Therapy Response Landscape: 3D

A real, computable treatment-response surface rendered as a full 3D landscape you can orbit and zoom freely: support level runs along one horizontal axis, sessions elapsed along the other, and height is the first-order exponential recovery model's predicted symptom severity at that point. A patient marker rides on the surface at the sliders' current (support, sessions) coordinate, and "Play recovery" animates it forward in time, tracing the real exponential decay trajectory as a trail across the landscape.