/* Iteria workbench: system typography and quiet surfaces shared with
   RokidDemo and Ontology-Studio. Colours identify selection and status. */
:root {
  color-scheme:light;
  --paper:#fcfcfb; --wash:#f4f3f0; --ink:#18181b; --muted:#6c6c71; --faint:#a9a9ae;
  --line:#e8e7e3; --line-strong:#cfcec9; --fill:#efeeea; --hover:#f6f5f2;
  --brand:#e8701f; --brand-soft:rgba(232,112,31,.09); --ok:#1f8a3f; --info:#2c6cc9;
  --operation:#b78045; --overlay:rgba(252,252,251,.94); --focus:#55555a;
  --side:284px; --top:52px;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
:root[data-theme="dark"] {
  color-scheme:dark;
  --paper:#121213; --wash:#0b0b0c; --ink:#ececec; --muted:#929297; --faint:#65656a;
  --line:rgba(255,255,255,.09); --line-strong:rgba(255,255,255,.2); --fill:#202022; --hover:#19191b;
  --brand:#ff8a3d; --brand-soft:rgba(255,138,61,.12); --ok:#4fc46f; --info:#6fa3f0;
  --overlay:rgba(18,18,19,.94); --focus:rgba(255,255,255,.45);
}
* {box-sizing:border-box;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;}
[hidden] {display:none!important;}
html,body {margin:0;height:100%;overflow:hidden;background:var(--paper);color:var(--ink);}
body {font:14px/1.5 var(--sans);font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased;}
button,input,select {font:inherit;color:inherit;}
button {border:0;background:transparent;padding:0;cursor:pointer;}
a {color:inherit;text-decoration:none;}
button:disabled,input:disabled {opacity:.4;cursor:default;}
:is(button,a,input,select):focus-visible {outline:2px solid var(--focus);outline-offset:3px;}
button,select,a {-webkit-tap-highlight-color:transparent;}
svg {fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.masthead {position:fixed;inset:0 0 auto;height:var(--top);padding:0 22px;z-index:20;display:flex;align-items:center;justify-content:space-between;background:var(--paper);border-bottom:1px solid var(--line);}
.brand {display:flex;align-items:center;gap:14px;white-space:nowrap;}
.brand strong {font-size:17px;font-weight:650;letter-spacing:-.015em;}
.brand-caption {font-size:14px;color:var(--muted);font-weight:400;}
.brand-caption::before {content:"/";margin-right:14px;color:var(--line-strong);}
.mast-right {display:flex;align-items:center;gap:14px;}
.connection {display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted);}
.live-dot,.map-dot {width:5px;height:5px;background:var(--ok);border-radius:50%;display:inline-block;flex:none;}
.header-button {font-size:12px;color:var(--muted);padding:5px 7px;border-radius:5px;}
.header-button:hover {color:var(--ink);background:var(--hover);}
#help-open {width:28px;height:28px;border:1px solid var(--line-strong);border-radius:50%;padding:0;}
#sidebar {position:fixed;top:var(--top);bottom:0;left:0;width:var(--side);padding:26px 20px 20px;overflow:auto;background:var(--paper);border-right:1px solid var(--line);z-index:8;}
.eyebrow {font-size:10px;font-weight:500;letter-spacing:.08em;color:var(--muted);margin:0 0 10px;}
.section-heading {display:flex;justify-content:space-between;align-items:center;margin:22px 0 10px;gap:8px;}
#sidebar>.section-heading:first-child {margin-top:0;}
.section-heading h2 {margin:0;font-size:10px;font-weight:600;letter-spacing:.075em;color:var(--muted);}
.section-heading>span {font-size:9px;color:var(--faint);letter-spacing:.06em;}
#sidebar-close {align-items:center;justify-content:center;width:24px;height:24px;border:1px solid var(--line);border-radius:5px;font-size:18px;color:var(--muted);}
.operations {display:flex;flex-direction:column;gap:6px;}
.operation {position:relative;text-align:left;display:flex;align-items:center;gap:12px;width:100%;padding:12px 10px;border:1px solid var(--line);border-radius:6px;transition:background .15s,border-color .15s;}
.operation:hover {background:var(--hover);border-color:var(--line-strong);}
.operation.selected {background:var(--brand-soft);border-color:var(--line-strong);}
.operation.selected::before {content:"";position:absolute;left:-1px;top:9px;bottom:9px;width:2px;background:var(--brand);border-radius:2px;}
.operation-item.expanded>.operation {border-radius:6px 6px 0 0;}
.operation-number {font-size:10px;color:var(--faint);align-self:flex-start;padding-top:3px;width:18px;flex:none;}
.operation-copy {min-width:0;flex:1;}
.operation b {font-size:12.5px;font-weight:500;display:block;}
.operation small {display:block;font-size:10px;color:var(--muted);margin-top:2px;}
.operation-duration {font-size:10px;color:var(--muted);margin-left:auto;white-space:nowrap;}
.operation-triangle {width:0;height:0;border-left:5px solid var(--op-color);border-top:3px solid transparent;border-bottom:3px solid transparent;}
.operation.playing .operation-triangle {width:6px;height:8px;border:0;background:linear-gradient(to right,var(--op-color) 0 2px,transparent 2px 4px,var(--op-color) 4px 6px);}
.recording-status {margin:6px 10px;font-size:10px;line-height:1.5;color:var(--muted);}
.recording-retry {margin:0 10px 6px;font-size:11px;text-decoration:underline;}
.view-pair {display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:0 0 12px;}
.view-button {display:flex;align-items:center;justify-content:center;gap:7px;border:1px solid var(--line-strong);border-radius:6px;padding:7px 8px;font-size:11px;}
.view-button:hover,.square:hover {background:var(--hover);}
.view-button.selected {background:var(--fill);}
.view-button svg {width:14px;height:14px;}
.room-tour {margin-bottom:12px;}
.tour-button {width:100%;justify-content:flex-start;}
.tour-button[aria-pressed="true"] {background:var(--brand-soft);border-color:var(--brand);}
#tour-duration {margin-left:auto;color:var(--muted);font-size:10px;}
#tour-status {margin:5px 0 0;font-size:10px;color:var(--muted);line-height:1.5;}
.view-label {display:block;font-size:11px;color:var(--muted);margin-bottom:5px;}
select {border:1px solid var(--line-strong);background:var(--paper);border-radius:6px;padding:7px 9px;font-size:12px;cursor:pointer;}
#room-view,#render-quality {width:100%;}
.render-quality-control {margin-top:14px;}
#render-quality-note {margin:6px 0 0;color:var(--muted);font-size:10px;line-height:1.5;}
.layers-heading {margin-top:20px;}
.switch-row {display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);padding:7px 0;position:relative;cursor:pointer;}
.switch-row input {position:absolute;right:0;width:28px;height:18px;opacity:0;cursor:pointer;}
.switch {width:27px;height:15px;border-radius:9px;background:var(--line-strong);position:relative;pointer-events:none;}
.switch::after {content:"";position:absolute;top:3px;left:3px;width:9px;height:9px;background:var(--paper);border-radius:50%;transition:transform .15s;}
.switch-row input:checked+.switch {background:var(--ink);}
.switch-row input:checked+.switch::after {transform:translateX(12px);}
.switch-row input:focus-visible+.switch {outline:2px solid var(--focus);outline-offset:3px;}
.room-map {border-top:1px solid var(--line);margin-top:20px;padding-top:16px;}
.map-heading {display:flex;align-items:center;justify-content:space-between;font-size:9px;letter-spacing:.075em;color:var(--muted);}
#minimap {width:100%;height:108px;display:block;stroke-width:0;margin-top:3px;}
.room-map p {font-size:10px;color:var(--muted);margin:4px 0 0;}
.placement-note {font-size:10px;color:var(--muted);line-height:1.7;margin:17px 0 0;}
.placement-note>span {color:var(--brand);margin-right:3px;}
.placement-note button {border-bottom:1px solid var(--line-strong);}
#workspace {position:fixed;top:var(--top);left:var(--side);right:0;bottom:0;display:grid;grid-template-rows:minmax(0,1fr);}
.square {display:grid;place-items:center;border:1px solid var(--line);width:28px;height:28px;border-radius:6px;}
.square svg {width:15px;height:15px;color:var(--muted);}
#stage {position:relative;overflow:hidden;background:#e3e7e3;min-height:0;}
#scene {display:block;border:0;width:100%;height:100%;}
.stage-top {position:absolute;top:16px;left:20px;right:20px;display:flex;align-items:center;justify-content:space-between;pointer-events:none;gap:8px;}
.stage-actions {display:flex;align-items:center;gap:8px;pointer-events:auto;}
.stage-actions .square {background:var(--overlay);backdrop-filter:blur(8px);}
.stage-tag {display:flex;align-items:center;gap:6px;background:var(--overlay);border:1px solid var(--line);border-radius:5px;padding:6px 9px;font-size:9px;letter-spacing:.06em;color:var(--muted);}
.camera-modes {display:flex;padding:3px;background:var(--overlay);border:1px solid var(--line);border-radius:6px;backdrop-filter:blur(8px);pointer-events:auto;}
.camera-modes button {padding:6px 10px;border-radius:4px;font-size:10px;color:var(--muted);}
.camera-modes button.active {background:var(--ink);color:var(--paper);}
.stage-footer {position:absolute;bottom:17px;left:20px;right:20px;display:flex;justify-content:space-between;align-items:center;gap:10px;pointer-events:none;}
#navigation-hint {font-size:9px;color:var(--muted);background:var(--overlay);padding:7px 9px;border-radius:5px;backdrop-filter:blur(8px);}
#navigation-hint b {font-size:8px;letter-spacing:.05em;font-weight:600;}
#navigation-hint span {margin:0 5px;color:var(--faint);}
.floating {display:flex;align-items:center;gap:7px;pointer-events:auto;border:1px solid var(--line-strong);border-radius:6px;background:var(--overlay);backdrop-filter:blur(10px);padding:8px 11px;font-size:10px;}
.floating:hover {background:var(--paper);}
.floating svg {width:14px;height:14px;}
.player {padding:13px 12px 12px;background:var(--paper);border:1px solid var(--line-strong);border-top:0;border-radius:0 0 6px 6px;}
.player-meta,.transport-buttons,.transport-settings,.transport-options {display:flex;align-items:center;}
.player-meta,.transport-settings {justify-content:space-between;gap:8px;}
.player-meta {font-size:9px;color:var(--muted);}
#phase-label {color:var(--ink);}
.timeline {position:relative;margin:17px 0 12px;}
.timeline input {display:block;appearance:none;width:100%;height:3px;background:var(--line-strong);border-radius:4px;margin:0;outline:0;cursor:ew-resize;}
.timeline input::-webkit-slider-thumb {appearance:none;width:10px;height:10px;border-radius:50%;background:var(--operation);border:2px solid var(--paper);box-shadow:0 0 0 1px var(--operation);}
.timeline input::-moz-range-thumb {width:8px;height:8px;border-radius:50%;background:var(--operation);border:2px solid var(--paper);}
.phase-marks {height:16px;position:relative;pointer-events:none;}
.phase-mark {position:absolute;top:8px;font-size:8px;color:var(--muted);white-space:nowrap;}
.phase-mark::before {content:"";position:absolute;top:-6px;left:0;width:1px;height:3px;background:var(--line-strong);}
.transport {display:flex;flex-direction:column;gap:11px;}
.transport-buttons {justify-content:center;gap:13px;}.transport-options {gap:5px;}
.transport-button {display:grid;place-items:center;width:25px;height:28px;color:var(--muted);border-radius:5px;}
.transport-button:hover {background:var(--hover);color:var(--ink);}
.transport-button svg {width:16px;height:16px;}
.transport-button[aria-pressed="true"] {color:var(--ink);background:var(--fill);}
.play {display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--ink);color:var(--paper);margin:0 2px;}
.play:hover {opacity:.85;}
.play svg {width:17px;height:17px;fill:currentColor;stroke:none;}
.time {display:flex;align-items:center;gap:4px;font-size:10px;color:var(--muted);white-space:nowrap;}
.time output:first-child {color:var(--ink);}.time>span {color:var(--faint);}
.transport-options select {border:0;background:var(--fill);padding:5px 6px;font-size:10px;}
.loading {position:absolute;inset:0;z-index:7;display:grid;place-items:center;background:var(--overlay);backdrop-filter:blur(12px);transition:opacity .25s;}
.loading.done {opacity:0;pointer-events:none;}
.loading-card {width:min(340px,calc(100% - 50px));text-align:center;}
.loading-mark {display:block;font-size:17px;font-weight:650;letter-spacing:-.015em;margin-bottom:25px;}
.loading-card h2 {font-size:23px;font-weight:600;letter-spacing:-.025em;margin:10px 0;}
.loading-card>p:not(.eyebrow) {font-size:12px;color:var(--muted);line-height:1.6;}
.progress-track {width:100%;height:3px;background:var(--line);border-radius:3px;margin-top:20px;overflow:hidden;}
#load-progress {display:block;height:100%;width:0;background:var(--brand);transition:width .2s;}
#load-percent {display:block;font-size:11px;color:var(--muted);margin:8px 0;}
.fatal {position:absolute;inset:0;z-index:9;display:grid;align-content:center;justify-items:center;background:var(--paper);padding:35px;}
.fatal p {max-width:400px;font-size:12px;color:var(--muted);line-height:1.6;}
.fatal button {background:var(--ink);color:var(--paper);border-radius:6px;padding:9px 17px;}
.selection {position:relative;margin-top:12px;background:var(--fill);border:1px solid var(--line);border-radius:6px;padding:14px;}
.selection h3 {font-size:13px;font-weight:600;margin:0 20px 8px 0;}
.selection>p:last-child {font-size:11px;color:var(--muted);margin:0;}
.selection .eyebrow {font-size:9px;margin-bottom:8px;}
.selection>button {position:absolute;right:7px;top:4px;font-size:20px;color:var(--muted);}
.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;}
.object-library{margin-top:20px;border-top:1px solid var(--line);padding-top:15px;}
.object-library>summary{font-size:10px;font-weight:600;letter-spacing:.075em;color:var(--muted);cursor:pointer;margin-bottom:12px;}
.object-library>summary span{float:right;font-size:9px;font-weight:400;color:var(--faint);}
#object-search,#inspect-object{width:100%;font-size:11px;border:1px solid var(--line-strong);background:var(--paper);border-radius:5px;padding:8px;margin-bottom:6px;min-width:0;}
#object-search::placeholder{color:var(--faint);}
.card-count{display:block;font-size:9px;color:var(--faint);margin:2px 0 8px;}
.kinematic-card{position:relative;border-top:1px solid var(--line);padding-top:13px;}
.kinematic-card h3{font-size:13px;margin:0 18px 5px 0;font-weight:600;line-height:1.4;}
.kinematic-card .eyebrow{font-size:9px;margin-bottom:7px;padding-right:12px;letter-spacing:.04em;}
#selection-close{position:absolute;right:0;top:6px;font-size:20px;color:var(--muted);padding:2px;}
.card-note{font-size:10px;line-height:1.6;color:var(--muted);margin:6px 0 10px;}
.card-actions{display:flex;gap:5px;flex-wrap:wrap;margin:10px 0;}
.card-actions .view-button{font-size:10px;padding:5px 7px;}
.object-metrics{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(0,1fr);gap:10px 12px;background:var(--fill);border-radius:6px;padding:10px;margin:12px 0;}
.object-metrics dt{font-size:9px;color:var(--muted);margin-bottom:4px;}
.object-metrics dd{font-size:10px;margin:0;overflow-wrap:anywhere;}
.kinematic-card h4{font-size:10px;font-weight:500;margin:14px 0 8px;}
.pose-chips{display:flex;gap:5px;flex-wrap:wrap;}
.pose-chip{font-size:9px;border:1px solid var(--line-strong);border-radius:5px;padding:5px 7px;}
.pose-chip:hover{background:var(--hover);}
.kinematic-joint{padding:12px 0 9px;border-bottom:1px solid var(--line);}
.joint-heading{display:flex;gap:8px;align-items:flex-start;justify-content:space-between;font-size:10px;}
.joint-heading label{line-height:1.5;}.joint-heading output{white-space:nowrap;color:var(--ink);padding-top:2px;}
.joint-range{font-size:9px;color:var(--muted);margin:4px 0 8px;}
.kinematic-joint input{width:100%;margin:0;accent-color:var(--brand);height:16px;cursor:ew-resize;}
.joint-details,.model-details{font-size:9px;color:var(--muted);margin-top:6px;}
.joint-details summary,.model-details summary,.more-joints>summary{cursor:pointer;line-height:1.7;}
.joint-details p,.model-details p{white-space:pre-line;overflow-wrap:anywhere;line-height:1.7;margin:6px 0;}
.more-joints>summary{font-size:10px;color:var(--muted);padding:10px 0;}
.preview-note{font-size:10px;line-height:1.6;background:var(--brand-soft);border-left:2px solid var(--brand);padding:8px 10px;margin:10px 0;}
.return-recording{width:100%;font-size:10px;}
.contact-note{font-size:9px;margin-top:12px;}
.arrange-button {width:100%;margin-top:10px;}
.arrange-button[aria-pressed="true"] {background:var(--brand-soft);border-color:var(--brand);}
.room-editor {margin-top:10px;padding:12px;border:1px solid var(--line-strong);border-radius:6px;background:var(--paper);}
.edit-hint {font-size:10px;line-height:1.6;color:var(--muted);margin:0 0 10px;}
#edit-object {width:100%;font-size:10px;}
.edit-heading {display:flex;align-items:center;justify-content:space-between;gap:8px;margin:12px 0 6px;}
.edit-heading strong {font-size:11px;font-weight:500;}
.edit-heading .view-button {padding:4px 8px;font-size:10px;}
#edit-transform {margin:0 0 10px;padding:0;border:0;min-width:0;}
#edit-transform legend {font-size:10px;color:var(--muted);margin-bottom:6px;}
.edit-pair {display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-top:6px;}
.room-editor button:not(.view-button) {border:1px solid var(--line-strong);border-radius:5px;padding:6px 3px;font-size:10px;}
.room-editor button:hover:not(:disabled) {background:var(--hover);}
.room-editor button:disabled {opacity:.35;cursor:default;}
.edit-nudge {display:grid;grid-template-columns:1fr 1.5fr 1fr;gap:5px;}
.edit-nudge button:first-child {grid-column:2;}
.edit-nudge button:nth-child(2) {grid-column:1;}
.edit-nudge button:last-child {grid-column:2;}
.edit-nudge select {font-size:10px;padding:5px 3px;text-align:center;}
.edit-carry {display:flex;align-items:center;gap:5px;font-size:10px;color:var(--muted);margin:9px 0;}
.edit-carry input {accent-color:var(--ink);}
#edit-position {margin:0;font-size:9px;}
#edit-saved {margin:10px 0 0;font-size:9px;}
.edit-resets button {border-color:var(--line)!important;color:var(--muted);}
dialog {background:var(--paper);color:var(--ink);border:1px solid var(--line-strong);border-radius:12px;padding:34px;max-width:min(580px,calc(100vw - 36px));box-shadow:0 20px 100px #0003;}
dialog::backdrop {background:#1119;backdrop-filter:blur(5px);}
dialog h2 {font-size:26px;font-weight:600;letter-spacing:-.03em;margin:0 0 20px;}
dialog>p {font-size:13px;line-height:1.7;color:var(--muted);}
.dialog-close {position:absolute;right:13px;top:9px;font-size:23px;color:var(--muted);}
.help-grid {display:grid;grid-template-columns:1fr 1fr;gap:16px 24px;}
.help-grid p {font-size:12px;color:var(--muted);line-height:1.6;margin:0;}
.help-grid b {display:block;color:var(--ink);margin-bottom:5px;font-weight:600;}
.dialog-note {margin-top:22px!important;font-size:11px!important;border-top:1px solid var(--line);padding-top:15px;}
#source-details {font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding-top:15px;margin-top:20px;}
#source-details dt {margin-top:10px;color:var(--ink);}#source-details dd {margin:4px 0 0;}
#toast {position:fixed;z-index:30;left:calc(50% + var(--side)/2);bottom:65px;transform:translateX(-50%);border:1px solid var(--line-strong);border-radius:7px;background:var(--overlay);padding:10px 15px;font-size:12px;opacity:0;pointer-events:none;transition:opacity .2s;}
#toast.show {opacity:1;}.mobile-only {display:none;}
.touch-controls {position:absolute;left:18px;bottom:65px;z-index:5;display:flex;flex-direction:column;align-items:center;gap:4px;}
.touch-controls div {display:flex;gap:4px;}
.touch-controls button {width:36px;height:36px;background:var(--overlay);border:1px solid var(--line-strong);border-radius:7px;touch-action:none;user-select:none;font-size:18px;}
.touch-controls button:active {background:var(--fill);}
@media(min-width:1000px) and (max-height:840px) {
  #sidebar {padding-top:18px;}
  .section-heading {margin-top:16px;}.operation {padding:9px 10px;}.room-map {margin-top:14px;padding-top:12px;}
  #minimap {height:85px;}.placement-note {margin-top:10px;}.switch-row {padding:5px 0;}
}
@media(max-width:1100px) {
  :root {--side:252px;}#sidebar {padding:22px 17px;}
  .stage-footer {left:15px;right:15px;}#navigation-hint {font-size:8px;}.stage-footer .floating {font-size:9px;}
  .connection {font-size:11px;}
}
@media(max-width:760px) {
  :root {--side:0px;}.masthead {padding:0 16px;}.brand-caption {display:none;}.mast-right {gap:9px;}
  .connection {font-size:10px;}.header-button {font-size:11px;}#workspace {left:0;}
  #sidebar {top:var(--top);width:280px;transform:translateX(-100%);box-shadow:10px 0 50px #0003;transition:transform .22s;z-index:18;padding-bottom:25px;}
  body.sidebar-open #sidebar {transform:translateX(0);}.mobile-only {display:flex;}#sidebar-toggle {position:absolute;top:60px;left:14px;z-index:6;}
  #sidebar>.section-heading:first-child {margin-top:-2px;}.section-heading:has(#sidebar-close)>span {margin-left:auto;}
  .stage-top {left:14px;right:14px;top:14px;}.stage-tag {font-size:8px;padding:6px;}.camera-modes button {font-size:9px;padding:6px 8px;}
  .stage-footer {left:14px;right:14px;bottom:14px;align-items:flex-end;}#navigation-hint {max-width:166px;line-height:1.7;font-size:8px;padding:6px;}
  #navigation-hint b {font-size:7px;}#navigation-hint span {margin:0 3px;}.stage-footer .floating {font-size:9px;padding:7px 8px;}.stage-footer .floating svg {display:none;}
  .help-grid {grid-template-columns:1fr;}dialog {padding:27px;}
  #toast {left:50%;max-width:90%;width:max-content;}
}
@media(prefers-reduced-motion:reduce) {* {transition:none!important;}}
/* The machine dashboard itself is anchored inside the 4D scene. */
.machine-preview{margin:18px 0;padding:12px 0;border-top:1px solid var(--line,#ddd);border-bottom:1px solid var(--line,#ddd)}
.machine-preview>.view-button{width:100%;display:flex;justify-content:space-between;align-items:center;padding:11px 10px}
.machine-preview small{font-size:8px;letter-spacing:.8px;opacity:.68}
.machine-preview p{font-size:10px;line-height:1.5;opacity:.58;margin:7px 1px 0}
.machine-preview [aria-pressed="true"]{border-color:#97aa7e;background:#97aa7e18}