Neumorphic Well

Soft-UI, stated as a contract: the #e0e5ec surface and its paired shadows are the concept, so no mode block retints them — themeable neumorphism would mean different shadow distances, not a different hue family, and this study refuses the confusion.

The input is an inset well (inner shadows, flipped), the button a raised one. One surface, two elevations — the entire style in a single row.