Details deserve attention proportional to what depends on them.

Attention is limited, so spreading it evenly across every detail guarantees that the important ones get less than they need. The sensible allocation is proportional, with the most care going to the parts that carry weight, the parts others build on, the parts that would be expensive to fix later.

Before starting, do a quick pass to ask what depends on each piece of this. Then give your best hours to the load-bearing ones and let the decorative parts be merely fine. Being deliberately unequal in your care is not carelessness, it is the only way care lands where it counts.