NEW: - Published Chapter 03 (`Mar00n/maintenance/`) — 5 progressive iterations with supporting assets. - Added `maintenance.html`, `maintenance2.html`, `maintenance3.html`, `maintenance4.html`, `maintenance5.html` — chapter content iterations. - Added `Mar00n/maintenance/glbl.css` — global styling with vector/phosphor theme, amber color scheme, CRT effects. - Added `Mar00n/maintenance/js/bezel-reflections.js` — CRT bezel light spill effect simulation (387 lines). - Added `Mar00n/maintenance/css/` subfolder with `maroon-glitch.css` and `substratum.css` supporting stylesheets. IMPROVE: - Iterative development through 5 progressive versions of maintenance chapter. - Enhanced CRT/phosphor visual effects with amber terminal aesthetic and bezel glow animations. FIX: - Created backup of original `substratumb.html` before replacement. - Organized maintenance chapter files into dedicated subfolder structure.

- Added new features and improvements.