A CCTV-style surveillance footage of a stylish teenage girl walking past a security camera, looking up at the camera with a bright friendly smile, waving her hand casually, candid and natural movement, slightly confident model-like appearance, casual modern outfit, indoor public space (hallway or lobby), high angle security camera perspective, slightly distorted wide-angle lens, low resolution, monochrome or desaturated color, timestamp overlay, subtle scan lines, digital noise, compression artifacts, motion blur, uneven lighting, harsh shadows, grainy texture, authentic security camera aesthetic, unpolished and documentary feel