Coloriage robot rétro en dessin au trait avec pièces modulaires
Prompt
Retro robot coloring page
Design: 10 modular parts (head, torso, limbs)
Line art: 1.5px stroke, rounded corners (2px radius)
Features: Visible spring joints (3 coils each)
Grid: Aligned to 12-column layout
Output: Pantone Black C for professional print
