:root {
  --bg: #000000;
  --panel: #111111;
  --elevated: #161616;
  --line: rgba(255, 255, 255, 0.14);
  --text: #e6e6e6;
  --muted: #9a9a9a;
  --gold: #d0d0d0;
  --ice: #c4c4c4;
  --danger: #b0b0b0;
  --panel-width: 320px;
}

@font-face {
  font-family: "Arkitech Light";
  src: local("Arkitech Light"), local("Arkitech-Light"), local("Arkitech");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  overflow: hidden;
}

.app {
  display: flex;
  height: 100%;
}

.hud {
  flex: 0 0 var(--panel-width);
  width: var(--panel-width);
  height: 100%;
  overflow: auto;
  padding: 18px 16px 16px;
  background: var(--panel);
  border-right: 1px solid var(--line);
}

.viewport {
  flex: 1;
  position: relative;
  min-width: 0;
  background: var(--bg);
}

#stage {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  touch-action: none;
}

#stage.seed-mode {
  cursor: cell;
}

#stage.select-mode {
  cursor: default;
}

#stage.draw-mode {
  cursor: crosshair;
}

#stage.pan-mode {
  cursor: grab;
}

#stage.pan-mode:active {
  cursor: grabbing;
}

.view-hint {
  position: absolute;
  right: 14px;
  bottom: 12px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  pointer-events: none;
}

.hud::-webkit-scrollbar {
  width: 6px;
}

.hud::-webkit-scrollbar-thumb {
  background: var(--line);
}

.kicker {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}

h1 {
  margin-top: 6px;
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.03em;
}

.lede {
  margin: 8px 0 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.grid-slots {
  display: flex;
  gap: 4px;
  margin: 0 0 8px;
}

.grid-slot {
  flex: 1;
  min-width: 0;
}

.grid-slot.empty {
  opacity: 0.55;
  border-style: dashed;
  color: var(--muted);
}

.grid-slot.active {
  opacity: 1;
  border-style: solid;
  border-color: var(--gold);
  color: var(--gold);
}

.row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

button {
  flex: 1;
  font: inherit;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 8px 10px;
  cursor: pointer;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 11px;
}

button:hover {
  border-color: var(--gold);
}

button.primary {
  background: var(--gold);
  color: #111;
  border-color: var(--gold);
  font-weight: 600;
}

button.ghost {
  color: var(--muted);
}

button:disabled,
button:disabled:hover {
  opacity: 0.4;
  border-color: var(--line);
  cursor: default;
}

.grid-status {
  margin: 0 0 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  line-height: 1.4;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.grid-status.active {
  color: var(--ice);
}

.grid-status.error {
  color: var(--danger);
  white-space: normal;
}

.section {
  margin: 12px 0 4px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.section-head {
  margin-bottom: 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

button.active {
  border-color: var(--gold);
  color: var(--gold);
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0 10px;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
}

.check input {
  accent-color: var(--gold);
}

.legend {
  display: grid;
  gap: 6px;
  margin-bottom: 8px;
}

.legend.hidden {
  display: none;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.legend-item input[type="checkbox"] {
  accent-color: var(--gold);
  cursor: pointer;
}

.legend-item label {
  cursor: pointer;
}

.legend-item input[type="color"],
label.ctrl input[type="color"] {
  width: 28px;
  height: 18px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: transparent;
  cursor: pointer;
}

.legend-item input[type="color"]::-webkit-color-swatch-wrapper,
label.ctrl input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

.legend-item input[type="color"]::-webkit-color-swatch,
label.ctrl input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 1px;
}

.legend-item input[type="color"]::-moz-color-swatch,
label.ctrl input[type="color"]::-moz-color-swatch {
  border: none;
  border-radius: 1px;
}

.seed-list {
  list-style: none;
  max-height: 120px;
  overflow: auto;
  margin-bottom: 4px;
}

.seed-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  cursor: pointer;
}

.seed-list li.selected {
  border-color: var(--gold);
  color: var(--text);
}

.seed-list li button {
  flex: 0 0 auto;
  padding: 2px 6px;
  font-size: 10px;
  letter-spacing: 0;
}

label.ctrl {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 12px;
  margin: 10px 0;
  font-size: 12px;
  color: var(--muted);
}

label.ctrl span.value {
  font-family: "IBM Plex Mono", monospace;
  color: var(--gold);
  font-size: 11px;
  white-space: nowrap;
}

input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  accent-color: var(--gold);
}

.range-bounds {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
}

.range-bounds.axis-labels {
  justify-content: space-between;
}

.range-bounds input[type="number"] {
  width: 68px;
  padding: 3px 5px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--elevated);
  color: var(--text);
  font: inherit;
  font-size: 11px;
}

label.ctrl.compact select {
  grid-column: 1 / -1;
  width: 100%;
  padding: 6px 8px;
  font: inherit;
  font-size: 12px;
  color: var(--text);
  background: var(--elevated);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin: 14px 0 10px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
}

.stats div {
  border: 1px solid var(--line);
  padding: 8px;
}

.stats b {
  display: block;
  color: var(--ice);
  font-size: 16px;
  font-weight: 500;
}

.variant-list {
  list-style: none;
  max-height: 220px;
  overflow: auto;
  margin-top: 8px;
}

.variant-list li {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 8px;
  align-items: center;
  margin-bottom: 6px;
  padding: 6px;
  border: 1px solid var(--line);
}

.variant-list li.active {
  border-color: var(--gold);
}

.variant-list li.stale {
  opacity: 0.45;
}

.variant-list img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  background: var(--elevated);
  border-radius: 2px;
}

.variant-meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  line-height: 1.35;
}

.variant-meta strong {
  display: block;
  color: var(--text);
  font-size: 11px;
  font-weight: 500;
}

.variant-actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.variant-actions button {
  flex: none;
  padding: 4px 6px;
  font-size: 10px;
  letter-spacing: 0;
}

.shell {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.shell > .app {
  flex: 1;
  min-height: 0;
}

.main-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

.page-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--line);
  background: var(--elevated);
  flex-shrink: 0;
}

.page-tab {
  flex: 0 0 auto;
  padding: 10px 18px;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
}

.page-tab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-tab:hover:not(.active) {
  color: var(--text);
}

.main-pane .viewport {
  flex: 1;
  min-height: 0;
}

.hidden {
  display: none !important;
  pointer-events: none !important;
}

.app.matrix-mode .hud,
.app.space3d-mode .hud,
.app.grid3d-mode .hud {
  display: none;
}

.matrix-view.hidden,
.space3d-view.hidden,
.grid3d-view.hidden {
  display: none !important;
  pointer-events: none !important;
}

.grid3d-view .grid-status {
  white-space: normal;
}

.grid3d-view .check {
  margin: 4px 0;
}

.grid3d-view label.ctrl select {
  grid-column: 1 / -1;
  width: 100%;
  padding: 6px 8px;
  font: inherit;
  font-size: 12px;
  color: var(--text);
  background: var(--elevated);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.grid3d-view .space3d-hud .row button {
  flex: 1 1 auto;
}

.grid3d-view .space3d-stage.root-place {
  cursor: crosshair;
}

.matrix-view {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 14px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.matrix-toolbar {
  flex-shrink: 0;
}

.matrix-block {
  margin-bottom: 8px;
}

.matrix-desc-row,
.matrix-type-row {
  flex-wrap: wrap;
}

.matrix-desc-row button,
.matrix-type-row button {
  flex: 1 1 auto;
  min-width: 88px;
}

.matrix-sliders {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 18px;
}

.matrix-generate-row {
  margin-top: 4px;
  max-width: none;
  flex-wrap: wrap;
  gap: 8px;
}

.matrix-saved-block {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.saved-matrix-list {
  max-height: 220px;
}

.saved-matrix-list li {
  grid-template-columns: 72px 1fr;
}

.matrix-body {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 16px;
  align-items: start;
}

.matrix-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.matrix-cell {
  border: 1px solid var(--line);
  background: var(--elevated);
  padding: 6px;
  cursor: pointer;
  min-width: 0;
}

.matrix-cell.empty {
  cursor: default;
  opacity: 0.65;
}

.matrix-cell.active {
  border-color: var(--gold);
}

.matrix-cell-preview {
  width: 100%;
  aspect-ratio: 1;
  background: #000;
  border: 1px solid var(--line);
  margin: 4px 0 6px;
  object-fit: contain;
  display: block;
}

.matrix-cell-preview.placeholder {
  background: repeating-linear-gradient(
    135deg,
    #111 0 8px,
    #161616 8px 16px
  );
}

.matrix-cell-title {
  display: block;
  font-size: 11px;
  color: var(--text);
  font-weight: 500;
}

.matrix-cell-meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  color: var(--muted);
  line-height: 1.35;
}

.matrix-detail {
  border: 1px solid var(--line);
  background: var(--elevated);
  padding: 12px;
  position: sticky;
  top: 0;
}

.matrix-detail-empty {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.45;
}

.matrix-detail-head {
  margin-bottom: 8px;
}

.matrix-detail-head strong {
  display: block;
  font-size: 14px;
  font-weight: 500;
}

.matrix-detail img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: #000;
  border: 1px solid var(--line);
  margin-bottom: 8px;
}

.matrix-detail .saved-sim-card-actions {
  flex-wrap: wrap;
}

.matrix-detail .saved-sim-card-actions button {
  flex: 1 1 100%;
}

@media (max-width: 980px) {
  .matrix-body {
    grid-template-columns: 1fr;
  }

  .matrix-detail {
    position: static;
  }

  .matrix-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1280px) and (min-width: 981px) {
  .matrix-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .matrix-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .matrix-sliders {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .matrix-grid {
    grid-template-columns: 1fr;
  }
}

.save-sim-panel {
  margin: 0 0 10px;
  padding: 8px 8px 2px;
  border: 1px solid var(--line);
  background: var(--elevated);
}

.save-sim-panel.hidden,
.saved-sim-list:empty {
  display: none;
}

label.ctrl.save-sim-name {
  grid-template-columns: 1fr;
}

label.ctrl.save-sim-name input[type="text"] {
  grid-column: 1 / -1;
  width: 100%;
  margin-top: 4px;
  padding: 6px 8px;
  font: inherit;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.save-sim-cat-label {
  margin: 4px 0 6px;
  font-size: 12px;
  color: var(--muted);
}

.saved-sim-filters {
  margin-top: 4px;
}

.saved-sim-list {
  list-style: none;
  max-height: 280px;
  overflow: auto;
  margin: 4px 0 8px;
}

.saved-sim-list li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 8px;
  margin-bottom: 8px;
  padding: 8px;
  border: 1px solid var(--line);
  background: var(--elevated);
}

.saved-sim-list li.active {
  border-color: var(--gold);
}

.saved-sim-list img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  background: #000;
  border: 1px solid var(--line);
}

.saved-sim-card-body {
  min-width: 0;
}

.saved-sim-card-title {
  display: block;
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.saved-sim-card-cat {
  display: block;
  margin: 2px 0 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}

.saved-sim-card-meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--muted);
  line-height: 1.4;
}

.saved-sim-card-actions {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.saved-sim-card-actions button {
  flex: 1;
  padding: 5px 6px;
  font-size: 10px;
  letter-spacing: 0.04em;
}

@media (max-width: 720px) {
  .app {
    flex-direction: column;
  }

  .hud {
    width: 100%;
    flex-basis: auto;
    max-height: 42vh;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .viewport {
    min-height: 0;
  }

  .view-hint {
    display: none;
  }
}

.space3d-view {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: row;
  position: relative;
  background: #000;
}

.space3d-hud {
  position: relative;
  z-index: 4;
  flex: 0 0 var(--panel-width);
  width: var(--panel-width);
  height: 100%;
  overflow: auto;
  padding: 14px 14px 20px;
  background: var(--panel);
  border-right: 1px solid var(--line);
  pointer-events: auto;
  isolation: isolate;
  touch-action: auto;
}

.space3d-hud .row {
  margin-bottom: 8px;
}

.space3d-viewport-bar {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding: 6px 8px;
  background: rgba(17, 17, 17, 0.92);
  border-bottom: 1px solid var(--line);
  z-index: 3;
  pointer-events: auto;
}

.space3d-viewport-bar .space3d-view-btn {
  flex: 0 0 auto;
  min-width: 2.6rem;
  padding: 5px 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.2;
  border-radius: 2px;
}

.space3d-viewport-bar .space3d-view-btn.active {
  border-color: var(--gold);
  color: var(--text);
  background: var(--elevated);
}

.space3d-view.is-edit-lines .space3d-viewport-bar {
  border-bottom-color: var(--gold);
}

.space3d-workspace-readout {
  margin-left: auto;
  padding: 3px 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.02em;
  color: var(--muted, #b8b4ac);
  white-space: nowrap;
}

.space3d-edit-badge {
  margin-left: 8px;
  padding: 3px 8px;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #111;
  background: var(--gold);
  border-radius: 2px;
}

.space3d-box-select {
  display: none;
  position: absolute;
  border: 1px solid rgba(232, 213, 163, 0.95);
  background: rgba(232, 213, 163, 0.12);
  pointer-events: none;
  z-index: 5;
}

.space3d-xyz {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin: 8px 0;
}

.space3d-xyz label.ctrl {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0;
}

.space3d-xyz input[type="number"] {
  grid-column: 1 / -1;
  width: 100%;
  padding: 6px 6px;
  font: inherit;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--text);
  background: var(--elevated);
  border: 1px solid var(--line);
  border-radius: 2px;
}

.space3d-main {
  flex: 1;
  min-width: 0;
  min-height: 0;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
}

.space3d-stage {
  flex: 1;
  min-height: 0;
  position: relative;
  overflow: hidden;
  touch-action: none;
}

.space3d-stage canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100% !important;
  height: 100% !important;
  touch-action: none;
}

.space3d-preview {
  position: absolute;
  right: 12px;
  bottom: 36px;
  width: 240px;
  z-index: 2;
  background: #050505;
  border: 1px solid var(--line);
  padding: 6px;
  pointer-events: none;
}

.space3d-preview.is-selecting {
  pointer-events: auto;
  border-color: #e8d5a3;
}

.space3d-preview-label {
  display: block;
  margin-bottom: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.space3d-preview-stack {
  position: relative;
}

.space3d-preview canvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  background: #000;
}

#space3dPreviewOverlay {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: transparent;
  cursor: crosshair;
  touch-action: none;
}

.space3d-chunk-size {
  margin: 6px 0 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.space3d-hud label.ctrl.compact select {
  grid-column: 1 / -1;
  background: #111;
  color: var(--text);
  border: 1px solid var(--line);
  padding: 4px 6px;
  font: inherit;
}

#space3dSectionList li,
#space3dVarList li {
  cursor: pointer;
}

#space3dSectionList li.selected span,
#space3dVarList li.selected span {
  color: var(--text);
}

.space3d-workspace {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.space3d-workspace .section-head {
  color: var(--muted);
}

.space3d-reset-workspace {
  width: 100%;
  border-color: #4a4844;
  color: #b8b4ac;
}

.space3d-reset-workspace:hover {
  border-color: #8a8680;
  color: var(--text);
}

.space3d-turntable-overlay {
  position: absolute;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.72);
  pointer-events: auto;
}

.space3d-turntable-card {
  width: min(22rem, calc(100% - 36px));
  padding: 16px 16px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.space3d-turntable-card p {
  margin: 0 0 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text);
}

#space3dTurnProgressDetail {
  text-transform: none;
  letter-spacing: 0.02em;
  color: var(--muted);
  font-size: 11px;
}

.space3d-turntable-bar {
  height: 4px;
  margin: 8px 0 12px;
  background: #222;
  overflow: hidden;
}

.space3d-turntable-bar span {
  display: block;
  height: 100%;
  width: 0;
  background: #e8d5a3;
}

.space3d-turntable-card .ghost {
  width: 100%;
}

.space3d-view.is-turntable-busy .space3d-hud,
.space3d-view.is-turntable-busy .space3d-main {
  pointer-events: none;
}

.space3d-reset-dialog {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.68);
  pointer-events: auto;
}

.space3d-reset-dialog-card {
  width: min(28rem, calc(100% - 36px));
  padding: 18px 18px 14px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.space3d-reset-dialog-card h2 {
  margin: 0 0 10px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}

.space3d-reset-dialog-card p {
  margin: 0 0 14px;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
}

.space3d-reset-dialog-card .row {
  margin-bottom: 0;
  justify-content: flex-end;
}

.space3d-reset-confirm {
  border-color: #8a8680;
  color: var(--text);
}

.space3d-saved-list {
  max-height: 240px;
}

.space3d-saved-list li.active {
  border-color: var(--gold);
}

.space3d-saved-unsaved {
  color: var(--gold);
}

.space3d-gen-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
  margin: 8px 0 10px;
}

.space3d-gen-card {
  border: 1px solid var(--line, #3a3936);
  background: #141412;
  padding: 4px;
  cursor: pointer;
  min-height: 72px;
}

.space3d-gen-card.active {
  border-color: var(--gold);
}

.space3d-gen-card img,
.space3d-gen-card canvas {
  display: block;
  width: 100%;
  height: 64px;
  object-fit: cover;
  background: #000;
}

.space3d-gen-card span {
  display: block;
  font-size: 10px;
  letter-spacing: 0.04em;
  margin-top: 3px;
  color: var(--muted, #9a968e);
}

.grid3d-elem-edit {
  margin: 8px 0 10px;
  padding: 8px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.28);
}

.grid3d-elem-edit.hidden {
  display: none;
}

.grid3d-elem-edit .space3d-xyz {
  margin: 4px 0 8px;
}

.grid3d-elem-edit .row button.active {
  border-color: #d7c27a;
  color: #f3e4b0;
}

.grid3d-form-mode {
  margin: 6px 0 10px;
}

.grid3d-form-mode .grid3d-mode-btn {
  flex: 1;
  padding: 6px 4px;
  font-size: 10px;
  letter-spacing: 0.06em;
}

.grid3d-form-mode .grid3d-mode-btn.active {
  border-color: #d7c27a;
  color: #f3e4b0;
  background: rgba(215, 194, 122, 0.12);
}

.grid3d-viewport-bar {
  flex-shrink: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding: 6px 8px;
  background: rgba(17, 17, 17, 0.92);
  border-bottom: 1px solid var(--line);
  z-index: 3;
  pointer-events: auto;
}

.grid3d-viewport-bar .grid3d-view-btn {
  flex: 0 0 auto;
  min-width: 2.6rem;
  padding: 5px 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.2;
  border-radius: 2px;
}

.grid3d-viewport-bar .grid3d-view-btn.active {
  border-color: var(--gold);
  color: var(--text);
  background: var(--elevated);
}

.grid3d-raster-panel {
  margin: 8px 0 10px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(0, 0, 0, 0.35);
}

.grid3d-raster-overlay {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 6px 0;
  border: 1px solid var(--line);
  background: #111;
}

input.hidden {
  display: none !important;
}