Help with Responsive Web Design Projects - Build a Product Landing Page

Hello! I´m trying to make the navbar here ( look like an actual topbar (always on top, logo on the left, and the options below both of these things). No clue on how to get it done though. Could you help me with it? Thanks!

Share a link to your current code, so we can see what you have tried so far.

Thanks for the reply. Here´s the entire code:
Deleted most of the things I tried because they didn´t seem to improve the situation.