- rename `#osd` selectors to `#osd-container` for better encapsulation
- add `min-width: 180px` to the container definition
- update muted styling rules to use `#osd-container.muted` instead of element‑specific classes
- replace deprecated `#brighntess-icons.muted` with `#osd-image.muted`
- clean up stray braces and whitespace in the stylesheet