Twitter headquarters, modern architecture, glass building, steel frame, sleek lines, minimalist design, rooftop garden, cityscape view, San Francisco, California, sunny day, blue sky, few white clouds, warm natural light, 3/4 composition, shallow depth of field, vibrant colors, urban feel, contemporary style, clean lines, open space interior, collaborative work environment, wooden tables, ergonomic chairs, large screens displaying Twitter logos, ambient lighting, soft shadows.