I need a lightweight, web-based text editor template that I can drop straight into my site. The core requirement is a reliable auto-save function so every keystroke (or a short timed interval) is stored locally or via an API endpoint without user interaction. What I expect: • Clean HTML, CSS and vanilla JavaScript (or a small, well-documented library) implementing the editor area. • Auto-save logic with clear hooks so I can swap in my own storage method—localStorage by default is fine, a simple POST demo is a bonus. • Straightforward setup instructions inside a README plus inline code comments. Extras such as syntax highlighting or real-time collaboration are not required right now, but please structure the code so I can extend it later if I choose to add those features. Keep the design minimal, responsive and compatible with modern browsers. I’m aiming for a concise template I can brand and build on, so focus on clarity and modularity.