Modern office building, top architecture firm, Washington D.C., sleek glass facade, steel structure, urban cityscape, busy streets, traffic lights, pedestrians walking, professional businessmen, laptops and papers scattered on desks, floor-to-ceiling windows, minimalist interior design, wooden accents, industrial lighting, high-rise skyscraper, metropolitan atmosphere, cloudy day with soft sunlight filtering through clouds, shallow depth of field, wide-angle lens, realistic textures.