fix: improve stock card hover contrast

[Ambu-2005]

Pull Request for Stock Analyzer

Thank you for contributing to the Stock Analyzer open-source project!

Issue Title

[BUG] Card text becomes unreadable on hover in dark mode

Contributor Details

• Name: Ambadas Kamainor
• GitHub ID: Ambu-2005
• LinkedIn Username (for appreciation): ambadas-kamainor
• LinkedIn Profile URL (for verification): https://www.linkedin.com/in/ambadas-kamainor
• Email ID (for communication): ambadaskamainor@gmail.com
• Participation Program (if any): OSCI'26

Closes

Closes #230

Describe Your Changes

• Improved stock card text contrast when hovering in dark mode.
• Ensured stock symbols and company names remain clearly readable on hover.
• Used the existing --color-text theme variable for consistent text colors.

Screenshots

Dark mode stock cards were tested locally. The stock symbol and company name are clearly readable when hovering over a card.

what are the files you have changed

• src/components/StockList.module.css

How Has This Been Tested?

• Ran the Stock Analyzer locally using npm start.
• Tested the stock cards in dark mode.
• Hovered over stock cards including SBIN.NS.
• Verified that the stock symbol and company name remain readable on hover.
• Confirmed the changes only affect the intended stock card hover styling.

Type of Change

• Bug fix (fixes an existing issue)
• New feature (adds new functionality)
• Code style update (formatting, refactoring)
• Breaking change (may affect existing features)
• Documentation update

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Checklist

• My code follows the project’s guidelines and best practices.
• I have performed a self-review of my code.
• I have added meaningful comments where necessary.
• I have updated documentation wherever applicable.
• My changes do not generate any new warnings or errors.
• I have included screenshots, graphs, or test logs (if applicable).
• Any dependent changes have been merged and documented.

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Thank you for helping improve Stock Analyzer!

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