Interactive Quiz & Puzzle Website

I need a responsive website that hosts a mix of engaging multiple-choice quizzes and casual puzzle games, all running smoothly in the browser. Visitors will be able to create an account, sign in securely, track their scores, and pick up where they left off.

Core features
• User registration
• Dashboard that lists available quizzes and puzzle games with progress indicators
• Timed and untimed multiple-choice quiz modes, automatic scoring, and instant feedback
• At least one puzzle game (e.g., word, logic, or grid-based) that records best times or highest levels
• Mobile-friendly layout so the site feels like an app when opened on a phone
• Simple admin area where I can add, edit, or remove questions and puzzles without touching code

Technical notes
I’m platform-agnostic on the stack as long as it is modern, secure, and easy to maintain—React, Vue, or vanilla JS on the front end paired with a lightweight backend (Node, Django, or similar) and a small relational database would be ideal. User data, quiz content, and scores must be stored server-side; please build with future scalability in mind so new games or categories can drop in with minimal rework.

Acceptance criteria
1. All listed features function bug-free on Chrome, Firefox, Safari, and mobile browsers.
2. Registration and authentication pass basic penetration tests (no plain-text passwords, proper session handling).
3. Admin panel allows CRUD operations on quiz questions and puzzle content.
4. Source code, documentation, and deployment instructions are handed over at project completion.

Let me know which tech stack you prefer and a brief outline of your development approach so we can get started.