Universal Exam Engine (Next.js + Styled-Components)

npm install
npm run dev

Open: http://localhost:3000/engine

• Question formats: MCQ single/multi, DnD match, DnD order, Hotspot, Fill-blank, Scenario blocks
• Blueprint selection (balanced)
• Deterministic shuffling (seeded)
• Attempt lifecycle: resume, restart, reshuffle, retry incorrect, flag
• Local persistence via localStorage (Supabase-ready later)
• Results analytics by domain/type

No inline styling: all styles are styled-components.