/* jpxlr tool-specific CSS.
   Workbench tokens, base controls, windows, toasts, and Theme Studio come from ../../../style/workbench.css. */
html, body { height: 100%; overflow: hidden; }
body.jpxlr-app {
  margin: 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--wb-grid-minor), transparent 65%) 1px, transparent 1px),
    linear-gradient(color-mix(in srgb, var(--wb-grid-minor), transparent 68%) 1px, transparent 1px),
    var(--wb-bg);
  background-size: 18px 18px;
  color: var(--wb-text);
  font-family: var(--wb-font);
  font-size: 13px;
  line-height: 1.4;
}
.jpxlr-app h1,
.jpxlr-app h2,
.jpxlr-app h3,
.jpxlr-app p,
.jpxlr-app figure { margin: 0; }
.jpxlr-app small { color: var(--wb-muted); }
.jpxlr-app .visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}
.jpxlr-app canvas {
  image-rendering: pixelated;
  max-width: none;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--wb-line-2), transparent 15%);
}
.app-frame {
  min-height: 100vh;
  border: 2px solid var(--wb-accent);
  background: color-mix(in srgb, var(--wb-bg), black 8%);
}
.app-topbar {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 8px;
  background: linear-gradient(var(--wb-panel-2), var(--wb-panel));
  border-bottom: 1px solid var(--wb-line-2);
}
.jpxlr-brand { display: flex; align-items: baseline; gap: 8px; font-family: var(--mono); letter-spacing: .07em; }
.jpxlr-brand strong { font-size: 18px; }
.brand-glyph { color: var(--wb-accent); text-shadow: 0 0 12px color-mix(in srgb, var(--wb-accent), transparent 60%); }
.app-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 6px; }
.compact-select { width: auto; max-width: 180px; }
.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 440px);
  min-height: calc(100vh - 48px);
}
.preview-column { min-width: 0; padding: 10px; display: flex; flex-direction: column; gap: 10px; }
.control-column { min-width: 0; padding: 10px; border-left: 1px solid var(--wb-line); background: color-mix(in srgb, var(--wb-bg), black 8%); overflow: auto; max-height: calc(100vh - 48px); }
.wb-section {
  background: color-mix(in srgb, var(--wb-panel), transparent 0%);
  border: 1px solid var(--wb-line);
  box-shadow: inset 1px 1px 0 color-mix(in srgb, var(--wb-text), transparent 92%);
  padding: 10px;
}
details.wb-section { padding: 8px 10px 10px; }
details.wb-section > * + * { margin-top: 8px; }
.section-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.section-head h1 { font-family: var(--mono); font-size: clamp(18px, 2.4vw, 28px); line-height: 1.1; }
.section-head h2 { font-family: var(--mono); font-size: 16px; }
.section-head p { margin-top: 2px; color: var(--wb-muted); }
.section-head.compact { align-items: center; }
.wb-pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 8px;
  border: 1px solid var(--wb-line-2);
  background: var(--wb-select);
  color: var(--wb-text);
  font-family: var(--mono);
  white-space: nowrap;
}
.drop-zone {
  margin-top: 10px;
  min-height: 92px;
  border: 1px dashed var(--wb-line-2);
  background: color-mix(in srgb, var(--wb-input), transparent 10%);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 14px;
  gap: 4px;
  color: var(--wb-muted);
  cursor: pointer;
}
.drop-zone strong { color: var(--wb-text); font-family: var(--mono); }
.drop-zone.is-dragging, .drop-zone:focus { outline: 2px solid var(--wb-accent); border-color: var(--wb-accent); }
.preview-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; min-height: 0; }
.canvas-card { min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.canvas-card figcaption { display: flex; justify-content: space-between; gap: 8px; font-family: var(--mono); }
.canvas-well {
  flex: 1;
  min-height: 280px;
  overflow: auto;
  display: grid;
  place-items: center;
  background-color: var(--wb-view-bg);
  border: 1px solid var(--wb-line-2);
  padding: 12px;
}
.canvas-well.checkerboard {
  background-image:
    linear-gradient(45deg, color-mix(in srgb, var(--wb-grid-major), transparent 65%) 25%, transparent 25%),
    linear-gradient(-45deg, color-mix(in srgb, var(--wb-grid-major), transparent 65%) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, color-mix(in srgb, var(--wb-grid-major), transparent 65%) 75%),
    linear-gradient(-45deg, transparent 75%, color-mix(in srgb, var(--wb-grid-major), transparent 65%) 75%);
  background-size: 18px 18px;
  background-position: 0 0, 0 9px, 9px -9px, -9px 0;
}
canvas { image-rendering: pixelated; max-width: none; box-shadow: 0 0 0 1px color-mix(in srgb, var(--wb-line-2), transparent 15%); }
.status-section { display: grid; gap: 7px; }
.status-row { display: grid; grid-template-columns: 70px 1fr; gap: 8px; }
.status-row strong { font-family: var(--mono); color: var(--wb-accent); }
#status-text[data-kind="good"] { color: var(--wb-good); }
#status-text[data-kind="bad"] { color: var(--wb-bad); }
#status-text[data-kind="info"] { color: var(--wb-info); }
.warning-list { display: grid; gap: 6px; }
.wb-alert { padding: 7px 8px; border: 1px solid var(--wb-line-2); background: var(--wb-input); }
.wb-alert.wb-warn { border-color: var(--wb-warn); color: var(--wb-warn); }
.controls-form { display: grid; gap: 8px; }
.control-head { margin-bottom: 8px; }
.quick-row, .palette-tools { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.wb-field { display: grid; gap: 4px; color: var(--wb-muted); font-size: 12px; }
.wb-field span, .range-row span { font-family: var(--mono); color: var(--wb-muted); }
.range-row { display: grid; grid-template-columns: 100px minmax(0, 1fr) 48px; gap: 8px; align-items: center; margin-top: 8px; }
.range-row output { text-align: right; font-family: var(--mono); color: var(--wb-accent); }
.check-row { display: flex; align-items: center; gap: 8px; margin-top: 8px; color: var(--wb-text); }
.palette-strip {
  margin-top: 8px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(22px, 1fr));
  gap: 3px;
  max-height: 164px;
  overflow: auto;
  padding: 6px;
  background: var(--wb-input);
  border: 1px solid var(--wb-line-2);
}
.palette-chip, .palette-chip-input {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  min-width: 20px;
  min-height: 20px;
  border: 1px solid color-mix(in srgb, var(--wb-line-2), black 25%);
  padding: 0;
}
.palette-chip-more { display: grid; place-items: center; background: var(--wb-panel-2); color: var(--wb-muted); font-size: 10px; }
.palette-strip.is-generated { opacity: .9; }

/* Workbench-owned toast/window/theme-studio primitives removed; using site ../../../style/workbench.css. */

@media (max-width: 980px) {
  .workspace { grid-template-columns: 1fr; }
  .control-column { border-left: 0; border-top: 1px solid var(--wb-line); max-height: none; }
  .preview-grid { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .app-topbar { align-items: stretch; flex-direction: column; }
  .app-actions { justify-content: flex-start; }
  .grid-2, .wb-theme-studio { grid-template-columns: 1fr; }
  .range-row { grid-template-columns: 1fr; gap: 4px; }
  .range-row output { text-align: left; }
}

.asset-bar {
  margin-top: 8px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}
.asset-meta {
  min-width: 0;
  display: grid;
  gap: 1px;
  padding: 4px 8px;
  border: 1px solid var(--wb-line);
  background: var(--wb-input);
}
.asset-meta strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--mono);
}
.asset-meta span { color: var(--wb-muted); font-size: 12px; }
.image-strip {
  margin-top: 8px;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 6px;
  min-height: 56px;
  border: 1px solid var(--wb-line);
  background: var(--wb-input);
}
.image-thumb {
  flex: 0 0 150px;
  min-height: 46px;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  padding: 5px 7px;
  border: 1px solid var(--wb-line-2);
  background: var(--wb-panel-2);
  overflow: hidden;
  text-align: left;
}
.image-thumb span {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  color: var(--wb-accent);
  font-family: var(--mono);
  border: 1px solid var(--wb-line);
  background: var(--wb-input);
}
.image-thumb strong, .image-thumb em { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.image-thumb strong { font-size: 12px; font-weight: 600; }
.image-thumb em { grid-column: 2; font-size: 10px; color: var(--wb-muted); font-style: normal; margin-top: -4px; }
.image-thumb.is-rendered em { color: var(--wb-good); }
.image-thumb.is-active { border-color: var(--wb-accent); outline: 1px solid var(--wb-accent); }
.compare-card { min-height: 0; }
.compare-well {
  min-height: clamp(300px, 56vh, 720px);
  align-items: center;
  justify-items: center;
  position: relative;
}
.compare-stage {
  --compare-split: 50%;
  position: relative;
  width: 640px;
  height: 480px;
  max-width: none;
  background: var(--wb-view-bg);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--wb-line-2), transparent 15%);
  overflow: hidden;
  touch-action: none;
}
.compare-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  box-shadow: none;
}
.compare-canvas.source-layer {
  z-index: 2;
  image-rendering: auto;
  clip-path: inset(0 calc(100% - var(--compare-split)) 0 0);
}
.compare-canvas.preview-layer {
  z-index: 1;
  image-rendering: pixelated;
}
.compare-divider {
  position: absolute;
  z-index: 4;
  top: 0;
  bottom: 0;
  left: var(--compare-split);
  width: 2px;
  transform: translateX(-1px);
  background: var(--wb-accent);
  box-shadow: 0 0 0 1px rgba(0,0,0,.45), 0 0 18px color-mix(in srgb, var(--wb-accent), transparent 35%);
  pointer-events: none;
}
.compare-divider::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 42px;
  transform: translate(-50%, -50%);
  border: 1px solid var(--wb-accent);
  background: color-mix(in srgb, var(--wb-panel-2), black 10%);
  box-shadow: inset 1px 1px 0 color-mix(in srgb, var(--wb-text), transparent 80%);
}
.compare-label {
  position: absolute;
  z-index: 5;
  top: 8px;
  padding: 3px 6px;
  border: 1px solid var(--wb-line-2);
  background: color-mix(in srgb, var(--wb-window-bg), transparent 12%);
  color: var(--wb-text);
  font-family: var(--mono);
  font-size: 11px;
  pointer-events: none;
}
.compare-label-source { left: 8px; }
.compare-label-output { right: 8px; }
.compare-slider {
  position: absolute;
  z-index: 6;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
  margin: 0;
}
.compare-foot {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--wb-muted);
  font-size: 12px;
  font-family: var(--mono);
}
.compare-foot output { color: var(--wb-accent); white-space: nowrap; }

@media (max-width: 620px) {
  .asset-bar { grid-template-columns: 1fr 1fr; }
  .asset-meta { grid-column: 1 / -1; order: -1; }
  .compare-foot { flex-direction: column; }
}

/* jpxlr step 4: single-space compare viewer and image-set controls. */
.compare-stage > canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  box-shadow: none;
}
#compare-original-canvas {
  z-index: 2;
  image-rendering: auto;
  clip-path: inset(0 calc(100% - var(--compare-split)) 0 0);
}
.compare-preview-canvas {
  z-index: 1;
  image-rendering: pixelated;
}
.compare-handle {
  position: absolute;
  z-index: 4;
  top: 0;
  bottom: 0;
  left: var(--compare-split);
  width: 2px;
  transform: translateX(-1px);
  background: var(--wb-accent);
  pointer-events: none;
  box-shadow: 0 0 0 1px rgba(0,0,0,.55), 0 0 18px color-mix(in srgb, var(--wb-accent), transparent 35%);
}
.compare-handle span {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 44px;
  transform: translate(-50%, -50%);
  border: 1px solid var(--wb-accent);
  background: color-mix(in srgb, var(--wb-panel-2), black 10%);
  box-shadow: inset 1px 1px 0 color-mix(in srgb, var(--wb-text), transparent 82%);
}
.compare-tags {
  position: absolute;
  z-index: 5;
  inset: 8px 8px auto 8px;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}
.compare-tags span {
  padding: 3px 6px;
  border: 1px solid var(--wb-line-2);
  background: color-mix(in srgb, var(--wb-window-bg), transparent 12%);
  color: var(--wb-text);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.canvas-meta-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--wb-muted);
  font-family: var(--mono);
}
.batch-section { display: grid; gap: 8px; }
.batch-nav { display: flex; gap: 6px; }
#batch-status { color: var(--wb-muted); }
.batch-list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 6px;
  min-height: 60px;
  border: 1px solid var(--wb-line);
  background: var(--wb-input);
}
.batch-item {
  flex: 0 0 170px;
  min-height: 48px;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 6px;
  align-items: center;
  padding: 5px 7px;
  text-align: left;
  background: var(--wb-panel-2);
  border: 1px solid var(--wb-line-2);
}
.batch-item .batch-index {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--wb-line);
  background: var(--wb-input);
  color: var(--wb-accent);
  font-family: var(--mono);
}
.batch-item .batch-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.batch-item small {
  grid-column: 2;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.batch-item.is-active {
  border-color: var(--wb-accent);
  outline: 1px solid var(--wb-accent);
}
#backend-status[data-backend="webgpu"] { color: var(--wb-good); }
#backend-status[data-backend="cpu"] { color: var(--wb-warn); }


/* jpxlr step 6: double-buffer preview updates. Keep the last completed frame visible while a new render is in flight. */
.compare-stage.is-processing::after {
  content: attr(data-processing-label);
  position: absolute;
  z-index: 7;
  left: 8px;
  bottom: 8px;
  max-width: min(440px, calc(100% - 16px));
  padding: 5px 8px;
  border: 1px solid var(--wb-accent);
  background: color-mix(in srgb, var(--wb-window-bg), transparent 8%);
  color: var(--wb-text);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.25;
  box-shadow: 0 8px 30px rgba(0,0,0,.35);
  pointer-events: none;
}
.compare-stage.is-processing::before {
  content: "";
  position: absolute;
  z-index: 6;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--wb-accent), transparent);
  opacity: .85;
  pointer-events: none;
}
.compare-well.is-processing .compare-handle {
  box-shadow: 0 0 0 1px rgba(0,0,0,.55), 0 0 22px color-mix(in srgb, var(--wb-accent), transparent 20%);
}
.batch-item.is-rendering {
  border-color: var(--wb-warn);
}
.batch-item.is-rendering .batch-index {
  color: var(--wb-warn);
}

/* jpxlr step 7: image-set export and playback controls. */
.batch-nav {
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
}
.fps-control {
  display: inline-grid;
  grid-template-columns: auto 58px;
  align-items: center;
  gap: 5px;
  color: var(--wb-muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.fps-control input {
  width: 58px;
  min-height: 28px;
  padding: 3px 5px;
  text-align: right;
}
.batch-item.is-cached .batch-index {
  color: var(--wb-good);
}
#export-zip:not(:disabled), #render-set:not(:disabled), #play-frames:not(:disabled) {
  border-color: color-mix(in srgb, var(--wb-accent), var(--wb-line-2) 40%);
}
body.is-batch-busy .app-frame {
  cursor: wait;
}
body.is-batch-busy .batch-section {
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--wb-warn), transparent 25%);
}

/* jpxlr step 9: viewport controls, crop overlay, onion skin, and clean split clipping. */
.viewport-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--wb-line);
  background: color-mix(in srgb, var(--wb-input), transparent 10%);
}
.viewport-toolbar button.is-active,
.viewport-toolbar button[aria-pressed="true"] {
  border-color: var(--wb-accent);
  color: var(--wb-accent);
  background: color-mix(in srgb, var(--wb-select), transparent 20%);
}
.viewport-check {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--wb-text);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.viewport-range {
  display: inline-grid;
  grid-template-columns: auto 86px 38px;
  align-items: center;
  gap: 5px;
  color: var(--wb-muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.viewport-range input { width: 86px; }
.viewport-range output,
.viewport-readout {
  color: var(--wb-accent);
  font-family: var(--mono);
  font-size: 11px;
  white-space: nowrap;
}
.compare-well.is-crop-mode .compare-slider { pointer-events: none; }
.compare-well.is-crop-mode .compare-stage { cursor: crosshair; }
#compare-original-canvas {
  z-index: 4;
  image-rendering: pixelated;
  clip-path: inset(0 calc(100% - var(--compare-split)) 0 0);
}
.compare-preview-canvas {
  z-index: 2;
  image-rendering: pixelated;
  clip-path: inset(0 0 0 var(--compare-split));
}
.onion-canvas {
  z-index: 3;
  image-rendering: pixelated;
  opacity: 1;
  mix-blend-mode: normal;
  clip-path: inset(0 0 0 var(--compare-split));
  pointer-events: none;
}
.compare-stage.has-onion .onion-canvas {
  filter: drop-shadow(0 0 1px color-mix(in srgb, var(--wb-accent), transparent 30%));
}
.crop-overlay {
  position: absolute;
  z-index: 8;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.crop-box {
  position: absolute;
  min-width: 1px;
  min-height: 1px;
  border: 1px solid var(--wb-accent);
  background: color-mix(in srgb, var(--wb-accent), transparent 88%);
  box-shadow: 0 0 0 9999px rgba(0,0,0,.42), inset 0 0 0 1px rgba(0,0,0,.45);
}
.crop-box::before,
.crop-box::after {
  content: "";
  position: absolute;
  inset: 33.333% 0 auto 0;
  height: 1px;
  background: color-mix(in srgb, var(--wb-accent), transparent 25%);
}
.crop-box::after { inset: 66.666% 0 auto 0; }
.compare-stage.is-crop-mode .compare-handle { opacity: .35; }
.wb-alert-title { font-weight: 700; color: var(--wb-warn); font-family: var(--mono); }
.wb-alert-body { color: var(--wb-text); margin-top: 4px; }
.wb-alert ul { margin: 8px 0 0 18px; padding: 0; color: var(--wb-muted); }
@media (max-width: 720px) {
  .viewport-range { grid-template-columns: auto 1fr 38px; width: 100%; }
}

/* jpxlr step 10: fixed three-panel workbench layout. Keep all primary controls visible without page scrolling. */
html, body {
  height: 100%;
  overflow: hidden;
}
.app-frame {
  height: 100vh;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}
.app-topbar {
  min-height: 42px;
  padding: 5px 8px;
}
.app-actions {
  gap: 5px;
}
.app-actions button,
.app-actions .button-like,
.app-actions select {
  min-height: 26px;
}
.workspace {
  height: 100%;
  min-height: 0;
  display: grid;
  grid-template-columns: clamp(270px, 20vw, 350px) minmax(380px, 1fr) clamp(300px, 23vw, 390px);
  grid-template-areas: "sample preview colour";
  overflow: hidden;
}
.control-panel-left { grid-area: sample; }
.preview-column { grid-area: preview; }
.control-panel-right { grid-area: colour; }
.control-column,
.preview-column {
  min-height: 0;
  height: 100%;
}
.control-column {
  max-height: none;
  overflow: hidden;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: color-mix(in srgb, var(--wb-bg), black 8%);
}
.control-panel-left {
  border-left: 0;
  border-right: 1px solid var(--wb-line);
}
.control-panel-right {
  border-left: 1px solid var(--wb-line);
}
.preview-column {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  overflow: hidden;
}
.control-head,
.hero-section,
.batch-section,
.status-section {
  flex: 0 0 auto;
}
.control-head { margin-bottom: 0; }
.wb-section {
  padding: 8px;
}
details.wb-section {
  padding: 6px 8px 7px;
}
details.wb-section > * + * {
  margin-top: 5px;
}
.section-head h1 {
  font-size: clamp(17px, 1.75vw, 22px);
}
.section-head h2 {
  font-size: 14px;
}
.section-head p {
  font-size: 11px;
  line-height: 1.25;
}
.controls-form {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  align-content: start;
  gap: 6px;
  overflow: hidden;
}
.controls-form-left,
.controls-form-right {
  grid-auto-rows: min-content;
}
summary {
  font-size: 12px;
  line-height: 1.2;
}
.quick-row,
.palette-tools {
  gap: 5px;
  margin-top: 6px;
}
.compact-actions button,
.quick-row button {
  min-height: 24px;
  padding: 3px 7px;
}
.grid-2,
.compact-grid {
  gap: 6px;
}
.wb-field {
  gap: 3px;
  font-size: 11px;
}
select,
input[type="number"],
input[type="text"] {
  min-height: 25px;
  padding: 2px 6px;
}
input[type="color"] {
  block-size: 26px;
}
.range-row {
  grid-template-columns: 88px minmax(0, 1fr) 38px;
  gap: 6px;
  margin-top: 5px;
}
.range-row span,
.range-row output,
.check-row {
  font-size: 11px;
}
.check-row {
  margin-top: 5px;
  gap: 6px;
}
.palette-strip {
  max-height: min(17vh, 148px);
  min-height: 52px;
  grid-template-columns: repeat(auto-fill, minmax(16px, 1fr));
  gap: 2px;
  padding: 4px;
}
.palette-chip,
.palette-chip-input {
  min-width: 14px;
  min-height: 14px;
}
.hero-section {
  padding: 8px;
}
.hero-section .section-head {
  align-items: center;
}
.drop-zone {
  min-height: 42px;
  margin-top: 6px;
  padding: 6px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.drop-zone span {
  font-size: 11px;
}
.compare-card {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
}
.canvas-card {
  gap: 6px;
}
.viewport-toolbar {
  flex: 0 0 auto;
  padding: 5px;
  gap: 5px;
}
.viewport-toolbar button {
  min-height: 24px;
  padding: 3px 7px;
}
.viewport-range {
  grid-template-columns: auto 72px 34px;
}
.viewport-range input {
  width: 72px;
}
.canvas-well,
.compare-well {
  flex: 1 1 auto;
  min-height: 0;
  height: auto;
  overflow: hidden;
  contain: size layout paint;
  padding: 8px;
  overscroll-behavior: none;
}
.compare-stage {
  flex: 0 0 auto;
  transform-origin: center center;
  will-change: width, height;
}
.compare-stage > canvas,
#compare-original-canvas,
.compare-preview-canvas,
.onion-canvas {
  image-rendering: pixelated !important;
  image-rendering: crisp-edges !important;
}
.canvas-meta-row {
  flex: 0 0 auto;
  font-size: 11px;
  line-height: 1.2;
}
.batch-section {
  padding: 7px 8px;
  gap: 5px;
}
.batch-nav {
  gap: 5px;
}
.batch-nav button,
.fps-control input {
  min-height: 24px;
}
.batch-list {
  min-height: 46px;
  max-height: 58px;
  padding: 4px;
  overflow-x: auto;
  overflow-y: hidden;
}
.batch-item {
  flex-basis: 144px;
  min-height: 40px;
  padding: 4px 6px;
}
.batch-item .batch-index {
  width: 20px;
  height: 20px;
}
.status-section {
  padding: 6px 8px;
  gap: 4px;
}
.status-row {
  grid-template-columns: 62px 1fr;
  gap: 6px;
  font-size: 11px;
}
.warning-list {
  max-height: 40px;
  overflow: hidden;
}
.wb-alert {
  padding: 5px 6px;
  font-size: 11px;
}
.wb-window-body {
  overflow: auto;
}

@media (max-height: 800px) {
  .app-topbar { min-height: 38px; }
  button, .button-like { min-height: 24px; padding-block: 2px; }
  .wb-section { padding: 6px; }
  details.wb-section { padding: 5px 6px 6px; }
  .controls-form { gap: 5px; }
  .drop-zone { min-height: 34px; padding-block: 4px; }
  .palette-strip { max-height: 112px; }
  .batch-list { max-height: 48px; min-height: 40px; }
  .status-section { display: grid; grid-template-columns: 1fr 1fr; }
  .status-section .warning-list { grid-column: 1 / -1; }
}

@media (max-height: 700px) {
  .hero-section .section-head p,
  .drop-zone span,
  .control-head .section-head p {
    display: none;
  }
  .palette-strip { max-height: 80px; }
  .range-row { margin-top: 3px; }
  .check-row { margin-top: 3px; }
}

@media (max-width: 1180px) {
  .workspace {
    grid-template-columns: minmax(230px, 25vw) minmax(340px, 1fr) minmax(250px, 25vw);
  }
  .range-row {
    grid-template-columns: 72px minmax(0, 1fr) 34px;
  }
}

@media (max-width: 900px) {
  body { overflow: hidden; }
  .workspace {
    grid-template-columns: 220px minmax(320px, 1fr) 230px;
  }
  .control-column,
  .preview-column { padding: 6px; }
}


/* jpxlr step 11: adjustable side panels, larger readable controls, and status HUD. */
.workspace {
  --left-panel-w: clamp(300px, 22vw, 390px);
  --right-panel-w: clamp(330px, 24vw, 430px);
  --panel-resizer-w: 9px;
  grid-template-columns: var(--left-panel-w) var(--panel-resizer-w) minmax(320px, 1fr) var(--panel-resizer-w) var(--right-panel-w);
  grid-template-areas: "sample left-resizer preview right-resizer colour";
}
.panel-resizer-left { grid-area: left-resizer; }
.panel-resizer-right { grid-area: right-resizer; }
.panel-resizer {
  min-width: var(--panel-resizer-w);
  height: 100%;
  display: grid;
  place-items: center;
  cursor: col-resize;
  touch-action: none;
  background:
    linear-gradient(90deg, transparent, color-mix(in srgb, var(--wb-line), transparent 20%), transparent),
    var(--wb-splitter-bg, color-mix(in srgb, var(--wb-bg), black 14%));
  border-inline: 1px solid color-mix(in srgb, var(--wb-line), black 10%);
  z-index: 5;
}
.panel-resizer span {
  width: 3px;
  height: 44px;
  display: block;
  border-inline: 1px solid color-mix(in srgb, var(--wb-grip-color, var(--wb-muted)), transparent 18%);
  opacity: .9;
}
.panel-resizer:hover,
.panel-resizer:focus-visible,
.panel-resizer.is-dragging {
  outline: none;
  background: color-mix(in srgb, var(--wb-accent), var(--wb-bg) 76%);
}
.panel-resizer:hover span,
.panel-resizer:focus-visible span,
.panel-resizer.is-dragging span {
  border-color: var(--wb-accent);
  opacity: 1;
}
body.is-panel-resizing {
  cursor: col-resize;
  user-select: none;
}
.control-column {
  padding: 10px;
  gap: 9px;
  font-size: 13px;
}
.wb-section {
  padding: 9px;
}
details.wb-section {
  padding: 8px 9px 9px;
}
.section-head h2 {
  font-size: 15px;
}
.section-head p,
.wb-field,
.range-row span,
.range-row output,
.check-row,
.viewport-check,
.viewport-range,
.fps-control {
  font-size: 12px;
}
summary {
  font-size: 13px;
}
button,
.button-like,
select,
input[type="number"],
input[type="text"] {
  min-height: 28px;
}
.compact-actions button,
.quick-row button,
.viewport-toolbar button,
.batch-nav button,
.fps-control input {
  min-height: 27px;
}
.range-row {
  grid-template-columns: 96px minmax(0, 1fr) 42px;
  gap: 7px;
  margin-top: 6px;
}
.grid-2,
.compact-grid {
  gap: 7px;
}
.palette-strip {
  max-height: min(18vh, 164px);
  min-height: 64px;
  grid-template-columns: repeat(auto-fill, minmax(18px, 1fr));
}
.palette-chip,
.palette-chip-input {
  min-width: 16px;
  min-height: 16px;
}
.compare-well {
  position: relative;
  padding: 10px;
}
.status-hud {
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: min(430px, calc(100% - 20px));
  max-height: min(34%, 142px);
  overflow: hidden;
  z-index: 30;
  padding: 7px 8px;
  gap: 4px;
  background: color-mix(in srgb, var(--wb-window-bg), transparent 8%);
  border-color: color-mix(in srgb, var(--wb-window-line), var(--wb-accent) 14%);
  box-shadow: 0 12px 38px rgba(0,0,0,.42), inset 1px 1px 0 color-mix(in srgb, var(--wb-text), transparent 92%);
  backdrop-filter: blur(4px);
  opacity: .9;
}
.status-hud:hover,
.status-hud:focus-within {
  opacity: 1;
  max-height: min(48%, 220px);
}
.status-hud .status-row {
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 7px;
  font-size: 11.5px;
  line-height: 1.25;
}
.status-hud .warning-list {
  max-height: 46px;
  overflow: hidden;
}
.status-hud .wb-alert {
  padding: 4px 5px;
  font-size: 11px;
}
@media (max-height: 800px) {
  .control-column { padding: 8px; gap: 7px; }
  .wb-section { padding: 7px; }
  details.wb-section { padding: 6px 7px 7px; }
  summary { font-size: 12px; }
  .section-head p,
  .wb-field,
  .range-row span,
  .range-row output,
  .check-row,
  .viewport-check,
  .viewport-range,
  .fps-control { font-size: 11px; }
  .range-row { grid-template-columns: 84px minmax(0, 1fr) 36px; gap: 6px; margin-top: 4px; }
  .palette-strip { max-height: 96px; min-height: 48px; }
  .status-hud { max-height: 118px; width: min(390px, calc(100% - 20px)); }
}
@media (max-width: 1180px) {
  .workspace {
    --left-panel-w: clamp(260px, 24vw, 340px);
    --right-panel-w: clamp(280px, 25vw, 360px);
    grid-template-columns: var(--left-panel-w) var(--panel-resizer-w) minmax(300px, 1fr) var(--panel-resizer-w) var(--right-panel-w);
  }
}
@media (max-width: 900px) {
  .workspace {
    --left-panel-w: 250px;
    --right-panel-w: 260px;
    grid-template-columns: var(--left-panel-w) var(--panel-resizer-w) minmax(300px, 1fr) var(--panel-resizer-w) var(--right-panel-w);
  }
  .panel-resizer { min-width: 8px; }
}
.status-hud {
  display: grid;
  grid-template-columns: 1fr;
  pointer-events: none;
}
.status-hud .warning-list {
  grid-column: auto;
}
.jpxlr-app.has-images .hero-section {
  display: none;
}

.effect-subgroup {
  display: grid;
  gap: 6px;
  margin: 6px 0 8px;
  padding: 7px;
  border: 1px solid color-mix(in srgb, var(--wb-line), transparent 32%);
  background: color-mix(in srgb, var(--wb-panel-2), transparent 28%);
  box-shadow: inset 1px 1px 0 color-mix(in srgb, var(--wb-text), transparent 94%);
}
.effect-subgroup[hidden] {
  display: none !important;
}
.gradient-stops {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 7px;
}
.gradient-stops .wb-field {
  min-width: 0;
}
.gradient-stops input[type="color"] {
  min-height: 34px;
}
@media (max-height: 800px) {
  .effect-subgroup { gap: 4px; margin: 4px 0 6px; padding: 5px; }
  .gradient-stops { gap: 4px; }
}

.palette-counts {
  margin: 6px 0 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--wb-muted);
  border: 1px solid var(--wb-line);
  background: color-mix(in srgb, var(--wb-input), transparent 18%);
  padding: 5px 6px;
}
.palette-subhead {
  margin: 10px 0 3px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--wb-accent);
  text-transform: uppercase;
  letter-spacing: .05em;
}
.local-palette-head { color: var(--wb-info); }
.palette-strip.is-empty::before {
  content: attr(data-empty-label);
  grid-column: 1 / -1;
  color: var(--wb-muted);
  font-size: 11px;
  padding: 4px;
}
.palette-color-card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  min-width: 40px;
  border: 1px solid color-mix(in srgb, var(--wb-line-2), black 18%);
  background: var(--wb-panel-2);
  padding: 3px;
}
.palette-color-card.is-selected {
  outline: 2px solid var(--wb-accent);
  outline-offset: -1px;
}
.palette-color-card.is-locked {
  border-color: var(--wb-warn);
}
.palette-color-card input[type="color"] {
  width: 100%;
  min-height: 24px;
  aspect-ratio: 1.25;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}
.palette-color-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.palette-color-actions button,
.palette-color-badge {
  min-height: 18px;
  padding: 0 2px;
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1;
  border: 1px solid var(--wb-line);
  background: var(--wb-input);
  color: var(--wb-muted);
}
.palette-color-actions button:hover { color: var(--wb-text); border-color: var(--wb-accent); }
.palette-color-badge {
  display: grid;
  place-items: center;
  pointer-events: none;
}
.palette-strip-shared,
.palette-strip-local {
  grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
  max-height: min(22vh, 210px);
}
.compare-well.is-picking-color,
.compare-stage.is-picking-color { cursor: crosshair; }
.compare-well.is-picking-color .compare-slider { pointer-events: none; }
.compare-well.is-picking-color::after {
  content: attr(data-pick-label);
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 32;
  padding: 5px 7px;
  color: var(--wb-text);
  background: color-mix(in srgb, var(--wb-window-bg), transparent 6%);
  border: 1px solid var(--wb-accent);
  font-family: var(--mono);
  font-size: 11px;
  pointer-events: none;
}


/* jpxlr step 18: sticky viewport color picker preview chip. */
.jpxlr-picker-preview {
  position: fixed;
  pointer-events: none;
  z-index: 10000;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 7px;
  border: 1px solid var(--wb-line-2);
  background: var(--wb-panel);
  color: var(--wb-text);
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
  font: 12px ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  user-select: none;
  -webkit-user-select: none;
}
.jpxlr-picker-preview[hidden] { display: none !important; }
.jpxlr-picker-preview-swatch {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  border: 1px solid rgba(255,255,255,.35);
  background: var(--picked-color, #000);
}
.jpxlr-picker-preview-hex {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* jpxlr step 17: app-like interaction chrome, palette context menus, and direct value entry. */
.jpxlr-app,
.jpxlr-app button,
.jpxlr-app label,
.jpxlr-app .control-column,
.jpxlr-app .preview-column,
.jpxlr-app .viewport-toolbar,
.jpxlr-app .status-hud,
.jpxlr-app .palette-strip,
.jpxlr-app .palette-color-card,
.jpxlr-app .jpxlr-context-menu,
.jpxlr-app .batch-list,
.jpxlr-app .panel-resizer,
.jpxlr-context-menu,
.jpxlr-picker-preview {
  user-select: none;
  -webkit-user-select: none;
}

.jpxlr-app input[type="text"],
.jpxlr-app input[type="number"],
.jpxlr-app input[type="search"],
.jpxlr-app input[type="url"],
.jpxlr-app input[type="email"],
.jpxlr-app input[type="tel"],
.jpxlr-app input:not([type]),
.jpxlr-app textarea,
.jpxlr-app [contenteditable="true"],
.jpxlr-app .copyable-text,
.jpxlr-app .preset-json,
.jpxlr-app .export-log {
  user-select: text;
  -webkit-user-select: text;
}

.range-row,
.viewport-range {
  grid-template-columns: minmax(70px, 96px) minmax(0, 1fr) 4.4rem;
  gap: 7px;
  align-items: center;
}
.range-row input[type="range"],
.viewport-range input[type="range"] {
  min-width: 0;
}
.range-value-input {
  width: 4.4rem !important;
  min-width: 0;
  max-width: 4.4rem;
  text-align: right;
  font-family: var(--mono);
  color: var(--wb-accent) !important;
  padding-inline: 4px !important;
  font-variant-numeric: tabular-nums;
}
.range-value-input:focus {
  outline: 1px solid var(--wb-accent);
  outline-offset: 1px;
}

.palette-strip.editable {
  grid-template-columns: repeat(auto-fill, minmax(24px, 1fr));
  align-items: stretch;
}
button.palette-color-card {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 1;
  min-width: 22px;
  min-height: 22px;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--wb-line-2), black 18%);
  background: var(--wb-panel-2);
  box-shadow: none;
  cursor: pointer;
  overflow: hidden;
}
button.palette-color-card:active {
  transform: none;
}
button.palette-color-card:hover,
button.palette-color-card:focus-visible {
  border-color: var(--wb-accent);
  outline: none;
}
.palette-color-card.is-selected {
  outline: 2px solid var(--wb-accent);
  outline-offset: -2px;
  z-index: 1;
}
.palette-color-card.is-locked {
  border-color: var(--wb-warn);
}
.palette-color-swatch {
  position: absolute;
  inset: 0;
  display: block;
  background: var(--swatch-color, #000);
}
.palette-color-badge,
.palette-lock-indicator {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  min-width: 12px;
  min-height: 12px;
  padding: 0 2px;
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1;
  color: var(--wb-text);
  background: rgba(0, 0, 0, .58);
  pointer-events: none;
}
.palette-color-badge {
  left: 1px;
  bottom: 1px;
}
.palette-lock-indicator {
  right: 1px;
  top: 1px;
  color: var(--wb-warn);
}
.palette-color-actions {
  display: none !important;
}

.jpxlr-context-menu {
  position: fixed;
  min-width: 168px;
  z-index: 8000;
  display: grid;
  gap: 2px;
  padding: 5px;
  background: var(--wb-window-bg);
  border: 1px solid var(--wb-window-line);
  box-shadow: 0 14px 44px rgba(0,0,0,.48), inset 1px 1px 0 color-mix(in srgb, var(--wb-text), transparent 92%);
  font-family: var(--mono);
}
.jpxlr-context-menu button {
  justify-content: flex-start;
  width: 100%;
  min-height: 25px;
  padding: 4px 8px;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  text-align: left;
}
.jpxlr-context-menu button:hover,
.jpxlr-context-menu button:focus-visible {
  border-color: var(--wb-accent);
  background: color-mix(in srgb, var(--wb-accent), transparent 84%);
  outline: none;
}
.jpxlr-context-menu button:disabled {
  opacity: .42;
  cursor: not-allowed;
}
.jpxlr-context-menu button:active {
  transform: none;
}
.context-menu-separator {
  height: 1px;
  margin: 3px 2px;
  background: var(--wb-line-2);
}

@media (max-height: 800px) {
  .range-row,
  .viewport-range {
    grid-template-columns: minmax(58px, 84px) minmax(0, 1fr) 3.8rem;
    gap: 5px;
  }
  .range-value-input {
    width: 3.8rem !important;
    max-width: 3.8rem;
  }
  .palette-strip.editable {
    grid-template-columns: repeat(auto-fill, minmax(20px, 1fr));
  }
}

@media (max-width: 1180px) {
  .range-row,
  .viewport-range {
    grid-template-columns: minmax(54px, 78px) minmax(0, 1fr) 3.6rem;
  }
  .range-value-input {
    width: 3.6rem !important;
    max-width: 3.6rem;
  }
}

.palette-section button.is-active {
  border-color: var(--wb-accent);
  color: var(--wb-accent);
  background: color-mix(in srgb, var(--wb-select), transparent 22%);
}


/* jpxlr step 20: panel wheel scrolling, hidden diagnostics, viewport middle-drag pan, and timeline palette menus. */
.control-column {
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: none;
}
.control-column::-webkit-scrollbar,
.palette-strip::-webkit-scrollbar,
.batch-list::-webkit-scrollbar {
  width: 0;
  height: 0;
}
.control-column .controls-form,
.controls-form {
  flex: 0 0 auto;
  overflow: visible;
  padding-bottom: 12px;
}
.status-hud {
  display: none !important;
}
body.show-diagnostics .status-hud:not([hidden]) {
  display: grid !important;
}
.status-hud[hidden] {
  display: none !important;
}
.compare-stage {
  transform: translate(var(--viewport-pan-x, 0px), var(--viewport-pan-y, 0px));
  will-change: width, height, transform;
}
.compare-well {
  cursor: grab;
}
.compare-well.is-viewport-panning,
.compare-well.is-viewport-panning .compare-stage,
.compare-stage.is-viewport-panning,
body.is-viewport-panning {
  cursor: grabbing !important;
}
body.is-viewport-panning {
  user-select: none;
  -webkit-user-select: none;
}
body.is-viewport-panning .compare-slider {
  pointer-events: none;
}
.batch-item[data-context-menu="batch-image"] {
  cursor: pointer;
}
.batch-item.has-local-palette .batch-index {
  position: relative;
}
.batch-item.has-local-palette .batch-index::after {
  content: "L";
  position: absolute;
  right: -4px;
  bottom: -4px;
  display: grid;
  place-items: center;
  min-width: 12px;
  height: 12px;
  padding: 0 2px;
  border: 1px solid var(--wb-info);
  background: var(--wb-input);
  color: var(--wb-info);
  font-size: 8px;
  line-height: 1;
}
.batch-context-menu {
  min-width: min(320px, calc(100vw - 16px));
}
.batch-context-menu button {
  white-space: normal;
}

/* Site integration extras. */
.jpxlr-home-link,
.jpxlr-license-summary { white-space: nowrap; }
.jpxlr-license-popover { position: relative; display: inline-block; }
.jpxlr-license-popover > summary { list-style: none; }
.jpxlr-license-popover > summary::-webkit-details-marker { display: none; }
.jpxlr-license-card {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: var(--wb-z-menu, 5000);
  width: min(520px, calc(100vw - 24px));
  max-height: min(520px, calc(100vh - 80px));
  overflow: auto;
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--wb-line-2);
  background: var(--wb-window-bg);
  box-shadow: var(--wb-window-shadow);
  color: var(--wb-text);
  text-align: left;
}
.jpxlr-license-card h2 { margin: 0; color: var(--wb-accent); font: 700 13px/1.25 var(--wb-mono); text-transform: uppercase; letter-spacing: .05em; }
.jpxlr-license-card p { margin: 0; color: var(--wb-muted); line-height: 1.4; }
.jpxlr-license-card code { color: var(--wb-info); font-family: var(--wb-mono); }