{
  "title": "HVAC Tune-Up: instant estimate",
  "subtitle": "Pick a service and adjust the details. Prices update live.",
  "accent": "#c62828",
  "currencyCode": "USD",
  "locale": "en-US",
  "roundTo": 5,
  "items": [
    {
      "id": "tune",
      "label": "System tune-up",
      "unit": "systems",
      "low": 89,
      "high": 149,
      "min": 89,
      "qtyDefault": 1,
      "qtyMin": 1,
      "qtyMax": 4,
      "qtyStep": 1,
      "unitOne": "system"
    }
  ],
  "modifiers": [
    {
      "label": "System type",
      "type": "select",
      "options": [
        {
          "label": "AC only",
          "factor": 1
        },
        {
          "label": "Furnace only",
          "factor": 1
        },
        {
          "label": "Heat pump",
          "factor": 1.15
        }
      ]
    },
    {
      "label": "Maintenance plan (2 visits/yr)",
      "type": "checkbox",
      "factor": 1.6
    }
  ],
  "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"
  }
}