Mobile menu: Logo stretched at top, with menu burger, search, etc below.

Hey halkmarine,
Thanks for your patience, unfortunately for mobile this is not a good way to achieve is, instead try this CSS in your Enfold Theme Options ▸ General Styling ▸ Quick CSS field to prevent the overlap:

@media only screen and (max-width: 767px) { 
	#menu-item-shop .cart_dropdown_link {
    padding: 0;
	}
  .responsive.html_cart_at_menu #top .main_menu .menu>li:last-child {
    padding-right: 0;
    margin-right: -24px;
  }
}

After applying the css, please clear your browser cache and check.
This is the expected result:

Best regards,
Mike