vintage book 3d model

Generate a static, exportable 3D model (.glb) of a vintage hardbound book. Do not generate code, web apps, or pre-made animations; output only a downloadable 3D mesh asset. The model must be constructed with separate, unmerged geometry layers: a distinct front cover, a back cover, a spine, and multiple individual page sections stacked inside. The material must be aged leather for the cover and textured parchment for the pages. Ensure the geometry is clean so the separate parts can be rigged and pivoted independently after exporting.