How to lower the position headermedia, and remove searchbar

Hi I'm posting this because I think my last version wasn't uploaded This is my website : So I'm using the Catchtheme Photofocus free and i have a few issues. 1. How can I remove the search bar entirely because there's no need for one 2. Is it possible to lower the position of the headermedia because I want to have my site title and menu on the white background instead of on the headermedia because it's unreadable as of this moment. I tried with enabling a white background behind my menu but I've noticed that it was too huge and too much white space, is there a way to make it smaller. It also overlaps my headermedia which makes the headermedia not entirely visible. 3. When I check the site on my phone, the menu changes to a dropdown menu. The problem is that when it's closed, it's white but that makes it invisible on my white background and when I open it, it's entirely black (background and text). Is there a way to change the colors so that it's always visible and easy to read? 4. I've noticed that the site isn't responsive on an Imac, can I fix this? Thanks in advance!