Art style: Flat Design.
A massive, cuddly brown bear with thick, shaggy chocolate-colored fur and a large, round snout. His ears are small and rounded. In his winter state, his eyes are heavy and sleepy, often squeezed shut with visible eyelashes. When awake, his expression is grumpy but comical. He has large, heavy paws with dull claws. The setting is a cozy, leaf-lined den or a forest filled with berry bushes. The lighting is warm and golden during the day, and cool and shadowed inside the dark den. He has a very bulky, soft-looking frame.
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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.
