Settings Card
A frame for one setting: description, control, and a footer that says what saving does.
Save Footer
Edits are drafts. The footer swaps its hint for “Unsaved changes”, then Reset and Save.
Toggle Rows
A flush card of switches. An instant row saves on change and says so beside the switch.
Options
Pick one tier; the highlight slides between rows.
Read-Only Value
Destructive
Say what can’t be undone next to the action.