Center Logo/Remove Page Edit

1) Need to fix how logo is being displayed. I'd like logo to be centered, and also I'd prefer for social media icons to be closer to the menu at the top. 2) I have the white page space at the bottom of my home page - how do I remove this? 3) I'd like to change the color of the page content, but cannot find where to change the color in the customizer. www.myredtea.com Thanks