Summary table: stronger day borders, weekend bg, and WP-accurate tooltips

- 2px left border on Rooms th/td marks each day boundary clearly
- Saturday/Sunday columns get a subtle blue-tinted background
- Occupied number shows pickup-change context + prior week stats on hover
- '+' pickup button shows prior week line (matching original WP plugin logic)

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

frontend/src/pages/Planner.tsx

@@ -34,6 +34,25 @@ function getDayName(date: string) {
   return ['Mon','Tue','Wed','Thu','Fri','Sat','Sun'][(d.getDay() + 6) % 7]
 }
 
+function fullDayName(date: string) {
+  const d = new Date(date + 'T00:00:00')
+  return ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'][d.getDay()]
+}
+
+function isWeekend(date: string) {
+  const day = new Date(date + 'T00:00:00').getDay()
+  return day === 0 || day === 6
+}
+
+function priorLineFor(date: string, d: DayData): string {
+  const hint = d.pickup_hint ?? 0
+  const lead = d.pickup_lead ?? 0
+  const late = hint > 0
+    ? `${hint} room${hint === 1 ? '' : 's'} picked up within ${lead} day${lead === 1 ? '' : 's'} of arrival`
+    : 'no late pickups'
+  return `Last ${fullDayName(date)}: ${d.prior_occ} occ (${d.prior_vac} vac) — ${late}`
+}
+
 function fmtDate(date: string) {
   return new Date(date + 'T00:00:00').toLocaleDateString('en-GB', {
     weekday: 'short', day: 'numeric', month: 'short',
@@ -435,13 +454,26 @@ function SummaryTable({ bookings, pickup, onPickupChange }: SummaryProps) {
       <thead>
         <tr>
           <th className="col-label" rowSpan={2}>Category</th>
-          {dates.map(d => <th key={d} colSpan={2}>{fmtDayHeader(d)}</th>)}
+          {dates.map(d => (
+            <th key={d} colSpan={2} style={{
+              borderLeft: '2px solid rgba(255,255,255,0.3)',
+              ...(isWeekend(d) ? { background: '#253555' } : {}),
+            }}>{fmtDayHeader(d)}</th>
+          ))}
         </tr>
         <tr>
           {dates.map(d => (
             <>
-              <th key={d + '-r'} style={{ fontSize: '0.72rem', fontWeight: 400, background: '#1e2d42', minWidth: '72px' }}>Rooms</th>
+              <th key={d + '-r'} style={{
-              <th key={d + '-d'} style={{ fontSize: '0.72rem', fontWeight: 400, background: '#1e2d42', minWidth: '56px', borderLeft: '1px solid rgba(255,255,255,0.1)' }}>D / S / A</th>
+                fontSize: '0.72rem', fontWeight: 400, minWidth: '72px',
+                background: isWeekend(d) ? '#2a3d5e' : '#1e2d42',
+                borderLeft: '2px solid rgba(255,255,255,0.3)',
+              }}>Rooms</th>
+              <th key={d + '-d'} style={{
+                fontSize: '0.72rem', fontWeight: 400, minWidth: '56px',
+                background: isWeekend(d) ? '#2a3d5e' : '#1e2d42',
+                borderLeft: '1px solid rgba(255,255,255,0.1)',
+              }}>D / S / A</th>
             </>
           ))}
         </tr>
@@ -485,12 +517,28 @@ function CatRows({ cat, dates, pickup, onPickupChange, isLast }: {
         const prevPu   = prevDate ? getDisplayPickup(pickup, cat.id, prevDate, prevOcc, cat.total_rooms) : 0
         const dNew     = d.delta_new       || 0
         const dCanc    = d.delta_cancelled || 0
+        const wknd     = isWeekend(date)
+        const saved    = pickup[cat.id]?.[date]
+        const priorLine = priorLineFor(date, d)
+        let occTooltip = ''
+        if (saved && saved.count) {
+          const savedBooked = saved.total - saved.count
+          const changeDesc  = occupied > savedBooked ? 'changed' : 'unchanged'
+          const pickupDesc  = occupied > savedBooked ? 'decreased' : 'remains'
+          occTooltip = `+${saved.count} pickup set when booked was ${savedBooked} (target ${saved.total}). Booked ${changeDesc}, so pickup ${pickupDesc}.`
+        }
+        occTooltip = (occTooltip ? occTooltip + ' | ' : '') + priorLine
 
         return (
           <>
             {/* Left cell: Rooms / vac / pickup controls */}
-            <td key={date + '-r'} style={{ textAlign: 'center', verticalAlign: 'middle', borderBottom: bbStyle, padding: '0.4rem 0.3rem' }}>
+            <td key={date + '-r'} style={{
-              <div style={{ fontWeight: 700, fontSize: '1.1rem' }}>
+              textAlign: 'center', verticalAlign: 'middle', borderBottom: bbStyle,
+              padding: '0.4rem 0.3rem',
+              borderLeft: '2px solid var(--card-border)',
+              ...(wknd ? { background: 'rgba(100,120,160,0.07)' } : {}),
+            }}>
+              <div style={{ fontWeight: 700, fontSize: '1.1rem' }} title={occTooltip}>
                 {occupied}{pu > 0 && <span className="pickup-tag"> +{pu}</span>}
               </div>
               <div style={{ fontSize: '0.72rem', color: 'var(--text-mid)', marginBottom: '4px' }}>
@@ -500,12 +548,16 @@ function CatRows({ cat, dates, pickup, onPickupChange, isLast }: {
                 <button className="pickup-btn" disabled={pu <= 0} onClick={() => onPickupChange(date, -1)}>−</button>
                 <span className="pickup-num">{pu}</span>
                 <button className="pickup-btn" disabled={pu >= vacant}
-                  title={d.pickup_hint > 0 ? `${d.pickup_hint} late pickup${d.pickup_hint > 1 ? 's' : ''} last ${getDayName(date)}` : 'No late pickups last week'}
+                  title={priorLine}
                   onClick={() => onPickupChange(date, 1)}>+</button>
               </div>
             </td>
             {/* Right cell: D / S / A */}
-            <td key={date + '-dsa'} style={{ verticalAlign: 'middle', borderLeft: '1px solid var(--card-border)', borderBottom: bbStyle, padding: '0.4rem 0.5rem 0.4rem 0.4rem', textAlign: 'right' }}>
+            <td key={date + '-dsa'} style={{
+              verticalAlign: 'middle', borderLeft: '1px solid var(--card-border)',
+              borderBottom: bbStyle, padding: '0.4rem 0.5rem 0.4rem 0.4rem', textAlign: 'right',
+              ...(wknd ? { background: 'rgba(100,120,160,0.07)' } : {}),
+            }}>
               {(dNew > 0 || dCanc > 0) && (
                 <div style={{ marginBottom: '3px' }}>
                   {dNew  > 0 && <span className="delta-new">▲{dNew}</span>}
@@ -553,9 +605,14 @@ function TotalRows({ dates, cats, pickup }: {
           dNew  += d.delta_new       || 0
           dCanc += d.delta_cancelled || 0
         }
+        const wknd = isWeekend(date)
         return (
           <>
-            <td key={date + '-r'} style={{ textAlign: 'center', verticalAlign: 'middle', padding: '0.4rem 0.3rem' }}>
+            <td key={date + '-r'} style={{
+              textAlign: 'center', verticalAlign: 'middle', padding: '0.4rem 0.3rem',
+              borderLeft: '2px solid var(--card-border)',
+              ...(wknd ? { background: 'rgba(100,120,160,0.07)' } : {}),
+            }}>
               <div style={{ fontWeight: 700, fontSize: '1.1rem' }}>
                 {occupied}{pu > 0 && <span className="pickup-tag"> +{pu}</span>}
               </div>
@@ -563,7 +620,11 @@ function TotalRows({ dates, cats, pickup }: {
                 {vacant} vac{pu > 0 && <span className="pickup-tag"> ({vacant - pu})</span>}
               </div>
             </td>
-            <td key={date + '-dsa'} style={{ verticalAlign: 'middle', borderLeft: '1px solid var(--card-border)', padding: '0.4rem 0.5rem 0.4rem 0.4rem', textAlign: 'right' }}>
+            <td key={date + '-dsa'} style={{
+              verticalAlign: 'middle', borderLeft: '1px solid var(--card-border)',
+              padding: '0.4rem 0.5rem 0.4rem 0.4rem', textAlign: 'right',
+              ...(wknd ? { background: 'rgba(100,120,160,0.07)' } : {}),
+            }}>
               {(dNew > 0 || dCanc > 0) && (
                 <div style={{ marginBottom: '3px' }}>
                   {dNew  > 0 && <span className="delta-new">▲{dNew}</span>}