{
    "packages": [
        {
            "id": "pkg_starter",
            "name": "Starter Pack",
            "units": 200,
            "price": 10,
            "description": "The perfect introduction to digital clinical communication."
        },
        {
            "id": "pkg_basic",
            "name": "Basic Pack",
            "units": 1000,
            "price": 50,
            "description": "Perfect for small clinics starting their digital journey."
        },
        {
            "id": "pkg_standard",
            "name": "Standard Pack",
            "units": 2000,
            "price": 100,
            "description": "The most popular choice for busy optical practitioners."
        },
        {
            "id": "pkg_premium",
            "name": "Premium Pack",
            "units": 5000,
            "price": 250,
            "description": "Industrial scale credits for large clinic networks."
        }
    ],
    "base_price_per_unit": 0.05
}