Smiling Young Professional in Modern Office

photorealistic corporate lifestyle portrait of a smiling young adult man with short dark hair, neatly trimmed beard, round eyeglasses, wearing a light blue button-up shirt with sleeves rolled to the forearms, holding a black smartphone with both hands at chest level, smart casual professional look, standing slightly left of center in a modern glass-walled office, long wooden conference table behind him with an open laptop and papers, blurred office interior with dark glass partitions and soft bokeh, shallow depth of field, natural window light mixed with soft indoor lighting, crisp focus on face and shirt, realistic skin texture, subtle background blur, professional headshot photography, 50mm lens, f/2.8, warm friendly confident mood, muted neutral office tones with blue shirt as the main color accent