I need a web-based quiz system that builds every question on the fly with OpenAI (or similar) prompts. Each attempt adapts to the learner’s age and chosen language (English or Spanish) using a combination of changing difficulty and varying question types. The quiz spans four core topics—Math, Personality, General Knowledge, and Interests—so the wording of every prompt must remain flexible enough to cover these areas while still staying engaging and age-appropriate. The UI must be beautiful and easy to understand for all ages. When a user finishes, the platform should instantly email me a summary and a secure link to the full report. An admin dashboard will then let me dig deeper: interactive graphs, student profiles, AI-generated feedback on why each answer was right or wrong, plus tailored suggestions for ongoing improvement and an overall AI analysis taking into account their age and all of their answers to the questions. From the same console I want to: • Filter, search, and delete stored reports • Export any report as a beautifully formatted PDF • Monitor usage statistics and limit daily quiz attempts per IP • Adjust SMTP credentials and other system settings on the fly A sleek, modern UI is non-negotiable, and the overall build must be responsive on desktop, tablet, and mobile. Feel free to leverage frameworks like React or Vue, charting libraries for analytics, and a PDF generator for exports—the final stack is up to you as long as it works and looks great.