As a novice in the world of web design, I might be asking a simple question or posting in the wrong forum, so bear with me. In my static blog, I'm using Bootstrap 4 to streamline the design process. While I'm generally satisfied with how it looks, one thing that bothers me is the flat navbar blending into the background. I want some suggestions on how to make it more visually striking without making it too complicated. I've experimented with different colors, gradients, and shadows, but nothing seems to work well. Maybe what I need is a combination of all three elements that I lack the expertise to identify.
Take a look at this screenshot of the current development version of the site:
And here's a link to the live production site where you can see the unchanged navbar: