{
  "title": "Mixed Demo — Every Question Type",
  "subtitle": "A tour of every renderer in the platform",
  "timeLimitMinutes": null,
  "feedbackMode": "end",
  "categories": ["Demo"],
  "questions": [
    {
      "id": "q1",
      "type": "multiple-choice",
      "category": "Demo",
      "points": 1,
      "prompt": "Which of the following is the capital of Japan?",
      "image": {
        "src": "https://images.unsplash.com/photo-1540959733332-eab4deabeeaf?w=800",
        "alt": "City skyline",
        "caption": "A city skyline — can you identify it?"
      },
      "choices": [
        { "id": "a", "text": "Kyoto" },
        { "id": "b", "text": "Osaka" },
        { "id": "c", "text": "Tokyo" },
        { "id": "d", "text": "Hiroshima" }
      ],
      "answer": "c",
      "explanation": "Tokyo has been Japan's capital since 1868."
    },
    {
      "id": "q2",
      "type": "multiple-choice",
      "category": "Demo",
      "points": 2,
      "prompt": "What does the following function return when called with `fib(6)`?",
      "code": {
        "language": "javascript",
        "content": "function fib(n) {\n  if (n < 2) return n;\n  return fib(n - 1) + fib(n - 2);\n}"
      },
      "choices": [
        { "id": "a", "text": "5" },
        { "id": "b", "text": "8" },
        { "id": "c", "text": "13" },
        { "id": "d", "text": "6" }
      ],
      "answer": "b",
      "explanation": "The Fibonacci sequence is 0, 1, 1, 2, 3, 5, 8 — so fib(6) = 8."
    },
    {
      "id": "q3",
      "type": "short-answer",
      "category": "Demo",
      "points": 1,
      "prompt": "In the data table below, which country had the highest GDP growth?",
      "table": {
        "headers": ["Country", "GDP Growth (%)", "Year"],
        "rows": [
          ["Vietnam", "7.2", "2024"],
          ["India", "6.8", "2024"],
          ["Indonesia", "5.1", "2024"],
          ["Philippines", "5.9", "2024"]
        ]
      },
      "answer": "Vietnam",
      "caseSensitive": false
    },
    {
      "id": "q4",
      "type": "essay",
      "category": "Demo",
      "points": 5,
      "prompt": "Describe a time you solved a difficult problem. What approach did you take?",
      "minWords": 50,
      "rubric": [
        "Specific situation (not generic)",
        "Clear problem statement",
        "Described methodology",
        "Outcome or reflection"
      ]
    }
  ]
}