Lemenzo Clock premium UI — approved direction

HOME
- Top-left: Lemenzo Clock logo + “Lemenzo Clock”.
- Settings is an icon control at top-right.
- “Private • local • offline” is secondary blue-silver metadata, not a gray pill.
- Primary navigation is fixed at the bottom: Alarm / Timer / Stopwatch / World clock / Bedtime.
- Selected navigation is Lemenzo blue; inactive navigation uses dark navy/blue surfaces.
- Main content is preview-first with large clean spacing and restrained cards.

ALL PAGES
- Every Activity applies Android statusBars + displayCutout safe top inset.
- Navigation-bar bottom inset is also applied.
- Subpages use a visible top-left back arrow and page title.
- Black / near-black is the dominant background.
- Cards use near-black/navy rather than gray.
- Lemenzo blue is the primary interactive/accent color.
- Silver-blue is reserved for secondary text.
- No large gray panels.

DESIGN TOKENS
Background #03060B
Surface #070D16
Surface 2 #0A1422
Surface 3 #0D1A2B
Primary #2F81F7
Primary bright #1687FF
Primary soft #102B50
Secondary text #88A2C8
Outline #173052
Text #F7F9FC