:root {
  --bg-deep: #0d1117;
  --bg-panel: #161b22;
  --bg-card: #1c2128;
  --border-glass: rgba(255,255,255,0.08);
  --text-main: #e6edf3;
  --text-muted: #8b949e;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --danger: #ef4444;
  --success: #10b981;
  --warn: #f59e0b;
  --jig-stroke: #f59e0b;
  --slot-fill: rgba(99,102,241,0.18);
  --slot-stroke: #6366f1;
  --slot-stroke-empty: #4b5563;
}