Fix QA findings: dual panel mount, touch-action, font floor, a11y

- Replace CSS-only panel hiding with isDesktop media query guard
  in Todos, Reminders, People, Locations, ProjectDetail (W-01)
- Add touch-action: manipulation for mobile interactive elements (W-04)
- Bump FullCalendar more-link from 0.55rem to 0.625rem (W-07)
- Add aria-label on admin portal tab NavLinks (S-05)

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

frontend/src/components/admin/AdminPortal.tsx

@@ -35,6 +35,7 @@ export default function AdminPortal() {
                   key={path}
                   to={path}
                   title={label}
+                  aria-label={label}
                   className={cn(
                     'flex items-center justify-center gap-1.5 px-2.5 md:px-4 h-full text-sm font-medium transition-colors duration-150 border-b-2 -mb-px whitespace-nowrap',
                     isActive

frontend/src/components/locations/LocationsPage.tsx

@@ -1,4 +1,5 @@
 import { useState, useMemo, useRef, useEffect } from 'react';
+import { useMediaQuery } from '@/hooks/useMediaQuery';
 import { Plus, MapPin, Phone, Mail, Tag, AlignLeft } from 'lucide-react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { toast } from 'sonner';
@@ -19,6 +20,7 @@ import LocationForm from './LocationForm';
 
 export default function LocationsPage() {
   const queryClient = useQueryClient();
+  const isDesktop = useMediaQuery('(min-width: 1024px)');
 
   const [selectedLocationId, setSelectedLocationId] = useState<number | null>(null);
   const [showForm, setShowForm] = useState(false);
@@ -373,20 +375,20 @@ export default function LocationsPage() {
           </div>
 
           {/* Detail panel (desktop) */}
-          <div
-            className={`overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] ${
-              panelOpen ? 'hidden lg:block lg:w-[45%]' : 'w-0 opacity-0'
-            }`}
-          >
-            {renderPanel()}
-          </div>
+          {panelOpen && isDesktop && (
+            <div
+              className="overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] w-[45%]"
+            >
+              {renderPanel()}
+            </div>
+          )}
         </div>
       </div>
 
       {/* Mobile detail panel overlay */}
-      {panelOpen && selectedLocation && (
+      {panelOpen && selectedLocation && !isDesktop && (
         <div
-          className="lg:hidden fixed inset-0 z-50 bg-background/80 backdrop-blur-sm"
+          className="fixed inset-0 z-50 bg-background/80 backdrop-blur-sm"
           onClick={() => setSelectedLocationId(null)}
         >
           <div

frontend/src/components/people/PeoplePage.tsx

@@ -1,4 +1,5 @@
 import { useState, useMemo, useRef, useEffect } from 'react';
+import { useMediaQuery } from '@/hooks/useMediaQuery';
 import { Plus, Users, Star, Cake, Phone, Mail, MapPin, Tag, Building2, Briefcase, AlignLeft, Ghost, ChevronDown, Unlink, Link2, User2 } from 'lucide-react';
 import type { LucideIcon } from 'lucide-react';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
@@ -214,6 +215,7 @@ const panelFields: PanelField[] = [
 export default function PeoplePage() {
   const queryClient = useQueryClient();
   const tableContainerRef = useRef<HTMLDivElement>(null);
+  const isDesktop = useMediaQuery('(min-width: 1024px)');
 
   const [selectedPersonId, setSelectedPersonId] = useState<number | null>(null);
   const [showForm, setShowForm] = useState(false);
@@ -762,20 +764,20 @@ export default function PeoplePage() {
           </div>
 
           {/* Detail panel (desktop) */}
-          <div
-            className={`overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] ${
-              panelOpen ? 'hidden lg:block lg:w-[45%]' : 'w-0 opacity-0'
-            }`}
-          >
-            {renderPanel()}
-          </div>
+          {panelOpen && isDesktop && (
+            <div
+              className="overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] w-[45%]"
+            >
+              {renderPanel()}
+            </div>
+          )}
         </div>
       </div>
 
       {/* Mobile detail panel overlay */}
-      {panelOpen && selectedPerson && (
+      {panelOpen && selectedPerson && !isDesktop && (
         <div
-          className="lg:hidden fixed inset-0 z-50 bg-background/80 backdrop-blur-sm"
+          className="fixed inset-0 z-50 bg-background/80 backdrop-blur-sm"
           onClick={() => setSelectedPersonId(null)}
         >
           <div

frontend/src/components/projects/ProjectDetail.tsx

@@ -1,4 +1,5 @@
 import { useState, useMemo, useCallback } from 'react';
+import { useMediaQuery } from '@/hooks/useMediaQuery';
 import { useParams, useNavigate } from 'react-router-dom';
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { toast } from 'sonner';
@@ -257,6 +258,8 @@ export default function ProjectDetail() {
     }
   }, [topLevelTasks, sortMode, sortSubtasks]);
 
+  const isDesktop = useMediaQuery('(min-width: 1024px)');
+
   const selectedTask = useMemo(() => {
     if (!selectedTaskId) return null;
     // Search top-level and subtasks
@@ -628,29 +631,29 @@ export default function ProjectDetail() {
             </div>
           </div>
 
-          {/* Right panel: task detail (hidden on small screens) */}
-          <div
-            className={`overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] border-l border-border bg-card ${
-              selectedTaskId ? 'hidden lg:flex lg:w-[45%]' : 'w-0 opacity-0 border-l-0'
-            }`}
-          >
-            <div className="flex-1 overflow-hidden min-w-[360px]">
-              <TaskDetailPanel
-                task={selectedTask}
-                projectId={parseInt(id!)}
-                onDelete={handleDeleteTask}
-                onAddSubtask={(parentId) => openTaskForm(null, parentId)}
-                onClose={() => setSelectedTaskId(null)}
-                onSelectTask={setSelectedTaskId}
-              />
+          {/* Right panel: task detail (desktop only) */}
+          {selectedTaskId && isDesktop && (
+            <div
+              className="overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] border-l border-border bg-card flex w-[45%]"
+            >
+              <div className="flex-1 overflow-hidden min-w-[360px]">
+                <TaskDetailPanel
+                  task={selectedTask}
+                  projectId={parseInt(id!)}
+                  onDelete={handleDeleteTask}
+                  onAddSubtask={(parentId) => openTaskForm(null, parentId)}
+                  onClose={() => setSelectedTaskId(null)}
+                  onSelectTask={setSelectedTaskId}
+                />
+              </div>
             </div>
-          </div>
+          )}
         </div>
       </div>
 
       {/* Mobile: show detail panel as overlay when task selected on small screens */}
-      {selectedTaskId && selectedTask && (
-        <div className="lg:hidden fixed inset-0 z-50 bg-background/80 backdrop-blur-sm">
+      {selectedTaskId && selectedTask && !isDesktop && (
+        <div className="fixed inset-0 z-50 bg-background/80 backdrop-blur-sm">
           <div className="fixed inset-y-0 right-0 w-full sm:w-[400px] bg-card border-l border-border shadow-lg">
             <div className="flex items-center justify-between px-4 py-3 border-b border-border">
               <span className="text-sm font-medium text-muted-foreground">Task Details</span>

frontend/src/components/reminders/RemindersPage.tsx

@@ -1,4 +1,5 @@
 import { useState, useMemo, useEffect } from 'react';
+import { useMediaQuery } from '@/hooks/useMediaQuery';
 import { useLocation } from 'react-router-dom';
 import { Plus, Bell, BellOff, AlertCircle, Search } from 'lucide-react';
 import { useQuery } from '@tanstack/react-query';
@@ -24,6 +25,8 @@ type StatusFilter = (typeof statusFilters)[number]['value'];
 export default function RemindersPage() {
   const location = useLocation();
 
+  const isDesktop = useMediaQuery('(min-width: 1024px)');
+
   // Panel state
   const [selectedReminderId, setSelectedReminderId] = useState<number | null>(null);
   const [panelMode, setPanelMode] = useState<'closed' | 'view' | 'create'>('closed');
@@ -216,24 +219,24 @@ export default function RemindersPage() {
         </div>
 
         {/* Detail panel (desktop) */}
-        <div
-          className={`overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] ${
-            panelOpen ? 'hidden lg:block lg:w-[45%]' : 'w-0 opacity-0'
-          }`}
-        >
-          <ReminderDetailPanel
-            reminder={panelMode === 'view' ? selectedReminder : null}
-            isCreating={panelMode === 'create'}
-            onClose={handlePanelClose}
-            onSaved={panelMode === 'create' ? handlePanelClose : undefined}
-          />
-        </div>
+        {panelOpen && isDesktop && (
+          <div
+            className="overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] w-[45%]"
+          >
+            <ReminderDetailPanel
+              reminder={panelMode === 'view' ? selectedReminder : null}
+              isCreating={panelMode === 'create'}
+              onClose={handlePanelClose}
+              onSaved={panelMode === 'create' ? handlePanelClose : undefined}
+            />
+          </div>
+        )}
       </div>
 
       {/* Mobile detail panel overlay */}
-      {panelOpen && (
+      {panelOpen && !isDesktop && (
         <div
-          className="lg:hidden fixed inset-0 z-50 bg-background/80 backdrop-blur-sm"
+          className="fixed inset-0 z-50 bg-background/80 backdrop-blur-sm"
           onClick={handlePanelClose}
         >
           <div

frontend/src/components/todos/TodosPage.tsx

@@ -1,4 +1,5 @@
 import { useState, useMemo, useEffect } from 'react';
+import { useMediaQuery } from '@/hooks/useMediaQuery';
 import { useLocation } from 'react-router-dom';
 import { Plus, CheckSquare, CheckCircle2, AlertCircle } from 'lucide-react';
 import { useQuery } from '@tanstack/react-query';
@@ -25,6 +26,8 @@ const priorityFilters = [
 export default function TodosPage() {
   const location = useLocation();
 
+  const isDesktop = useMediaQuery('(min-width: 1024px)');
+
   // Panel state
   const [selectedTodoId, setSelectedTodoId] = useState<number | null>(null);
   const [panelMode, setPanelMode] = useState<'closed' | 'view' | 'create'>('closed');
@@ -251,24 +254,24 @@ export default function TodosPage() {
         </div>
 
         {/* Detail panel (desktop) */}
-        <div
-          className={`overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] ${
-            panelOpen ? 'hidden lg:block lg:w-[45%]' : 'w-0 opacity-0'
-          }`}
-        >
-          <TodoDetailPanel
-            todo={panelMode === 'view' ? selectedTodo : null}
-            isCreating={panelMode === 'create'}
-            onClose={handlePanelClose}
-            onSaved={panelMode === 'create' ? handlePanelClose : undefined}
-          />
-        </div>
+        {panelOpen && isDesktop && (
+          <div
+            className="overflow-hidden transition-all duration-300 ease-[cubic-bezier(0.16,1,0.3,1)] w-[45%]"
+          >
+            <TodoDetailPanel
+              todo={panelMode === 'view' ? selectedTodo : null}
+              isCreating={panelMode === 'create'}
+              onClose={handlePanelClose}
+              onSaved={panelMode === 'create' ? handlePanelClose : undefined}
+            />
+          </div>
+        )}
       </div>
 
       {/* Mobile detail panel overlay */}
-      {panelOpen && (
+      {panelOpen && !isDesktop && (
         <div
-          className="lg:hidden fixed inset-0 z-50 bg-background/80 backdrop-blur-sm"
+          className="fixed inset-0 z-50 bg-background/80 backdrop-blur-sm"
           onClick={handlePanelClose}
         >
           <div

frontend/src/index.css

@@ -325,6 +325,13 @@ form[data-submitted] input:invalid + button {
   }
 }
 
+/* ── Mobile touch optimisation ── */
+@media (max-width: 767px) {
+  button, a, [role="button"], input, select, textarea {
+    touch-action: manipulation;
+  }
+}
+
 /* ── FullCalendar mobile overrides ── */
 @media (max-width: 767px) {
   .fc .fc-daygrid-event {
@@ -361,7 +368,7 @@ form[data-submitted] input:invalid + button {
   }
 
   .fc .fc-daygrid-more-link {
-    font-size: 0.55rem;
+    font-size: 0.625rem;
   }
 }
 /* ── Ambient background animations ── */