/* Color SynthAxis styles.
 * Controls use --control-normal (30px) or --control-compact (18px).
 * Repeated selectors remain only where intervening rules require cascade order.
 * Responsive and component-specific overrides stay in their original scope.
 */
:root {
  font-family: Inter,"Segoe UI",Arial,sans-serif;
  color: #272d2b;
  background: #000000;
  font-synthesis: none;
  font-size: 13px;
  --ink: #273d35;
  --line: #d9ddd6;
  --paper: #fffefa;
  --accent: #275848;
  --control-normal: 30px;
  --control-compact: 18px;
  --control-selected: #E1EC92;
  --control-disabled-opacity: .38;
  --control-radius: 4px;
  --panel-max-width: 320px;
  --transition-duration: .3s;
  --space-small: 4px;
  --space-normal: 8px;
  --panel-spacing: var(--space-normal);
  --interpolation-label-width: 26px;
  /* Six 30px buttons, their gaps and label, plus panel padding and borders. */
  --panel-compact-width: calc(6 * var(--control-normal) + 6 * var(--space-small) + var(--interpolation-label-width) + 2 * var(--panel-spacing) + 2px);
  --icon-padding-scale: 1.4;
  --connector-icon-size: 22px;
  --connector-text-icon-scale: .85;
}

/* Semantic page title; the visible branding is the graphical logo. */
.page-heading {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  overflow: hidden;
}

button, input, select {
  font: inherit;
}

/* Long presses belong to the controls, not the browser's text selection UI. */
button, button * {
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
  color: inherit;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: var(--control-radius);
  padding: 7px 11px;
  transition: background var(--transition-duration),border-color var(--transition-duration);
}

button:enabled:hover {
  background: #e9eee7;
  border-color: #9aa99e;
}

button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid #549876;
  outline-offset: 2px;
}

button:disabled {
  opacity: var(--control-disabled-opacity);
  cursor: default;
}

input, select {
  color: inherit;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  padding: 5px;
  min-width: 0;
}

input[type=range] {
  padding: 0;
  accent-color: #527b65;
  height: 16px;
  cursor: ew-resize;
}

input[type=range]:disabled {
  cursor: not-allowed;
  opacity: .5;
}

input[type=color] {
  padding: 0;
  width: 24px;
  height: 24px;
  border: 0;
  cursor: pointer;
}

header {
  height: 82px;
  background: #fcfbf7;
  border-bottom: 1px solid #dedfd8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 34px;
  position: relative;
  z-index: 10;
  gap: 20px;
}

.brand {
  display: flex;
  gap: var(--space-normal);
  align-items: center;
  color: var(--ink);
  text-decoration: none;
  font-size: 22px;
  letter-spacing: -1px;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-normal);
}

.toolbar button {
  font-size: 12px;
}

.toolbar button[data-cmd=undo], .toolbar button[data-cmd=redo] {
  font-size: 20px;
  padding: 2px 9px;
}

.round {
  border-radius: 50%;
  width: 29px;
  padding: 5px;
}

#viewport {
  overflow: hidden;
  position: relative;
  background-image: radial-gradient(#59665315 .7px,transparent .7px);
  background-size: 20px 20px;
  touch-action: none;
}

h1 {
  font-family: Georgia,"Times New Roman",serif;
  font-size: 35px;
  font-weight: 400;
  letter-spacing: -1px;
  margin: 8px 0;
  color: #33443b;
}

#world {
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: 0 0;
  width: 0;
  height: 0;
}

#connections {
  position: absolute;
  overflow: visible;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

#connections path {
  fill: none;
  stroke-width: 1.6;
}

#connections text {
  font-size: 9px;
  fill: #7c8c80;
  font-weight: 600;
}

.interpolation {
  stroke: #8f9f91;
}

.restriction {
  stroke: #709782;
}

.restriction.fault {
  stroke: #bc6851;
  stroke-dasharray: 8 6;
}

.node {
  position: absolute;
  user-select: none;
  z-index: 2;
}

.node.mode-1, .node.mode-2 {
  z-index: 4;
}

.node-caption {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 0;
  width: 100%;
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
  line-height: 1.25;
  font-size: 10px;
  letter-spacing: .2px;
  color: #5f6b62;
}

.swatch {
  display: block;
  border: 0;
  width: 108px;
  height: 108px;
  padding: 0;
  position: relative;
  overflow: hidden;
  background: transparent;
  cursor: grab;
}

.swatch:enabled:hover {
  background: transparent;
}

.node-meta {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

.kind {
  font-size: 7px;
  color: #7c877d;
  padding-top: 2px;
}

.node.mode-0 .node-meta{
  display: none;
}

.node.mode-0 .node-caption {
  opacity: .65;
}

.stop {
  display: block;
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  padding: 4px 9px;
  border-radius: var(--control-radius);
  white-space: nowrap;
  color: #6b786c;
  cursor: ew-resize;
  background: #f9f9f0e6;
  touch-action: none;
}

.stop.anchored {
  background: #e0e9dd;
  color: #315c42;
  border-color: #9caf99;
}

.node-indicator {
  position: absolute;
  top: 6px;
  right: 6px;
  background: #fffbe9;
  color: #8b641e;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  font-size: 12px;
  font-weight: bold;
  line-height: 19px;
}

.node-indicator:empty {
  display: none;
}

.state-pending .swatch, .state-conflict .swatch {
  animation: warning 1.4s infinite;
}

.state-blocked .swatch {
  outline: 2px dashed #a09587;
  outline-offset: 4px;
}

.state-adjusted .node-indicator {
  background: #e4efda;
  color: #486741;
}

@keyframes warning {
  0%, 100% {
    outline: 3px solid #dc9a54;
    outline-offset: 4px;
  }

  50% {
    outline: 3px solid #fff8d8;
    outline-offset: 4px;
  }
} .receiver {
  position: absolute;
  padding: 0;
  border-radius: 50%;
  background: #f8f8f1;
  box-shadow: 0 0 0 5px #f3f1ec88;
}

.receiver {
  width: var(--control-normal);
  height: var(--control-normal);
  font-size: 16px;
  color: #6a856c;
}

.editor, .group-editor {
  position: absolute;
  z-index: 8;
  width: var(--panel-max-width);
  background: #fffefa;
  border: 1px solid #d8ddd3;
  border-radius: 0;
  box-shadow: 0 12px 45px #263b2420;
  max-height: 75vh;
  overflow: auto;
  overscroll-behavior: contain;
  touch-action: auto;
}

.editor-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: var(--space-normal);
}

.editor-title input {
  font-weight: 600;
  border: 0;
  padding: 0;
  width: 100%;
}

.editor-title button {
  border: 0;
  padding: 0 4px;
  background: transparent;
  font-size: 20px;
  color: #7c8679;
}

.code-field {
  display: flex;
  align-items: center;
  gap: var(--space-normal);
  background: #f0f2eb;
  border-radius: var(--control-radius);
  padding: 4px 8px;
  margin-bottom: 12px;
}

.code-field span {
  color: #85907e;
}

.code-field input {
  width: 100%;
  font-family: Consolas,monospace;
  border: 0;
  background: transparent;
  letter-spacing: 1px;
}

.code-field button {
  border: 0;
  background: transparent;
  padding: 3px;
}

.component>span {
  font-weight: 600;
  color: #65705f;
}

.component input[type=number] {
  text-align: right;
  border-color: transparent;
}

.component input::-webkit-inner-spin-button {
  appearance: none;
}

.component input[type=number]:hover {
  border-color: var(--line);
}

.force {
  border: 0;
  background: transparent;
  padding: 1px;
  font-size: 17px;
  color: #77916f;
}

.component:nth-child(4), .component:nth-child(7), .component:nth-child(11) {
  border-top: 1px solid #e7e9e1;
  padding-top: 8px;
  margin-top: 10px;
}

.component:nth-child(1) input {
  accent-color: #c96556;
}

.component:nth-child(2) input {
  accent-color: #7a9d68;
}

.component:nth-child(3) input {
  accent-color: #7773b8;
}

.operation-row {
  display: flex;
  gap: var(--space-small);
  border-top: 1px solid var(--line);
  padding-top: 12px;
  margin-top: 12px;
}

.operation-row select {
  width: 62%;
  font-size: 10px;
}

.operation-row button {
  font-size: 10px;
  padding: 6px;
}

.delete {
  border: 0;
  color: #9b6f61;
  background: transparent;
  font-size: 10px;
  padding: 7px 0;
  margin-top: 6px;
}

.rule-item {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  min-width: 0;
  gap: var(--panel-spacing);
  background: #f2f4eb;
  padding: var(--panel-spacing);
  border-radius: var(--control-radius);
  margin-top: var(--panel-spacing);
  font-size: 10px;
}

.rule-item>div {
  margin: 0;
}

.rule-item>div>button {
  float: right;
  padding: 0 3px;
  border: 0;
  background: transparent;
}

.rule-item label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-small);
  margin: 0;
}

.rule-values {
  align-items: center;
}

.rule-item input {
  width: 52px;
  background: #fff;
  font-size: 10px;
}

.rule-item small {
  display: block;
  margin-top: 6px;
  color: #75836e;
}

.rule-item>button {
  padding: 2px 7px;
}

.group-editor>label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-normal);
  font-size: 11px;
  margin: 9px 0;
}

.group-editor select {
  width: 170px;
  font-size: 11px;
}

.group-editor input[data-count] {
  width: 55px;
}

.group-editor>button {
  font-size: 10px;
}

.stops-list {
  display: grid;
  grid-auto-rows: var(--control-compact);
  row-gap: 2px;
  align-content: start;
  width: 100%;
  max-width: 100%;
  max-height: 180px;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-gutter: stable;
  padding-right: var(--space-small);
  margin: var(--space-normal) 0;
}

.canvas-controls {
  right: 28px;
  display: flex;
  background: #fffefae8;
  border: 1px solid #dde1d7;
  border-radius: var(--control-radius);
  z-index: 9;
}

.canvas-controls button {
  border: 0;
  padding: 3px 8px;
  background: transparent;
}

.canvas-controls label {
  display: flex;
  align-items: center;
  gap: var(--space-normal);
  color: #788373;
  font-size: 11px;
}

footer {
  height: 37px;
  background: #fcfbf7;
  border-top: 1px solid #dedfd8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  color: #7c857c;
  font-size: 10px;
  gap: 20px;
}

#mode-banner {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 12;
  background: #304f3e;
  color: white;
  border-radius: var(--control-radius);
  padding: 10px 16px;
  box-shadow: 0 5px 20px #0002;
  white-space: nowrap;
  font-size: 12px;
}

#mode-banner button {
  margin-left: 16px;
  color: white;
  border: 0;
  background: #ffffff18;
  font-size: 10px;
}

#toast {
  position: fixed;
  top: 0;
  left: 0;
  background: #2b4034;
  color: #fff;
  padding: 11px 20px;
  border-radius: var(--control-radius);
  opacity: 0;
  pointer-events: none;
  z-index: 2147483646;
  transition: opacity var(--transition-duration);
  max-width: min(360px, calc(100vw - 16px));
}

#toast.show {
  opacity: 1;
}

#empty {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  color: #89917f;
}

.muted {
  color: #889180 !important;
  font-size: 10px !important;
}

@media (max-width:1000px) {
  .brand {
    font-size: 19px;
  }
}

@media (prefers-reduced-motion:reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }

  .state-pending .swatch, .state-conflict .swatch {
    outline: 3px solid #c7894a;
    outline-offset: 4px;
  }
}

#connections path.fault {
  stroke: #bc6851;
  stroke-dasharray: 8 6;
}

.link-control {
  position: absolute;
  transform: translate(-50%,-50%);
  z-index: 5;
  width: var(--control-normal);
  min-width: var(--control-normal);
  max-width: var(--control-normal);
  height: var(--control-normal);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 600;
  color: #507660;
  background: #fffefa;
  box-shadow: 0 0 0 3px #f3f1ec88;
}

.link-control.fault {
  border-color: #bc6851;
  color: #a65b46;
}

.link-editor {
  position: absolute;
  z-index: 10;
  width: var(--panel-compact-width);
  background: #fffefa;
  border: 1px solid #d8ddd3;
  border-radius: 0;
  box-shadow: 0 10px 35px #263b2420;
  overflow: auto;
  touch-action: auto;
}

.link-editor p, .link-editor label {
  font-size: 11px;
}

.link-editor .delete {
  display: block;
  margin-top: 10px;
}

#gesture-preview {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 90;
}

.gesture-line {
  position: absolute;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.gesture-line path {
  fill: none;
  stroke: #527b65;
  stroke-width: 2;
}

.gesture-label {
  position: absolute;
  background: #304f3e;
  color: #fff;
  font-size: 11px;
  padding: 5px 9px;
  border-radius: var(--control-radius);
}

.tool-dragging {
  cursor: grabbing;
  user-select: none;
}

.drop-target .swatch {
  outline: 3px solid #527b65;
  outline-offset: 7px;
}

.receiver.drop-target {
  outline: 3px solid #527b65;
  outline-offset: 4px;
}

.force, [data-node="copy"] {
  touch-action: none;
  cursor: grab;
}

.swatch {
  box-shadow: none;
  outline: none;
}

.node.is-master .swatch {
  outline: none;
}

.node.mode-0 .node-caption, .node.mode-0 .stop{
  display: none;
}

.node-meta {
  letter-spacing: 0;
}

.kind {
  letter-spacing: .4px;
}

.node.is-master.state-blocked .swatch {
  outline: 2px dashed #a09587;
}

.drop-target.is-master .swatch, .drop-target.is-slave .swatch {
  outline: 3px solid #527b65;
  outline-offset: 7px;
} .receiver {
  z-index: 6;
}

.node .stop {
  transform: translate(-50%,-100%);
  z-index: 1;
}

.code-fields {
  display: grid;
  grid-template-columns: 1fr 1.65fr;
  gap: var(--space-normal);
  margin-bottom: 12px;
}

.code-fields .code-field {
  min-width: 0;
  margin: 0;
  padding: 4px;
  gap: 1px;
}

.code-fields input {
  font-size: 9px;
  letter-spacing: 0;
  padding: 5px 0;
}

.code-fields button {
  font-size: 10px;
  padding: 2px;
}

.operations-editor .operation-row select {
  width: 100%;
}

.components .component {
  margin: 3px 0;
  padding: 0;
  border: 0;
}

#panel-bridges {
  display: contents;
  pointer-events: none;
}

.panel-bridge {
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 1px;
  overflow: visible;
  pointer-events: none;
  z-index: 1;
}

#panel-bridges * {
  pointer-events: none;
}

/* Menus must not intercept colour destinations during either gesture. */
.tool-dragging .editor, .tool-dragging .group-editor, .tool-dragging .link-editor,
.choosing-destination .editor, .choosing-destination .group-editor, .choosing-destination .link-editor {
  pointer-events: none;
  opacity: .25;
}

.panel-drag-handle {
  display: block;
  width: 100%;
  height: 15px;
  line-height: 12px;
  padding: 0;
  margin: -6px 0 7px;
  border: 0;
  background: transparent;
  color: #899383;
  cursor: grab;
  touch-action: none;
  font-size: 17px;
}

.panel-drag-handle:enabled:hover {
  background: #e9eee7;
}

.panel-moving .panel-drag-handle {
  cursor: grabbing;
}

#zoom {
  width: 66px;
  text-align: center;
  border-color: transparent;
  cursor: text;
  font-variant-numeric: tabular-nums;
}

#zoom:hover, #zoom:focus {
  border-color: var(--line);
  background: var(--paper);
}

.node {
  pointer-events: none;
}

.node .swatch, .node .stop {
  pointer-events: auto;
}

.canvas-controls {
  position: fixed;
  bottom: 60px;
}

.swatch {
  border-radius: 0;
}

[data-node="negative"], [data-node="complement-hc"], [data-node="complement-ha"], [data-node="spectrum"], [data-node="interpolate"], [data-node="light"], [data-cmd="add"] {
  touch-action: none;
  cursor: grab;
}

.node .node-indicator {
  pointer-events: auto;
  z-index: 2;
  width: auto;
  font-size: 11px;
  border: 0;
  cursor: pointer;
  min-width: 0;
  height: auto;
}

.node .node-indicator:disabled {
  opacity: 1;
  cursor: default;
}

.link-control {
  touch-action: none;
  cursor: grab;
}

.link-control:active {
  cursor: grabbing;
}

.node-meta {
  align-items: baseline;
  gap: var(--space-small);
}

.node-meta .hex {
  font-family: Consolas,monospace;
  letter-spacing: 0;
  white-space: nowrap;
}

.node-meta .kind {
  flex-shrink: 0;
}

.node-caption, .node-meta, .node-meta .kind{
  color: var(--canvas-text);
} .node-meta .kind {
  opacity: .75;
}

.node-meta {
  margin-top: 3px;
}

.node .stop, .node .node-indicator {
  border-radius: var(--control-radius);
}

.node .stop {
  display: flex;
  align-items: center;
}

.node .stop::before {
  content: "◀";
}

.node .stop::after {
  content: "▶";
}

.node .stop::before, .node .stop::after {
  line-height: 1;
  pointer-events: none;
  font-size: 9px;
  opacity: 1;
}

.node .stop {
  padding: 1px 3px;
  gap: var(--space-small);
}

.node.is-master .node-meta {
  margin-top: 6px;
}

.restriction-arrow {
  fill: #709782;
  stroke: none;
  pointer-events: none;
}

.restriction-arrow.fault {
  fill: #bc6851;
}

.background-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 500;
  color: var(--canvas-text);
  pointer-events: none;
}

.components input.rgb-range {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 0;
}

.rgb-range::-webkit-slider-runnable-track {
  height: 6px;
  background: var(--channel-color);
  border: 1px solid #0002;
  border-radius: var(--control-radius);
}

.rgb-range::-moz-range-track {
  height: 4px;
  background: var(--channel-color);
  border: 1px solid #0002;
  border-radius: var(--control-radius);
}

.rgb-range::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: var(--control-compact);
  height: var(--control-compact);
  margin-top: -7px;
  border: 2px solid white;
  border-radius: 50%;
  background: var(--channel-color);
  box-shadow: 0 1px 3px #0004;
}

.rgb-range::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 2px solid white;
  border-radius: 50%;
  background: var(--channel-color);
  box-shadow: 0 1px 3px #0004;
}

.components input.hue-range {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 0;
}

.hue-range::-webkit-slider-runnable-track {
  height: 6px;
  border: 1px solid #0002;
  border-radius: var(--control-radius);
  background-color: red;
  background-image: var(--hue-spectrum);
  background-size: calc(100% - 16px) 100%;
  background-position: center;
  background-repeat: no-repeat;
}

.hue-range::-moz-range-track {
  height: 4px;
  border: 1px solid #0002;
  border-radius: var(--control-radius);
  background-color: red;
  background-image: var(--hue-spectrum);
  background-size: calc(100% - 16px) 100%;
  background-position: center;
  background-repeat: no-repeat;
}

.hue-range::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: var(--control-compact);
  height: var(--control-compact);
  margin-top: -7px;
  border: 2px solid white;
  border-radius: 50%;
  background: var(--hue-color);
  box-shadow: 0 1px 3px #0006;
}

.hue-range::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 2px solid white;
  border-radius: 50%;
  background: var(--hue-color);
  box-shadow: 0 1px 3px #0006;
}

:is(.rgb-range,.hue-range):disabled::-webkit-slider-runnable-track {
  background: #ccc;
  border-color: transparent;
}

:is(.rgb-range,.hue-range):disabled::-moz-range-track {
  background: #ccc;
  border-color: transparent;
}

:is(.rgb-range,.hue-range):disabled::-webkit-slider-thumb {
  background: #999;
  border-color: white;
  box-shadow: none;
}

:is(.rgb-range,.hue-range):disabled::-moz-range-thumb {
  background: #999;
  border-color: white;
  box-shadow: none;
}

.hue-range[data-param="hc"] {
  --hue-spectrum: linear-gradient(to right,#f00 0%,#ff0 16.666667%,#0f0 33.333333%,#0ff 50%,#00f 66.666667%,#f0f 83.333333%,#f00 100%);
}

.hue-range[data-param="ha"] {
  --hue-spectrum: linear-gradient(to right,#f00 0%,#ff0 33.333333%,#0f0 50%,#0ff 58.333333%,#00f 66.666667%,#f0f 83.333333%,#f00 100%);
}

.parameter-icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  object-fit: contain;
  vertical-align: middle;
  flex-shrink: 0;
  pointer-events: none;
  user-select: none;
}

.component>span, .color-value-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.node .node-indicator {
  line-height: 0;
  padding: 1px;
}

.link-control {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

/* Keep symbols inset inside the 30px connector circles. Dense serif
 * letterforms receive an additional optical reduction. */
.receiver .parameter-icon, .link-control .parameter-icon {
  display: block;
  width: var(--connector-icon-size);
  height: var(--connector-icon-size);
  object-fit: contain;
}

.text-block-connector .parameter-icon {
  transform: scale(var(--connector-text-icon-scale));
}

.panel-drag-handle .action-icon {
  width: 15px;
  height: 15px;
}

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

.components .component:nth-child(n) {
  border: 0;
  padding: 0;
  margin: 3px 0;
}

.components .component:nth-child(5), .components .component:nth-child(6), .components .component:nth-child(8), .components .component:nth-child(10) {
  border-top: 1px solid #e7e9e1;
  padding-top: 8px;
  margin-top: 9px;
}

.node-indicator .parameter-icon {
  filter: var(--saturation-icon-filter,none);
}

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

.alpha-indicator {
  position: absolute;
  top: 4px;
  left: 4px;
  padding: 1px;
  line-height: 0;
  pointer-events: none;
}

.alpha-indicator .parameter-icon {
  width: 19px;
  height: 19px;
}

.node.is-slave .node-caption {
  bottom: calc(100% + 3px);
}

.panel-header {
  display: grid;
  grid-template-columns: var(--control-compact) minmax(0,1fr) var(--control-compact);
  align-items: center;
  gap: var(--space-small);
  margin: 0 0 var(--space-normal);
  min-height: var(--control-compact);
}

.panel-header>b {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
}

.panel-header.individual-panel-header { grid-template-columns:var(--control-compact) var(--control-compact) minmax(0,1fr) var(--control-compact); }
.editor[hidden] { display:none !important; }
.triangle-readonly { opacity:.55; }

.panel-header .panel-drag-handle, .panel-header .panel-pin, .panel-header .panel-hide {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--control-compact);

  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  border-radius: var(--control-radius);
  --control-height: var(--control-compact);
}

.panel-header .panel-drag-handle:enabled:hover, .panel-header .panel-pin:enabled:hover, .panel-header .panel-hide:enabled:hover {
  background: #e9eee7;
}

.node .stop {
  color: #777;
  background: #e5e5e5;
  border-color: #ccc;
}

.node .stop.anchored {
  color: #000;
  background: #fff;
  border-color: #888;
}

.node .stop.anchored::before, .node .stop.anchored::after {
  color: #000;
  opacity: 1;
}

.node-function {
  margin-top: 5px;
  font-size: 10px;
  line-height: 1.3;
  color: var(--canvas-text);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.function-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-small);
  margin-bottom: 10px;
  font-size: 11px;
}

.function-field textarea {
  font: inherit;
  color: inherit;
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  background: transparent;
  padding: 5px;
  min-height: 40px;
}

.function-field-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.function-field-heading button {
  font-size: 10px;
  padding: 2px 6px;
}

.function-field-actions {
  display: flex;
  gap: var(--space-small);
}

.node.mode-0 .node-function {
  margin-top: 3px;
}

.node.mode-0.is-master .node-function {
  margin-top: 6px;
}

.color-pickers>button:first-child, .system-picker {
  width: var(--control-normal);
  height: var(--control-normal);
  padding: 4px;
  flex-shrink: 0;
}

.color-pickers .parameter-icon {
  width: 22px;
  height: 22px;
  display: block;
}

.color-pickers>button:last-child {
  flex: 1;
  padding: 5px 4px;
  font-size: 10px;
  white-space: nowrap;
}

.system-picker {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  background: var(--paper);
  cursor: pointer;
}

.system-picker input[type=color] {
  position: absolute;
  inset: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.system-picker:has(input:disabled) {
  opacity: var(--control-disabled-opacity);
  cursor: default;
}

body.picking-color, body.picking-color * {
  cursor: crosshair !important;
}

.color-pickers>[data-css-colors] {
  flex: 0 0 auto;
  padding: 5px;
  font-size: 10px;
}

.css-color-palette {
  position: fixed;
  z-index: 1000000;
  width: 220px;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: 0 5px 18px #0003;
}

.css-color-palette button {
  display: flex;
  align-items: center;
  width: 100%;
  border: 0;
  border-radius: var(--control-radius);
  text-align: left;
  font-size: 12px;
}

.css-color-palette button>span {
  width: 26px;
  height: 14px;
  border: 1px solid #0003;
  flex-shrink: 0;
}

.interpolation-resets {
  display: flex;
  width: 100%;
  gap: var(--space-small);
}

.interpolation-resets button {
  font-size: 10px;
  gap: var(--space-small);
  white-space: nowrap;
}

.stops-list .stop-row {
  display: grid;
  align-items: center;
  height: var(--control-compact);
  gap: var(--space-small);
  margin: 0;
  font-size: 10px;
  color: #777;
  grid-template-columns: var(--control-compact) 12px minmax(0,1fr) 8px repeat(2,var(--control-compact));
  min-width: 0;
}

.stop-index {
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.stop-color {
  width: var(--control-compact);
  height: var(--control-compact);
  box-shadow: inset 0 0 0 1px #0002;
}

.stops-list .stop-row input {
  min-width: 0;
  width: 100%;
  height: var(--control-compact);
  padding: 0 2px;
  font-variant-numeric: tabular-nums;
  background: #ededed;
  color: #777;
  border-color: #d5d5d5;
}

.stops-list .stop-row.is-anchored input {
  background: #fff;
  color: #000;
  border-color: #444;
}

.stop-row.is-anchored .stop-index, .stop-row.is-anchored .stop-unit {
  color: #000;
}

.stops-list .stop-row button {
  --control-height: var(--control-compact);
  width: var(--control-compact);

  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  color: #000;
}

.stop-row button .action-icon {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 1;
}

.interpolation-resets {
  align-items: center;
}

.interpolation-resets button {
  display: flex;
  align-items: center;
  justify-content: center;
}

.interpolation-resets button>.action-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.group-editor {
  width: calc(6 * var(--control-normal) + 5 * var(--space-small) + 2 * var(--panel-spacing) + 2px);
}

.interpolation-resets button {
  padding: 4px 5px;
}

.component input[type=number] {
  font-variant-numeric: tabular-nums;
}

.operation-row button[data-node=interpolate], .operation-row button[data-node=spectrum] {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 30px;
  width: var(--control-normal);
  height: var(--control-normal);
  padding: 3px;
}

.operation-row button[data-node=interpolate] .action-icon, .operation-row button[data-node=spectrum] .action-icon {
  display: block;
  width: 24px;
  height: 24px;
}

.tool-dragging .panel-bridge, .choosing-destination .panel-bridge {
  opacity: .25;
}

.node-meta .hex {
  position: relative;
  display: block;
  width: 8ch;
  flex: 0 0 8ch;
  font-size: 14px;
  height: var(--control-compact);
  line-height: 18px;
}

.hex-display {
  display: block;
  white-space: pre;
  pointer-events: none;
  overflow: hidden;
}

.node .hex input[data-inline-hex] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  border-radius: 0;
  font: inherit;
  line-height: inherit;
  letter-spacing: inherit;
  color: transparent;
  background: transparent;
  pointer-events: auto;
  user-select: text;
}

.hex input[data-inline-hex]::selection {
  background: #759dde55;
  color: #000;
}

.hex input[data-inline-hex][aria-invalid=true] {
  box-shadow: none;
}

.hex input[data-inline-hex]:focus {
  outline: 1px solid #79817b;
  outline-offset: 1px;
}

.hex:focus-within .hex-display {
  visibility: hidden;
}

.background-label .action-icon {
  width: 36px;
  height: 36px;
}

.interpolation-axes {
  display: grid;
  grid-template-columns: repeat(6,minmax(var(--control-normal),1fr));
  gap: var(--space-small);
  margin: 9px 0;
}

.interpolation-axes button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  min-width: 0;
  border-radius: var(--control-radius);
}

.interpolation-axes .axis-icon {
  width: 28px;
  height: 28px;
}

.interpolation-children-row {
  display: flex;
  align-items: center;
  margin: 9px 0;
  font-size: 11px;
  gap: var(--space-normal);
}

.interpolation-children-row label {
  display: flex;
  align-items: center;
  gap: var(--space-normal);
}

.interpolation-children-row input[data-count] {
  width: 64px;
}

.interpolation-resets button {
  flex: 1 1 0;
  min-width: 0;
}

.operations-editor .operation-row button[data-node] {
  width: 100%;
  height: var(--control-normal);
  min-width: 0;
  padding: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.operations-editor .operation-row.new-masters {
  align-items: center;
}

.creation-label {
  font-size: 9px;
  white-space: nowrap;
}

/* Flex behaviour stays overridable by the component's own layout. */
button:not(.swatch):not(.color-resize):not(.color-shape-handle), select {
  box-sizing: border-box;
  flex-shrink: 0;
}

.function-field-heading button, :is(.component,.color-value-row) .force, .code-field button, .rule-item>button, .rule-item>div button, .node .stop, .node .node-indicator {
  --control-height: var(--control-compact);
}

.function-field-heading button {
  padding-block: 0;
  line-height: 16px;
}

:is(.component,.color-value-row) .force {
  display: flex;
  align-items: center;
  justify-content: center;
}

.node .stop, .node .node-indicator {
  line-height: 16px;
}

.node .node-indicator .parameter-icon {
  width: 16px;
  height: 16px;
}

.system-picker {
  height: var(--control-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.group-editor input[data-count], .group-editor select {
  height: var(--control-normal);
}

.operations-editor .new-masters button.color-action {
  box-shadow: none;
}

.operations-editor .color-action {
  transition: border-color var(--transition-duration);
}

.editor .code-fields input {
  font-size: 11px;
  flex: 1;
  height: var(--control-normal);
  min-width: 0;
  border-radius: var(--control-radius);
}

.editor .code-fields input:enabled {
  color: #000;
  -webkit-text-fill-color: #000;
  opacity: 1;
}

.editor .code-fields .code-field button {
  border: 1px solid var(--line);
  padding-inline: 0;
}

.editor .code-field {
  padding-inline: 3px;
  gap: 0;
}

.editor .code-fields input:disabled {
  color: #888;
  -webkit-text-fill-color: #888;
  opacity: 1;
}

.editor .code-fields .code-field {
  display: flex;
  padding: 0;
  background: transparent;
}

.editor .code-fields input {
  background: #f0f2eb;
}

.editor .code-fields .code-field button {
  background: var(--paper);
}

.editor .code-fields .code-field button:enabled:hover {
  background: #e9eee7;
  border-color: #9aa99e;
}

.function-field-heading button:is([data-function-visibility],[data-name-visibility]) {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--control-compact);
  padding: 0 3px;
}

.color-pickers {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-normal);
}

.picker-tools {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: var(--space-small);
}

.picker-tools button, .picker-tools .system-picker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-small);
  width: auto;
  padding: 3px;
  font-size: 11px;
}

/* Shared image dimensions; optical transforms remain in their own rules. */
.component>span .parameter-icon, .color-value-icon .parameter-icon,
.picker-tools .parameter-icon {
  width: 22px;
  height: 22px;
}

.picker-css {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: var(--space-small);
}

.picker-css button {
  flex: 1;
  min-width: 0;
  font-size: 10px;
  padding: 4px;
}

.editor, .editor.triangle-editor, .group-editor, .link-editor {
  padding: var(--panel-spacing);
}

/* Bound every menu, including widths restored by the panel controller. */
[data-panel-key] {
  max-width: min(var(--panel-max-width), 100vw);
}

.operations-editor .operation-row {
  border: 0;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(6,minmax(0,1fr));
  gap: var(--space-small);
  margin-bottom: var(--panel-spacing);
}

.picker-css button, .picker-css select {
  width: 100%;
  min-width: 0;
  white-space: nowrap;
  font-size: 10px;
  padding: 4px;
}

.picker-css [data-css-colors] {
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  text-align: left;
}

.css-color-palette {
  padding: 0;
}

.css-color-palette button {
  padding: 0;
  gap: 0;
  background: #fff;
  color: #000;
}

.css-color-palette button:enabled:hover {
  background: #fff;
  color: #000;
}

.css-color-palette button>.css-option-color {
  width: 52px;
  height: 100%;
  align-self: stretch;
  border: 0;
}

.css-color-palette button>.css-option-name {
  width: auto;
  height: auto;
  border: 0;
  padding: 0 9px;
  flex: 1;
}

.css-color-palette button:focus-visible, .css-color-palette button:hover {
  outline: 1px solid #000;
  outline-offset: -1px;
}

.picker-css [data-css-colors] {
  align-items: center;
  gap: var(--space-small);
}

.css-current-color {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
}

.css-current-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.picker-css [data-user-names] {
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-color-palette {
  background: #fff;
  color: #000;
}

.user-color-message {
  padding: 5px 8px;
  font-size: 11px;
}

.user-color-message:empty {
  display: none;
}

.node {
  --master-frame-width: 2px;
  --master-frame-outset: calc(3px + var(--master-frame-width));
  --outer-text-gap: 3px;
  --frame-outset: 0px;
}

.node.is-master {
  --frame-outset: var(--master-frame-outset);
}

.node .node-caption, .node.is-slave .node-caption {
  bottom: calc(100% + var(--frame-outset) + var(--outer-text-gap));
}

.node .node-function {
  margin-top: var(--outer-text-gap);
}

.node.mode-0 .node-function, .node.mode-0.is-master .node-function {
  margin-top: calc(var(--frame-outset) + var(--outer-text-gap));
}

.user-name-editor {
  margin-bottom: 0;
}

.user-name-editor textarea {
  color: #000;
}

.function-field-heading .field-label {
  font-size: 10px;
  font-weight: 400;
}

.function-field-heading .field-label small {
  font-size: 9px;
  font-weight: 400;
  color: #888;
  margin-left: 5px;
}

.editor.triangle-editor {
  width: 266px;
  padding: var(--panel-spacing);
}

.triangle-editor canvas {
  display: block;
  width: 240px;
  max-width: 100%;
  touch-action: none;
  margin: 6px auto;
}

.triangle-values {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: var(--space-normal);
  width: 100%;
}

.triangle-values label {
  display: flex;
  align-items: center;
  gap: var(--space-small);
  min-width: 0;
  font-size: 11px;
}

.triangle-values input {
  width: 100%;
  min-width: 0;
  flex: 1;
  font-size: 11px;
}

.triangle-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-normal);
}

.triangle-modes, .triangle-actions {
  display: flex;
  gap: var(--space-small);
}

.triangle-modes button {
  width: var(--control-normal);
  padding: 3px;
}

.triangle-actions button {
  padding: 3px 7px;
}

.rule-item>.rule-heading {
  display: flex;
  align-items: center;
  gap: var(--space-small);
}

.rule-heading [data-color-label] {
  min-width: 0;
  overflow-wrap: anywhere;
}

.rule-item>.rule-heading button.rule-drag {
  float: none;
  margin: 0;
  width: var(--control-compact);
  flex: 0 0 var(--control-compact);
  padding: 0;
  border: 1px solid var(--line);
  background: #fff;
  touch-action: none;
}

.rule-drag:enabled {
  cursor: grab;
}

.rule-dragging {
  opacity: .45;
}

.rule-drop-before {
  box-shadow: 0 -2px #527b65;
}

.rule-drop-after {
  box-shadow: 0 2px #527b65;
}

.rule-item>.rule-heading button.rule-drag, .rule-item>.rule-heading button.rule-drag:enabled:hover {
  background: transparent;
  border: 0;
  box-shadow: none;
}

.rule-heading .rule-transform {
  margin-left: auto;
  margin-right: 3px;
  padding: 0 4px;
  gap: var(--space-small);
  flex-shrink: 0;
  cursor: pointer;
}

.rule-transform input[type=checkbox] {
  width: 13px;
  height: 13px;
  margin: 0;
  accent-color: var(--accent);
}

.rule-transform .action-icon {
  width: var(--control-normal);
  height: 24px;
  object-fit: contain;
}

.rule-values {
  display: grid;
  grid-template-columns: repeat(2,minmax(0,1fr));
  gap: var(--panel-spacing);
}

.rule-values label {
  min-width: 0;
  gap: var(--space-small);
}

.rule-values input {
  flex: 1 1 0;
  width: 0;
  min-width: 0;
  height: var(--control-normal);
  padding: 4px 6px;
  font-size: 12px;
}

.rule-values .formula-variable {
  font-family: Georgia,"Times New Roman",serif;
  font-size: 16px;
  font-style: italic;
}

.rule-values label {
  font-size: 12px;
}

.node:is(.state-pending,.state-conflict,.state-blocked) .swatch, .node.is-master.state-blocked .swatch {
  outline: none;
  animation: none;
}

.problem-border {
  display: none;
  position: absolute;
  left: -2px;
  top: -2px;
  width: 112px;
  height: 112px;
  pointer-events: none;
  z-index: 1;
  overflow: visible;
}

.node:is(.state-pending,.state-conflict,.state-blocked)>.problem-border {
  display: block;
}

.problem-border path {
  fill: none;
  stroke: #bc6851;
  stroke-width: 2;
  stroke-dasharray: 8 6;
}

.problem-border path, #connections path.fault {
  animation: warning-dashes 1s linear infinite;
}

@keyframes warning-dashes {
  to {
    stroke-dashoffset: -14;
  }
}

.rule-transform.formula-risk {
  background: #fff0cc;
  outline: 1px solid #bd8429;
  border-radius: var(--control-radius);
}

.rule-transform.formula-invalid {
  background: #ffe0dc;
  outline: 1px solid #bf4132;
  border-radius: var(--control-radius);
}

.rule-values.formula-risk input {
  border-color: #bd8429;
  background: #fff8e8;
}

.rule-values.formula-invalid input {
  border-color: #bf4132;
  background: #fff0ee;
}

.user-color-palette button>.css-option-name {
  min-width: 0;
  flex-shrink: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.creation-axes {
  display: flex;
  gap: var(--space-small);
  justify-content: flex-start;
  min-width: 0;
}

.operations-editor .creation-axes button[data-node] {
  width: var(--control-normal);
  height: var(--control-normal);
  padding: 1px;
  flex: 1 1 0;
}

.creation-axes .axis-icon {
  width: 26px;
  height: 26px;
  display: block;
}

.node-meta .hex {
  color: var(--canvas-text);
}

.node-meta .hex-alpha {
  color: inherit;
  opacity: .5;
}

.node .hex input[data-inline-hex] {
  caret-color: var(--canvas-text);
}

.node .hex input[data-inline-hex]:focus {
  color: var(--canvas-text);
}

.parameter-toggles {
  display: flex;
  gap: var(--space-small);
  margin-bottom: var(--panel-spacing);
}

.parameter-toggles button {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  padding: 0 3px 2px;
  font-size: 10px;
  border-radius: var(--control-radius);
  background: var(--paper);
  color: #000;
  --control-height: var(--control-compact);
  max-height: var(--control-compact);
}

.parameter-section:not([hidden])~.parameter-section:not([hidden]) {
  border-top: 1px solid var(--line);
  margin-top: var(--panel-spacing);
  padding-top: var(--panel-spacing);
}

.components .parameter-section .component {
  margin: 3px 0;
  padding: 0;
  border: 0;
}

.color-names {
  margin-top: var(--panel-spacing);
  padding-top: var(--panel-spacing);
  border-top: 1px solid var(--line);
}

.node.mode-0 .node-caption[data-visibility=always] {
  display: block;
  opacity: 1;
}

.color-names .user-name-editor {
  margin-top: var(--panel-spacing);
}

.editor .code-fields {
  margin-bottom: 10px;
  flex-direction: column;
  display: grid;
  grid-template-columns: minmax(0,calc((100% - 6px)/2.85)) minmax(0,1fr);
  gap: 14px;
}

.editor .code-fields .code-field {
  gap: 2px;
}

.editor .code-fields input {
  padding: 3px;
  letter-spacing: 0;
}

.editor .code-fields .code-field button {
  --control-height: var(--control-compact);
  flex: 0 0 18px;
  width: var(--control-compact);
  padding: 0;
  font-size: 13px;
  line-height: 16px;
  align-self: center;
}

.canvas-controls button[data-cmd] .action-icon {
  display: block;
  width: 28px;
  height: 28px;
}

.canvas-controls button[data-cmd] {
  width: var(--control-normal);
  height: var(--control-normal);
  padding: 1px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.canvas-controls {
  padding: var(--panel-spacing);
  gap: var(--space-small);
  align-items: center;
}

.canvas-controls #zoom {
  width: 48px;
  height: var(--control-normal);
  margin: 0;
  padding: 0 2px;
  line-height: 28px;
}

.operations-editor .operation-row.new-masters {
  row-gap: var(--space-small);
}

.operations-editor .new-masters>.creation-label {
  grid-column: 1/-1;
  font-size: 10px;
  line-height: 14px;
}

.operations-editor .operation-row.status-actions {
  row-gap: var(--space-small);
  align-items: center;
}

.operations-editor .status-actions>.creation-label {
  grid-column: 1/-1;
  font-size: 10px;
  line-height: 14px;
}

/* Shared image dimensions; optical transforms remain in their own rules. */
.new-masters [data-node=unlink] .action-icon,
.status-actions .action-icon {
  width: 24px;
  height: 24px;
}

.node {
  width: var(--color-size,108px);
}

.node .swatch {
  width: var(--color-size,108px);
  height: var(--color-size,108px);
  appearance: none;
  -moz-appearance: none;
  overflow: visible;
}

.node-function {
  width: 100%;
  text-align: center;
}

.node .problem-border {
  width: calc(var(--color-size,108px) + 4px);
  height: calc(var(--color-size,108px) + 4px);
}

.node .stop {
  top: calc(var(--color-size,108px) - 6px);
  left: 50%;
}

.node .color-resize {
  position: absolute;
  left: calc(var(--resize-diagonal,var(--color-size,108px)) - 12px);
  top: calc(var(--resize-diagonal,var(--color-size,108px)) - 12px);
  width: 12px;
  height: 12px;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: nwse-resize;
  touch-action: none;
  pointer-events: auto;
  opacity: 0;
  z-index: 2;
  transition: none;
}

.node .color-resize::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--resize-color);
  clip-path: polygon(100% 0,100% 100%,0 100%);
}

.node .color-resize:enabled:hover {
  background: transparent;
  border: 0;
}

.node .swatch:hover~.color-resize, .node .color-resize:hover, .node .color-resize:focus-visible, .node .color-resize.resizing {
  opacity: 1;
}

.status-actions [data-node=z-order], .text-menu-row [data-text-depth] {
  gap: 2px;
  font-size: 10px;
}

.node .swatch {
  transition: none;
  border-radius: 0;
}

.node .alpha-indicator {
  top: var(--indicator-inset,4px);
  left: var(--indicator-inset,4px);
}

.node .node-indicator {
  top: var(--indicator-inset,4px);
  right: var(--indicator-inset,4px);
}

.stops-list {
  overscroll-behavior: contain;
  touch-action: pan-y;
}

.status-actions [data-node=reset-size] {
  gap: 2px;
  font-size: 10px;
}

.node .swatch {
  clip-path: var(--shape-clip,inset(0));
}

.shape-frames {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--color-size);
  height: var(--color-size);
  overflow: visible;
  pointer-events: none;
}

.shape-frames path {
  fill: none;
  stroke-linejoin: miter;
  stroke-linecap: butt;
}

.master-frame {
  display: none;
  stroke: var(--frame-color);
}

.is-master .master-frame {
  display: block;
}

.contrast-frame {
  display: none;
  stroke: var(--visibility-edge);
  stroke-width: 1;
  opacity: var(--visibility-edge-opacity);
}

.needs-edge .contrast-frame {
  display: block;
}

.target-frame {
  display: none;
  stroke: #527b65;
  stroke-width: 3;
}

.drop-target .target-frame {
  display: block;
}

.node.drop-target .swatch {
  outline: none;
}

.shape-editor {
  margin-bottom: var(--panel-spacing);
}

.shape-editor>.field-label {
  font-size: 10px;
  line-height: 14px;
  margin-bottom: 4px;
}

.shape-presets {
  display: grid;
  grid-template-columns: repeat(5,minmax(0,1fr)) 35px;
  gap: var(--space-small);
}

.shape-presets button {
  --control-height: var(--control-normal);
  line-height: 1;
  font-size: 10px;
  padding: 0 2px;
  border-radius: var(--control-radius);
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.shape-slider-row {
  display: flex;
  align-items: center;
  gap: var(--space-normal);
  margin-top: 5px;
}

.shape-slider-track {
  flex: 1;
  min-width: 0;
  position: relative;
  padding-bottom: 4px;
}

.shape-slider-track input {
  display: block;
  width: 100%;
  margin: 0;
}

.shape-ticks {
  position: absolute;
  left: 7px;
  right: 7px;
  bottom: 0;
  pointer-events: none;
  height: 3px;
}

.shape-ticks i {
  position: absolute;
  width: 1px;
  height: 3px;
  background: #79817b;
}

.shape-slider-row output {
  font-size: 10px;
  text-align: right;
  width: 35px;
  font-variant-numeric: tabular-nums;
}

.node .node-caption {
  text-align: center;
}

.node .node-meta, .node.is-master .node-meta {
  flex-direction: column;
  align-items: center;
  gap: 0;
  text-align: center;
  margin-top: calc(var(--frame-outset) + 1px);
}

.node .node-meta .hex {
  flex: 0 0 auto;
  text-align: center;
}

.node .hex input[data-inline-hex] {
  text-align: center;
}

.node .node-meta .kind {
  padding-top: 0;
}

.shape-presets .action-icon {
  width: 28px;
  height: 28px;
  display: block;
}

.operations-editor .status-actions>button {
  width: 100%;
  min-width: 0;
}

.text-sample {
  line-height: 1.45;
  overflow-wrap: anywhere;
  outline: none;
  min-height: 1em;
  color: inherit;
}

.text-sample * {
  color: inherit;
  font-family: inherit;
  letter-spacing: normal;
}

.text-sample h1 {
  font-size: 2.5em;
  line-height: 1.1;
  margin: 0 0 .4em;
  font-weight: 700;
}

.text-sample h2 {
  font-size: 1.5em;
  line-height: 1.2;
  margin: 0 0 .6em;
  font-weight: 600;
}

.text-sample h3 {
  font-size: 1.25em;
}

.text-sample p {
  font-size: 1em;
  margin: .6em 0;
}

.text-sample small {
  font-size: .75em;
}

.text-sample pre {
  white-space: pre-wrap;
}

.parameter-toggles button {
  height: var(--control-compact);
  padding-bottom: 0;
}

.operations-editor .creation-axes button[data-node], .operations-editor .status-actions button {
  --control-height: var(--control-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.text-block .text-block-grip {
  --control-height: var(--control-normal);
  width: var(--control-normal);
  min-width: var(--control-normal);
  padding: 0;
  border: 0;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 var(--control-normal);
  cursor: grab;
  touch-action: none;
}

.panel-header .panel-drag-handle .action-icon, .text-block-grip .action-icon {
  display: block;
  width: var(--control-compact);
  height: var(--control-compact);
  flex: 0 0 18px;
}

.editor:not(.operations-editor) {
  width: 320px;
}

.editor .color-value-row .code-field {
  margin: 0;
  min-width: 0;
  gap: 2px;
}

.editor .color-value-row .code-field input {
  min-width: 0;
  width: 100%;
  height: var(--control-compact);
  padding: 0 2px;
  font: 11px "Arial Narrow","Aptos Narrow","Liberation Sans Narrow",Arial,sans-serif;
  font-stretch: condensed;
  text-align: center;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

.editor .color-value-row>.force {
  --control-height: var(--control-compact);
  padding: 0;
}

/* Shared image dimensions; optical transforms remain in their own rules. */
:is(.component,.color-value-row) .apply .action-icon,
.status-actions [data-node=z-order] .action-icon, .text-menu-row [data-text-depth] .action-icon,
.status-actions [data-node=reset-size] .action-icon,
.editor .color-value-row>.apply .action-icon {
  width: 20px;
  height: 20px;
}

.operations-editor .creation-axes button[data-node]{
  width: var(--control-normal);
  flex: 0 0 var(--control-normal);
  gap: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.operations-editor .creation-axes button .action-icon, .operations-editor .text-marriage .action-icon {
  width: 28px;
  height: 28px;
  display: block;
}

.size-slider-row {
  display: grid;
  grid-template-columns: minmax(0,1fr) 35px;
  align-items: center;
  gap: var(--space-normal);
  margin-bottom: var(--panel-spacing);
}

.size-slider-row input {
  width: 100%;
  min-width: 0;
  margin: 0;
}

.size-slider-row button {
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.node .color-shape-handle {
  position: absolute;
  left: calc(var(--color-size,108px) - var(--resize-diagonal,var(--color-size,108px)));
  top: calc(var(--resize-diagonal,var(--color-size,108px)) - 12px);
  width: 12px;
  height: 12px;
  min-height: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: var(--resize-color);
  clip-path: polygon(0 0,100% 100%,0 100%);
  cursor: nesw-resize;
  touch-action: none;
  pointer-events: auto;
  opacity: 0;
  z-index: 2;
  transition: none;
}

.node .swatch:hover~.color-shape-handle, .node .color-shape-handle:hover, .node .color-shape-handle:focus-visible, .node .color-shape-handle.reshaping {
  opacity: 1;
}

.creation-section-title {
  grid-column: 1/-1;
  font-size: 10px;
  line-height: 14px;
}

.panel-section-heading {
  display: flex;
  align-items: center;
  gap: var(--space-small);
  margin-top: var(--space-small);
}

.panel-section-heading>button {
  --control-height: var(--control-compact);
  display: flex;
  align-items: center;
  gap: var(--space-small);
  flex: 1;
  min-width: 0;
  border: 0;
  border-radius: var(--control-radius);
  background: transparent;
  padding: 0;
  font-size: 10px;
  text-align: left;
  white-space: nowrap;
}

.panel-section-heading .section-chevron {
  display: inline-block;
  width: 10px;
  text-align: center;
}

.panel-section-heading>button[aria-expanded=true] .section-chevron {
  transform: rotate(90deg);
}

.operations-editor .instance-section-body {
  margin-top: 3px;
  padding-top: 0;
  border-top: 0;
  margin-bottom: 0;
}

.panel-section-heading .function-field-actions button {
  --control-height: var(--control-compact);
  padding: 0 3px;
  font-size: 10px;
  line-height: 16px;
}

.panel-section-heading .function-field-actions {
  display: flex;
  align-items: center;
  gap: var(--space-small);
}

.panel-section-heading [data-function-visibility] {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--control-compact);
}

.operations-editor .operation-row.status-actions {
  grid-template-columns: minmax(0,1fr) repeat(4,var(--control-normal));
  gap: var(--space-small);
  width: 100%;
}

.status-actions [data-node=z-order] {
  grid-column: auto;
}

.operations-editor .status-actions button {
  --control-height: var(--control-normal);
  gap: 2px;
  padding: 0;
  font-size: 10px;
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: center;
}

.operations-editor .status-actions .action-icon {
  width: 28px;
  height: 28px;
}

.editor .color-section-body {
  margin-top: 3px;
  padding-top: 0;
  border-top: 0;
}

.editor .code-fields.color-value-row {
  display: grid;
  gap: var(--space-normal);
  align-items: center;
  grid-template-columns: 24px 76px minmax(0,1fr) 18px 18px;
  column-gap: var(--space-small);
}

:is(.component,.color-value-row) .force {
  width: var(--control-compact);
  min-width: var(--control-compact);
  border: 0;
  border-radius: var(--control-radius);
  padding: 0;
}

:is(.component,.color-value-row) .force .action-icon, .editor .color-value-row>.force .action-icon {
  width: var(--control-compact);
  height: var(--control-compact);
  display: block;
}

.component input[type=number] {
  appearance: auto;
  width: 54px;
  height: var(--control-compact);
  padding: 0 1px;
  font-size: 12px;
  line-height: 16px;
  border-radius: var(--control-radius);
}

.component input[type=number]::-webkit-inner-spin-button {
  appearance: auto;
  opacity: 1;
  cursor: default;
  margin: 0;
}

.component {
  display: grid;
  gap: var(--space-normal);
  align-items: center;
  margin: 7px 0;
  font-size: 11px;
  column-gap: var(--space-small);
  grid-template-columns: 24px minmax(0,1fr) 52px 18px 18px;
}

.component>.parameter-number {
  display: grid;
  grid-template-columns: minmax(0,1fr) calc(var(--control-compact) / 2);
  gap: var(--space-small);
  align-items: center;
  min-width: 0;
}

.component .parameter-number input {
  appearance: textfield;
  width: 100%;
  min-width: 0;
  padding: 0 1px;
}

.component .parameter-number input::-webkit-inner-spin-button {
  appearance: none;
  display: none;
}

.component .parameter-stepper {
  --control-height: var(--control-compact);
  width: calc(var(--control-compact) / 2);
  min-width: 0;
  padding: 0;
  border: 0;
  border-radius: var(--control-radius);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  background: #ecebf0;
  color: #6b6b75;
}

.parameter-stepper span {
  height: calc(var(--control-compact) / 2);
  line-height: calc(var(--control-compact) / 2);
  font-size: 10px;
  text-align: center;
  display: block;
}

.parameter-stepper:enabled span:hover {
  background: #d9dce1;
  color: #000;
}

.editor .code-fields.parameter-section {
  margin-bottom: 0;
}

.panel-section-heading [data-name-visibility] {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--control-compact);
}

/* Shared image dimensions; optical transforms remain in their own rules. */
.force .action-icon,
.panel-header .action-icon,
:is(.component,.color-value-row) .force .action-icon,
.function-field-heading :is([data-function-visibility],[data-name-visibility]) .action-icon,
.rule-drag .action-icon,
.editor .color-value-row>.force .action-icon,
.panel-section-heading [data-function-visibility] .action-icon,
.panel-section-heading [data-name-visibility] .action-icon {
  width: var(--control-compact);
  height: var(--control-compact);
}

button:has(img.parameter-icon) {
  padding: 0 !important;
}

.text-block-layer {
  display: contents;
}

.text-block {
  position: absolute;
  border: 0;
  box-shadow: none;
  padding: 0;
  cursor: grab;
  touch-action: pan-y;
  z-index: 3;
}

.text-block article {
  width: 100%;
  height: 100%;
  padding: 24px;
  padding-left: max(24px, var(--control-normal));
  scrollbar-gutter: stable;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior-y: contain;
  touch-action: pan-y;
  cursor: default;
  user-select: none;
}

.text-block article[contenteditable=true] {
  cursor: text;
  user-select: text;
}

.text-block .text-block-grip {
  position: absolute;
  top: 0;
  left: 0;
  width: var(--control-normal);
  border-radius: var(--control-radius);
  opacity: 0;
}

.text-block-grip .action-icon {
  filter: var(--text-block-grip-filter,none);
}

.text-block .text-block-grip:enabled:hover {
  background: transparent;
}

.text-block .text-block-resize {
  --control-height: 12px;
  position: absolute;
  right: 0;
  bottom: 0;
  width: 12px;
  min-width: 12px;
  max-width: 12px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: #79817b;
  clip-path: polygon(100% 0,100% 100%,0 100%);
  cursor: nwse-resize;
  opacity: 0;
}

.text-block:hover>button, .text-block>button:focus-visible {
  opacity: 1;
}

.editor.text-block-menu {
  width: 240px;
}

.text-menu-row {
  display: grid;
  grid-template-columns: minmax(66px,1fr) var(--control-normal) minmax(38px,1fr) repeat(2,var(--control-normal));
  gap: var(--space-small);
  margin-top: var(--panel-spacing);
}

.text-menu-row:has([data-font]) {
  grid-template-columns: repeat(3,minmax(0,1fr)) 54px;
}

.text-menu-row button, .text-menu-row input {
  min-width: 0;
  width: 100%;
  padding: 0 4px;
  font-size: 11px;
}

.text-block-menu textarea {
  width: 100%;
  max-width: 100%;
  height: 140px;
  resize: vertical;
  margin-top: 8px;
  font: 12px Consolas,monospace;
}

.text-block-links {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: visible;
  pointer-events: none;
  z-index: 1;
}

.text-block-links .text-marriage-curve {
  fill: none;
  stroke: #8f9f91;
  stroke-width: 1.6;
}

.text-block-connector {
  width: var(--control-normal);
  border-radius: 50%;
  z-index: 9999;
  padding: 0;
  touch-action: none;
}

.operations-editor {
  width: var(--panel-compact-width);
  min-width: 0;
}

.operations-editor .operation-row.interpolation-section {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: var(--space-normal);
  width: 100%;
}

.interpolation-counts {
  display: grid;
  grid-template-columns: repeat(9,minmax(var(--control-compact),1fr));
  gap: var(--space-small);
}

.interpolation-counts button {
  --control-height: var(--control-compact);
  width: 100%;
  min-width: 0;
  padding: 0;
  font-size: 11px;
}

.interpolation-kind {
  display: grid;
  grid-template-columns: var(--interpolation-label-width) minmax(0,1fr);
  align-items: center;
  gap: var(--space-small);
}

.interpolation-kind-label {
  width: var(--interpolation-label-width);
  height: var(--control-normal);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Shared image dimensions; optical transforms remain in their own rules. */
.size-slider-row .action-icon,
.interpolation-kind-label .action-icon {
  width: 26px;
  height: 26px;
}

.interpolation-kind .creation-axes {
  flex: 1;
  gap: var(--space-small);
}

.operations-editor .interpolation-kind .creation-axes button[data-node] {
  flex: 1 1 0;
  width: auto;
  min-width: var(--control-normal);
}

.operations-editor .new-masters button.color-action {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 0;
}

.operations-editor .new-masters button.color-action .parameter-icon {
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
}

.operations-editor .operation-row.new-masters {
  grid-template-columns: auto minmax(0,1fr);
  column-gap: var(--space-normal);
}

.derivative-modes {
  display: flex;
  gap: var(--space-small);
}

.operations-editor .derivative-modes button {
  width: var(--control-compact);
  --control-height: var(--control-compact);
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.derivative-modes .action-icon {
  width: calc(var(--control-compact) - 2px);
  height: calc(var(--control-compact) - 2px);
}

.derivative-actions {
  display: grid;
  grid-template-columns: repeat(4,minmax(0,1fr));
  gap: var(--space-small);
}

.derivative-actions button {
  width: 100%;
  min-width: var(--control-normal);
}

button[aria-pressed=true]:not(.panel-section-heading>button), button[aria-selected=true], button[aria-pressed=true]:not(.panel-section-heading>button):enabled:hover, button[aria-selected=true]:enabled:hover {
  background: var(--control-selected);
}

#app {
  height: 100dvh;
  display: flex;
  flex-direction: column;
}

#app>header {
  flex-shrink: 0;
}

#viewport {
  height: auto;
  flex: 1;
  min-height: 0;
}

#app>footer {
  height: auto;
  min-height: calc(var(--control-compact) + 4px);
  flex-shrink: 0;
  display: grid;
  grid-template-columns: minmax(0,1fr) auto minmax(max-content,1fr);
  align-items: center;
  gap: var(--space-small) 12px;
  padding: 2px 8px;
  background: #404040;
  color: #fff;
  border: 0;
  font-size: 10px;
}

footer #status {
  min-width: 0;
}

.depth-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-small);
}

.depth-label {
  display: flex;
  align-items: center;
}

.depth-label .action-icon {
  width: var(--control-compact);
  height: var(--control-compact);
  filter: invert(1);
}

footer .canvas-controls {
  position: static;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: var(--space-small);
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: #fff;
  box-shadow: none;
}

footer .canvas-controls #zoom {
  width: 52px;
  text-align: center;
}

:is(.editor,.group-editor,.rule-item) button.delete-button {
  --control-height: var(--control-normal);
  width: var(--control-height);
  min-width: var(--control-height);
  max-width: var(--control-height);
  flex: 0 0 var(--control-height);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  background: var(--paper);
  color: var(--ink);
  box-shadow: none;
}

.rule-item>.rule-heading button.delete-button {
  --control-height: var(--control-compact);
  margin-left: auto;
}

.rule-heading .rule-color-sample+input.rule-enabled {
  margin-left: auto;
}

.rule-heading .rule-enabled+button.delete-button {
  margin-left: 0;
}

.interpolation-children-row .delete-button {
  margin-left: auto;
}

:is(.editor,.group-editor,.rule-item) button.delete-button>.action-icon {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

:is(.editor,.group-editor,.rule-item) button.delete-button:enabled:hover {
  background: #e9eee7;
  border-color: #9aa99e;
}

#app>header {
  display: block;
  height: auto;
  min-height: 0;
  padding: 0;
  background: #000;
  color: #fff;
  border: 0;
  overflow: visible;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-normal);
  padding: 3px 8px;
}

header .brand {
  position: relative;
  display: flex;
  flex: 0 1 189px;
  min-width: 0;
  height: var(--control-compact);
}

header .brand::after {
  content: "";
  position: absolute;
  inset: 0;
  background-color: #fff;
  mask: url('../assets/logos/logo_colorsynthaxis_small.png') center / contain no-repeat;
  pointer-events: none;
  transition: background-color var(--transition-duration) ease;
}

header .brand:is(:hover,:focus-visible)::after {
  background-color: var(--control-selected);
}

header .brand img {
  display: block;
  width: 100%;
  height: auto;
  max-height: var(--control-compact);
  object-fit: contain;
  opacity: 0;
}

header .toolbar, header .history-actions, header .preset-modes {
  display: flex;
  align-items: center;
  gap: var(--space-small);
  flex: none;
}

header .toolbar {
  justify-content: flex-end;
}

#app header #preset-name {
  width: calc(100% - var(--control-compact));
  min-width: 0;
  border-radius: var(--control-radius) 0 0 var(--control-radius);
}

#app header #preset-list {
  --control-height: var(--control-compact);
  appearance: none;
  display: block;
  height: var(--control-compact);
  margin: 0;
  border: 0;
  width: var(--control-compact);
  min-width: var(--control-compact);
  padding: 0 5px;
  font-size: 0;
  border-radius: 0 var(--control-radius) var(--control-radius) 0;
  color-scheme: dark;
}

#app header #preset-name:focus-visible, #app header #preset-list:focus-visible {
  outline: none;
  border-color: var(--line);
  box-shadow: none;
  background-color: var(--control-hover);
}

header .preset-picker {
  position: relative;
  display: block;
  flex: 0 0 var(--control-compact);
  width: var(--control-compact);
  height: var(--control-compact);
  align-self: center;
  padding: 0;
  line-height: 0;
}

header .preset-picker > span {
  position: absolute;
  inset: 0;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

header .preset-picker .action-icon {
  display: block;
  margin: 0;
  width: var(--control-compact);
  height: var(--control-compact);
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 1;
}

header .preset-picker:has(select:enabled:hover) {
  background: var(--control-hover);
  border-radius: var(--control-radius);
}

header .preset-picker:has(select:disabled) .action-icon {
  opacity: var(--control-disabled-opacity);
}

header #preset-list option {
  font-size: 11px;
  background: #404040;
  color: white;
}

header #preset-name::placeholder {
  color: #aaa;
}

/* Restore the interface without animating intermediate startup states. */
#app.is-initializing :is(header,.project-tabs,.site-footer),
#app.is-initializing :is(header,.project-tabs,.site-footer) *,
#app.is-initializing :is(header,.project-tabs,.site-footer) *::before,
#app.is-initializing :is(header,.project-tabs,.site-footer) *::after {
  transition: none !important;
}

header .preset-toolbar {
  display: block;
  padding: 0;
  background: #404040;
}

header .storage-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows var(--transition-duration) ease, opacity var(--transition-duration) ease;
}

header .storage-band.is-open {
  grid-template-rows: 1fr;
  opacity: 1;
}

header .storage-band-reveal {
  min-height: 0;
  overflow: hidden;
}

#app :is(header,footer,.site-footer) {
  --line: #666;
  --paper: transparent;
  --control-text: #fff;
  --control-hover: #555;
}

#app .bar-control {
  --control-height: var(--control-compact);
  height: var(--control-height);
  min-height: var(--control-height);
  max-height: var(--control-height);
  width: auto;
  min-width: 0;
  padding: 0 4px;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  box-shadow: none;
  background: var(--paper);
  color: var(--control-text);
  font-size: 11px;
  font-weight: 400;
  line-height: calc(var(--control-height) - 2px);
  white-space: nowrap;
}

#app .bar-control:enabled:hover, #app a.bar-control:hover {
  background: var(--control-hover);
  border-color: #999;
}

#app :is(button,a).bar-control {
  border: 0;
  line-height: var(--control-height);
}

#app .bar-control[aria-pressed=true], #app .bar-control[aria-pressed=true]:enabled:hover {
  background: var(--control-selected);
  color: var(--ink);
}

#app .bar-control.icon-control {
  width: var(--control-height);
  min-width: var(--control-height);
  flex: 0 0 var(--control-height);
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

#app .bar-control.icon-control img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: invert(1);
}

.site-footer {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0 var(--space-small);
  padding: 3px 8px;
  background: #000;
  color: #fff;
  font-size: 11px;
  line-height: var(--control-compact);
}

.site-identity, .site-author {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-small);
  white-space: nowrap;
}

.site-author>span, .site-credit, .site-privacy {
  display: inline-flex;
  align-items: center;
  min-height: var(--control-compact);
  line-height: var(--control-compact);
}

.site-credit {
  padding-inline: var(--space-small);
}

.site-footer a {
  color: inherit;
  text-decoration: none;
}

.site-footer a:focus-visible {
  outline: 2px solid #549876;
  outline-offset: 2px;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer a.site-privacy:is(:hover,:focus-visible) {
  color: var(--control-selected);
  text-decoration: none;
}

.site-footer a.bar-control {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.site-footer .site-privacy {
  color: #bbb;
}

.site-details, .site-details-inner {
  display: contents;
}
#app .bar-control[data-footer-toggle] {
  display: none;
}
/* Compact page chrome. Footer stacking also follows measured control widths. */
@media (max-width:720px) {
  #app>footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: var(--space-small) var(--space-normal);
    padding: 3px 6px;
  }

  footer #status {
    display: none;
  }

  footer .depth-controls, footer .canvas-controls {
    flex: 0 0 auto;
  }

  #app>footer.controls-stacked {
    flex-direction: column;
    align-items: center;
  }

  header .preset-toolbar {
    justify-content: flex-start;
  }

  .site-footer {
    position: relative;
    flex-direction: column;
    gap: 0;
  }
  #app .bar-control[data-footer-toggle] {
    display: inline-flex;
    position: absolute;
    right: var(--space-small);
    top: 3px;
  }
  .site-details {
    display: grid;
    width: 100%;
    grid-template-rows: 1fr;
    transition: grid-template-rows var(--transition-duration) ease, opacity var(--transition-duration) ease;
  }
  .site-details.is-collapsed {
    grid-template-rows: 0fr;
    opacity: 0;
  }
  .site-details-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0 var(--space-small);
    min-height: 0;
    overflow: hidden;
  }
}

.rule-heading .rule-parameter, .rule-heading>b {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 var(--control-compact);
  width: var(--control-compact);
  height: var(--control-compact);
}

.rule-heading .rule-parameter .parameter-icon, .rule-heading>b .action-icon {
  display: block;
  width: calc(var(--control-compact) * var(--icon-padding-scale));
  height: calc(var(--control-compact) * var(--icon-padding-scale));
  max-width: none;
  flex-shrink: 0;
  object-fit: contain;
}

.rule-color-sample {
  display: block;
  flex: 0 0 var(--control-compact);
  width: var(--control-compact);
  height: var(--control-compact);
  background: conic-gradient(#ddd 25%,#fff 0 50%,#ddd 0 75%,#fff 0) 0 0/8px 8px;
  box-shadow: 0 0 0 1px var(--line);
}

.rule-color-sample>span {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--sample-color);
}

.rule-item .constraint-sliders {
  display: grid;
  grid-template-columns: minmax(0,1fr);
  gap: var(--space-small);
  width: 100%;
}

.rule-item .constraint-sliders input[type=range] {
  width: 100%;
  min-width: 0;
  margin: 0;
  padding: 0;
  background: transparent;
  border: 0;
}

/* Labels compensate for the 10px transparent margin on each side of 70px artwork.
 * Scaling the image preserves the label's layout box and centers its visible ink.
 * Constraint headings already use the same factor in their image dimensions.
 */
.color-value-icon>.parameter-icon,
.depth-label>.action-icon,
.alpha-indicator>.parameter-icon,
.background-label>.action-icon {
  transform: scale(var(--icon-padding-scale));
  transform-origin: center;
}

.component>span>.parameter-icon,
.interpolation-kind-label>.action-icon {
  transform: scale(calc(var(--icon-padding-scale) * .7071067812));
  transform-origin: center;
}

.panel-header .panel-drag-handle {
  cursor: grab;
  touch-action: none;
}

.interpolation-count-row,
.interpolation-count-row .interpolation-kind-label {
  height: var(--control-compact);
}
/* The horizontal children artwork fits the same label column as both hearts. */
.children-count-label {
  background: url('../assets/icons/children_horizontal.png') center / var(--control-normal) auto no-repeat;
  transform: scale(calc(var(--icon-padding-scale) * .6));
}

.rule-heading input.rule-enabled {
  flex: 0 0 var(--control-compact);
  width: var(--control-compact);
  height: var(--control-compact);
  transform: scale(.72);
  transform-origin: center;
  margin: 0 0 0 var(--space-small);
  padding: 0;
  accent-color: var(--accent);
  cursor: pointer;
}
#connections path.restriction.inactive {
  stroke: #ccc;
  stroke-dasharray: none;
}
#connections polygon.restriction-arrow.inactive {
  fill: #ccc;
}

/* Independent scene filters retain all model geometry and depth selections. */
#world.colors-hidden #nodes,
#world.wiring-hidden #connections,
#world.wiring-hidden #groups,
#world.wiring-hidden [data-panel-key],
#world.wiring-hidden #panel-bridges,
#world.wiring-hidden .text-block-links,
#world.wiring-hidden .text-block-connector {
  visibility: hidden;
  pointer-events: none;
}
.depth-controls .preview-label {
  margin-left: var(--space-small);
}

.startup-logo {
  filter: invert(var(--startup-logo-invert,0));
  position: fixed;
  inset: 0;
  z-index: 2147483647;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.startup-logo img {
  display: block;
  width: min(1300px, calc(100% - 32px));
  height: auto;
}
.startup-logo-playing {
  animation: startup-logo-dismiss 2s ease-out forwards;
}
@keyframes startup-logo-dismiss {
  from { opacity: 1; filter: blur(0); }
  to { opacity: 0; filter: blur(24px); }
}

/* Storage bands: shared geometry, then the contents of each band. */
header .shared-toolbar {
  display: block;
  padding: 0;
}

header .shared-toolbar .backup-controls,
header .shared-toolbar .preset-controls {
  display: flex;
  width: 100%;
  min-width: 0;
  padding: 3px 8px;
  align-items: flex-start;
  justify-content: flex-start;
}

header .shared-toolbar .backup-controls {
  background: #202020;
  gap: 8px;
}

header .shared-toolbar .preset-controls {
  background: #404040;
  flex: none;
  flex-wrap: wrap;
  gap: 4px 12px;
}

header .storage-label {
  flex: none;
  color: #bbb;
  font-size: 11px;
  font-weight: 400;
  line-height: var(--control-compact);
  cursor: default;
  padding-right: 4px;
}

header .preset-content { display: contents; }

header .preset-content .preset-selection,
header .preset-content .preset-actions {
  display: flex;
  align-items: center;
  gap: var(--space-small);
  width: auto;
}

header .preset-content .preset-selection { flex: 0 0 auto; }

header .preset-content .preset-actions {
  flex: 1 1 180px;
  min-width: 0;
  max-width: 360px;
}

header .preset-content .preset-combo {
  display: flex;
  flex: 1 1 240px;
  min-width: 40px;
  width: auto;
}

header .preset-content .preset-actions > button { flex-shrink: 0; }

.group-editor .shape-presets {
  grid-template-columns: repeat(6,minmax(var(--control-normal),1fr));
}

/* Project navigation stays outside the canvas and scrolls on narrow screens. */
.connection-reassigning #groups :is(.receiver,.link-control) { pointer-events:none; }
.project-tabs { --paper:transparent; --control-text:#fff; --control-hover:#555; display:flex; align-items:center; gap:4px; padding:4px 8px 0; min-width:0; background:#606060; }
.project-tab-list { display:flex; gap:3px; flex:1; min-width:0; overflow-x:auto; scrollbar-width:thin; scrollbar-color:#999 #606060; touch-action:pan-x; transform:rotateX(180deg); }
#app .project-tab {
  --tab-contrast: #fff;
  --tab-icon-white: 1;
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 4px;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  height: 26px;
  min-height: 26px;
  max-height: 26px;
  line-height: 26px;
  padding: 0 4px 0 10px;
  border-radius: 4px 4px 0 0;
  color: #fff;
  background: #808080;
  cursor: pointer;
  touch-action: pan-x;
  transform: rotateX(180deg);
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

#app .project-tab[aria-selected=true] {
  --tab-contrast: var(--active-tab-text);
  --tab-icon-white: var(--startup-logo-invert);
  background: var(--active-tab-background);
  color: var(--active-tab-text);
}

body.project-tab-dragging, body.project-tab-dragging * { cursor:grabbing !important; }
.project-tab-label { overflow:hidden; text-overflow:ellipsis; min-width:0; }
#app .project-tab [data-close-tab] { flex-shrink:0; color:var(--tab-contrast); background:transparent; }
#app .project-tab [data-close-tab] img { filter:brightness(0) invert(var(--tab-icon-white)); }
#app .project-tab [data-close-tab]:is(:hover,:focus-visible) { background:var(--tab-contrast); }
#app .project-tab [data-close-tab]:is(:hover,:focus-visible) img { filter:brightness(0) invert(calc(1 - var(--tab-icon-white))); }
#app .project-tab.tab-dragging { opacity:.55; }
#app .project-tabs > button { flex-shrink:0; }

/* Control boxes. Component rules select 18px or 30px through --control-height.
 * Keep artwork dimensions/transforms independent of these layout dimensions.
 * Swatches and geometry grips own their sizes; steppers may be narrower.
 * The explicit app scope wins over component sizing without !important.
 * Colour popups are mounted on body, outside #app, and share these row sizes.
 */
#app button:not(.swatch):not(.color-resize):not(.color-shape-handle):not(.text-block-resize):not(.parameter-stepper),
.css-color-palette button {
  min-width: var(--control-height,var(--control-normal));
}

#app button:not(.swatch):not(.color-resize):not(.color-shape-handle),
#app select,
.css-color-palette button {
  height: var(--control-height,var(--control-normal));
  min-height: var(--control-height,var(--control-normal));
  max-height: var(--control-height,var(--control-normal));
}

/* Explicit hiding overrides component display rules. Keep the original selector
 * specificity; animated storage bands use collapsed grids and inert instead.
 * The editor[hidden] rule also overrides inline display and remains separate.
 */
.node .stop[hidden],
#mode-banner[hidden], #empty[hidden],
.node .node-indicator[hidden],
.background-label[hidden],
.alpha-indicator[hidden],
.node[hidden],
.node-function[hidden],
.css-color-palette[hidden],
.node .hex input[data-inline-hex][hidden],
.rule-values[hidden],
.parameter-section[hidden], .color-pickers[hidden],
.color-names[hidden], .node .node-caption[hidden],
.node .color-resize[hidden],
.node-meta .kind[hidden],
.operations-editor>[hidden],
.editor .code-fields[hidden],
.editor .user-name-editor[hidden],
.text-block[hidden], .text-block-menu[hidden], .text-block-menu [hidden],
.operations-editor .interpolation-section[hidden],
#app header [data-factory-reset][hidden],
header .shared-toolbar [hidden],
.group-shape-body[hidden],
#app .project-tabs > button[hidden] {
  display: none;
}

/* Flip the scroll container and its tabs back so the native scrollbar sits above. */
#app .project-tab [data-tab-drag] {
  touch-action: none;
  cursor: grab;
  background: transparent;
}
#app .project-tab [data-tab-drag] img {
  filter: brightness(0) invert(var(--tab-icon-white));
}
#app .project-tab [data-tab-drag]:is(:hover,:focus-visible) {
  background: var(--tab-contrast);
}
#app .project-tab [data-tab-drag]:is(:hover,:focus-visible) img {
  filter: brightness(0) invert(calc(1 - var(--tab-icon-white)));
}
#app .project-tab [data-close-tab] { touch-action: none; }
body.project-tab-dragging #app .project-tab [data-tab-drag] { cursor: grabbing; }