fix(spinner): fix variant spinner animation

[yurkimus]

Closes

• Problem in absence of --bar-index variable within the delay of fade-out animation in component Spinner of variant spinner #5577

📝 Description

⛳️ Current behavior (updates)

🚀 New behavior

💣 Is this a breaking change (Yes/No):

📝 Additional Information

Summary by CodeRabbit

• Style
  • Updated the "fade-out" animation to introduce a staggered delay, creating a cascading effect based on each element’s index.

[changeset-bot]

⚠️ No Changeset found

Latest commit: df74a0a

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[coderabbitai]

Walkthrough

The "fade-out" animation in the animation definitions was updated to use a dynamic delay based on the CSS variable --bar-index, replacing the previous fixed delay. No other animation parameters or exported/public entities were changed.

Changes

Cohort / File(s)	Change Summary
Fade-out Animation Delay Update packages/core/theme/src/animations/index.ts	Modified "fade-out" animation to use calc(var(--bar-index) * 100ms) for animation delay instead of 0s.

Sequence Diagram(s)

sequenceDiagram
    participant CSS
    participant DOM_Element

    CSS->>DOM_Element: Apply "fade-out" animation with delay calc(var(--bar-index) * 100ms)
    Note right of DOM_Element: Animation starts staggered based on --bar-index value

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Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Assessment against linked issues

Objective	Addressed	Explanation
Add --bar-index variable to "fade-out" animation delay (#5577)	✅

Assessment against linked issues: Out-of-scope changes

No out-of-scope changes found.

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

packages/core/theme/src/animations/index.ts (1)

9-9: Fix looks correct; consider trimming redundant tokens for consistency.

The updated shorthand now correctly injects the dynamic delay, resolving #5577.
However, unlike the other animation strings in this object (e.g. "spinner-spin 0.8s ease infinite"), this one explicitly lists the default direction, fill-mode, and play-state (normal none running). They are super­fluous because those values are the browser defaults; keeping them inflates bundle size and introduces style‐guide inconsistency.

-"fade-out": "fade-out 1.2s linear calc(var(--bar-index) * 100ms) infinite normal none running",
+"fade-out": "fade-out 1.2s linear calc(var(--bar-index) * 100ms) infinite",

Optional, but worth aligning with the rest of the file.

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📥 Commits

Reviewing files that changed from the base of the PR and between a8b1c85 and df74a0a.

📒 Files selected for processing (1)

• packages/core/theme/src/animations/index.ts (1 hunks)