Moody Smartphone Glow Portrait

Create a moody, realistic vertical photo of a young woman with {argument name="hair color" default="dark brown"} hair tied in a messy bun, sitting or leaning forward on a sofa in a dimly lit room at night. She wears a loose, semi-sheer {argument name="shirt color" default="white"} button-up shirt falling open at the collar, with soft folds and natural fabric texture. Her head is bent downward toward a glowing smartphone near the bottom right edge of the frame, one hand touching the screen so the phone casts a small cool white-blue light on her fingers. Compose the image as an intimate close-up from chest to head, cropped tightly, with her face mostly hidden by her posture and covered by a large opaque rectangular privacy block in muted dark brown-gray over the right-center face area. Background is dark, soft, and out of focus, suggesting a couch or wall, with low-key cinematic lighting, subtle grain, shallow depth of field, realistic skin tones, and a quiet melancholic atmosphere. Use a vertical {argument name="aspect ratio" default="9:16"} composition, no visible text, no watermark, no extra objects.