karanaswani007/portfolio ? reverse-engineered prompt

Build me a personal portfolio website that feels polished, modern, and interactive.

I want a homepage that introduces me with a short animated headline, a strong hero section, and smooth scrolling down the page. It should have sections for my skills, projects, experience, and certifications, plus a contact area with links to my social profiles and a way for people to reach me. Make it look good on both desktop and mobile, and add small visual touches like subtle animations, particle style background effects, and card hover effects so it feels alive without being cluttered.

Please keep it simple to update later, since I may want to change the content in JSON or similar data files. If there’s a good way to include a chat widget or a clean 404 page, add those too. Use plain HTML, CSS, and JavaScript, and look up current docs online if you need to.