Poor Text Visibility in Dark Mode for “Retweet to Claim a Prize” Section

Summary
On the giveaway site (https://giveaway.didwallet.io/en), when using dark mode, the text under “What is Retweet to Claim a Prize?” is not readable due to poor color contrast with the background.
Steps to Reproduce
Open a browser and go to: https://giveaway.didwallet.io/en .
Enable Dark Mode (either system-wide or site toggle if available).
Scroll to the FAQ section → “What is Retweet to Claim a Prize?”.
Observe the text color against the dark background.
Expected Result
Text should have sufficient contrast against the background in dark mode (e.g., light-colored text on dark background).
Content should remain easily readable regardless of theme.
Actual Result
Text is too dark / low contrast in dark mode.
Content is very difficult or impossible to read without switching back to light mode.
Impact
Accessibility issue: Users with vision difficulties cannot read content.
Poor user experience: Forces users to disable dark mode to access information.
Potential WCAG 2.1 violation (contrast ratio requirement).