/* ====================================================================
 * Workbench — shared by the browser app and the VS Code preview.
 *
 * Only --vscode-* variables are used here: VS Code supplies them
 * natively, and palette.css maps them onto the Studio tokens on the web.
 * Local aliases below keep the rules readable.
 * ==================================================================== */

#app {
  --wb-fg: var(--vscode-foreground);
  --wb-muted: var(--vscode-descriptionForeground);
  --wb-faint: color-mix(in srgb, var(--vscode-descriptionForeground) 72%, transparent);
  --wb-border: var(--vscode-panel-border);
  --wb-border-soft: color-mix(in srgb, var(--vscode-panel-border) 65%, transparent);
  --wb-hover: var(--vscode-toolbar-hoverBackground);
  --wb-accent: var(--vscode-button-background);
  --wb-accent-fg: var(--vscode-button-foreground);
  --wb-accent-hover: var(--vscode-button-hoverBackground);
  --wb-link: var(--vscode-textLink-foreground);
  --wb-input-bg: var(--vscode-input-background);
  --wb-input-border: var(--vscode-input-border, var(--vscode-panel-border));
  --wb-widget: var(--vscode-editorWidget-background, var(--vscode-editor-background));
  --wb-side: var(--vscode-sideBar-background);
  --wb-error: var(--vscode-errorForeground, #e5534b);
  --wb-warning: var(--vscode-editorWarning-foreground, #c69026);
  --wb-info: var(--vscode-editorInfo-foreground, #4a90d9);
  --wb-success: var(--us-success, var(--vscode-testing-iconPassed, #3fb950));
  --wb-mono: var(--us-font-mono, var(--vscode-editor-font-family, ui-monospace, monospace));
  --wb-shadow: var(--us-shadow-md, 0 1px 2px #0000001a, 0 6px 16px -4px #00000026);
  --wb-shadow-sm: var(--us-shadow-sm, 0 1px 2px #0000001a);
  font-size: 13px;
}

/* ===== Shell geometry ================================================== */

#app .shell { grid-template-rows: auto minmax(0, 1fr); }

#app .workspace {
  grid-template-columns: minmax(0, 1fr) var(--panel-width, clamp(360px, 28vw, 440px));
}
#app .workspace.layout-source-fullscreen { grid-template-columns: 1fr; }
#app .workspace.layout-split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
#app .workspace.resizing { cursor: col-resize; user-select: none; }

/* ===== Document toolbar ================================================ */

#app .toolbar {
  position: relative;
  z-index: 12;
  min-height: 40px;
  padding: 0 12px 0 16px;
  gap: 12px;
  background: var(--wb-side);
  border-bottom: 1px solid var(--wb-border);
  font-size: 12.5px;
}

#app .toolbar .title {
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--wb-fg);
  max-width: 40%;
}

#app .toolbar-group-end { gap: 4px; padding: 0; border: 0; }

#app .toolbar-group-end > button,
#app .toolbar-group-end > select,
#app .toolbar-group-end > .workbench-menu > summary {
  height: 28px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--wb-fg);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 26px;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease;
}

#app .toolbar-group-end > button:hover,
#app .toolbar-group-end > select:hover,
#app .toolbar-group-end > .workbench-menu > summary:hover {
  background: var(--wb-hover);
}

/* Save Pose is the document's one persistent action: outlined, not loud. */
#app .toolbar #save-pose.primary {
  border-color: var(--wb-input-border);
  background: var(--wb-input-bg);
  color: var(--wb-fg);
}
#app .toolbar #save-pose.primary:hover { background: var(--wb-hover); }


#app .toolbar #palette-toggle { color: var(--wb-muted); }

/* ===== Menus (details/summary popovers) =============================== */

#app .workbench-menu { position: relative; margin: 0; border: 0; background: transparent; overflow: visible; }

#app .workbench-menu > summary {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  cursor: pointer;
  user-select: none;
}

#app .workbench-menu > summary::-webkit-details-marker { display: none; }

#app .workbench-menu > summary::after {
  content: '';
  width: 4px;
  height: 4px;
  margin: -2px 0 0 2px;
  border-right: 1.5px solid var(--wb-muted);
  border-bottom: 1.5px solid var(--wb-muted);
  transform: rotate(45deg);
}

#app .workbench-menu[open] > summary { background: var(--wb-hover); }

#app .menu-content,
.settings-menu .settings-options {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 30;
  display: grid;
  gap: 1px;
  width: 224px;
  padding: 4px;
  border: 1px solid var(--wb-border, var(--vscode-panel-border));
  border-radius: 8px;
  background: var(--wb-widget, var(--vscode-editorWidget-background, var(--vscode-editor-background)));
  box-shadow: var(--wb-shadow, 0 6px 20px #00000026);
  font-size: 12.5px;
}

#app .menu-content label {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  padding: 0 8px;
  border-radius: 5px;
  color: var(--wb-fg);
  cursor: pointer;
}

#app .menu-content label:hover { background: var(--wb-hover); }
#app .menu-content label:has(> select) { padding: 2px 4px; }
#app .menu-content label:has(> select):hover { background: transparent; }

#app .menu-content label select {
  width: 100%;
  height: 28px;
  padding: 0 6px;
  border: 1px solid var(--wb-input-border);
  border-radius: 5px;
  background: var(--wb-input-bg);
  color: var(--wb-fg);
  font-size: 12.5px;
}

#app .menu-content input[type='checkbox'] { margin: 0; }

#app #export-menu .menu-content,
#app #bookmarks-menu .menu-content { left: auto; right: 0; }

/* Bookmarks: apply on click, delete on ×, name a new one inline. */
#app .bookmark-options { width: 256px; }
#app .bookmark-list { max-height: 240px; margin: 0; padding: 0; overflow-y: auto; list-style: none; }
#app .bookmark-list li { display: flex; align-items: center; border-radius: 5px; }
#app .bookmark-list li:hover { background: var(--wb-hover); }

#app .bookmark-apply {
  flex: 1;
  min-width: 0;
  height: 30px;
  padding: 0 8px;
  overflow: hidden;
  border: 0;
  background: transparent;
  color: var(--wb-fg);
  font-size: 12.5px;
  text-align: left;
  white-space: nowrap;
  text-overflow: ellipsis;
  cursor: pointer;
}

#app .bookmark-delete {
  flex: none;
  width: 26px;
  height: 26px;
  margin-right: 2px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--wb-muted);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
}

#app .bookmark-list li:hover .bookmark-delete,
#app .bookmark-delete:focus-visible { opacity: 1; }
#app .bookmark-delete:hover { color: var(--wb-error); background: var(--wb-hover); }
#app .bookmark-empty { padding: 6px 8px; font-size: 12px; line-height: 1.5; color: var(--wb-muted); }

#app .bookmark-form {
  display: flex;
  gap: 6px;
  margin-top: 4px;
  padding: 8px 2px 2px;
  border-top: 1px solid var(--wb-border);
}

#app .bookmark-form input {
  flex: 1;
  min-width: 0;
  height: 28px;
  padding: 0 8px;
  border: 1px solid var(--wb-input-border);
  border-radius: 5px;
  background: var(--wb-input-bg);
  color: var(--wb-fg);
  font-size: 12.5px;
}

#app .bookmark-form input:focus { outline: none; border-color: var(--wb-accent); }

#app .bookmark-form button {
  height: 28px;
  padding: 0 12px;
  border: 0;
  border-radius: 5px;
  background: var(--wb-accent);
  color: var(--wb-accent-fg);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
}

#app .bookmark-form button:hover { background: var(--wb-accent-hover); }

#app .export-options button,
.settings-options button,
#app .settings-options button {
  display: block;
  width: 100%;
  height: 30px;
  padding: 0 8px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--vscode-foreground);
  font-size: 12.5px;
  text-align: left;
  cursor: pointer;
}

#app .export-options button:hover,
.settings-options button:hover,
#app .settings-options button:hover { background: var(--vscode-toolbar-hoverBackground); }

.settings-menu { position: relative; }
.settings-menu > summary { list-style: none; cursor: pointer; }
.settings-menu > summary::-webkit-details-marker { display: none; }
#app .settings-menu > summary::after { content: none; }
#app .settings-menu > summary { height: 28px; padding: 0 6px; }
.settings-menu .settings-options { left: auto; right: 0; }
.settings-options .menu-heading {
  padding: 6px 8px 4px;
  font-size: 11px;
  font-weight: 500;
  color: var(--vscode-descriptionForeground);
}
.palette-check { display: none; float: right; }
[aria-pressed='true'] .palette-check { display: inline; }

/* ===== Viewport overlay controls ====================================== */

#app .viewport-tools {
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  z-index: 7;
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 6px;
  pointer-events: none;
  font-size: 12px;
}

#app .viewport-tools > * {
  pointer-events: auto;
  border: 1px solid var(--wb-border);
  border-radius: 8px;
  background: var(--wb-widget);
  box-shadow: var(--wb-shadow-sm);
}

#app .viewport-tools .toolbar-group { gap: 1px; padding: 2px; border-left: 1px solid var(--wb-border); }

#app .viewport-tools button,
#app .viewport-tools select,
#app .viewport-tools .workbench-menu > summary {
  height: 26px;
  padding: 0 9px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--wb-fg);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
}

#app .viewport-tools select {
  appearance: none;
  padding-right: 24px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--wb-muted) 50%),
    linear-gradient(135deg, var(--wb-muted) 50%, transparent 50%);
  background-position: calc(100% - 12px) 52%, calc(100% - 8px) 52%;
  background-size: 4px 4px;
  background-repeat: no-repeat;
}

#app .viewport-tools button:hover,
#app .viewport-tools select:hover,
#app .viewport-tools .workbench-menu > summary:hover { background: var(--wb-hover); }

#app .viewport-tools #display-menu { padding: 2px; }
#app #fit { font-weight: 600; }
#app #render-mode { min-width: 92px; }

/* HUD: a quiet caption, not a card. */
#app .hud {
  left: 12px;
  bottom: 12px;
  padding: 4px 8px;
  border: 1px solid var(--wb-border-soft);
  border-radius: 6px;
  background: color-mix(in srgb, var(--wb-widget) 86%, transparent);
  backdrop-filter: blur(8px);
  color: var(--wb-muted);
  font-size: 11.5px;
  font-variant-numeric: tabular-nums;
  box-shadow: none;
}

#app .collide-hud { left: auto; right: 12px; }
#app .collide-hud:empty { display: none; }

/* ===== Side panel ====================================================== */

#app .side {
  position: relative;
  grid-template-rows: 40px minmax(0, 1fr);
  background: var(--wb-side);
  border-left: 1px solid var(--wb-border);
  container-type: inline-size;
  container-name: side;
}

#panel-resize {
  position: absolute;
  left: -3px;
  top: 0;
  bottom: 0;
  z-index: 10;
  width: 6px;
  cursor: col-resize;
  touch-action: none;
  transition: background-color 120ms ease;
}

#panel-resize:hover,
#panel-resize:focus-visible,
.resizing #panel-resize {
  background: color-mix(in srgb, var(--vscode-button-background) 70%, transparent);
  outline: none;
}

#app .layout-source-fullscreen #panel-resize,
#app .layout-split #panel-resize,
#app .layout-source-fullscreen .viewport-tools { display: none; }

#app .tabs {
  grid-template-columns: .9fr 1.3fr 1fr .85fr 1fr .85fr;
  padding: 0 6px;
  border-bottom: 1px solid var(--wb-border);
  background: var(--wb-side);
}

#app .tab {
  position: relative;
  height: 40px;
  padding: 0 4px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--wb-muted);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  transition: color 120ms ease;
}

#app .tab:hover { color: var(--wb-fg); background: transparent; }

#app .tab.active {
  color: var(--wb-fg);
  background: transparent;
  border-bottom: 0;
}

#app .tab.active::after {
  content: '';
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: -1px;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: var(--wb-accent);
}

@container side (max-width: 400px) {
  #app .tab { font-size: 12px; padding: 0 2px; }
  #app .tab.active::after { left: 4px; right: 4px; }
}

#app .panel { padding: 16px; }
#app .panel h3 { margin: 0; }

#app .panel-empty {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--wb-muted);
}

#app .muted { color: var(--wb-muted); }

/* Shared panel controls. */
#app .panel button {
  height: 28px;
  padding: 0 12px;
  border: 1px solid var(--wb-input-border);
  border-radius: 6px;
  background: var(--wb-input-bg);
  color: var(--wb-fg);
  font-size: 12.5px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 120ms ease, border-color 120ms ease;
}

#app .panel button:hover { background: var(--wb-hover); }

#app .panel button.primary {
  border-color: transparent;
  background: var(--wb-accent);
  color: var(--wb-accent-fg);
}

#app .panel button.primary:hover { background: var(--wb-accent-hover); }
#app .panel button:disabled { opacity: 0.45; cursor: default; }
#app .panel button:disabled:hover { background: var(--wb-input-bg); }

#app .panel :is(input[type='number'], input[type='text'], input[type='search'], select) {
  min-width: 0;
  height: 28px;
  padding: 0 8px;
  border: 1px solid var(--wb-input-border);
  border-radius: 6px;
  background: var(--wb-input-bg);
  color: var(--wb-fg);
  font-size: 12.5px;
}

#app .panel select {
  appearance: none;
  padding-right: 26px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--wb-muted) 50%),
    linear-gradient(135deg, var(--wb-muted) 50%, transparent 50%);
  background-position: calc(100% - 13px) 52%, calc(100% - 9px) 52%;
  background-size: 4px 4px;
  background-repeat: no-repeat;
  text-overflow: ellipsis;
}

#app .panel :is(input[type='number'], input[type='text']) {
  font-family: var(--wb-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

#app .panel :is(input, select):focus {
  outline: none;
  border-color: var(--wb-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--wb-accent) 18%, transparent);
}

#app input[type='number'] { appearance: textfield; }
#app input[type='number']::-webkit-inner-spin-button,
#app input[type='number']::-webkit-outer-spin-button { appearance: none; margin: 0; }
#app input[type='checkbox'] { accent-color: var(--wb-accent); }

/* ----- Joints: overview ------------------------------------------------ */

#app .overview {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--wb-border);
}

#app .overview-name {
  min-width: 0;
  overflow: hidden;
  font-family: var(--wb-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--wb-fg);
  white-space: nowrap;
  text-overflow: ellipsis;
}

#app .summary {
  display: flex;
  flex: none;
  gap: 12px;
  margin: 0;
  padding: 0;
  border: 0;
}

#app .summary .metric {
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

#app .summary .metric b {
  display: inline;
  font-size: 12.5px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--wb-fg);
}

#app .summary .metric span {
  font-size: 12px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--wb-muted);
}

/* ----- Collapsible sections (xacro params, joint groups) --------------- */

#app details {
  margin: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

#app details:not(.workbench-menu) > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--wb-fg);
  cursor: pointer;
  user-select: none;
}

#app details:not(.workbench-menu) > summary::-webkit-details-marker { display: none; }

#app :is(.xacro-settings, #joint-groups > details, .checks-group) > summary::before {
  content: '';
  flex: none;
  width: 5px;
  height: 5px;
  margin: 0 3px 0 1px;
  border-right: 1.5px solid var(--wb-muted);
  border-bottom: 1.5px solid var(--wb-muted);
  transform: rotate(-45deg);
  transition: transform 140ms ease;
}

#app :is(.xacro-settings, #joint-groups > details, .checks-group)[open] > summary::before { transform: rotate(45deg); }

#app .xacro-settings { border-bottom: 1px solid var(--wb-border); }
#app .parameter-count,
#app .group-count {
  margin-left: auto;
  font-size: 11.5px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--wb-muted);
}

#app .xacro-args {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 2px 0 14px;
  border: 0;
  background: transparent;
}

#app .xacro-args label {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  align-items: center;
  gap: 10px;
  font-family: var(--wb-mono);
  font-size: 11.5px;
  color: var(--wb-muted);
}

#app .xacro-args label span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#app .xacro-args #apply-xacro { justify-self: start; margin-top: 6px; }

/* ----- Joints: controls ------------------------------------------------ */

#app .joint-section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 18px 0 10px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--wb-fg);
}

#app .joint-section-heading label,
#app .joint-filter > label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 400;
  color: var(--wb-muted);
  white-space: nowrap;
  cursor: pointer;
}

#app .joint-filter {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
  padding: 0;
  background: transparent;
}

#app .joint-filter input[type='search'] { width: 100%; }

#app #joint-groups > details > summary {
  min-height: 34px;
  border-bottom: 1px solid var(--wb-border);
}

#app .group-name { font-family: var(--wb-mono); font-size: 12px; }

#app #joint-groups .detail-body { display: block; padding: 0; }
#app .state-buttons { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 0 4px; }
#app .state-buttons:not(:has(button)) { display: none; }

#app .joint-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  grid-template-areas: 'name reset value' 'slider slider slider';
  align-items: center;
  gap: 2px 12px;
  padding: 8px 0 6px;
  border-bottom: 1px solid var(--wb-border-soft);
  font-size: 12px;
}

#app .joint-row .joint-name {
  grid-area: name;
  min-width: 0;
  overflow: hidden;
  font-family: var(--wb-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--wb-fg);
  white-space: nowrap;
  text-overflow: ellipsis;
}

#app .joint-value {
  grid-area: value;
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--wb-muted);
}

#app .panel .joint-value input {
  width: 72px;
  height: 24px;
  padding: 0 6px;
  border-color: transparent;
  background: transparent;
  text-align: right;
}

#app .panel .joint-value input:hover { border-color: var(--wb-input-border); background: var(--wb-input-bg); }
#app .panel .joint-value input:focus { background: var(--wb-input-bg); }
#app .joint-value span { width: 20px; }

/* Range slider: thin track with a filled portion driven by --fill. */
#app .joint-row input[type='range'] {
  grid-area: slider;
  width: 100%;
  height: 16px;
  margin: 0;
  appearance: none;
  background: transparent;
  cursor: pointer;
  --track: color-mix(in srgb, var(--wb-fg) 14%, transparent);
}

#app .joint-row input[type='range']::-webkit-slider-runnable-track {
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(to right, var(--wb-accent) var(--fill, 50%), var(--track) var(--fill, 50%));
}

#app .joint-row input[type='range']::-moz-range-track {
  height: 3px;
  border-radius: 2px;
  background: var(--track);
}

#app .joint-row input[type='range']::-moz-range-progress {
  height: 3px;
  border-radius: 2px;
  background: var(--wb-accent);
}

#app .joint-row input[type='range']::-webkit-slider-thumb {
  width: 13px;
  height: 13px;
  margin-top: -5px;
  appearance: none;
  border: 1.5px solid var(--wb-accent);
  border-radius: 50%;
  background: var(--vscode-editor-background);
  box-shadow: 0 1px 2px #0000002e;
  transition: transform 100ms ease;
}

#app .joint-row input[type='range']::-moz-range-thumb {
  width: 11px;
  height: 11px;
  border: 1.5px solid var(--wb-accent);
  border-radius: 50%;
  background: var(--vscode-editor-background);
}

#app .joint-row input[type='range']:hover::-webkit-slider-thumb,
#app .joint-row input[type='range']:active::-webkit-slider-thumb { transform: scale(1.15); }

#app .joint-row input[type='range']:focus-visible { outline: none; }
#app .joint-row input[type='range']:focus-visible::-webkit-slider-thumb {
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--wb-accent) 25%, transparent);
}

/* ----- Inspector ------------------------------------------------------- */

#app .inspector-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--wb-border);
}

#app .inspector-title {
  min-width: 0;
  overflow: hidden;
  font-family: var(--wb-mono);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  text-overflow: ellipsis;
}

#app .inspector-kind {
  flex: none;
  padding: 1px 7px;
  border: 1px solid var(--wb-border);
  border-radius: 4px;
  font-size: 11px;
  color: var(--wb-muted);
}

#app .inspector-grid {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 9px 12px;
  font-size: 12px;
}

#app .inspector-grid b {
  font-weight: 400;
  color: var(--wb-muted);
}

#app .inspector-grid .value,
#app .mesh-item .value {
  font-family: var(--wb-mono);
  font-size: 12px;
  color: var(--wb-fg);
  overflow-wrap: anywhere;
}

#app .value-line { display: block; }

#app #panel-inspector h3 {
  margin: 20px 0 10px;
  padding-top: 16px;
  border-top: 1px solid var(--wb-border);
  font-size: 12.5px;
  font-weight: 600;
}

#app .mesh-list { display: grid; gap: 8px; }
#app .mesh-item { display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 12px; font-size: 12px; }
#app .mesh-item b { font-weight: 400; color: var(--wb-muted); text-transform: capitalize; }
#app .severity.error { color: var(--wb-error); font-family: inherit; font-size: 11px; font-weight: 600; text-transform: none; }

/* ----- Links tree ------------------------------------------------------ */

#app .panel.tree { padding: 10px 8px 16px; overflow-x: auto; }

#app .tree ul { margin: 0; padding: 0; list-style: none; }
#app .tree ul ul { margin-left: 11px; padding-left: 4px; border-left: 1px solid var(--wb-border-soft); }
#app .tree li { margin: 0; min-width: 0; }

#app .panel.tree button {
  display: flex;
  align-items: baseline;
  gap: 8px;
  width: 100%;
  height: auto;
  min-height: 26px;
  padding: 4px 8px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--wb-fg);
  font-weight: 400;
  text-align: left;
}

#app .panel.tree button:hover { background: var(--vscode-list-hoverBackground); }

#app .panel.tree button[aria-current='true'] {
  background: var(--vscode-list-activeSelectionBackground);
  color: var(--vscode-list-activeSelectionForeground, var(--wb-fg));
}

#app .tree-link {
  flex: none;
  font-family: var(--wb-mono);
  font-size: 12px;
}

#app .tree-joint {
  min-width: 0;
  overflow: hidden;
  font-family: var(--wb-mono);
  font-size: 11px;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--wb-faint);
  opacity: 0;
  transition: opacity 100ms ease;
}

#app .panel.tree button:is(:hover, :focus-visible, [aria-current='true']) .tree-joint { opacity: 1; }

/* ----- Checks ---------------------------------------------------------- */

#app .checks-summary {
  display: block;
  margin: 0 0 4px;
  padding: 0 0 16px;
  border-bottom: 1px solid var(--wb-border);
}

#app .health-reading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

#app .health-label { font-size: 12.5px; font-weight: 600; color: var(--wb-fg); }
#app .health-value { display: inline-flex; align-items: baseline; gap: 2px; }

#app .health-score {
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--wb-fg);
}

#app .health-max { font-size: 12px; color: var(--wb-muted); font-variant-numeric: tabular-nums; }

#app .health-meter {
  height: 4px;
  overflow: hidden;
  border-radius: 2px;
  background: color-mix(in srgb, var(--wb-fg) 10%, transparent);
}

#app .health-meter > span { display: block; height: 100%; border-radius: inherit; }
#app .health-meter.health-good > span { background: var(--wb-success); }
#app .health-meter.health-warn > span { background: var(--wb-warning); }
#app .health-meter.health-poor > span { background: var(--wb-error); }
#app .health-score.health-good,
#app .health-score.health-warn,
#app .health-score.health-poor { color: var(--wb-fg); }

#app .checks-clean { margin: 12px 0 0; font-size: 12.5px; line-height: 1.55; color: var(--wb-muted); }

#app .checks-counts { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 12px; font-size: 12px; }

#app .checks-counts .count-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--wb-fg);
  font-variant-numeric: tabular-nums;
}

#app .sev-dot { flex: none; width: 7px; height: 7px; border-radius: 50%; }
#app .sev-dot.sev-error { background: var(--wb-error); }
#app .sev-dot.sev-warning { background: var(--wb-warning); }
#app .sev-dot.sev-info { background: var(--wb-info); }

#app details.checks-group { border-bottom: 1px solid var(--wb-border); }

#app summary.checks-group-header {
  justify-content: flex-start;
  gap: 8px;
  min-height: 40px;
  padding: 8px 0;
  background: transparent;
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1.4;
}

#app .checks-group-title { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 8px; flex: 1; min-width: 0; }
#app .checks-group-title .sev-dot { align-self: center; }
#app .checks-code { font-family: var(--wb-mono); font-size: 11px; font-weight: 500; color: var(--wb-muted); }
#app .checks-group-count { font-size: 11.5px; font-variant-numeric: tabular-nums; color: var(--wb-muted); }

#app .checks-group-list { margin: 0 0 8px; padding: 0; list-style: none; }

#app .checks-group-item { padding: 0; border: 0; cursor: pointer; }
#app .checks-group-item::before { content: none; }
#app .checks-group-item:hover { background: transparent; }

#app .panel .check-message {
  display: flex;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  height: auto;
  padding: 7px 8px 7px 22px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--wb-muted);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.5;
  text-align: left;
  white-space: normal;
}

#app .panel .check-message:hover { background: var(--vscode-list-hoverBackground); color: var(--wb-fg); }
#app .check-text { flex: 1; min-width: 0; overflow-wrap: anywhere; }

#app .check-message .check-line {
  flex: none;
  margin: 0;
  font-family: var(--wb-mono);
  font-size: 11px;
  color: var(--wb-faint);
  font-variant-numeric: tabular-nums;
}

/* ----- Tools ----------------------------------------------------------- */

#app #panel-tools { padding-top: 0; }

#app .tool-block {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 16px 0;
  border: 0;
  border-bottom: 1px solid var(--wb-border);
  border-radius: 0;
}

#app .tool-block:last-child { border-bottom: 0; }
#app .tool-block h3 { font-size: 13px; font-weight: 600; color: var(--wb-fg); }
#app .tool-hint { margin: -6px 0 0; font-size: 12px; line-height: 1.5; }
#app .tool-hint code { font-family: var(--wb-mono); font-size: 11px; }
#app .tool-hint.error, #app .muted.error { color: var(--wb-error); }

#app .tool-fields { display: grid; gap: 6px; }

#app .tool-fields label {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--wb-muted);
}

#app .tool-fields :is(input, select) { width: 100%; }
#app .tool-block .row-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
#app .tool-status { font-size: 12px; }
#app .tool-block button { justify-self: auto; }
#app .measure-readout { font-family: var(--wb-mono); font-size: 12px; }
#app .measure-readout:empty { display: none; }
#app #measure-toggle.active { background: var(--wb-accent-hover); }

#app .srdf-results { max-height: 220px; overflow: auto; font-size: 12px; }
#app .srdf-results:empty { display: none; }
#app .srdf-results li { padding: 3px 0; }

/* ===== Small screens: stack the panel under the viewport ============= */

@media (max-width: 900px) {
  #app .workspace,
  #app .workspace.layout-split {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(240px, 1fr) minmax(280px, 46%);
  }
  #app .side { border-left: 0; border-top: 1px solid var(--wb-border); }
  #panel-resize { display: none; }
  #app .toolbar { padding: 0 8px 0 12px; }
  #app .toolbar .title { max-width: 30%; }
  #app .viewport-tools { top: 8px; left: 8px; right: 8px; gap: 4px; }
  #app .viewport-tools button { padding: 0 7px; }
}

/* Reachability legend: colour bar, scale labels, density filter. */
#app .reach-legend { display: grid; gap: 6px; }
#app .reach-legend[hidden] { display: none; }
#app .reach-legend-bar { height: 8px; border-radius: 4px; }
#app .reach-legend-labels {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 11px;
  color: var(--wb-muted);
  font-variant-numeric: tabular-nums;
}
#app .reach-filter {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) 40px;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--wb-muted);
}
#app .reach-filter output { text-align: right; font-variant-numeric: tabular-nums; }
#app p.tool-status { margin: 0; line-height: 1.5; overflow-wrap: anywhere; }
#app p.tool-status:empty { display: none; }

/* Joint reset: a heading button for all joints, and a per-row button that
   only appears once the joint has moved away from zero. */
#app .joint-heading-actions { display: inline-flex; align-items: center; gap: 12px; }
#app .joint-section-heading .joint-reset-all {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 24px;
  padding: 0 8px;
  font-size: 12px;
  font-weight: 400;
}
#app .panel .joint-reset {
  grid-area: reset;
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--wb-muted);
  visibility: hidden;
}
#app .panel .joint-row.is-modified .joint-reset { visibility: visible; }
#app .panel .joint-reset:hover { background: var(--wb-hover, color-mix(in srgb, var(--wb-fg) 10%, transparent)); color: var(--wb-fg); }
#app .panel .joint-reset:focus-visible { visibility: visible; }
#app .reach-save[hidden] { display: none; }