Polish project card UI

[replakcan]

Description

Improve the visual design and readability of project cards.

Scope

• Improve spacing
• Improve typography
• Improve tech stack badges
• Improve link styling
• Improve responsive behavior

Out of Scope

• Project detail page implementation
• Filtering/search
• Major redesign

Acceptance Criteria

• Project cards look clean on desktop
• Project cards look clean on mobile
• Tech stack is easy to scan
• Links are visible and accessible
• Cards remain consistent with site design
• npm run build succeeds

Technical Notes

• Keep UI simple and professional.

Related

• Depends on: Build projects listing page