Ok, first thing I noticed, besides the style obviously, is the
color of the lettering on the style. It makes it really hard to read (at least for colorblind people

). Style looks really good other than that. Also, the bit in the navbar(?) for the fields "Username" and "Password" need a space between those words and the input fields, they're a little crammed.
All of the links in the "Nav" don't work with the exception of "Home" and "Forums", not sure if this how you set it up for now or not.
Other than that, I think it looks pretty good