Reformat detail panel view modes to 2-column grid layout

Match TaskDetailPanel gold standard: short fields use grid grid-cols-2
with icon+label headers, full-width fields (description) below the grid.
All grid slots render with "—" fallback to keep alignment consistent.

- Todo: Priority, Category, Due Date, Recurrence in grid
- Reminder: Status, Recurrence, Remind At, Snoozed Until in grid
- Calendar: Calendar, Starred, Start, End, Location, Recurrence in grid
- Task: Add "Updated X ago" footer (was missing)

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

frontend/src/components/calendar/EventDetailPanel.tsx

@@ -807,79 +807,95 @@ export default function EventDetailPanel({
         ) : (
           /* View mode */
           <>
-            {/* Calendar */}
-            <div className="space-y-0.5">
-              <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Calendar</p>
-              <div className="flex items-center gap-2">
-                <div
-                  className="w-2 h-2 rounded-full shrink-0"
-                  style={{ backgroundColor: event?.calendar_color || 'hsl(var(--accent-color))' }}
-                />
-                <span className="text-sm">{event?.calendar_name}</span>
+            {/* 2-column grid: Calendar, Starred, Start, End, Location, Recurrence */}
+            <div className="grid grid-cols-2 gap-3">
+              {/* Calendar */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Calendar className="h-3 w-3" />
+                  Calendar
+                </div>
+                <div className="flex items-center gap-2">
+                  <div
+                    className="w-2 h-2 rounded-full shrink-0"
+                    style={{ backgroundColor: event?.calendar_color || 'hsl(var(--accent-color))' }}
+                  />
+                  <span className="text-sm">{event?.calendar_name}</span>
+                </div>
+              </div>
+
+              {/* Starred */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Star className="h-3 w-3" />
+                  Starred
+                </div>
+                {event?.is_starred ? (
+                  <p className="text-sm text-amber-200/90">Starred</p>
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
+              </div>
+
+              {/* Start */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Clock className="h-3 w-3" />
+                  Start
+                </div>
+                <CopyableField value={startStr} icon={Clock} label="Start time" />
+              </div>
+
+              {/* End */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Clock className="h-3 w-3" />
+                  End
+                </div>
+                {endStr ? (
+                  <CopyableField value={endStr} icon={Clock} label="End time" />
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
+              </div>
+
+              {/* Location */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <MapPin className="h-3 w-3" />
+                  Location
+                </div>
+                {locationName ? (
+                  <CopyableField value={locationName} icon={MapPin} label="Location" />
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
+              </div>
+
+              {/* Recurrence */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Repeat className="h-3 w-3" />
+                  Recurrence
+                </div>
+                {isRecurring && event?.recurrence_rule ? (
+                  <p className="text-sm">{formatRecurrenceRule(event.recurrence_rule)}</p>
+                ) : isRecurring ? (
+                  <p className="text-sm">Recurring event</p>
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
               </div>
             </div>
 
-            {/* Start */}
-            <div className="space-y-0.5">
-              <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Start</p>
-              <CopyableField value={startStr} icon={Clock} label="Start time" />
-            </div>
-
-            {/* End */}
-            {endStr && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">End</p>
-                <CopyableField value={endStr} icon={Clock} label="End time" />
-              </div>
-            )}
-
-            {/* Location */}
-            {locationName && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Location</p>
-                <CopyableField value={locationName} icon={MapPin} label="Location" />
-              </div>
-            )}
-
-            {/* Description */}
+            {/* Description — full width */}
             {event?.description && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Description</p>
-                <div className="flex items-start gap-2">
-                  <AlignLeft className="h-3.5 w-3.5 text-muted-foreground shrink-0 mt-0.5" />
-                  <p className="text-sm whitespace-pre-wrap">{event.description}</p>
-                </div>
-              </div>
-            )}
-
-            {/* Starred */}
-            {event?.is_starred && (
-              <div className="space-y-0.5">
-                <div className="flex items-center gap-2">
-                  <Star className="h-3.5 w-3.5 text-amber-400 fill-amber-400 shrink-0" />
-                  <span className="text-sm text-amber-200/90">Starred event</span>
-                </div>
-              </div>
-            )}
-
-            {/* Recurrence */}
-            {isRecurring && event?.recurrence_rule && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Recurrence</p>
-                <div className="flex items-center gap-2">
-                  <Repeat className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
-                  <span className="text-sm">{formatRecurrenceRule(event.recurrence_rule)}</span>
-                </div>
-              </div>
-            )}
-
-            {isRecurring && !event?.recurrence_rule && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Recurrence</p>
-                <div className="flex items-center gap-2">
-                  <Repeat className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
-                  <span className="text-sm">Recurring event</span>
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <AlignLeft className="h-3 w-3" />
+                  Description
                 </div>
+                <p className="text-sm whitespace-pre-wrap">{event.description}</p>
               </div>
             )}
 

frontend/src/components/projects/TaskDetailPanel.tsx

@@ -7,6 +7,7 @@ import {
   Calendar, User, Flag, Activity, Send, X, Save,
 } from 'lucide-react';
 import api, { getErrorMessage } from '@/lib/api';
+import { formatUpdatedAt } from '@/components/shared/utils';
 import type { ProjectTask, TaskComment, Person } from '@/types';
 import { Button } from '@/components/ui/button';
 import { Badge } from '@/components/ui/badge';
@@ -558,6 +559,15 @@ export default function TaskDetailPanel({
               <Send className="h-4 w-4" />
             </Button>
           </div>
+
+          {/* Updated at footer */}
+          {task.updated_at && (
+            <div className="pt-2 border-t border-border">
+              <span className="text-[11px] text-muted-foreground">
+                {formatUpdatedAt(task.updated_at)}
+              </span>
+            </div>
+          )}
         </div>
       </div>
     </div>

frontend/src/components/reminders/ReminderDetailPanel.tsx

@@ -3,7 +3,7 @@ import { useMutation, useQueryClient } from '@tanstack/react-query';
 import { toast } from 'sonner';
 import { format, parseISO, isPast, isToday } from 'date-fns';
 import {
-  X, Pencil, Trash2, Save, Bell, BellOff, Clock, Repeat, AlertCircle,
+  X, Pencil, Trash2, Save, Bell, BellOff, Clock, Repeat, AlertCircle, AlignLeft,
 } from 'lucide-react';
 import api, { getErrorMessage } from '@/lib/api';
 import type { Reminder } from '@/types';
@@ -377,76 +377,82 @@ export default function ReminderDetailPanel({
         ) : (
           /* View mode */
           <>
-            {/* Status */}
-            <div className="space-y-0.5">
-              <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Status</p>
-              <div className="flex items-center gap-2">
+            {/* 2-column grid: Status, Recurrence, Remind At, Snoozed Until */}
+            <div className="grid grid-cols-2 gap-3">
+              {/* Status */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  {reminder!.is_dismissed ? (
+                    <BellOff className="h-3 w-3" />
+                  ) : isOverdue ? (
+                    <AlertCircle className="h-3 w-3" />
+                  ) : (
+                    <Bell className="h-3 w-3" />
+                  )}
+                  Status
+                </div>
                 {reminder!.is_dismissed ? (
-                  <>
-                    <BellOff className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
-                    <span className="text-sm text-muted-foreground">Dismissed</span>
-                  </>
+                  <p className="text-sm text-muted-foreground">Dismissed</p>
                 ) : isOverdue ? (
-                  <>
-                    <AlertCircle className="h-3.5 w-3.5 text-red-400 shrink-0" />
-                    <span className="text-sm text-red-400">Overdue</span>
-                  </>
+                  <p className="text-sm text-red-400">Overdue</p>
                 ) : isDueToday ? (
-                  <>
-                    <Bell className="h-3.5 w-3.5 text-yellow-400 shrink-0" />
-                    <span className="text-sm text-yellow-400">Due today</span>
-                  </>
+                  <p className="text-sm text-yellow-400">Due today</p>
                 ) : (
-                  <>
-                    <Bell className="h-3.5 w-3.5 text-orange-400 shrink-0" />
-                    <span className="text-sm text-orange-400">Active</span>
-                  </>
+                  <p className="text-sm text-orange-400">Active</p>
+                )}
+              </div>
+
+              {/* Recurrence */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Repeat className="h-3 w-3" />
+                  Recurrence
+                </div>
+                {reminder!.recurrence_rule ? (
+                  <p className="text-sm">{recurrenceLabels[reminder!.recurrence_rule] || reminder!.recurrence_rule}</p>
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
+              </div>
+
+              {/* Remind At */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Clock className="h-3 w-3" />
+                  Remind At
+                </div>
+                {remindDate ? (
+                  <CopyableField
+                    value={format(remindDate, 'EEEE, MMMM d, yyyy · h:mm a')}
+                    icon={Clock}
+                    label="Remind at"
+                  />
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
+              </div>
+
+              {/* Snoozed Until */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Clock className="h-3 w-3" />
+                  Snoozed Until
+                </div>
+                {reminder!.snoozed_until ? (
+                  <p className="text-sm">{format(parseISO(reminder!.snoozed_until), 'MMM d, h:mm a')}</p>
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
                 )}
               </div>
             </div>
 
-            {/* Remind At */}
-            {remindDate && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Remind At</p>
-                <CopyableField
-                  value={format(remindDate, 'EEEE, MMMM d, yyyy · h:mm a')}
-                  icon={Clock}
-                  label="Remind at"
-                />
-              </div>
-            )}
-
-            {/* Snoozed */}
-            {reminder!.snoozed_until && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Snoozed Until</p>
-                <div className="flex items-center gap-2">
-                  <Clock className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
-                  <span className="text-sm">
-                    {format(parseISO(reminder!.snoozed_until), 'MMM d, h:mm a')}
-                  </span>
-                </div>
-              </div>
-            )}
-
-            {/* Recurrence */}
-            {reminder!.recurrence_rule && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Recurrence</p>
-                <div className="flex items-center gap-2">
-                  <Repeat className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
-                  <span className="text-sm">
-                    {recurrenceLabels[reminder!.recurrence_rule] || reminder!.recurrence_rule}
-                  </span>
-                </div>
-              </div>
-            )}
-
-            {/* Description */}
+            {/* Description — full width */}
             {reminder!.description && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Description</p>
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <AlignLeft className="h-3 w-3" />
+                  Description
+                </div>
                 <p className="text-sm whitespace-pre-wrap text-muted-foreground leading-relaxed">
                   {reminder!.description}
                 </p>

frontend/src/components/todos/TodoDetailPanel.tsx

@@ -3,7 +3,7 @@ import { useMutation, useQueryClient } from '@tanstack/react-query';
 import { toast } from 'sonner';
 import { format, parseISO, isToday } from 'date-fns';
 import {
-  X, Pencil, Trash2, Save, Clock, Calendar, Flag, Tag, Repeat, CheckSquare, AlertCircle,
+  X, Pencil, Trash2, Save, Clock, Calendar, Flag, Tag, Repeat, CheckSquare, AlertCircle, AlignLeft,
 } from 'lucide-react';
 import api, { getErrorMessage } from '@/lib/api';
 import type { Todo } from '@/types';
@@ -433,95 +433,104 @@ export default function TodoDetailPanel({
         ) : (
           /* View mode */
           <>
-            {/* Priority */}
-            <div className="space-y-0.5">
-              <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Priority</p>
-              <div className="flex items-center gap-2">
-                <Flag className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
+            {/* 2-column grid: Priority, Category, Due Date, Recurrence */}
+            <div className="grid grid-cols-2 gap-3">
+              {/* Priority */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Flag className="h-3 w-3" />
+                  Priority
+                </div>
                 <Badge className={`text-[9px] px-1.5 py-0.5 rounded-full ${priorityColors[todo!.priority] ?? ''}`}>
                   {todo!.priority}
                 </Badge>
               </div>
-            </div>
 
-            {/* Category */}
-            {todo!.category && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Category</p>
-                <div className="flex items-center gap-2">
-                  <Tag className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
+              {/* Category */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Tag className="h-3 w-3" />
+                  Category
+                </div>
+                {todo!.category ? (
                   <Badge className="text-[9px] px-1.5 py-0.5 bg-blue-500/15 text-blue-400">
                     {todo!.category}
                   </Badge>
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
+              </div>
+
+              {/* Due Date */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  {isOverdue ? <AlertCircle className="h-3 w-3" /> : <Calendar className="h-3 w-3" />}
+                  Due Date
                 </div>
+                {dueDate ? (
+                  <CopyableField
+                    value={`${isOverdue ? 'Overdue · ' : isDueToday ? 'Today · ' : ''}${format(dueDate, 'EEEE, MMMM d, yyyy')}${todo!.due_time ? ` at ${todo!.due_time.slice(0, 5)}` : ''}`}
+                    icon={isOverdue ? AlertCircle : Calendar}
+                    label="Due date"
+                  />
+                ) : todo!.due_time ? (
+                  <CopyableField value={todo!.due_time.slice(0, 5)} icon={Clock} label="Due time" />
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
               </div>
-            )}
 
-            {/* Due Date */}
-            {dueDate && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Due Date</p>
-                <CopyableField
-                  value={`${isOverdue ? 'Overdue · ' : isDueToday ? 'Today · ' : ''}${format(dueDate, 'EEEE, MMMM d, yyyy')}${todo!.due_time ? ` at ${todo!.due_time.slice(0, 5)}` : ''}`}
-                  icon={isOverdue ? AlertCircle : Calendar}
-                  label="Due date"
-                />
-              </div>
-            )}
-
-            {/* Due Time (if no date but has time) */}
-            {!dueDate && todo!.due_time && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Due Time</p>
-                <CopyableField value={todo!.due_time.slice(0, 5)} icon={Clock} label="Due time" />
-              </div>
-            )}
-
-            {/* Recurrence */}
-            {todo!.recurrence_rule && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Recurrence</p>
-                <div className="flex items-center gap-2">
-                  <Repeat className="h-3.5 w-3.5 text-muted-foreground shrink-0" />
-                  <span className="text-sm">{recurrenceLabels[todo!.recurrence_rule] || todo!.recurrence_rule}</span>
+              {/* Recurrence */}
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Repeat className="h-3 w-3" />
+                  Recurrence
                 </div>
+                {todo!.recurrence_rule ? (
+                  <p className="text-sm">{recurrenceLabels[todo!.recurrence_rule] || todo!.recurrence_rule}</p>
+                ) : (
+                  <p className="text-sm text-muted-foreground">—</p>
+                )}
               </div>
-            )}
+            </div>
 
-            {/* Description */}
-            {todo!.description && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Description</p>
-                <p className="text-sm whitespace-pre-wrap text-muted-foreground leading-relaxed">
-                  {todo!.description}
+            {/* Completion status — full width */}
+            {todo!.completed && todo!.completed_at && (
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <CheckSquare className="h-3 w-3" />
+                  Completed
+                </div>
+                <p className="text-sm text-green-400">
+                  {format(parseISO(todo!.completed_at), 'MMM d, yyyy · h:mm a')}
                 </p>
               </div>
             )}
 
-            {/* Completion status */}
-            {todo!.completed && todo!.completed_at && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Completed</p>
-                <div className="flex items-center gap-2">
-                  <CheckSquare className="h-3.5 w-3.5 text-green-400 shrink-0" />
-                  <span className="text-sm text-green-400">
-                    {format(parseISO(todo!.completed_at), 'MMM d, yyyy · h:mm a')}
-                  </span>
+            {/* Reset info — full width */}
+            {todo!.completed && todo!.recurrence_rule && todo!.reset_at && (
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <Repeat className="h-3 w-3" />
+                  Resets
                 </div>
+                <p className="text-sm text-purple-400">
+                  {format(parseISO(todo!.reset_at), 'EEE, MMM d')}
+                  {todo!.next_due_date && ` · Next due ${format(parseISO(todo!.next_due_date), 'MMM d')}`}
+                </p>
               </div>
             )}
 
-            {/* Reset info for recurring */}
-            {todo!.completed && todo!.recurrence_rule && todo!.reset_at && (
-              <div className="space-y-0.5">
-                <p className="text-[11px] uppercase tracking-wider text-muted-foreground">Resets</p>
-                <div className="flex items-center gap-2">
-                  <Repeat className="h-3.5 w-3.5 text-purple-400 shrink-0" />
-                  <span className="text-sm text-purple-400">
-                    {format(parseISO(todo!.reset_at), 'EEE, MMM d')}
-                    {todo!.next_due_date && ` · Next due ${format(parseISO(todo!.next_due_date), 'MMM d')}`}
-                  </span>
+            {/* Description — full width */}
+            {todo!.description && (
+              <div className="space-y-1">
+                <div className="flex items-center gap-1.5 text-[11px] text-muted-foreground uppercase tracking-wider">
+                  <AlignLeft className="h-3 w-3" />
+                  Description
                 </div>
+                <p className="text-sm whitespace-pre-wrap text-muted-foreground leading-relaxed">
+                  {todo!.description}
+                </p>
               </div>
             )}