Sri-Rahul/Portfolio ? reverse-engineered prompt

Build me a personal portfolio website for Sri Rahul Namana that feels dark, cinematic, and polished.

I want a single page site with a big immersive landing section using a Three.js style 3D background, smooth scrolling, scroll driven animations, and a custom blob cursor. The page should include sections for About, Practices, Career, Work, Certifications, and Contact, and the Work area should show recent projects with nice screenshots and clean cards.

Make it feel modern and interactive, with subtle motion and a premium look, but still fast and simple to run as a static site. Use plain CSS for the styling, and make sure the layout works well on desktop and mobile. If you need to check current docs for any libraries or best practices, look them up online first.

Also include a small settings panel so I can tweak motion or theme behavior easily.