Site title and tagline allignment in profits theme

I use profits theme. I set up logo in its design options, but there is no way to move the title and tagline to the center. It overlaps with the logo. Anybody any ideas?
I tried style.css and put in .header {text-alignment: center;}, but it didn’t work. I tried the same thing with custom-style.css. Can anybody help me to figure it out? Thanks ??
My website is https://kettlebellsagresywnytrening.pl/ .