Change Header for Journal Opencart theme

First take a look at journal theme, the first skin [login to view URL] i need to change the header to be like that english [login to view URL] arabic [login to view URL] it is an rtl theme DEsktop version: I need the horizontal menu to be like that but the first item of it has a vertical menu expanded by default and cover all the categories in the and when i scroll down the header of horizontal menu and vertical expansion is fixed in all pages and dont move when scrolling while data scroll in Mobile version: the horizontal menu is expanded by default but the vertical is not expanded while it can be expanded by pressing on the arrow as the current developed case. the menu should be collapsed in any other page rather than the home as category or product or ... etc code should be clean and wsc validated it should not override the opencart code but use the theme css panel or ocmod for changes without playing in the core