Zooming problem?

I have a problem with my webpage, it goes crazy when I try to zoom :)).. I made the page kinda responsive using css grid (it was the first time when I used that) but now I am getting very frustrated because I cannot zoom without messing up the whole page, divs, layouts, design etc :)).

You can see here what I am talking about: https://youtu.be/5zQX1qnoRX0

thank you