Problem with Responsive pomodoro clock

hi,can anybody help me,i used css grid,i made a nested gird on the content area,the problem is i can’t figure out how to make the column 3 become the column 2 ,and the column 3 become column 2 on the nested grid for mobiles,here is my codepen

thanks a lot,finaly i solved the problem! :smiley::smiley: