There are 2 or 3 small touches of JavaScript here and there which make conservative enhancements. But, it's a base design requirement that all features have to work without JavaScript - and once they do, adding JavaScript doesn't often seem very compelling.
I like the minimalist approach of many aspects of your work. And the whole website using no JavaScript is also very nice to see.
Have you thought about adding some opt-in JavaScript to enhance the user experience?