feat: sticky headers (v1.6.2)

chore: update build artifacts for v1.6.1
chore: version bump
2026-03-05 11:34:19 +01:00 · 2026-03-04 14:46:17 +01:00 · 2026-03-04 14:46:11 +01:00 · 2026-03-04 14:45:25 +01:00 · 2026-03-04 14:45:13 +01:00 · 2026-03-04 13:29:25 +01:00
16 changed files with 905 additions and 356 deletions
--- a/.agent/rules/rules.md
+++ b/.agent/rules/rules.md
@@ -43,6 +43,7 @@ trigger: always_on
    - **Visuals**: Generate screenshots/mockups for UI changes.
    - **Evidence**: Log outputs for verification.
 3.  **Design**: Optimize code for AI readability (context efficiency).
 4. **Retry on Failure**: When an operation does not finish or does not work as expected, do not try endlessly to fix this. Try a few times and ask the user if no progress can be made.
 ## 6. Workspace Scopes
 - **Browser**: Allowed for documentation and safe browsing. No automated logins without permission.
--- a/REQUIREMENTS.md
+++ b/REQUIREMENTS.md
@@ -61,6 +61,8 @@ Das System umfasst die Darstellung von Menüplänen in einer Wochenübersicht, d
 | FR-090 | Die Hauptnavigation (Wochen-Toggles) muss linksbündig neben dem App-Titel positioniert sein. | Niedrig | v1.5.0 |
 | FR-091 | Ein dynamisches Alarm-Icon im Header muss den Überwachungsstatus geflaggter Menüs anzeigen (Gelb=Überwachung aktiv aber kein Menü verfügbar, Grün=Mindestens ein Menü verfügbar, Versteckt=keine Flags). Der Tooltip muss den Zeitpunkt der letzten Prüfung als relativen String (z.B. "vor 4 Min.") enthalten. | Mittel | v1.5.0 (Update v1.4.10) |
 | FR-092 | Solange Menüdaten für die Nächste Woche verfügbar sind, aber noch keine Bestellungen getätigt wurden, muss der entsprechende Navigation-Button animiert und farblich (Gelb) hervorgehoben werden. Nach der ersten Bestellung muss die Hervorhebung automatisch erlöschen. Zusätzlich muss beim erstmaligen Erscheinen der Daten ein einmaliger Toast-Hinweis angezeigt werden. | Mittel | v1.6.0 (Update v1.4.21) |
 | **Sprachfilter** | | | |
 | FR-120 | Das System muss zweisprachige Menübeschreibungen (Deutsch/Englisch) erkennen und dem Benutzer erlauben, via UI-Toggle zwischen DE, EN und ALL (beide Sprachen) zu wechseln. Die Sprachpräferenz muss persistent gespeichert werden. Allergen-Codes müssen in allen Modi angezeigt werden. | Mittel | v1.6.0 |
 | **Benutzer-Feedback** | | | |
 | FR-095 | Alle benutzerrelevanten Aktionen (Bestellung, Stornierung, Fehler) müssen durch nicht-blockierende Benachrichtigungen (Toasts) bestätigt werden. | Mittel | v1.0.1 |
 | FR-096 | Bei einem Verbindungsfehler muss ein Fehlerdialog mit Fallback-Link zur Originalseite angezeigt werden. | Mittel | v1.0.1 |
--- a/build-bookmarklet.sh
+++ b/build-bookmarklet.sh
@@ -24,6 +24,24 @@ echo "=== Kantine Bookmarklet Builder ($VERSION) ==="
 # Check files exist
 if [ ! -f "$CSS_FILE" ]; then echo "ERROR: $CSS_FILE not found"; exit 1; fi
 if [ ! -f "$JS_FILE" ]; then echo "ERROR: $JS_FILE not found"; exit 1; fi
 # Generate favicon.png from favicon_base.png if base exists
 FAVICON_BASE="$SCRIPT_DIR/favicon_base.png"
 if [ -f "$FAVICON_BASE" ]; then
    echo "Generating 32x32 favicon.png from favicon_base.png..."
    python3 -c "
 import sys
 from PIL import Image
 try:
    img = Image.open('$FAVICON_BASE')
    img_resized = img.resize((32, 32), Image.Resampling.LANCZOS)
    img_resized.save('$FAVICON_FILE')
 except Exception as e:
    print('Favicon generation error:', e)
    sys.exit(1)
 "
 fi
 if [ ! -f "$FAVICON_FILE" ]; then echo "ERROR: $FAVICON_FILE not found"; exit 1; fi
 # Generate favicon Base64 data URI from PNG
@@ -128,8 +146,25 @@ cat > "$DIST_DIR/install.html" << INSTALLEOF
    </style>
 </head>
 <body>
    <!-- Banner Video: plays once, collapses after ending -->
    <div id="banner-video-wrap" style="width: 100%; max-width: 600px; margin: 0 auto 20px auto; border-radius: 12px; overflow: hidden; pointer-events: none; user-select: none; max-height: 400px; opacity: 1; transition: max-height 0.8s ease-in-out, opacity 0.6s ease-in-out, margin 0.8s ease-in-out;">
        <video id="banner-video" autoplay muted playsinline disablepictureinpicture style="width: 100%; display: block;" src="https://github.com/TauNeutrino/kantine-overview/raw/main/dist/Arrow_and_fork_fly_away_bd43310bea.mp4"></video>
    </div>
    <script>
        document.getElementById('banner-video').addEventListener('ended', function() {
            var w = document.getElementById('banner-video-wrap');
            w.style.maxHeight = '0';
            w.style.opacity = '0';
            w.style.marginBottom = '0';
        });
    </script>
    <div style="text-align: center; margin-bottom: 30px;">
-        <h1 style="margin-bottom: 5px;">🍽️ Kantine Wrapper <span style="font-size:0.5em; opacity:0.6; font-weight:400; vertical-align:middle; margin-left:10px;">$VERSION</span></h1>
+        <h1 style="margin-bottom: 5px; display: flex; align-items: center; justify-content: center; gap: 10px;">
            <img src="$FAVICON_URL" alt="Logo" style="width: 38px; height: 38px;"> 
            Kantine Wrapper 
            <span style="font-size:0.5em; opacity:0.6; font-weight:400; margin-left:5px;">$VERSION</span>
        </h1>
        <p style="font-size: 1.2rem; color: #a0aec0; margin-top: 0; font-style: italic;">"Mahlzeit! Jetzt bessa einfach."</p>
    </div>
@@ -243,13 +278,16 @@ $CHANGELOG_HTML
 EOF
 cat >> "$DIST_DIR/install.html" << INSTALLEOF
-        // Dynamic favicon injection (overrides proxy defaults like htmlpreview.github.io)
+        // Dynamic favicon injection — setTimeout ensures it runs AFTER
        // htmlpreview.github.io's document.write() processing completes
        setTimeout(function() {
            document.querySelectorAll('link[rel*="icon"]').forEach(function(el) { el.remove(); });
            var fi = document.createElement('link');
            fi.rel = 'icon';
            fi.type = 'image/png';
            fi.href = '$FAVICON_URL';
            document.head.appendChild(fi);
        }, 0);
        document.getElementById('bookmarklet-link').textContent = 'Kantine $VERSION';
    </script>
 </body>
--- a/changelog.md
+++ b/changelog.md
@@ -1,88 +1,28 @@
-## v1.4.27
+## v1.6.2 (2026-03-05)
- 🔧 **Build**: Favicon wird jetzt sauber aus `favicon.png` per Build-Script als PNG-Base64-Data-URI generiert und über `{{FAVICON_DATA_URI}}` Platzhalter in `kantine.js` + `install.html` injiziert. Funktioniert auf allen Browsern und Proxy-Diensten.
+- ✨ **Feature**: Wochentags-Header (Montag, Dienstag etc.) scrollen nun als "Sticky Header" mit und bleiben am oberen Bildschirmrand haften.
  - Das Layout clippt scrollende Speisen ordentlich darunter weg.
  - Vollständiges Viewport-Scrolling: Das Layout nutzt nun die ganze Höhe aus (`100dvh`), wodurch Scrollbalken sauber am Rand positioniert sind.
 - 🐛 **Bugfix**: Probleme mit Bessa's default `overflow` Verhalten behoben, das `position: sticky` auf iOS/WebKit-Browsern blockierte.
-## v1.4.26
+## v1.6.0 (2026-03-04)
- 🎨 **Favicon**: Von SVG-Base64 auf PNG-Datei (`favicon.png`) umgestellt, verlinkt via raw.githubusercontent.com. Funktioniert zuverlässig auf allen Browsern und Proxy-Diensten (htmlpreview.github.io).
+- ✨ **Feature**: Sprachfilter für zweisprachige Menübeschreibungen. Neuer DE/EN/ALL Toggle im Header ermöglicht das Umschalten zwischen Deutsch, Englisch und dem vollen Originaltext. Allergen-Codes werden in allen Modi angezeigt. Einstellung wird persistent gespeichert.
-## v1.4.25
+## v1.5.1 (2026-03-04)
- 🐛 **Bugfix**: Favicon wird in `install.html` jetzt zusätzlich per JavaScript injiziert, um Proxy-Dienste wie htmlpreview.github.io zu überschreiben. Release-Script pusht nun auch `main` Branch zu GitHub.
+- 🐛 **Bugfix**: Freitagsbestellungen schlugen fehl ("Onlinebestellung sind nicht verfügbar"). Ursache: Der Order-Payload verwendete `preorder: false` und eine falsche Uhrzeit (`T10:00:00.000Z` statt `T10:30:00Z`). Beides wurde anhand der originalen Bessa-API korrigiert.
-## v1.4.24
+## v1.5.0 (2026-02-26)
- 🐛 **Bugfix**: Favicon-Encoding korrigiert – `encodeURIComponent` verursachte doppeltes Encoding der Farbcodes (`%23` → `%2523`). Auf Base64 umgestellt, funktioniert nun auch unter Chrome/Windows.
+Das große "Quality of Life"-Update! Zusammenfassung aller Features und Fixes seit v1.4.0:
-## v1.4.23
+- ✨ **Bestellhistorie**: Übersichtliche Historie direkt in der App – gruppiert nach Jahr/Monat, inklusive Summen, Stati (Offen/Abgeschlossen/Storniert) und Delta-Cache für rasantes Laden.
- 🐛 **Bugfix**: Favicon wird jetzt beim Ausführen des Bookmarklets in die Seite injiziert (ersetzt das Bessa-Favicon im Tab). Chrome cached das Icon und übernimmt es anschließend auch in die Lesezeichenleiste.
+- ⚡ **Smart Cache & Performance**: Massive Reduzierung von API-Calls und Ladezeiten durch intelligenten lokalen Cache. Das Bookmarklet startet nun praktisch verzögerungsfrei.
 - 🔄 **GitHub Release Management**: In-App Versions-Menü mit Auto-Update Check (`🆕` Icon). Umschalten zwischen "Stable" und "Dev" Versionen sowie Downgrade-Möglichkeit direkt über die GitHub API.
 - 🌟 **Smart Highlights & UX**: Speisen-Favoriten leuchten nun im Design-Violett und erhalten Feature-Badges. Der Bestell-Badge für nächste Woche filtert nun intelligent personalisierte Highlights voraus.
 - 🔔 **Bestell-Warnung & Notifications**: Der System-Alarm berücksichtigt nun Sessions korrekt, zeigt dynamische Farbwechsel (gelb/grün/rot) und warnt verlässlich vor dem Bestellschluss (10:00 Uhr). Altlasten von Vortagen werden automatisch geputzt.
 - 🎨 **Eigenes Favicon**: Das Bookmarklet und der Installer haben nun ein eigenes Icon (Dreieck mit Besteck), das beim Hineinziehen in die Lesezeichenleiste übernommen wird (dynamisch generiert als lokales PNG).
 - 🧹 **Lokaler Cache-Clear**: Ein in das Versions-Menü eingebauter "Papierkorb", der ausschließlich fehlerhafte Kantinen-Caches putzt, ohne dabei versehentlich die aktive Bessa-Host-Session zu zerstören.
 - 🔒 **Sitzungs-Persistenz**: Die Login-Session überdauert jetzt neue Tabs, Fenster und Version-Upgrades reibungslos durch den Wechsel auf `localStorage`.
 - 🛡️ **Testing & Stabilität**: Vollautomatische DOM- und Logik-Testing-Suites in der Release-Pipeline integriert. Fehlerhafte UI-Buttons gehören der Vergangenheit an.
 ## v1.4.22
 - 📝 **Docs**: Vollständiger Dokumentations-Audit: README.md um fehlende Dateien (favicon.svg, release.sh, Tests) und Features (Bestellhistorie, Version-Menü, Cache leeren, Favicon) ergänzt. REQUIREMENTS.md: Doppelte IDs (FR-090/091) behoben, FR-092 an dynamische Glow-Logik angepasst, FR-116 (Cache leeren) und FR-117 (Favicon) hinzugefügt, NFR-008 um DOM-Tests erweitert.
 ## v1.4.21
 - ✨ **UX**: Der Glow-Effekt des „Nächste Woche"-Buttons bleibt nun aktiv, solange Menüdaten vorhanden aber noch keine Bestellungen getätigt wurden. Verschwindet automatisch nach der ersten Bestellung.
 ## v1.4.20
 - 🐛 **Bugfix**: Der Badge-Counter im „Nächste Woche"-Tab wird jetzt sofort nach einer Bestellung oder Stornierung aktualisiert.
 ## v1.4.19
 - 🎨 **Feature**: Eigenes Favicon für die Installer-Seite hinzugefügt (Dreieck + Gabel & Messer). Wird beim Drag & Drop in die Lesezeichenleiste als Icon übernommen.
 ## v1.4.18
 - 🧪 **Testing**: Die automatische DOM-Testing Suite (`test_dom.js`) wurde massiv ausgebaut. Sie prüft nun neben der Alarmglocke und den Highlights auch systematisch alle anderen UI-Komponenten (Login-Modal, History-Modal, Versionen-Modal, Theme-Toggle, und Navigation Tabs) auf korrekte Event-Listener-Bindungen, um Regressionen (tote Buttons) endgültig auszuschließen.
 ## v1.4.17
 - 🐛 **Bugfix**: Regression behoben: Der "Persönliche Highlights" (Stern-Button) Dialog öffnet sich nun wieder korrekt.
 - 🧪 **Testing**: Es wurde ein initialer UI-Testing-Hook (`test_dom.js` mit `jsdom`) in die Build-Pipeline integriert, um kritische DOM Event-Listener Regressionen (wie den Highlights-Button und die Alarmglocke) automatisch zu preventen.
 ## v1.4.16
 - ⚡ **Feature**: Ein Button "Lokalen Cache leeren" wurde zum Versionen-Menü hinzugefügt, um bei hartnäckigen lokalen Fehlern alle Caches und Sessions bereinigen zu können, ohne die Entwicklertools (F12) des Browsers bemühen zu müssen.
 ## v1.4.15
 - 🧹 **Bugfix**: In der Vergangenheit gesetzte Alarme/Flags wurden nicht zuverlässig gelöscht. Dies ist nun behoben, sodass verfallene Menüs nach 10:00 Uhr bzw. an vergangenen Tagen automatisch aus dem Tracker verschwinden.
 ## v1.4.14
 - 🐛 **Bugfix**: Alarmglocke versteckt sich jetzt zuverlässig auch auf Endgeräten mit CSS Konflikten 
 - 🚀 **Feature**: Sofortige API-Aktualisierung (Refresh) bei Aktivierung eines Menüalarms
 - ⚡ **Optimierung**: "Unbekannt" im letzten Refresh-Zeitpunkt wird abgefangen und zeigt initial "gerade eben"
 ## v1.4.13 (2026-02-24)
 - **Fix**: Die Farben der Glocke funktionieren nun verlässlich, da CSS-Variablen durch direkte Hex-Codes ersetzt wurden.
 ## v1.4.12 (2026-02-24)
 - **Fix**: Das Glocken-Icon sollte nun endgültig versteckt bleiben, wenn keine Benachrichtigungen aktiv sind (CSS-Kollision mit `.hidden` behoben).
 ## v1.4.11 (2026-02-24)
 - **Feature**: Das Versionsmenü prüft nun im Hintergrund direkt beim Öffnen nach neuen Versionen und aktualisiert die Liste automatisch, selbst wenn eine veraltete Liste noch im Cache liegt.
 ## v1.4.10 (2026-02-24)
 - **Fix**: Die Farben der Benachrichtigungs-Glocke wurden korrigiert: Sie ist nun gelb, während man auf ein Menü wartet, und wird grün, sobald eines verfügbar ist.
 ## v1.4.9 (2026-02-24)
 - **Fix**: Das Glocken-Icon für Benachrichtigungen wird nun direkt beim Start (wenn Daten aus dem lokalen Cache geladen werden) korrekt angezeigt.
 ## v1.4.8 (2026-02-24)
 - **Fix**: Die Benachrichtigungs-Glocke wird nun korrekt in Gelb dargestellt, wenn beobachtete Menüs verfügbar sind.
 - **Tools**: Fehler in Testskript behoben, der den CI/CD Build verlangsamt hat.
 ## v1.4.7 (2026-02-24)
 - **Performance**: Die Bestellhistorie nutzt nun einen inkrementellen Delta-Cache anstatt immer alle Seiten von der API herunterzuladen, was die Ladezeiten für Vielbesteller enorm reduziert.
 ## v1.4.6 (2026-02-24)
 - **Fix**: Die Umrandung für bereits bestellte Menüs der vergangenen Tage ist nun ebenfalls einheitlich violett statt blau.
 ## v1.4.5 (2026-02-24)
 - **Fix**: Doppelten Scrollbalken in der Versionen-Liste entfernt.
 ## v1.4.4 (2026-02-24)
 - **Feature**: Das Versionsmenü enthält nun direkte Links zu GitHub, um Fehler zu melden oder neue Features vorzuschlagen.
 ## v1.4.3 (2026-02-24)
 - **Fix**: Der Rahmen des "Heute Bestellt" Menüs ist nun konsequent violett (passend zum Glow-Effekt).
 ## v1.4.2 (2026-02-23)
 - **Fix**: Das "Heute Bestellt" Menü leuchtet nun stimmig im Design-Violett statt Blau.
 - **Fix**: Abfangen des GitHub API Rate Limit (403) im Versionsdialog mit einer freundlicheren Fehlermeldung, da der User-Agent im Browser nicht manuell gesetzt werden darf.
 ## v1.4.1 (2026-02-22)
 - **UX Verbesserungen**: Bestellhistorie gruppiert nach Jahren und Monaten mittels einklappbarem Akkordeon. Monatssummen integriert und Stati farblich abgehoben (Offen, Abgeschlossen, Storniert).
 ## v1.4.0 (2026-02-22)
 - **Feature**: Bestellhistorie per Knopfdruck abrufbar. Übersichtliche Darstellung, gruppiert nach Monaten und Kalenderwochen, inklusive Stornos. 📜✨
--- a/dist/Arrow_and_fork_fly_away_bd43310bea.mp4
+++ b/dist/Arrow_and_fork_fly_away_bd43310bea.mp4
--- a/dist/bookmarklet-payload.js
+++ b/dist/bookmarklet-payload.js
--- a/dist/bookmarklet.txt
+++ b/dist/bookmarklet.txt
--- a/dist/install.html
+++ b/dist/install.html
--- a/dist/kantine-standalone.html
+++ b/dist/kantine-standalone.html
@@ -67,12 +67,22 @@ body {
 }
 /* Fix scrolling bug: Reset html/body styles from host page */
-html,
+/* IMPORTANT: html must NOT have overflow set, or it creates a scroll container that breaks position: sticky */
 html {
    height: auto !important;
    min-height: 100% !important;
    overflow: visible !important;
    position: static !important;
    margin: 0 !important;
    padding: 0 !important;
 }
 body {
    height: auto !important;
    min-height: 100% !important;
-    overflow-y: auto !important;
+    overflow-x: clip !important;
-    overflow-x: hidden !important;
+    /* clip prevents horizontal overflow without breaking sticky */
    overflow-y: visible !important;
    position: static !important;
    margin: 0 !important;
    padding: 0 !important;
@@ -80,8 +90,7 @@ body {
 /* Header */
 .app-header {
-    position: sticky;
+    flex-shrink: 0;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background-color: var(--header-bg);
@@ -164,6 +173,38 @@ body {
    color: var(--text-secondary);
 }
 /* Language Toggle (FR-100) */
 .lang-toggle {
    display: inline-flex;
    gap: 0;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
 }
 .lang-btn {
    padding: 3px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
 }
 .lang-btn:hover {
    color: var(--text-primary);
    background: rgba(100, 116, 139, 0.1);
 }
 .lang-btn.active {
    background: var(--accent-color);
    color: white;
 }
 .nav-group {
    display: flex;
    background-color: var(--bg-card);
@@ -391,13 +432,21 @@ body {
    font-size: 18px;
 }
-/* Container */
+/* Container - flex column, full width so child scrollbar is at edge */
 .container {
    flex: 1;
    width: 100%;
-    /* Full width */
+    overflow: hidden;
-    margin: 2rem auto;
+    padding: 2rem 0 0 0;
-    padding: 0 2rem;
+    /* Only top padding, no horizontal so child fills width */
-    min-height: 80vh;
+    display: flex;
    flex-direction: column;
 }
 /* Add horizontal padding to direct children of container to maintain layout */
 .container>*:not(.menu-grid) {
    padding-left: 2rem;
    padding-right: 2rem;
 }
 /* Banner */
@@ -746,14 +795,17 @@ body {
    display: none !important;
 }
-/* Menu Grid */
+/* Menu Grid Container */
 .menu-grid {
-    display: grid;
+    display: flex;
-    gap: 2rem;
+    flex-direction: column;
    flex: 1;
    overflow: hidden;
    gap: 1rem;
 }
 .week-section {
-    margin-bottom: 3rem;
+    margin-bottom: 2rem;
 }
 .week-header {
@@ -775,10 +827,25 @@ body {
    margin-top: 0.25rem;
 }
 /* Full-viewport layout: header + scrollable content + footer */
 #kantine-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    /* Dynamic viewport height for mobile browsers */
    overflow: hidden;
 }
 .days-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    flex: 1;
    overflow-y: auto;
    /* This is the scroll container at the window edge */
    align-content: start;
    padding: 0 2rem 2rem 2rem;
 }
 /* Card */
@@ -787,21 +854,33 @@ body {
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
-    overflow: hidden;
+    overflow: clip;
-    transition: transform 0.2s ease, box-shadow 0.2s ease;
+    /* Clips scrolling content behind sticky header */
    transition: box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
 }
-/* Past Day Styling - Target specific elements so ordered items can remain visible */
+/* Past Day Styling - Target specific elements so ordered items can remain visible AND preserve sticky context */
-.menu-card.past-day .card-header,
+/* We MUST apply filter/opacity to children, not the parent .menu-card, or else position: sticky breaks */
 /* Header keeps fully opaque background to hide scrolling items, only grayscales */
 .menu-card.past-day .card-header {
    filter: grayscale(0.8);
    transition: filter 0.3s;
 }
 /* Items become semi-transparent */
 .menu-card.past-day .menu-item:not(.ordered) {
    opacity: 0.6;
    filter: grayscale(0.8);
    transition: opacity 0.3s, filter 0.3s;
 }
-.menu-card.past-day:hover .card-header,
+.menu-card.past-day:hover .card-header {
    filter: grayscale(0.4);
 }
 .menu-card.past-day:hover .menu-item:not(.ordered) {
    opacity: 0.8;
    filter: grayscale(0.4);
@@ -848,7 +927,6 @@ body {
 .menu-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
 }
@@ -858,7 +936,23 @@ body {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
-    background-color: rgba(100, 116, 139, 0.05);
+    background-color: var(--bg-card);
    /* Removed border-radius: 12px 12px 0 0;
       .menu-card's overflow: clip will round the corners initially.
       When sticky at the top, it will be square and perfectly hide scrolling content! */
    /* Sticky within .container scroll area */
    position: sticky;
    top: 0;
    z-index: 90;
 }
 .card-body {
    padding: 1.25rem;
    display: grid;
    grid-template-rows: auto;
    align-content: start;
 }
 .day-name {
@@ -871,13 +965,6 @@ body {
    color: var(--text-secondary);
 }
 .card-body {
    padding: 1.25rem;
    display: grid;
    grid-template-rows: auto;
    /* Each menu item gets its own row */
    align-content: start;
 }
 .empty-state {
    color: var(--text-secondary);
@@ -924,6 +1011,7 @@ body {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
    white-space: pre-wrap;
 }
 .badges {
@@ -1005,12 +1093,12 @@ body {
 /* Footer */
 .app-footer {
    flex-shrink: 0;
    text-align: center;
-    padding: 2rem;
+    padding: 1rem 2rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
 }
 /* === Order / Cancel Buttons (inline in status row) === */
@@ -1341,17 +1429,20 @@ body {
 /* Day Header Status Colors (User Request) */
 .card-header.header-violet {
-    background-color: rgba(139, 92, 246, 0.15);
+    background-color: var(--bg-card);
    background-image: linear-gradient(rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.15));
    border-bottom: 2px solid #8b5cf6;
 }
 .card-header.header-green {
-    background-color: rgba(16, 185, 129, 0.15);
+    background-color: var(--bg-card);
    background-image: linear-gradient(rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.15));
    border-bottom: 2px solid var(--success-color);
 }
 .card-header.header-red {
-    background-color: rgba(239, 68, 68, 0.15);
+    background-color: var(--bg-card);
    background-image: linear-gradient(rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.15));
    border-bottom: 2px solid var(--error-color);
 }
@@ -1979,11 +2070,12 @@ body {
    let currentWeekNumber = getISOWeek(new Date());
    let currentYear = new Date().getFullYear();
    let displayMode = 'this-week';
-    let authToken = sessionStorage.getItem('kantine_authToken');
+    let authToken = localStorage.getItem('kantine_authToken');
-    let currentUser = sessionStorage.getItem('kantine_currentUser');
+    let currentUser = localStorage.getItem('kantine_currentUser');
    let orderMap = new Map();
    let userFlags = new Set(JSON.parse(localStorage.getItem('kantine_flags') || '[]'));
    let pollIntervalId = null;
    let langMode = localStorage.getItem('kantine_lang') || 'de';
    // === API Helpers ===
    function apiHeaders(token) {
@@ -2007,7 +2099,7 @@ body {
        const favicon = document.createElement('link');
        favicon.rel = 'icon';
        favicon.type = 'image/png';
-        favicon.href = 'data:image/png;base64,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';
+        favicon.href = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAKQUlEQVR4nKVXa3RVxRX+9sw5uY/khjwgECAJiCFUQhMSCFZKAYMWBQSDRVsUrcXLy4hg2yA0XgLKqjzEmPAIFIggahFs1YovRCh2iYXQgkQUyiNAgBBCgCQ3955zZnZ/hNRGoau0e635MXtmP8737Zl9hvB/CBGBmQkA/0vJTJg7l/41792b2hhVVrbONYqK9P8UFwClpaV1S05O/tVVnfhfHLU6u1GRRKSioqJeamhoyM/Ozv5eRUXF11eTUBnr1nVrlpJE6LJpMVwkZAQ0uxw4LotEBJGIEG4zytdsHTjkf7zSuMHgAoBOTk7uVVNTMzEhIYErKyuXGoZxl5ORIaiiQgVVaMgZ21qjLEcTswEpQUQAETQY0A7I9MIJBp8BUHmj0JFpmlxVVbVw6O1DPdu3f+xYljU8ISFhFCoqbPZnm0cmTin3KT2VXBGGA2Zt26wsix0rrHUopNkKh1VjUIXAl1u/6D/Lpk0SLYUmAaiuXbsOE1KMmhsIqN6908WkSX4+c+bMEmZ2Y1WFgt9v1kyZUdZe82TDjFAQpEEEBgQIAgwJAWmwEP85gUCgZW3cOAUixuDBxMzy+PHjiyc89BBycgbAcWz53HMLdIeEDqk+n2+6EEJj1Srm4mLXqUlPlMWCF8HjkSAoAQKhhQoCQRAzAFy7BpgJRDp99eqO58lam9TYMKXiyVknYxMS8n0+X8a8+fOVbdvStm3ExsaKuYG5etq0abMfffSBDWvXpJ0DTXd6li3rfxrOeLZsTSAB1gpEktFS+ay0c20EAgGBuXPlzWtW3NLHq5Xl2MGvvd6D499+PetSbe3P5zxTyEldk8g0TXi9XgCgqVOnck5OTvS6l994QVKRvnn54r7VUFttRjI7Dhgg9ngkiEAEJhCEkC1FdT0G2q9cWhKWxqgr7Tr2iGusKalvCI6dYXq+eDL3ztwt773HVSdOUDgURkxsDPr368dkSNw/+t5LGU89Pv7LXmmrbaW6kG07TEJKQRQlxOZGpe7TDCW8HhndHJpyftrMld9Q0AI7p61Y0e2S6cza1bnH9P4nj6R5L587tckbP3iN2zfsNZeZG7WvQkc3BsWgQT9Cu+honD17Fh9u28ZXai+Ih+fM3lWeGLdMgrqQ5TgMIun1UJxtP1UzefoLHVcWT6snKtUMJiHsb1FAQCAgkoSoDztqSL/qox/ZU568MxS29k0IXvxi4YCBSU92TuKFF6pFVv5kDL/jDnRKTMTwu+/CyuUrRGFJMXb16n6PJtGdwiHNgoTwumW8Zc08O3n6C6o433V28vRl8VpPFB432d9E/U7xceDtMm9xjXUwGAqdCQ/MnXbbof2fV1sh14yMbJ65Yxt53W6sTO6BK1WncaW+HjcP6IfnLp7H36uq4PZ6NRMJckUgxrZm1kyZuZQDAQNFRQqBgERRkZO4fGmBacgLJ/1PrLnu8Xtw+fIElCz6qt/G8mBDY4OTvXEdY0GAfSuWMhbN41ePfc3MzJdYc/r63zEWPcve0iU6omSxQsnCYOLS5wuoxZ/xbf8EIPDJJ+7rFuHgTwLGzqFFzuxlL41Y7zb+FCUNTYLEySuXIaVEY3MQW8eMw5CuKch8ZS2+qruAqEgvLNtmm4hKhwy7+Ef/lMMfHfhiGjc1/Y2ICID+9yRaO+G1LiLaObRIR3ftGvfm4qVlbw29ky0p6FD1aTSFw7jS1AQNwutHvoIhJQr63wohJWzbgaUVFab1xtQ+feNy88beimDwebfb1Xr0v5GW4HS9BISUUjdUV8+KbN++S1b3HnrNLRmUn9UPo29OxaTMbMRFelH+9wqMeWcLHknPwBsjxwChZqy/Zyx6Vp3GocNf88i777YBDOvUKfEBAAotV3mbirsW+gIA5eXlpQJoHjNmtFLMes6sAlaNjdwq208eZ2/JIsai+Tzw9fXcYIX5WH0dMzNveGUDb9v2EdfV1SkAWkhx2u/3t2v1fa2AbeA3DIO3bt26sHOXzm6fz8fETGxI1DYHAQCL9n6Gvgmd8Pbo++CKiMBfTlUh59VyCGpxFXYcuFxuXLhwQdx113DVJz29y7p16+ZKKfW1EP93hQSgEhIScpVSY15+uVzV19dLIkL7+PaoOXYMvz2wD79+/10M2bwRtyV2waYRYxBhmDhUV4cBr5bjQH0dms6eQ2paGvbv34/MzExZVlambNt+PCsrK/NaVLQmQADAzPLMmTOLJzw8AcNy74BlO9i+4xPkP+bHkqqjeHr7B2gXH4/9586i78Z1uKdHKjbcPQqCGedDIQz5/QZ4BuagY4cOePX3ryM9PZ0GDLgVI0eOMPbs2fOSyxVxTc4BQBCRiomJ+UVsbGzm/HnzlNZajn9wPHa9/wFKq09gfdUx+EwXHK0hDBOP3NIHYaUxruct2PLAeESYJhrCYTx16CBW7/sreiYmYviIEdBay5LSUhUZGTkoOrrdI0TUBoXWwuAFCxbEXr58ed7sObN1YmJnspXChAcfQv3tgzDjnT8g0uOBZo2m5mbMSc/ArKwcmEKgtq4OMQe/wozkboAQsJpD8O/8GEn+RxHXLga2UuiW0o0KC3+ja2trny8oKIhHywkQrdAbUkpHGGJx95TuTx2sPOiAyDClgcLP/oxnd/8FUS43lFawtMbvRo1ByqEjeHfHTnjcLrDWSEpJwaTH/Hjl+BE89OYmRLk9aAwFMfsHg/DcbYOhlIJmrfpm9pWHDx9excyTHMeRABQBoP79+6fu2bPnwJY3t5h59+YRAHrmsz9j/qc7EeWJhNIKzY4Df6fOeDwtHX2ys7/D5drychz8fDfifnY/Cnd/iihPJBpDQUzMzELZ7cMhhMDH27erYbm5okePHgOPHj36GQBJpmnCcZzNeWPz8ja/sdkBs1n4+ad49tOd8Hm9sGxbhVnTaw88iB9cDuLpeUUQROjYsRNcLhcu1l/EhdpaJKekwD9pEnr1TEPZPw5h8rtvIUqaaGwOitG9vof1d4xAtNvj5D+RL0pLSvcxcw4REXVJ6ZJXXVW95dezCjDizh9jd7SHCz7+kHyRkVCOYiM6iqYmJiH7YgOUaYKY8eWXX+LEieMIhcKIj49DWq9euKn7TbAsC1caG9HOFYFdMV6sPHUSZtjSV5oaRW5qT17Suy99+NZbeHr2HET7fL+sr69fQvHx8e83h0I3BZua1NifjnNX5o3sdvjUKccd4RJhZuFP7bX7/NKSuC0ffNjmFnO5XSAScBwbju18h5JHfnIf47EJ1obDh9O9zLrBkOIx03Np7cQp50yPW7hcrvpBPxw0EsXFxS5mFsxsMLOrQ9mL272vrOaoNcu48+qXCq9GNZhZXt333wx51UYklL1YGlm+gmNWvhgeuGXDrcws9jKbe/fuNQcPHvzdn+IRG5fHdt2wKr/7qpKRV/u5aOmmNyatNgJA6stlw9JXL/v+dffimybRNlLr26Dtvv92fNs3rj5w2ugNtG2LDGbCjh0StbWMceNUm7UblxabTZskKisZRLqNHsA/AQoXyB/6HdQ3AAAAAElFTkSuQmCC';
        document.head.appendChild(favicon);
        // Inject Google Fonts if not already present
@@ -2031,18 +2123,23 @@ body {
                    <div class="brand">
                        <span class="material-icons-round logo-icon">restaurant_menu</span>
                        <div class="header-left">
-                            <h1>Kantinen Übersicht <small class="version-tag" style="font-size: 0.6em; opacity: 0.7; font-weight: 400; cursor: pointer;" title="Klick für Versionsmenü">v1.4.27</small></h1>
+                            <h1>Kantinen Übersicht <small class="version-tag" style="font-size: 0.6em; opacity: 0.7; font-weight: 400; cursor: pointer;" title="Klick für Versionsmenü">v1.6.2</small></h1>
                            <div id="last-updated-subtitle" class="subtitle"></div>
                        </div>
                        <div class="nav-group" style="margin-left: 1rem;">
-                            <button id="btn-this-week" class="nav-btn active">Diese Woche</button>
+                            <button id="btn-this-week" class="nav-btn active" title="Menü dieser Woche anzeigen">Diese Woche</button>
-                            <button id="btn-next-week" class="nav-btn">Nächste Woche</button>
+                            <button id="btn-next-week" class="nav-btn" title="Menü nächster Woche anzeigen">Nächste Woche</button>
                        </div>
                        <button id="alarm-bell" class="icon-btn hidden" aria-label="Benachrichtigungen" title="Keine beobachteten Menüs" style="margin-left: -0.5rem;">
                            <span class="material-icons-round" id="alarm-bell-icon" style="color:var(--text-secondary); transition: color 0.3s;">notifications</span>
                        </button>
                    </div>
                    <div class="header-center-wrapper">
                        <div id="lang-toggle" class="lang-toggle" title="Sprache der Menübeschreibung">
                            <button class="lang-btn${langMode === 'de' ? ' active' : ''}" data-lang="de">DE</button>
                            <button class="lang-btn${langMode === 'en' ? ' active' : ''}" data-lang="en">EN</button>
                            <button class="lang-btn${langMode === 'all' ? ' active' : ''}" data-lang="all">ALL</button>
                        </div>
                        <div id="header-week-info" class="header-week-info"></div>
                        <div id="weekly-cost-display" class="weekly-cost hidden"></div>
                    </div>
@@ -2056,17 +2153,17 @@ body {
                        <button id="btn-highlights" class="icon-btn" aria-label="Persönliche Highlights verwalten" title="Persönliche Highlights verwalten">
                            <span class="material-icons-round">label</span>
                        </button>
-                        <button id="theme-toggle" class="icon-btn" aria-label="Toggle Theme">
+                        <button id="theme-toggle" class="icon-btn" aria-label="Toggle Theme" title="Erscheinungsbild (Hell/Dunkel) wechseln">
                            <span class="material-icons-round theme-icon">light_mode</span>
                        </button>
-                        <button id="btn-login-open" class="user-badge-btn icon-btn-small">
+                        <button id="btn-login-open" class="user-badge-btn icon-btn-small" title="Mit Bessa.app Account anmelden">
                            <span class="material-icons-round">login</span>
                            <span>Anmelden</span>
                        </button>
                        <div id="user-info" class="user-badge hidden">
                            <span class="material-icons-round">person</span>
                            <span id="user-id-display"></span>
-                            <button id="btn-logout" class="icon-btn-small" aria-label="Logout">
+                            <button id="btn-logout" class="icon-btn-small" aria-label="Logout" title="Von Bessa.app abmelden">
                                <span class="material-icons-round">logout</span>
                            </button>
                        </div>
@@ -2078,7 +2175,7 @@ body {
                <div class="modal-content">
                    <div class="modal-header">
                        <h2>Login</h2>
-                        <button id="btn-login-close" class="icon-btn" aria-label="Close">
+                        <button id="btn-login-close" class="icon-btn" aria-label="Close" title="Schließen">
                            <span class="material-icons-round">close</span>
                        </button>
                    </div>
@@ -2122,7 +2219,7 @@ body {
                <div class="modal-content">
                    <div class="modal-header">
                        <h2>Meine Highlights</h2>
-                        <button id="btn-highlights-close" class="icon-btn" aria-label="Close">
+                        <button id="btn-highlights-close" class="icon-btn" aria-label="Close" title="Schließen">
                            <span class="material-icons-round">close</span>
                        </button>
                    </div>
@@ -2131,8 +2228,8 @@ body {
                            Markiere Menüs automatisch, wenn sie diese Schlagwörter enthalten.
                        </p>
                        <div class="input-group">
-                            <input type="text" id="tag-input" placeholder="z.B. Schnitzel, Vegetarisch...">
+                            <input type="text" id="tag-input" placeholder="z.B. Schnitzel, Vegetarisch..." title="Neues Schlagwort zum Hervorheben eingeben">
-                            <button id="btn-add-tag" class="btn-primary">Hinzufügen</button>
+                            <button id="btn-add-tag" class="btn-primary" title="Schlagwort zur Liste hinzufügen">Hinzufügen</button>
                        </div>
                        <div id="tags-list"></div>
                    </div>
@@ -2143,7 +2240,7 @@ body {
                <div class="modal-content history-modal-content">
                    <div class="modal-header">
                        <h2>Bestellhistorie</h2>
-                        <button id="btn-history-close" class="icon-btn" aria-label="Close">
+                        <button id="btn-history-close" class="icon-btn" aria-label="Close" title="Schließen">
                            <span class="material-icons-round">close</span>
                        </button>
                    </div>
@@ -2167,13 +2264,13 @@ body {
                <div class="modal-content">
                    <div class="modal-header">
                        <h2>📦 Versionen</h2>
-                        <button id="btn-version-close" class="icon-btn" aria-label="Close">
+                        <button id="btn-version-close" class="icon-btn" aria-label="Close" title="Schließen">
                            <span class="material-icons-round">close</span>
                        </button>
                    </div>
                    <div class="modal-body">
                        <div style="margin-bottom: 1rem;">
-                            <strong>Aktuell:</strong> <span id="version-current">v1.4.27</span>
+                            <strong>Aktuell:</strong> <span id="version-current">v1.6.2</span>
                        </div>
                        <div class="dev-toggle">
                            <label style="display:flex;align-items:center;gap:8px;cursor:pointer;">
@@ -2241,6 +2338,17 @@ body {
        const historyModal = document.getElementById('history-modal');
        const btnHistoryClose = document.getElementById('btn-history-close');
        // Language Toggle
        document.querySelectorAll('.lang-btn').forEach(btn => {
            btn.addEventListener('click', () => {
                langMode = btn.dataset.lang;
                localStorage.setItem('kantine_lang', langMode);
                document.querySelectorAll('.lang-btn').forEach(b => b.classList.remove('active'));
                btn.classList.add('active');
                renderVisibleWeeks();
            });
        });
        if (btnHighlights) {
            btnHighlights.addEventListener('click', () => {
                highlightsModal.classList.remove('hidden');
@@ -2294,8 +2402,12 @@ body {
        if (btnClearCache) {
            btnClearCache.addEventListener('click', () => {
                if (confirm('Möchtest du wirklich alle lokalen Daten (inkl. Login-Session, Cache und Einstellungen) löschen? Die Seite wird danach neu geladen.')) {
-                    localStorage.clear();
+                    // Only clear our own keys so we don't destroy the host app's (Bessa's) session
-                    sessionStorage.clear();
+                    Object.keys(localStorage).forEach(key => {
                        if (key.startsWith('kantine_')) {
                            localStorage.removeItem(key);
                        }
                    });
                    window.location.reload();
                }
            });
@@ -2409,8 +2521,8 @@ body {
                if (response.ok) {
                    authToken = data.key;
                    currentUser = employeeId;
-                    sessionStorage.setItem('kantine_authToken', data.key);
+                    localStorage.setItem('kantine_authToken', data.key);
-                    sessionStorage.setItem('kantine_currentUser', employeeId);
+                    localStorage.setItem('kantine_currentUser', employeeId);
                    // Fetch user name
                    try {
@@ -2419,8 +2531,8 @@ body {
                        });
                        if (userResp.ok) {
                            const userData = await userResp.json();
-                            if (userData.first_name) sessionStorage.setItem('kantine_firstName', userData.first_name);
+                            if (userData.first_name) localStorage.setItem('kantine_firstName', userData.first_name);
-                            if (userData.last_name) sessionStorage.setItem('kantine_lastName', userData.last_name);
+                            if (userData.last_name) localStorage.setItem('kantine_lastName', userData.last_name);
                        }
                    } catch (err) {
                        console.error('Failed to fetch user info:', err);
@@ -2450,10 +2562,10 @@ body {
        // Logout
        btnLogout.addEventListener('click', () => {
-            sessionStorage.removeItem('kantine_authToken');
+            localStorage.removeItem('kantine_authToken');
-            sessionStorage.removeItem('kantine_currentUser');
+            localStorage.removeItem('kantine_currentUser');
-            sessionStorage.removeItem('kantine_firstName');
+            localStorage.removeItem('kantine_firstName');
-            sessionStorage.removeItem('kantine_lastName');
+            localStorage.removeItem('kantine_lastName');
            authToken = null;
            currentUser = null;
            orderMap = new Map();
@@ -2474,13 +2586,13 @@ body {
                    if (parsed.auth && parsed.auth.token) {
                        console.log('Found existing Bessa session!');
                        authToken = parsed.auth.token;
-                        sessionStorage.setItem('kantine_authToken', authToken);
+                        localStorage.setItem('kantine_authToken', authToken);
                        if (parsed.auth.user) {
                            currentUser = parsed.auth.user.id || 'unknown';
-                            sessionStorage.setItem('kantine_currentUser', currentUser);
+                            localStorage.setItem('kantine_currentUser', currentUser);
-                            if (parsed.auth.user.firstName) sessionStorage.setItem('kantine_firstName', parsed.auth.user.firstName);
+                            if (parsed.auth.user.firstName) localStorage.setItem('kantine_firstName', parsed.auth.user.firstName);
-                            if (parsed.auth.user.lastName) sessionStorage.setItem('kantine_lastName', parsed.auth.user.lastName);
+                            if (parsed.auth.user.lastName) localStorage.setItem('kantine_lastName', parsed.auth.user.lastName);
                        }
                    }
                }
@@ -2489,9 +2601,9 @@ body {
            }
        }
-        authToken = sessionStorage.getItem('kantine_authToken');
+        authToken = localStorage.getItem('kantine_authToken');
-        currentUser = sessionStorage.getItem('kantine_currentUser');
+        currentUser = localStorage.getItem('kantine_currentUser');
-        const firstName = sessionStorage.getItem('kantine_firstName');
+        const firstName = localStorage.getItem('kantine_firstName');
        const btnLoginOpen = document.getElementById('btn-login-open');
        const userInfo = document.getElementById('user-info');
        const userIdDisplay = document.getElementById('user-id-display');
@@ -2746,7 +2858,7 @@ body {
                const monthGroup = yearGroup.months[mKey];
                html += `<div class="history-month-group">
-                    <div class="history-month-header" tabindex="0" role="button" aria-expanded="false">
+                    <div class="history-month-header" tabindex="0" role="button" aria-expanded="false" title="Klicken, um die Bestellungen für diesen Monat ein-/auszublenden">
                        <div style="display:flex; flex-direction:column; gap:4px;">
                            <span>${monthGroup.name}</span>
                            <div class="history-month-summary">
@@ -2857,7 +2969,7 @@ body {
                venue: VENUE_ID,
                states: [],
                order_state: 1,
-                date: `${date}T10:00:00.000Z`,
+                date: `${date}T10:30:00Z`,
                payment_method: 'payroll',
                customer: {
                    first_name: userData.first_name,
@@ -2865,7 +2977,7 @@ body {
                    email: userData.email,
                    newsletter: false
                },
-                preorder: false,
+                preorder: true,
                delivery_fee: 0,
                cash_box_table_name: null,
                take_away: false
@@ -3192,7 +3304,7 @@ body {
        highlightTags.forEach(tag => {
            const badge = document.createElement('span');
            badge.className = 'tag-badge';
-            badge.innerHTML = `${tag} <span class="tag-remove" data-tag="${tag}">&times;</span>`;
+            badge.innerHTML = `${tag} <span class="tag-remove" data-tag="${tag}" title="Schlagwort entfernen">&times;</span>`;
            list.appendChild(badge);
        });
@@ -3934,7 +4046,7 @@ body {
                    <div class="badges">${statusBadge}</div>
                </div>
                ${tagsHtml}
-                <p class="item-desc">${escapeHtml(item.description)}</p>`;
+                <p class="item-desc">${escapeHtml(getLocalizedText(item.description))}</p>`;
            // Event: Order
            const orderBtn = itemEl.querySelector('.btn-order');
@@ -4026,7 +4138,7 @@ body {
    // Periodic update check (runs on init + every hour)
    async function checkForUpdates() {
-        const currentVersion = 'v1.4.27';
+        const currentVersion = 'v1.6.2';
        const devMode = localStorage.getItem('kantine_dev_mode') === 'true';
        try {
@@ -4067,7 +4179,7 @@ body {
        const modal = document.getElementById('version-modal');
        const container = document.getElementById('version-list-container');
        const devToggle = document.getElementById('dev-mode-toggle');
-        const currentVersion = 'v1.4.27';
+        const currentVersion = 'v1.6.2';
        if (!modal) return;
        modal.classList.remove('hidden');
@@ -4164,6 +4276,12 @@ body {
    // === Order Countdown ===
    function updateCountdown() {
        // Only show order alarms for logged-in users
        if (!authToken || !currentUser) {
            removeCountdown();
            return;
        }
        const now = new Date();
        const currentDay = now.getDay();
        // Skip weekends (0=Sun, 6=Sat)
@@ -4228,7 +4346,7 @@ body {
            // Notification logic (One time)
            const notifiedKey = `kantine_notified_${todayStr}`;
-            if (!sessionStorage.getItem(notifiedKey)) {
+            if (!localStorage.getItem(notifiedKey)) {
                if (Notification.permission === 'granted') {
                    new Notification('Kantine: Bestellschluss naht!', {
                        body: 'Du hast heute noch nichts bestellt. Nur noch 1 Stunde!',
@@ -4237,7 +4355,7 @@ body {
                } else if (Notification.permission === 'default') {
                    Notification.requestPermission();
                }
-                sessionStorage.setItem(notifiedKey, 'true');
+                localStorage.setItem(notifiedKey, 'true');
            }
        } else {
            countdownEl.classList.remove('urgent');
@@ -4281,6 +4399,201 @@ body {
        return div.innerHTML;
    }
    // === Language Filter (FR-100) ===
    // DE stems for fallback language detection
    const DE_STEMS = [
        'mit', 'und', 'oder', 'für', 'vom', 'zum', 'zur', 'gebraten', 'kartoffel', 'gemüse', 'suppe',
        'kuchen', 'schwein', 'rind', 'hähnchen', 'huhn', 'fisch', 'nudel', 'soße', 'sosse', 'wurst',
        'kürbis', 'braten', 'sahne', 'apfel', 'käse', 'fleisch', 'pilz', 'kirsch', 'joghurt', 'spätzle',
        'knödel', 'kraut', 'schnitzel', 'püree', 'rahm', 'erdbeer', 'schoko', 'vanille', 'tomate',
        'gurke', 'salat', 'zwiebel', 'paprika', 'reis', 'bohne', 'erbse', 'karotte', 'möhre', 'lauch',
        'knoblauch', 'chili', 'gewürz', 'kräuter', 'pfeffer', 'salz', 'butter', 'milch', 'eier',
        'pfanne', 'auflauf', 'gratin', 'ragout', 'gulasch', 'eintopf', 'filet', 'steak', 'brust',
        'salami', 'schinken', 'speck', 'brokkoli', 'blumenkohl', 'zucchini', 'aubergine',
        'spinat', 'spargel', 'olive', 'mandel', 'nuss', 'honig', 'senf', 'essig', 'öl', 'brot',
        'brötchen', 'pfannkuchen', 'eis', 'torte', 'dessert', 'kompott', 'obst', 'frucht', 'beere',
        'plunder', 'dip', 'tofu', 'jambalaya'
    ];
    const EN_STEMS = [
        'with', 'and', 'or', 'for', 'from', 'to', 'fried', 'potato', 'vegetable', 'soup', 'cake',
        'pork', 'beef', 'chicken', 'fish', 'noodle', 'sauce', 'sausage', 'pumpkin', 'roast',
        'cream', 'apple', 'cheese', 'meat', 'mushroom', 'cherry', 'yogurt', 'wedge', 'sweet',
        'sour', 'dumpling', 'cabbage', 'mash', 'strawberr', 'choco', 'vanilla', 'tomat', 'cucumber',
        'salad', 'onion', 'pepper', 'rice', 'bean', 'pea', 'carrot', 'leek', 'garlic', 'chili',
        'spice', 'herb', 'salt', 'butter', 'milk', 'egg', 'pan', 'casserole', 'gratin', 'ragout',
        'goulash', 'stew', 'filet', 'steak', 'breast', 'salami', 'ham', 'bacon', 'broccoli',
        'cauliflower', 'zucchini', 'eggplant', 'spinach', 'asparagus', 'olive', 'almond', 'nut',
        'honey', 'mustard', 'vinegar', 'oil', 'bread', 'bun', 'pancake', 'ice', 'tart', 'dessert',
        'compote', 'fruit', 'berry', 'dip', 'danish', 'tofu', 'jambalaya'
    ];
    /**
     * Splits bilingual menu text into DE and EN parts.
     * Pattern per course: [DE] / [EN](ALLERGENS)
     * Max 3 courses per menu item (sanity check).
     * @param {string} text - The bilingual description text
     * @returns {{ de: string, en: string, raw: string }}
     */
    function splitLanguage(text) {
        if (!text) return { de: '', en: '', raw: '' };
        const raw = text;
        const formattedRaw = '• ' + text.replace(/\(([A-Z ]+)\)\s*(?=\S)/g, '($1)\n• ');
        // Utility to compute DE/EN score for a subset of words
        function scoreBlock(wordArray) {
            let de = 0, en = 0;
            wordArray.forEach(word => {
                const w = word.toLowerCase().replace(/[^a-zäöüß]/g, '');
                if (w) {
                    let bestDeMatch = 0;
                    let bestEnMatch = 0;
                    // Full match is better than partial string match
                    if (DE_STEMS.includes(w)) bestDeMatch = w.length;
                    else DE_STEMS.forEach(s => { if (w.includes(s) && s.length > bestDeMatch) bestDeMatch = s.length; });
                    if (EN_STEMS.includes(w)) bestEnMatch = w.length;
                    else EN_STEMS.forEach(s => { if (w.includes(s) && s.length > bestEnMatch) bestEnMatch = s.length; });
                    if (bestDeMatch > 0) de += (bestDeMatch / w.length);
                    if (bestEnMatch > 0) en += (bestEnMatch / w.length);
                    // Capitalized noun heuristic matches German text styles typically
                    if (/^[A-ZÄÖÜ]/.test(word)) {
                        de += 0.5;
                    }
                }
            });
            return { de, en };
        }
        // Heuristic sliding window to split a fragment containing "EN DE"
        // E.g., "Bratwurst with pumpkin Kirschjoghurt" => enPart: "Bratwurst with pumpkin", dePart: "Kirschjoghurt"
        function heuristicSplitEnDe(fragment) {
            const words = fragment.trim().split(/\s+/);
            if (words.length < 2) return { enPart: fragment, nextDe: '' };
            let bestK = -1;
            let maxScore = -9999;
            for (let k = 1; k < words.length; k++) {
                const left = words.slice(0, k);
                const right = words.slice(k);
                const leftScore = scoreBlock(left);
                const rightScore = scoreBlock(right);
                // left should be EN, right should be DE
                // Metric = (EN votes in left - DE votes in left) + (DE votes in right - EN votes in right)
                const score = (leftScore.en - leftScore.de) + (rightScore.de - rightScore.en);
                // Extra penalty if the split puts a low-case word as the first word of the right (DE) part
                // because a new German sentence usually starts with a capital noun.
                const rightFirstWord = right[0];
                let capitalBonus = 0;
                if (/^[A-ZÄÖÜ]/.test(rightFirstWord)) {
                    capitalBonus = 2.0;
                }
                const finalScore = score + capitalBonus;
                if (finalScore > maxScore) {
                    maxScore = finalScore;
                    bestK = k;
                }
            }
            if (bestK !== -1) {
                return {
                    enPart: words.slice(0, bestK).join(' '),
                    nextDe: words.slice(bestK).join(' ')
                };
            }
            return { enPart: fragment, nextDe: '' };
        }
        // Check if text contains the bilingual separator ' / '
        if (!text.includes(' / ')) {
            // Fallback: detect language via keyword scoring
            const words = text.toLowerCase().split(/\s+/);
            const score = scoreBlock(words);
            // No split possible – return full text for detected language, empty for other
            if (score.en > score.de) {
                return { de: '', en: formattedRaw, raw: formattedRaw };
            }
            return { de: formattedRaw, en: '', raw: formattedRaw };
        }
        // Split by ' / ' – produces alternating DE/EN fragments
        const parts = text.split(' / ');
        // Sanity check: max 3 courses means max 3 slashes → max 4 parts
        if (parts.length > 4) {
            // Too many slashes – possibly not bilingual, return as-is
            return { de: formattedRaw, en: '', raw: formattedRaw };
        }
        const deParts = [];
        const enParts = [];
        // First fragment is always DE (course 1)
        deParts.push(parts[0].trim());
        // Process remaining fragments: each contains "EN(ALLERGENS) next_DE"
        // Allergen pattern: (LETTERS_AND_SPACES) at the boundary
        const allergenRegex = /\(([A-Z ]+)\)\s*/;
        for (let i = 1; i < parts.length; i++) {
            const fragment = parts[i].trim();
            const match = fragment.match(allergenRegex);
            if (match) {
                // Split: everything before allergen + allergen = EN, after = next DE
                const allergenEnd = match.index + match[0].length;
                const enPart = fragment.substring(0, match.index).trim();
                const allergenCode = match[1];
                const nextDe = fragment.substring(allergenEnd).trim();
                enParts.push(enPart + '(' + allergenCode + ')');
                // Also append allergen to the last DE part
                if (deParts.length > 0) {
                    deParts[deParts.length - 1] = deParts[deParts.length - 1] + '(' + allergenCode + ')';
                }
                if (nextDe) {
                    deParts.push(nextDe);
                }
            } else {
                // No allergen code found!
                // If it's not the last part (or even if it is, but we highly suspect merged languages),
                // we use the heuristic to find the hidden split-point.
                const split = heuristicSplitEnDe(fragment);
                enParts.push(split.enPart);
                if (split.nextDe) {
                    deParts.push(split.nextDe);
                }
            }
        }
        return {
            de: deParts.map(p => '• ' + p).join('\n'),
            en: enParts.map(p => '• ' + p).join('\n'),
            raw: formattedRaw
        };
    }
    /**
     * Returns text filtered by the current language mode.
     * @param {string} text - The bilingual text
     * @returns {string}
     */
    function getLocalizedText(text) {
        if (langMode === 'all') return text || '';
        const split = splitLanguage(text);
        if (langMode === 'en') return split.en || split.raw;
        return split.de || split.raw; // 'de' is default
    }
    // === Bootstrap ===
    injectUI();
    bindEvents();
--- a/favicon.png
+++ b/favicon.png
--- a/favicon_base.png
+++ b/favicon_base.png
--- a/kantine.js
+++ b/kantine.js
@@ -29,11 +29,12 @@
    let currentWeekNumber = getISOWeek(new Date());
    let currentYear = new Date().getFullYear();
    let displayMode = 'this-week';
-    let authToken = sessionStorage.getItem('kantine_authToken');
+    let authToken = localStorage.getItem('kantine_authToken');
-    let currentUser = sessionStorage.getItem('kantine_currentUser');
+    let currentUser = localStorage.getItem('kantine_currentUser');
    let orderMap = new Map();
    let userFlags = new Set(JSON.parse(localStorage.getItem('kantine_flags') || '[]'));
    let pollIntervalId = null;
    let langMode = localStorage.getItem('kantine_lang') || 'de';
    // === API Helpers ===
    function apiHeaders(token) {
@@ -85,14 +86,19 @@
                            <div id="last-updated-subtitle" class="subtitle"></div>
                        </div>
                        <div class="nav-group" style="margin-left: 1rem;">
-                            <button id="btn-this-week" class="nav-btn active">Diese Woche</button>
+                            <button id="btn-this-week" class="nav-btn active" title="Menü dieser Woche anzeigen">Diese Woche</button>
-                            <button id="btn-next-week" class="nav-btn">Nächste Woche</button>
+                            <button id="btn-next-week" class="nav-btn" title="Menü nächster Woche anzeigen">Nächste Woche</button>
                        </div>
                        <button id="alarm-bell" class="icon-btn hidden" aria-label="Benachrichtigungen" title="Keine beobachteten Menüs" style="margin-left: -0.5rem;">
                            <span class="material-icons-round" id="alarm-bell-icon" style="color:var(--text-secondary); transition: color 0.3s;">notifications</span>
                        </button>
                    </div>
                    <div class="header-center-wrapper">
                        <div id="lang-toggle" class="lang-toggle" title="Sprache der Menübeschreibung">
                            <button class="lang-btn${langMode === 'de' ? ' active' : ''}" data-lang="de">DE</button>
                            <button class="lang-btn${langMode === 'en' ? ' active' : ''}" data-lang="en">EN</button>
                            <button class="lang-btn${langMode === 'all' ? ' active' : ''}" data-lang="all">ALL</button>
                        </div>
                        <div id="header-week-info" class="header-week-info"></div>
                        <div id="weekly-cost-display" class="weekly-cost hidden"></div>
                    </div>
@@ -106,17 +112,17 @@
                        <button id="btn-highlights" class="icon-btn" aria-label="Persönliche Highlights verwalten" title="Persönliche Highlights verwalten">
                            <span class="material-icons-round">label</span>
                        </button>
-                        <button id="theme-toggle" class="icon-btn" aria-label="Toggle Theme">
+                        <button id="theme-toggle" class="icon-btn" aria-label="Toggle Theme" title="Erscheinungsbild (Hell/Dunkel) wechseln">
                            <span class="material-icons-round theme-icon">light_mode</span>
                        </button>
-                        <button id="btn-login-open" class="user-badge-btn icon-btn-small">
+                        <button id="btn-login-open" class="user-badge-btn icon-btn-small" title="Mit Bessa.app Account anmelden">
                            <span class="material-icons-round">login</span>
                            <span>Anmelden</span>
                        </button>
                        <div id="user-info" class="user-badge hidden">
                            <span class="material-icons-round">person</span>
                            <span id="user-id-display"></span>
-                            <button id="btn-logout" class="icon-btn-small" aria-label="Logout">
+                            <button id="btn-logout" class="icon-btn-small" aria-label="Logout" title="Von Bessa.app abmelden">
                                <span class="material-icons-round">logout</span>
                            </button>
                        </div>
@@ -128,7 +134,7 @@
                <div class="modal-content">
                    <div class="modal-header">
                        <h2>Login</h2>
-                        <button id="btn-login-close" class="icon-btn" aria-label="Close">
+                        <button id="btn-login-close" class="icon-btn" aria-label="Close" title="Schließen">
                            <span class="material-icons-round">close</span>
                        </button>
                    </div>
@@ -172,7 +178,7 @@
                <div class="modal-content">
                    <div class="modal-header">
                        <h2>Meine Highlights</h2>
-                        <button id="btn-highlights-close" class="icon-btn" aria-label="Close">
+                        <button id="btn-highlights-close" class="icon-btn" aria-label="Close" title="Schließen">
                            <span class="material-icons-round">close</span>
                        </button>
                    </div>
@@ -181,8 +187,8 @@
                            Markiere Menüs automatisch, wenn sie diese Schlagwörter enthalten.
                        </p>
                        <div class="input-group">
-                            <input type="text" id="tag-input" placeholder="z.B. Schnitzel, Vegetarisch...">
+                            <input type="text" id="tag-input" placeholder="z.B. Schnitzel, Vegetarisch..." title="Neues Schlagwort zum Hervorheben eingeben">
-                            <button id="btn-add-tag" class="btn-primary">Hinzufügen</button>
+                            <button id="btn-add-tag" class="btn-primary" title="Schlagwort zur Liste hinzufügen">Hinzufügen</button>
                        </div>
                        <div id="tags-list"></div>
                    </div>
@@ -193,7 +199,7 @@
                <div class="modal-content history-modal-content">
                    <div class="modal-header">
                        <h2>Bestellhistorie</h2>
-                        <button id="btn-history-close" class="icon-btn" aria-label="Close">
+                        <button id="btn-history-close" class="icon-btn" aria-label="Close" title="Schließen">
                            <span class="material-icons-round">close</span>
                        </button>
                    </div>
@@ -217,7 +223,7 @@
                <div class="modal-content">
                    <div class="modal-header">
                        <h2>📦 Versionen</h2>
-                        <button id="btn-version-close" class="icon-btn" aria-label="Close">
+                        <button id="btn-version-close" class="icon-btn" aria-label="Close" title="Schließen">
                            <span class="material-icons-round">close</span>
                        </button>
                    </div>
@@ -291,6 +297,17 @@
        const historyModal = document.getElementById('history-modal');
        const btnHistoryClose = document.getElementById('btn-history-close');
        // Language Toggle
        document.querySelectorAll('.lang-btn').forEach(btn => {
            btn.addEventListener('click', () => {
                langMode = btn.dataset.lang;
                localStorage.setItem('kantine_lang', langMode);
                document.querySelectorAll('.lang-btn').forEach(b => b.classList.remove('active'));
                btn.classList.add('active');
                renderVisibleWeeks();
            });
        });
        if (btnHighlights) {
            btnHighlights.addEventListener('click', () => {
                highlightsModal.classList.remove('hidden');
@@ -344,8 +361,12 @@
        if (btnClearCache) {
            btnClearCache.addEventListener('click', () => {
                if (confirm('Möchtest du wirklich alle lokalen Daten (inkl. Login-Session, Cache und Einstellungen) löschen? Die Seite wird danach neu geladen.')) {
-                    localStorage.clear();
+                    // Only clear our own keys so we don't destroy the host app's (Bessa's) session
-                    sessionStorage.clear();
+                    Object.keys(localStorage).forEach(key => {
                        if (key.startsWith('kantine_')) {
                            localStorage.removeItem(key);
                        }
                    });
                    window.location.reload();
                }
            });
@@ -459,8 +480,8 @@
                if (response.ok) {
                    authToken = data.key;
                    currentUser = employeeId;
-                    sessionStorage.setItem('kantine_authToken', data.key);
+                    localStorage.setItem('kantine_authToken', data.key);
-                    sessionStorage.setItem('kantine_currentUser', employeeId);
+                    localStorage.setItem('kantine_currentUser', employeeId);
                    // Fetch user name
                    try {
@@ -469,8 +490,8 @@
                        });
                        if (userResp.ok) {
                            const userData = await userResp.json();
-                            if (userData.first_name) sessionStorage.setItem('kantine_firstName', userData.first_name);
+                            if (userData.first_name) localStorage.setItem('kantine_firstName', userData.first_name);
-                            if (userData.last_name) sessionStorage.setItem('kantine_lastName', userData.last_name);
+                            if (userData.last_name) localStorage.setItem('kantine_lastName', userData.last_name);
                        }
                    } catch (err) {
                        console.error('Failed to fetch user info:', err);
@@ -500,10 +521,10 @@
        // Logout
        btnLogout.addEventListener('click', () => {
-            sessionStorage.removeItem('kantine_authToken');
+            localStorage.removeItem('kantine_authToken');
-            sessionStorage.removeItem('kantine_currentUser');
+            localStorage.removeItem('kantine_currentUser');
-            sessionStorage.removeItem('kantine_firstName');
+            localStorage.removeItem('kantine_firstName');
-            sessionStorage.removeItem('kantine_lastName');
+            localStorage.removeItem('kantine_lastName');
            authToken = null;
            currentUser = null;
            orderMap = new Map();
@@ -524,13 +545,13 @@
                    if (parsed.auth && parsed.auth.token) {
                        console.log('Found existing Bessa session!');
                        authToken = parsed.auth.token;
-                        sessionStorage.setItem('kantine_authToken', authToken);
+                        localStorage.setItem('kantine_authToken', authToken);
                        if (parsed.auth.user) {
                            currentUser = parsed.auth.user.id || 'unknown';
-                            sessionStorage.setItem('kantine_currentUser', currentUser);
+                            localStorage.setItem('kantine_currentUser', currentUser);
-                            if (parsed.auth.user.firstName) sessionStorage.setItem('kantine_firstName', parsed.auth.user.firstName);
+                            if (parsed.auth.user.firstName) localStorage.setItem('kantine_firstName', parsed.auth.user.firstName);
-                            if (parsed.auth.user.lastName) sessionStorage.setItem('kantine_lastName', parsed.auth.user.lastName);
+                            if (parsed.auth.user.lastName) localStorage.setItem('kantine_lastName', parsed.auth.user.lastName);
                        }
                    }
                }
@@ -539,9 +560,9 @@
            }
        }
-        authToken = sessionStorage.getItem('kantine_authToken');
+        authToken = localStorage.getItem('kantine_authToken');
-        currentUser = sessionStorage.getItem('kantine_currentUser');
+        currentUser = localStorage.getItem('kantine_currentUser');
-        const firstName = sessionStorage.getItem('kantine_firstName');
+        const firstName = localStorage.getItem('kantine_firstName');
        const btnLoginOpen = document.getElementById('btn-login-open');
        const userInfo = document.getElementById('user-info');
        const userIdDisplay = document.getElementById('user-id-display');
@@ -796,7 +817,7 @@
                const monthGroup = yearGroup.months[mKey];
                html += `<div class="history-month-group">
-                    <div class="history-month-header" tabindex="0" role="button" aria-expanded="false">
+                    <div class="history-month-header" tabindex="0" role="button" aria-expanded="false" title="Klicken, um die Bestellungen für diesen Monat ein-/auszublenden">
                        <div style="display:flex; flex-direction:column; gap:4px;">
                            <span>${monthGroup.name}</span>
                            <div class="history-month-summary">
@@ -907,7 +928,7 @@
                venue: VENUE_ID,
                states: [],
                order_state: 1,
-                date: `${date}T10:00:00.000Z`,
+                date: `${date}T10:30:00Z`,
                payment_method: 'payroll',
                customer: {
                    first_name: userData.first_name,
@@ -915,7 +936,7 @@
                    email: userData.email,
                    newsletter: false
                },
-                preorder: false,
+                preorder: true,
                delivery_fee: 0,
                cash_box_table_name: null,
                take_away: false
@@ -1242,7 +1263,7 @@
        highlightTags.forEach(tag => {
            const badge = document.createElement('span');
            badge.className = 'tag-badge';
-            badge.innerHTML = `${tag} <span class="tag-remove" data-tag="${tag}">&times;</span>`;
+            badge.innerHTML = `${tag} <span class="tag-remove" data-tag="${tag}" title="Schlagwort entfernen">&times;</span>`;
            list.appendChild(badge);
        });
@@ -1984,7 +2005,7 @@
                    <div class="badges">${statusBadge}</div>
                </div>
                ${tagsHtml}
-                <p class="item-desc">${escapeHtml(item.description)}</p>`;
+                <p class="item-desc">${escapeHtml(getLocalizedText(item.description))}</p>`;
            // Event: Order
            const orderBtn = itemEl.querySelector('.btn-order');
@@ -2214,6 +2235,12 @@
    // === Order Countdown ===
    function updateCountdown() {
        // Only show order alarms for logged-in users
        if (!authToken || !currentUser) {
            removeCountdown();
            return;
        }
        const now = new Date();
        const currentDay = now.getDay();
        // Skip weekends (0=Sun, 6=Sat)
@@ -2278,7 +2305,7 @@
            // Notification logic (One time)
            const notifiedKey = `kantine_notified_${todayStr}`;
-            if (!sessionStorage.getItem(notifiedKey)) {
+            if (!localStorage.getItem(notifiedKey)) {
                if (Notification.permission === 'granted') {
                    new Notification('Kantine: Bestellschluss naht!', {
                        body: 'Du hast heute noch nichts bestellt. Nur noch 1 Stunde!',
@@ -2287,7 +2314,7 @@
                } else if (Notification.permission === 'default') {
                    Notification.requestPermission();
                }
-                sessionStorage.setItem(notifiedKey, 'true');
+                localStorage.setItem(notifiedKey, 'true');
            }
        } else {
            countdownEl.classList.remove('urgent');
@@ -2331,6 +2358,201 @@
        return div.innerHTML;
    }
    // === Language Filter (FR-100) ===
    // DE stems for fallback language detection
    const DE_STEMS = [
        'mit', 'und', 'oder', 'für', 'vom', 'zum', 'zur', 'gebraten', 'kartoffel', 'gemüse', 'suppe',
        'kuchen', 'schwein', 'rind', 'hähnchen', 'huhn', 'fisch', 'nudel', 'soße', 'sosse', 'wurst',
        'kürbis', 'braten', 'sahne', 'apfel', 'käse', 'fleisch', 'pilz', 'kirsch', 'joghurt', 'spätzle',
        'knödel', 'kraut', 'schnitzel', 'püree', 'rahm', 'erdbeer', 'schoko', 'vanille', 'tomate',
        'gurke', 'salat', 'zwiebel', 'paprika', 'reis', 'bohne', 'erbse', 'karotte', 'möhre', 'lauch',
        'knoblauch', 'chili', 'gewürz', 'kräuter', 'pfeffer', 'salz', 'butter', 'milch', 'eier',
        'pfanne', 'auflauf', 'gratin', 'ragout', 'gulasch', 'eintopf', 'filet', 'steak', 'brust',
        'salami', 'schinken', 'speck', 'brokkoli', 'blumenkohl', 'zucchini', 'aubergine',
        'spinat', 'spargel', 'olive', 'mandel', 'nuss', 'honig', 'senf', 'essig', 'öl', 'brot',
        'brötchen', 'pfannkuchen', 'eis', 'torte', 'dessert', 'kompott', 'obst', 'frucht', 'beere',
        'plunder', 'dip', 'tofu', 'jambalaya'
    ];
    const EN_STEMS = [
        'with', 'and', 'or', 'for', 'from', 'to', 'fried', 'potato', 'vegetable', 'soup', 'cake',
        'pork', 'beef', 'chicken', 'fish', 'noodle', 'sauce', 'sausage', 'pumpkin', 'roast',
        'cream', 'apple', 'cheese', 'meat', 'mushroom', 'cherry', 'yogurt', 'wedge', 'sweet',
        'sour', 'dumpling', 'cabbage', 'mash', 'strawberr', 'choco', 'vanilla', 'tomat', 'cucumber',
        'salad', 'onion', 'pepper', 'rice', 'bean', 'pea', 'carrot', 'leek', 'garlic', 'chili',
        'spice', 'herb', 'salt', 'butter', 'milk', 'egg', 'pan', 'casserole', 'gratin', 'ragout',
        'goulash', 'stew', 'filet', 'steak', 'breast', 'salami', 'ham', 'bacon', 'broccoli',
        'cauliflower', 'zucchini', 'eggplant', 'spinach', 'asparagus', 'olive', 'almond', 'nut',
        'honey', 'mustard', 'vinegar', 'oil', 'bread', 'bun', 'pancake', 'ice', 'tart', 'dessert',
        'compote', 'fruit', 'berry', 'dip', 'danish', 'tofu', 'jambalaya'
    ];
    /**
     * Splits bilingual menu text into DE and EN parts.
     * Pattern per course: [DE] / [EN](ALLERGENS)
     * Max 3 courses per menu item (sanity check).
     * @param {string} text - The bilingual description text
     * @returns {{ de: string, en: string, raw: string }}
     */
    function splitLanguage(text) {
        if (!text) return { de: '', en: '', raw: '' };
        const raw = text;
        const formattedRaw = '• ' + text.replace(/\(([A-Z ]+)\)\s*(?=\S)/g, '($1)\n• ');
        // Utility to compute DE/EN score for a subset of words
        function scoreBlock(wordArray) {
            let de = 0, en = 0;
            wordArray.forEach(word => {
                const w = word.toLowerCase().replace(/[^a-zäöüß]/g, '');
                if (w) {
                    let bestDeMatch = 0;
                    let bestEnMatch = 0;
                    // Full match is better than partial string match
                    if (DE_STEMS.includes(w)) bestDeMatch = w.length;
                    else DE_STEMS.forEach(s => { if (w.includes(s) && s.length > bestDeMatch) bestDeMatch = s.length; });
                    if (EN_STEMS.includes(w)) bestEnMatch = w.length;
                    else EN_STEMS.forEach(s => { if (w.includes(s) && s.length > bestEnMatch) bestEnMatch = s.length; });
                    if (bestDeMatch > 0) de += (bestDeMatch / w.length);
                    if (bestEnMatch > 0) en += (bestEnMatch / w.length);
                    // Capitalized noun heuristic matches German text styles typically
                    if (/^[A-ZÄÖÜ]/.test(word)) {
                        de += 0.5;
                    }
                }
            });
            return { de, en };
        }
        // Heuristic sliding window to split a fragment containing "EN DE"
        // E.g., "Bratwurst with pumpkin Kirschjoghurt" => enPart: "Bratwurst with pumpkin", dePart: "Kirschjoghurt"
        function heuristicSplitEnDe(fragment) {
            const words = fragment.trim().split(/\s+/);
            if (words.length < 2) return { enPart: fragment, nextDe: '' };
            let bestK = -1;
            let maxScore = -9999;
            for (let k = 1; k < words.length; k++) {
                const left = words.slice(0, k);
                const right = words.slice(k);
                const leftScore = scoreBlock(left);
                const rightScore = scoreBlock(right);
                // left should be EN, right should be DE
                // Metric = (EN votes in left - DE votes in left) + (DE votes in right - EN votes in right)
                const score = (leftScore.en - leftScore.de) + (rightScore.de - rightScore.en);
                // Extra penalty if the split puts a low-case word as the first word of the right (DE) part
                // because a new German sentence usually starts with a capital noun.
                const rightFirstWord = right[0];
                let capitalBonus = 0;
                if (/^[A-ZÄÖÜ]/.test(rightFirstWord)) {
                    capitalBonus = 2.0;
                }
                const finalScore = score + capitalBonus;
                if (finalScore > maxScore) {
                    maxScore = finalScore;
                    bestK = k;
                }
            }
            if (bestK !== -1) {
                return {
                    enPart: words.slice(0, bestK).join(' '),
                    nextDe: words.slice(bestK).join(' ')
                };
            }
            return { enPart: fragment, nextDe: '' };
        }
        // Check if text contains the bilingual separator ' / '
        if (!text.includes(' / ')) {
            // Fallback: detect language via keyword scoring
            const words = text.toLowerCase().split(/\s+/);
            const score = scoreBlock(words);
            // No split possible – return full text for detected language, empty for other
            if (score.en > score.de) {
                return { de: '', en: formattedRaw, raw: formattedRaw };
            }
            return { de: formattedRaw, en: '', raw: formattedRaw };
        }
        // Split by ' / ' – produces alternating DE/EN fragments
        const parts = text.split(' / ');
        // Sanity check: max 3 courses means max 3 slashes → max 4 parts
        if (parts.length > 4) {
            // Too many slashes – possibly not bilingual, return as-is
            return { de: formattedRaw, en: '', raw: formattedRaw };
        }
        const deParts = [];
        const enParts = [];
        // First fragment is always DE (course 1)
        deParts.push(parts[0].trim());
        // Process remaining fragments: each contains "EN(ALLERGENS) next_DE"
        // Allergen pattern: (LETTERS_AND_SPACES) at the boundary
        const allergenRegex = /\(([A-Z ]+)\)\s*/;
        for (let i = 1; i < parts.length; i++) {
            const fragment = parts[i].trim();
            const match = fragment.match(allergenRegex);
            if (match) {
                // Split: everything before allergen + allergen = EN, after = next DE
                const allergenEnd = match.index + match[0].length;
                const enPart = fragment.substring(0, match.index).trim();
                const allergenCode = match[1];
                const nextDe = fragment.substring(allergenEnd).trim();
                enParts.push(enPart + '(' + allergenCode + ')');
                // Also append allergen to the last DE part
                if (deParts.length > 0) {
                    deParts[deParts.length - 1] = deParts[deParts.length - 1] + '(' + allergenCode + ')';
                }
                if (nextDe) {
                    deParts.push(nextDe);
                }
            } else {
                // No allergen code found!
                // If it's not the last part (or even if it is, but we highly suspect merged languages),
                // we use the heuristic to find the hidden split-point.
                const split = heuristicSplitEnDe(fragment);
                enParts.push(split.enPart);
                if (split.nextDe) {
                    deParts.push(split.nextDe);
                }
            }
        }
        return {
            de: deParts.map(p => '• ' + p).join('\n'),
            en: enParts.map(p => '• ' + p).join('\n'),
            raw: formattedRaw
        };
    }
    /**
     * Returns text filtered by the current language mode.
     * @param {string} text - The bilingual text
     * @returns {string}
     */
    function getLocalizedText(text) {
        if (langMode === 'all') return text || '';
        const split = splitLanguage(text);
        if (langMode === 'en') return split.en || split.raw;
        return split.de || split.raw; // 'de' is default
    }
    // === Bootstrap ===
    injectUI();
    bindEvents();
--- a/style.css
+++ b/style.css
@@ -56,12 +56,22 @@ body {
 }
 /* Fix scrolling bug: Reset html/body styles from host page */
-html,
+/* IMPORTANT: html must NOT have overflow set, or it creates a scroll container that breaks position: sticky */
 html {
    height: auto !important;
    min-height: 100% !important;
    overflow: visible !important;
    position: static !important;
    margin: 0 !important;
    padding: 0 !important;
 }
 body {
    height: auto !important;
    min-height: 100% !important;
-    overflow-y: auto !important;
+    overflow-x: clip !important;
-    overflow-x: hidden !important;
+    /* clip prevents horizontal overflow without breaking sticky */
    overflow-y: visible !important;
    position: static !important;
    margin: 0 !important;
    padding: 0 !important;
@@ -69,8 +79,7 @@ body {
 /* Header */
 .app-header {
-    position: sticky;
+    flex-shrink: 0;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background-color: var(--header-bg);
@@ -153,6 +162,38 @@ body {
    color: var(--text-secondary);
 }
 /* Language Toggle (FR-100) */
 .lang-toggle {
    display: inline-flex;
    gap: 0;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
 }
 .lang-btn {
    padding: 3px 10px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
 }
 .lang-btn:hover {
    color: var(--text-primary);
    background: rgba(100, 116, 139, 0.1);
 }
 .lang-btn.active {
    background: var(--accent-color);
    color: white;
 }
 .nav-group {
    display: flex;
    background-color: var(--bg-card);
@@ -380,13 +421,21 @@ body {
    font-size: 18px;
 }
-/* Container */
+/* Container - flex column, full width so child scrollbar is at edge */
 .container {
    flex: 1;
    width: 100%;
-    /* Full width */
+    overflow: hidden;
-    margin: 2rem auto;
+    padding: 2rem 0 0 0;
-    padding: 0 2rem;
+    /* Only top padding, no horizontal so child fills width */
-    min-height: 80vh;
+    display: flex;
    flex-direction: column;
 }
 /* Add horizontal padding to direct children of container to maintain layout */
 .container>*:not(.menu-grid) {
    padding-left: 2rem;
    padding-right: 2rem;
 }
 /* Banner */
@@ -735,14 +784,17 @@ body {
    display: none !important;
 }
-/* Menu Grid */
+/* Menu Grid Container */
 .menu-grid {
-    display: grid;
+    display: flex;
-    gap: 2rem;
+    flex-direction: column;
    flex: 1;
    overflow: hidden;
    gap: 1rem;
 }
 .week-section {
-    margin-bottom: 3rem;
+    margin-bottom: 2rem;
 }
 .week-header {
@@ -764,10 +816,25 @@ body {
    margin-top: 0.25rem;
 }
 /* Full-viewport layout: header + scrollable content + footer */
 #kantine-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    /* Dynamic viewport height for mobile browsers */
    overflow: hidden;
 }
 .days-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    flex: 1;
    overflow-y: auto;
    /* This is the scroll container at the window edge */
    align-content: start;
    padding: 0 2rem 2rem 2rem;
 }
 /* Card */
@@ -776,21 +843,33 @@ body {
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
-    overflow: hidden;
+    overflow: clip;
-    transition: transform 0.2s ease, box-shadow 0.2s ease;
+    /* Clips scrolling content behind sticky header */
    transition: box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
 }
-/* Past Day Styling - Target specific elements so ordered items can remain visible */
+/* Past Day Styling - Target specific elements so ordered items can remain visible AND preserve sticky context */
-.menu-card.past-day .card-header,
+/* We MUST apply filter/opacity to children, not the parent .menu-card, or else position: sticky breaks */
 /* Header keeps fully opaque background to hide scrolling items, only grayscales */
 .menu-card.past-day .card-header {
    filter: grayscale(0.8);
    transition: filter 0.3s;
 }
 /* Items become semi-transparent */
 .menu-card.past-day .menu-item:not(.ordered) {
    opacity: 0.6;
    filter: grayscale(0.8);
    transition: opacity 0.3s, filter 0.3s;
 }
-.menu-card.past-day:hover .card-header,
+.menu-card.past-day:hover .card-header {
    filter: grayscale(0.4);
 }
 .menu-card.past-day:hover .menu-item:not(.ordered) {
    opacity: 0.8;
    filter: grayscale(0.4);
@@ -837,7 +916,6 @@ body {
 .menu-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
 }
@@ -847,7 +925,23 @@ body {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
-    background-color: rgba(100, 116, 139, 0.05);
+    background-color: var(--bg-card);
    /* Removed border-radius: 12px 12px 0 0;
       .menu-card's overflow: clip will round the corners initially.
       When sticky at the top, it will be square and perfectly hide scrolling content! */
    /* Sticky within .container scroll area */
    position: sticky;
    top: 0;
    z-index: 90;
 }
 .card-body {
    padding: 1.25rem;
    display: grid;
    grid-template-rows: auto;
    align-content: start;
 }
 .day-name {
@@ -860,13 +954,6 @@ body {
    color: var(--text-secondary);
 }
 .card-body {
    padding: 1.25rem;
    display: grid;
    grid-template-rows: auto;
    /* Each menu item gets its own row */
    align-content: start;
 }
 .empty-state {
    color: var(--text-secondary);
@@ -913,6 +1000,7 @@ body {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.75rem;
    white-space: pre-wrap;
 }
 .badges {
@@ -994,12 +1082,12 @@ body {
 /* Footer */
 .app-footer {
    flex-shrink: 0;
    text-align: center;
-    padding: 2rem;
+    padding: 1rem 2rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
 }
 /* === Order / Cancel Buttons (inline in status row) === */
@@ -1330,17 +1418,20 @@ body {
 /* Day Header Status Colors (User Request) */
 .card-header.header-violet {
-    background-color: rgba(139, 92, 246, 0.15);
+    background-color: var(--bg-card);
    background-image: linear-gradient(rgba(139, 92, 246, 0.15), rgba(139, 92, 246, 0.15));
    border-bottom: 2px solid #8b5cf6;
 }
 .card-header.header-green {
-    background-color: rgba(16, 185, 129, 0.15);
+    background-color: var(--bg-card);
    background-image: linear-gradient(rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.15));
    border-bottom: 2px solid var(--success-color);
 }
 .card-header.header-red {
-    background-color: rgba(239, 68, 68, 0.15);
+    background-color: var(--bg-card);
    background-image: linear-gradient(rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.15));
    border-bottom: 2px solid var(--error-color);
 }
--- a/test_logic.js
+++ b/test_logic.js
@@ -62,6 +62,7 @@ const sandbox = {
            }
            return createMockElement('query-result');
        },
        querySelectorAll: () => [createMockElement()],
        getElementById: (id) => createMockElement(id),
        documentElement: {
            setAttribute: () => { },
--- a/tests/test_dom.js
+++ b/tests/test_dom.js
@@ -62,6 +62,11 @@ const html = `
    <button id="btn-this-week" class="active">This Week</button>
    <button id="btn-next-week">Next Week</button>
    <!-- Mocks for Language Toggle -->
    <button class="lang-btn" data-lang="de">DE</button>
    <button class="lang-btn" data-lang="en">EN</button>
    <button class="lang-btn" data-lang="all">ALL</button>
    <button id="btn-refresh">Refresh</button>
    <button id="btn-logout">Logout</button>
    <div class="order-history-header">Header</div>
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-v1.4.27
+v1.6.2
Author	SHA1	Message	Date
Kantine Wrapper	6a70a5a5e8	feat: sticky headers (v1.6.2)	2026-03-05 11:34:19 +01:00
Kantine Wrapper	edec109552	chore: update build artifacts for v1.6.1	2026-03-04 14:46:17 +01:00
Kantine Wrapper	a7aea2ece3	chore: version bump	2026-03-04 14:46:11 +01:00
Kantine Wrapper	49dc1cc135	chore: update build artifacts for v1.6.0	2026-03-04 14:45:25 +01:00
Kantine Wrapper	90f1c0ed04	feat: Add descriptive German tooltips to various UI elements for improved usability	2026-03-04 14:45:13 +01:00
Kantine Wrapper	42978c6e7e	chore: update build artifacts for v1.6.0	2026-03-04 13:29:25 +01:00
Kantine Wrapper	6ad3498bcc	cleanup test file	2026-03-04 13:27:13 +01:00
Kantine Wrapper	b44ecb2ccf	v1.6.0: Language Filter	2026-03-04 13:26:46 +01:00
Kantine Wrapper	9e161e2907	chore: update build artifacts for v1.6.0	2026-03-04 13:11:43 +01:00
Kantine Wrapper	8b15760463	feat: Introduce language filter with DE/EN/ALL toggle for menu descriptions and update to version 1.6.0.	2026-03-04 13:11:34 +01:00
Kantine Wrapper	4aa67c9cbe	chore: update build artifacts for v1.5.1	2026-03-04 11:42:04 +01:00
Kantine Wrapper	12c55ef883	feat: Add a collapsing video banner to the installation page.	2026-03-04 11:41:58 +01:00
Kantine Wrapper	1e9dd9a3b5	chore: update build artifacts for v1.5.1	2026-03-04 11:39:19 +01:00
Kantine Wrapper	db8b2c5629	fix: Correct Friday order payload `preorder` and time, and update version to v1.5.1.	2026-03-04 11:39:09 +01:00
Kantine Wrapper	67533875bd	chore: update build artifacts for v1.5.1	2026-03-04 11:33:37 +01:00
Kantine Wrapper	99809dafb7	fix: correct preorder flag and date format for Friday orders (v1.5.1)	2026-03-04 11:33:37 +01:00
Kantine Wrapper	4cf3e4adc2	chore: update build artifacts for v1.5.0	2026-02-26 17:37:34 +01:00
Kantine Wrapper	4fe7950697	style: update favicon_base.png	2026-02-26 17:37:34 +01:00
Kantine Wrapper	e162a16550	build: autogenerate favicon.png and update installer assets for v1.5.0	2026-02-26 17:36:58 +01:00
Kantine Wrapper	b7c3aac921	chore: update build artifacts for v1.5.0	2026-02-26 17:13:51 +01:00
Kantine Wrapper	a902732d4b	style: replace logo unicode char with dynamic favicon image in installer	2026-02-26 17:13:51 +01:00
Kantine Wrapper	eaab21151a	chore: update build artifacts for v1.5.0	2026-02-26 17:10:33 +01:00
Kantine Wrapper	5af1f86700	feat: Update favicon and add theming support to the bookmarklet.	2026-02-26 17:10:27 +01:00
Kantine Wrapper	90b503ddb7	chore: update build artifacts for v1.5.0	2026-02-26 12:43:13 +01:00
Kantine Wrapper	10ffbd8c68	build: automatically generate favicon.png from favicon_base.png if present	2026-02-26 12:43:03 +01:00
Kantine Wrapper	0294db7976	chore: update build artifacts for v1.5.0	2026-02-26 12:39:20 +01:00
Kantine Wrapper	5a2c23524d	chore: update build artifacts for v1.5.0	2026-02-26 12:35:04 +01:00
Kantine Wrapper	d4a9d39d67	feat: implement history modal with comprehensive styling, general UI improvements, and favicon update.	2026-02-26 12:34:50 +01:00
Kantine Wrapper	3c8d946a1e	style: update favicon to new design for v1.5.0 release	2026-02-26 11:20:49 +01:00
Kantine Wrapper	f71bcf1ac7	chore: update build artifacts for v1.5.0	2026-02-26 10:39:49 +01:00
Kantine Wrapper	b041e9f318	chore: bump version to 1.5.0 and rollup changelog	2026-02-26 10:39:49 +01:00
Kantine Wrapper	984a897f73	chore: update build artifacts for v1.4.31	2026-02-26 10:35:28 +01:00
Kantine Wrapper	ae54d97d96	fix: target localStorage cleanup to kantine_ prefix to prevent host session loss (v1.4.31)	2026-02-26 10:35:28 +01:00
Kantine Wrapper	6ed0831f5d	chore: update build artifacts for v1.4.30	2026-02-26 10:18:50 +01:00
Kantine Wrapper	ba75544f68	fix: session loss and order alarm rendering across unauthenticated sessions (v1.4.30)	2026-02-26 10:18:50 +01:00
Kantine Wrapper	7fdf7f6f3e	chore: update build artifacts for v1.4.29	2026-02-26 10:01:39 +01:00
Kantine Wrapper	614f498d11	fix: defer favicon injection with setTimeout for htmlpreview compat (v1.4.29)	2026-02-26 10:01:17 +01:00
Kantine Wrapper	5f30696315	chore: update build artifacts for v1.4.28	2026-02-26 09:57:46 +01:00
Kantine Wrapper	cb5aa28f94	feat: custom favicon from user design, resized to 32x32 (v1.4.28)	2026-02-26 09:57:11 +01:00