IntroHCI/website ? reverse-engineered prompt

Build me a clean course website for an Intro to HCI class.

It should feel simple, readable, and student friendly, with a homepage that points people to the main parts of the class like assignments, labs, logistics, and the final presentation. I want it to work like a normal class site where students can quickly find what they need, see what is due, and jump between sections without getting lost.

Make the layout polished but not flashy, with easy navigation, clear headings, and pages that look good on desktop and phone. Use the existing images, fonts, CSS, and JavaScript folders if they help. Keep the content easy to update later, since this is for a real class and the details may change over time.

If anything is unclear, use your best judgment and look up current docs online if you need to.