.studio {
  --studio-bg: #e6e7ea;
  --studio-panel: var(--card);
  --studio-panel-border: var(--border);
  --studio-artboard-shadow: 0 1px 4px var(--border);
  --studio-guide: #00a8c6;
  --studio-smart-guide: #d81b60;
  --studio-ruler-bg: var(--card);
  --studio-ruler-text: var(--text);
  --studio-tool-active: var(--accent-subtle);

  box-sizing: border-box;
  display: grid;
  grid-template:
    "menubar menubar menubar" 34px
    "toolbar stage panels" minmax(0, 1fr)
    "statusbar statusbar statusbar" 26px
    / 44px minmax(0, 1fr) 280px;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-width: 0;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  color: var(--text);
  background: var(--studio-bg);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.4;
}

[data-theme="dark"] .studio {
  --studio-bg: #202124;
  --studio-panel: #292a2d;
  --studio-panel-border: #3c4043;
  --studio-artboard-shadow: 0 1px 4px #111214;
  --studio-guide: #26c6da;
  --studio-smart-guide: #ff4081;
  --studio-ruler-bg: #252629;
  --studio-ruler-text: #bdc1c6;
  --studio-tool-active: #35363a;
}

.studio *,
.studio *::before,
.studio *::after {
  box-sizing: inherit;
}

.studio button,
.studio input,
.studio select,
.studio textarea {
  max-width: 100%;
  color: var(--text);
  font: inherit;
}

.studio button,
.studio input,
.studio select,
.studio textarea,
.studio summary,
.studio [tabindex] {
  border-radius: var(--radius-sm);
}

.studio button,
.studio input:not([type="range"]):not([type="checkbox"]):not([type="radio"]),
.studio select,
.studio textarea {
  min-height: 28px;
  border: 1px solid var(--studio-panel-border);
  background: var(--studio-panel);
}

.studio button {
  padding: 4px 8px;
  cursor: pointer;
}

.studio button:hover:not(:disabled) {
  background: var(--studio-bg);
}

.studio button:disabled,
.studio input:disabled,
.studio select:disabled,
.studio textarea:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.studio input,
.studio select,
.studio textarea {
  padding: 4px 6px;
}

.studio textarea {
  min-height: 56px;
  resize: vertical;
}

.studio input[type="checkbox"],
.studio input[type="radio"],
.studio input[type="range"] {
  accent-color: var(--accent);
}

.studio input[type="color"] {
  width: 32px;
  min-width: 32px;
  height: 28px;
  padding: 2px;
  cursor: pointer;
}

.studio input[type="number"] {
  min-width: 0;
}

.studio :where(
  button,
  input,
  select,
  textarea,
  summary,
  [tabindex]
):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.studio svg {
  display: block;
  fill: none;
  stroke: currentColor;
}

.studio svg [fill]:not([fill="none"]) {
  fill: currentColor;
}

.studio [hidden] {
  display: none !important;
}

#studio-menubar {
  position: relative;
  z-index: 40;
  grid-area: menubar;
  display: flex;
  align-items: center;
  min-width: 0;
  padding: 0 6px;
  border-bottom: 1px solid var(--studio-panel-border);
  background: var(--studio-panel);
}

#studio-menubar details {
  position: relative;
  height: 100%;
}

#studio-menubar summary {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 9px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

#studio-menubar summary::-webkit-details-marker {
  display: none;
}

#studio-menubar summary:hover,
#studio-menubar details[open] > summary {
  background: var(--studio-bg);
}

#studio-menubar [data-menu] {
  position: absolute;
  top: calc(100% - 1px);
  left: 0;
  z-index: 50;
  width: max-content;
  min-width: 210px;
  max-height: min(70vh, 520px);
  margin: 0;
  padding: 4px;
  overflow: auto;
  list-style: none;
  border: 1px solid var(--studio-panel-border);
  border-radius: var(--radius-sm);
  background: var(--studio-panel);
}

#studio-menubar [data-menu] li {
  margin: 0;
  padding: 0;
}

#studio-menubar [data-menu] button,
#studio-menubar [data-menu] [data-action] {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  width: 100%;
  min-height: 28px;
  padding: 4px 8px;
  border-color: var(--studio-panel);
  text-align: left;
  white-space: nowrap;
}

#studio-menubar [data-menu] button:hover,
#studio-menubar [data-menu] [data-action]:hover {
  border-color: var(--studio-bg);
  background: var(--studio-bg);
}

#studio-toolbar {
  position: relative;
  z-index: 20;
  grid-area: toolbar;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 0;
  min-height: 0;
  padding: 5px 4px;
  overflow-x: hidden;
  overflow-y: auto;
  border-right: 1px solid var(--studio-panel-border);
  background: var(--studio-panel);
}

#studio-toolbar button {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 34px;
  height: 34px;
  min-height: 34px;
  padding: 0;
  border-color: var(--studio-panel);
  color: var(--text);
  background: var(--studio-panel);
}

#studio-toolbar button:hover:not(:disabled) {
  border-color: var(--studio-panel-border);
  background: var(--studio-bg);
}

#studio-toolbar button.active,
#studio-toolbar button.is-active,
#studio-toolbar button[aria-pressed="true"],
#studio-toolbar button[data-active="true"] {
  border-color: var(--studio-tool-active);
  color: var(--accent);
  background: var(--studio-tool-active);
}

#studio-toolbar svg {
  width: 18px;
  height: 18px;
}

#studio-stage {
  position: relative;
  isolation: isolate;
  grid-area: stage;
  display: grid;
  grid-template:
    "corner ruler-top" 18px
    "ruler-left host" minmax(0, 1fr)
    / 18px minmax(0, 1fr);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--studio-bg);
}

#studio-ruler-corner {
  grid-area: corner;
  border-right: 1px solid var(--studio-panel-border);
  border-bottom: 1px solid var(--studio-panel-border);
  background: var(--studio-ruler-bg);
}

#studio-ruler-top {
  grid-area: ruler-top;
  width: 100%;
  height: 18px;
  border-bottom: 1px solid var(--studio-panel-border);
  background: var(--studio-ruler-bg);
  color: var(--studio-ruler-text);
}

#studio-ruler-left {
  grid-area: ruler-left;
  width: 18px;
  height: 100%;
  border-right: 1px solid var(--studio-panel-border);
  background: var(--studio-ruler-bg);
  color: var(--studio-ruler-text);
}

#studio-ruler-top,
#studio-ruler-left {
  display: block;
  touch-action: none;
}

#studio-host {
  position: relative;
  grid-area: host;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--studio-bg);
  touch-action: none;
}

#studio-host > .canvas-container {
  position: absolute !important;
  inset: 0;
}

#studio-canvas,
#studio-overlay {
  display: block;
}

#studio-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  pointer-events: none;
}

#studio-panels {
  position: relative;
  z-index: 30;
  grid-area: panels;
  min-width: 0;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  border-left: 1px solid var(--studio-panel-border);
  background: var(--studio-panel);
  scrollbar-gutter: stable;
}

.studio-panel {
  min-width: 0;
  border-bottom: 1px solid var(--studio-panel-border);
  background: var(--studio-panel);
}

.studio-panel > h2 {
  display: flex;
  align-items: center;
  min-height: 34px;
  margin: 0;
  padding: 7px 10px;
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  user-select: none;
}

.studio-panel > h2:hover {
  background: var(--studio-bg);
}

.studio-panel > h2::after {
  width: 7px;
  height: 7px;
  margin-left: auto;
  border-right: 1px solid var(--text);
  border-bottom: 1px solid var(--text);
  content: "";
  transform: rotate(45deg);
  transform-origin: center;
}

.studio-panel.collapsed > h2::after,
.studio-panel.is-collapsed > h2::after,
.studio-panel[data-collapsed="true"] > h2::after,
.studio-panel > h2[aria-expanded="false"]::after {
  transform: rotate(-45deg);
}

.studio-panel.collapsed > :not(h2),
.studio-panel.is-collapsed > :not(h2),
.studio-panel[data-collapsed="true"] > :not(h2) {
  display: none;
}

.studio-panel > :not(h2) {
  min-width: 0;
}

.studio-panel form,
.studio-panel fieldset {
  min-width: 0;
  margin: 0;
}

.studio-panel fieldset {
  padding: 8px 10px;
  border: 0;
}

.studio-panel label {
  min-width: 0;
}

.studio-panel ul,
.studio-panel ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.studio-panel table {
  width: 100%;
  border-collapse: collapse;
}

.studio-panel th,
.studio-panel td {
  padding: 4px;
  border-bottom: 1px solid var(--studio-panel-border);
  text-align: left;
}

.studio-panel button {
  min-width: 28px;
}

.studio-panel button.active,
.studio-panel button.is-active,
.studio-panel button[aria-pressed="true"],
.studio-panel [aria-selected="true"] {
  color: var(--accent);
  background: var(--studio-tool-active);
}

#panel-character[hidden] {
  display: none !important;
}

#studio-statusbar {
  position: relative;
  z-index: 45;
  grid-area: statusbar;
  display: grid;
  grid-template-columns: auto auto auto minmax(0, 1fr);
  align-items: center;
  min-width: 0;
  border-top: 1px solid var(--studio-panel-border);
  background: var(--studio-panel);
  font-size: 11px;
}

#studio-statusbar > * {
  min-width: 0;
  padding: 0 9px;
  overflow: hidden;
  border-right: 1px solid var(--studio-panel-border);
  text-overflow: ellipsis;
  white-space: nowrap;
}

#studio-statusbar > :last-child {
  border-right: 0;
}

#status-zoom {
  height: 25px;
  min-height: 25px;
  border-width: 0 1px 0 0;
  border-radius: 0;
  background: var(--studio-panel);
}

#status-zoom:hover {
  background: var(--studio-bg);
}

#status-msg {
  text-align: right;
}

#studio-toast {
  position: fixed;
  left: 12px;
  bottom: 38px;
  z-index: 100;
  max-width: min(360px, calc(100vw - 24px));
  padding: 8px 12px;
  border: 1px solid var(--studio-panel-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--studio-panel);
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition:
    opacity var(--transition),
    transform var(--transition);
}

#studio-toast.active,
#studio-toast.is-visible,
#studio-toast[data-visible="true"] {
  opacity: 1;
  transform: translateY(0);
}

#studio-toast[data-kind="error"],
#studio-toast.error {
  border-color: var(--danger);
}

#studio-toast[data-kind="success"],
#studio-toast.success {
  border-color: var(--success);
}

#studio-toast[data-kind="info"],
#studio-toast.info {
  border-color: var(--accent);
}

#studio-open-input {
  position: fixed;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

#studio-panels-toggle {
  display: none;
}

@media (max-width: 1023px) {
  .studio {
    grid-template:
      "menubar menubar" 34px
      "toolbar stage" minmax(0, 1fr)
      "statusbar statusbar" 26px
      / 44px minmax(0, 1fr);
  }

  #studio-panels-toggle {
    display: grid;
    place-items: center;
    width: 30px;
    min-width: 30px;
    height: 28px;
    min-height: 28px;
    margin-left: auto;
    padding: 0;
  }

  #studio-panels {
    position: fixed;
    right: 0;
    bottom: 26px;
    left: 44px;
    z-index: 60;
    width: auto;
    max-height: min(48vh, 420px);
    border-top: 1px solid var(--studio-panel-border);
    border-left: 1px solid var(--studio-panel-border);
    visibility: hidden;
    pointer-events: none;
    transform: translateY(100%);
    transition:
      transform var(--transition),
      visibility var(--transition);
  }

  .studio:has(#studio-panels-toggle[aria-expanded="true"]) #studio-panels,
  .studio.panels-open #studio-panels,
  .studio.studio-panels-open #studio-panels,
  #studio-panels.open,
  #studio-panels.is-open,
  #studio-panels[data-open="true"] {
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .studio *,
  .studio *::before,
  .studio *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}
/* Panel internals (phase 1 polish, appended 2026-09-06) */
 
.studio .studio-panel > h2 + * {
  margin-top: 0;
}

:where(.studio .studio-panel button) {
  appearance: none;
  background: none;
  border: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

.studio .studio-panel-body {
  padding: 8px 10px;
}

.studio .studio-panel-body-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 8px;
}

.studio .studio-field {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  margin: 0 0 6px;
  font-size: 12px;
}

.studio .studio-field-label {
  color: var(--text);
  font-size: 11px;
  opacity: 0.65;
}

.studio .studio-panel input:not([type="color"]):not([type="checkbox"]),
.studio .studio-panel select {
  width: 100%;
  min-width: 0;
  height: 26px;
  min-height: 26px;
  padding: 0 6px;
  border: 1px solid var(--studio-panel-border);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--card);
  font-family: var(--font-sans);
  font-size: 12px;
}

.studio .studio-panel input:not([type="color"]):not([type="checkbox"]):focus,
.studio .studio-panel select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.studio .studio-panel input[type="color"] {
  width: 26px;
  min-width: 26px;
  height: 26px;
  min-height: 26px;
  padding: 0;
  border: 1px solid var(--studio-panel-border);
  border-radius: var(--radius-sm);
  background: none;
}

.studio .studio-properties-section {
  padding: 8px 10px;
  border-bottom: 1px solid var(--studio-panel-border);
}

.studio .studio-properties-heading {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.7;
}

.studio .studio-properties-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 8px;
}

.studio .studio-properties-field {
  display: grid;
  grid-template-columns: minmax(20px, auto) minmax(0, 1fr);
  align-items: center;
  gap: 4px;
  margin: 0;
}

.studio .studio-properties-label {
  font-size: 11px;
  text-align: right;
  white-space: nowrap;
  opacity: 0.65;
}

.studio .studio-properties-input,
.studio .studio-properties-select {
  width: 100%;
}

.studio .studio-properties-color {
  width: 26px;
  min-width: 26px;
  height: 26px;
  min-height: 26px;
  padding: 0;
  border: 1px solid var(--studio-panel-border);
  border-radius: var(--radius-sm);
  background: none;
}

.studio .studio-properties-button,
.studio .studio-swatch-editor-actions button,
.studio .studio-layer-footer button {
  height: 26px;
  min-height: 26px;
  min-width: 28px;
  padding: 0 6px;
  border: 1px solid var(--studio-panel-border);
  border-radius: var(--radius-sm);
  color: inherit;
  background: var(--card);
  font-size: 11px;
}

.studio .studio-properties-button:hover:not(:disabled),
.studio .studio-swatch-editor-actions button:hover:not(:disabled),
.studio .studio-layer-footer button:hover:not(:disabled) {
  background: var(--studio-tool-active);
}

.studio .studio-properties-button[disabled],
.studio .studio-swatch-editor-actions button[disabled],
.studio .studio-layer-footer button[disabled] {
  cursor: default;
  opacity: 0.4;
}

.studio .studio-properties-align-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.studio .studio-properties-artboard-name {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
}

.studio .studio-properties-artboard-name input {
  flex: 1;
}

.studio .studio-swatches {
  padding: 8px 10px;
}

.studio .studio-swatch-indicator {
  position: relative;
  width: 40px;
  height: 40px;
  margin-bottom: 8px;
}

.studio .studio-swatch-indicator-fill {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  width: 26px;
  height: 26px;
  border: 1px solid var(--studio-panel-border);
  background: var(--swatch-color);
}

.studio .studio-swatch-indicator-stroke {
  position: absolute;
  right: 0;
  bottom: 0;
  z-index: 1;
  box-sizing: border-box;
  width: 26px;
  height: 26px;
  border: 5px solid var(--swatch-color);
  outline: 1px solid var(--studio-panel-border);
  background: transparent;
}

.studio .studio-swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(22px, 1fr));
  gap: 6px;
}

.studio .studio-swatch-chip,
.studio .studio-swatch-add {
  width: 22px;
  min-width: 22px;
  height: 22px;
  min-height: 22px;
  padding: 0;
  border-radius: var(--radius-xs);
}

.studio .studio-swatch-chip {
  border: 1px solid var(--studio-panel-border);
  background: var(--swatch-color);
}

.studio .studio-swatch-add {
  display: grid;
  place-items: center;
  border: 1px dashed var(--studio-panel-border);
  background: transparent;
  font-size: 14px;
  line-height: 1;
}

.studio .studio-swatch-chip:hover,
.studio .studio-swatch-chip:focus-visible,
.studio .studio-swatch-add:hover,
.studio .studio-swatch-add:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.studio .studio-swatch-editor {
  display: grid;
  gap: 6px;
  margin-top: 8px;
}

.studio .studio-swatch-editor[hidden] {
  display: none;
}

.studio .studio-swatch-editor-actions {
  display: flex;
  gap: 6px;
}

.studio .studio-layers {
  padding: 4px 0;
}

.studio .studio-layer-list,
.studio .studio-layer-objects {
  margin: 0;
  padding: 0;
  list-style: none;
}

.studio .studio-layer-row {
  display: grid;
  grid-template-columns: 16px 22px 22px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 4px;
  height: 28px;
  padding: 0 8px;
}

.studio .studio-layer-row:hover {
  background: var(--studio-tool-active);
}

.studio .studio-layer-row.is-active,
.studio .studio-layer-row[aria-current="true"],
.studio .studio-layer.is-active > .studio-layer-row {
  color: var(--accent);
  background: var(--accent-subtle);
}

.studio .studio-layer-row button {
  appearance: none;
  display: grid;
  place-items: center;
  width: 22px;
  min-width: 22px;
  height: 22px;
  min-height: 22px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-xs);
  color: inherit;
  background: none;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  opacity: 0.75;
}

.studio .studio-layer-row button:hover {
  background: var(--studio-tool-active);
  opacity: 1;
}

.studio .studio-layer-row button[aria-pressed="true"] {
  color: var(--accent);
  background: none;
  opacity: 1;
}

.studio .studio-layer-name {
  overflow: hidden;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.studio .studio-layer-name-input {
  width: 100%;
  height: 22px;
  min-height: 22px;
}

.studio .studio-layer-drag-handle {
  font-size: 12px;
  cursor: grab;
  opacity: 0.45;
}

.studio .studio-layer.is-dragging {
  opacity: 0.5;
}

.studio .studio-layer-object-button {
  appearance: none;
  display: block;
  width: 100%;
  min-height: 0;
  padding: 3px 8px 3px 46px;
  overflow: hidden;
  border: 0;
  color: inherit;
  background: none;
  font: inherit;
  font-size: 12px;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.studio .studio-layer-object-button:hover {
  background: var(--studio-tool-active);
}

.studio .studio-layer-object-button.is-selected,
.studio .studio-layer-object-button[aria-selected="true"],
.studio .studio-layer-object-button[aria-pressed="true"] {
  color: var(--accent);
  background: var(--accent-subtle);
}

.studio .studio-layer-footer {
  display: flex;
  gap: 6px;
  padding: 6px 8px;
}

.studio .studio-history-list {
  margin: 0;
  padding: 4px 0;
  list-style: none;
}

.studio .studio-history-entry,
.studio .studio-history-item button,
.studio button.studio-history-item {
  appearance: none;
  display: block;
  width: 100%;
  min-height: 0;
  padding: 4px 10px;
  border: 0;
  color: inherit;
  background: none;
  font: inherit;
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}

.studio .studio-history-entry:hover,
.studio .studio-history-item button:hover,
.studio button.studio-history-item:hover {
  background: var(--studio-tool-active);
}

.studio .studio-history-entry.is-current,
.studio .studio-history-item.is-current button,
.studio .studio-history-item button.is-current,
.studio button.studio-history-item.is-current {
  color: var(--accent);
  background: var(--studio-tool-active);
  font-weight: 600;
}

.studio .studio-history-empty {
  padding: 8px 10px;
  font-size: 12px;
  opacity: 0.6;
}

/* Phase 4: raster tools */
#studio-selection-overlay {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 11;
  pointer-events: none;
}

.studio .studio-anchor-grid {
  display: grid;
  grid-template-columns: repeat(3, 20px);
  grid-auto-rows: 20px;
  gap: 2px;
}

.studio .studio-anchor-grid input[type="radio"] {
  margin: 0;
  width: 20px;
  height: 20px;
}

.studio .studio-adjust-canvas {
  display: block;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm, 4px);
  background: var(--surface);
}

.studio .studio-mask-thumb {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border);
  background-color: var(--surface);
  background-image:
    linear-gradient(45deg, var(--border) 25%, transparent 25%, transparent 75%, var(--border) 75%),
    linear-gradient(45deg, var(--border) 25%, transparent 25%, transparent 75%, var(--border) 75%);
  background-size: 8px 8px;
  background-position: 0 0, 4px 4px;
}

/* Tool options: one option per line (label, then slider + number / checkbox / chip). */
.studio #studio-tool-options-content.studio-properties-grid {
  grid-template-columns: 1fr;
}

.studio .studio-tool-options-row {
  display: grid;
  grid-template-columns: minmax(72px, auto) 1fr;
  gap: 8px;
  align-items: center;
  padding: 2px 0;
}

/* Specificity matches the .studio .studio-panel input rule above, so these win by order. */
.studio .studio-panel .studio-tool-options-row .studio-properties-align-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.studio .studio-panel .studio-tool-options-row input[type="range"]:not([type="color"]):not([type="checkbox"]) {
  flex: 1 1 auto;
  width: auto;
  min-width: 0;
  height: auto;
  min-height: 0;
  padding: 0;
  border: 0;
  background: none;
}

.studio .studio-panel .studio-tool-options-row input[type="number"]:not([type="color"]):not([type="checkbox"]) {
  flex: 0 0 56px;
  width: 56px;
}

.studio .studio-tool-options-row input[type="checkbox"] {
  justify-self: start;
}

/* Adjustments stack rows: checkbox, title, Up / Down / Delete on one line. */
.studio #panel-adjustments li {
  list-style: none;
  padding: 4px 0;
}

.studio #panel-adjustments li > .studio-properties-align-row {
  flex-wrap: nowrap;
  align-items: center;
  gap: 4px;
}

.studio #panel-adjustments li > .studio-properties-align-row > input[type="checkbox"] {
  width: auto;
  flex: 0 0 auto;
  margin: 0;
}

.studio #panel-adjustments li > .studio-properties-align-row > button {
  white-space: nowrap;
  min-width: 0;
  padding: 0 5px;
}

.studio #panel-adjustments li > .studio-properties-align-row > button:first-of-type {
  flex: 1 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
}

/* Toolbar hover label (rendered on body so the toolbar's overflow cannot clip it). */
#studio-tooltip {
  position: fixed;
  z-index: 110;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  color: var(--card);
  background: var(--text);
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1.3;
  white-space: nowrap;
  pointer-events: none;
  transform: translateY(-50%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
}

#studio-tooltip[hidden] {
  display: none;
}