Task 15: Accessibility audit complete

- Sidebar: Replace <aside role="navigation"> with <nav> to avoid conflicting roles
- Sidebar search: Add combobox role, aria-expanded, aria-controls, aria-autocomplete
- Search results: Add listbox/option roles, group labels for screen reader navigation
- PMRInterface: Remove redundant role="main", fix aria-label to use CV-friendly labels
- Mobile search: Add aria-label and type="search" for proper semantics
- Breadcrumb: Add aria-current="page" to current item, aria-hidden on separators
- Clinical alert: Add aria-label="Acknowledge clinical alert" on button per spec
- Patient banner: Change focus:ring to focus-visible:ring on action buttons
- Patient banner: Add role="img" to StatusDot for aria-label accessibility
- Login screen: Change role="status" to role="dialog" with aria-modal
- Login screen: Add loginButtonRef with auto-focus when typing completes
- Login screen: Add focus-visible ring style to Log In button
- Medications tabs: Add id="tab-{id}" to tab buttons, fix aria-labelledby on panels
- Consultations: Wrap entries in <article> per semantic HTML spec
- Problems: Change TrafficLight dot from role="img" to aria-hidden (text label handles it)
- App: Add sr-only live region announcing "Patient Record for Charlwood, Andrew" on PMR entry
- Skip button: Add focus-visible ring for keyboard users

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/App.tsx

@@ -18,7 +18,7 @@ function SkipButton({ onSkip }: { onSkip: () => void }) {
     <button
       onClick={onSkip}
       aria-label="Skip intro animation"
-      className="fixed bottom-6 left-1/2 -translate-x-1/2 z-[100] px-4 py-1.5 text-xs tracking-widest uppercase font-mono border rounded transition-all duration-700 cursor-pointer select-none"
+      className="fixed bottom-6 left-1/2 -translate-x-1/2 z-[100] px-4 py-1.5 text-xs tracking-widest uppercase font-mono border rounded transition-all duration-700 cursor-pointer select-none focus:outline-none focus-visible:ring-2 focus-visible:ring-white/40"
       style={{
         color: '#555',
         borderColor: '#333',
@@ -51,6 +51,13 @@ function App() {
   return (
     <AccessibilityProvider>
       <div className="min-h-screen bg-black">
+        {/* Screen reader announcement for PMR phase */}
+        {phase === 'pmr' && (
+          <div className="sr-only" role="status" aria-live="polite" aria-atomic="true">
+            Patient Record for Charlwood, Andrew. Summary view.
+          </div>
+        )}
+
         {phase === 'boot' && (
           <BootSequence
             onComplete={() => setPhase('ecg')}

src/components/Breadcrumb.tsx

@@ -56,7 +56,7 @@ export function Breadcrumb({
           </button>
         </li>
 
-        <li>
+        <li aria-hidden="true">
           <ChevronRight size={14} className="text-gray-300" />
         </li>
 
@@ -71,7 +71,7 @@ export function Breadcrumb({
               {viewLabels[currentView]}
             </button>
           ) : (
-            <span className="text-[13px] font-ui font-normal text-gray-600">
+            <span className="text-[13px] font-ui font-normal text-gray-600" aria-current="page">
               {viewLabels[currentView]}
             </span>
           )}
@@ -80,11 +80,11 @@ export function Breadcrumb({
         {/* Expanded item (if any) */}
         {expandedItem && (
           <>
-            <li>
+            <li aria-hidden="true">
               <ChevronRight size={14} className="text-gray-300" />
             </li>
             <li>
-              <span className="text-[13px] font-ui font-normal text-gray-600">
+              <span className="text-[13px] font-ui font-normal text-gray-600" aria-current="page">
                 {expandedItem.name}
               </span>
             </li>

src/components/ClinicalSidebar.tsx

@@ -195,8 +195,7 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
   // ── Tablet: 56px icon-only sidebar ──
   if (isTablet) {
     return (
-      <aside
+      <nav
-        role="navigation"
         aria-label="Clinical record navigation"
         className="hidden md:flex lg:hidden flex-col w-14 h-full bg-pmr-sidebar border-r border-[#334155] text-white"
       >
@@ -208,7 +207,7 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
         </div>
 
         {/* Navigation */}
-        <nav className="flex-1 py-2 overflow-y-auto">
+        <div className="flex-1 py-2 overflow-y-auto">
           <ul role="menu" aria-label="Record sections">
             {navItems.map((item, index) => (
               <li key={item.id} role="none" className="relative">
@@ -248,7 +247,7 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
               </li>
             ))}
           </ul>
-        </nav>
+        </div>
 
         {/* Footer */}
         <div className="p-2 border-t border-white/10">
@@ -257,14 +256,13 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
             <div>{currentTime}</div>
           </div>
         </div>
-      </aside>
+      </nav>
     )
   }
 
   // ── Desktop: 220px full sidebar ──
   return (
-    <aside
+    <nav
-      role="navigation"
       aria-label="Clinical record navigation"
       className="hidden lg:flex flex-col w-[220px] h-full bg-pmr-sidebar border-r border-[#334155] text-white"
     >
@@ -285,7 +283,12 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
           />
           <input
             id="sidebar-search"
-            type="text"
+            type="search"
+            role="combobox"
+            aria-label="Search record"
+            aria-expanded={searchQuery.trim().length >= 2 && groupedResults.size > 0}
+            aria-controls="search-results-listbox"
+            aria-autocomplete="list"
             placeholder="Search record..."
             value={searchQuery}
             onChange={e => setSearchQuery(e.target.value)}
@@ -306,16 +309,21 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
           )}
           {/* Search results dropdown — grouped by section */}
           {searchQuery.trim().length >= 2 && groupedResults.size > 0 && (
-            <div className="absolute top-full left-0 right-0 mt-1 bg-pmr-sidebar border border-white/10 rounded overflow-hidden z-50 max-h-[400px] overflow-y-auto shadow-lg">
+            <div
+              id="search-results-listbox"
+              role="listbox"
+              aria-label="Search results"
+              className="absolute top-full left-0 right-0 mt-1 bg-pmr-sidebar border border-white/10 rounded overflow-hidden z-50 max-h-[400px] overflow-y-auto shadow-lg"
+            >
               {Array.from(groupedResults.entries()).map(([sectionLabel, results]) => {
                 // Find section icon
                 const navItem = navItems.find(item => item.label === sectionLabel)
                 return (
-                  <div key={sectionLabel}>
+                  <div key={sectionLabel} role="group" aria-label={sectionLabel}>
                     {/* Section header */}
                     <div className="px-3 py-1.5 bg-white/[0.05] border-b border-white/10">
                       <div className="flex items-center gap-2">
-                        {navItem && <span className="text-white/40">{navItem.icon}</span>}
+                        {navItem && <span className="text-white/40" aria-hidden="true">{navItem.icon}</span>}
                         <span className="font-ui text-xs font-semibold uppercase tracking-wide text-white/50">
                           {sectionLabel}
                         </span>
@@ -329,6 +337,8 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
                       <button
                         key={result.item.id}
                         type="button"
+                        role="option"
+                        aria-selected={false}
                         onClick={() => handleSearchResultClick(result)}
                         className="w-full px-3 py-2.5 text-left hover:bg-white/[0.10] transition-colors border-b border-white/5 last:border-b-0"
                       >
@@ -349,7 +359,7 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
       </div>
 
       {/* Navigation items */}
-      <nav className="flex-1 py-2 overflow-y-auto">
+      <div className="flex-1 py-2 overflow-y-auto">
         <ul role="menu" aria-label="Record sections">
           {navItems.map((item, index) => (
             <li key={item.id} role="none">
@@ -382,7 +392,7 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
             </li>
           ))}
         </ul>
-      </nav>
+      </div>
 
       {/* Footer: session info */}
       <div className="p-4 border-t border-white/10">
@@ -391,6 +401,6 @@ export function ClinicalSidebar({ activeView, onViewChange, isTablet = false }:
           <div>Logged in: {currentTime}</div>
         </div>
       </div>
-    </aside>
+    </nav>
   )
 }

src/components/LoginScreen.tsx

@@ -30,6 +30,7 @@ export function LoginScreen({ onComplete }: LoginScreenProps) {
   const passwordIntervalRef = useRef<ReturnType<typeof setInterval> | null>(null)
   const cursorIntervalRef = useRef<ReturnType<typeof setInterval> | null>(null)
   const timeoutRefs = useRef<ReturnType<typeof setTimeout>[]>([])
+  const loginButtonRef = useRef<HTMLButtonElement>(null)
 
   const addTimeout = useCallback((fn: () => void, delay: number) => {
     const id = setTimeout(fn, delay)
@@ -92,6 +93,13 @@ export function LoginScreen({ onComplete }: LoginScreenProps) {
     }, 80)
   }, [prefersReducedMotion, addTimeout])
 
+  // Focus the login button when typing completes for keyboard accessibility
+  useEffect(() => {
+    if (typingComplete && loginButtonRef.current) {
+      loginButtonRef.current.focus()
+    }
+  }, [typingComplete])
+
   useEffect(() => {
     // Cursor blink: 530ms interval
     cursorIntervalRef.current = setInterval(() => {
@@ -125,8 +133,9 @@ export function LoginScreen({ onComplete }: LoginScreenProps) {
     <div
       className="fixed inset-0 flex items-center justify-center z-50"
       style={{ backgroundColor: '#1E293B' }}
-      role="status"
+      role="dialog"
       aria-label="Clinical system login"
+      aria-modal="true"
     >
       <motion.div
         className="bg-white"
@@ -273,10 +282,12 @@ export function LoginScreen({ onComplete }: LoginScreenProps) {
 
           {/* Log In Button — user clicks to proceed */}
           <button
+            ref={loginButtonRef}
             onClick={handleLogin}
             disabled={!typingComplete}
             onMouseEnter={() => setButtonHovered(true)}
             onMouseLeave={() => setButtonHovered(false)}
+            className="focus-visible:ring-2 focus-visible:ring-[#005EB8]/40 focus-visible:ring-offset-2 focus:outline-none"
             style={{
               width: '100%',
               padding: '10px 16px',

src/components/PMRInterface.tsx

@@ -179,8 +179,7 @@ function PMRContent({ children }: PMRInterfaceProps) {
         <motion.main
           ref={scrollContainerCallbackRef}
           variants={contentVariants}
-          role="main"
+          aria-label={`${viewLabels[activeView]} view`}
-          aria-label={`${activeView} view`}
           className={`
             flex-1 overflow-y-auto p-4 md:p-6
             ${isMobile ? 'pb-20' : ''}
@@ -258,7 +257,8 @@ function MobileSearchBar({ query, onChange }: MobileSearchBarProps) {
           className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-400 pointer-events-none"
         />
         <input
-          type="text"
+          type="search"
+          aria-label="Search record"
           placeholder="Search record..."
           value={query}
           onChange={e => onChange(e.target.value)}

src/components/PatientBanner.tsx

@@ -330,6 +330,7 @@ function StatusDot({ status }: StatusDotProps) {
   return (
     <span
       className={`w-2 h-2 rounded-full ${colorClass} flex-shrink-0`}
+      role="img"
       aria-label={`Status: ${status}`}
     />
   )
@@ -368,7 +369,7 @@ function ActionButton({ icon, label, href, external, compact }: ActionButtonProp
         transition-colors duration-150
         rounded
         font-ui font-medium
-        focus:outline-none focus:ring-2 focus:ring-pmr-nhsblue/40 focus:ring-offset-1 focus:ring-offset-pmr-banner
+        focus:outline-none focus-visible:ring-2 focus-visible:ring-pmr-nhsblue/40 focus-visible:ring-offset-1 focus-visible:ring-offset-pmr-banner
         ${compact ? 'px-2 py-1 text-xs' : 'px-3 py-1.5 text-sm'}
       `}
     >

src/components/views/ConsultationsView.tsx

@@ -66,7 +66,7 @@ function ConsultationEntry({
   const keyCodedEntry = consultation.codedEntries[0]
 
   return (
-    <div
+    <article
       className="bg-white border border-[#E5E7EB] rounded shadow-pmr overflow-hidden"
       style={{ borderLeftWidth: '3px', borderLeftColor: consultation.orgColor }}
     >
@@ -136,7 +136,7 @@ function ConsultationEntry({
           </motion.div>
         )}
       </AnimatePresence>
-    </div>
+    </article>
   )
 }
 

src/components/views/MedicationsView.tsx

@@ -119,6 +119,7 @@ export function MedicationsView() {
             {categoryTabs.map((tab) => (
               <button
                 key={tab.id}
+                id={`tab-${tab.id}`}
                 role="tab"
                 aria-selected={activeTab === tab.id}
                 aria-controls={`panel-${tab.id}`}
@@ -159,7 +160,7 @@ export function MedicationsView() {
         <div
           id={`panel-${activeTab}`}
           role="tabpanel"
-          aria-labelledby={activeTab}
+          aria-labelledby={`tab-${activeTab}`}
         >
           {isMobile ? (
             <MobileMedicationList

src/components/views/ProblemsView.tsx

@@ -26,8 +26,7 @@ function TrafficLight({ status }: { status: ProblemStatus }) {
     <div className="flex items-center gap-2">
       <span
         className={`w-2 h-2 rounded-full ${bg}`}
-        aria-label={`Status: ${label}`}
+        aria-hidden="true"
-        role="img"
       />
       <span className="font-ui text-xs text-gray-600">{label}</span>
     </div>

src/components/views/SummaryView.tsx

@@ -170,6 +170,7 @@ function ClinicalAlert({
           type="button"
           onClick={onAcknowledge}
           disabled={isAcknowledging}
+          aria-label="Acknowledge clinical alert"
           className="flex-shrink-0 px-3 py-1.5 text-xs font-ui font-medium border rounded transition-colors duration-100 hover:bg-[#F59E0B] hover:text-white disabled:opacity-50"
           style={{
             borderColor: '#F59E0B',