Pixel 8a Quad-Lock Case STL

I need a printable .STL that lets me snap my Google Pixel 8a straight onto my existing Quad Lock mount. The mount has to sit dead-center on the back of the case and integrate cleanly, not as an add-on ring I glue later.

Design direction
• Minimalist look—thin walls, no unnecessary contours or branding.
• One functional flourish: a subtle lip around the screen for face-down protection.
• All stock buttons, USB-C port, microphones, and speakers must remain fully exposed and easy to reach.

Technical notes
• The file must be ready for PLA printing on an FDM printer (0.4 mm nozzle, 0.2 mm layer height).
• Please keep tolerances tight enough for a snug phone fit yet loose enough to insert and remove the device without tools.
• Quad Lock dimensions should match the official specs so it locks with a positive click.

Deliverable
A single, watertight .STL; no assembly parts or extra pieces. If you design in Fusion 360, SolidWorks, or similar, feel free to include the source file as a bonus for future tweaks, but the print-ready STL is the acceptance criteria.