···3939### App Rail
40404141- Fixed-width rail on the far left using `surface_container_lowest`.
4242-- Icons use 1.5pt strokes.
4342- Active icon color: `primary` (`#7dafff`); inactive: `on_surface_variant`.
4444-- No persistent labels; labels may appear on hover.
4343+- No persistent labels; labels may appear on hover when collapsed
45444645### Buttons
4746···68676968- Preserve large areas of pure `#000000` to maintain visual breathing room.
7069- Use `secondary_container` for chips/tags to create soft contrast.
7171-- Apply `full` roundedness to key interactive controls (for example, buttons and search bars) to balance the hard screen geometry.
7070+- Apply subtle roundedness to key interactive controls (for example, buttons and search bars) to balance the hard screen geometry.
7171+- Stick to size/weight from tailwind (`-xs`, `-lg`, etc.), only overriding/hardcoding when necessary for hierarchy or emphasis.
72727373### Do Not
74747575- Use pure white (`#FFFFFF`) for long-form body copy; use `on_secondary_container` (`#c9d1dd`) to reduce eye strain.
7676- Use fully opaque borders.
7777- Stack more than three surface-container depth levels; use a backdrop-blur overlay instead.
7878+- No gradients, textures, or patterns. Avoid noise and visual clutter to maintain focus on content.