgba(255, 255, 255, 0.94); border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.brand-block { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-block > div { display: grid; align-content: center; gap: 2px; min-width: 0; }
.brand-block h1 { margin: 0; font-size: 21px; line-height: 1.15; }

.app-version { display: inline-flex; margin-top: 2px; padding: 2px 8px; border-radius: 999px; background: rgba(91,91,214,.1); color: #4f46b8; font-size: 12px; font-weight: 700; letter-spacing: .01em; }

.brand-mark { width: 42px; height: 42px; display: block; flex: 0 0 auto; object-fit: contain; }
.top-actions { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 8px; }
@media (max-width: 620px) { .top-settings-label { display: none; } }

.button {
  border: 1px solid var(--line-strong); background: var(--panel); border-radius: 10px;
  min-height: 38px; padding: 8px 13px; cursor: pointer; font-weight: 650;
  transition: transform .15s ease, border-color .15s ease, background .15s ease;
}
.button:hover:not(:disabled) { transform: translateY(-1px); border-color: #aeb8c4; }
.button.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.button.primary:hover:not(:disabled) { background: var(--primary-dark); }
.button.secondary { background: var(--panel-soft); }
.button.ghost { background: transparent; }
.button.wide { width: 100%; margin-top: 4px; }
.text-button { border: 0; background: transparent; color: var(--primary); padding: 4px; cursor: pointer; font-weight: 650; font-size: 12px; }

.app-shell {
  width: 100%; max-width: 1800px; min-height: calc(100vh - 72px); margin: 0 auto;
  display: grid; grid-template-columns: 300px minmax(360px, 1fr) 320px; gap: 14px; padding: 14px;
}
.site-filing-footer {
  grid-column: 1 / -1;
  align-self: stretch;
  width: 100%;
  min-height: 42px;
  margin-top: 2px;
  padding: 12px 14px 6px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}
.site-filing-item { display: inline-flex; align-items: center; justify-content: center; min-width: 0; color: inherit; }
.site-filing-footer a { color: inherit; text-decoration: none; }
.site-filing-footer a:hover { color: var(--text); text-decoration: underline; }
.site-filing-footer a:focus-visible { border-radius: 4px; }
.site-police-filing { gap: 5px; }
.site-police-filing img { width: 18px; height: 20px; flex: 0 0 auto; object-fit: contain; }

/* Filing information always stays readable over a user-supplied page background.
   This state is independent from the user-configurable global obvious-text mode. */
body.site-filing-obvious-active .site-filing-footer {
  color: var(--site-filing-obvious-text, #24262b);
  border-top-color: var(--site-filing-obvious-border, rgba(36, 38, 43, .26));
  text-shadow: var(--site-filing-obvious-shadow, 0 1px 1px rgba(255, 255, 255, .78));
  font-weight: 650;
}
body.site-filing-obvious-active .site-filing-footer a,
body.site-filing-obvious-active .site-filing-footer a:hover {
  color: var(--site-filing-obvious-text, #24262b);
  text-shadow: var(--site-filing-obvious-shadow, 0 1px 1px rgba(255, 255, 255, .78));
}

.panel, .workspace { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); min-width: 0; }
.panel { align-self: start; overflow: hidden; }
.panel-section { padding: 17px; border-bottom: 1px solid var(--line); }
.panel-section:last-child { border-bottom: 0; }
.section-heading { min-height: 28px; margin-bottom: 13px; display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.section-heading > div:first-child { display: flex; align-items: center; gap: 8px; }
.section-heading h2 { margin: 0; font-size: 14px; }
.step { display: inline-grid; place-items: center; min-width: 24px; height: 24px; border-radius: 8px; background: var(--primary-soft); color: var(--primary-dark); font-weight: 800; font-size: 10px; }
.mini-actions { display: flex; gap: 3px; }

.drop-zone {
  width: 100%; min-height: 38px; margin-bottom: 12px; padding: 7px 10px;
  display: flex; flex-direction: row; align-items: center; justify-content: center; gap: 7px;
  border: 1.5px dashed #aeb8c4; border-radius: 9px; background: #fafbfc; cursor: pointer; text-align: center;
}
.drop-zone.dragging { border-color: var(--primary); background: var(--primary-soft); }
.drop-zone strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }
.drop-icon { display: block; flex: 0 0 auto; width: 22px; height: 22px; object-fit: contain; }
.field { display: grid; gap: 6px; margin: 10px 0; }

.max-colors-control-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; align-items: end; margin: 10px 0; }
.max-colors-control-row .field { margin: 0; min-width: 0; }
.max-colors-limit-field input { width: 100%; }
.max-colors-unlimited-button { width: 100%; min-height: 38px; }
.max-colors-unlimited-button.active { color: #fff; background: var(--primary); border-color: var(--primary); }
.max-colors-limit-field input:disabled { opacity: .62; cursor: not-allowed; }
.field > span, .range-field > span { color: #4d5968; font-size: 12px; font-weight: 650; }
.field input, .field select, .inline-select select {
  width: 100%; min-height: 38px; border: 1px solid var(--line-strong); border-radius: 9px; background: #fff; padding: 7px 9px; color: var(--text);
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.palette-brand-field { position: relative; }
.palette-brand-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.palette-brand-card {
  position: relative;
  min-height: 76px;
  padding: 11px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  text-align: left;
  display: grid;
  align-content: center;
  gap: 4px;
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.palette-brand-card:hover { transform: translateY(-1px); border-color: #aeb8c4; }
.palette-brand-card.selected {
  border-color: #c99149;
  background: #fff9f0;
  box-shadow: inset 0 0 0 1px rgba(201, 145, 73, .16);
}
.palette-brand-card::after {
  content: '';
  position: absolute;
  top: 10px;
  right: 10px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 2px solid #aeb8c4;
  background: #fff;
}
.palette-brand-card.selected::after {
  border-color: #c99149;
  box-shadow: inset 0 0 0 3px #fff;
  background: #c99149;
}
.palette-brand-card strong { font-size: 13px; line-height: 1.2; padding-right: 18px; }
.palette-brand-card small { color: var(--muted); font-size: 10px; line-height: 1.35; }

.field-grid { display: grid; gap: 9px; }
.field-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.check-row { display: flex; align-items: center; gap: 8px; min-height: 28px; cursor: pointer; color: #4d5968; }
.check-row input { width: 16px; height: 16px; accent-color: var(--primary); }
.check-row.compact { font-size: 12px; white-space: nowrap; }
.range-field { display: grid; gap: 6px; margin: 11px 0; }
.range-field > span { display: flex; justify-content: space-between; }
.range-field input, .zoom-control input { width: 100%; accent-color: var(--primary); }
.blank-background-button { margin-top: 8px; border-style: dashed; }
.noise-clean-button { margin-top: 8px; }
.blank-background-button.active, .blank-background-button[aria-pressed="true"] {
  border-style: solid; border-color: #58a989; background: #edf9f4; color: #176b50; box-shadow: inset 0 0 0 1px rgba(88, 169, 137, .12);
}
.blank-background-button.active::before { content: "✓ "; font-weight: 800; }
.fine-print { margin: 10px 0 0; color: var(--muted); font-size: 11px; line-height: 1.5; }

.workspace { min-height: 690px; display: grid; grid-template-rows: auto auto minmax(380px, 1fr) auto; overflow: hidden; }
.workspace-bar, .view-bar, .canvas-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 11px 14px; border-bottom: 1px solid var(--line); }
.tool-group { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.tool-group.compact { flex-wrap: nowrap; }
.tool-button, .icon-button {
  border: 1px solid transparent; border-radius: 9px; background: transparent; min-height: 38px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 5px;
}
.tool-button { padding: 7px 9px; }
.tool-button span { font-size: 12px; }
.tool-button:hover, .icon-button:hover { background: var(--panel-soft); }
.tool-button.active { color: var(--primary-dark); background: var(--primary-soft); border-color: #cfcfff; }
.icon-button { min-width: 38px; font-size: 20px; }
.canvas-meta { border-bottom: 1px solid var(--line); padding-block: 9px; }
.canvas-meta > div:first-child { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.canvas-meta strong { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.canvas-meta #canvasDimensions { color: var(--muted); font-size: 12px; }
.selected-color { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.swatch { display: inline-block; width: 20px; height: 20px; border-radius: 6px; border: 1px solid rgba(20, 30, 40, .25); background: transparent; }

.canvas-viewport {
  position: relative; min-height: 390px; padding: 38px;
  display: grid; place-items: center;
  background-color: #eef1f5;
  background-image: linear-gradient(45deg,#e2e6eb 25%,transparent 25%),linear-gradient(-45deg,#e2e6eb 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e2e6eb 75%),linear-gradient(-45deg,transparent 75%,#e2e6eb 75%);
  background-size: 20px 20px; background-position: 0 0,0 10px,10px -10px,-10px 0;
  overscroll-behavior: contain;
}
.source-preview-image { display: block; max-width: 100%; max-height: min(72vh, 760px); width: auto; height: auto; object-fit: contain; box-shadow: 0 7px 28px rgba(31, 41, 55, .18); pointer-events: none; -webkit-user-drag: none; user-select: none; }
.source-preview-image[hidden] { display: none; }
#patternCanvas { display: none; max-width: none; max-height: none; box-shadow: 0 7px 28px rgba(31, 41, 55, .18); image-rendering: pixelated; touch-action: none; user-select: none; }
#patternCanvas.visible { display: block; }
.empty-state { max-width: 410px; text-align: center; color: var(--muted); }
.empty-state h2 { color: #364152; font-size: 18px; margin: 16px 0 7px; }
.empty-state p { margin: 0; }
.empty-state.hidden { display: none; }
.empty-logo { display: block; width: 112px; height: 112px; margin: 0 auto; object-fit: contain; }
.view-bar { border-top: 1px solid var(--line); border-bottom: 0; flex-wrap: wrap; }
.zoom-control { min-width: 210px; display: grid; grid-template-columns: auto minmax(100px, 1fr) 44px; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.inline-select { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12px; }
.inline-select select { min-height: 32px; width: auto; }
.view-toggle-button {
  min-height: 32px; padding: 5px 10px; border: 1px solid var(--line); border-radius: 8px;
  background: #fff; color: #4d5968; font-size: 12px; font-weight: 700; cursor: pointer; white-space: nowrap;
}
.view-toggle-button:hover { background: var(--panel-soft); }
.view-toggle-button[aria-pressed="true"] { border-color: #8d8deb; background: var(--primary-soft); color: var(--primary-dark); }
.guide-controls { display: inline-flex; align-items: center; gap: 4px; padding: 3px; border: 1px solid var(--line); border-radius: 9px; background: #fff; }
.guide-controls[hidden] { display: none; }
.guide-controls button {
  min-width: 30px; min-height: 28px; padding: 3px 7px; border: 0; border-radius: 6px; background: transparent;
  color: #354052; font: 700 13px system-ui, sans-serif; cursor: pointer;
}
.guide-controls button:hover { background: var(--panel-soft); }
#guideResetButton { font-size: 11px; min-width: 42px; }

.palette-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 7px; max-height: 300px; overflow: auto; padding: 2px; }
.palette-item { position: relative; aspect-ratio: 1; min-width: 0; }
.palette-item button { width: 100%; height: 100%; border: 2px solid transparent; border-radius: 10px; cursor: pointer; box-shadow: inset 0 0 0 1px rgba(0,0,0,.16); }
.palette-item button.selected { border-color: #fff; outline: 3px solid var(--primary); }
.palette-item input { position: absolute; right: 3px; top: 3px; width: 15px; height: 15px; accent-color: var(--primary); z-index: 1; }
.palette-item.disabled button { opacity: .24; filter: grayscale(.7); }
.palette-code { position: absolute; left: 4px; bottom: 3px; padding: 1px 3px; border-radius: 4px; background: rgba(255,255,255,.82); color: #222; font-size: 8px; font-weight: 800; pointer-events: none; }
.summary-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 10px; }
.summary-cards > div { padding: 12px; border-radius: 11px; background: var(--panel-soft); display: grid; gap: 3px; }
.summary-cards strong { font-size: 22px; }
.summary-cards span { color: var(--muted); font-size: 11px; }
.stats-list { max-height: 260px; overflow: auto; }
.stat-row { display: grid; grid-template-columns: 24px 1fr auto; align-items: center; gap: 8px; padding: 7px 2px; border-bottom: 1px solid #edf0f3; }
.stat-row:last-child { border-bottom: 0; }
.stat-row .swatch { width: 22px; height: 22px; }
.stat-row strong { display: block; font-size: 12px; }
.stat-row small { color: var(--muted); }
.stat-row b { font-size: 12px; }
.muted { color: var(--muted); font-size: 12px; line-height: 1.5; }
.export-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.export-grid .button { min-width: 0; }
.export-legend-button { font-size: 12px; }
.export-legend-sort-field { grid-column: 1 / -1; margin: 0; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 8px; }
.export-legend-sort-field > span { white-space: nowrap; }

@media (max-width: 1180px) {
  .app-shell { grid-template-columns: 270px minmax(360px, 1fr); }
  .inspector-panel { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr 1fr; }
  .inspector-panel .panel-section { border-bottom: 0; border-right: 1px solid var(--line); }
  .inspector-panel .panel-section:last-child { border-right: 0; }
}

@media (max-width: 900px) {
  .topbar { position: static; padding: 10px 13px; }
  
.app-version { display: inline-flex; margin-top: 4px; padding: 2px 8px; border-radius: 999px; background: rgba(91,91,214,.1); color: #4f46b8; font-size: 12px; font-weight: 700; letter-spacing: .01em; }

  .top-actions .ghost { display: none; }
  .app-shell { display: flex; flex-direction: column; padding: 9px; gap: 9px; }
  .settings-panel, .workspace, .inspector-panel { width: 100%; }
  .settings-panel { display: grid; grid-template-columns: 1fr 1fr; }
  .settings-panel .panel-section { border-bottom: 0; border-right: 1px solid var(--line); }
  .settings-panel .panel-section:last-child { border-right: 0; }
  .workspace { order: -1; min-height: 590px; grid-template-rows: auto auto minmax(320px, 1fr) auto; }
  .inspector-panel { display: grid; grid-template-columns: 1fr 1fr; }
  .export-section { grid-column: 1 / -1; border-top: 1px solid var(--line); }
  .canvas-viewport { min-height: 330px; padding: 24px; }
}

@media (max-width: 620px) {
  .topbar { align-items: flex-start; }
  .brand-mark { width: 36px; height: 36px; }
  .empty-logo { width: 92px; height: 92px; }
  .brand-block h1 { font-size: 16px; }
  .top-actions { margin-left: auto; }
  .button { min-height: 36px; padding: 7px 10px; }
  .settings-panel, .inspector-panel { display: block; }
  .palette-brand-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .settings-panel .panel-section, .inspector-panel .panel-section { border-right: 0; border-bottom: 1px solid var(--line); }
  .workspace { min-height: 570px; border-radius: 13px; }
  .workspace-bar { align-items: flex-start; }
  .tool-button span { display: none; }
  .tool-button { min-width: 38px; }
  .canvas-meta { align-items: flex-start; }
  .canvas-meta > div:first-child { display: grid; gap: 2px; }
  .selected-color > span:last-child { max-width: 100px; overflow: hidden; text-overflow: ellipsis; }
  .canvas-viewport { min-height: 340px; padding: 18px; }
  .view-bar { gap: 9px; }
  .zoom-control { order: 4; width: 100%; }
  .guide-controls { order: 3; }
  .palette-grid { grid-template-columns: repeat(8, minmax(0, 1fr)); max-height: none; }
  .palette-code { display: none; }
  .stats-list { max-height: 220px; }
  .palette-brand-card { min-height: 72px; }
}

@media (max-width: 390px) {
  .palette-brand-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}


.mard-special-colors {
  display: grid;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-muted, #f7f7fb);
}
.mard-special-colors[hidden] { display: none; }
.mard-special-colors strong { font-size: 13px; }
.mard-special-colors small { color: var(--muted); line-height: 1.45; }
.mard-special-toggle { align-items: flex-start; }

/* v1.10.0: independent collapsible numbered panels */
.panel-toggle {
  cursor: pointer;
  user-select: none;
  border-radius: 10px;
  margin: -4px -5px 13px;
  padding: 4px 5px;
  transition: background .15s ease;
}
.panel-toggle:hover { background: var(--panel-soft); }
.panel-toggle:focus-visible { outline: 3px solid rgba(91, 91, 214, 0.32); outline-offset: 2px; }
.section-title { display: flex; align-items: center; gap: 8px; min-width: 0; flex: 1; }
.section-title h2 { flex: 0 0 auto; }
.section-heading-actions { display: flex; align-items: center; justify-content: flex-end; gap: 7px; flex: 0 0 auto; }
.panel-summary {
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
}
.panel-summary::before { content: "· "; }
.panel-chevron { width: 16px; color: var(--muted); font-size: 12px; font-weight: 800; text-align: center; }
.panel-section-body[hidden] { display: none; }
.panel-section.is-collapsed { padding-block: 11px; }
.panel-section.is-collapsed .panel-toggle { margin-bottom: -4px; }
.panel-section.is-collapsed .panel-summary { display: inline; }

@media (max-width: 620px) {
  .panel-summary { max-width: min(48vw, 190px); }
  .section-heading-actions { gap: 4px; }
}

/* v1.11.2: high-contrast fullscreen offline pattern recognition */
.recognition-entry-button { margin-top: 9px; min-height: 38px; }
.confidence-marker-toggle[disabled] { opacity: .48; cursor: not-allowed; }
.confidence-marker-toggle.active,
.confidence-marker-toggle[aria-pressed="true"] { border-color: #b42318; background: #fff1f1; color: #b42318; }


/* v1.11.13 feature guidance */
.feature-guidance-modal { position: fixed; inset: 0; z-index: 1300; display: grid; place-items: center; padding: 16px; background: rgba(15,23,42,.72); backdrop-filter: blur(5px); }
.feature-guidance-modal[hidden] { display: none !important; }
.feature-guidance-dialog { width: min(540px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); display: grid; grid-template-rows: auto minmax(0,1fr) auto; overflow: hidden; border: 1px solid #cbd5e1; border-radius: 18px; background: #fff; box-shadow: 0 28px 80px rgba(0,0,0,.38); }
.feature-guidance-dialog > header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.feature-guidance-dialog h2 { margin: 0; font-size: 20px; }
.feature-guidance-content { min-height: 0; overflow-y: auto; padding: 8px 18px; overscroll-behavior: contain; }
.feature-guidance-content section { padding: 10px 0; }
.feature-guidance-content h3 { margin: 0 0 5px; font-size: 13px; color: #344054; }
.feature-guidance-content p { margin: 0; color: #475467; line-height: 1.65; }
.feature-guidance-caution { margin: 6px 0; padding-inline: 12px !important; border-left: 4px solid #d97706; background: #fffbeb; }
.feature-guidance-dialog > footer { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px 18px; border-top: 1px solid var(--line); }
.feature-guidance-skip { margin: 0; }
.feature-guidance-actions { display: flex; justify-content: flex-end; gap: 8px; }
body.feature-guidance-open { overflow: hidden; }
@media (max-width: 560px) {
  .feature-guidance-modal { padding: 12px; }
  .feature-guidance-dialog { width: 100%; max-height: calc(100dvh - 24px); border-radius: 16px; }
  .feature-guidance-dialog > footer { align-items: stretch; flex-direction: column; }
  .feature-guidance-actions .button { flex: 1; }
}

.recognition-modal {
  --recognition-backdrop-bg: rgba(15, 23, 42, .78);
  --recognition-dialog-bg: var(--dialog-bg, #ffffff);
  --recognition-surface-bg: #ffffff;
  --recognition-subtle-bg: #f8fafc;
  --recognition-toolbar-bg: #f1f5f9;
  --recognition-tools-header-bg: #eef2f7;
  --recognition-view-bg: #eaf2ff;
  --recognition-divider-bg: #94a3b8;
  --recognition-canvas-bg: #e5e7eb;
  --recognition-canvas-grid-color: #d1d5db;
  --recognition-grid-viewport-bg: #172033;
  --recognition-control-bg: #ffffff;
  --recognition-grid-controls-bg: #ffffff;
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 2vh 1vw;
  /* Own the app background so translucent recognition surfaces never reveal the editor underneath. */
  background-color: var(--app-bg, #eef1f6);
  background-image:
    linear-gradient(var(--recognition-backdrop-bg), var(--recognition-backdrop-bg)),
    var(--app-background-image, none),
    linear-gradient(180deg, #f6f8fb 0%, #edf0f5 100%);
  background-position:
    center,
    var(--app-background-position-x, 50%) var(--app-background-position-y, 50%),
    center;
  background-repeat: no-repeat, no-repeat, no-repeat;
  background-size: cover, cover, cover;
  overflow: hidden;
}
.recognition-modal[hidden] { display: none; }
.recognition-dialog {
  width: min(1760px, 98vw);
  height: min(1100px, 96vh);
  min-height: 620px;
  display: grid;
  grid-template-rows: auto auto auto auto minmax(0, 1fr) auto auto;
  color: #111827;
  background: var(--recognition-dialog-bg);
  border: 1px solid #cbd5e1;
  border-radius: 18px;
  box-shadow: 0 28px 90px rgba(0, 0, 0, .42);
  overflow: hidden;
  isolation: isolate;
}
.recognition-dialog button,
.recognition-dialog input,
.recognition-dialog select,
.recognition-dialog summary,
.recognition-dialog output { font: inherit; }
.recognition-dialog-header,
.recognition-dialog-footer,
.recognition-toolbar,
.recognition-review-bar,
.recognition-view-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border-bottom: 1px solid #cbd5e1;
  background: var(--recognition-surface-bg);
}
.recognition-dialog-header {
  position: sticky;
  top: 0;
  z-index: 8;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(15, 23, 42, .06);
}
.recognition-dialog-header h2 { margin: 0 0 4px; color: #101828; font-size: 22px; line-height: 1.2; }
.recognition-dialog-header p { margin: 0; color: #475467; font-size: 14px; line-height: 1.45; }
.recognition-dialog-header .icon-button { min-width: 42px; min-height: 42px; color: #1f2937; background: #f8fafc; border: 1px solid #94a3b8; font-size: 25px; }
.recognition-toolbar { flex-wrap: wrap; background: var(--recognition-toolbar-bg); }
.recognition-toolbar .field > span,
.compact-field > span { color: #344054; font-size: 13px; font-weight: 750; }
.compact-field { width: auto; min-width: 118px; margin: 0; }
.compact-field input,
.compact-field select { min-width: 94px; min-height: 40px; color: #111827; background: var(--recognition-control-bg); border: 1px solid #64748b; font-size: 14px; }
.recognition-brand { display: grid; gap: 3px; min-width: 168px; padding: 7px 11px; border: 1px solid #64748b; border-radius: 9px; background: var(--recognition-control-bg); }
.recognition-brand span { color: #475467; font-size: 12px; }
.recognition-brand strong { color: #111827; font-size: 14px; }

.recognition-view-toolbar { justify-content: space-between; flex-wrap: wrap; padding-block: 9px; background: var(--recognition-view-bg); }
.recognition-view-description { display: grid; gap: 2px; }
.recognition-view-description strong { color: #172554; font-size: 14px; }
.recognition-view-description span { color: #344054; font-size: 12px; }
.recognition-view-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; }
.recognition-view-actions .button { min-height: 36px; padding: 6px 11px; }
.recognition-zoom-button { width: 38px; height: 36px; border: 1px solid #64748b; border-radius: 8px; background: var(--recognition-control-bg); color: #111827; font-size: 20px; font-weight: 800; cursor: pointer; }
.recognition-zoom-button:hover { background: #eff6ff; border-color: #2563eb; }
#recognitionZoomValue { min-width: 58px; color: #111827; font-size: 14px; font-weight: 800; text-align: center; }

.recognition-preview-grid { min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1px; background: var(--recognition-divider-bg); overflow: hidden; }
.recognition-preview-panel { min-width: 0; min-height: 0; display: grid; grid-template-rows: auto minmax(0, 1fr); background: transparent; overflow: hidden; }
.recognition-preview-panel > header { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 14px; border-bottom: 1px solid #cbd5e1; background: var(--recognition-subtle-bg); }
.recognition-preview-panel > header strong { color: #111827; font-size: 15px; }
.recognition-preview-panel > header span { color: #475467; font-size: 12px; text-align: right; }

.recognition-result-header-actions { min-width: 0; display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.recognition-result-header-actions span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.recognition-result-codes-button { flex: 0 0 auto; min-height: 32px; padding: 5px 9px; white-space: nowrap; font-size: 12px; }
#recognitionResultCanvas { image-rendering: auto; }
.recognition-grid-entry { padding: 10px 12px; border-bottom: 1px solid #cbd5e1; background: var(--recognition-subtle-bg); }
.recognition-grid-entry .button { width: 100%; min-height: 40px; }
.recognition-canvas-wrap {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: auto;
  padding: 16px;
  color: #111827;
  background-color: var(--recognition-canvas-bg);
  background-image: linear-gradient(45deg,var(--recognition-canvas-grid-color) 25%,transparent 25%),linear-gradient(-45deg,var(--recognition-canvas-grid-color) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,var(--recognition-canvas-grid-color) 75%),linear-gradient(-45deg,transparent 75%,var(--recognition-canvas-grid-color) 75%);
  background-size: 20px 20px;
  background-position: 0 0,0 10px,10px -10px,-10px 0;
  cursor: grab;
  overscroll-behavior: contain;
  scrollbar-gutter: auto;
  scrollbar-width: none;
}
.recognition-canvas-wrap::-webkit-scrollbar { width: 0; height: 0; display: none; }
.recognition-canvas-wrap:focus-visible { outline: 3px solid #2563eb; outline-offset: -3px; }
.recognition-canvas-wrap.is-panning { cursor: grabbing; user-select: none; }
.recognition-canvas-wrap canvas { display: block; width: auto; height: auto; max-width: none; max-height: none; margin: 0 auto; image-rendering: pixelated; box-shadow: 0 6px 24px rgba(15,23,42,.25); touch-action: none; background: #ffffff; }

.recognition-review-bar { justify-content: space-between; flex-wrap: wrap; border-top: 1px solid #cbd5e1; background: var(--recognition-surface-bg); }
.recognition-summary { color: #1f2937; font-size: 14px; font-weight: 800; line-height: 1.45; }
.recognition-review-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.recognition-low-confidence[aria-pressed="true"] { border-color: #dc2626; background: #fff1f1; color: #b42318; }
.recognition-status { min-height: 38px; padding: 9px 18px; background: var(--recognition-subtle-bg); color: #344054; border-top: 1px solid #e2e8f0; font-size: 13px; line-height: 1.45; }
.recognition-status[data-tone="error"] { color: #b42318; background: #fff1f1; }
.recognition-status[data-tone="success"] { color: #067647; background: #ecfdf3; }
.recognition-dialog-footer { position: sticky; bottom: 0; z-index: 8; justify-content: flex-end; border-top: 1px solid #94a3b8; border-bottom: 0; background: var(--recognition-surface-bg); box-shadow: 0 -2px 10px rgba(15, 23, 42, .08); }
body.recognition-open { overflow: hidden; }

@media (max-width: 899px), (orientation: portrait) {
  .recognition-modal { padding: 0; }
  .recognition-dialog { width: 100vw; height: 100dvh; min-height: 100dvh; border: 0; border-radius: 0; grid-template-rows: auto auto auto auto minmax(0, 1fr) auto auto; }
  .recognition-preview-grid { grid-template-columns: 1fr; overflow: auto; }
  .recognition-preview-panel { min-height: 330px; overflow: hidden; }
  .recognition-dialog-header, .recognition-dialog-footer, .recognition-toolbar, .recognition-review-bar, .recognition-view-toolbar { padding-inline: 12px; }
}

@media (max-width: 620px) {
  .recognition-dialog { grid-template-rows: auto auto auto auto minmax(0, 1fr) auto auto; }
  .recognition-dialog-header h2 { font-size: 20px; }
  .recognition-dialog-header p { font-size: 12px; }
  .recognition-toolbar { max-height: 26vh; overflow: auto; }
  .recognition-toolbar .button { flex: 1 1 145px; }
  .recognition-view-description { width: 100%; }
  .recognition-view-actions { width: 100%; }
  .recognition-view-actions .button { flex: 1 1 105px; }
  .recognition-review-actions { width: 100%; }
  .recognition-review-actions .button { flex: 1 1 140px; }
  .recognition-dialog-footer .button { flex: 1; }
}

/* v1.11.3: mobile touch safety, fixed actions, and real processing progress */
#patternCanvas {
  touch-action: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}
.canvas-viewport {
  touch-action: none;
  -webkit-overflow-scrolling: touch;
}
.mobile-action-bar { display: none; }
.recognition-mobile-action { display: none; }
.button.danger {
  color: #ffffff;
  background: #b42318;
  border-color: #b42318;
}
.button.danger:hover:not(:disabled) { background: #912018; border-color: #912018; }

.processing-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 20px max(16px, env(safe-area-inset-right)) calc(20px + env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  background: rgba(15, 23, 42, .68);
  backdrop-filter: blur(5px);
  touch-action: none;
}
.processing-overlay[hidden] { display: none; }
.processing-card {
  width: min(520px, 100%);
  display: grid;
  gap: 14px;
  padding: 24px;
  color: #111827;
  background: #ffffff;
  border: 1px solid #cbd5e1;
  border-radius: 18px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .38);
}
.processing-spinner {
  width: 42px;
  height: 42px;
  justify-self: center;
  border: 4px solid #dbeafe;
  border-top-color: #2563eb;
  border-radius: 50%;
  animation: processing-spin .8s linear infinite;
}
@keyframes processing-spin { to { transform: rotate(360deg); } }
.processing-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.processing-heading h2 { margin: 0; font-size: 21px; }
.processing-heading strong { color: #1d4ed8; font-size: 22px; }
.processing-stage { margin: 0; color: #1f2937; font-size: 16px; font-weight: 800; text-align: center; }
.processing-card progress { width: 100%; height: 16px; accent-color: #2563eb; }
.processing-times { display: flex; justify-content: space-between; gap: 16px; color: #475467; font-size: 13px; }
.processing-times strong { color: #111827; }
.processing-detail { min-height: 20px; margin: 0; color: #475467; font-size: 13px; line-height: 1.45; text-align: center; }
.processing-cancel { min-height: 48px; width: 100%; }
body.processing-open { overflow: hidden; }

.recognition-canvas-wrap,
.recognition-canvas-wrap canvas,
.recognition-pan-surface {
  touch-action: none;
  -webkit-touch-callout: none;
}
.recognition-dialog-footer {
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
}

@media (max-width: 900px) {
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
  body.recognition-open,
  body.processing-open { padding-bottom: 0; }
  .mobile-action-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    display: flex;
    gap: 10px;
    padding: 10px max(12px, env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
    overflow-x: auto;
    background: rgba(255, 255, 255, .97);
    border-top: 1px solid var(--line);
    box-shadow: 0 -8px 26px rgba(15, 23, 42, .12);
    -webkit-overflow-scrolling: touch;
  }
  .mobile-action-bar .button,
  .recognition-dialog-footer .button {
    min-width: 132px;
    min-height: 48px;
    flex: 1 0 auto;
    white-space: nowrap;
  }
  .recognition-mobile-action { display: inline-flex; }
  .recognition-dialog-footer {
    position: sticky;
    bottom: 0;
    z-index: 30;
    flex-wrap: nowrap;
    justify-content: flex-start;
    overflow-x: auto;
    padding: 10px max(12px, env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
    -webkit-overflow-scrolling: touch;
  }
  .recognition-preview-grid {
    overscroll-behavior-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .recognition-canvas-wrap { overscroll-behavior-y: auto; }
}

@media (max-width: 620px) {
  .processing-card { padding: 20px 16px; border-radius: 15px; }
  .processing-times { display: grid; grid-template-columns: 1fr 1fr; }
  .processing-heading h2 { font-size: 19px; }
}

/* v1.11.16: collapsible view and selection controls */
.recognition-preview-header { box-sizing: border-box; min-width: 0; }
.recognition-source-header { min-width: 0; }
.recognition-source-hint {
  min-width: 0;
  margin-left: auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.recognition-selection-controls {
  display: grid;
  gap: 12px;
  padding: 12px 18px 16px;
  background: var(--recognition-surface-bg);
}
.recognition-selection-control-row {
  display: grid;
  grid-template-columns: minmax(92px, 130px) minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}
.recognition-selection-control-label {
  color: #344054;
  font-size: 13px;
  font-weight: 800;
}
.recognition-selection-segment {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-width: 0;
  border: 1px solid #b8c2d6;
  border-radius: 10px;
  overflow: hidden;
  background: var(--recognition-control-bg);
}
.recognition-interaction-mode,
.recognition-target-mode { min-width: 0; }
.recognition-mode-button,
.recognition-adjust-button {
  min-width: 0;
  min-height: 42px;
  padding: 8px 12px;
  border: 0;
  border-right: 1px solid #b8c2d6;
  color: #344054;
  background: var(--recognition-control-bg);
  font: inherit;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
}
.recognition-mode-button:last-child,
.recognition-adjust-button:last-child { border-right: 0; }
.recognition-mode-button[aria-pressed="true"],
.recognition-adjust-button[aria-pressed="true"] { color: #ffffff; background: #1d4ed8; }
.recognition-adjust-button[data-target="legend"][aria-pressed="true"] { background: #7e22ce; }
.recognition-mode-button:focus-visible,
.recognition-adjust-button:focus-visible { position: relative; z-index: 1; outline: 3px solid #93c5fd; outline-offset: -3px; }

@media (max-width: 620px) {
  .recognition-selection-controls { gap: 10px; padding: 10px 12px 14px; }
  .recognition-selection-control-row { grid-template-columns: 1fr; gap: 6px; }
  .recognition-mode-button,
  .recognition-adjust-button { min-height: 46px; padding-inline: 8px; }
}

.recognition-pan-surface {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  min-width: 100%;
  min-height: 100%;
  line-height: 0;
  overflow: visible;
}
.recognition-source-surface {
  position: relative;
  flex: 0 0 auto;
  margin: 0 auto;
  line-height: 0;
  overflow: visible;
  touch-action: none;
  -webkit-touch-callout: none;
}
.recognition-source-stage {
  position: relative;
  width: 100%;
  height: 100%;
  line-height: 0;
}
.recognition-source-stage > canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  margin: 0;
  touch-action: none;
}
#recognitionSourceCanvas { z-index: 0; }
#recognitionSourceOverlayCanvas { z-index: 1; pointer-events: none; background: transparent; box-shadow: none; }
.recognition-interaction-mode,
.recognition-target-mode {
  display: inline-flex;
  flex: 0 0 auto;
  min-width: 0;
  border: 1px solid #b8c2d6;
  border-radius: 9px;
  overflow: hidden;
  background: var(--recognition-control-bg);
}
.recognition-target-mode { border: 0; gap: 6px; background: transparent; }
.recognition-mode-button {
  min-width: 86px;
  min-height: 36px;
  padding: 7px 12px;
  border: 0;
  border-right: 1px solid #b8c2d6;
  color: #344054;
  background: var(--recognition-control-bg);
  font: inherit;
  font-weight: 800;
  white-space: nowrap;
  cursor: pointer;
}
.recognition-mode-button:last-child { border-right: 0; }
.recognition-mode-button[aria-pressed="true"] { color: #ffffff; background: #1d4ed8; }
.recognition-mode-button:focus-visible { position: relative; z-index: 1; outline: 3px solid #93c5fd; outline-offset: -3px; }
.recognition-adjust-button[aria-pressed="true"] { color: #ffffff; background: #1d4ed8; border-color: #1d4ed8; }
.recognition-adjust-button[data-target="legend"][aria-pressed="true"] { background: #7e22ce; border-color: #7e22ce; }

@media (max-width: 899px), (orientation: portrait) {
  .recognition-view-actions > .recognition-adjust-button { display: none !important; }
  .recognition-view-toolbar { gap: 7px; padding-block: 7px; }
  .recognition-view-description { width: 100%; }
  .recognition-view-description span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .recognition-view-actions {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
    -webkit-overflow-scrolling: touch;
  }
  .recognition-view-actions .button { flex: 0 0 auto; }
  .recognition-review-bar { display: grid; gap: 7px; padding-block: 8px; }
  .recognition-summary { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .recognition-review-actions {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
    -webkit-overflow-scrolling: touch;
  }
  .recognition-review-actions .button { flex: 0 0 auto; min-height: 40px; }
}

/* v1.11.7: collapsed recognition parameters and adaptive frame handles */
.recognition-control-section {
  min-width: 0;
  border-bottom: 1px solid #cbd5e1;
  background: var(--recognition-surface-bg);
}
.recognition-section-header {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 18px;
  background: var(--recognition-subtle-bg);
}
.recognition-section-toggle {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 2px;
  color: #172554;
  background: transparent;
  border: 0;
  font-size: 14px;
  font-weight: 850;
  cursor: pointer;
}
.recognition-section-toggle:focus-visible { outline: 3px solid #2563eb; outline-offset: 2px; border-radius: 6px; }
.recognition-section-chevron { display: inline-block; transition: transform .16s ease; }
.recognition-control-section.is-collapsed .recognition-section-chevron { transform: rotate(-90deg); }
.recognition-section-body[hidden] { display: none !important; }
.recognition-review-header { justify-content: flex-start; }
.recognition-review-header .recognition-summary {
  min-width: 0;
  margin-left: auto;
  text-align: right;
}
.recognition-review-section .recognition-review-bar { border-top: 0; border-bottom: 0; }
.recognition-review-section .recognition-status { border-top: 1px solid #e2e8f0; }

@media (max-width: 899px), (orientation: portrait) {
  .recognition-dialog {
    grid-template-rows: auto auto auto auto minmax(0, 1fr) auto auto;
  }
  .recognition-section-header { min-height: 46px; padding: 5px 12px; }
  .recognition-section-toggle { min-height: 38px; font-size: 14px; }
  .recognition-settings-section .recognition-toolbar { max-height: 30vh; overflow: auto; }
  .recognition-selection-section .recognition-section-body { max-height: 38vh; overflow: auto; }
  .recognition-review-section .recognition-section-body { max-height: 27vh; overflow: auto; }
  .recognition-review-header .recognition-summary {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 12px;
  }
  .recognition-control-section.is-collapsed .recognition-section-body { display: none !important; }
  .recognition-view-toolbar { flex-wrap: nowrap; min-height: 48px; overflow-x: auto; }
  .recognition-view-description { min-width: 135px; width: auto; }
  .recognition-view-actions { width: auto; margin-left: auto; }
}

@media (max-width: 620px) {
  .recognition-dialog { grid-template-rows: auto auto auto auto minmax(0, 1fr) auto auto; }
  .recognition-section-header { padding-inline: 10px; }
  .recognition-section-toggle { flex: 0 0 auto; }
    .recognition-view-description span { display: none; }
  .recognition-dialog-footer .button { min-width: 116px; }
}


/* v1.11.9 current/original source separation */

.upload-action-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: -4px 0 12px; }
.upload-action-grid .button { width: 100%; min-width: 0; }
@media (max-width: 520px) { .upload-action-grid { grid-template-columns: 1fr; } }
.current-source-status{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border:1px solid #d9def0;border-radius:12px;background:#f7f8ff;font-size:13px;color:#5b6475}
.current-source-details{display:grid;justify-items:end;gap:2px;min-width:0}.current-source-status strong{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#3730a3;text-align:right}.current-source-status small{color:#687386;text-align:right}
@media(max-width:520px){.current-source-status{align-items:flex-start;flex-direction:column;gap:4px}.current-source-details{justify-items:start}.current-source-status strong,.current-source-status small{text-align:left}}


/* v1.11.10: irreversible workspace reset */
.workspace-reset-button { margin-top: 2px; min-height: 44px; }
.workspace-reset-button:disabled { background: #d9dde7; border-color: #d9dde7; color: #7b8495; }
@media (max-width: 520px) { .workspace-reset-button { width: 100%; min-height: 48px; } }

/* v1.11.12 read-only bead mode */
body.bead-mode-active > .topbar,
body.bead-mode-active > .app-shell,
body.bead-mode-active > .mobile-action-bar { display: none !important; }
.bead-mode-page { min-height: 100dvh; padding: 18px; background: #eef1f7; color: #172033; }
.bead-mode-page[hidden] { display: none !important; }
.bead-mode-header { max-width: 1560px; margin: 0 auto 14px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.bead-mode-header h1 { margin: 0; font-size: clamp(1.4rem, 2.5vw, 2rem); }
.bead-mode-header span { color: #667085; }
.bead-mode-eyebrow { margin: 0 0 4px; color: #5b5bd6; font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.bead-mode-layout { max-width: 1560px; min-height: calc(100dvh - 110px); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) minmax(290px, 360px); gap: 14px; }
.bead-mode-preview-card, .bead-mode-control-card { min-width: 0; border: 1px solid #d8deea; border-radius: 18px; background: #fff; box-shadow: 0 12px 32px rgba(43, 55, 78, .08); }
.bead-mode-preview-card { display: grid; grid-template-rows: auto minmax(420px, 1fr) auto; overflow: hidden; }
.bead-mode-preview-heading, .bead-mode-card-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; border-bottom: 1px solid #e6eaf1; }
.bead-mode-preview-title, .bead-mode-card-heading > div { display: grid; gap: 2px; }
.bead-mode-preview-heading span, .bead-mode-card-heading span { color: #697386; font-size: .78rem; }
.bead-mode-viewport { position: relative; min-height: 0; overflow: hidden; background: #fff; cursor: grab; touch-action: none; contain: strict; }
.bead-mode-viewport:active { cursor: grabbing; }
.bead-mode-viewport canvas { position: absolute; left: 0; top: 0; max-width: none; max-height: none; }
.bead-mode-zoom-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 10px 14px; border-top: 1px solid #e6eaf1; }
.bead-mode-zoom-toolbar .button { min-width: 44px; }
.bead-mode-side-panel { min-height: 0; display: grid; grid-template-rows: minmax(260px, 1fr) auto; gap: 14px; }
.bead-mode-control-card { padding-bottom: 14px; overflow: hidden; }
.bead-mode-color-panel { min-height: 0; display: flex; flex-direction: column; }
.bead-mode-color-panel > .field { margin: 10px 14px; }
.bead-mode-color-list { min-height: 160px; overflow: auto; padding: 0 10px 10px; display: grid; align-content: start; gap: 7px; }
.bead-mode-color-item { width: 100%; display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 9px; border: 1px solid #e2e7ef; border-radius: 12px; background: #fff; color: inherit; text-align: left; cursor: pointer; }
.bead-mode-color-item:hover { border-color: #aaaaf0; background: #f7f7ff; }
.bead-mode-color-item.selected { border-color: #5b5bd6; box-shadow: 0 0 0 2px rgba(91, 91, 214, .16); background: #f1f1ff; }
.bead-mode-color-item .swatch { width: 34px; aspect-ratio: 1; border: 1px solid rgba(15, 23, 42, .18); border-radius: 9px; }
.bead-mode-color-item .meta { min-width: 0; display: grid; }
.bead-mode-color-item .meta strong, .bead-mode-color-item .meta small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bead-mode-color-item .count { font-variant-numeric: tabular-nums; color: #5d6678; }
.bead-mode-display-panel { display: grid; gap: 10px; padding-bottom: 14px; }
.bead-mode-display-panel > :not(.bead-mode-card-heading) { margin-inline: 14px; }
.bead-mode-segmented { margin-block: 0; padding: 0; border: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 5px; }
.bead-mode-segmented legend { margin-bottom: 5px; color: #5d6678; font-size: .78rem; }
.bead-mode-segmented label { position: relative; }
.bead-mode-segmented input { position: absolute; opacity: 0; }
.bead-mode-segmented span { display: grid; min-height: 38px; place-items: center; padding: 6px; border: 1px solid #d9dfeb; border-radius: 9px; font-size: .76rem; cursor: pointer; }
.bead-mode-segmented input:checked + span { border-color: #5b5bd6; color: #4545c4; background: #eeeeff; font-weight: 700; }
.bead-mode-compact-grid { margin-inline: 14px !important; }
.bead-mode-calibration-notice { padding: 9px 10px; border-radius: 10px; background: #fff6db; color: #805b00; font-size: .78rem; }
.bead-calibration-modal { position: fixed; inset: 0; z-index: 1200; display: grid; place-items: center; padding: 18px; background: rgba(12, 18, 32, .72); }
.bead-calibration-modal[hidden] { display: none !important; }
.bead-calibration-dialog { width: min(900px, 100%); max-height: min(820px, 94dvh); display: grid; grid-template-rows: auto auto minmax(0,1fr) auto; border-radius: 20px; overflow: hidden; background: #fff; box-shadow: 0 28px 80px rgba(0,0,0,.35); }
.bead-calibration-dialog > header, .bead-calibration-dialog > footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; }
.bead-calibration-dialog > header { border-bottom: 1px solid #e3e7ef; }
.bead-calibration-dialog > header h2 { margin: 0; }
.bead-calibration-dialog > footer { justify-content: flex-end; border-top: 1px solid #e3e7ef; }
.bead-calibration-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #e3e7ef; }
.bead-calibration-steps button { min-height: 42px; border: 0; background: #f7f8fb; color: #667085; }
.bead-calibration-steps button.active { background: #ececff; color: #4b4bc5; font-weight: 800; }
.bead-calibration-body { overflow: auto; padding: 18px; }
.bead-screen-ruler { position: relative; height: 180px; margin: 18px 0; border-radius: 14px; overflow: hidden; background: repeating-linear-gradient(90deg,#f6f7fb 0,#f6f7fb 9px,#edf0f6 10px); }
.bead-screen-ruler[data-axis="y"] { background: repeating-linear-gradient(0deg,#f6f7fb 0,#f6f7fb 9px,#edf0f6 10px); }
.bead-ruler-line { position: absolute; left: 20%; right: 20%; top: 50%; height: 3px; translate: 0 -50%; background: #5b5bd6; }
.bead-screen-ruler[data-axis="y"] .bead-ruler-line { left: 50%; right: auto; top: 16%; bottom: 16%; width: 3px; height: auto; translate: -50% 0; }
.bead-ruler-handle { position: absolute; width: 30px; height: 50px; top: 50%; translate: -50% -50%; border: 2px solid white; border-radius: 9px; background: #5b5bd6; box-shadow: 0 4px 14px rgba(39,39,115,.35); touch-action: none; }
.bead-ruler-handle.start { left: 20%; } .bead-ruler-handle.end { left: 80%; }
.bead-screen-ruler[data-axis="y"] .bead-ruler-handle { left: 50%; width: 50px; height: 30px; translate: -50% -50%; }
.bead-screen-ruler[data-axis="y"] .bead-ruler-handle.start { top: 16%; } .bead-screen-ruler[data-axis="y"] .bead-ruler-handle.end { top: 84%; }
.bead-screen-ruler output { position: absolute; left: 50%; top: 16px; translate: -50% 0; padding: 5px 9px; border-radius: 99px; background: white; font-weight: 800; }
.bead-calibration-records { display: grid; gap: 7px; margin-top: 14px; }
.bead-calibration-record { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px; padding: 9px 10px; border: 1px solid #e1e6ef; border-radius: 10px; }
.bead-calibration-record.outlier { border-color: #ed9b9b; background: #fff3f3; }
.bead-calibration-summary { display: grid; gap: 9px; margin-bottom: 16px; }
.bead-calibration-summary article { padding: 12px; border: 1px solid #e1e6ef; border-radius: 12px; }
.bead-fullscreen-controls { position: fixed; z-index: 1010; inset: 16px 16px auto; display: flex; justify-content: space-between; pointer-events: none; transition: opacity .2s ease; }
.bead-fullscreen-controls .button { pointer-events: auto; }
.bead-fullscreen-controls.is-hidden { opacity: 0; pointer-events: none; }
.bead-fullscreen-warning-bar { position: fixed; z-index: 1020; top: max(10px, env(safe-area-inset-top)); left: 50%; translate: -50% 0; border: 0; border-radius: 999px; padding: 8px 14px; background: #ffbf3f; color: #342300; font-weight: 800; }
.bead-fullscreen-warning { position: fixed; inset: 0; z-index: 1050; display: grid; place-items: center; padding: 20px; background: rgba(5,9,18,.72); }
.bead-fullscreen-warning[hidden] { display: none !important; }
.bead-fullscreen-warning section { width: min(460px, 100%); padding: 22px; border-radius: 18px; background: white; text-align: center; box-shadow: 0 24px 70px rgba(0,0,0,.42); }
.bead-fullscreen-find { position: fixed; z-index: 1030; left: 50%; top: 50%; translate: -50% -50%; padding: 13px 18px; border: 0; border-radius: 999px; background: #5b5bd6; color: white; font-weight: 800; box-shadow: 0 12px 32px rgba(30,30,90,.34); }
.bead-mode-page.is-fullscreen { position: fixed; inset: 0; z-index: 1000; padding: 0; background: #fff; }
.bead-mode-page.is-fullscreen .bead-mode-header, .bead-mode-page.is-fullscreen .bead-mode-side-panel, .bead-mode-page.is-fullscreen .bead-mode-preview-heading, .bead-mode-page.is-fullscreen .bead-mode-zoom-toolbar { display: none; }
.bead-mode-page.is-fullscreen .bead-mode-layout, .bead-mode-page.is-fullscreen .bead-mode-preview-card { max-width: none; min-height: 100%; height: 100%; margin: 0; display: block; border: 0; border-radius: 0; box-shadow: none; }
.bead-mode-page.is-fullscreen .bead-mode-viewport { width: 100%; height: 100%; min-height: 100%; }
@media (max-width: 900px) {
  .bead-mode-page { padding: 10px; }
  .bead-mode-layout { grid-template-columns: 1fr; }
  .bead-mode-preview-card { min-height: 62dvh; grid-template-rows: auto minmax(360px, 1fr) auto; }
  .bead-mode-side-panel { grid-template-rows: auto auto; }
  .bead-mode-color-list { max-height: 320px; }
  .bead-mode-header { align-items: flex-start; }
}
@media (max-width: 560px) {
  .bead-mode-header { flex-direction: column; }
  .bead-mode-header .button { width: 100%; }
  .bead-mode-preview-card { min-height: 58dvh; }
  .bead-calibration-steps button { font-size: .7rem; }
}

body.bead-fullscreen-active { overflow: hidden; overscroll-behavior: none; }
.bead-fullscreen-controls[hidden], .bead-fullscreen-warning-bar[hidden], .bead-fullscreen-find[hidden] { display: none !important; }

/* v1.11.12 bead-mode UX revision */
.bead-mode-layout { position: relative; transition: grid-template-columns .2s ease; }
.bead-mode-layout.is-side-collapsed { grid-template-columns: minmax(0, 1fr) 0; gap: 0; }
.bead-mode-layout.is-side-collapsed .bead-mode-side-panel { display: none; }
.bead-mode-preview-card { container: bead-preview / inline-size; grid-template-rows: auto minmax(420px, 1fr); }
.bead-mode-preview-heading { min-width: 0; display: grid; grid-template-columns: minmax(140px, auto) minmax(0, 1fr); align-items: center; gap: 12px; }
.bead-mode-preview-title { min-width: 140px; display: grid; gap: 2px; }
.bead-mode-preview-heading > .bead-mode-zoom-toolbar { min-width: 0; margin-left: auto; display: flex; flex-wrap: nowrap; align-items: center; justify-content: flex-end; gap: 7px; padding: 0; border: 0; background: transparent; overflow-x: auto; overflow-y: hidden; scrollbar-width: thin; }
.bead-mode-zoom-toolbar > * { flex: 0 0 auto; }
.bead-mode-zoom-toolbar input[type="range"] { flex: 1 1 190px; width: clamp(96px, 14vw, 190px); min-width: 96px; max-width: 190px; height: 36px; margin: 0; accent-color: #5b5bd6; }
.bead-mode-zoom-toolbar output { min-width: 48px; height: 36px; line-height: 36px; text-align: center; font-variant-numeric: tabular-nums; font-weight: 800; }
.bead-mode-zoom-toolbar .button { min-width: auto; min-height: 36px; padding: 7px 10px; white-space: nowrap; }
.bead-mode-zoom-toolbar :disabled { opacity: .48; cursor: not-allowed; }
.bead-mode-viewport.is-panning { cursor: grabbing; }
.bead-mode-side-panel { grid-template-rows: auto minmax(0, auto) minmax(0, auto); align-content: start; }
.bead-mode-side-toolbar { min-height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 6px 8px 6px 14px; border: 1px solid #d8deea; border-radius: 14px; background: #f8f9fc; color: #475467; }
.bead-mode-side-toolbar .icon-button { transform: rotate(0deg); }
.bead-mode-card-actions { display: flex; align-items: center; gap: 4px; }
.bead-mode-section-toggle { width: 34px; height: 34px; transition: transform .16s ease; }
.bead-mode-control-card.is-collapsed .bead-mode-section-toggle { transform: rotate(180deg); }
.bead-mode-control-body[hidden] { display: none !important; }
.bead-mode-color-panel { min-height: 0; }
.bead-mode-color-panel > .bead-mode-control-body { min-height: 0; display: flex; flex-direction: column; }
.bead-mode-color-panel .bead-mode-control-body > .field { margin: 10px 14px; }
.bead-mode-color-list { --bead-color-item-height: 56px; min-height: 0; max-height: calc(var(--bead-color-item-height) * 6 + 7px * 5 + 10px); overflow-y: auto; overflow-x: hidden; scrollbar-gutter: stable; overscroll-behavior: contain; }
.bead-mode-color-item { min-height: var(--bead-color-item-height); }
.bead-mode-display-panel { display: block; padding-bottom: 0; }
.bead-mode-display-body { display: grid; gap: 10px; padding: 0 0 14px; }
.bead-mode-display-body > * { margin-inline: 14px; }
.bead-mode-display-body .bead-mode-compact-grid { margin-inline: 14px !important; }
.bead-mode-side-expand-handle { position: absolute; z-index: 6; top: 50%; right: 0; width: 28px; height: 76px; translate: 0 -50%; border: 1px solid #cfd6e3; border-right: 0; border-radius: 14px 0 0 14px; background: #fff; color: #4b4bc5; font-size: 26px; font-weight: 800; box-shadow: -6px 8px 20px rgba(43,55,78,.12); cursor: pointer; }
.bead-mode-side-expand-handle[hidden] { display: none !important; }
.bead-mode-mobile-controls-button { display: none; position: fixed; z-index: 900; left: 50%; bottom: max(58px, calc(env(safe-area-inset-bottom) + 46px)); translate: -50% 0; box-shadow: 0 10px 28px rgba(43,55,78,.22); }

.bead-calibration-dialog { width: min(1180px, 100%); max-height: min(900px, 96dvh); }
.bead-calibration-body { min-height: 0; }
.bead-screen-calibration-panel { min-height: 0; }
.bead-screen-calibration-layout { min-height: min(620px, calc(96dvh - 190px)); display: grid; grid-template-columns: minmax(0, 1fr) minmax(270px, 340px); gap: 16px; }
.bead-screen-calibration-canvas { min-width: 0; min-height: 0; display: grid; place-items: stretch; }
.bead-screen-calibration-controls { min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 4px 4px 12px; }
.bead-screen-calibration-controls > p { margin-top: 0; }
.bead-screen-ruler { position: relative; width: 100%; height: 100%; min-height: 420px; margin: 0; overflow: hidden; touch-action: none; user-select: none; }
.bead-screen-ruler[data-axis="x"] { min-height: 420px; background: repeating-linear-gradient(90deg,#f6f7fb 0,#f6f7fb 9px,#edf0f6 10px); }
.bead-screen-ruler[data-axis="y"] { min-height: 420px; background: repeating-linear-gradient(0deg,#f6f7fb 0,#f6f7fb 9px,#edf0f6 10px); }
.bead-ruler-line { translate: none; border-radius: 999px; cursor: move; touch-action: none; }
.bead-ruler-line::before { content: ""; position: absolute; inset: -18px; }
.bead-ruler-handle { z-index: 3; touch-action: none; cursor: ew-resize; }
.bead-screen-ruler[data-axis="y"] .bead-ruler-handle { cursor: ns-resize; }
.bead-ruler-target-label { position: absolute; z-index: 2; translate: -50% -50%; max-width: min(240px, 70%); padding: 7px 11px; border: 1px solid #c8c8f2; border-radius: 999px; background: rgba(255,255,255,.94); color: #3535aa; font-size: .88rem; font-weight: 900; white-space: nowrap; pointer-events: none; box-shadow: 0 5px 16px rgba(61,61,145,.12); }
.bead-ruler-pixel-output { position: absolute; z-index: 2; top: 14px; right: 14px; padding: 6px 9px; border-radius: 8px; background: rgba(255,255,255,.9); color: #667085; font-size: .76rem; font-weight: 700; pointer-events: none; }

@container bead-preview (max-width: 680px) {
  .bead-mode-preview-heading { grid-template-columns: minmax(0, 1fr); gap: 8px; padding-block: 12px; }
  .bead-mode-preview-heading > .bead-mode-zoom-toolbar { width: 100%; margin-left: 0; justify-content: flex-start; padding-top: 8px; border-top: 1px solid #eef1f6; }
  .bead-mode-zoom-toolbar input[type="range"] { flex: 1 0 96px; }
}

@media (max-width: 900px) {
  .bead-mode-layout.is-side-collapsed { grid-template-columns: 1fr; }
  .bead-mode-side-expand-handle { display: none !important; }
  .bead-mode-layout.is-side-collapsed + .bead-mode-mobile-controls-button { display: block; }
  .bead-calibration-modal { padding: 0; }
  .bead-calibration-dialog { width: 100%; height: 100dvh; max-height: none; border-radius: 0; }
  .bead-screen-calibration-layout { min-height: 0; display: grid; grid-template-columns: 1fr; grid-template-rows: minmax(420px, 58dvh) minmax(0, auto); }
  .bead-screen-calibration-controls { max-height: 34dvh; padding: 14px 4px 18px; }
  .bead-screen-ruler, .bead-screen-ruler[data-axis="x"], .bead-screen-ruler[data-axis="y"] { min-height: 420px; }
}

@media (max-width: 560px) {
  .bead-mode-zoom-toolbar .button { padding-inline: 8px; }
  .bead-mode-zoom-toolbar input[type="range"] { flex-basis: 92px; }
  .bead-mode-side-toolbar { position: sticky; top: 0; z-index: 2; }
  .bead-screen-calibration-layout { grid-template-rows: minmax(420px, 62dvh) minmax(0, auto); }
}
.bead-mode-display-panel > .bead-mode-control-body { margin-inline: 0; }
.bead-screen-ruler[data-axis="y"] .bead-ruler-line { right: auto; bottom: auto; translate: none; }
.bead-screen-ruler .bead-ruler-target-label { translate: -50% -50%; }
.bead-screen-ruler .bead-ruler-pixel-output { left: auto; right: 14px; top: 14px; translate: none; }
.recognition-zoom-range { width: clamp(96px, 14vw, 190px); accent-color: #2563eb; }
@media (max-width: 560px) { .recognition-zoom-range { flex: 1 0 96px; } }

/* v1.11.14 application-owned confirmation and message system */
.app-confirm-modal { position: fixed; inset: 0; z-index: 1450; display: grid; place-items: center; padding: 16px; background: rgba(15,23,42,.74); backdrop-filter: blur(5px); }
.app-confirm-modal[hidden] { display: none !important; }
.app-confirm-dialog { width: min(500px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); overflow: hidden; border: 1px solid #cbd5e1; border-radius: 18px; background: #fff; box-shadow: 0 28px 80px rgba(0,0,0,.4); }
.app-confirm-dialog > header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.app-confirm-dialog h2 { margin: 0; font-size: 20px; }
.app-confirm-dialog > p { max-height: min(42dvh, 320px); margin: 0; padding: 20px 18px; overflow-y: auto; color: #475467; line-height: 1.7; white-space: pre-line; overscroll-behavior: contain; }
.app-confirm-dialog > footer { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 18px; border-top: 1px solid var(--line); }
body.app-dialog-open { overflow: hidden; }
.app-toast-region { position: fixed; z-index: 1600; bottom: max(16px, env(safe-area-inset-bottom)); left: 50%; width: min(560px, calc(100vw - 24px)); transform: translateX(-50%); pointer-events: none; }
.app-toast { display: flex; align-items: center; justify-content: space-between; gap: 12px; width: 100%; padding: 12px 14px; border: 1px solid #cbd5e1; border-radius: 12px; color: #1d2939; background: rgba(255,255,255,.98); box-shadow: 0 14px 34px rgba(15,23,42,.22); pointer-events: auto; }
.app-toast.tone-success { border-color: #86efac; background: #f0fdf4; color: #166534; }
.app-toast.tone-warning { border-color: #fcd34d; background: #fffbeb; color: #92400e; }
.app-toast.tone-error { border-color: #fca5a5; background: #fef2f2; color: #991b1b; }
.app-toast-close { flex: 0 0 auto; min-width: 32px; min-height: 32px; border: 0; border-radius: 8px; color: inherit; background: transparent; font-size: 22px; line-height: 1; cursor: pointer; }
.app-toast-close:hover { background: rgba(15,23,42,.08); }

@media (max-width: 900px) {
  body:not(.recognition-open):not(.processing-open) .app-toast-region { bottom: calc(84px + env(safe-area-inset-bottom)); }
}

@media (max-width: 560px) {
  .app-confirm-modal { padding: 12px; }
  .app-confirm-dialog { width: 100%; border-radius: 16px; }
  .app-confirm-dialog > footer .button { flex: 1; }
  .app-toast-region { bottom: max(8px, env(safe-area-inset-bottom)); width: calc(100vw - 16px); }
}

/* v1.12.1 versioned user guides */
body.user-guide-open { overflow: hidden; }
.user-guide-modal,
.bead-gate-modal {
  position: fixed;
  inset: 0;
  z-index: 1400;
  display: grid;
  place-items: center;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  background: rgba(15, 23, 42, .66);
  backdrop-filter: blur(4px);
}
.user-guide-modal[hidden], .bead-gate-modal[hidden] { display: none; }
.user-guide-dialog {
  width: min(760px, 100%);
  max-height: min(calc(var(--app-viewport-height, 100dvh) - max(32px, env(safe-area-inset-top)) - max(32px, env(safe-area-inset-bottom))), 860px);
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
  border: 1px solid rgba(91, 91, 214, .2);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 24px 80px rgba(15, 23, 42, .32);
}
.user-guide-dialog > header { padding: 22px 24px 14px; border-bottom: 1px solid #e5e7eb; }
.user-guide-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
.user-guide-subtitle { margin: 7px 0 0; color: #64748b; line-height: 1.55; }
.user-guide-jump-end { flex: 0 0 auto; white-space: nowrap; }
.user-guide-dialog h2 { margin: 2px 0 0; font-size: 1.45rem; }
.user-guide-eyebrow { margin: 0; color: #5b5bd6; font-weight: 750; font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; }
.user-guide-scroll { min-height: 0; overflow-y: auto; padding: 18px 24px 28px; outline: none; overscroll-behavior: contain; }
.user-guide-scroll section { padding: 4px 0 14px; }
.user-guide-scroll h3 { margin: 0 0 6px; font-size: 1rem; color: #172033; }
.user-guide-scroll p { margin: 0; line-height: 1.72; color: #4b5563; }
.user-guide-scroll strong { color: #1f2937; }
.user-guide-location-note,
.user-guide-ruler-warning { margin: 8px 0 4px; padding: 16px 18px; border-radius: 14px; }
.user-guide-location-note { background: #eef2ff; border: 1px solid #c7d2fe; color: #3730a3; }
.user-guide-ruler-warning { background: #fff7ed; border: 2px solid #f97316; color: #9a3412; box-shadow: 0 0 0 4px rgba(249, 115, 22, .08); }
.user-guide-ruler-warning strong { display: block; margin-bottom: 6px; font-size: 1.16rem; }
.user-guide-dialog > footer { padding: 14px 24px 18px; border-top: 1px solid #e5e7eb; background: #f8fafc; }
.user-guide-progress { margin: 0 0 10px; color: #b45309; font-size: .86rem; }
.user-guide-progress[data-ready="true"] { color: #047857; }
.user-guide-footer-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.user-guide-footer-row .button:disabled { opacity: .46; cursor: not-allowed; }
.bead-mode-header-actions { display: flex; align-items: center; gap: 10px; }
.bead-mode-highlight-notice { position: absolute; left: 50%; top: 14px; transform: translateX(-50%); z-index: 3; max-width: calc(100% - 28px); padding: 8px 12px; border-radius: 999px; background: rgba(15, 23, 42, .88); color: #fff; font-size: .82rem; text-align: center; pointer-events: none; }
.bead-mode-fullscreen-button.is-locked { background: #cbd5e1; border-color: #cbd5e1; color: #475569; box-shadow: none; cursor: help; }
.bead-mode-fullscreen-button.is-locked::before { content: "🔒 "; }
.bead-gate-dialog { width: min(580px, 100%); max-height: min(88vh, 720px); overflow: auto; border-radius: 18px; background: #fff; box-shadow: 0 24px 80px rgba(15, 23, 42, .32); }
.bead-gate-dialog > header { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 18px 20px 12px; border-bottom: 1px solid #e5e7eb; }
.bead-gate-dialog > header h2 { margin: 0; font-size: 1.2rem; }
.bead-gate-dialog > p { margin: 16px 20px 8px; color: #64748b; line-height: 1.6; }
.bead-gate-dialog > footer { display: flex; justify-content: flex-end; gap: 10px; padding: 14px 20px 18px; border-top: 1px solid #e5e7eb; }
.bead-gate-condition-list { display: grid; gap: 12px; padding: 12px 20px 20px; }
.bead-gate-condition { padding: 14px; border: 1px solid #e2e8f0; border-radius: 14px; background: #f8fafc; }
.bead-gate-condition.is-ready { border-color: #a7f3d0; background: #ecfdf5; }
.bead-gate-condition.is-missing { border-color: #fecaca; background: #fef2f2; }
.bead-gate-condition-title { display: flex; align-items: flex-start; gap: 9px; font-weight: 750; color: #1e293b; }
.bead-gate-condition-icon { flex: 0 0 auto; font-size: 1.05rem; line-height: 1.4; }
.bead-gate-condition.is-ready .bead-gate-condition-icon { color: #059669; }
.bead-gate-condition.is-missing .bead-gate-condition-icon { color: #dc2626; }
.bead-gate-condition p { margin: 7px 0 10px 29px; color: #64748b; line-height: 1.55; }
.bead-gate-condition .button { margin-left: 29px; }
.bead-size-options { display: grid; gap: 10px; padding: 10px 20px 14px; }
.bead-size-option { display: flex; align-items: center; min-height: 52px; gap: 12px; padding: 12px 14px; border: 1px solid #cbd5e1; border-radius: 13px; background: #fff; cursor: pointer; }
.bead-size-option:has(input:checked) { border-color: #5b5bd6; box-shadow: 0 0 0 3px rgba(91, 91, 214, .12); }
.bead-size-option.is-unavailable { background: #f8fafc; color: #94a3b8; cursor: not-allowed; }
.bead-size-option input { width: 20px; height: 20px; }
.bead-size-option span { font-weight: 700; }
.bead-size-guidance { padding: 0 20px 14px; color: #b91c1c; font-size: .88rem; line-height: 1.55; }
@media (max-width: 640px) {
  .user-guide-modal, .bead-gate-modal { padding: max(8px, env(safe-area-inset-top)) 8px max(8px, env(safe-area-inset-bottom)); align-items: stretch; }
  .user-guide-dialog, .bead-gate-dialog { width: 100%; max-height: 100%; border-radius: 16px; }
  .user-guide-dialog > header { padding: 18px 18px 12px; }
  .user-guide-scroll { padding: 16px 18px 28px; }
  .user-guide-dialog > footer { padding: 12px 18px max(16px, env(safe-area-inset-bottom)); }
  .user-guide-footer-row { align-items: stretch; flex-direction: column; }
  .user-guide-footer-row .button { width: 100%; }
  .bead-mode-header-actions { flex-wrap: wrap; justify-content: flex-end; }
}
.bead-mode-segmented { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* v1.12.2 wide-screen fullscreen interaction sidebar */
.bead-fullscreen-mode-sidebar {
  position: fixed;
  z-index: 1020;
  right: max(10px, env(safe-area-inset-right));
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  justify-items: center;
  gap: 6px;
  width: 52px;
  padding: 7px 5px;
  border: 1px solid rgba(148, 163, 184, .72);
  border-radius: 16px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 16px 44px rgba(15, 23, 42, .28);
  backdrop-filter: blur(10px);
  transition: opacity .2s ease, transform .2s ease;
}
.bead-fullscreen-mode-sidebar[hidden] { display: none !important; }
.bead-fullscreen-mode-sidebar.is-hidden {
  opacity: 0;
  transform: translate(calc(100% + 24px), -50%);
  pointer-events: none;
}
.bead-fullscreen-pin-button,
.bead-fullscreen-mode-button {
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: #334155;
  cursor: pointer;
}
.bead-fullscreen-pin-button { width: 34px; height: 34px; padding: 0; font-size: 17px; }
.bead-fullscreen-pin-button span { display: block; transform: rotate(-35deg); transition: transform .16s ease; }
.bead-fullscreen-mode-sidebar.is-pinned .bead-fullscreen-pin-button span { transform: rotate(0deg); }
.bead-fullscreen-mode-button { width: 42px; min-height: 104px; padding: 8px 5px; font-weight: 800; }
.bead-fullscreen-mode-label {
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: .1em;
  line-height: 1.15;
}
.bead-fullscreen-pin-button:hover,
.bead-fullscreen-mode-button:hover { background: #f1f5f9; }
.bead-fullscreen-mode-button[aria-pressed="true"] {
  border-color: #5b5bd6;
  background: #ededff;
  color: #4545b8;
  box-shadow: inset 0 0 0 1px rgba(91, 91, 214, .12);
}
.bead-fullscreen-pin-button[aria-pressed="true"] { background: #eef2ff; color: #4338ca; }
.bead-fullscreen-mode-toast {
  position: fixed;
  z-index: 1040;
  left: 50%;
  top: max(14px, env(safe-area-inset-top));
  transform: translateX(-50%);
  padding: 9px 14px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .9);
  color: #fff;
  font-weight: 750;
  box-shadow: 0 10px 30px rgba(15, 23, 42, .25);
  pointer-events: none;
}
.bead-fullscreen-mode-toast[hidden] { display: none !important; }
.bead-mode-page.is-fullscreen.bead-fullscreen-click-mode .bead-mode-viewport { cursor: pointer; }
.bead-mode-page.is-fullscreen .bead-mode-viewport.is-panning { cursor: grabbing; }
@media (max-width: 599px) {
  .bead-fullscreen-mode-sidebar { display: none !important; }
}

/* v1.13.2: full-platform .pixelbeads.zip project transfer compatibility */
.project-transfer-modal {
  position: fixed; inset: 0; z-index: 1450; display: grid; place-items: center;
  padding: 18px; background: rgba(15,23,42,.74); backdrop-filter: blur(6px);
}
.project-transfer-modal[hidden] { display: none !important; }
.project-transfer-dialog {
  width: min(720px, 100%); max-height: min(900px, calc(100dvh - 36px));
  display: grid; grid-template-rows: auto minmax(0,1fr) auto; overflow: hidden;
  border: 1px solid #cbd5e1; border-radius: 20px; background: #fff;
  box-shadow: 0 28px 90px rgba(0,0,0,.42);
}
.project-transfer-dialog > header { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.project-transfer-dialog h2 { margin: 2px 0 0; font-size: 21px; }
.project-transfer-eyebrow { margin: 0; color: var(--primary); font-size: 11px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.project-transfer-body { min-height: 0; overflow: auto; padding: 18px; }
.project-transfer-screen { display: grid; gap: 14px; }
.project-transfer-screen[hidden] { display: none !important; }
.project-transfer-choice-group { display: grid; gap: 8px; margin: 0; padding: 0; border: 0; }
.project-transfer-choice-group legend { margin-bottom: 8px; color: #344054; font-weight: 850; }
.project-transfer-choice { position: relative; display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: start; padding: 12px; border: 1px solid #d5dbe5; border-radius: 12px; cursor: pointer; }
.project-transfer-choice:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); box-shadow: inset 0 0 0 1px rgba(91,91,214,.14); }
.project-transfer-choice input { margin-top: 3px; accent-color: var(--primary); }
.project-transfer-choice span { display: grid; gap: 3px; }
.project-transfer-choice small { color: var(--muted); line-height: 1.45; }
.project-transfer-choice:has(input:disabled) { opacity: .5; cursor: not-allowed; }
.project-transfer-options { display: grid; gap: 6px; padding: 11px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-soft); }
.project-transfer-file-preview, .project-transfer-progress-heading { display: flex; justify-content: space-between; gap: 14px; padding: 11px 12px; border-radius: 11px; background: #f8fafc; }
.project-transfer-file-preview span { color: var(--muted); }
.project-transfer-file-preview strong { min-width: 0; overflow-wrap: anywhere; text-align: right; }
.project-transfer-summary { display: grid; gap: 6px; padding: 13px; border: 1px solid #dbe2ea; border-radius: 12px; background: #f8fafc; line-height: 1.55; }
.project-transfer-summary strong { color: #172554; }
.project-transfer-warning { padding: 16px; border-left: 4px solid #d97706; border-radius: 10px; background: #fffbeb; }
.project-transfer-warning p { margin: 6px 0 0; color: #6b4f00; line-height: 1.55; }
.project-unsaved-actions { display: grid; gap: 9px; }
.project-transfer-step-list { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.project-transfer-step { display: grid; grid-template-columns: 24px minmax(0,1fr) auto; align-items: center; gap: 9px; min-height: 42px; padding: 8px 10px; border: 1px solid #e2e8f0; border-radius: 10px; background: #fff; }
.project-transfer-step-icon { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: #eef2f7; font-weight: 850; }
.project-transfer-step small { color: var(--muted); text-align: right; }
.project-transfer-step.is-running { border-color: #93c5fd; background: #eff6ff; }
.project-transfer-step.is-running .project-transfer-step-icon { animation: processing-spin .8s linear infinite; color: #1d4ed8; }
.project-transfer-step.is-success .project-transfer-step-icon { color: #067647; background: #ecfdf3; }
.project-transfer-step.is-missing .project-transfer-step-icon { color: #667085; background: #f2f4f7; }
.project-transfer-step.is-skipped .project-transfer-step-icon { color: #667085; background: #f2f4f7; }
.project-transfer-step.is-error { border-color: #fca5a5; background: #fff1f1; }
.project-transfer-step.is-error .project-transfer-step-icon { color: #b42318; background: #fee4e2; }
.project-transfer-result-summary { display: grid; gap: 8px; padding: 16px; border: 1px solid #a7f3d0; border-radius: 13px; background: #ecfdf3; line-height: 1.55; }
.project-transfer-result-summary[data-tone="error"] { border-color: #fca5a5; background: #fff1f1; }
.project-transfer-actions { display: flex; justify-content: flex-end; gap: 9px; padding: 14px 18px; border-top: 1px solid var(--line); background: #fff; }
body.project-transfer-open { overflow: hidden; }
@media (max-width: 620px) {
  .project-transfer-modal { padding: 0; place-items: stretch; }
  .project-transfer-dialog { width: 100vw; max-height: 100dvh; min-height: 100dvh; border: 0; border-radius: 0; }
  .project-transfer-body { padding: 14px 12px; }
  .project-transfer-actions { position: sticky; bottom: 0; flex-wrap: nowrap; overflow-x: auto; padding: 10px max(12px, env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left)); }
  .project-transfer-actions .button { min-width: 132px; min-height: 48px; flex: 1 0 auto; }
  .project-transfer-file-preview { display: grid; }
  .project-transfer-file-preview strong { text-align: left; }
  .project-transfer-step { grid-template-columns: 24px minmax(0,1fr); }
  .project-transfer-step small { grid-column: 2; text-align: left; }
}

/* Independent zoomable strict-square grid calibration workbench. */
.recognition-dialog.is-grid-calibration-open { grid-template-rows: auto minmax(0,1fr); width: min(1500px,calc(100vw - 24px)); height: min(960px,calc(100dvh - 24px)); max-height: none; }
.recognition-dialog.is-grid-calibration-open > :not(.recognition-dialog-header):not(.recognition-grid-confirmation) { display: none !important; }
.recognition-grid-confirmation { min-height: 0; padding: 12px 14px; border-block: 1px solid #cbd5e1; background: var(--recognition-subtle-bg); overflow: hidden; display: grid; grid-template-rows: auto auto minmax(0,1fr) auto; gap: 10px; }
.recognition-grid-confirmation[hidden] { display: none !important; }
.recognition-grid-workbench-header,
.recognition-grid-confirmation > footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.recognition-grid-workbench-header > div { display: grid; gap: 3px; }
.recognition-grid-workbench-header span { color: #475467; font-size: 12px; }
#recognitionGridQualityScore { padding: 5px 9px; border-radius: 999px; background: #ecfdf3; color: #067647; font-weight: 800; white-space: nowrap; }
.recognition-grid-view-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; min-width: 0; }
.recognition-grid-confirmation-layout { display: grid; grid-template-columns: minmax(0,1fr) 220px; gap: 12px; min-height: 0; }
.recognition-grid-viewport { position: relative; min-width: 0; min-height: 420px; overflow: auto; border: 1px solid #64748b; border-radius: 12px; background: var(--recognition-grid-viewport-bg); overscroll-behavior: contain; touch-action: none; cursor: grab; }
.recognition-grid-viewport.is-panning { cursor: grabbing; user-select: none; }
.recognition-grid-surface { position: relative; width: 1px; height: 1px; margin: 0; flex: none; transform-origin: 0 0; }
#recognitionGridOverlayCanvas { display: block; width: 100%; height: 100%; background: #fff; touch-action: none; cursor: inherit; }
.recognition-grid-confirmation.is-nine-cell #recognitionGridOverlayCanvas { cursor: crosshair; }
.recognition-grid-magnifier { position: absolute; z-index: 6; width: 180px; height: 180px; border: 2px solid #fff; border-radius: 12px; background: #fff; box-shadow: 0 8px 26px rgba(15,23,42,.38); pointer-events: none; image-rendering: pixelated; }
.recognition-grid-magnifier[hidden] { display: none !important; }
.recognition-grid-controls { display: grid; align-content: start; gap: 10px; padding: 10px; border: 1px solid #d0d5dd; border-radius: 12px; background: var(--recognition-grid-controls-bg); overflow: auto; }
.recognition-grid-controls small { color: #667085; line-height: 1.5; }
.recognition-grid-nudge { display: grid; grid-template-columns: repeat(4,1fr); gap: 5px; }
.recognition-grid-quality-warning { margin: 0; padding: 8px 9px; border-radius: 8px; color: #9a3412; background: #fff7ed; font-size: 12px; line-height: 1.5; }
.recognition-grid-confirmation > footer { justify-content: flex-end; }
.recognition-grid-confirmation:fullscreen { width: 100vw; height: 100vh; padding: 14px; background: var(--recognition-subtle-bg); }
.recognition-grid-confirmation:fullscreen .recognition-grid-viewport { min-height: 0; }
@media (max-width: 760px) {
  .recognition-dialog.is-grid-calibration-open { width: 100%; height: 100dvh; max-height: none; border-radius: 0; }
  .recognition-grid-confirmation { padding: 9px; }
  .recognition-grid-workbench-header { align-items: flex-start; }
  .recognition-grid-view-toolbar { display: grid; gap: 7px; }
  .recognition-grid-view-toolbar .recognition-view-actions { overflow-x: auto; padding-bottom: 3px; }
  .recognition-grid-confirmation-layout { grid-template-columns: 1fr; grid-template-rows: minmax(46vh,1fr) auto; }
  .recognition-grid-viewport { min-height: 46vh; }
  .recognition-grid-controls { grid-template-columns: repeat(2,minmax(0,1fr)); max-height: 180px; }
  .recognition-grid-controls .range-field,
  .recognition-grid-controls small,
  .recognition-grid-controls .recognition-grid-quality-warning { grid-column: 1/-1; }
  .recognition-grid-confirmation > footer .button { flex: 1; }
}

/* Strict-square grid size calibration and direct recognition actions. */
.recognition-dialog-action {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: normal;
}
.recognition-grid-cell-size {
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 1px solid #d0d5dd;
  border-radius: 10px;
  background: var(--recognition-subtle-bg);
}
.recognition-grid-cell-size-buttons {
  display: grid;
  grid-template-columns: minmax(0,1fr) 86px minmax(0,1fr);
  gap: 6px;
  align-items: center;
}
.recognition-grid-cell-size-buttons input {
  width: 100%;
  min-height: 38px;
  padding: 6px 8px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  text-align: center;
  background: var(--recognition-control-bg);
}
.recognition-grid-cell-size input[type="range"] { width: 100%; }
@media (max-width: 720px) {
  .recognition-grid-cell-size-buttons { grid-template-columns: 1fr 74px 1fr; }
  .recognition-grid-cell-size-buttons .button { padding-inline: 6px; }
}

/* v2.1.0 functional-test professional drawing workspace */
.professional-drawing-entry.is-locked { opacity: .48; }
.professional-drawing-entry.is-locked:hover { transform: none; border-color: var(--line-strong); }
body.professional-drawing-active > .topbar,
body.professional-drawing-active > .app-shell,
body.professional-drawing-active > .mobile-action-bar,
body.professional-drawing-active > .bead-mode-page { display: none !important; }
.professional-drawing-page { min-height: 100dvh; padding: 14px; background: #eef1f7; color: #172033; }
.professional-drawing-page[hidden] { display: none !important; }
.professional-drawing-header { max-width: 1680px; margin: 0 auto 12px; display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.professional-drawing-header h1 { margin: 0; font-size: clamp(1.4rem, 2.5vw, 2rem); }
.professional-drawing-header > div:first-child > span { color: #667085; }
.professional-drawing-eyebrow { margin: 0 0 4px; color: #5b5bd6; font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.professional-drawing-header-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.professional-drawing-layout { max-width: 1680px; min-height: calc(100dvh - 92px); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr) 68px minmax(230px, 270px); gap: 12px; }
.professional-drawing-canvas-panel,
.professional-drawing-tool-rail,
.professional-drawing-palette-panel { min-width: 0; border: 1px solid #d8deea; border-radius: 16px; background: #fff; box-shadow: 0 12px 32px rgba(43, 55, 78, .08); }
.professional-drawing-canvas-panel { min-height: 0; display: grid; grid-template-rows: auto auto minmax(0, 1fr) auto; overflow: hidden; }
.professional-drawing-canvas-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 14px; border-bottom: 1px solid #e6eaf1; }
.professional-drawing-canvas-heading output { color: #5d6678; font-variant-numeric: tabular-nums; }
.professional-drawing-canvas-heading-actions { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 10px; }
.professional-drawing-canvas-heading-actions .button { min-height: 34px; padding: 6px 10px; }
.professional-drawing-reference-controls { display: flex; align-items: end; flex-wrap: wrap; gap: 8px 12px; padding: 8px 12px; border-bottom: 1px solid #e6eaf1; background: #fbfcff; }
.professional-drawing-reference-controls label { min-width: 0; display: grid; gap: 3px; color: #667085; font-size: .7rem; font-weight: 700; }
.professional-drawing-reference-controls select,
.professional-drawing-reference-controls input[type="number"] { min-height: 34px; border: 1px solid #cfd6e4; border-radius: 8px; background: #fff; color: #344054; padding: 5px 8px; }
.professional-drawing-reference-controls select:disabled,
.professional-drawing-reference-controls input:disabled { opacity: .55; }
.professional-drawing-opacity { flex: 1 1 250px; max-width: 380px; display: grid; gap: 5px; color: #667085; font-size: .7rem; font-weight: 700; }
.professional-drawing-opacity-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.professional-drawing-opacity-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 5px; }
.professional-drawing-opacity-actions .button { min-height: 28px; padding: 3px 7px; font-size: .68rem; }
.professional-drawing-opacity input { width: 100%; }

.professional-drawing-bulk-target-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; }
.professional-drawing-bulk-target-row > select,
.professional-drawing-bulk-target-row > input { width: 100%; min-width: 0; }
#professionalDrawingOpacityHoldInvertButton { user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; touch-action: none; }
.professional-drawing-grid-actions { display: flex; align-items: end; gap: 6px; margin-left: auto; }
.professional-drawing-grid-actions .button { min-height: 34px; padding: 6px 10px; }
.professional-drawing-stage { position: relative; width: 1px; height: 1px; margin: 0; isolation: isolate; will-change: transform; backface-visibility: hidden; }
.professional-drawing-stage canvas { position: absolute; inset: 0; display: block; max-width: none; max-height: none; }
.professional-drawing-reference-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; max-width: none; max-height: none; pointer-events: none; user-select: none; will-change: opacity; backface-visibility: hidden; }
.professional-drawing-reference-canvas[hidden] { display: none !important; }
.professional-drawing-stage.reference-above .professional-drawing-reference-canvas { mix-blend-mode: normal; }
.professional-drawing-viewport { min-height: 0; overflow: auto; overscroll-behavior: contain; touch-action: none; background: #f8fafc; }
.professional-drawing-viewport canvas { display: block; max-width: none; max-height: none; }
.professional-drawing-status { min-height: 42px; padding: 11px 14px; border-top: 1px solid #e6eaf1; color: #5d6678; font-size: .82rem; }
.professional-drawing-tool-rail { display: grid; align-content: start; gap: 10px; padding: 8px; }
.professional-drawing-tool-rail [role="toolbar"] { display: grid; gap: 5px; padding-bottom: 10px; border-bottom: 1px solid #e6eaf1; }
.professional-drawing-tool-rail [role="toolbar"]:last-child { padding-bottom: 0; border-bottom: 0; }
.professional-drawing-tool-rail button,
.professional-drawing-mobile-toolbar button { display: inline-flex; align-items: center; justify-content: center; gap: 3px; min-height: 44px; border: 1px solid transparent; border-radius: 9px; background: transparent; color: #344054; cursor: pointer; }
.professional-drawing-tool-rail button { flex-direction: column; padding: 4px; font-size: 1.05rem; }
.professional-drawing-tool-rail button span,
.professional-drawing-mobile-toolbar button span { font-size: .68rem; line-height: 1; }
.professional-drawing-tool-rail button:hover:not(:disabled),
.professional-drawing-mobile-toolbar button:hover:not(:disabled) { border-color: #cfcfff; background: #f4f3ff; color: #4545b8; }
.professional-drawing-tool-rail button[aria-pressed="true"],
.professional-drawing-mobile-toolbar button[aria-pressed="true"] { border-color: #cfcfff; background: #ededff; color: #4545b8; font-weight: 800; box-shadow: inset 0 -4px 0 currentColor; }
.professional-drawing-palette-panel { min-height: 0; display: grid; grid-template-rows: auto auto auto auto minmax(0, 1fr); overflow: hidden; padding: 12px; }
.professional-drawing-palette-panel > header { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-bottom: 10px; border-bottom: 1px solid #e6eaf1; }
.professional-drawing-color-summary { display: grid; gap: 8px; padding: 10px 0; }
.professional-drawing-color-summary > div { display: grid; grid-template-columns: 32px minmax(0, 1fr); align-items: center; gap: 8px; }
.professional-drawing-color-summary .swatch { width: 32px; height: 32px; border-radius: 9px; }
.professional-drawing-color-summary .is-empty { background: repeating-linear-gradient(135deg, #eef2f6 0 5px, #fff 5px 10px); }
.professional-drawing-color-summary > div > span:last-child { min-width: 0; display: grid; gap: 1px; }
.professional-drawing-color-summary small,
.professional-drawing-color-summary > div > span:last-child > span { overflow: hidden; color: #667085; font-size: .72rem; text-overflow: ellipsis; white-space: nowrap; }
.professional-drawing-color-summary strong { color: #344054; font-size: .82rem; }
.professional-drawing-palette-panel .field.compact { margin: 8px 0; }
.professional-drawing-color-list { min-height: 0; max-height: 507px; align-self: start; overflow-y: auto; overscroll-behavior: contain; display: grid; align-content: start; gap: 7px; padding: 3px 1px 1px; }
.professional-drawing-color-item { position: relative; width: 100%; min-height: 44px; display: grid; grid-template-columns: 32px minmax(0, 1fr) auto; align-items: center; gap: 9px; padding: 6px 34px 6px 8px; border: 1px solid #d8deea; border-radius: 10px; background: #fff; color: #344054; text-align: left; cursor: pointer; }
.professional-drawing-color-item .swatch { width: 30px; height: 30px; border: 1px solid rgba(15, 23, 42, .14); border-radius: 8px; }
.professional-drawing-color-item .meta { min-width: 0; display: grid; gap: 1px; }
.professional-drawing-color-item .code { font-size: .82rem; font-weight: 800; }
.professional-drawing-color-item .name { overflow: hidden; color: #667085; font-size: .72rem; text-overflow: ellipsis; white-space: nowrap; }
.professional-drawing-color-item .delta-e { color: #5d6678; font-size: .7rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.professional-drawing-color-item:hover { border-color: #aaaaf0; background: #f7f7ff; }
.professional-drawing-color-item:focus-visible { outline: 3px solid #7c7ce7; outline-offset: 2px; }
.professional-drawing-color-item[aria-selected="true"] { border-width: 2px; border-color: #5b5bd6; font-weight: 800; box-shadow: inset 4px 0 0 #5b5bd6; }
.professional-drawing-color-item[aria-selected="true"]::after { content: "✓"; position: absolute; right: 11px; top: 50%; transform: translateY(-50%); font-size: 1rem; font-weight: 900; }
.professional-drawing-palette-open,
.professional-drawing-mobile-toolbar,
.professional-drawing-palette-panel > header .icon-button { display: none; }

@media (max-width: 760px) {
  .professional-drawing-page { padding: 10px 10px calc(74px + env(safe-area-inset-bottom)); }
  .professional-drawing-header { align-items: flex-start; margin-bottom: 10px; }
  .professional-drawing-header-actions { display: grid; grid-template-columns: 1fr; flex: 0 0 auto; }
  .professional-drawing-header-actions .button { min-height: 44px; padding-inline: 9px; }
  .professional-drawing-layout { min-height: calc(100dvh - 138px - env(safe-area-inset-bottom)); grid-template-columns: minmax(0, 1fr); gap: 0; }
  .professional-drawing-canvas-panel { min-height: 0; border-radius: 14px; }
  .professional-drawing-canvas-heading { padding: 9px 10px; }
  .professional-drawing-canvas-heading-actions { gap: 6px; }
  .professional-drawing-canvas-heading-actions .button { min-height: 36px; padding-inline: 8px; font-size: .76rem; }
  .professional-drawing-reference-controls { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 8px; padding: 8px 10px; }
  .professional-drawing-opacity { grid-column: 1 / -1; max-width: none; }
  .professional-drawing-tool-rail { display: none; }
  .professional-drawing-palette-panel { position: fixed; z-index: 60; right: 8px; bottom: calc(8px + env(safe-area-inset-bottom)); left: 8px; max-height: min(72dvh, 620px); padding: 12px; transform: translateY(calc(100% + 24px)); transition: transform .2s ease; pointer-events: none; }
  .professional-drawing-palette-panel.is-open { transform: translateY(0); pointer-events: auto; }
  .professional-drawing-palette-panel > header .icon-button { display: inline-flex; min-width: 44px; min-height: 44px; }
  .professional-drawing-color-list { min-height: 0; overflow-y: auto; }
  .professional-drawing-mobile-toolbar { position: fixed; z-index: 50; right: 0; bottom: 0; left: 0; display: flex; align-items: stretch; gap: 6px; min-height: 56px; overflow-x: auto; overscroll-behavior-x: contain; padding: 6px 8px calc(6px + env(safe-area-inset-bottom)); border-top: 1px solid #d8deea; background: rgba(255, 255, 255, .97); box-shadow: 0 -8px 24px rgba(43, 55, 78, .10); }
  .professional-drawing-mobile-toolbar button { flex: 0 0 52px; min-width: 44px; min-height: 44px; flex-direction: column; padding: 3px 4px; }
  .professional-drawing-palette-open { display: inline-flex !important; }
}

/* recognition side tools + quick generation preview */
.recognition-preprocess-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.recognition-preprocess-actions .button { min-width: 0; padding-inline: 8px; }
.quick-preview-action-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 4px; }
.quick-preview-action-row .button { width: 100%; min-width: 0; }

.quick-preview-controls {
  display: grid;
  gap: 9px;
  padding: 11px;
  border: 1px solid #c7d2fe;
  border-radius: 12px;
  background: #f5f7ff;
}
.quick-preview-controls[hidden] { display: none; }
.quick-preview-controls-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.quick-preview-controls-header > div { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
.quick-preview-controls-header strong { color: #312e81; font-size: 13px; }
.quick-preview-range { display: grid; grid-template-columns: auto minmax(0, 1fr) 36px; align-items: center; gap: 8px; color: #475467; font-size: 12px; }
.quick-preview-range input { width: 100%; }
.quick-preview-range output { color: #312e81; font-weight: 800; text-align: right; }
.quick-preview-metrics { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.quick-preview-metrics strong { color: #111827; font-size: 13px; }
.quick-preview-metrics span, .quick-preview-controls small { color: #667085; font-size: 11px; line-height: 1.45; }
.quick-preview-button[aria-pressed="true"] { border-color: #4f46e5; background: #eef2ff; color: #3730a3; }
.quick-preview-stage {
  width: min(860px, 100%);
  min-width: 0;
  min-height: 0;
  max-height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 10px;
  justify-items: center;
  padding: 14px;
  border: 1px solid #c7d2fe;
  border-radius: 14px;
  background: rgba(255,255,255,.94);
  box-shadow: 0 7px 28px rgba(31, 41, 55, .14);
}
.quick-preview-stage[hidden] { display: none; }
.quick-preview-stage-heading { width: 100%; display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.quick-preview-stage-heading strong { color: #312e81; }
.quick-preview-stage-heading span { color: #475467; font-size: 12px; text-align: right; }
#quickPreviewCanvas { display: block; max-width: 100%; max-height: 100%; image-rendering: pixelated; background: #fff; box-shadow: 0 4px 18px rgba(15,23,42,.16); }
.quick-preview-stage small { color: #667085; font-size: 11px; text-align: center; }

.recognition-dialog {
  grid-template-rows: auto minmax(0, 1fr) auto;
}
.recognition-main-shell {
  position: relative;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 330px);
  overflow: hidden;
  background: transparent;
}
.recognition-main-shell.tools-hidden { grid-template-columns: minmax(0, 1fr); }
.recognition-visual-workspace {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  background: transparent;
}
.recognition-tools-panel {
  min-width: 0;
  min-height: 0;
  overflow-y: auto;
  border-left: 1px solid #94a3b8;
  background: var(--recognition-subtle-bg);
  scrollbar-gutter: stable;
}
.recognition-tools-panel[hidden] { display: none; }
.recognition-tools-panel-header {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid #cbd5e1;
  background: var(--recognition-tools-header-bg);
}
.recognition-tools-panel-header > div { min-width: 0; display: grid; gap: 1px; }
.recognition-tools-panel-header strong { color: #172554; font-size: 14px; }
.recognition-tools-panel-header span { color: #667085; font-size: 11px; }
.recognition-tools-panel-header .button { min-height: 34px; padding: 5px 8px; white-space: nowrap; font-size: 12px; }
.recognition-tools-panel .recognition-section-header { padding-inline: 12px; }
.recognition-tools-panel .recognition-toolbar { display: grid; grid-template-columns: 1fr 1fr; align-items: stretch; padding: 10px 12px; }
.recognition-tools-panel .recognition-toolbar .compact-field,
.recognition-tools-panel .recognition-toolbar .recognition-brand { min-width: 0; width: 100%; }
.recognition-tools-panel .recognition-toolbar .recognition-brand,
.recognition-tools-panel .recognition-toolbar .recognition-dimension-row { grid-column: 1 / -1; }
.recognition-tools-panel .recognition-toolbar .recognition-dimension-row .compact-field { min-width: 0; width: 100%; }
.recognition-tools-panel .recognition-toolbar .button { width: 100%; min-width: 0; }
.recognition-tools-panel .recognition-selection-controls { padding: 10px 12px; }
.recognition-tools-panel .recognition-selection-control-row { align-items: stretch; flex-direction: column; }
.recognition-tools-panel .recognition-selection-segment { width: 100%; }
.recognition-tools-panel .recognition-selection-segment button { flex: 1; }
.recognition-tools-panel .recognition-review-actions { width: 100%; display: grid; grid-template-columns: 1fr; }
.recognition-tools-panel .recognition-review-actions .button { width: 100%; }
.recognition-tools-panel .recognition-status { padding: 9px 12px; }
.recognition-tools-show-button {
  position: absolute;
  z-index: 7;
  right: 10px;
  top: 10px;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid #64748b;
  border-radius: 10px;
  background: rgba(255,255,255,.96);
  color: #172554;
  font-weight: 800;
  box-shadow: 0 5px 16px rgba(15,23,42,.16);
  cursor: pointer;
}
.recognition-tools-show-button[hidden] { display: none; }

/* Tablet keeps the right-side tools, but stacks the two comparison canvases to preserve usable width. */
@media (min-width: 700px) and (max-width: 1050px) {
  .recognition-modal { padding: 0; }
  .recognition-dialog { width: 100vw; height: 100dvh; min-height: 100dvh; border: 0; border-radius: 0; }
  .recognition-main-shell { grid-template-columns: minmax(0, 1fr) minmax(260px, 300px); }
  .recognition-preview-grid { grid-template-columns: 1fr; overflow: auto; }
  .recognition-preview-panel { min-height: 300px; }
  .recognition-view-toolbar { flex-wrap: wrap; }
}

/* Phone layout remains independent and vertical. */
@media (max-width: 699px) {
  .recognition-modal { padding: 0; }
  .recognition-dialog { width: 100vw; height: 100dvh; min-height: 100dvh; border: 0; border-radius: 0; grid-template-rows: auto minmax(0, 1fr) auto; }
  .recognition-main-shell { grid-template-columns: 1fr; grid-template-rows: minmax(360px, 1fr) auto; overflow: auto; }
  .recognition-main-shell.tools-hidden { grid-template-columns: 1fr; grid-template-rows: minmax(0, 1fr); }
  .recognition-visual-workspace { min-height: 480px; overflow: visible; }
  .recognition-preview-grid { grid-template-columns: 1fr; overflow: visible; }
  .recognition-preview-panel { min-height: 320px; }
  .recognition-tools-panel { max-height: none; border-left: 0; border-top: 1px solid #94a3b8; overflow: visible; }
  .recognition-tools-panel-header { position: static; }
  .recognition-tools-panel .recognition-toolbar { grid-template-columns: 1fr; max-height: none; overflow: visible; }
  .recognition-tools-show-button { position: sticky; top: 8px; justify-self: end; margin: 8px; }
  .recognition-preprocess-actions { grid-template-columns: 1fr; }
}

.recognition-dialog.is-grid-calibration-open { grid-template-rows: auto minmax(0, 1fr); }
.recognition-dialog.is-grid-calibration-open > .recognition-main-shell,
.recognition-dialog.is-grid-calibration-open > .recognition-dialog-footer { display: none !important; }
.recognition-dialog.is-grid-calibration-open > .recognition-grid-confirmation { display: grid; min-height: 0; }
.recognition-visual-status {
  min-height: 34px;
  padding: 7px 12px;
  border-bottom: 1px solid #cbd5e1;
  background: var(--recognition-subtle-bg);
  color: #344054;
  font-size: 12px;
  line-height: 1.45;
}
.recognition-visual-status[hidden] { display: none; }
.recognition-visual-status[data-tone="error"] { color: #b42318; background: #fff1f1; }
.recognition-visual-status[data-tone="success"] { color: #067647; background: #ecfdf3; }
.recognition-main-shell.tools-hidden .recognition-visual-workspace { grid-template-rows: auto auto minmax(0, 1fr); }

/* v2.4.0 functional-test: free canvas views + application fullscreen */
.canvas-viewport { overflow: hidden; }
#patternCanvas.visible {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  will-change: transform;
}
.view-bar-fit-actions { display: inline-flex; align-items: center; gap: 6px; }

.professional-drawing-viewport {
  position: relative;
  overflow: hidden;
}
.professional-drawing-stage {
  position: absolute;
  left: 0;
  top: 0;
  margin: 0;
  transform-origin: 0 0;
  will-change: transform;
}

body.app-immersive-mode { overflow: hidden; }
body.app-immersive-mode > .topbar {
  position: fixed;
  z-index: 1200;
  inset: 0 0 auto;
  width: 100%;
  min-height: 52px;
  height: 52px;
  padding: 7px max(10px, env(safe-area-inset-right)) 7px max(10px, env(safe-area-inset-left));
  gap: 10px;
  border: 0;
  border-bottom: 1px solid var(--panel-border);
  background: var(--toolbar-bg);
  box-shadow: 0 3px 12px rgba(28, 36, 48, .08);
  backdrop-filter: blur(14px) saturate(135%);
  -webkit-backdrop-filter: blur(14px) saturate(135%);
}
body.app-immersive-mode > .topbar .brand-block { display: flex !important; gap: 7px; }
body.app-immersive-mode > .topbar .brand-mark { width: 34px; height: 34px; }
body.app-immersive-mode > .topbar .brand-block > div { display: grid; align-content: center; gap: 0; min-width: 0; }
body.app-immersive-mode > .topbar .brand-block h1 { font-size: 14px; line-height: 1.05; white-space: nowrap; }
body.app-immersive-mode > .topbar .app-version { justify-self: start; margin: 1px 0 0; padding: 1px 5px; font-size: 9.5px; line-height: 1.05; white-space: nowrap; }
body.app-immersive-mode > .topbar .top-actions { margin-left: auto; display: flex; align-items: center; flex-wrap: nowrap; gap: 6px; min-width: 0; }
body.app-immersive-mode > .topbar .top-actions .button { min-height: 38px; height: 38px; padding: 8px 13px; border-radius: var(--radius-control); font-size: inherit; white-space: nowrap; }
@media (max-width: 620px) {
  body.app-immersive-mode > .topbar { padding-inline: max(6px, env(safe-area-inset-left)); gap: 5px; }
  body.app-immersive-mode > .topbar .brand-block { gap: 4px; }
  body.app-immersive-mode > .topbar .brand-mark { width: 30px; height: 30px; }
  body.app-immersive-mode > .topbar .brand-block h1 { font-size: 12px; }
  body.app-immersive-mode > .topbar .app-version { padding-inline: 3px; font-size: 8px; }
  body.app-immersive-mode > .topbar .top-actions { gap: 3px; }
  body.app-immersive-mode > .topbar .top-actions .button { min-height: 38px; height: 38px; padding: 7px 10px; font-size: 12px; }
}
body.app-immersive-mode > .app-shell {
  max-width: none;
  min-height: 100dvh;
  padding: 6px;
  gap: 8px;
}
body.app-fullscreen-active > .app-shell { max-width: none; min-height: 100dvh; }

@media (max-width: 620px) {
  .view-bar-fit-actions { order: 2; }
}

/* v2.5.0 unified file naming and save flows */
.file-export-modal {
  position: fixed; inset: 0; z-index: 90; display: grid; place-items: center;
  padding: 20px; background: rgba(20, 28, 38, 0.54); backdrop-filter: blur(8px);
}
.file-export-modal[hidden] { display: none; }
.file-export-dialog {
  width: min(560px, 100%); max-height: min(760px, calc(100vh - 32px)); overflow: auto;
  background: var(--panel); border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 24px 70px rgba(20, 28, 38, .24);
}
.file-export-dialog > header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 20px 12px; border-bottom: 1px solid var(--line); }
.file-export-dialog > header h2 { margin: 2px 0 0; font-size: 18px; }
.file-export-body { display: grid; gap: 14px; padding: 18px 20px; }
.file-name-field { display: grid; gap: 7px; font-weight: 700; color: var(--text); }
.file-name-input-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; overflow: hidden; border: 1px solid var(--line-strong); border-radius: 10px; background: #fff; }
.file-name-input-row:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(91,91,214,.12); }
.file-name-input-row input { width: 100%; min-width: 0; border: 0; outline: 0; padding: 10px 12px; background: transparent; }
.file-name-extension { padding: 10px 12px; color: var(--muted); background: var(--panel-soft); border-left: 1px solid var(--line); white-space: nowrap; font-weight: 600; }
.file-save-status { min-height: 0; display: grid; gap: 4px; font-weight: 700; }
.file-save-status:empty { display: none; }
.file-save-status[data-tone="error"] { color: #c32632; }
.file-save-status[data-tone="success"] { color: var(--success); }
.file-save-status[data-tone="cancelled"] { color: var(--muted); }
.file-save-status small { font-weight: 500; color: inherit; }
.other-save-methods { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel-soft); }
.other-save-methods[hidden] { display: none; }
.button.is-attention { box-shadow: 0 0 0 3px rgba(195, 38, 50, .18); border-color: #c32632; }
.project-file-name-field { margin-top: 12px; }
@media (max-width: 620px) {
  .file-export-modal { padding: 10px; align-items: end; }
  .file-export-dialog { width: 100%; max-height: calc(100vh - 10px); border-radius: 16px 16px 0 0; }
  .file-name-input-row { grid-template-columns: minmax(0, 1fr); }
  .file-name-extension { border-left: 0; border-top: 1px solid var(--line); padding: 7px 12px; }
}

body.file-export-open { overflow: hidden; }

/* v2.6.0 unified webpage fullscreen + Apple touch Safari immersive behavior */
:root {
  --app-viewport-width: 100vw;
  --app-viewport-height: 100dvh;
}

.recognition-dialog-header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
body.app-immersive-mode {
  width: var(--app-viewport-width, 100vw);
  min-height: var(--app-viewport-height, 100dvh);
  height: var(--app-viewport-height, 100dvh);
  overflow: hidden;
  overscroll-behavior: none;
}

body.app-immersive-mode.professional-drawing-active > .topbar,
body.app-immersive-mode.bead-mode-active > .topbar,
body.app-immersive-mode.recognition-open > .topbar { display: none !important; }

body.app-immersive-mode > .app-shell {
  min-height: var(--app-viewport-height, 100dvh);
  height: var(--app-viewport-height, 100dvh);
  padding-top: max(6px, env(safe-area-inset-top));
  padding-right: max(6px, env(safe-area-inset-right));
  padding-bottom: max(6px, env(safe-area-inset-bottom));
  padding-left: max(6px, env(safe-area-inset-left));
}

body.app-immersive-mode .professional-drawing-page,
body.app-immersive-mode .bead-mode-page {
  min-height: var(--app-viewport-height, 100dvh);
  height: var(--app-viewport-height, 100dvh);
  overflow: hidden;
  padding-top: max(10px, env(safe-area-inset-top));
  padding-right: max(10px, env(safe-area-inset-right));
  padding-bottom: max(10px, env(safe-area-inset-bottom));
  padding-left: max(10px, env(safe-area-inset-left));
}

body.app-immersive-mode .professional-drawing-layout,
body.app-immersive-mode .bead-mode-layout {
  min-height: 0;
  height: calc(var(--app-viewport-height, 100dvh) - 92px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
}

body.app-immersive-mode .recognition-modal {
  width: var(--app-viewport-width, 100vw);
  height: var(--app-viewport-height, 100dvh);
  inset: 0;
  padding-top: env(safe-area-inset-top);
  padding-right: env(safe-area-inset-right);
  padding-bottom: env(safe-area-inset-bottom);
  padding-left: env(safe-area-inset-left);
}

body.app-immersive-mode .recognition-dialog,
body.app-immersive-mode .recognition-dialog.is-grid-calibration-open {
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  border-radius: 0;
}

@media (max-width: 620px) {
  .recognition-dialog-header-actions { gap: 5px; }
  body.app-immersive-mode .professional-drawing-page,
  body.app-immersive-mode .bead-mode-page {
    padding-top: max(6px, env(safe-area-inset-top));
    padding-right: max(6px, env(safe-area-inset-right));
    padding-bottom: max(6px, env(safe-area-inset-bottom));
    padding-left: max(6px, env(safe-area-inset-left));
  }
}
html.app-immersive-mode { overflow: hidden; overscroll-behavior: none; }
body.app-fullscreen-active .professional-drawing-page,
body.app-fullscreen-active .bead-mode-page {
  min-height: 100dvh;
  height: 100dvh;
  overflow: hidden;
  padding-top: max(10px, env(safe-area-inset-top));
  padding-right: max(10px, env(safe-area-inset-right));
  padding-bottom: max(10px, env(safe-area-inset-bottom));
  padding-left: max(10px, env(safe-area-inset-left));
}
body.app-fullscreen-active .professional-drawing-layout,
body.app-fullscreen-active .bead-mode-layout {
  min-height: 0;
  height: calc(100dvh - 92px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
}
body.app-fullscreen-active .recognition-modal { padding: 0; }
body.app-fullscreen-active .recognition-dialog,
body.app-fullscreen-active .recognition-dialog.is-grid-calibration-open {
  width: 100vw;
  height: 100dvh;
  max-width: none;
  max-height: none;
  border: 0;
  border-radius: 0;
}

/* v2.7.0 functional-test: drawing interaction reliability + quick tools */
.top-settings-toggle { min-height: 40px; display: flex; align-items: center; gap: 9px; padding: 8px 10px; border-radius: 8px; color: #344054; font-size: 13px; font-weight: 650; cursor: pointer; }
.top-settings-toggle:hover { background: var(--primary-soft); color: var(--primary-dark); }
.top-settings-toggle input { width: 17px; height: 17px; margin: 0; }

.drawing-quick-tool-rail { position: fixed; z-index: 58; top: 50%; right: max(10px, env(safe-area-inset-right)); transform: translateY(-50%); display: grid; gap: 5px; width: 58px; padding: 6px; border: 1px solid #d8deea; border-radius: 14px; background: rgba(255,255,255,.96); box-shadow: 0 14px 38px rgba(15,23,42,.16); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.drawing-quick-tool-rail[hidden] { display: none !important; }
.drawing-quick-tool-rail button { min-width: 44px; min-height: 48px; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px; padding: 4px; border: 1px solid transparent; border-radius: 9px; background: transparent; color: #344054; cursor: pointer; font-size: 1.05rem; }
.drawing-quick-tool-rail button span { font-size: .68rem; line-height: 1; }
.drawing-quick-tool-rail button:hover:not(:disabled) { border-color: #cfcfff; background: #f4f3ff; color: #4545b8; }
.drawing-quick-tool-rail button[aria-pressed="true"] { border-color: #cfcfff; background: #ededff; color: #4545b8; font-weight: 800; box-shadow: inset 0 -4px 0 currentColor; }
.drawing-quick-tool-rail button:disabled { opacity: .42; cursor: not-allowed; }
body.app-immersive-mode .drawing-quick-tool-rail,
body.app-fullscreen-active .drawing-quick-tool-rail { right: max(10px, env(safe-area-inset-right)); }

.professional-drawing-bulk-modal { position: fixed; z-index: 120; inset: 0; display: grid; place-items: center; padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left)); background: rgba(15,23,42,.55); }
.professional-drawing-bulk-modal[hidden] { display: none !important; }
.professional-drawing-bulk-dialog { width: min(560px, 100%); max-height: min(760px, calc(100dvh - 32px)); overflow: hidden; display: grid; grid-template-rows: auto minmax(0,1fr) auto; border: 1px solid #cbd5e1; border-radius: 18px; background: #fff; box-shadow: 0 28px 80px rgba(0,0,0,.38); }
.professional-drawing-bulk-dialog > header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.professional-drawing-bulk-dialog > header small { color: #667085; font-weight: 700; }
.professional-drawing-bulk-dialog > header h2 { margin: 2px 0 0; font-size: 20px; }
.professional-drawing-bulk-body { min-height: 0; overflow-y: auto; display: grid; gap: 14px; padding: 18px; overscroll-behavior: contain; }
.professional-drawing-bulk-impact { padding: 12px 14px; border: 1px solid #d8deea; border-radius: 12px; background: #f8fafc; color: #475467; line-height: 1.55; }
.professional-drawing-bulk-impact[data-tone="warning"] { border-color: #f4c978; background: #fff8e8; color: #8a4b08; }
.professional-drawing-bulk-impact[data-tone="success"] { border-color: #a8dcc5; background: #effaf5; color: #166534; }
.professional-drawing-bulk-dialog > footer { display: flex; justify-content: flex-end; gap: 8px; padding: 14px 18px; border-top: 1px solid var(--line); }

@media (max-width: 760px) {
  .drawing-quick-tool-rail { right: max(6px, env(safe-area-inset-right)); width: 52px; padding: 5px; border-radius: 12px; }
  .drawing-quick-tool-rail button { min-width: 42px; min-height: 44px; }
  .professional-drawing-bulk-modal { padding: 8px max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); align-items: end; }
  .professional-drawing-bulk-dialog { width: 100%; max-height: min(86dvh, 720px); border-radius: 16px 16px 10px 10px; }
  .professional-drawing-bulk-dialog > footer .button { flex: 1; }
}
.professional-drawing-bulk-body [hidden] { display: none !important; }
body.drawing-quick-toolbar-visible .app-shell { padding-right: max(82px, calc(72px + env(safe-area-inset-right))); }
body.drawing-quick-toolbar-visible .professional-drawing-page { padding-right: max(82px, calc(72px + env(safe-area-inset-right))); }
@media (max-width: 760px) {
  body.drawing-quick-toolbar-visible .app-shell { padding-right: max(64px, calc(58px + env(safe-area-inset-right))); }
  body.drawing-quick-toolbar-visible .professional-drawing-page { padding-right: max(64px, calc(58px + env(safe-area-inset-right))); }
}

/* The quick drawing rail belongs only to the main editor and Professional Drawing. */
body.recognition-open .drawing-quick-tool-rail,
body.bead-mode-active .drawing-quick-tool-rail { display: none !important; }

/* v2.8.0 functional-test: responsive quick preview, scroll-safe fullscreen, compact floating tools, global settings */
.quick-preview-range { grid-template-columns: auto minmax(0, 1fr) auto; }
.quick-preview-number { display: inline-flex; align-items: center; gap: 4px; color: #475467; font-size: 12px; font-weight: 700; white-space: nowrap; }
.quick-preview-number input { width: 66px; min-height: 34px; padding: 5px 7px; border: 1px solid var(--line-strong); border-radius: 8px; background: #fff; color: #111827; text-align: center; font-variant-numeric: tabular-nums; }
.quick-preview-number input::-webkit-inner-spin-button { opacity: 1; }

/* The viewport stays locked, while each functional page owns its vertical scrolling. */
body.app-immersive-mode > .app-shell,
body.app-fullscreen-active > .app-shell {
  overflow-y: auto;
  overscroll-behavior-y: contain;
  scrollbar-gutter: stable;
  /* Keep every functional row at its real content height. The filing row must
     follow the work areas instead of taking height from them in a fixed viewport. */
  grid-auto-rows: max-content;
  align-content: start;
}
body.app-immersive-mode .professional-drawing-page,
body.app-immersive-mode .bead-mode-page,
body.app-fullscreen-active .professional-drawing-page,
body.app-fullscreen-active .bead-mode-page {
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior-y: contain;
  scrollbar-gutter: stable;
}
body.app-immersive-mode .professional-drawing-layout,
body.app-immersive-mode .bead-mode-layout,
body.app-fullscreen-active .professional-drawing-layout,
body.app-fullscreen-active .bead-mode-layout {
  height: auto;
  min-height: calc(var(--app-viewport-height, 100dvh) - 92px - env(safe-area-inset-top) - env(safe-area-inset-bottom));
}
body.app-fullscreen-active .professional-drawing-layout,
body.app-fullscreen-active .bead-mode-layout { min-height: calc(100dvh - 92px - env(safe-area-inset-top) - env(safe-area-inset-bottom)); }
body.app-immersive-mode .recognition-dialog,
body.app-fullscreen-active .recognition-dialog { overflow-y: auto; overscroll-behavior-y: contain; scrollbar-gutter: stable; }
body.app-immersive-mode .recognition-dialog.is-grid-calibration-open,
body.app-fullscreen-active .recognition-dialog.is-grid-calibration-open { overflow-y: auto; }

/* Six explicit rows: heading, summaries, similar, bulk, search, scrollable colors. */
.professional-drawing-palette-panel { grid-template-rows: auto auto auto auto auto minmax(0, 1fr); }
.professional-drawing-palette-panel .field.compact { position: relative; z-index: 2; }
.professional-drawing-color-list { position: relative; z-index: 1; max-height: 507px; align-self: start; overflow-y: auto; overscroll-behavior-y: contain; -webkit-overflow-scrolling: touch; touch-action: pan-y; }
@media (max-width: 760px) {
  .professional-drawing-palette-panel { grid-template-rows: auto auto auto auto auto minmax(120px, 1fr); max-height: min(72dvh, var(--app-viewport-height, 620px)); }
  .professional-drawing-palette-panel .field.compact { margin-bottom: 6px; }
}

/* v2.8.1 regression fix: keep Professional Drawing as a workbench. The palette never grows the page. */
@media (min-width: 761px) {
  .professional-drawing-palette-panel { min-height: 0; align-self: stretch; }
  .professional-drawing-color-list { min-height: 0; max-height: 507px; overflow-y: auto; overscroll-behavior-y: contain; }
}

/* v2.8.2 layout refinement: narrower Professional Drawing palette on desktop/tablet landscape. */
@media (min-width: 761px) {
  .professional-drawing-palette-panel { padding: 10px; }
  .professional-drawing-color-summary { gap: 7px; padding: 8px 0; }
  .professional-drawing-color-summary > div { grid-template-columns: 30px minmax(0, 1fr); gap: 7px; }
  .professional-drawing-color-summary .swatch { width: 30px; height: 30px; border-radius: 8px; }
  .professional-drawing-color-item { grid-template-columns: 28px minmax(0, 1fr) auto; gap: 7px; padding: 6px 30px 6px 6px; }
  .professional-drawing-color-item .swatch { width: 28px; height: 28px; }
  .professional-drawing-color-item .meta,
  .professional-drawing-color-item .name,
  .professional-drawing-color-summary > div > span:last-child { min-width: 0; }
  .professional-drawing-color-item .name,
  .professional-drawing-color-summary small,
  .professional-drawing-color-summary > div > span:last-child > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}

/* Quick tools are a compact overlay and no longer reserve document width. */
.drawing-quick-tool-rail {
  z-index: 88;
  right: max(8px, env(safe-area-inset-right));
  width: 44px;
  gap: 3px;
  padding: 4px;
  border-radius: 12px;
  pointer-events: auto;
}
.drawing-quick-tool-rail button {
  min-width: 34px;
  min-height: 36px;
  width: 34px;
  height: 36px;
  padding: 2px;
  border-radius: 8px;
  font-size: 1rem;
}
.drawing-quick-tool-rail button span { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.drawing-quick-tool-divider { display: block; width: 28px; height: 1px; margin: 2px auto; background: #e2e8f0; pointer-events: none; }
#drawingQuickHideButton { color: #667085; }
body.drawing-quick-toolbar-visible .app-shell { padding-right: 14px; }
body.drawing-quick-toolbar-visible .professional-drawing-page { padding-right: 14px; }
body.app-immersive-mode.drawing-quick-toolbar-visible > .app-shell { padding-right: max(6px, env(safe-area-inset-right)); }
body.app-immersive-mode.drawing-quick-toolbar-visible .professional-drawing-page,
body.app-fullscreen-active.drawing-quick-toolbar-visible .professional-drawing-page { padding-right: max(10px, env(safe-area-inset-right)); }
@media (max-width: 760px) {
  body.drawing-quick-toolbar-visible .app-shell,
  body.drawing-quick-toolbar-visible .professional-drawing-page { padding-right: 10px; }
  body.app-immersive-mode.drawing-quick-toolbar-visible > .app-shell { padding-right: max(6px, env(safe-area-inset-right)); }
  body.app-immersive-mode.drawing-quick-toolbar-visible .professional-drawing-page,
  body.app-fullscreen-active.drawing-quick-toolbar-visible .professional-drawing-page { padding-right: max(6px, env(safe-area-inset-right)); }
  .drawing-quick-tool-rail { right: max(5px, env(safe-area-inset-right)); width: 40px; padding: 3px; border-radius: 10px; }
  .drawing-quick-tool-rail button { min-width: 32px; min-height: 34px; width: 32px; height: 34px; }
}

/* One global settings surface shared by every functional page. */
.app-settings-modal { position: fixed; inset: 0; z-index: 1400; display: grid; place-items: center; padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left)); background: rgba(15,23,42,.52); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.app-settings-modal[hidden] { display: none !important; }
.app-settings-dialog { width: min(520px, 100%); max-height: min(calc(var(--app-viewport-height, 100dvh) - 24px), 760px); display: grid; grid-template-rows: auto minmax(0,1fr) auto; overflow: hidden; border: 1px solid #cbd5e1; border-radius: 18px; background: #fff; box-shadow: 0 28px 80px rgba(15,23,42,.34); }
.app-settings-dialog > header { display: flex; justify-content: space-between; gap: 14px; padding: 16px 18px; border-bottom: 1px solid var(--line); }
.app-settings-dialog > header small { color: #5b5bd6; font-weight: 800; }
.app-settings-dialog h2 { margin: 2px 0 4px; font-size: 21px; }
.app-settings-dialog header p { margin: 0; color: #667085; font-size: 12px; line-height: 1.45; }
.app-settings-body { min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 12px 18px; }
.app-settings-section { padding: 8px 0 14px; border-bottom: 1px solid #eef2f6; }
.app-settings-section:last-child { border-bottom: 0; }
.app-settings-section h3 { margin: 0 0 6px; color: #344054; font-size: 13px; }
.app-settings-note { display: block; margin-top: 7px; color: #667085; font-size: 12px; line-height: 1.5; }
[data-phone-fullscreen-setting].is-device-disabled { opacity: .52; }
[data-phone-fullscreen-setting].is-device-disabled input,
[data-phone-fullscreen-setting].is-device-disabled select,
[data-phone-fullscreen-setting].is-device-disabled button { cursor: not-allowed; }
.app-settings-dialog > footer { display: flex; justify-content: flex-end; padding: 12px 18px; border-top: 1px solid var(--line); }
body.app-settings-open { overflow: hidden; }
@media (max-width: 620px) {
  .app-settings-modal { align-items: end; padding: 8px max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); }
  .app-settings-dialog { width: 100%; max-height: min(82dvh, var(--app-viewport-height, 82dvh)); border-radius: 16px; }
}
.recognition-grid-workbench-actions { display: flex !important; align-items: center; justify-content: flex-end; gap: 8px; }

/* v3.0.4: keep the main edit toolbar on one row in normal, native and immersive modes. */
.workspace > .workspace-bar {
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  padding-inline: 10px;
  overflow: visible;
}
.workspace > .workspace-bar .tool-group {
  flex-wrap: nowrap;
  gap: 2px;
  min-width: 0;
}
.workspace > .workspace-bar .tool-button { padding-inline: 6px; }
.workspace > .workspace-bar .icon-button { min-width: 34px; }

/* Main page immersive mode keeps the outer viewport locked; the app shell is the scroll owner. */
body.app-immersive-mode:not(.professional-drawing-active):not(.bead-mode-active):not(.recognition-open) > .app-shell {
  min-height: 0;
  height: calc(var(--app-viewport-height, 100dvh) - 52px);
  margin-top: 52px;
}
body.app-fullscreen-active:not(.professional-drawing-active):not(.bead-mode-active):not(.recognition-open) > .app-shell {
  min-height: 0;
  height: calc(var(--app-viewport-height, 100dvh) - 72px);
}
body.app-immersive-mode .recognition-grid-confirmation,
body.app-fullscreen-active .recognition-grid-confirmation { overflow-y: auto; overscroll-behavior-y: contain; }

/* v2.9.0: full-canvas tool visibility and bead guide controls */
.tools-restore-button {
  position: fixed;
  z-index: 260;
  right: max(8px, env(safe-area-inset-right));
  top: max(8px, env(safe-area-inset-top));
  min-height: 36px;
  padding: 7px 11px;
  border: 1px solid rgba(100,116,139,.42);
  border-radius: 10px;
  background: rgba(255,255,255,.9);
  color: #334155;
  box-shadow: 0 6px 20px rgba(15,23,42,.14);
  backdrop-filter: blur(10px);
  cursor: pointer;
  font-weight: 700;
}

.bead-mode-guide-controls {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 5px;
  margin-top: 7px;
}
.bead-mode-guide-controls .button { min-width: 0; padding-inline: 6px; }

body.main-tools-hidden > .topbar,
body.main-tools-hidden #mobileActionBar,
body.main-tools-hidden .app-shell > .settings-panel,
body.main-tools-hidden .app-shell > .inspector-panel,
body.main-tools-hidden .app-shell > .site-filing-footer,
body.main-tools-hidden .workspace > .workspace-bar,
body.main-tools-hidden .workspace > .canvas-meta,
body.main-tools-hidden .workspace > .view-bar,
body.main-tools-hidden #drawingQuickToolRail { display: none !important; }
body.main-tools-hidden .app-shell {
  width: 100%; max-width: none; min-height: 100vh; padding: 0; gap: 0;
  grid-template-columns: minmax(0, 1fr);
}
body.main-tools-hidden .workspace {
  min-height: 100vh; border: 0; border-radius: 0; box-shadow: none;
  grid-template-rows: minmax(0, 1fr);
}
body.main-tools-hidden .canvas-viewport { min-height: 100vh; padding: 8px; }

#professionalDrawingPage.tools-hidden .professional-drawing-header,
#professionalDrawingPage.tools-hidden .professional-drawing-canvas-heading,
#professionalDrawingPage.tools-hidden .professional-drawing-reference-controls,
#professionalDrawingPage.tools-hidden .professional-drawing-status,
#professionalDrawingPage.tools-hidden .professional-drawing-tool-rail,
#professionalDrawingPage.tools-hidden .professional-drawing-palette-panel,
#professionalDrawingPage.tools-hidden .professional-drawing-mobile-toolbar { display: none !important; }
#professionalDrawingPage.tools-hidden { min-height: 100vh; }
#professionalDrawingPage.tools-hidden .professional-drawing-layout {
  display: block; padding: 0; min-height: 100vh;
}
#professionalDrawingPage.tools-hidden .professional-drawing-canvas-panel {
  min-height: 100vh; border: 0; border-radius: 0; box-shadow: none;
}
#professionalDrawingPage.tools-hidden .professional-drawing-viewport { min-height: 100vh; height: 100vh; }

#beadModePage.tools-hidden .bead-mode-header,
#beadModePage.tools-hidden .bead-mode-preview-heading,
#beadModePage.tools-hidden .bead-mode-side-panel,
#beadModePage.tools-hidden .bead-mode-mobile-controls-button,
#beadModePage.tools-hidden .bead-mode-side-expand-handle { display: none !important; }
#beadModePage.tools-hidden { min-height: 100vh; }
#beadModePage.tools-hidden .bead-mode-layout { display: block; min-height: 100vh; padding: 0; }
#beadModePage.tools-hidden .bead-mode-preview-card { min-height: 100vh; border: 0; border-radius: 0; box-shadow: none; }
#beadModePage.tools-hidden .bead-mode-viewport { height: 100vh; min-height: 100vh; }

#recognitionModal.tools-hidden-recognition .recognition-dialog-header,
#recognitionModal.tools-hidden-recognition .recognition-view-toolbar,
#recognitionModal.tools-hidden-recognition .recognition-visual-status,
#recognitionModal.tools-hidden-recognition .recognition-preview-header,
#recognitionModal.tools-hidden-recognition .recognition-tools-panel,
#recognitionModal.tools-hidden-recognition .recognition-tools-show-button,
#recognitionModal.tools-hidden-recognition .recognition-dialog-footer { display: none !important; }
#recognitionModal.tools-hidden-recognition .recognition-dialog { width: 100vw; height: 100vh; max-width: none; max-height: none; border-radius: 0; }
#recognitionModal.tools-hidden-recognition .recognition-main-shell { display: block; height: 100%; }
#recognitionModal.tools-hidden-recognition .recognition-visual-workspace { height: 100%; min-height: 100vh; }
#recognitionModal.tools-hidden-recognition .recognition-preview-grid { height: 100vh; min-height: 0; }
#recognitionModal.tools-hidden-recognition .recognition-preview-panel { min-height: 0; }

#recognitionModal.tools-hidden-grid .recognition-dialog-header,
#recognitionModal.tools-hidden-grid .recognition-grid-workbench-header,
#recognitionModal.tools-hidden-grid .recognition-grid-view-toolbar,
#recognitionModal.tools-hidden-grid .recognition-grid-controls,
#recognitionModal.tools-hidden-grid .recognition-grid-confirmation > footer,
#recognitionModal.tools-hidden-grid .recognition-dialog-footer { display: none !important; }
#recognitionModal.tools-hidden-grid .recognition-dialog { width: 100vw; height: 100vh; max-width: none; max-height: none; border-radius: 0; }
#recognitionModal.tools-hidden-grid .recognition-grid-confirmation { height: 100vh; min-height: 100vh; }
#recognitionModal.tools-hidden-grid .recognition-grid-confirmation-layout { display: block; height: 100vh; }
#recognitionModal.tools-hidden-grid .recognition-grid-viewport { height: 100vh; min-height: 100vh; }

@media (max-width: 760px) {
  .tools-restore-button { top: max(6px, env(safe-area-inset-top)); right: max(6px, env(safe-area-inset-right)); min-height: 34px; padding: 6px 9px; font-size: 12px; }
  .bead-mode-guide-controls { grid-template-columns: repeat(5, minmax(42px, 1fr)); }
}

/* v2.9.4: recognition interference control and tablet-safe selection layout */
.recognition-interference-toggle {
  grid-column: 1 / -1;
}
.recognition-interference-toggle[aria-pressed="true"] {
  border-color: #7c3aed;
  background: #f3e8ff;
  color: #6b21a8;
}
.recognition-interference-note {
  grid-column: 1 / -1;
  display: block;
  min-width: 0;
  color: #667085;
  font-size: 11px;
  line-height: 1.45;
}
.recognition-tools-panel .recognition-selection-control-row {
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
  gap: 6px;
}
.recognition-tools-panel .recognition-selection-control-label {
  min-width: 0;
}
.recognition-tools-panel .recognition-selection-segment {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
}
.recognition-tools-panel .recognition-selection-segment button {
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  padding-inline: 6px;
  overflow: visible;
  text-overflow: clip;
  white-space: nowrap;
}



/* v2.9.12 startup fullscreen recommendation */
.app-confirm-preference { display: flex; align-items: center; gap: 9px; margin: -2px 20px 16px; color: #475569; font-weight: 650; }
.app-confirm-preference[hidden] { display: none !important; }
.app-confirm-preference input { width: 17px; height: 17px; }
.app-settings-section .button + .button { margin-top: 8px; }
@media (max-width: 620px) { .user-guide-header { align-items: stretch; flex-direction: column; } .user-guide-jump-end { align-self: flex-end; } }

/* v2.9.13: homepage bead inventory counter */
.inventory-panel-body { display: grid; gap: 12px; }
.inventory-summary-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 0; }
.inventory-summary-cards strong { font-size: 18px; }
.inventory-project-status {
  margin: 0;
  padding: 9px 10px;
  border-radius: 9px;
  background: var(--panel-soft);
  color: #4d5968;
  font-size: 11px;
  line-height: 1.45;
}
.inventory-action-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.inventory-action-grid .button { min-width: 0; font-size: 11px; }
.inventory-subsection { display: grid; gap: 8px; padding-top: 10px; border-top: 1px solid var(--line); }
.inventory-subheading { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.inventory-subheading strong { font-size: 12px; }
.inventory-subheading span { color: var(--muted); font-size: 9px; text-align: right; }
.inventory-selection-actions { display: flex; align-items: center; gap: 12px; min-height: 26px; }
.inventory-batch-row { display: grid; grid-template-columns: minmax(0, .9fr) minmax(70px, .6fr); gap: 7px; }
.inventory-batch-row .button { grid-column: 1 / -1; min-height: 36px; }
.inventory-batch-row select,
.inventory-batch-row input { min-width: 0; }
.inventory-color-list { max-height: 360px; overflow: auto; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.inventory-color-row {
  display: grid;
  grid-template-columns: 18px 22px minmax(0, 1fr) 76px;
  align-items: center;
  gap: 7px;
  min-height: 48px;
  padding: 6px 7px;
  border-bottom: 1px solid #edf0f3;
}
.inventory-color-row:last-child { border-bottom: 0; }
.inventory-color-row.is-shortage { background: #fff8f0; }
.inventory-color-row > input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--primary); }
.inventory-color-row .swatch { width: 21px; height: 21px; }
.inventory-color-info { min-width: 0; }
.inventory-color-info strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.inventory-color-info small { display: block; color: var(--muted); font-size: 9px; }
.inventory-color-quantity { width: 100%; min-width: 0; min-height: 32px; padding: 5px 6px; text-align: right; }
.inventory-shortage-list { max-height: 220px; overflow: auto; }
.inventory-shortage-row {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr) auto;
  align-items: center;
  gap: 7px;
  padding: 7px 2px;
  border-bottom: 1px solid #edf0f3;
}
.inventory-shortage-row:last-child { border-bottom: 0; }
.inventory-shortage-row .swatch { width: 21px; height: 21px; }
.inventory-shortage-row strong { display: block; font-size: 11px; }
.inventory-shortage-row small { color: var(--muted); font-size: 9px; }
.inventory-shortage-row b { color: #b54708; font-size: 11px; white-space: nowrap; }
.inventory-ok { margin: 0; color: #176b50; font-size: 11px; font-weight: 700; }
.inventory-history-list { max-height: 230px; overflow: auto; }
.inventory-history-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 2px;
  border-bottom: 1px solid #edf0f3;
}
.inventory-history-row:last-child { border-bottom: 0; }
.inventory-history-row > div { min-width: 0; }
.inventory-history-row strong { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; }
.inventory-history-row small { display: block; color: var(--muted); font-size: 9px; }
.inventory-history-undo { flex: 0 0 auto; font-size: 10px; }
@media (max-width: 620px) {
  .inventory-action-grid { grid-template-columns: 1fr; }
  .inventory-color-row { grid-template-columns: 18px 22px minmax(0, 1fr) 68px; }
}

/* v2.9.14: passive native-fullscreen recovery hint */
.fullscreen-click-restore-hint {
  position: fixed;
  z-index: 1540;
  left: 50%;
  bottom: max(54px, calc(env(safe-area-inset-bottom) + 28px));
  transform: translateX(-50%);
  max-width: calc(100vw - 32px);
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .82);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  box-shadow: 0 8px 24px rgba(15, 23, 42, .18);
  pointer-events: none;
}
.fullscreen-click-restore-hint[hidden] { display: none !important; }

/* v2.9.15 grid-calibration UI: compact controls, explicit detection, free viewport pan. */
.recognition-grid-workspace {
  position: relative;
  width: 1px;
  height: 1px;
  min-width: 1px;
  min-height: 1px;
}
.recognition-grid-surface {
  position: absolute;
  left: 0;
  top: 0;
  margin: 0;
}
.recognition-grid-controls {
  gap: 7px;
  padding: 8px;
}
.recognition-grid-enhanced-button {
  background: #2563eb;
  border-color: #2563eb;
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, .2);
}
.recognition-grid-enhanced-button:hover:not(:disabled) {
  background: #1d4ed8;
  border-color: #1d4ed8;
}
.recognition-grid-progress {
  display: grid;
  gap: 4px;
  padding: 2px 1px 1px;
  color: #475467;
  font-size: 11px;
  line-height: 1.2;
}
.recognition-grid-progress[hidden] { display: none !important; }
.recognition-grid-progress-track {
  position: relative;
  height: 4px;
  overflow: hidden;
  border-radius: 999px;
  background: #e2e8f0;
}
.recognition-grid-progress-track i {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 34%;
  border-radius: inherit;
  background: #2563eb;
  animation: recognition-grid-progress-slide 1s ease-in-out infinite;
}
@keyframes recognition-grid-progress-slide {
  0% { left: -34%; }
  50% { left: 50%; }
  100% { left: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .recognition-grid-progress-track i { animation-duration: 2s; }
}
.recognition-grid-cell-size {
  gap: 6px;
  padding: 8px;
}
.recognition-grid-cell-size-buttons {
  grid-template-columns: 42px minmax(70px, 1fr) 42px;
  gap: 5px;
}
.recognition-grid-cell-size-buttons .button { min-width: 0; padding-left: 6px; padding-right: 6px; }
.recognition-grid-controls > .range-field { margin: 0; }
body.app-immersive-mode .recognition-dialog.is-grid-calibration-open,
body.app-fullscreen-active .recognition-dialog.is-grid-calibration-open {
  overflow: hidden;
}

/* v2.9.16 grid coverage selection + split render layers. */
#recognitionGridBaseCanvas,
#recognitionGridOverlayCanvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}
#recognitionGridBaseCanvas {
  z-index: 0;
  background: #fff;
  pointer-events: none;
}
#recognitionGridOverlayCanvas {
  z-index: 1;
  background: transparent;
  cursor: inherit;
}

.recognition-grid-coverage-control {
  display: grid;
  gap: 5px;
  padding: 7px;
  border: 1px solid #fde68a;
  border-radius: 9px;
  background: #fffbeb;
}
.recognition-grid-coverage-status {
  color: #92400e;
  font-size: 11px;
  line-height: 1.35;
}
.recognition-grid-coverage-status[data-ready="true"] { color: #166534; }

.recognition-grid-coverage-selection {
  position: absolute;
  z-index: 2;
  border: 2px solid #2563eb;
  background: rgba(37, 99, 235, .045);
  box-shadow: 0 0 0 1px rgba(255,255,255,.7) inset;
  pointer-events: none;
  touch-action: none;
  user-select: none;
}
.recognition-grid-coverage-selection[hidden] { display: none !important; }
.recognition-grid-coverage-selection.is-editable { pointer-events: auto; cursor: move; }
.recognition-grid-coverage-handle {
  position: absolute;
  z-index: 3;
  width: 14px;
  height: 14px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #2563eb;
  box-shadow: 0 1px 5px rgba(15,23,42,.28);
  touch-action: none;
  pointer-events: none;
}
.recognition-grid-coverage-selection.is-editable .recognition-grid-coverage-handle { pointer-events: auto; }
.recognition-grid-coverage-selection:not(.is-editable) .recognition-grid-coverage-handle { display: none; }
.recognition-grid-coverage-handle.is-nw { left: 0; top: 0; translate: -50% -50%; cursor: nwse-resize; }
.recognition-grid-coverage-handle.is-n { left: 50%; top: 0; translate: -50% -50%; cursor: ns-resize; }
.recognition-grid-coverage-handle.is-ne { right: 0; top: 0; translate: 50% -50%; cursor: nesw-resize; }
.recognition-grid-coverage-handle.is-e { right: 0; top: 50%; translate: 50% -50%; cursor: ew-resize; }
.recognition-grid-coverage-handle.is-se { right: 0; bottom: 0; translate: 50% 50%; cursor: nwse-resize; }
.recognition-grid-coverage-handle.is-s { left: 50%; bottom: 0; translate: -50% 50%; cursor: ns-resize; }
.recognition-grid-coverage-handle.is-sw { left: 0; bottom: 0; translate: -50% 50%; cursor: nesw-resize; }
.recognition-grid-coverage-handle.is-w { left: 0; top: 50%; translate: -50% -50%; cursor: ew-resize; }

/* v2.9.18: movable blue crop frame and stable inventory batch mode */
.crop-tool-button { font-size: 17px; }
.crop-tool-button[aria-pressed="true"],
#drawingQuickCropButton[aria-pressed="true"] { color: var(--primary-dark); background: var(--primary-soft); border-color: #cfcfff; }
.canvas-viewport.crop-active { overflow: hidden; touch-action: none; isolation: isolate; z-index: 0; }
.main-crop-overlay {
  position: absolute;
  inset: 0;
  z-index: 4;
  cursor: default;
  background: rgba(15, 23, 42, .12);
  touch-action: none;
  user-select: none;
}
.main-crop-overlay[hidden] { display: none !important; }
.main-crop-selection {
  position: absolute;
  z-index: 1;
  border: 2px solid #2563eb;
  background: rgba(37, 99, 235, .06);
  box-shadow: 0 0 0 9999px rgba(15, 23, 42, .24);
  pointer-events: auto;
  cursor: move;
  touch-action: none;
}
.main-crop-selection[hidden] { display: none !important; }
.main-crop-handle {
  position: absolute;
  z-index: 2;
  width: 14px;
  height: 14px;
  border: 2px solid #ffffff;
  border-radius: 50%;
  background: #2563eb;
  box-shadow: 0 1px 5px rgba(15,23,42,.28);
  touch-action: none;
}
.main-crop-handle.is-nw { left: 0; top: 0; translate: -50% -50%; cursor: nwse-resize; }
.main-crop-handle.is-n { left: 50%; top: 0; translate: -50% -50%; cursor: ns-resize; }
.main-crop-handle.is-ne { right: 0; top: 0; translate: 50% -50%; cursor: nesw-resize; }
.main-crop-handle.is-e { right: 0; top: 50%; translate: 50% -50%; cursor: ew-resize; }
.main-crop-handle.is-se { right: 0; bottom: 0; translate: 50% 50%; cursor: nwse-resize; }
.main-crop-handle.is-s { left: 50%; bottom: 0; translate: -50% 50%; cursor: ns-resize; }
.main-crop-handle.is-sw { left: 0; bottom: 0; translate: -50% 50%; cursor: nesw-resize; }
.main-crop-handle.is-w { left: 0; top: 50%; translate: -50% -50%; cursor: ew-resize; }
.main-crop-controls {
  position: fixed;
  left: 50%;
  bottom: max(14px, calc(env(safe-area-inset-bottom) + 8px));
  translate: -50% 0;
  z-index: 180;
  width: min(680px, calc(100vw - 24px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 12px;
  background: rgba(255,255,255,.96);
  box-shadow: 0 14px 34px rgba(15,23,42,.22);
  cursor: default;
}
.main-crop-controls[hidden] { display: none !important; }
.main-crop-controls > div:first-child { min-width: 0; display: grid; gap: 2px; }
.main-crop-controls span { color: #667085; font-size: 11px; line-height: 1.4; }
.main-crop-actions { flex: 0 0 auto; display: flex; gap: 7px; }

.inventory-batch-row { grid-template-columns: minmax(0, 1fr) minmax(70px, .6fr); }
.inventory-batch-mode {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  min-width: 0;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 9px;
  background: var(--panel-soft);
}
.inventory-batch-mode button {
  min-width: 0;
  min-height: 31px;
  padding: 5px 7px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: #4d5968;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
}
.inventory-batch-mode button[aria-pressed="true"] {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 1px 4px rgba(28,36,48,.12);
}
@media (max-width: 900px) {
  .main-crop-controls { bottom: max(82px, calc(env(safe-area-inset-bottom) + 72px)); }
}
@media (max-width: 620px) {
  .main-crop-controls { align-items: stretch; flex-direction: column; }
  .main-crop-actions { display: grid; grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .workspace > .workspace-bar { gap: 3px; padding-inline: 4px; }
  .workspace > .workspace-bar .tool-group { gap: 1px; }
  .workspace > .workspace-bar .tool-button { min-width: 30px; padding-inline: 3px; }
  .workspace > .workspace-bar .icon-button { min-width: 30px; }
}

@media (max-width: 699px) {
  .recognition-result-header-actions { gap: 5px; }
  .recognition-result-header-actions > span { display: none; }
  .recognition-result-codes-button { min-height: 34px; padding-inline: 8px; }
}

/* v2.9.33 professional drawing direct-canvas reference + comparison/grid controls */
.noise-clean-action { position: relative; display: inline-grid; gap: 6px; }
.noise-clean-complete-notice { position: absolute; z-index: 12; top: calc(100% + 5px); left: 50%; translate: -50% 0; min-width: 132px; padding: 7px 10px; border: 1px solid #a8dcc5; border-radius: 9px; background: rgba(239,250,245,.98); color: #166534; font-size: 12px; font-weight: 800; text-align: center; box-shadow: 0 6px 18px rgba(15,23,42,.12); white-space: nowrap; }
.noise-clean-complete-notice[hidden] { display: none !important; }
.professional-drawing-view-layout { min-height: 0; display: grid; grid-template-columns: minmax(0,1fr); overflow: hidden; background: #f8fafc; }
.professional-drawing-view-layout.is-horizontal-compare { grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 1px; background: #cbd5e1; }
.professional-drawing-compare-panel { min-width: 0; min-height: 0; display: grid; grid-template-rows: minmax(0,1fr); background: #f8fafc; overflow: hidden; }
.professional-drawing-compare-panel[hidden] { display: none !important; }
.professional-drawing-view-layout.is-horizontal-compare .professional-drawing-compare-panel { grid-template-rows: auto minmax(0,1fr); }
.professional-drawing-compare-panel > header { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 36px; padding: 7px 10px; border-bottom: 1px solid #d8deea; background: #eef2f7; color: #344054; font-size: 12px; }
.professional-drawing-compare-panel > header span { color: #667085; font-size: 10px; }
.professional-drawing-compare-viewport { position: relative; min-height: 0; overflow: hidden; touch-action: none; background: #f8fafc; }
.professional-drawing-compare-stage { position: absolute; left: 0; top: 0; width: 1px; height: 1px; transform-origin: 0 0; will-change: transform; }
.professional-drawing-current-panel .professional-drawing-viewport { height: 100%; }
.professional-drawing-view-layout:not(.is-horizontal-compare) .professional-drawing-current-panel { grid-template-rows: minmax(0,1fr); }
@media (max-width: 760px) {
  .professional-drawing-view-layout.is-horizontal-compare { grid-template-columns: 1fr; grid-template-rows: minmax(220px,1fr) minmax(220px,1fr); }
}

.professional-drawing-compare-panel > header[hidden] { display: none !important; }

/* v2.9.35: bead-mode show-all shortcut + fullscreen-safe main select menus. */
.bead-mode-preview-show-all { min-width: max-content; }

.fullscreen-select-menu {
  position: fixed;
  z-index: 3200;
  display: grid;
  gap: 2px;
  padding: 6px;
  overflow-x: hidden;
  overflow-y: auto;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 16px 44px rgba(28, 36, 48, .22);
  overscroll-behavior: contain;
}
.fullscreen-select-option {
  width: 100%;
  min-height: 40px;
  padding: 8px 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  white-space: normal;
}
.fullscreen-select-option:hover,
.fullscreen-select-option:focus-visible { background: var(--primary-soft); color: var(--primary-dark); }
.fullscreen-select-option.selected { background: var(--primary-soft); color: var(--primary-dark); font-weight: 800; }
.fullscreen-select-option:disabled { opacity: .48; cursor: not-allowed; }

/* v2.9.43 experimental matching model install + tuning panel */
.experimental-model-section[hidden] { display: none !important; }
.experimental-model-panel-heading { cursor: pointer; }
.experimental-model-title { align-items: flex-start; }
.experimental-model-title > div { min-width: 0; display: grid; gap: 3px; }
.experimental-model-title small { color: #667085; font-size: 11px; font-weight: 650; line-height: 1.35; overflow-wrap: anywhere; }
.experimental-model-panel-body { display: grid; gap: 10px; }
.experimental-model-notice { padding: 9px 10px; border: 1px solid #d8deea; border-radius: 9px; background: #f8fafc; color: #667085; font-size: 12px; line-height: 1.5; }
.experimental-model-parameter-list { display: grid; gap: 10px; }
.experimental-model-parameter-row { display: grid; gap: 6px; padding: 9px 10px; border: 1px solid #e3e8ef; border-radius: 10px; background: #fff; }
.experimental-model-parameter-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.experimental-model-parameter-heading strong { color: #344054; font-size: 12px; }
.experimental-model-parameter-heading small { color: #667085; font-size: 10px; text-align: right; }
.experimental-model-parameter-control { display: grid; grid-template-columns: minmax(0,1fr) 76px; gap: 8px; align-items: center; }
.experimental-model-parameter-control input[type="range"] { width: 100%; min-width: 0; }
.experimental-model-parameter-control input[type="number"],
.experimental-model-parameter-control input[data-experimental-number] { width: 100%; min-width: 0; }
.experimental-model-action-grid, .experimental-model-settings-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.experimental-model-delete-action { grid-column: 1 / -1; }
.experimental-parameter-plan-controls { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; }
.experimental-parameter-plan-controls .field { margin: 0; grid-template-columns: auto minmax(0, 1fr); align-items: center; column-gap: 6px; row-gap: 0; }
.experimental-parameter-plan-controls .field > span { white-space: nowrap; }
.custom-model-settings-section > .experimental-model-settings { display: grid; gap: 9px; }
.experimental-model-parameter-status { display: block; color: #667085; font-size: 11px; line-height: 1.45; }
.experimental-model-settings-status { display: grid; gap: 3px; margin-bottom: 9px; padding: 9px 10px; border-radius: 9px; background: #f8fafc; border: 1px solid #e3e8ef; }
.experimental-model-settings-status strong { color: #344054; font-size: 12px; }
.experimental-model-settings-status small { color: #667085; font-size: 11px; line-height: 1.45; }
.model-design-copy-modal {
  position: fixed; inset: 0; z-index: 1500; display: grid; place-items: center;
  padding: 20px; background: rgba(15, 23, 42, .56); backdrop-filter: blur(4px);
}
.model-design-copy-modal[hidden] { display: none !important; }
body.model-design-copy-open { overflow: hidden; }
.model-design-copy-dialog {
  width: min(860px, 100%); max-height: min(86dvh, 900px); display: grid; grid-template-rows: auto minmax(220px, 1fr) auto;
  overflow: hidden; border: 1px solid #cbd5e1; border-radius: 16px; background: #fff; box-shadow: 0 24px 80px rgba(15,23,42,.34);
}
.model-design-copy-dialog > header, .model-design-copy-dialog > footer { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 16px; }
.model-design-copy-dialog > header { border-bottom: 1px solid #e2e8f0; }
.model-design-copy-dialog > header h2 { margin: 0 0 3px; color: #111827; font-size: 18px; }
.model-design-copy-dialog > header p { margin: 0; color: #667085; font-size: 12px; line-height: 1.45; }
.model-design-copy-dialog > textarea { width: 100%; min-height: 0; resize: none; border: 0; border-radius: 0; padding: 14px 16px; color: #111827; background: #f8fafc; font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; outline: none; }
.model-design-copy-dialog > footer { justify-content: flex-end; border-top: 1px solid #e2e8f0; }
.model-text-import-dialog { grid-template-rows: auto minmax(220px, 1fr) auto auto; }
.model-text-import-status { min-height: 34px; padding: 8px 16px; border-top: 1px solid #e2e8f0; color: #667085; background: #fff; font-size: 11px; line-height: 1.45; }
.model-text-import-status[data-tone="error"] { color: #b42318; background: #fff6f5; }
@media (max-width: 620px) {
  .experimental-model-action-grid { grid-template-columns: 1fr; }
  .experimental-parameter-plan-controls { grid-template-columns: 1fr; }
  .experimental-model-settings-actions { grid-template-columns: 1fr; }
  .experimental-model-delete-action { grid-column: auto; }
  .model-design-copy-modal { padding: 8px; }
  .model-design-copy-dialog { max-height: 92dvh; }
  .model-design-copy-dialog > footer .button { flex: 1; }
}

/* v2.9.46 experimental context model parameter groups */
.experimental-model-parameter-group {
  border: 1px solid #dfe5ee;
  border-radius: 10px;
  background: #f8fafc;
  overflow: hidden;
}
.experimental-model-parameter-group > summary {
  list-style: none;
  cursor: pointer;
  padding: 9px 10px;
  user-select: none;
  -webkit-user-select: none;
}
.experimental-model-parameter-group > summary::-webkit-details-marker { display: none; }
.experimental-model-parameter-group > summary > span { display: grid; gap: 2px; }
.experimental-model-parameter-group > summary strong { color: #344054; font-size: 12px; }
.experimental-model-parameter-group > summary small { color: #667085; font-size: 10px; line-height: 1.4; }
.experimental-model-parameter-group[open] > summary { border-bottom: 1px solid #e3e8ef; }
.experimental-model-parameter-group-body { display: grid; gap: 8px; padding: 8px; }
.experimental-model-parameter-group .experimental-model-parameter-row { margin: 0; }
.experimental-model-parameter-group > summary { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.experimental-model-parameter-group > summary::after { content: '▶'; color: #667085; font-size: 11px; flex: 0 0 auto; }
.experimental-model-parameter-group[open] > summary::after { content: '▼'; }

/* v3.0.5+: Apple-inspired static visual system + local appearance customization. */
:root {
  --app-bg: #eef1f6;
  --app-background-image: none;
  --app-background-position-x: 50%;
  --app-background-position-y: 50%;
  --panel-opacity: .88;
  --workspace-home-opacity: .88;
  --workspace-recognition-opacity: .88;
  --workspace-professional-opacity: .88;
  --workspace-bead-opacity: .88;
  --workspace-bead-fullscreen-opacity: .88;
  --panel-bg: rgb(255 255 255 / var(--panel-opacity));
  --toolbar-bg: rgb(255 255 255 / var(--panel-opacity));
  --control-bg: rgba(255,255,255,.94);
  --control-soft-bg: rgba(246,247,250,.90);
  --dialog-bg: rgba(255,255,255,.97);
  --panel-border: rgba(90,103,127,.18);
  --line: rgba(89,101,123,.16);
  --line-strong: rgba(82,95,118,.27);
  --text: #1d1d1f;
  --secondary-text: #6e6e73;
  --secondary-text-shadow: none;
  --neutral-foreground: #475467;
  --neutral-foreground-shadow: none;
  --muted: var(--secondary-text);
  --primary: #5b5bd6;
  --primary-dark: #4747bd;
  --primary-soft: rgba(91,91,214,.10);
  --shadow: 0 10px 30px rgba(15,23,42,.08), 0 1px 2px rgba(15,23,42,.04);
  --radius-panel: 20px;
  --radius-control: 11px;
  --radius: var(--radius-panel);
  --panel: var(--panel-bg);
  --panel-soft: var(--control-soft-bg);
}

html {
  min-height: 100%;
  background-color: var(--app-bg);
  background-image: linear-gradient(180deg, #f6f8fb 0%, #edf0f5 100%);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
/* v3.0.15: native fullscreen has exactly one custom-background owner.
   The root paints the image while the fullscreen backdrop remains a cheap fallback. */
html:fullscreen {
  background-color: var(--app-bg);
  background-image: var(--app-background-image), linear-gradient(180deg, #f6f8fb 0%, #edf0f5 100%);
  background-position: var(--app-background-position-x) var(--app-background-position-y), center;
  background-repeat: no-repeat, no-repeat;
  background-size: cover, cover;
}
html:fullscreen::backdrop {
  background-color: var(--app-bg);
  background-image: linear-gradient(180deg, #f6f8fb 0%, #edf0f5 100%);
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
body {
  position: relative;
  z-index: 0;
  isolation: isolate;
  background: transparent;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-color: var(--app-bg);
  background-image: var(--app-background-image), linear-gradient(180deg, #f6f8fb 0%, #edf0f5 100%);
  background-position: var(--app-background-position-x) var(--app-background-position-y), center;
  background-repeat: no-repeat, no-repeat;
  background-size: cover, cover;
}
html:fullscreen body::before { display: none; }

/* v3.0.15: nested fullscreen overlays keep their visual hierarchy without
   stacking multiple full-viewport backdrop-filter passes in native fullscreen. */
html:fullscreen .native-fullscreen-blur-suspended {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

.topbar {
  background: var(--toolbar-bg);
  border-bottom-color: var(--panel-border);
  box-shadow: 0 8px 24px rgba(15,23,42,.045);
  backdrop-filter: blur(18px) saturate(135%);
  -webkit-backdrop-filter: blur(18px) saturate(135%);
}
.brand-block h1 { color: #1d1d1f; letter-spacing: -.015em; }
.app-version { color: var(--muted); }
.app-version { background: rgba(91,91,214,.08); color: #5151be; }

.panel,
.workspace,
.bead-mode-preview-card,
.bead-mode-control-card,
.professional-drawing-canvas-panel,
.professional-drawing-tool-rail,
.professional-drawing-palette-panel {
  background: var(--panel-bg);
  border-color: var(--panel-border);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow);
}
.panel-section,
.workspace-bar,
.view-bar,
.canvas-meta,
.bead-mode-preview-heading,
.bead-mode-card-heading,
.professional-drawing-canvas-heading,
.professional-drawing-status {
  border-color: var(--line);
}
.section-heading h2,
.canvas-meta strong,
.bead-mode-preview-heading strong,
.bead-mode-card-heading strong { color: #252529; }
.step {
  border-radius: 8px;
  background: rgba(91,91,214,.09);
  color: #5151be;
}

.button,
.tool-button,
.icon-button,
.view-toggle-button,
.guide-controls,
.guide-controls button,
.palette-brand-card {
  transition: none;
}
.button {
  border-color: var(--line-strong);
  border-radius: var(--radius-control);
  background: var(--control-bg);
  box-shadow: 0 1px 2px rgba(15,23,42,.025);
}
.button:hover:not(:disabled) {
  transform: none;
  border-color: rgba(82,95,118,.38);
  background: rgba(255,255,255,.98);
}
.button.primary {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 1px 2px rgba(56,56,160,.14);
}
.button.primary:hover:not(:disabled) { background: var(--primary-dark); border-color: var(--primary-dark); }
.button.secondary { background: var(--control-soft-bg); }
.button.ghost { background: rgba(255,255,255,.38); }

.field input,
.field select,
.inline-select select,
.professional-drawing-reference-controls select,
.professional-drawing-reference-controls input[type="number"],
.quick-preview-number input,
.file-name-input-row,
.view-toggle-button,
.guide-controls {
  border-color: var(--line-strong);
  border-radius: var(--radius-control);
  background: var(--control-bg);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.42);
}
.field > span,
.range-field > span,
.check-row,
.inline-select,
.selected-color { color: #5f6269; }

.drop-zone {
  border-color: rgba(90,103,127,.34);
  border-radius: var(--radius-control);
  background: rgba(255,255,255,.46);
}
.drop-zone.dragging { border-color: var(--primary); background: rgba(91,91,214,.10); }
.palette-brand-card {
  background: var(--control-bg);
  border-color: var(--line-strong);
  border-radius: 13px;
}
.palette-brand-card:hover { transform: none; border-color: rgba(82,95,118,.38); }
.palette-brand-card.selected { border-color: rgba(91,91,214,.52); background: rgba(91,91,214,.07); box-shadow: inset 0 0 0 1px rgba(91,91,214,.10); }
.palette-brand-card::after { border-color: rgba(82,95,118,.42); background: var(--control-bg); }
.palette-brand-card.selected::after { border-color: var(--primary); background: var(--primary); box-shadow: inset 0 0 0 3px #fff; }

.workspace-bar,
.view-bar,
.canvas-meta { background: rgba(255,255,255,.16); }
.tool-button,
.icon-button { border-radius: 10px; }
.tool-button:hover,
.icon-button:hover { background: rgba(255,255,255,.56); }
.tool-button.active,
.view-toggle-button[aria-pressed="true"] {
  color: var(--primary-dark);
  background: rgba(91,91,214,.10);
  border-color: rgba(91,91,214,.24);
}

.professional-drawing-page,
.bead-mode-page { background: transparent; color: #1d1d1f; }
.professional-drawing-header > div:first-child > span,
.bead-mode-header span,
.professional-drawing-canvas-heading output,
.professional-drawing-status { color: var(--muted); }
.professional-drawing-reference-controls,
.bead-mode-side-toolbar {
  background: rgba(255,255,255,.38);
  border-color: var(--line);
}
.professional-drawing-tool-rail button:hover:not(:disabled),
.professional-drawing-mobile-toolbar button:hover:not(:disabled) { background: rgba(91,91,214,.08); }
.professional-drawing-color-item,
.bead-mode-color-item { background: var(--control-bg); border-color: var(--line); }
.professional-drawing-color-item:hover,
.bead-mode-color-item:hover { background: rgba(91,91,214,.06); border-color: rgba(91,91,214,.28); }
.professional-drawing-mobile-toolbar {
  background: var(--dialog-bg);
  border-top-color: var(--line);
  box-shadow: 0 -8px 24px rgba(15,23,42,.07);
}

/* Critical dialogs keep a high-opacity surface regardless of the panel-opacity preference. */
.app-settings-dialog,
.app-confirm-dialog,
.feature-guidance-dialog,
.user-guide-dialog,
.bead-gate-dialog,
.bead-calibration-dialog,
.project-transfer-dialog,
.file-export-dialog,
.professional-drawing-bulk-dialog,
.recognition-dialog {
  background: var(--dialog-bg);
  border-color: rgba(90,103,127,.20);
  box-shadow: 0 24px 70px rgba(15,23,42,.24), 0 1px 2px rgba(15,23,42,.06);
}
.recognition-dialog { background: var(--recognition-dialog-bg); }
.app-settings-dialog,
.app-confirm-dialog,
.feature-guidance-dialog,
.user-guide-dialog,
.bead-gate-dialog,
.project-transfer-dialog,
.file-export-dialog,
.professional-drawing-bulk-dialog { border-radius: 22px; }
.app-settings-dialog > header,
.app-settings-dialog > footer,
.app-settings-section { border-color: var(--line); }
.app-settings-dialog > header small { color: #5151be; }
.app-settings-dialog h2 { letter-spacing: -.02em; }

.app-appearance-settings { display: grid; gap: 10px; }
.app-appearance-background-status { min-width: 0; display: grid; gap: 3px; }
.app-appearance-background-status[hidden] { display: none !important; }
.app-appearance-background-status span { color: #5f6269; font-size: 12px; font-weight: 650; }
.app-appearance-background-status strong { overflow: hidden; color: #252529; font-size: 13px; text-overflow: ellipsis; white-space: nowrap; }
.app-appearance-background-actions { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); align-items: stretch; gap: 8px; }
.app-appearance-background-actions .button {
  -webkit-appearance: none;
  appearance: none;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-width: 0;
  min-height: 38px;
  height: 38px;
  max-height: 38px;
  margin: 0;
  padding: 0 8px;
  border-radius: var(--radius-control);
  line-height: 1;
  vertical-align: middle;
  white-space: nowrap;
  font-size: clamp(11px, 2.7vw, 13px);
  transform: none;
}
.app-appearance-background-actions .button:hover:not(:disabled),
.app-appearance-background-actions .button:active { transform: none; }
.app-appearance-options { display: grid; gap: 8px; }
.app-appearance-options[hidden] { display: none !important; }
.app-appearance-group { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-control); background: rgba(255,255,255,.22); }
.app-appearance-group-toggle { width: 100%; min-height: 40px; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 10px; border: 0; background: rgba(246,247,250,.72); color: #344054; font: inherit; font-size: 12px; font-weight: 780; text-align: left; cursor: pointer; }
.app-appearance-group-toggle:focus-visible { outline: 2px solid #2563eb; outline-offset: -2px; }
.app-appearance-group-chevron { flex: 0 0 auto; color: #667085; font-size: 10px; transition: none; }
.app-appearance-group-toggle[aria-expanded="false"] .app-appearance-group-chevron { transform: rotate(-90deg); }
.app-appearance-group-body { display: grid; gap: 8px; padding: 9px 10px 10px; }
.app-appearance-group-body[hidden] { display: none !important; }
.app-appearance-opacity { display: grid; gap: 7px; margin-top: 2px; }
.app-appearance-opacity > span { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: #5f6269; font-size: 12px; font-weight: 650; }
.app-appearance-opacity output { color: #252529; font-variant-numeric: tabular-nums; }
.app-appearance-opacity input { width: 100%; accent-color: var(--primary); }

@media (max-width: 620px) {
  .panel, .workspace,
  .bead-mode-preview-card, .bead-mode-control-card,
  .professional-drawing-canvas-panel, .professional-drawing-tool-rail, .professional-drawing-palette-panel { border-radius: 16px; }
  .app-settings-dialog { border-radius: 20px 20px 16px 16px; }
}

/* Appearance opacity also applies to floating and mobile functional tool surfaces. */
.drawing-quick-tool-rail,
.mobile-action-bar,
.professional-drawing-mobile-toolbar {
  background: var(--panel-bg);
  border-color: var(--panel-border);
}

/* v3.0.6: translucent main workspace surface. Child images/canvases remain fully opaque. */
.workspace { background: transparent; }
.workspace-bar,
.canvas-meta,
.view-bar { background: var(--panel-bg); }
.canvas-viewport.workspace-surface-translucent {
  background-color: rgb(238 241 245 / var(--workspace-home-opacity));
  background-image:
    linear-gradient(45deg, rgb(226 230 235 / var(--workspace-home-opacity)) 25%, transparent 25%),
    linear-gradient(-45deg, rgb(226 230 235 / var(--workspace-home-opacity)) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgb(226 230 235 / var(--workspace-home-opacity)) 75%),
    linear-gradient(-45deg, transparent 75%, rgb(226 230 235 / var(--workspace-home-opacity)) 75%);
}


/* v3.0.7: optional high-contrast secondary text without changing disabled/status colors. */
.app-obvious-text-controls {
  display: grid;
  gap: 8px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-control);
  background: rgba(255,255,255,.34);
}
.app-obvious-text-controls[hidden] { display: none !important; }
.app-obvious-text-controls .field { margin: 0; }
.app-obvious-text-custom-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: #5f6269; font-size: 12px; font-weight: 650; }
.app-obvious-text-custom-row[hidden] { display: none !important; }
.app-obvious-text-custom-row input[type="color"] { width: 54px; height: 34px; padding: 2px; border: 1px solid var(--line-strong); border-radius: 9px; background: var(--control-bg); }
.app-obvious-text-preview { min-height: 36px; display: flex; align-items: center; padding: 8px 10px; border: 1px solid var(--line); border-radius: 9px; background: rgb(255 255 255 / var(--panel-opacity)); font-size: 12px; font-weight: 700; }

body.obvious-text-active .muted,
body.obvious-text-active .fine-print,
body.obvious-text-active .app-version,
body.obvious-text-active .current-source-status > span,
body.obvious-text-active .current-source-status strong,
body.obvious-text-active .current-source-status small,
body.obvious-text-active .canvas-meta #canvasDimensions,
body.obvious-text-active .selected-color,
body.obvious-text-active .zoom-control,
body.obvious-text-active .inline-select,
body.obvious-text-active .summary-cards span,
body.obvious-text-active .stat-row small,
body.obvious-text-active .palette-brand-card small,
body.obvious-text-active .field > span,
body.obvious-text-active .range-field > span,
body.obvious-text-active .check-row,
body.obvious-text-active .bead-mode-header span,
body.obvious-text-active .bead-mode-preview-heading span,
body.obvious-text-active .bead-mode-card-heading span,
body.obvious-text-active .professional-drawing-header > div:first-child > span,
body.obvious-text-active .professional-drawing-reference-controls label,
body.obvious-text-active .professional-drawing-opacity,
body.obvious-text-active .professional-drawing-color-summary small,
body.obvious-text-active .professional-drawing-color-summary > div > span:last-child > span,
body.obvious-text-active .professional-drawing-color-item .name,
body.obvious-text-active .professional-drawing-color-item .delta-e,
body.obvious-text-active .professional-drawing-canvas-heading output,
body.obvious-text-active .professional-drawing-status,
body.obvious-text-active .professional-drawing-compare-panel > header span,
body.obvious-text-active .quick-preview-metrics span,
body.obvious-text-active .quick-preview-controls small,
body.obvious-text-active .quick-preview-stage small,
body.obvious-text-active .recognition-grid-controls small,
body.obvious-text-active .recognition-tools-panel-header span,
body.obvious-text-active .main-crop-controls span,
body.obvious-text-active .inventory-subheading span,
body.obvious-text-active .inventory-color-info small,
body.obvious-text-active .inventory-shortage-row small,
body.obvious-text-active .inventory-history-row small,
body.obvious-text-active .experimental-model-title small,
body.obvious-text-active .experimental-model-parameter-heading small,
body.obvious-text-active .experimental-model-parameter-status,
body.obvious-text-active .experimental-model-settings-status small,
body.obvious-text-active .experimental-model-parameter-group > summary small {
  color: var(--secondary-text);
  text-shadow: var(--secondary-text-shadow);
}

/* Critical high-opacity dialogs keep their established secondary-text palette. */
body.obvious-text-active .app-settings-dialog,
body.obvious-text-active .app-confirm-dialog,
body.obvious-text-active .feature-guidance-dialog,
body.obvious-text-active .user-guide-dialog,
body.obvious-text-active .bead-gate-dialog,
body.obvious-text-active .bead-calibration-dialog,
body.obvious-text-active .project-transfer-dialog,
body.obvious-text-active .file-export-dialog,
body.obvious-text-active .professional-drawing-bulk-dialog,
body.obvious-text-active:not(.recognition-workspace-translucent) .recognition-dialog {
  --secondary-text: #6e6e73;
  --secondary-text-shadow: none;
}


/* v3.0.8: centralized workspace translucency and contrast completion. */
.workspace-appearance-list { display: grid; gap: 7px; }
.workspace-appearance-item { display: grid; gap: 6px; padding: 7px 9px; border: 1px solid var(--line); border-radius: var(--radius-control); background: rgba(255,255,255,.24); }
.workspace-appearance-item > .top-settings-toggle { margin: 0; }
.workspace-translucent-all-toggle { margin-bottom: 2px; border-bottom: 1px solid var(--line); padding-bottom: 7px; font-weight: 800; }
.workspace-opacity-controls { display: grid; gap: 5px; padding: 6px 8px 2px; border-top: 1px solid var(--line); }
.workspace-opacity-controls[hidden] { display: none !important; }
.workspace-opacity-controls .app-appearance-opacity { margin: 0; }
.workspace-opacity-controls .compact-toggle { min-height: 28px; font-size: 11px; }
.workspace-opacity-controls .compact-toggle span { font-size: 11px; }

/* Each work surface has its own alpha. Child image/canvas pixels are not assigned opacity. */
body.professional-workspace-translucent .professional-drawing-canvas-panel,
body.professional-workspace-translucent .professional-drawing-view-layout,
body.professional-workspace-translucent .professional-drawing-compare-panel {
  background: transparent;
}
body.professional-workspace-translucent .professional-drawing-canvas-heading,
body.professional-workspace-translucent .professional-drawing-reference-controls,
body.professional-workspace-translucent .professional-drawing-status,
body.professional-workspace-translucent .professional-drawing-compare-panel > header {
  background: var(--panel-bg);
}
body.professional-workspace-translucent .professional-drawing-compare-viewport,
body.professional-workspace-translucent .professional-drawing-viewport {
  /* The viewport is the work surface; the actual image/pattern underlay is owned by its stage. */
  background-color: rgb(248 250 252 / var(--workspace-professional-opacity));
}
body.professional-workspace-translucent .professional-drawing-view-layout.is-horizontal-compare {
  background-color: rgb(203 213 225 / var(--workspace-professional-opacity));
}
body.bead-workspace-translucent .bead-mode-preview-card {
  background: transparent;
}
body.bead-workspace-translucent .bead-mode-preview-heading {
  background: var(--panel-bg);
}
body.bead-workspace-translucent .bead-mode-viewport {
  background-color: rgb(255 255 255 / var(--workspace-bead-opacity));
}
body.bead-fullscreen-workspace-translucent .bead-mode-page.is-fullscreen {
  /* One fullscreen surface owns the translucent wash so no lighter edge can leak through. */
  background: rgb(255 255 255 / var(--workspace-bead-fullscreen-opacity));
}
body.bead-fullscreen-workspace-translucent .bead-mode-page.is-fullscreen .bead-mode-layout,
body.bead-fullscreen-workspace-translucent .bead-mode-page.is-fullscreen .bead-mode-preview-card,
body.bead-fullscreen-workspace-translucent .bead-mode-page.is-fullscreen .bead-mode-viewport {
  background: transparent;
}
body.bead-fullscreen-workspace-translucent .bead-mode-page.is-fullscreen:fullscreen::backdrop {
  background-color: var(--app-bg);
  background-image: var(--app-background-image), linear-gradient(180deg, #f6f8fb 0%, #edf0f5 100%);
  background-position: var(--app-background-position-x) var(--app-background-position-y), center;
  background-repeat: no-repeat, no-repeat;
  background-size: cover, cover;
}

/* Recognition background ownership: translucent mode changes semantic surfaces, not layout wrappers. */
body.recognition-workspace-translucent .recognition-modal {
  --recognition-backdrop-bg: rgba(15, 23, 42, .18);
  --recognition-dialog-bg: rgb(255 255 255 / var(--workspace-recognition-opacity));
  --recognition-surface-bg: rgba(255,255,255,.12);
  --recognition-subtle-bg: rgba(248,250,252,.12);
  --recognition-toolbar-bg: rgba(248,250,252,.12);
  --recognition-tools-header-bg: rgba(248,250,252,.12);
  --recognition-view-bg: rgba(234,242,255,.16);
  --recognition-divider-bg: rgb(148 163 184 / var(--workspace-recognition-opacity));
  --recognition-canvas-bg: rgb(229 231 235 / var(--workspace-recognition-opacity));
  --recognition-canvas-grid-color: rgb(209 213 219 / var(--workspace-recognition-opacity));
  --recognition-grid-viewport-bg: rgb(23 32 51 / var(--workspace-recognition-opacity));
  --recognition-control-bg: rgba(255,255,255,.72);
  --recognition-grid-controls-bg: rgba(248,250,252,.12);
}
body.recognition-workspace-translucent .recognition-dialog {
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
}
/* Canvas/image layers keep their normal opacity; only the semantic surfaces above change alpha. */

/* Existing obvious-text mode gains safe helper labels used on translucent workspaces. */
body.obvious-text-active .recognition-dialog-header p,
body.obvious-text-active .recognition-brand span,
body.obvious-text-active .recognition-view-description span,
body.obvious-text-active .recognition-preview-panel > header span,
body.obvious-text-active .recognition-source-hint,
body.obvious-text-active .recognition-interference-note,
body.obvious-text-active .recognition-grid-workbench-header span,
body.obvious-text-active .bead-mode-side-toolbar,
body.obvious-text-active .bead-mode-color-item small,
body.obvious-text-active .bead-ruler-pixel-output,
body.obvious-text-active .professional-drawing-bulk-dialog > header small {
  color: var(--secondary-text);
  text-shadow: var(--secondary-text-shadow);
}

/* Local contrast follows the actual surface that text sits on. */
body.obvious-text-active .canvas-viewport.workspace-surface-translucent {
  --secondary-text: var(--workspace-home-obvious-text, var(--secondary-text));
  --secondary-text-shadow: var(--workspace-home-obvious-shadow, var(--secondary-text-shadow));
}
body.obvious-interface-active .canvas-viewport.workspace-surface-translucent {
  --neutral-foreground: var(--workspace-home-obvious-text, var(--neutral-foreground));
  --neutral-foreground-shadow: var(--workspace-home-obvious-shadow, var(--neutral-foreground-shadow));
}
body.obvious-text-active .bead-mode-header,
body.obvious-text-active .professional-drawing-header {
  --secondary-text: var(--background-obvious-text, var(--secondary-text));
  --secondary-text-shadow: var(--background-obvious-shadow, var(--secondary-text-shadow));
}
body.obvious-interface-active .bead-mode-header,
body.obvious-interface-active .professional-drawing-header {
  --neutral-foreground: var(--background-obvious-text, var(--neutral-foreground));
  --neutral-foreground-shadow: var(--background-obvious-shadow, var(--neutral-foreground-shadow));
}
body.obvious-text-active .empty-state p {
  color: var(--secondary-text);
  text-shadow: var(--secondary-text-shadow);
}

/* v3.0.20: stable light surfaces keep their established dark text even when
   obvious-text mode selects a light foreground for the surrounding photo. */
body.obvious-text-active .current-source-status > span {
  color: #5b6475;
  text-shadow: none;
}
body.obvious-text-active .current-source-status strong {
  color: #3730a3;
  text-shadow: none;
}
body.obvious-text-active .current-source-status small {
  color: #687386;
  text-shadow: none;
}
body.obvious-text-active .palette-brand-card strong {
  color: #1d1d1f;
  text-shadow: none;
}
body.obvious-text-active .palette-brand-card small {
  color: #6e6e73;
  text-shadow: none;
}
body.obvious-text-active .mard-special-colors .mard-special-toggle {
  color: #5f6269;
  text-shadow: none;
}
body.obvious-text-active .mard-special-colors strong {
  color: #1d1d1f;
  text-shadow: none;
}
body.obvious-text-active .mard-special-colors small {
  color: #6e6e73;
  text-shadow: none;
}

/* v3.0.17: interface contrast follows the surface that actually carries the text.
   Text on the app background or genuinely translucent tool surfaces may adapt.
   Controls with their own stable light surface keep their established foreground.
   Normal, disabled and selected transparent-tool states remain explicit. */
body.obvious-interface-active .empty-state h2,
body.obvious-interface-active .section-heading h2,
body.obvious-interface-active .canvas-meta strong,
body.obvious-interface-active .step,
body.obvious-interface-active .text-button,
body.obvious-interface-active .bead-mode-header h1,
body.obvious-interface-active .bead-mode-eyebrow,
body.obvious-interface-active .professional-drawing-header h1,
body.obvious-interface-active .professional-drawing-eyebrow,
body.obvious-interface-active .bead-mode-preview-heading strong,
body.obvious-interface-active .bead-mode-card-heading strong,
body.obvious-interface-active .professional-drawing-canvas-heading strong,
body.obvious-interface-active .bead-mode-side-toolbar strong,
body.obvious-interface-active .recognition-dialog-header h2,
body.obvious-interface-active .recognition-section-toggle,
body.obvious-interface-active .recognition-tools-show-button,
body.obvious-interface-active .recognition-mode-button:not([aria-pressed="true"]),
body.obvious-interface-active .recognition-adjust-button:not([aria-pressed="true"]),
body.obvious-interface-active .panel-chevron,
body.obvious-interface-active .recognition-section-chevron,
body.obvious-interface-active .recognition-zoom-button,
body.obvious-interface-active #zoomValue,
body.obvious-interface-active #recognitionZoomValue,
body.obvious-interface-active #recognitionGridZoomValue,
body.obvious-interface-active #professionalDrawingZoomValue,
body.obvious-interface-active #professionalDrawingReferenceOpacityValue,
body.obvious-interface-active #beadModeZoomValue,
body.obvious-interface-active .recognition-selection-control-label,
body.obvious-interface-active .recognition-summary,
body.obvious-interface-active .recognition-view-description strong,
body.obvious-interface-active .recognition-brand strong,
body.obvious-interface-active .recognition-preview-panel > header strong,
body.obvious-interface-active .recognition-tools-panel-header strong,
body.obvious-interface-active .bead-mode-segmented legend,
body.obvious-interface-active .bead-mode-segmented input:not(:checked) + span,
body.obvious-interface-active .bead-mode-zoom-toolbar output,
body.obvious-interface-active .professional-drawing-color-summary strong,
body.obvious-interface-active .bead-mode-section-toggle,
body.obvious-interface-active .tool-button:not(.active):not([aria-pressed="true"]),
body.obvious-interface-active .drawing-quick-tool-rail button:not([aria-pressed="true"]),
body.obvious-interface-active .professional-drawing-tool-rail button:not([aria-pressed="true"]),
body.obvious-interface-active .professional-drawing-mobile-toolbar button:not([aria-pressed="true"]),
body.obvious-interface-active #drawingQuickHideButton,
body.obvious-interface-active .icon-button {
  color: var(--neutral-foreground);
  text-shadow: var(--neutral-foreground-shadow);
}

/* Stable light controls keep their own foreground instead of adapting to the
   webpage background. Their surface already provides the required contrast. */
body.obvious-interface-active .button.secondary,
body.obvious-interface-active .view-toggle-button,
body.obvious-interface-active .guide-controls button,
body.obvious-interface-active .tools-restore-button,
body.obvious-interface-active .bead-fullscreen-mode-button,
body.obvious-interface-active .bead-fullscreen-pin-button,
body.obvious-interface-active .bead-mode-guide-controls .button,
body.obvious-interface-active .bead-mode-color-item .count,
body.obvious-interface-active .professional-drawing-color-item .code,
body.obvious-interface-active .quick-preview-metrics strong,
body.obvious-interface-active .quick-preview-range,
body.obvious-interface-active .quick-preview-number {
  color: #344054;
  text-shadow: none;
}
body.obvious-interface-active .view-toggle-button { color: #4d5968; }
body.obvious-interface-active .guide-controls button { color: #354052; }
body.obvious-interface-active .tools-restore-button,
body.obvious-interface-active .bead-fullscreen-mode-button,
body.obvious-interface-active .bead-fullscreen-pin-button { color: #334155; }
body.obvious-interface-active .bead-mode-color-item .count { color: #5d6678; }
body.obvious-interface-active .professional-drawing-color-item .code { color: #344054; }
body.obvious-interface-active .quick-preview-metrics strong { color: #111827; }
body.obvious-interface-active .quick-preview-range,
body.obvious-interface-active .quick-preview-number { color: #475467; }

/* Disabled controls remain visibly unavailable, but no longer fade below a
   readable foreground level when interface contrast mode is enabled. */
body.obvious-interface-active .tool-button:disabled,
body.obvious-interface-active .drawing-quick-tool-rail button:disabled,
body.obvious-interface-active .professional-drawing-tool-rail button:disabled,
body.obvious-interface-active .professional-drawing-mobile-toolbar button:disabled,
body.obvious-interface-active .bead-mode-section-toggle:disabled,
body.obvious-interface-active #drawingQuickHideButton:disabled,
body.obvious-interface-active .icon-button:disabled,
body.obvious-interface-active .recognition-section-toggle:disabled,
body.obvious-interface-active .recognition-tools-show-button:disabled,
body.obvious-interface-active .recognition-mode-button:disabled:not([aria-pressed="true"]),
body.obvious-interface-active .recognition-adjust-button:disabled:not([aria-pressed="true"]),
body.obvious-interface-active .recognition-zoom-button:disabled {
  opacity: .74;
  color: var(--neutral-foreground);
  text-shadow: var(--neutral-foreground-shadow);
}

/* Selected interactive tools use a solid semantic selection surface instead
   of low-alpha blue-on-blue text, preserving both tool identity and state. */
body.obvious-interface-active .tool-button.active,
body.obvious-interface-active .tool-button[aria-pressed="true"],
body.obvious-interface-active .drawing-quick-tool-rail button[aria-pressed="true"],
body.obvious-interface-active .professional-drawing-tool-rail button[aria-pressed="true"],
body.obvious-interface-active .professional-drawing-mobile-toolbar button[aria-pressed="true"] {
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,.34);
  background: var(--primary);
  border-color: var(--primary-dark);
  box-shadow: inset 0 -3px 0 rgba(31,31,112,.32), 0 0 0 1px rgba(255,255,255,.16);
}

body.obvious-interface-active .experimental-model-parameter-group > summary::after {
  color: var(--neutral-foreground);
  text-shadow: var(--neutral-foreground-shadow);
}

/* High-opacity dialogs keep their established palette. Recognition joins this reset only while it is opaque. */
body.obvious-interface-active .app-settings-dialog,
body.obvious-interface-active .app-confirm-dialog,
body.obvious-interface-active .feature-guidance-dialog,
body.obvious-interface-active .user-guide-dialog,
body.obvious-interface-active .bead-gate-dialog,
body.obvious-interface-active .bead-calibration-dialog,
body.obvious-interface-active .project-transfer-dialog,
body.obvious-interface-active .file-export-dialog,
body.obvious-interface-active .professional-drawing-bulk-dialog,
body.obvious-interface-active:not(.recognition-workspace-translucent) .recognition-dialog {
  --neutral-foreground: #475467;
  --neutral-foreground-shadow: none;
}

/* Recognition can use an opacity independent from the global panels, so auto contrast follows its actual surface. */
body.obvious-text-active.recognition-workspace-translucent .recognition-dialog {
  --secondary-text: var(--workspace-recognition-obvious-text, var(--secondary-text));
  --secondary-text-shadow: var(--workspace-recognition-obvious-shadow, var(--secondary-text-shadow));
}
body.obvious-interface-active.recognition-workspace-translucent .recognition-dialog {
  --neutral-foreground: var(--workspace-recognition-obvious-text, var(--neutral-foreground));
  --neutral-foreground-shadow: var(--workspace-recognition-obvious-shadow, var(--neutral-foreground-shadow));
}


/* v3.0.10: background focal-position editor. It changes only CSS background positioning. */
.app-background-position-modal {
  position: fixed;
  inset: 0;
  z-index: 1500;
  display: grid;
  place-items: center;
  padding: max(12px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
  background: rgba(15,23,42,.60);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}
.app-background-position-modal[hidden] { display: none !important; }
.app-background-position-dialog {
  width: min(620px, 100%);
  max-height: min(calc(var(--app-viewport-height, 100dvh) - 24px), 760px);
  display: grid;
  grid-template-rows: auto minmax(0,1fr) auto;
  overflow: hidden;
  border: 1px solid #cbd5e1;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 28px 80px rgba(15,23,42,.38);
}
.app-background-position-dialog > header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 17px;
  border-bottom: 1px solid var(--line);
}
.app-background-position-dialog > header small { color: #5151be; font-weight: 800; }
.app-background-position-dialog h2 { margin: 2px 0 0; font-size: 20px; letter-spacing: -.02em; }
.app-background-position-body { min-height: 0; overflow-y: auto; padding: 14px 17px; }
.app-background-position-body p { margin: 0 0 10px; color: #667085; font-size: 12px; line-height: 1.5; }
.app-background-position-preview {
  width: 100%;
  aspect-ratio: 16 / 10;
  min-height: 220px;
  border: 1px solid var(--line-strong);
  border-radius: 13px;
  background-color: #eef1f6;
  background-repeat: no-repeat;
  background-size: cover;
  background-position: 50% 50%;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.48);
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden;
}
.app-background-position-preview.is-dragging { cursor: grabbing; }
.app-background-position-preview:focus-visible { outline: 3px solid #2563eb; outline-offset: 2px; }
.app-background-position-value { display: block; margin-top: 8px; color: #5f6269; font-size: 12px; font-variant-numeric: tabular-nums; text-align: center; }
.app-background-position-dialog > footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 17px;
  border-top: 1px solid var(--line);
}
.app-background-position-confirm-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
@media (max-width: 620px) {
  .app-background-position-modal { align-items: end; padding: 8px max(8px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left)); }
  .app-background-position-dialog { width: 100%; max-height: min(86dvh, var(--app-viewport-height, 86dvh)); border-radius: 20px 20px 16px 16px; }
  .app-background-position-preview { min-height: 190px; }
  .app-background-position-dialog > footer { align-items: stretch; }
  .app-background-position-dialog > footer > .button { flex: 1 1 auto; }
  .app-background-position-confirm-actions { flex: 2 1 auto; }
  .app-background-position-confirm-actions .button { flex: 1 1 0; }
}

/* v3.0.12: drawing-surface underlay and tools-hidden viewport sizing.
   v3.0.17 centralizes the background-action button box model above. */
.app-drawing-surface-toggle { margin-top: 8px; }
.app-appearance-background-actions .button { font-size: 12px; padding-inline: 6px; }

/* The actual image/pattern rectangle owns an opaque safety underlay by default. */
.source-preview-image,
#patternCanvas,
#quickPreviewCanvas,
#beadModeCanvas,
.recognition-canvas-wrap canvas,
#recognitionGridBaseCanvas,
.professional-drawing-stage,
.professional-drawing-compare-stage {
  background-color: #fff;
}
.professional-drawing-stage,
.professional-drawing-compare-stage { background-color: #f8fafc; }

/* User opt-in: remove only the actual drawing/image underlay. Canvas pixel data remains independent. */
body.drawing-surface-transparent .source-preview-image,
body.drawing-surface-transparent #patternCanvas,
body.drawing-surface-transparent #quickPreviewCanvas,
body.drawing-surface-transparent #beadModeCanvas,
body.drawing-surface-transparent .recognition-canvas-wrap canvas,
body.drawing-surface-transparent #recognitionGridBaseCanvas,
body.drawing-surface-transparent .professional-drawing-stage {
  background-color: transparent;
}

/* v3.0.32: professional drawing surface transparency and workspace translucency are separate responsibilities.
   The drawing setting only removes the paper underlay owned by the editable stage; workspace shells keep their normal
   appearance unless the dedicated professional-workspace translucency preference is enabled. */
body.professional-workspace-translucent .professional-drawing-page {
  background: transparent;
}

/* Hidden tools must consume the real visible viewport, not create a second 100vh-sized area. */
body.main-tools-hidden { overflow: hidden; }
body.main-tools-hidden > .app-shell {
  width: 100%;
  max-width: none;
  height: var(--app-viewport-height, 100dvh);
  min-height: 0;
  padding: 0;
  gap: 0;
  overflow: hidden;
}
body.main-tools-hidden.app-immersive-mode:not(.professional-drawing-active):not(.bead-mode-active):not(.recognition-open) > .app-shell,
body.main-tools-hidden.app-fullscreen-active:not(.professional-drawing-active):not(.bead-mode-active):not(.recognition-open) > .app-shell {
  height: var(--app-viewport-height, 100dvh);
  min-height: 0;
  margin-top: 0;
  padding: 0;
}
body.main-tools-hidden .workspace {
  height: 100%;
  min-height: 0;
  grid-template-rows: minmax(0, 1fr);
}
body.main-tools-hidden .canvas-viewport {
  height: 100%;
  min-height: 0;
  padding: 8px;
}

#beadModePage.tools-hidden {
  box-sizing: border-box;
  width: 100%;
  height: var(--app-viewport-height, 100dvh);
  min-height: 0;
  padding: 0;
  overflow: hidden;
}
#beadModePage.tools-hidden .bead-mode-layout {
  display: block;
  width: 100%;
  max-width: none;
  height: 100%;
  min-height: 0;
  margin: 0;
  padding: 0;
}
#beadModePage.tools-hidden .bead-mode-preview-card {
  height: 100%;
  min-height: 0;
  grid-template-rows: minmax(0, 1fr);
  border: 0;
  border-radius: 0;
  box-shadow: none;
}
#beadModePage.tools-hidden .bead-mode-viewport {
  height: 100%;
  min-height: 0;
}

/* v3.0.19: phone-first minimal mode, guide notice, and shared information-toast surface. */
.user-guide-must-read {
  margin: 0 0 16px;
  padding: 16px 18px;
  border: 1px solid #f0c36a;
  border-radius: 14px;
  background: #fff8e8;
  color: #7c4708;
}
.user-guide-must-read > strong { display: block; margin-bottom: 8px; color: #8a4b08; font-size: 1.05rem; }
.user-guide-must-read ul { margin: 0; padding-left: 20px; display: grid; gap: 7px; line-height: 1.62; }
.user-guide-must-read li strong { color: #7c2d12; }
.user-guide-footer-preferences { display: grid; gap: 4px; min-width: 0; }
.user-guide-footer-preferences .check-row { min-height: 24px; }

.app-toast.tone-info {
  background: var(--panel-bg);
  border-color: var(--panel-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

body.minimal-mode > .topbar {
  min-height: 56px;
  padding: 8px max(12px, env(safe-area-inset-right)) 8px max(12px, env(safe-area-inset-left));
  align-items: center;
}
body.minimal-mode > .topbar .brand-mark,
body.minimal-mode > .topbar .app-version,
body.minimal-mode > .topbar .top-actions > :not(#appSettingsButton) { display: none !important; }
body.minimal-mode > .topbar .brand-block { gap: 0; }
body.minimal-mode > .topbar .brand-block h1 { font-size: clamp(16px, 4.8vw, 20px); white-space: nowrap; }
body.minimal-mode > .topbar #appSettingsButton { display: inline-flex !important; }
body.minimal-mode > .topbar .top-settings-label { display: inline !important; }

body.minimal-mode > .app-shell > .settings-panel > .panel-section:not([data-panel-id="processing"]),
body.minimal-mode > .app-shell > .inspector-panel > .panel-section:not([data-panel-id="export"]),
body.minimal-mode #mobileActionBar { display: none !important; }
body.minimal-mode > .app-shell > .settings-panel .current-source-status,
body.minimal-mode > .app-shell > .settings-panel .recognition-entry-button,
body.minimal-mode > .app-shell > .settings-panel .recognition-preprocess-actions,
body.minimal-mode > .app-shell > .settings-panel .workspace-reset-button { display: none !important; }
body.minimal-mode > .app-shell > .settings-panel,
body.minimal-mode > .app-shell > .inspector-panel { display: block; }
body.minimal-mode .canvas-viewport.minimal-import-ready { cursor: pointer; touch-action: manipulation; }
body.minimal-mode .canvas-viewport.minimal-import-ready .empty-state { pointer-events: none; }

@media (max-width: 900px) {
  body.minimal-mode { padding-bottom: 0; }
  body.minimal-mode > .topbar { position: sticky; top: 0; }
  body.minimal-mode > .app-shell { padding: 7px; gap: 7px; }
  body.minimal-mode > .app-shell > .workspace { order: -1; }
  body.minimal-mode > .app-shell > .settings-panel,
  body.minimal-mode > .app-shell > .inspector-panel { border-radius: 14px; }
}

@media (max-width: 620px) {
  .user-guide-must-read { padding: 14px; }
  .user-guide-footer-preferences { width: 100%; }
  body.minimal-mode > .topbar .button { min-height: 36px; }
}

/* v3.0.21: complete light-surface contrast for the four confirmed homepage states.
   These rules are deliberately local: they only correct foreground/surface pairing
   and do not change panel behavior, palette selection, inventory logic or color limits. */

/* A hovered/touched collapsible heading has a stable light surface. Keep all of its
   text and indicators on the established dark palette instead of the photo-derived
   obvious foreground. */
body.obvious-interface-active .panel-toggle:hover .section-title h2 {
  color: #252529;
  text-shadow: none;
}
body.obvious-interface-active .panel-toggle:hover .step {
  color: #5151be;
  text-shadow: none;
}
body.obvious-interface-active .panel-toggle:hover .panel-chevron,
body.obvious-interface-active .panel-toggle:hover .text-button {
  color: #475467;
  text-shadow: none;
}
body.obvious-text-active .panel-toggle:hover .panel-summary {
  color: #5f6269;
  text-shadow: none;
}

/* Material-statistics and bead-inventory metric cards are stable light controls.
   Their helper labels must not inherit a light foreground from the page photo. */
body.obvious-text-active .summary-cards > div > span {
  color: #6e6e73;
  text-shadow: none;
}

/* The selected palette card remains a light control with a subtle selection tint,
   rather than replacing the light surface with a nearly transparent blue layer. */
.palette-brand-card.selected {
  border-color: rgba(91,91,214,.52);
  background:
    linear-gradient(rgba(91,91,214,.075), rgba(91,91,214,.075)),
    var(--control-bg);
  box-shadow: inset 0 0 0 1px rgba(91,91,214,.10);
}

/* The active "unlimited colors" button owns a solid semantic selection surface.
   General hover/touch styles must not turn that surface light while leaving white text. */
.max-colors-unlimited-button.active,
.max-colors-unlimited-button.active:hover:not(:disabled),
.max-colors-unlimited-button[aria-pressed="true"],
.max-colors-unlimited-button[aria-pressed="true"]:hover:not(:disabled) {
  color: #fff;
  text-shadow: none;
  background: var(--primary);
  border-color: var(--primary);
}
body.obvious-interface-active .button.secondary.max-colors-unlimited-button.active,
body.obvious-interface-active .button.secondary.max-colors-unlimited-button.active:hover:not(:disabled),
body.obvious-interface-active .button.secondary.max-colors-unlimited-button[aria-pressed="true"],
body.obvious-interface-active .button.secondary.max-colors-unlimited-button[aria-pressed="true"]:hover:not(:disabled) {
  color: #fff;
  text-shadow: none;
  background: var(--primary);
  border-color: var(--primary);
}

/* v3.0.25 custom-model primary controls */
.experimental-model-primary-controls { display: grid; gap: 10px; }
.experimental-model-strength-control { display: grid; gap: 6px; padding: 10px; border: 1px solid #d8deea; border-radius: 10px; background: #fff; }
.experimental-model-strength-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.experimental-model-strength-heading strong { color: #344054; font-size: 12px; }
.experimental-model-strength-heading output { color: var(--primary-dark); font-size: 13px; font-weight: 800; }
.experimental-model-strength-control input[type="range"] { width: 100%; min-width: 0; }
.experimental-model-strength-scale { display: flex; justify-content: space-between; gap: 10px; color: #667085; font-size: 10px; }
.experimental-model-strength-control.is-disabled { opacity: .58; }
.experimental-model-management-group { margin-top: 0; }
.processing-overlay.simple-image-processing .processing-spinner,
.processing-overlay.simple-image-processing .processing-stage,
.processing-overlay.simple-image-processing .processing-times,
.processing-overlay.simple-image-processing .processing-cancel { display: none !important; }
.processing-overlay.simple-image-processing .processing-card { width: min(460px, 100%); gap: 12px; }
.processing-overlay.simple-image-processing .processing-detail { order: 2; min-height: 0; text-align: left; color: #475467; font-size: 13px; }
.processing-overlay.simple-image-processing .processing-card progress { order: 3; }
.processing-overlay.simple-image-processing .processing-heading { order: 1; }
@media (max-width: 640px) {
  .experimental-model-strength-scale { font-size: 9px; }
}


/* Public branding / hidden demo branding */
.demo-branding-asset,
.demo-branding-version { display: none !important; }
body.demo-branding-unlocked .demo-branding-asset { display: block !important; }
body.demo-branding-unlocked .demo-branding-version { display: inline-flex !important; }
.demo-branding-password-row { padding: 0 0 2px; }
.demo-branding-password-input {
  display: block;
  width: 100%;
  min-height: 40px;
  box-sizing: border-box;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--control-bg);
  color: var(--text);
  padding: 8px 10px;
  font: inherit;
  outline: none;
}
.demo-branding-password-input:focus {
  border-color: rgba(91,91,214,.55);
  box-shadow: 0 0 0 3px rgba(91,91,214,.10);
}


/* v3.0.27: demo watermark is display-only and never intercepts app interaction. */
.demo-branding-watermark {
  position: fixed;
  inset: 0;
  z-index: 4000;
  display: none;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: minmax(100px, 1fr);
  place-items: center;
  gap: 22px 12px;
  overflow: hidden;
  padding: max(18px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) max(18px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
  pointer-events: none;
  user-select: none;
  -webkit-user-select: none;
}
body.demo-branding-unlocked .demo-branding-watermark { display: grid; }
.demo-branding-watermark > span {
  display: block;
  max-width: 32vw;
  color: rgba(160, 28, 28, .16);
  font-size: clamp(14px, 1.7vw, 24px);
  font-weight: 850;
  line-height: 1.25;
  letter-spacing: .08em;
  text-align: center;
  white-space: nowrap;
  transform: rotate(-32deg);
  transform-origin: center;
  text-shadow: 0 0 1px rgba(255,255,255,.30);
}
@media (max-width: 720px) {
  .demo-branding-watermark { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 4px; }
  .demo-branding-watermark > span { max-width: 54vw; font-size: clamp(12px, 3vw, 18px); }
}