{
  "title": "Interior Painting: instant estimate",
  "subtitle": "Pick a service and adjust the details. Prices update live.",
  "accent": "#ad1457",
  "currencyCode": "USD",
  "locale": "en-US",
  "roundTo": 5,
  "items": [
    {
      "id": "room",
      "label": "Interior walls",
      "unit": "sq ft of floor",
      "low": 2.0,
      "high": 3.5,
      "min": 400,
      "qtyDefault": 250,
      "qtyMin": 50,
      "qtyMax": 4000,
      "qtyStep": 10
    },
    {
      "id": "ceil",
      "label": "Ceilings",
      "unit": "sq ft",
      "low": 1.0,
      "high": 1.8,
      "min": 250,
      "qtyDefault": 250,
      "qtyMin": 50,
      "qtyMax": 4000,
      "qtyStep": 10
    }
  ],
  "modifiers": [
    {
      "label": "Color change (dark to light)",
      "type": "checkbox",
      "factor": 1.25
    },
    {
      "label": "Trim & doors included",
      "type": "checkbox",
      "factor": 1.3,
      "items": [
        "room"
      ]
    },
    {
      "label": "Wall repair / patching",
      "type": "checkbox",
      "add": 150
    }
  ],
  "note": "Sample prices for demo. Set your own. Final price confirmed after inspection.",
  "cta": {
    "type": "mailto",
    "email": "you@yourbusiness.com",
    "label": "Request my exact quote"
  }
}