Interface Lab
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Interaction Responsive Motion

Card and Panel Density Affordance

Cards represent objects, panels represent tools or context; they need different density and affordance.

Design Principle

Clickable objects must be recognizable, while informational containers should not masquerade as buttons.

Principle

Clickable objects must be recognizable, while informational containers should not masquerade as buttons.

Design action

Clickable cards need hover/focus and a clear main link; tool panels need stable header, controls, and status area without decorative nested cards.

Examples

Positive example: Resource libraries, knowledge lists, moderation queues, and detail sidebars. Counterexample: The whole card is clickable but lacks hover/focus.

Apply when

Resource libraries, knowledge lists, moderation queues, and detail sidebars. Cards contain several sub-actions.

Source notes

Source note: Synthesized from Apple HIG, Material Design, GOV.UK/Polaris/Atlassian component practices, and interaction accessibility principles. Apple HIG Motion: https://developer.apple.com/design/human-interface-guidelines/motion Material Design Motion: https://m3.material.io/styles/motion/overview/how-it-works GOV.UK Design System Patterns: https://design-system.service.gov.uk/patterns/ Shopify Polaris Patterns: https://polaris-react.shopify.com/patterns Atlassian Empty State: https://atlassian.design/components/empty-state

Agent Directive

Clickable cards need hover/focus and a clear main link; tool panels need stable header, controls, and status area without decorative nested cards.