Reveal Card

Purpose

Media fills the frame; title and description live in a caption that slides up over it on hover instead of sitting below it. On a device with no hover, the caption is simply always visible, anchored to the bottom.

Good for

• photography-led previews where the caption is secondary to the image

Avoid for

• content where the description needs to be readable at a glance without any interaction on every device, hover or not — use Media Card, whose caption never depends on interaction state

Recommended defaults

Don't put anything in title/description that's load-bearing for understanding the image on a hover device before the caption opens — a sighted mouse user sees the bare image first, same as a touch user always sees the caption. If the caption content is essential, Media Card is the safer default.

Accessibility

• The hover/touch split is read live via usePointerCapability, never a screen-width guess — this is the same fix this repo's Mask Reveal bug got: a hover-only reveal with no pre-tap event is unreachable content on touch, not a lesser experience, so touch gets "reveal is already open," never "tap to reveal" (a double-tap trap when the card is also a link).
• The caption also opens on keyboard focus (group-focus-visible), not hover alone.

Performance

The slide-up is a CSS transform/opacity transition, skipped under prefers-reduced-motion: reduce — on a hover device the caption still opens, just instantly instead of sliding.

Composition

The family's shared shape lives in docs/card-api-conventions.md — read that once, not per card.