/* ===== 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: 5px;
  max-width: calc(100vw - 28px);
  padding: 5px;
  border: 1px solid color-mix(in srgb, #ffffff 58%, var(--border-light));
  border-radius: 15px;
  background:
    radial-gradient(ellipse at 14% 0%, rgba(255, 255, 255, 0.5), transparent 36%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0.08) 48%, rgba(255, 255, 255, 0.14)),
    color-mix(in srgb, var(--bg-primary) 16%, transparent);
  box-shadow:
    0 16px 34px rgba(15, 23, 42, 0.13),
    0 2px 8px rgba(15, 23, 42, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.58),
    inset 0 0 0 1px rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(15px) saturate(1.2);
  -webkit-backdrop-filter: blur(15px) saturate(1.2);
  isolation: isolate;
  overflow: visible;
}

.cc-group {
  position: relative;
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 2px;
  border: 1px solid color-mix(in srgb, var(--border-light) 42%, transparent);
  border-radius: 11px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    color-mix(in srgb, var(--bg-primary) 10%, transparent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.cc-group + .cc-group {
  margin-left: 0;
  padding-left: 2px;
  border-left: 1px solid color-mix(in srgb, var(--border-light) 42%, transparent);
}

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

.cc-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: 1px solid transparent;
  border-radius: 9px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.03)),
    transparent;
  color: color-mix(in srgb, var(--text-secondary) 88%, var(--accent));
  cursor: pointer;
  transition:
    transform 0.16s ease,
    background 0.16s ease,
    border-color 0.16s ease,
    box-shadow 0.16s ease,
    color 0.16s ease,
    opacity 0.16s ease;
}

.cc-btn:hover {
  border-color: color-mix(in srgb, var(--accent) 32%, #ffffff);
  background:
    radial-gradient(circle at 30% 16%, rgba(255, 255, 255, 0.5), transparent 42%),
    color-mix(in srgb, var(--accent) 9%, var(--bg-primary));
  color: var(--text-primary);
  box-shadow:
    0 7px 14px rgba(15, 23, 42, 0.11),
    0 0 0 2px color-mix(in srgb, var(--accent) 8%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.38);
  transform: translateY(-1px);
}

.cc-btn.active {
  border-color: color-mix(in srgb, var(--accent) 58%, #ffffff);
  background:
    radial-gradient(circle at 34% 8%, rgba(255, 255, 255, 0.58), transparent 42%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 18%, rgba(255, 255, 255, 0.22)), color-mix(in srgb, var(--accent) 12%, rgba(255, 255, 255, 0.04))),
    color-mix(in srgb, var(--accent) 11%, transparent);
  color: color-mix(in srgb, var(--accent) 82%, var(--text-primary));
  box-shadow:
    0 0 0 2px color-mix(in srgb, var(--accent) 10%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -1px 0 color-mix(in srgb, var(--accent) 18%, transparent);
}

.cc-btn:active {
  transform: translateY(0) scale(0.98);
  box-shadow: inset 0 2px 5px rgba(15, 23, 42, 0.1);
}

.cc-btn:focus-visible {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 66%, #ffffff);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.cc-btn--secondary {
  opacity: 0.86;
}

.cc-btn--secondary:hover,
.cc-btn--secondary.active {
  opacity: 1;
}

[data-theme="dark"] .cc-btn {
  border-color: color-mix(in srgb, #ffffff 12%, transparent);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015)),
    color-mix(in srgb, var(--bg-primary) 34%, transparent);
  color: color-mix(in srgb, var(--text-secondary) 92%, var(--accent));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 -1px 0 rgba(0, 0, 0, 0.18);
}

[data-theme="dark"] .cc-btn:hover {
  border-color: color-mix(in srgb, var(--accent) 36%, #ffffff 10%);
  background:
    radial-gradient(circle at 30% 12%, rgba(255, 255, 255, 0.09), transparent 42%),
    color-mix(in srgb, var(--accent) 13%, var(--bg-primary));
  color: var(--text-primary);
  box-shadow:
    0 7px 14px rgba(0, 0, 0, 0.22),
    0 0 0 2px color-mix(in srgb, var(--accent) 10%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

[data-theme="dark"] .cc-btn.active {
  border-color: color-mix(in srgb, var(--accent) 48%, #ffffff 8%);
  background:
    radial-gradient(circle at 34% 8%, rgba(255, 255, 255, 0.11), transparent 42%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 24%, transparent), color-mix(in srgb, var(--accent) 13%, transparent)),
    color-mix(in srgb, var(--bg-primary) 42%, transparent);
  color: color-mix(in srgb, var(--accent) 72%, var(--text-primary));
  box-shadow:
    0 0 0 2px color-mix(in srgb, var(--accent) 12%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    inset 0 -1px 0 color-mix(in srgb, var(--accent) 16%, transparent);
}

[data-theme="dark"] .cc-btn:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 54%, #ffffff 10%);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.cc-btn[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 9px);
  z-index: 1300;
  width: max-content;
  max-width: 160px;
  padding: 4px 7px;
  border: 1px solid color-mix(in srgb, #ffffff 52%, var(--border));
  border-radius: 7px;
  background: color-mix(in srgb, var(--bg-primary) 88%, transparent);
  color: var(--text-primary);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.16);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 4px) scale(0.96);
  transition: opacity 0.14s ease, transform 0.14s ease;
  backdrop-filter: blur(10px) saturate(1.12);
  -webkit-backdrop-filter: blur(10px) saturate(1.12);
}

.cc-btn:hover::before,
.cc-btn:focus-visible::before {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

.cc-btn-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 11px;
  padding: 0 2px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 86%, black 14%);
  color: white;
  font-size: 8px;
  font-weight: 800;
  line-height: 11px;
  pointer-events: none;
  box-shadow: 0 0 0 1px color-mix(in srgb, #ffffff 42%, transparent);
}

.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-origin: top center;
  transform: translateX(-50%);
  margin-bottom: 6px;
  background: var(--glass-pane-bg);
  border: 1px solid var(--glass-pane-border);
  border-radius: 13px;
  padding: 8px;
  box-shadow: var(--glass-pane-shadow);
  min-width: 180px;
  z-index: 1200;
  color: var(--text-primary);
  font-family: var(--font-ui-compact);
  font-feature-settings: 'kern' 1, 'liga' 1;
  animation: ccPopoverUnfurl 280ms cubic-bezier(0.16, 1, 0.3, 1) both;
  overflow: hidden;
  backdrop-filter: var(--glass-pane-filter);
  -webkit-backdrop-filter: var(--glass-pane-filter);
}

.cc-divider {
  display: none;
}

.cc-popover::after {
  content: '';
  position: absolute;
  left: 8px;
  right: 8px;
  top: 8px;
  height: 34px;
  border-radius: 8px;
  pointer-events: none;
  background: var(--glass-pane-glint);
  mix-blend-mode: screen;
  opacity: 0.72;
  animation: ccPopoverSheen 340ms ease-out both;
}

.cc-popover > * {
  animation: ccPopoverInkIn 160ms ease-out both;
  animation-delay: 58ms;
}

.cc-popover-anchor--viewports .cc-popover {
  left: auto;
  right: 0;
  transform-origin: top right;
  transform: none;
  padding: 9px;
  background: var(--glass-pane-bg);
}

@keyframes ccPopoverUnfurl {
  0% {
    opacity: 0;
    clip-path: inset(0 0 92% 0 round 10px);
    transform: translateX(-50%) translateY(-5px) scaleY(0.96);
  }
  58% {
    opacity: 1;
    clip-path: inset(0 0 8% 0 round 10px);
    transform: translateX(-50%) translateY(0) scaleY(1.01);
  }
  100% {
    opacity: 1;
    clip-path: inset(0 0 0 0 round 10px);
    transform: translateX(-50%) translateY(0) scaleY(1);
  }
}

.cc-popover-anchor--viewports .cc-popover {
  animation-name: ccPopoverUnfurlRight;
}

@keyframes ccPopoverUnfurlRight {
  0% {
    opacity: 0;
    clip-path: inset(0 0 92% 0 round 10px);
    transform: translateY(-5px) scaleY(0.96);
  }
  58% {
    opacity: 1;
    clip-path: inset(0 0 8% 0 round 10px);
    transform: translateY(0) scaleY(1.01);
  }
  100% {
    opacity: 1;
    clip-path: inset(0 0 0 0 round 10px);
    transform: translateY(0) scaleY(1);
  }
}

@keyframes ccPopoverSheen {
  0% {
    opacity: 0.62;
    transform: translateY(-12px);
  }
  70% {
    opacity: 0.24;
  }
  100% {
    opacity: 0;
    transform: translateY(42px);
  }
}

@keyframes ccPopoverInkIn {
  from {
    opacity: 0;
    transform: translateY(-2px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.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;
  font-family: var(--font-ui-compact);
  font-weight: 570;
  line-height: 1.32;
  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-family: var(--font-ui-compact);
  font-size: 12px;
  font-weight: 560;
  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-family: var(--font-ui-compact);
  font-size: 12px;
  font-weight: 560;
}

.cc-panel {
  display: grid;
  gap: 6px;
  min-width: 184px;
  color: var(--text-primary);
  font-family: var(--font-ui-compact);
  font-size: 12px;
  line-height: 1.32;
}

.cc-panel--display {
  width: 252px;
  max-height: none;
  overflow: visible;
}

.cc-panel--compact {
  width: 208px;
}

.cc-panel--snaps {
  width: 214px;
}

.cc-panel--viewports {
  width: 260px;
}

.cc-panel-title {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 5px 5px 4px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text-primary);
}

.cc-panel-title::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent);
}

.cc-panel-section {
  display: grid;
  gap: 4px;
}

.cc-panel-note {
  padding: 6px 8px;
  border: 1px solid color-mix(in srgb, #f59e0b 28%, transparent);
  border-radius: 7px;
  background: color-mix(in srgb, #f59e0b 10%, var(--bg-primary));
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.25;
}

.cc-panel-section-title {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cc-panel-section-title::after {
  content: none;
}

.cc-panel-divider {
  display: none;
}

.cc-panel-option-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px;
}

.cc-panel-option-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.cc-panel-option {
  min-width: 0;
  min-height: 24px;
  padding: 4px 7px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.15;
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease, box-shadow 120ms ease, color 120ms ease;
}

.cc-panel-option:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--bg-hover);
}

.cc-panel-option.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 28%, transparent);
}

.cc-panel-option:focus-visible,
.cc-panel-select:focus-visible,
.cc-panel-number:focus-visible,
.cc-panel-range:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 1px;
}

.cc-panel-check {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 20px;
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
  border-radius: 5px;
}

.cc-panel-check:hover {
  color: var(--accent);
}

.cc-panel-check input[type='checkbox'] {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--accent);
  flex: 0 0 auto;
}

.cc-panel-check span {
  min-width: 0;
  line-height: 1.25;
}

.cc-panel-row {
  display: grid;
  grid-template-columns: minmax(92px, 1fr) minmax(0, 1.15fr) auto;
  align-items: center;
  gap: 8px;
  min-height: 24px;
}

.cc-panel-field {
  display: grid;
  grid-template-columns: minmax(72px, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 30px;
}

.cc-panel-field-label {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 800;
}

.cc-panel-field-input-wrap {
  display: inline-grid;
  grid-template-columns: 76px auto;
  align-items: center;
  gap: 5px;
}

.cc-panel-field-input {
  width: 76px;
  height: 26px;
  padding: 3px 8px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-ui-compact);
  font-size: 12px;
  font-weight: 560;
  text-align: right;
}

.cc-panel-field-input:hover:not(:disabled),
.cc-panel-field-input:focus-visible {
  border-color: var(--accent);
}

.cc-panel-field-input:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 1px;
}

.cc-panel-field-input:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.cc-panel-field-unit {
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
}

.cc-panel-label {
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 800;
}

.cc-panel-select,
.cc-panel-number {
  min-width: 0;
  height: 24px;
  padding: 3px 7px;
  border: 1px solid var(--border-light);
  border-radius: 6px;
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-ui-compact);
  font-size: 12px;
  font-weight: 560;
}

.cc-panel-select:hover,
.cc-panel-number:hover {
  border-color: var(--accent);
}

.cc-panel-number {
  width: 72px;
  text-align: right;
}

.cc-panel-range {
  width: 100%;
  min-width: 72px;
  accent-color: var(--accent);
}

.cc-panel-value {
  min-width: 26px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 800;
  text-align: right;
}

.cc-panel-check--master {
  min-height: 28px;
  padding: 3px 6px;
  border: 1px solid var(--border-light);
  background: color-mix(in srgb, var(--accent) 7%, var(--bg-input));
}

.cc-panel-snap-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px;
}

.cc-panel-snap {
  display: grid;
  grid-template-columns: 14px 8px minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  min-height: 26px;
  padding: 4px 6px;
  border: 1px solid var(--border-light);
  border-radius: 7px;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease, color 120ms ease, opacity 120ms ease;
}

.cc-panel-snap:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--bg-hover);
}

.cc-panel-snap.is-disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.cc-panel-snap input[type='checkbox'] {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--accent);
}

.cc-panel-snap-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  box-shadow: 0 0 0 2px color-mix(in srgb, currentColor 12%, transparent);
}

.cc-viewport-layout-grid {
  display: grid;
  gap: 7px;
}

.cc-viewport-layout-option {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  min-height: 50px;
  overflow: hidden;
  padding: 7px 8px;
  border: 1px solid color-mix(in srgb, #ffffff 34%, var(--border-light));
  border-radius: 10px;
  background:
    radial-gradient(circle at 18% 0%, rgba(255, 255, 255, 0.28), transparent 38%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.03)),
    color-mix(in srgb, var(--bg-input) 72%, transparent);
  color: var(--text-secondary);
  text-align: left;
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.24),
    0 2px 7px rgba(15, 23, 42, 0.06);
  transition:
    background 140ms ease,
    border-color 140ms ease,
    box-shadow 140ms ease,
    color 140ms ease,
    transform 140ms ease;
}

.cc-viewport-layout-option::after {
  content: '';
  position: absolute;
  left: 8px;
  right: 8px;
  top: 4px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.32), transparent);
  opacity: 0.62;
  pointer-events: none;
}

.cc-viewport-layout-option:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--accent) 72%, var(--border-light));
  background:
    radial-gradient(circle at 18% 0%, rgba(255, 255, 255, 0.38), transparent 40%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.05)),
    color-mix(in srgb, var(--accent) 8%, var(--bg-input));
  color: var(--text-primary);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.32),
    0 8px 18px rgba(15, 23, 42, 0.1);
}

.cc-viewport-layout-option.active {
  border-color: var(--accent);
  background:
    radial-gradient(circle at 18% 0%, rgba(255, 255, 255, 0.44), transparent 40%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 14%, rgba(255, 255, 255, 0.18)), color-mix(in srgb, var(--accent) 10%, rgba(255, 255, 255, 0.04))),
    color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--accent) 28%, transparent),
    0 8px 20px color-mix(in srgb, var(--accent) 14%, transparent);
}

.cc-viewport-layout-option:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  outline-offset: 1px;
}

.cc-viewport-layout-preview {
  display: grid;
  width: 38px;
  height: 28px;
  gap: 2px;
  padding: 3px;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, #ffffff);
  border-radius: 8px;
  background:
    radial-gradient(circle at 28% 0%, rgba(255, 255, 255, 0.34), transparent 44%),
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 68%),
    color-mix(in srgb, var(--bg-primary) 64%, transparent);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.24),
    0 2px 7px rgba(15, 23, 42, 0.06);
}

.cc-viewport-layout-preview span {
  min-width: 0;
  min-height: 0;
  border: 1px solid color-mix(in srgb, var(--accent) 38%, transparent);
  border-radius: 2px;
  background: color-mix(in srgb, var(--accent) 16%, var(--bg-input));
}

.cc-viewport-layout-preview--1 {
  grid-template: 1fr / 1fr;
}

.cc-viewport-layout-preview--1 span:not(:first-child) {
  display: none;
}

.cc-viewport-layout-preview--2h {
  grid-template: 1fr / 1fr 1fr;
}

.cc-viewport-layout-preview--2h span:nth-child(n + 3) {
  display: none;
}

.cc-viewport-layout-preview--2v {
  grid-template: 1fr 1fr / 1fr;
}

.cc-viewport-layout-preview--2v span:nth-child(n + 3) {
  display: none;
}

.cc-viewport-layout-preview--4 {
  grid-template: 1fr 1fr / 1fr 1fr;
}

.cc-viewport-layout-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.cc-viewport-layout-label {
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.15;
}

.cc-viewport-layout-hint {
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 650;
  line-height: 1.25;
}

.cc-viewport-layout-option.active .cc-viewport-layout-label,
.cc-viewport-layout-option.active .cc-viewport-layout-hint {
  color: var(--accent);
}

@media (max-width: 980px) {
  .canvas-controls-bar {
    right: 6px;
    bottom: 6px;
    gap: 4px;
    padding: 4px;
  }

  .cc-group {
    gap: 2px;
    padding: 1px;
  }

  .cc-btn {
    width: 26px;
    height: 26px;
    border-radius: 8px;
  }
}

@media (max-width: 760px) {
  .canvas-controls-bar {
    max-width: calc(100vw - 14px);
    border-radius: 13px;
  }

  .cc-btn--optional {
    display: none;
  }
}

@media (max-width: 620px) {
  .canvas-controls-bar {
    transform: scale(0.92);
    transform-origin: bottom right;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cc-btn,
  .cc-btn[data-tooltip]::before,
  .cc-popover,
  .cc-popover::after,
  .cc-popover > * {
    animation: none;
  }
}

/* ===== Sketch Palette (Fusion 360 style floating panel) ===== */
.sketch-palette {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1000;
  width: 240px;
  background: var(--glass-pane-bg);
  border: 1px solid var(--glass-pane-border);
  border-radius: 12px;
  box-shadow: var(--glass-pane-shadow);
  backdrop-filter: var(--glass-pane-filter);
  -webkit-backdrop-filter: var(--glass-pane-filter);
  font-family: var(--font-ui-compact);
  font-size: 12px;
  line-height: 1.34;
  overflow: hidden;
  isolation: isolate;
  pointer-events: auto;
}

.sketch-palette::before {
  content: '';
  position: absolute;
  inset: 1px;
  z-index: -1;
  border-radius: inherit;
  background: var(--glass-pane-shine);
  opacity: 0.86;
  pointer-events: none;
}

.sketch-palette::after {
  content: '';
  position: absolute;
  left: 10px;
  right: 10px;
  top: 7px;
  height: 22px;
  border-radius: 999px;
  background: var(--glass-pane-glint);
  filter: blur(0.2px);
  opacity: 0.48;
  pointer-events: none;
}

.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:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent),
    color-mix(in srgb, var(--bg-toolbar) 26%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border-light) 54%, transparent);
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.sketch-palette.is-dragging .sketch-palette-header {
  cursor: grabbing;
}

.sketch-palette.is-dragging {
  will-change: transform;
}

.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:
    radial-gradient(circle at 30% 12%, rgba(255, 255, 255, 0.16), transparent 42%),
    var(--bg-hover);
  color: var(--text-primary);
}

.sketch-palette-body {
  padding: 4px 0;
  background: color-mix(in srgb, var(--bg-primary) 8%, transparent);
}

.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 color-mix(in srgb, var(--border-light) 54%, transparent);
  margin-top: 4px;
  background:
    linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.06)),
    color-mix(in srgb, var(--bg-toolbar) 16%, transparent);
}

.sketch-palette-finish {
  width: 100%;
  padding: 6px 12px;
  border: 1px solid color-mix(in srgb, var(--border) 74%, transparent);
  border-radius: 4px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent),
    color-mix(in srgb, var(--bg-input) 72%, transparent);
  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 color-mix(in srgb, var(--border-light) 78%, transparent);
  border-radius: 4px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent),
    color-mix(in srgb, var(--bg-input) 76%, transparent);
  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(--glass-pane-bg);
  border: 1px solid var(--glass-pane-border);
  border-radius: 8px;
  box-shadow: var(--glass-pane-shadow);
  font-family: var(--font-ui-compact);
  font-size: 12px;
  line-height: 1.34;
  font-feature-settings: 'kern' 1, 'liga' 1;
  overflow: hidden;
  backdrop-filter: var(--glass-pane-filter);
  -webkit-backdrop-filter: var(--glass-pane-filter);
}
.design-configurations-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  right: auto;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 48px);
  transform: translate(-50%, -50%);
  border-color: color-mix(in srgb, var(--accent) 34%, var(--border));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent) 14%, transparent),
    0 12px 36px rgba(0, 0, 0, 0.22),
    0 2px 10px rgba(0, 0, 0, 0.12);
}
.design-configurations-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
}
.design-configurations-overlay .design-configurations-panel {
  pointer-events: auto;
}
.design-configurations-panel .tp-header {
  border-bottom-color: color-mix(in srgb, var(--accent) 24%, var(--border-light));
  cursor: grab;
  touch-action: none;
}
.design-configurations-panel.is-dragging,
.design-configurations-panel.is-dragging .tp-header {
  cursor: grabbing;
}
[data-theme="dark"] .design-configurations-panel {
  border-color: color-mix(in srgb, var(--accent) 52%, rgba(255, 255, 255, 0.2));
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 24px rgba(112, 144, 255, 0.18),
    0 18px 48px rgba(0, 0, 0, 0.58);
}
[data-theme="dark"] .design-configurations-panel .tp-header {
  background: color-mix(in srgb, var(--bg-toolbar) 84%, #ffffff 7%);
  border-bottom-color: color-mix(in srgb, var(--accent) 42%, rgba(255, 255, 255, 0.16));
}
/* ── 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;
}
/* Draggable tool-panel variant */
.tool-panel.is-dragging {
  cursor: grabbing;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28), 0 4px 12px rgba(0, 0, 0, 0.14);
}
.tool-panel--sidecar {
  right: 264px;
  top: 50%;
  transform: translateY(-50%);
}
@media (max-width: 820px) {
  .tool-panel--sidecar {
    right: 12px;
    top: 92px;
    transform: 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: 0.035em;
  line-height: 1.2;
  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: 620;
  line-height: 1.22;
  white-space: nowrap;
  min-width: 60px;
}
.tp-muted-value {
  flex: 1;
  min-width: 0;
  color: var(--text-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}
/* ── 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-family: var(--font-ui-compact);
  font-size: 11px;
  font-weight: 560;
  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-family: var(--font-ui-compact);
  font-size: 11px;
  font-weight: 560;
  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(--glass-pane-bg);
  border: 1px solid var(--glass-pane-border);
  border-radius: 8px;
  box-shadow: var(--glass-pane-shadow);
  font-family: var(--font-ui-compact);
  font-size: 12px;
  line-height: 1.34;
  font-feature-settings: 'kern' 1, 'liga' 1;
  overflow: hidden;
  backdrop-filter: var(--glass-pane-filter);
  -webkit-backdrop-filter: var(--glass-pane-filter);
}

.design-configurations-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  right: auto;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 48px);
  transform: translate(-50%, -50%);
  border-color: color-mix(in srgb, var(--accent) 34%, var(--border));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent) 14%, transparent),
    0 12px 36px rgba(0, 0, 0, 0.22),
    0 2px 10px rgba(0, 0, 0, 0.12);
}

.design-configurations-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
}

.design-configurations-overlay .design-configurations-panel {
  pointer-events: auto;
}

.design-configurations-panel .tp-header {
  border-bottom-color: color-mix(in srgb, var(--accent) 24%, var(--border-light));
  cursor: grab;
  touch-action: none;
}

.design-configurations-panel.is-dragging,
.design-configurations-panel.is-dragging .tp-header {
  cursor: grabbing;
}

[data-theme="dark"] .design-configurations-panel {
  border-color: color-mix(in srgb, var(--accent) 52%, rgba(255, 255, 255, 0.2));
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 24px rgba(112, 144, 255, 0.18),
    0 18px 48px rgba(0, 0, 0, 0.58);
}

[data-theme="dark"] .design-configurations-panel .tp-header {
  background: color-mix(in srgb, var(--bg-toolbar) 84%, #ffffff 7%);
  border-bottom-color: color-mix(in srgb, var(--accent) 42%, rgba(255, 255, 255, 0.16));
}

/* ── 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;
}

/* Draggable tool-panel variant */

.tool-panel.is-dragging {
  cursor: grabbing;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28), 0 4px 12px rgba(0, 0, 0, 0.14);
}

.tool-panel--sidecar {
  right: 264px;
  top: 50%;
  transform: translateY(-50%);
}

@media (max-width: 820px) {
  .tool-panel--sidecar {
    right: 12px;
    top: 92px;
    transform: 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: 0.035em;
  line-height: 1.2;
  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: 620;
  line-height: 1.22;
  white-space: nowrap;
  min-width: 60px;
}

.tp-muted-value {
  flex: 1;
  min-width: 0;
  color: var(--text-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* ── 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-family: var(--font-ui-compact);
  font-size: 11px;
  font-weight: 560;
  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-family: var(--font-ui-compact);
  font-size: 11px;
  font-weight: 560;
  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(--glass-pane-bg);
  border: 1px solid var(--glass-pane-border);
  border-radius: 8px;
  box-shadow: var(--glass-pane-shadow);
  font-family: var(--font-ui-compact);
  font-size: 12px;
  line-height: 1.34;
  font-feature-settings: 'kern' 1, 'liga' 1;
  overflow: hidden;
  backdrop-filter: var(--glass-pane-filter);
  -webkit-backdrop-filter: var(--glass-pane-filter);
}

.design-configurations-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  right: auto;
  z-index: 1001;
  display: flex;
  flex-direction: column;
  max-height: calc(100vh - 48px);
  transform: translate(-50%, -50%);
  border-color: color-mix(in srgb, var(--accent) 34%, var(--border));
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent) 14%, transparent),
    0 12px 36px rgba(0, 0, 0, 0.22),
    0 2px 10px rgba(0, 0, 0, 0.12);
}

.design-configurations-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
}

.design-configurations-overlay .design-configurations-panel {
  pointer-events: auto;
}

.design-configurations-panel .tp-header {
  border-bottom-color: color-mix(in srgb, var(--accent) 24%, var(--border-light));
  cursor: grab;
  touch-action: none;
}

.design-configurations-panel.is-dragging,
.design-configurations-panel.is-dragging .tp-header {
  cursor: grabbing;
}

[data-theme="dark"] .design-configurations-panel {
  border-color: color-mix(in srgb, var(--accent) 52%, rgba(255, 255, 255, 0.2));
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 24px rgba(112, 144, 255, 0.18),
    0 18px 48px rgba(0, 0, 0, 0.58);
}

[data-theme="dark"] .design-configurations-panel .tp-header {
  background: color-mix(in srgb, var(--bg-toolbar) 84%, #ffffff 7%);
  border-bottom-color: color-mix(in srgb, var(--accent) 42%, rgba(255, 255, 255, 0.16));
}

/* ── 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;
}

/* Draggable tool-panel variant */

.tool-panel.is-dragging {
  cursor: grabbing;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28), 0 4px 12px rgba(0, 0, 0, 0.14);
}

.tool-panel--sidecar {
  right: 264px;
  top: 50%;
  transform: translateY(-50%);
}

@media (max-width: 820px) {
  .tool-panel--sidecar {
    right: 12px;
    top: 92px;
    transform: 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: 0.035em;
  line-height: 1.2;
  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: 620;
  line-height: 1.22;
  white-space: nowrap;
  min-width: 60px;
}

.tp-muted-value {
  flex: 1;
  min-width: 0;
  color: var(--text-muted);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

/* ── 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-family: var(--font-ui-compact);
  font-size: 11px;
  font-weight: 560;
  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-family: var(--font-ui-compact);
  font-size: 11px;
  font-weight: 560;
  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; }

/* Fusion-style selection field: cursor icon + dropdown + count + clear */

.sweep-select-field {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.sweep-select-cursor {
  flex: 0 0 auto;
  color: var(--text-muted, #8a8f98);
}

.sweep-select-input {
  flex: 1;
  min-width: 0;
}

.sweep-select-count {
  flex: 0 0 auto;
  font-size: 10px;
  color: var(--accent, #4a9eff);
  white-space: nowrap;
}

/* Active selection input — the in-canvas picker fills this row */

.sweep-row-active {
  box-shadow: inset 2px 0 0 var(--accent, #4a9eff);
  background: rgba(74, 158, 255, 0.08);
  border-radius: 3px;
}
/* Shared panel style for bottom-centered sketch tool panels
   (SketchMirrorPanel, SketchTransformPanel) */

.sketch-tool-panel {
  position: absolute;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--glass-pane-bg);
  border: 1px solid var(--glass-pane-border);
  border-radius: 12px;
  padding: 12px 16px;
  min-width: 240px;
  z-index: 1000;
  box-shadow: var(--glass-pane-shadow);
  backdrop-filter: var(--glass-pane-filter);
  -webkit-backdrop-filter: var(--glass-pane-filter);
  color: var(--text-primary, #111827);
  font-family: var(--font-ui-compact);
  font-size: 13px;
  isolation: isolate;
  pointer-events: auto;
  overflow: hidden;
}

.sketch-tool-panel::before {
  content: '';
  position: absolute;
  inset: 1px;
  z-index: -1;
  border-radius: inherit;
  background: var(--glass-pane-shine);
  opacity: 0.86;
  pointer-events: none;
}

.sketch-tool-panel::after {
  content: '';
  position: absolute;
  left: 10px;
  right: 10px;
  top: 7px;
  height: 22px;
  border-radius: 999px;
  background: var(--glass-pane-glint);
  filter: blur(0.2px);
  opacity: 0.48;
  pointer-events: none;
}

.sketch-tool-panel__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.sketch-tool-panel.is-dragging .sketch-tool-panel__header {
  cursor: grabbing;
}

.sketch-tool-panel.is-dragging {
  will-change: transform;
}

.sketch-tool-panel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent, #0ea5e9);
  display: inline-block;
}

.sketch-tool-panel__grip {
  color: var(--text-secondary, #64748b);
  font-weight: 700;
  line-height: 1;
}

.sketch-tool-panel__title {
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 11px;
  color: var(--text-secondary, #64748b);
}

.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:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent),
    color-mix(in srgb, var(--bg-input, var(--bg-primary, #ffffff)) 76%, transparent);
  border: 1px solid color-mix(in srgb, var(--border-light, rgba(100, 116, 139, 0.35)) 78%, transparent);
  border-radius: 4px;
  color: var(--text-primary, #111827);
  padding: 3px 6px;
  font-size: 12px;
}

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

.sketch-tool-panel__axis-label {
  font-size: 11px;
  color: var(--text-secondary, #64748b);
  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: var(--text-secondary, #64748b);
  margin-bottom: 8px;
}

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

.sketch-tool-panel__btn {
  padding: 6px 12px;
  border-radius: 4px;
  border: 1px solid var(--border-light, rgba(100, 116, 139, 0.35));
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
  color: var(--text-primary, #111827);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent),
    color-mix(in srgb, var(--bg-secondary, #f8fafc) 72%, transparent);
  transition: background 140ms ease, border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.sketch-tool-panel__btn:hover:not(:disabled) {
  background: var(--bg-hover, #eef2f7);
  transform: translateY(-1px);
}

.sketch-tool-panel__btn--primary {
  background: var(--accent, #2563eb);
  border-color: color-mix(in srgb, var(--accent, #2563eb) 70%, transparent);
  color: #fff;
}

.sketch-tool-panel__btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

.sketch-mirror-palette {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 252px;
  right: auto;
  z-index: 1001;
}

.sketch-mirror-palette__body {
  display: grid;
  gap: 8px;
  padding: 8px 10px 4px;
}

.sketch-mirror-palette__row {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 8px;
  min-height: 28px;
}

.sketch-mirror-palette__collector {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-height: 28px;
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-light, rgba(100, 116, 139, 0.4));
  color: var(--text-primary, #111827);
  background: var(--bg-input, var(--bg-primary, #ffffff));
  font-size: 12px;
  cursor: pointer;
  transition: border-color 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.sketch-mirror-palette__collector:hover,
.sketch-mirror-palette__collector.is-active {
  border-color: var(--accent, #2563eb);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent, #2563eb) 18%, transparent);
  background: var(--accent-light, color-mix(in srgb, var(--accent, #2563eb) 10%, var(--bg-primary, #ffffff)));
}

.sketch-mirror-palette__clear {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: 0;
  border-radius: 4px;
  color: var(--text-secondary, #64748b);
  background: transparent;
  cursor: pointer;
}

.sketch-mirror-palette__clear:hover:not(:disabled) {
  color: var(--danger, #dc2626);
  background: color-mix(in srgb, var(--danger, #dc2626) 10%, transparent);
}

.sketch-mirror-palette__clear:disabled {
  cursor: default;
  opacity: 0.35;
}

.sketch-mirror-palette__hint {
  min-height: 16px;
  padding: 2px 0 0;
}

.sketch-mirror-palette__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.sketch-mirror-palette__info {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  margin-right: auto;
  border-radius: 50%;
  color: var(--bg-primary, #ffffff);
  background: var(--text-secondary, #64748b);
  font-size: 10px;
  font-weight: 700;
}

.sketch-mirror-palette__button {
  min-width: 64px;
  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-mirror-palette__button:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--accent);
}

.sketch-mirror-palette__button--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.sketch-mirror-palette__button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}
/* 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: 10px;
  right: 10px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: auto;
  user-select: none;
  isolation: isolate;
  min-width: 190px;
  padding: 9px 10px 10px;
  border: 1px solid color-mix(in srgb, #ffffff 62%, var(--border));
  border-radius: 18px;
  background:
    radial-gradient(ellipse at 18% 8%, rgba(255, 255, 255, 0.72), transparent 34%),
    radial-gradient(ellipse at 76% 20%, rgba(255, 255, 255, 0.24), transparent 28%),
    radial-gradient(circle at 72% 84%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 40%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.36), rgba(255, 255, 255, 0.08) 42%, rgba(255, 255, 255, 0.02) 62%, rgba(255, 255, 255, 0.14)),
    color-mix(in srgb, var(--bg-primary) 10%, transparent);
  box-shadow:
    0 16px 32px rgba(15, 23, 42, 0.11),
    0 2px 8px rgba(15, 23, 42, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    inset 0 0 0 1px rgba(255, 255, 255, 0.18),
    inset 0 -18px 34px rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(16px) saturate(1.24);
  -webkit-backdrop-filter: blur(16px) saturate(1.24);
  transition: transform 0.16s ease, box-shadow 0.16s ease, opacity 0.16s ease, border-color 0.16s ease;
}

.viewcube-wrapper::before {
  content: '';
  position: absolute;
  inset: 1px;
  z-index: -1;
  border-radius: 17px;
  background:
    linear-gradient(108deg, transparent 0 21%, rgba(255, 255, 255, 0.34) 32%, transparent 46% 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.16), transparent 16%, transparent 84%, rgba(255, 255, 255, 0.1)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.2), transparent 34%, rgba(255, 255, 255, 0.08));
  opacity: 0.92;
  pointer-events: none;
}

.viewcube-wrapper::after {
  content: '';
  position: absolute;
  inset: 8px 14px auto;
  height: 26px;
  border-radius: 999px;
  background:
    radial-gradient(ellipse at 28% 0%, rgba(255, 255, 255, 0.62), transparent 58%),
    linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.52), transparent);
  filter: blur(0.2px);
  opacity: 0.78;
  pointer-events: none;
}

[data-theme="dark"] .viewcube-wrapper {
  border-color: color-mix(in srgb, #ffffff 24%, var(--border));
  background:
    radial-gradient(ellipse at 18% 8%, rgba(255, 255, 255, 0.13), transparent 34%),
    radial-gradient(ellipse at 76% 20%, rgba(255, 255, 255, 0.055), transparent 32%),
    radial-gradient(circle at 72% 84%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 44%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.024) 42%, rgba(255, 255, 255, 0.01) 62%, rgba(255, 255, 255, 0.035)),
    color-mix(in srgb, var(--bg-primary) 54%, transparent);
  box-shadow:
    0 18px 42px rgba(0, 0, 0, 0.42),
    0 3px 12px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(255, 255, 255, 0.035),
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 0 0 1px rgba(255, 255, 255, 0.045),
    inset 0 -18px 34px rgba(255, 255, 255, 0.016);
  backdrop-filter: blur(18px) saturate(1.28);
  -webkit-backdrop-filter: blur(18px) saturate(1.28);
}

[data-theme="dark"] .viewcube-wrapper::before {
  background:
    linear-gradient(108deg, transparent 0 24%, rgba(255, 255, 255, 0.075) 34%, transparent 48% 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035), transparent 16%, transparent 84%, rgba(255, 255, 255, 0.025)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.052), transparent 38%, rgba(255, 255, 255, 0.02));
  opacity: 0.78;
}

[data-theme="dark"] .viewcube-wrapper::after {
  background:
    radial-gradient(ellipse at 28% 0%, rgba(255, 255, 255, 0.13), transparent 60%),
    linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.085), transparent);
  opacity: 0.48;
}

.viewcube-wrapper:hover,
.viewcube-wrapper.is-dragging {
  border-color: color-mix(in srgb, var(--accent) 22%, #ffffff);
  box-shadow:
    0 20px 40px rgba(15, 23, 42, 0.16),
    0 4px 12px rgba(15, 23, 42, 0.07),
    0 0 0 1px color-mix(in srgb, var(--accent) 8%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.62),
    inset 0 -1px 0 rgba(255, 255, 255, 0.16);
}

.viewcube-wrapper.is-dragging {
  cursor: grabbing;
  transform: translateY(1px);
}

.viewcube-container {
  position: relative;
  width: 140px;
  height: 140px;
  border-radius: 10px;
  background: transparent;
  cursor: grab;
}

.viewcube-container:active {
  cursor: grabbing;
}

.viewcube-container[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 6px);
  z-index: 12;
  width: max-content;
  max-width: 180px;
  padding: 5px 8px;
  border: 1px solid color-mix(in srgb, #ffffff 52%, var(--border));
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg-primary) 82%, transparent);
  color: var(--text-primary);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.16);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 4px) scale(0.96);
  transition: opacity 0.14s ease, transform 0.14s ease;
  backdrop-filter: blur(10px) saturate(1.12);
  -webkit-backdrop-filter: blur(10px) saturate(1.12);
}

.viewcube-container:hover::before {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

.viewcube-glow {
  position: absolute;
  inset: 24px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 24%, transparent), transparent 68%);
  filter: blur(12px);
  opacity: 0.6;
  pointer-events: none;
}

.viewcube-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  flex: 1;
  text-align: center;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.14s ease, letter-spacing 0.14s ease;
}

.viewcube-label.is-preview {
  color: color-mix(in srgb, var(--accent) 80%, var(--text-primary));
  letter-spacing: 0.7px;
}

/* Navigation rows around the cube */
.vc-nav-row {
  display: flex;
  align-items: center;
  gap: 3px;
}

.vc-nav-top {
  width: 100%;
  justify-content: space-between;
  padding: 0 8px;
  margin-bottom: 1px;
}

.vc-nav-cluster {
  display: flex;
  gap: 4px;
}

.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: 3px;
}

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

.vc-nav-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 8px;
  background:
    radial-gradient(circle at 28% 16%, rgba(255, 255, 255, 0.58), transparent 40%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0.12)),
    color-mix(in srgb, var(--bg-primary) 28%, transparent);
  color: color-mix(in srgb, var(--text-secondary) 86%, var(--accent));
  cursor: pointer;
  box-shadow:
    0 3px 8px rgba(15, 23, 42, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.52),
    inset 0 -1px 0 rgba(255, 255, 255, 0.1);
  transition: transform 0.16s ease, background 0.16s ease, border-color 0.16s ease, color 0.16s ease, box-shadow 0.16s ease;
  padding: 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.vc-nav-btn::after {
  content: '';
  position: absolute;
  inset: 2px 3px auto;
  height: 7px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.46), transparent);
  opacity: 0.62;
  pointer-events: none;
}

.vc-nav-btn[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 7px);
  z-index: 20;
  width: max-content;
  max-width: 148px;
  padding: 4px 7px;
  border: 1px solid color-mix(in srgb, #ffffff 50%, var(--border));
  border-radius: 7px;
  background: color-mix(in srgb, var(--bg-primary) 86%, transparent);
  color: var(--text-primary);
  font-size: 10px;
  font-weight: 650;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.16);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 4px) scale(0.96);
  transition: opacity 0.14s ease, transform 0.14s ease;
  backdrop-filter: blur(10px) saturate(1.14);
  -webkit-backdrop-filter: blur(10px) saturate(1.14);
}

.vc-nav-btn:hover::before,
.vc-nav-btn:focus-visible::before {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
}

.vc-nav-btn svg {
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 1px 0 rgba(255, 255, 255, 0.28));
}

.vc-nav-btn:hover {
  border-color: color-mix(in srgb, var(--accent) 48%, #ffffff);
  background:
    radial-gradient(circle at 28% 16%, rgba(255, 255, 255, 0.72), transparent 42%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 18%, rgba(255, 255, 255, 0.54)), color-mix(in srgb, var(--accent) 12%, rgba(255, 255, 255, 0.14))),
    color-mix(in srgb, var(--bg-primary) 24%, transparent);
  color: var(--text-primary);
  box-shadow:
    0 7px 15px rgba(15, 23, 42, 0.12),
    0 0 0 2px color-mix(in srgb, var(--accent) 10%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.68);
  transform: translateY(-1px) scale(1.04);
}

.vc-nav-btn-secondary {
  color: color-mix(in srgb, var(--text-muted) 90%, var(--accent));
  opacity: 0.88;
}

.vc-nav-btn-secondary:hover {
  opacity: 1;
}

[data-theme="dark"] .vc-nav-btn {
  border-color: color-mix(in srgb, #ffffff 14%, transparent);
  background:
    radial-gradient(circle at 28% 14%, rgba(255, 255, 255, 0.09), transparent 40%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.018)),
    color-mix(in srgb, var(--bg-primary) 42%, transparent);
  color: color-mix(in srgb, var(--text-secondary) 90%, var(--accent));
  box-shadow:
    0 4px 10px rgba(0, 0, 0, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.1),
    inset 0 -1px 0 rgba(0, 0, 0, 0.22);
}

[data-theme="dark"] .vc-nav-btn::after {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.095), transparent);
  opacity: 0.42;
}

[data-theme="dark"] .vc-nav-btn svg {
  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.42));
}

[data-theme="dark"] .vc-nav-btn:hover {
  border-color: color-mix(in srgb, var(--accent) 42%, #ffffff 10%);
  background:
    radial-gradient(circle at 28% 14%, rgba(255, 255, 255, 0.12), transparent 42%),
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 23%, transparent), color-mix(in srgb, var(--accent) 11%, transparent)),
    color-mix(in srgb, var(--bg-primary) 48%, transparent);
  color: var(--text-primary);
  box-shadow:
    0 8px 16px rgba(0, 0, 0, 0.24),
    0 0 0 2px color-mix(in srgb, var(--accent) 12%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

.vc-nav-btn:active {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 20%, rgba(255, 255, 255, 0.24)), color-mix(in srgb, var(--accent) 18%, rgba(255, 255, 255, 0.08))),
    color-mix(in srgb, var(--bg-primary) 32%, transparent);
  color: var(--accent);
  box-shadow:
    0 2px 6px rgba(15, 23, 42, 0.09),
    inset 0 2px 4px rgba(15, 23, 42, 0.08);
  transform: translateY(0) scale(0.98);
}

.vc-nav-btn:focus-visible {
  outline: none;
  border-color: color-mix(in srgb, var(--accent) 64%, #ffffff);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.68);
}

[data-theme="dark"] .vc-nav-btn:active {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 18%, transparent), color-mix(in srgb, var(--accent) 12%, transparent)),
    color-mix(in srgb, var(--bg-primary) 54%, transparent);
  color: color-mix(in srgb, var(--accent) 78%, var(--text-primary));
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.24),
    inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .vc-nav-btn:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 54%, #ffffff 10%);
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

.viewcube-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: grid;
  min-width: 178px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-primary);
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.22);
  animation: viewcube-menu-open 0.18s ease both;
}

.viewcube-menu button {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 28px;
  padding: 5px 8px;
  border: none;
  border-radius: 7px;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 12px;
  text-align: left;
}

.viewcube-menu button:hover {
  background: var(--bg-hover);
}

.viewcube-menu button.is-active {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: color-mix(in srgb, var(--accent) 72%, var(--text-primary));
}

.viewcube-menu-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 12px;
  height: 12px;
  border: 1px solid color-mix(in srgb, var(--border) 76%, transparent);
  border-radius: 999px;
}

.viewcube-menu button.is-active .viewcube-menu-check {
  border-color: color-mix(in srgb, var(--accent) 68%, #ffffff);
  background:
    radial-gradient(circle at center, var(--accent) 0 42%, transparent 46%),
    color-mix(in srgb, var(--accent) 12%, transparent);
}

.viewcube-menu span {
  height: 1px;
  margin: 5px 4px;
  background: var(--border-light);
}

@keyframes viewcube-menu-open {
  from {
    opacity: 0;
    transform: translateY(-4px) scaleY(0.96);
    transform-origin: top right;
  }
  to {
    opacity: 1;
    transform: translateY(0) scaleY(1);
    transform-origin: top right;
  }
}

@media (max-width: 820px), (max-height: 650px) {
  .viewcube-wrapper {
    top: 8px;
    right: 8px;
    padding: 5px;
    transform: scale(0.86);
    transform-origin: top right;
  }

  .viewcube-wrapper.is-dragging {
    transform: scale(0.86) translateY(1px);
  }
}
.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__options {
  padding: 0 14px 10px;
}

.replace-face-panel__option-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  color: var(--panel-text, #cdd6f4);
}

.replace-face-panel__option-label input[type='checkbox'] {
  accent-color: #2196f3;
  width: 14px;
  height: 14px;
  cursor: pointer;
}

.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;
}