:root {
  --ink: #0d1317;
  --muted: #5c6b73;
  --accent: #ff6b35;
  --accent-soft: rgba(255, 107, 53, 0.16);
  --teal: #2f8c8c;
  --surface: #f6f3ee;
  --panel: #ffffff;
  --shadow: 0 24px 60px rgba(13, 19, 23, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  height: 100%;
}

/* The workspace is the whole page: no chrome around it, nothing to scroll. */
body.app-shell {
  margin: 0;
  height: 100%;
  overflow: hidden;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background: var(--surface);
}

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

/* ================================================
   Shared primitives: status text, hints, buttons, cards, tables
   ================================================ */

.status {
  font-size: 0.8rem;
  color: var(--muted);
}

.ws-hint {
  color: var(--muted);
  margin-bottom: 16px;
}

.btn-primary,
.btn-secondary {
  border: none;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

.btn-secondary {
  background: #1b3b5f;
  color: #fff;
  box-shadow: 0 10px 30px rgba(27, 59, 95, 0.25);
}

.btn-primary:hover,
.btn-secondary:hover,
.btn-tertiary:hover {
  transform: translateY(-1px);
}

.btn-primary:disabled,
.btn-secondary:disabled,
.btn-tertiary:disabled {
  opacity: 0.45;
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.btn-tertiary {
  border: none;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  background: var(--teal);
  color: #fff;
  box-shadow: 0 10px 30px rgba(47, 140, 140, 0.25);
}

/* The card stacks its header + canvas and lets the canvas grow to fill the row
   height, so no empty space is left below the 3D view. */
/* app-main > ws-main > viewer-card all stretch, so the canvas owns the window. */
.ws-main {
  flex: 1;
  min-width: 0;
  display: flex;
}

.viewer-card {
  flex: 1;
  min-width: 0;
  background: var(--panel);
  display: flex;
  flex-direction: column;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.card-header h2 {
  margin: 0;
  font-size: 1.2rem;
}

.viewer-canvas {
  width: 100%;
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
  background: radial-gradient(circle at 20% 20%, #f2f6ff, #e6e2dc);
  overflow: hidden;
}

/* The WebGL canvas is taken out of flow (absolute) on purpose: renderer.setSize()
   writes the backing-buffer size (CSS px x devicePixelRatio) to the canvas
   width/height attributes, and an in-flow canvas would report that as its
   intrinsic size. Because .viewer-canvas is height:auto (flex-basis auto), that
   intrinsic height would grow the container, the ResizeObserver would call
   setSize() again with the larger box, and on a HiDPI display (dpr > 1) the
   viewer would visibly stretch a bit further on every frame. Positioning it
   absolutely keeps the box driven only by the layout. */
/* Direct child only: the renderer appends its canvas straight into the
   container, while the histogram canvas lives inside an analyzer panel and must
   stay in normal flow. */
.viewer-canvas > canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.table-wrap {
  max-height: 340px;
  overflow: auto;
  border-radius: 16px;
  border: 1px solid rgba(13, 19, 23, 0.08);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.data-table thead {
  background: #f1ede7;
  position: sticky;
  top: 0;
  z-index: 1;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(13, 19, 23, 0.08);
  text-align: left;
}

.data-table tr.best3-selected td {
  background: rgba(47, 140, 140, 0.10);
  font-weight: 600;
}

.metric-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.metric-row strong {
  display: block;
  font-size: 1.3rem;
  margin-top: 6px;
}

.metric-row small {
  color: var(--muted);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
  font-size: 0.85rem;
}

.metric-grid strong {
  display: block;
  font-size: 1rem;
  margin-top: 4px;
}

@media (max-width: 720px) {
  .metric-row {
    grid-template-columns: 1fr;
  }
}

/* ================================================
   Viewer header controls (FOV slider + fullscreen btn + legend)
   ================================================ */

.viewer-header-controls {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: nowrap;
}

.fov-control {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.fov-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  min-width: 62px;
  text-align: right;
}

.fov-slider {
  width: 90px;
  accent-color: var(--accent);
  cursor: pointer;
}

.viewer-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(13, 19, 23, 0.14);
  border-radius: 10px;
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
  flex-shrink: 0;
}

.viewer-icon-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

/* ================================================
   Fullscreen: viewer fills viewport
   ================================================ */

/* The document element is what goes fullscreen (see workspace-app.js), so the
   panels, drop hint and probe keep working; body.ws-fullscreen then hides the
   app bar and floats its view controls over the canvas instead. */
html:fullscreen,
html:-webkit-full-screen {
  width: 100%;
  height: 100%;
  background: #0d1317;
}

body.ws-fullscreen .ws-appbar {
  display: none;
}

.ws-float-controls {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 25;
  display: none;
  align-items: center;
  gap: 14px;
  padding: 6px 14px;
  border-radius: 14px;
  background: rgba(13, 19, 23, 0.55);
  backdrop-filter: blur(14px);
  box-shadow: 0 12px 30px rgba(13, 19, 23, 0.35);
}

body.ws-fullscreen .ws-float-controls {
  display: flex;
}

.ws-float-controls .fov-label {
  color: rgba(255, 255, 255, 0.82);
}

.ws-float-controls .viewer-icon-btn {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.24);
  color: #fff;
}

.ws-float-controls .viewer-icon-btn:hover {
  background: rgba(255, 255, 255, 0.24);
  border-color: #fff;
  color: #fff;
}


/* ================================================
   Panel internals shared by the Objects list
   ================================================ */

/* The Objects box sits on the left; the analyzer stack owns the right side. */

.overlay-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px;
  font-size: 0.82rem;
}

.overlay-row + .overlay-row {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.overlay-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  flex: 1;
  min-width: 0;
}

.overlay-label input[type="checkbox"] {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  cursor: pointer;
}

.overlay-model-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.overlay-opacity-slider {
  width: 70px;
  flex-shrink: 0;
  accent-color: var(--teal);
}

.overlay-color-picker {
  width: 28px;
  height: 28px;
  border: none;
  padding: 0;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  border-radius: 6px;
  overflow: hidden;
}

.overlay-color-picker:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.overlay-delete-btn {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 6px;
  background: rgba(180, 30, 30, 0.5);
  color: #fff;
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease;
}

.overlay-delete-btn:hover {
  background: rgba(220, 40, 40, 0.8);
}

.overlay-model-rows:not(:empty) {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 4px;
}

@media (max-width: 520px) {
  .fov-slider {
    width: 64px;
  }

  .fov-label {
    display: none;
  }
}

/* ================================================
   Thickness Analyzer
   ================================================ */

.thickness-progress {
  margin-top: 12px;
  position: relative;
  height: 18px;
  border-radius: 999px;
  background: rgba(13, 19, 23, 0.08);
  overflow: hidden;
}

.thickness-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--teal), var(--accent));
  transition: width 0.15s ease;
}

.thickness-progress-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink);
}

.thickness-controls {
  display: grid;
  gap: 16px;
  margin-bottom: 20px;
}

.thickness-field {
  display: grid;
  gap: 8px;
}

/* Two control fields side by side to save vertical space. */
.thickness-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.thickness-field-row .thickness-segmented {
  width: 100%;
}

.thickness-field-row .seg-btn {
  flex: 1;
  text-align: center;
  padding-left: 0;
  padding-right: 0;
}

@media (max-width: 560px) {
  .thickness-field-row {
    grid-template-columns: 1fr;
  }
}

.thickness-field-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.thickness-select,
.thickness-number {
  padding: 9px 12px;
  border-radius: 12px;
  border: 1px solid rgba(13, 19, 23, 0.15);
  background: #faf7f2;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--ink);
}

.thickness-threshold-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.thickness-range {
  flex: 1;
  accent-color: var(--accent);
  cursor: pointer;
}

.thickness-number {
  width: 86px;
  flex-shrink: 0;
}

.thickness-segmented {
  display: inline-flex;
  border: 1px solid rgba(13, 19, 23, 0.15);
  border-radius: 999px;
  overflow: hidden;
  width: fit-content;
}

.thickness-segmented .seg-btn {
  border: none;
  background: transparent;
  padding: 8px 18px;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease;
}

.thickness-segmented .seg-btn.active {
  background: var(--accent);
  color: #fff;
}

.thickness-inline-check {
  float: right;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-transform: none;
  letter-spacing: normal;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
}

.thickness-inline-check input {
  accent-color: var(--accent);
  cursor: pointer;
}

.thickness-range-sep {
  color: var(--muted);
  font-weight: 600;
}

.thickness-mini-btn {
  padding: 8px 12px;
  font-size: 0.8rem;
  white-space: nowrap;
}

.thickness-number:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.thickness-hist-wrap {
  display: grid;
  gap: 8px;
  margin: 18px 0;
}

.thickness-hist {
  width: 100%;
  height: auto;
  background: #faf7f2;
  border: 1px solid rgba(13, 19, 23, 0.1);
  border-radius: 12px;
}

.thickness-export-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}

.thickness-legend {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(13, 19, 23, 0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  color: #fff;
  font-size: 0.78rem;
}

.thickness-legend-bar {
  width: 160px;
  height: 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.thickness-legend-label {
  font-variant-numeric: tabular-nums;
}

.thickness-legend-unit {
  color: rgba(255, 255, 255, 0.72);
}

.thickness-probe {
  position: absolute;
  z-index: 12;
  display: none;
  padding: 4px 9px;
  background: rgba(13, 19, 23, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: #fff;
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  white-space: nowrap;
}

/* ================================================
   Workspace (merged tab) — .ws-*
   ================================================ */

/* Slim bar above the canvas: page title, file loaders, status, view controls */
.ws-appbar {
  flex-shrink: 0;
  gap: 18px;
  margin: 0;
  padding: 9px 18px;
  border-bottom: 1px solid rgba(13, 19, 23, 0.10);
}

.ws-appbar-title {
  flex-shrink: 0;
  margin: 0;
  font-family: "Newsreader", serif;
  font-size: 1.15rem;
  font-weight: 600;
  white-space: nowrap;
}

.ws-appbar .status {
  flex: 1 1 120px;
  min-width: 0;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ws-appbar .viewer-header-controls {
  flex-shrink: 0;
}

.ws-load-group {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
  align-items: center;
}

.ws-load-btn {
  display: inline-flex;
  align-items: center;
  padding: 7px 13px;
  font-size: 0.78rem;
  box-shadow: none;
  cursor: pointer;
  user-select: none;
}

.ws-subhead {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 18px 0 10px;
  color: var(--ink);
}

.ws-layer-select,
.ws-format-select {
  max-width: 210px;
  padding: 7px 10px;
  border-radius: 10px;
  border: 1px solid rgba(13, 19, 23, 0.15);
  background: #faf7f2;
  font-family: inherit;
  font-size: 0.82rem;
  color: var(--ink);
  cursor: pointer;
}

.card-header .ws-layer-select {
  flex-shrink: 0;
}

/* Controls box: per-layer rows + action buttons.
   Two lines so the file name always stays readable: name on top, the
   opacity/color/action controls underneath. */
.ws-layer-row {
  display: block;
  padding: 9px 16px;
}

.ws-layer-head {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.ws-layer-head .overlay-label {
  flex: 0 0 auto;
}

.ws-layer-head .overlay-model-name {
  flex: 1;
  min-width: 0;
  cursor: text;
}

/* Inline rename: same box as the name it replaces, so the row does not jump. */
.ws-layer-rename {
  flex: 1;
  min-width: 0;
  padding: 1px 6px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: rgba(13, 19, 23, 0.85);
  color: #fff;
  font: inherit;
}

.ws-layer-rename:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.35);
}

.ws-layer-kind {
  flex-shrink: 0;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.85);
}

.ws-layer-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
  padding-left: 23px;
}

.ws-layer-actions .overlay-opacity-slider {
  width: 62px;
}

.ws-layer-btn {
  border: none;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  transition: background 0.15s ease;
  flex-shrink: 0;
}

.ws-layer-btn:hover {
  background: var(--accent);
}

/* On/off switch (tooth-ID labels): lit when on, outlined when off. */
.ws-layer-toggle[data-on="true"] {
  background: var(--accent);
}

.ws-layer-toggle[data-on="false"] {
  background: transparent;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.55);
}

.ws-layer-empty {
  padding: 8px 16px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
}

/* The Objects / ConstructionInfo Alignment column, mirroring the right stack */
.ws-panel-stack.ws-stack-left {
  right: auto;
  left: 14px;
  /* Keep clear of the floating auth bar in the bottom-left corner. */
  bottom: 56px;
}

/* The Objects rows bring their own padding and full-bleed separators. */
.ws-panel-body-flush {
  padding: 0;
}

.ws-panel-body-flush .overlay-model-rows:not(:empty) {
  border-top: none;
  padding-top: 0;
}

/* ConstructionInfo Alignment reads as one column inside a panel. */
.ws-panel .ws-align-cols {
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-bottom: 12px;
}

.ws-panel .ws-align-col h3 {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.92);
  margin: 0 0 7px;
}

.ws-panel .ws-align-col h3 small {
  text-transform: none;
  letter-spacing: normal;
  color: rgba(255, 255, 255, 0.5);
}

.ws-panel .ws-role-list {
  max-height: 168px;
  overflow-y: auto;
  scrollbar-width: thin;
}

.ws-panel .ws-role-row {
  padding: 6px 10px;
  font-size: 0.78rem;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

.ws-panel .ws-role-empty {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.78rem;
}

.ws-panel .ws-align-actions {
  gap: 8px;
}

/* Drag and drop: the whole canvas is the target. */
.ws-drop-hint {
  position: absolute;
  inset: 10px;
  z-index: 30;
  display: none;
  align-items: center;
  justify-content: center;
  border: 2px dashed rgba(255, 107, 53, 0.85);
  border-radius: var(--radius-md);
  background: rgba(13, 19, 23, 0.45);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  color: #fff;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-align: center;
  pointer-events: none;
}

.viewer-canvas.ws-dragover .ws-drop-hint {
  display: flex;
}

/* ================================================
   Analyzer panels — translucent, collapsible, inside the 3D viewer
   ================================================ */

.ws-panel-stack {
  position: absolute;
  top: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 10;
  width: min(400px, 30%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  /* The stack spans the full height, so let drags fall through the gaps to
     the canvas; only the panels themselves capture the pointer. */
  pointer-events: none;
}

.ws-panel-stack::-webkit-scrollbar {
  width: 8px;
}

.ws-panel-stack::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.25);
  border-radius: 999px;
}

.ws-panel {
  pointer-events: auto;
  flex-shrink: 0;
  background: rgba(13, 19, 23, 0.55);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 16px;
  font-family: "Space Grotesk", sans-serif;
  color: #fff;
}

/* Sticky, so a panel taller than the stack keeps its title on screen. This is
   why .ws-panel must not clip (overflow) — the head rounds its own corners. */
.ws-panel-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 10px 14px;
  background: rgba(13, 19, 23, 0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: none;
  border-radius: 15px 15px 0 0;
  color: #fff;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-align: left;
  cursor: pointer;
  transition: background 0.18s ease;
}

.ws-panel[data-open="false"] .ws-panel-head {
  background: transparent;
  border-radius: 15px;
}

.ws-panel-head:hover {
  background: rgba(255, 255, 255, 0.12);
}

.ws-panel[data-open="true"] .ws-panel-head {
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.ws-panel-caret {
  font-size: 0.7rem;
  line-height: 1;
  color: rgba(255, 255, 255, 0.7);
  transition: transform 0.18s ease;
}

.ws-panel[data-open="false"] .ws-panel-caret {
  transform: rotate(-90deg);
}

.ws-panel-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ws-panel[data-open="false"] .ws-panel-body {
  display: none;
}

/* Only the stack scrolls — the tables inside cap their own height, so nesting a
   second scrollbar here would just make the panels harder to drive. */
.ws-panel-body {
  padding: 12px 14px 14px;
  font-size: 0.85rem;
}

.ws-panel-body > *:last-child {
  margin-bottom: 0;
}

.ws-panel-row {
  margin-bottom: 12px;
}

.ws-panel-row .ws-layer-select {
  width: 100%;
  max-width: none;
}

/* ---- dark-surface overrides for the light-theme widgets inside ---------- */

.ws-panel .ws-subhead {
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 16px 0 8px;
}

.ws-panel .ws-panel-body > *:first-child,
.ws-panel .ws-subhead:first-child {
  margin-top: 0;
}

.ws-panel .ws-hint,
.ws-panel .status,
.ws-panel .thickness-field-label,
.ws-panel .thickness-range-sep {
  color: rgba(255, 255, 255, 0.62);
}

.ws-panel .ws-hint {
  margin: 10px 0;
  font-size: 0.8rem;
}

.ws-panel .ws-hint b {
  color: rgba(255, 255, 255, 0.85);
}

.ws-panel .table-wrap {
  max-height: 240px;
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
  border-radius: 12px;
}

.ws-panel .data-table {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.9);
}

.ws-panel .data-table thead {
  background: rgba(255, 255, 255, 0.10);
}

.ws-panel .data-table th,
.ws-panel .data-table td {
  border-bottom-color: rgba(255, 255, 255, 0.08);
  padding: 7px 10px;
  white-space: nowrap;
}

.ws-panel .data-table th {
  color: #fff;
}

.ws-panel .data-table tr.best3-selected td {
  background: rgba(255, 107, 53, 0.22);
}

.ws-panel .metric-row,
.ws-panel .metric-grid {
  gap: 10px;
}

.ws-panel .metric-row span,
.ws-panel .metric-row small,
.ws-panel .metric-grid small {
  color: rgba(255, 255, 255, 0.58);
}

.ws-panel .metric-row strong,
.ws-panel .metric-grid strong {
  color: #fff;
  font-size: 0.95rem;
}

.ws-panel .metric-row strong {
  font-size: 1.05rem;
}

.ws-panel .thickness-select,
.ws-panel .thickness-number,
.ws-panel .ws-layer-select,
.ws-panel .ws-format-select {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-size: 0.82rem;
}

.ws-panel select option {
  background: #16212a;
  color: #fff;
}

.ws-panel .thickness-segmented {
  border-color: rgba(255, 255, 255, 0.18);
}

.ws-panel .thickness-segmented .seg-btn {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.8rem;
  padding: 7px 12px;
}

.ws-panel .thickness-segmented .seg-btn.active {
  background: var(--accent);
  color: #fff;
}

.ws-panel .thickness-inline-check,
.ws-panel .ws-heatmap-check {
  color: rgba(255, 255, 255, 0.85);
}

.ws-panel .thickness-hist {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
}

.ws-panel .thickness-progress {
  background: rgba(255, 255, 255, 0.14);
}

.ws-panel .thickness-progress-label {
  color: #fff;
}

.ws-panel .thickness-controls {
  gap: 12px;
  margin-bottom: 14px;
}

.ws-panel .btn-primary,
.ws-panel .btn-secondary,
.ws-panel .btn-tertiary {
  padding: 8px 14px;
  font-size: 0.8rem;
  box-shadow: none;
}

.ws-panel .btn-secondary {
  background: rgba(255, 255, 255, 0.16);
}

.ws-panel .card-header {
  margin-bottom: 10px;
  gap: 10px;
}

.ws-panel .card-header .ws-subhead {
  margin: 0;
}

.ws-panel .ws-place-new,
.ws-panel .ws-place-actions,
.ws-panel .thickness-export-row {
  gap: 8px;
}

/* Narrow viewports: the panels would swallow the canvas, so cap their reach. */
@media (max-width: 900px) {
  .ws-panel-stack {
    width: min(320px, 40%);
  }

}

/* Bottom alignment section */

.ws-align-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
  margin-bottom: 18px;
}

.ws-align-col {
  min-width: 0;
}

.ws-align-col h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.ws-align-col h3 small {
  color: var(--muted);
  font-weight: 500;
}

.ws-role-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
}

.ws-role-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid rgba(13, 19, 23, 0.08);
  background: #faf7f2;
  cursor: pointer;
  font-size: 0.88rem;
}

.ws-role-row input {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  cursor: pointer;
}

.ws-role-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ws-role-kind {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  flex-shrink: 0;
}

.ws-role-kind.ci {
  background: var(--accent-soft);
  color: var(--accent);
}

.ws-role-kind.mesh {
  background: rgba(47, 140, 140, 0.16);
  color: var(--teal);
}

.ws-align-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.ws-role-empty {
  color: var(--muted);
  font-size: 0.85rem;
  padding: 6px 2px;
}

/* Placement section */
.ws-place-new {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.ws-place-new .ws-layer-select {
  flex: 1;
  min-width: 140px;
  max-width: none;
}

.ws-place-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.ws-heatmap-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--ink);
  cursor: pointer;
}

.ws-heatmap-check input {
  accent-color: var(--accent);
  cursor: pointer;
}

/* Alignment metrics grid (right panel) */
.align-metrics {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 1100px) {

  .ws-align-cols {
    grid-template-columns: minmax(0, 1fr);
  }
}
/* ================================================
   Auth bar, sign-in pages, usage analytics, preset actions
   ================================================ */

/* Floats over the workspace canvas; the workspace body never scrolls.
   Bottom-LEFT on purpose: both panel stacks span the full viewer height, and
   the left one (Objects + Alignment) has room to give up, while the right one
   carries five panels. .ws-stack-left reserves the matching space below. */
.app-auth-bar {
  position: fixed;
  left: 14px;
  bottom: 10px;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 6px 20px rgba(13, 19, 23, 0.14);
  font-size: 0.78rem;
}

.app-auth-link {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
}

.app-auth-link:hover {
  color: var(--accent);
}

.app-auth-user {
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink);
  font-weight: 600;
}

.app-auth-form {
  margin: 0;
  display: inline;
}

.app-auth-button {
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  font: inherit;
}

/* Sign-in / registration ------------------------------------------------ */

.auth-page,
.usage-page {
  width: 100%;
  height: 100%;
  overflow-y: auto;
  padding: 32px 20px 64px;
}

.auth-page {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--panel);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 32px;
}

.auth-title {
  margin: 0 0 6px;
  font-size: 1.4rem;
}

.auth-sub {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
}

.auth-input {
  padding: 10px 12px;
  border: 1px solid rgba(13, 19, 23, 0.16);
  border-radius: 10px;
  font: inherit;
  font-weight: 400;
  color: var(--ink);
  background: #fff;
}

.auth-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.auth-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

.auth-submit {
  margin-top: 6px;
  width: 100%;
  justify-content: center;
}

.auth-error {
  color: #b00020;
  font-size: 0.78rem;
  font-weight: 500;
}

.auth-error:empty,
.auth-error ul:empty {
  display: none;
}

.auth-foot {
  margin: 20px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

/* Usage analytics ------------------------------------------------------- */

.usage-card {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--panel);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 28px 32px 36px;
}

.usage-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.usage-head-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.usage-title {
  margin: 0;
  font-size: 1.35rem;
}

.usage-range {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 600;
}

.usage-status {
  margin: 6px 0 20px;
  font-size: 0.82rem;
  color: var(--muted);
}

.usage-metrics {
  margin-bottom: 26px;
}

.usage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
  margin-bottom: 26px;
}

.usage-block h2 {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

.usage-empty {
  color: var(--muted);
  font-style: italic;
}

/* Material preset actions ------------------------------------------------ */

.preset-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.preset-hint {
  flex: 1 1 100%;
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.4;
}

.preset-hint-error {
  color: #b00020;
}

.preset-hint:empty {
  display: none;
}