ribesh07/Quantrox — reverse-engineered prompt

Build me a polished dark themed web app called Quantrox for gaming top ups and digital exchange.

Users should be able to sign up, log in, see a modern dashboard, browse game cards like Juwa and Firekirin, buy game coins, exchange Cash App USD to USDT with a live looking rate calculator, upload a payment screenshot as proof, and track the status of all their orders.

Admins need their own dashboard where they can review every order, approve or reject payments with notes, manage games with poster images and rates, manage payment QR codes, and control user roles like user, staff admin, and super admin.

Please make it mobile friendly and production ready, with protected pages, secure password handling, PostgreSQL data storage, and Prisma models. Use the existing Next.js TypeScript setup and make the UI feel premium, like a clean trading or gaming finance platform. Look up current docs online if you need to.