Create Study Note landing page with interactive chat preview

[BotPlayerAI]

Summary

• add a single-page Study Note interface with hero, features, testimonials, and calls to action
• style the experience with a modern gradient theme and responsive layout
• implement a lightweight chat preview that simulates Study Note replies based on learner topics

Testing

• No automated tests were run (not applicable)

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https://chatgpt.com/codex/tasks/task_e_68f5695eb9c0832db8bfdda6652affa3

[gemini-code-assist]

Summary of Changes

Hello @BotPlayerAI, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request delivers a brand new, comprehensive landing page for the 'Study Note' AI learning companion concept. The page is designed with a modern aesthetic, utilizing a gradient theme and responsive layout to ensure a consistent user experience across devices. A key interactive component is the chat preview, which dynamically simulates responses from the AI mentor, offering visitors a glimpse into the product's capabilities and value proposition.

Highlights

• New Landing Page: Introduced a complete single-page landing interface for 'Study Note', featuring a hero section, key features, user testimonials, and calls to action.
• Interactive Chat Preview: Implemented a lightweight, interactive chat preview that simulates AI mentor replies based on user input, demonstrating the core functionality of Study Note.
• Modern Design and Responsiveness: Styled the entire experience with a modern gradient theme and ensured a fully responsive layout for various screen sizes.
• Updated Documentation: The README.md file has been updated to reflect the project's purpose and provide clear instructions for getting started.

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[gemini-code-assist]

Code Review

This pull request introduces a new landing page for Study Note, including the HTML structure, styling, and interactive JavaScript for a chat preview. The code is well-structured and the design is modern and responsive. My review includes a few suggestions to enhance accessibility in the HTML and improve the maintainability and readability of the JavaScript code.

[gemini-code-assist]

For improved accessibility, alt text should be more descriptive. Instead of just the person's name, describe the image, for example, 'Headshot of...'. This provides better context for users of screen readers.

Suggested change

	<img src="https://i.pravatar.cc/80?img=15" alt="Jordan" />
	<img src="https://i.pravatar.cc/80?img=15" alt="Headshot of Jordan Harper" />

[gemini-code-assist]

For improved accessibility, alt text should be more descriptive. Instead of just the person's name, describe the image, for example, 'Headshot of...'. This provides better context for users of screen readers.

Suggested change

	<img src="https://i.pravatar.cc/80?img=30" alt="Priya" />
	<img src="https://i.pravatar.cc/80?img=30" alt="Headshot of Priya Iyer" />

[gemini-code-assist]

The variable name label can be a bit confusing as <label> is a specific HTML element with its own semantics. Renaming it to something like authorLabel would improve code clarity and avoid potential confusion for future maintainers.

Suggested change

	const label = document.createElement('span');
	label.className = 'label';
	label.textContent = author === 'assistant' ? 'Study Note' : 'You';
	const content = document.createElement('p');
	content.textContent = text;
	wrapper.appendChild(label);
	wrapper.appendChild(content);
	const authorLabel = document.createElement('span');
	authorLabel.className = 'label';
	authorLabel.textContent = author === 'assistant' ? 'Study Note' : 'You';
	const content = document.createElement('p');
	content.textContent = text;
	wrapper.appendChild(authorLabel);
	wrapper.appendChild(content);

[gemini-code-assist]

The hardcoded timeout value of 450 is a 'magic number'. It's a good practice to extract it into a named constant at the top of the file (e.g., const ASSISTANT_REPLY_DELAY = 450;). This improves readability and makes it easier to change the value in the future.