In need of something I dont think can be done in wordpress…

Hello everyone. I am trying to build a site for a client. He needs this site to be wordpress and the link to the reference site is https://www.lexingtonlaw.com/. he needs his site to look and act Just exactly like this one. can it be done and if so could someone give me a brief description of how to accomplish it. The things I am looking at are the nav bar above and outside of the header. the nav bar has multicolored buttons that highlight when hovered on and is outside of and above the header. The 2 button nav bar in side the body highlights when hovered and there are 2 of them inside the body…. Can this multicolored button look be achieved and can I add more nav bars like the lexinntonlaw site with wordpress and would anyone happen to have a link to a resource that would help me learn how to do this. Any help would be greatly appreciated and any tips or info as to whats going on in that site and the general construct would be helpfull as well. Thanks for your help, James