The contrast between active and inactive dates within the same month in the Date-Picker is too low. This makes it hard for users to see which dates are selectable when certain restrictions apply (e.g., unavailable or out-of-range dates).

This issue does not concern dates from previous or next months — it specifically affects inactive dates within the current month.

Expected behavior:
Inactive dates should have a clear, accessible visual difference from active dates (e.g., via color or opacity).

Acceptance criteria:

• Higher contrast between active and inactive dates (WCAG-compliant).
• Consistent appearance across light and dark themes.
• Display of other-month dates remains unchanged.