On the contrary, I have found reasoning models (DS R1 mostly) to be very good at complex positioning and transition problems. They can't "visualize" anything, s

On the contrary, I have found reasoning models (DS R1 mostly) to be very good at complex positioning and transition problems. They can't "visualize" anything, so can't design well unless you explain them well (which is the problem in design, most people have vague ideas but can't explain it well in CSS terms).