viki5432/vikram-portfolio ? reverse-engineered prompt

Build me a modern personal portfolio website for Vikram Kumar D, someone aiming to become a Machine Learning Engineer.

I want it to feel polished and professional, with a strong hero section, smooth scrolling, subtle animations, and a clean responsive layout that looks good on mobile and desktop. It should include sections for about me, skills, projects, education, and contact, plus a button to download my resume. Use a nice blue and purple style with a dark, modern feel.

Please make the contact form actually work, save submissions to a MongoDB database, and show helpful validation messages when someone forgets to fill something in. I also want a simple admin page where I can view the messages people send. Add a basic health check route too.

Use plain HTML, CSS, and JavaScript on the front end, with a Node and Express backend. If you need to check current docs or best practices online, go ahead and do that.