feat(page): initial landing page with dev tooling

Pre-launch landing page for The Lofty Project — a 501(c)(4) connecting
creative talent with leftist organizing. Includes hero with blur-in
line-by-line animation, three-pillar section (Talent/Media/Infrastructure),
interest signup buttons, and responsive design with fluid typography.

Tooling: Astro 5, Biome linting/formatting, Lefthook git hooks,
Commitizen with conventional commits, and project documentation.

CLAUDE.md

@@ -0,0 +1,81 @@
+# CLAUDE.md
+
+## Project Overview
+
+Lofty is a 501(c)(4) social welfare organization connecting creative professionals with the progressive movement. This repo is the **pre-launch landing page** — a single-page static site to collect email signups.
+
+**Stack:** Astro 5 (static output), TypeScript, Bun 1.3+
+
+## Project Structure
+
+```
+src/
+  layouts/Layout.astro   # HTML shell, meta tags, Typekit fonts, design tokens, CSS reset
+  pages/index.astro      # All page sections (hero, pillars, signup form, footer), scoped CSS, client JS
+public/
+  favicon.svg            # Stylized "L" mark
+astro.config.mjs         # Static output, site URL, dev toolbar disabled
+```
+
+Two-file architecture: `Layout.astro` (global concerns) + `index.astro` (all content). No component files — single page with no reuse opportunity.
+
+## Development
+
+```bash
+bun run dev       # Start dev server (localhost:4321)
+bun run build     # Static build to dist/
+bun run preview   # Preview production build
+```
+
+## Linting & Formatting
+
+Uses **Biome** for both linting and formatting.
+
+```bash
+bun run lint       # Check for lint + format issues
+bun run lint:fix   # Auto-fix lint + format issues
+bun run format     # Format all files
+```
+
+**Biome config:** 4-space indent, 100 char line width, double quotes, trailing commas, semicolons. Astro files have `noUnusedImports`/`noUnusedVariables` disabled (Biome can't parse Astro template references).
+
+## Commit Standards
+
+This project uses **conventional commits** enforced by commitlint + lefthook.
+
+Format: `type(scope): subject`
+
+**Types:** feat, fix, docs, style, refactor, perf, test, build, ci, chore, revert
+
+**Scopes:** page, style, config, deps (custom scopes allowed)
+
+```bash
+bun run commit    # Guided commit via commitizen (cz-git)
+```
+
+Do not include co-author lines or "Generated by" attributions in commit messages.
+
+## Git Hooks (Lefthook)
+
+- **pre-commit:** Biome check on staged files
+- **commit-msg:** Commitlint validation
+- **pre-push:** Full build
+
+## Design Tokens
+
+Colors, typography, and spacing are defined as CSS custom properties in `Layout.astro`:
+
+- **Colors:** cream (#F5F0EB), dusty-rose (#C48B8B), slate-blue (#8A9BB5), navy (#1A1F2E)
+- **Fonts:** `neue-haas-grotesk-display` (body, weight 500), `meno-text` (display/headings) via Typekit
+- **Spacing/type:** Fluid scales using `clamp()`
+
+## Environment Variables
+
+- `PUBLIC_SIGNUP_ENDPOINT` — Form submission endpoint (defaults to `/api/signup`). See `.env.example`.
+
+## Key Patterns
+
+- All scroll animations use `.reveal` class + IntersectionObserver (threshold 0.1, -40px root margin)
+- Hero animations are CSS-only with staggered delays via `--i` custom property
+- `prefers-reduced-motion` is detected via inline script and disables all animations via `.reduce-motion` class
+- Form handler uses progressive enhancement — works as standard POST without JS