refactor(a11y): 44×44 touch targets + normalize accent-bg alpha

ordinis-admin-ui/src/components/layout/Sidebar.tsx

@@ -317,7 +317,8 @@ function SidebarFooter({
           <button
             type="button"
             onClick={() => i18n.changeLanguage(next)}
-            className="h-7 px-2.5 rounded-md border border-line bg-surface text-cap text-ink-2 hover:bg-surface-2 hover:text-ink transition-colors"
+            // h-11 + min-w-11 — DESIGN.md §13 touch target enforcement.
+            className="h-11 min-w-11 px-2.5 rounded-md border border-line bg-surface text-cap text-ink-2 hover:bg-surface-2 hover:text-ink transition-colors inline-flex items-center justify-center"
             aria-label={`Language: ${cur.toUpperCase()}, click to switch`}
           >
             {cur.toUpperCase()}
@@ -398,7 +399,8 @@ function AuthedUserBlock({
           onClick={() => auth.signoutRedirect().catch(() => auth.removeUser())}
           title={t('auth.logout', { defaultValue: 'Logout' })}
           aria-label={t('auth.logout', { defaultValue: 'Logout' })}
-          className="size-7 rounded-md text-mute hover:text-ink hover:bg-surface-2 inline-flex items-center justify-center transition-colors shrink-0"
+          // size-11 = 44×44 WCAG AAA per DESIGN.md §13.
+          className="size-11 rounded-md text-mute hover:text-ink hover:bg-surface-2 inline-flex items-center justify-center transition-colors shrink-0"
         >
           <span aria-hidden>⎋</span>
         </button>

ordinis-admin-ui/src/components/layout/ThemeSwitch.tsx

@@ -27,7 +27,9 @@ export function ThemeSwitch() {
     <div
       role="radiogroup"
       aria-label={t('theme.label')}
-      className="inline-flex items-center rounded-md border border-line bg-surface h-7 overflow-hidden"
+      // h-11 = 44px WCAG AAA touch target per DESIGN.md §13.
+      // Segmented control: 3 buttons × w-11 = 132px total width.
+      className="inline-flex items-center rounded-md border border-line bg-surface h-11 overflow-hidden"
     >
       {items.map((item) => {
         const Icon = item.icon
@@ -42,7 +44,8 @@ export function ThemeSwitch() {
             title={item.label}
             onClick={() => setPreference(item.id)}
             className={cn(
-              'inline-flex h-full w-7 items-center justify-center transition-colors',
+              // w-11 paired с parent h-11 → 44×44 per button.
+              'inline-flex h-full w-11 items-center justify-center transition-colors',
               active
                 ? 'bg-accent text-on-accent'
                 : 'text-mute hover:text-ink hover:bg-surface-2',

ordinis-admin-ui/src/components/layout/TopBar.tsx

@@ -29,7 +29,9 @@ export function TopBar({ onMenuClick }: { onMenuClick?: () => void }) {
           type="button"
           aria-label={t('nav.menu', { defaultValue: 'Меню' })}
           onClick={onMenuClick}
-          className="lg:hidden -ml-1 p-1.5 rounded-sm text-ink-2 hover:text-ink hover:bg-surface-2 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring transition-colors"
+          // size-11 = 44×44 touch target per DESIGN.md §13.
+          // Icon stays 20px; padding wrapper provides hit area.
+          className="lg:hidden -ml-1 size-11 inline-flex items-center justify-center rounded-sm text-ink-2 hover:text-ink hover:bg-surface-2 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring transition-colors"
         >
           <Menu size={20} strokeWidth={1.75} />
         </button>
@@ -153,7 +155,9 @@ function NotificationsBell() {
         title={t('topbar.notifications', { defaultValue: 'Уведомления' })}
         aria-label={t('topbar.notifications', { defaultValue: 'Уведомления' })}
         onClick={() => setDrawerOpen(true)}
-        className="relative size-7 rounded-md text-ink-2 hover:text-ink hover:bg-surface-2 inline-flex items-center justify-center transition-colors"
+        // size-11 = 44×44 WCAG AAA touch target per DESIGN.md §13.
+        // Bell icon stays size=14; wrapper provides hit area.
+        className="relative size-11 rounded-md text-ink-2 hover:text-ink hover:bg-surface-2 inline-flex items-center justify-center transition-colors"
       >
         <Bell size={14} strokeWidth={1.75} />
         {totalUnread > 0 && (