programmingpioneer/sufyan-portfolio ? reverse-engineered prompt

Build me a clean personal portfolio website for a software engineer named Sufyan.

I want it to feel modern, responsive, and easy to use on phone, tablet, and desktop. It should have a homepage plus separate sections or pages for About, Experience, Projects, and Contact, with a polished navigation that makes it simple to move around. Include a strong intro, a place to show projects, and clear ways for people to reach out through email and social links.

Please add a dark mode toggle, smooth hover effects, and a nice visual style without using any framework. Keep it lightweight and built with plain HTML, CSS, and JavaScript. Make sure the layout looks professional, the content is organized, and the page works well as a real portfolio someone could share with employers or clients.

If anything is unclear, look up current best practices online and keep iterating until it feels finished.