FeedbackGlass surface
Alert
Surfaces contextual status messages.
01
See it and copy it
Framework example
Choose Astro, React, or Elements to compare native usage against the shared visual output. Each example assumes the framework-level setup is already complete.
Framework usage
Switch targets to compare the adapter code. The preview stays visually stable because all three packages share the same tokens andui-* class contract.---
import { Alert } from '@santi020k/lumen-astro'
---
<Alert>
<strong>Project synced.</strong>
<p>Your design tokens are up to date.</p>
</Alert>
<Alert variant="success">
<strong>Deployed.</strong>
<p>lumen-docs is live in production.</p>
</Alert>
<Alert variant="warning">
<strong>Certificate expiring.</strong>
<p>Renew the custom domain certificate within 7 days.</p>
</Alert>
<Alert variant="destructive">
<strong>Build failed.</strong>
<p>Type error in Button.astro — deploy blocked.</p>
</Alert>import { Alert } from '@santi020k/lumen-react'
export const Example = () => (
<>
<Alert>
<strong>Project synced.</strong>
<p>Your design tokens are up to date.</p>
</Alert>
<Alert variant="success">
<strong>Deployed.</strong>
<p>lumen-docs is live in production.</p>
</Alert>
<Alert variant="warning">
<strong>Certificate expiring.</strong>
<p>Renew the custom domain certificate within 7 days.</p>
</Alert>
<Alert variant="destructive">
<strong>Build failed.</strong>
<p>Type error in Button.astro — deploy blocked.</p>
</Alert>
</>
)<script type="module">
import { defineLumenElements } from '@santi020k/lumen-elements/define'
defineLumenElements()
</script>
<lumen-alert>
<strong>Project synced.</strong>
<p>Your design tokens are up to date.</p>
</lumen-alert>
<lumen-alert variant="success">
<strong>Deployed.</strong>
<p>lumen-docs is live in production.</p>
</lumen-alert>
<lumen-alert variant="warning">
<strong>Certificate expiring.</strong>
<p>Renew the custom domain certificate within 7 days.</p>
</lumen-alert>
<lumen-alert variant="destructive">
<strong>Build failed.</strong>
<p>Type error in Button.astro — deploy blocked.</p>
</lumen-alert>02
Choose your target
Add this component
Choose the package for your runtime. All adapters share the Lumen stylesheet. Use the matching registry command when you want a local wrapper for that framework.
pnpm add @santi020k/lumen-astropnpm add @santi020k/lumen-astrolumen add Alertlumen add Alertpnpm add @santi020k/lumen-reactpnpm add @santi020k/lumen-reactlumen add Alert --target reactlumen add Alert --target reactpnpm add @santi020k/lumen-elementspnpm add @santi020k/lumen-elementslumen add Alert --target elementslumen add Alert --target elementsGlass
Add the glass prop to apply the shared blur, saturation, border, and highlight tokens. Glass reads best over vivid content, so place the surface above imagery or color.
Framework usage
Switch targets to compare the adapter code. The preview stays visually stable because all three packages share the same tokens andui-* class contract.---
import { Alert } from '@santi020k/lumen-astro'
---
<div class="docs-glass-demo docs-glass-demo--stack">
<Alert glass>
<strong>Glass tokens synced.</strong>
<p>Blur, saturation, specular edge, and shadow values come from the shared theme contract.</p>
</Alert>
<Alert variant="success" glass>
<strong>Deployed to production.</strong>
<p>Status variants keep their tint on top of the frosted surface.</p>
</Alert>
</div>import { Alert } from '@santi020k/lumen-react'
export const Example = () => (
<>
<div className="docs-glass-demo docs-glass-demo--stack">
<Alert glass>
<strong>Glass tokens synced.</strong>
<p>Blur, saturation, specular edge, and shadow values come from the shared theme contract.</p>
</Alert>
<Alert variant="success" glass>
<strong>Deployed to production.</strong>
<p>Status variants keep their tint on top of the frosted surface.</p>
</Alert>
</div>
</>
)<script type="module">
import { defineLumenElements } from '@santi020k/lumen-elements/define'
defineLumenElements()
</script>
<div class="docs-glass-demo docs-glass-demo--stack">
<lumen-alert glass>
<strong>Glass tokens synced.</strong>
<p>Blur, saturation, specular edge, and shadow values come from the shared theme contract.</p>
</lumen-alert>
<lumen-alert variant="success" glass>
<strong>Deployed to production.</strong>
<p>Status variants keep their tint on top of the frosted surface.</p>
</lumen-alert>
</div>API reference
Lumen-specific props and runtime attributes for the Astro primitive. React props follow the same names; Elements use equivalent kebab-case attributes where custom elements expose them.
| Attribute | Values | Default | Description |
|---|---|---|---|
| glass | boolean | "subtle" | "strong" | false | Applies the tokenized liquid-glass surface treatment with backdrop-filter fallbacks; "subtle" and "strong" adjust the fill intensity. |
| variant | "default" | "destructive" | "success" | "warning" | "default" | Controls the alert tone. |
| class, className | string | "" | Merges custom classes with the generated ui-* root classes. |
| ...native attributes | HTML attributes | - | Forwards standard attributes to the root element unless the component consumes them. |