edit the existing gym render add a dark false ceiling grid throughout the space suspended below any structural elements with a clean uniform pattern integrate gym style lighting into the ceiling grid including bright linear led panels and subtle spotlights to evenly illuminate weight lifting functional and cardio areas keep all other elements exactly as they are mezzanine staircase weight lifting and cardio equipment functional area with rubber and fake grass flooring materials lighting perspective and depth unchanged ensure the lighting feels natural for a gym highlights textures without creating harsh shadows and does not obscure any equipment no people cinematic architectural visualization
