Mobile first social dashboard theme switcher using grid and flex

I had to test my knowledge of CSS grid. i had lots of issues building this site so any feedback will be appreciated on how to make my CSS coding syntax more professional and efficient as I'm able to move on to JavaScript in my studies. i've fixed the isue with accesibilty and have adding animation to the site. this site is responsive and accessible. it should work without any issue. If there is any issue with the browser support or the animation please leave a feedback. Any other feedback is really appreciated. I'll also apperiate if i can find any material or video tutorial on GSAP.