Mega Menu Plugin

Hey, I’m looking to replicate the desktop and mobile mega menus found on Farfetch (https://www.farfetch.com/), END Clothing (https://www.endclothing.com/row), and Mytheresa (https://www.mytheresa.com/).

Specifically, I want to create mobile sub-menus where clicking a menu option opens a slider displaying sub-categories rather than the traditional drop down menu/animations. I’m not looking for dropdown menu, but rather a slide-out effect that creates a secondary menu. Once a sub-category is clicked, a new menu appears, and users can either return to the original menu through a back button or exit using another button. I’ve checked Elementor and my theme, Astra, but they don’t seem to offer these features. Does anyone know of any free plugins or simple CSS solutions? I’m not proficient with CSS but willing to give it a shot if necessary. Thanks!

The page I need help with: [log in to see the link]