Modern fitness center interior, sleek metal beams, polished concrete floors, vibrant color accents, mirrored walls, floor-to-ceiling windows, natural light pouring in, dynamic lighting systems, motivational quotes, state-of-the-art exercise equipment, free weights, cardio machines, strength training areas, yoga studios, Pilates reformers, meditation zones, calming greenery, minimalist decor, industrial-chic aesthetics, functional layout, efficient circulation paths, 1/1 composition, warm atmospheric lighting, realistic textures, subtle shadows.