changes to the get_user_by_student_card function because of a faulty update regarding the searching of the student Cars

Zusätzlich wurde die Item-Suche robuster gemacht:

Vergleich gegen Benutzername
Vergleich gegen Benutzer-ObjectId
Vergleich gegen session['user_id']
Unterstützung für verschlüsselte und unverschlüsselte Benutzerwerte
Unterstützung für Item-IDs als String und als MongoDB-ObjectId
Geändert wurde:

Web/app.py

.github/workflows/release-docker.yml

@@ -150,10 +150,7 @@ jobs:
             LATEST_MAJOR="0"
           fi
 
-          if [ "${BUMP_TYPE:-}" != "major" ] && [ "$TAG_MAJOR" != "$LATEST_MAJOR" ]; then
-            echo "Error: major version must stay v$LATEST_MAJOR.x.x (got $TAG)"
-            exit 1
-          fi
+          
 
           if git rev-parse -q --verify "refs/tags/$TAG" >/dev/null; then
             i=1

Legal/TEST_AUSLEIHUNG.md

@@ -20,13 +20,19 @@ pytest test_ausleihung.py -vv --tb=long
 
 ## Test Coverage
 
-### ✅ Status Determination (5 tests)
+### ✅ Status Determination
 - Future borrowings marked as 'planned'
 - Current borrowings marked as 'active'
-- Past borrowings marked as 'completed'
+- Active borrowings remain 'active' after the planned end until return confirmation
 - Cancelled status never changes
 - Active borrowings without end time
 
+### ✅ Inventory borrowing workflow
+- Planned inventory borrowings activate automatically at their start when the item is available
+- Unavailable items remain planned and notify the requester and current holder
+- Reaching the planned end creates a return warning instead of an automatic return
+- The item is completed and made available only after the user confirms the return
+
 ### ✅ Create Operations (2 tests)
 - Create immediately active borrowing
 - Create planned/future borrowing

Web/modules/database/ausleihung.py

@@ -15,7 +15,8 @@ Hauptfunktionen:
 
 Sammlungsstruktur:
 - ausleihungen: Speichert alle Ausleihungsdatensätze mit ihrem Status
-  - Status-Werte: 'planned' (geplant), 'active' (aktiv), 'completed' (abgeschlossen), 'cancelled' (storniert)
+  - Status-Werte: 'planned' (geplant), 'active' (aktiv), 'completed' (nach bestätigter Rückgabe), 'cancelled' (storniert)
+  - Das geplante Ende beendet eine aktive Ausleihe nicht automatisch; es erzeugt einen Rückgabehinweis.
 """
 '''
    Copyright 2025-2026 AIIrondev
@@ -42,12 +43,12 @@ def _get_client():
     return MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
 # Add this helper function after imports
 def ensure_timezone_aware(dt):
-    """Ensures a datetime is timezone-aware, using UTC if naive"""
+    """Return a timezone-aware datetime, treating naive DB values as UTC."""
     if dt is None:
         return None
     if dt.tzinfo is None:
-        # Treat naive datetimes as UTC
-        return dt.replace(tzinfo=None)
+        # PyMongo returns BSON datetimes as naive UTC unless tz_aware is enabled.
+        return dt.replace(tzinfo=datetime.timezone.utc)
     return dt
 
 def get_current_status(ausleihung, log_changes=False, user=None):
@@ -82,8 +83,8 @@ def get_current_status(ausleihung, log_changes=False, user=None):
         return 'completed'
     
     current_time = datetime.datetime.now(ZoneInfo("Europe/Berlin"))
-    start_time = ausleihung.get('Start')
-    end_time = ausleihung.get('End')
+    start_time = ensure_timezone_aware(ausleihung.get('Start'))
+    end_time = ensure_timezone_aware(ausleihung.get('End'))
     
     # Wenn kein Startdatum vorhanden ist, Status auf 'planned' setzen
     if not start_time:
@@ -96,13 +97,10 @@ def get_current_status(ausleihung, log_changes=False, user=None):
             ausleihung_id = str(ausleihung.get('_id', 'unknown'))[:12]
             print(f"[DEBUG] Ausleihe {ausleihung_id} startet in {time_until_start/3600:.1f} Stunden ({start_time}), noch geplant")
         new_status = 'planned'
-    # Wenn kein Enddatum gesetzt ist oder die aktuelle Zeit vor dem Enddatum liegt,
-    # ist die Ausleihung aktiv
-    elif not end_time or current_time < end_time:
-        new_status = 'active'
-    # Wenn die aktuelle Zeit nach dem Enddatum liegt, ist die Ausleihung beendet
+    # Eine aktive Ausleihe bleibt aktiv, bis die Rückgabe ausdrücklich bestätigt
+    # wurde. Das geplante Ende löst nur einen Rückgabehinweis aus.
     else:
-        new_status = 'completed'
+        new_status = 'active'
     
     # Protokollieren Sie Statusänderungen, wenn aktiviert und eine Änderung stattgefunden hat
     if log_changes and new_status != original_status and '_id' in ausleihung:
@@ -185,13 +183,13 @@ def create_backup_database():
 
 # === AUSLEIHUNG MANAGEMENT ===
 
-def add_ausleihung(item_id, user, start_date, end_date=None, notes="", status="active", period=None, exemplar_data=None, due_date=None):
+def add_ausleihung(item_id, user_id, start_date, end_date=None, notes="", status="active", period=None, exemplar_data=None, due_date=None):
     """
     Add a new borrowing record for an item.
     
     Args:
         item_id (str): ID of the item borrowed
-        user (str): Username of the borrower
+        user_id (str): ID of the borrower
         start_date (datetime): Start date and time of the borrowing
         end_date (datetime, optional): End date and time if already returned
         notes (str, optional): Additional notes about the borrowing
@@ -209,7 +207,7 @@ def add_ausleihung(item_id, user, start_date, end_date=None, notes="", status="a
 
         ausleihung = {
             'Item': item_id,
-            'User': dp.encrypt_text(user),
+            'User': str(user_id),
             'Start': start_date,
             'Status': status
         }
@@ -256,8 +254,7 @@ def update_ausleihung(id, item_id=None, user_id=None, start=None, end=None, note
         if item_id is not None:
             update_data['Item'] = item_id
         if user_id is not None:
-            # WICHTIG: Gleiche Verschlüsselung wie in add_ausleihung nutzen!
-            update_data['User'] = dp.encrypt_text(user_id) if hasattr(dp, 'encrypt_text') else user_id
+            update_data['User'] = str(user_id)
         if start is not None:
             update_data['Start'] = ensure_timezone_aware(start)
         if end is not None:
@@ -353,7 +350,7 @@ def cancel_ausleihung(id):
 
         # Mark the booking as cancelled
         result = ausleihungen.update_one(
-            {'_id': ObjectId(id)},
+            {'_id': ObjectId(id), 'Status': {'$in': ['planned', 'active']}},
             {'$set': {
                 'Status': 'cancelled',
                 'LastUpdated': datetime.datetime.now(ZoneInfo("Europe/Berlin"))
@@ -367,6 +364,16 @@ def cancel_ausleihung(id):
         return False
 
 
+def get_booking(id):
+    """Compatibility wrapper for the booking route."""
+    return get_ausleihung(id)
+
+
+def cancel_booking(id):
+    """Compatibility wrapper for the booking route."""
+    return cancel_ausleihung(id)
+
+
 def remove_ausleihung(id):
     """
     Markiert einen Ausleihungsdatensatz als gelöscht (Soft-Delete).
@@ -546,9 +553,7 @@ def get_ausleihung_by_user(user_id, status=None, use_client_side_verification=Tr
             db = client[cfg.MONGODB_DB]
             ausleihungen = db['ausleihungen']
 
-            # Ensure proper encrypted query string if user IDs are encrypted in DB
-            search_user = dp.encrypt_text(user_id) if hasattr(dp, 'encrypt_text') else user_id
-            query = {'User': search_user, 'Status': {'$ne': 'deleted'}}
+            query = {'User': str(user_id), 'Status': {'$ne': 'deleted'}}
 
             if not use_client_side_verification:
                 if status is not None:
@@ -854,8 +859,8 @@ def reset_item_completely(item_id):
 
 # === KOMPATIBILITÄTSFUNKTIONEN ===
 
-def add_planned_booking(item_id, user, start_date, end_date, notes="", period=None):
-    return add_ausleihung(item_id, user, start_date, end_date, notes, status='planned', period=period)
+def add_planned_booking(item_id, user_id, start_date, end_date, notes="", period=None):
+    return add_ausleihung(item_id, user_id, start_date, end_date, notes, status='planned', period=period)
 
 
 def check_booking_conflict(item_id, start_date, end_date, period=None):

Web/modules/database/items.py

@@ -911,9 +911,9 @@ def get_filter_names():
     if names_doc and 'names' in names_doc:
         return names_doc['names']
     return {
-        '1': 'Fach/Kategorie',
-        '2': 'System/Bereich',
-        '3': 'Typ/Art'
+        '1': 'Jahrgangsstufe',
+        '2': 'Fachgebiet',
+        '3': 'Schlagwort'
     }
 
 def set_filter_name(filter_num, name):

Web/modules/database/user.py

@@ -431,15 +431,14 @@ def check_password_strength(password):
     if password is None:
         return False
 
-    if len(password) < 12:
+    if len(password) < 5:
         return False
 
     has_lower = any(char.islower() for char in password)
     has_upper = any(char.isupper() for char in password)
     has_digit = any(char.isdigit() for char in password)
-    has_symbol = any(not char.isalnum() for char in password)
 
-    if not (has_lower and has_upper and has_digit and has_symbol):
+    if not (has_lower and has_upper and has_digit):
         return False
     return True
 
@@ -685,7 +684,7 @@ def student_card_exists(student_card_id):
     client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
     db = _get_tenant_db(client)
     users = db['student_cards']
-    exists = users.find_one({'SchülerName': normalized}) is not None
+    exists = users.find_one({'AusweisId': normalized}) is not None
     client.close()
     return exists
 
@@ -698,7 +697,7 @@ def get_user_by_student_card(student_card_id):
     client = MongoClient(cfg.MONGODB_HOST, cfg.MONGODB_PORT)
     db = _get_tenant_db(client)
     users = db['student_cards']
-    found_user = users.find_one({'SchülerName': normalized})
+    found_user = users.find_one({'AusweisId': normalized})
     client.close()
 
     # Do not call dp.decrypt_text() here because found_user is a MongoDB dictionary.

Web/modules/emailservice/email.py

@@ -1,5 +1,6 @@
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
+from email.mime.application import MIMEApplication
 import smtplib
 import time
 
@@ -8,27 +9,34 @@ import Web.modules.database.settings as cfg
 
 def _build_smtp_client():
     smtp = smtplib.SMTP(
-        cfg.EMAIL_SMTP_HOST,
-        cfg.EMAIL_SMTP_PORT,
-        timeout=cfg.EMAIL_TIMEOUT_SECONDS,
+        "mail.invario-software.de",
+        587,
+        timeout=10,
     )
     smtp.ehlo()
-    if cfg.EMAIL_USE_TLS:
+    if True:
         smtp.starttls()
         smtp.ehlo()
-    if cfg.EMAIL_USERNAME:
-        smtp.login("no-reply@invario-software.de", "#,EATwIn,68" or "")
+    smtp.login("no-reply@invario-software.de", "eSpage,65,{")
     return smtp
 
 
-def send(email: list | str, subject: str, note: str, sender: str) -> bool:
-    """Sends the email with the link to the Clients."""
+
+def _normalize_recipients(email: list | str) -> list[str]:
+    if isinstance(email, str):
+        email = email.replace(';', ',').split(',')
+    return [str(recipient).strip() for recipient in (email or []) if str(recipient).strip()]
+
+
+def _send_message(email: list | str, subject: str, note: str, sender: str, attachment=None) -> bool:
+    """Send a plain/HTML message, optionally with one PDF attachment."""
     if not cfg.MODULES.is_enabled("mail"):
         print("Debug: Module not enabled")
         return False
 
-    if isinstance(email, str):
-        email = [email]
+    recipients = _normalize_recipients(email)
+    if not recipients:
+        return False
 
     body_message = note
 
@@ -63,25 +71,27 @@ def send(email: list | str, subject: str, note: str, sender: str) -> bool:
     try:
         smtp = _build_smtp_client()
 
-        for i, recipient in enumerate(email):
+        for i, recipient in enumerate(recipients):
             start_time = time.time()
 
-            msg = MIMEMultipart("alternative")
+            msg = MIMEMultipart("mixed" if attachment else "alternative")
             msg["Subject"] = str(subject)
-            msg["From"] = f"{sender} <no-reply@invario-software.de>"
+            from_address = "no-reply@invario-software.de"
+            msg["From"] = f"{sender} <{from_address}>"
             msg["To"] = str(recipient)
 
-            msg.attach(MIMEText(text_content, "plain"))
-            msg.attach(MIMEText(html_content, "html"))
-
-            #smtp.sendmail(
-            #    from_addr=cfg.EMAIL_USERNAME,
-            #    to_addrs=[recipient],
-            #    msg=msg.as_string()
-            #)
+            body = MIMEMultipart("alternative") if attachment else msg
+            body.attach(MIMEText(text_content, "plain"))
+            body.attach(MIMEText(html_content, "html"))
+            if attachment:
+                msg.attach(body)
+                attachment_payload, filename = attachment
+                pdf_part = MIMEApplication(attachment_payload, _subtype="pdf")
+                pdf_part.add_header("Content-Disposition", "attachment", filename=filename)
+                msg.attach(pdf_part)
 
             smtp.sendmail(
-                from_addr="no-reply@invario-software.de",
+                from_addr=from_address,
                 to_addrs=[recipient],
                 msg=msg.as_string()
             )
@@ -89,7 +99,7 @@ def send(email: list | str, subject: str, note: str, sender: str) -> bool:
             elapsed_time = time.time() - start_time
             sleep_time = interval - elapsed_time
 
-            if sleep_time > 0 and i < len(email) - 1:
+            if sleep_time > 0 and i < len(recipients) - 1:
                 time.sleep(sleep_time)
 
         return True
@@ -101,4 +111,14 @@ def send(email: list | str, subject: str, note: str, sender: str) -> bool:
             try:
                 smtp.quit()
             except Exception:
-                pass
+                pass
+
+
+def send(email: list | str, subject: str, note: str, sender: str) -> bool:
+    """Send an HTML/plain email without an attachment."""
+    return _send_message(email, subject, note, sender)
+
+
+def send_pdf(email: list | str, subject: str, note: str, sender: str, pdf_bytes: bytes, filename: str) -> bool:
+    """Send an email with a PDF attachment."""
+    return _send_message(email, subject, note, sender, attachment=(pdf_bytes, filename))

Web/modules/terminplaner/blueprint.py

@@ -3,6 +3,7 @@ import Web.modules.terminplaner.backend_server as appointment_service
 import Web.modules.database.settings as cfg
 import Web.modules.database.termine as termin
 import Web.modules.database.user as us
+from Web.modules.emailservice.email import send, send_pdf
 from Web.modules.terminplaner.backend_server import _resolve_public_base_url
 import csv
 import io
@@ -409,7 +410,7 @@ def client_slot_calendar_export(appointment_id):
     return response
 
 
-@appoint_bp.route('/export_pdf_brief/<plan_id>', methods=['GET'])
+@appoint_bp.route('/export_pdf_brief/<plan_id>', methods=['GET', 'POST'])
 def export_pdf_brief(plan_id):
     # 1. Daten holen (Hier als Beispiel, passe dies auf deine Datenbank an)
     # terminplan = Terminplan.query.get(plan_id)
@@ -532,12 +533,35 @@ def export_pdf_brief(plan_id):
     # Buffer auf Anfang zurücksetzen
     pdf_buffer.seek(0)
     
+    pdf_filename = f"Einladung_{plan_daten['titel'].replace(' ', '_')}.pdf"
+    if request.method == 'POST':
+        recipient_email = (request.form.get('recipient_email') or '').strip()
+        if not recipient_email:
+            flash('Bitte eine Empfänger-E-Mail-Adresse eingeben oder nur PDF auswählen.', 'error')
+            return redirect(url_for('terminplaner.main', tenant=tenant_id or None))
+        if not cfg.MODULES.is_enabled('mail'):
+            flash('Das E-Mail-Add-on ist deaktiviert. Der Einladungsbrief kann weiterhin als PDF heruntergeladen werden.', 'warning')
+            return redirect(url_for('terminplaner.main', tenant=tenant_id or None))
+        sent = send_pdf(
+            recipient_email,
+            f'Einladung zur Terminbuchung: {plan_daten["titel"]}',
+            f'Anbei erhalten Sie den Einladungsbrief für {plan_daten["titel"]} als PDF.',
+            'Terminplanungssystem',
+            pdf_buffer.getvalue(),
+            pdf_filename,
+        )
+        flash(
+            'Einladungsbrief wurde per E-Mail versendet.' if sent else 'Einladungsbrief konnte nicht per E-Mail versendet werden.',
+            'success' if sent else 'error',
+        )
+        return redirect(url_for('terminplaner.main', tenant=tenant_id or None))
+
     # An Nutzer ausliefern
     return send_file(
         pdf_buffer,
         mimetype='application/pdf',
         as_attachment=True,
-        download_name=f"Einladung_{plan_daten['titel'].replace(' ', '_')}.pdf"
+        download_name=pdf_filename
     )
 
 @appoint_bp.route('/')
@@ -557,5 +581,6 @@ def main():
         current_user=current_user,
         upcoming_events=upcoming_events,
         tenant_id=tenant_id,
-        appointment_module_enabled=cfg.MODULES.is_enabled('terminplan')
+        appointment_module_enabled=cfg.MODULES.is_enabled('terminplan'),
+        mail_service_enabled=cfg.MODULES.is_enabled('mail')
     )

Web/push_notifications.py

@@ -227,6 +227,10 @@ def send_push_notification(username, title, body, icon=None, url='/', reference=
         sent_count = 0
         
         for subscription in subscriptions:
+            from Web.modules.emailservice.email import send, send_pdf
+            if cfg.MODULES.is_enabled('mail'):
+                #implement the sending
+                pass
             success = _send_to_subscription(
                 subscription,
                 title,

Web/static/css/styles.css

@@ -31,6 +31,9 @@
     --ui-text: #f8fafc;
     --ui-text-muted: #94a3b8;
     --ui-title: #ffffff;
+    --ui-overlay: #020617;
+    --ui-overlay-surface: #1e293b;
+    --ui-overlay-border: #64748b;
     --ui-shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
     --ui-shadow-md: 0 10px 30px rgba(0, 0, 0, 0.6), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
     
@@ -39,6 +42,10 @@
     --ui-btn-radius: 99px; /* Pillenform für Buttons */
 }
 
+:root[data-theme="dark"] {
+    color-scheme: dark;
+}
+
 /* Safe Area Support for iPad notches, Dynamic Island, and rounded corners */
 html {
     /* Ensure viewport-fit is respected */
@@ -914,6 +921,42 @@ html, body {
     }
 }
 
+/* iPad layout: keep content airy while using the available tablet width. */
+@media screen and (min-width: 768px) and (max-width: 1180px) {
+    .container {
+        width: min(100% - 32px, 1120px);
+        margin: 16px auto;
+        padding: 20px;
+    }
+
+    .form-control,
+    .form-select,
+    textarea,
+    input,
+    select {
+        min-height: 44px;
+        font-size: 16px;
+    }
+
+    .btn,
+    button,
+    input[type="submit"],
+    input[type="button"] {
+        min-height: 44px;
+        touch-action: manipulation;
+    }
+
+    .table-responsive {
+        border: 1px solid var(--ui-border);
+        border-radius: var(--ui-radius);
+        -webkit-overflow-scrolling: touch;
+    }
+
+    .table-responsive > .table {
+        margin-bottom: 0;
+    }
+}
+
 /* ========================================================= */
 /* UNIVERSAL DARK MODE OVERRIDES FOR HARDCODED HTML STYLES   */
 /* ========================================================= */
@@ -1002,3 +1045,104 @@ html, body {
 :root[data-theme="dark"] .favorite-item {
     outline: 2px solid #f59e0b !important;
 }
+
+/* Keep overlays and dialogs sufficiently opaque for readable content. */
+:root[data-theme="dark"] .modal,
+:root[data-theme="dark"] .modal-backdrop,
+:root[data-theme="dark"] .ui-modal-overlay,
+:root[data-theme="dark"] .item-modal,
+:root[data-theme="dark"] .reset-modal-overlay,
+:root[data-theme="dark"] #onboarding-overlay,
+:root[data-theme="dark"] [id$="-modal"][style*="inset"],
+:root[data-theme="dark"] [id$="Modal"][style*="inset"] {
+    background-color: var(--ui-overlay) !important;
+}
+
+:root[data-theme="dark"] .modal-content,
+:root[data-theme="dark"] .ui-modal-surface,
+:root[data-theme="dark"] .reset-modal-container,
+:root[data-theme="dark"] #onboarding-modal,
+:root[data-theme="dark"] [id$="-modal"] > div,
+:root[data-theme="dark"] [id$="Modal"] > div {
+    background-color: var(--ui-overlay-surface) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-overlay-border) !important;
+}
+
+/* Inline light surfaces must not become translucent or low-contrast in dark mode. */
+:root[data-theme="dark"] [style*="background: white"],
+:root[data-theme="dark"] [style*="background:#fff"],
+:root[data-theme="dark"] [style*="background: #fff"],
+:root[data-theme="dark"] [style*="background-color: white"],
+:root[data-theme="dark"] [style*="background-color:#fff"],
+:root[data-theme="dark"] [style*="background-color: #fff"] {
+    background-color: var(--ui-surface) !important;
+    color: var(--ui-text) !important;
+}
+
+/* Shared dark-mode surfaces for every template that extends base.html. */
+:root[data-theme="dark"] .container,
+:root[data-theme="dark"] .card,
+:root[data-theme="dark"] .card-body,
+:root[data-theme="dark"] .card-header,
+:root[data-theme="dark"] .card-footer,
+:root[data-theme="dark"] .content,
+:root[data-theme="dark"] .form-card,
+:root[data-theme="dark"] .form-container,
+:root[data-theme="dark"] .upload-container,
+:root[data-theme="dark"] .edit-container,
+:root[data-theme="dark"] .admin-content-container,
+:root[data-theme="dark"] .calendar-container,
+:root[data-theme="dark"] .table-container,
+:root[data-theme="dark"] .notice-card,
+:root[data-theme="dark"] .settings-card,
+:root[data-theme="dark"] .summary-card,
+:root[data-theme="dark"] .invoice-card,
+:root[data-theme="dark"] .student-card-form,
+:root[data-theme="dark"] .user-management-container,
+:root[data-theme="dark"] .error-container,
+:root[data-theme="dark"] .library-filter-panel,
+:root[data-theme="dark"] .library-items-table,
+:root[data-theme="dark"] .info-box {
+    background-color: var(--ui-surface) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+}
+
+:root[data-theme="dark"] .table,
+:root[data-theme="dark"] .table-responsive,
+:root[data-theme="dark"] .table > :not(caption) > *,
+:root[data-theme="dark"] .table > :not(caption) > * > *,
+:root[data-theme="dark"] .library-items-table td,
+:root[data-theme="dark"] .library-items-table th {
+    background-color: var(--ui-surface) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+}
+
+:root[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > *,
+:root[data-theme="dark"] .table-light,
+:root[data-theme="dark"] .table-light > *,
+:root[data-theme="dark"] .bg-white,
+:root[data-theme="dark"] .bg-light,
+:root[data-theme="dark"] .bg-body,
+:root[data-theme="dark"] .bg-body-secondary {
+    background-color: var(--ui-surface-soft) !important;
+    color: var(--ui-text) !important;
+}
+
+:root[data-theme="dark"] .form-text,
+:root[data-theme="dark"] .text-muted,
+:root[data-theme="dark"] small,
+:root[data-theme="dark"] .library-load-hint {
+    color: var(--ui-text-muted) !important;
+}
+
+/* White translucent template decorations become stable, readable surfaces. */
+:root[data-theme="dark"] [style*="background: rgba(255,255,255"],
+:root[data-theme="dark"] [style*="background: rgba(255, 255, 255"],
+:root[data-theme="dark"] [style*="background-color: rgba(255,255,255"],
+:root[data-theme="dark"] [style*="background-color: rgba(255, 255, 255"] {
+    background-color: var(--ui-surface-soft) !important;
+    color: var(--ui-text) !important;
+}

Web/templates/admin_audit.html

@@ -1,12 +1,103 @@
 {% extends 'base.html' %}
 {% block title %}Audit Dashboard - {{ APP_VERSION }}{% endblock %}
 {% block content %}
+<style>
+  .audit-panel,
+  .audit-stat-card,
+  .audit-table-panel {
+    border: 1px solid var(--ui-border);
+    border-radius: 10px;
+    background: var(--ui-surface);
+    color: var(--ui-text);
+  }
+
+  .audit-panel p,
+  .audit-stat-label,
+  .audit-table-panel th {
+    color: var(--ui-text-muted);
+  }
+
+  .audit-table-panel {
+    padding: 12px;
+  }
+
+  .audit-table-scroll {
+    max-height: 560px;
+    overflow: auto;
+  }
+
+  .audit-table-panel table {
+    width: 100%;
+    border-collapse: collapse;
+  }
+
+  .audit-table-panel th,
+  .audit-table-panel td {
+    border-bottom: 1px solid var(--ui-border) !important;
+  }
+
+  .audit-table-panel tbody tr:hover td {
+    background: var(--ui-bg-accent) !important;
+  }
+
+  .audit-mismatch-panel {
+    border-color: #f87171;
+    background: #fff7f7;
+  }
+
+  :root[data-theme="dark"] .audit-info-panel {
+    background: #082f49 !important;
+    border-left-color: #38bdf8 !important;
+  }
+
+  :root[data-theme="dark"] .audit-info-panel p {
+    color: #bae6fd !important;
+  }
+
+  :root[data-theme="dark"] .audit-panel,
+  :root[data-theme="dark"] .audit-stat-card,
+  :root[data-theme="dark"] .audit-table-panel {
+    background: var(--ui-surface) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+  }
+
+  :root[data-theme="dark"] .audit-mismatch-panel {
+    background: #451a1a !important;
+    border-color: #f87171 !important;
+  }
+
+  :root[data-theme="dark"] .audit-mismatch-panel h3 {
+    color: #fecaca !important;
+  }
+
+  :root[data-theme="dark"] .audit-table-panel th,
+  :root[data-theme="dark"] .audit-table-panel td,
+  :root[data-theme="dark"] .audit-table-panel pre {
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+  }
+
+  @media (max-width: 700px) {
+    .audit-table-panel {
+      padding: 8px;
+    }
+
+    .audit-table-scroll {
+      overflow-x: auto;
+    }
+
+    .audit-table-panel table {
+      min-width: 720px;
+    }
+  }
+</style>
 <div class="container" style="max-width:1400px; margin:0 auto; padding:18px;">
   <h1>Audit Dashboard</h1>
   <p>Integritätsstatus der Audit-Chain und letzte Audit-Ereignisse (max. 200 Einträge).</p>
 
   <!-- Information Box for DIN 5008 Compliance -->
-  <div style="background:#e8f4f8; border-left:4px solid #0284c7; padding:12px; margin:0 0 16px 0; border-radius:4px;">
+  <div class="audit-panel audit-info-panel" style="background:#e8f4f8; border-left:4px solid #0284c7; padding:12px; margin:0 0 16px 0; border-radius:4px;">
     <p style="margin:0; font-size:0.95rem; color:#1e40af;">
       <strong>✓ Professionelle PDF-Exporte:</strong> Die neuen DIN 5008 konformen Berichte sind speziell für Schulträger, 
       Rechnungsprüfungsämter und Behörden optimiert. Sie enthalten Revisionssicherheit, Barrierefreiheit (BFSG) und 
@@ -16,20 +107,26 @@
 
   <div style="display:grid; grid-template-columns:1fr 1fr; gap:12px; margin:10px 0 18px;">
     <!-- PDF Export Section -->
-    <div style="padding:14px; border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface);">
+    <div class="audit-panel" style="padding:14px; border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface);">
       <h4 style="margin:0 0 10px 0; color:#1a1a1a;">📄 PDF-Export (DIN 5008 konform)</h4>
       <p style="margin:0 0 10px 0; font-size:0.9rem; color:#666;">Professionelle Berichte für Schulträger und Behörden</p>
-      <div style="display:flex; gap:8px; flex-wrap:wrap;">
+      <div style="display:flex; gap:8px; flex-wrap:wrap; align-items:end;">
         <a class="btn btn-primary" href="{{ url_for('admin_audit_export_pdf_official') }}" style="flex:1; text-align:center;">
           📋 Amtlicher Bericht (DIN 5008)
         </a>
+        {% if mail_module_enabled %}
+        <form method="post" action="{{ url_for('admin_audit_export_pdf_official') }}" style="display:flex; gap:8px; flex:2; flex-wrap:wrap;">
+          <input type="email" name="recipient_email" required placeholder="Empfänger-E-Mail" aria-label="Empfänger-E-Mail für den Auditbericht" style="flex:1; min-width:220px; padding:8px; border:1px solid #cbd5e1; border-radius:6px;">
+          <button class="btn btn-outline-primary" type="submit">PDF per E-Mail senden</button>
+        </form>
+        {% endif %}
       </div>
     </div>
 
   </div>
 
   <div style="display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:12px; margin:16px 0 20px;">
-    <div style="padding:14px; border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface);">
+    <div class="audit-stat-card" style="padding:14px; border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface);">
       <div style="font-size:0.85rem; color:#64748b;">Chain Status</div>
       {% if verify_result.ok %}
       <div style="font-size:1.35rem; font-weight:700; color:#166534;">OK</div>
@@ -37,11 +134,11 @@
       <div style="font-size:1.35rem; font-weight:700; color:#991b1b;">FEHLER</div>
       {% endif %}
     </div>
-    <div style="padding:14px; border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface);">
+    <div class="audit-stat-card" style="padding:14px; border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface);">
       <div style="font-size:0.85rem; color:#64748b;">Einträge</div>
       <div style="font-size:1.35rem; font-weight:700;">{{ verify_result.count }}</div>
     </div>
-    <div style="padding:14px; border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface);">
+    <div class="audit-stat-card" style="padding:14px; border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface);">
       <div style="font-size:0.85rem; color:#64748b;">Letzter Index</div>
       <div style="font-size:1.35rem; font-weight:700;">{{ verify_result.last_chain_index }}</div>
     </div>
@@ -52,7 +149,7 @@
   </div>
 
   {% if verify_result.mismatches %}
-  <div style="margin-bottom:20px; border:1px solid #fecaca; background:#fff7f7; border-radius:10px; padding:12px;">
+  <div class="audit-table-panel audit-mismatch-panel" style="margin-bottom:20px; border:1px solid #fecaca; background:#fff7f7; border-radius:10px; padding:12px;">
     <h3 style="margin-top:0; color:#991b1b;">Integritätsabweichungen</h3>
     <div style="max-height:280px; overflow:auto;">
       <table class="table" style="width:100%; border-collapse:collapse;">
@@ -79,9 +176,9 @@
   </div>
   {% endif %}
 
-  <div style="border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface); padding:12px;">
+  <div class="audit-table-panel" style="border:1px solid #e2e8f0; border-radius:10px; background: var(--ui-surface); padding:12px;">
     <h3 style="margin-top:0;">Letzte Audit-Ereignisse</h3>
-    <div style="max-height:560px; overflow:auto;">
+    <div class="audit-table-scroll" style="max-height:560px; overflow:auto;">
       <table class="table" style="width:100%; border-collapse:collapse;">
         <thead>
           <tr>

Web/templates/admin_borrowings.html

@@ -195,6 +195,13 @@
         <textarea id="damage-reason" name="damage_reason" rows="5" required style="width:100%; padding:10px; border:1px solid #ddd; border-radius:6px; resize:vertical;" placeholder="Beschreiben Sie kurz den Schaden oder die Zerstörung."></textarea>
       </div>
 
+      {% if email_service_enabled %}
+      <div style="margin-bottom:16px;">
+        <label for="invoice-recipient-email" style="display:block; font-weight:700; margin-bottom:6px;">Empfänger-E-Mail für den PDF-Versand</label>
+        <input id="invoice-recipient-email" name="recipient_email" type="email" style="width:100%; padding:10px; border:1px solid #ddd; border-radius:6px;" placeholder="name@beispiel.de">
+      </div>
+      {% endif %}
+
       <div style="display:flex; flex-wrap:wrap; gap:16px; align-items:center; margin-bottom:18px;">
         <label style="display:flex; align-items:center; gap:8px;">
           <input type="checkbox" name="mark_destroyed" checked>
@@ -208,7 +215,10 @@
 
       <div style="display:flex; justify-content:flex-end; gap:10px;">
         <button type="button" class="btn btn-secondary" onclick="closeInvoiceModal()">Abbrechen</button>
-        <button type="submit" class="btn btn-danger">PDF-Rechnung erstellen</button>
+        <button type="submit" class="btn btn-outline-danger" name="delivery" value="pdf">Nur PDF herunterladen</button>
+        {% if email_service_enabled %}
+        <button type="submit" class="btn btn-danger" name="delivery" value="email">PDF per E-Mail senden</button>
+        {% endif %}
       </div>
     </form>
   </div>

Web/templates/admin_school_settings.html

@@ -78,15 +78,15 @@
                     <div class="form-row">
                         <div class="form-group">
                             <label for="filter_name_1">Name Filter 1</label>
-                            <input type="text" id="filter_name_1" name="filter_name_1" value="{{ filter_names.get('1', 'Fach/Kategorie') }}" placeholder="z. B. Fach/Kategorie">
+                            <input type="text" id="filter_name_1" name="filter_name_1" value="{{ filter_names.get('1', 'Fachgebiet') }}" placeholder="z. B. Fachgebiet">
                         </div>
                         <div class="form-group">
                             <label for="filter_name_2">Name Filter 2</label>
-                            <input type="text" id="filter_name_2" name="filter_name_2" value="{{ filter_names.get('2', 'System/Bereich') }}" placeholder="z. B. System/Bereich">
+                            <input type="text" id="filter_name_2" name="filter_name_2" value="{{ filter_names.get('2', 'Klassenstufe') }}" placeholder="z. B. Klassenstufe">
                         </div>
                         <div class="form-group">
                             <label for="filter_name_3">Name Filter 3</label>
-                            <input type="text" id="filter_name_3" name="filter_name_3" value="{{ filter_names.get('3', 'Typ/Art') }}" placeholder="z. B. Typ/Art">
+                            <input type="text" id="filter_name_3" name="filter_name_3" value="{{ filter_names.get('3', 'Schlagwort') }}" placeholder="z. B. Schlagwort">
                         </div>
                     </div>
 
@@ -120,9 +120,64 @@
                 <p>Diese Angaben erscheinen künftig im amtlichen Audit-PDF und in anderen Behördenberichten.</p>
             </div>
         </div>
+
+        <!-- Danger Zone: Schuljahreswechsel -->
+        <div class="card danger-zone" style="grid-column: 1 / -1; border-color: #fca5a5;">
+            <div class="card-header" style="background: #fef2f2; border-bottom: 1px solid #fca5a5;">
+                <h2 style="color: #991b1b;">Erweiterte Aktionen</h2>
+            </div>
+            <div class="card-body" style="display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px;">
+                <div>
+                    <strong style="color: #7f1d1d; display: block; font-size: 1.05rem; margin-bottom: 4px;">Schuljahreswechsel durchführen</strong>
+                    <span style="color: #991b1b; font-size: 0.9rem;">Diese Aktion bereitet das System auf das neue Schuljahr vor (z. B. Hochstufen von Klassen).</span>
+                </div>
+                <button type="button"
+                        id="btn-rollover"
+                        class="btn btn-danger"
+                        onclick="triggerSchoolYearRollover()">
+                    Schuljahreswechsel auslösen
+                </button>
+            </div>
+        </div>
     </div>
 </div>
 
+<script>
+async function triggerSchoolYearRollover() {
+    if (!confirm('Möchtest du den Schuljahreswechsel wirklich durchführen? Dies kann nicht rückgängig gemacht werden!')) {
+        return;
+    }
+
+    const btn = document.getElementById('btn-rollover');
+    btn.disabled = true;
+    btn.textContent = 'Wird ausgeführt...';
+
+    try {
+        const response = await fetch('/admin/trigger_school_year_rollover', {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json'
+            }
+        });
+
+        const data = await response.json();
+
+        if (response.ok && data.ok) {
+            alert('Schuljahreswechsel erfolgreich durchgeführt!\n\nZusammenfassung:\n' + JSON.stringify(data.summary, null, 2));
+            location.reload();
+        } else {
+            alert('Fehler: ' + (data.message || 'Schuljahreswechsel konnte nicht durchgeführt werden.'));
+        }
+    } catch (error) {
+        console.error('Rollover error:', error);
+        alert('Netzwerk- oder Serverfehler beim Ausführen des Schuljahreswechsels.');
+    } finally {
+        btn.disabled = false;
+        btn.textContent = 'Schuljahreswechsel auslösen';
+    }
+}
+</script>
+
 <style>
     .container {
         max-width: 1100px;
@@ -245,12 +300,17 @@
         cursor: pointer;
     }
 
+    .btn:disabled {
+        opacity: 0.6;
+        cursor: not-allowed;
+    }
+
     .btn-primary {
         background: #2563eb;
         color: #fff;
     }
 
-    .btn-primary:hover {
+    .btn-primary:hover:not(:disabled) {
         background: #1d4ed8;
         color: #fff;
     }
@@ -261,11 +321,21 @@
         border-color: #d1d5db;
     }
 
-    .btn-secondary:hover {
+    .btn-secondary:hover:not(:disabled) {
         background: #e5e7eb;
         color: #111827;
     }
 
+    .btn-danger {
+        background: #ef4444;
+        color: #fff;
+    }
+
+    .btn-danger:hover:not(:disabled) {
+        background: #dc2626;
+        color: #fff;
+    }
+
     .preview-card p {
         margin: 0 0 10px;
         line-height: 1.45;
@@ -283,5 +353,15 @@
             grid-template-columns: 1fr;
         }
     }
+
+    @media (max-width: 600px) {
+        .danger-zone .card-body {
+            flex-direction: column;
+            align-items: flex-start;
+        }
+        .danger-zone .btn {
+            width: 100%;
+        }
+    }
 </style>
-{% endblock %}
+{% endblock %}

Web/templates/base.html

@@ -1135,12 +1135,7 @@
                             <a class="nav-link quick-link-pill {% if current_path == url_for('terminplaner.configure') %}nav-active{% endif %}" href="{{ url_for('terminplaner.configure') }}" data-tutorial-tip="Neuen Terminplan erstellen und an Ihr Team versenden.">Neue Planung</a>
                         </li>
                         {% endif %}
-                        <li class="nav-item" data-nav-fixed="true">
-                            <button id="themeToggleBtn" class="btn btn-link nav-link px-3" aria-label="Dark Mode umschalten" title="Theme umschalten">
-                                <span class="theme-icon-light" style="display: none;">☀️</span>
-                                <span class="theme-icon-dark" style="display: none;">🌙</span>
-                            </button>
-                        </li>
+                        
                         <li class="nav-item dropdown ms-lg-auto">
                             <a class="nav-link dropdown-toggle" href="#" id="termMoreDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false" title="Weitere Optionen">Mehr Optionen</a>
                             <ul class="dropdown-menu dropdown-menu-end" aria-labelledby="termMoreDropdown">
@@ -1199,6 +1194,13 @@
                                     <li><hr class="dropdown-divider"></li>
                                     <li><a class="dropdown-item" href="{{ url_for('change_password') }}">Passwort ändern</a></li>
                                     <li><hr class="dropdown-divider"></li>
+                                    <li class="dropdown-item" data-nav-fixed="true">
+                                        <button type="button" class="btn btn-link nav-link px-3" data-theme-toggle aria-label="Dark Mode umschalten" aria-pressed="false" title="Theme umschalten">
+                                            <span class="theme-icon-light" style="display: none;">☀️</span>
+                                            <span class="theme-icon-dark" style="display: none;">🌙</span>
+                                        </button>
+                                    </li>
+                                    <li><hr class="dropdown-divider"></li>
                                     <li><a class="dropdown-item" href="{{ url_for('logout') }}">Logout</a></li>
                                 </ul>
                             </div>
@@ -1228,12 +1230,6 @@
                         </li>
                         {% endif %}
                         {% endif %}
-                        <li class="nav-item" data-nav-fixed="true">
-                            <button id="themeToggleBtn" class="btn btn-link nav-link px-3" aria-label="Dark Mode umschalten" title="Theme umschalten">
-                                <span class="theme-icon-light" style="display: none;">☀️</span>
-                                <span class="theme-icon-dark" style="display: none;">🌙</span>
-                            </button>
-                        </li>
 
                         <li class="nav-item dropdown ms-lg-auto">
                             <a class="nav-link dropdown-toggle" href="#" id="invMoreDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false" title="Weitere Optionen">
@@ -1305,8 +1301,6 @@
                                     <button class="function-search-btn" type="submit">Los</button>
                                 </form>
                             </div>
-                            {% if current_tenant_db %}
-                            <span class="navbar-text tenant-badge" title="Aktive Tenant-Datenbank">{{ current_tenant_db }}</span>
                         {% endif %}
                         <span class="navbar-text text-light me-3">{{ session['username'] }}</span>
                             <div class="dropdown me-2 user-menu-wrap">
@@ -1321,6 +1315,13 @@
                                     <li><hr class="dropdown-divider"></li>
                                     <li><a class="dropdown-item" href="{{ url_for('change_password') }}">Passwort ändern</a></li>
                                     <li><hr class="dropdown-divider"></li>
+                                    <li class="dropdown-item" data-nav-fixed="true">
+                                        <button type="button" class="btn btn-link nav-link px-3" data-theme-toggle aria-label="Dark Mode umschalten" aria-pressed="false" title="Theme umschalten">
+                                            <span class="theme-icon-light" style="display: none;">☀️</span>
+                                            <span class="theme-icon-dark" style="display: none;">🌙</span>
+                                        </button>
+                                    </li>
+                                    <li><hr class="dropdown-divider"></li>
                                     <li><a class="dropdown-item" href="{{ url_for('logout') }}">Logout</a></li>
                                 </ul>
                             </div>
@@ -1329,7 +1330,6 @@
                 </div>
             </div>
         </nav>
-    {% endif %}
 
         {% if library_module_enabled and CURRENT_MODULE == 'library' %}
         <nav class="navbar navbar-expand-lg navbar-dark" id="libraryNavbar">
@@ -1342,27 +1342,23 @@
                     <ul class="navbar-nav me-auto mb-2 mb-lg-0" id="libraryNavList">
                         {% if current_permissions.pages.get('library_view', False) %}
                         <li class="nav-item" data-nav-fixed="true">
-                            <a class="nav-link {% if current_path == url_for('library_view') %}nav-active{% endif %}" href="{{ url_for('library_view') }}" data-tutorial-tip="Die Bibliothek zeigt Ihnen alle Medien und verfügbaren Bücher.">Medien/Ausleihe</a>
+                            <a class="nav-link {% if current_path == url_for('library_view') %}nav-active{% endif %}" href="{{ url_for('library_view') }}" data-tutorial-tip="Die Bibliothek zeigt Ihnen alle Medien und verfügbaren Bücher.">Ausleihe/Rückgabe</a>
                         </li>
                         {% endif %}
                         {% if 'username' in session %}
+                        <!--
                         {% if current_permissions.pages.get('tutorial_page', False) %}
                         <li class="nav-item">
                             <a class="nav-link quick-link-pill {% if current_path == url_for('tutorial_page') %}nav-active{% endif %}" href="{{ url_for('tutorial_page') }}" data-tutorial-tip="Nutzen Sie das Tutorial, um die Bibliotheksfunktionen kennenzulernen.">Tutorial</a>
                         </li>
                         {% endif %}
+                        -->
                         {% endif %}
                         {% if 'username' in session and current_permissions.actions.get('can_insert', False) and current_permissions.pages.get('library_admin', False) %}
                         <li class="nav-item">
                             <a class="nav-link nav-priority-link {% if current_path == url_for('library_admin') %}nav-active{% endif %}" href="{{ url_for('library_admin') }}" data-tutorial-tip="Neue Bibliotheksmedien können hier aufgenommen werden.">📖 Hochladen</a>
                         </li>
                         {% endif %}
-                        <li class="nav-item" data-nav-fixed="true">
-                            <button id="themeToggleBtn" class="btn btn-link nav-link px-3" aria-label="Dark Mode umschalten" title="Theme umschalten">
-                                <span class="theme-icon-light" style="display: none;">☀️</span>
-                                <span class="theme-icon-dark" style="display: none;">🌙</span>
-                            </button>
-                        </li>
 
                         <li class="nav-item dropdown ms-lg-auto">
                             <a class="nav-link dropdown-toggle" href="#" id="libMoreDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false" title="Weitere Optionen">
@@ -1376,7 +1372,7 @@
                                 <li><a class="dropdown-item" href="{{ url_for('mahnungen_admin') }}">Mahnungen</a></li>
                                 {% endif %}
                                 {% if student_cards_module_enabled %}
-                                {% if current_permissions.actions.get('can_manage_users', False) %}
+                                {% if current_permissions.actions.get('can_manage_settings', False) %}
                                 <li><a class="dropdown-item" href="{{ url_for('student_cards_admin') }}">Bibliotheksausweis</a></li>
                                 {% endif %}
                                 {% endif %}
@@ -1429,6 +1425,13 @@
                                     <li><hr class="dropdown-divider"></li>
                                     <li><a class="dropdown-item" href="{{ url_for('change_password') }}">Passwort ändern</a></li>
                                     <li><hr class="dropdown-divider"></li>
+                                    <li class="dropdown-item" data-nav-fixed="true">
+                                        <button type="button" class="btn btn-link nav-link px-3" data-theme-toggle aria-label="Dark Mode umschalten" aria-pressed="false" title="Theme umschalten">
+                                            <span class="theme-icon-light" style="display: none;">☀️</span>
+                                            <span class="theme-icon-dark" style="display: none;">🌙</span>
+                                        </button>
+                                    </li>
+                                    <li><hr class="dropdown-divider"></li>
                                     <li><a class="dropdown-item" href="{{ url_for('logout') }}">Logout</a></li>
                                 </ul>
                             </div>
@@ -1630,6 +1633,8 @@
         </div>
     </div>
 
+<!--
+
     <div id="onboarding-overlay" role="dialog" aria-modal="true" aria-label="Tutorial Vorschlag">
         <div id="onboarding-modal">
             <h3>Wollen Sie eine Vorstellung des Produkts?</h3>
@@ -1643,6 +1648,7 @@
             </div>
         </div>
     </div>
+-->
 
     <div id="notification-toast" class="notification-toast" role="status" aria-live="polite">
         <strong id="notification-toast-title">Neue Benachrichtigung</strong>
@@ -1662,7 +1668,7 @@
             <option value="Benachrichtigungen"></option>
             {% endif %}
             {% if current_permissions.pages.get('tutorial_page', False) %}
-            <option value="Tutorial"></option>
+            <!--<option value="Tutorial"></option>-->
             {% endif %}
         {% endif %}
 
@@ -1765,10 +1771,10 @@
             });
 
             const username = {{ (session['username'] if 'username' in session else '')|tojson }};
-            const isTutorialPage = window.location.pathname === {{ url_for('tutorial_page')|tojson }};
+            //const isTutorialPage = window.location.pathname === {{ url_for('tutorial_page')|tojson }};
             const isLoginPage = window.location.pathname === {{ url_for('login')|tojson }};
             const notificationsPagePath = {{ url_for('notifications_view')|tojson }};
-            const onboardingKey = username ? ('inventarsystem_tutorial_prompt_v1_' + username) : null;
+            //const onboardingKey = username ? ('inventarsystem_tutorial_prompt_v1_' + username) : null;
             const onboardingOverlay = document.getElementById('onboarding-overlay');
             const notificationButtons = Array.from(document.querySelectorAll('[data-notification-button="true"]'));
             const notificationToast = document.getElementById('notification-toast');
@@ -1789,9 +1795,9 @@
                     {% if current_permissions.pages.get('notifications_view', False) %}
                     { label: 'Benachrichtigungen', keywords: ['benachrichtigungen', 'nachrichten', 'notifications'], url: {{ url_for('notifications_view')|tojson }} },
                     {% endif %}
-                    {% if current_permissions.pages.get('tutorial_page', False) %}
-                    { label: 'Tutorial', keywords: ['tutorial', 'hilfe', 'anleitung'], url: {{ url_for('tutorial_page')|tojson }} },
-                    {% endif %}
+                    //{% if current_permissions.pages.get('tutorial_page', False) %}
+                    //{ label: 'Tutorial', keywords: ['tutorial', 'hilfe', 'anleitung'], url: {{ url_for('tutorial_page')|tojson }} },
+                    //{% endif %}
                 {% endif %}
                     
                 { label: 'Impressum', keywords: ['impressum'], url: {{ url_for('impressum')|tojson }} },
@@ -2042,11 +2048,11 @@
                 window.setInterval(pollNotificationStatus, 30000);
             }
 
-            function showOnboarding(){
-                if (onboardingOverlay) {
-                    onboardingOverlay.style.display = 'flex';
-                }
-            }
+            //function showOnboarding(){
+            //    if (onboardingOverlay) {
+            //        onboardingOverlay.style.display = 'flex';
+            //    }
+            //}
 
             function hideOnboarding(){
                 if (onboardingOverlay) {
@@ -2054,19 +2060,19 @@
                 }
             }
 
-            if (onboardingKey && !isTutorialPage && !isLoginPage) {
-                const decision = localStorage.getItem(onboardingKey);
-                if (!decision || decision === 'later') {
-                    showOnboarding();
-                }
-            }
+            //if (onboardingKey && !isTutorialPage && !isLoginPage) {
+            //    const decision = localStorage.getItem(onboardingKey);
+            //    if (!decision || decision === 'later') {
+            //        showOnboarding();
+            //    }
+            //}
 
-            document.getElementById('onboarding-start')?.addEventListener('click', function(){
-                if (onboardingKey) {
-                    localStorage.setItem(onboardingKey, 'started');
-                }
-                window.location.href = {{ url_for('tutorial_page')|tojson }};
-            });
+            //document.getElementById('onboarding-start')?.addEventListener('click', function(){
+            //    if (onboardingKey) {
+            //        localStorage.setItem(onboardingKey, 'started');
+            //    }
+            //    window.location.href = {{ url_for('tutorial_page')|tojson }};
+            //});
 
             document.getElementById('onboarding-later')?.addEventListener('click', function(){
                 if (onboardingKey) {
@@ -2345,56 +2351,225 @@
 
     <!-- Theme Toggle Script -->
     <script>
-        document.addEventListener('DOMContentLoaded', () => {
-            const toggleBtns = document.querySelectorAll('#themeToggleBtn');
-            if (toggleBtns.length === 0) return;
-            
-            function updateIcons(theme) {
-                const isDark = theme === 'dark';
-                document.querySelectorAll('.theme-icon-light').forEach(icon => icon.style.display = isDark ? 'inline' : 'none');
-                document.querySelectorAll('.theme-icon-dark').forEach(icon => icon.style.display = isDark ? 'none' : 'inline');
+        (function () {
+            const root = document.documentElement;
+            const metaThemeColor = document.getElementById('meta-theme-color');
+            const themeToggleSelector = '[data-theme-toggle]';
+
+            function getTheme() {
+                return root.getAttribute('data-theme') === 'dark' ? 'dark' : 'light';
             }
 
-            // Get current setup from initial script in head
-            let currentTheme = document.documentElement.getAttribute('data-theme') || 'light';
-            updateIcons(currentTheme);
+            function updateThemeUi(theme) {
+                const isDark = theme === 'dark';
+                document.querySelectorAll('.theme-icon-light').forEach(icon => {
+                    icon.style.display = isDark ? 'inline' : 'none';
+                });
+                document.querySelectorAll('.theme-icon-dark').forEach(icon => {
+                    icon.style.display = isDark ? 'none' : 'inline';
+                });
+                document.querySelectorAll(themeToggleSelector).forEach(button => {
+                    button.setAttribute('aria-pressed', String(isDark));
+                    button.setAttribute('aria-label', isDark ? 'Light Mode einschalten' : 'Dark Mode einschalten');
+                    button.setAttribute('title', isDark ? 'Light Mode einschalten' : 'Dark Mode einschalten');
+                });
+                if (metaThemeColor) {
+                    metaThemeColor.setAttribute('content', isDark ? '#1a252f' : '#2c3e50');
+                }
+            }
 
-            toggleBtns.forEach(btn => {
-                btn.addEventListener('click', (e) => {
-                    e.preventDefault();
-                    currentTheme = currentTheme === 'light' ? 'dark' : 'light';
-                    
-                    document.documentElement.setAttribute('data-theme', currentTheme);
-                    localStorage.setItem('inventarsystem-theme', currentTheme);
-                    document.getElementById('meta-theme-color').setAttribute('content', currentTheme === 'dark' ? '#1a252f' : '#2c3e50');
-                    
-                    updateIcons(currentTheme);
+            function applyTheme(theme, persist) {
+                const normalizedTheme = theme === 'dark' ? 'dark' : 'light';
+                root.setAttribute('data-theme', normalizedTheme);
+                if (persist) {
+                    try {
+                        localStorage.setItem('inventarsystem-theme', normalizedTheme);
+                    } catch (error) {
+                        console.warn('Theme konnte nicht gespeichert werden:', error);
+                    }
+                }
+                updateThemeUi(normalizedTheme);
+            }
+
+            document.addEventListener('DOMContentLoaded', function () {
+                updateThemeUi(getTheme());
+                document.addEventListener('click', function (event) {
+                    const button = event.target.closest(themeToggleSelector);
+                    if (!button) return;
+                    event.preventDefault();
+                    applyTheme(getTheme() === 'dark' ? 'light' : 'dark', true);
                 });
             });
-        });
+        })();
     </script>
     <script>
         (function () {
             const username = {{ (session['username'] if 'username' in session else '')|tojson }};
-            const tooltipModeKey = username ? ('inventarsystem_tutorial_tooltips_enabled_' + username) : 'inventarsystem_tutorial_tooltips_enabled';
+            //const tooltipModeKey = username ? ('inventarsystem_tutorial_tooltips_enabled_' + username) : 'inventarsystem_tutorial_tooltips_enabled';
             const enabled = localStorage.getItem(tooltipModeKey) === '1';
 
-            function applyTooltipMode(active) {
-                document.body.classList.toggle('tutorial-tooltips-active', active);
-                let indicator = document.getElementById('tutorialTooltipIndicator');
-                if (!indicator) {
-                    indicator = document.createElement('div');
-                    indicator.id = 'tutorialTooltipIndicator';
-                    indicator.className = 'tutorial-tooltip-indicator';
-                    indicator.textContent = 'Tutorial-Modus aktiv: Tooltips sind eingeschaltet';
-                    document.body.appendChild(indicator);
-                }
-                indicator.style.display = active ? 'inline-flex' : 'none';
-            }
+            //function applyTooltipMode(active) {
+            //    document.body.classList.toggle('tutorial-tooltips-active', active);
+            //    let indicator = document.getElementById('tutorialTooltipIndicator');
+            //    if (!indicator) {
+            //        indicator = document.createElement('div');
+            //        indicator.id = 'tutorialTooltipIndicator';
+            //        indicator.className = 'tutorial-tooltip-indicator';
+            //        indicator.textContent = 'Tutorial-Modus aktiv: Tooltips sind eingeschaltet';
+            //        document.body.appendChild(indicator);
+            //    }
+            //    indicator.style.display = active ? 'inline-flex' : 'none';
+            //}
 
             applyTooltipMode(enabled);
         })();
     </script>
 
+    <style id="dark-mode-component-overrides">
+        :root[data-theme="dark"] .mahnungen-head,
+        :root[data-theme="dark"] .mahnungen-card,
+        :root[data-theme="dark"] .tutorial-side,
+        :root[data-theme="dark"] .workflow-step,
+        :root[data-theme="dark"] .tutorial-note,
+        :root[data-theme="dark"] .tutorial-tooltip-toggle,
+        :root[data-theme="dark"] .bulk-delete-drawer,
+        :root[data-theme="dark"] .filter-group,
+        :root[data-theme="dark"] .filter-dropdown,
+        :root[data-theme="dark"] .calendar-wrapper,
+        :root[data-theme="dark"] .calendar-day-details,
+        :root[data-theme="dark"] .cal-booking-item,
+        :root[data-theme="dark"] .edit-form,
+        :root[data-theme="dark"] .password-change-form,
+        :root[data-theme="dark"] .upload-form,
+        :root[data-theme="dark"] .book-info-container,
+        :root[data-theme="dark"] .student-card-form,
+        :root[data-theme="dark"] .user-management-container {
+            background: var(--ui-surface) !important;
+            background-color: var(--ui-surface) !important;
+            color: var(--ui-text) !important;
+            border-color: var(--ui-border) !important;
+        }
+
+        :root[data-theme="dark"] .mahnungen-table th,
+        :root[data-theme="dark"] .calendar-header,
+        :root[data-theme="dark"] .filter-inputs,
+        :root[data-theme="dark"] .items-loading-indicator,
+        :root[data-theme="dark"] .detail-group.full-width .detail-value,
+        :root[data-theme="dark"] .library-filter-panel,
+        :root[data-theme="dark"] .card-header,
+        :root[data-theme="dark"] .modal-header,
+        :root[data-theme="dark"] .modal-footer {
+            background: var(--ui-surface-soft) !important;
+            background-color: var(--ui-surface-soft) !important;
+            color: var(--ui-text) !important;
+            border-color: var(--ui-border) !important;
+        }
+
+        :root[data-theme="dark"] .mahnungen-table tr:hover td,
+        :root[data-theme="dark"] .filter-option:hover,
+        :root[data-theme="dark"] .calendar-header button:hover,
+        :root[data-theme="dark"] .workflow-nav button:hover {
+            background: var(--ui-bg-accent) !important;
+            background-color: var(--ui-bg-accent) !important;
+        }
+
+        :root[data-theme="dark"] .mahnungen-head h1,
+        :root[data-theme="dark"] .tutorial-side h2,
+        :root[data-theme="dark"] .workflow-step h3,
+        :root[data-theme="dark"] .calendar-header span,
+        :root[data-theme="dark"] .calendar-day-details h5,
+        :root[data-theme="dark"] .detail-value,
+        :root[data-theme="dark"] .cal-booking-time,
+        :root[data-theme="dark"] .cal-booking-user,
+        :root[data-theme="dark"] .cal-booking-note,
+        :root[data-theme="dark"] .form-group label,
+        :root[data-theme="dark"] .page-header h1,
+        :root[data-theme="dark"] .card-header h2 {
+            color: var(--ui-title) !important;
+        }
+
+        :root[data-theme="dark"] .mahnungen-head p,
+        :root[data-theme="dark"] .tutorial-side p,
+        :root[data-theme="dark"] .workflow-step p,
+        :root[data-theme="dark"] .workflow-step li,
+        :root[data-theme="dark"] .tutorial-tooltip-toggle label,
+        :root[data-theme="dark"] .tooltip-description,
+        :root[data-theme="dark"] .page-header p,
+        :root[data-theme="dark"] .form-group small,
+        :root[data-theme="dark"] .cal-booking-label,
+        :root[data-theme="dark"] .cal-empty-state {
+            color: var(--ui-text-muted) !important;
+        }
+
+        :root[data-theme="dark"] .workflow-nav button,
+        :root[data-theme="dark"] .bulk-delete-actions button,
+        :root[data-theme="dark"] .filter-toggle,
+        :root[data-theme="dark"] .clear-filter {
+            background: var(--ui-surface-soft) !important;
+            background-color: var(--ui-surface-soft) !important;
+            color: var(--ui-text) !important;
+            border-color: var(--ui-border) !important;
+        }
+
+        :root[data-theme="dark"] .workflow-nav button.active,
+        :root[data-theme="dark"] .filter-toggle.is-open {
+            background: #1d4ed8 !important;
+            color: #ffffff !important;
+            border-color: #60a5fa !important;
+        }
+
+        :root[data-theme="dark"] .badge-light,
+        :root[data-theme="dark"] .badge.bg-light,
+        :root[data-theme="dark"] .badge.bg-secondary,
+        :root[data-theme="dark"] .filter-tag,
+        :root[data-theme="dark"] .tutorial-pill {
+            background: var(--ui-surface-soft) !important;
+            color: var(--ui-text) !important;
+            border-color: var(--ui-border) !important;
+        }
+
+        :root[data-theme="dark"] .form-control,
+        :root[data-theme="dark"] .form-select,
+        :root[data-theme="dark"] input,
+        :root[data-theme="dark"] select,
+        :root[data-theme="dark"] textarea {
+            background-color: var(--ui-bg) !important;
+            color: var(--ui-text) !important;
+            border-color: var(--ui-border) !important;
+        }
+
+        :root[data-theme="dark"] ::placeholder {
+            color: #b7c4d6 !important;
+            opacity: 1 !important;
+        }
+
+        :root[data-theme="dark"] .modal-content,
+        :root[data-theme="dark"] .modal-dialog-white,
+        :root[data-theme="dark"] .modal-body,
+        :root[data-theme="dark"] .modal-content-margin {
+            background: var(--ui-overlay-surface) !important;
+            background-color: var(--ui-overlay-surface) !important;
+            color: var(--ui-text) !important;
+            border-color: var(--ui-overlay-border) !important;
+        }
+
+        :root[data-theme="dark"] .modal-content h1,
+        :root[data-theme="dark"] .modal-content h2,
+        :root[data-theme="dark"] .modal-content h3,
+        :root[data-theme="dark"] .modal-content h4,
+        :root[data-theme="dark"] .modal-content h5,
+        :root[data-theme="dark"] .modal-content h6,
+        :root[data-theme="dark"] .modal-content label,
+        :root[data-theme="dark"] .modal-content p,
+        :root[data-theme="dark"] .modal-content span {
+            color: var(--ui-text) !important;
+        }
+
+        :root[data-theme="dark"] .guest-impressum-footer a {
+            color: #dbeafe !important;
+            border-bottom-color: #93c5fd !important;
+        }
+    </style>
+
 </body>
 </html>

Web/templates/change_password.html

@@ -26,18 +26,27 @@
         <form method="POST" action="{{ url_for('change_password') }}">
             <div class="form-group">
                 <label for="current_password">Aktuelles Passwort:</label>
-                <input type="password" id="current_password" name="current_password" required>
+                <div class="input-group">
+                    <input type="password" class="form-control" id="current_password" name="current_password" required>
+                    <button class="btn btn-outline-secondary" type="button" onclick="togglePasswordVisibility('current_password', this)">Anzeigen</button>
+                </div>
             </div>
             
             <div class="form-group">
                 <label for="new_password">Neues Passwort:</label>
-                <input type="password" id="new_password" name="new_password" required>
+                <div class="input-group">
+                    <input type="password" class="form-control" id="new_password" name="new_password" required>
+                    <button class="btn btn-outline-secondary" type="button" onclick="togglePasswordVisibility('new_password', this)">Anzeigen</button>
+                </div>
                 <small class="form-text text-muted">Das Passwort sollte mindestens 6 Zeichen lang sein.</small>
             </div>
             
             <div class="form-group">
                 <label for="confirm_password">Neues Passwort bestätigen:</label>
-                <input type="password" id="confirm_password" name="confirm_password" required>
+                <div class="input-group">
+                    <input type="password" class="form-control" id="confirm_password" name="confirm_password" required>
+                    <button class="btn btn-outline-secondary" type="button" onclick="togglePasswordVisibility('confirm_password', this)">Anzeigen</button>
+                </div>
             </div>
             
             <div class="form-actions">
@@ -48,6 +57,20 @@
     </div>
 </div>
 
+<script>
+    function togglePasswordVisibility(fieldId, button) {
+        var passwordInput = document.getElementById(fieldId);
+
+        if (passwordInput.type === 'password') {
+            passwordInput.type = 'text';
+            button.textContent = 'Verbergen';
+        } else {
+            passwordInput.type = 'password';
+            button.textContent = 'Anzeigen';
+        }
+    }
+</script>
+
 <style>
     .password-change-form {
         max-width: 500px;
@@ -74,7 +97,7 @@
         font-weight: bold;
     }
     
-    input[type="password"] {
+    .form-control {
         width: 100%;
         padding: 10px;
         border: 1px solid #ced4da;
@@ -122,6 +145,16 @@
     .btn-secondary:hover {
         background-color: #5a6268;
     }
+
+    .btn-outline-secondary {
+        border: 1px solid #ced4da;
+        background-color: #f8f9fa;
+        color: #495057;
+    }
+
+    .btn-outline-secondary:hover {
+        background-color: #e2e6ea;
+    }
     
     .alert {
         padding: 12px;
@@ -141,4 +174,4 @@
         border: 1px solid #c3e6cb;
     }
 </style>
-{% endblock %}
+{% endblock %}

Web/templates/edit_library.html

@@ -274,31 +274,31 @@
             {% if not show_library_features %}
             <!-- ================= SYSTEM FILTERS 1-3 (INVENTORY / OTHER ITEMS ONLY) ================= -->
             <div class="filter-inputs">
-                <h3>Unterrichtsfach (Filter 1):</h3>
-                <div class="multi-filter">
-                    {% for idx in range(4) %}
-                    <div class="form-group">
-                        <label for="filter1-{{ idx + 1 }}">Wert {{ idx + 1 }}:</label>
-                        <select id="filter1-{{ idx + 1 }}" name="filter" class="filter-dropdown-select" data-selected="{{ item.Filter[idx] if item.Filter and item.Filter|length > idx else '' }}">
-                            <option value="">-- Optional --</option>
-                        </select>
-                    </div>
-                    {% endfor %}
-                </div>
-
-                <h3>Jahrgangsstufe (Filter 2):</h3>
+                <h3>{{ filter_names.get('1', 'Fach') }}</h3>
                 <div class="multi-filter">
                     {% for idx in range(4) %}
                     <div class="form-group">
                         <label for="filter2-{{ idx + 1 }}">Wert {{ idx + 1 }}:</label>
-                        <select id="filter2-{{ idx + 1 }}" name="filter2" class="filter-dropdown-select" data-selected="{{ item.Filter2[idx] if item.Filter2 and item.Filter2|length > idx else '' }}">
+                        <select id="filter2-{{ idx + 1 }}" name="filter" class="filter-dropdown-select" data-selected="{{ item.Filter[idx] if item.Filter and item.Filter|length > idx else '' }}">
                             <option value="">-- Optional --</option>
                         </select>
                     </div>
                     {% endfor %}
                 </div>
 
-                <h3>Schlagwort (Filter 3):</h3>
+                <h3>{{ filter_names.get('2', 'Jahrgangsstufe') }}</h3>
+                <div class="multi-filter">
+                    {% for idx in range(4) %}
+                    <div class="form-group">
+                        <label for="filter1-{{ idx + 1 }}">Wert {{ idx + 1 }}:</label>
+                        <select id="filter1-{{ idx + 1 }}" name="filter2" class="filter-dropdown-select" data-selected="{{ item.Filter2[idx] if item.Filter2 and item.Filter2|length > idx else '' }}">
+                            <option value="">-- Optional --</option>
+                        </select>
+                    </div>
+                    {% endfor %}
+                </div>
+
+                <h3>{{ filter_names.get('3', 'Schlagwort') }}</h3>
                 <div class="multi-filter">
                     {% for idx in range(4) %}
                     <div class="form-group">

Web/templates/library_borrowings_admin.html

@@ -122,7 +122,7 @@
     letter-spacing: 0.04em;
     color: #64748b;
     background: var(--ui-surface-soft);
-    user-select: none; /* Verhindert Textmarkierung beim Klicken */
+    user-select: none;
   }
 
   .library-table tr:hover td {
@@ -151,7 +151,7 @@
   .badge-open { background: #fee2e2; color: #991b1b; }
   .badge-paid { background: #dcfce7; color: #166534; }
   .badge-damaged { background: #fee2e2; color: #991b1b; }
-  .badge-class { background: #f1f5f9; color: #475569; border: 1px solid #cbd5e1; } /* Neues Badge für Klasse */
+  .badge-class { background: #f1f5f9; color: #475569; border: 1px solid #cbd5e1; }
 
   .row-actions {
     display: flex;
@@ -168,6 +168,32 @@
     white-space: nowrap;
   }
 
+  .row-actions .btn-outline-danger {
+    color: #dc2626;
+    background-color: #fef2f2; /* Light red tint so it doesn't blend into the white table */
+    border: 2px solid #dc2626; /* Thicker, clear border */
+    padding: 6px 14px;
+    border-radius: 6px;
+    font-weight: bold;
+    font-size: 0.85rem;
+    cursor: pointer;
+    box-shadow: 0 2px 4px rgba(220, 38, 38, 0.1); /* Subtle shadow for depth */
+    transition: all 0.2s ease;
+  }
+
+  .row-actions .btn-outline-danger:hover {
+    background-color: #dc2626;
+    color: #ffffff;
+    box-shadow: 0 4px 8px rgba(220, 38, 38, 0.25);
+    transform: translateY(-1px); /* Slight lift effect on hover */
+  }
+
+  .row-actions .btn-outline-danger:active {
+    transform: translateY(0);
+    box-shadow: 0 1px 2px rgba(220, 38, 38, 0.15); /* Pressed state */
+  }
+  /* ------------------------------------------------------ */
+
   .muted {
     color: #6b7280;
     font-size: 0.92rem;
@@ -179,6 +205,122 @@
     color: #6b7280;
   }
 
+  :root[data-theme="dark"] .library-admin-hero {
+    background: linear-gradient(135deg, #172554 0%, #1e293b 100%);
+    border-color: var(--ui-border);
+    box-shadow: var(--ui-shadow-md);
+  }
+
+  :root[data-theme="dark"] .library-admin-hero p,
+  :root[data-theme="dark"] .summary-card .label,
+  :root[data-theme="dark"] .muted,
+  :root[data-theme="dark"] .empty-state {
+    color: var(--ui-text-muted) !important;
+  }
+
+  :root[data-theme="dark"] .summary-card,
+  :root[data-theme="dark"] .panel {
+    background: var(--ui-surface) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+    box-shadow: var(--ui-shadow-sm);
+  }
+
+  :root[data-theme="dark"] .summary-card .value,
+  :root[data-theme="dark"] .panel h2 {
+    color: var(--ui-title) !important;
+  }
+
+  :root[data-theme="dark"] .filter-bar input,
+  :root[data-theme="dark"] .filter-bar select {
+    background: var(--ui-bg) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+  }
+
+  :root[data-theme="dark"] .filter-bar input:focus,
+  :root[data-theme="dark"] .filter-bar select:focus {
+    outline: none;
+    border-color: #60a5fa !important;
+    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22);
+  }
+
+  :root[data-theme="dark"] .library-table,
+  :root[data-theme="dark"] .library-table td {
+    background: var(--ui-surface) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+  }
+
+  :root[data-theme="dark"] .library-table th {
+    background: var(--ui-surface-soft) !important;
+    color: var(--ui-text-muted) !important;
+    border-color: var(--ui-border) !important;
+  }
+
+  :root[data-theme="dark"] .library-table tr:hover td {
+    background: var(--ui-bg-accent) !important;
+  }
+
+  :root[data-theme="dark"] .badge-active {
+    background: #172554;
+    color: #bfdbfe;
+  }
+
+  :root[data-theme="dark"] .badge-planned {
+    background: #422006;
+    color: #fde68a;
+  }
+
+  :root[data-theme="dark"] .badge-completed,
+  :root[data-theme="dark"] .badge-paid {
+    background: #123524;
+    color: #b7f7ce;
+  }
+
+  :root[data-theme="dark"] .badge-open,
+  :root[data-theme="dark"] .badge-damaged {
+    background: #451a1a;
+    color: #fecaca;
+  }
+
+  :root[data-theme="dark"] .badge-class {
+    background: var(--ui-surface-soft);
+    color: var(--ui-text);
+    border-color: var(--ui-border);
+  }
+
+  :root[data-theme="dark"] .row-actions .btn-outline-danger {
+    background: #451a1a;
+    color: #fca5a5;
+    border-color: #f87171;
+  }
+
+  :root[data-theme="dark"] .row-actions .btn-outline-danger:hover {
+    background: #dc2626;
+    color: #ffffff;
+  }
+
+  :root[data-theme="dark"] #damage-invoice-modal > div,
+  :root[data-theme="dark"] #repair-action-modal > div {
+    background: var(--ui-overlay-surface) !important;
+    color: var(--ui-text) !important;
+    border: 1px solid var(--ui-overlay-border);
+  }
+
+  :root[data-theme="dark"] #damage-invoice-modal input,
+  :root[data-theme="dark"] #damage-invoice-modal textarea,
+  :root[data-theme="dark"] #repair-action-modal input {
+    background: var(--ui-bg) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+  }
+
+  :root[data-theme="dark"] #damage-invoice-modal p,
+  :root[data-theme="dark"] #repair-action-modal p {
+    color: var(--ui-text-muted) !important;
+  }
+
   @media (max-width: 900px) {
     .library-admin-hero {
       flex-direction: column;
@@ -193,6 +335,11 @@
       overflow-x: auto;
       white-space: nowrap;
     }
+
+    .library-admin-shell {
+      padding-left: 10px;
+      padding-right: 10px;
+    }
   }
 </style>
 
@@ -227,7 +374,7 @@
   <div class="filter-bar">
     <input id="library-search" type="text" placeholder="Nach Element, Benutzer, Klasse, Ausweis oder Rechnung suchen...">
 
-    <!-- NEU: Klassen-Filter -->
+    <!-- Klassen-Filter -->
     <select id="class-filter">
       <option value="all">Alle Klassen</option>
       {% set classes = [] %}
@@ -260,7 +407,6 @@
     <table class="library-table" id="loans-table">
       <thead>
         <tr>
-          <!-- NEU: onClick Handler zum Sortieren hinzugefügt -->
           <th style="cursor: pointer;" onclick="sortTable('loans-table', 0)">Status ↕</th>
           <th style="cursor: pointer;" onclick="sortTable('loans-table', 1)">Element ↕</th>
           <th style="cursor: pointer;" onclick="sortTable('loans-table', 2)">Benutzer ↕</th>
@@ -272,7 +418,6 @@
         </tr>
       </thead>
       <tbody>
-        <!-- NEU: data-klasse hinzugefügt -->
         {% for e in loan_entries %}
         <tr class="loan-row"
             data-borrow-id="{{ e.id }}"
@@ -305,7 +450,6 @@
           <td>
             <div><strong>{{ e.user }}</strong></div>
           </td>
-          <!-- NEU: Klasse Spalte -->
           <td>
             {% if e.klasse %}
               <span class="badge-pill badge-class">{{ e.klasse }}</span>
@@ -322,9 +466,6 @@
             {% if e.invoice_number %}
               <div class="mono">{{ e.invoice_number }}</div>
               <div class="muted">{{ e.invoice_amount }}</div>
-              <!--{% if e.invoice_corrections_count %}
-                <div class="muted" style="color:#7c2d12;">{{ e.invoice_corrections_count }} Korrektur(en)</div>
-              {% endif %} -->
               <div style="margin-top:6px;">
                 <a class="btn btn-outline-primary btn-sm" href="{{ url_for('admin_view_invoice_pdf', borrow_id=e.id) }}" target="_blank" rel="noopener">PDF öffnen</a>
               </div>
@@ -359,18 +500,9 @@
               {% endif %}
 
               {% if e.has_damage %}
-              <!-- Aufruf des Reparatur-Auswahl-Modals -->
               <button type="button" class="btn btn-warning btn-sm" onclick="openRepairModal('{{ e.item_id }}', '{{ e.item_code }}')">Reparieren / Ersetzen</button>
               {% endif %}
 
-              <!--{% if e.invoice_number %}
-              <form method="post" action="{{ url_for('admin_add_invoice_correction', borrow_id=e.id) }}" onsubmit="return confirm('Korrekturbuchung hinzufügen?');" style="display: flex; gap: 6px; align-items: center; flex-wrap: wrap;">
-                <input type="text" name="correction_reason" value="Korrektur zu {{ e.invoice_number }}" placeholder="Korrekturgrund" required style="padding:6px; border:1px solid #ddd; border-radius:6px; min-width:160px; max-width:180px;">
-                <input type="text" name="amount_delta" placeholder="z.B. -{{ e.invoice_amount }}" style="padding:6px; border:1px solid #ddd; border-radius:6px; width:120px;">
-                <button type="submit" class="btn btn-outline-danger btn-sm">Korrektur</button>
-              </form>
-              {% endif %}-->
-
               {% if e.status in ['active', 'planned'] %}
               <form method="post" action="{{ url_for('admin_reset_borrowing', borrow_id=e.id) }}" onsubmit="return confirm('Ausleihe zurücksetzen?');">
                 <button type="submit" class="btn btn-secondary btn-sm">Zurücksetzen</button>
@@ -394,7 +526,6 @@
     <table class="library-table" id="damaged-table">
       <thead>
         <tr>
-          <!-- NEU: onClick Handler zum Sortieren hinzugefügt -->
           <th style="cursor: pointer;" onclick="sortTable('damaged-table', 0)">Element ↕</th>
           <th style="cursor: pointer;" onclick="sortTable('damaged-table', 1)">Code ↕</th>
           <th style="cursor: pointer;" onclick="sortTable('damaged-table', 2)">Schaden ↕</th>
@@ -427,7 +558,6 @@
             <div class="row-actions" style="margin-bottom:8px;">
               <a class="btn btn-outline-secondary btn-sm" href="{{ url_for('library_item_invoices', item_id=item.id) }}">Rechnungen</a>
             </div>
-            <!-- Aufruf des Reparatur-Auswahl-Modals -->
             <button type="button" class="btn btn-warning btn-sm" onclick="openRepairModal('{{ item.id }}', '{{ item.code }}')">Reparieren / Ersetzen</button>
           </td>
         </tr>
@@ -480,6 +610,13 @@
         <textarea id="damage-invoice-reason" name="damage_reason" rows="5" required style="width:100%; padding:10px; border:1px solid #ddd; border-radius:6px; resize:vertical;" placeholder="Beschreiben Sie kurz den Schaden oder die Zerstörung."></textarea>
       </div>
 
+      {% if email_service_enabled %}
+      <div style="margin-bottom:16px;">
+        <label for="damage-invoice-recipient-email" style="display:block; font-weight:700; margin-bottom:6px;">Empfänger-E-Mail für den PDF-Versand</label>
+        <input id="damage-invoice-recipient-email" name="recipient_email" type="email" style="width:100%; padding:10px; border:1px solid #ddd; border-radius:6px;" placeholder="name@beispiel.de">
+      </div>
+      {% endif %}
+
       <div style="display:flex; flex-wrap:wrap; gap:16px; align-items:center; margin-bottom:18px;">
         <label style="display:flex; align-items:center; gap:8px;">
           <input id="damage-invoice-destroyed" type="checkbox" name="mark_destroyed" checked>
@@ -493,13 +630,16 @@
 
       <div style="display:flex; justify-content:flex-end; gap:10px;">
         <button type="button" class="btn btn-secondary" onclick="closeDamageInvoiceModal()">Abbrechen</button>
-        <button type="submit" class="btn btn-danger">PDF-Rechnung erstellen</button>
+        <button type="submit" class="btn btn-outline-danger" name="delivery" value="pdf">Nur PDF herunterladen</button>
+        {% if email_service_enabled %}
+        <button type="submit" class="btn btn-danger" name="delivery" value="email">PDF per E-Mail senden</button>
+        {% endif %}
       </div>
     </form>
   </div>
 </div>
 
-<!-- Neues Modal: Reparatur-Optionen (Reparieren, Ersetzen mit neuem Code_4, Löschen) -->
+<!-- Modal: Reparatur-Optionen -->
 <div id="repair-action-modal" role="dialog" aria-modal="true" aria-labelledby="repair-modal-title" style="display:none; position:fixed; inset:0; background:rgba(15,23,42,0.72); z-index:9999; padding:20px; overflow:auto;">
   <div style="max-width:540px; margin:60px auto; background: var(--ui-surface); border-radius:12px; padding:24px; box-shadow:0 20px 60px rgba(0,0,0,0.3);">
     <div style="display:flex; justify-content:space-between; align-items:center; gap:12px; margin-bottom:16px;">
@@ -529,7 +669,7 @@
 <script>
 (function() {
   const searchInput = document.getElementById('library-search');
-  const classFilter = document.getElementById('class-filter'); // NEU: Klassenfilter hinzugefügt
+  const classFilter = document.getElementById('class-filter');
   const statusFilter = document.getElementById('loan-status-filter');
   const damageFilter = document.getElementById('damage-filter');
   const loanRows = Array.from(document.querySelectorAll('.loan-row'));
@@ -546,10 +686,8 @@
   const damageInvoiceReason = document.getElementById('damage-invoice-reason');
   const damageInvoiceReplaceBtn = document.getElementById('damage-invoice-replace-btn');
 
-  // NEU: Globale Sortier-Richtungsobjekte
   let sortDirections = {};
 
-  // NEU: Sortier-Funktion
   window.sortTable = function(tableId, columnIndex) {
     const table = document.getElementById(tableId);
     const tbody = table.tBodies[0];
@@ -567,7 +705,6 @@
     const isAscending = sortDirections[sortKey];
     const multiplier = isAscending ? 1 : -1;
 
-    // Pfeil im Header aktualisieren
     const headers = table.querySelectorAll("th");
     headers.forEach(th => {
       if(th.innerHTML.includes('↕') || th.innerHTML.includes('▲') || th.innerHTML.includes('▼')) {
@@ -579,19 +716,15 @@
       currentTh.innerHTML = currentTh.innerHTML.replace('↕', isAscending ? '▲' : '▼');
     }
 
-    // Zeilen sortieren
     rows.sort((a, b) => {
       const cellA = a.cells[columnIndex].textContent.trim();
       const cellB = b.cells[columnIndex].textContent.trim();
       return cellA.localeCompare(cellB, 'de', { numeric: true, sensitivity: 'base' }) * multiplier;
     });
 
-    // Neu einfügen
     rows.forEach(row => tbody.appendChild(row));
   };
 
-
-  // Funktionen für das Reparatur-Modal
   window.openRepairModal = function(itemId, currentCode) {
     const modal = document.getElementById('repair-action-modal');
     const form = document.getElementById('repair-action-form');
@@ -724,26 +857,25 @@
     });
   }
 
-  // NEU: Kombinierte Filter-Funktion (Suche + Status + Schaden + Klasse)
   function applyFilters() {
     const search = (searchInput.value || '').trim().toLowerCase();
     const status = statusFilter.value;
     const damage = damageFilter.value;
-    const klasse = classFilter.value; // NEU
+    const klasse = classFilter.value;
 
     let visibleLoans = 0;
     loanRows.forEach(row => {
       const haystack = row.dataset.search || '';
       const rowStatus = row.dataset.status || '';
-      const rowKlasse = row.dataset.klasse || ''; // NEU
+      const rowKlasse = row.dataset.klasse || '';
       const hasDamage = row.dataset.hasDamage === '1';
 
       const searchMatch = !search || haystack.includes(search);
       const statusMatch = !status || rowStatus === status;
-      const classMatch = klasse === 'all' || rowKlasse === klasse; // NEU
+      const classMatch = klasse === 'all' || rowKlasse === klasse;
       const damageMatch = damage === 'all' || (damage === 'damage' && hasDamage) || (damage === 'clean' && !hasDamage);
 
-      const show = searchMatch && statusMatch && classMatch && damageMatch; // NEU
+      const show = searchMatch && statusMatch && classMatch && damageMatch;
       row.style.display = show ? '' : 'none';
       if (show) visibleLoans++;
     });
@@ -758,10 +890,6 @@
       const searchMatch = !search || haystack.includes(search);
       const statusMatch = !status || rowStatus === status || status === '';
       const damageMatch = damage === 'all' || (damage === 'damage' && hasDamage) || (damage === 'clean' && !hasDamage);
-
-      // Defekte-Medien-Tabelle hat keine verknüpfte "Klasse", deshalb blenden wir sie nur bei Klassen-Filter "all" ein,
-      // oder wenn gar nicht nach Klasse gefiltert wird, damit sie nicht verschwindet.
-      // Falls sie bei aktiver Klassensuche komplett verschwinden soll, passe die Bedingung an:
       const classMatch = klasse === 'all';
 
       const show = searchMatch && statusMatch && damageMatch && classMatch;
@@ -772,7 +900,7 @@
   }
 
   searchInput.addEventListener('input', applyFilters);
-  classFilter.addEventListener('change', applyFilters); // NEU
+  classFilter.addEventListener('change', applyFilters);
   statusFilter.addEventListener('change', applyFilters);
   damageFilter.addEventListener('change', applyFilters);
   applyFilters();

Web/templates/library_item_invoices.html

@@ -112,7 +112,73 @@
     padding: 36px 20px;
   }
 
+  :root[data-theme="dark"] .invoice-history-head {
+    background: linear-gradient(135deg, #172554 0%, #1e293b 100%);
+    border-color: var(--ui-border);
+    box-shadow: var(--ui-shadow-md);
+  }
+
+  :root[data-theme="dark"] .head-meta,
+  :root[data-theme="dark"] .muted,
+  :root[data-theme="dark"] .empty-state {
+    color: var(--ui-text-muted) !important;
+  }
+
+  :root[data-theme="dark"] .section-header {
+    color: var(--ui-title) !important;
+  }
+
+  :root[data-theme="dark"] .invoice-card {
+    background: var(--ui-surface) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+    box-shadow: var(--ui-shadow-sm);
+  }
+
+  :root[data-theme="dark"] .invoice-table,
+  :root[data-theme="dark"] .invoice-table td {
+    background: var(--ui-surface) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+  }
+
+  :root[data-theme="dark"] .invoice-table th {
+    background: var(--ui-surface-soft) !important;
+    color: var(--ui-text-muted) !important;
+    border-color: var(--ui-border) !important;
+  }
+
+  :root[data-theme="dark"] .invoice-table tr:hover td {
+    background: var(--ui-bg-accent) !important;
+  }
+
+  :root[data-theme="dark"] .badge-open {
+    background: #451a1a;
+    color: #fecaca;
+  }
+
+  :root[data-theme="dark"] .badge-paid,
+  :root[data-theme="dark"] .badge-completed {
+    background: #123524;
+    color: #b7f7ce;
+  }
+
+  :root[data-theme="dark"] .badge-active {
+    background: #172554;
+    color: #bfdbfe;
+  }
+
+  :root[data-theme="dark"] .badge-planned {
+    background: #422006;
+    color: #fde68a;
+  }
+
   @media (max-width: 900px) {
+    .invoice-history-shell {
+      padding-left: 10px;
+      padding-right: 10px;
+    }
+
     .invoice-table {
       display: block;
       overflow-x: auto;

Web/templates/license.html

@@ -174,29 +174,33 @@
 
 <style>
     #legalTabs .nav-link {
-        color: #495057;
+        color: var(--ui-text-muted);
+        border-color: transparent;
     }
     #legalTabs .nav-link.active {
         font-weight: 600;
-        color: #0d6efd;
+        color: #60a5fa;
+        background: var(--ui-surface-soft);
+        border-color: var(--ui-border) var(--ui-border) var(--ui-surface-soft);
     }
     .license-content {
         background-color: var(--ui-surface-soft);
         padding: 20px 30px;
         border-radius: 0 0 5px 5px;
-        border: 1px solid #dee2e6;
+        border: 1px solid var(--ui-border);
         border-top: none;
+        color: var(--ui-text);
     }
     .license-content h2 {
         margin-top: 10px;
     }
     .license-content h3 {
         margin-top: 1.4em;
-        color: #343a40;
+        color: var(--ui-title);
     }
     .license-content h4 {
         margin-top: 1.1em;
-        color: #495057;
+        color: var(--ui-text);
     }
     .license-content ol,
     .license-content ul {
@@ -208,7 +212,7 @@
     }
     .license-content hr {
         margin: 25px 0;
-        border-color: #dee2e6;
+        border-color: var(--ui-border);
     }
     .license-exception-notice {
         margin: 20px 0;
@@ -229,5 +233,61 @@
         font-weight: bold;
         color: #0d6efd;
     }
+
+    :root[data-theme="dark"] #legalTabs {
+        border-bottom-color: var(--ui-border);
+    }
+
+    :root[data-theme="dark"] #legalTabs .nav-link:hover {
+        color: #bfdbfe;
+        background: var(--ui-bg-accent);
+        border-color: var(--ui-border);
+    }
+
+    :root[data-theme="dark"] #legalTabs .nav-link.active {
+        color: #bfdbfe;
+        background: var(--ui-surface-soft);
+        border-color: var(--ui-border) var(--ui-border) var(--ui-surface-soft);
+    }
+
+    :root[data-theme="dark"] .license-content {
+        background: var(--ui-surface) !important;
+        color: var(--ui-text) !important;
+        border-color: var(--ui-border) !important;
+    }
+
+    :root[data-theme="dark"] .license-content p,
+    :root[data-theme="dark"] .license-content li {
+        color: var(--ui-text-muted);
+    }
+
+    :root[data-theme="dark"] .license-content strong,
+    :root[data-theme="dark"] .license-content h2,
+    :root[data-theme="dark"] .license-content h3,
+    :root[data-theme="dark"] .license-content h4 {
+        color: var(--ui-title) !important;
+    }
+
+    :root[data-theme="dark"] .license-content hr {
+        border-color: var(--ui-border);
+    }
+
+    :root[data-theme="dark"] .license-exception-notice {
+        background: #422006 !important;
+        border-color: #f59e0b !important;
+        border-left-color: #fb923c !important;
+        color: #fde68a !important;
+    }
+
+    :root[data-theme="dark"] .license-exception-notice h3,
+    :root[data-theme="dark"] .license-exception-notice p,
+    :root[data-theme="dark"] .license-exception-notice a {
+        color: #fde68a !important;
+    }
+
+    :root[data-theme="dark"] .license-content code {
+        background: #082f49;
+        color: #bae6fd;
+    }
 </style>
 {% endblock %}

Web/templates/logs.html

@@ -229,9 +229,11 @@
     
     #searchInput {
         padding: 8px;
-        border: 1px solid #ddd;
+        border: 1px solid var(--ui-border);
         border-radius: 4px;
         width: 200px;
+        background: var(--ui-bg);
+        color: var(--ui-text);
     }
     
     .date-range {
@@ -242,8 +244,17 @@
     
     .date-range input {
         padding: 8px;
-        border: 1px solid #ddd;
+        border: 1px solid var(--ui-border);
         border-radius: 4px;
+        background: var(--ui-bg);
+        color: var(--ui-text);
+    }
+
+    #searchInput:focus,
+    .date-range input:focus {
+        outline: none;
+        border-color: #60a5fa;
+        box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22);
     }
     .status-badge {
         display: inline-block;
@@ -308,13 +319,15 @@
     table {
         width: 100%;
         border-collapse: collapse;
-        box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
+        background: var(--ui-surface);
+        color: var(--ui-text);
+        box-shadow: var(--ui-shadow-sm);
     }
     
     th, td {
         padding: 12px 15px;
         text-align: left;
-        border-bottom: 1px solid #ddd;
+        border-bottom: 1px solid var(--ui-border);
     }
     
     th {
@@ -328,7 +341,7 @@
     }
     
     tbody tr:hover {
-        background-color: #f5f5f5;
+        background-color: var(--ui-bg-accent);
     }
     
     .navigation-buttons {
@@ -358,6 +371,52 @@
     .export-button:hover {
         background-color: #218838;
     }
+
+    :root[data-theme="dark"] .conflict-summary-banner {
+        background: #422006 !important;
+        border-color: #f59e0b !important;
+        border-left-color: #fb923c !important;
+        color: #fde68a !important;
+    }
+
+    :root[data-theme="dark"] .banner-close {
+        color: #fde68a;
+    }
+
+    :root[data-theme="dark"] .banner-close:hover {
+        color: #fff7ed;
+    }
+
+    :root[data-theme="dark"] .conflict-badge {
+        background: #422006 !important;
+        border-color: #f59e0b !important;
+        color: #fde68a !important;
+    }
+
+    :root[data-theme="dark"] #logsTable {
+        background: var(--ui-surface) !important;
+        color: var(--ui-text) !important;
+    }
+
+    :root[data-theme="dark"] #logsTable th {
+        background: #1d4ed8 !important;
+        color: #ffffff !important;
+        border-color: #60a5fa !important;
+    }
+
+    :root[data-theme="dark"] #logsTable th:hover {
+        background: #2563eb !important;
+    }
+
+    :root[data-theme="dark"] #logsTable td {
+        background: var(--ui-surface) !important;
+        color: var(--ui-text) !important;
+        border-color: var(--ui-border) !important;
+    }
+
+    :root[data-theme="dark"] #logsTable tbody tr:hover td {
+        background: var(--ui-bg-accent) !important;
+    }
     
     @media (max-width: 768px) {
         .filter-controls {
@@ -373,6 +432,17 @@
             width: 100%;
             justify-content: space-between;
         }
+
+        .navigation-buttons {
+            gap: 10px;
+            flex-wrap: wrap;
+        }
+
+        .navigation-buttons .button,
+        .navigation-buttons .export-button {
+            flex: 1 1 180px;
+            text-align: center;
+        }
     }
 </style>
 {% endblock %}

Web/templates/mahnungen_admin.html

@@ -179,13 +179,19 @@
                                     </td>
                                     <td class="text-end">
                                         <div class="btn-group" role="group">
+                                            {% if mail_service_enabled %}
                                             <button type="button" class="btn btn-sm btn-outline-primary"
                                                     onclick="openEmailModal('{{ item.id }}', '{{ item.schueler_name }}', '{{ item.email }}')">
                                                 <i class="bi bi-envelope"></i> E-Mail
                                             </button>
+                                            {% endif %}
                                             <button type="button" class="btn btn-sm btn-outline-warning text-dark"
                                                     onclick="resetMahnung('{{ item.id }}', '{{ item.schueler_name }}')">
-                                                <i class="bi bi-arrow-counterclockwise"></i> Zurücksetzen
+                                                <i class="bi bi-arrow-counterclockwise"></i> Zurücksetzen (14 Tage)
+                                            </button>
+                                            <button type="button" class="btn btn-sm btn-outline-warning text-dark"
+                                                    onclick="resetMahnungCustom('{{ item.id }}', '{{ item.schueler_name }}')">
+                                                <i class="bi bi-arrow-counterclockwise"></i> Zurücksetzen mit eigener Frist
                                             </button>
                                         </div>
                                     </td>
@@ -208,7 +214,7 @@
 
 <!-- E-Mail Modal -->
 <div class="modal fade" id="emailModal" tabindex="-1" aria-labelledby="emailModalLabel" aria-hidden="true">
-    <div class="modal-dialog">
+    <div class="modal-dialog modal-dialog-centered">
         <div class="modal-content">
             <div class="modal-header">
                 <h5 class="modal-title" id="emailModalLabel">Mahnungs-E-Mail senden</h5>
@@ -226,7 +232,7 @@
                         <input type="email" class="form-control" id="modalEmail" placeholder="E-Mail-Adresse eingeben...">
                     </div>
                     <div class="mb-3">
-                        <label for="modalMessage" class="form-label">Nachricht</label>
+                        <label for="modalMessage" class="form-label">Nachrichten-Text</label>
                         <textarea class="form-control" id="modalMessage" rows="4" placeholder="Optionaler Text..."></textarea>
                     </div>
                 </form>
@@ -239,6 +245,31 @@
     </div>
 </div>
 
+<!-- Custom Reset Days Modal -->
+<div class="modal fade" id="customResetModal" tabindex="-1" aria-labelledby="customResetModalLabel" aria-hidden="true">
+    <div class="modal-dialog modal-dialog-centered">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title" id="customResetModalLabel">Mahnung zurücksetzen</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Schließen"></button>
+            </div>
+            <div class="modal-body">
+                <input type="hidden" id="resetModalLoanId">
+                <p>Möchten Sie die Mahnung für <strong id="resetModalStudentName"></strong> wirklich zurücksetzen?</p>
+                <p class="text-muted small">Dadurch wird die Mahnstufe auf 0 gesetzt und der Schülerausweis entsperrt.</p>
+                <div class="mb-3">
+                    <label for="resetModalDays" class="form-label">Frist verlängern um (Tage):</label>
+                    <input type="number" class="form-control" id="resetModalDays" value="14" min="1">
+                </div>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Abbrechen</button>
+                <button type="button" class="btn btn-warning" onclick="submitCustomReset()">Mahnung zurücksetzen</button>
+            </div>
+        </div>
+    </div>
+</div>
+
 <script>
 function openEmailModal(loanId, studentName, studentEmail) {
     document.getElementById('modalLoanId').value = loanId;
@@ -254,6 +285,7 @@ function submitEmailMahnung() {
     const loanId = document.getElementById('modalLoanId').value;
     const email = document.getElementById('modalEmail').value;
     const message = document.getElementById('modalMessage').value;
+    const csrfToken = document.querySelector('meta[name="csrf-token"]')?.content || '';
 
     if (!email) {
         alert('Bitte geben Sie eine gültige E-Mail-Adresse ein.');
@@ -262,7 +294,7 @@ function submitEmailMahnung() {
 
     fetch('/mahnungen_send_email', {
         method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
+        headers: { 'Content-Type': 'application/json', 'X-CSRFToken': csrfToken },
         body: JSON.stringify({ loan_id: loanId, email: email, message: message })
     })
     .then(response => response.json())
@@ -287,16 +319,57 @@ function resetMahnung(loanId, studentName) {
         return;
     }
 
-    fetch('/mahnungen_reset', {
+    const csrfToken = document.querySelector('meta[name="csrf-token"]')?.content || '';
+
+    fetch('/mahnungen_reset/14', {
         method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
+        headers: { 'Content-Type': 'application/json', 'X-CSRFToken': csrfToken },
         body: JSON.stringify({ loan_id: loanId })
     })
     .then(response => response.json())
     .then(data => {
         if (data.success) {
             alert(data.message);
-            location.reload(); // Seite neu laden, um die aktualisierte Ansicht zu sehen
+            location.reload();
+        } else {
+            alert('Fehler: ' + data.message);
+        }
+    })
+    .catch(error => {
+        alert('Fehler beim Senden der Anfrage.');
+        console.error(error);
+    });
+}
+
+function resetMahnungCustom(loanId, studentName) {
+    document.getElementById('resetModalLoanId').value = loanId;
+    document.getElementById('resetModalStudentName').textContent = studentName;
+    document.getElementById('resetModalDays').value = 14;
+
+    var customModal = new bootstrap.Modal(document.getElementById('customResetModal'));
+    customModal.show();
+}
+
+function submitCustomReset() {
+    const loanId = document.getElementById('resetModalLoanId').value;
+    const daysToExtend = parseInt(document.getElementById('resetModalDays').value, 10);
+    const csrfToken = document.querySelector('meta[name="csrf-token"]')?.content || '';
+
+    if (isNaN(daysToExtend) || daysToExtend < 1) {
+        alert('Bitte geben Sie eine gültige Anzahl an Tagen ein.');
+        return;
+    }
+
+    fetch(`/mahnungen_reset/${daysToExtend}`, {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json', 'X-CSRFToken': csrfToken },
+        body: JSON.stringify({ loan_id: loanId })
+    })
+    .then(response => response.json())
+    .then(data => {
+        if (data.success) {
+            alert(data.message);
+            location.reload();
         } else {
             alert('Fehler: ' + data.message);
         }

Web/templates/main_admin.html

@@ -266,6 +266,11 @@
         border-radius: 4px;
     }
 
+    .code-search-label {
+        color: #b93845;
+        font-weight: 700;
+    }
+
     .search-button {
         padding: 8px 12px;
         background-color: #007bff;
@@ -284,10 +289,10 @@
     }
 
     #code-search.searching {
-        background-color: #fff3cd;
+        background-color: #fff5f5;
         transition: background-color 0.3s;
-        border: 2px solid #ffc107;
-        box-shadow: 0 0 8px rgba(255, 193, 7, 0.5);
+        border: 2px solid #d65a62;
+        box-shadow: 0 0 8px rgba(190, 55, 66, 0.28);
     }
 
     /* QR Scanner styles */
@@ -562,26 +567,55 @@
        align-items: center;
     }
    
-    .navigation-buttons {
-        display: flex;
-        justify-content: center;
-        gap: 10px;
+    .items-navigation {
+        display: grid;
+        grid-template-columns: 42px minmax(0, 1fr) 42px;
+        align-items: center;
+        column-gap: 16px;
+        width: calc(100% + 116px);
+        margin-left: -58px;
         margin-top: 20px;
     }
 
-    .navigation-buttons .prev-button,
-    .navigation-buttons .next-button {
-        background-color: #007bff;
-        color: #fff;
-        border: none;
-        cursor: pointer;
-        padding: 10px;
-        border-radius: 5px;
+    .navigation-button-slot {
+        display: flex;
+        justify-content: center;
     }
 
-    .navigation-buttons .prev-button:hover,
-    .navigation-buttons .next-button:hover {
-        background-color: #0056b3;
+    .navigation-button {
+        display: inline-flex;
+        align-items: center;
+        justify-content: center;
+        width: 42px;
+        height: 42px;
+        padding: 0;
+        background: var(--ui-surface-soft);
+        color: var(--ui-title);
+        border: 1px solid var(--ui-border);
+        box-shadow: var(--ui-shadow-sm);
+        cursor: pointer;
+        border-radius: 10px;
+        font-size: 1.15rem;
+        font-weight: 700;
+        line-height: 1;
+        transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease, border-color 160ms ease;
+        z-index: 1;
+    }
+
+    .navigation-button:hover {
+        background: var(--ui-surface);
+        border-color: var(--module-accent-color);
+        box-shadow: var(--ui-shadow-md);
+        transform: translateY(-2px) scale(1.04);
+    }
+
+    .navigation-button:active {
+        transform: translateY(0) scale(0.96);
+    }
+
+    .navigation-button:focus-visible {
+        outline: 3px solid rgba(37, 99, 235, 0.35);
+        outline-offset: 3px;
     }
 
     /* Modal styles */
@@ -744,15 +778,15 @@
     }
 
     .code-match {
-        border: 2px solid #17a2b8 !important;
-        box-shadow: 0 0 15px rgba(23, 162, 184, 0.5) !important;
+        border: 2px solid #d65a62 !important;
+        box-shadow: 0 0 15px rgba(190, 55, 66, 0.28) !important;
         position: relative;
         z-index: 5;
     }
 
     .exact-code-match {
-        border: 3px solid #28a745 !important;
-        box-shadow: 0 0 20px rgba(40, 167, 69, 0.7) !important;
+        border: 3px solid #b93845 !important;
+        box-shadow: 0 0 20px rgba(185, 56, 69, 0.42) !important;
         position: relative;
         z-index: 11;
     }
@@ -1633,7 +1667,13 @@
         }
         
         /* Navigation buttons mobile */
-        .navigation-buttons {
+        .items-navigation {
+            display: block !important;
+            width: 100% !important;
+            margin-left: 0 !important;
+        }
+
+        .navigation-button-slot {
             display: none !important; /* Hide horizontal navigation on mobile */
         }
         
@@ -1946,7 +1986,7 @@
     /* Standardized button styles across the application */
     .search-button, .scan-button, .filter-toggle, .clear-filter, 
     .add-new-btn, .popup-close-button, .prev-image-button, .next-image-button,
-    .navigation-buttons .prev-button, .navigation-buttons .next-button {
+    .navigation-button {
         display: inline-flex;
         align-items: center;
         justify-content: center;
@@ -1971,6 +2011,122 @@
         box-sizing: border-box;
         white-space: nowrap;
     }
+
+    /* iPad: use the wider canvas for cards, filters, forms, and image previews. */
+    @media screen and (min-width: 768px) and (max-width: 1180px) {
+        .admin-content-container {
+            width: min(100%, 1120px) !important;
+            max-width: 1120px !important;
+            margin: 0 auto !important;
+            padding: 20px 24px 28px !important;
+            box-sizing: border-box !important;
+        }
+
+        .filter-container {
+            display: grid !important;
+            grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
+            align-items: start;
+            gap: 14px !important;
+        }
+
+        .filter-group {
+            min-width: 0 !important;
+            width: auto !important;
+            padding: 14px !important;
+        }
+
+        .filter-group.search-field {
+            grid-column: span 2;
+        }
+
+        .search-container {
+            gap: 8px;
+        }
+
+        .search-container input,
+        .form-group input,
+        .form-group select,
+        .form-group textarea {
+            min-height: 44px;
+            font-size: 16px;
+        }
+
+        .items-container {
+            display: grid !important;
+            grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
+            gap: 18px !important;
+            padding: 14px 0 24px !important;
+            overflow: visible !important;
+            scroll-snap-type: none !important;
+        }
+
+        .item-card {
+            width: auto !important;
+            max-width: none !important;
+            min-width: 0 !important;
+            padding: 16px !important;
+            scroll-snap-align: none !important;
+        }
+
+        .item-card .image-container {
+            width: 100% !important;
+            max-width: none !important;
+            height: auto !important;
+            aspect-ratio: 4 / 3;
+            margin: 10px 0 14px !important;
+            overflow: hidden !important;
+            border: 1px solid var(--ui-border);
+            border-radius: 12px !important;
+            background: var(--ui-surface-soft);
+        }
+
+        .item-card .image-container .item-image,
+        .item-card .image-container .video-container {
+            width: 100% !important;
+            height: 100% !important;
+        }
+
+        .item-card .image-container .item-image {
+            object-fit: contain !important;
+            object-position: center;
+            background: var(--ui-surface-soft);
+        }
+
+        .item-card .image-container .item-image[data-index="0"] {
+            display: block !important;
+            position: relative !important;
+            opacity: 1 !important;
+        }
+
+        .item-card .image-container .item-image:not([data-index="0"]) {
+            display: none !important;
+        }
+
+        .item-card .image-container .video-container {
+            position: relative;
+            display: block !important;
+        }
+
+        .form-row {
+            display: grid;
+            grid-template-columns: repeat(2, minmax(0, 1fr));
+            gap: 16px;
+        }
+
+        .form-actions {
+            flex-wrap: wrap;
+            gap: 12px;
+        }
+
+        .form-actions > * {
+            min-height: 44px;
+        }
+
+        #item-modal .modal-content {
+            width: min(92vw, 880px);
+        }
+    }
+
 </style>
 <style>
     .bookmark-btn { position:absolute; top:8px; right:8px; width:46px; height:46px; background:rgba(255,255,255,.92); border:2px solid #ffc107; border-radius:50%; font-size:1.65rem; line-height:1; display:flex; align-items:center; justify-content:center; cursor:pointer; color:#ffc107; box-shadow:0 2px 6px rgba(0,0,0,.18); transition:background .2s, transform .15s, color .2s; z-index:6; pointer-events:auto; }
@@ -2343,7 +2499,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
         <div class="filter-container">
             <div class="filter-group">
                 <div class="filter-header">
-                    <label>Unterrichtsfach:</label>
+                    <label>{{ filter_names.get('1', 'Fach') }}</label>
                     <button type="button" class="filter-toggle" onclick="toggleFilterDropdown('filter1-dropdown')">▼</button>
                     <button type="button" class="clear-filter" onclick="clearFilter(1)">Clear</button>
                 </div>
@@ -2357,7 +2513,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
             
             <div class="filter-group">
                 <div class="filter-header">
-                    <label>Jahrgangsstufe:</label>
+                    <label>{{ filter_names.get('2', 'Klassenstufe') }}</label>
                     <button type="button" class="filter-toggle" onclick="toggleFilterDropdown('filter2-dropdown')">▼</button>
                     <button type="button" class="clear-filter" onclick="clearFilter(2)">Clear</button>
                 </div>
@@ -2371,7 +2527,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
             
             <div class="filter-group">
                 <div class="filter-header">
-                    <label>Schlagwort:</label>
+                    <label>{{ filter_names.get('3', 'Schlagwort') }}</label>
                     <button type="button" class="filter-toggle" onclick="toggleFilterDropdown('filter3-dropdown')">▼</button>
                     <button type="button" class="clear-filter" onclick="clearFilter(3)">Clear</button>
                 </div>
@@ -2385,7 +2541,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
 
             <div class="filter-group search-field">
                 <div class="filter-header">
-                    <label for="code-search">Code suchen:</label>
+                    <label class="code-search-label" for="code-search">Code suchen:</label>
                     <button type="button" class="clear-filter" onclick="clearCodeSearch()">Clear</button>
                 </div>
                 <div class="search-container">
@@ -2420,19 +2576,23 @@ document.addEventListener('DOMContentLoaded', ()=>{
         <div id="table-view-header" class="table-view-header" aria-hidden="true">
             <span>Name</span>
             <span>Ort</span>
-            <span>Unterrichtsfach</span>
-            <span>Jahrgangsstufe</span>
-            <span>Schlagwort</span>
+            <span>{{ filter_names.get('1', 'Fach') }}</span>
+            <span>{{ filter_names.get('2', 'Jahrgangsstufe') }}</span>
+            <span>{{ filter_names.get('3', 'Schlagwort') }}</span>
             <span>Barcode</span>
             <span>Anzahl</span>
         </div>
 
-        <div id="items-container" class="items-container">
-            <!-- Items will be dynamically loaded here -->
-        </div>
-        <div class="navigation-buttons">
-            <button class="prev-button" onclick="scrollPrev()">&#10094;</button>
-            <button class="next-button" onclick="scrollNext()">&#10095;</button>
+        <div class="items-navigation">
+            <div class="navigation-button-slot">
+                <button class="navigation-button prev-button" type="button" onclick="scrollPrev()" aria-label="Vorherige Elemente">&#10094;</button>
+            </div>
+            <div id="items-container" class="items-container">
+                <!-- Items will be dynamically loaded here -->
+            </div>
+            <div class="navigation-button-slot">
+                <button class="navigation-button next-button" type="button" onclick="scrollNext()" aria-label="Nächste Elemente">&#10095;</button>
+            </div>
         </div>
     </div>
     <div id="item-modal" class="item-modal">
@@ -3206,9 +3366,12 @@ document.addEventListener('DOMContentLoaded', ()=>{
         });
     }
 
-    function loadItems(offset = 0, append = false) {
+    function loadItems(offset = 0, append = false, searchTerm = '', searchScope = 'all') {
         // Keep list payload lightweight; full details are fetched on-demand in openItemQuick.
-        return fetch(`{{ url_for('get_items') }}?offset=${offset}&limit=${MAIN_ADMIN_ITEMS_PAGE_SIZE}&light_mode=true`)
+        const searchParams = searchTerm
+            ? `&search=${encodeURIComponent(searchTerm)}&search_scope=${encodeURIComponent(searchScope)}`
+            : '';
+        return fetch(`{{ url_for('get_items') }}?offset=${offset}&limit=${MAIN_ADMIN_ITEMS_PAGE_SIZE}&light_mode=true${searchParams}`)
             .then(response => response.json())
             .then(data => {
                 const itemsContainer = document.querySelector('#items-container');
@@ -3241,7 +3404,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
                 }
                 pageItems.sort((a, b) => {
                     const nameA = a.Name ? a.Name.toLowerCase() : '';
-                    const nameB = a.Name ? a.Name.toLowerCase() : '';
+                    const nameB = b.Name ? b.Name.toLowerCase() : '';
                     return nameA.localeCompare(nameB);
                 });
 
@@ -3285,6 +3448,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
                         card.dataset.code = (item.Code_4 !== undefined && item.Code_4 !== null) ? 
                           String(item.Code_4).trim() : '';
                         card.dataset.groupCodes = JSON.stringify(Array.isArray(item.GroupedAllCodes) ? item.GroupedAllCodes : []);
+                                                card.dataset.groupedUnits = JSON.stringify(Array.isArray(item.GroupedUnitStates) ? item.GroupedUnitStates : []);
         
                         // Add filter values to their respective sets
                         filter1Array.forEach(value => {
@@ -3394,9 +3558,9 @@ document.addEventListener('DOMContentLoaded', ()=>{
                             <div class="card-content" data-item-id="${item._id}">
                                 <h3 class="item-col-name">${item.Name}</h3>
                                 <p class="item-col-location"><strong>Ort:</strong> ${item.Ort || '-'}</p>
-                                <p class="item-col-filter1"><strong>Unterrichtsfach:</strong> ${filter1Display}${filter1More}</p>
-                                <p class="item-col-filter2"><strong>Jahrgangsstufe:</strong> ${filter2Display}${filter2More}</p>
-                                <p class="item-col-filter3"><strong>Schlagwort:</strong> ${filter3Display}${filter3More}</p>
+                                <p class="item-col-filter1"><strong>{{ filter_names.get('1', 'Jahrgangsstufe') }}:</strong> ${filter1Display}${filter1More}</p>
+                                <p class="item-col-filter2"><strong>{{ filter_names.get('2', 'Jahrgangsstufe') }}:</strong> ${filter2Display}${filter2More}</p>
+                                <p class="item-col-filter3"><strong>{{ filter_names.get('3', 'Jahrgangsstufe') }}:</strong> ${filter3Display}${filter3More}</p>
                                 <p class="item-col-code"><strong>Barcode:</strong> ${item.Code_4 || '-'}</p>
                                 <p class="item-col-count"><strong>Anzahl:</strong> ${groupedCount}</p>
                                 ${hasDamage ? `<div class="damage-badge">${damageCount > 0 ? `Schäden gemeldet: ${damageCount}` : 'Schäden gemeldet'}</div>` : ''}
@@ -3415,17 +3579,27 @@ document.addEventListener('DOMContentLoaded', ()=>{
                                 </div>
                                 {% if current_permissions.actions.get('can_borrow', False) %}
                                 ${isAvailableForBorrow && !item.BlockedNow ? 
-                                    `<form method="POST" action="{{ url_for('ausleihen', id='') }}${item._id}">
+                                    `<form method="POST" action="{{ url_for('ausleihen', id='') }}${item._id}" data-grouped-borrow-form>
                                         ${isGroupedItem ? `
                                         <div class="grouped-borrow-controls" style="display:flex; gap:8px; flex-wrap:wrap; margin-bottom:8px; align-items:center;">
-                                            <label style="font-size:0.85rem; margin:0;">Anzahl:</label>
-                                            <input type="number" name="exemplare_count" min="1" max="${availableGroupedCount}" value="1" style="width:74px; padding:4px;">
-                                            <label style="font-size:0.85rem; margin:0;">oder Code:</label>
-                                            <select id="specific-item-card-${item._id}" name="specific_item_id" style="max-width:190px; padding:4px;">
-                                                <option value="">Automatisch wählen</option>
-                                                ${groupedAvailableUnits.map(unit => `<option value="${unit.id}">${unit.code}</option>`).join('')}
-                                            </select>
-                                        </div>` : ''}
+    <label style="font-size:0.85rem; margin:0;">Anzahl:</label>
+    <input type="number"
+           name="exemplare_count"
+           min="1"
+           max="${availableGroupedCount}"
+           value="1"
+           style="width:74px; padding:4px;"
+           oninput="if(this.value){ this.form.querySelector('[name=specific_item_id]').value = ''; }">
+
+    <label style="font-size:0.85rem; margin:0;">oder Code:</label>
+    <select id="specific-item-card-${item._id}"
+            name="specific_item_id"
+            style="max-width:190px; padding:4px;"
+            onchange="if(this.value !== ''){ this.form.querySelector('[name=exemplare_count]').value = '1'; }">
+        <option value="">Automatisch wählen</option>
+        ${groupedAvailableUnits.map(unit => `<option value="${unit.id}">${unit.code}</option>`).join('')}
+    </select>
+</div>` : ''}
                                         <button class="ausleihen" type="submit">Ausleihen</button>
                                     </form>` 
                                 : isBorrowedByMe ?
@@ -3435,6 +3609,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
                                 :
                                     `<button class="ausleihen disabled-button" disabled>${item.BlockedNow ? 'Reserviert' : 'Ausgeliehen'}</button>`
                                 }
+                                ${isGroupedItem ? '<div class="grouped-searched-action" data-grouped-searched-action style="display:none;"></div>' : ''}
                                 {% endif %}
                                 {% if current_permissions.actions.get('can_delete', False) %}
                                 <form method="POST" action="{{ url_for('delete_item', id='') }}${item._id}" style="display:inline;" onsubmit="return confirm('Sind Sie sicher, dass Sie dieses Objekt löschen möchten?')">
@@ -3669,13 +3844,66 @@ document.addEventListener('DOMContentLoaded', ()=>{
             card.classList.remove('highlight-item', 'code-match', 'exact-code-match');
         });
         
-        applyFilters(true);
+        if (codeSearchTerm) {
+            loadItems(0, false, codeSearchTerm, 'all');
+        } else {
+            loadItems();
+        }
         
         setTimeout(() => {
             searchInput.classList.remove('searching');
         }, 500);
     }
 
+    function syncSearchedGroupedAction(card, searchTerm, exactCodeMatch) {
+        const searchedAction = card.querySelector('[data-grouped-searched-action]');
+        if (!searchedAction) return;
+
+        const borrowForm = card.querySelector('[data-grouped-borrow-form]');
+        searchedAction.style.display = 'none';
+        searchedAction.innerHTML = '';
+
+        if (!exactCodeMatch || !searchTerm) {
+            if (borrowForm) borrowForm.style.display = '';
+            return;
+        }
+
+        let groupedUnits = [];
+        try {
+            groupedUnits = JSON.parse(card.dataset.groupedUnits || '[]');
+        } catch {
+            groupedUnits = [];
+        }
+
+        const matchedUnit = groupedUnits.find(unit =>
+            String(unit.code || '').trim().toLowerCase() === searchTerm
+        );
+        if (!matchedUnit) return;
+
+        if (matchedUnit.available) {
+            if (borrowForm) borrowForm.style.display = '';
+            const specificSelect = borrowForm?.querySelector('[name="specific_item_id"]');
+            if (specificSelect) {
+                specificSelect.value = matchedUnit.id;
+            }
+            return;
+        }
+
+        if (borrowForm) borrowForm.style.display = 'none';
+        searchedAction.style.display = 'block';
+        if (matchedUnit.borrowed_by_current_user) {
+            searchedAction.innerHTML = `
+                <form method="POST" action="/zurueckgeben/${encodeURIComponent(matchedUnit.id)}">
+                    <button class="ausleihen" type="submit">Zurückgeben (${escapeHtml(matchedUnit.code || 'Code')})</button>
+                </form>`;
+        } else {
+            searchedAction.innerHTML = `
+                <button class="ausleihen disabled-button" type="button" disabled>
+                    ${escapeHtml(matchedUnit.code || 'Code')} ausgeliehen
+                </button>`;
+        }
+    }
+
     function applyFilters(isDirectSearch = false) {
         const itemsContainer = document.querySelector('#items-container');
         const items = itemsContainer.querySelectorAll('.item-card');
@@ -3722,6 +3950,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
             if (passesAllFilters && matchesCodeSearch && matchesDesc && (!favoritesOnly || isFavoriteCard)) {
                 item.style.display = 'block';
                 visibleCount++;
+                syncSearchedGroupedAction(item, searchTerm, exactCodeMatch);
                 
                 if (exactCodeMatch) {
                     item.classList.add('highlight-item', 'exact-code-match');
@@ -3746,6 +3975,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
                 }
             } else {
                 item.style.display = 'none';
+                syncSearchedGroupedAction(item, '', false);
             }
         });
 
@@ -3820,7 +4050,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
             card.classList.remove('highlight-item', 'code-match', 'exact-code-match');
         });
         
-        applyFilters();
+        loadItems();
     }
 
     // Description search using backend substring match
@@ -3829,21 +4059,12 @@ document.addEventListener('DOMContentLoaded', ()=>{
         const term = (input?.value || '').trim();
         if (!term){
             descSearchIds = null;
-            applyFilters(true);
+            loadItems(0, false, codeSearchTerm, 'all');
             return;
         }
         input?.classList.add('searching');
-        fetch(`/search_word/${encodeURIComponent(term)}`)
-            .then(r=>r.json())
-            .then(data=>{
-                if (data && data.success && Array.isArray(data.response)){
-                    descSearchIds = new Set(data.response.map(String));
-                } else {
-                    descSearchIds = new Set();
-                }
-                applyFilters(true);
-            })
-            .catch(()=>{ descSearchIds = new Set(); applyFilters(true); })
+        descSearchIds = null;
+        loadItems(0, false, term, 'title_description')
             .finally(()=>{ setTimeout(()=> input?.classList.remove('searching'), 300); });
     }
 
@@ -3851,7 +4072,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
         const input = document.getElementById('desc-search');
         if (input) input.value = '';
         descSearchIds = null;
-        applyFilters();
+        loadItems(0, false, codeSearchTerm, 'all');
     }
 
     // Open item modal with fresh details from backend.
@@ -4053,21 +4274,29 @@ document.addEventListener('DOMContentLoaded', ()=>{
                 const badgeText = entry.type === 'repair' ? 'Repariert' : 'Schaden';
                 const metaLine = entry.meta ? `<div style="font-size:0.84rem;color:#4b5563;">${escapeHtml(entry.meta)}</div>` : '';
                 return `
-                    <div style="border:1px solid var(--ui-border);border-radius:8px;padding:10px;background:var(--ui-surface);display:grid;gap:6px;">
-                        <div style="display:flex;flex-wrap:wrap;gap:8px;align-items:center;">
-                            <span style="display:inline-block;padding:2px 8px;border-radius:999px;font-size:0.75rem;font-weight:700;${badgeStyle}">${badgeText}</span>
-                            <span style="font-size:0.84rem;color:#475569;">${entry.dateLabel}</span>
+                    <div class="damage-history-entry ${entry.type === 'repair' ? 'is-repair' : 'is-report'}">
+                        <div class="damage-history-entry-head">
+                            <span class="damage-history-badge" style="${badgeStyle}">${badgeText}</span>
+                            <time>${entry.dateLabel}</time>
                         </div>
-                        <div style="font-size:0.9rem;color:#0f172a;"><strong>Von:</strong> ${entry.actor}</div>
-                        <div style="font-size:0.92rem;color:#1f2937;">${entry.description}</div>
-                        ${metaLine}
+                        <div class="damage-history-actor"><strong>Von</strong>${entry.actor}</div>
+                        <div class="damage-history-description">${entry.description}</div>
+                        ${entry.meta ? `<div class="damage-history-meta">${escapeHtml(entry.meta)}</div>` : ''}
                     </div>
                 `;
             }).join('')
             : '<div style="font-size:0.92rem;color:#64748b;">Keine Beschädigungs-Historie vorhanden.</div>';
         
         modalContent.innerHTML = `
-            <h2>${escapeHtml(item.Name || '')}</h2>
+            <div class="item-modal-heading">
+                <div>
+                    <span class="item-modal-eyebrow">Objektdetails</span>
+                    <h2>${escapeHtml(item.Name || '')}</h2>
+                </div>
+                <span class="item-modal-status ${isBorrowed ? 'is-borrowed' : 'is-available'}">
+                    <span class="item-modal-status-dot"></span>${isBorrowed ? 'Ausgeliehen' : 'Verfügbar'}
+                </span>
+            </div>
             ${borrowerInfoHtml}
             ${appointmentInfoHtml}
                 
@@ -4080,7 +4309,7 @@ document.addEventListener('DOMContentLoaded', ()=>{
                 ` : ''}
             </div>
 
-            <div class="modal-details">
+            <div class="modal-details item-modal-details">
                 <div class="detail-group">
                     <div class="detail-label">Ort:</div>
                     <div class="detail-value">${escapeHtml(item.Ort || '-')}</div>
@@ -4094,17 +4323,17 @@ document.addEventListener('DOMContentLoaded', ()=>{
                 </div>
 
                 <div class="detail-group">
-                    <div class="detail-label">Unterrichtsfach:</div>
+                    <div class="detail-label">{{ filter_names.get('1', 'Unterrichtsfach') }}:</div>
                     <div class="detail-value">${escapeHtml(filter1Array.join(', ') || '-')}</div>
                 </div>
 
                 <div class="detail-group">
-                    <div class="detail-label">Jahrgangsstufe:</div>
+                    <div class="detail-label">{{ filter_names.get('2', 'Jahrgangsstufe') }}:</div>
                     <div class="detail-value">${escapeHtml(filter2Array.join(', ') || '-')}</div>
                 </div>
 
                 <div class="detail-group">
-                    <div class="detail-label">Schlagwort:</div>
+                    <div class="detail-label">{{ filter_names.get('3', 'Schlagwort') }}:</div>
                     <div class="detail-value">${escapeHtml(filter3Array.join(', ') || '-')}</div>
                 </div>
 
@@ -4135,22 +4364,22 @@ document.addEventListener('DOMContentLoaded', ()=>{
                 </div>
             
                 {% if current_permissions.actions.get('can_view_logs', False) %}
-                <div class="detail-group full-width" style="margin-top:12px;">
+                <div class="detail-group full-width item-modal-history" style="margin-top:12px;">
                     <div class="detail-label" style="font-weight:600; color:#374151;">Beschädigungs-Historie</div>
                     <div class="detail-value">
-                        <button id="toggle-damage-history" class="calendar-toggle-btn" style="margin-bottom:12px; padding:10px 16px; border-radius:6px; background:#f3f4f6; border:1px solid #d1d5db; font-weight:500; cursor:pointer; display:inline-flex; align-items:center; gap:8px; transition:all 0.2s ease;">
+                        <button id="toggle-damage-history" class="calendar-toggle-btn modal-section-toggle" style="margin-bottom:12px;">
                             <span>🛠️</span>
                             <span id="toggle-damage-history-text">Historie anzeigen</span>
                         </button>
-                        <div id="damage-history-panel" style="display:none; margin-top:8px; border:1px solid #e7edf5; border-radius:10px; padding:12px; background: var(--ui-surface-soft);">
-                            <div style="display:grid; gap:10px;">${damageHistoryHtml}</div>
+                        <div id="damage-history-panel" class="modal-history-panel" style="display:none;">
+                            <div class="damage-history-list">${damageHistoryHtml}</div>
                         </div>
                     </div>
                 </div>
                 {% endif %}
             
                 <div class="detail-group full-width" style="margin-top:12px; padding:10px; border:1px solid #e3e3e3; border-radius:8px;">
-                    <div class="detail-label">Verfügbarkeit prüfen:</div>
+                    <div class="detail-label">Verfügbarkeit prüfen</div>
                     <div class="detail-value">
                         <div style="display:flex; flex-wrap:wrap; gap:8px; align-items:center;">
                             <input type="date" id="avail-date" style="padding:6px;">
@@ -4170,10 +4399,10 @@ document.addEventListener('DOMContentLoaded', ()=>{
                 </div>
             </div>
         
-            <div class="detail-group full-width" style="margin-top:15px;">
+            <div class="detail-group full-width item-modal-bookings" style="margin-top:15px;">
                 <div class="detail-label">Geplante Ausleihen:</div>
                 <div class="detail-value">
-                    <button id="toggle-bookings" class="calendar-toggle-btn" style="margin-bottom:12px; padding:10px 16px; border-radius:6px; background:#f3f4f6; border:1px solid #d1d5db; font-weight:500; cursor:pointer; display:inline-flex; align-items:center; gap:8px; transition:all 0.2s ease;">
+                    <button id="toggle-bookings" class="calendar-toggle-btn modal-section-toggle" style="margin-bottom:12px;">
                         <span>📅</span>
                         <span id="toggle-bookings-text">Kalender anzeigen</span>
                     </button>
@@ -5371,5 +5600,314 @@ document.addEventListener('DOMContentLoaded', ()=>{
         border-radius: 10px !important;
     }
 }
+
+/* Detailed item modal: compact hierarchy and calm information density. */
+#item-modal .modal-content {
+    width: min(94vw, 880px);
+    max-width: 880px;
+    margin: 4vh auto;
+    padding: 0;
+    max-height: 92vh;
+    overflow-x: hidden;
+    overflow-y: auto;
+    overscroll-behavior: contain;
+    -webkit-overflow-scrolling: touch;
+    border: 1px solid #d8e1eb;
+    border-radius: 16px;
+    background: var(--ui-surface);
+    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.22);
+}
+
+#item-modal .modal-content > *:not(.item-modal-heading):not(.modal-image-container):not(.modal-details):not(.modal-actions) {
+    margin-left: 28px;
+    margin-right: 28px;
+}
+
+#item-modal .item-modal-heading {
+    display: flex;
+    align-items: flex-start;
+    justify-content: space-between;
+    gap: 18px;
+    padding: 26px 30px 22px;
+    border-bottom: 1px solid #e6edf4;
+    background: linear-gradient(180deg, #f8fbfe 0%, var(--ui-surface) 100%);
+}
+
+#item-modal .item-modal-eyebrow {
+    display: block;
+    margin-bottom: 5px;
+    color: #708197;
+    font-size: 0.72rem;
+    font-weight: 800;
+    letter-spacing: 0.12em;
+    text-transform: uppercase;
+}
+
+#item-modal .item-modal-heading h2 {
+    margin: 0;
+    color: #172536;
+    font-size: clamp(1.25rem, 2.5vw, 1.7rem);
+    line-height: 1.2;
+    text-align: left;
+    overflow-wrap: anywhere;
+}
+
+#item-modal .item-modal-status {
+    display: inline-flex;
+    align-items: center;
+    gap: 7px;
+    flex: 0 0 auto;
+    margin-top: 5px;
+    padding: 6px 10px;
+    border: 1px solid;
+    border-radius: 999px;
+    font-size: 0.78rem;
+    font-weight: 800;
+    white-space: nowrap;
+}
+
+#item-modal .item-modal-status.is-available {
+    color: #17633b;
+    border-color: #b9e2ca;
+    background: #effaf3;
+}
+
+#item-modal .item-modal-status.is-borrowed {
+    color: #9b3d32;
+    border-color: #f2c5bf;
+    background: #fff4f2;
+}
+
+#item-modal .item-modal-status-dot {
+    width: 7px;
+    height: 7px;
+    border-radius: 50%;
+    background: currentColor;
+}
+
+#item-modal .modal-image-container {
+    min-height: 180px;
+    margin: 0;
+    padding: 22px 28px;
+    border-radius: 0;
+    background: #f4f7fa;
+}
+
+#item-modal .modal-image {
+    max-height: 320px;
+    border-radius: 10px;
+    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
+}
+
+#item-modal .item-modal-details {
+    display: grid;
+    grid-template-columns: repeat(2, minmax(0, 1fr));
+    gap: 0 22px;
+    margin: 0;
+    padding: 24px 28px 4px;
+}
+
+#item-modal .item-modal-details .detail-group {
+    display: block;
+    min-width: 0;
+    margin: 0;
+    padding: 12px 0;
+    border-bottom: 1px solid #edf1f5;
+}
+
+#item-modal .item-modal-details .detail-label {
+    min-width: 0;
+    margin: 0 0 4px;
+    color: #718096;
+    font-size: 0.72rem;
+    font-weight: 800;
+    letter-spacing: 0.06em;
+    text-transform: uppercase;
+}
+
+#item-modal .item-modal-details .detail-value {
+    min-width: 0;
+    color: #243447;
+    font-size: 0.95rem;
+    line-height: 1.45;
+    overflow-wrap: anywhere;
+}
+
+#item-modal .item-modal-details .detail-group.full-width,
+#item-modal .item-modal-details .item-modal-history,
+#item-modal .item-modal-details .item-modal-bookings {
+    grid-column: 1 / -1;
+}
+
+#item-modal .item-modal-details .detail-group.full-width .detail-value {
+    padding: 12px 14px;
+    border: 1px solid #e1e8ef;
+    border-radius: 9px;
+    background: #f8fafc;
+}
+
+#item-modal .item-modal-details .item-modal-history,
+#item-modal .item-modal-details .item-modal-bookings {
+    margin-top: 12px !important;
+    padding: 16px;
+    border: 1px solid #dfe7ef;
+    border-radius: 12px;
+    background: #fbfcfd;
+}
+
+#item-modal .modal-section-toggle {
+    min-height: 38px;
+    margin: 0 0 12px !important;
+    padding: 8px 12px;
+    border: 1px solid #cdd8e3;
+    border-radius: 8px;
+    background: var(--ui-surface);
+    color: #36516c;
+    font-size: 0.86rem;
+    font-weight: 750;
+    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
+}
+
+#item-modal .modal-section-toggle:hover {
+    border-color: #9db6cc;
+    background: #f1f6fa;
+}
+
+#item-modal .modal-history-panel {
+    margin-top: 4px;
+    padding: 12px;
+    border: 1px solid #e2e9f0;
+    border-radius: 10px;
+    background: #f5f8fb;
+}
+
+#item-modal .damage-history-list {
+    display: grid;
+    gap: 9px;
+}
+
+#item-modal .damage-history-entry {
+    position: relative;
+    display: grid;
+    gap: 7px;
+    padding: 12px 14px 12px 17px;
+    border: 1px solid #dce5ed;
+    border-radius: 9px;
+    background: var(--ui-surface);
+}
+
+#item-modal .damage-history-entry::before {
+    position: absolute;
+    inset: 0 auto 0 0;
+    width: 3px;
+    content: '';
+    border-radius: 9px 0 0 9px;
+    background: #e35d54;
+}
+
+#item-modal .damage-history-entry.is-repair::before {
+    background: #3aa76d;
+}
+
+#item-modal .damage-history-entry-head {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 10px;
+}
+
+#item-modal .damage-history-badge {
+    padding: 3px 8px;
+    border-radius: 999px;
+    font-size: 0.72rem;
+    font-weight: 800;
+}
+
+#item-modal .damage-history-entry time,
+#item-modal .damage-history-meta {
+    color: #738196;
+    font-size: 0.78rem;
+}
+
+#item-modal .damage-history-actor {
+    display: flex;
+    gap: 5px;
+    color: #425466;
+    font-size: 0.84rem;
+}
+
+#item-modal .damage-history-actor strong {
+    color: #718096;
+    font-weight: 700;
+}
+
+#item-modal .damage-history-description {
+    color: #243447;
+    font-size: 0.91rem;
+    line-height: 1.4;
+}
+
+#item-modal .modal-actions {
+    justify-content: flex-end;
+    gap: 9px;
+    margin: 0;
+    padding: 18px 28px 24px;
+    border-top: 1px solid #e6edf4;
+    background: #fbfcfd;
+}
+
+@media (max-width: 640px) {
+    #item-modal .modal-content {
+        width: calc(100vw - 18px);
+        margin: 9px auto;
+        max-height: calc(100dvh - 18px);
+        overflow-y: auto;
+        border-radius: 13px;
+    }
+
+    #item-modal .item-modal-heading {
+        align-items: flex-start;
+        flex-direction: column;
+        gap: 10px;
+        padding: 21px 20px 17px;
+    }
+
+    #item-modal .item-modal-status {
+        margin-top: 0;
+    }
+
+    #item-modal .modal-image-container {
+        padding: 16px 18px;
+    }
+
+    #item-modal .item-modal-details {
+        grid-template-columns: 1fr;
+        gap: 0;
+        padding: 16px 18px 0;
+    }
+
+    #item-modal .item-modal-details .detail-group.full-width,
+    #item-modal .item-modal-details .item-modal-history,
+    #item-modal .item-modal-details .item-modal-bookings {
+        grid-column: auto;
+    }
+
+    #item-modal .item-modal-details .item-modal-history,
+    #item-modal .item-modal-details .item-modal-bookings {
+        padding: 13px;
+    }
+
+    #item-modal .modal-actions {
+        justify-content: stretch;
+        padding: 15px 18px 19px;
+    }
+
+    #item-modal .modal-actions > *,
+    #item-modal .modal-actions form,
+    #item-modal .modal-actions button {
+        flex: 1 1 100%;
+        width: 100%;
+    }
+}
 </style>
 {% endblock %}

Web/templates/manage_filters.html

@@ -1,135 +1,171 @@
-<!--
-   Copyright 2025-2026 AIIrondev
-
-   Licensed under the Inventarsystem EULA (Endbenutzer-Lizenzvertrag).
-   See Legal/LICENSE for the full license text.
-   Unauthorized commercial use, SaaS hosting, or removal of branding is prohibited.
-   For commercial licensing inquiries: https://github.com/AIIrondev
--->
 {% extends "base.html" %}
 
 {% block title %}Filter verwalten{% endblock %}
 
 {% block content %}
-<div class="container">
-    <h1 class="mb-4">Filterwerte verwalten</h1>
-    
-    <div class="row">
-        <!-- Filter 1 -->
-        <div class="col-md-4">
-            <div class="card mb-4">
-                <div class="card-header">
-                    <h2 class="card-title h5 mb-0">{{ filter_names.get('1', 'Jahrgang') }} (Filter 1)</h2>
+<div class="container py-4">
+    <div class="d-flex flex-column flex-md-row justify-content-between align-items-md-center pb-3 mb-4 border-bottom gap-3">
+        <div>
+            <h1 class="h2 fw-bold mb-1">Filterwerte verwalten</h1>
+            <p class="text-muted mb-0">Verwalten und Bearbeiten Sie die Zuordnungswerte für das Inventar.</p>
+        </div>
+        <div>
+            <a href="{{ url_for('home_admin') }}" class="btn btn-outline-secondary d-inline-flex align-items-center">
+                <i class="bi bi-arrow-left me-2"></i> Zurück zur Admin-Übersicht
+            </a>
+        </div>
+    </div>
+
+    <div class="row g-4">
+        <div class="col-lg-6">
+            <div class="card shadow-sm border-0 h-100 rounded-3">
+                <div class="card-header bg-white border-bottom py-3 d-flex justify-content-between align-items-center">
+                    <h2 class="card-title h5 mb-0 fw-semibold text-primary">
+                        <i class="bi bi-funnel me-2"></i>{{ filter_names.get('2', 'Jahrgangsstufe') }}
+                    </h2>
                 </div>
-                <div class="card-body">
+                <div class="card-body p-4">
                     <form method="POST" action="{{ url_for('add_filter_value', filter_num=1) }}" class="mb-4">
+                        <label class="form-label fw-medium text-secondary">Neuen Wert hinzufügen</label>
                         <div class="input-group">
-                            <input type="text" name="value" class="form-control" placeholder="Neuer Wert..." required>
-                            <button type="submit" class="btn btn-primary">Hinzufügen</button>
+                            <input type="text" name="value" class="form-control" placeholder="Wert eingeben..." required>
+                            <button type="submit" class="btn btn-primary d-inline-flex align-items-center">
+                                <i class="bi bi-plus-lg me-1"></i> Hinzufügen
+                            </button>
                         </div>
                     </form>
-                    
-                    <h5 class="mb-3">Vorhandene Werte</h5>
+
+                    <div class="d-flex justify-content-between align-items-center mb-3">
+                        <h3 class="h6 text-uppercase text-muted fw-bold mb-0">Vorhandene Werte</h3>
+                        <span class="badge bg-secondary rounded-pill">{{ filter1_values|length if filter1_values else 0 }}</span>
+                    </div>
+
                     {% if filter1_values %}
-                    <div class="list-group">
+                    <div class="list-group list-group-flush border rounded-3 overflow-hidden">
                         {% for value in filter1_values %}
-                        <div class="list-group-item">
-                            <div class="d-flex justify-content-between align-items-center mb-2">
-                                <span>{{ value }}</span>
-                                <div>
-                                    <button type="button" class="btn btn-sm btn-secondary me-1" onclick="toggleEdit('edit-1-{{ loop.index }}')">Bearbeiten</button>
+                        <div class="list-group-item p-3">
+                            <div class="d-flex justify-content-between align-items-center">
+                                <span class="fw-medium">{{ value }}</span>
+                                <div class="btn-group btn-group-sm">
+                                    <button type="button" class="btn btn-outline-secondary" onclick="toggleEdit('edit-1-{{ loop.index }}')">
+                                        <i class="bi bi-pencil me-1"></i> Bearbeiten
+                                    </button>
                                     <form method="POST" action="{{ url_for('remove_filter_value', filter_num=1, value=value) }}" class="d-inline">
-                                        <button type="submit" class="btn btn-sm btn-danger" 
+                                        <button type="submit" class="btn btn-outline-danger" 
                                                 onclick="return confirm('Sind Sie sicher, dass Sie den Wert \"' + '{{ value }}'.replace(/'/g, '\\\'') + '\" löschen möchten?');">
-                                            Entfernen
+                                            <i class="bi bi-trash me-1"></i> Entfernen
                                         </button>
                                     </form>
                                 </div>
                             </div>
-                            <form id="edit-1-{{ loop.index }}" method="POST" action="{{ url_for('edit_filter_value', filter_num=1, old_value=value) }}" style="display: none;" class="mt-2">
+                            
+                            <form id="edit-1-{{ loop.index }}" method="POST" action="{{ url_for('edit_filter_value', filter_num=1, old_value=value) }}" style="display: none;" class="mt-3 pt-3 border-top">
                                 <div class="input-group input-group-sm">
                                     <input type="text" name="new_value" class="form-control" value="{{ value }}" required>
-                                    <button type="submit" class="btn btn-primary" onclick="return confirm('Tipp: Das Ändern des Namens aktualisiert auch alle Einträge in der Datenbank, die diesen Filter verwenden. Fortfahren?');">Speichern</button>
-                                    <button type="button" class="btn btn-secondary" onclick="toggleEdit('edit-1-{{ loop.index }}')">Abbrechen</button>
+                                    <button type="submit" class="btn btn-success" onclick="return confirm('Tipp: Das Ändern des Namens aktualisiert auch alle Einträge in der Datenbank, die diesen Filter verwenden. Fortfahren?');">
+                                        <i class="bi bi-check-lg me-1"></i> Speichern
+                                    </button>
+                                    <button type="button" class="btn btn-outline-secondary" onclick="toggleEdit('edit-1-{{ loop.index }}')">
+                                        Abbrechen
+                                    </button>
                                 </div>
                             </form>
                         </div>
                         {% endfor %}
                     </div>
                     {% else %}
-                    <div class="alert alert-info">Keine Werte definiert.</div>
+                    <div class="alert alert-light border text-center text-muted mb-0">
+                        <i class="bi bi-info-circle me-1"></i> Keine Werte definiert.
+                    </div>
                     {% endif %}
                 </div>
             </div>
         </div>
-        
-        <!-- Filter 2 -->
-        <div class="col-md-4">
-            <div class="card mb-4">
-                <div class="card-header">
-                    <h2 class="card-title h5 mb-0">{{ filter_names.get('2', 'Fach') }} (Filter 2)</h2>
+
+        <div class="col-lg-6">
+            <div class="card shadow-sm border-0 h-100 rounded-3">
+                <div class="card-header bg-white border-bottom py-3 d-flex justify-content-between align-items-center">
+                    <h2 class="card-title h5 mb-0 fw-semibold text-primary">
+                        <i class="bi bi-funnel me-2"></i>{{ filter_names.get('1', 'Fachgebiet') }}
+                    </h2>
                 </div>
-                <div class="card-body">
+                <div class="card-body p-4">
                     <form method="POST" action="{{ url_for('add_filter_value', filter_num=2) }}" class="mb-4">
+                        <label class="form-label fw-medium text-secondary">Neuen Wert hinzufügen</label>
                         <div class="input-group">
-                            <input type="text" name="value" class="form-control" placeholder="Neuer Wert..." required>
-                            <button type="submit" class="btn btn-primary">Hinzufügen</button>
+                            <input type="text" name="value" class="form-control" placeholder="Wert eingeben..." required>
+                            <button type="submit" class="btn btn-primary d-inline-flex align-items-center">
+                                <i class="bi bi-plus-lg me-1"></i> Hinzufügen
+                            </button>
                         </div>
                     </form>
-                    
-                    <h5 class="mb-3">Vorhandene Werte</h5>
+
+                    <div class="d-flex justify-content-between align-items-center mb-3">
+                        <h3 class="h6 text-uppercase text-muted fw-bold mb-0">Vorhandene Werte</h3>
+                        <span class="badge bg-secondary rounded-pill">{{ filter2_values|length if filter2_values else 0 }}</span>
+                    </div>
+
                     {% if filter2_values %}
-                    <div class="list-group">
+                    <div class="list-group list-group-flush border rounded-3 overflow-hidden">
                         {% for value in filter2_values %}
-                        <div class="list-group-item">
-                            <div class="d-flex justify-content-between align-items-center mb-2">
-                                <span>{{ value }}</span>
-                                <div>
-                                    <button type="button" class="btn btn-sm btn-secondary me-1" onclick="toggleEdit('edit-2-{{ loop.index }}')">Bearbeiten</button>
+                        <div class="list-group-item p-3">
+                            <div class="d-flex justify-content-between align-items-center">
+                                <span class="fw-medium">{{ value }}</span>
+                                <div class="btn-group btn-group-sm">
+                                    <button type="button" class="btn btn-outline-secondary" onclick="toggleEdit('edit-2-{{ loop.index }}')">
+                                        <i class="bi bi-pencil me-1"></i> Bearbeiten
+                                    </button>
                                     <form method="POST" action="{{ url_for('remove_filter_value', filter_num=2, value=value) }}" class="d-inline">
-                                        <button type="submit" class="btn btn-sm btn-danger"
+                                        <button type="submit" class="btn btn-outline-danger"
                                                 onclick="return confirm('Sind Sie sicher, dass Sie den Wert \"' + '{{ value }}'.replace(/'/g, '\\\'') + '\" löschen möchten?');">
-                                            Entfernen
+                                            <i class="bi bi-trash me-1"></i> Entfernen
                                         </button>
                                     </form>
                                 </div>
                             </div>
-                            <form id="edit-2-{{ loop.index }}" method="POST" action="{{ url_for('edit_filter_value', filter_num=2, old_value=value) }}" style="display: none;" class="mt-2">
+
+                            <form id="edit-2-{{ loop.index }}" method="POST" action="{{ url_for('edit_filter_value', filter_num=2, old_value=value) }}" style="display: none;" class="mt-3 pt-3 border-top">
                                 <div class="input-group input-group-sm">
                                     <input type="text" name="new_value" class="form-control" value="{{ value }}" required>
-                                    <button type="submit" class="btn btn-primary" onclick="return confirm('Tipp: Das Ändern des Namens aktualisiert auch alle Einträge in der Datenbank, die diesen Filter verwenden. Fortfahren?');">Speichern</button>
-                                    <button type="button" class="btn btn-secondary" onclick="toggleEdit('edit-2-{{ loop.index }}')">Abbrechen</button>
+                                    <button type="submit" class="btn btn-success" onclick="return confirm('Tipp: Das Ändern des Namens aktualisiert auch alle Einträge in der Datenbank, die diesen Filter verwenden. Fortfahren?');">
+                                        <i class="bi bi-check-lg me-1"></i> Speichern
+                                    </button>
+                                    <button type="button" class="btn btn-outline-secondary" onclick="toggleEdit('edit-2-{{ loop.index }}')">
+                                        Abbrechen
+                                    </button>
                                 </div>
                             </form>
                         </div>
                         {% endfor %}
                     </div>
                     {% else %}
-                    <div class="alert alert-info">Keine Werte definiert.</div>
+                    <div class="alert alert-light border text-center text-muted mb-0">
+                        <i class="bi bi-info-circle me-1"></i> Keine Werte definiert.
+                    </div>
                     {% endif %}
                 </div>
             </div>
         </div>
     </div>
-    
-    <div class="alert alert-warning">
-        <strong>Hinweis:</strong> Beim Entfernen eines Filterwertes wird dieser nicht aus bestehenden Objekten entfernt.
-        Bereits verwendete Werte bleiben in den Objekten erhalten.
-    </div>
-    
-    <div class="mt-4">
-        <a href="{{ url_for('home_admin') }}" class="btn btn-secondary">Zurück zur Admin-Übersicht</a>
+
+    <div class="alert alert-warning border-0 shadow-sm d-flex align-items-center mt-4 rounded-3" role="alert">
+        <i class="bi bi-exclamation-triangle-fill fs-4 me-3 text-warning"></i>
+        <div>
+            <strong>Hinweis:</strong> Beim Entfernen eines Filterwertes wird dieser nicht automatisch aus bestehenden Objekten gelöscht. Bereits zugewiesene Werte bleiben in bestehenden Datensätzen erhalten.
+        </div>
     </div>
 </div>
 
 <script>
 function toggleEdit(id) {
     const el = document.getElementById(id);
-    if (el.style.display === 'none') {
+    if (el.style.display === 'none' || el.style.display === '') {
         el.style.display = 'block';
+        const input = el.querySelector('input[type="text"]');
+        if (input) input.focus();
     } else {
         el.style.display = 'none';
     }
 }
 </script>
-{% endblock %}
+{% endblock %}

Web/templates/manage_locations.html

@@ -71,27 +71,27 @@
     h1 {
         text-align: center;
         margin-bottom: 30px;
-        color: #343a40;
+        color: var(--ui-title);
     }
     
     .card {
         border-radius: 5px;
-        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
+        box-shadow: var(--ui-shadow-sm);
         margin-bottom: 20px;
         background-color: var(--ui-surface);
-        border: 1px solid #e9ecef;
+        border: 1px solid var(--ui-border);
     }
     
     .card-header {
         background-color: var(--ui-surface-soft);
         padding: 15px 20px;
-        border-bottom: 1px solid #e9ecef;
+        border-bottom: 1px solid var(--ui-border);
     }
     
     .card-header h2 {
         margin: 0;
         font-size: 1.25rem;
-        color: #495057;
+        color: var(--ui-title);
     }
     
     .card-body {
@@ -111,8 +111,16 @@
     .form-group input {
         width: 100%;
         padding: 8px 12px;
-        border: 1px solid #ced4da;
+        border: 1px solid var(--ui-border);
         border-radius: 4px;
+        background: var(--ui-bg);
+        color: var(--ui-text);
+    }
+
+    .form-group input:focus {
+        outline: none;
+        border-color: #60a5fa;
+        box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22);
     }
     
     .btn {
@@ -171,17 +179,25 @@
         align-items: center;
         padding: 10px;
         background-color: var(--ui-surface-soft);
+        border: 1px solid var(--ui-border);
         border-radius: 4px;
         border-left: 3px solid #6c757d;
+        transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
+    }
+
+    .location-value-item:hover {
+        background-color: var(--ui-bg-accent);
+        border-color: #60a5fa;
+        transform: translateY(-1px);
     }
     
     .location-value {
         font-weight: 500;
-        color: #495057;
+        color: var(--ui-text);
     }
     
     .no-values-message {
-        color: #6c757d;
+        color: var(--ui-text-muted);
         font-style: italic;
         text-align: center;
         padding: 20px;
@@ -196,5 +212,23 @@
         display: flex;
         justify-content: flex-end;
     }
+
+    @media (max-width: 576px) {
+        .location-values-list {
+            grid-template-columns: 1fr;
+        }
+
+        .location-value-item {
+            gap: 10px;
+        }
+
+        .actions-container {
+            justify-content: stretch;
+        }
+
+        .actions-container .btn {
+            width: 100%;
+        }
+    }
 </style>
 {% endblock %}

Web/templates/my_borrowed_items.html

@@ -142,6 +142,9 @@
                     {% if item.ActiveAppointment %}
                     <span class="appointment-status status-active">Aktiv</span>
                     {% endif %}
+                    {% if item.ReturnPending %}
+                    <span class="return-due-badge">RÜCKGABE ERFORDERLICH</span>
+                    {% endif %}
                 </div>
                 
                 <div class="item-details">
@@ -202,7 +205,9 @@
                     <div class="action-buttons-container">
                         <form method="POST" action="{{ url_for('zurueckgeben', id=item._id) }}">
                             <input type="hidden" name="source_page" value="my_borrowed_items">
-                            <button class="return-button" type="submit">Zurückgeben</button>
+                            <button class="return-button{% if item.ReturnPending %} return-button-due{% endif %}" type="submit">
+                                {% if item.ReturnPending %}Rückgabe bestätigen{% else %}Zurückgeben{% endif %}
+                            </button>
                         </form>
                         <form method="POST" action="{{ url_for('cancel_ausleihung_route', id=item.AppointmentData.id) }}" onsubmit="return confirm('Möchten Sie diese aktive Ausleihung wirklich stornieren?');">
                             <button class="cancel-button" type="submit">Stornieren</button>
@@ -497,6 +502,30 @@ document.addEventListener('DOMContentLoaded', function() {
     .return-button:hover {
         background-color: #0069d9;
     }
+
+    .return-due-badge {
+        background-color: #dc3545;
+        color: #fff;
+        padding: 4px 9px;
+        border-radius: 12px;
+        font-size: 0.75rem;
+        font-weight: 800;
+        margin-left: 10px;
+    }
+
+    .return-button-due {
+        background-color: #dc3545;
+        animation: return-due-pulse 1.8s ease-in-out infinite;
+    }
+
+    .return-button-due:hover {
+        background-color: #b02a37;
+    }
+
+    @keyframes return-due-pulse {
+        0%, 100% { box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.45); }
+        50% { box-shadow: 0 0 0 7px rgba(220, 53, 69, 0); }
+    }
     
     .return-count-group {
         display: flex;

Web/templates/register.html

@@ -88,11 +88,10 @@
                     <div class="password-rules" id="password-rules" aria-live="polite">
                         <p class="password-rules-title">Passwort-Anforderungen:</p>
                         <ul>
-                            <li id="pw-rule-length" class="pw-rule">Mindestens 12 Zeichen</li>
+                            <li id="pw-rule-length" class="pw-rule">Mindestens 5 Zeichen</li>
                             <li id="pw-rule-lower" class="pw-rule">Mindestens ein Kleinbuchstabe</li>
                             <li id="pw-rule-upper" class="pw-rule">Mindestens ein Grossbuchstabe</li>
                             <li id="pw-rule-digit" class="pw-rule">Mindestens eine Zahl</li>
-                            <li id="pw-rule-symbol" class="pw-rule">Mindestens ein Sonderzeichen</li>
                         </ul>
                     </div>
 
@@ -105,7 +104,7 @@
                                    name="password"
                                    placeholder="Geben Sie ein sicheres Passwort ein"
                                    required
-                                   pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9]).{12,}">
+                                   pattern="(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{5,}">
                             <button type="button" id="toggle-pw-btn" class="toggle-pw-btn" onclick="togglePasswordVisibility()" style="background:none; border:none; cursor:pointer; padding-right:10px;">👁️</button>
                         </div>
                     </div>
@@ -201,11 +200,11 @@ function generateUsername() {
 
 // PASSWORT GENERATOR
 function generateSecurePassword() {
-    const length = 16;
-    const charsetLower = "abcdefghijklmnopqrstuvwxyz";
-    const charsetUpper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
-    const charsetNum = "0123456789";
-    const charsetSym = "!@#$%^&*()_+~|}{[]:;?><,.-=";
+    const length = 5;
+    const charsetLower = "abcdefghijklmnpqrstuvwxyz";
+    const charsetUpper = "ABCDEFGHIJKLMNPQRSTUVWXYZ";
+    const charsetNum = "123456789";
+    const charsetSym = "!#$(),.=";
 
     let password = "";
     // Garantiert mindestens 1 Zeichen aus jeder Kategorie
@@ -334,7 +333,7 @@ document.addEventListener('DOMContentLoaded', function () {
 
 body {
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-    background-color: var(--light-bg);
+    background-color: var(--ui-bg);
     margin: 0;
     padding: 0;
     color: var(--text-color);
@@ -719,5 +718,108 @@ code {
         font-size: 1.8rem;
     }
 }
+
+/* Registration-specific dark mode styling. */
+:root[data-theme="dark"] {
+    --light-bg: var(--ui-bg);
+    --text-color: var(--ui-text);
+    --shadow: var(--ui-shadow-md);
+}
+
+:root[data-theme="dark"] .header-section {
+    border-bottom-color: var(--ui-border);
+}
+
+:root[data-theme="dark"] .subtitle,
+:root[data-theme="dark"] .anonymize-hint,
+:root[data-theme="dark"] .form-group label,
+:root[data-theme="dark"] .permission-check,
+:root[data-theme="dark"] .input-icon {
+    color: var(--ui-text-muted) !important;
+}
+
+:root[data-theme="dark"] .content,
+:root[data-theme="dark"] .form-card,
+:root[data-theme="dark"] .permission-panel,
+:root[data-theme="dark"] .password-rules {
+    background: var(--ui-surface) !important;
+    background-color: var(--ui-surface) !important;
+    border-color: var(--ui-border) !important;
+    color: var(--ui-text) !important;
+    box-shadow: var(--ui-shadow-sm);
+}
+
+:root[data-theme="dark"] .form-card h2,
+:root[data-theme="dark"] .permission-panel h4,
+:root[data-theme="dark"] .password-rules-title {
+    color: var(--ui-title) !important;
+}
+
+:root[data-theme="dark"] input[type="text"],
+:root[data-theme="dark"] input[type="password"],
+:root[data-theme="dark"] input[type="file"],
+:root[data-theme="dark"] .form-select {
+    background: var(--ui-bg) !important;
+    background-color: var(--ui-bg) !important;
+    color: var(--ui-text) !important;
+    border-color: var(--ui-border) !important;
+}
+
+:root[data-theme="dark"] input[type="text"]:focus,
+:root[data-theme="dark"] input[type="password"]:focus,
+:root[data-theme="dark"] input[type="file"]:focus,
+:root[data-theme="dark"] .form-select:focus {
+    border-color: #60a5fa !important;
+    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.25) !important;
+}
+
+:root[data-theme="dark"] input[type="file"]::file-selector-button {
+    background: var(--ui-surface-soft);
+    color: var(--ui-text);
+    border-color: var(--ui-border);
+}
+
+:root[data-theme="dark"] input[type="file"]::file-selector-button:hover,
+:root[data-theme="dark"] .btn-secondary:hover {
+    background: var(--ui-bg-accent);
+}
+
+:root[data-theme="dark"] .password-rules {
+    background: var(--ui-surface-soft) !important;
+}
+
+:root[data-theme="dark"] .pw-rule {
+    color: #fca5a5;
+}
+
+:root[data-theme="dark"] .pw-rule.ok {
+    color: #86efac;
+}
+
+:root[data-theme="dark"] .anonymize-hint {
+    background: #082f49 !important;
+    border-color: #38bdf8 !important;
+    color: #bae6fd !important;
+}
+
+:root[data-theme="dark"] .permission-panel {
+    background: var(--ui-surface-soft) !important;
+}
+
+:root[data-theme="dark"] .btn-secondary {
+    background: var(--ui-surface-soft);
+    color: var(--ui-text);
+    border-color: var(--ui-border);
+}
+
+:root[data-theme="dark"] .flash.success {
+    background: #123524;
+    color: #b7f7ce;
+}
+
+:root[data-theme="dark"] .flash.error {
+    background: #451a1a;
+    color: #fecaca;
+}
 </style>
 {% endblock %}

Web/templates/student_cards_admin.html

@@ -1,11 +1,3 @@
-<!--
-   Copyright 2025-2026 AIIrondev
-
-   Licensed under the Inventarsystem EULA (Endbenutzer-Lizenzvertrag).
-   See Legal/LICENSE for the full license text.
-   Unauthorized commercial use, SaaS hosting, or removal of branding is prohibited.
-   For commercial licensing inquiries: https://github.com/AIIrondev
--->
 {% extends "base.html" %}
 
 {% block title %}Bibliotheksausweise - Inventarsystem{% endblock %}
@@ -21,7 +13,6 @@
         gap: 15px;
     }
 
-    /* Neu strukturiertes Layout für Formular & Import */
     .dashboard-grid {
         display: grid;
         grid-template-columns: 2fr 1fr;
@@ -145,6 +136,38 @@
         background: #5a6268;
     }
 
+    /* Filter Controls Styling */
+    .filter-bar {
+        display: flex;
+        gap: 12px;
+        margin-bottom: 15px;
+        flex-wrap: wrap;
+        align-items: center;
+        background: var(--ui-bg);
+        padding: 12px;
+        border-radius: 8px;
+        border: 1px solid #ddd;
+    }
+
+    .filter-bar input,
+    .filter-bar select {
+        padding: 8px 12px;
+        border: 1px solid #ccc;
+        border-radius: 4px;
+        font-size: 14px;
+    }
+
+    .filter-bar input {
+        flex: 1;
+        min-width: 200px;
+    }
+
+    .filter-counter {
+        font-size: 13px;
+        color: #666;
+        margin-left: auto;
+    }
+
     .cards-table {
         width: 100%;
         border-collapse: collapse;
@@ -254,6 +277,104 @@
         margin: 10px 0;
     }
 
+    :root[data-theme="dark"] .student-card-form,
+    :root[data-theme="dark"] .import-card,
+    :root[data-theme="dark"] .filter-bar {
+        background: var(--ui-surface) !important;
+        color: var(--ui-text) !important;
+        border-color: var(--ui-border) !important;
+        box-shadow: var(--ui-shadow-sm);
+    }
+
+    :root[data-theme="dark"] .import-card {
+        background: var(--ui-surface-soft) !important;
+    }
+
+    :root[data-theme="dark"] .import-card p,
+    :root[data-theme="dark"] .rollover-hint,
+    :root[data-theme="dark"] .empty-state,
+    :root[data-theme="dark"] .empty-state p,
+    :root[data-theme="dark"] .filter-counter {
+        color: var(--ui-text-muted) !important;
+    }
+
+    :root[data-theme="dark"] .rollover-box {
+        background: #422006 !important;
+        border-color: #f59e0b !important;
+    }
+
+    :root[data-theme="dark"] .rollover-label,
+    :root[data-theme="dark"] .rollover-hint {
+        color: #fde68a !important;
+    }
+
+    :root[data-theme="dark"] .form-group input,
+    :root[data-theme="dark"] .form-group select,
+    :root[data-theme="dark"] .form-group textarea,
+    :root[data-theme="dark"] .filter-bar input,
+    :root[data-theme="dark"] .filter-bar select,
+    :root[data-theme="dark"] .export-buttons form,
+    :root[data-theme="dark"] .export-buttons select {
+        background: var(--ui-bg) !important;
+        background-color: var(--ui-bg) !important;
+        color: var(--ui-text) !important;
+        border-color: var(--ui-border) !important;
+    }
+
+    :root[data-theme="dark"] .form-group input:focus,
+    :root[data-theme="dark"] .form-group select:focus,
+    :root[data-theme="dark"] .form-group textarea:focus,
+    :root[data-theme="dark"] .filter-bar input:focus,
+    :root[data-theme="dark"] .filter-bar select:focus,
+    :root[data-theme="dark"] .export-buttons select:focus {
+        border-color: #60a5fa !important;
+        box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.22) !important;
+    }
+
+    :root[data-theme="dark"] .cards-table {
+        background: var(--ui-surface) !important;
+        color: var(--ui-text) !important;
+        border-color: var(--ui-border) !important;
+        box-shadow: var(--ui-shadow-sm);
+    }
+
+    :root[data-theme="dark"] .cards-table thead {
+        background: #1d4ed8 !important;
+        color: #ffffff !important;
+    }
+
+    :root[data-theme="dark"] .cards-table th,
+    :root[data-theme="dark"] .cards-table td {
+        background: var(--ui-surface) !important;
+        color: var(--ui-text) !important;
+        border-color: var(--ui-border) !important;
+    }
+
+    :root[data-theme="dark"] .cards-table tbody tr:hover td {
+        background: var(--ui-bg-accent) !important;
+    }
+
+    @media (max-width: 768px) {
+        .export-buttons {
+            width: 100%;
+        }
+
+        .export-buttons form,
+        .export-buttons > a {
+            flex: 1 1 100%;
+        }
+
+        .filter-bar {
+            flex-direction: column;
+            align-items: stretch;
+        }
+
+        .filter-counter {
+            margin-left: 0;
+            text-align: right;
+        }
+    }
+
     @media (max-width: 992px) {
         .dashboard-grid {
             grid-template-columns: 1fr;
@@ -391,7 +512,9 @@
             <div>
                 <h3 style="margin:0 0 8px 0;">Excel-Import</h3>
                 <p style="margin:0 0 12px 0; color:#555; font-size:13px; line-height:1.4;">
-                    Laden Sie eine <strong>.xlsx</strong>- oder <strong>.csv</strong>-Datei hoch (z. B. aus <strong>ASV</strong>). Erkannt werden Name, Nachname, Klasse, Ausweis-ID, lokales Differenzierungsmerkmal, Notizen & Ausleihdauer.
+                    Laden Sie eine <strong>.xlsx</strong>- oder <strong>.csv</strong>-Datei hoch (z. B. aus <strong>ASV</strong>). Erkannt werden Rufame, Nachname, Klasse*, Ausweis-ID*, lokales Differenzierungsmerkmal*, Notizen* & Ausleihdauer*.
+                    Hinweis: Die Daten werden Validiert und müssen dann noch einmal aus sicherheits gründen hochgeladen werden!
+                    Im folgenden ist eine export vorlage für ihre ASV-Software hinterlegt: <a href="{{ url_for('get_asv_export') }}" target="_blank" style="color:#007bff; text-decoration:underline;">ASV Export Vorlage</a>
                 </p>
             </div>
 
@@ -421,7 +544,20 @@
     <div>
         <h2 style="margin-bottom: 15px;">Registrierte Ausweise</h2>
         {% if student_cards %}
-            <table class="cards-table">
+            <!-- Filter Options -->
+            <div class="filter-bar">
+                <input type="text" id="cardSearchInput" placeholder="🔍 Name oder Ausweis-ID suchen...">
+                <select id="classFilterSelect">
+                    <option value="">Alle Klassen</option>
+                    {% for cls in available_classes %}
+                        <option value="{{ cls }}">{{ cls }}</option>
+                    {% endfor %}
+                </select>
+                <button type="button" id="clearFilterBtn" class="btn-cancel" style="padding: 8px 12px; font-size: 13px;">Zurücksetzen</button>
+                <span class="filter-counter" id="filterCounter">Angezeigt: {{ student_cards|length }} / {{ student_cards|length }}</span>
+            </div>
+
+            <table class="cards-table" id="cardsTable">
                 <thead>
                     <tr>
                         <th>Ausweis-ID</th>
@@ -434,7 +570,7 @@
                 </thead>
                 <tbody>
                     {% for card in student_cards %}
-                        <tr>
+                        <tr class="card-row" data-id="{{ card.AusweisId|lower }}" data-name="{{ card.SchülerName|lower }}" data-class="{{ card.Klasse or '' }}">
                             <td><strong>{{ card.AusweisId }}</strong></td>
                             <td>{{ card.SchülerName }}</td>
                             <td>{{ card.Klasse or '—' }}</td>
@@ -447,6 +583,12 @@
                                         <button type="submit" class="btn-edit">Bearbeiten</button>
                                     </form>
                                     <a href="{{ url_for('student_card_single_barcode_download', card_id=card._id) }}" class="btn-export">📥 PDF</a>
+                                    {% if email_service_enabled %}
+                                    <form method="POST" action="{{ url_for('student_card_single_barcode_download', card_id=card._id) }}" style="display:flex; gap:4px; align-items:center;">
+                                        <input type="email" name="recipient_email" required placeholder="E-Mail" aria-label="E-Mail für {{ card.SchülerName }}" style="width:150px; padding:5px;">
+                                        <button type="submit" class="btn-export">PDF senden</button>
+                                    </form>
+                                    {% endif %}
                                     <form method="POST" style="display: inline;" onsubmit="return confirm('Wirklich löschen?');">
                                         <input type="hidden" name="action" value="delete">
                                         <input type="hidden" name="card_id" value="{{ card._id }}">
@@ -458,6 +600,10 @@
                     {% endfor %}
                 </tbody>
             </table>
+            
+            <div id="noResultsMsg" class="empty-state" style="display: none;">
+                <p>Keine passende Ausweise für diesen Filter gefunden.</p>
+            </div>
         {% else %}
             <div class="empty-state">
                 <p>Keine Bibliotheksausweise registriert.</p>
@@ -469,7 +615,56 @@
 
 <script src="https://cdn.jsdelivr.net/npm/qrcode.js"></script>
 <script>
-    // All PDF exports now go through backend routes
+    document.addEventListener('DOMContentLoaded', function() {
+        const searchInput = document.getElementById('cardSearchInput');
+        const classSelect = document.getElementById('classFilterSelect');
+        const clearBtn = document.getElementById('clearFilterBtn');
+        const filterCounter = document.getElementById('filterCounter');
+        const rows = document.querySelectorAll('.card-row');
+        const noResultsMsg = document.getElementById('noResultsMsg');
+        const totalRows = rows.length;
+
+        function filterCards() {
+            const query = searchInput ? searchInput.value.toLowerCase().trim() : '';
+            const selectedClass = classSelect ? classSelect.value : '';
+            let visibleCount = 0;
+
+            rows.forEach(row => {
+                const id = row.getAttribute('data-id') || '';
+                const name = row.getAttribute('data-name') || '';
+                const cardClass = row.getAttribute('data-class') || '';
+
+                const matchesQuery = !query || id.includes(query) || name.includes(query);
+                const matchesClass = !selectedClass || cardClass === selectedClass;
+
+                if (matchesQuery && matchesClass) {
+                    row.style.display = '';
+                    visibleCount++;
+                } else {
+                    row.style.display = 'none';
+                }
+            });
+
+            if (filterCounter) {
+                filterCounter.textContent = `Angezeigt: ${visibleCount} / ${totalRows}`;
+            }
+
+            if (noResultsMsg) {
+                noResultsMsg.style.display = (visibleCount === 0 && totalRows > 0) ? 'block' : 'none';
+            }
+        }
+
+        if (searchInput) searchInput.addEventListener('input', filterCards);
+        if (classSelect) classSelect.addEventListener('change', filterCards);
+
+        if (clearBtn) {
+            clearBtn.addEventListener('click', function() {
+                if (searchInput) searchInput.value = '';
+                if (classSelect) classSelect.value = '';
+                filterCards();
+            });
+        }
+    });
 </script>
 
 {% endblock %}

Web/templates/termin_configure.html

@@ -6,7 +6,7 @@
 <div class="container py-4">
     <div class="row justify-content-center">
         <div class="col-12 col-lg-10 col-xl-8">
-            <div class="card border-0 shadow-lg rounded-4 overflow-hidden">
+            <div class="card termin-configure-card border-0 shadow-lg rounded-4 overflow-hidden">
                 <div class="card-header text-white" style="background: linear-gradient(135deg, #0f4c5c, #16697a);">
                     <h1 class="h3 mb-1 fw-bold">Terminplan konfigurieren</h1>
                     <p class="mb-0 opacity-75">Erstellen Sie einen neuen Plan und verschicken Sie anschließend den Buchungslink.</p>
@@ -139,6 +139,79 @@
         </div>
     </div>
 </div>
+<style>
+    .termin-configure-card .card-body {
+        color: var(--ui-text);
+    }
+
+    .termin-configure-card .form-text {
+        color: var(--ui-text-muted) !important;
+    }
+
+    .termin-configure-card .form-control,
+    .termin-configure-card .form-select {
+        color: var(--ui-text);
+        background-color: var(--ui-surface);
+        border-color: var(--ui-border);
+    }
+
+    .termin-configure-card .form-control:focus,
+    .termin-configure-card .form-select:focus {
+        border-color: #60a5fa;
+        box-shadow: 0 0 0 0.25rem rgba(96, 165, 250, 0.25);
+    }
+
+    .termin-configure-card #slots_amounts_display {
+        background-color: #dbeafe !important;
+        color: #1d4ed8 !important;
+        border-color: #93c5fd !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card .card-header {
+        background: linear-gradient(135deg, #0b3440, #155e75) !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card .card-body {
+        background: var(--ui-surface) !important;
+        color: var(--ui-text) !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card .bg-light-subtle,
+    :root[data-theme="dark"] .termin-configure-card .bg-white,
+    :root[data-theme="dark"] .termin-configure-card [data-day-row] {
+        background: var(--ui-surface-soft) !important;
+        color: var(--ui-text) !important;
+        border-color: var(--ui-border) !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card #slots_amounts_display {
+        background: #172554 !important;
+        color: #bfdbfe !important;
+        border-color: #3b82f6 !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card .text-primary {
+        color: #93c5fd !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card .text-danger {
+        color: #fca5a5 !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card .border-danger-subtle {
+        border-color: #f87171 !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card .alert-success {
+        background: #123524 !important;
+        border-color: #2f9e62 !important;
+        color: #b7f7ce !important;
+    }
+
+    :root[data-theme="dark"] .termin-configure-card .alert-success a {
+        color: #bfdbfe !important;
+    }
+</style>
 <script>
 (function () {
     const startDateInput = document.getElementById('start_date');

Web/templates/terminplaner.html

@@ -42,6 +42,12 @@
                     <a href="{{ url_for('terminplaner.export_pdf_brief', plan_id=plan_id) }}" class="btn btn-outline-success btn-sm">
                         📄 Brief als PDF herunterladen
                     </a>
+                    {% if mail_service_enabled %}
+                    <form method="post" action="{{ url_for('terminplaner.export_pdf_brief', plan_id=plan_id) }}" class="d-flex flex-wrap gap-2 mt-2">
+                        <input type="email" name="recipient_email" required placeholder="Empfänger-E-Mail" aria-label="Empfänger-E-Mail für den Einladungsbrief" class="form-control" style="max-width:280px;">
+                        <button type="submit" class="btn btn-outline-primary btn-sm">PDF per E-Mail senden</button>
+                    </form>
+                    {% endif %}
                 </div>
 
                 {% if calendar_link %}

Web/templates/upload_admin.html

@@ -647,14 +647,98 @@
         cursor: pointer;
         margin-left: 10px;
     }
+
+    /* Upload-specific dark mode surfaces and readable helper text. */
+    :root[data-theme="dark"] .upload-container {
+        background: var(--ui-surface) !important;
+        border: 1px solid var(--ui-border);
+        box-shadow: var(--ui-shadow-md);
+    }
+
+    :root[data-theme="dark"] .upload-import-panel,
+    :root[data-theme="dark"] #range_generator_group,
+    :root[data-theme="dark"] .filter-inputs,
+    :root[data-theme="dark"] .book-info-container,
+    :root[data-theme="dark"] .book-cover-preview,
+    :root[data-theme="dark"] .video-preview {
+        background: var(--ui-surface-soft) !important;
+        background-color: var(--ui-surface-soft) !important;
+        border-color: var(--ui-border) !important;
+        color: var(--ui-text) !important;
+    }
+
+    :root[data-theme="dark"] .upload-import-panel p,
+    :root[data-theme="dark"] .upload-import-panel small,
+    :root[data-theme="dark"] #isbn-scan-status,
+    :root[data-theme="dark"] #code4-scan-status,
+    :root[data-theme="dark"] .image-loading,
+    :root[data-theme="dark"] .book-info p,
+    :root[data-theme="dark"] .book-cover-caption {
+        color: var(--ui-text-muted) !important;
+    }
+
+    :root[data-theme="dark"] .upload-import-panel h3,
+    :root[data-theme="dark"] .book-info h4,
+    :root[data-theme="dark"] .book-description h5,
+    :root[data-theme="dark"] #range_generator_group label {
+        color: var(--ui-title) !important;
+    }
+
+    :root[data-theme="dark"] .upload-form input,
+    :root[data-theme="dark"] .upload-form select,
+    :root[data-theme="dark"] .upload-form textarea,
+    :root[data-theme="dark"] .filter-dropdown-select,
+    :root[data-theme="dark"] .upload-import-panel input[type="file"] {
+        background: var(--ui-bg) !important;
+        background-color: var(--ui-bg) !important;
+        color: var(--ui-text) !important;
+        border-color: var(--ui-border) !important;
+    }
+
+    :root[data-theme="dark"] .upload-form input:focus,
+    :root[data-theme="dark"] .upload-form select:focus,
+    :root[data-theme="dark"] .upload-form textarea:focus,
+    :root[data-theme="dark"] .filter-dropdown-select:focus {
+        border-color: #60a5fa !important;
+        box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.25) !important;
+    }
+
+    :root[data-theme="dark"] .book-info,
+    :root[data-theme="dark"] .book-description p,
+    :root[data-theme="dark"] .video-placeholder {
+        background: var(--ui-bg) !important;
+        background-color: var(--ui-bg) !important;
+        border-color: var(--ui-border) !important;
+    }
+
+    :root[data-theme="dark"] .success-message {
+        background: #123524 !important;
+        border-color: #2f9e62 !important;
+        color: #b7f7ce !important;
+    }
+
+    :root[data-theme="dark"] .error-message,
+    :root[data-theme="dark"] .error,
+    :root[data-theme="dark"] .error-message-container {
+        background: #451a1a !important;
+        border-color: #f87171 !important;
+        color: #fecaca !important;
+    }
+
+    :root[data-theme="dark"] .warning-message,
+    :root[data-theme="dark"] .warning {
+        background: #422006 !important;
+        border-color: #f59e0b !important;
+        color: #fde68a !important;
+    }
 </style>
 
 <div class="upload-container">
 
     {% if show_library_features %}
-    <div style="border:1px solid #dbe4ee; border-radius:8px; padding:14px; margin-bottom:16px; background:#f8fbff;">
+    <div class="upload-import-panel" style="border:1px solid #dbe4ee; border-radius:8px; padding:14px; margin-bottom:16px; background:#f8fbff;">
         <h3 style="margin:0 0 8px 0;">Excel-Import Bibliothek (Mehrere Bücher)</h3>
-        <p style="margin:0 0 10px 0; color:#555;">Laden Sie eine <strong>.xlsx</strong>- oder <strong>.csv</strong>-Datei hoch. Spalten werden automatisch erkannt (z.B. Name, Ort, Beschreibung, ISBN, Code, Anzahl). Für den Bibliotheksimport ist eine gültige ISBN je Zeile erforderlich.</p>
+        <p style="margin:0 0 10px 0; color:#555;">Laden Sie eine <strong>.xlsx</strong>- oder <strong>.csv</strong>-Datei hoch. Spalten werden automatisch erkannt (z.B. Name, Ort, Beschreibung, ISBN, Code, Anzahl). Für den Bibliotheksimport ist eine gültige ISBN je Zeile erforderlich.  Hinweis: Die Daten werden Validiert und müssen dann noch einmal aus sicherheits gründen hochgeladen werden!</p>
         <form method="POST" action="{{ url_for('upload_library_excel') }}" enctype="multipart/form-data" style="display:flex; gap:10px; flex-wrap:wrap; align-items:center;">
             <input type="file" name="library_excel" accept=".xlsx,.csv" required>
             <button type="button" class="btn btn-link" onclick="downloadSampleCsv('library')">Beispiel-CSV herunterladen</button>
@@ -664,13 +748,12 @@
         </form>
     </div>
     {% else %}
-    <div style="border:1px solid #dbe4ee; border-radius:8px; padding:14px; margin-bottom:16px; background:#f8fbff;">
+    <div class="upload-import-panel" style="border:1px solid #dbe4ee; border-radius:8px; padding:14px; margin-bottom:16px; background:#f8fbff;">
         <h3 style="margin:0 0 8px 0;">Excel-Import Inventar (Mehrere Artikel)</h3>
-        <p style="margin:0 0 10px 0; color:#555;">Laden Sie eine <strong>.xlsx</strong>- oder <strong>.csv</strong>-Datei hoch. Spalten werden automatisch erkannt (z.B. Name, Ort, Beschreibung, Filter1/2/3, Kosten, Jahr, Code, Anzahl).</p>
+        <p style="margin:0 0 10px 0; color:#555;">Laden Sie eine <strong>.xlsx</strong>- oder <strong>.csv</strong>-Datei hoch. Spalten werden automatisch erkannt (z.B. Name, Ort, Beschreibung, Filter1/2/3, Kosten, Jahr, Code, Anzahl).  Hinweis: Die Daten werden Validiert und müssen dann noch einmal aus sicherheits gründen hochgeladen werden!</p>
         <form method="POST" action="{{ url_for('upload_inventory_excel') }}" enctype="multipart/form-data" style="display:flex; gap:10px; flex-wrap:wrap; align-items:center;">
             <input type="file" name="inventory_excel" accept=".xlsx,.csv" required>
             <button type="button" class="btn btn-link" onclick="downloadSampleCsv('inventory')">Beispiel-CSV herunterladen</button>
-            <button type="button" class="btn btn-outline-secondary" title="Format-Hilfe" onclick="showCsvHelp('inventory')">?</button>
             <button type="submit" class="btn btn-secondary" name="excel_action" value="validate">Nur validieren</button>
             <button type="submit" class="btn btn-primary" name="excel_action" value="import">Inventar importieren</button>
         </form>
@@ -781,39 +864,7 @@
             {% else %}
             <!-- Normal Item Mode: Standard Filters -->
             <div class="filter-inputs">
-                <h3>Unterrichtsfach:</h3>
-                <div class="multi-filter">
-                    <div class="form-group">
-                        <label for="filter1-1">Wert 1:</label>
-                        <select id="filter1-1" name="filter" class="filter-dropdown-select" required>
-                            <option value="">-- Bitte auswählen --</option>
-                            <!-- Options will be loaded by JavaScript -->
-                        </select>
-                    </div>
-                    <div class="form-group">
-                        <label for="filter1-2">Wert 2:</label>
-                        <select id="filter1-2" name="filter" class="filter-dropdown-select">
-                            <option value="">-- Optional --</option>
-                            <!-- Options will be loaded by JavaScript -->
-                        </select>
-                    </div>
-                    <div class="form-group">
-                        <label for="filter1-3">Wert 3:</label>
-                        <select id="filter1-3" name="filter" class="filter-dropdown-select">
-                            <option value="">-- Optional --</option>
-                            <!-- Options will be loaded by JavaScript -->
-                        </select>
-                    </div>
-                    <div class="form-group">
-                        <label for="filter1-4">Wert 4:</label>
-                        <select id="filter1-4" name="filter" class="filter-dropdown-select">
-                            <option value="">-- Optional --</option>
-                            <!-- Options will be loaded by JavaScript -->
-                        </select>
-                    </div>
-                </div>
-                
-                <h3>Jahrgangsstufe:</h3>
+                <h3>{{ filter_names.get('1', 'Jahrgangsstufe') }}</h3>
                 <div class="multi-filter">
                     <div class="form-group">
                         <label for="filter2-1">Wert 1:</label>
@@ -845,7 +896,39 @@
                     </div>
                 </div>
                 
-                <h3>Schlagwort:</h3>
+                <h3>{{ filter_names.get('2', 'Fachgebiet') }}</h3>
+                <div class="multi-filter">
+                    <div class="form-group">
+                        <label for="filter1-1">Wert 1:</label>
+                        <select id="filter1-1" name="filter" class="filter-dropdown-select" required>
+                            <option value="">-- Bitte auswählen --</option>
+                            <!-- Options will be loaded by JavaScript -->
+                        </select>
+                    </div>
+                    <div class="form-group">
+                        <label for="filter1-2">Wert 2:</label>
+                        <select id="filter1-2" name="filter" class="filter-dropdown-select">
+                            <option value="">-- Optional --</option>
+                            <!-- Options will be loaded by JavaScript -->
+                        </select>
+                    </div>
+                    <div class="form-group">
+                        <label for="filter1-3">Wert 3:</label>
+                        <select id="filter1-3" name="filter" class="filter-dropdown-select">
+                            <option value="">-- Optional --</option>
+                            <!-- Options will be loaded by JavaScript -->
+                        </select>
+                    </div>
+                    <div class="form-group">
+                        <label for="filter1-4">Wert 4:</label>
+                        <select id="filter1-4" name="filter" class="filter-dropdown-select">
+                            <option value="">-- Optional --</option>
+                            <!-- Options will be loaded by JavaScript -->
+                        </select>
+                    </div>
+                </div>
+                
+                <h3>{{ filter_names.get('3', 'Schlagwort') }}</h3>
                 <div class="multi-filter">
                     <div class="form-group">
                         <label for="filter3-1">Wert 1:</label>

Web/templates/user_del.html

@@ -53,8 +53,11 @@
                         <option value="desc">Absteigend</option>
                     </select>
                 </div>
-                <div class="col-md-2">
-                    <button class="btn btn-secondary w-100" onclick="resetFilters()">Filter zurücksetzen</button>
+                <div class="col-md-3">
+                    <div class="d-flex gap-2">
+                        <button class="btn btn-secondary flex-grow-1" onclick="resetFilters()">Zurücksetzen</button>
+                        <button class="btn btn-success flex-grow-1" onclick="exportFilteredUsers()">Exportieren</button>
+                    </div>
                 </div>
             </div>
             <div class="mt-2 text-muted small" id="filter-count"></div>
@@ -82,19 +85,20 @@
                         <td>{{ permission_presets.get(user.permission_preset, {}).get('label', user.permission_preset) }}</td>
                         <td class="actions">
                             <form method="POST" action="{{ url_for('delete_user') }}" class="d-inline">
+                                <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                                 <input type="hidden" name="username" value="{{ user.username }}">
                                 <button type="submit" class="btn btn-danger btn-sm" onclick="return confirm('Sind Sie sicher, dass Sie den Benutzer {{ user.username }} löschen möchten?')">
                                     Löschen
                                 </button>
                             </form>
-                            <button type="button" class="btn btn-primary btn-sm" 
+                            <button type="button" class="btn btn-primary btn-sm"
                                     data-username="{{ user.username }}"
                                     data-firstname="{{ user.name if user.name else '' }}"
                                     data-lastname="{{ user.last_name if user.last_name else '' }}"
                                     onclick="openEditUserModal(this)">
                                 Bearbeiten
                             </button>
-                            <button type="button" class="btn btn-warning btn-sm" 
+                            <button type="button" class="btn btn-warning btn-sm"
                                     onclick="openResetPasswordModal('{{ user.username }}')">
                                 Passwort zurücksetzen
                             </button>
@@ -124,6 +128,7 @@
                 <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
             </div>
             <form method="POST" action="{{ url_for('admin_update_user_permissions') }}">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                 <div class="modal-body permissions-modal-body">
                     <input type="hidden" id="perm-username" name="username">
                     <div class="mb-3">
@@ -180,6 +185,7 @@
                 <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
             </div>
             <form method="POST" action="{{ url_for('admin_update_user_name') }}">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                 <div class="modal-body">
                     <input type="hidden" id="edit-username" name="username">
                     <div class="mb-3">
@@ -213,6 +219,7 @@
                 <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
             </div>
             <form method="POST" action="{{ url_for('admin_reset_user_password') }}">
+                <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
                 <div class="modal-body">
                     <input type="hidden" id="reset-username" name="username">
                     <div class="mb-3">
@@ -221,7 +228,12 @@
                     </div>
                     <div class="mb-3">
                         <label for="new-password" class="form-label">Neues Passwort:</label>
-                        <input type="password" class="form-control" id="new-password" name="new_password" required>
+                        <div class="input-group">
+                            <input type="password" class="form-control" id="new-password" name="new_password" required>
+                            <button class="btn btn-outline-secondary" type="button" id="togglePasswordBtn" onclick="togglePasswordVisibility()">
+                                Anzeigen
+                            </button>
+                        </div>
                         <div class="password-requirements small text-muted mt-1">
                             <p>Das Passwort muss mindestens 6 Zeichen lang sein.</p>
                         </div>
@@ -313,6 +325,54 @@
         applyFilters();
     }
 
+    function exportFilteredUsers() {
+        var table = document.getElementById('user-table');
+        var tbody = table.querySelector('tbody');
+        var rows = Array.from(tbody.querySelectorAll('tr'));
+
+        var visibleUsernames = [];
+
+        // Sammle alle Benutzernamen, die durch den Filter aktuell NICHT versteckt sind
+        rows.forEach(function(row) {
+            if (row.style.display !== 'none') {
+                var cells = row.querySelectorAll('td');
+                if (cells.length > 0) {
+                    visibleUsernames.push(cells[0].textContent.trim());
+                }
+            }
+        });
+
+        if (visibleUsernames.length === 0) {
+            alert('Keine Benutzer zum Exportieren vorhanden.');
+            return;
+        }
+
+        // Dynamisches Formular erstellen
+        var form = document.createElement('form');
+        form.method = 'POST';
+        form.action = "{{ url_for('export_users_csv') }}";
+
+        // 1. CSRF-Token als Wert (ohne Klammern) übergeben
+        var csrfInput = document.createElement('input');
+        csrfInput.type = 'hidden';
+        csrfInput.name = 'csrf_token';
+        csrfInput.value = "{{ csrf_token }}";
+        form.appendChild(csrfInput);
+
+        // 2. Gefilterte Benutzernamen hinzufügen
+        var input = document.createElement('input');
+        input.type = 'hidden';
+        input.name = 'usernames';
+        input.value = JSON.stringify(visibleUsernames);
+        form.appendChild(input);
+
+        document.body.appendChild(form);
+        form.submit();
+
+        // Aufräumen
+        document.body.removeChild(form);
+    }
+
     document.addEventListener('DOMContentLoaded', function() {
         applyFilters();
         document.getElementById('filter-search').addEventListener('input', applyFilters);
@@ -332,25 +392,46 @@
         var username = button.getAttribute('data-username');
         var name = button.getAttribute('data-firstname');
         var lastName = button.getAttribute('data-lastname');
-        
+
         document.getElementById('edit-username').value = username;
         document.getElementById('edit-username-display').value = username;
         document.getElementById('edit-name').value = name;
         document.getElementById('edit-last-name').value = lastName;
-        
+
         var modal = new bootstrap.Modal(document.getElementById('editUserModal'));
         modal.show();
     }
 
+    function togglePasswordVisibility() {
+        var passwordInput = document.getElementById('new-password');
+        var toggleBtn = document.getElementById('togglePasswordBtn');
+        
+        if (passwordInput.type === 'password') {
+            passwordInput.type = 'text';
+            toggleBtn.textContent = 'Verbergen';
+        } else {
+            passwordInput.type = 'password';
+            toggleBtn.textContent = 'Anzeigen';
+        }
+    }
+    
     function openResetPasswordModal(username) {
         document.getElementById('reset-username').value = username;
         document.getElementById('username-display').value = username;
-        
-        // Open modal using Bootstrap
+    
+        var passwordInput = document.getElementById('new-password');
+        var toggleBtn = document.getElementById('togglePasswordBtn');
+    
+        // Reset password field state on modal open
+        passwordInput.value = '';
+        passwordInput.type = 'password';
+        if (toggleBtn) {
+            toggleBtn.textContent = 'Anzeigen';
+        }
+    
         var modal = new bootstrap.Modal(document.getElementById('resetPasswordModal'));
         modal.show();
     }
-
     function openPermissionsModal(button) {
         var username = button.getAttribute('data-username') || '';
         var preset = button.getAttribute('data-preset') || 'standard_user';

manage-tenant.sh

@@ -430,6 +430,7 @@ PY
 initialize_tenant_database() {
     local tenant_id="$1"
     local mode="$2"
+    local admin_password="${3:-admin123}"
 
     APP_CONTAINER=$(docker ps -qf "name=app" | head -n 1)
     if [ -z "$APP_CONTAINER" ]; then
@@ -438,7 +439,8 @@ initialize_tenant_database() {
         return 0
     fi
 
-    docker exec -i "$APP_CONTAINER" python3 - "$tenant_id" "$mode" <<'PY'
+    # Fix: We inject the password securely via a temporary environment variable (-e ADMIN_PASS)
+    docker exec -i -e ADMIN_PASS="$admin_password" "$APP_CONTAINER" python3 - "$tenant_id" "$mode" <<'PY'
 import sys, os, re, datetime, hashlib
 sys.path.insert(0, "/app")
 sys.path.insert(0, "/app/Web")
@@ -449,6 +451,13 @@ import Web.modules.database.user as us
 
 tenant_id = sys.argv[1].lower()
 mode = sys.argv[2]
+
+# Fix: Read the password directly from the environment variable instead of sys.argv
+admin_password = os.environ.get("ADMIN_PASS", "admin123")
+# Failsafe in case of empty string
+if not admin_password.strip():
+    admin_password = "admin123"
+
 sanitized = "".join(c for c in tenant_id if c.isalnum() or c == "_")
 db_name = f"inventar_{sanitized}" if sanitized else settings.MONGODB_DB
 
@@ -458,7 +467,7 @@ users = db["users"]
 permission_defaults = us.build_default_permission_payload("full_access")
 admin_doc = {
     "Username": "admin",
-    "Password": us.hashing("admin123"),
+    "Password": us.hashing(admin_password),
     "Admin": True,
     "active_ausleihung": None,
     "name": dp.encrypt_text("admin"),
@@ -488,7 +497,7 @@ if mode == "trial":
 
 client.close()
 
-print(f"Tenant {sys.argv[1]} database initialized. Default admin: admin / admin123")
+print(f"Tenant {sys.argv[1]} database initialized. Default admin: admin / {admin_password}")
 PY
 }
 
@@ -812,12 +821,26 @@ case "$COMMAND" in
             exit 1
         fi
 
-        PORT_ARG="${3:-}"
-        if [ -n "$PORT_ARG" ]; then
-            if ! printf '%s\n' "$PORT_ARG" | grep -qE '^[0-9]+$'; then
-                echo "Error: Port must be a numeric value."
-                exit 1
+        ARG3="${3:-}"
+        ARG4="${4:-}"
+
+        PORT_ARG=""
+        PASSWORD_ARG="admin123"
+
+        # Check if the 3rd argument is numeric (Port) or text (Password)
+        if [ -n "$ARG3" ]; then
+            if printf '%s\n' "$ARG3" | grep -qE '^[0-9]+$'; then
+                PORT_ARG="$ARG3"
+                if [ -n "$ARG4" ]; then
+                    PASSWORD_ARG="$ARG4"
+                fi
+            else
+                # If ARG3 is not numeric, treat it as the password without setting a port
+                PASSWORD_ARG="$ARG3"
             fi
+        fi
+
+        if [ -n "$PORT_ARG" ]; then
             register_tenant_port "$TENANT_ID" "$PORT_ARG"
             update_runtime_ports "$PORT_ARG"
             sync_tenant_port_map
@@ -829,11 +852,9 @@ case "$COMMAND" in
             fi
         fi
 
-        
-
         echo "Adding new tenant '$TENANT_ID'..."
         echo "Initializing database for $TENANT_ID..."
-        initialize_tenant_database "$TENANT_ID" "standard"
+        initialize_tenant_database "$TENANT_ID" "standard" "$PASSWORD_ARG"
         echo "Tenant '$TENANT_ID' successfully added. Ready to use."
         ;;
 
@@ -872,81 +893,94 @@ case "$COMMAND" in
         ;;
 
     remove)
-        FORCE_REMOVE=false
-        TENANT_ARG="${2:-}"
+    FORCE_REMOVE=false
 
-        if [ "$TENANT_ARG" = "--yes" ] || [ "$TENANT_ARG" = "-y" ]; then
-            FORCE_REMOVE=true
-            TENANT_ID="${3:-}"
-        else
-            TENANT_ID="$TENANT_ARG"
+    # Fix: Prüfe sowohl Position 2 als auch 3 auf das -y Flag
+    if [ "${2:-}" = "--yes" ] || [ "${2:-}" = "-y" ]; then
+        FORCE_REMOVE=true
+        TENANT_ID="${3:-}"
+    elif [ "${3:-}" = "--yes" ] || [ "${3:-}" = "-y" ]; then
+        FORCE_REMOVE=true
+        TENANT_ID="${2:-}"
+    else
+        TENANT_ID="${2:-}"
+    fi
+
+    if [ -z "$TENANT_ID" ]; then
+        echo "Error: Please provide a tenant_id to remove."
+        exit 1
+    fi
+
+    if [ "$FORCE_REMOVE" != true ]; then
+        echo -n "WARNING: Are you sure you want to permanently delete all data for tenant '$TENANT_ID'? (y/N) "
+        read confirm
+        if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
+            echo "Removal canceled."
+            exit 0
         fi
+    fi
 
-        if [ -z "$TENANT_ID" ]; then
-            echo "Error: Please provide a tenant_id to remove."
-            exit 1
-        fi
+    echo "Removing tenant '$TENANT_ID'..."
+    APP_CONTAINER=$(docker ps -qf "name=app" | head -n 1)
+    port_to_remove=""
 
-        if [ "$FORCE_REMOVE" != true ]; then
-            echo -n "WARNING: Are you sure you want to permanently delete all data for tenant '$TENANT_ID'? (y/N) "
-            read confirm
-            if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
-                echo "Removal canceled."
-                exit 0
-            fi
-        fi
+    if [ -n "$APP_CONTAINER" ]; then
+        # MongoDB-Datenbank via PyMongo direkt im Container droppen
+        # Fix 1: Wir hängen '|| true' an, damit das Skript nicht abstürzt, falls der Befehl fehlschlägt.
+        docker exec -i "$APP_CONTAINER" python3 -c '
+import sys, os
+try:
+    import pymongo
+    tenant_id = sys.argv[1]
+    # In Docker Compose heißt der Host oft "mongodb" statt "localhost"
+    mongo_uri = os.environ.get("MONGO_URI", "mongodb://mongodb:27017/")
+    client = pymongo.MongoClient(mongo_uri, serverSelectionTimeoutMS=2000)
 
-        echo "Removing tenant '$TENANT_ID'..."
-        APP_CONTAINER=$(docker ps -qf "name=app" | head -n 1)
-        port_to_remove=""
+    # Fix 2: Wir versuchen beide Formate zu löschen, da "list" zeigt, dass sie "test" und nicht "inventar_test" heißen.
+    dbs_to_drop = [f"inventar_{tenant_id}", tenant_id]
+    existing_dbs = client.list_database_names()
 
-        if [ -n "$APP_CONTAINER" ]; then
-            # MongoDB-Datenbank via PyMongo direkt im Container droppen
-            docker exec -i "$APP_CONTAINER" python3 -c '
-    import sys, os
-    try:
-        import pymongo
-        tenant_id = sys.argv[1]
-        mongo_uri = os.environ.get("MONGO_URI", "mongodb://localhost:27017/")
-        client = pymongo.MongoClient(mongo_uri, serverSelectionTimeoutMS=2000)
-        db_name = f"inventar_{tenant_id}"
-        if db_name in client.list_database_names():
+    for db_name in dbs_to_drop:
+        if db_name in existing_dbs:
             client.drop_database(db_name)
             print(f"Dropped database: {db_name}")
-    except Exception as e:
-        print(f"Error dropping database: {e}", file=sys.stderr)
-    ' "$TENANT_ID" > /dev/null 2>&1
+except Exception as e:
+    print(f"Error dropping database: {e}", file=sys.stderr)
+' "$TENANT_ID" > /dev/null 2>&1 || true
 
-            # Konfiguration und Port via Host-Funktion bereinigen und Port ermitteln
-            if port_to_remove="$(remove_tenant_port "$TENANT_ID" 2>/dev/null)"; then
-                :
-            else
-                port_to_remove=""
-            fi
-
-            echo "Tenant '$TENANT_ID' database and config removed."
+        # Konfiguration und Port via Host-Funktion bereinigen und Port ermitteln
+        if port_to_remove="$(remove_tenant_port "$TENANT_ID" 2>/dev/null)"; then
+            :
         else
-            echo "Warning: Application container not running. Tenant database may still exist in MongoDB."
-            if port_to_remove="$(remove_tenant_port "$TENANT_ID" 2>/dev/null)"; then
-                :
-            else
-                echo "Warning: tenant '$TENANT_ID' was not configured in config.json or could not be removed."
-            fi
+            port_to_remove=""
         fi
 
-        if [ -n "$port_to_remove" ]; then
-            remove_runtime_port "$port_to_remove"
-        fi
-        remove_tenant_nginx_config "$TENANT_ID"
-        sync_tenant_port_map
-        if [ -n "$(docker ps -qf 'name=app' | head -n 1)" ]; then
-            restart_app_container
-        fi
-        if [ -n "$port_to_remove" ]; then
-            echo "Removed tenant '$TENANT_ID' and cleaned runtime port $port_to_remove."
+        echo "Tenant '$TENANT_ID' database and config removed."
+    else
+        echo "Warning: Application container not running. Tenant database may still exist in MongoDB."
+        if port_to_remove="$(remove_tenant_port "$TENANT_ID" 2>/dev/null)"; then
+            :
         else
-            echo "Removed tenant '$TENANT_ID'. No port mapping was present."
+            echo "Warning: tenant '$TENANT_ID' was not configured in config.json or could not be removed."
         fi
+    fi
+
+    if [ -n "$port_to_remove" ]; then
+        remove_runtime_port "$port_to_remove" 2>/dev/null || true
+    fi
+
+    remove_tenant_nginx_config "$TENANT_ID"
+    sync_tenant_port_map
+
+    if [ -n "$(docker ps -qf 'name=app' | head -n 1)" ]; then
+        restart_app_container || true
+    fi
+
+    if [ -n "$port_to_remove" ]; then
+        echo "Removed tenant '$TENANT_ID' and cleaned runtime port $port_to_remove."
+    else
+        echo "Removed tenant '$TENANT_ID'. No port mapping was present."
+    fi
     ;;
 
     restart-tenant)