Twitter headquarters, modern skyscraper, glass facade, steel frame, urban San Francisco, sunny day, blue sky, few white clouds, cityscape, busy streets, people walking, laptops, smartphones, coffee cups, open office space, minimalist decor, wooden desks, ergonomic chairs, large screens, coding, developers, programmers, tweets on screens, hashtags, @ symbols, notification icons, subtle ambient lighting, 3/4 composition, shallow depth of field, vibrant colors.