diff --git a/bmad/_bmad-output/implementation-artifacts/1-1-project-scaffold-and-dev-environment.md b/bmad/_bmad-output/implementation-artifacts/1-1-project-scaffold-and-dev-environment.md
new file mode 100644
index 0000000..700e2b2
--- /dev/null
+++ b/bmad/_bmad-output/implementation-artifacts/1-1-project-scaffold-and-dev-environment.md
@@ -0,0 +1,133 @@
+# Story 1.1: Project Scaffold & Dev Environment
+
+Status: ready-for-dev
+
+## Story
+
+As a developer,
+I want a properly configured Svelte + Tailwind + Vite project with the correct folder structure,
+so that all subsequent stories have a solid foundation to build on.
+
+## Acceptance Criteria
+
+1. Project created using `npm create vite@latest` with Svelte template, builds and runs with `npm run dev`
+2. Tailwind CSS v4 installed via `@tailwindcss/vite` plugin; `@import "tailwindcss"` works in `app.css`
+3. Vitest installed as dev dependency; `npx vitest` runs without error
+4. Folder structure matches Architecture: `src/lib/`, `src/components/`, `public/fonts/`
+5. `src/lib/constants.js` exists with GRID_SIZE (4), WIN_VALUE (2048), SPAWN_PROBABILITY (0.9), DIRECTIONS enum, and TILE_COLORS (12-tier hex map)
+6. Clear Sans font placed in `public/fonts/` with `@font-face` declaration in `app.css`
+7. Page background set to `#faf8ef`
+
+## Tasks / Subtasks
+
+- [ ] Task 1: Initialize project (AC: #1)
+  - [ ] Run `npm create vite@latest try-bmad -- --template svelte` (or init in current directory)
+  - [ ] Verify `npm run dev` starts dev server at localhost:5173
+  - [ ] Remove default Svelte demo content (Counter component, default styles, Svelte/Vite logos)
+
+- [ ] Task 2: Install and configure Tailwind CSS v4 (AC: #2)
+  - [ ] Run `npm install tailwindcss @tailwindcss/vite`
+  - [ ] Add `tailwindcss()` plugin to `vite.config.js` plugins array
+  - [ ] Replace content in `src/app.css` with `@import "tailwindcss";`
+  - [ ] Verify Tailwind utilities work in App.svelte (e.g., a `bg-red-500` class renders correctly)
+
+- [ ] Task 3: Install Vitest (AC: #3)
+  - [ ] Run `npm install -D vitest`
+  - [ ] Add `"test": "vitest"` script to `package.json`
+  - [ ] Create a placeholder test file `src/lib/game-logic.test.js` with a single passing test
+  - [ ] Verify `npx vitest run` passes
+
+- [ ] Task 4: Create folder structure (AC: #4)
+  - [ ] Create `src/lib/` directory (for pure JS game logic modules)
+  - [ ] Create `src/components/` directory (for Svelte UI components)
+  - [ ] Create `public/fonts/` directory (for Clear Sans font files)
+
+- [ ] Task 5: Create constants module (AC: #5)
+  - [ ] Create `src/lib/constants.js` with all game constants:
+    - `GRID_SIZE = 4`
+    - `WIN_VALUE = 2048`
+    - `SPAWN_PROBABILITY = 0.9` (probability of spawning a 2 vs 4)
+    - `DIRECTIONS = { UP: 'up', DOWN: 'down', LEFT: 'left', RIGHT: 'right' }`
+    - `TILE_COLORS` map: `{ 2: { bg: '#eee4da', text: '#776e65' }, 4: { bg: '#ede0c8', text: '#776e65' }, 8: { bg: '#f2b179', text: '#f9f6f2' }, 16: { bg: '#f59563', text: '#f9f6f2' }, 32: { bg: '#f67c5f', text: '#f9f6f2' }, 64: { bg: '#f65e3b', text: '#f9f6f2' }, 128: { bg: '#edcf72', text: '#f9f6f2' }, 256: { bg: '#edcc61', text: '#f9f6f2' }, 512: { bg: '#edc850', text: '#f9f6f2' }, 1024: { bg: '#edc53f', text: '#f9f6f2' }, 2048: { bg: '#edc22e', text: '#f9f6f2' }, super: { bg: '#3c3a32', text: '#f9f6f2' } }`
+
+- [ ] Task 6: Add Clear Sans font (AC: #6)
+  - [ ] Download Clear Sans woff2 from Intel's open-source release or a CDN
+  - [ ] Place `ClearSans-Bold.woff2` (and regular weight if available) in `public/fonts/`
+  - [ ] Add `@font-face` declaration in `src/app.css` after the Tailwind import:
+    ```css
+    @font-face {
+      font-family: 'Clear Sans';
+      src: url('/fonts/ClearSans-Bold.woff2') format('woff2');
+      font-weight: bold;
+      font-style: normal;
+      font-display: swap;
+    }
+    ```
+
+- [ ] Task 7: Set page background and base styles (AC: #7)
+  - [ ] In `src/app.css`, add base body style: `body { background: #faf8ef; font-family: 'Clear Sans', 'Helvetica Neue', Arial, sans-serif; margin: 0; }`
+  - [ ] Clean up `App.svelte` to render a minimal placeholder (e.g., "2048" heading) confirming styles work
+
+## Dev Notes
+
+### Architecture Compliance
+
+- **Stack:** Svelte 5 + Vite 9 + Tailwind CSS v4 + Vitest (vanilla JS, NOT TypeScript)
+- **Svelte version:** Use Svelte 5 with runes reactivity (`$state`, `$derived`) — NOT Svelte 4 stores
+- **Tailwind v4:** Uses `@tailwindcss/vite` plugin directly — NO PostCSS config, NO `tailwind.config.js` needed for basic setup
+- **No SvelteKit:** This is plain Svelte + Vite. Do NOT use `npx sv create` or add routing/SSR/adapters
+- **JavaScript only:** Do NOT add TypeScript. All files use `.js` and `.svelte` extensions
+
+### Critical Anti-Patterns (DO NOT)
+
+- DO NOT use SvelteKit (no `+page.svelte`, no `load` functions, no adapters)
+- DO NOT add TypeScript (no `.ts` files, no `tsconfig.json`)
+- DO NOT use Svelte stores (`writable`, `readable`) — project uses props-down pattern
+- DO NOT install PostCSS — Tailwind v4 handles everything via Vite plugin
+- DO NOT create a `tailwind.config.js` yet — will be needed later for custom theme but not in this story
+
+### Naming Conventions
+
+- Svelte components: `PascalCase.svelte` (e.g., `App.svelte`, `Grid.svelte`)
+- JS modules: `kebab-case.js` (e.g., `game-logic.js`, `constants.js`)
+- Functions: `camelCase` (e.g., `initGame`, `moveTiles`)
+- Constants: `UPPER_SNAKE_CASE` (e.g., `GRID_SIZE`, `WIN_VALUE`)
+
+### Project Structure After This Story
+
+```
+try-bmad/
+├── index.html
+├── package.json
+├── vite.config.js
+├── .gitignore
+├── public/
+│   └── fonts/
+│       └── ClearSans-Bold.woff2
+├── src/
+│   ├── main.js
+│   ├── App.svelte
+│   ├── app.css
+│   ├── components/          (empty, ready for Story 1.3+)
+│   └── lib/
+│       ├── constants.js
+│       └── game-logic.test.js  (placeholder)
+```
+
+### References
+
+- [Source: _bmad-output/planning-artifacts/architecture.md#Starter Template Evaluation]
+- [Source: _bmad-output/planning-artifacts/architecture.md#Implementation Patterns & Consistency Rules]
+- [Source: _bmad-output/planning-artifacts/architecture.md#Project Structure & Boundaries]
+- [Source: _bmad-output/planning-artifacts/ux-design-specification.md#Color System]
+- [Source: _bmad-output/planning-artifacts/ux-design-specification.md#Typography System]
+
+## Dev Agent Record
+
+### Agent Model Used
+
+### Debug Log References
+
+### Completion Notes List
+
+### File List
diff --git a/bmad/_bmad-output/implementation-artifacts/sprint-status.yaml b/bmad/_bmad-output/implementation-artifacts/sprint-status.yaml
index fae4f8e..d86ec47 100644
--- a/bmad/_bmad-output/implementation-artifacts/sprint-status.yaml
+++ b/bmad/_bmad-output/implementation-artifacts/sprint-status.yaml
@@ -35,7 +35,7 @@
 # - Dev moves story to 'review', then runs code-review (fresh context, different LLM recommended)
 
 generated: 2026-04-13
-last_updated: 2026-04-13
+last_updated: 2026-04-13T01:00:00
 project: try-bmad
 project_key: NOKEY
 tracking_system: file-system
@@ -43,8 +43,8 @@ story_location: _bmad-output/implementation-artifacts
 
 development_status:
   # Epic 1: Play a Complete Game (Desktop)
-  epic-1: backlog
-  1-1-project-scaffold-and-dev-environment: backlog
+  epic-1: in-progress
+  1-1-project-scaffold-and-dev-environment: ready-for-dev
   1-2-game-logic-module: backlog
   1-3-game-board-and-tile-rendering: backlog
   1-4-game-header-score-display-and-new-game-button: backlog