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Create one continuous 11-second vertical social video, aspect ratio 9:16, with an informal UGC phone-camera aesthetic. Set the scene at a foundation slab where a trained construction worker is checking progress during a controlled concrete pour. The worker wears a hard hat, reflective vest, safety glasses, gloves, high-visibility trousers, and protective boots. [00-03s] Begin with a close handheld selfie view using a slightly wide phone-lens feel; the worker walks slowly beside a barricaded work zone, keeping a safe distance while gesturing toward the slab. Bright overcast daylight produces soft, even illumination and realistic gray concrete tones. [03-07s] The camera dips and pans outward to show a crew member using a powered screed on fresh concrete, with realistic wet material movement and no splashing toward people. The camera remains steady enough to feel intentional but retains natural hand motion. [07-11s] The worker brings the camera back to his face, nods, and steps toward a safe observation point as the slab surface becomes smoother. Include authentic exposure adjustment and subtle phone autofocus. No text, logos, or watermarks. Sound design: low equipment hum, controlled motor vibration, distant site chatter, boot steps, and soft wind.