The user wants an HTML code that uses an AI API (likely for some AI interaction) but with the API key or endpoint left empty (not filled in). The code should be a complete single HTML file with inline CSS and JavaScript to demonstrate how to use the API, showing a user interface for input and output.
I will create a modern, visually appealing, mobile responsive single HTML page that includes:
- A text input area where the user can enter a query.
- A button to submit the query.
- An output area to show the AI response.
- JavaScript that calls an API endpoint, with the URL and API key placeholders left empty for the user to fill.
- The UI will be styled to look modern and cool.
- Mobile responsiveness will be ensured, fitting within 600px height and 350px width.
- The app will have a loading indicator while waiting for the API.
This will be a general AI text interaction example. The API call in JS will be a placeholder with an empty URL and a placeholder for API_KEY.
Plan:
- One file: ai-app.html
- Inline CSS in