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 integrated neatly along the inner seams and pockets; they must be bright enough to reveal contents but gentle on battery draw and heat.

Here’s what I need from you:
• A practical design concept that shows exactly where the LED strips sit, how they mount, and how the wiring routes without snagging anything I carry.
• A simple circuit diagram and parts list—including suitable strip type, switch or sensor (touch, zipper-triggered, or magnetic), and recommended power solution. I’m open to rechargeable packs, replaceable cells, or even a USB power bank, so suggest what best balances weight, cost, and ease of recharging.
• Assembly instructions clear enough for a small manufacturing run or a detailed DIY build.

If you can visualise the lighting in 3D software, even better, but clean sketches with dimensions work too. Materials must remain lightweight, splash-resistant, and safe around fabric.

I’ll sign off once the concept, diagrams, and BOM reach a point where a prototyper can follow them without guessing. Let’s make rummaging in a dark bag a thing of the past.