/* ===== Viewport overlays ===== */
.finish-edit-in-place-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 120;
  min-height: 34px;
  background: #b45309;
  color: #fff;
  padding: 6px 12px 6px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  font-weight: 500;
  box-sizing: border-box;
}

.finish-edit-in-place-title {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.finish-edit-in-place-button {
  flex: 0 0 auto;
  border: none;
  border-radius: 4px;
  background: #92400e;
  color: #fff;
  padding: 3px 10px;
  cursor: pointer;
  white-space: nowrap;
}

.finish-edit-in-place-button:hover {
  background: #78350f;
}

.cad-editing-in-place .viewcube-wrapper {
  top: 42px;
}

.cad-editing-in-place .viewport-home-btn {
  top: 208px;
}

.viewport-home-btn {
  position: absolute;
  top: 170px;
  right: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-primary);
  color: var(--text-muted);
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: all 0.15s;
  z-index: 10;
  opacity: 0.85;
}

.viewport-home-btn:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
  opacity: 1;
}

/* ===== Floating Tool Panel ===== */
.tool-panel {
  z-index: 20;
  min-width: 200px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(8px);
  user-select: none;
  overflow: hidden;
}

.tool-panel-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px 5px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-light);
  cursor: grab;
}

.tool-panel-header:active {
  cursor: grabbing;
}

.tool-panel-grip {
  color: var(--text-muted);
  flex-shrink: 0;
}

.tool-panel-title {
  flex: 1;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.7px;
}

.tool-panel-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
}

.tool-panel-close:hover {
  background: rgba(244, 67, 54, 0.1);
  color: var(--error);
}

.tool-panel-body {
  padding: 8px 10px 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tool-panel-hint {
  margin: 0;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.tool-panel-fields {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tool-panel-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.tool-panel-label {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.tool-panel-num-wrap {
  display: flex;
  align-items: center;
  gap: 3px;
}

.tool-panel-num {
  width: 64px;
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 12px;
  text-align: right;
  outline: none;
}

.tool-panel-num:focus {
  border-color: var(--accent);
}

.tool-panel-unit {
  font-size: 10px;
  color: var(--text-muted);
}

.tool-panel-select {
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 11px;
  outline: none;
  max-width: 100px;
}

.tool-panel-toggle {
  padding: 2px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  font-size: 10px;
  cursor: pointer;
  transition: all 0.12s;
  min-width: 36px;
}

.tool-panel-toggle.active {
  background: var(--bg-active);
  border-color: var(--accent);
  color: var(--accent);
}

.tool-panel-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  border-top: 1px solid var(--border-light);
  padding-top: 8px;
  margin-top: 2px;
}

.tool-panel-tool-btn {
  padding: 2px 6px;
  border: 1px solid var(--border-light);
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: all 0.1s;
}

.tool-panel-tool-btn:hover {
  color: var(--text-secondary);
  border-color: var(--border);
  background: var(--bg-hover);
}

.tool-panel-tool-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-light);
}

/* ===== Canvas Controls Bar (bottom-right, Fusion 360 style) ===== */
.canvas-controls-bar {
  position: absolute;
  bottom: 8px;
  right: 8px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  padding: 3px 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.cc-group {
  display: flex;
  align-items: center;
  gap: 1px;
}

.cc-group + .cc-group {
  margin-left: 2px;
  padding-left: 4px;
  border-left: 1px solid var(--border-light);
}

.cc-popover-anchor {
  position: relative;
}

.cc-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.12s ease;
}

.cc-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.cc-btn.active {
  background: var(--accent-light);
  color: var(--accent);
}

.cc-btn.disabled {
  opacity: 0.35;
  pointer-events: none;
}

.cc-separator {
  width: 1px;
  height: 18px;
  background: var(--border-light);
  margin: 0 3px;
}

/* Canvas control popovers */
.cc-popover {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-bottom: 6px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  min-width: 180px;
  z-index: 200;
}

.cc-popover h4 {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cc-popover-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
  font-size: 12px;
  color: var(--text-primary);
}

.cc-popover-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.cc-popover-row input[type="number"] {
  width: 54px;
  padding: 2px 4px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 12px;
  text-align: right;
}

.cc-popover-row select {
  padding: 2px 4px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 12px;
}

/* ===== Sketch Palette (Fusion 360 style floating panel) ===== */
.sketch-palette {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 150;
  width: 240px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  font-size: 12px;
  overflow: hidden;
}

.sketch-palette--dimension {
  right: 264px;
}

.sketch-inline-dimension-editor {
  display: flex;
  align-items: stretch;
  gap: 4px;
  padding: 2px;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--bg-input);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  white-space: nowrap;
}

.sketch-inline-dimension-input {
  width: 76px;
  padding: 5px 6px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--text-primary);
  font: 600 12px/1.2 inherit;
  text-align: center;
}

.sketch-inline-dimension-input:focus {
  outline: none;
}

.sketch-inline-dimension-action {
  min-width: 28px;
  padding: 0 6px;
  border: 1px solid var(--border-light);
  border-radius: 3px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}

.sketch-inline-dimension-action:hover {
  border-color: var(--accent);
}

.sketch-inline-dimension-action--confirm {
  background: #16a34a;
  border-color: #16a34a;
  color: #fff;
  font-size: 14px;
}

.sketch-inline-dimension-action--confirm:hover {
  background: #15803d;
  border-color: #15803d;
}

.sketch-inline-dimension-action--cancel {
  background: var(--bg-primary);
  border-color: var(--border-light);
  color: #b91c1c;
  font-size: 14px;
}

.sketch-inline-dimension-action--cancel:hover {
  background: #fef2f2;
  border-color: #b91c1c;
}

/* Parameter typeahead dropdown */
.sketch-dim-typeahead {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  min-width: 100%;
  margin: 0;
  padding: 3px;
  list-style: none;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.15);
  border-radius: 5px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.15);
  z-index: 10001;
  white-space: nowrap;
}

.sketch-dim-typeahead-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 5px 8px;
  border-radius: 3px;
  cursor: pointer;
  font-size: 12px;
}

.sketch-dim-typeahead-item:hover,
.sketch-dim-typeahead-item:focus {
  background: #eff6ff;
  outline: none;
}

.sketch-dim-typeahead-name {
  color: #1e3a8a;
  font-weight: 600;
}

.sketch-dim-typeahead-val {
  color: #64748b;
  font-size: 11px;
}

@media (max-width: 820px) {
  .sketch-palette--dimension {
    right: 12px;
    top: 12px;
    transform: none;
  }
}

.sketch-palette-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border-light);
  cursor: default;
}

.sketch-palette-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.sketch-palette-title {
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.5px;
  color: var(--text-primary);
  flex: 1;
}

.sketch-palette-overcon-badge {
  font-size: 10px;
  font-weight: 600;
  color: #ef4444;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
  border-radius: 3px;
  padding: 1px 5px;
  white-space: nowrap;
  flex-shrink: 0;
}

.sketch-palette-collapse,
.sketch-palette-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  border-radius: 3px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 9px;
}

.sketch-palette-collapse:hover,
.sketch-palette-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sketch-palette-body {
  padding: 4px 0;
}

.sketch-palette-section-header {
  padding: 6px 10px;
  font-weight: 700;
  font-size: 11px;
  color: var(--text-primary);
  cursor: pointer;
}

.sketch-palette-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 10px 4px 16px;
  min-height: 28px;
}

.sketch-palette-label {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 12px;
}

.sketch-palette-linetype {
  display: flex;
  gap: 4px;
}

.spl-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.12s ease;
}

.spl-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border);
  color: var(--text-primary);
}

.spl-btn.active {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

/* Custom checkbox */
.sketch-palette-check {
  position: relative;
  display: flex;
  align-items: center;
  cursor: pointer;
}

.sketch-palette-check input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.sketch-palette-checkmark {
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--border);
  border-radius: 3px;
  background: var(--bg-input);
  transition: all 0.12s ease;
  position: relative;
}

.sketch-palette-check input:checked + .sketch-palette-checkmark {
  background: var(--accent);
  border-color: var(--accent);
}

.sketch-palette-check input:checked + .sketch-palette-checkmark::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.sketch-palette-footer {
  padding: 8px 10px;
  border-top: 1px solid var(--border-light);
  margin-top: 4px;
}

.sketch-palette-finish {
  width: 100%;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.12s ease;
}

.sketch-palette-finish:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ── Narrow number inputs used inside palette rows ── */
.sketch-palette-input--narrow {
  width: 64px;
  padding: 3px 6px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 12px;
  text-align: right;
}

.sketch-palette-input--narrow:focus {
  outline: none;
  border-color: var(--accent);
}

/* ── Hint text inside palette body ── */
.sketch-palette-hint {
  padding: 2px 10px 2px 16px;
  font-size: 11px;
  color: var(--text-muted);
}

/* ── Small offset button ── */
.spl-btn--offset {
  width: 18px;
  height: 18px;
  font-size: 9px;
}

/* ── Row with wrapped content ── */
.sketch-palette-row--wrap {
  flex-wrap: wrap;
  gap: 4px;
}

/* ── Section header with extra top margin ── */
.sketch-palette-section-header--spaced {
  margin-top: 4px;
}

/* ── Column-direction row (label above control) ── */
.sketch-palette-row--col {
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

/* ── Multi-line text input (SK-A5) ── */
.sketch-palette-textarea {
  width: 100%;
  min-height: 56px;
  padding: 4px 6px;
  font-size: 12px;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  resize: vertical;
  outline: none;
  box-sizing: border-box;
}

.sketch-palette-textarea:focus {
  border-color: var(--accent);
}

/* ── 3D sketch plane label ── */
.sketch-palette-plane-label {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.sketch-palette-plane-label--active {
  color: #f97316;
}

/* Extrude / Press-Pull panel — uses the canonical tool-panel look.
   Only tool-specific overrides live here. */
/* ===================================================================
 * Tool panel — canonical look for ALL tool dialogs.
 * Floating, non-modal, top-right. Modeled on the original Extrude panel.
 *
 * Use:  <div className="tool-panel"> ... </div>
 *
 * Per-tool color variants for .tp-header-icon (e.g. .tp-header-icon.cut)
 * live in the tool's own CSS file, not here.
 * =================================================================== */
.tool-panel {
  position: absolute;
  right: 12px;
  top: 80px;
  z-index: 150;
  width: 272px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18), 0 2px 8px rgba(0, 0, 0, 0.08);
  font-size: 12px;
  overflow: hidden;
  backdrop-filter: blur(12px);
}
/* ── Header ── */
.tp-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border-light);
  user-select: none;
}
.tp-header-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  background: #6b7280; /* default — tools override with a brand color */
}
.tp-header-title {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  flex: 1;
}
.tp-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s ease;
}
.tp-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
/* ── Body ── */
.tp-body {
  padding: 6px 0;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
}
.tp-section {
  padding: 2px 12px;
}
.tp-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 0 4px;
}
/* ── Row layout ── */
.tp-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
  min-height: 30px;
  gap: 8px;
}
.tp-label {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  min-width: 60px;
}
/* ── Select ── */
.tp-select {
  flex: 1;
  min-width: 0;
  padding: 5px 8px;
  padding-right: 24px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 11px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.12s ease;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
}
.tp-select:hover {
  border-color: var(--border);
}
.tp-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}
.tp-select[multiple] {
  padding: 4px;
  padding-right: 4px;
  background-image: none;
}
.tp-select[multiple] option {
  padding: 3px 6px;
  border-radius: 3px;
}
.tp-select[multiple] option:checked {
  background: var(--accent);
  color: #fff;
}
.tp-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
/* ── Number input with unit ── */
.tp-input-group {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.12s ease;
  flex: 1;
  min-width: 0;
}
.tp-input-group:hover {
  border-color: var(--border);
}
.tp-input-group:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}
.tp-input-group input {
  width: 100%;
  min-width: 0;
  background: transparent;
  color: var(--text-primary);
  border: none;
  padding: 5px 8px;
  font-size: 11px;
  text-align: right;
  outline: none;
  font-variant-numeric: tabular-nums;
}
.tp-input-group input:disabled {
  opacity: 0.4;
}
.tp-unit {
  color: var(--text-muted);
  font-size: 10px;
  padding: 0 8px 0 2px;
  white-space: nowrap;
  user-select: none;
}
/* ── Toggle switch ── */
.tp-toggle {
  position: relative;
  width: 32px;
  height: 18px;
  flex-shrink: 0;
}
.tp-toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.tp-toggle-track {
  position: absolute;
  inset: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 9px;
  transition: all 0.15s ease;
  cursor: pointer;
}
.tp-toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: all 0.15s ease;
}
.tp-toggle input:checked + .tp-toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}
.tp-toggle input:checked + .tp-toggle-track::after {
  left: 16px;
  background: #fff;
}
/* ── Segmented icon button row (for type/style pickers) ── */
.tp-seg-icons {
  display: inline-flex;
  gap: 4px;
}
.tp-seg-icons__btn {
  width: 26px;
  height: 26px;
  padding: 2px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.1s ease;
}
.tp-seg-icons__btn:hover {
  background: var(--bg-hover);
  border-color: var(--border);
}
.tp-seg-icons__btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.tp-seg-icons__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
/* ── Collapsible section header ── */
.tp-collapse {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  padding: 6px 0 4px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-align: left;
}
.tp-collapse:hover { color: var(--text-secondary); }
.tp-collapse__chevron {
  transition: transform 0.12s ease;
  flex-shrink: 0;
}
.tp-collapse__chevron.open {
  transform: rotate(90deg);
}
/* ── Distance / extents dropdown + flip arrow ── */
.tp-units-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
}
.tp-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
}
.tp-icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
/* ── Selection chip (e.g. picked face/edge) ── */
.tp-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 4px 3px 8px;
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  font-size: 11px;
}
.tp-chip__clear {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.9);
  border-radius: 3px;
  cursor: pointer;
}
.tp-chip__clear:hover {
  background: rgba(255, 255, 255, 0.18);
}
.tp-pick-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.1s ease;
}
.tp-pick-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border);
}
.tp-pick-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
/* ── Divider ── */
.tp-divider {
  height: 1px;
  background: var(--border-light);
  margin: 4px 12px;
}
/* ── Actions footer ── */
.tp-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  padding: 8px 12px 10px;
  border-top: 1px solid var(--border-light);
}
.tp-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.12s ease;
  border: 1px solid transparent;
}
.tp-btn-cancel {
  background: var(--bg-elevated);
  border-color: var(--border-light);
  color: var(--text-secondary);
}
.tp-btn-cancel:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}
.tp-btn-ok {
  background: var(--accent);
  color: #fff;
}
.tp-btn-ok:hover {
  background: var(--accent-hover);
}
.tp-btn-ok:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.tp-header-icon.extrude { background: #3b82f6; }
.tp-header-icon.cut     { background: #ef4444; }
.tp-profile-list {
  max-height: 128px;
  overflow-y: auto;
  border: 1px solid var(--border, #d1d5db);
  border-radius: 4px;
  background: var(--panel-bg, #fff);
  padding: 3px;
}
.tp-profile-row {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  min-height: 24px;
  padding: 3px 6px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: inherit;
  font-size: 12px;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
}
.tp-profile-row.selected {
  background: rgba(59, 130, 246, 0.14);
}
.tp-profile-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 13px;
  height: 13px;
  flex: 0 0 13px;
  border: 1px solid var(--border, #9ca3af);
  border-radius: 2px;
  background: var(--panel-bg, #fff);
  color: #2563eb;
  font-size: 10px;
  line-height: 1;
}
.tp-profile-row span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
/* ===== Expression input feedback (ExtrudeDialog etc.) ===== */
.expr-error {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--error);
  margin-top: 4px;
}

.expr-resolved {
  font-size: 11px;
  color: var(--success);
  font-family: 'Consolas', monospace;
  margin-top: 4px;
}

/* ===================================================================
 * Tool panel — canonical look for ALL tool dialogs.
 * Floating, non-modal, top-right. Modeled on the original Extrude panel.
 *
 * Use:  <div className="tool-panel"> ... </div>
 *
 * Per-tool color variants for .tp-header-icon (e.g. .tp-header-icon.cut)
 * live in the tool's own CSS file, not here.
 * =================================================================== */

.tool-panel {
  position: absolute;
  right: 12px;
  top: 80px;
  z-index: 150;
  width: 272px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18), 0 2px 8px rgba(0, 0, 0, 0.08);
  font-size: 12px;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

/* ── Header ── */

.tp-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border-light);
  user-select: none;
}

.tp-header-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  background: #6b7280; /* default — tools override with a brand color */
}

.tp-header-title {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  flex: 1;
}

.tp-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s ease;
}

.tp-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ── Body ── */

.tp-body {
  padding: 6px 0;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
}

.tp-section {
  padding: 2px 12px;
}

.tp-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 0 4px;
}

/* ── Row layout ── */

.tp-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
  min-height: 30px;
  gap: 8px;
}

.tp-label {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  min-width: 60px;
}

/* ── Select ── */

.tp-select {
  flex: 1;
  min-width: 0;
  padding: 5px 8px;
  padding-right: 24px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 11px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.12s ease;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
}

.tp-select:hover {
  border-color: var(--border);
}

.tp-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.tp-select[multiple] {
  padding: 4px;
  padding-right: 4px;
  background-image: none;
}

.tp-select[multiple] option {
  padding: 3px 6px;
  border-radius: 3px;
}

.tp-select[multiple] option:checked {
  background: var(--accent);
  color: #fff;
}

.tp-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Number input with unit ── */

.tp-input-group {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.12s ease;
  flex: 1;
  min-width: 0;
}

.tp-input-group:hover {
  border-color: var(--border);
}

.tp-input-group:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.tp-input-group input {
  width: 100%;
  min-width: 0;
  background: transparent;
  color: var(--text-primary);
  border: none;
  padding: 5px 8px;
  font-size: 11px;
  text-align: right;
  outline: none;
  font-variant-numeric: tabular-nums;
}

.tp-input-group input:disabled {
  opacity: 0.4;
}

.tp-unit {
  color: var(--text-muted);
  font-size: 10px;
  padding: 0 8px 0 2px;
  white-space: nowrap;
  user-select: none;
}

/* ── Toggle switch ── */

.tp-toggle {
  position: relative;
  width: 32px;
  height: 18px;
  flex-shrink: 0;
}

.tp-toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.tp-toggle-track {
  position: absolute;
  inset: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 9px;
  transition: all 0.15s ease;
  cursor: pointer;
}

.tp-toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: all 0.15s ease;
}

.tp-toggle input:checked + .tp-toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}

.tp-toggle input:checked + .tp-toggle-track::after {
  left: 16px;
  background: #fff;
}

/* ── Segmented icon button row (for type/style pickers) ── */

.tp-seg-icons {
  display: inline-flex;
  gap: 4px;
}

.tp-seg-icons__btn {
  width: 26px;
  height: 26px;
  padding: 2px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.1s ease;
}

.tp-seg-icons__btn:hover {
  background: var(--bg-hover);
  border-color: var(--border);
}

.tp-seg-icons__btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.tp-seg-icons__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ── Collapsible section header ── */

.tp-collapse {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  padding: 6px 0 4px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-align: left;
}

.tp-collapse:hover { color: var(--text-secondary); }

.tp-collapse__chevron {
  transition: transform 0.12s ease;
  flex-shrink: 0;
}

.tp-collapse__chevron.open {
  transform: rotate(90deg);
}

/* ── Distance / extents dropdown + flip arrow ── */

.tp-units-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.tp-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
}

.tp-icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ── Selection chip (e.g. picked face/edge) ── */

.tp-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 4px 3px 8px;
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  font-size: 11px;
}

.tp-chip__clear {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.9);
  border-radius: 3px;
  cursor: pointer;
}

.tp-chip__clear:hover {
  background: rgba(255, 255, 255, 0.18);
}

.tp-pick-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.1s ease;
}

.tp-pick-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border);
}

.tp-pick-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── Divider ── */

.tp-divider {
  height: 1px;
  background: var(--border-light);
  margin: 4px 12px;
}

/* ── Actions footer ── */

.tp-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  padding: 8px 12px 10px;
  border-top: 1px solid var(--border-light);
}

.tp-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.12s ease;
  border: 1px solid transparent;
}

.tp-btn-cancel {
  background: var(--bg-elevated);
  border-color: var(--border-light);
  color: var(--text-secondary);
}

.tp-btn-cancel:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}

.tp-btn-ok {
  background: var(--accent);
  color: #fff;
}

.tp-btn-ok:hover {
  background: var(--accent-hover);
}

.tp-btn-ok:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.tp-header-icon.revolve { background: #0d9488; }

.revolve-face-prompt {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 11px;
  font-style: italic;
  flex: 1;
}
/* ===================================================================
 * Tool panel — canonical look for ALL tool dialogs.
 * Floating, non-modal, top-right. Modeled on the original Extrude panel.
 *
 * Use:  <div className="tool-panel"> ... </div>
 *
 * Per-tool color variants for .tp-header-icon (e.g. .tp-header-icon.cut)
 * live in the tool's own CSS file, not here.
 * =================================================================== */

.tool-panel {
  position: absolute;
  right: 12px;
  top: 80px;
  z-index: 150;
  width: 272px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18), 0 2px 8px rgba(0, 0, 0, 0.08);
  font-size: 12px;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

/* ── Header ── */

.tp-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--bg-toolbar);
  border-bottom: 1px solid var(--border-light);
  user-select: none;
}

.tp-header-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  background: #6b7280; /* default — tools override with a brand color */
}

.tp-header-title {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.3px;
  color: var(--text-primary);
  flex: 1;
}

.tp-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s ease;
}

.tp-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ── Body ── */

.tp-body {
  padding: 6px 0;
  max-height: calc(100vh - 180px);
  overflow-y: auto;
}

.tp-section {
  padding: 2px 12px;
}

.tp-section-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 6px 0 4px;
}

/* ── Row layout ── */

.tp-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 0;
  min-height: 30px;
  gap: 8px;
}

.tp-label {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  min-width: 60px;
}

/* ── Select ── */

.tp-select {
  flex: 1;
  min-width: 0;
  padding: 5px 8px;
  padding-right: 24px;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 11px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.12s ease;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23888' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
}

.tp-select:hover {
  border-color: var(--border);
}

.tp-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.tp-select[multiple] {
  padding: 4px;
  padding-right: 4px;
  background-image: none;
}

.tp-select[multiple] option {
  padding: 3px 6px;
  border-radius: 3px;
}

.tp-select[multiple] option:checked {
  background: var(--accent);
  color: #fff;
}

.tp-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Number input with unit ── */

.tp-input-group {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bg-input);
  border: 1px solid var(--border-light);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.12s ease;
  flex: 1;
  min-width: 0;
}

.tp-input-group:hover {
  border-color: var(--border);
}

.tp-input-group:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.tp-input-group input {
  width: 100%;
  min-width: 0;
  background: transparent;
  color: var(--text-primary);
  border: none;
  padding: 5px 8px;
  font-size: 11px;
  text-align: right;
  outline: none;
  font-variant-numeric: tabular-nums;
}

.tp-input-group input:disabled {
  opacity: 0.4;
}

.tp-unit {
  color: var(--text-muted);
  font-size: 10px;
  padding: 0 8px 0 2px;
  white-space: nowrap;
  user-select: none;
}

/* ── Toggle switch ── */

.tp-toggle {
  position: relative;
  width: 32px;
  height: 18px;
  flex-shrink: 0;
}

.tp-toggle input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.tp-toggle-track {
  position: absolute;
  inset: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 9px;
  transition: all 0.15s ease;
  cursor: pointer;
}

.tp-toggle-track::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: all 0.15s ease;
}

.tp-toggle input:checked + .tp-toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}

.tp-toggle input:checked + .tp-toggle-track::after {
  left: 16px;
  background: #fff;
}

/* ── Segmented icon button row (for type/style pickers) ── */

.tp-seg-icons {
  display: inline-flex;
  gap: 4px;
}

.tp-seg-icons__btn {
  width: 26px;
  height: 26px;
  padding: 2px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.1s ease;
}

.tp-seg-icons__btn:hover {
  background: var(--bg-hover);
  border-color: var(--border);
}

.tp-seg-icons__btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.tp-seg-icons__btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ── Collapsible section header ── */

.tp-collapse {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  padding: 6px 0 4px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-align: left;
}

.tp-collapse:hover { color: var(--text-secondary); }

.tp-collapse__chevron {
  transition: transform 0.12s ease;
  flex-shrink: 0;
}

.tp-collapse__chevron.open {
  transform: rotate(90deg);
}

/* ── Distance / extents dropdown + flip arrow ── */

.tp-units-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.tp-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-muted);
  cursor: pointer;
  flex-shrink: 0;
}

.tp-icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ── Selection chip (e.g. picked face/edge) ── */

.tp-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 4px 3px 8px;
  background: var(--accent);
  color: #fff;
  border-radius: 3px;
  font-size: 11px;
}

.tp-chip__clear {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.9);
  border-radius: 3px;
  cursor: pointer;
}

.tp-chip__clear:hover {
  background: rgba(255, 255, 255, 0.18);
}

.tp-pick-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.1s ease;
}

.tp-pick-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border);
}

.tp-pick-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ── Divider ── */

.tp-divider {
  height: 1px;
  background: var(--border-light);
  margin: 4px 12px;
}

/* ── Actions footer ── */

.tp-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  padding: 8px 12px 10px;
  border-top: 1px solid var(--border-light);
}

.tp-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: 5px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.12s ease;
  border: 1px solid transparent;
}

.tp-btn-cancel {
  background: var(--bg-elevated);
  border-color: var(--border-light);
  color: var(--text-secondary);
}

.tp-btn-cancel:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}

.tp-btn-ok {
  background: var(--accent);
  color: #fff;
}

.tp-btn-ok:hover {
  background: var(--accent-hover);
}

.tp-btn-ok:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.tp-header-icon.sweep { background: #7c3aed; }
/* Shared panel style for bottom-centered sketch tool panels
   (SketchMirrorPanel, SketchTransformPanel) */

.sketch-tool-panel {
  position: absolute;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%);
  background: #12122a;
  border: 1px solid #333366;
  border-radius: 8px;
  padding: 12px 16px;
  min-width: 240px;
  z-index: 200;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  color: #e0e0ff;
  font-family: system-ui, sans-serif;
  font-size: 13px;
}

.sketch-tool-panel__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.sketch-tool-panel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #44aaff;
  display: inline-block;
}

.sketch-tool-panel__title {
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 11px;
  color: #aaaacc;
}

.sketch-tool-panel__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  gap: 8px;
}

.sketch-tool-panel__row--last {
  margin-bottom: 12px;
}

.sketch-tool-panel__input {
  width: 80px;
  background: #1e1e3a;
  border: 1px solid #333366;
  border-radius: 4px;
  color: #e0e0ff;
  padding: 3px 6px;
  font-size: 12px;
}

.sketch-tool-panel__axis-section {
  margin-bottom: 10px;
}

.sketch-tool-panel__axis-label {
  font-size: 11px;
  color: #aaaacc;
  margin-bottom: 6px;
}

.sketch-tool-panel__radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 5px;
  cursor: pointer;
}

.sketch-tool-panel__hint {
  font-size: 11px;
  color: #666688;
  margin-bottom: 8px;
}

.sketch-tool-panel__footer {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.sketch-tool-panel__btn {
  flex: 1;
  padding: 6px 0;
  border-radius: 4px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
  color: #fff;
  background: #333355;
}

.sketch-tool-panel__btn--primary {
  background: #0078d7;
}
/* Shared panel style for construct-axis / construct-point panels
   (ConstructTwoPlanePanel, ConstructThreePlanePanel) */

.construct-panel {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 220px;
  background: var(--color-panel, #1e1e2e);
  border: 1px solid var(--color-border, #444);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--color-text, #cdd6f4);
  font-size: 12px;
  z-index: 50;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.construct-panel__title {
  font-weight: 600;
  margin-bottom: 8px;
}

.construct-panel__hint {
  margin-bottom: 6px;
  opacity: 0.7;
}

.construct-panel__empty {
  opacity: 0.5;
}

.construct-panel__item {
  padding: 4px 8px;
  margin-bottom: 2px;
  border-radius: 4px;
  cursor: pointer;
  background: transparent;
  border: 1px solid transparent;
}

.construct-panel__item--selected {
  background: var(--color-accent, #89b4fa33);
  border-color: var(--color-accent, #89b4fa);
}

.construct-panel__footer {
  margin-top: 8px;
  display: flex;
  gap: 6px;
}

.construct-panel__btn-create {
  flex: 1;
  padding: 4px 0;
  border-radius: 4px;
  border: none;
  font-weight: 600;
  background: #444;
  color: #888;
  cursor: default;
}

.construct-panel__btn-create:not(:disabled) {
  background: var(--color-accent, #89b4fa);
  color: #1e1e2e;
  cursor: pointer;
}

.construct-panel__btn-cancel {
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  background: transparent;
  color: var(--color-text, #cdd6f4);
  border: 1px solid var(--color-border, #444);
}
/* ===== ViewCube Overlay ===== */
.viewcube-wrapper {
  position: absolute;
  top: 4px;
  right: 4px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: auto;
  user-select: none;
}

.viewcube-container {
  position: relative;
}

.viewcube-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  flex: 1;
  text-align: center;
}

/* Navigation rows around the cube */
.vc-nav-row {
  display: flex;
  align-items: center;
  gap: 2px;
}

.vc-nav-top {
  width: 100%;
  justify-content: space-between;
  padding: 0 8px;
  margin-bottom: -2px;
}

.vc-nav-middle {
  display: flex;
  align-items: center;
  gap: 0;
}

.vc-nav-bottom {
  width: 100%;
  justify-content: flex-start;
  padding: 0 8px;
  margin-top: -2px;
  gap: 6px;
}

.vc-nav-col {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.vc-nav-spacer {
  flex: 1;
}

.vc-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 3px;
  background: rgba(128, 128, 128, 0.12);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
}

.vc-nav-btn:hover {
  background: rgba(128, 128, 128, 0.3);
  color: var(--text-primary);
}

.vc-nav-btn:active {
  background: var(--accent-light);
  color: var(--accent);
}
.replace-face-panel {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 260px;
  background: var(--panel-bg, #1e1e2e);
  color: var(--panel-text, #cdd6f4);
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  font-family: inherit;
  font-size: 13px;
  z-index: 50;
  user-select: none;
}

.replace-face-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.replace-face-panel__title {
  font-weight: 600;
  font-size: 14px;
}

.replace-face-panel__close {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  padding: 0;
  line-height: 1;
}

.replace-face-panel__body {
  padding: 12px 14px;
}

.replace-face-panel__step {
  padding: 8px 10px;
  border-radius: 6px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
}

.replace-face-panel__step--last {
  margin-bottom: 16px;
}

.replace-face-panel__step--source-active {
  background: rgba(33, 150, 243, 0.18);
}

.replace-face-panel__step--target-active {
  background: rgba(76, 175, 80, 0.18);
}

.replace-face-panel__step--disabled {
  opacity: 0.45;
}

.replace-face-panel__step-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  display: inline-block;
}

.replace-face-panel__step-dot--source {
  background: #2196f3;
}

.replace-face-panel__step-dot--target {
  background: #4caf50;
}

.replace-face-panel__check--source {
  color: #ff6600;
  flex-shrink: 0;
}

.replace-face-panel__check--target {
  color: #4caf50;
  flex-shrink: 0;
}

.replace-face-panel__footer {
  display: flex;
  gap: 8px;
  padding: 0 14px 12px;
  justify-content: flex-end;
}

.replace-face-panel__btn-cancel {
  padding: 6px 14px;
  border-radius: 5px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: 13px;
}

.replace-face-panel__btn-ok {
  padding: 6px 14px;
  border-radius: 5px;
  border: none;
  background: #2196f3;
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
}

.replace-face-panel__btn-ok:disabled {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.35);
  cursor: not-allowed;
}