minimalist-portfolio-website with SCSS and JAVASCRIPT

Hello, My solution to this not so minimalist portfolio website, it took me a lot to build it from scratch with CSS and JS. This was my biggest project on FEM and i really enjoyed making this website. I have tried my best to make this portfolio website responsive for mobile@375px, tablet@768px and desktop@1440px and still there is some mistakes that i need to figure out. I feel more comfortable working with bigger project after this challenge, but still need practice for large scale projects management and using more scss capabilities. Any help for making this javascript mobile menu, navigation and form validation better are welcome.

If you have any improvements to my code write them in feedback.