Modern Fitness Reflection

Photorealistic mirror selfie in a modern fitness club. A girl sits on a low platform, tilting her head slightly, resting her hand on her temple, looking at the phone screen. Clothing - a black tracksuit, light sneakers. Background - a spacious hall, mirrored walls, other people in the background, simulators and fitness equipment creating depth of the frame. The light is warm artificial, combined: ceiling + reflections from mirrors. The composition is vertical, the girl is in the center, the background is slightly blurred. The atmosphere of an evening workout, realism, high detail, 4K.