Initial commit: Next.js 15 starter template with Supabase integration

- Complete project setup with TypeScript and Tailwind CSS
- Responsive landing page components with animations
- Dark/light theme support with system preference detection
- Supabase integration ready for authentication and database
- Email capture functionality with marketing integrations
- Comprehensive documentation and deployment guides
- GitHub workflows and contribution guidelines

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: vadim-vozmitsel-cascaide

.env.example

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+# Supabase
+NEXT_PUBLIC_SUPABASE_URL=your_supabase_url
+NEXT_PUBLIC_SUPABASE_ANON_KEY=your_supabase_anon_key
+SUPABASE_SERVICE_ROLE_KEY=your_supabase_service_role_key
+
+# Sentry Error Tracking
+SENTRY_DSN=your_sentry_dsn
+NEXT_PUBLIC_SENTRY_DSN=your_sentry_dsn
+SENTRY_ORG=your_sentry_org
+SENTRY_PROJECT=your_sentry_project
+SENTRY_AUTH_TOKEN=your_sentry_auth_token
+
+# Vercel
+VERCEL_TOKEN=your_vercel_token
+VERCEL_ORG_ID=your_vercel_org_id
+VERCEL_PROJECT_ID=your_vercel_project_id
+
+# Site Configuration
+NEXT_PUBLIC_SITE_URL=http://localhost:3000
+
+# Analytics (Optional)
+NEXT_PUBLIC_GA_MEASUREMENT_ID=your_ga_measurement_id
+NEXT_PUBLIC_POSTHOG_KEY=your_posthog_key
+NEXT_PUBLIC_POSTHOG_HOST=https://app.posthog.com
+
+# Environment
+NODE_ENV=development
+NEXT_PUBLIC_VERCEL_ENV=development
+NEXT_PUBLIC_VERCEL_GIT_COMMIT_SHA=local
+
+# Security
+RATE_LIMIT_API_KEY=your_rate_limit_key
+
+# Feature Flags (Optional)
+NEXT_PUBLIC_LAUNCHDARKLY_CLIENT_ID=your_launchdarkly_client_id
+
+# Monitoring (Optional)  
+NEW_RELIC_APP_NAME=your_app_name
+NEW_RELIC_LICENSE_KEY=your_new_relic_key

.eslintrc.json

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+{
+  "extends": ["next/core-web-vitals", "next/typescript"],
+  "rules": {
+    "@typescript-eslint/no-unused-vars": "error",
+    "@typescript-eslint/no-explicit-any": "warn",
+    "react/no-unescaped-entities": "off",
+    "import/order": "off",
+    "no-console": ["warn", { "allow": ["warn", "error"] }],
+    "@next/next/no-img-element": "off"
+  }
+}

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Create a report to help us improve
+title: '[BUG] '
+labels: 'bug'
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Environment (please complete the following information):**
+- OS: [e.g. iOS]
+- Browser [e.g. chrome, safari]
+- Version [e.g. 22]
+- Node.js version [e.g. 18.17.0]
+- npm/yarn version [e.g. 9.6.7]
+
+**Additional context**
+Add any other context about the problem here.
+
+**Error Logs**
+```
+Paste any error logs or console output here
+```

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature Request
+about: Suggest an idea for this project
+title: '[FEATURE] '
+labels: 'enhancement'
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
+
+**Would you be willing to contribute this feature?**
+- [ ] Yes, I'd like to implement this feature
+- [ ] I'd like to help but need guidance
+- [ ] I can test the feature when it's ready
+- [ ] No, just suggesting the idea

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

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+## Description
+
+Brief description of what this PR does.
+
+## Type of Change
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Documentation update
+- [ ] Code refactoring
+- [ ] Performance improvement
+- [ ] Other (please describe):
+
+## How Has This Been Tested?
+
+Please describe the tests that you ran to verify your changes:
+
+- [ ] Unit tests
+- [ ] Integration tests
+- [ ] Manual testing
+- [ ] Browser testing (Chrome, Firefox, Safari, etc.)
+- [ ] Mobile testing
+
+## Screenshots (if applicable)
+
+Add screenshots to help explain your changes.
+
+## Checklist
+
+- [ ] My code follows the style guidelines of this project
+- [ ] I have performed a self-review of my own code
+- [ ] I have commented my code, particularly in hard-to-understand areas
+- [ ] I have made corresponding changes to the documentation
+- [ ] My changes generate no new warnings
+- [ ] I have added tests that prove my fix is effective or that my feature works
+- [ ] New and existing unit tests pass locally with my changes
+- [ ] Any dependent changes have been merged and published
+
+## Additional Notes
+
+Add any other notes about the pull request here.

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [18.x, 20.x]
+
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+    
+    - name: Install dependencies
+      run: npm ci
+    
+    - name: Run type checking
+      run: npm run typecheck
+    
+    - name: Run linting
+      run: npm run lint
+    
+    - name: Run tests
+      run: npm test
+    
+    - name: Build project
+      run: npm run build
+      
+    - name: Upload build artifacts
+      uses: actions/upload-artifact@v4
+      if: matrix.node-version == '20.x'
+      with:
+        name: build-files
+        path: .next/
+        retention-days: 1