Motion craft

State feedback remains understandable when motion is reduced or unavailable. A default state should not animate merely because enhancement mounted.

Occasional contextual icon changes can overlap glyphs in a stable cell and fade opacity. One specimen uses 150ms ease-out with reserved label space. Preserve project timing where established; scale and blur are optional.

Typing, row hover and tabs need direct feedback. Reserve expressive motion for moments that benefit from it. Gate hover-only effects by hover-capable pointers.

Test open/close with another activation during movement. CSS transitions can retarget the current interpolated value. A fixed keyframe replay often restarts at its authored endpoint; timeline animation can also reverse with explicit playback control. Explain the actual implementation, not an absolute claim about all keyframes.

Hold distance, duration and easing constant in comparisons. Check a controlled intermediate reversal as well as rapid real input; two running samples can naturally differ by a frame.

Staged first entrances may group heading, copy and actions. Exits usually need less travel and attention. Do not stagger routine updates. Name changing properties instead of all; add compositing hints only after observing a need.

A gradient cannot interpolate: a background transition from a gradient face to a solid one drops the image at once and fades the color in from transparent, so the face flashes through for a frame. Swap faces without a transition and ease shadow depth, travel and foreground color instead; keep a solid color under any gradient face, and check the change in both directions.

Honor reduced motion by removing unnecessary travel, scale and blur while retaining state and a static/opacity cue. Test initial render, keyboard, touch, rapid changes and disabled activation. Theme swaps should not accidentally trigger unrelated page-wide transitions.

Disabling transition or animation alone can leave an immediate hover transform. Inspect the resulting state too: suppress unnecessary arrow travel or image scale while preserving a meaningful resting direction and non-motion feedback.

#Identity across states

Keep an item's name, position and structural role traceable as it moves from waiting to processing to completion. Update the status cue and relevant progress without replacing the item's identity or jumping focus. If a real product intentionally reorders completed items, make the transition and destination understandable; a stable-position example is not a prohibition on sorting.

When comparing states, hold the name, icon cell and row geometry constant. A progress bar that advances while the filename also changes demonstrates two variables, so it cannot isolate continuity. Verify the behavior under asynchronous updates and reduced motion, not only in three static screenshots.