Qualified Dividends part of Total Income ?

I used TT for 1st time in 2023 and was impressed. I am trying to figure my estimated payments for TY2024 and was using the free basic online TT calculator. When I enter my data (Interest, Dividends, SS, etc.) it gives me an  Income total. That total is less that the sum of my inputs. It differs in part because only 85% of SS in included in Income. BUT it also does not include the amount I entered for Qualified Dividends.  I know that I am paying 15% on my Qual. Div as I saw it added in on the Sched D Worksheet for my 2023 taxes. Why do the Qualified Dividends not get reflected as part of Total Income in the TT calculator or  (1040 Line 9) or AGI (1040 Line 11)?

 

I know I'm paying taxes on it - just trying to understand things better.  Thanks!