/* Legacy layout and paint share one cascade layer. Theme recipes own opt-in appearance. */
/* This accessibility floor must outlive the shared theme's compact Studio
   density. Paint still belongs to the theme; only this new editor is scoped. */
body[data-field-kit-page='motion-lab']
  .shared-actor-study
  :is(button, select, input[type='number'], textarea, summary, label.check) {
  min-height: 44px;
}
body[data-field-kit-page='motion-lab'] .shared-actor-study label.check {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 44px;
  cursor: pointer;
}
@layer legacy {
  .shared-actor-study {
    min-width: 0;
    margin-block: 2rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 0.4rem;
    font: 400 var(--fk-text-body, 1rem) / var(--fk-leading-body, 1.5) var(--fk-font-ui, sans-serif);
    overflow-wrap: anywhere;
  }
  .shared-actor-study summary {
    min-height: 44px;
    padding-block: 0.5rem;
    cursor: pointer;
    font-weight: 600;
  }
  .shared-actor-controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
    gap: 1rem;
  }
  .shared-actor-study .field {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    min-width: 0;
    margin-block: 0.5rem;
  }
  .shared-actor-actions,
  .shared-actor-specimens {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    margin-block: 1rem;
  }
  .shared-actor-study :is(button, select, input[type='number'], textarea) {
    min-width: 0;
    max-width: 100%;
    min-height: 44px;
    padding: 0.5rem;
    font: inherit;
    color: var(--ink);
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 0.2rem;
  }
  .shared-actor-study textarea {
    width: 100%;
    resize: vertical;
    font-family: var(--fk-font-mono, monospace);
  }
  .shared-actor-study :is(summary, textarea):focus-visible {
    outline: 3px solid var(--fk-accent, #4b849d);
    outline-offset: 4px;
  }
  .shared-actor-study figure {
    margin: 0;
    flex: 0 0 auto;
  }
  .shared-actor-study canvas {
    display: block;
    max-width: none;
    image-rendering: pixelated;
  }
  .shared-actor-study figcaption {
    margin-block-start: 0.5rem;
  }
}
@layer legacy {
  :root {
    color-scheme: light;
    --paper: #f4f2e9;
    --ink: #1f2a2d;
    --muted: #697575;
    --line: #d7ddd6;
    --accent: #efc74f;
    --wall: #82a8b5;
    --slow: #a0ad6a;
    --danger: #d77b68;
    --arena: #0f1b23;
    font-family: var(--fk-font-ui, sans-serif);
    font-synthesis: none;
  }
  * {
    box-sizing: border-box;
  }
  body {
    margin: 0;
    background: var(--paper);
    color: var(--ink);
  }
  button,
  input,
  select {
    font: inherit;
  }
  button,
  select,
  input[type='range'],
  input[type='checkbox'] {
    cursor: pointer;
  }
  button {
    color: inherit;
  }
  button:focus-visible,
  select:focus-visible,
  input:focus-visible,
  canvas:focus-visible,
  a:focus-visible {
    outline: 3px solid #4b849d;
    outline-offset: 4px;
  }
  button:disabled {
    opacity: 0.5;
    cursor: default;
  }
  [hidden] {
    display: none !important;
  }
  .workspace {
    max-width: 1480px;
    margin: auto;
    padding: 35px 42px 22px;
  }
  .page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 28px;
    padding-bottom: 27px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 26px;
  }
  .eyebrow,
  .section-index,
  .arena-heading,
  .readout-label,
  .page-footer,
  .scope-note,
  .asset-status,
  .control-hint,
  .material-legend {
    font-family: var(--fk-font-mono, monospace);
  }
  .eyebrow {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    margin: 0 0 11px;
    color: var(--muted);
  }
  h1 {
    font-family: var(--fk-font-ui, sans-serif);
    font-size: clamp(25px, 2.7vw, 39px);
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.05;
    margin: 0;
  }
  .scope-note {
    margin: 0;
    font-size: 10px;
    line-height: 1.7;
    white-space: nowrap;
  }
  .scope-note > span:last-child {
    display: block;
    color: var(--muted);
  }
  .status-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #77876f;
    margin-right: 7px;
  }
  .lab-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 272px;
    gap: 32px;
  }
  .preview-column {
    min-width: 0;
  }
  .arena-heading {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 12px;
  }
  .muted {
    color: var(--muted);
  }
  .arena-shell {
    position: relative;
    background: var(--arena);
    border: 1px solid #31414a;
    box-shadow: 0 8px 20px #14252b10;
    overflow: hidden;
  }
  .arena-shell canvas {
    width: 100%;
    aspect-ratio: 4/3;
    display: block;
    touch-action: none;
    outline-offset: -4px;
  }
  .arena-caption {
    position: absolute;
    bottom: 13px;
    left: 16px;
    right: 16px;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    pointer-events: none;
    color: #b9c3c8;
    font: 9px var(--fk-font-mono, monospace);
    letter-spacing: 0.07em;
    text-transform: uppercase;
    text-shadow: 0 1px 3px #000;
  }
  .arena-caption span {
    background: #0a151cc4;
    padding: 5px 7px;
    border: 1px solid #718c9728;
  }
  .telemetry {
    display: grid;
    grid-template-columns: 1.1fr 1fr 1fr;
    border-bottom: 1px solid var(--line);
    padding: 18px 0 15px;
    gap: 18px;
  }
  .telemetry-cell {
    position: relative;
    min-width: 0;
  }
  .telemetry-cell + .telemetry-cell {
    border-left: 1px solid var(--line);
    padding-left: 20px;
  }
  .readout-label {
    display: block;
    color: var(--muted);
    font-size: 9px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 7px;
  }
  .telemetry strong {
    font-family: var(--fk-font-mono, monospace);
    font-size: 19px;
    line-height: 1.15;
    white-space: nowrap;
    font-weight: 500;
  }
  .telemetry small {
    font-size: 9px;
    font-weight: 400;
    color: var(--muted);
    margin-left: 8px;
  }
  .speed-track {
    height: 2px;
    background: #dce0d8;
    margin-top: 10px;
    max-width: 150px;
    overflow: hidden;
  }
  .speed-track i {
    display: block;
    height: 100%;
    background: var(--ink);
    width: 0;
  }
  .detail-note {
    display: block;
    font-size: 10px;
    color: var(--muted);
    margin-top: 7px;
  }
  .direction-cell {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .compass {
    border: 1px solid #aebbb9;
    border-radius: 50%;
    width: 41px;
    height: 41px;
    flex: 0 0 41px;
    display: grid;
    place-items: center;
    position: relative;
  }
  .compass:before {
    position: absolute;
    content: '';
    height: 3px;
    width: 1px;
    background: var(--muted);
    top: 3px;
  }
  .compass i {
    font-size: 27px;
    font-style: normal;
    line-height: 1;
    display: block;
    transform-origin: 50% 50%;
  }
  .direction-cell strong {
    font-size: 14px;
  }
  .material-legend {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    padding: 13px 0;
    font-size: 9px;
    color: var(--muted);
  }
  .material-legend span {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--ink);
  }
  .material-legend em {
    font-family: var(--fk-font-ui, sans-serif);
    font-size: 11px;
    font-style: normal;
  }
  .swatch {
    width: 7px;
    height: 7px;
    display: inline-block;
  }
  .swatch.wall {
    background: var(--wall);
  }
  .swatch.slow {
    background: var(--slow);
  }
  .swatch.danger {
    background: var(--danger);
  }
  .transport {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    border-top: 1px solid var(--line);
    padding-top: 15px;
  }
  .transport-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
  }
  .button {
    border: 1px solid #bdc8c4;
    background: transparent;
    border-radius: 3px;
    font-size: 11px;
    padding: 10px 15px;
    min-height: 42px;
    white-space: nowrap;
  }
  .button:hover {
    background: #e8ece3;
  }
  .button-primary {
    background: var(--ink);
    color: #fff;
    border-color: var(--ink);
    min-width: 75px;
  }
  .button-primary:hover {
    background: #364548;
  }
  .check {
    display: flex;
    gap: 7px;
    align-items: center;
    font-size: 11px;
    line-height: 1.3;
    cursor: pointer;
  }
  .check input {
    accent-color: #334951;
    width: 14px;
    height: 14px;
    margin: 0;
  }
  .transport .check {
    margin-left: 6px;
  }
  .touch-controls {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .dpad {
    display: grid;
    grid-template: repeat(2, 30px) / repeat(3, 30px);
    gap: 3px;
    touch-action: none;
  }
  .dpad button {
    background: #e8ece3;
    border: 1px solid #c7d0c8;
    border-radius: 3px;
    line-height: 1;
    font-size: 15px;
    padding: 0;
  }
  .dpad button:hover,
  .dpad button.is-held {
    background: var(--accent);
  }
  .dpad-up {
    grid-column: 2;
    grid-row: 1;
  }
  .dpad-left {
    grid-column: 1;
    grid-row: 2;
  }
  .dpad-down {
    grid-column: 2;
    grid-row: 2;
  }
  .dpad-right {
    grid-column: 3;
    grid-row: 2;
  }
  .hold-button {
    font-size: 10px;
    background: transparent;
    border: 1px solid #bdc8c4;
    border-radius: 3px;
    min-height: 44px;
    padding: 6px 10px;
    touch-action: none;
    user-select: none;
  }
  .hold-button small {
    display: block;
    font-size: 8px;
    color: var(--muted);
    margin-top: 4px;
  }
  .hold-button.is-held {
    background: var(--accent);
    border-color: #af9844;
  }
  .control-hint {
    font-size: 9px;
    color: var(--muted);
    line-height: 1.9;
    margin: 14px 0 0;
  }
  .control-hint kbd {
    font: inherit;
    font-size: 8px;
    border: 1px solid #cbd2ca;
    border-radius: 2px;
    display: inline-block;
    min-width: 14px;
    text-align: center;
    padding: 0 2px;
    margin: 0 1px;
    background: #fff5;
  }
  .asset-status {
    font-size: 9px;
    line-height: 1.65;
    color: var(--muted);
    margin: 9px 0 0;
  }
  .controls {
    border-left: 1px solid var(--line);
    padding-left: 25px;
  }
  /* The grouped resize target must leave room for the native control focus ring. */
  .controls :is(.range-field, .field, .segmented label) {
    scroll-margin-block: 8px;
  }
  .control-section + .control-section {
    margin-top: 20px;
    padding-top: 17px;
    border-top: 1px solid var(--line);
  }
  .section-index {
    font-size: 9px;
    letter-spacing: 0.12em;
    color: var(--muted);
    text-transform: uppercase;
    margin: 0 0 15px;
  }
  .field {
    display: block;
    font-size: 11px;
    margin-bottom: 12px;
  }
  .field select {
    display: block;
    width: 100%;
    border: 1px solid #c2ccc7;
    border-radius: 3px;
    background: #f9faf6;
    color: var(--ink);
    font-size: 11px;
    padding: 8px 25px 8px 9px;
    min-height: 37px;
    margin-top: 6px;
  }
  .style-field {
    border: 0;
    margin: 0 0 14px;
    padding: 0;
    min-width: 0;
  }
  .style-field legend {
    font-size: 11px;
    padding: 0;
    margin-bottom: 7px;
  }
  .segmented {
    display: flex;
    border: 1px solid #c2ccc7;
    border-radius: 3px;
    padding: 2px;
    background: #e8ece3;
    gap: 2px;
  }
  .segmented label {
    position: relative;
    flex: 1;
    cursor: pointer;
  }
  .segmented input {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
  }
  .segmented span {
    display: block;
    padding: 7px 3px;
    text-align: center;
    font-size: 10px;
    border-radius: 2px;
  }
  .segmented input:checked + span {
    background: #fff;
    box-shadow: 0 1px 3px #152b2615;
  }
  .segmented input:focus-visible + span {
    outline: 3px solid #4b849d;
    outline-offset: 1px;
  }
  .range-field {
    display: block;
    margin-top: 13px;
  }
  .range-field > span {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    gap: 10px;
  }
  .range-field output {
    font: 10px var(--fk-font-mono, monospace);
    color: var(--muted);
  }
  .range-field input {
    display: block;
    width: 100%;
    margin: 9px 0 0;
    accent-color: #334951;
    height: 15px;
  }
  .setting-note {
    font-size: 10px;
    color: var(--muted);
    line-height: 1.55;
    margin: 10px 0 0;
  }
  .motion-event {
    background: #e7ece4;
    border-left: 2px solid #94a38b;
    padding: 10px;
    font-size: 10px;
    line-height: 1.55;
    min-height: 49px;
    margin: 14px 0 0;
  }
  .layer-checks {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 13px 6px;
  }
  .page-footer {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    color: var(--muted);
    font-size: 9px;
    line-height: 1.7;
    border-top: 1px solid var(--line);
    padding-top: 16px;
    margin-top: 24px;
  }
  .page-footer a {
    color: inherit;
    text-underline-offset: 3px;
  }
  .load-error {
    padding: 16px;
    border: 1px solid #a75741;
    background: #f9e7df;
    margin-bottom: 20px;
    font-size: 13px;
    line-height: 1.6;
  }
  @media (min-width: 1450px) {
    .arena-shell {
      max-width: 1060px;
    }
  }
  @media (max-width: 1100px) {
    .workspace {
      padding: 25px;
    }
    .lab-grid {
      grid-template-columns: minmax(0, 1fr) 245px;
      gap: 23px;
    }
    .controls {
      padding-left: 20px;
    }
    .transport {
      flex-wrap: wrap;
    }
    .touch-controls {
      margin-left: auto;
    }
    .telemetry strong {
      font-size: 16px;
    }
    .telemetry small {
      font-size: 8px;
      margin-left: 5px;
    }
    .direction-cell {
      gap: 8px;
    }
    .compass {
      width: 33px;
      height: 33px;
      flex-basis: 33px;
    }
    .direction-cell strong {
      font-size: 12px;
    }
  }
  @media (max-width: 900px) {
    .workspace {
      padding: 23px;
    }
    .page-header {
      align-items: flex-start;
      gap: 16px;
    }
    .scope-note {
      font-size: 9px;
    }
    .lab-grid {
      grid-template-columns: 1fr;
      gap: 25px;
    }
    .controls {
      padding-left: 0;
      border-left: 0;
      display: grid;
      grid-template-columns: 1.1fr 1fr 1fr;
      gap: 22px;
      border-top: 1px solid var(--line);
      padding-top: 20px;
    }
    .control-section + .control-section {
      margin: 0;
      padding: 0;
      border: 0;
    }
    .layer-checks {
      grid-template-columns: 1fr;
    }
    .arena-shell {
      max-width: none;
    }
    .telemetry strong {
      font-size: 20px;
    }
    .direction-cell strong {
      font-size: 15px;
    }
    .telemetry small {
      font-size: 10px;
    }
    .transport {
      flex-wrap: nowrap;
    }
  }
  @media (max-width: 600px) {
    .workspace {
      padding: 20px 14px 17px;
    }
    .page-header {
      display: block;
      padding-bottom: 20px;
      margin-bottom: 21px;
    }
    .page-header h1 {
      font-size: 29px;
    }
    .scope-note {
      margin-top: 13px;
    }
    .scope-note > span:last-child {
      display: inline;
      margin-left: 10px;
    }
    .lab-grid {
      gap: 22px;
    }
    .arena-caption {
      left: 8px;
      right: 8px;
      bottom: 8px;
      font-size: 7px;
      gap: 4px;
    }
    .arena-caption span {
      padding: 4px;
    }
    .telemetry {
      gap: 10px;
      padding: 15px 0;
    }
    .telemetry-cell + .telemetry-cell {
      padding-left: 10px;
    }
    .telemetry strong {
      font-size: 15px;
    }
    .telemetry small {
      font-size: 8px;
      display: block;
      margin: 5px 0 0;
    }
    .readout-label {
      font-size: 8px;
    }
    .direction-cell {
      gap: 6px;
    }
    .direction-cell strong {
      font-size: 10px;
    }
    .compass {
      width: 27px;
      height: 27px;
      flex-basis: 27px;
    }
    .compass i {
      font-size: 22px;
    }
    .detail-note {
      font-size: 8px;
    }
    .material-legend {
      gap: 12px;
    }
    .material-legend em {
      display: block;
      flex-basis: 100%;
      font-size: 10px;
    }
    .transport {
      align-items: stretch;
      flex-direction: column;
      gap: 14px;
    }
    .transport-actions {
      gap: 9px;
    }
    .transport-actions .button {
      flex: 1;
      min-height: 44px;
    }
    .transport .check {
      margin-left: 5px;
    }
    .touch-controls {
      margin: 0;
      justify-content: center;
      gap: 14px;
    }
    .dpad {
      grid-template: repeat(2, 44px) / repeat(3, 44px);
      gap: 4px;
    }
    .hold-button {
      height: 58px;
      padding: 7px 12px;
      font-size: 11px;
    }
    .hold-button small {
      font-size: 9px;
    }
    .control-hint {
      font-size: 8px;
    }
    .controls {
      grid-template-columns: 1fr 1fr;
      gap: 22px 18px;
    }
    .controls .control-section:first-child {
      grid-column: 1/-1;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0 14px;
    }
    .controls .control-section:first-child .section-index,
    .controls .control-section:first-child .style-field,
    .controls .control-section:first-child .setting-note {
      grid-column: 1/-1;
    }
    .controls .control-section:first-child .range-field {
      margin-top: 0;
      padding-top: 2px;
    }
    .range-field > span {
      flex-direction: column;
      gap: 5px;
    }
    .controls .control-section:first-child .range-field > span {
      flex-direction: row;
    }
    .segmented span {
      padding: 10px 3px;
    }
    .field select {
      min-height: 42px;
    }
    .layer-checks {
      gap: 16px;
    }
    .page-footer {
      display: block;
      font-size: 8px;
    }
    .page-footer > span {
      display: block;
    }
    .page-footer > span + span {
      margin-top: 5px;
    }
  }
  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      scroll-behavior: auto !important;
      animation: none !important;
      transition: none !important;
    }
  }
  .field {
    min-width: 0;
  }
  .field select {
    min-width: 0;
  }
  .arena-heading {
    align-items: center;
    gap: 10px;
  }
  .movement-selector {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 8px;
    color: var(--muted);
    letter-spacing: 0;
    text-transform: none;
    min-width: 0;
  }
  .movement-selector select {
    font: 10px var(--fk-font-mono, monospace);
    min-width: 0;
    min-height: 30px;
    max-width: 170px;
    color: var(--ink);
    background: #f9faf6;
    border: 1px solid #bdc8c4;
    border-radius: 3px;
    padding: 4px;
  }
  .turn-queue-readout {
    font: 10px var(--fk-font-mono, monospace);
    line-height: 1.6;
    margin: 10px 0 0;
    min-height: 16px;
    color: var(--muted);
    overflow-wrap: anywhere;
  }
  .control-section {
    min-width: 0;
  }
  .full-width {
    grid-column: 1/-1;
  }
  .equip-row {
    display: flex;
    align-items: flex-end;
    gap: 9px;
    margin-bottom: 10px;
  }
  .equip-row .field {
    flex: 1;
    margin: 0;
    min-width: 0;
  }
  .equip-row .button {
    padding-inline: 12px;
    min-height: 37px;
  }
  .collection-status {
    font-size: 11px;
    line-height: 1.55;
    margin: 9px 0;
    overflow-wrap: anywhere;
  }
  .unlock-conditions {
    font-size: 10px;
    line-height: 1.55;
    padding-left: 16px;
    margin: 8px 0;
    color: var(--muted);
  }
  .unlock-conditions li + li {
    margin-top: 5px;
  }
  .inspection-card {
    border: 1px solid #c5d0c9;
    border-radius: 3px;
    padding: 8px;
    background: #e9ede5;
    margin: 13px 0;
  }
  .inspection-heading {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font: 8px var(--fk-font-mono, monospace);
    color: var(--muted);
    margin-bottom: 7px;
  }
  .inspection-card canvas {
    display: block;
    width: 100%;
    aspect-ratio: 5/4;
    background: var(--arena);
    margin-bottom: 9px;
    border-radius: 2px;
  }
  .inspection-card .check {
    font-size: 10px;
  }
  .rotor-controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 10px;
  }
  .rotor-controls .range-field {
    margin: 0 0 5px;
  }
  .family-button {
    width: 100%;
    margin: -3px 0 14px;
    white-space: normal;
  }
  .quiet-button {
    margin-top: 8px;
    font-size: 10px;
    white-space: normal;
  }
  .background-field {
    margin-top: 20px;
  }
  .background-field input {
    display: block;
    width: 100%;
    min-width: 0;
    font-size: 10px;
    line-height: 1.6;
    margin-top: 7px;
  }
  .background-field input::file-selector-button {
    font: inherit;
    padding: 7px;
    border: 1px solid #bdc8c4;
    background: #f9faf6;
    border-radius: 3px;
    margin-right: 7px;
  }
  .background-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
  }
  .background-row .field {
    flex: 1;
    margin: 0;
    min-width: 0;
  }
  .background-row .button {
    padding-inline: 10px;
    min-height: 37px;
  }
  .control-section .setting-note {
    overflow-wrap: anywhere;
  }
  .control-section > .button {
    max-width: 100%;
    white-space: normal;
  }
  .control-section .range-field > span {
    flex-wrap: wrap;
  }
  @media (min-width: 901px) {
    .workspace {
      max-width: min(1480px, calc((100svh - 255px) * 1.333333 + 390px));
    }
    .controls {
      max-height: calc(100svh - 190px);
      overflow-y: auto;
      overscroll-behavior: contain;
      scrollbar-width: thin;
      padding-right: 6px;
    }
    .arena-shell {
      max-width: calc((100svh - 220px) * 1.333333);
    }
  }
  @media (max-width: 900px) {
    .arena-shell {
      max-width: min(100%, max(200px, calc((100svh - 195px) * 1.333333)));
      margin-inline: auto;
    }
    .controls {
      grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) minmax(0, 1fr);
    }
  }
  @media (max-width: 600px) {
    .controls {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .controls .control-section:first-child {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }
  @media (orientation: landscape) and (max-height: 500px) and (min-width: 600px) {
    .workspace {
      padding: 10px 15px;
    }
    .page-header {
      align-items: center;
      padding-bottom: 8px;
      margin-bottom: 10px;
      gap: 15px;
    }
    .eyebrow {
      display: none;
    }
    .page-header h1 {
      font-size: 22px;
    }
    .scope-note {
      font-size: 8px;
      line-height: 1.4;
    }
    .lab-grid {
      grid-template-columns: minmax(0, 1fr) 220px;
      gap: 14px;
    }
    .arena-heading {
      font-size: 8px;
      margin-bottom: 6px;
    }
    .arena-shell {
      width: min(100%, calc((100svh - 94px) * 1.333333));
      max-width: none;
      margin-inline: auto;
    }
    .controls {
      display: block;
      border-top: 0;
      border-left: 1px solid var(--line);
      padding: 0 4px 0 12px;
      max-height: calc(100svh - 60px);
      overflow-y: auto;
      overscroll-behavior: contain;
      scrollbar-width: thin;
    }
    .control-section + .control-section {
      margin-top: 13px;
      padding-top: 12px;
      border-top: 1px solid var(--line);
    }
    .section-index {
      margin-bottom: 9px;
    }
    .field {
      margin-bottom: 8px;
    }
    .field select {
      padding-block: 6px;
      min-height: 32px;
    }
    .range-field {
      margin-top: 10px;
    }
    .layer-checks {
      grid-template-columns: 1fr 1fr;
    }
    .telemetry {
      padding: 12px 0;
    }
    .page-footer {
      margin-top: 18px;
    }
    .arena-caption {
      font-size: 7px;
      left: 8px;
      right: 8px;
      bottom: 8px;
    }
  }
  @media (max-width: 360px) {
    .scope-note {
      white-space: normal;
    }
    .scope-note > span:last-child {
      display: block;
      margin-left: 0;
    }
    .telemetry {
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 7px;
    }
    .telemetry-cell + .telemetry-cell {
      padding-left: 8px;
    }
    .telemetry strong {
      font-size: 13px;
      white-space: normal;
      overflow-wrap: anywhere;
      line-height: 1.3;
    }
    .direction-cell {
      gap: 4px;
    }
    .direction-cell strong {
      font-size: 9px;
    }
    .compass {
      width: 22px;
      height: 22px;
      flex-basis: 22px;
    }
    .compass i {
      font-size: 19px;
    }
    .touch-controls {
      flex-wrap: wrap;
      gap: 10px;
    }
    .touch-controls .dpad {
      width: 100%;
      flex-basis: 100%;
      justify-content: center;
    }
    .hold-button {
      min-width: 100px;
    }
    .control-hint {
      overflow-wrap: anywhere;
    }
    .controls .control-section:first-child .range-field > span {
      flex-wrap: wrap;
      gap: 4px;
    }
  }
  @media (min-width: 901px) {
    .arena-shell {
      max-width: calc((100svh - 245px) * 1.333333);
    }
  }
  @media (max-width: 600px) {
    .arena-heading {
      flex-wrap: wrap;
      font-size: 8px;
      gap: 7px;
    }
    .movement-selector {
      order: 3;
      flex-basis: 100%;
      justify-content: space-between;
    }
    .movement-selector select {
      flex: 1;
      max-width: 210px;
      min-height: 36px;
    }
    .turn-queue-readout {
      font-size: 9px;
    }
  }
  @media (orientation: landscape) and (max-height: 500px) and (min-width: 600px) {
    .arena-heading {
      flex-wrap: nowrap;
      gap: 6px;
    }
    .movement-selector {
      font-size: 0;
      gap: 0;
    }
    .movement-selector select {
      font-size: 9px;
      min-height: 26px;
      max-width: 150px;
    }
    .arena-shell {
      width: min(100%, calc((100svh - 113px) * 1.333333));
    }
  }
  .ability-transport {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin: 12px 0 0;
  }
  .ability-transport .button {
    font-size: 10px;
    min-height: 38px;
    padding: 8px 12px;
  }
  .ability-readout {
    font: 10px var(--fk-font-mono, monospace);
    line-height: 1.6;
    margin: 9px 0 0;
    overflow-wrap: anywhere;
  }
  .ability-preset-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
  }
  .ability-preset-actions .button {
    font-size: 9px;
    padding: 8px;
    white-space: normal;
    flex: 1;
  }
  .ability-controls > .check {
    margin-bottom: 13px;
  }
  .ability-controls .setting-note {
    line-height: 1.6;
  }
  @media (max-width: 600px) {
    .ability-transport .button {
      flex: 1;
      min-width: 85px;
      white-space: normal;
    }
    .ability-readout {
      font-size: 9px;
    }
    .ability-controls .ability-preset-actions {
      display: flex;
    }
    .controls .control-section:nth-child(2) {
      grid-column: 1/-1;
    }
  }

  .rotor-editor {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    border-top: 1px solid var(--line);
    padding-top: 12px;
  }
  .rotor-editor[hidden] {
    display: none;
  }
  .rotor-editor textarea {
    box-sizing: border-box;
    width: 100%;
    resize: vertical;
    font: inherit;
  }
  .rotor-editor input[type='number'],
  .rotor-editor select,
  .rotor-editor button,
  .rotor-editor .check,
  .rotor-editor summary {
    min-height: 44px;
  }
  .rotor-editor input[type='number'] {
    box-sizing: border-box;
    width: 100%;
    min-width: 0;
    margin-top: 6px;
    padding: 8px;
    color: var(--fk-text, var(--ink));
    background: var(--fk-panel, var(--paper));
    border: 1px solid var(--fk-line, var(--line));
  }
  .rotor-editor textarea:focus-visible,
  .rotor-editor summary:focus-visible {
    outline: 3px solid #4b849d;
    outline-offset: 4px;
  }
  .rotor-editor-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .rotor-editor summary {
    cursor: pointer;
    margin-bottom: 12px;
  }

  /* Motion Lab host reading roles. The arena and inspection artwork retain their
   existing bitmap dimensions, CSS scale and authored visual controls. */
  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(
      .telemetry small,
      .material-legend em,
      .hold-button small,
      #motion-display-notice,
      #motion-effects-notice,
      #inspection-status
    ) {
    font-family: var(--fk-font-ui);
    font-size: var(--fk-text-secondary);
    font-weight: 400;
    line-height: 1.45;
    letter-spacing: normal;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .section-index {
    font-family: var(--fk-font-ui);
    font-size: var(--fk-text-secondary);
    font-weight: 500;
    line-height: 1.45;
    letter-spacing: normal;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(.ability-readout, .motion-event, .operation-status) {
    font-family: var(--fk-font-ui);
    font-size: var(--fk-text-control);
    font-weight: 400;
    line-height: var(--fk-leading-body);
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .load-error {
    font-size: var(--fk-text-body);
    line-height: var(--fk-leading-body);
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(.telemetry strong, .turn-queue-readout) {
    font-family: var(--fk-font-mono);
    font-size: var(--fk-text-control);
    font-weight: 500;
    line-height: var(--fk-leading-control);
    font-variant-numeric: tabular-nums;
    font-feature-settings:
      'liga' 0,
      'calt' 0;
    letter-spacing: normal;
    white-space: normal;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(
      h1,
      p,
      li,
      label,
      legend,
      button,
      .arena-heading,
      .arena-caption,
      .telemetry strong,
      .inspection-heading,
      .page-footer,
      .load-error
    ) {
    overflow-wrap: anywhere;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(
      .page-header,
      .arena-heading,
      .transport,
      .touch-controls,
      .equip-row,
      .background-row,
      .inspection-heading,
      .page-footer
    ) {
    flex-wrap: wrap;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(
      .page-header > *,
      .arena-heading > *,
      .inspection-heading > *,
      .direction-cell > div,
      .transport-actions,
      .touch-controls,
      .page-footer > *
    ) {
    min-inline-size: 0;
    max-inline-size: 100%;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(.scope-note, button, select) {
    white-space: normal;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(button, select, input[type='file']) {
    min-inline-size: 0;
    max-inline-size: 100%;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .movement-selector {
    flex: 1 1 15rem;
    flex-wrap: wrap;
    gap: 8px;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .movement-selector select {
    flex: 1 1 13rem;
    max-width: 100%;
  }

  /* Reading the current state must not cover the craft, terrain or ability cues. */
  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .arena-caption {
    position: static;
    flex-wrap: wrap;
    padding: 8px;
    color: var(--fk-text);
    background: var(--fk-panel);
    text-shadow: none;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .arena-caption span {
    min-inline-size: 0;
    max-inline-size: 100%;
    background: var(--fk-panel-raised);
    border-color: var(--fk-line);
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .telemetry {
    grid-template-columns: repeat(auto-fit, minmax(min(160px, 100%), 1fr));
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    .telemetry-cell
    + .telemetry-cell {
    padding-left: 0;
    border-left: 0;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .telemetry small {
    display: block;
    margin: 5px 0 0;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .hold-button {
    height: auto;
    min-block-size: var(--fk-target-size);
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .dpad {
    grid-template:
      repeat(2, minmax(var(--fk-target-size), auto)) /
      repeat(3, var(--fk-target-size));
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .dpad button {
    min-inline-size: var(--fk-target-size);
    padding: 0;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .check {
    min-inline-size: var(--fk-target-size);
    min-block-size: var(--fk-target-size);
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .check input {
    flex: 0 0 auto;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .segmented {
    flex-wrap: wrap;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .segmented label {
    flex: 1 1 7rem;
    min-inline-size: 0;
    min-block-size: var(--fk-target-size);
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .segmented span {
    display: grid;
    align-content: center;
    min-block-size: var(--fk-target-size);
    font-family: var(--fk-font-ui);
    font-size: var(--fk-text-control);
    font-weight: 500;
    line-height: var(--fk-leading-control);
    overflow-wrap: anywhere;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    :is(.equip-row, .background-row)
    .field {
    flex: 1 1 11rem;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    .ability-preset-actions
    .button {
    flex: 1 1 10rem;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
    .background-field
    input::file-selector-button {
    min-block-size: var(--fk-target-size);
    max-inline-size: 100%;
    white-space: normal;
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .layer-checks {
    grid-template-columns: minmax(0, 1fr);
  }

  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .page-footer a {
    display: inline-flex;
    align-items: center;
    min-block-size: var(--fk-target-size);
    max-inline-size: 100%;
    font-family: var(--fk-font-ui);
    font-size: var(--fk-text-control);
    font-weight: 500;
    line-height: var(--fk-leading-control);
  }

  @media (max-width: 600px) {
    body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .controls,
    body.field-kit.field-kit-support[data-field-kit-page='motion-lab']
      .controls
      .control-section:first-child {
      grid-template-columns: minmax(0, 1fr);
    }
  }

  @media (max-width: 600px),
    (orientation: landscape) and (max-height: 500px) and (min-width: 600px) {
    body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .rotor-controls {
      grid-template-columns: minmax(0, 1fr);
    }
  }

  /* The startup gate must not introduce fieldset borders or intrinsic sizing. */
  .study-lock {
    min-inline-size: 0;
    margin: 0;
    padding: 0;
    border: 0;
  }
  #arena[aria-disabled='true'] {
    cursor: wait;
  }

  /* Full marker text belongs in the existing settings scroller, away from the
   arena and transport controls. This is ordinary text, not a live announcer. */
  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .ability-stage-legend {
    min-inline-size: 0;
    max-inline-size: 100%;
    border-block-start: 1px solid var(--wall);
    padding-block-start: 0.75rem;
    overflow-wrap: anywhere;
  }
  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] #ability-stage-heading {
    margin: 0 0 0.5rem;
    font: 600 var(--fk-text-control) / var(--fk-leading-control) var(--fk-font-ui);
  }
  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] #ability-stage-labels {
    margin: 0;
    padding-inline-start: 1.25rem;
    font: 400 var(--fk-text-body) / var(--fk-leading-body) var(--fk-font-ui);
  }
  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] #ability-stage-labels li {
    margin-block: 0.5rem;
    overflow-wrap: anywhere;
  }
  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] #ability-stage-labels span {
    display: block;
  }
  body.field-kit.field-kit-support[data-field-kit-page='motion-lab'] .ability-stage-state {
    color: var(--fk-muted);
  }
}