feat(desktop): redesign skills market

Refresh the skills market catalog and detail surfaces with denser workbench layouts, clearer action hierarchy, and updated status treatments.

Tested: bun run check:desktop
Tested: real browser smoke for list, detail, filters, install confirmation, and light/dark themes
Confidence: high
Scope-risk: narrow

desktop/src/components/market/FilterBar.tsx

@@ -1,3 +1,4 @@
+import { ChevronDown } from 'lucide-react'
 import { useTranslation } from '../../i18n'
 import { Dropdown } from '../shared/Dropdown'
 import { useMarketStore, type MarketFilters } from '../../stores/marketStore'
@@ -9,19 +10,19 @@ import type {
 
 function FilterTrigger({ label, value, active }: { label: string; value: string; active: boolean }) {
   return (
-    <span
-      className={`inline-flex min-h-9 items-center gap-1.5 rounded-xl border px-3 text-xs transition-colors ${
+    <button
+      type="button"
+      aria-haspopup="menu"
+      className={`inline-flex min-h-10 items-center gap-1.5 rounded-lg border px-3 text-xs transition-colors focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:scale-[0.98] ${
         active
-          ? 'border-[var(--color-brand)] bg-[var(--color-surface)] text-[var(--color-brand)]'
-          : 'border-[var(--color-border)] bg-[var(--color-surface)] text-[var(--color-text-secondary)] hover:border-[var(--color-border-focus)]'
+          ? 'border-[var(--color-brand)]/35 bg-[var(--color-primary-fixed)] text-[var(--color-brand)]'
+          : 'border-[var(--color-border)] bg-[var(--color-surface-container-lowest)] text-[var(--color-text-secondary)] hover:border-[var(--color-border-focus)] hover:bg-[var(--color-surface-hover)]'
       }`}
     >
-      <span className="text-[var(--color-text-tertiary)]">{label}</span>
+      <span className={active ? 'text-[var(--color-brand)]/75' : 'text-[var(--color-text-tertiary)]'}>{label}</span>
       <span className="font-medium">{value}</span>
-      <span className="material-symbols-outlined text-[14px]" aria-hidden>
-        expand_more
-      </span>
-    </span>
+      <ChevronDown className="h-3.5 w-3.5" strokeWidth={2} aria-hidden="true" />
+    </button>
   )
 }
 

desktop/src/components/market/InstallStateBadge.tsx

@@ -1,19 +1,20 @@
+import { CheckCircle2, CircleSlash2, Download, type LucideIcon } from 'lucide-react'
 import { useTranslation } from '../../i18n'
 import type { InstallState } from '../../types/market'
 
-const STYLES: Record<InstallState, { icon: string; className: string }> = {
+const STYLES: Record<InstallState, { icon: LucideIcon; className: string }> = {
   installed: {
-    icon: 'check_circle',
-    className: 'bg-[var(--color-success-container)] text-[var(--color-success)]',
+    icon: CheckCircle2,
+    className: 'border-[var(--color-success)]/20 bg-[var(--color-success-container)] text-[var(--color-success)]',
   },
   installable: {
-    icon: 'download',
+    icon: Download,
     // brand-on-neutral keeps AA contrast in all three themes (brand-on-primary-fixed is 1.3:1 in dark).
-    className: 'bg-[var(--color-surface-container)] text-[var(--color-brand)]',
+    className: 'border-[var(--color-brand)]/20 bg-[var(--color-surface-container-low)] text-[var(--color-brand)]',
   },
   'not-installable': {
-    icon: 'block',
-    className: 'bg-[var(--color-error-container)] text-[var(--color-error)]',
+    icon: CircleSlash2,
+    className: 'border-[var(--color-error)]/20 bg-[var(--color-error-container)] text-[var(--color-error)]',
   },
 }
 
@@ -26,14 +27,13 @@ const LABEL_KEYS: Record<InstallState, 'market.install.state.installed' | 'marke
 export function InstallStateBadge({ state, className = '' }: { state: InstallState; className?: string }) {
   const t = useTranslation()
   const style = STYLES[state]
+  const Icon = style.icon
   return (
     <span
       data-testid={`install-badge-${state}`}
-      className={`inline-flex items-center gap-1 rounded-full px-2 py-0.5 text-[10px] font-medium whitespace-nowrap ${style.className} ${className}`}
+      className={`inline-flex items-center gap-1.5 whitespace-nowrap rounded-md border px-2 py-1 text-[11px] font-medium ${style.className} ${className}`}
     >
-      <span className="material-symbols-outlined text-[12px]" aria-hidden>
-        {style.icon}
-      </span>
+      <Icon className="h-3.5 w-3.5" strokeWidth={2} aria-hidden="true" />
       {t(LABEL_KEYS[state])}
     </span>
   )

desktop/src/components/market/MarketDisclaimer.tsx

@@ -1,4 +1,5 @@
 import { useState } from 'react'
+import { ShieldAlert, X } from 'lucide-react'
 import { useTranslation } from '../../i18n'
 
 const STORAGE_KEY = 'cc-haha-market-disclaimer-dismissed'
@@ -26,12 +27,10 @@ export function MarketDisclaimer() {
     <div
       role="note"
       data-testid="market-disclaimer"
-      className="flex items-start gap-3 rounded-xl border border-[var(--color-warning)]/35 bg-[var(--color-warning-container)] px-4 py-3"
+      className="flex items-start gap-3 rounded-lg border border-[var(--color-warning)]/20 border-l-2 bg-[var(--color-surface-container-low)] px-3.5 py-2.5"
     >
-      <span className="material-symbols-outlined mt-0.5 flex-shrink-0 text-[18px] text-[var(--color-warning)]" aria-hidden>
-        gpp_maybe
-      </span>
-      <p className="min-w-0 flex-1 text-xs leading-5 text-[var(--color-text-secondary)]">
+      <ShieldAlert className="mt-0.5 h-4 w-4 flex-shrink-0 text-[var(--color-warning)]" strokeWidth={2} aria-hidden="true" />
+      <p className="min-w-0 flex-1 text-[11px] leading-[18px] text-[var(--color-text-secondary)] sm:text-xs sm:leading-5">
         <span className="font-semibold text-[var(--color-text-primary)]">{t('market.disclaimer.title')}</span>{' '}
         {t('market.disclaimer.body')}
       </p>
@@ -46,11 +45,9 @@ export function MarketDisclaimer() {
             // Persisting is best-effort; the banner stays dismissed for this session.
           }
         }}
-        className="inline-flex h-7 w-7 flex-shrink-0 cursor-pointer items-center justify-center rounded-full text-[var(--color-text-tertiary)] transition-colors hover:bg-[var(--color-warning)]/10 hover:text-[var(--color-text-primary)]"
+        className="-mr-1 inline-flex h-8 w-8 flex-shrink-0 cursor-pointer items-center justify-center rounded-md text-[var(--color-text-tertiary)] transition-colors hover:bg-[var(--color-surface-hover)] hover:text-[var(--color-text-primary)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:scale-[0.98]"
       >
-        <span className="material-symbols-outlined text-[16px]" aria-hidden>
-          close
-        </span>
+        <X className="h-4 w-4" strokeWidth={2} aria-hidden="true" />
       </button>
     </div>
   )

desktop/src/components/market/MarketHome.test.tsx

@@ -0,0 +1,68 @@
+import { beforeEach, describe, expect, it, vi } from 'vitest'
+import { render, screen } from '@testing-library/react'
+import '@testing-library/jest-dom'
+
+import { useSettingsStore } from '../../stores/settingsStore'
+import { useMarketStore } from '../../stores/marketStore'
+import type { NormalizedSkill } from '../../types/market'
+import { MarketHome } from './MarketHome'
+
+function makeSkill(overrides: Partial<NormalizedSkill> = {}): NormalizedSkill {
+  return {
+    id: 'clawhub:demo',
+    source: 'clawhub',
+    slug: 'demo',
+    name: 'Demo Skill',
+    summary: 'A focused demo skill',
+    author: { handle: 'alice', displayName: 'Alice' },
+    stats: { downloads: 1_240, stars: 18 },
+    tags: ['workflow'],
+    version: '1.0.0',
+    securityStatus: 'benign',
+    installState: 'installable',
+    ...overrides,
+  }
+}
+
+beforeEach(() => {
+  localStorage.clear()
+  useSettingsStore.setState({ locale: 'en' })
+  useMarketStore.setState({
+    items: [makeSkill()],
+    nextCursor: null,
+    sources: {
+      clawhub: { status: 'ok' },
+      skillhub: { status: 'cached', fetchedAt: 1_700_000_000_000 },
+    },
+    query: '',
+    filters: { source: 'all', security: 'all', installed: 'all' },
+    isLoading: false,
+    isLoadingMore: false,
+    error: null,
+    installingIds: new Set(),
+  })
+})
+
+describe('MarketHome', () => {
+  it('renders the compact catalog header, command bar, sources and semantic cards', () => {
+    render(<MarketHome onRequestInstall={vi.fn()} />)
+
+    expect(screen.getByRole('heading', { name: 'Skills Market' })).toBeInTheDocument()
+    expect(screen.getByTestId('market-search-input')).toBeInTheDocument()
+    expect(screen.getByTestId('market-filter-bar')).toBeInTheDocument()
+    expect(screen.getByTestId('market-source-status-clawhub')).toHaveTextContent('Online')
+    expect(screen.getByTestId('market-source-status-skillhub')).toHaveTextContent('Cached')
+    expect(screen.getByTestId('market-grid')).toContainElement(screen.getByRole('article'))
+    expect(screen.getByRole('button', { name: 'Demo Skill' })).toBeInTheDocument()
+    expect(screen.getByText('1 skills')).toBeInTheDocument()
+  })
+
+  it('uses a catalog-shaped skeleton while the first page is loading', () => {
+    useMarketStore.setState({ items: [], isLoading: true })
+
+    render(<MarketHome onRequestInstall={vi.fn()} />)
+
+    expect(screen.getByTestId('market-loading')).toHaveAttribute('aria-label', 'Loading skills…')
+    expect(screen.queryByTestId('market-grid')).not.toBeInTheDocument()
+  })
+})

desktop/src/components/market/MarketHome.tsx

@@ -1,4 +1,5 @@
 import { useEffect } from 'react'
+import { CloudOff, PackageSearch, RefreshCw, Search, Store, X } from 'lucide-react'
 import { useTranslation } from '../../i18n'
 import { useMarketStore } from '../../stores/marketStore'
 import { FilterBar } from './FilterBar'
@@ -35,73 +36,81 @@ export function MarketHome({ onRequestInstall }: { onRequestInstall: (id: string
   const hasQuery = query.trim().length > 0
 
   return (
-    <div className="flex min-h-0 flex-1 flex-col overflow-y-auto">
-      <div className="mx-auto flex w-full max-w-6xl flex-col gap-4 px-6 py-6">
-        <MarketDisclaimer />
-        <section className="rounded-2xl border border-[var(--color-border)] bg-[var(--color-surface-container-low)] px-5 py-5">
-          <div className="flex flex-wrap items-start justify-between gap-4">
+    <div className="flex min-h-0 flex-1 flex-col overflow-y-auto bg-[var(--color-surface-container-lowest)]">
+      <header className="shrink-0 border-b border-[var(--color-border)]/70 bg-[var(--color-surface)]">
+        <div className="mx-auto flex w-full max-w-[1400px] flex-wrap items-center justify-between gap-5 px-6 py-6 lg:px-8">
+          <div className="flex min-w-0 items-center gap-3.5">
+            <span className="flex h-11 w-11 flex-shrink-0 items-center justify-center rounded-xl border border-[var(--color-border)] bg-[var(--color-surface-container-low)] text-[var(--color-brand)] shadow-[0_1px_2px_rgba(27,28,26,0.06)]">
+              <Store className="h-5 w-5" strokeWidth={1.9} aria-hidden="true" />
+            </span>
             <div className="min-w-0">
-              <div className="mb-1 flex items-center gap-2.5">
-                <span className="material-symbols-outlined text-[22px] text-[var(--color-brand)]">storefront</span>
-                <h2 className="text-lg font-semibold text-[var(--color-text-primary)]">{t('market.title')}</h2>
-              </div>
-              <p className="text-sm leading-6 text-[var(--color-text-secondary)]">{t('market.subtitle')}</p>
+              <h1 className="text-[22px] font-semibold leading-7 tracking-[-0.025em] text-[var(--color-text-primary)]">
+                {t('market.title')}
+              </h1>
+              <p className="mt-0.5 max-w-2xl text-[13px] leading-5 text-[var(--color-text-secondary)]">
+                {t('market.subtitle')}
+              </p>
             </div>
-            <SourceStatusBar sources={sources} />
           </div>
+          <SourceStatusBar sources={sources} />
+        </div>
+      </header>
 
-          <div className="mt-4 flex flex-wrap items-center gap-2">
-            <div className="flex min-h-10 min-w-[260px] flex-1 items-center gap-2 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface)] px-3 transition-colors focus-within:border-[var(--color-border-focus)] focus-within:ring-2 focus-within:ring-[var(--color-brand)]/20">
-              <span className="material-symbols-outlined text-[18px] text-[var(--color-text-tertiary)]">search</span>
+      <div className="mx-auto flex w-full max-w-[1400px] flex-col gap-4 px-6 py-5 lg:px-8">
+        <MarketDisclaimer />
+
+        <section className="sticky top-0 z-20 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface-glass)] p-2.5 shadow-[0_8px_24px_rgba(27,28,26,0.06)] backdrop-blur-xl">
+          <div className="flex flex-wrap items-center gap-2.5">
+            <div className="flex min-h-10 min-w-[260px] flex-1 items-center gap-2 rounded-lg border border-[var(--color-border)] bg-[var(--color-surface-container-lowest)] px-3 transition-colors focus-within:border-[var(--color-border-focus)] focus-within:shadow-[var(--shadow-focus-ring)]">
+              <Search className="h-4 w-4 flex-shrink-0 text-[var(--color-text-tertiary)]" strokeWidth={2} aria-hidden="true" />
               <input
                 data-testid="market-search-input"
                 value={query}
                 onChange={(event) => setQuery(event.target.value)}
                 placeholder={t('market.searchPlaceholder')}
-                className="min-w-0 flex-1 bg-transparent text-sm text-[var(--color-text-primary)] outline-none placeholder:text-[var(--color-text-tertiary)]"
+                aria-label={t('market.searchPlaceholder')}
+                className="min-w-0 flex-1 bg-transparent text-[13px] text-[var(--color-text-primary)] outline-none placeholder:text-[var(--color-text-tertiary)]"
               />
               {query && (
                 <button
                   type="button"
                   aria-label={t('market.clearSearch')}
                   onClick={() => setQuery('')}
-                  className="inline-flex h-7 w-7 items-center justify-center rounded-full text-[var(--color-text-tertiary)] transition-colors hover:text-[var(--color-text-primary)]"
+                  className="inline-flex h-7 w-7 items-center justify-center rounded-md text-[var(--color-text-tertiary)] transition-colors hover:bg-[var(--color-surface-hover)] hover:text-[var(--color-text-primary)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)]"
                 >
-                  <span className="material-symbols-outlined text-[16px]">close</span>
+                  <X className="h-3.5 w-3.5" strokeWidth={2} aria-hidden="true" />
                 </button>
               )}
             </div>
             <FilterBar />
           </div>
-
-          {!isLoading && items.length > 0 && (
-            <p className="mt-3 text-[11px] text-[var(--color-text-tertiary)]">
-              {t('market.resultCount', { count: String(items.length) })}
-            </p>
-          )}
         </section>
 
-        {isLoading && (
-          <div className="flex flex-col items-center gap-3 py-16" data-testid="market-loading">
-            <div className="h-6 w-6 animate-spin rounded-full border-2 border-[var(--color-brand)] border-t-transparent" />
-            <p className="text-sm text-[var(--color-text-tertiary)]">{t('market.loading')}</p>
+        {!isLoading && items.length > 0 && (
+          <div className="flex items-center gap-3 px-0.5">
+            <p className="flex-shrink-0 text-[11px] font-medium tabular-nums text-[var(--color-text-tertiary)]">
+              {t('market.resultCount', { count: String(items.length) })}
+            </p>
+            <div className="h-px flex-1 bg-[var(--color-border)]/60" />
           </div>
         )}
 
+        {isLoading && <MarketGridSkeleton label={t('market.loading')} />}
+
         {!isLoading && error && (
           <div
             data-testid="market-error"
-            className="flex flex-col items-center gap-3 rounded-2xl border border-dashed border-[var(--color-error)]/40 bg-[var(--color-error-container)]/30 px-6 py-12 text-center"
+            className="flex flex-col items-center gap-3 rounded-xl border border-dashed border-[var(--color-error)]/35 bg-[var(--color-error-container)]/25 px-6 py-14 text-center"
           >
-            <span className="material-symbols-outlined text-[36px] text-[var(--color-error)]">cloud_off</span>
+            <CloudOff className="h-8 w-8 text-[var(--color-error)]" strokeWidth={1.7} aria-hidden="true" />
             <p className="text-sm font-medium text-[var(--color-text-primary)]">{t('market.error.list')}</p>
             <p className="max-w-md break-words text-xs text-[var(--color-text-tertiary)]">{error}</p>
             <button
               type="button"
               onClick={() => void fetchList({ reset: true })}
-              className="mt-1 inline-flex min-h-9 items-center gap-1.5 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface)] px-4 text-sm text-[var(--color-text-primary)] transition-colors hover:border-[var(--color-border-focus)]"
+              className="mt-1 inline-flex min-h-9 items-center gap-1.5 rounded-lg border border-[var(--color-border)] bg-[var(--color-surface)] px-4 text-sm text-[var(--color-text-primary)] transition-colors hover:border-[var(--color-border-focus)] hover:bg-[var(--color-surface-hover)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:scale-[0.98]"
             >
-              <span className="material-symbols-outlined text-[16px]">refresh</span>
+              <RefreshCw className="h-3.5 w-3.5" strokeWidth={2} aria-hidden="true" />
               {t('market.retry')}
             </button>
           </div>
@@ -110,11 +119,13 @@ export function MarketHome({ onRequestInstall }: { onRequestInstall: (id: string
         {!isLoading && !error && items.length === 0 && (
           <div
             data-testid="market-empty"
-            className="rounded-2xl border border-dashed border-[var(--color-border)] bg-[var(--color-surface-container-low)] px-6 py-16 text-center"
+            className="rounded-xl border border-dashed border-[var(--color-border)] bg-[var(--color-surface-container-low)] px-6 py-16 text-center"
           >
-            <span className="material-symbols-outlined mb-2 block text-[40px] text-[var(--color-text-tertiary)]">
-              {hasQuery || hasActiveFilters ? 'search_off' : 'storefront'}
-            </span>
+            {hasQuery || hasActiveFilters ? (
+              <PackageSearch className="mx-auto mb-3 h-9 w-9 text-[var(--color-text-tertiary)]" strokeWidth={1.6} aria-hidden="true" />
+            ) : (
+              <Store className="mx-auto mb-3 h-9 w-9 text-[var(--color-text-tertiary)]" strokeWidth={1.6} aria-hidden="true" />
+            )}
             <p className="text-sm text-[var(--color-text-tertiary)]">
               {hasQuery || hasActiveFilters ? t('market.emptySearch') : t('market.empty')}
             </p>
@@ -126,7 +137,7 @@ export function MarketHome({ onRequestInstall }: { onRequestInstall: (id: string
 
         {!isLoading && items.length > 0 && (
           <>
-            <div className="grid gap-4 sm:grid-cols-2 xl:grid-cols-3" data-testid="market-grid">
+            <div className="grid grid-cols-1 gap-3 md:grid-cols-2 xl:grid-cols-3" data-testid="market-grid">
               {items.map((skill) => (
                 <SkillCard
                   key={skill.id}
@@ -139,13 +150,13 @@ export function MarketHome({ onRequestInstall }: { onRequestInstall: (id: string
             </div>
 
             {nextCursor && (
-              <div className="flex justify-center pb-4">
+              <div className="flex justify-center py-2 pb-5">
                 <button
                   type="button"
                   data-testid="market-load-more"
                   disabled={isLoadingMore}
                   onClick={() => void loadMore()}
-                  className="inline-flex min-h-10 items-center gap-2 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface)] px-5 text-sm text-[var(--color-text-primary)] transition-colors hover:border-[var(--color-border-focus)] disabled:opacity-60"
+                  className="inline-flex min-h-10 items-center gap-2 rounded-lg border border-[var(--color-border)] bg-[var(--color-surface)] px-5 text-sm text-[var(--color-text-primary)] transition-colors hover:border-[var(--color-border-focus)] hover:bg-[var(--color-surface-hover)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:scale-[0.98] disabled:opacity-60"
                 >
                   {isLoadingMore && (
                     <span className="h-3.5 w-3.5 animate-spin rounded-full border border-current border-t-transparent" aria-hidden />
@@ -160,3 +171,32 @@ export function MarketHome({ onRequestInstall }: { onRequestInstall: (id: string
     </div>
   )
 }
+
+function MarketGridSkeleton({ label }: { label: string }) {
+  return (
+    <div className="grid grid-cols-1 gap-3 md:grid-cols-2 xl:grid-cols-3" data-testid="market-loading" aria-label={label}>
+      {Array.from({ length: 6 }, (_, index) => (
+        <div
+          key={index}
+          className="min-h-[212px] animate-pulse rounded-xl border border-[var(--color-border)]/60 bg-[var(--color-surface-container-low)] p-4"
+        >
+          <div className="flex items-start gap-3.5">
+            <div className="h-[46px] w-[46px] rounded-[14px] bg-[var(--color-surface-container-high)]" />
+            <div className="min-w-0 flex-1 pt-0.5">
+              <div className="h-3.5 w-2/3 rounded bg-[var(--color-surface-container-high)]" />
+              <div className="mt-2 h-2.5 w-1/3 rounded bg-[var(--color-surface-container)]" />
+            </div>
+          </div>
+          <div className="mt-4 h-2.5 w-full rounded bg-[var(--color-surface-container-high)]" />
+          <div className="mt-2 h-2.5 w-4/5 rounded bg-[var(--color-surface-container)]" />
+          <div className="mt-4 h-2.5 w-1/2 rounded bg-[var(--color-surface-container)]" />
+          <div className="mt-5 h-px bg-[var(--color-border)]/50" />
+          <div className="mt-3 flex items-center justify-between">
+            <div className="h-6 w-20 rounded-md bg-[var(--color-surface-container-high)]" />
+            <div className="h-6 w-24 rounded bg-[var(--color-surface-container)]" />
+          </div>
+        </div>
+      ))}
+    </div>
+  )
+}

desktop/src/components/market/MarketSkillDetail.tsx

@@ -1,4 +1,5 @@
 import { useCallback, useMemo } from 'react'
+import { ArrowLeft, CircleAlert, Download, KeyRound, RefreshCw, Trash2 } from 'lucide-react'
 import { useTranslation } from '../../i18n'
 import { useMarketStore } from '../../stores/marketStore'
 import { SkillDetailView, type SkillDetailMetaItem } from './SkillDetailView'
@@ -66,7 +67,7 @@ export function MarketSkillDetail({
     if (detail.requiresApiKey) {
       items.push({
         label: t('market.detail.requiresApiKey'),
-        value: <span className="material-symbols-outlined text-[16px] text-[var(--color-warning)]">key</span>,
+        value: <KeyRound className="ml-auto h-4 w-4 text-[var(--color-warning)]" strokeWidth={2} aria-hidden="true" />,
       })
     }
     return items
@@ -76,32 +77,58 @@ export function MarketSkillDetail({
 
   if (isDetailLoading) {
     return (
-      <div className="flex flex-1 flex-col items-center justify-center gap-3 py-20" data-testid="market-detail-loading">
-        <div className="h-6 w-6 animate-spin rounded-full border-2 border-[var(--color-brand)] border-t-transparent" />
-        <p className="text-sm text-[var(--color-text-tertiary)]">{t('market.loading')}</p>
+      <div className="flex min-h-0 flex-1 flex-col overflow-y-auto bg-[var(--color-surface-container-lowest)]" data-testid="market-detail-loading">
+        <div className="mx-auto w-full max-w-[1320px] px-6 py-6 lg:px-8">
+          <button
+            type="button"
+            onClick={backToList}
+            className="inline-flex min-h-8 items-center gap-1.5 rounded-md pr-2 text-sm text-[var(--color-text-secondary)] transition-colors hover:bg-[var(--color-surface-hover)] hover:text-[var(--color-text-primary)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)]"
+          >
+            <ArrowLeft className="h-4 w-4" strokeWidth={2} aria-hidden="true" />
+            {t('market.detail.back')}
+          </button>
+          <div className="mt-5 animate-pulse">
+            <div className="flex items-start gap-5 border-b border-[var(--color-border)]/70 pb-6">
+              <div className="h-16 w-16 flex-shrink-0 rounded-[14px] bg-[var(--color-surface-container-high)]" />
+              <div className="min-w-0 flex-1 pt-1">
+                <div className="h-2.5 w-24 rounded bg-[var(--color-surface-container)]" />
+                <div className="mt-3 h-6 w-64 max-w-full rounded bg-[var(--color-surface-container-high)]" />
+                <div className="mt-4 h-3 w-[min(100%,36rem)] rounded bg-[var(--color-surface-container)]" />
+              </div>
+            </div>
+            <div className="mt-6 grid gap-6 lg:grid-cols-[minmax(0,1fr)_280px]">
+              <div>
+                <div className="h-10 w-52 rounded bg-[var(--color-surface-container)]" />
+                <div className="mt-5 h-72 rounded-xl border border-[var(--color-border)]/60 bg-[var(--color-surface-container-low)]" />
+              </div>
+              <div className="order-first h-72 rounded-xl border border-[var(--color-border)]/60 bg-[var(--color-surface-container-low)] lg:order-none" />
+            </div>
+          </div>
+          <p className="sr-only">{t('market.loading')}</p>
+        </div>
       </div>
     )
   }
 
   if (detailError || !detail) {
     return (
-      <div className="flex flex-1 flex-col items-center justify-center gap-3 py-20 text-center" data-testid="market-detail-error">
-        <span className="material-symbols-outlined text-[36px] text-[var(--color-error)]">error</span>
+      <div className="flex flex-1 flex-col items-center justify-center gap-3 px-6 py-20 text-center" data-testid="market-detail-error">
+        <CircleAlert className="h-9 w-9 text-[var(--color-error)]" strokeWidth={1.7} aria-hidden="true" />
         <p className="text-sm font-medium text-[var(--color-text-primary)]">{t('market.detail.loadError')}</p>
         {detailError && <p className="max-w-md break-words text-xs text-[var(--color-text-tertiary)]">{detailError}</p>}
         <div className="mt-1 flex items-center gap-2">
           <button
             type="button"
             onClick={() => void refreshDetail(selectedId)}
-            className="inline-flex min-h-9 items-center gap-1.5 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface)] px-4 text-sm text-[var(--color-text-primary)] hover:border-[var(--color-border-focus)]"
+            className="inline-flex min-h-9 items-center gap-1.5 rounded-lg border border-[var(--color-border)] bg-[var(--color-surface)] px-4 text-sm text-[var(--color-text-primary)] transition-colors hover:border-[var(--color-border-focus)] hover:bg-[var(--color-surface-hover)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:scale-[0.98]"
           >
-            <span className="material-symbols-outlined text-[16px]">refresh</span>
+            <RefreshCw className="h-3.5 w-3.5" strokeWidth={2} aria-hidden="true" />
             {t('market.retry')}
           </button>
           <button
             type="button"
             onClick={backToList}
-            className="inline-flex min-h-9 items-center gap-1.5 rounded-xl px-4 text-sm text-[var(--color-text-secondary)] hover:text-[var(--color-text-primary)]"
+            className="inline-flex min-h-9 items-center gap-1.5 rounded-lg px-4 text-sm text-[var(--color-text-secondary)] transition-colors hover:bg-[var(--color-surface-hover)] hover:text-[var(--color-text-primary)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:scale-[0.98]"
           >
             {t('market.detail.back')}
           </button>
@@ -125,12 +152,12 @@ export function MarketSkillDetail({
           data-testid="market-install-button"
           disabled={installing}
           onClick={() => onRequestInstall(detail.id)}
-          className="inline-flex min-h-10 items-center gap-1.5 rounded-xl bg-[var(--color-brand)] px-5 text-sm font-medium text-white transition-opacity hover:opacity-90 disabled:opacity-50"
+          className="inline-flex min-h-10 items-center gap-2 rounded-lg bg-[image:var(--gradient-btn-primary)] px-5 text-sm font-semibold text-[var(--color-btn-primary-fg)] shadow-[var(--shadow-button-primary)] transition-[filter,transform] hover:brightness-105 focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:translate-y-px disabled:opacity-50"
         >
           {installing ? (
             <span className="h-3.5 w-3.5 animate-spin rounded-full border border-current border-t-transparent" aria-hidden />
           ) : (
-            <span className="material-symbols-outlined text-[18px]" aria-hidden>download</span>
+            <Download className="h-4 w-4" strokeWidth={2} aria-hidden="true" />
           )}
           {installing ? t('market.install.installing') : t('market.install.action')}
         </button>
@@ -141,12 +168,12 @@ export function MarketSkillDetail({
           data-testid="market-uninstall-button"
           disabled={installing}
           onClick={() => onRequestUninstall(detail.id)}
-          className="inline-flex min-h-10 items-center gap-1.5 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface)] px-5 text-sm text-[var(--color-error)] transition-colors hover:border-[var(--color-error)]/50 disabled:opacity-50"
+          className="inline-flex min-h-10 items-center gap-2 rounded-lg border border-[var(--color-error)]/25 bg-[var(--color-surface)] px-5 text-sm font-medium text-[var(--color-error)] transition-colors hover:border-[var(--color-error)]/50 hover:bg-[var(--color-error-container)]/35 focus-visible:outline-none focus-visible:shadow-[var(--shadow-error-ring)] active:scale-[0.98] disabled:opacity-50"
         >
           {installing ? (
             <span className="h-3.5 w-3.5 animate-spin rounded-full border border-current border-t-transparent" aria-hidden />
           ) : (
-            <span className="material-symbols-outlined text-[18px]" aria-hidden>delete</span>
+            <Trash2 className="h-4 w-4" strokeWidth={2} aria-hidden="true" />
           )}
           {installing ? t('market.uninstall.uninstalling') : t('market.uninstall.action')}
         </button>
@@ -164,9 +191,9 @@ export function MarketSkillDetail({
       {installError && installError.id === detail.id && (
         <div
           data-testid="market-install-error"
-          className="mt-4 flex items-start gap-2 rounded-xl border border-[var(--color-error)]/30 bg-[var(--color-error-container)]/40 px-3.5 py-2.5 text-sm text-[var(--color-text-primary)]"
+          className="mt-4 flex items-start gap-2 rounded-lg border border-[var(--color-error)]/25 bg-[var(--color-error-container)]/35 px-3.5 py-2.5 text-sm text-[var(--color-text-primary)]"
         >
-          <span className="material-symbols-outlined mt-0.5 text-[18px] text-[var(--color-error)]" aria-hidden>error</span>
+          <CircleAlert className="mt-0.5 h-4 w-4 flex-shrink-0 text-[var(--color-error)]" strokeWidth={2} aria-hidden="true" />
           <span className="break-words">
             {installError.kind === 'generic'
               ? t('market.installError.generic', { message: installError.message })

desktop/src/components/market/SecurityBadge.tsx

@@ -1,38 +1,38 @@
+import { BadgeCheck, ShieldAlert, ShieldCheck, ShieldQuestion, type LucideIcon } from 'lucide-react'
 import { useTranslation } from '../../i18n'
 import type { SecurityStatus } from '../../types/market'
 
-const STYLES: Record<SecurityStatus, { icon: string; className: string }> = {
+const STYLES: Record<SecurityStatus, { icon: LucideIcon; className: string }> = {
   verified: {
-    icon: 'verified',
-    className: 'bg-[var(--color-success-container)] text-[var(--color-success)]',
+    icon: BadgeCheck,
+    className: 'border-[var(--color-success)]/20 bg-[var(--color-success-container)] text-[var(--color-success)]',
   },
   benign: {
-    icon: 'gpp_good',
-    className: 'bg-[var(--color-success-container)] text-[var(--color-success)]',
+    icon: ShieldCheck,
+    className: 'border-[var(--color-success)]/20 bg-[var(--color-success-container)] text-[var(--color-success)]',
   },
   unknown: {
-    icon: 'shield_question',
+    icon: ShieldQuestion,
     // text-secondary: tertiary lands at ~3.3-3.9:1 on this container across themes — below AA for 10px text.
-    className: 'bg-[var(--color-surface-container-high)] text-[var(--color-text-secondary)]',
+    className: 'border-[var(--color-border)] bg-[var(--color-surface-container-low)] text-[var(--color-text-secondary)]',
   },
   flagged: {
-    icon: 'gpp_maybe',
-    className: 'bg-[var(--color-error-container)] text-[var(--color-error)]',
+    icon: ShieldAlert,
+    className: 'border-[var(--color-error)]/20 bg-[var(--color-error-container)] text-[var(--color-error)]',
   },
 }
 
 export function SecurityBadge({ status, className = '' }: { status: SecurityStatus; className?: string }) {
   const t = useTranslation()
   const style = STYLES[status]
+  const Icon = style.icon
   return (
     <span
       data-testid={`security-badge-${status}`}
       title={t(`market.securityHint.${status}`)}
-      className={`inline-flex items-center gap-1 rounded-full px-2 py-0.5 text-[10px] font-medium whitespace-nowrap ${style.className} ${className}`}
+      className={`inline-flex items-center gap-1.5 whitespace-nowrap rounded-md border px-2 py-1 text-[11px] font-medium ${style.className} ${className}`}
     >
-      <span className="material-symbols-outlined text-[12px]" aria-hidden>
-        {style.icon}
-      </span>
+      <Icon className="h-3.5 w-3.5" strokeWidth={2} aria-hidden="true" />
       {t(`market.security.${status}`)}
     </span>
   )

desktop/src/components/market/SkillAvatar.tsx

@@ -1,12 +1,21 @@
 import type { NormalizedSkill } from '../../types/market'
 
-/** Deterministic hue from a string so every skill keeps a stable identity color. */
-function hashHue(input: string): number {
+const AVATAR_GRADIENTS = [
+  ['#9A5942', '#6F3827'],
+  ['#4F746D', '#31564F'],
+  ['#6C7651', '#465334'],
+  ['#6A687C', '#464558'],
+  ['#8A633D', '#634421'],
+  ['#647183', '#404C5C'],
+] as const
+
+/** Deterministic palette index so every skill keeps a stable, restrained identity color. */
+function hashIndex(input: string): number {
   let hash = 0
   for (let i = 0; i < input.length; i++) {
     hash = (hash * 31 + input.charCodeAt(i)) | 0
   }
-  return Math.abs(hash) % 360
+  return Math.abs(hash) % AVATAR_GRADIENTS.length
 }
 
 /** First visible character of the name, uppercased (handles CJK and multi-byte chars). */
@@ -16,9 +25,9 @@ function initialOf(name: string): string {
 }
 
 /**
- * Skill icon with a deterministic letter-avatar fallback.
- * Upstream sources rarely provide `iconUrl`, so the fallback carries the
- * visual identity: same skill name → same color + initial, every render.
+ * Skill icon with a deterministic letter-avatar fallback. The palette stays
+ * deliberately muted so a catalog of community skills still reads as one
+ * product rather than a wall of unrelated app icons.
  */
 export function SkillAvatar({
   skill,
@@ -36,11 +45,11 @@ export function SkillAvatar({
         alt=""
         loading="lazy"
         style={{ width: size, height: size }}
-        className={`flex-shrink-0 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface-container)] object-cover ${className}`}
+        className={`flex-shrink-0 rounded-[14px] border border-[var(--color-border)] bg-[var(--color-surface-container)] object-cover shadow-[0_1px_2px_rgba(27,28,26,0.08)] ${className}`}
       />
     )
   }
-  const hue = hashHue(skill.name)
+  const [from, to] = AVATAR_GRADIENTS[hashIndex(skill.name)]!
   return (
     <span
       aria-hidden
@@ -49,9 +58,10 @@ export function SkillAvatar({
         width: size,
         height: size,
         fontSize: Math.round(size * 0.45),
-        background: `linear-gradient(135deg, hsl(${hue} 68% 52%), hsl(${(hue + 28) % 360} 64% 38%))`,
+        background: `linear-gradient(145deg, ${from}, ${to})`,
+        boxShadow: 'inset 0 1px 0 rgba(255,255,255,0.18), 0 3px 10px rgba(27,28,26,0.12)',
       }}
-      className={`inline-flex flex-shrink-0 select-none items-center justify-center rounded-xl font-semibold text-white ${className}`}
+      className={`inline-flex flex-shrink-0 select-none items-center justify-center rounded-[14px] font-semibold tracking-[-0.04em] text-white ${className}`}
     >
       {initialOf(skill.name)}
     </span>

desktop/src/components/market/SkillCard.test.tsx

@@ -65,10 +65,22 @@ describe('SkillCard', () => {
     expect(onInstall).toHaveBeenCalledWith('clawhub:demo')
     expect(onOpen).not.toHaveBeenCalled()
 
-    fireEvent.click(screen.getByText('Demo Skill'))
+    fireEvent.click(screen.getByRole('button', { name: 'Demo Skill' }))
     expect(onOpen).toHaveBeenCalledWith('clawhub:demo')
   })
 
+  it('uses separate semantic actions for opening and installing', () => {
+    render(<SkillCard skill={makeSkill()} onOpen={vi.fn()} onInstall={vi.fn()} />)
+
+    const card = screen.getByRole('article')
+    const openButton = screen.getByRole('button', { name: 'Demo Skill' })
+    const installButton = screen.getByRole('button', { name: 'Install' })
+
+    expect(card).toContainElement(openButton)
+    expect(card).toContainElement(installButton)
+    expect(openButton).not.toContainElement(installButton)
+  })
+
   it('disables the quick-install button while installing', () => {
     render(<SkillCard skill={makeSkill()} onOpen={vi.fn()} onInstall={vi.fn()} installing />)
 

desktop/src/components/market/SkillCard.tsx

@@ -1,3 +1,4 @@
+import { ArrowUpRight, Download, Star } from 'lucide-react'
 import { useTranslation } from '../../i18n'
 import type { NormalizedSkill } from '../../types/market'
 import { InstallStateBadge } from './InstallStateBadge'
@@ -28,54 +29,64 @@ export function SkillCard({
   const showInstallButton = Boolean(onInstall) && skill.installState === 'installable'
 
   return (
-    <div
+    <article
       data-testid={`market-skill-card-${skill.id}`}
-      className="group relative flex min-w-0 cursor-pointer flex-col rounded-2xl border border-[var(--color-border)] bg-[var(--color-surface)] p-4 transition-all duration-200 hover:-translate-y-0.5 hover:border-[var(--color-border-focus)] hover:shadow-[var(--shadow-dropdown)]"
-      style={{ contentVisibility: 'auto', containIntrinsicSize: '196px' }}
-      role="button"
-      tabIndex={0}
-      onClick={() => onOpen(skill.id)}
-      onKeyDown={(e) => {
-        if (e.key === 'Enter' || e.key === ' ') {
-          e.preventDefault()
-          onOpen(skill.id)
-        }
-      }}
+      className="group relative isolate flex min-h-[212px] min-w-0 flex-col overflow-hidden rounded-xl border border-[var(--color-border)]/70 bg-[var(--color-surface-container-low)] p-4 transition-[background-color,border-color,box-shadow] duration-200 hover:border-[var(--color-border-focus)] hover:bg-[var(--color-surface)] hover:shadow-[var(--shadow-dropdown)]"
+      style={{ contentVisibility: 'auto', containIntrinsicSize: '212px' }}
     >
-      <div className="flex items-start gap-3">
-        <SkillAvatar skill={skill} size={40} />
+      <button
+        type="button"
+        aria-label={skill.name}
+        onClick={() => onOpen(skill.id)}
+        className="absolute inset-0 z-0 rounded-xl focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)]"
+      />
+
+      <div className="pointer-events-none absolute inset-x-5 top-0 z-10 h-px bg-gradient-to-r from-transparent via-[var(--color-brand)]/55 to-transparent opacity-0 transition-opacity duration-200 group-hover:opacity-100" />
+
+      <div className="pointer-events-none relative z-10 flex items-start gap-3.5">
+        <SkillAvatar skill={skill} size={46} />
         <div className="min-w-0 flex-1">
-          <div className="flex items-center gap-2">
-            <span className="truncate text-sm font-semibold text-[var(--color-text-primary)]">{skill.name}</span>
+          <div className="flex items-start gap-2">
+            <h3 className="min-w-0 flex-1 truncate text-[15px] font-semibold leading-5 tracking-[-0.01em] text-[var(--color-text-primary)]">
+              {skill.name}
+            </h3>
             {skill.version && (
-              <span className="flex-shrink-0 rounded-full bg-[var(--color-surface-container-high)] px-1.5 py-0.5 text-[10px] font-medium text-[var(--color-text-tertiary)]">
+              <span className="flex-shrink-0 font-mono text-[10px] leading-5 text-[var(--color-text-tertiary)]">
                 v{skill.version}
               </span>
             )}
           </div>
           <div className="mt-1 flex min-w-0 items-center gap-1.5 text-[11px] text-[var(--color-text-tertiary)]">
-            <span className="flex-shrink-0 rounded-md bg-[var(--color-surface-container)] px-1.5 py-px font-medium text-[var(--color-text-secondary)]">
+            <span className="flex-shrink-0 font-semibold uppercase tracking-[0.08em] text-[var(--color-text-secondary)]">
               {t(`market.source.${skill.source}`)}
             </span>
             {skill.author.handle && (
-              <span className="truncate">{t('market.card.by', { author: skill.author.displayName || skill.author.handle })}</span>
+              <>
+                <span aria-hidden>·</span>
+                <span className="truncate">{t('market.card.by', { author: skill.author.displayName || skill.author.handle })}</span>
+              </>
             )}
           </div>
         </div>
+        <ArrowUpRight
+          className="mt-0.5 h-4 w-4 flex-shrink-0 text-[var(--color-text-tertiary)] opacity-0 transition-[opacity,transform] duration-200 group-hover:translate-x-0.5 group-hover:-translate-y-0.5 group-hover:opacity-100"
+          strokeWidth={1.8}
+          aria-hidden="true"
+        />
       </div>
 
-      <p className="mt-2.5 line-clamp-2 min-h-[2.5rem] text-xs leading-5 text-[var(--color-text-secondary)] break-words">
+      <p className="pointer-events-none relative z-10 mt-3 line-clamp-2 min-h-[2.75rem] text-[12px] leading-[1.375rem] text-[var(--color-text-secondary)] break-words">
         {skill.summary || t('market.detail.noDescription')}
       </p>
 
       {skill.tags.length > 0 && (
-        <div className="mt-2 flex flex-wrap items-center gap-1">
+        <div className="pointer-events-none relative z-10 mt-2.5 flex min-h-4 flex-wrap items-center gap-x-2.5 gap-y-1">
           {skill.tags.slice(0, MAX_VISIBLE_TAGS).map((tag) => (
             <span
               key={tag}
-              className="rounded-full bg-[var(--color-surface-container)] px-2 py-0.5 text-[10px] text-[var(--color-text-secondary)]"
+              className="text-[10px] text-[var(--color-text-tertiary)]"
             >
-              {tag}
+              #{tag}
             </span>
           ))}
           {extraTags > 0 && (
@@ -86,7 +97,7 @@ export function SkillCard({
         </div>
       )}
 
-      <div className="mt-auto flex flex-wrap items-center justify-between gap-x-2 gap-y-1.5 border-t border-[var(--color-border)]/60 pt-2.5">
+      <footer className="pointer-events-none relative z-10 mt-auto flex flex-wrap items-center justify-between gap-x-2 gap-y-2 border-t border-[var(--color-border)]/60 pt-3">
         <div className="flex min-w-0 flex-wrap items-center gap-1.5">
           <SecurityBadge status={skill.securityStatus} />
           {/* The quick-install button already communicates "installable" — skip the badge when the button renders. */}
@@ -94,14 +105,14 @@ export function SkillCard({
             <InstallStateBadge state={skill.installState} />
           )}
         </div>
-        <div className="ml-auto flex flex-shrink-0 items-center gap-2 text-[11px] tabular-nums text-[var(--color-text-tertiary)]">
-          <span className="inline-flex items-center gap-0.5" title={t('market.detail.downloads')}>
-            <span className="material-symbols-outlined text-[13px]" aria-hidden>download</span>
+        <div className="ml-auto flex flex-shrink-0 items-center gap-2.5 text-[11px] tabular-nums text-[var(--color-text-tertiary)]">
+          <span className="inline-flex items-center gap-1" title={t('market.detail.downloads')}>
+            <Download className="h-3.5 w-3.5" strokeWidth={1.8} aria-hidden="true" />
             {formatCount(skill.stats.downloads)}
           </span>
           {typeof skill.stats.stars === 'number' && skill.stats.stars > 0 && (
-            <span className="inline-flex items-center gap-0.5" title={t('market.detail.stars')}>
-              <span className="material-symbols-outlined text-[13px]" aria-hidden>star</span>
+            <span className="inline-flex items-center gap-1" title={t('market.detail.stars')}>
+              <Star className="h-3.5 w-3.5" strokeWidth={1.8} aria-hidden="true" />
               {formatCount(skill.stats.stars)}
             </span>
           )}
@@ -109,22 +120,19 @@ export function SkillCard({
             <button
               type="button"
               disabled={installing}
-              onClick={(e) => {
-                e.stopPropagation()
-                onInstall?.(skill.id)
-              }}
-              className="inline-flex min-h-7 cursor-pointer items-center gap-1 rounded-lg bg-[var(--color-brand)] px-2.5 text-[11px] font-medium text-[var(--color-on-primary)] transition-opacity hover:opacity-90 disabled:opacity-50"
+              onClick={() => onInstall?.(skill.id)}
+              className="pointer-events-auto relative z-20 inline-flex min-h-8 cursor-pointer items-center gap-1.5 rounded-md border border-[var(--color-brand)]/25 bg-[var(--color-surface)] px-2.5 text-[11px] font-semibold text-[var(--color-brand)] transition-colors hover:border-[var(--color-brand)]/45 hover:bg-[var(--color-primary-fixed)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:scale-[0.98] disabled:opacity-50"
             >
               {installing ? (
                 <span className="h-3 w-3 animate-spin rounded-full border border-current border-t-transparent" aria-hidden />
               ) : (
-                <span className="material-symbols-outlined text-[13px]" aria-hidden>download</span>
+                <Download className="h-3.5 w-3.5" strokeWidth={2} aria-hidden="true" />
               )}
               {installing ? t('market.install.installing') : t('market.install.action')}
             </button>
           )}
         </div>
-      </div>
-    </div>
+      </footer>
+    </article>
   )
 }

desktop/src/components/market/SkillDetailView.test.tsx

@@ -1,5 +1,5 @@
 import { describe, it, expect, vi, beforeEach } from 'vitest'
-import { render, screen, fireEvent } from '@testing-library/react'
+import { render, screen, fireEvent, within } from '@testing-library/react'
 import '@testing-library/jest-dom'
 
 vi.mock('../markdown/MarkdownRenderer', () => ({
@@ -113,6 +113,9 @@ describe('SkillDetailView', () => {
   it('renders custom actions in the decision area', () => {
     renderView({ actions: <button type="button">Install now</button> })
 
-    expect(screen.getByText('Install now')).toBeInTheDocument()
+    const decisionSidebar = screen.getByTestId('skill-detail-sidebar')
+    expect(within(decisionSidebar).getByText('Install now')).toBeInTheDocument()
+    expect(within(decisionSidebar).getByText('Author')).toBeInTheDocument()
+    expect(within(decisionSidebar).getByText('Alice')).toBeInTheDocument()
   })
 })

desktop/src/components/market/SkillDetailView.tsx

@@ -1,4 +1,5 @@
 import { useState, type ReactNode } from 'react'
+import { ArrowLeft, CircleSlash2, FileText, Folder } from 'lucide-react'
 import { useTranslation } from '../../i18n'
 import type {
   InstallState,
@@ -10,6 +11,7 @@ import { InstallStateBadge } from './InstallStateBadge'
 import { SecurityBadge } from './SecurityBadge'
 import { FilePreview, type PreviewFile, type PreviewFileContent } from './FilePreview'
 import { MarkdownRenderer } from '../markdown/MarkdownRenderer'
+import { SkillAvatar } from './SkillAvatar'
 
 export type SkillDetailMetaItem = {
   label: string
@@ -48,79 +50,70 @@ export function SkillDetailView(props: SkillDetailViewProps) {
   const [tab, setTab] = useState<'overview' | 'files'>('overview')
 
   return (
-    <div className="flex min-h-0 flex-1 flex-col overflow-y-auto" data-testid="skill-detail-view">
-      <div className="mx-auto flex w-full max-w-5xl flex-col gap-5 px-6 py-6">
+    <div
+      className="flex min-h-0 flex-1 flex-col overflow-y-auto bg-[var(--color-surface-container-lowest)]"
+      data-testid="skill-detail-view"
+    >
+      <div className="mx-auto w-full max-w-[1320px] px-6 py-6 lg:px-8">
         <button
           type="button"
           onClick={props.onBack}
-          className="inline-flex w-fit items-center gap-1 text-sm text-[var(--color-text-secondary)] transition-colors hover:text-[var(--color-text-primary)]"
+          className="inline-flex min-h-8 w-fit items-center gap-1.5 rounded-md pr-2 text-sm text-[var(--color-text-secondary)] transition-colors hover:bg-[var(--color-surface-hover)] hover:text-[var(--color-text-primary)] focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] active:scale-[0.98]"
         >
-          <span className="material-symbols-outlined text-[18px]">arrow_back</span>
+          <ArrowLeft className="h-4 w-4" strokeWidth={2} aria-hidden="true" />
           {props.backLabel}
         </button>
 
-        {/* Install decision area */}
-        <section className="rounded-2xl border border-[var(--color-border)] bg-[var(--color-surface-container-low)] px-5 py-5">
-          <div className="flex flex-wrap items-start justify-between gap-4">
-            <div className="flex min-w-0 items-start gap-3.5">
-              {props.iconUrl ? (
-                <img
-                  src={props.iconUrl}
-                  alt=""
-                  className="h-12 w-12 flex-shrink-0 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface-container)] object-cover"
-                />
-              ) : (
-                <span className="inline-flex h-12 w-12 flex-shrink-0 items-center justify-center rounded-xl bg-[var(--color-surface-container-high)] text-[var(--color-text-tertiary)]">
-                  <span className="material-symbols-outlined text-[24px]">auto_awesome</span>
-                </span>
-              )}
-              <div className="min-w-0">
-                <div className="flex flex-wrap items-center gap-2">
-                  <h2 className="break-all text-xl font-semibold text-[var(--color-text-primary)]">{props.name}</h2>
-                  {props.version && (
-                    <span className="rounded-full bg-[var(--color-surface-container-high)] px-2 py-0.5 text-[11px] font-medium text-[var(--color-text-tertiary)]">
-                      v{props.version}
-                    </span>
-                  )}
-                </div>
-                <div className="mt-1.5 flex flex-wrap items-center gap-1.5">
-                  <span className="rounded-full border border-[var(--color-border)] px-2 py-0.5 text-[10px] font-medium text-[var(--color-text-tertiary)]">
-                    {props.sourceLabel}
-                  </span>
-                  {props.securityStatus && <SecurityBadge status={props.securityStatus} />}
-                  {props.installState && <InstallStateBadge state={props.installState} />}
-                </div>
-                {props.summary && (
-                  <p className="mt-2 max-w-2xl text-sm leading-6 text-[var(--color-text-secondary)] break-words">
-                    {props.summary}
-                  </p>
+        <header className="mt-5 border-b border-[var(--color-border)]/70 pb-6">
+          <div className="flex min-w-0 items-start gap-4 sm:gap-5">
+            <SkillAvatar skill={{ name: props.name, iconUrl: props.iconUrl }} size={64} />
+            <div className="min-w-0 flex-1 pt-0.5">
+              <div className="flex flex-wrap items-center gap-x-2.5 gap-y-1 text-[10px] font-semibold uppercase tracking-[0.1em] text-[var(--color-text-tertiary)]">
+                <span>{props.sourceLabel}</span>
+                {props.version && (
+                  <>
+                    <span aria-hidden>·</span>
+                    <span className="font-mono font-normal normal-case tracking-normal">v{props.version}</span>
+                  </>
                 )}
               </div>
+              <h1 className="mt-1.5 break-words text-2xl font-semibold leading-8 tracking-[-0.03em] text-[var(--color-text-primary)] sm:text-[28px]">
+                {props.name}
+              </h1>
+              <div className="mt-3 flex flex-wrap items-center gap-2">
+                {props.securityStatus && <SecurityBadge status={props.securityStatus} />}
+                {props.installState && <InstallStateBadge state={props.installState} />}
+              </div>
+              {props.summary && (
+                <p className="mt-3 max-w-3xl text-[13px] leading-6 text-[var(--color-text-secondary)] break-words sm:text-sm">
+                  {props.summary}
+                </p>
+              )}
             </div>
-            {props.actions && <div className="flex flex-shrink-0 items-center gap-2">{props.actions}</div>}
           </div>
 
           {props.installState === 'not-installable' && props.notInstallableReason && (
             <div
               data-testid="market-not-installable-reason"
-              className="mt-4 flex items-start gap-2 rounded-xl border border-[var(--color-error)]/30 bg-[var(--color-error-container)]/40 px-3.5 py-2.5 text-sm text-[var(--color-text-primary)]"
+              className="mt-5 flex items-start gap-2 rounded-lg border border-[var(--color-error)]/25 bg-[var(--color-error-container)]/35 px-3.5 py-2.5 text-sm text-[var(--color-text-primary)]"
             >
-              <span className="material-symbols-outlined mt-0.5 text-[18px] text-[var(--color-error)]" aria-hidden>
-                block
-              </span>
+              <CircleSlash2 className="mt-0.5 h-4 w-4 flex-shrink-0 text-[var(--color-error)]" strokeWidth={2} aria-hidden="true" />
               <span>{t(`market.reason.${props.notInstallableReason}`)}</span>
             </div>
           )}
 
           {props.securityReports && props.securityReports.length > 0 && (
-            <div className="mt-4 flex flex-wrap items-center gap-2" data-testid="market-security-reports">
-              <span className="text-[11px] font-medium uppercase tracking-wide text-[var(--color-text-tertiary)]">
+            <div
+              className="mt-5 flex flex-wrap items-center gap-x-2.5 gap-y-2 border-t border-[var(--color-border)]/60 pt-4"
+              data-testid="market-security-reports"
+            >
+              <span className="mr-1 text-[11px] font-semibold text-[var(--color-text-tertiary)]">
                 {t('market.detail.securityReport')}
               </span>
               {props.securityReports.map((report) => (
                 <span
                   key={report.vendor}
-                  className="inline-flex items-center gap-1.5 rounded-full border border-[var(--color-border)] bg-[var(--color-surface)] px-2.5 py-1 text-[11px] text-[var(--color-text-secondary)]"
+                  className="inline-flex items-center gap-1.5 rounded-md bg-[var(--color-surface-container-low)] px-2.5 py-1.5 text-[11px] text-[var(--color-text-secondary)]"
                 >
                   <span className="font-medium text-[var(--color-text-primary)]">{report.vendor}</span>
                   {report.statusText}
@@ -141,61 +134,104 @@ export function SkillDetailView(props: SkillDetailViewProps) {
           )}
 
           {props.banner}
-        </section>
+        </header>
 
-        {/* Meta grid */}
-        {props.meta.length > 0 && (
-          <section className="grid grid-cols-2 gap-3 sm:grid-cols-3 lg:grid-cols-4">
-            {props.meta.map((item) => (
-              <div
-                key={item.label}
-                className="min-w-0 rounded-xl border border-[var(--color-border)] bg-[var(--color-surface)] px-3 py-2.5"
-              >
-                <div className="text-[10px] uppercase tracking-[0.12em] text-[var(--color-text-tertiary)]">{item.label}</div>
-                <div className="mt-1 truncate text-sm font-medium text-[var(--color-text-primary)]">{item.value}</div>
-              </div>
-            ))}
-          </section>
-        )}
-
-        {/* Tabs */}
-        <div className="flex items-center gap-1 border-b border-[var(--color-border)]">
-          {(['overview', 'files'] as const).map((key) => (
-            <button
-              key={key}
-              type="button"
-              data-testid={`skill-detail-tab-${key}`}
-              onClick={() => setTab(key)}
-              className={`relative -mb-px inline-flex min-h-10 items-center gap-1.5 border-b-2 px-3.5 text-sm transition-colors ${
-                tab === key
-                  ? 'border-[var(--color-brand)] font-medium text-[var(--color-text-primary)]'
-                  : 'border-transparent text-[var(--color-text-tertiary)] hover:text-[var(--color-text-secondary)]'
-              }`}
+        <div className="mt-6 grid gap-6 lg:grid-cols-[minmax(0,1fr)_280px] lg:items-start">
+          <main className="min-w-0">
+            <div
+              role="tablist"
+              aria-label={props.name}
+              className="flex items-center gap-1 border-b border-[var(--color-border)]"
             >
-              <span className="material-symbols-outlined text-[16px]" aria-hidden>
-                {key === 'overview' ? 'article' : 'folder'}
-              </span>
-              {t(`market.detail.${key}`)}
-              {key === 'files' && (
-                <span className="rounded-full bg-[var(--color-surface-container-high)] px-1.5 text-[10px] text-[var(--color-text-tertiary)]">
-                  {props.files.length}
-                </span>
-              )}
-            </button>
-          ))}
-        </div>
+              {(['overview', 'files'] as const).map((key) => {
+                const active = tab === key
+                const Icon = key === 'overview' ? FileText : Folder
+                return (
+                  <button
+                    key={key}
+                    id={`skill-detail-tab-${key}-trigger`}
+                    type="button"
+                    role="tab"
+                    aria-selected={active}
+                    aria-controls={`skill-detail-${key}-panel`}
+                    data-testid={`skill-detail-tab-${key}`}
+                    onClick={() => setTab(key)}
+                    className={`relative -mb-px inline-flex min-h-10 items-center gap-1.5 border-b-2 px-3.5 text-sm transition-colors focus-visible:outline-none focus-visible:shadow-[var(--shadow-focus-ring)] ${
+                      active
+                        ? 'border-[var(--color-brand)] font-medium text-[var(--color-text-primary)]'
+                        : 'border-transparent text-[var(--color-text-tertiary)] hover:text-[var(--color-text-secondary)]'
+                    }`}
+                  >
+                    <Icon className="h-4 w-4" strokeWidth={1.9} aria-hidden="true" />
+                    {t(`market.detail.${key}`)}
+                    {key === 'files' && (
+                      <span className="rounded-md bg-[var(--color-surface-container-high)] px-1.5 py-0.5 text-[10px] leading-4 text-[var(--color-text-tertiary)]">
+                        {props.files.length}
+                      </span>
+                    )}
+                  </button>
+                )
+              })}
+            </div>
 
-        {tab === 'overview' && (
-          <section className="rounded-2xl border border-[var(--color-border)] bg-[var(--color-surface)] px-6 py-5" data-testid="skill-detail-overview">
-            {props.description.trim() ? (
-              <MarkdownRenderer content={props.description} variant="document" className="mx-auto max-w-[72ch]" />
-            ) : (
-              <p className="py-6 text-center text-sm text-[var(--color-text-tertiary)]">{t('market.detail.noDescription')}</p>
+            {tab === 'overview' && (
+              <section
+                id="skill-detail-overview-panel"
+                role="tabpanel"
+                aria-labelledby="skill-detail-tab-overview-trigger"
+                className="mt-5 rounded-xl border border-[var(--color-border)]/70 bg-[var(--color-surface)] px-6 py-6 sm:px-8 sm:py-7"
+                data-testid="skill-detail-overview"
+              >
+                {props.description.trim() ? (
+                  <MarkdownRenderer content={props.description} variant="document" className="mx-auto max-w-[72ch]" />
+                ) : (
+                  <p className="py-6 text-center text-sm text-[var(--color-text-tertiary)]">{t('market.detail.noDescription')}</p>
+                )}
+              </section>
             )}
-          </section>
-        )}
 
-        {tab === 'files' && <FilePreview files={props.files} loadFile={props.loadFile} />}
+            {tab === 'files' && (
+              <section
+                id="skill-detail-files-panel"
+                role="tabpanel"
+                aria-labelledby="skill-detail-tab-files-trigger"
+                className="mt-5"
+              >
+                <FilePreview files={props.files} loadFile={props.loadFile} />
+              </section>
+            )}
+          </main>
+
+          <aside
+            data-testid="skill-detail-sidebar"
+            className="order-first min-w-0 lg:order-none lg:sticky lg:top-5"
+          >
+            <div className="overflow-hidden rounded-xl border border-[var(--color-border)] bg-[var(--color-surface-container-low)] shadow-[0_1px_2px_rgba(27,28,26,0.05)]">
+              {props.actions && (
+                <div
+                  className={`p-3 [&>button]:w-full [&>button]:justify-center ${props.meta.length > 0 ? 'border-b border-[var(--color-border)]' : ''}`}
+                >
+                  {props.actions}
+                </div>
+              )}
+              {props.meta.length > 0 && (
+                <dl>
+                  {props.meta.map((item) => (
+                    <div
+                      key={item.label}
+                      className="flex min-w-0 items-start justify-between gap-4 border-b border-[var(--color-border)]/65 px-4 py-3 last:border-b-0"
+                    >
+                      <dt className="text-[11px] leading-5 text-[var(--color-text-tertiary)]">{item.label}</dt>
+                      <dd className="max-w-[62%] break-words text-right text-[12px] font-medium leading-5 text-[var(--color-text-primary)]">
+                        {item.value}
+                      </dd>
+                    </div>
+                  ))}
+                </dl>
+              )}
+            </div>
+          </aside>
+        </div>
       </div>
     </div>
   )

desktop/src/components/market/SourceStatusBar.tsx

@@ -27,7 +27,10 @@ export function SourceStatusBar({
 }) {
   const t = useTranslation()
   return (
-    <div className={`flex flex-wrap items-center gap-2 ${className}`} data-testid="market-source-status">
+    <div
+      className={`flex flex-wrap items-center gap-1 rounded-lg bg-[var(--color-surface-container-low)] p-1 ${className}`}
+      data-testid="market-source-status"
+    >
       {MARKET_SOURCES.map((source) => {
         const info = sources[source]
         if (!info) return null
@@ -40,11 +43,11 @@ export function SourceStatusBar({
             key={source}
             data-testid={`market-source-status-${source}`}
             title={info.error || undefined}
-            className="inline-flex items-center gap-1.5 rounded-full border border-[var(--color-border)] bg-[var(--color-surface)] px-2.5 py-1 text-[11px] text-[var(--color-text-secondary)]"
+            className="inline-flex min-h-7 items-center gap-1.5 rounded-md px-2 text-[11px] text-[var(--color-text-secondary)]"
           >
-            <span className={`h-2 w-2 rounded-full border border-[var(--color-border)] ${DOT_CLASSES[info.status]}`} aria-hidden />
+            <span className={`h-1.5 w-1.5 rounded-full ${DOT_CLASSES[info.status]}`} aria-hidden />
             <span className="font-medium text-[var(--color-text-primary)]">{t(`market.source.${source}`)}</span>
-            <span>{statusLabel}</span>
+            <span className="text-[var(--color-text-tertiary)]">{statusLabel}</span>
           </span>
         )
       })}