diff --git a/src/uix/eidos/components/code-block/README.md b/src/uix/eidos/components/code-block/README.md
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+# Eidos CodeBlock
+
+Multi-line code block primitive. Renders a `<div>` shell wrapping a
+`<pre><code>` body, with an optional header strip carrying a title,
+a language badge, and a copy-to-clipboard button. The copy button is
+a leaf utility — it does not emit Sema events.
+
+## Superficie
+
+```svelte
+<CodeBlock language="ts" title="example.ts">
+  {`const x = 1;
+console.log(x);`}
+</CodeBlock>
+
+<CodeBlock variant="outline" showCopy={false} language="bash">
+  {`npm run dev`}
+</CodeBlock>
+
+<CodeBlock variant="ghost">
+  {`Plain block with no chrome.`}
+</CodeBlock>
+```
+
+## Baseline
+
+Origen: `air/components/typography/code-block` (rama `morfo-runtime`).
+Adaptaciones para eidos:
+
+- **Separated from `<Code>`**: air shipped a `variant='block'` on
+  `<Code>`. Eidos splits them so the inline and block APIs stay
+  independent.
+- **`filename` → `title`**: generic name — the slot accepts whatever
+  label fits (file name, hostname, label, etc.).
+- **`copyable` → `showCopy`**: aligns with composition-over-visibility
+  ergonomics (the prop controls whether the button is included).
+- **Translator removed**: button labels are inline literal strings
+  ("Copy" / "Copied"). If localization is needed later, expose a
+  snippet-based slot.
+- **Variants added**: `surface` (default, filled), `outline`
+  (transparent + border), `ghost` (no chrome). Air had only one
+  visual treatment.
+- **Sizes**: air `1..12` → eidos `xxs..xl` via foundation tokens.
+- **Tokens**: `--air-code-block-*` → consume the foundation directly
+  (`--style-code-*`, `--color-neutral-*`, `--space-{n}`, `--radius-*`).
+
+## Comparativa
+
+| Capacidad | UIX CodeBlock | Radix Themes CodeBlock | Chakra | Mantine CodeHighlight |
+| --- | --- | --- | --- | --- |
+| Header (title + lang badge) | Sí | No (one component) | composable | Sí |
+| Copy button | Sí (`showCopy`) | No | composable | Sí (`withCopyButton`) |
+| Variants | surface / outline / ghost | size + variant | colorScheme | filled / outline |
+| Language hint | Sí (`language`) | No | No | Sí |
+| Syntax highlighting | No (reserved) | No | No | Sí (Shiki) |
+| Size override | Sí | Sí | Sí | Sí |
+| Line numbers | No | No | composable | Sí |
+
+## Decisiones
+
+- **Copy is a button, not a Sema event**: copy belongs to the
+  "utility" tier (clipboard write, no semantic transition). If a
+  consumer wants a celebrate-on-copy sound they can compose the
+  block inside a Toast affordance — the block itself stays passive.
+- **Showed copy by default**: docs are the dominant use case;
+  removing the button is the opt-out.
+- **Variant `surface` default**: filled neutral matches the
+  most-common docs look. `outline` for embedded contexts (inside a
+  Banner or Note), `ghost` for sub-component embedding.
+- **No syntax highlighting in core**: stamped `data-language` on the
+  inner `<code>` so a Shiki/Prism action can hydrate later without
+  re-rendering the block.
+- **Tokens come from the foundation directly**: no per-component
+  `--code-block-*` aliases unless a real consumer drift emerges. The
+  recipe references `--style-code-*` and `--color-neutral-*`.
+
+## Eventos Sema
+
+CodeBlock declara 0 eventos. La copy button es una utility leaf, no
+evento semántico — copying not a transition the user "feels"
+beyond a brief affordance flip ("Copy" → "Copied"). Si surge un caso
+donde copy debe disparar sema (e.g. fulfilment of a tutorial step), el
+consumer compone CodeBlock dentro de un componente con sema (Form
+step, Stepper item) que posee el verbo `commit-fulfill`.
+
+## Gaps
+
+| Gap | Disposición | Detalle |
+| --- | --- | --- |
+| Syntax highlighting | **diferir** | Reservado vía `language` + `data-language`. Integración Shiki / Prism vía Svelte action separada. |
+| Line numbers | **diferir** | UI cosmético. Si emerge, añadir como `showLineNumbers` prop. |
+| Per-line diff (added/removed) | **diferir** | Complementa highlighting. Bajo prioridad. |
+| Translatable copy button labels | **diferir** | Hoy son literales. Si surge i18n requirement, exponer slot custom. |
+| Custom copy handler | **diferir** | `onclick` handler today; un `oncopy` prop puede llegar si emerge un caso real. |
+| Sema event on copy | **descartar** | Copy es utility leaf, no verbo perceptivo del primitive. |
+
+## Referencias
+
+- Radix Themes Code: https://www.radix-ui.com/themes/docs/components/code
+- Mantine CodeHighlight: https://mantine.dev/x/code-highlight/
+- Chakra UI Code (block usage): https://chakra-ui.com/docs/components/code
+- shadcn/ui block patterns: https://ui.shadcn.com/
+
+## Passive justification
+
+`scope: ['eidos']` — visual-only primitive. The morfo declares a
+single Provider part (`[data-code-block]`). The copy button is a
+recipe-internal leaf that exists only in eidos; per the 2-of-3 rule
+(only one layer would consume a `commit-copy` event) it stays out
+of the morfo contract. The block has no perceptual transitions
+beyond the brief "Copy → Copied" flip handled in local component
+state.
diff --git a/src/uix/eidos/components/code-block/code-block.css b/src/uix/eidos/components/code-block/code-block.css
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+/*
+ * CodeBlock recipe — multi-line code block with optional header.
+ *
+ * Variants:
+ *   - `surface` filled with neutral element bg + border
+ *   - `outline` transparent fill, border only
+ *   - `ghost`   transparent shell, no border (for sub-component embedding)
+ */
+
+[data-code-block] {
+	position: relative;
+	display: flex;
+	flex-direction: column;
+	border-radius: var(--radius-md);
+	overflow: hidden;
+	color: var(--color-content-primary);
+}
+
+[data-code-block][data-variant='surface'] {
+	background: var(--color-neutral-element);
+	border: 1px solid var(--color-neutral-border);
+}
+
+[data-code-block][data-variant='outline'] {
+	background: transparent;
+	border: 1px solid var(--color-neutral-border);
+}
+
+[data-code-block][data-variant='ghost'] {
+	background: transparent;
+	border: 0;
+}
+
+[data-code-block-header] {
+	display: flex;
+	align-items: center;
+	gap: var(--space-2);
+	padding-inline: var(--space-3);
+	padding-block: var(--space-1);
+	border-bottom: 1px solid var(--color-neutral-border);
+	background: var(--color-neutral-track);
+}
+
+[data-code-block][data-variant='ghost'] [data-code-block-header] {
+	background: transparent;
+	border-bottom-color: var(--color-neutral-border);
+}
+
+[data-code-block-title] {
+	flex: 1 1 auto;
+	min-inline-size: 0;
+	font-family: var(--font-family-mono);
+	font-size: var(--font-size-xs);
+	color: var(--color-content-secondary);
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+}
+
+[data-code-block-lang] {
+	font-family: var(--font-family-mono);
+	font-size: var(--font-size-xxs);
+	color: var(--color-content-muted);
+	text-transform: lowercase;
+	letter-spacing: 0.04em;
+	white-space: nowrap;
+}
+
+/* When there is no title, the lang badge stays at the start. When both
+ * exist, the title takes the flex slot and the lang sits next to it.
+ */
+[data-code-block-header]:not(:has([data-code-block-title])) [data-code-block-lang] {
+	margin-inline-end: auto;
+}
+
+[data-code-block-copy] {
+	appearance: none;
+	font: inherit;
+	font-family: var(--font-family-mono);
+	font-size: var(--font-size-xs);
+	color: var(--color-content-secondary);
+	background: transparent;
+	border: 1px solid var(--color-neutral-border);
+	border-radius: var(--radius-sm);
+	padding-inline: var(--space-2);
+	padding-block: 2px;
+	cursor: pointer;
+	white-space: nowrap;
+	transition:
+		background 120ms ease,
+		border-color 120ms ease,
+		color 120ms ease;
+}
+
+[data-code-block-copy]:hover {
+	background: var(--color-neutral-hover);
+	color: var(--color-content-primary);
+}
+
+[data-code-block-copy]:focus-visible {
+	outline: 2px solid var(--color-primary-solid);
+	outline-offset: 2px;
+}
+
+[data-code-block-copy][data-copied] {
+	color: var(--color-affirm-text);
+	border-color: var(--color-affirm-border);
+}
+
+[data-code-block-pre] {
+	margin: 0;
+	padding: var(--space-3);
+	overflow-x: auto;
+	tab-size: 2;
+}
+
+[data-code-block-code] {
+	display: block;
+	font-family: var(--style-code-font-family);
+	font-size: var(--_code-block-font-size, var(--style-code-font-size));
+	font-weight: var(--style-code-font-weight);
+	line-height: var(--_code-block-line-height, var(--style-code-line-height));
+	letter-spacing: var(--style-code-letter-spacing);
+	color: inherit;
+	background: transparent;
+}
diff --git a/src/uix/eidos/components/code-block/code-block.svelte b/src/uix/eidos/components/code-block/code-block.svelte
new file mode 100644
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+<script lang="ts">
+	/**
+	 * Eidos `<CodeBlock>` — multi-line code block.
+	 *
+	 *   <CodeBlock language="ts" title="example.ts">
+	 *     {`const x = 1;\nconsole.log(x);`}
+	 *   </CodeBlock>
+	 *
+	 * Renders a `<div data-code-block>` shell with an optional header
+	 * (title + language badge + copy button) and a `<pre><code>` inner
+	 * block. The copy button is a leaf utility — no Sema events.
+	 */
+	import { ActiveEidos } from '$uix/eidos';
+	import type { CodeBlockProps } from './types';
+
+	let {
+		title,
+		language,
+		showCopy = true,
+		variant,
+		size,
+		tagStyle,
+		class: className,
+		children,
+		...restProps
+	}: CodeBlockProps = $props();
+
+	const eidos = ActiveEidos.require();
+
+	let codeRef = $state<HTMLElement | null>(null);
+	let copied = $state(false);
+	let copyTimer: ReturnType<typeof setTimeout> | undefined;
+
+	const resolvedVariant = $derived(eidos.resolve(variant) ?? 'surface');
+	const resolvedSize = $derived(eidos.resolve(size));
+
+	function pushVar(decls: string[], name: string, value: string | undefined): void {
+		if (!value) return;
+		decls.push(`${name}: ${value};`);
+	}
+
+	const inlineStyle = $derived.by(() => {
+		const decls: string[] = [];
+		if (resolvedSize) {
+			pushVar(decls, '--_code-block-font-size', `var(--font-size-${resolvedSize})`);
+			pushVar(decls, '--_code-block-line-height', `var(--font-line-height-${resolvedSize})`);
+		}
+		const inline = decls.join(' ');
+		return [inline, tagStyle].filter(Boolean).join(' ');
+	});
+
+	const hasHeader = $derived(Boolean(title) || Boolean(language) || showCopy);
+
+	async function handleCopy() {
+		if (typeof navigator === 'undefined' || !codeRef) return;
+		const text = codeRef.textContent ?? '';
+		try {
+			await navigator.clipboard.writeText(text);
+			copied = true;
+			clearTimeout(copyTimer);
+			copyTimer = setTimeout(() => {
+				copied = false;
+			}, 1800);
+		} catch {
+			// Clipboard unavailable — keep silent. The button still fires
+			// onclick so the consumer can wire a fallback if needed.
+		}
+	}
+</script>
+
+<div
+	{...restProps}
+	class={className}
+	data-code-block=""
+	data-variant={resolvedVariant}
+	style={inlineStyle}
+>
+	{#if hasHeader}
+		<div data-code-block-header>
+			{#if title}
+				<span data-code-block-title>{title}</span>
+			{/if}
+			{#if language}
+				<span data-code-block-lang>{language}</span>
+			{/if}
+			{#if showCopy}
+				<button
+					type="button"
+					data-code-block-copy
+					data-copied={copied ? '' : undefined}
+					aria-label="Copy code to clipboard"
+					onclick={handleCopy}
+				>
+					{copied ? 'Copied' : 'Copy'}
+				</button>
+			{/if}
+		</div>
+	{/if}
+	<pre data-code-block-pre><code
+			data-code-block-code
+			data-language={language}
+			bind:this={codeRef}>{@render children?.()}</code></pre>
+</div>
diff --git a/src/uix/eidos/components/code-block/index.ts b/src/uix/eidos/components/code-block/index.ts
new file mode 100644
index 000000000..ea2fd1825
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+++ b/src/uix/eidos/components/code-block/index.ts
@@ -0,0 +1,21 @@
+// CodeBlock — eidos single-component multi-line code block.
+//
+//   import { CodeBlock } from '$uix/eidos/components/code-block';
+//
+//   <CodeBlock language="ts" title="example.ts">
+//     {`const x = 1;\nconsole.log(x);`}
+//   </CodeBlock>
+//
+// Single-component primitive — `<CodeBlock>` IS the root. Ships an
+// optional header strip (title + language badge + copy button) and a
+// `<pre><code>` inner block. The copy button is a leaf utility; it
+// does not widen the morfo's surface because only eidos consumes it.
+import CodeBlockComponent from './code-block.svelte';
+
+const CodeBlock = CodeBlockComponent;
+
+export { CodeBlock };
+
+export default CodeBlock;
+
+export type { CodeBlockProps, CodeBlockSize, CodeBlockVariant } from './types';
diff --git a/src/uix/eidos/components/code-block/types.ts b/src/uix/eidos/components/code-block/types.ts
new file mode 100644
index 000000000..4c864b046
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+++ b/src/uix/eidos/components/code-block/types.ts
@@ -0,0 +1,27 @@
+import type { Snippet } from 'svelte';
+import type { HTMLAttributes } from 'svelte/elements';
+import type { ResponsiveProp } from '$uix/eidos/lib/types';
+
+/** Discrete size scale for the block's code font. */
+export type CodeBlockSize = 'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl';
+
+/** Visual chrome. */
+export type CodeBlockVariant = 'surface' | 'outline' | 'ghost';
+
+export type CodeBlockProps = Omit<HTMLAttributes<HTMLDivElement>, 'style' | 'children' | 'title'> & {
+	/** Title shown in the header (typically a filename or label). */
+	title?: string;
+	/** Language hint shown as a badge in the header. Also stamped as `data-language` on the `<code>`. */
+	language?: string;
+	/** Render a copy-to-clipboard button in the header. @default true */
+	showCopy?: boolean;
+	/** Visual chrome variant. @default 'surface' */
+	variant?: ResponsiveProp<CodeBlockVariant>;
+	/** Code font size override. */
+	size?: ResponsiveProp<CodeBlockSize>;
+	/** Extra inline style. */
+	tagStyle?: string;
+	/** Extra class names. */
+	class?: string;
+	children?: Snippet;
+};
diff --git a/src/uix/eidos/components/code/README.md b/src/uix/eidos/components/code/README.md
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+# Eidos Code
+
+Inline monospace text primitive. Renders `<code>` by default applying
+the foundation's `--style-code-*` tokens. Sits inline within prose —
+for keywords, identifiers, file names. Multi-line code blocks use
+the separate `<CodeBlock>` primitive.
+
+## Superficie
+
+```svelte
+<p>Run <Code>npm install</Code> to install dependencies.</p>
+<p>Press <Code variant="outline" size="sm">Ctrl+K</Code> to open search.</p>
+<Code variant="soft" language="ts">readonly id: string</Code>
+```
+
+## Baseline
+
+Origen: `air/components/typography/code` (rama `morfo-runtime`).
+Adaptaciones para eidos:
+
+- **Split inline vs block**: air shipped a single `<Code>` with
+  `variant: 'inline' | 'block'`. Eidos splits them — `<Code>` is
+  inline only, `<CodeBlock>` is the multi-line surface with optional
+  copy. This matches Radix Themes' Code/CodeBlock split and avoids
+  the runtime `if (variant === 'block')` branch.
+- **Sizes**: air `1..12` → eidos `xxs..xl`. The foundation already
+  emits `--style-code-font-size` (defaults to `sm`); overrides go
+  through `var(--font-size-{key})`.
+- **Visual variant added**: `plain` (default, no chrome), `soft`
+  (subtle pill), `outline`. Air's inline was always plain; the soft
+  pill is a Radix Themes / Chakra convenience for surfacing inline
+  code from surrounding prose.
+- **Color content-role slot**: same contract as Text.
+- **`language` retained**: stamped as `data-language` for future
+  syntax-highlighting hooks. No highlighting in this version.
+
+## Comparativa
+
+| Capacidad | UIX Code | Radix Themes Code | Chakra Code | Mantine Code |
+| --- | --- | --- | --- | --- |
+| Inline-only primitive | Sí | Sí | Sí | Sí |
+| Visual variants | plain / soft / outline | size + variant (`solid` / `soft` / `outline` / `surface`) | colorScheme + variant | block boolean |
+| Size override | Sí (`size`) | Sí (`size`) | Sí (`fontSize`) | Sí (`size`) |
+| Color override | Sí (content-role) | Sí (`color`) | Sí (free) | Sí (free) |
+| Language hint | Sí (`language`, reserved) | No | No | No |
+| Syntax highlighting | No (reserved hook) | No | No | No (Mantine has separate Highlight) |
+
+## Decisiones
+
+- **`<Code>` is inline only**: matches Radix Themes' split. The block
+  surface is `<CodeBlock>` with its own chrome (copy button, header).
+  Keeps the inline primitive a single CSS rule per variant.
+- **Default variant `plain`**: respect ambient typography. The `soft`
+  pill is opt-in when the consumer wants the code to surface from
+  prose.
+- **Background uses `--color-neutral-element`**: neutral palette so
+  Code doesn't accidentally inherit `primary` tints from a colored
+  ancestor. Consumer can override with `tagStyle`.
+- **Language hint is reserved**: stamped as `data-language` so a
+  future syntax-highlighting hook (a Svelte action or a layout-level
+  hydration pass) can target `<Code[data-language]>` without
+  re-rendering the primitive.
+
+## Eventos Sema
+
+Code declara 0 eventos. Visual-only primitive — no estado interactivo.
+
+## Gaps
+
+| Gap | Disposición | Detalle |
+| --- | --- | --- |
+| Syntax highlighting | **diferir** | Reservado vía `language` prop + `data-language`. Capa de tooling separada (Shiki / Prism) integrada vía Svelte action. |
+| Click-to-copy on inline code | **descartar** | El primitive es passive. Si necesitas copy, usa `<CodeBlock>` (que ya lo lleva). |
+| Free color (hex/CSS) | **descartar** | Mantiene contrato de contraste; usar `tagStyle`. |
+| Diff coloring (added/removed line markers) | **diferir** | Pertenece a `<CodeBlock>` cuando llegue. |
+
+## Referencias
+
+- Radix Themes Code: https://www.radix-ui.com/themes/docs/components/code
+- Chakra UI Code: https://chakra-ui.com/docs/components/code
+- Mantine Code: https://mantine.dev/core/code/
+- MDN `<code>`: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/code
+
+## Passive justification
+
+Visual-only (`scope: ['eidos']`). Una sola part Provider, marker
+`[data-code]`. Sin estados, sin keyboard, sin ARIA propia (la
+semántica viene del tag `<code>` que AT entienden nativamente). La
+recipe consume `--style-code-*` del foundation + `--_code-{axis}`
+overrides inline.
diff --git a/src/uix/eidos/components/code/code.css b/src/uix/eidos/components/code/code.css
new file mode 100644
index 000000000..b7ad4e080
--- /dev/null
+++ b/src/uix/eidos/components/code/code.css
@@ -0,0 +1,38 @@
+/*
+ * Code recipe — inline monospace text.
+ *
+ * Consumes `--style-code-*` from the foundation as the base typography.
+ * The `data-variant` flag picks a chrome treatment:
+ *   - `plain`   bare mono text, inherits color
+ *   - `soft`    subtle pill with a neutral element background
+ *   - `outline` outlined pill (same shape, transparent fill)
+ *
+ * Per-axis overrides come from local `--_code-{axis}` custom properties.
+ */
+
+[data-code] {
+	font-family: var(--_code-font-family, var(--style-code-font-family));
+	font-size: var(--_code-font-size, var(--style-code-font-size));
+	font-weight: var(--_code-font-weight, var(--style-code-font-weight));
+	line-height: var(--_code-line-height, var(--style-code-line-height));
+	letter-spacing: var(--_code-letter-spacing, var(--style-code-letter-spacing));
+	color: var(--_code-color, var(--style-code-color));
+	margin: 0;
+	padding: 0;
+	background: transparent;
+	border: 0;
+	border-radius: var(--radius-sm);
+	vertical-align: baseline;
+}
+
+[data-code][data-variant='soft'] {
+	background: var(--color-neutral-element);
+	padding-inline: 0.32em;
+	padding-block: 0.1em;
+}
+
+[data-code][data-variant='outline'] {
+	border: 1px solid var(--color-neutral-border);
+	padding-inline: 0.32em;
+	padding-block: 0.1em;
+}
diff --git a/src/uix/eidos/components/code/code.svelte b/src/uix/eidos/components/code/code.svelte
new file mode 100644
index 000000000..398bfd548
--- /dev/null
+++ b/src/uix/eidos/components/code/code.svelte
@@ -0,0 +1,63 @@
+<script lang="ts">
+	/**
+	 * Eidos `<Code>` — inline monospace text.
+	 *
+	 *   <Code>const x = 1</Code>
+	 *   <Code variant="soft">npm run dev</Code>
+	 *   <Code variant="outline" size="sm">Ctrl+K</Code>
+	 *
+	 * Renders `<code>` by default, applying the foundation's
+	 * `--style-code-*` tokens. The `[data-code]` marker is the canonical
+	 * recipe selector.
+	 */
+	import { ActiveEidos } from '$uix/eidos';
+	import type { CodeProps } from './types';
+
+	let {
+		variant,
+		size,
+		color,
+		language,
+		as = 'code',
+		tagStyle,
+		class: className,
+		children,
+		...restProps
+	}: CodeProps = $props();
+
+	const eidos = ActiveEidos.require();
+
+	function pushVar(decls: string[], name: string, value: string | number | undefined): void {
+		if (value === undefined || value === null || value === '') return;
+		decls.push(`${name}: ${value};`);
+	}
+
+	const inlineStyle = $derived.by(() => {
+		const decls: string[] = [];
+		const sizeKey = eidos.resolve(size);
+		const colorKey = eidos.resolve(color);
+
+		if (sizeKey) {
+			pushVar(decls, '--_code-font-size', `var(--font-size-${sizeKey})`);
+			pushVar(decls, '--_code-line-height', `var(--font-line-height-${sizeKey})`);
+		}
+		if (colorKey) pushVar(decls, '--_code-color', `var(--color-content-${colorKey})`);
+
+		const inline = decls.join(' ');
+		return [inline, tagStyle].filter(Boolean).join(' ');
+	});
+
+	const resolvedVariant = $derived(eidos.resolve(variant) ?? 'plain');
+</script>
+
+<svelte:element
+	this={as}
+	{...restProps}
+	class={className}
+	data-code=""
+	data-variant={resolvedVariant}
+	data-language={language}
+	style={inlineStyle}
+>
+	{@render children?.()}
+</svelte:element>
diff --git a/src/uix/eidos/components/code/index.ts b/src/uix/eidos/components/code/index.ts
new file mode 100644
index 000000000..2e3b64255
--- /dev/null
+++ b/src/uix/eidos/components/code/index.ts
@@ -0,0 +1,18 @@
+// Code — eidos single-component inline monospace primitive.
+//
+//   import { Code } from '$uix/eidos/components/code';
+//
+//   <Code>const x = 1</Code>
+//   <Code variant="soft">npm run dev</Code>
+//
+// Single-component primitive — `<Code>` IS the root. Renders as
+// `<code>` by default. For multi-line blocks, use `<CodeBlock>`.
+import CodeComponent from './code.svelte';
+
+const Code = CodeComponent;
+
+export { Code };
+
+export default Code;
+
+export type { CodeProps, CodeSize, CodeVariant, CodeColor } from './types';
diff --git a/src/uix/eidos/components/code/types.ts b/src/uix/eidos/components/code/types.ts
new file mode 100644
index 000000000..1e7479211
--- /dev/null
+++ b/src/uix/eidos/components/code/types.ts
@@ -0,0 +1,39 @@
+import type { Snippet } from 'svelte';
+import type { HTMLAttributes } from 'svelte/elements';
+import type { ResponsiveProp } from '$uix/eidos/lib/types';
+
+/** Discrete size scale. */
+export type CodeSize = 'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl';
+
+/** Visual chrome. `plain` = no background (uses code font only). `soft` = subtle bg pill. `outline` = outline pill. */
+export type CodeVariant = 'plain' | 'soft' | 'outline';
+
+/** Content-role color slot. */
+export type CodeColor = 'primary' | 'secondary' | 'muted' | 'disabled' | 'on-solid';
+
+export type CodeProps = Omit<HTMLAttributes<HTMLElement>, 'style' | 'children'> & {
+	/**
+	 * Visual treatment.
+	 *   - `plain`   bare mono text, no chrome (default).
+	 *   - `soft`    subtle background pill — surfaces the inline code in prose.
+	 *   - `outline` outline pill — same shape, no fill.
+	 * @default 'plain'
+	 */
+	variant?: ResponsiveProp<CodeVariant>;
+	/** Size override. Maps to `var(--font-size-{key})` / matching line-height. */
+	size?: ResponsiveProp<CodeSize>;
+	/** Content-role color slot. */
+	color?: ResponsiveProp<CodeColor>;
+	/**
+	 * Language hint. Reserved for future syntax-highlighting extension —
+	 * stamped as `data-language` for downstream tooling.
+	 */
+	language?: string;
+	/** Render a different tag. @default 'code' */
+	as?: string;
+	/** Extra inline style. */
+	tagStyle?: string;
+	/** Extra class names. */
+	class?: string;
+	children?: Snippet;
+};
diff --git a/src/uix/eidos/components/display/README.md b/src/uix/eidos/components/display/README.md
new file mode 100644
index 000000000..9f4e9546e
--- /dev/null
+++ b/src/uix/eidos/components/display/README.md
@@ -0,0 +1,89 @@
+# Eidos Display
+
+Hero typography primitive — the page's display title (above an `<h1>`
+headline). Always uses the foundation's `--style-hero-*` tokens, which
+scale up at the `md` breakpoint. Smaller scope than Heading: a single
+visual treatment, with per-axis overrides + a deliberate `tracking`
+prop because at hero sizes letter-spacing is a design decision.
+
+## Superficie
+
+```svelte
+<Display>Welcome to UIX.</Display>
+<Display size="xxxl" weight="bold">Big.</Display>
+<Display tracking="tight" align="center">Spread.</Display>
+<Display as="p">Render display typography on a paragraph element.</Display>
+```
+
+## Baseline
+
+Origen: `air/components/typography/display` (rama `morfo-runtime`).
+Adaptaciones para eidos:
+
+- **Default tag is `<h1>`**: air defaulted to `<div>`. Display titles
+  are virtually always the document hero, so the heading semantics
+  match the most common use; the `as` prop switches the tag when
+  needed (e.g. `as="p"` for a marketing pull-quote).
+- **Single style — hero**: air carried `size` (visual paso 1..12).
+  Eidos collapses to the foundation's hero token + per-axis overrides
+  via `--font-size-{key}` aliases.
+- **`tracking` retained**: kept the explicit letter-spacing prop
+  because at 44-60px tracking is a visual decision — but air's mapped
+  to `--air-text-{n}-ls`; eidos maps to fixed em values (-0.02em /
+  0 / 0.02em) since the foundation's letter-spacing tokens are mostly
+  0 across the scale.
+- **Color content-role slot**: same contract as Text / Heading.
+
+## Comparativa
+
+| Capacidad | UIX Display | Radix Themes Heading | Chakra Heading | Mantine Title | MUI Typography |
+| --- | --- | --- | --- | --- | --- |
+| Dedicated hero primitive | Sí | No (`<Heading size="9">`) | No (use `<Heading>`) | No (use `<Title order={1}>`) | Sí (`variant="h1"`) |
+| Default tag | `<h1>` | inherits | `<h2>` | `<h1>` | `<h1>` |
+| `as` polymorphism | Sí | Sí | Sí | Sí | Sí (`component`) |
+| Tracking override | Sí (`tracking`) | No | Sí (`letterSpacing`) | Sí (`ls`) | Sí (`letterSpacing`) |
+| Size scale | xxs..xxxl override | numeric | xs..6xl | xs..xxl | h1..h6 only |
+| Family / weight / color overrides | Sí | Sí | Sí | Sí | Sí |
+| Truncate / clamp | Sí | Sí | Sí | Sí | partial |
+| Responsive defaults | Sí (md breakpoint) | Sí | Sí | partial | Sí |
+
+## Decisiones
+
+- **Always `hero` style**: that's the whole point of Display — a single
+  oversize treatment. If you want `h1`..`h6` scale, use Heading.
+- **Default tag `<h1>`**: page hero. Override via `as` when display
+  typography is needed outside heading semantics.
+- **Tracking maps to fixed em values**: the foundation's
+  `--font-letter-spacing-*` tokens are mostly 0 — they exist to
+  reserve the API but don't carry hero-scale tracking. Display
+  shortcuts past them with literal em values so the prop produces
+  visible output today.
+- **No `level` prop**: Display is always semantically a heading; if
+  the consumer needs `<h3 style="display">`, they pass `as="h3"`.
+
+## Eventos Sema
+
+Display declara 0 eventos. Como Heading/Text, es una primitiva pasiva.
+
+## Gaps
+
+| Gap | Disposición | Detalle |
+| --- | --- | --- |
+| Free hex/rgb `color` | **descartar** | Rompe contrato de contraste; usar `tagStyle`. |
+| Gradient text fill | **diferir** | Composable con `tagStyle`. Si emerge demanda, añadir `<DisplayGradient>` dedicado. |
+| Per-breakpoint custom hero responsive curve | **diferir** | Cubierto por la curva default (`hero@base`, `hero@md`); ajustes per-instance vía `size`. |
+| `tracking` mapped to foundation tokens | **diferir** | Cuando los tokens `--font-letter-spacing-*` emerjan con valores hero-apropiados, reemplazar los em literales por `var(--font-letter-spacing-{key})`. |
+
+## Referencias
+
+- Radix Themes Heading: https://www.radix-ui.com/themes/docs/components/heading
+- Chakra UI Heading: https://chakra-ui.com/docs/components/heading
+- Mantine Title: https://mantine.dev/core/title/
+- MUI Typography (h1 variant): https://mui.com/material-ui/react-typography/
+
+## Passive justification
+
+Visual-only (`scope: ['eidos']`). Una sola part Provider, marker
+`[data-display]`. Sin estados, sin keyboard, sin ARIA propia. La
+recipe consume `--style-hero-*` del foundation + `--_display-{axis}`
+overrides escritas inline.
diff --git a/src/uix/eidos/components/display/display.css b/src/uix/eidos/components/display/display.css
new file mode 100644
index 000000000..303768942
--- /dev/null
+++ b/src/uix/eidos/components/display/display.css
@@ -0,0 +1,55 @@
+/*
+ * Display recipe — hero typography primitive.
+ *
+ * Always consumes the foundation's `--style-hero-*` tokens (responsive:
+ * scales up at the `md` breakpoint to the next size step). Per-axis
+ * overrides via local `--_display-*` variables.
+ *
+ * Order of resolution:
+ *   1. Per-instance override (`--_display-{axis}`) inline by the wrapper.
+ *   2. Hero style token (`--style-hero-{axis}`) from the foundation.
+ */
+
+[data-display] {
+	font-family: var(--_display-font-family, var(--style-hero-font-family));
+	font-size: var(--_display-font-size, var(--style-hero-font-size));
+	font-weight: var(--_display-font-weight, var(--style-hero-font-weight));
+	line-height: var(--_display-line-height, var(--style-hero-line-height));
+	letter-spacing: var(--_display-letter-spacing, var(--style-hero-letter-spacing));
+	color: var(--_display-color, var(--style-hero-color));
+	text-align: var(--_display-align, inherit);
+	font-style: normal;
+	text-decoration: none;
+	margin: 0;
+	display: block;
+}
+
+[data-display][data-italic] {
+	font-style: italic;
+}
+
+[data-display][data-underline] {
+	text-decoration: underline;
+	text-underline-offset: 0.12em;
+}
+
+[data-display][data-truncate] {
+	max-inline-size: 100%;
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+}
+
+[data-display][data-clamp] {
+	display: -webkit-box;
+	-webkit-box-orient: vertical;
+	-webkit-line-clamp: var(--_display-clamp, 1);
+	line-clamp: var(--_display-clamp, 1);
+	overflow: hidden;
+}
+
+[data-display][data-clamp][data-truncate] {
+	display: -webkit-box;
+	white-space: normal;
+	text-overflow: clip;
+}
diff --git a/src/uix/eidos/components/display/display.svelte b/src/uix/eidos/components/display/display.svelte
new file mode 100644
index 000000000..8842633d6
--- /dev/null
+++ b/src/uix/eidos/components/display/display.svelte
@@ -0,0 +1,91 @@
+<script lang="ts">
+	/**
+	 * Eidos `<Display>` — hero / oversize typography primitive.
+	 *
+	 * Always uses the foundation's `--style-hero-*` tokens. Smaller scope
+	 * than Heading — for the page's "display" title above an `<h1>`
+	 * headline. Default tag is `<h1>` so it slots into the heading
+	 * hierarchy; `as` switches to non-heading tags when needed.
+	 *
+	 *   <Display>Welcome to UIX.</Display>
+	 *   <Display size="xxxl" weight="bold">Big.</Display>
+	 *   <Display tracking="tight" align="center">Spread.</Display>
+	 *
+	 * The `[data-display]` marker is the canonical selector for the recipe.
+	 */
+	import { ActiveEidos } from '$uix/eidos';
+	import type { DisplayProps } from './types';
+
+	let {
+		size,
+		family,
+		weight,
+		color,
+		align,
+		tracking,
+		italic = false,
+		underline = false,
+		truncate = false,
+		clamp,
+		as = 'h1',
+		tagStyle,
+		class: className,
+		children,
+		...restProps
+	}: DisplayProps = $props();
+
+	const eidos = ActiveEidos.require();
+
+	const TRACKING_VALUE: Record<string, string> = {
+		tight: '-0.02em',
+		normal: '0',
+		wide: '0.02em'
+	};
+
+	function pushVar(decls: string[], name: string, value: string | number | undefined): void {
+		if (value === undefined || value === null || value === '') return;
+		decls.push(`${name}: ${value};`);
+	}
+
+	const inlineStyle = $derived.by(() => {
+		const decls: string[] = [];
+		const sizeKey = eidos.resolve(size);
+		const familyKey = eidos.resolve(family);
+		const weightKey = eidos.resolve(weight);
+		const colorKey = eidos.resolve(color);
+		const alignKey = eidos.resolve(align);
+		const trackingKey = eidos.resolve(tracking);
+
+		if (sizeKey) {
+			pushVar(decls, '--_display-font-size', `var(--font-size-${sizeKey})`);
+			pushVar(decls, '--_display-line-height', `var(--font-line-height-${sizeKey})`);
+			pushVar(decls, '--_display-letter-spacing', `var(--font-letter-spacing-${sizeKey})`);
+		}
+		if (familyKey) pushVar(decls, '--_display-font-family', `var(--font-family-${familyKey})`);
+		if (weightKey) pushVar(decls, '--_display-font-weight', `var(--font-weight-${weightKey})`);
+		if (colorKey) pushVar(decls, '--_display-color', `var(--color-content-${colorKey})`);
+		if (alignKey) pushVar(decls, '--_display-align', alignKey);
+		if (trackingKey && trackingKey in TRACKING_VALUE) {
+			pushVar(decls, '--_display-letter-spacing', TRACKING_VALUE[trackingKey]);
+		}
+		if (typeof clamp === 'number' && clamp > 0) pushVar(decls, '--_display-clamp', String(clamp));
+
+		const inline = decls.join(' ');
+		return [inline, tagStyle].filter(Boolean).join(' ');
+	});
+</script>
+
+<svelte:element
+	this={as}
+	{...restProps}
+	class={className}
+	data-display=""
+	data-tracking={tracking ? eidos.resolve(tracking) : undefined}
+	data-italic={italic ? '' : undefined}
+	data-underline={underline ? '' : undefined}
+	data-truncate={truncate ? '' : undefined}
+	data-clamp={typeof clamp === 'number' && clamp > 0 ? '' : undefined}
+	style={inlineStyle}
+>
+	{@render children?.()}
+</svelte:element>
diff --git a/src/uix/eidos/components/display/index.ts b/src/uix/eidos/components/display/index.ts
new file mode 100644
index 000000000..fb5da997b
--- /dev/null
+++ b/src/uix/eidos/components/display/index.ts
@@ -0,0 +1,27 @@
+// Display — eidos single-component hero typography primitive.
+//
+//   import { Display } from '$uix/eidos/components/display';
+//
+//   <Display>Welcome to UIX.</Display>
+//   <Display tracking="tight" weight="bold">Big.</Display>
+//
+// Single-component primitive — `<Display>` IS the root. Renders as
+// `<h1>` by default; `as` switches the tag. Eidos-native: no soma
+// backing, no semantic events.
+import DisplayComponent from './display.svelte';
+
+const Display = DisplayComponent;
+
+export { Display };
+
+export default Display;
+
+export type {
+	DisplayProps,
+	DisplaySize,
+	DisplayFamily,
+	DisplayWeight,
+	DisplayColor,
+	DisplayAlign,
+	DisplayTracking
+} from './types';
diff --git a/src/uix/eidos/components/display/types.ts b/src/uix/eidos/components/display/types.ts
new file mode 100644
index 000000000..0ee8d7d66
--- /dev/null
+++ b/src/uix/eidos/components/display/types.ts
@@ -0,0 +1,71 @@
+import type { Snippet } from 'svelte';
+import type { HTMLAttributes } from 'svelte/elements';
+import type { ResponsiveProp } from '$uix/eidos/lib/types';
+
+/** Discrete size scale — matches eidos shared `Size`. */
+export type DisplaySize = 'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl' | 'xxl' | 'xxxl';
+
+/** Font family slot. */
+export type DisplayFamily = 'primary' | 'secondary' | 'mono' | 'display';
+
+/** Weight slot. */
+export type DisplayWeight = 'regular' | 'medium' | 'semibold' | 'bold';
+
+/** Content-role color slot. */
+export type DisplayColor = 'primary' | 'secondary' | 'muted' | 'disabled' | 'on-solid';
+
+/** Horizontal alignment. */
+export type DisplayAlign = 'start' | 'center' | 'end' | 'justify';
+
+/**
+ * Display lets the consumer override letter-spacing because at hero
+ * sizes (44-60px) tracking becomes a design decision. Maps to a fixed
+ * em-based value chosen for hero copy:
+ *  - `tight`  → -0.02em
+ *  - `normal` →  0
+ *  - `wide`   →  0.02em
+ */
+export type DisplayTracking = 'tight' | 'normal' | 'wide';
+
+export type DisplayProps = Omit<HTMLAttributes<HTMLElement>, 'style' | 'children'> & {
+	/**
+	 * Override the hero style's font-size. Defaults to whatever the
+	 * `--style-hero-font-size` token emits (responsive: scales up at
+	 * the `md` breakpoint).
+	 */
+	size?: ResponsiveProp<DisplaySize>;
+	/** Override the hero style's font-family. */
+	family?: ResponsiveProp<DisplayFamily>;
+	/** Override the hero style's font-weight. */
+	weight?: ResponsiveProp<DisplayWeight>;
+	/** Override the hero style's color. */
+	color?: ResponsiveProp<DisplayColor>;
+	/** Text alignment. */
+	align?: ResponsiveProp<DisplayAlign>;
+	/**
+	 * Explicit tracking override. At display sizes letter-spacing is a
+	 * design choice, not a derived value. Maps to
+	 * `var(--font-letter-spacing-{key})`.
+	 */
+	tracking?: ResponsiveProp<DisplayTracking>;
+	/** Italic shorthand. @default false */
+	italic?: boolean;
+	/** Underline shorthand. @default false */
+	underline?: boolean;
+	/** Single-line truncation with ellipsis. */
+	truncate?: boolean;
+	/** Multi-line clamp via CSS `-webkit-line-clamp`. Set 0 to disable. */
+	clamp?: number;
+	/**
+	 * HTML tag to render. Default `<h1>` — Display is most often used
+	 * as the page hero title and should slot into the heading hierarchy
+	 * accordingly.
+	 * @default 'h1'
+	 */
+	as?: string;
+	/** Extra inline style — merged after the recipe variables. */
+	tagStyle?: string;
+	/** Extra class names. */
+	class?: string;
+	children?: Snippet;
+};
diff --git a/src/uix/eidos/components/heading/README.md b/src/uix/eidos/components/heading/README.md
new file mode 100644
index 000000000..621537a26
--- /dev/null
+++ b/src/uix/eidos/components/heading/README.md
@@ -0,0 +1,108 @@
+# Eidos Heading
+
+Semantic heading typography primitive. `level` chooses the HTML tag
+(`h1`..`h6`), `style` chooses the visual treatment — by default they
+mirror each other (`<Heading level={1}>` renders `<h1>` with the h1
+style), but they can be decoupled (`<Heading level={3} style="h1">`)
+for the common case where semantics and visual weight diverge.
+
+## Superficie
+
+```svelte
+<Heading>Page title</Heading>                   <!-- h2, style h2 -->
+<Heading level={1}>Hero section</Heading>       <!-- h1, style h1 -->
+<Heading level={3} style="h1">Subhead</Heading> <!-- visual h1, semantic h3 -->
+<Heading size="xxl" color="muted">Override scale + color</Heading>
+<Heading truncate>Single-line headline that may overflow…</Heading>
+<Heading clamp={2}>Two-line clamped title.</Heading>
+```
+
+## Baseline
+
+Origen: `air/components/typography/heading` (rama `morfo-runtime`).
+Adaptaciones para eidos:
+
+- **Visual + semantic split**: air carried `size` (visual paso 1..12) +
+  `level` (1..6) independent props. Eidos renames `size` to `style`
+  (`h1..h6`) tying it to the foundation tokens, while keeping `level`
+  for HTML semantics. The two default-mirror each other but can be
+  decoupled.
+- **Sizes**: air `1..12` → eidos `xxs..xxxl` mapping to the foundation
+  `--font-size-{key}` axis. Available as `size` override.
+- **Families**: air `'sans'|'serif'` → eidos
+  `primary/secondary/mono/display` from the foundation contract.
+- **Named foundation styles**: nuevo respecto a air. The recipe
+  consumes `--style-h{n}-*` (family + size + weight + line-height +
+  letter-spacing + color), with responsive overrides at `md` for
+  `h1`/`h2`. Per-prop overrides ganan vía local `--_heading-{axis}`.
+
+## Comparativa
+
+| Capacidad | UIX Heading | Radix Themes Heading | Chakra Heading | Mantine Title | MUI Typography |
+| --- | --- | --- | --- | --- | --- |
+| Semantic level prop | Sí (`level`) | Sí (`as`) | Sí (`as`) | Sí (`order`) | Sí (`component`) |
+| Visual style prop (decoupled) | Sí (`style`) | Numerical `size` | `textStyle` | Numerical `order` only | `variant` |
+| Decouple level vs style | Sí | Sí | Sí | Limited (order ties both) | Sí |
+| Size override | Sí (`size`) | Sí (`size`) | Sí (`fontSize`) | Sí (`size`) | Sí (`fontSize`) |
+| Family override | Sí (`family`) | Sí | Sí (`fontFamily`) | Sí (`ff`) | Sí |
+| Weight override | Sí | Sí (`weight`) | Sí (`fontWeight`) | Sí (`fw`) | Sí |
+| Color override (content-role) | Sí | Sí (intent) | Sí (free) | Sí (free) | Sí (free) |
+| Align | Sí | Sí | Sí | Sí (`ta`) | Sí |
+| Italic shorthand | Sí | No | Sí | Sí | Sí |
+| Underline shorthand | Sí | Sí | Sí | Sí | Sí |
+| Truncate | Sí | Sí | Sí | Sí | Sí |
+| Clamp (multi-line) | Sí (`clamp={N}`) | No | Sí (`noOfLines`) | Sí (`lineClamp`) | No |
+| Responsive props | Sí | Sí | Sí | Sí | Sí |
+
+## Decisiones
+
+- **`level` drives the rendered tag**: rendering `<h{level}>` keeps
+  the heading hierarchy correct for screen readers. The `as` prop
+  is available as an escape hatch when the visual look is needed
+  outside heading semantics.
+- **`style` mirrors `level` by default**: avoids a footgun where
+  consumers forget to set both. Common case is "h2 looks like h2";
+  decoupling is opt-in (`level={3} style="h1"`).
+- **Named foundation styles only**: keeps the visual scale aligned
+  with the design tokens. Per-axis overrides via `size`, `family`,
+  `weight` give granular control without breaking the contract.
+- **No `tracking` axis prop**: Display owns the explicit letter-spacing
+  prop because at hero sizes the value is a design decision; for
+  h1..h6 the foundation token already encodes the right tracking.
+- **`color` restricted to content-role slots**: same contract as Text.
+  Free hex/rgb values go through `tagStyle` escape hatch.
+- **Default tag is `<h2>`**: matches the most common in-page heading
+  level — h1 is reserved for the page title (use `level={1}`
+  explicitly). Mirrors air's default.
+
+## Eventos Sema
+
+Heading declara 0 eventos. Como Text/Box/Avatar, es una primitiva
+pasiva. Componentes que animan headings en aparición componen
+Heading dentro de un primitive interactivo (dialog, collapsible,
+toast) que posee los verbos sema relevantes.
+
+## Gaps
+
+| Gap | Disposición | Detalle |
+| --- | --- | --- |
+| Canvas-based line-count measurement (`text` string + bindable `lineCount`) | **diferir** | Pesa y complica SSR. CSS `-webkit-line-clamp` cubre el caso común; añadir cuando emerja la demanda real. |
+| Anchor-link (`#fragment` heading) integration | **diferir** | Patrón docs-specific, no del primitive. Construir un wrapper `<DocsHeading>` cuando la docs lo necesite. |
+| `tracking` prop como en Display | **descartar** | No-goal: h1..h6 tienen tracking definido por el token; si se necesita ajuste, usar `tagStyle`. |
+| Color libre (hex / CSS custom) en `color` prop | **descartar** | Rompe contrato de contraste. Escape hatch vía `tagStyle`. |
+| Variants tipográficas (small-caps, oldstyle figures) | **diferir** | Bajo prioridad. |
+
+## Referencias
+
+- Radix Themes Heading: https://www.radix-ui.com/themes/docs/components/heading
+- Chakra UI Heading: https://chakra-ui.com/docs/components/heading
+- Mantine Title: https://mantine.dev/core/title/
+- MUI Typography: https://mui.com/material-ui/react-typography/
+
+## Passive justification
+
+Visual-only (`scope: ['eidos']`). Una sola part Provider, marker
+`[data-heading]`. Sin estados, sin keyboard, sin ARIA propia (la
+semántica viene del tag `<h{level}>` que el navegador y AT entienden
+nativamente). La recipe consume `--style-h{n}-*` del foundation +
+`--_heading-{axis}` overrides escritas inline.
diff --git a/src/uix/eidos/components/heading/heading.css b/src/uix/eidos/components/heading/heading.css
new file mode 100644
index 000000000..cd9840fa0
--- /dev/null
+++ b/src/uix/eidos/components/heading/heading.css
@@ -0,0 +1,106 @@
+/*
+ * Heading recipe — semantic heading primitive.
+ *
+ * Applies one of the foundation's `--style-h{n}-*` named typography styles
+ * (h1..h6) per the `data-style` attribute, with per-axis overrides via
+ * local `--_heading-*` variables. The default `data-style` mirrors `level`,
+ * so `<Heading level={1}>` renders the h1 style automatically.
+ *
+ * Order of resolution (per CSS variable cascade):
+ *   1. Per-instance override (`--_heading-{axis}`) set inline by the
+ *      wrapper when the consumer passes a prop like `size="lg"`.
+ *   2. Named style token (`--style-h{n}-{axis}`) selected by `data-style`.
+ *
+ * Headings inherit a `margin: 0` reset — flow margins live on the
+ * containing layout primitive (Stack / Section).
+ */
+
+[data-heading] {
+	font-family: var(--_heading-font-family, var(--style-h2-font-family));
+	font-size: var(--_heading-font-size, var(--style-h2-font-size));
+	font-weight: var(--_heading-font-weight, var(--style-h2-font-weight));
+	line-height: var(--_heading-line-height, var(--style-h2-line-height));
+	letter-spacing: var(--_heading-letter-spacing, var(--style-h2-letter-spacing));
+	color: var(--_heading-color, var(--style-h2-color));
+	text-align: var(--_heading-align, inherit);
+	font-style: normal;
+	text-decoration: none;
+	margin: 0;
+}
+
+[data-heading][data-style='h1'] {
+	font-family: var(--_heading-font-family, var(--style-h1-font-family));
+	font-size: var(--_heading-font-size, var(--style-h1-font-size));
+	font-weight: var(--_heading-font-weight, var(--style-h1-font-weight));
+	line-height: var(--_heading-line-height, var(--style-h1-line-height));
+	letter-spacing: var(--_heading-letter-spacing, var(--style-h1-letter-spacing));
+	color: var(--_heading-color, var(--style-h1-color));
+}
+
+[data-heading][data-style='h3'] {
+	font-family: var(--_heading-font-family, var(--style-h3-font-family));
+	font-size: var(--_heading-font-size, var(--style-h3-font-size));
+	font-weight: var(--_heading-font-weight, var(--style-h3-font-weight));
+	line-height: var(--_heading-line-height, var(--style-h3-line-height));
+	letter-spacing: var(--_heading-letter-spacing, var(--style-h3-letter-spacing));
+	color: var(--_heading-color, var(--style-h3-color));
+}
+
+[data-heading][data-style='h4'] {
+	font-family: var(--_heading-font-family, var(--style-h4-font-family));
+	font-size: var(--_heading-font-size, var(--style-h4-font-size));
+	font-weight: var(--_heading-font-weight, var(--style-h4-font-weight));
+	line-height: var(--_heading-line-height, var(--style-h4-line-height));
+	letter-spacing: var(--_heading-letter-spacing, var(--style-h4-letter-spacing));
+	color: var(--_heading-color, var(--style-h4-color));
+}
+
+[data-heading][data-style='h5'] {
+	font-family: var(--_heading-font-family, var(--style-h5-font-family));
+	font-size: var(--_heading-font-size, var(--style-h5-font-size));
+	font-weight: var(--_heading-font-weight, var(--style-h5-font-weight));
+	line-height: var(--_heading-line-height, var(--style-h5-line-height));
+	letter-spacing: var(--_heading-letter-spacing, var(--style-h5-letter-spacing));
+	color: var(--_heading-color, var(--style-h5-color));
+}
+
+[data-heading][data-style='h6'] {
+	font-family: var(--_heading-font-family, var(--style-h6-font-family));
+	font-size: var(--_heading-font-size, var(--style-h6-font-size));
+	font-weight: var(--_heading-font-weight, var(--style-h6-font-weight));
+	line-height: var(--_heading-line-height, var(--style-h6-line-height));
+	letter-spacing: var(--_heading-letter-spacing, var(--style-h6-letter-spacing));
+	color: var(--_heading-color, var(--style-h6-color));
+}
+
+[data-heading][data-italic] {
+	font-style: italic;
+}
+
+[data-heading][data-underline] {
+	text-decoration: underline;
+	text-underline-offset: 0.15em;
+}
+
+[data-heading][data-truncate] {
+	display: inline-block;
+	max-inline-size: 100%;
+	overflow: hidden;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+	vertical-align: bottom;
+}
+
+[data-heading][data-clamp] {
+	display: -webkit-box;
+	-webkit-box-orient: vertical;
+	-webkit-line-clamp: var(--_heading-clamp, 1);
+	line-clamp: var(--_heading-clamp, 1);
+	overflow: hidden;
+}
+
+[data-heading][data-clamp][data-truncate] {
+	display: -webkit-box;
+	white-space: normal;
+	text-overflow: clip;
+}
diff --git a/src/uix/eidos/components/heading/heading.svelte b/src/uix/eidos/components/heading/heading.svelte
new file mode 100644
index 000000000..87704962e
--- /dev/null
+++ b/src/uix/eidos/components/heading/heading.svelte
@@ -0,0 +1,86 @@
+<script lang="ts">
+	/**
+	 * Eidos `<Heading>` — semantic heading (h1..h6) typography primitive.
+	 *
+	 * `level` drives the rendered HTML tag (`<h{level}>`) and defaults to
+	 * `2`. `style` selects the visual treatment (defaults to mirror `level`)
+	 * — the two are decoupled so you can render a semantic h3 with the
+	 * visual weight of an h1.
+	 *
+	 *   <Heading>Page title</Heading>             <!-- h2, style="h2" -->
+	 *   <Heading level={1}>Hero title</Heading>   <!-- h1, style="h1" -->
+	 *   <Heading level={3} style="h1">Section</Heading>
+	 *
+	 * The `[data-heading]` marker is the canonical selector for the recipe.
+	 */
+	import { ActiveEidos } from '$uix/eidos';
+	import type { HeadingProps, HeadingLevel, HeadingStyle } from './types';
+
+	let {
+		level = 2,
+		style: headingStyle,
+		size,
+		family,
+		weight,
+		color,
+		align,
+		italic = false,
+		underline = false,
+		truncate = false,
+		clamp,
+		as,
+		tagStyle,
+		class: className,
+		children,
+		...restProps
+	}: HeadingProps = $props();
+
+	const eidos = ActiveEidos.require();
+
+	const resolvedTag = $derived(as ?? `h${level}`);
+	const resolvedStyle = $derived<HeadingStyle>(headingStyle ?? (`h${level}` as HeadingStyle));
+
+	function pushVar(decls: string[], name: string, value: string | number | undefined): void {
+		if (value === undefined || value === null || value === '') return;
+		decls.push(`${name}: ${value};`);
+	}
+
+	const inlineStyle = $derived.by(() => {
+		const decls: string[] = [];
+		const sizeKey = eidos.resolve(size);
+		const familyKey = eidos.resolve(family);
+		const weightKey = eidos.resolve(weight);
+		const colorKey = eidos.resolve(color);
+		const alignKey = eidos.resolve(align);
+
+		if (sizeKey) {
+			pushVar(decls, '--_heading-font-size', `var(--font-size-${sizeKey})`);
+			pushVar(decls, '--_heading-line-height', `var(--font-line-height-${sizeKey})`);
+			pushVar(decls, '--_heading-letter-spacing', `var(--font-letter-spacing-${sizeKey})`);
+		}
+		if (familyKey) pushVar(decls, '--_heading-font-family', `var(--font-family-${familyKey})`);
+		if (weightKey) pushVar(decls, '--_heading-font-weight', `var(--font-weight-${weightKey})`);
+		if (colorKey) pushVar(decls, '--_heading-color', `var(--color-content-${colorKey})`);
+		if (alignKey) pushVar(decls, '--_heading-align', alignKey);
+		if (typeof clamp === 'number' && clamp > 0) pushVar(decls, '--_heading-clamp', String(clamp));
+
+		const inline = decls.join(' ');
+		return [inline, tagStyle].filter(Boolean).join(' ');
+	});
+</script>
+
+<svelte:element
+	this={resolvedTag}
+	{...restProps}
+	class={className}
+	data-heading=""
+	data-level={level}
+	data-style={resolvedStyle}
+	data-italic={italic ? '' : undefined}
+	data-underline={underline ? '' : undefined}
+	data-truncate={truncate ? '' : undefined}
+	data-clamp={typeof clamp === 'number' && clamp > 0 ? '' : undefined}
+	style={inlineStyle}
+>
+	{@render children?.()}
+</svelte:element>
diff --git a/src/uix/eidos/components/heading/index.ts b/src/uix/eidos/components/heading/index.ts
new file mode 100644
index 000000000..1af2cab51
--- /dev/null
+++ b/src/uix/eidos/components/heading/index.ts
@@ -0,0 +1,29 @@
+// Heading — eidos single-component typography primitive.
+//
+//   import { Heading } from '$uix/eidos/components/heading';
+//
+//   <Heading>Page title</Heading>                <!-- h2, style="h2" -->
+//   <Heading level={1}>Hero title</Heading>      <!-- h1, style="h1" -->
+//   <Heading level={3} style="h1">Section</Heading>
+//
+// Single-component primitive — `<Heading>` IS the root, no compound
+// parts. Renders as `<h{level}>` (default `<h2>`). Eidos-native: no
+// soma backing, no semantic events.
+import HeadingComponent from './heading.svelte';
+
+const Heading = HeadingComponent;
+
+export { Heading };
+
+export default Heading;
+
+export type {
+	HeadingProps,
+	HeadingStyle,
+	HeadingLevel,
+	HeadingSize,
+	HeadingFamily,
+	HeadingWeight,
+	HeadingColor,
+	HeadingAlign
+} from './types';
diff --git a/src/uix/eidos/components/heading/types.ts b/src/uix/eidos/components/heading/types.ts
new file mode 100644
index 000000000..deeb71cc7
--- /dev/null
+++ b/src/uix/eidos/components/heading/types.ts
@@ -0,0 +1,69 @@
+import type { Snippet } from 'svelte';
+import type { HTMLAttributes } from 'svelte/elements';
+import type { ResponsiveProp } from '$uix/eidos/lib/types';
+
+/** Named heading styles emitted by the foundation as `--style-h{n}-*`. */
+export type HeadingStyle = 'h1' | 'h2' | 'h3' | 'h4' | 'h5' | 'h6';
+
+/** Semantic HTML heading level (h1..h6). */
+export type HeadingLevel = 1 | 2 | 3 | 4 | 5 | 6;
+
+/** Discrete size scale — matches eidos `Size`. */
+export type HeadingSize = 'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl' | 'xxl' | 'xxxl';
+
+/** Font family slot. Maps to `--font-family-{key}`. */
+export type HeadingFamily = 'primary' | 'secondary' | 'mono' | 'display';
+
+/** Weight slot. Maps to `--font-weight-{key}`. */
+export type HeadingWeight = 'regular' | 'medium' | 'semibold' | 'bold';
+
+/** Content-role color slot. */
+export type HeadingColor = 'primary' | 'secondary' | 'muted' | 'disabled' | 'on-solid';
+
+/** Horizontal alignment. */
+export type HeadingAlign = 'start' | 'center' | 'end' | 'justify';
+
+export type HeadingProps = Omit<HTMLAttributes<HTMLHeadingElement>, 'style' | 'children'> & {
+	/**
+	 * Semantic HTML level — renders `<h{level}>`. Default `2`. Independent
+	 * of `style`, allowing decoupling (`level={3} style="h1"` for visual h1
+	 * with semantic h3).
+	 * @default 2
+	 */
+	level?: HeadingLevel;
+	/**
+	 * Named typography style. When omitted, mirrors `level` (h1..h6).
+	 * Applies the full `--style-h{n}-*` token set (family + size + weight +
+	 * line-height + letter-spacing + color).
+	 */
+	style?: HeadingStyle;
+	/** Override the style's font-size. */
+	size?: ResponsiveProp<HeadingSize>;
+	/** Override the style's font-family. */
+	family?: ResponsiveProp<HeadingFamily>;
+	/** Override the style's font-weight. */
+	weight?: ResponsiveProp<HeadingWeight>;
+	/** Override the style's color. */
+	color?: ResponsiveProp<HeadingColor>;
+	/** Text alignment. */
+	align?: ResponsiveProp<HeadingAlign>;
+	/** Italic shorthand. @default false */
+	italic?: boolean;
+	/** Underline shorthand. @default false */
+	underline?: boolean;
+	/** Single-line truncation with ellipsis. @default false */
+	truncate?: boolean;
+	/** Multi-line clamp via CSS `-webkit-line-clamp`. Set 0 to disable. */
+	clamp?: number;
+	/**
+	 * Override the rendered tag. By default the tag is derived from `level`
+	 * (`<h{level}>`). Use this to render a non-heading element while keeping
+	 * the heading typography.
+	 */
+	as?: string;
+	/** Extra inline style — merged after the recipe variables. */
+	tagStyle?: string;
+	/** Extra class names. */
+	class?: string;
+	children?: Snippet;
+};
diff --git a/src/uix/eidos/components/highlight/README.md b/src/uix/eidos/components/highlight/README.md
new file mode 100644
index 000000000..12955ae3b
--- /dev/null
+++ b/src/uix/eidos/components/highlight/README.md
@@ -0,0 +1,83 @@
+# Eidos Highlight
+
+Substring highlighter primitive. Wraps a `<span>` shell containing the
+input `text` and replaces matches of `query` with `<mark>` elements
+that inherit the same recipe as the standalone `<Mark>` primitive.
+Composes inside any inline-flow primitive (Text, Heading, paragraph).
+
+## Superficie
+
+```svelte
+<Highlight text="Hello world" query="world" />
+<Highlight text={message} query={['error', 'failed']} color="threat" />
+<Highlight text="Case study" query="case" ignoreCase={false} />
+```
+
+## Baseline
+
+Origen: `air/components/typography/highlight` (rama `morfo-runtime`).
+Adaptaciones para eidos:
+
+- **Reuses Mark recipe**: air's Highlight imported `../mark/mark.css`
+  directly. Eidos keeps the same idea — the inner `<mark>` elements
+  stamp `data-mark` so the Mark recipe applies without duplication.
+- **Palette canonized**: same migration as Mark — `yellow / green /
+  blue / red / purple` → intent vocabulary.
+- **Default `fulfill`**: consistent with Mark.
+- **Pure CSS**: the highlight shell is `<span>` + `font: inherit`.
+  Air did the same.
+
+## Comparativa
+
+| Capacidad | UIX Highlight | Mantine Highlight | Radix Themes | Chakra Highlight |
+| --- | --- | --- | --- | --- |
+| Substring match | Sí | Sí | No | Sí |
+| Multiple terms | Sí (`query` array) | Sí (`highlight` array) | No | Sí (`query` array) |
+| Case-insensitive | Sí (`ignoreCase`) | Sí (`highlightStyles`) | No | Sí (`styles.matchCase`) |
+| Color palette | Intent | free | No | colorScheme |
+| Regex query | No (literal escape) | Yes (with prop) | No | No |
+| Inherits typography | Sí | Sí | No | Sí |
+
+## Decisiones
+
+- **Inner marks reuse Mark recipe**: avoids two parallel highlight
+  surfaces. The Mark recipe is the single visual source.
+- **Outer shell is `<span>`**: keeps Highlight composable inline.
+  Consumers wrap it inside `<Text>` / `<Heading>` for typography.
+- **`query` is literal**: each term is regex-escaped, so consumers
+  can pass user input safely. No `regex` opt-in today — if a power
+  use case emerges, add a `pattern` prop that accepts a `RegExp`.
+- **`ignoreCase` default `true`**: search-result UX expects
+  case-insensitive matching. Opt out via `ignoreCase={false}` when
+  the consumer needs case-sensitive logic (code search).
+- **No empty-query gotcha**: if `query` is empty / whitespace-only,
+  render the text unchanged (no marks).
+
+## Eventos Sema
+
+Highlight declara 0 eventos. Visual-only — el primitive es un
+formatter, no input.
+
+## Gaps
+
+| Gap | Disposición | Detalle |
+| --- | --- | --- |
+| Regex query support | **diferir** | Si emerge, añadir `pattern: RegExp` prop como alternativa a `query`. |
+| Token / word-boundary match | **diferir** | Requiere parser; cubrir cuando llegue un caso real. |
+| Snippet-based render override | **diferir** | Si un consumer necesita custom Mark per term, ya puede componer Mark manualmente sin Highlight. |
+| Per-term different colors | **diferir** | Hoy todos los matches usan el mismo `color`. Si emerge, aceptar un map `{ term: color }`. |
+| Free hex color | **descartar** | Mismo razón que Mark — contrato de contraste. |
+
+## Referencias
+
+- Mantine Highlight: https://mantine.dev/core/highlight/
+- Chakra UI Highlight: https://chakra-ui.com/docs/components/highlight
+- MDN `<mark>`: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/mark
+
+## Passive justification
+
+Visual-only (`scope: ['eidos']`). Una sola part Provider (`<span
+data-highlight>` shell). El primitive es un formatter: dado `text` +
+`query` produce un árbol de segmentos, marcando los matches con
+`<mark data-mark>`. Sin estados, sin keyboard, sin ARIA propia.
+La recipe del mark inner es compartida con `<Mark>`.
diff --git a/src/uix/eidos/components/highlight/highlight.css b/src/uix/eidos/components/highlight/highlight.css
new file mode 100644
index 000000000..2dbb3be1c
--- /dev/null
+++ b/src/uix/eidos/components/highlight/highlight.css
@@ -0,0 +1,20 @@
+/*
+ * Highlight recipe — substring highlighter shell.
+ *
+ * The shell is purely a structural anchor; all visible chrome lives on
+ * the inner `<mark data-mark>` elements which inherit the Mark recipe
+ * (see ../mark/mark.css). The shell consumes `font: inherit` so it
+ * composes inside any inline-flow primitive without breaking line
+ * height.
+ *
+ * Per-instance color is stamped via `data-color` on the outer shell
+ * for consumer overrides (the inner marks duplicate the value so the
+ * Mark recipe matches without traversing the cascade).
+ */
+
+[data-highlight] {
+	font: inherit;
+	color: inherit;
+	background: transparent;
+	display: inline;
+}
diff --git a/src/uix/eidos/components/highlight/highlight.svelte b/src/uix/eidos/components/highlight/highlight.svelte
new file mode 100644
index 000000000..c92f35fb8
--- /dev/null
+++ b/src/uix/eidos/components/highlight/highlight.svelte
@@ -0,0 +1,72 @@
+<script lang="ts">
+	/**
+	 * Eidos `<Highlight>` — substring highlighter.
+	 *
+	 *   <Highlight text="Hello world" query="world" />
+	 *   <Highlight text={message} query={['error', 'failed']} color="threat" />
+	 *
+	 * Wraps the input `text` in a `<span>` shell and replaces matches of
+	 * `query` (string or array) with `<mark data-mark>` elements that
+	 * inherit the same recipe as the standalone `<Mark>` primitive.
+	 */
+	import { ActiveEidos } from '$uix/eidos';
+	import type { HighlightProps } from './types';
+
+	let {
+		text,
+		query,
+		ignoreCase = true,
+		color,
+		as = 'span',
+		tagStyle,
+		class: className,
+		...restProps
+	}: HighlightProps = $props();
+
+	const eidos = ActiveEidos.require();
+	const resolvedColor = $derived(eidos.resolve(color) ?? 'fulfill');
+
+	type Segment = { text: string; mark: boolean };
+
+	const segments = $derived.by<Segment[]>(() => {
+		const terms = (Array.isArray(query) ? query : [query]).filter((t) => t && t.length > 0);
+		if (terms.length === 0) return [{ text, mark: false }];
+
+		const escaped = terms.map((t) => t.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'));
+		const pattern = escaped.join('|');
+		const flags = ignoreCase ? 'gi' : 'g';
+		const regex = new RegExp(`(${pattern})`, flags);
+
+		const result: Segment[] = [];
+		let lastIndex = 0;
+		let match: RegExpExecArray | null;
+		while ((match = regex.exec(text)) !== null) {
+			if (match.index > lastIndex) {
+				result.push({ text: text.slice(lastIndex, match.index), mark: false });
+			}
+			result.push({ text: match[0], mark: true });
+			lastIndex = regex.lastIndex;
+		}
+		if (lastIndex < text.length) {
+			result.push({ text: text.slice(lastIndex), mark: false });
+		}
+		return result.length > 0 ? result : [{ text, mark: false }];
+	});
+</script>
+
+<svelte:element
+	this={as}
+	{...restProps}
+	class={className}
+	data-highlight=""
+	data-color={resolvedColor}
+	style={tagStyle}
+>
+	{#each segments as seg}
+		{#if seg.mark}
+			<mark data-mark="" data-color={resolvedColor}>{seg.text}</mark>
+		{:else}
+			{seg.text}
+		{/if}
+	{/each}
+</svelte:element>
diff --git a/src/uix/eidos/components/highlight/index.ts b/src/uix/eidos/components/highlight/index.ts
new file mode 100644
index 000000000..2d25641aa
--- /dev/null
+++ b/src/uix/eidos/components/highlight/index.ts
@@ -0,0 +1,18 @@
+// Highlight — eidos single-component substring highlighter.
+//
+//   import { Highlight } from '$uix/eidos/components/highlight';
+//
+//   <Highlight text="Hello world" query="world" />
+//   <Highlight text={message} query={['error', 'failed']} color="threat" />
+//
+// Single-component primitive — `<Highlight>` IS the root. Renders a
+// `<span>` shell wrapping matches in `<mark data-mark>` elements.
+import HighlightComponent from './highlight.svelte';
+
+const Highlight = HighlightComponent;
+
+export { Highlight };
+
+export default Highlight;
+
+export type { HighlightProps, HighlightColor } from './types';
diff --git a/src/uix/eidos/components/highlight/types.ts b/src/uix/eidos/components/highlight/types.ts
new file mode 100644
index 000000000..96a0a585f
--- /dev/null
+++ b/src/uix/eidos/components/highlight/types.ts
@@ -0,0 +1,22 @@
+import type { HTMLAttributes } from 'svelte/elements';
+import type { ColorRole, ResponsiveProp } from '$uix/eidos/lib/types';
+
+/** Intent palette for the highlight tint. */
+export type HighlightColor = ColorRole;
+
+export type HighlightProps = Omit<HTMLAttributes<HTMLElement>, 'style' | 'children'> & {
+	/** Full text to render. Matches of `query` will be wrapped in `<mark>`. */
+	text: string;
+	/** Substring(s) to highlight. Pass an array for multiple matches. */
+	query: string | string[];
+	/** Case-insensitive match. @default true */
+	ignoreCase?: boolean;
+	/** Intent palette for the highlight tint. @default 'fulfill' */
+	color?: ResponsiveProp<HighlightColor>;
+	/** Render a different tag for the outer shell. @default 'span' */
+	as?: string;
+	/** Extra inline style on the outer shell. */
+	tagStyle?: string;
+	/** Extra class names on the outer shell. */
+	class?: string;
+};
diff --git a/src/uix/eidos/components/kbd/README.md b/src/uix/eidos/components/kbd/README.md
new file mode 100644
index 000000000..09aa1233f
--- /dev/null
+++ b/src/uix/eidos/components/kbd/README.md
@@ -0,0 +1,82 @@
+# Eidos Kbd
+
+Keyboard shortcut typography primitive. Renders `<kbd>` with a small
+chrome (border + background + inner padding) so the key looks like a
+physical cap. Inline within prose — for shortcut hints, key sequences.
+
+## Superficie
+
+```svelte
+<p>Press <Kbd>Ctrl</Kbd> + <Kbd>K</Kbd> to open search.</p>
+<p>Hit <Kbd variant="outline" size="sm">Esc</Kbd> to dismiss.</p>
+<p>Type <Kbd variant="ghost">tab</Kbd> to switch focus.</p>
+```
+
+## Baseline
+
+Origen: `air/components/typography/kbd` (rama `morfo-runtime`).
+Adaptaciones para eidos:
+
+- **Default size aligned with foundation**: air defaulted `size=2`
+  (small). Eidos reads `--font-size-xs` directly so the default
+  pulls from the foundation contract instead of a numeric paso.
+- **Variants added**: `surface` (default, filled with neutral element
+  bg + border), `outline` (transparent + border), `ghost` (no chrome).
+  Air had only one treatment.
+- **Lower border emphasis preserved**: `surface` keeps the
+  `border-bottom-width: 2px` + inset shadow trick to read like a
+  physical cap; `outline` and `ghost` drop it for cleaner inline
+  flow.
+- **Tokens**: `--air-kbd-*` → consume the foundation directly
+  (`--style-code-*`, `--color-neutral-*`, `--font-size-{key}`).
+
+## Comparativa
+
+| Capacidad | UIX Kbd | Radix Themes Kbd | Chakra Kbd | Mantine Kbd | shadcn/ui Kbd |
+| --- | --- | --- | --- | --- | --- |
+| Visual key-cap chrome | Sí | Sí | Sí | Sí | Sí |
+| Variants | surface / outline / ghost | size only | colorScheme | none | none |
+| Size override | Sí | Sí | Sí | Sí | inherits font-size |
+| Mono family | Sí (`--style-code-font-family`) | Sí | Sí | Sí | Sí |
+| Inline semantics (`<kbd>`) | Sí | Sí | Sí | Sí | Sí |
+| `as` polymorphism | Sí | Sí | Sí | Sí | No |
+
+## Decisiones
+
+- **Default `surface` variant**: the chrome is the entire point of the
+  primitive — bare mono text would just be `<Code>`.
+- **Mono family from `--style-code-font-family`**: same source as Code
+  / CodeBlock. Keeps the typography contract single-rooted.
+- **`min-inline-size: 1.5em`**: ensures single-char keys ("K", "1")
+  read as square caps and don't collapse to text width.
+- **No platform key mapping**: air did not ship `<Kbd cmd>` to swap
+  `Ctrl` → `⌘` on macOS. Defer until a clear use case emerges; the
+  consumer can branch on `navigator.platform` today.
+
+## Eventos Sema
+
+Kbd declara 0 eventos. Visual-only — el shortcut event lives on
+the consumer (a Toolbar button, a global key handler), no en el
+primitive de label.
+
+## Gaps
+
+| Gap | Disposición | Detalle |
+| --- | --- | --- |
+| Platform-aware key swap (`Ctrl` ↔ `⌘`) | **diferir** | El consumer branches en `navigator.platform`. Si el patrón se repite, añadir un helper `kbdForPlatform()` o un wrapper docs-level. |
+| Sequence helper (`<Kbd sequence={['Ctrl','K']} />`) | **diferir** | Composable inline — `<Kbd>Ctrl</Kbd> + <Kbd>K</Kbd>` cubre el caso sin contratar más superficie. |
+| Sound on key press demo (educational) | **descartar** | El primitive es label, no input. Sound on press pertenece a una demo o componente Sound separado. |
+
+## Referencias
+
+- Radix Themes Kbd: https://www.radix-ui.com/themes/docs/components/kbd
+- Chakra UI Kbd: https://chakra-ui.com/docs/components/kbd
+- Mantine Kbd: https://mantine.dev/core/kbd/
+- MDN `<kbd>`: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/kbd
+
+## Passive justification
+
+Visual-only (`scope: ['eidos']`). Una sola part Provider, marker
+`[data-kbd]`. Sin estados, sin keyboard, sin ARIA propia. La recipe
+consume `--style-code-*` + `--color-neutral-*` del foundation + el
+override `--_kbd-font-size` inline.
diff --git a/src/uix/eidos/components/kbd/index.ts b/src/uix/eidos/components/kbd/index.ts
new file mode 100644
index 000000000..2133e43f7
--- /dev/null
+++ b/src/uix/eidos/components/kbd/index.ts
@@ -0,0 +1,18 @@
+// Kbd — eidos single-component keyboard shortcut primitive.
+//
+//   import { Kbd } from '$uix/eidos/components/kbd';
+//
+//   <Kbd>Ctrl</Kbd> + <Kbd>K</Kbd>
+//   <Kbd variant="outline" size="sm">Esc</Kbd>
+//
+// Single-component primitive — `<Kbd>` IS the root. Renders as
+// `<kbd>` by default.
+import KbdComponent from './kbd.svelte';
+
+const Kbd = KbdComponent;
+
+export { Kbd };
+
+export default Kbd;
+
+export type { KbdProps, KbdSize, KbdVariant } from './types';
diff --git a/src/uix/eidos/components/kbd/kbd.css b/src/uix/eidos/components/kbd/kbd.css
new file mode 100644
index 000000000..5ceffd4df
--- /dev/null
+++ b/src/uix/eidos/components/kbd/kbd.css
@@ -0,0 +1,49 @@
+/*
+ * Kbd recipe — keyboard shortcut visual.
+ *
+ * Uses the foundation's code typography (mono family + small size) plus
+ * a chrome that mimics a physical key cap. The `data-variant` flag
+ * picks the chrome treatment:
+ *   - `surface` filled with neutral element bg + border
+ *   - `outline` transparent fill, border only
+ *   - `ghost`   no chrome, mono font only
+ */
+
+[data-kbd] {
+	display: inline-flex;
+	align-items: center;
+	justify-content: center;
+	font-family: var(--style-code-font-family);
+	font-size: var(--_kbd-font-size, var(--font-size-xs));
+	font-weight: var(--font-weight-medium);
+	line-height: 1;
+	color: var(--color-content-primary);
+	background: transparent;
+	border: 0;
+	border-radius: var(--radius-sm);
+	padding-inline: 0.4em;
+	padding-block: 0.18em;
+	min-inline-size: 1.5em;
+	vertical-align: baseline;
+	user-select: none;
+	white-space: nowrap;
+	letter-spacing: 0.02em;
+}
+
+[data-kbd][data-variant='surface'] {
+	background: var(--color-neutral-element);
+	border: 1px solid var(--color-neutral-border);
+	border-bottom-width: 2px;
+	box-shadow: 0 1px 0 var(--color-neutral-border) inset;
+}
+
+[data-kbd][data-variant='outline'] {
+	background: transparent;
+	border: 1px solid var(--color-neutral-border);
+}
+
+[data-kbd][data-variant='ghost'] {
+	background: transparent;
+	border: 0;
+	padding-inline: 0;
+}
diff --git a/src/uix/eidos/components/kbd/kbd.svelte b/src/uix/eidos/components/kbd/kbd.svelte
new file mode 100644
index 000000000..f6a47f53b
--- /dev/null
+++ b/src/uix/eidos/components/kbd/kbd.svelte
@@ -0,0 +1,51 @@
+<script lang="ts">
+	/**
+	 * Eidos `<Kbd>` — keyboard shortcut visual.
+	 *
+	 *   <Kbd>Ctrl</Kbd> + <Kbd>K</Kbd>
+	 *   <Kbd variant="outline" size="sm">Esc</Kbd>
+	 *
+	 * Renders `<kbd>` with a small chrome (border, background, inner
+	 * padding) so the key looks like a physical cap.
+	 */
+	import { ActiveEidos } from '$uix/eidos';
+	import type { KbdProps } from './types';
+
+	let {
+		variant,
+		size,
+		as = 'kbd',
+		tagStyle,
+		class: className,
+		children,
+		...restProps
+	}: KbdProps = $props();
+
+	const eidos = ActiveEidos.require();
+
+	const resolvedVariant = $derived(eidos.resolve(variant) ?? 'surface');
+
+	function pushVar(decls: string[], name: string, value: string | undefined): void {
+		if (!value) return;
+		decls.push(`${name}: ${value};`);
+	}
+
+	const inlineStyle = $derived.by(() => {
+		const decls: string[] = [];
+		const sizeKey = eidos.resolve(size);
+		if (sizeKey) pushVar(decls, '--_kbd-font-size', `var(--font-size-${sizeKey})`);
+		const inline = decls.join(' ');
+		return [inline, tagStyle].filter(Boolean).join(' ');
+	});
+</script>
+
+<svelte:element
+	this={as}
+	{...restProps}
+	class={className}
+	data-kbd=""
+	data-variant={resolvedVariant}
+	style={inlineStyle}
+>
+	{@render children?.()}
+</svelte:element>
diff --git a/src/uix/eidos/components/kbd/types.ts b/src/uix/eidos/components/kbd/types.ts
new file mode 100644
index 000000000..9ab189207
--- /dev/null
+++ b/src/uix/eidos/components/kbd/types.ts
@@ -0,0 +1,23 @@
+import type { Snippet } from 'svelte';
+import type { HTMLAttributes } from 'svelte/elements';
+import type { ResponsiveProp } from '$uix/eidos/lib/types';
+
+/** Discrete size scale. */
+export type KbdSize = 'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl';
+
+/** Visual treatment. */
+export type KbdVariant = 'surface' | 'outline' | 'ghost';
+
+export type KbdProps = Omit<HTMLAttributes<HTMLElement>, 'style' | 'children'> & {
+	/** Visual treatment. @default 'surface' */
+	variant?: ResponsiveProp<KbdVariant>;
+	/** Size override. @default inherits foundation `--style-code-font-size` */
+	size?: ResponsiveProp<KbdSize>;
+	/** Render a different tag. @default 'kbd' */
+	as?: string;
+	/** Extra inline style. */
+	tagStyle?: string;
+	/** Extra class names. */
+	class?: string;
+	children?: Snippet;
+};
diff --git a/src/uix/eidos/components/link/README.md b/src/uix/eidos/components/link/README.md
new file mode 100644
index 000000000..dd373a778
--- /dev/null
+++ b/src/uix/eidos/components/link/README.md
@@ -0,0 +1,112 @@
+# Eidos Link
+
+Inline text link primitive. Renders `<a>` by default — or
+`<span aria-disabled>` when disabled — so the link composes
+mid-paragraph without breaking the ambient typography. Visual
+variants drive color + underline; `external` adds the standard
+`target="_blank"` + `rel="noopener noreferrer"` + accessibility
+affordances.
+
+## Superficie
+
+```svelte
+<p>Read the <Link href="/docs">documentation</Link>.</p>
+<Link href="https://github.com/" external>GitHub</Link>
+<Link variant="subtle" underline="always" color="secondary">Tertiary</Link>
+<Link disabled>Unavailable</Link>
+```
+
+## Baseline
+
+Origen: `air/components/typography/link` (rama `morfo-runtime`).
+Adaptaciones para eidos:
+
+- **Variants**: air shipped `default / subtle / quiet / emphasized`.
+  Eidos consolidates to `default / subtle / plain`:
+  - `default` = colored underline-on-hover (most common)
+  - `subtle`  = inherits color, underline-on-hover (sidebar / nav)
+  - `plain`   = inherits color, no underline (button-like inline)
+  `emphasized` is replaceable via `weight` / `color` overrides on Text
+  if the user truly needs a bold link.
+- **Underline contract preserved**: `none / hover / always` — air's
+  shape.
+- **`color` opened to full intent palette**: air locked to a single
+  `primary` color. Eidos accepts the canonical `ColorRole` union so
+  destructive-link variants (`color="risk"`) and affirmative
+  (`color="affirm"`) compose with the rest of the system.
+- **`size` reduced to xxs..xl**: air used `sm/md/lg`. Eidos aligns
+  with the foundation `--font-size-{key}` scale; default inherits
+  ambient typography.
+- **External-link icon kept**: tiny inline SVG + SR-only "(opens in
+  new tab)" text. Air's pattern.
+- **`disabled` renders `<span aria-disabled>`**: matches air; drops
+  `href`, disables pointer events.
+
+## Comparativa
+
+| Capacidad | UIX Link | Radix Themes Link | Chakra Link | Mantine Anchor |
+| --- | --- | --- | --- | --- |
+| Inline anchor element | Sí | Sí | Sí | Sí |
+| Variant treatments | default / subtle / plain | size + weight | colorScheme | underline + colors |
+| Underline control | none / hover / always | hover only | hover + always | hover + always |
+| Color (intent palette) | Sí (full ColorRole) | accent | colorScheme | colors |
+| External link affordance | Sí (`external` + SR text + icon) | manual | manual | manual |
+| Disabled state | Sí | No | Sí (custom) | Sí |
+| Inherits typography | Sí | Sí | Sí | Sí |
+| `size` override | Sí | Sí (size scale) | Sí | Sí |
+
+## Decisiones
+
+- **Inherits ambient typography**: Link is mid-paragraph; the font /
+  weight / line-height come from the surrounding `<Text>` /
+  `<Heading>` / `<p>`. Local overrides are limited to size, color,
+  underline.
+- **`color` opens to full ColorRole**: enables `color="risk"` for
+  destructive links (`Delete account`) and `color="affirm"` for
+  positive actions, while keeping the contrast contract via the
+  intent palette.
+- **Default `variant='default'` + `underline='hover'`**: matches
+  Radix / Chakra default. The colored-underline-on-hover is the
+  most familiar inline link affordance.
+- **`disabled` renders `<span aria-disabled>`**: keeps the anchor
+  out of the tab order without removing the visual position. The
+  consumer can swap to a `<button disabled>` if they need keyboard
+  focus parity with form controls.
+- **External-link affordance is opt-in**: `external` is the explicit
+  prop. SR-only text reads "(opens in new tab)"; the SVG icon is
+  visible. Reverts to plain `<a>` when omitted.
+
+## Eventos Sema
+
+Link declara 0 eventos en su morfo. Navigation/click ownership belongs
+to the consumer (SvelteKit router, custom action, sema-driven verb on
+the surrounding component). Si Link se usa como affordance que disparara
+un commit (form submit, dialog action), el consumer compone un
+`<Toolbar.Button>` u otro componente con sema — Link no es ese surface.
+
+## Gaps
+
+| Gap | Disposición | Detalle |
+| --- | --- | --- |
+| `emphasized` air variant (bold link) | **diferir** | Composable: `<Text weight="semibold"><Link>…</Link></Text>` cubre el caso sin contratar superficie. |
+| Custom external icon | **diferir** | Si emerge demanda real, exponer un slot snippet. |
+| `prefetch` / SvelteKit-specific props | **descartar** | El consumer pasa atributos directamente al `<a>`. |
+| Sema `commit-navigate` event | **diferir** | Bajo el contrato actual la navegación es responsabilidad del consumer; si emerge un caso (analytics, perceptual feedback), añadir cuando 2 capas lo consuman. |
+| Disabled state + focus ring | **descartar** | Cuando deshabilitado, no debe estar en el tab order. |
+
+## Referencias
+
+- Radix Themes Link: https://www.radix-ui.com/themes/docs/components/link
+- Chakra UI Link: https://chakra-ui.com/docs/components/link
+- Mantine Anchor: https://mantine.dev/core/anchor/
+- shadcn/ui Link patterns: https://ui.shadcn.com/
+
+## Passive justification
+
+`scope: ['eidos']` — visual-only primitive. Una sola part Provider
+(`<a data-link>` o `<span data-link data-disabled>`). El primitive
+expone estados visuales (`hover`, `active`, `focus-visible`,
+`disabled`) pero **no** semantic events: hover y active no son
+verbos sema, y commit-navigate pertenece al consumer (router /
+analytics). La recipe consume `--color-{intent}-*` + `--radius-sm`
+del foundation.
diff --git a/src/uix/eidos/components/link/index.ts b/src/uix/eidos/components/link/index.ts
new file mode 100644
index 000000000..bdaa45db0
--- /dev/null
+++ b/src/uix/eidos/components/link/index.ts
@@ -0,0 +1,20 @@
+// Link — eidos single-component inline text link.
+//
+//   import { Link } from '$uix/eidos/components/link';
+//
+//   <Link href="/docs">docs</Link>
+//   <Link href="https://github.com/" external>GitHub</Link>
+//   <Link variant="subtle" underline="always">Tertiary</Link>
+//
+// Single-component primitive — `<Link>` IS the root. Renders `<a>`
+// (or `<span aria-disabled>` when disabled). Inherits ambient
+// typography.
+import LinkComponent from './link.svelte';
+
+const Link = LinkComponent;
+
+export { Link };
+
+export default Link;
+
+export type { LinkProps, LinkVariant, LinkUnderline, LinkSize, LinkColor } from './types';
diff --git a/src/uix/eidos/components/link/link.css b/src/uix/eidos/components/link/link.css
new file mode 100644
index 000000000..cb2fc2d35
--- /dev/null
+++ b/src/uix/eidos/components/link/link.css
@@ -0,0 +1,128 @@
+/*
+ * Link recipe — inline text link.
+ *
+ * Inherits ambient typography (no own font-family / weight). The recipe
+ * controls color, underline behavior, focus ring, hover / active visual
+ * states, and an external-link icon.
+ *
+ * Variant matrix:
+ *   - `default`  intent color, underline-on-hover
+ *   - `subtle`   inherits color, underline-on-hover
+ *   - `plain`    inherits color, no underline ever
+ *
+ * Underline override (`always` / `hover` / `none`) wins over variant
+ * default when explicitly set.
+ */
+
+[data-link] {
+	font: inherit;
+	font-size: var(--_link-font-size, inherit);
+	line-height: var(--_link-line-height, inherit);
+	color: var(--color-primary-text);
+	background: transparent;
+	border-radius: var(--radius-sm);
+	display: inline-flex;
+	align-items: center;
+	gap: 0.25em;
+	cursor: pointer;
+	text-decoration: none;
+	transition:
+		color 120ms ease,
+		text-decoration-color 120ms ease;
+}
+
+[data-link][data-color='primary'] {
+	color: var(--color-primary-text);
+}
+[data-link][data-color='secondary'] {
+	color: var(--color-secondary-text);
+}
+[data-link][data-color='neutral'] {
+	color: var(--color-neutral-text);
+}
+[data-link][data-color='affirm'] {
+	color: var(--color-affirm-text);
+}
+[data-link][data-color='fulfill'] {
+	color: var(--color-fulfill-text);
+}
+[data-link][data-color='risk'] {
+	color: var(--color-risk-text);
+}
+[data-link][data-color='threat'] {
+	color: var(--color-threat-text);
+}
+[data-link][data-color='loss'] {
+	color: var(--color-loss-text);
+}
+
+[data-link][data-variant='subtle'],
+[data-link][data-variant='plain'] {
+	color: inherit;
+}
+
+/* Underline behaviour. `data-underline` overrides the variant default. */
+[data-link][data-underline='always'] {
+	text-decoration: underline;
+	text-decoration-thickness: 1px;
+	text-underline-offset: 2px;
+}
+
+[data-link][data-underline='hover']:hover,
+[data-link][data-underline='hover']:focus-visible {
+	text-decoration: underline;
+	text-decoration-thickness: 1px;
+	text-underline-offset: 2px;
+}
+
+[data-link][data-underline='none'] {
+	text-decoration: none;
+}
+
+[data-link][data-variant='plain'][data-underline='hover']:hover,
+[data-link][data-variant='plain'][data-underline='hover']:focus-visible {
+	text-decoration: none;
+}
+
+[data-link]:hover {
+	color: var(--color-primary-solid-hover);
+}
+[data-link][data-variant='subtle']:hover,
+[data-link][data-variant='plain']:hover {
+	color: inherit;
+	opacity: 0.85;
+}
+
+[data-link]:active {
+	color: var(--color-primary-active);
+}
+
+[data-link]:focus-visible {
+	outline: 2px solid var(--color-primary-solid);
+	outline-offset: 2px;
+}
+
+[data-link][data-disabled] {
+	cursor: not-allowed;
+	opacity: 0.5;
+	pointer-events: none;
+}
+
+[data-link-external-icon] {
+	width: 0.85em;
+	height: 0.85em;
+	fill: currentColor;
+	flex-shrink: 0;
+}
+
+[data-link-sr-only] {
+	position: absolute;
+	width: 1px;
+	height: 1px;
+	padding: 0;
+	margin: -1px;
+	overflow: hidden;
+	clip: rect(0, 0, 0, 0);
+	white-space: nowrap;
+	border: 0;
+}
diff --git a/src/uix/eidos/components/link/link.svelte b/src/uix/eidos/components/link/link.svelte
new file mode 100644
index 000000000..b8f0557ed
--- /dev/null
+++ b/src/uix/eidos/components/link/link.svelte
@@ -0,0 +1,96 @@
+<script lang="ts">
+	/**
+	 * Eidos `<Link>` — inline text link.
+	 *
+	 *   <p>Read the <Link href="/docs">docs</Link>.</p>
+	 *   <Link href="https://github.com/" external>GitHub</Link>
+	 *   <Link variant="subtle" underline="always">Tertiary nav</Link>
+	 *
+	 * Renders `<a>` by default — or `<span aria-disabled>` when
+	 * `disabled` — so the link composes inline within any prose.
+	 * Inherits the ambient typography; only color / underline / size
+	 * are local concerns.
+	 */
+	import { ActiveEidos } from '$uix/eidos';
+	import type { LinkProps } from './types';
+
+	let {
+		href,
+		external = false,
+		variant,
+		underline,
+		size,
+		color,
+		disabled = false,
+		tagStyle,
+		class: className,
+		children,
+		...restProps
+	}: LinkProps = $props();
+
+	const eidos = ActiveEidos.require();
+
+	const resolvedVariant = $derived(eidos.resolve(variant) ?? 'default');
+	const resolvedUnderline = $derived(eidos.resolve(underline) ?? 'hover');
+	const resolvedColor = $derived(eidos.resolve(color) ?? 'primary');
+
+	function pushVar(decls: string[], name: string, value: string | undefined): void {
+		if (!value) return;
+		decls.push(`${name}: ${value};`);
+	}
+
+	const inlineStyle = $derived.by(() => {
+		const decls: string[] = [];
+		const sizeKey = eidos.resolve(size);
+		if (sizeKey) {
+			pushVar(decls, '--_link-font-size', `var(--font-size-${sizeKey})`);
+			pushVar(decls, '--_link-line-height', `var(--font-line-height-${sizeKey})`);
+		}
+		const inline = decls.join(' ');
+		return [inline, tagStyle].filter(Boolean).join(' ');
+	});
+
+	const externalAttrs = $derived(
+		external ? { target: '_blank', rel: 'noopener noreferrer' } : {}
+	);
+</script>
+
+{#if disabled}
+	<!-- Drop anchor-specific attributes when rendering the disabled span. -->
+	<span
+		{...(restProps as Record<string, unknown>)}
+		class={className}
+		data-link=""
+		data-variant={resolvedVariant}
+		data-underline={resolvedUnderline}
+		data-color={resolvedColor}
+		data-disabled=""
+		aria-disabled="true"
+		style={inlineStyle}
+	>
+		{@render children?.()}
+	</span>
+{:else}
+	<a
+		{href}
+		{...restProps}
+		{...externalAttrs}
+		class={className}
+		data-link=""
+		data-variant={resolvedVariant}
+		data-underline={resolvedUnderline}
+		data-color={resolvedColor}
+		data-external={external ? '' : undefined}
+		style={inlineStyle}
+	>
+		{@render children?.()}
+		{#if external}
+			<svg data-link-external-icon viewBox="0 0 24 24" aria-hidden="true" focusable="false">
+				<path
+					d="M14 3h7v7h-2V6.41l-9.29 9.3-1.42-1.42L17.59 5H14V3zM5 5h6v2H7v10h10v-4h2v6H5V5z"
+				/>
+			</svg>
+			<span data-link-sr-only>(opens in new tab)</span>
+		{/if}
+	</a>
+{/if}
diff --git a/src/uix/eidos/components/link/types.ts b/src/uix/eidos/components/link/types.ts
new file mode 100644
index 000000000..6e8703646
--- /dev/null
+++ b/src/uix/eidos/components/link/types.ts
@@ -0,0 +1,45 @@
+import type { Snippet } from 'svelte';
+import type { HTMLAnchorAttributes } from 'svelte/elements';
+import type { ColorRole, ResponsiveProp } from '$uix/eidos/lib/types';
+
+/** Visual variant. `default` = colored underline-on-hover, `subtle` = inherits color, `plain` = no underline ever. */
+export type LinkVariant = 'default' | 'subtle' | 'plain';
+
+/** Underline behavior. */
+export type LinkUnderline = 'none' | 'hover' | 'always';
+
+/** Size override. */
+export type LinkSize = 'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl';
+
+/** Intent color slot. */
+export type LinkColor = ColorRole;
+
+export type LinkProps = Omit<HTMLAnchorAttributes, 'href' | 'children' | 'style'> & {
+	/** Target URL. Omit to render without href (still a focusable anchor). */
+	href?: string;
+	/**
+	 * When `true`, adds `target="_blank"` + `rel="noopener noreferrer"`
+	 * and a screen-reader-only "opens in new tab" affordance.
+	 * @default false
+	 */
+	external?: boolean;
+	/** @default 'default' */
+	variant?: ResponsiveProp<LinkVariant>;
+	/** @default 'hover' */
+	underline?: ResponsiveProp<LinkUnderline>;
+	/** Size override — defaults to inheriting ambient typography. */
+	size?: ResponsiveProp<LinkSize>;
+	/** Intent color. @default 'primary' */
+	color?: ResponsiveProp<LinkColor>;
+	/**
+	 * Disable the link: renders a `<span aria-disabled>` instead of
+	 * `<a>`, drops the href, and suppresses pointer events.
+	 * @default false
+	 */
+	disabled?: boolean;
+	/** Extra inline style. */
+	tagStyle?: string;
+	/** Extra class names. */
+	class?: string;
+	children?: Snippet;
+};
diff --git a/src/uix/eidos/components/mark/README.md b/src/uix/eidos/components/mark/README.md
new file mode 100644
index 000000000..38d6ed434
--- /dev/null
+++ b/src/uix/eidos/components/mark/README.md
@@ -0,0 +1,87 @@
+# Eidos Mark
+
+Inline text highlight primitive. Renders `<mark>` with a soft background
+tint per intent color. Inherits the ambient typography so it composes
+seamlessly inside Text / Heading / Code. For substring highlighting
+of search-result hits, see the higher-level `<Highlight>` primitive
+which scans a string and wraps matches in Mark.
+
+## Superficie
+
+```svelte
+<p>Lorem ipsum <Mark>dolor sit</Mark> amet.</p>
+<p>This is <Mark color="threat">important</Mark>.</p>
+<p>And this is <Mark color="affirm">confirmed</Mark>.</p>
+```
+
+## Baseline
+
+Origen: `air/components/typography/mark` (rama `morfo-runtime`).
+Adaptaciones para eidos:
+
+- **Palette canonized**: air shipped `yellow / green / blue / red /
+  purple` (literal hue names). Eidos maps to the intent vocabulary
+  (`primary / secondary / neutral / affirm / fulfill / risk / threat /
+  loss`) so the highlight respects the theme contract and changes
+  with the active theme.
+- **Default `fulfill`**: closest to the legacy "yellow" — search-hit
+  affordance. Air defaulted to `yellow`.
+- **Tokens**: `--air-mark-bg-{hue}` → `--color-{intent}-element` from
+  the foundation contract.
+- **Inherits typography**: no own font-* declarations. Air did the
+  same — Mark decorates, doesn't replace, the typography of its
+  parent.
+
+## Comparativa
+
+| Capacidad | UIX Mark | Radix Themes Mark | Chakra Mark | Mantine Mark |
+| --- | --- | --- | --- | --- |
+| Inline `<mark>` element | Sí | Sí | uses Highlight | Sí |
+| Color palette | Intent (8 roles) | accent + intent | colorScheme | intent |
+| Default color | fulfill | yellow accent | yellow | yellow |
+| Inherits typography | Sí | Sí | Sí | Sí |
+| `as` polymorphism | Sí | Sí | Sí | Sí |
+
+## Decisiones
+
+- **Intent palette**: Mark is a highlight in the design system's
+  vocabulary, not a "color" surface. Locking to `ColorRole` keeps
+  the contrast contract and lets the highlight follow the theme.
+- **Default `fulfill`**: the closest semantic to "search result hit"
+  / "found this" affordance. If the user wants a deliberate
+  attention-grab, they pass `color="threat"` or `color="risk"`.
+- **`color: var(--color-{role}-text)`**: ensures legibility on the
+  tinted background; the contrast contract from the foundation
+  guarantees WCAG AA.
+- **Tag defaults to `<mark>`**: HTML's native highlight element.
+  Screen readers announce mark content with an "emphasized" hint
+  in some configs — but as a hint only; consumers shouldn't rely
+  on it for meaningful semantics. For required emphasis, use
+  `<strong>` or `<em>`.
+
+## Eventos Sema
+
+Mark declara 0 eventos. Visual-only — el highlight es un decorador
+inline.
+
+## Gaps
+
+| Gap | Disposición | Detalle |
+| --- | --- | --- |
+| Free hex / CSS color | **descartar** | Rompe contrato de contraste con theme. Escape hatch vía `tagStyle`. |
+| Underline-only variant (no fill) | **diferir** | Si emerge demanda, añadir `variant: 'fill' | 'underline'`. |
+| Strikethrough variant | **descartar** | No es highlight; usar Text con `text-decoration: line-through`. |
+| Animated entry (e.g. flash) | **diferir** | Composable vía sema-driven CSS animations en un componente padre. |
+
+## Referencias
+
+- Radix Themes (no Mark, but accent docs): https://www.radix-ui.com/themes
+- Mantine Mark: https://mantine.dev/core/mark/
+- MDN `<mark>`: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/mark
+
+## Passive justification
+
+Visual-only (`scope: ['eidos']`). Una sola part Provider, marker
+`[data-mark]`. Sin estados, sin keyboard, sin ARIA propia. La recipe
+consume `--color-{intent}-element` + `--color-{intent}-text` del
+foundation contract.
diff --git a/src/uix/eidos/components/mark/index.ts b/src/uix/eidos/components/mark/index.ts
new file mode 100644
index 000000000..8f39594dc
--- /dev/null
+++ b/src/uix/eidos/components/mark/index.ts
@@ -0,0 +1,18 @@
+// Mark — eidos single-component highlight primitive.
+//
+//   import { Mark } from '$uix/eidos/components/mark';
+//
+//   <p>Lorem <Mark>highlighted</Mark> ipsum.</p>
+//   <Mark color="threat">Warning</Mark>
+//
+// Single-component primitive — `<Mark>` IS the root. Renders as
+// `<mark>` by default.
+import MarkComponent from './mark.svelte';
+
+const Mark = MarkComponent;
+
+export { Mark };
+
+export default Mark;
+
+export type { MarkProps, MarkColor } from './types';
diff --git a/src/uix/eidos/components/mark/mark.css b/src/uix/eidos/components/mark/mark.css
new file mode 100644
index 000000000..1ab9b7341
--- /dev/null
+++ b/src/uix/eidos/components/mark/mark.css
@@ -0,0 +1,50 @@
+/*
+ * Mark recipe — inline text highlight.
+ *
+ * Inherits ambient typography (no own font-* declarations). Decorates
+ * with a soft background tint + light padding so the highlight reads
+ * without breaking the line height. The intent palette is the full
+ * `ColorRole` union via `data-color`.
+ */
+
+[data-mark] {
+	font: inherit;
+	color: inherit;
+	background: var(--color-fulfill-element);
+	padding-inline: 0.16em;
+	padding-block: 0.04em;
+	border-radius: var(--radius-sm);
+}
+
+[data-mark][data-color='primary'] {
+	background: var(--color-primary-element);
+	color: var(--color-primary-text);
+}
+[data-mark][data-color='secondary'] {
+	background: var(--color-secondary-element);
+	color: var(--color-secondary-text);
+}
+[data-mark][data-color='neutral'] {
+	background: var(--color-neutral-element);
+	color: var(--color-neutral-text);
+}
+[data-mark][data-color='affirm'] {
+	background: var(--color-affirm-element);
+	color: var(--color-affirm-text);
+}
+[data-mark][data-color='fulfill'] {
+	background: var(--color-fulfill-element);
+	color: var(--color-fulfill-text);
+}
+[data-mark][data-color='risk'] {
+	background: var(--color-risk-element);
+	color: var(--color-risk-text);
+}
+[data-mark][data-color='threat'] {
+	background: var(--color-threat-element);
+	color: var(--color-threat-text);
+}
+[data-mark][data-color='loss'] {
+	background: var(--color-loss-element);
+	color: var(--color-loss-text);
+}
diff --git a/src/uix/eidos/components/mark/mark.svelte b/src/uix/eidos/components/mark/mark.svelte
new file mode 100644
index 000000000..0f26a09f0
--- /dev/null
+++ b/src/uix/eidos/components/mark/mark.svelte
@@ -0,0 +1,38 @@
+<script lang="ts">
+	/**
+	 * Eidos `<Mark>` — text highlight.
+	 *
+	 *   <p>Lorem ipsum <Mark>dolor sit</Mark> amet.</p>
+	 *   <p>This is <Mark color="threat">important</Mark>.</p>
+	 *
+	 * Renders `<mark>` with a soft tint per intent color. Inherits the
+	 * ambient typography (no own style scale) and just decorates the
+	 * background + padding.
+	 */
+	import { ActiveEidos } from '$uix/eidos';
+	import type { MarkProps } from './types';
+
+	let {
+		color,
+		as = 'mark',
+		tagStyle,
+		class: className,
+		children,
+		...restProps
+	}: MarkProps = $props();
+
+	const eidos = ActiveEidos.require();
+
+	const resolvedColor = $derived(eidos.resolve(color) ?? 'fulfill');
+</script>
+
+<svelte:element
+	this={as}
+	{...restProps}
+	class={className}
+	data-mark=""
+	data-color={resolvedColor}
+	style={tagStyle}
+>
+	{@render children?.()}
+</svelte:element>
diff --git a/src/uix/eidos/components/mark/types.ts b/src/uix/eidos/components/mark/types.ts
new file mode 100644
index 000000000..ee7afe354
--- /dev/null
+++ b/src/uix/eidos/components/mark/types.ts
@@ -0,0 +1,18 @@
+import type { Snippet } from 'svelte';
+import type { HTMLAttributes } from 'svelte/elements';
+import type { ColorRole, ResponsiveProp } from '$uix/eidos/lib/types';
+
+/** Intent palette for the highlight tint. */
+export type MarkColor = ColorRole;
+
+export type MarkProps = Omit<HTMLAttributes<HTMLElement>, 'style' | 'children'> & {
+	/** Intent palette for the highlight tint. @default 'fulfill' */
+	color?: ResponsiveProp<MarkColor>;
+	/** Render a different tag. @default 'mark' */
+	as?: string;
+	/** Extra inline style. */
+	tagStyle?: string;
+	/** Extra class names. */
+	class?: string;
+	children?: Snippet;
+};
diff --git a/src/uix/eidos/index.css b/src/uix/eidos/index.css
index f4e0cf1d4..e84570b11 100644
--- a/src/uix/eidos/index.css
+++ b/src/uix/eidos/index.css
@@ -74,6 +74,14 @@
 @import './components/banner/banner.css';
 @import './components/float/float.css';
 @import './components/text/text.css';
+@import './components/heading/heading.css';
+@import './components/display/display.css';
+@import './components/code/code.css';
+@import './components/code-block/code-block.css';
+@import './components/kbd/kbd.css';
+@import './components/mark/mark.css';
+@import './components/highlight/highlight.css';
+@import './components/link/link.css';
 @import './components/icon/icon.css';
 @import './components/avatar/avatar.css';
 @import './components/breadcrumb/breadcrumb.css';
diff --git a/src/uix/morfo/components/code-block.ts b/src/uix/morfo/components/code-block.ts
new file mode 100644
index 000000000..91930c4a5
--- /dev/null
+++ b/src/uix/morfo/components/code-block.ts
@@ -0,0 +1,33 @@
+import type { Morfo } from '../types';
+
+/**
+ * CodeBlock — multi-line monospace block primitive.
+ *
+ * Eidos-native: renders a `<pre>` shell with an inner `<code>` element.
+ * Optionally ships a header strip (title + language badge + copy button).
+ * The copy action is a plain button — it does NOT belong to Sema (it's a
+ * utility, not a semantic event surface). If the consumer wants
+ * semantic copy events they can wrap the block in a Toolbar or Toast
+ * affordance.
+ *
+ * Passive — single Provider part. The copy button is a leaf inside the
+ * recipe's chrome; it doesn't widen the morfo's surface because the
+ * 2-of-3 rule (only eidos consumes it) drops it from morfo.
+ */
+export const codeBlockMorfo = {
+	name: 'CodeBlock',
+	kebab: 'code-block',
+	scope: ['eidos'],
+	parts: [
+		{
+			name: 'Provider',
+			kebab: 'provider',
+			archetype: 'provider',
+			kind: 'public',
+			defaultElement: 'div',
+			optional: false,
+			data: [],
+			aria: []
+		}
+	]
+} as const satisfies Morfo;
diff --git a/src/uix/morfo/components/code.ts b/src/uix/morfo/components/code.ts
new file mode 100644
index 000000000..58bb9da02
--- /dev/null
+++ b/src/uix/morfo/components/code.ts
@@ -0,0 +1,29 @@
+import type { Morfo } from '../types';
+
+/**
+ * Code — inline monospace text primitive.
+ *
+ * Eidos-native: renders `<code>` by default applying the foundation's
+ * `--style-code-*` tokens. Sits inline within prose — for keywords,
+ * identifiers, file names. Multi-line code blocks use the separate
+ * `<CodeBlock>` primitive.
+ *
+ * Passive — no semantic events.
+ */
+export const codeMorfo = {
+	name: 'Code',
+	kebab: 'code',
+	scope: ['eidos'],
+	parts: [
+		{
+			name: 'Provider',
+			kebab: 'provider',
+			archetype: 'provider',
+			kind: 'public',
+			defaultElement: 'span',
+			optional: false,
+			data: [],
+			aria: []
+		}
+	]
+} as const satisfies Morfo;
diff --git a/src/uix/morfo/components/display.ts b/src/uix/morfo/components/display.ts
new file mode 100644
index 000000000..b08a03e76
--- /dev/null
+++ b/src/uix/morfo/components/display.ts
@@ -0,0 +1,30 @@
+import type { Morfo } from '../types';
+
+/**
+ * Display — hero / oversize typography primitive.
+ *
+ * Eidos-native: a single shell that renders `<h1>` by default and applies
+ * the foundation's `--style-hero-*` tokens. Smaller scope than Heading —
+ * for the page's "display" title (above an `<h1>` headline). The `as`
+ * prop can switch the rendered tag when display typography is needed
+ * outside heading semantics (e.g. a marketing landing pull-quote).
+ *
+ * Passive — no semantic events. Display is purely a styled inline shell.
+ */
+export const displayMorfo = {
+	name: 'Display',
+	kebab: 'display',
+	scope: ['eidos'],
+	parts: [
+		{
+			name: 'Provider',
+			kebab: 'provider',
+			archetype: 'provider',
+			kind: 'public',
+			defaultElement: 'span',
+			optional: false,
+			data: [],
+			aria: []
+		}
+	]
+} as const satisfies Morfo;
diff --git a/src/uix/morfo/components/heading.ts b/src/uix/morfo/components/heading.ts
new file mode 100644
index 000000000..b60df715d
--- /dev/null
+++ b/src/uix/morfo/components/heading.ts
@@ -0,0 +1,34 @@
+import type { Morfo } from '../types';
+
+/**
+ * Heading — semantic heading (h1..h6) typography primitive.
+ *
+ * Eidos-native: a single shell that renders `<h{level}>` and applies one of
+ * the named foundation styles (`h1`..`h6`) via the `--style-h{n}-*` tokens
+ * the foundation emits. The `level` prop drives semantics; the `style` prop
+ * drives visual weight — they default to the same value but can be
+ * decoupled (`<Heading level={3} style="h1">` for a visual h1 with
+ * semantic h3).
+ *
+ * Passive — no semantic events. Heading is a styled inline-block shell that
+ * does not commit, emerge, or react. Components that animate headings on
+ * appearance compose Heading inside an interactive primitive (dialog,
+ * collapsible) which owns the relevant sema verbs.
+ */
+export const headingMorfo = {
+	name: 'Heading',
+	kebab: 'heading',
+	scope: ['eidos'],
+	parts: [
+		{
+			name: 'Provider',
+			kebab: 'provider',
+			archetype: 'provider',
+			kind: 'public',
+			defaultElement: 'span',
+			optional: false,
+			data: [],
+			aria: []
+		}
+	]
+} as const satisfies Morfo;
diff --git a/src/uix/morfo/components/highlight.ts b/src/uix/morfo/components/highlight.ts
new file mode 100644
index 000000000..94617a931
--- /dev/null
+++ b/src/uix/morfo/components/highlight.ts
@@ -0,0 +1,28 @@
+import type { Morfo } from '../types';
+
+/**
+ * Highlight — substring highlighter typography primitive.
+ *
+ * Eidos-native: wraps a `<span>` shell containing the input text with
+ * `<mark>` elements around each match of the `query` term(s). Composes
+ * inside any inline-flow primitive (Text, Heading, paragraph).
+ *
+ * Passive — no semantic events.
+ */
+export const highlightMorfo = {
+	name: 'Highlight',
+	kebab: 'highlight',
+	scope: ['eidos'],
+	parts: [
+		{
+			name: 'Provider',
+			kebab: 'provider',
+			archetype: 'provider',
+			kind: 'public',
+			defaultElement: 'span',
+			optional: false,
+			data: [],
+			aria: []
+		}
+	]
+} as const satisfies Morfo;
diff --git a/src/uix/morfo/components/kbd.ts b/src/uix/morfo/components/kbd.ts
new file mode 100644
index 000000000..89bfd881e
--- /dev/null
+++ b/src/uix/morfo/components/kbd.ts
@@ -0,0 +1,28 @@
+import type { Morfo } from '../types';
+
+/**
+ * Kbd — keyboard shortcut typography primitive.
+ *
+ * Eidos-native: renders `<kbd>` with a small chrome (border + bg + inner
+ * padding) so the key looks like a physical cap. Inline within prose
+ * — for shortcut hints, key sequences.
+ *
+ * Passive — no semantic events.
+ */
+export const kbdMorfo = {
+	name: 'Kbd',
+	kebab: 'kbd',
+	scope: ['eidos'],
+	parts: [
+		{
+			name: 'Provider',
+			kebab: 'provider',
+			archetype: 'provider',
+			kind: 'public',
+			defaultElement: 'span',
+			optional: false,
+			data: [],
+			aria: []
+		}
+	]
+} as const satisfies Morfo;
diff --git a/src/uix/morfo/components/link.ts b/src/uix/morfo/components/link.ts
new file mode 100644
index 000000000..66e7d4464
--- /dev/null
+++ b/src/uix/morfo/components/link.ts
@@ -0,0 +1,34 @@
+import type { Morfo } from '../types';
+
+/**
+ * Link — inline text link typography primitive.
+ *
+ * Eidos-native: renders `<a>` by default (or `<span aria-disabled>` when
+ * disabled). Inherits ambient typography — no own `style` prop — so it
+ * composes mid-paragraph without breaking the text scale. Visual
+ * variants drive the underline + color treatment.
+ *
+ * Passive on the morfo surface: Link has hover/active visual states but
+ * no semantic events. Click / navigation is the consumer's
+ * responsibility (SvelteKit `<a>`, custom router, sema-driven actions
+ * on the surrounding component). When Link is used as a button-style
+ * affordance (form submit, dialog action), the consumer should wrap a
+ * `<Toolbar.Button>` instead — that surface owns the sema commit.
+ */
+export const linkMorfo = {
+	name: 'Link',
+	kebab: 'link',
+	scope: ['eidos'],
+	parts: [
+		{
+			name: 'Provider',
+			kebab: 'provider',
+			archetype: 'provider',
+			kind: 'public',
+			defaultElement: 'a',
+			optional: false,
+			data: [],
+			aria: []
+		}
+	]
+} as const satisfies Morfo;
diff --git a/src/uix/morfo/components/mark.ts b/src/uix/morfo/components/mark.ts
new file mode 100644
index 000000000..519e668c4
--- /dev/null
+++ b/src/uix/morfo/components/mark.ts
@@ -0,0 +1,29 @@
+import type { Morfo } from '../types';
+
+/**
+ * Mark — text highlight typography primitive.
+ *
+ * Eidos-native: renders `<mark>` with a soft background tint per intent
+ * color. Inline within prose — for emphasis, search-result hits, and
+ * other visual highlights that aren't semantically `<strong>` or
+ * `<em>`.
+ *
+ * Passive — no semantic events.
+ */
+export const markMorfo = {
+	name: 'Mark',
+	kebab: 'mark',
+	scope: ['eidos'],
+	parts: [
+		{
+			name: 'Provider',
+			kebab: 'provider',
+			archetype: 'provider',
+			kind: 'public',
+			defaultElement: 'span',
+			optional: false,
+			data: [],
+			aria: []
+		}
+	]
+} as const satisfies Morfo;
diff --git a/web/routes/uix/+layout@.svelte b/web/routes/uix/+layout@.svelte
index 64bf33319..732d83887 100644
--- a/web/routes/uix/+layout@.svelte
+++ b/web/routes/uix/+layout@.svelte
@@ -200,7 +200,17 @@
 		{
 			kind: 'group',
 			heading: 'Typography',
-			items: [{ slug: '/uix/components/text', label: 'Text' }]
+			items: [
+				{ slug: '/uix/components/text', label: 'Text' },
+				{ slug: '/uix/components/heading', label: 'Heading' },
+				{ slug: '/uix/components/display', label: 'Display' },
+				{ slug: '/uix/components/code', label: 'Code' },
+				{ slug: '/uix/components/code-block', label: 'CodeBlock' },
+				{ slug: '/uix/components/kbd', label: 'Kbd' },
+				{ slug: '/uix/components/mark', label: 'Mark' },
+				{ slug: '/uix/components/highlight', label: 'Highlight' },
+				{ slug: '/uix/components/link', label: 'Link' }
+			]
 		},
 		{
 			kind: 'group',
diff --git a/web/routes/uix/components/code-block/+page.svelte b/web/routes/uix/components/code-block/+page.svelte
new file mode 100644
index 000000000..a4d41ca1f
--- /dev/null
+++ b/web/routes/uix/components/code-block/+page.svelte
@@ -0,0 +1,402 @@
+<script lang="ts">
+	import {
+		CodeBlock,
+		type CodeBlockVariant,
+		type CodeBlockSize
+	} from '$uix/eidos/components/code-block';
+	import { compileMorfo } from '$uix/morfo';
+	import { codeBlockMorfo } from '@/uix/morfo/components/code-block';
+
+	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type TraceEntry = { event: string; family: string; intent?: string; at: number };
+	let tab = $state<Tab>('live');
+	let trace = $state<TraceEntry[]>([]);
+	let stageRef = $state<HTMLElement | null>(null);
+
+	let variant = $state<CodeBlockVariant>('surface');
+	let size = $state<CodeBlockSize | ''>('');
+	let title = $state<string>('example.ts');
+	let language = $state<string>('ts');
+	let showCopy = $state(true);
+	let content = $state<string>(
+		`import { CodeBlock } from '$uix/eidos/components/code-block';\n\nexport function example() {\n  return 42;\n}`
+	);
+
+	const variants: CodeBlockVariant[] = ['surface', 'outline', 'ghost'];
+	const sizes: CodeBlockSize[] = ['xxs', 'xs', 'sm', 'md', 'lg', 'xl'];
+
+	const compiled = compileMorfo(codeBlockMorfo);
+	const partsList = $derived([...compiled.parts.byKebab.values()]);
+	const events = $derived([...compiled.actions.byName.values()]);
+
+	$effect(() => {
+		const el = stageRef;
+		if (!el) return;
+		const obs = new MutationObserver((mutations) => {
+			for (const m of mutations) {
+				if (m.attributeName !== 'data-event') continue;
+				const target = m.target as Element;
+				const ev = target.getAttribute('data-event');
+				if (!ev) continue;
+				trace = [
+					{
+						event: ev,
+						family: target.getAttribute('data-event-family') ?? '—',
+						intent: target.getAttribute('data-event-intent') ?? undefined,
+						at: Date.now()
+					},
+					...trace
+				].slice(0, 6);
+			}
+		});
+		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
+		return () => obs.disconnect();
+	});
+
+	const somaSnippet = $derived(
+		[
+			'<!-- CodeBlock is eidos-native — no soma layer. -->',
+			'<!-- Equivalent markup: -->',
+			'',
+			'<div',
+			'  data-code-block',
+			`  data-variant="${variant}"`,
+			'>',
+			'  <div data-code-block-header>',
+			title && `    <span data-code-block-title>${title}</span>`,
+			language && `    <span data-code-block-lang>${language}</span>`,
+			showCopy && '    <button data-code-block-copy>Copy</button>',
+			'  </div>',
+			'  <pre data-code-block-pre>',
+			'    <code data-code-block-code>',
+			'      …',
+			'    </code>',
+			'  </pre>',
+			'</div>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+
+	const eidosSnippet = $derived(
+		[
+			"<script lang='ts'>",
+			"  import { CodeBlock } from '$uix/eidos/components/code-block';",
+			'</' + 'script>',
+			'',
+			'<CodeBlock',
+			variant !== 'surface' && `  variant="${variant}"`,
+			size && `  size="${size}"`,
+			title && `  title="${title}"`,
+			language && `  language="${language}"`,
+			!showCopy && '  showCopy={false}',
+			'>',
+			'  {`' + content.replace(/`/g, '\\`') + '`}',
+			'</CodeBlock>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+</script>
+
+<div data-uix-canvas-inner>
+	<header>
+		<div data-uix-eyebrow>Typography · CodeBlock</div>
+		<h1 data-uix-page-title>CodeBlock</h1>
+		<p data-uix-page-lede>
+			Multi-line code block primitive. Renders a <code>{`<div>`}</code> shell wrapping a
+			<code>{`<pre><code>`}</code>
+			body, with an optional header strip carrying title, language badge, and copy-to-clipboard
+			button. The copy button is a leaf utility — it does not emit Sema events. Single morfo
+			part. Eidos-native: no soma backing, no semantic events.
+		</p>
+		<div data-uix-page-meta>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>events</span>0
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>variants</span>3
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>copy</span>opt-in
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>scope</span>eidos
+			</span>
+		</div>
+	</header>
+
+	<div data-uix-stage>
+		<div data-uix-stage-area bind:this={stageRef}>
+			<div style="max-inline-size: 42rem;">
+				<CodeBlock
+					{variant}
+					size={size || undefined}
+					title={title || undefined}
+					language={language || undefined}
+					{showCopy}
+				>
+					{content}
+				</CodeBlock>
+			</div>
+		</div>
+		<div data-uix-stage-trace>
+			<span data-uix-stage-trace-key>trace</span>
+			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
+			<span style="color: var(--uix-text-faint)">·</span>
+			<span data-uix-stage-trace-key>variant</span>
+			<span>{variant}</span>
+			<span style="margin-inline-start: auto;">
+				<span data-uix-stage-trace-key>language</span> {language || 'none'} ·
+				<span data-uix-stage-trace-key>copy</span> {showCopy ? 'on' : 'off'}
+			</span>
+		</div>
+	</div>
+
+	<div data-uix-tabs role="tablist">
+		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
+		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
+			API <span data-uix-tab-count>7</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
+			<span data-uix-layer-badge="morfo">morfo</span>
+			<span data-uix-tab-count>{partsList.length}p · 0e</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
+			<span data-uix-layer-badge="sema">sema</span>
+			<span data-uix-tab-count>{events.length}</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}
+			>Recipe</button
+		>
+		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
+	</div>
+
+	{#if tab === 'live'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Controls</h2>
+			<p data-uix-section-desc>
+				CodeBlock is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. The
+				<code>variant</code>
+				picks chrome; the header strip auto-renders when <code>title</code>, <code>language</code>,
+				or <code>showCopy</code> is present.
+			</p>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> props · block + header
+			</div>
+			<div data-uix-controls>
+				<label data-uix-control>
+					<span data-uix-control-label>variant</span>
+					<span data-uix-chips role="radiogroup">
+						{#each variants as opt}
+							<button data-uix-chip data-active={variant === opt} onclick={() => (variant = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>size</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={size === ''} onclick={() => (size = '')}
+							>inherit</button
+						>
+						{#each sizes as opt}
+							<button data-uix-chip data-active={size === opt} onclick={() => (size = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>title</span>
+					<input type="text" bind:value={title} style="inline-size: 14rem;" />
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>language</span>
+					<input type="text" bind:value={language} style="inline-size: 10rem;" />
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>showCopy</span>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={showCopy} />
+						<span data-uix-switch-label>{showCopy ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control style="grid-column: span 2;">
+					<span data-uix-control-label>content</span>
+					<textarea
+						bind:value={content}
+						rows="4"
+						style="inline-size: 100%; font-family: var(--font-family-mono); font-size: var(--font-size-sm);"
+					></textarea>
+				</label>
+			</div>
+
+			<div data-uix-code>
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="soma">soma</span>
+					<span>n/a · code-block is eidos-native — equivalent markup shown</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{somaSnippet}</code></pre>
+			</div>
+
+			<div data-uix-code style="margin-top: var(--uix-space-3);">
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="eidos">eidos</span>
+					<span>visual · variant + header composition</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{eidosSnippet}</code></pre>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'api'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>API reference</h2>
+			<p data-uix-section-desc>
+				CodeBlock ships a structural shell with an optional header (title + language badge + copy
+				button) and a <code>{`<pre><code>`}</code> body. Composition over visibility: omit
+				<code>title</code> + <code>language</code> + set <code>showCopy=false</code> to drop the
+				header entirely.
+			</p>
+
+			<div data-uix-subsection-head>Props</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">title</td><td class="type">string</td><td class="default">—</td><td>Filename / label. Appears in the header.</td></tr>
+						<tr><td class="name">language</td><td class="type">string</td><td class="default">—</td><td>Language badge. Stamped as <code>data-language</code> on inner <code>{`<code>`}</code>.</td></tr>
+						<tr><td class="name">showCopy</td><td class="type">boolean</td><td class="default">true</td><td>Render the copy-to-clipboard button.</td></tr>
+						<tr><td class="name">variant</td><td class="type">'surface' | 'outline' | 'ghost'</td><td class="default">'surface'</td><td>Visual chrome.</td></tr>
+						<tr><td class="name">size</td><td class="type">'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl'</td><td class="default">inherit</td><td>Code font size override.</td></tr>
+						<tr><td class="name">tagStyle</td><td class="type">string</td><td class="default">—</td><td>Extra inline CSS.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Reference comparison</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
+					<tbody>
+						<tr><td class="name">radix-themes</td><td><code>&lt;Code&gt;</code> + custom</td><td>Radix has no dedicated multi-line surface — UIX ships the header + copy as built-in.</td></tr>
+						<tr><td class="name">chakra-ui</td><td>composed</td><td>Chakra composes Code + Box + IconButton; UIX bundles them.</td></tr>
+						<tr><td class="name">mantine</td><td><code>&lt;CodeHighlight&gt;</code></td><td>Mantine ships Shiki integration; UIX reserves <code>data-language</code> for a separate action.</td></tr>
+						<tr><td class="name">shadcn/ui</td><td>recipe-only</td><td>shadcn provides Tailwind classes; UIX ships a proper component.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'morfo'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Morfo contract</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Field</th><th>Value</th></tr></thead>
+					<tbody>
+						<tr><td class="name">name</td><td>{codeBlockMorfo.name}</td></tr>
+						<tr><td class="name">kebab</td><td><code>{codeBlockMorfo.kebab}</code></td></tr>
+						<tr><td class="name">scope</td><td>{codeBlockMorfo.scope.join(', ')}</td></tr>
+						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
+						<tr><td class="name">events</td><td>0</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Parts</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead
+						><tr
+							><th>kebab</th><th>marker</th><th>element</th><th>archetype</th><th>optional</th
+							></tr
+						></thead
+					>
+					<tbody>
+						{#each partsList as part}
+							<tr>
+								<td class="name">{part.kebab}</td>
+								<td><code data-uix-part-marker>[{part.marker}]</code></td>
+								<td class="type">&lt;{part.defaultElement}&gt;</td>
+								<td class="type">{part.archetype}</td>
+								<td class="default">{part.optional ? 'yes' : 'no'}</td>
+							</tr>
+						{/each}
+					</tbody>
+				</table>
+			</div>
+
+			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
+				The Provider stamps <code>data-code-block</code> + <code>data-variant</code>. Internal
+				header / copy / pre / code leaves are eidos-only attrs (<code>data-code-block-header</code>,
+				<code>data-code-block-title</code>, etc.) — the morfo declares only the Provider because
+				the inner parts are consumed exclusively by the recipe.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'sema'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>
+				<span data-uix-layer-badge="sema">sema</span> · events
+			</h2>
+			<p data-uix-section-desc>
+				CodeBlock declares no semantic events. The copy button is a utility leaf — clipboard
+				write, no semantic transition. By the 2-of-3 rule, a <code>commit-copy</code> event
+				would only be consumed by eidos (visual flip) — not enough to justify a morfo extension.
+				If a consumer needs sema on copy (e.g. fulfilment of a tutorial step), they compose
+				CodeBlock inside a Stepper or Form that owns the verb.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'recipe'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Eidos recipe</h2>
+			<p data-uix-section-desc>
+				Recipe lives in <code>src/uix/eidos/components/code-block/code-block.css</code>. The
+				outer shell selector is <code>[data-code-block]</code>; the header / pre / code leaves
+				use eidos-only attrs.
+			</p>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
+					<tbody>
+						<tr><td class="name"><code>[data-code-block]</code></td><td><span data-uix-tag data-kind="morfo">morfo</span></td><td>Provider marker.</td></tr>
+						<tr><td class="name"><code>{`[data-code-block][data-variant='surface'|'outline'|'ghost']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Chrome treatment.</td></tr>
+						<tr><td class="name"><code>[data-code-block-header]</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Title + lang + copy strip.</td></tr>
+						<tr><td class="name"><code>[data-code-block-copy]</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Copy button with <code>:hover</code> / <code>:focus-visible</code> / <code>[data-copied]</code> states.</td></tr>
+						<tr><td class="name"><code>[data-code-block-pre]</code> / <code>[data-code-block-code]</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Block body.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'a11y'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Accessibility</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
+					<tbody>
+						<tr><td class="name">Role</td><td>The block is a generic <code>{`<div>`}</code> wrapping <code>{`<pre><code>`}</code>. AT announce the code content.</td></tr>
+						<tr><td class="name">Copy button</td><td><code>aria-label="Copy code to clipboard"</code> in English. Focus ring via <code>:focus-visible</code>.</td></tr>
+						<tr><td class="name">Copied feedback</td><td>Button text flips from "Copy" to "Copied" + <code>data-copied</code> color shift. Re-announced by AT because the text content changes.</td></tr>
+						<tr><td class="name">Keyboard</td><td>Copy button reachable via Tab. Enter / Space activate. No custom keyboard contract.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+</div>
diff --git a/web/routes/uix/components/code/+page.svelte b/web/routes/uix/components/code/+page.svelte
new file mode 100644
index 000000000..7972c642a
--- /dev/null
+++ b/web/routes/uix/components/code/+page.svelte
@@ -0,0 +1,423 @@
+<script lang="ts">
+	import {
+		Code,
+		type CodeVariant,
+		type CodeSize,
+		type CodeColor
+	} from '$uix/eidos/components/code';
+	import { compileMorfo } from '$uix/morfo';
+	import { codeMorfo } from '@/uix/morfo/components/code';
+
+	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type TraceEntry = { event: string; family: string; intent?: string; at: number };
+	let tab = $state<Tab>('live');
+	let trace = $state<TraceEntry[]>([]);
+	let stageRef = $state<HTMLElement | null>(null);
+
+	let variant = $state<CodeVariant>('plain');
+	let size = $state<CodeSize | ''>('');
+	let color = $state<CodeColor | ''>('');
+	let language = $state<string>('');
+	let content = $state<string>('npm run dev');
+
+	const variants: CodeVariant[] = ['plain', 'soft', 'outline'];
+	const sizes: CodeSize[] = ['xxs', 'xs', 'sm', 'md', 'lg', 'xl'];
+	const colors: CodeColor[] = ['primary', 'secondary', 'muted', 'disabled', 'on-solid'];
+
+	const compiled = compileMorfo(codeMorfo);
+	const partsList = $derived([...compiled.parts.byKebab.values()]);
+	const events = $derived([...compiled.actions.byName.values()]);
+
+	$effect(() => {
+		const el = stageRef;
+		if (!el) return;
+		const obs = new MutationObserver((mutations) => {
+			for (const m of mutations) {
+				if (m.attributeName !== 'data-event') continue;
+				const target = m.target as Element;
+				const ev = target.getAttribute('data-event');
+				if (!ev) continue;
+				trace = [
+					{
+						event: ev,
+						family: target.getAttribute('data-event-family') ?? '—',
+						intent: target.getAttribute('data-event-intent') ?? undefined,
+						at: Date.now()
+					},
+					...trace
+				].slice(0, 6);
+			}
+		});
+		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
+		return () => obs.disconnect();
+	});
+
+	const somaSnippet = $derived(
+		[
+			'<!-- Code is eidos-native — no soma layer. -->',
+			'<!-- Equivalent markup: -->',
+			'',
+			'<code',
+			'  data-code',
+			`  data-variant="${variant}"`,
+			language && `  data-language="${language}"`,
+			'>',
+			`  ${content}`,
+			'</code>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+
+	const eidosSnippet = $derived(
+		[
+			"<script lang='ts'>",
+			"  import { Code } from '$uix/eidos/components/code';",
+			'</' + 'script>',
+			'',
+			'<Code',
+			variant !== 'plain' && `  variant="${variant}"`,
+			size && `  size="${size}"`,
+			color && `  color="${color}"`,
+			language && `  language="${language}"`,
+			'>',
+			'  ' + content,
+			'</Code>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+</script>
+
+<div data-uix-canvas-inner>
+	<header>
+		<div data-uix-eyebrow>Typography · Code</div>
+		<h1 data-uix-page-title>Code</h1>
+		<p data-uix-page-lede>
+			Inline monospace text primitive. Renders <code>{`<code>`}</code> by default applying the
+			foundation's <code>--style-code-*</code> tokens. Sits inline within prose — for keywords,
+			identifiers, file names. Multi-line code blocks use the separate
+			<code>{`<CodeBlock>`}</code>
+			primitive. Single part. Eidos-native: no soma backing, no semantic events.
+		</p>
+		<div data-uix-page-meta>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>events</span>0
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>variants</span>3
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>sizes</span>6
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>scope</span>eidos
+			</span>
+		</div>
+	</header>
+
+	<div data-uix-stage>
+		<div data-uix-stage-area bind:this={stageRef}>
+			<p
+				style="max-inline-size: 38rem; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md); font: inherit;"
+			>
+				Run the command
+				<Code
+					{variant}
+					size={size || undefined}
+					color={color || undefined}
+					language={language || undefined}
+				>
+					{content}
+				</Code>
+				to start the dev server.
+			</p>
+		</div>
+		<div data-uix-stage-trace>
+			<span data-uix-stage-trace-key>trace</span>
+			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
+			<span style="color: var(--uix-text-faint)">·</span>
+			<span data-uix-stage-trace-key>variant</span>
+			<span>{variant}</span>
+			<span style="margin-inline-start: auto;">
+				<span data-uix-stage-trace-key>size</span> {size || 'inherit'} ·
+				<span data-uix-stage-trace-key>language</span> {language || 'none'}
+			</span>
+		</div>
+	</div>
+
+	<div data-uix-tabs role="tablist">
+		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
+		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
+			API <span data-uix-tab-count>7</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
+			<span data-uix-layer-badge="morfo">morfo</span>
+			<span data-uix-tab-count>{partsList.length}p · 0e</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
+			<span data-uix-layer-badge="sema">sema</span>
+			<span data-uix-tab-count>{events.length}</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}
+			>Recipe</button
+		>
+		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
+	</div>
+
+	{#if tab === 'live'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Controls</h2>
+			<p data-uix-section-desc>
+				Code is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. The
+				<code>variant</code>
+				picks chrome treatment; size + color override the foundation defaults.
+			</p>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> props · inline mono
+			</div>
+			<div data-uix-controls>
+				<label data-uix-control>
+					<span data-uix-control-label>variant</span>
+					<span data-uix-chips role="radiogroup">
+						{#each variants as opt}
+							<button data-uix-chip data-active={variant === opt} onclick={() => (variant = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>size</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={size === ''} onclick={() => (size = '')}
+							>inherit</button
+						>
+						{#each sizes as opt}
+							<button data-uix-chip data-active={size === opt} onclick={() => (size = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>color</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={color === ''} onclick={() => (color = '')}
+							>inherit</button
+						>
+						{#each colors as opt}
+							<button data-uix-chip data-active={color === opt} onclick={() => (color = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>language <span data-uix-control-hint>reserved hint (data-language)</span></span
+					>
+					<input
+						type="text"
+						bind:value={language}
+						placeholder="ts, bash, json..."
+						style="inline-size: 12rem;"
+					/>
+				</label>
+				<label data-uix-control style="grid-column: span 2;">
+					<span data-uix-control-label>content</span>
+					<input type="text" bind:value={content} style="inline-size: 100%; font: inherit;" />
+				</label>
+			</div>
+
+			<div data-uix-code>
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="soma">soma</span>
+					<span>n/a · code is eidos-native — equivalent markup shown</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{somaSnippet}</code></pre>
+			</div>
+
+			<div data-uix-code style="margin-top: var(--uix-space-3);">
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="eidos">eidos</span>
+					<span>visual · variant + axis overrides</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{eidosSnippet}</code></pre>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'api'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>API reference</h2>
+			<p data-uix-section-desc>
+				Code wraps inline monospace text. <code>variant='plain'</code> is the bare default;
+				<code>'soft'</code> and <code>'outline'</code> add chrome for surfacing from surrounding
+				prose.
+			</p>
+
+			<div data-uix-subsection-head>Props</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">variant</td><td class="type">'plain' | 'soft' | 'outline'</td><td class="default">'plain'</td><td>Visual chrome.</td></tr>
+						<tr><td class="name">size</td><td class="type">'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl'</td><td class="default">inherit</td><td>Maps to <code>{`var(--font-size-{key})`}</code>.</td></tr>
+						<tr><td class="name">color</td><td class="type">'primary' | 'secondary' | 'muted' | 'disabled' | 'on-solid'</td><td class="default">inherit</td><td>Content-role color slot.</td></tr>
+						<tr><td class="name">language</td><td class="type">string</td><td class="default">—</td><td>Reserved hint for future syntax-highlighting. Stamped as <code>data-language</code>.</td></tr>
+						<tr><td class="name">as</td><td class="type">string</td><td class="default">'code'</td><td>Override rendered tag.</td></tr>
+						<tr><td class="name">tagStyle</td><td class="type">string</td><td class="default">—</td><td>Extra inline CSS.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Composability examples</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Use case</th><th>Snippet</th></tr></thead>
+					<tbody>
+						<tr>
+							<td class="name">Inline command</td>
+							<td><code>{`<p>Run <Code>npm run dev</Code></p>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Soft-pill identifier</td>
+							<td><code>{`<Code variant="soft">USER_ID</Code>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Outline shortcut hint</td>
+							<td><code>{`<Code variant="outline" size="sm">Ctrl+K</Code>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Inside a heading</td>
+							<td>
+								<code>{`<Heading>How <Code variant="soft">useState</Code> works</Heading>`}</code>
+							</td>
+						</tr>
+						<tr>
+							<td class="name">With language hint (future highlighting)</td>
+							<td><code>{`<Code language="ts">readonly id: string</Code>`}</code></td>
+						</tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Reference comparison</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
+					<tbody>
+						<tr><td class="name">radix-themes</td><td><code>&lt;Code&gt;</code></td><td>Radix has size + variant (solid/soft/outline/surface); UIX consolidates to 3.</td></tr>
+						<tr><td class="name">chakra-ui</td><td><code>&lt;Code&gt;</code></td><td>Chakra uses <code>colorScheme</code>; UIX restricts to content-role.</td></tr>
+						<tr><td class="name">mantine</td><td><code>&lt;Code&gt;</code></td><td>Mantine has <code>block</code> boolean; UIX splits into Code + CodeBlock.</td></tr>
+						<tr><td class="name">MDN <code>&lt;code&gt;</code></td><td>HTML primitive</td><td>UIX wraps the native element with the foundation tokens.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'morfo'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Morfo contract</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Field</th><th>Value</th></tr></thead>
+					<tbody>
+						<tr><td class="name">name</td><td>{codeMorfo.name}</td></tr>
+						<tr><td class="name">kebab</td><td><code>{codeMorfo.kebab}</code></td></tr>
+						<tr><td class="name">scope</td><td>{codeMorfo.scope.join(', ')}</td></tr>
+						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
+						<tr><td class="name">events</td><td>0</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Parts</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead
+						><tr
+							><th>kebab</th><th>marker</th><th>element</th><th>archetype</th><th>optional</th
+							></tr
+						></thead
+					>
+					<tbody>
+						{#each partsList as part}
+							<tr>
+								<td class="name">{part.kebab}</td>
+								<td><code data-uix-part-marker>[{part.marker}]</code></td>
+								<td class="type">&lt;{part.defaultElement}&gt;</td>
+								<td class="type">{part.archetype}</td>
+								<td class="default">{part.optional ? 'yes' : 'no'}</td>
+							</tr>
+						{/each}
+					</tbody>
+				</table>
+			</div>
+
+			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
+				The Provider stamps <code>data-code</code> on the rendered tag (default
+				<code>{`<code>`}</code>), plus <code>data-variant</code> and (when set) <code>data-language</code>.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'sema'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>
+				<span data-uix-layer-badge="sema">sema</span> · events
+			</h2>
+			<p data-uix-section-desc>
+				Code declares no semantic events. The primitive is passive — there is no commit, no
+				emerge. If the consumer needs click-to-copy on inline code, they typically use the
+				multi-line CodeBlock primitive instead.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'recipe'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Eidos recipe</h2>
+			<p data-uix-section-desc>
+				Recipe lives in <code>src/uix/eidos/components/code/code.css</code>. Base typography
+				comes from <code>--style-code-*</code>; variants apply chrome through the
+				<code>data-variant</code> selector.
+			</p>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
+					<tbody>
+						<tr><td class="name"><code>[data-code]</code></td><td><span data-uix-tag data-kind="morfo">morfo</span></td><td>Provider marker. Base mono typography.</td></tr>
+						<tr><td class="name"><code>{`[data-code][data-variant='soft']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Subtle background pill.</td></tr>
+						<tr><td class="name"><code>{`[data-code][data-variant='outline']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Outlined pill.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'a11y'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Accessibility</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
+					<tbody>
+						<tr><td class="name">Role</td><td>Native HTML <code>{`<code>`}</code> semantics — AT announce as "code".</td></tr>
+						<tr><td class="name">Inside prose</td><td>Composes inline. AT read the surrounding text as a single utterance with the code embedded.</td></tr>
+						<tr><td class="name">Color contrast</td><td>Soft / outline variants use neutral palette tokens that meet WCAG AA on the foundation surfaces.</td></tr>
+						<tr><td class="name">Language hint</td><td><code>data-language</code> is not announced by AT; it's a styling / tooling hint.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+</div>
diff --git a/web/routes/uix/components/display/+page.svelte b/web/routes/uix/components/display/+page.svelte
new file mode 100644
index 000000000..bae75bcda
--- /dev/null
+++ b/web/routes/uix/components/display/+page.svelte
@@ -0,0 +1,546 @@
+<script lang="ts">
+	import {
+		Display,
+		type DisplaySize,
+		type DisplayFamily,
+		type DisplayWeight,
+		type DisplayColor,
+		type DisplayAlign,
+		type DisplayTracking
+	} from '$uix/eidos/components/display';
+	import { compileMorfo } from '$uix/morfo';
+	import { displayMorfo } from '@/uix/morfo/components/display';
+
+	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type TraceEntry = { event: string; family: string; intent?: string; at: number };
+	let tab = $state<Tab>('live');
+	let trace = $state<TraceEntry[]>([]);
+	let stageRef = $state<HTMLElement | null>(null);
+
+	let size = $state<DisplaySize | ''>('');
+	let family = $state<DisplayFamily | ''>('');
+	let weight = $state<DisplayWeight | ''>('');
+	let color = $state<DisplayColor | ''>('');
+	let align = $state<DisplayAlign | ''>('');
+	let tracking = $state<DisplayTracking | ''>('');
+	let italic = $state(false);
+	let underline = $state(false);
+	let truncate = $state(false);
+	let clamp = $state<number>(0);
+	let content = $state('Welcome to UIX.');
+	let asTag = $state<string>('h1');
+
+	const sizes: DisplaySize[] = ['xxs', 'xs', 'sm', 'md', 'lg', 'xl', 'xxl', 'xxxl'];
+	const families: DisplayFamily[] = ['primary', 'secondary', 'mono', 'display'];
+	const weights: DisplayWeight[] = ['regular', 'medium', 'semibold', 'bold'];
+	const colors: DisplayColor[] = ['primary', 'secondary', 'muted', 'disabled', 'on-solid'];
+	const alignOptions = ['', 'start', 'center', 'end', 'justify'] as const;
+	const trackingOptions = ['', 'tight', 'normal', 'wide'] as const;
+	const tagOptions = ['h1', 'h2', 'div', 'p', 'span'] as const;
+
+	const compiled = compileMorfo(displayMorfo);
+	const partsList = $derived([...compiled.parts.byKebab.values()]);
+	const events = $derived([...compiled.actions.byName.values()]);
+
+	$effect(() => {
+		const el = stageRef;
+		if (!el) return;
+		const obs = new MutationObserver((mutations) => {
+			for (const m of mutations) {
+				if (m.attributeName !== 'data-event') continue;
+				const target = m.target as Element;
+				const ev = target.getAttribute('data-event');
+				if (!ev) continue;
+				trace = [
+					{
+						event: ev,
+						family: target.getAttribute('data-event-family') ?? '—',
+						intent: target.getAttribute('data-event-intent') ?? undefined,
+						at: Date.now()
+					},
+					...trace
+				].slice(0, 6);
+			}
+		});
+		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
+		return () => obs.disconnect();
+	});
+
+	const somaSnippet = $derived(
+		[
+			'<!-- Display is eidos-native — no soma layer. -->',
+			'<!-- Equivalent semantic markup: -->',
+			'',
+			`<${asTag}`,
+			'  data-display',
+			tracking && `  data-tracking="${tracking}"`,
+			'  style="font-family: var(--style-hero-font-family); …"',
+			'>',
+			`  ${content}`,
+			`</${asTag}>`
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+
+	const eidosSnippet = $derived(
+		[
+			"<script lang='ts'>",
+			"  import { Display } from '$uix/eidos/components/display';",
+			'</' + 'script>',
+			'',
+			'<Display',
+			asTag !== 'h1' && `  as="${asTag}"`,
+			size && `  size="${size}"`,
+			family && `  family="${family}"`,
+			weight && `  weight="${weight}"`,
+			color && `  color="${color}"`,
+			align && `  align="${align}"`,
+			tracking && `  tracking="${tracking}"`,
+			italic && '  italic',
+			underline && '  underline',
+			truncate && '  truncate',
+			clamp > 0 && `  clamp={${clamp}}`,
+			'>',
+			'  ' + content,
+			'</Display>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+</script>
+
+<div data-uix-canvas-inner>
+	<header>
+		<div data-uix-eyebrow>Typography · Display</div>
+		<h1 data-uix-page-title>Display</h1>
+		<p data-uix-page-lede>
+			Hero / oversize typography primitive. Always uses the foundation's
+			<code>--style-hero-*</code>
+			tokens, which scale up at the <code>md</code> breakpoint. Default tag is
+			<code>{`<h1>`}</code>
+			(use <code>as</code> when the hero look is needed outside heading semantics). The
+			<code>tracking</code>
+			prop is the deliberate letter-spacing knob — at hero sizes the value is a design decision.
+			Single part. Eidos-native: no soma backing, no semantic events.
+		</p>
+		<div data-uix-page-meta>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>events</span>0
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>responsive</span>md
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>tracking</span>3
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>scope</span>eidos
+			</span>
+		</div>
+	</header>
+
+	<div data-uix-stage>
+		<div data-uix-stage-area bind:this={stageRef}>
+			<div
+				style="max-inline-size: 42rem; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md);"
+			>
+				<Display
+					as={asTag}
+					size={size || undefined}
+					family={family || undefined}
+					weight={weight || undefined}
+					color={color || undefined}
+					align={align || undefined}
+					tracking={tracking || undefined}
+					{italic}
+					{underline}
+					{truncate}
+					clamp={clamp > 0 ? clamp : undefined}
+				>
+					{content}
+				</Display>
+			</div>
+		</div>
+		<div data-uix-stage-trace>
+			<span data-uix-stage-trace-key>trace</span>
+			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
+			<span style="color: var(--uix-text-faint)">·</span>
+			<span data-uix-stage-trace-key>style</span>
+			<span>hero</span>
+			<span style="margin-inline-start: auto;">
+				<span data-uix-stage-trace-key>tag</span> &lt;{asTag}&gt; ·
+				<span data-uix-stage-trace-key>tracking</span> {tracking || 'default'}
+			</span>
+		</div>
+	</div>
+
+	<div data-uix-tabs role="tablist">
+		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
+		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
+			API <span data-uix-tab-count>11</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
+			<span data-uix-layer-badge="morfo">morfo</span>
+			<span data-uix-tab-count>{partsList.length}p · 0e</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
+			<span data-uix-layer-badge="sema">sema</span>
+			<span data-uix-tab-count>{events.length}</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}
+			>Recipe</button
+		>
+		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
+	</div>
+
+	{#if tab === 'live'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Controls</h2>
+			<p data-uix-section-desc>
+				Display is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. Always
+				consumes <code>--style-hero-*</code>; per-axis overrides write inline
+				<code>--_display-*</code>
+				CSS variables.
+			</p>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> props · hero treatment
+			</div>
+			<div data-uix-controls>
+				<label data-uix-control>
+					<span data-uix-control-label>as <span data-uix-control-hint>rendered tag</span></span>
+					<span data-uix-chips role="radiogroup">
+						{#each tagOptions as opt}
+							<button data-uix-chip data-active={asTag === opt} onclick={() => (asTag = opt)}>
+								&lt;{opt}&gt;
+							</button>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>size override</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={size === ''} onclick={() => (size = '')}
+							>inherit</button
+						>
+						{#each sizes as opt}
+							<button data-uix-chip data-active={size === opt} onclick={() => (size = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>family override</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={family === ''} onclick={() => (family = '')}
+							>inherit</button
+						>
+						{#each families as opt}
+							<button data-uix-chip data-active={family === opt} onclick={() => (family = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>weight override</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={weight === ''} onclick={() => (weight = '')}
+							>inherit</button
+						>
+						{#each weights as opt}
+							<button data-uix-chip data-active={weight === opt} onclick={() => (weight = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>color override</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={color === ''} onclick={() => (color = '')}
+							>inherit</button
+						>
+						{#each colors as opt}
+							<button data-uix-chip data-active={color === opt} onclick={() => (color = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>align</span>
+					<span data-uix-chips role="radiogroup">
+						{#each alignOptions as opt}
+							<button data-uix-chip data-active={align === opt} onclick={() => (align = opt)}
+								>{opt || 'inherit'}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>tracking <span data-uix-control-hint>letter-spacing</span></span
+					>
+					<span data-uix-chips role="radiogroup">
+						{#each trackingOptions as opt}
+							<button
+								data-uix-chip
+								data-active={tracking === opt}
+								onclick={() => (tracking = opt)}>{opt || 'default'}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>italic</span>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={italic} />
+						<span data-uix-switch-label>{italic ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>underline</span>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={underline} />
+						<span data-uix-switch-label>{underline ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>truncate</span>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={truncate} />
+						<span data-uix-switch-label>{truncate ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>clamp <span data-uix-control-hint>multi-line cap (0 = off)</span></span
+					>
+					<input
+						type="number"
+						min="0"
+						max="10"
+						step="1"
+						bind:value={clamp}
+						style="inline-size: 6rem;"
+					/>
+				</label>
+				<label data-uix-control style="grid-column: span 2;">
+					<span data-uix-control-label>content</span>
+					<input type="text" bind:value={content} style="inline-size: 100%; font: inherit;" />
+				</label>
+			</div>
+
+			<div data-uix-code>
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="soma">soma</span>
+					<span>n/a · display is eidos-native — equivalent markup shown</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{somaSnippet}</code></pre>
+			</div>
+
+			<div data-uix-code style="margin-top: var(--uix-space-3);">
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="eidos">eidos</span>
+					<span>visual · hero style + per-axis overrides</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{eidosSnippet}</code></pre>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'api'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>API reference</h2>
+			<p data-uix-section-desc>
+				Display always uses the foundation's <code>--style-hero-*</code> tokens. Per-axis props
+				override individual fields without breaking the hero cascade. <code>tracking</code> maps
+				to fixed em values because foundation letter-spacing tokens are mostly 0 at hero scale.
+			</p>
+
+			<div data-uix-subsection-head>Per-axis overrides</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr
+							><td class="name">size</td><td class="type"
+								>'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl' | 'xxl' | 'xxxl'</td
+							><td>Override the hero size step.</td></tr
+						>
+						<tr
+							><td class="name">family</td><td class="type"
+								>'primary' | 'secondary' | 'mono' | 'display'</td
+							><td>Override the hero family.</td></tr
+						>
+						<tr
+							><td class="name">weight</td><td class="type"
+								>'regular' | 'medium' | 'semibold' | 'bold'</td
+							><td>Override the hero weight.</td></tr
+						>
+						<tr
+							><td class="name">color</td><td class="type"
+								>'primary' | 'secondary' | 'muted' | 'disabled' | 'on-solid'</td
+							><td>Content-role color slot.</td></tr
+						>
+						<tr
+							><td class="name">align</td><td class="type"
+								>'start' | 'center' | 'end' | 'justify'</td
+							><td>Maps to <code>text-align</code>.</td></tr
+						>
+						<tr
+							><td class="name">tracking</td><td class="type"
+								>'tight' | 'normal' | 'wide'</td
+							><td>Letter-spacing: -0.02em / 0 / 0.02em.</td></tr
+						>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Shorthand booleans + truncation</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">italic</td><td class="type">boolean</td><td><code>font-style: italic</code>.</td></tr>
+						<tr><td class="name">underline</td><td class="type">boolean</td><td><code>text-decoration: underline</code>.</td></tr>
+						<tr><td class="name">truncate</td><td class="type">boolean</td><td>Single-line ellipsis.</td></tr>
+						<tr><td class="name">clamp</td><td class="type">number</td><td>Multi-line cap via <code>-webkit-line-clamp</code>.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Element + escape hatch</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">as</td><td class="type">string</td><td>HTML tag. Default <code>'h1'</code>.</td></tr>
+						<tr><td class="name">tagStyle</td><td class="type">string</td><td>Extra inline CSS.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Reference comparison</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
+					<tbody>
+						<tr><td class="name">radix-themes</td><td><code>&lt;Heading size="9"&gt;</code></td><td>Radix uses a large heading size; UIX has a dedicated Display surface.</td></tr>
+						<tr><td class="name">chakra-ui</td><td><code>&lt;Heading as="h1"&gt;</code></td><td>Chakra reuses Heading; UIX splits.</td></tr>
+						<tr><td class="name">mantine</td><td><code>&lt;Title order={`{1}`}&gt;</code></td><td>Mantine's Title is the only heading primitive; UIX has Heading + Display.</td></tr>
+						<tr><td class="name">mui Typography</td><td><code>variant="h1"</code></td><td>MUI's h1 ≈ UIX Display when consumer overrides <code>fontSize</code>.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'morfo'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Morfo contract</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Field</th><th>Value</th></tr></thead>
+					<tbody>
+						<tr><td class="name">name</td><td>{displayMorfo.name}</td></tr>
+						<tr><td class="name">kebab</td><td><code>{displayMorfo.kebab}</code></td></tr>
+						<tr><td class="name">scope</td><td>{displayMorfo.scope.join(', ')}</td></tr>
+						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
+						<tr><td class="name">events</td><td>0</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Parts</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead
+						><tr
+							><th>kebab</th><th>marker</th><th>element</th><th>archetype</th><th>optional</th
+							></tr
+						></thead
+					>
+					<tbody>
+						{#each partsList as part}
+							<tr>
+								<td class="name">{part.kebab}</td>
+								<td><code data-uix-part-marker>[{part.marker}]</code></td>
+								<td class="type">&lt;{part.defaultElement}&gt;</td>
+								<td class="type">{part.archetype}</td>
+								<td class="default">{part.optional ? 'yes' : 'no'}</td>
+							</tr>
+						{/each}
+					</tbody>
+				</table>
+			</div>
+
+			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
+				The Provider stamps <code>data-display</code> on the rendered tag (default
+				<code>{`<h1>`}</code>). The hero cascade is always-on; per-axis overrides come from
+				<code>--_display-*</code>
+				inline. <code>data-tracking</code> reflects the active tracking key for downstream
+				styling.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'sema'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>
+				<span data-uix-layer-badge="sema">sema</span> · events
+			</h2>
+			<p data-uix-section-desc>
+				Display declares no semantic events. As a passive primitive, it simply renders hero
+				typography. Components that animate hero titles (landing-page entrance, dialog hero)
+				compose Display inside an interactive surface that owns the relevant sema verb.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'recipe'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Eidos recipe</h2>
+			<p data-uix-section-desc>
+				Recipe lives in <code>src/uix/eidos/components/display/display.css</code>. The selector
+				<code>[data-display]</code>
+				applies the hero cascade. Per-axis overrides come from inline <code>--_display-*</code>
+				CSS variables; tracking maps to fixed em values via the same channel.
+			</p>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
+					<tbody>
+						<tr><td class="name"><code>[data-display]</code></td><td><span data-uix-tag data-kind="morfo">morfo</span></td><td>Provider marker. Default hero-style applied.</td></tr>
+						<tr><td class="name"><code>{`[data-display][data-italic|data-underline|data-truncate|data-clamp]`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Visual modifier flags.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'a11y'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Accessibility</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
+					<tbody>
+						<tr><td class="name">Role</td><td>Default tag <code>{`<h1>`}</code> — page-level heading. Use <code>as</code> when display typography is needed outside heading semantics (e.g. marketing pull-quote → <code>as="p"</code>).</td></tr>
+						<tr><td class="name">Single h1 per page</td><td>Convention: only one <code>{`<h1>`}</code> per document. Display defaults to that; switch to <code>as</code> if a second hero appears.</td></tr>
+						<tr><td class="name">Truncation + AT</td><td>CSS-only — full text remains in DOM. AT read the full hero.</td></tr>
+						<tr><td class="name">Color contrast</td><td>Content-role colors meet WCAG AA. Free colors via <code>tagStyle</code> bypass that guarantee.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+</div>
diff --git a/web/routes/uix/components/heading/+page.svelte b/web/routes/uix/components/heading/+page.svelte
new file mode 100644
index 000000000..989f2ea76
--- /dev/null
+++ b/web/routes/uix/components/heading/+page.svelte
@@ -0,0 +1,594 @@
+<script lang="ts">
+	import {
+		Heading,
+		type HeadingLevel,
+		type HeadingStyle,
+		type HeadingSize,
+		type HeadingFamily,
+		type HeadingWeight,
+		type HeadingColor,
+		type HeadingAlign
+	} from '$uix/eidos/components/heading';
+	import { compileMorfo } from '$uix/morfo';
+	import { headingMorfo } from '@/uix/morfo/components/heading';
+
+	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type TraceEntry = { event: string; family: string; intent?: string; at: number };
+	let tab = $state<Tab>('live');
+	let trace = $state<TraceEntry[]>([]);
+	let stageRef = $state<HTMLElement | null>(null);
+
+	// ── Live state ────────────────────────────────────────────────────────
+	let level = $state<HeadingLevel>(2);
+	let headingStyle = $state<HeadingStyle | ''>('');
+	let size = $state<HeadingSize | ''>('');
+	let family = $state<HeadingFamily | ''>('');
+	let weight = $state<HeadingWeight | ''>('');
+	let color = $state<HeadingColor | ''>('');
+	let align = $state<HeadingAlign | ''>('');
+	let italic = $state(false);
+	let underline = $state(false);
+	let truncate = $state(false);
+	let clamp = $state<number>(0);
+	let content = $state('Designed for the eidos visual layer.');
+
+	const levelOptions: HeadingLevel[] = [1, 2, 3, 4, 5, 6];
+	const styleOptions = ['', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'] as const;
+	const sizes: HeadingSize[] = ['xxs', 'xs', 'sm', 'md', 'lg', 'xl', 'xxl', 'xxxl'];
+	const families: HeadingFamily[] = ['primary', 'secondary', 'mono', 'display'];
+	const weights: HeadingWeight[] = ['regular', 'medium', 'semibold', 'bold'];
+	const colors: HeadingColor[] = ['primary', 'secondary', 'muted', 'disabled', 'on-solid'];
+	const alignOptions = ['', 'start', 'center', 'end', 'justify'] as const;
+
+	// ── Compiled morfo ────────────────────────────────────────────────────
+	const compiled = compileMorfo(headingMorfo);
+	const partsList = $derived([...compiled.parts.byKebab.values()]);
+	const events = $derived([...compiled.actions.byName.values()]);
+
+	$effect(() => {
+		const el = stageRef;
+		if (!el) return;
+		const obs = new MutationObserver((mutations) => {
+			for (const m of mutations) {
+				if (m.attributeName !== 'data-event') continue;
+				const target = m.target as Element;
+				const ev = target.getAttribute('data-event');
+				if (!ev) continue;
+				trace = [
+					{
+						event: ev,
+						family: target.getAttribute('data-event-family') ?? '—',
+						intent: target.getAttribute('data-event-intent') ?? undefined,
+						at: Date.now()
+					},
+					...trace
+				].slice(0, 6);
+			}
+		});
+		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
+		return () => obs.disconnect();
+	});
+
+	// ── Code snippets ─────────────────────────────────────────────────────
+	const somaSnippet = $derived(
+		[
+			'<!-- Heading is eidos-native — no soma layer. -->',
+			'<!-- Equivalent semantic markup: -->',
+			'',
+			`<h${level}`,
+			'  data-heading',
+			`  data-style="${headingStyle || `h${level}`}"`,
+			headingStyle && headingStyle !== `h${level}` && '  <!-- semantic and visual decoupled -->',
+			'>',
+			`  ${content}`,
+			`</h${level}>`
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+
+	const eidosSnippet = $derived(
+		[
+			"<script lang='ts'>",
+			"  import { Heading } from '$uix/eidos/components/heading';",
+			'</' + 'script>',
+			'',
+			'<Heading',
+			level !== 2 && `  level={${level}}`,
+			headingStyle && `  style="${headingStyle}"`,
+			size && `  size="${size}"`,
+			family && `  family="${family}"`,
+			weight && `  weight="${weight}"`,
+			color && `  color="${color}"`,
+			align && `  align="${align}"`,
+			italic && '  italic',
+			underline && '  underline',
+			truncate && '  truncate',
+			clamp > 0 && `  clamp={${clamp}}`,
+			'>',
+			'  ' + content,
+			'</Heading>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+</script>
+
+<div data-uix-canvas-inner>
+	<header>
+		<div data-uix-eyebrow>Typography · Heading</div>
+		<h1 data-uix-page-title>Heading</h1>
+		<p data-uix-page-lede>
+			Semantic heading typography primitive. <code>level</code> chooses the HTML tag
+			(<code>h1</code>..<code>h6</code>) and <code>style</code> chooses the visual treatment — by
+			default they mirror each other but can be decoupled
+			(<code>{`<Heading level={3} style="h1">`}</code>) for visual-h1-with-semantic-h3 cases.
+			Single part. Eidos-native: no soma backing, no semantic events.
+		</p>
+		<div data-uix-page-meta>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>events</span>0
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>levels</span>6
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>styles</span>6
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>scope</span>eidos
+			</span>
+		</div>
+	</header>
+
+	<div data-uix-stage>
+		<div data-uix-stage-area bind:this={stageRef}>
+			<div
+				style="max-inline-size: 38rem; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md);"
+			>
+				<Heading
+					{level}
+					style={headingStyle || undefined}
+					size={size || undefined}
+					family={family || undefined}
+					weight={weight || undefined}
+					color={color || undefined}
+					align={align || undefined}
+					{italic}
+					{underline}
+					{truncate}
+					clamp={clamp > 0 ? clamp : undefined}
+				>
+					{content}
+				</Heading>
+			</div>
+		</div>
+		<div data-uix-stage-trace>
+			<span data-uix-stage-trace-key>trace</span>
+			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
+			<span style="color: var(--uix-text-faint)">·</span>
+			<span data-uix-stage-trace-key>level</span>
+			<span>h{level}</span>
+			<span style="margin-inline-start: auto;">
+				<span data-uix-stage-trace-key>style</span> {headingStyle || `h${level}`} ·
+				<span data-uix-stage-trace-key>size</span> {size || 'inherit'}
+			</span>
+		</div>
+	</div>
+
+	<div data-uix-tabs role="tablist">
+		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
+		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
+			API <span data-uix-tab-count>11</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
+			<span data-uix-layer-badge="morfo">morfo</span>
+			<span data-uix-tab-count>{partsList.length}p · 0e</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
+			<span data-uix-layer-badge="sema">sema</span>
+			<span data-uix-tab-count>{events.length}</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}
+			>Recipe</button
+		>
+		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
+	</div>
+
+	{#if tab === 'live'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Controls</h2>
+			<p data-uix-section-desc>
+				Heading is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. The
+				<code>level</code> prop drives semantics; <code>style</code> drives visual weight (defaults
+				to mirror level). Per-axis overrides write inline
+				<code>--_heading-*</code> CSS variables.
+			</p>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> props · semantic + visual
+			</div>
+			<div data-uix-controls>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>level <span data-uix-control-hint>HTML tag</span></span
+					>
+					<span data-uix-chips role="radiogroup">
+						{#each levelOptions as opt}
+							<button
+								data-uix-chip
+								data-active={level === opt}
+								onclick={() => (level = opt)}>h{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>style <span data-uix-control-hint>visual scale, default mirrors level</span></span
+					>
+					<span data-uix-chips role="radiogroup">
+						{#each styleOptions as opt}
+							<button
+								data-uix-chip
+								data-active={headingStyle === opt}
+								onclick={() => (headingStyle = opt)}>{opt || 'auto'}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>size override</span>
+					<span data-uix-chips role="radiogroup">
+						<button
+							data-uix-chip
+							data-active={size === ''}
+							onclick={() => (size = '')}>inherit</button
+						>
+						{#each sizes as opt}
+							<button
+								data-uix-chip
+								data-active={size === opt}
+								onclick={() => (size = opt)}>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>family override</span>
+					<span data-uix-chips role="radiogroup">
+						<button
+							data-uix-chip
+							data-active={family === ''}
+							onclick={() => (family = '')}>inherit</button
+						>
+						{#each families as opt}
+							<button
+								data-uix-chip
+								data-active={family === opt}
+								onclick={() => (family = opt)}>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>weight override</span>
+					<span data-uix-chips role="radiogroup">
+						<button
+							data-uix-chip
+							data-active={weight === ''}
+							onclick={() => (weight = '')}>inherit</button
+						>
+						{#each weights as opt}
+							<button
+								data-uix-chip
+								data-active={weight === opt}
+								onclick={() => (weight = opt)}>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>color override <span data-uix-control-hint>content-role slot</span></span
+					>
+					<span data-uix-chips role="radiogroup">
+						<button
+							data-uix-chip
+							data-active={color === ''}
+							onclick={() => (color = '')}>inherit</button
+						>
+						{#each colors as opt}
+							<button
+								data-uix-chip
+								data-active={color === opt}
+								onclick={() => (color = opt)}>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>align</span>
+					<span data-uix-chips role="radiogroup">
+						{#each alignOptions as opt}
+							<button
+								data-uix-chip
+								data-active={align === opt}
+								onclick={() => (align = opt)}>{opt || 'inherit'}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>italic</span>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={italic} />
+						<span data-uix-switch-label>{italic ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>underline</span>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={underline} />
+						<span data-uix-switch-label>{underline ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>truncate <span data-uix-control-hint>single-line ellipsis</span></span
+					>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={truncate} />
+						<span data-uix-switch-label>{truncate ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>clamp <span data-uix-control-hint>multi-line cap (0 = off)</span></span
+					>
+					<input
+						type="number"
+						min="0"
+						max="10"
+						step="1"
+						bind:value={clamp}
+						style="inline-size: 6rem;"
+					/>
+				</label>
+				<label data-uix-control style="grid-column: span 2;">
+					<span data-uix-control-label>content</span>
+					<textarea bind:value={content} rows="2" style="inline-size: 100%; font: inherit;"
+					></textarea>
+				</label>
+			</div>
+
+			<div data-uix-code>
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="soma">soma</span>
+					<span>n/a · heading is eidos-native — equivalent markup shown</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{somaSnippet}</code></pre>
+			</div>
+
+			<div data-uix-code style="margin-top: var(--uix-space-3);">
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="eidos">eidos</span>
+					<span>visual · level + style + per-axis overrides</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{eidosSnippet}</code></pre>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'api'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>API reference</h2>
+			<p data-uix-section-desc>
+				<code>level</code> renders <code>{`<h{level}>`}</code>; <code>style</code> selects the
+				<code>{`--style-h{n}-*`}</code> token set (defaults to mirror level). Per-axis props
+				override individual fields without breaking the named-style cascade.
+			</p>
+
+			<div data-uix-subsection-head>Semantic + visual</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr
+							><td class="name">level</td><td class="type">1 | 2 | 3 | 4 | 5 | 6</td><td
+								class="default">2</td
+							><td>Renders <code>{`<h{level}>`}</code>. Drives semantic hierarchy.</td></tr
+						>
+						<tr
+							><td class="name">style</td><td class="type">'h1' | 'h2' | 'h3' | 'h4' | 'h5' | 'h6'</td
+							><td class="default">mirrors level</td><td
+								>Visual treatment. Decouples from level when set explicitly.</td
+							></tr
+						>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Per-axis overrides</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr
+							><td class="name">size</td><td class="type"
+								>'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl' | 'xxl' | 'xxxl'</td
+							><td>Resolves to <code>{`var(--font-size-{key})`}</code>.</td></tr
+						>
+						<tr
+							><td class="name">family</td><td class="type"
+								>'primary' | 'secondary' | 'mono' | 'display'</td
+							><td>Resolves to <code>{`var(--font-family-{key})`}</code>.</td></tr
+						>
+						<tr
+							><td class="name">weight</td><td class="type"
+								>'regular' | 'medium' | 'semibold' | 'bold'</td
+							><td>Resolves to <code>{`var(--font-weight-{key})`}</code>.</td></tr
+						>
+						<tr
+							><td class="name">color</td><td class="type"
+								>'primary' | 'secondary' | 'muted' | 'disabled' | 'on-solid'</td
+							><td>Resolves to <code>{`var(--color-content-{key})`}</code>.</td></tr
+						>
+						<tr
+							><td class="name">align</td><td class="type"
+								>'start' | 'center' | 'end' | 'justify'</td
+							><td>Maps to <code>text-align</code>.</td></tr
+						>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Shorthand booleans + truncation</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">italic</td><td class="type">boolean</td><td><code>font-style: italic</code>.</td></tr>
+						<tr><td class="name">underline</td><td class="type">boolean</td><td><code>text-decoration: underline</code>.</td></tr>
+						<tr><td class="name">truncate</td><td class="type">boolean</td><td>Single-line ellipsis. Requires container width.</td></tr>
+						<tr><td class="name">clamp</td><td class="type">number</td><td>Multi-line cap via <code>-webkit-line-clamp</code>.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Element + escape hatch</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">as</td><td class="type">string</td><td>Override the rendered tag. Defaults to <code>{`h{level}`}</code>.</td></tr>
+						<tr><td class="name">tagStyle</td><td class="type">string</td><td>Extra inline CSS. Appended after the recipe's vars.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Reference comparison</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
+					<tbody>
+						<tr><td class="name">radix-themes</td><td><code>&lt;Heading&gt;</code></td><td>Radix conflates semantic + visual into <code>as</code> + numeric size; UIX keeps them as separate props.</td></tr>
+						<tr><td class="name">chakra-ui</td><td><code>&lt;Heading&gt;</code></td><td>Chakra ties visual via <code>fontSize</code> only; UIX adds named foundation styles.</td></tr>
+						<tr><td class="name">mantine</td><td><code>&lt;Title order={`{1..6}`}&gt;</code></td><td>Mantine's <code>order</code> drives both; UIX splits via level/style.</td></tr>
+						<tr><td class="name">mui Typography</td><td><code>&lt;Typography variant="h1"&gt;</code></td><td>MUI <code>variant</code> ≈ UIX <code>style</code>; consumer composes <code>component="h3"</code> for the semantic split.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'morfo'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Morfo contract</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Field</th><th>Value</th></tr></thead>
+					<tbody>
+						<tr><td class="name">name</td><td>{headingMorfo.name}</td></tr>
+						<tr><td class="name">kebab</td><td><code>{headingMorfo.kebab}</code></td></tr>
+						<tr><td class="name">scope</td><td>{headingMorfo.scope.join(', ')}</td></tr>
+						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
+						<tr><td class="name">events</td><td>0</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Parts</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead
+						><tr
+							><th>kebab</th><th>marker</th><th>element</th><th>archetype</th><th>optional</th
+							></tr
+						></thead
+					>
+					<tbody>
+						{#each partsList as part}
+							<tr>
+								<td class="name">{part.kebab}</td>
+								<td><code data-uix-part-marker>[{part.marker}]</code></td>
+								<td class="type">&lt;{part.defaultElement}&gt;</td>
+								<td class="type">{part.archetype}</td>
+								<td class="default">{part.optional ? 'yes' : 'no'}</td>
+							</tr>
+						{/each}
+					</tbody>
+				</table>
+			</div>
+
+			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
+				The Provider stamps <code>data-heading</code> on the rendered
+				<code>{`<h{level}>`}</code>
+				tag (or the override from <code>as</code>) plus <code>data-level</code>,
+				<code>data-style</code> and the boolean modifier attrs (<code>data-italic</code>,
+				<code>data-underline</code>, <code>data-truncate</code>, <code>data-clamp</code>). The
+				recipe selects the named-style fallback chain via <code>data-style</code>; per-axis
+				overrides come through inline <code>--_heading-*</code> CSS variables.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'sema'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>
+				<span data-uix-layer-badge="sema">sema</span> · events
+			</h2>
+			<p data-uix-section-desc>
+				Heading declares no semantic events. As a passive typography primitive, the headline does
+				not commit, emerge, or react — it just renders its visual treatment. Components that
+				animate headings on appearance (dialog title, collapsible reveal, toast title) compose
+				Heading inside the interactive primitive that owns the relevant sema verb.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'recipe'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Eidos recipe</h2>
+			<p data-uix-section-desc>
+				Recipe lives in <code>src/uix/eidos/components/heading/heading.css</code>. The selector
+				<code>[data-heading]</code> applies the default h2 cascade; matching <code>data-style</code>
+				swaps to the corresponding <code>{`--style-h{n}-*`}</code> tokens. Per-axis overrides come
+				from <code>--_heading-*</code> custom properties written inline by the wrapper.
+			</p>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
+					<tbody>
+						<tr><td class="name"><code>[data-heading]</code></td><td><span data-uix-tag data-kind="morfo">morfo</span></td><td>Provider marker. Default h2-style applied.</td></tr>
+						<tr><td class="name"><code>{`[data-heading][data-style='h1'..'h6']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Swap to the named style's token set.</td></tr>
+						<tr><td class="name"><code>{`[data-heading][data-italic|data-underline|data-truncate|data-clamp]`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Visual modifier flags from boolean props.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'a11y'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Accessibility</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
+					<tbody>
+						<tr><td class="name">Role</td><td>Native HTML heading semantics from <code>{`<h{level}>`}</code>. AT announce the heading and its level automatically.</td></tr>
+						<tr><td class="name">Heading hierarchy</td><td>Consumer responsibility — pass <code>level</code> per outline depth. Don't skip levels (h2 then h4).</td></tr>
+						<tr><td class="name">Visual ≠ semantic</td><td>Decoupling via <code>{`level={3} style="h1"`}</code> is safe for AT — they read the level, not the visual style.</td></tr>
+						<tr><td class="name">Truncation + AT</td><td>CSS-only — full text remains in DOM. AT read the full heading.</td></tr>
+						<tr><td class="name">Color contrast</td><td>Content-role colors meet WCAG AA. Free colors via <code>tagStyle</code> bypass that guarantee.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+</div>
diff --git a/web/routes/uix/components/highlight/+page.svelte b/web/routes/uix/components/highlight/+page.svelte
new file mode 100644
index 000000000..365996417
--- /dev/null
+++ b/web/routes/uix/components/highlight/+page.svelte
@@ -0,0 +1,407 @@
+<script lang="ts">
+	import { Highlight, type HighlightColor } from '$uix/eidos/components/highlight';
+	import { compileMorfo } from '$uix/morfo';
+	import { highlightMorfo } from '@/uix/morfo/components/highlight';
+
+	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type TraceEntry = { event: string; family: string; intent?: string; at: number };
+	let tab = $state<Tab>('live');
+	let trace = $state<TraceEntry[]>([]);
+	let stageRef = $state<HTMLElement | null>(null);
+
+	let color = $state<HighlightColor>('fulfill');
+	let ignoreCase = $state(true);
+	let text = $state(
+		'The quick brown fox jumps over the lazy dog. Some FOXES are quicker than others.'
+	);
+	let queryRaw = $state('fox, quick');
+
+	const colors: HighlightColor[] = [
+		'primary',
+		'secondary',
+		'neutral',
+		'affirm',
+		'fulfill',
+		'risk',
+		'threat',
+		'loss'
+	];
+
+	const queryArray = $derived(
+		queryRaw
+			.split(',')
+			.map((s) => s.trim())
+			.filter(Boolean)
+	);
+
+	const compiled = compileMorfo(highlightMorfo);
+	const partsList = $derived([...compiled.parts.byKebab.values()]);
+	const events = $derived([...compiled.actions.byName.values()]);
+
+	$effect(() => {
+		const el = stageRef;
+		if (!el) return;
+		const obs = new MutationObserver((mutations) => {
+			for (const m of mutations) {
+				if (m.attributeName !== 'data-event') continue;
+				const target = m.target as Element;
+				const ev = target.getAttribute('data-event');
+				if (!ev) continue;
+				trace = [
+					{
+						event: ev,
+						family: target.getAttribute('data-event-family') ?? '—',
+						intent: target.getAttribute('data-event-intent') ?? undefined,
+						at: Date.now()
+					},
+					...trace
+				].slice(0, 6);
+			}
+		});
+		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
+		return () => obs.disconnect();
+	});
+
+	const somaSnippet = $derived(
+		[
+			'<!-- Highlight is eidos-native — no soma layer. -->',
+			'<!-- Equivalent markup (per match): -->',
+			'',
+			'<span data-highlight',
+			`  data-color="${color}"`,
+			'>',
+			'  …text…',
+			`  <mark data-mark data-color="${color}">match</mark>`,
+			'  …more text…',
+			'</span>'
+		].join('\n')
+	);
+
+	const eidosSnippet = $derived(
+		[
+			"<script lang='ts'>",
+			"  import { Highlight } from '$uix/eidos/components/highlight';",
+			'</' + 'script>',
+			'',
+			'<Highlight',
+			'  text={' +
+				JSON.stringify(text.length > 60 ? text.slice(0, 60) + '…' : text) +
+				'}',
+			queryArray.length === 1
+				? `  query=${JSON.stringify(queryArray[0])}`
+				: `  query={${JSON.stringify(queryArray)}}`,
+			color !== 'fulfill' && `  color="${color}"`,
+			!ignoreCase && '  ignoreCase={false}',
+			'/>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+</script>
+
+<div data-uix-canvas-inner>
+	<header>
+		<div data-uix-eyebrow>Typography · Highlight</div>
+		<h1 data-uix-page-title>Highlight</h1>
+		<p data-uix-page-lede>
+			Substring highlighter primitive. Wraps a <code>{`<span>`}</code> shell around the input text
+			and replaces matches of <code>query</code> (string or array) with <code>{`<mark>`}</code>
+			elements that inherit the same recipe as the standalone Mark primitive. Composes inside any
+			inline-flow primitive. Single part. Eidos-native: no soma backing, no semantic events.
+		</p>
+		<div data-uix-page-meta>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>events</span>0
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>colors</span>8
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>multi-term</span>yes
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>scope</span>eidos
+			</span>
+		</div>
+	</header>
+
+	<div data-uix-stage>
+		<div data-uix-stage-area bind:this={stageRef}>
+			<p
+				style="max-inline-size: 38rem; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md); font: inherit;"
+			>
+				<Highlight {text} query={queryArray} {color} {ignoreCase} />
+			</p>
+		</div>
+		<div data-uix-stage-trace>
+			<span data-uix-stage-trace-key>trace</span>
+			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
+			<span style="color: var(--uix-text-faint)">·</span>
+			<span data-uix-stage-trace-key>color</span>
+			<span>{color}</span>
+			<span style="margin-inline-start: auto;">
+				<span data-uix-stage-trace-key>terms</span> {queryArray.length} ·
+				<span data-uix-stage-trace-key>ignoreCase</span> {ignoreCase ? 'on' : 'off'}
+			</span>
+		</div>
+	</div>
+
+	<div data-uix-tabs role="tablist">
+		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
+		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
+			API <span data-uix-tab-count>5</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
+			<span data-uix-layer-badge="morfo">morfo</span>
+			<span data-uix-tab-count>{partsList.length}p · 0e</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
+			<span data-uix-layer-badge="sema">sema</span>
+			<span data-uix-tab-count>{events.length}</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}
+			>Recipe</button
+		>
+		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
+	</div>
+
+	{#if tab === 'live'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Controls</h2>
+			<p data-uix-section-desc>
+				Highlight is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split.
+				Multiple terms via comma-separated input. Terms are regex-escaped automatically.
+			</p>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> props · substring match
+			</div>
+			<div data-uix-controls>
+				<label data-uix-control>
+					<span data-uix-control-label>color</span>
+					<span data-uix-chips role="radiogroup">
+						{#each colors as opt}
+							<button data-uix-chip data-active={color === opt} onclick={() => (color = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>ignoreCase</span>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={ignoreCase} />
+						<span data-uix-switch-label>{ignoreCase ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control style="grid-column: span 2;">
+					<span data-uix-control-label
+						>query <span data-uix-control-hint>comma-separated terms</span></span
+					>
+					<input type="text" bind:value={queryRaw} style="inline-size: 100%; font: inherit;" />
+				</label>
+				<label data-uix-control style="grid-column: span 2;">
+					<span data-uix-control-label>text</span>
+					<textarea bind:value={text} rows="3" style="inline-size: 100%; font: inherit;"></textarea>
+				</label>
+			</div>
+
+			<div data-uix-code>
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="soma">soma</span>
+					<span>n/a · highlight is eidos-native — equivalent markup shown</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{somaSnippet}</code></pre>
+			</div>
+
+			<div data-uix-code style="margin-top: var(--uix-space-3);">
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="eidos">eidos</span>
+					<span>visual · text + query + intent</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{eidosSnippet}</code></pre>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'api'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>API reference</h2>
+			<p data-uix-section-desc>
+				Highlight scans <code>text</code> for matches of <code>query</code> (string or array of
+				strings, regex-escaped) and wraps each match in <code>{`<mark data-mark>`}</code>.
+			</p>
+
+			<div data-uix-subsection-head>Props</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">text</td><td class="type">string</td><td class="default">—</td><td>Required. The full text to render.</td></tr>
+						<tr><td class="name">query</td><td class="type">string | string[]</td><td class="default">—</td><td>Substring(s) to highlight.</td></tr>
+						<tr><td class="name">ignoreCase</td><td class="type">boolean</td><td class="default">true</td><td>Case-insensitive match.</td></tr>
+						<tr><td class="name">color</td><td class="type">'primary' | 'secondary' | 'neutral' | 'affirm' | 'fulfill' | 'risk' | 'threat' | 'loss'</td><td class="default">'fulfill'</td><td>Intent palette for the highlight tint.</td></tr>
+						<tr><td class="name">as</td><td class="type">string</td><td class="default">'span'</td><td>Override outer shell tag.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Composability examples</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Use case</th><th>Snippet</th></tr></thead>
+					<tbody>
+						<tr>
+							<td class="name">Single-term search result</td>
+							<td>
+								<code>{`<Highlight text={row.title} query={search} />`}</code>
+							</td>
+						</tr>
+						<tr>
+							<td class="name">Multi-term filter</td>
+							<td>
+								<code>{`<Highlight text={message} query={['error', 'failed']} color="threat" />`}</code>
+							</td>
+						</tr>
+						<tr>
+							<td class="name">Case-sensitive code search</td>
+							<td>
+								<code>{`<Highlight text={src} query="TODO" ignoreCase={false} />`}</code>
+							</td>
+						</tr>
+						<tr>
+							<td class="name">Inside a Heading</td>
+							<td>
+								<code>{`<Heading><Highlight text={title} query={search} /></Heading>`}</code>
+							</td>
+						</tr>
+						<tr>
+							<td class="name">List of results</td>
+							<td>
+								<code
+									>{`{#each results as r}<li><Highlight text={r.label} query={search} /></li>{/each}`}</code
+								>
+							</td>
+						</tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Reference comparison</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
+					<tbody>
+						<tr><td class="name">radix-themes</td><td>—</td><td>Radix has no substring highlighter; consumer composes manually.</td></tr>
+						<tr><td class="name">chakra-ui</td><td><code>&lt;Highlight&gt;</code></td><td>Chakra uses colorScheme; UIX restricts to intent palette.</td></tr>
+						<tr><td class="name">mantine</td><td><code>&lt;Highlight&gt;</code></td><td>Mantine supports regex via <code>highlight={"{ regex: true }"}</code>; UIX reserves for v2.</td></tr>
+						<tr><td class="name">react-highlight-words</td><td>library</td><td>Bundles highlighting + regex + custom render; UIX is intentionally minimal.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'morfo'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Morfo contract</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Field</th><th>Value</th></tr></thead>
+					<tbody>
+						<tr><td class="name">name</td><td>{highlightMorfo.name}</td></tr>
+						<tr><td class="name">kebab</td><td><code>{highlightMorfo.kebab}</code></td></tr>
+						<tr><td class="name">scope</td><td>{highlightMorfo.scope.join(', ')}</td></tr>
+						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
+						<tr><td class="name">events</td><td>0</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Parts</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead
+						><tr
+							><th>kebab</th><th>marker</th><th>element</th><th>archetype</th><th>optional</th
+							></tr
+						></thead
+					>
+					<tbody>
+						{#each partsList as part}
+							<tr>
+								<td class="name">{part.kebab}</td>
+								<td><code data-uix-part-marker>[{part.marker}]</code></td>
+								<td class="type">&lt;{part.defaultElement}&gt;</td>
+								<td class="type">{part.archetype}</td>
+								<td class="default">{part.optional ? 'yes' : 'no'}</td>
+							</tr>
+						{/each}
+					</tbody>
+				</table>
+			</div>
+
+			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
+				The Provider stamps <code>data-highlight</code> on the outer shell. Inner matches reuse
+				the Mark recipe via the embedded <code>data-mark</code> attr, sharing
+				<code>data-color</code>.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'sema'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>
+				<span data-uix-layer-badge="sema">sema</span> · events
+			</h2>
+			<p data-uix-section-desc>
+				Highlight declares no semantic events. The primitive is a formatter: given
+				<code>text</code> + <code>query</code> it produces a tree of segments and decorates the
+				matches. No commit, no emerge. Animating the appearance of matched text belongs to a
+				containing list / popover.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'recipe'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Eidos recipe</h2>
+			<p data-uix-section-desc>
+				Recipe lives in <code>src/uix/eidos/components/highlight/highlight.css</code>. The outer
+				shell is structural (<code>font: inherit</code>); inner Mark elements pick up the
+				palette from the standalone Mark recipe.
+			</p>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
+					<tbody>
+						<tr><td class="name"><code>[data-highlight]</code></td><td><span data-uix-tag data-kind="morfo">morfo</span></td><td>Outer shell. Inherits ambient typography.</td></tr>
+						<tr><td class="name"><code>[data-highlight] [data-mark]</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Reuses the Mark recipe via shared <code>data-mark</code> attr.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'a11y'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Accessibility</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
+					<tbody>
+						<tr><td class="name">Role</td><td>The shell is a generic <code>{`<span>`}</code>; inner matches are <code>{`<mark>`}</code>.</td></tr>
+						<tr><td class="name">Full text in DOM</td><td>Highlight doesn't truncate or hide content. AT read the full text including the marked segments.</td></tr>
+						<tr><td class="name">Multi-term ordering</td><td>Matches are found left-to-right in <code>text</code> order. Reading order follows the source.</td></tr>
+						<tr><td class="name">Color contrast</td><td>Inherits the Mark recipe's contract — each intent's bg + text meets WCAG AA.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+</div>
diff --git a/web/routes/uix/components/kbd/+page.svelte b/web/routes/uix/components/kbd/+page.svelte
new file mode 100644
index 000000000..74c400d74
--- /dev/null
+++ b/web/routes/uix/components/kbd/+page.svelte
@@ -0,0 +1,418 @@
+<script lang="ts">
+	import { Kbd, type KbdVariant, type KbdSize } from '$uix/eidos/components/kbd';
+	import { compileMorfo } from '$uix/morfo';
+	import { kbdMorfo } from '@/uix/morfo/components/kbd';
+
+	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type TraceEntry = { event: string; family: string; intent?: string; at: number };
+	let tab = $state<Tab>('live');
+	let trace = $state<TraceEntry[]>([]);
+	let stageRef = $state<HTMLElement | null>(null);
+
+	let variant = $state<KbdVariant>('surface');
+	let size = $state<KbdSize | ''>('');
+	let content = $state<string>('Ctrl');
+
+	const variants: KbdVariant[] = ['surface', 'outline', 'ghost'];
+	const sizes: KbdSize[] = ['xxs', 'xs', 'sm', 'md', 'lg', 'xl'];
+
+	const compiled = compileMorfo(kbdMorfo);
+	const partsList = $derived([...compiled.parts.byKebab.values()]);
+	const events = $derived([...compiled.actions.byName.values()]);
+
+	$effect(() => {
+		const el = stageRef;
+		if (!el) return;
+		const obs = new MutationObserver((mutations) => {
+			for (const m of mutations) {
+				if (m.attributeName !== 'data-event') continue;
+				const target = m.target as Element;
+				const ev = target.getAttribute('data-event');
+				if (!ev) continue;
+				trace = [
+					{
+						event: ev,
+						family: target.getAttribute('data-event-family') ?? '—',
+						intent: target.getAttribute('data-event-intent') ?? undefined,
+						at: Date.now()
+					},
+					...trace
+				].slice(0, 6);
+			}
+		});
+		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
+		return () => obs.disconnect();
+	});
+
+	const somaSnippet = $derived(
+		[
+			'<!-- Kbd is eidos-native — no soma layer. -->',
+			'<!-- Equivalent markup: -->',
+			'',
+			'<kbd',
+			'  data-kbd',
+			`  data-variant="${variant}"`,
+			'>',
+			`  ${content}`,
+			'</kbd>'
+		].join('\n')
+	);
+
+	const eidosSnippet = $derived(
+		[
+			"<script lang='ts'>",
+			"  import { Kbd } from '$uix/eidos/components/kbd';",
+			'</' + 'script>',
+			'',
+			'<Kbd',
+			variant !== 'surface' && `  variant="${variant}"`,
+			size && `  size="${size}"`,
+			'>',
+			'  ' + content,
+			'</Kbd>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+</script>
+
+<div data-uix-canvas-inner>
+	<header>
+		<div data-uix-eyebrow>Typography · Kbd</div>
+		<h1 data-uix-page-title>Kbd</h1>
+		<p data-uix-page-lede>
+			Keyboard shortcut typography primitive. Renders <code>{`<kbd>`}</code> with a small chrome
+			(border + background + inner padding) so the key looks like a physical cap. Inline within
+			prose — for shortcut hints, key sequences. Single part. Eidos-native: no soma backing, no
+			semantic events.
+		</p>
+		<div data-uix-page-meta>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>events</span>0
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>variants</span>3
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>sizes</span>6
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>scope</span>eidos
+			</span>
+		</div>
+	</header>
+
+	<div data-uix-stage>
+		<div data-uix-stage-area bind:this={stageRef}>
+			<p
+				style="max-inline-size: 38rem; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md); font: inherit; display: flex; align-items: center; gap: 0.4em; flex-wrap: wrap;"
+			>
+				Press
+				<Kbd {variant} size={size || undefined}>{content}</Kbd>
+				<span>+</span>
+				<Kbd {variant} size={size || undefined}>K</Kbd>
+				<span>to open command palette. Or just</span>
+				<Kbd {variant} size={size || undefined}>Esc</Kbd>
+				<span>to dismiss.</span>
+			</p>
+		</div>
+		<div data-uix-stage-trace>
+			<span data-uix-stage-trace-key>trace</span>
+			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
+			<span style="color: var(--uix-text-faint)">·</span>
+			<span data-uix-stage-trace-key>variant</span>
+			<span>{variant}</span>
+			<span style="margin-inline-start: auto;">
+				<span data-uix-stage-trace-key>size</span> {size || 'inherit'}
+			</span>
+		</div>
+	</div>
+
+	<div data-uix-tabs role="tablist">
+		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
+		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
+			API <span data-uix-tab-count>5</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
+			<span data-uix-layer-badge="morfo">morfo</span>
+			<span data-uix-tab-count>{partsList.length}p · 0e</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
+			<span data-uix-layer-badge="sema">sema</span>
+			<span data-uix-tab-count>{events.length}</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}
+			>Recipe</button
+		>
+		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
+	</div>
+
+	{#if tab === 'live'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Controls</h2>
+			<p data-uix-section-desc>
+				Kbd is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. The
+				<code>variant</code>
+				picks chrome (surface = physical-key feel, outline = thin border, ghost = mono only).
+			</p>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> props · key cap
+			</div>
+			<div data-uix-controls>
+				<label data-uix-control>
+					<span data-uix-control-label>variant</span>
+					<span data-uix-chips role="radiogroup">
+						{#each variants as opt}
+							<button data-uix-chip data-active={variant === opt} onclick={() => (variant = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>size</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={size === ''} onclick={() => (size = '')}
+							>inherit</button
+						>
+						{#each sizes as opt}
+							<button data-uix-chip data-active={size === opt} onclick={() => (size = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>first key content</span>
+					<input type="text" bind:value={content} style="inline-size: 8rem;" />
+				</label>
+			</div>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> variant gallery
+			</div>
+			<div
+				data-uix-controls
+				style="grid-template-columns: 1fr; gap: var(--uix-space-2);"
+			>
+				<div
+					style="display: flex; gap: 0.5em; align-items: center; flex-wrap: wrap; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md);"
+				>
+					<span style="color: var(--color-content-muted); min-inline-size: 6em;">surface</span>
+					<Kbd variant="surface">Ctrl</Kbd>
+					<Kbd variant="surface">Shift</Kbd>
+					<Kbd variant="surface">Esc</Kbd>
+					<Kbd variant="surface" size="xs">F1</Kbd>
+					<Kbd variant="surface" size="lg">Enter</Kbd>
+				</div>
+				<div
+					style="display: flex; gap: 0.5em; align-items: center; flex-wrap: wrap; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md);"
+				>
+					<span style="color: var(--color-content-muted); min-inline-size: 6em;">outline</span>
+					<Kbd variant="outline">Ctrl</Kbd>
+					<Kbd variant="outline">Shift</Kbd>
+					<Kbd variant="outline">Esc</Kbd>
+					<Kbd variant="outline" size="xs">F1</Kbd>
+					<Kbd variant="outline" size="lg">Enter</Kbd>
+				</div>
+				<div
+					style="display: flex; gap: 0.5em; align-items: center; flex-wrap: wrap; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md);"
+				>
+					<span style="color: var(--color-content-muted); min-inline-size: 6em;">ghost</span>
+					<Kbd variant="ghost">Ctrl</Kbd>
+					<Kbd variant="ghost">Shift</Kbd>
+					<Kbd variant="ghost">Esc</Kbd>
+					<Kbd variant="ghost" size="xs">F1</Kbd>
+					<Kbd variant="ghost" size="lg">Enter</Kbd>
+				</div>
+			</div>
+
+			<div data-uix-code>
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="soma">soma</span>
+					<span>n/a · kbd is eidos-native — equivalent markup shown</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{somaSnippet}</code></pre>
+			</div>
+
+			<div data-uix-code style="margin-top: var(--uix-space-3);">
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="eidos">eidos</span>
+					<span>visual · variant + size</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{eidosSnippet}</code></pre>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'api'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>API reference</h2>
+			<p data-uix-section-desc>
+				Kbd composes inline within prose. Compose multiple Kbds with literal separators for
+				sequences: <code>{`<Kbd>Ctrl</Kbd> + <Kbd>K</Kbd>`}</code>.
+			</p>
+
+			<div data-uix-subsection-head>Props</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">variant</td><td class="type">'surface' | 'outline' | 'ghost'</td><td class="default">'surface'</td><td>Visual chrome.</td></tr>
+						<tr><td class="name">size</td><td class="type">'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl'</td><td class="default">inherit</td><td>Maps to <code>{`var(--font-size-{key})`}</code>.</td></tr>
+						<tr><td class="name">as</td><td class="type">string</td><td class="default">'kbd'</td><td>Override rendered tag.</td></tr>
+						<tr><td class="name">tagStyle</td><td class="type">string</td><td class="default">—</td><td>Extra inline CSS.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Composability examples</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Use case</th><th>Snippet</th></tr></thead>
+					<tbody>
+						<tr>
+							<td class="name">Single key</td>
+							<td><code>{`<Kbd>Esc</Kbd>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Two-key shortcut</td>
+							<td><code>{`<Kbd>Ctrl</Kbd> + <Kbd>K</Kbd>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Sequence</td>
+							<td><code>{`<Kbd>g</Kbd> then <Kbd>h</Kbd>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Inline ghost (Markdown look)</td>
+							<td><code>{`<Kbd variant="ghost">space</Kbd>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Inside a Heading</td>
+							<td>
+								<code>{`<Heading level={3}>Press <Kbd size="sm">Tab</Kbd> to switch</Heading>`}</code>
+							</td>
+						</tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Reference comparison</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
+					<tbody>
+						<tr><td class="name">radix-themes</td><td><code>&lt;Kbd&gt;</code></td><td>Radix offers size only; UIX adds variant.</td></tr>
+						<tr><td class="name">chakra-ui</td><td><code>&lt;Kbd&gt;</code></td><td>Chakra uses <code>colorScheme</code>; UIX has variant.</td></tr>
+						<tr><td class="name">mantine</td><td><code>&lt;Kbd&gt;</code></td><td>Mantine ships a single visual; UIX has 3 variants.</td></tr>
+						<tr><td class="name">MDN <code>&lt;kbd&gt;</code></td><td>HTML primitive</td><td>UIX wraps the native element with the foundation tokens.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'morfo'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Morfo contract</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Field</th><th>Value</th></tr></thead>
+					<tbody>
+						<tr><td class="name">name</td><td>{kbdMorfo.name}</td></tr>
+						<tr><td class="name">kebab</td><td><code>{kbdMorfo.kebab}</code></td></tr>
+						<tr><td class="name">scope</td><td>{kbdMorfo.scope.join(', ')}</td></tr>
+						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
+						<tr><td class="name">events</td><td>0</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Parts</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead
+						><tr
+							><th>kebab</th><th>marker</th><th>element</th><th>archetype</th><th>optional</th
+							></tr
+						></thead
+					>
+					<tbody>
+						{#each partsList as part}
+							<tr>
+								<td class="name">{part.kebab}</td>
+								<td><code data-uix-part-marker>[{part.marker}]</code></td>
+								<td class="type">&lt;{part.defaultElement}&gt;</td>
+								<td class="type">{part.archetype}</td>
+								<td class="default">{part.optional ? 'yes' : 'no'}</td>
+							</tr>
+						{/each}
+					</tbody>
+				</table>
+			</div>
+
+			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
+				The Provider stamps <code>data-kbd</code> on the rendered <code>{`<kbd>`}</code> tag plus
+				<code>data-variant</code>.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'sema'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>
+				<span data-uix-layer-badge="sema">sema</span> · events
+			</h2>
+			<p data-uix-section-desc>
+				Kbd declares no semantic events. The primitive is a label for a shortcut — the actual
+				shortcut handler lives on the consumer (a Toolbar button, a global key handler). If
+				binding the visual to a real shortcut, use a synced state with the handler that owns
+				the verb.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'recipe'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Eidos recipe</h2>
+			<p data-uix-section-desc>
+				Recipe lives in <code>src/uix/eidos/components/kbd/kbd.css</code>. Base mono typography
+				from <code>--style-code-font-family</code>; chrome via <code>data-variant</code>.
+			</p>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
+					<tbody>
+						<tr><td class="name"><code>[data-kbd]</code></td><td><span data-uix-tag data-kind="morfo">morfo</span></td><td>Provider marker. Base mono cap.</td></tr>
+						<tr><td class="name"><code>{`[data-kbd][data-variant='surface']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Filled cap with bottom-emphasized border.</td></tr>
+						<tr><td class="name"><code>{`[data-kbd][data-variant='outline']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Outlined cap, transparent fill.</td></tr>
+						<tr><td class="name"><code>{`[data-kbd][data-variant='ghost']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Mono font only, no chrome.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'a11y'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Accessibility</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
+					<tbody>
+						<tr><td class="name">Role</td><td>Native HTML <code>{`<kbd>`}</code> semantics. AT announce as "keyboard input".</td></tr>
+						<tr><td class="name">Multi-key sequences</td><td>Compose multiple Kbds with literal separators ("+", " then ", " ↓ "). AT read the sequence in order.</td></tr>
+						<tr><td class="name">Color contrast</td><td>Surface variant uses neutral palette tokens meeting WCAG AA on foundation surfaces.</td></tr>
+						<tr><td class="name">Selectable text</td><td><code>user-select: none</code> by default. Toggle via <code>tagStyle</code> if the consumer wants the key text selectable.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+</div>
diff --git a/web/routes/uix/components/link/+page.svelte b/web/routes/uix/components/link/+page.svelte
new file mode 100644
index 000000000..36b570f9f
--- /dev/null
+++ b/web/routes/uix/components/link/+page.svelte
@@ -0,0 +1,448 @@
+<script lang="ts">
+	import {
+		Link,
+		type LinkVariant,
+		type LinkUnderline,
+		type LinkSize,
+		type LinkColor
+	} from '$uix/eidos/components/link';
+	import { compileMorfo } from '$uix/morfo';
+	import { linkMorfo } from '@/uix/morfo/components/link';
+
+	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type TraceEntry = { event: string; family: string; intent?: string; at: number };
+	let tab = $state<Tab>('live');
+	let trace = $state<TraceEntry[]>([]);
+	let stageRef = $state<HTMLElement | null>(null);
+
+	let variant = $state<LinkVariant>('default');
+	let underline = $state<LinkUnderline>('hover');
+	let size = $state<LinkSize | ''>('');
+	let color = $state<LinkColor>('primary');
+	let external = $state(false);
+	let disabled = $state(false);
+	let href = $state('/uix/components/link');
+	let content = $state('documentation');
+
+	const variants: LinkVariant[] = ['default', 'subtle', 'plain'];
+	const underlines: LinkUnderline[] = ['none', 'hover', 'always'];
+	const sizes: LinkSize[] = ['xxs', 'xs', 'sm', 'md', 'lg', 'xl'];
+	const colors: LinkColor[] = [
+		'primary',
+		'secondary',
+		'neutral',
+		'affirm',
+		'fulfill',
+		'risk',
+		'threat',
+		'loss'
+	];
+
+	const compiled = compileMorfo(linkMorfo);
+	const partsList = $derived([...compiled.parts.byKebab.values()]);
+	const events = $derived([...compiled.actions.byName.values()]);
+
+	$effect(() => {
+		const el = stageRef;
+		if (!el) return;
+		const obs = new MutationObserver((mutations) => {
+			for (const m of mutations) {
+				if (m.attributeName !== 'data-event') continue;
+				const target = m.target as Element;
+				const ev = target.getAttribute('data-event');
+				if (!ev) continue;
+				trace = [
+					{
+						event: ev,
+						family: target.getAttribute('data-event-family') ?? '—',
+						intent: target.getAttribute('data-event-intent') ?? undefined,
+						at: Date.now()
+					},
+					...trace
+				].slice(0, 6);
+			}
+		});
+		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
+		return () => obs.disconnect();
+	});
+
+	const somaSnippet = $derived(
+		[
+			'<!-- Link is eidos-native — no soma layer. -->',
+			'<!-- Equivalent markup: -->',
+			'',
+			disabled ? '<span' : '<a',
+			!disabled && `  href="${href}"`,
+			'  data-link',
+			`  data-variant="${variant}"`,
+			`  data-underline="${underline}"`,
+			`  data-color="${color}"`,
+			external && !disabled && '  target="_blank"',
+			external && !disabled && '  rel="noopener noreferrer"',
+			disabled && '  aria-disabled="true"',
+			'>',
+			'  ' + content,
+			disabled ? '</span>' : '</a>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+
+	const eidosSnippet = $derived(
+		[
+			"<script lang='ts'>",
+			"  import { Link } from '$uix/eidos/components/link';",
+			'</' + 'script>',
+			'',
+			'<Link',
+			!disabled && `  href="${href}"`,
+			variant !== 'default' && `  variant="${variant}"`,
+			underline !== 'hover' && `  underline="${underline}"`,
+			size && `  size="${size}"`,
+			color !== 'primary' && `  color="${color}"`,
+			external && '  external',
+			disabled && '  disabled',
+			'>',
+			'  ' + content,
+			'</Link>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+</script>
+
+<div data-uix-canvas-inner>
+	<header>
+		<div data-uix-eyebrow>Typography · Link</div>
+		<h1 data-uix-page-title>Link</h1>
+		<p data-uix-page-lede>
+			Inline text link primitive. Renders <code>{`<a>`}</code> by default — or
+			<code>{`<span aria-disabled>`}</code>
+			when disabled — so the link composes mid-paragraph without breaking ambient typography.
+			Visual variants drive color + underline; <code>external</code> adds the standard
+			<code>target="_blank"</code>
+			+ <code>rel="noopener noreferrer"</code> + screen-reader affordance. Single part. Eidos-native:
+			no soma backing, no semantic events on the morfo (navigation belongs to the consumer).
+		</p>
+		<div data-uix-page-meta>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>events</span>0
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>variants</span>3
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>colors</span>8
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>scope</span>eidos
+			</span>
+		</div>
+	</header>
+
+	<div data-uix-stage>
+		<div data-uix-stage-area bind:this={stageRef}>
+			<p
+				style="max-inline-size: 38rem; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md); font: inherit;"
+			>
+				Read the
+				<Link
+					{href}
+					{variant}
+					{underline}
+					size={size || undefined}
+					{color}
+					{external}
+					{disabled}
+				>
+					{content}
+				</Link>
+				for more information.
+			</p>
+		</div>
+		<div data-uix-stage-trace>
+			<span data-uix-stage-trace-key>trace</span>
+			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
+			<span style="color: var(--uix-text-faint)">·</span>
+			<span data-uix-stage-trace-key>variant</span>
+			<span>{variant}</span>
+			<span style="margin-inline-start: auto;">
+				<span data-uix-stage-trace-key>color</span> {color} ·
+				<span data-uix-stage-trace-key>underline</span> {underline}
+			</span>
+		</div>
+	</div>
+
+	<div data-uix-tabs role="tablist">
+		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
+		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
+			API <span data-uix-tab-count>9</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
+			<span data-uix-layer-badge="morfo">morfo</span>
+			<span data-uix-tab-count>{partsList.length}p · 0e</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
+			<span data-uix-layer-badge="sema">sema</span>
+			<span data-uix-tab-count>{events.length}</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}
+			>Recipe</button
+		>
+		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
+	</div>
+
+	{#if tab === 'live'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Controls</h2>
+			<p data-uix-section-desc>
+				Link is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. Inherits
+				ambient typography; local concerns are color + underline + size.
+			</p>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> props · visual treatment
+			</div>
+			<div data-uix-controls>
+				<label data-uix-control>
+					<span data-uix-control-label>variant</span>
+					<span data-uix-chips role="radiogroup">
+						{#each variants as opt}
+							<button data-uix-chip data-active={variant === opt} onclick={() => (variant = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>underline</span>
+					<span data-uix-chips role="radiogroup">
+						{#each underlines as opt}
+							<button
+								data-uix-chip
+								data-active={underline === opt}
+								onclick={() => (underline = opt)}>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>size</span>
+					<span data-uix-chips role="radiogroup">
+						<button data-uix-chip data-active={size === ''} onclick={() => (size = '')}
+							>inherit</button
+						>
+						{#each sizes as opt}
+							<button data-uix-chip data-active={size === opt} onclick={() => (size = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>color</span>
+					<span data-uix-chips role="radiogroup">
+						{#each colors as opt}
+							<button data-uix-chip data-active={color === opt} onclick={() => (color = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label
+						>external <span data-uix-control-hint>target=_blank + SR text</span></span
+					>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={external} />
+						<span data-uix-switch-label>{external ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>disabled</span>
+					<span data-uix-switch>
+						<input type="checkbox" bind:checked={disabled} />
+						<span data-uix-switch-label>{disabled ? 'on' : 'off'}</span>
+					</span>
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>href</span>
+					<input type="text" bind:value={href} style="inline-size: 18rem;" />
+				</label>
+				<label data-uix-control>
+					<span data-uix-control-label>content</span>
+					<input type="text" bind:value={content} style="inline-size: 14rem;" />
+				</label>
+			</div>
+
+			<div data-uix-code>
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="soma">soma</span>
+					<span>n/a · link is eidos-native — equivalent markup shown</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{somaSnippet}</code></pre>
+			</div>
+
+			<div data-uix-code style="margin-top: var(--uix-space-3);">
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="eidos">eidos</span>
+					<span>visual · variant + color + external</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{eidosSnippet}</code></pre>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'api'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>API reference</h2>
+			<p data-uix-section-desc>
+				Link inherits ambient typography. Local concerns are color + underline + size. <code
+					>external</code
+				>
+				wires the standard new-tab affordance; <code>disabled</code> swaps the tag to
+				<code>{`<span aria-disabled>`}</code>.
+			</p>
+
+			<div data-uix-subsection-head>Props</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">href</td><td class="type">string</td><td class="default">—</td><td>Target URL.</td></tr>
+						<tr><td class="name">external</td><td class="type">boolean</td><td class="default">false</td><td>Adds <code>target="_blank"</code> + <code>rel</code> + SR-only "(opens in new tab)".</td></tr>
+						<tr><td class="name">variant</td><td class="type">'default' | 'subtle' | 'plain'</td><td class="default">'default'</td><td>Visual variant.</td></tr>
+						<tr><td class="name">underline</td><td class="type">'none' | 'hover' | 'always'</td><td class="default">'hover'</td><td>Underline behavior.</td></tr>
+						<tr><td class="name">size</td><td class="type">'xxs' | 'xs' | 'sm' | 'md' | 'lg' | 'xl'</td><td class="default">inherit</td><td>Size override.</td></tr>
+						<tr><td class="name">color</td><td class="type">'primary' | 'secondary' | 'neutral' | 'affirm' | 'fulfill' | 'risk' | 'threat' | 'loss'</td><td class="default">'primary'</td><td>Intent color.</td></tr>
+						<tr><td class="name">disabled</td><td class="type">boolean</td><td class="default">false</td><td>Renders <code>{`<span aria-disabled>`}</code>, drops href.</td></tr>
+						<tr><td class="name">tagStyle</td><td class="type">string</td><td class="default">—</td><td>Extra inline CSS.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Reference comparison</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
+					<tbody>
+						<tr><td class="name">radix-themes</td><td><code>&lt;Link&gt;</code></td><td>Radix has size + weight; UIX has intent palette.</td></tr>
+						<tr><td class="name">chakra-ui</td><td><code>&lt;Link&gt;</code></td><td>Chakra uses <code>colorScheme</code>; UIX restricts to intent.</td></tr>
+						<tr><td class="name">mantine</td><td><code>&lt;Anchor&gt;</code></td><td>Mantine uses free colors; UIX intent.</td></tr>
+						<tr><td class="name">shadcn/ui</td><td>recipe-only</td><td>shadcn provides Tailwind classes; UIX ships a component with external affordance.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'morfo'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Morfo contract</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Field</th><th>Value</th></tr></thead>
+					<tbody>
+						<tr><td class="name">name</td><td>{linkMorfo.name}</td></tr>
+						<tr><td class="name">kebab</td><td><code>{linkMorfo.kebab}</code></td></tr>
+						<tr><td class="name">scope</td><td>{linkMorfo.scope.join(', ')}</td></tr>
+						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
+						<tr><td class="name">events</td><td>0</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Parts</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead
+						><tr
+							><th>kebab</th><th>marker</th><th>element</th><th>archetype</th><th>optional</th
+							></tr
+						></thead
+					>
+					<tbody>
+						{#each partsList as part}
+							<tr>
+								<td class="name">{part.kebab}</td>
+								<td><code data-uix-part-marker>[{part.marker}]</code></td>
+								<td class="type">&lt;{part.defaultElement}&gt;</td>
+								<td class="type">{part.archetype}</td>
+								<td class="default">{part.optional ? 'yes' : 'no'}</td>
+							</tr>
+						{/each}
+					</tbody>
+				</table>
+			</div>
+
+			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
+				The Provider stamps <code>data-link</code> on the rendered tag (default <code>{`<a>`}</code>,
+				or <code>{`<span>`}</code> when disabled) plus <code>data-variant</code>,
+				<code>data-underline</code>, <code>data-color</code> and (when set)
+				<code>data-external</code> / <code>data-disabled</code>.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'sema'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>
+				<span data-uix-layer-badge="sema">sema</span> · events
+			</h2>
+			<p data-uix-section-desc>
+				Link declares no semantic events. Navigation / click ownership belongs to the consumer
+				(SvelteKit router, custom action, sema-driven verb on the surrounding component). If
+				Link is used as a button-style affordance (form submit, dialog action), the consumer
+				should wrap a <code>{`<Toolbar.Button>`}</code> instead — that surface owns the sema
+				commit. Hover and active visual states are CSS-only — they don't qualify as semantic
+				transitions.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'recipe'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Eidos recipe</h2>
+			<p data-uix-section-desc>
+				Recipe lives in <code>src/uix/eidos/components/link/link.css</code>. The shell selector
+				is <code>[data-link]</code>; underline behavior + color are driven by data-attrs.
+			</p>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
+					<tbody>
+						<tr><td class="name"><code>[data-link]</code></td><td><span data-uix-tag data-kind="morfo">morfo</span></td><td>Anchor / span shell.</td></tr>
+						<tr><td class="name"><code>{`[data-link][data-color='X']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Intent palette.</td></tr>
+						<tr><td class="name"><code>{`[data-link][data-underline='none'|'hover'|'always']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Underline behavior.</td></tr>
+						<tr><td class="name"><code>{`[data-link][data-variant='subtle'|'plain']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Inherits color (variant override).</td></tr>
+						<tr><td class="name"><code>[data-link]:hover</code> / <code>:active</code> / <code>:focus-visible</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Interactive states.</td></tr>
+						<tr><td class="name"><code>[data-link][data-disabled]</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Disabled (no pointer events, dimmed).</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'a11y'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Accessibility</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
+					<tbody>
+						<tr><td class="name">Role</td><td>Native HTML <code>{`<a>`}</code> when enabled. AT announce as "link".</td></tr>
+						<tr><td class="name">Disabled</td><td>Renders <code>{`<span aria-disabled="true">`}</code> without href. Out of tab order via <code>pointer-events: none</code> + missing href.</td></tr>
+						<tr><td class="name">External links</td><td>SR-only "(opens in new tab)" text + visible icon. <code>target="_blank"</code> always paired with <code>rel="noopener noreferrer"</code>.</td></tr>
+						<tr><td class="name">Focus ring</td><td>Always-on <code>:focus-visible</code> outline using <code>--color-primary-solid</code>.</td></tr>
+						<tr><td class="name">Color contrast</td><td>Each intent's text-token meets WCAG AA on the foundation surfaces.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+</div>
diff --git a/web/routes/uix/components/mark/+page.svelte b/web/routes/uix/components/mark/+page.svelte
new file mode 100644
index 000000000..69f5496a6
--- /dev/null
+++ b/web/routes/uix/components/mark/+page.svelte
@@ -0,0 +1,402 @@
+<script lang="ts">
+	import { Mark, type MarkColor } from '$uix/eidos/components/mark';
+	import { compileMorfo } from '$uix/morfo';
+	import { markMorfo } from '@/uix/morfo/components/mark';
+
+	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type TraceEntry = { event: string; family: string; intent?: string; at: number };
+	let tab = $state<Tab>('live');
+	let trace = $state<TraceEntry[]>([]);
+	let stageRef = $state<HTMLElement | null>(null);
+
+	let color = $state<MarkColor>('fulfill');
+	let content = $state<string>('dolor sit');
+
+	const colors: MarkColor[] = [
+		'primary',
+		'secondary',
+		'neutral',
+		'affirm',
+		'fulfill',
+		'risk',
+		'threat',
+		'loss'
+	];
+
+	const compiled = compileMorfo(markMorfo);
+	const partsList = $derived([...compiled.parts.byKebab.values()]);
+	const events = $derived([...compiled.actions.byName.values()]);
+
+	$effect(() => {
+		const el = stageRef;
+		if (!el) return;
+		const obs = new MutationObserver((mutations) => {
+			for (const m of mutations) {
+				if (m.attributeName !== 'data-event') continue;
+				const target = m.target as Element;
+				const ev = target.getAttribute('data-event');
+				if (!ev) continue;
+				trace = [
+					{
+						event: ev,
+						family: target.getAttribute('data-event-family') ?? '—',
+						intent: target.getAttribute('data-event-intent') ?? undefined,
+						at: Date.now()
+					},
+					...trace
+				].slice(0, 6);
+			}
+		});
+		obs.observe(el, { attributes: true, subtree: true, attributeFilter: ['data-event'] });
+		return () => obs.disconnect();
+	});
+
+	const somaSnippet = $derived(
+		[
+			'<!-- Mark is eidos-native — no soma layer. -->',
+			'<!-- Equivalent markup: -->',
+			'',
+			'<mark',
+			'  data-mark',
+			`  data-color="${color}"`,
+			'>',
+			`  ${content}`,
+			'</mark>'
+		].join('\n')
+	);
+
+	const eidosSnippet = $derived(
+		[
+			"<script lang='ts'>",
+			"  import { Mark } from '$uix/eidos/components/mark';",
+			'</' + 'script>',
+			'',
+			'<Mark',
+			color !== 'fulfill' && `  color="${color}"`,
+			'>',
+			'  ' + content,
+			'</Mark>'
+		]
+			.filter(Boolean)
+			.join('\n')
+	);
+</script>
+
+<div data-uix-canvas-inner>
+	<header>
+		<div data-uix-eyebrow>Typography · Mark</div>
+		<h1 data-uix-page-title>Mark</h1>
+		<p data-uix-page-lede>
+			Inline text highlight primitive. Renders <code>{`<mark>`}</code> with a soft background tint
+			per intent color. Inherits the ambient typography so it composes seamlessly inside Text /
+			Heading / Code. For substring highlighting of search-result hits, see the higher-level
+			<code>{`<Highlight>`}</code>
+			primitive. Single part. Eidos-native: no soma backing, no semantic events.
+		</p>
+		<div data-uix-page-meta>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>parts</span>{compiled.parts.order.length}
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>events</span>0
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>colors</span>8
+			</span>
+			<span data-uix-meta-pill>
+				<span data-uix-meta-key>scope</span>eidos
+			</span>
+		</div>
+	</header>
+
+	<div data-uix-stage>
+		<div data-uix-stage-area bind:this={stageRef}>
+			<p
+				style="max-inline-size: 38rem; padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md); font: inherit;"
+			>
+				Lorem ipsum
+				<Mark {color}>{content}</Mark>
+				amet, consectetur adipiscing elit.
+			</p>
+		</div>
+		<div data-uix-stage-trace>
+			<span data-uix-stage-trace-key>trace</span>
+			<span>{trace.length === 0 ? 'no semantic events' : `${trace.length} event(s)`}</span>
+			<span style="color: var(--uix-text-faint)">·</span>
+			<span data-uix-stage-trace-key>color</span>
+			<span>{color}</span>
+		</div>
+	</div>
+
+	<div data-uix-tabs role="tablist">
+		<button data-uix-tab data-active={tab === 'live'} onclick={() => (tab = 'live')}>Live</button>
+		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
+			API <span data-uix-tab-count>4</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'morfo'} onclick={() => (tab = 'morfo')}>
+			<span data-uix-layer-badge="morfo">morfo</span>
+			<span data-uix-tab-count>{partsList.length}p · 0e</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'sema'} onclick={() => (tab = 'sema')}>
+			<span data-uix-layer-badge="sema">sema</span>
+			<span data-uix-tab-count>{events.length}</span>
+		</button>
+		<button data-uix-tab data-active={tab === 'recipe'} onclick={() => (tab = 'recipe')}
+			>Recipe</button
+		>
+		<button data-uix-tab data-active={tab === 'a11y'} onclick={() => (tab = 'a11y')}>A11y</button>
+	</div>
+
+	{#if tab === 'live'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Controls</h2>
+			<p data-uix-section-desc>
+				Mark is eidos-native — no <span data-uix-layer-badge="soma">soma</span> split. The
+				<code>color</code>
+				accepts the full intent palette; the highlight inherits ambient typography.
+			</p>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> props · highlight
+			</div>
+			<div data-uix-controls>
+				<label data-uix-control>
+					<span data-uix-control-label>color</span>
+					<span data-uix-chips role="radiogroup">
+						{#each colors as opt}
+							<button data-uix-chip data-active={color === opt} onclick={() => (color = opt)}
+								>{opt}</button
+							>
+						{/each}
+					</span>
+				</label>
+				<label data-uix-control style="grid-column: span 2;">
+					<span data-uix-control-label>content</span>
+					<input type="text" bind:value={content} style="inline-size: 100%; font: inherit;" />
+				</label>
+			</div>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> color gallery
+			</div>
+			<div
+				style="display: grid; grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr)); gap: var(--space-2); padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md);"
+			>
+				{#each colors as opt}
+					<div style="display: flex; align-items: center; gap: 0.5em;">
+						<span
+							style="color: var(--color-content-muted); font-size: var(--font-size-xs); min-inline-size: 5em;"
+						>
+							{opt}
+						</span>
+						<Mark color={opt}>highlight</Mark>
+					</div>
+				{/each}
+			</div>
+
+			<div data-uix-subsection-head>
+				<span data-uix-layer-badge="eidos">eidos</span> inline composition
+			</div>
+			<div
+				style="padding: var(--space-3); border: 1px dashed var(--color-neutral-border); border-radius: var(--radius-md); display: flex; flex-direction: column; gap: var(--space-2);"
+			>
+				<p style="margin: 0;">
+					Search returned <Mark color="affirm">3 matches</Mark> for the query
+					<Mark color="primary">"typography"</Mark>.
+				</p>
+				<p style="margin: 0;">
+					Deadline approaching: <Mark color="threat">2 days remaining</Mark>.
+				</p>
+				<p style="margin: 0;">
+					The file <Mark color="risk">deleted.txt</Mark> cannot be recovered.
+				</p>
+			</div>
+
+			<div data-uix-code>
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="soma">soma</span>
+					<span>n/a · mark is eidos-native — equivalent markup shown</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{somaSnippet}</code></pre>
+			</div>
+
+			<div data-uix-code style="margin-top: var(--uix-space-3);">
+				<div data-uix-code-head>
+					<span data-uix-layer-badge="eidos">eidos</span>
+					<span>visual · intent tint</span>
+					<span data-uix-code-lang>svelte</span>
+				</div>
+				<pre><code>{eidosSnippet}</code></pre>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'api'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>API reference</h2>
+			<p data-uix-section-desc>
+				Mark inherits the ambient typography and decorates with a soft background tint. The
+				intent palette is the canonical ColorRole union, so highlights follow the theme.
+			</p>
+
+			<div data-uix-subsection-head>Props</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Prop</th><th>Type</th><th>Default</th><th>Notes</th></tr></thead>
+					<tbody>
+						<tr><td class="name">color</td><td class="type">'primary' | 'secondary' | 'neutral' | 'affirm' | 'fulfill' | 'risk' | 'threat' | 'loss'</td><td class="default">'fulfill'</td><td>Intent palette for the highlight tint.</td></tr>
+						<tr><td class="name">as</td><td class="type">string</td><td class="default">'mark'</td><td>Override rendered tag.</td></tr>
+						<tr><td class="name">tagStyle</td><td class="type">string</td><td class="default">—</td><td>Extra inline CSS.</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Composability examples</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Use case</th><th>Snippet</th></tr></thead>
+					<tbody>
+						<tr>
+							<td class="name">Search-result hit</td>
+							<td><code>{`<Mark color="fulfill">match</Mark>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Attention grab</td>
+							<td><code>{`<Mark color="threat">deadline</Mark>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Affirmative confirmation</td>
+							<td><code>{`<Mark color="affirm">approved</Mark>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Destructive marker</td>
+							<td><code>{`<Mark color="risk">removed</Mark>`}</code></td>
+						</tr>
+						<tr>
+							<td class="name">Inside a Heading</td>
+							<td>
+								<code>{`<Heading><Mark color="primary">UIX</Mark> typography</Heading>`}</code>
+							</td>
+						</tr>
+						<tr>
+							<td class="name">Multiple highlights in flow</td>
+							<td>
+								<code>{`<p>...<Mark>first</Mark>...<Mark color="neutral">aside</Mark>...</p>`}</code>
+							</td>
+						</tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Reference comparison</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Library</th><th>Closest equivalent</th><th>Difference</th></tr></thead>
+					<tbody>
+						<tr><td class="name">radix-themes</td><td>—</td><td>Radix has no dedicated Mark; consumer uses Text with custom bg.</td></tr>
+						<tr><td class="name">chakra-ui</td><td><code>&lt;Mark&gt;</code> via Highlight</td><td>Chakra wraps via Highlight only.</td></tr>
+						<tr><td class="name">mantine</td><td><code>&lt;Mark&gt;</code></td><td>Mantine has free <code>color</code>; UIX restricts to intent palette.</td></tr>
+						<tr><td class="name">MDN <code>&lt;mark&gt;</code></td><td>HTML primitive</td><td>UIX wraps with intent palette + theme contract.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'morfo'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Morfo contract</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Field</th><th>Value</th></tr></thead>
+					<tbody>
+						<tr><td class="name">name</td><td>{markMorfo.name}</td></tr>
+						<tr><td class="name">kebab</td><td><code>{markMorfo.kebab}</code></td></tr>
+						<tr><td class="name">scope</td><td>{markMorfo.scope.join(', ')}</td></tr>
+						<tr><td class="name">parts</td><td>{partsList.length}</td></tr>
+						<tr><td class="name">events</td><td>0</td></tr>
+					</tbody>
+				</table>
+			</div>
+
+			<div data-uix-subsection-head>Parts</div>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead
+						><tr
+							><th>kebab</th><th>marker</th><th>element</th><th>archetype</th><th>optional</th
+							></tr
+						></thead
+					>
+					<tbody>
+						{#each partsList as part}
+							<tr>
+								<td class="name">{part.kebab}</td>
+								<td><code data-uix-part-marker>[{part.marker}]</code></td>
+								<td class="type">&lt;{part.defaultElement}&gt;</td>
+								<td class="type">{part.archetype}</td>
+								<td class="default">{part.optional ? 'yes' : 'no'}</td>
+							</tr>
+						{/each}
+					</tbody>
+				</table>
+			</div>
+
+			<p data-uix-section-desc style="margin-top: var(--uix-space-4);">
+				The Provider stamps <code>data-mark</code> on the rendered tag (default
+				<code>{`<mark>`}</code>) plus <code>data-color</code>.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'sema'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>
+				<span data-uix-layer-badge="sema">sema</span> · events
+			</h2>
+			<p data-uix-section-desc>
+				Mark declares no semantic events. The highlight is a decorator — no commit, no emerge.
+				If a consumer animates the appearance of marked text (search-result flash), the
+				animation belongs to the containing list or popover surface.
+			</p>
+		</section>
+	{/if}
+
+	{#if tab === 'recipe'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Eidos recipe</h2>
+			<p data-uix-section-desc>
+				Recipe lives in <code>src/uix/eidos/components/mark/mark.css</code>. The selector
+				<code>[data-mark]</code>
+				inherits typography; <code>data-color</code> swaps the bg + text palette.
+			</p>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Selector</th><th>Owner</th><th>Purpose</th></tr></thead>
+					<tbody>
+						<tr><td class="name"><code>[data-mark]</code></td><td><span data-uix-tag data-kind="morfo">morfo</span></td><td>Provider marker. Default fulfill tint.</td></tr>
+						<tr><td class="name"><code>{`[data-mark][data-color='X']`}</code></td><td><span data-uix-tag data-kind="eidos">eidos</span></td><td>Intent palette: primary / secondary / neutral / affirm / fulfill / risk / threat / loss.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+
+	{#if tab === 'a11y'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Accessibility</h2>
+			<div data-uix-table-wrap>
+				<table data-uix-table>
+					<thead><tr><th>Concern</th><th>Contract</th></tr></thead>
+					<tbody>
+						<tr><td class="name">Role</td><td>Native HTML <code>{`<mark>`}</code> semantics. Some screen readers announce as "highlighted" or "marked" — but the announcement is implementation-defined, so don't rely on it for meaningful semantics.</td></tr>
+						<tr><td class="name">For required emphasis</td><td>Use <code>{`<strong>`}</code> or <code>{`<em>`}</code> — both carry semantic emphasis. Mark is decorative.</td></tr>
+						<tr><td class="name">Color contrast</td><td>Each intent's bg + text combination meets WCAG AA via the foundation contract.</td></tr>
+						<tr><td class="name">Composition</td><td>Mark inherits typography — composes inside any inline-flow primitive without breaking the parent's line height.</td></tr>
+					</tbody>
+				</table>
+			</div>
+		</section>
+	{/if}
+</div>