Mobile UI design sketch
To create a mobile web UI, there'd need to be a design concept first. I've sketched these to show that it doesn't need to be that much different from the current desktop UI:
This assumes no top bar, no top picture, no welcome wall of text. The reliance on popup boxes would still need to be addressed. However, the current client has more obstacles to mobile friendliness than just the UI. For example, it sends nearly a megabyte of non-minified, non-gzipped JavaScript on page load, and the server even intentionally disables the cache for mobile clients.
This assumes no top bar, no top picture, no welcome wall of text. The reliance on popup boxes would still need to be addressed. However, the current client has more obstacles to mobile friendliness than just the UI. For example, it sends nearly a megabyte of non-minified, non-gzipped JavaScript on page load, and the server even intentionally disables the cache for mobile clients.
Comments
My suggestion would be to try to improve this and push a fix in the desktop version first, because there's no reason it couldn't benefit from the improved panel too