- Individual keys now use bordered mini-panels (NormalBorder 238) + dedicated bg/fg per type:
- Numbers: neutral dark
- Operators: 63 accent
- Clears (C/AC): red-tinted warning
- MOD: orange highlight
- BASE: 63 border + bold (stands out)
- Height(2) + padding for chunkier physical-button presence.
- Pressed state inverts to flashStyle (bright 63 bg + white bold) for 140ms on every key action — direct 'click' feedback.
- Gaps between keys + full-width backing panel (bg 234 + border) create a 'faceplate' effect so keys look like they sit on a real calculator keyboard.
- Updated per-key tracking (pressedKey) in model + Update so flash is applied to the correct button.
- Documented the new tactile decoration in docs/UI_DESIGN.md (replaced old plain-text description).
- Matches the wide integrated display row from previous iteration.
The keypad now feels much more tactile and calculator-like while staying true to the lipgloss + gostations patterns.
- Refactored View() display to a single wide row inside the LCD panel:
- Leading base indicator on the left: [BIN], [HEX], etc. (flashes on successful cycle)
- Number (or CERR) right-aligned in the remaining maximal width (spans full available inside the card)
- LCD container uses full dispW (based on terminal width) + vertical padding for visual weight
- CERR still flashes the number slot (base label remains visible on left)
- Keypad grid and hint now also respect the wide dispW and are centered under the display
- Updated docs/UI_DESIGN.md and ARCHITECTURE.md with the new integrated layout (replaced old separate two-row description and ASCII)
- Matches user request: main display spans full maximal width; base begins the main display row (e.g. [ [BIN] [ 3465... ] ] inside the panel)
This is iterative polish on the phase 3 spike. Paper trail updated.
- internal/ui/ui.go: full Bubble Tea App
- Large tall LCD-style number area + small current-base row (only the active label highlighted)
- CERR flash (~600ms color 63) on BASE when value is non-integer (exact policy from spec)
- 140ms key action flashes (same style as gostations volume/skip/stop)
- Minimal usable keypad grid (digits, + - * / = . +/- MOD C AC, prominent BASE button)
- Tab (and button) drives engine.CycleBase()
- Content-sized centered card (lipgloss.Place + rounded 63 border), subtle 238 inners
- Minimal non-wrapping hint row
- Reuses gostations lipgloss idioms (Join*, Width/Align/Center, flashStyle, NormalBorder, etc.)
- main.go: now actually launches tea.NewProgram (with AltScreen)
- Binary: build/gralculator is runnable
- Demonstrates: enter 23/6 = (or 1/3), press Tab → CERR blink, base stays DEC; integer values cycle cleanly and reformat (HEX etc.)
All three phases complete. Architecture + design notes live in docs/. Full commit history for backtracking.
