Custom Secure Results Website

I need a tailor-made website that lets me input data, process it, and instantly show the results through clean, interactive forms. Everything must sit behind a single, password-protected login, and I also want a CAPTCHA on the sign-in page (and any other data-entry points) to block bots... (Budget: ₹600 - ₹1500 INR, Jobs: HTML, JavaScript, MySQL, Node.js, PHP, Web Development, Web Security, WordPress)