LED-Lit Backpack Interior

I want to create a backpack whose interior lights up the moment it’s unzipped so I can find items in the dark without fumbling for a phone torch. The illumination should come from slim LED strip lights... (Budget: ₹750 - ₹1250 INR, Jobs: 3D Design, 3D Modelling, Circuit Design, Electrical Engineering, Materials Engineering, Product Design, Product Development, Prototyping)