Streetwear Lookbook Loop

Create a 12 seconds urban fashion video featuring one model wearing a cobalt technical jacket in a cinematic near-future city. Story progression: The model walks through a concrete passage as daylight shifts to graphic blue light; the final stride aligns exactly with the opening frame. Camera plan: Low three-quarter tracking shot at walking speed with a fixed subject distance. Motion behavior: Consistent gait, garment physics and a seamless last-to-first frame. Sound direction: Footsteps, fabric movement and a minimal percussive loop. Use coherent screen direction, physically plausible momentum, stable subject identity, consistent wardrobe and lighting, and a clear visual endpoint. Required constraints: Preserve face, jacket construction and body proportions throughout. Do not introduce cuts unless requested, do not morph faces or products, do not add illegible text, and do not imply a real endorsement. Deliver a 9:16 vertical version unless another format is supplied.