Art style: Flat Design.
Close up of a door lock clicking shut, brass lock, warm morning light, 2D flat cartoon style bold outlines
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FINAL STYLE ENFORCEMENT (this is the authoritative rendering directive — it overrides any style wording elsewhere in the prompt):
Render this image entirely in "Flat Design" style. Match the lighting grammar, material response, colour science, level of realism / stylisation, line weight, and shading model typical of "Flat Design". Keep the subject, composition, camera angle, lighting direction, and colour palette from the description above — but EVERY surface, skin, fabric, material, and environmental element must be rendered in the "Flat Design" idiom, not in any other medium.
Reference images context (match the visual style and elements from these):
- reference photo (general): use as visual reference for setting, objects, and atmosphere
- reference photo (general): use as visual reference for setting, objects, and atmosphere
