/* ── MakerCAD — SolidWorks-style Layout ── */

:root {
  --sw-bg: #bcc4ca;
  --sw-viewport-bg: linear-gradient(180deg, #c8cdd4 0%, #a8b0b8 100%);
  --sw-toolbar-bg: #f0f0f0;
  --sw-toolbar-border: #c0c0c0;
  --sw-panel-bg: #f7f7f7;
  --sw-panel-border: #d0d0d0;
  --sw-panel-header: #e4e8ec;
  --sw-text: #1a1a1a;
  --sw-text-dim: #606060;
  --sw-text-light: #808080;
  --sw-accent: #0078d4;
  --sw-accent-light: #e8f2fc;
  --sw-select: #cde4f7;
  --sw-select-border: #90c8f8;
  --sw-tab-active: #ffffff;
  --sw-tab-hover: #e8ecf0;
  --sw-icon-blue: #3a7cc2;
  --sw-icon-green: #4caf50;
  --sw-icon-orange: #e8890c;
  --sw-icon-red: #d32f2f;
  --sw-origin: #c06000;
  --sw-plane-front: #cc4444;
  --sw-plane-top: #44aa44;
  --sw-plane-right: #4444cc;
  --sw-shadow: 0 1px 3px rgba(0,0,0,.15);
}

#cad-app {
  position: fixed;
  inset: 0;
  z-index: 550;
  display: none;
  flex-direction: column;
  background: var(--sw-bg);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-size: 12px;
  color: var(--sw-text);
  overflow: hidden;
  user-select: none;
}
#cad-app.visible { display: flex; }

/* ═══ MENU BAR ═══ */
#cad-menubar {
  display: flex;
  align-items: center;
  height: 24px;
  padding: 0 4px;
  background: var(--sw-toolbar-bg);
  border-bottom: 1px solid var(--sw-toolbar-border);
  font-size: 11px;
  flex-shrink: 0;
}
.cad-menu-item {
  padding: 2px 10px;
  cursor: pointer;
  border-radius: 2px;
}
.cad-menu-item:hover { background: var(--sw-select); }
.cad-menu-spacer { flex: 1; }
.cad-menu-title {
  font-weight: 600;
  color: var(--sw-text-dim);
  font-size: 11px;
  margin-right: 8px;
}
#cad-menu-filename {
  color: var(--sw-text-dim);
  font-size: 11px;
}
.cad-menu-winbtns {
  display: flex;
  margin-left: 4px;
}
.cad-menu-winbtns button {
  width: 30px;
  height: 22px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  color: var(--sw-text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cad-menu-winbtns button:hover { background: #ddd; }
.cad-menu-winbtns button.cad-close-btn:hover {
  background: #e81123;
  color: #fff;
}

/* File dropdown */
.cad-menu-dropdown-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

#cad-file-menu {
  display: none;
  position: absolute;
  top: 22px;
  left: 0;
  min-width: 150px;
  background: #fff;
  border: 1px solid #b8b8b8;
  box-shadow: 0 4px 14px rgba(0,0,0,.18);
  border-radius: 4px;
  padding: 4px;
  z-index: 800;
}
#cad-file-menu.visible { display: block; }

.cad-file-menu-btn {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  border-radius: 3px;
  padding: 7px 10px;
  font-family: inherit;
  font-size: 11px;
  color: var(--sw-text);
  cursor: pointer;
}
.cad-file-menu-btn:hover { background: var(--sw-select); }

/* ═══ TABS ═══ */
#cad-tabs {
  display: none;
  align-items: flex-end;
  height: 26px;
  padding: 0 4px;
  background: var(--sw-toolbar-bg);
  border-bottom: 1px solid var(--sw-toolbar-border);
  flex-shrink: 0;
}
#cad-tabs.visible { display: flex; }

.cad-tab {
  padding: 4px 14px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 500;
  color: var(--sw-text-dim);
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 3px 3px 0 0;
  margin-bottom: -1px;
}
.cad-tab:hover { background: var(--sw-tab-hover); }
.cad-tab.active {
  background: var(--sw-tab-active);
  border-color: var(--sw-toolbar-border);
  color: var(--sw-text);
  font-weight: 600;
}

/* ═══ RIBBON ═══ */
#cad-ribbon {
  display: none;
  align-items: stretch;
  min-height: 70px;
  padding: 4px 6px;
  background: var(--sw-tab-active);
  border-bottom: 1px solid var(--sw-toolbar-border);
  gap: 2px;
  flex-shrink: 0;
  overflow-x: auto;
}
#cad-ribbon.visible { display: flex; }

.cad-ribbon-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2px 10px;
  border-right: 1px solid #e0e0e0;
  gap: 2px;
}
.cad-ribbon-group:last-child { border-right: none; }

.cad-ribbon-group-title {
  font-size: 9px;
  color: var(--sw-text-light);
  text-transform: uppercase;
  letter-spacing: .3px;
  margin-top: auto;
  padding-top: 2px;
}
.cad-ribbon-row {
  display: flex;
  gap: 1px;
  align-items: center;
}
.cad-ribbon-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3px 8px;
  min-width: 42px;
  border: 1px solid transparent;
  border-radius: 3px;
  cursor: pointer;
  background: transparent;
  gap: 1px;
}
.cad-ribbon-btn:hover {
  background: var(--sw-select);
  border-color: var(--sw-select-border);
}
.cad-ribbon-btn.active {
  background: var(--sw-accent-light);
  border-color: var(--sw-accent);
}
.cad-ribbon-btn.primary-btn {
  min-width: 50px;
  padding: 4px 8px;
}
.cad-ribbon-btn svg { width: 20px; height: 20px; }
.cad-ribbon-btn.primary-btn svg { width: 26px; height: 26px; }
.cad-ribbon-btn span {
  font-size: 9px;
  color: var(--sw-text-dim);
  white-space: nowrap;
}
.cad-ribbon-btn.primary-btn span { font-size: 10px; }

/* ═══ BODY ═══ */
#cad-body {
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  position: relative;
  overflow: hidden;
}
#cad-body::before { content: none; }

/* ── Left Panel ── */
#cad-left-panel {
  display: none;
  width: 260px;
  min-width: 260px;
  background: var(--sw-panel-bg);
  border-right: 1px solid var(--sw-panel-border);
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}
#cad-left-panel.visible { display: flex; }

.cad-panel-tabs {
  display: flex;
  height: 26px;
  background: var(--sw-panel-header);
  border-bottom: 1px solid var(--sw-panel-border);
}
.cad-panel-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-right: 1px solid var(--sw-panel-border);
  font-size: 10px;
  color: var(--sw-text-dim);
  gap: 4px;
}
.cad-panel-tab:last-child { border-right: none; }
.cad-panel-tab:hover { background: rgba(0,0,0,.03); }
.cad-panel-tab.active {
  background: var(--sw-panel-bg);
  color: var(--sw-text);
  font-weight: 600;
}
.cad-panel-tab svg { width: 14px; height: 14px; }

.cad-panel-filter {
  display: flex;
  align-items: center;
  padding: 3px 6px;
  gap: 2px;
  border-bottom: 1px solid var(--sw-panel-border);
  background: #fff;
}
.cad-panel-filter input {
  flex: 1;
  border: 1px solid #ccc;
  border-radius: 2px;
  padding: 2px 6px;
  font-size: 11px;
  font-family: inherit;
  outline: none;
}
.cad-panel-filter input:focus { border-color: var(--sw-accent); }

/* Feature Tree */
#cad-feature-tree {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 2px 0;
}
.cad-tree-item {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 1px 4px 1px 8px;
  cursor: pointer;
  min-height: 20px;
  font-size: 12px;
  border: 1px solid transparent;
}
.cad-tree-item:hover { background: rgba(0,120,212,.06); }
.cad-tree-item.selected {
  background: var(--sw-select);
  border-color: var(--sw-select-border);
}
.cad-tree-item.indent-1 { padding-left: 24px; }
.cad-tree-item.indent-2 { padding-left: 42px; }

.cad-tree-expand {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  color: var(--sw-text-dim);
  cursor: pointer;
}
.cad-tree-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cad-tree-icon svg { width: 14px; height: 14px; }
.cad-tree-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cad-tree-icon.icon-part svg { color: var(--sw-icon-blue); }
.cad-tree-icon.icon-plane svg { color: var(--sw-plane-front); }
.cad-tree-icon.icon-plane-top svg { color: var(--sw-plane-top); }
.cad-tree-icon.icon-plane-right svg { color: var(--sw-plane-right); }
.cad-tree-icon.icon-origin svg { color: var(--sw-origin); }
.cad-tree-icon.icon-sketch svg { color: var(--sw-icon-orange); }
.cad-tree-icon.icon-extrude svg { color: var(--sw-icon-green); }
.cad-tree-icon.icon-cut svg { color: var(--sw-icon-red); }
.cad-tree-icon.icon-material svg { color: var(--sw-text-light); }
.cad-tree-icon.icon-equations svg { color: #9c27b0; }

/* ═══ 3D VIEWPORT ═══ */
#cad-viewport {
  display: none;
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  background: var(--sw-viewport-bg);
  overflow: hidden;
}
#cad-viewport.visible { display: block; }

#cad-viewport > canvas:not(#cad-sketch-canvas) {
  display: block;
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  touch-action: none;
}

/* ═══ SKETCH CANVAS (2D overlay for drawing) ═══ */
#cad-sketch-canvas {
  display: none !important;
  position: absolute;
  inset: 0;
  z-index: 5;
  cursor: crosshair;
  pointer-events: none;
  background: transparent;
}
#cad-sketch-canvas.visible {
  display: block !important;
  pointer-events: auto;
}

/* Plane overlay */
#cad-plane-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.25);
  z-index: 20;
  align-items: center;
  justify-content: center;
}
#cad-plane-overlay.visible { display: flex; }

.cad-plane-dialog {
  background: #fff;
  border: 1px solid #aaa;
  border-radius: 6px;
  padding: 20px 28px;
  box-shadow: 0 8px 30px rgba(0,0,0,.25);
  text-align: center;
  min-width: 280px;
}
.cad-plane-dialog h3 {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 600;
}
.cad-plane-dialog p {
  margin: 0 0 16px;
  font-size: 11px;
  color: var(--sw-text-dim);
}
.cad-plane-options {
  display: flex;
  gap: 10px;
  justify-content: center;
}
.cad-plane-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 18px;
  border: 2px solid #ddd;
  border-radius: 6px;
  cursor: pointer;
  background: #fafafa;
  min-width: 70px;
  transition: all .15s;
}
.cad-plane-option:hover {
  border-color: var(--sw-accent);
  background: var(--sw-accent-light);
}
.cad-plane-option svg { width: 32px; height: 32px; }
.cad-plane-option span {
  font-size: 11px;
  font-weight: 600;
}
.cad-plane-option.front-plane { color: var(--sw-plane-front); }
.cad-plane-option.top-plane { color: var(--sw-plane-top); }
.cad-plane-option.right-plane { color: var(--sw-plane-right); }

.cad-plane-cancel {
  margin-top: 14px;
  padding: 5px 16px;
  background: #eee;
  border: 1px solid #ccc;
  border-radius: 3px;
  cursor: pointer;
  font-size: 11px;
  color: var(--sw-text-dim);
}
.cad-plane-cancel:hover { background: #ddd; }

/* Constraint panel overlay */
#cad-constraint-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  display: flex;
  flex-direction: column;
  background: var(--sw-panel-bg);
  border-left: 1px solid var(--sw-panel-border);
  box-shadow: -2px 0 10px rgba(0,0,0,.08);
  z-index: 25;
  transform: translateX(100%);
  transition: transform .18s ease;
  pointer-events: none;
}
#cad-constraint-panel.visible {
  transform: translateX(0);
  pointer-events: auto;
}

.cad-constraint-header {
  height: 26px;
  min-height: 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  background: var(--sw-panel-header);
  border-bottom: 1px solid var(--sw-panel-border);
  font-size: 11px;
  font-weight: 600;
}
.cad-constraint-header button {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  color: var(--sw-text-dim);
}
.cad-constraint-header button:hover { color: var(--sw-text); }

#cad-constraint-content {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 10px;
  background: var(--sw-panel-bg);
}

.cad-constraint-empty {
  color: var(--sw-text-light);
  font-size: 11px;
  line-height: 1.45;
}
.cad-constraint-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.cad-constraint-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--sw-text);
}
.cad-constraint-subtitle {
  margin-top: 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--sw-text-dim);
}
.cad-constraint-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid #eee;
  font-size: 11px;
}
.cad-constraint-row label { color: var(--sw-text-dim); }

.cad-constraint-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.cad-constraint-btn {
  padding: 6px 10px;
  border: 1px solid #bbb;
  border-radius: 3px;
  background: #f6f6f6;
  cursor: pointer;
  font-family: inherit;
  font-size: 11px;
}
.cad-constraint-btn:hover { background: #ececec; }
.cad-constraint-btn.active {
  background: var(--sw-accent-light);
  border-color: var(--sw-accent);
  color: var(--sw-accent);
  font-weight: 600;
}

.cad-constraint-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 6px 8px;
  margin-top: 6px;
  border: 1px solid #ddd;
  border-radius: 4px;
  background: #fafafa;
  cursor: pointer;
}
.cad-constraint-item.selected {
  border-color: var(--sw-accent);
  background: var(--sw-accent-light);
}
.cad-constraint-item-text {
  flex: 1;
  font-size: 11px;
  line-height: 1.3;
}
.cad-constraint-remove {
  padding: 4px 8px;
  border: 1px solid #bbb;
  border-radius: 3px;
  background: #f3f3f3;
  cursor: pointer;
  font-size: 10px;
}

/* Sketch bar */
#cad-sketch-bar {
  display: none;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 32px;
  background: rgba(0,120,212,.92);
  color: #fff;
  font-size: 11px;
  font-weight: 500;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  z-index: 10;
}
#cad-sketch-bar.visible { display: flex; }

#cad-sketch-bar button {
  padding: 3px 14px;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,.4);
  background: rgba(255,255,255,.15);
  color: #fff;
  cursor: pointer;
  font-size: 11px;
  font-family: inherit;
}
#cad-sketch-bar button:hover { background: rgba(255,255,255,.25); }
#cad-sketch-bar .finish-btn {
  background: #fff;
  color: var(--sw-accent);
  border-color: #fff;
  font-weight: 600;
}

/* Status */
#cad-status {
  display: none;
  align-items: center;
  justify-content: space-between;
  height: 22px;
  padding: 0 8px;
  background: var(--sw-toolbar-bg);
  border-top: 1px solid var(--sw-toolbar-border);
  font-size: 10px;
  color: var(--sw-text-dim);
  flex-shrink: 0;
}
#cad-status.visible { display: flex; }

/* ═══ LAUNCHER ═══ */
#cad-launcher {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: linear-gradient(135deg, #e8ecf0 0%, #d0d6dc 100%);
}
.cad-launcher-logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--sw-accent);
  margin-bottom: 2px;
}
.cad-launcher-sub {
  font-size: 11px;
  color: var(--sw-text-dim);
  margin-bottom: 36px;
}
.cad-launch-section {
  width: 100%;
  max-width: 480px;
  margin-bottom: 28px;
}
.cad-launch-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--sw-text-dim);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.cad-new-btns {
  display: flex;
  gap: 10px;
}
.cad-new-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 14px;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 4px;
  cursor: pointer;
}
.cad-new-btn:hover {
  border-color: var(--sw-accent);
  box-shadow: 0 2px 12px rgba(0,120,212,.15);
  transform: translateY(-1px);
}
.cad-new-btn svg {
  width: 28px;
  height: 28px;
  color: var(--sw-accent);
}
.cad-new-btn span {
  font-size: 12px;
  font-weight: 500;
}
.cad-recent-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cad-recent-empty {
  padding: 16px;
  text-align: center;
  color: var(--sw-text-light);
  font-size: 11px;
  background: #fff;
  border: 1px dashed #ccc;
  border-radius: 4px;
}
.cad-recent-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 3px;
  cursor: pointer;
}
.cad-recent-item:hover {
  border-color: var(--sw-accent);
  background: var(--sw-accent-light);
}
.cad-recent-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sw-icon-blue);
}
.cad-recent-icon svg { width: 20px; height: 20px; }
.cad-recent-info {
  flex: 1;
  min-width: 0;
}
.cad-recent-name {
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cad-recent-meta {
  font-size: 10px;
  color: var(--sw-text-light);
  margin-top: 1px;
}
.cad-recent-actions button {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  color: var(--sw-text-light);
}
.cad-recent-actions button:hover {
  background: #eee;
  color: var(--sw-icon-red);
}

/* Save Dialog */
#cad-save-dialog {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 600;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.35);
}
#cad-save-dialog.visible { display: flex; }

.cad-dialog {
  background: #fff;
  border: 1px solid #aaa;
  border-radius: 6px;
  padding: 20px 24px;
  width: 340px;
  box-shadow: 0 8px 30px rgba(0,0,0,.2);
}
.cad-dialog h3 {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 600;
}
.cad-dialog-field { margin-bottom: 12px; }
.cad-dialog-field label {
  display: block;
  font-size: 11px;
  color: var(--sw-text-dim);
  margin-bottom: 4px;
}
.cad-dialog-field input {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid #bbb;
  border-radius: 3px;
  font-family: inherit;
  font-size: 12px;
  outline: none;
  box-sizing: border-box;
}
.cad-dialog-field input:focus { border-color: var(--sw-accent); }

.cad-dialog-btns {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
  margin-top: 16px;
}
.cad-dialog-btns button {
  padding: 6px 16px;
  border-radius: 3px;
  font-family: inherit;
  font-size: 11px;
  cursor: pointer;
  border: 1px solid #bbb;
}
.cad-btn-secondary {
  background: #f0f0f0;
  color: var(--sw-text);
}
.cad-btn-secondary:hover { background: #e0e0e0; }
.cad-btn-primary {
  background: var(--sw-accent);
  color: #fff;
  border-color: var(--sw-accent);
  font-weight: 600;
}
.cad-btn-primary:hover { background: #006abc; }

/* Export Dialog */
#cad-export-dialog {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 600;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.35);
}
#cad-export-dialog.visible { display: flex; }

#cad-export-format {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid #bbb;
  border-radius: 3px;
  font-family: inherit;
  font-size: 12px;
  outline: none;
  box-sizing: border-box;
}
#cad-export-format:focus { border-color: var(--sw-accent); }

/* Extrude dialog */
#cad-extrude-dialog {
  display: none;
  position: absolute;
  left: 270px;
  top: 10px;
  background: #fff;
  border: 1px solid #aaa;
  border-radius: 4px;
  padding: 14px 16px;
  min-width: 200px;
  z-index: 15;
  box-shadow: var(--sw-shadow);
}
#cad-extrude-dialog.visible { display: block; }

#cad-extrude-dialog h4 {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--sw-accent);
}
.cad-ext-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 11px;
}
.cad-ext-row label {
  min-width: 55px;
  color: var(--sw-text-dim);
}
.cad-ext-row input[type="number"],
.cad-ext-row select {
  width: 70px;
  padding: 3px 6px;
  border: 1px solid #bbb;
  border-radius: 2px;
  font-family: inherit;
  font-size: 11px;
  outline: none;
}
.cad-ext-row input[type="number"]:focus,
.cad-ext-row select:focus {
  border-color: var(--sw-accent);
}
.cad-ext-btns {
  display: flex;
  gap: 4px;
  margin-top: 10px;
}
.cad-ext-btns button { flex: 1; }

/* Scrollbar */
#cad-app ::-webkit-scrollbar { width: 12px; }
#cad-app ::-webkit-scrollbar-track { background: #f0f0f0; }
#cad-app ::-webkit-scrollbar-thumb {
  background: #c0c0c0;
  border: 2px solid #f0f0f0;
  border-radius: 6px;
}
#cad-app ::-webkit-scrollbar-thumb:hover { background: #a0a0a0; }

/* View cube */
#cad-view-cube {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 96px;
  height: 96px;
  z-index: 30;
  display: none;
  pointer-events: none;
}
#cad-view-cube.visible {
  display: block;
  pointer-events: auto;
}
.cad-view-cube-wrap {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transform: rotateX(-24deg) rotateY(36deg);
}
.cad-cube-face {
  position: absolute;
  width: 52px;
  height: 52px;
  border: 1px solid #8ea0b5;
  background: rgba(255,255,255,.92);
  color: #2c3a48;
  font-size: 10px;
  cursor: pointer;
  transition: background .12s ease, transform .12s ease;
}
.cad-cube-face:hover {
  background: #dcecff;
}
.cad-cube-front  { left: 22px; top: 22px; transform: translateZ(26px); }
.cad-cube-back   { left: 22px; top: 22px; transform: rotateY(180deg) translateZ(26px); }
.cad-cube-right  { left: 48px; top: 22px; transform: rotateY(90deg) translateZ(26px); }
.cad-cube-left   { left: -4px; top: 22px; transform: rotateY(-90deg) translateZ(26px); }
.cad-cube-top    { left: 22px; top: -4px; transform: rotateX(90deg) translateZ(26px); }
.cad-cube-bottom { left: 22px; top: 48px; transform: rotateX(-90deg) translateZ(26px); }