Rugged brutalist building, raw concrete walls, minimalist aesthetic, large windows, clerestory openings, skylights, industrial materials, metal beams, exposed ductwork, urban cityscape, overcast sky, diffused natural light, soft shadows, dramatic contrast, high ceilings, open floor plan, communal spaces, functional simplicity, structural honesty, brutalist textures, weathered concrete, steel accents, subtle color palette, ambient occlusion, realistic rendering, cinematic lighting.