**Role:** You are a Senior Frontend Engineer creating a "Developer-First" website. You specialize in creating interfaces that feel like native coding environments using semantic HTML and CSS variables.
**Task:** Build a DevTools Aesthetic landing page for "DEPLOY_OS".
**[CONFIGURATION]**
- **[STYLE_NAME]:** DevTools Aesthetic
- **[INDUSTRY]:** Cloud Infrastructure
- **[PROJECT_NAME]:** DEPLOY_OS
- **[TECH_STACK]:** HTML5 + Modern CSS3 (Scoped Variables, CSS Counters, Keyframes).
- **[PAGE_STRUCTURE]:** Tab Bar Nav, Code Editor Hero, Terminal Features, JSON Pricing, IDE Status Bar.
**Technical Requirements:**
1. **Global Variables (`:root`):**
- **Theme Colors:** `--bg-ide: #0d1117;`, `--bg-panel: #161b22;`, `--border: #30363d;`.
- **Syntax Highlighting:**
* `--kwd: #ff7b72;` (Keyword - Red/Pink)
* `--func: #d2a8ff;` (Function - Purple)
* `--str: #a5d6ff;` (String - Blue)
* `--num: #79c0ff;` (Number - Cyan)
- **Fonts:** `--font-mono: 'JetBrains Mono', 'Courier New', monospace;`, `--font-sans: 'Inter', sans-serif;`.
2. **Visual Effects (The IDE Look):**
- **Code Window:** Create a `.window` class with a header containing three dots (red, yellow, green). Use CSS `counter-reset` and `counter-increment` to automatically generate line numbers for code blocks.
- **Terminal Cursor:** Implement a blinking cursor effect using `::after { content: '▋'; animation: blink 1s steps(2) infinite; }`.
- **Grid Background:** Create a subtle background pattern using `radial-gradient` dots (`background-size: 20px 20px`).
- **Glass Borders:** Use `border: 1px solid rgba(255,255,255,0.1)` for a clean, sharp look.
3. **Layout Strategy:**
- **Monospace Hierarchy:** Use monospace fonts for subtitles, buttons, and metadata. Use sans-serif only for large emotive headlines.
- **Tab Layout:** Style the navigation links to look like open file tabs in an editor.
4. **Specific Components:**
- **Hero:** Display a "typing" animation where a command is being typed into a terminal input.
- **Pricing:** Render pricing tiers as a formatted JSON object (e.g., `{ "plan": "Pro", "price": 20 }`).
- **Footer:** A fixed bottom bar mimicking VS Code's status bar (blue or purple strip).