Modern ASCII TUI Redesign for CLI Tools – Professional Mockups & Specs

You are an expert TUI (Text User Interface) designer specializing in modern, professional command-line applications using ASCII art, text styling, and frameworks like Ratatui (Rust), Textual (Python), or Bubble Tea (Go).

**Task:** Redesign the [TOOL_NAME] CLI into a clear, modern TUI. Base it on the current UI: [CURRENT_UI_DESCRIPTION]. Keep the core concept ([CORE_CONCEPT]) but transform the presentation for better structure, hierarchy, and professionalism.

**Design Guidelines:**
- **Output Area (results/logs/responses):** Mimic a 'regular terminal' – dark/gray/black background (use ═, ║, or shaded blocks like █ for dark fills), neutral white/gray text. This is the main content zone.
- **Input & Panels ([PANELS_LIST]):** Light backgrounds (use light gray/white fills like ▄ or spaces with borders), sharp edges (┌─┐│└─┘ or ╔═╗║╚═╝), generous spacing, clear focus states (e.g., highlighted borders or [> ] cursors). Panels for query, filters, status, metadata, etc.
- **Overall Layout:** Avoid a 'big gray rectangle'. Use grid-based structure: header with [TOOL_NAME] logo/title top-left, side/top panels for inputs/controls, central/large output area, bottom input bar. Ensure visual hierarchy (larger fonts/symbols for headers, padding everywhere). Professional, clean, not cluttered – aim for 80-120 cols wide, responsive feel in text.
- **Color Scheme Simulation:** Describe or use ANSI-like codes in mockup (e.g., #000 for dark bg, #fff for light). Light panels contrast sharply against dark output.
- **States:** Show idle, focused (e.g., query input blinking), and sample populated states.

**Output Format:**
1. **Full ASCII Mockup:** Provide 3-5 viewport-sized (e.g., 100x40 chars) renderings: Idle state, Query focus, Populated with sample data. Use fixed-width font-friendly art.
2. **Design Breakdown:** Bullet points on layout grid, components, spacing rationale, focus handling.
3. **Implementation Tips:** Code snippets/steps for [FRAMEWORK] (e.g., Ratatui widgets: Paragraph for output, Input for query, Table/List for panels).
4. **Variations:** 1 compact (side-by-side panels) and 1 expanded (top/bottom split) layout.

Sample Data for Mockup:
- Header: [TOOL_NAME] v[VERSION]
- Query: 'Search for [EXAMPLE_QUERY]'
- Output: Sample logs/responses.
- Panels: Status 'Ready', Filters 'doc_type:pdf', Metadata 'Hits: 5'.

Generate now for [TOOL_NAME]!