input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

#mode-cad .cad-card {
  padding: 18px;
}

.cad-top-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, .8fr);
  gap: 20px;
  align-items: stretch;
}

.cad-top-section {
  min-width: 0;
}

.cad-top-section h2 {
  margin-bottom: 12px;
}

.cad-import-section {
  padding-left: 20px;
  border-left: 1px solid rgba(255,255,255,.07);
}

.cad-import-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 9px;
}

.cad-import-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.cad-file-button,
.cad-export-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  text-align: center;
  line-height: 1.25;
}

.cad-export-button {
  background: rgba(14,165,233,.14);
  border: 1px solid rgba(56,189,248,.36);
  box-shadow: none;
  color: #7dd3fc;
}

.cad-export-button:hover:not(:disabled) {
  background: rgba(14,165,233,.24);
  color: #e0f2fe;
}

.cad-export-button:disabled,
.cad-calculate:disabled {
  opacity: .45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.cad-file-name {
  color: #cbd5e1;
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.cad-import-quality {
  display: grid;
  grid-template-columns: auto minmax(120px, 1fr);
  gap: 6px 10px;
  align-items: center;
  padding: 9px 10px;
  border: 1px solid rgba(96,165,250,.18);
  border-radius: 10px;
  background: rgba(15,23,42,.4);
}

.cad-import-quality label {
  color: #cbd5e1;
  font-size: 12px;
  font-weight: 700;
}

.cad-import-quality select {
  min-width: 0;
  padding: 7px 9px;
  color: #e2e8f0;
  background: rgba(15,23,42,.75);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 8px;
  font: inherit;
  font-size: 12px;
}

.cad-import-quality select:focus {
  outline: none;
  border-color: rgba(96,165,250,.65);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}

.cad-import-quality small {
  grid-column: 1 / -1;
  color: #64748b;
  font-size: 10px;
  line-height: 1.35;
}

.cad-export-note {
  color: #64748b;
  font-size: 10px;
  line-height: 1.4;
}

.cad-status {
  color: #94a3b8;
  font-size: 12px;
}

.cad-status.error { color: #f87171; }
.cad-status.ok { color: #34d399; }

.cad-workspace {
  display: grid;
  grid-template-columns: minmax(560px, 3fr) minmax(290px, .9fr);
  gap: 14px;
  min-height: 650px;
}

.cad-panel,
.cad-viewport-shell {
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 16px;
  background: rgba(15,23,42,.48);
  overflow: hidden;
}

.cad-panel {
  padding: 15px;
}

.cad-panel h3 {
  margin: 0 0 12px;
  color: #93c5fd;
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  letter-spacing: .04em;
}

.cad-parts-head,
.cad-part-row {
  display: grid;
  grid-template-columns: 32px minmax(150px, 1fr) minmax(250px, 1.2fr);
  gap: 10px;
  align-items: center;
}

.cad-parts-head {
  color: #64748b;
  font-size: 10px;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.cad-parts-list {
  max-height: 220px;
  overflow: auto;
  padding-right: 6px;
}

.cad-model-tree-root {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 8px 9px;
  border: 1px solid rgba(96,165,250,.22);
  border-radius: 9px;
  background: rgba(37,99,235,.1);
  color: #dbeafe;
}

.cad-model-tree-root-icon,
.cad-part-tree-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 6px;
  background: rgba(96,165,250,.14);
  color: #60a5fa;
}

.cad-model-tree-root-icon {
  width: 25px;
  height: 25px;
  font-size: 12px;
}

.cad-model-tree-root-name,
.cad-part-name > span:last-child {
  min-width: 0;
}

.cad-model-tree-root-name b,
.cad-model-tree-root-name small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cad-model-tree-root-name b {
  font-size: 11px;
}

.cad-model-tree-root-name small {
  margin-top: 3px;
  color: #64748b;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .06em;
}

.cad-model-tree-children {
  margin: 5px 0 0 13px;
  padding-left: 10px;
  border-left: 1px solid rgba(148,163,184,.26);
}

.cad-part-row {
  padding: 9px 0;
  border-top: 1px solid rgba(255,255,255,.05);
}

.cad-part-row.active {
  border-radius: 8px;
  background: rgba(34,211,238,.08);
  box-shadow: inset 2px 0 0 #22d3ee;
}

.cad-part-name {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
  padding: 4px 5px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: #cbd5e1;
  font-size: 11px;
  text-align: left;
  cursor: pointer;
}

.cad-part-name:hover,
.cad-part-name.active {
  border-color: rgba(34,211,238,.36);
  background: rgba(34,211,238,.1);
  color: #ecfeff;
}

.cad-part-tree-icon {
  width: 21px;
  height: 21px;
  color: #67e8f9;
  font-size: 10px;
}

.cad-part-name b,
.cad-part-name small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cad-part-name small {
  color: #64748b;
  margin-top: 3px;
}

.cad-part-material {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(75px, 100px) auto;
  gap: 7px;
  align-items: center;
}

.cad-part-material select,
.cad-part-material input,
.cad-vector input {
  width: 100%;
  min-width: 0;
  padding: 7px 8px;
  color: #fff;
  background: rgba(2,6,23,.65);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  font: inherit;
  font-size: 11px;
}

.cad-density-unit {
  color: #64748b;
  font-size: 10px;
  white-space: nowrap;
}

.cad-empty {
  color: #64748b;
  text-align: center;
  font-size: 12px;
  padding: 34px 12px;
}

.cad-viewport-shell {
  position: relative;
  min-height: 650px;
}

#cad-viewport {
  position: absolute;
  inset: 0;
}

#cad-viewport canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.cad-grid-toggle {
  position: absolute;
  z-index: 3;
  top: 12px;
  right: 12px;
  min-width: 88px;
  padding: 7px 11px;
  border: 1px solid rgba(148,163,184,.28);
  border-radius: 9px;
  background: rgba(2,6,23,.78);
  color: #94a3b8;
  font: 700 10px 'Outfit', sans-serif;
  letter-spacing: .04em;
  cursor: pointer;
}

.cad-grid-toggle:hover {
  border-color: rgba(96,165,250,.55);
  color: #e2e8f0;
}

.cad-grid-toggle.is-active {
  border-color: rgba(34,211,238,.62);
  background: rgba(8,145,178,.18);
  color: #67e8f9;
}

.cad-outline-toggle {
  position: absolute;
  z-index: 3;
  top: 52px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 88px;
  padding: 7px 11px;
  border: 1px solid rgba(148,163,184,.28);
  border-radius: 9px;
  background: rgba(2,6,23,.78);
  color: #94a3b8;
  font: 700 10px 'Outfit', sans-serif;
  letter-spacing: .04em;
  cursor: pointer;
}

.cad-outline-toggle:hover {
  border-color: rgba(96,165,250,.55);
  color: #e2e8f0;
}

.cad-outline-toggle.is-active {
  border-color: rgba(96,165,250,.62);
  background: rgba(37,99,235,.18);
  color: #bfdbfe;
}

.cad-marker-legend {
  position: absolute;
  z-index: 3;
  top: 12px;
  left: 12px;
  display: flex;
  gap: 12px;
  padding: 7px 9px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  background: rgba(2,6,23,.78);
  color: #94a3b8;
  font-size: 9px;
  pointer-events: none;
}

.cad-marker-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cad-marker-legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  box-sizing: border-box;
}

.cad-legend-tcp {
  border: 2px solid #22d3ee;
  transform: rotate(45deg);
}

.cad-legend-cog {
  border: 2px solid #111827;
  border-radius: 50%;
  background: #facc15;
}

.cad-viewport-hint {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 2;
  border-radius: 9px;
  padding: 8px 10px;
  background: rgba(2,6,23,.76);
  color: #94a3b8;
  font-size: 10px;
  pointer-events: none;
}

.cad-snap-marker {
  --cad-snap-camera-scale: 1;
  position: absolute;
  z-index: 4;
  display: block;
  width: 14px;
  height: 14px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  color: #f59e0b;
  filter: drop-shadow(0 0 2px rgba(0,0,0,.9));
}

.cad-snap-marker[hidden] { display: none; }

.cad-snap-candidate-marker {
  z-index: 3;
}

.cad-snap-candidate-marker > span {
  opacity: .82;
}

.cad-snap-marker > span {
  position: absolute;
  inset: 0;
  z-index: 2;
  box-sizing: border-box;
  width: 14px;
  height: 14px;
  overflow: hidden;
  border: 1.25px solid currentColor;
  border-radius: 1px;
  background: transparent;
  font-size: 0;
  transform: scale(var(--cad-snap-camera-scale));
  transform-origin: center;
}

.cad-snap-marker[data-snap-type="endpoint"] > span {
  background: radial-gradient(circle at center, currentColor 0 1.25px, transparent 1.75px);
}

.cad-snap-marker[data-snap-type="edge-midpoint"] > span,
.cad-snap-marker[data-snap-type="virtual-intersection"] > span {
  transform: rotate(45deg) scale(calc(var(--cad-snap-camera-scale) * .78));
}

.cad-snap-marker[data-snap-type="face-center"] > span,
.cad-snap-marker[data-snap-type="circle-center"] > span,
.cad-snap-marker[data-snap-type="shape-center"] > span {
  border-radius: 50%;
}

.cad-snap-marker[data-snap-type="rectangle-center"] > span {
  border-radius: 2px;
  background: radial-gradient(circle at center, currentColor 0 1.25px, transparent 1.75px);
}

.cad-snap-marker b {
  position: absolute;
  left: 18px;
  top: 50%;
  padding: 4px 7px;
  border: 1px solid rgba(251,191,36,.35);
  border-radius: 7px;
  background: rgba(2,6,23,.9);
  color: #fde68a;
  font-size: 10px;
  white-space: nowrap;
  transform: translateY(-50%);
}

.cad-snap-marker.label-left b {
  right: 18px;
  left: auto;
}

.cad-snap-marker[data-snap-type="virtual-intersection"] > span,
.cad-snap-marker[data-snap-type="virtual-intersection"] b { color: #f0abfc; }

#cad-viewport.is-picking canvas { cursor: crosshair; }

.cad-snap-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 10px;
  margin-bottom: 8px;
  border: 1px solid rgba(96,165,250,.15);
  border-radius: 10px;
  background: rgba(2,6,23,.34);
}

.cad-snap-controls label {
  min-width: 0;
  color: #94a3b8;
  font-size: 9px;
}

.cad-snap-controls label > span {
  display: flex;
  justify-content: space-between;
  gap: 5px;
  margin-bottom: 5px;
}

.cad-snap-controls select {
  width: 100%;
  min-width: 0;
  padding: 7px 8px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  background: rgba(2,6,23,.65);
  color: #fff;
  font: inherit;
  font-size: 10px;
}

.cad-snap-controls input[type="range"] {
  width: 100%;
  accent-color: #f59e0b;
}

.cad-snap-controls output { color: #fbbf24; }

.cad-snap-readout {
  min-height: 34px;
  padding: 8px 9px;
  border-radius: 8px;
  background: rgba(15,23,42,.62);
  color: #64748b;
  font-size: 9px;
  line-height: 1.45;
}

.cad-multi-center-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 6px;
  margin-top: 7px;
  padding: 7px 8px;
  border: 1px solid rgba(34,211,238,.2);
  border-radius: 8px;
  background: rgba(8,47,73,.28);
}

.cad-multi-center-controls[hidden] { display: none; }

.cad-multi-center-controls span {
  color: #a5f3fc;
  font-size: 9px;
}

.cad-multi-center-controls button {
  padding: 6px 8px;
  border: 1px solid rgba(34,211,238,.35);
  border-radius: 7px;
  background: rgba(8,145,178,.18);
  color: #cffafe;
  font: 700 9px/1 'Noto Sans KR', sans-serif;
  cursor: pointer;
}

.cad-multi-center-controls button:hover:not(:disabled) { background: rgba(8,145,178,.34); }

.cad-multi-center-controls button:disabled {
  opacity: .38;
  cursor: default;
}

.cad-vector-block {
  padding: 11px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}

.cad-vector-block:first-of-type { border-top: 0; }

.cad-vector-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 7px;
  color: #cbd5e1;
  font-size: 11px;
}

.cad-handler-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #93c5fd;
  cursor: pointer;
  font-size: 9px;
  white-space: nowrap;
}

.cad-handler-toggle input {
  accent-color: #2563eb;
}

.cad-pick-button {
  padding: 5px 8px;
  border-radius: 7px;
  border: 1px solid rgba(96,165,250,.28);
  background: rgba(37,99,235,.12);
  color: #93c5fd;
  cursor: pointer;
  font-size: 10px;
}

.cad-pick-button.active {
  border-color: #f59e0b;
  background: rgba(245,158,11,.18);
  color: #fbbf24;
}

.cad-vector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.cad-vector label {
  color: #64748b;
  font-size: 9px;
}

.cad-vector label span { display: block; margin-bottom: 3px; }

.cad-axis-directions {
  display: grid;
  gap: 4px;
  margin-top: 8px;
  padding: 8px;
  border-radius: 8px;
  background: rgba(2,6,23,.38);
}

.cad-axis-directions div {
  display: grid;
  grid-template-columns: 18px 1fr;
  align-items: center;
  color: #64748b;
  font: 9px/1.35 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.cad-axis-directions b { font-family: 'Outfit', sans-serif; }
.cad-axis-directions div:nth-child(1) b { color: #d32f2f; }
.cad-axis-directions div:nth-child(2) b { color: #388e3c; }
.cad-axis-directions div:nth-child(3) b { color: #1976d2; }
.cad-axis-directions output { color: #94a3b8; }

.cad-calculate {
  width: 100%;
  margin-top: 12px;
}

.cad-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.cad-result-section {
  padding: 16px;
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 13px;
  background: rgba(15,23,42,.5);
}

.cad-result-section.wide { grid-column: 1 / -1; }

.cad-result-section h3 {
  margin: 0 0 11px;
  color: #94a3b8;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.cad-result-value {
  color: #fff;
  font: 700 21px 'Outfit', sans-serif;
}

.cad-result-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.cad-result-values div {
  padding: 10px;
  border-radius: 9px;
  background: rgba(2,6,23,.55);
  color: #64748b;
  font-size: 10px;
}

.cad-result-values b {
  display: block;
  margin-top: 4px;
  color: #fff;
  font-size: 14px;
}

.cad-robot-selection {
  margin-bottom: 0;
}

.cad-robot-description {
  margin: -4px 0 16px;
  color: #94a3b8;
  font-size: 12px;
}

.cad-robot-calculate {
  width: 100%;
  margin-top: 12px;
}

.cad-robot-calculate:disabled {
  cursor: not-allowed;
  opacity: .55;
  transform: none;
  box-shadow: none;
}

.cad-robot-result {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.08);
}

.cad-robot-result h3 {
  margin: 0 0 14px;
  color: #94a3b8;
  font-size: 11px;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.cad-robot-result[hidden] { display: none; }

@media (max-width: 980px) {
  .cad-top-grid { grid-template-columns: 1fr; }
  .cad-import-section {
    padding-top: 16px;
    padding-left: 0;
    border-top: 1px solid rgba(255,255,255,.07);
    border-left: 0;
  }
  .cad-workspace { grid-template-columns: 1fr; }
  .cad-viewport-shell { min-height: 560px; order: -1; }
  .cad-parts-list { max-height: 280px; }
}

@media (max-width: 620px) {
  .cad-result-grid { grid-template-columns: 1fr; }
  .cad-result-section.wide { grid-column: auto; }
  .cad-result-values { grid-template-columns: 1fr; }
  .cad-status { width: 100%; margin-left: 0; }
  .cad-snap-controls { grid-template-columns: 1fr; }
  .cad-parts-head { grid-template-columns: 28px 1fr; }
  .cad-parts-head span:last-child { display: none; }
  .cad-part-row { grid-template-columns: 28px 1fr; }
  .cad-part-material {
    grid-column: 2;
    grid-template-columns: minmax(100px, 1fr) 80px auto;
  }
  .cad-import-actions { grid-template-columns: 1fr; }
}