hamburger menu deeper without logo

Hey schweg33,
Try this CSS in your Enfold Theme Options ▸ General Styling ▸ Quick CSS field:

@media only screen and (max-width: 989px) { 
	#header_main {
		height: 0;
	}
	.logo.avia-standard-logo a {
		display: none;
	}
	#top .av-burger-overlay li li .avia-bullet, #top .av-hamburger-inner,#top .av-hamburger-inner::before, #top .av-hamburger-inner::after {
  background-color: #fff !important; 
  }
   .html_av-overlay-side-classic #top .av-burger-overlay li li .avia-bullet, .html_av-overlay-side.av-burger-overlay-active #top .av-hamburger-inner, .html_av-overlay-side.av-burger-overlay-active #top .av-hamburger-inner::before, .html_av-overlay-side.av-burger-overlay-active #top .av-hamburger-inner::after {
  background-color: #000 !important; 
  }
}

After applying the css, please clear your browser cache and check.

Best regards,
Mike