[cmpadden]

Summary

• Lead each talk entry with the presentation title and place the event underneath, including the latest event-text styling tweaks.
• Match homepage section-heading and title typography, sharing the UTC date formatter with blog cards.
• Display uppercase SLIDES, VIDEO, and SOURCE links beside titles with orange brackets, wrapping on smaller screens.
• Open resource links in new tabs with accessible labels and keyboard-focus styling.
• Match the sticky header offset to the 12px frame so the menu does not move upward when scrolling.

Validation

• pnpm typecheck for the talks refresh.
• Prettier and diff checks pass.
• Visually reviewed desktop/light and mobile/dark layouts during iteration.
• Manually checked menu coordinates on home and talks pages: the button remains 32px from the viewport top across scroll positions.
• No new tests added, as requested.