Custom CSS

I decided to modify/simplify the CSS on this thing to something more ~cybre~. Makes the place feel more-- comfy. Colors are probably not final - enjoy the green/red on dark gray for now. The only thing that really remains of the old theme is the category selector ^^ further up ^^ just below the page title. The old theme was "notmyidea" by Smashing Magazine. A side effect of this is that the HTML is now even smaller, at 14 KiB for the blog index.