fix(eidos): button tonal variants render bg/border + variants×colors gallery

The recipe defined per-color tonal tokens inconsistently — only fulfill/loss had
`track`/`border`, so soft/surface/outline rendered with no background or border
for the other 6 colors (primary/secondary/neutral/affirm/risk/threat):
`palette-track`/`palette-border` referenced undefined `--button-{color}-track`/
`-border`, which collapsed the background/border declarations. Added the missing
track+border to all 6 (mapped to `var(--color-{role}-track|border)` like
fulfill/loss); the recipe is now uniform (7 slots per color). Verified all 8
colors × soft/surface/outline in dark + light.

Demo: new "Gallery" tab — a 6 variants × 8 colors matrix of real <Button>s
(hierarchy via `color`, evaluative palette via `intent`).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/uix/eidos/generated/base.css

@@ -1605,22 +1605,30 @@
 	--button-transition-ease: var(--ease-default);
 	--button-spinner-duration: 720ms;
 	--button-disabled-opacity: 0.5;
+	--button-primary-track: var(--color-primary-track);
 	--button-primary-element: var(--color-primary-element);
+	--button-primary-border: var(--color-primary-border);
 	--button-primary-solid: var(--color-primary-solid);
 	--button-primary-solid-hover: var(--color-primary-solid-hover);
 	--button-primary-text: var(--color-primary-text);
 	--button-primary-contrast: var(--color-primary-contrast);
+	--button-secondary-track: var(--color-secondary-track);
 	--button-secondary-element: var(--color-secondary-element);
+	--button-secondary-border: var(--color-secondary-border);
 	--button-secondary-solid: var(--color-secondary-solid);
 	--button-secondary-solid-hover: var(--color-secondary-solid-hover);
 	--button-secondary-text: var(--color-secondary-text);
 	--button-secondary-contrast: var(--color-secondary-contrast);
+	--button-neutral-track: var(--color-neutral-track);
 	--button-neutral-element: var(--color-neutral-element);
+	--button-neutral-border: var(--color-neutral-border);
 	--button-neutral-solid: var(--color-neutral-solid);
 	--button-neutral-solid-hover: var(--color-neutral-solid-hover);
 	--button-neutral-text: var(--color-neutral-text);
 	--button-neutral-contrast: var(--color-neutral-contrast);
+	--button-affirm-track: var(--color-affirm-track);
 	--button-affirm-element: var(--color-affirm-element);
+	--button-affirm-border: var(--color-affirm-border);
 	--button-affirm-solid: var(--color-affirm-solid);
 	--button-affirm-solid-hover: var(--color-affirm-solid-hover);
 	--button-affirm-text: var(--color-affirm-text);
@@ -1632,12 +1640,16 @@
 	--button-fulfill-solid-hover: var(--color-fulfill-solid-hover);
 	--button-fulfill-text: var(--color-fulfill-text);
 	--button-fulfill-contrast: var(--color-fulfill-contrast);
+	--button-risk-track: var(--color-risk-track);
 	--button-risk-element: var(--color-risk-element);
+	--button-risk-border: var(--color-risk-border);
 	--button-risk-solid: var(--color-risk-solid);
 	--button-risk-solid-hover: var(--color-risk-solid-hover);
 	--button-risk-text: var(--color-risk-text);
 	--button-risk-contrast: var(--color-risk-contrast);
+	--button-threat-track: var(--color-threat-track);
 	--button-threat-element: var(--color-threat-element);
+	--button-threat-border: var(--color-threat-border);
 	--button-threat-solid: var(--color-threat-solid);
 	--button-threat-solid-hover: var(--color-threat-solid-hover);
 	--button-threat-text: var(--color-threat-text);

src/uix/eidos/lib/recipes/base.ts

@@ -1512,23 +1512,34 @@ export const THEME_BASE_RECIPE_TOKENS = {
 		'transition-ease': 'var(--ease-default)',
 		'spinner-duration': '720ms',
 		'disabled-opacity': '0.5',
-		// Per-color palettes (8 system tokens)
+		// Per-color palettes — 7 slots per color, uniform across all 8: track /
+		// element / border / solid / solid-hover / text / contrast. soft + surface
+		// + outline variants read track/border, so every color must define them
+		// (was only fulfill/loss — the others rendered with no bg/border).
+		'primary-track': 'var(--color-primary-track)',
 		'primary-element': 'var(--color-primary-element)',
+		'primary-border': 'var(--color-primary-border)',
 		'primary-solid': 'var(--color-primary-solid)',
 		'primary-solid-hover': 'var(--color-primary-solid-hover)',
 		'primary-text': 'var(--color-primary-text)',
 		'primary-contrast': 'var(--color-primary-contrast)',
+		'secondary-track': 'var(--color-secondary-track)',
 		'secondary-element': 'var(--color-secondary-element)',
+		'secondary-border': 'var(--color-secondary-border)',
 		'secondary-solid': 'var(--color-secondary-solid)',
 		'secondary-solid-hover': 'var(--color-secondary-solid-hover)',
 		'secondary-text': 'var(--color-secondary-text)',
 		'secondary-contrast': 'var(--color-secondary-contrast)',
+		'neutral-track': 'var(--color-neutral-track)',
 		'neutral-element': 'var(--color-neutral-element)',
+		'neutral-border': 'var(--color-neutral-border)',
 		'neutral-solid': 'var(--color-neutral-solid)',
 		'neutral-solid-hover': 'var(--color-neutral-solid-hover)',
 		'neutral-text': 'var(--color-neutral-text)',
 		'neutral-contrast': 'var(--color-neutral-contrast)',
+		'affirm-track': 'var(--color-affirm-track)',
 		'affirm-element': 'var(--color-affirm-element)',
+		'affirm-border': 'var(--color-affirm-border)',
 		'affirm-solid': 'var(--color-affirm-solid)',
 		'affirm-solid-hover': 'var(--color-affirm-solid-hover)',
 		'affirm-text': 'var(--color-affirm-text)',
@@ -1540,12 +1551,16 @@ export const THEME_BASE_RECIPE_TOKENS = {
 		'fulfill-solid-hover': 'var(--color-fulfill-solid-hover)',
 		'fulfill-text': 'var(--color-fulfill-text)',
 		'fulfill-contrast': 'var(--color-fulfill-contrast)',
+		'risk-track': 'var(--color-risk-track)',
 		'risk-element': 'var(--color-risk-element)',
+		'risk-border': 'var(--color-risk-border)',
 		'risk-solid': 'var(--color-risk-solid)',
 		'risk-solid-hover': 'var(--color-risk-solid-hover)',
 		'risk-text': 'var(--color-risk-text)',
 		'risk-contrast': 'var(--color-risk-contrast)',
+		'threat-track': 'var(--color-threat-track)',
 		'threat-element': 'var(--color-threat-element)',
+		'threat-border': 'var(--color-threat-border)',
 		'threat-solid': 'var(--color-threat-solid)',
 		'threat-solid-hover': 'var(--color-threat-solid-hover)',
 		'threat-text': 'var(--color-threat-text)',
@@ -3227,7 +3242,8 @@ export const THEME_BASE_RECIPE_TOKENS = {
 		// base theme (invisible against panels), so the track uses the same
 		// visible-track mix as Progress: a light tint of content-primary on the
 		// surface. Reads on white AND dark, and follows the theme.
-		'track-bg': 'color-mix(in srgb, var(--color-content-primary) 12%, var(--color-surface-default))',
+		'track-bg':
+			'color-mix(in srgb, var(--color-content-primary) 12%, var(--color-surface-default))',
 		'range-bg': 'var(--color-primary-solid)',
 		'thumb-radius': 'var(--radius-full)',
 		'thumb-border-width': 'var(--border-width)',

web/routes/uix/components/button/+page.svelte

@@ -30,7 +30,7 @@
 		x: Icon.X
 	} as const;
 
-	type Tab = 'live' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
+	type Tab = 'live' | 'gallery' | 'api' | 'morfo' | 'sema' | 'recipe' | 'a11y';
 	let tab = $state<Tab>('live');
 
 	const variants: ButtonVariant[] = ['solid', 'soft', 'surface', 'outline', 'ghost', 'plain'];
@@ -40,6 +40,20 @@
 	const colors: Array<'primary' | 'secondary' | 'neutral'> = ['primary', 'secondary', 'neutral'];
 	const types: Array<'button' | 'submit' | 'reset'> = ['button', 'submit', 'reset'];
 
+	// Gallery: all 8 color roles. Hierarchy (primary/secondary/neutral) rides the
+	// `color` prop; the evaluative palette (affirm/fulfill/risk/threat/loss) rides
+	// `intent`, which wins on data-color.
+	const gallery: Array<{ name: string; color?: 'primary' | 'secondary' | 'neutral'; intent: ButtonIntent }> = [
+		{ name: 'primary', color: 'primary', intent: 'neutral' },
+		{ name: 'secondary', color: 'secondary', intent: 'neutral' },
+		{ name: 'neutral', color: 'neutral', intent: 'neutral' },
+		{ name: 'affirm', intent: 'affirm' },
+		{ name: 'fulfill', intent: 'fulfill' },
+		{ name: 'risk', intent: 'risk' },
+		{ name: 'threat', intent: 'threat' },
+		{ name: 'loss', intent: 'loss' }
+	];
+
 	// ── Live state ────────────────────────────────────────────────────────
 	// Soma
 	let intent = $state<ButtonIntent>('neutral');
@@ -244,6 +258,9 @@
 	<!-- Tabs -->
 	<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 === 'gallery'} onclick={() => (tab = 'gallery')}>
+			Gallery <span data-uix-tab-count>{variants.length}×{gallery.length}</span>
+		</button>
 		<button data-uix-tab data-active={tab === 'api'} onclick={() => (tab = 'api')}>
 			API <span data-uix-tab-count>2</span>
 		</button>
@@ -455,6 +472,32 @@
 		</section>
 	{/if}
 
+	{#if tab === 'gallery'}
+		<section data-uix-section>
+			<h2 data-uix-section-title>Variants × colors</h2>
+			<p data-uix-section-desc>
+				Every <span data-uix-layer-badge="eidos">eidos</span> variant across all 8 color roles.
+				Hierarchy (<code>primary</code> / <code>secondary</code> / <code>neutral</code>) rides the
+				<code>color</code> prop; the evaluative palette (<code>affirm</code> / <code>fulfill</code>
+				/ <code>risk</code> / <code>threat</code> / <code>loss</code>) rides <code>intent</code>,
+				which wins on <code>data-color</code>.
+			</p>
+			<div style="display: flex; flex-direction: column; gap: 0.85rem;">
+				{#each variants as v}
+					<div style="display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap;">
+						<span
+							style="inline-size: 60px; flex-shrink: 0; font-family: monospace; font-size: 12px; color: var(--uix-text-faint);"
+							>{v}</span
+						>
+						{#each gallery as c}
+							<Button variant={v} color={c.color} intent={c.intent} size="sm">{c.name}</Button>
+						{/each}
+					</div>
+				{/each}
+			</div>
+		</section>
+	{/if}
+
 	{#if tab === 'api'}
 		<section data-uix-section>
 			<h2 data-uix-section-title>API reference</h2>