[
  {
    "id": 1,
    "level": 1,
    "name": "L1: Bounded",
    "description": "A narrow question in a well-defined biological system with established methods and a clear experimental readout.",
    "color_class": "text-green-600 bg-green-50 border-green-200"
  },
  {
    "id": 2,
    "level": 2,
    "name": "L2: Specialized",
    "description": "Requires substantial domain expertise, careful causal design, or multiple complementary experiments, but current techniques are broadly adequate.",
    "color_class": "text-blue-600 bg-blue-50 border-blue-200"
  },
  {
    "id": 3,
    "level": 3,
    "name": "L3: Advanced",
    "description": "Spans multiple methods, contexts, biological scales, or organisms; likely requires a coordinated research programme or several independent studies.",
    "color_class": "text-yellow-600 bg-yellow-50 border-yellow-200"
  },
  {
    "id": 4,
    "level": 4,
    "name": "L4: Field-Defining",
    "description": "Faces major conceptual or technical barriers, scarce biological samples, long timescales, ethical constraints, or cross-scale causal inference challenges.",
    "color_class": "text-red-600 bg-red-50 border-red-200"
  },
  {
    "id": 5,
    "level": 5,
    "name": "L5: Grand Challenge",
    "description": "Requires fundamentally new biological concepts, new measurement technologies, unusually long observation horizons, or international/multigenerational coordination.",
    "color_class": "text-purple-600 bg-purple-50 border-purple-200"
  }
]