WordPress – I need to remove the credits in Bueno .CSS

Hi,
I need to hide the footer credits in my website and the “floating” footer that shows up when you scroll down the page with the “powered by WordPress” credit. The theme I’m using is Bueno and if possible I need a way to turn all white or grey with a .css since I think is against the service to remove it.
The website is http://www.glamouris.wordpress.com

Thanks to all of you