diff --git a/app.js.backup b/app.js.backup
index 8b13789..b095f3c 100644
--- a/app.js.backup
+++ b/app.js.backup
@@ -1 +1,192 @@
+const map = L.map('map').setView([52.52, 13.405], 13);
+
+L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
+  maxZoom: 19,
+  attribution: '© OpenStreetMap contributors'
+}).addTo(map);
+
+const vehiclesLayer = L.layerGroup().addTo(map);
+const vehicleMarkers = {};
+
+const lineColors = {
+  'S45': '#CD9C53', 'S46': '#CD9C53', 'S47': '#CD9C53', 'S6': '#CD9C53', 'S65': '#CD9C53', 'S66': '#CD9C53',
+  'S42': '#CB6418',
+  'S4': '#AD5937', 'S41': '#AD5937',
+  'U5': '#7E5330', 'U55': '#7E5330',
+  'S9': '#992746', 'S95': '#992746', 'S96': '#992746',
+  'U12': ['#7DAD4C', '#DA421E'],
+  'U2': '#DA421E',
+  'S3': '#EB7405', 'S5': '#EB7405', 'S55': '#EB7405', 'S56': '#EB7405',
+  'U9': '#F3791D',
+  'S3-wannsee': '#F0D722', 'U4': '#F0D722',
+  'U1': '#7DAD4C', 'U15': '#7DAD4C',
+  'S8': '#66AA22', 'S85': '#66AA22', 'S86': '#66AA22',
+  'S2': '#007734', 'S21': '#007734', 'S25': '#007734', 'S26': '#007734',
+  'U3': '#16683D', 'U35': '#16683D',
+  'S3-charlottenburg': '#009BD5', 'U7': '#009BD5',
+  'S10': '#0082C4', 'S19': '#0082C4',
+  'S3-berlin-schoenefeld': '#0066AD', 'S35': '#0066AD', 'S36': '#0066AD',
+  'U8': '#224F86',
+  'S7': '#816DA6', 'S75': '#816DA6', 'S76': '#816DA6',
+  'U6': '#8C6DAB',
+  'S1': '#DA6BA2', 'S15': '#DA6BA2', 'S16': '#DA6BA2', 'U0': '#DA6BA2',
+  'U10': '#808080', 'U11': '#808080',
+  'F10': '#528DBA',
+  'F11': '#528DBA',
+  'F12': '#528DBA',
+  'F21': '#528DBA',
+  'F23': '#528DBA',
+  'F24': '#528DBA'
+};
+
+const symbols = {
+  bus: '🚌',
+  tram: '🚎',
+  subway: '🚉',
+  suburban: '🚋',
+  regional: '🚆',
+  express: '🚄',
+  longDistance: '🚅',
+  ferry: '🛥️'
+};
+
+function getLineColor(lineName, product) {
+  if(lineName === 'U12') return null;
+
+  if(lineName.startsWith('S3 ')) {
+    if(lineName.toLowerCase().includes('wannsee')) return lineColors['S3-wannsee'];
+    if(lineName.toLowerCase().includes('charlottenburg') || lineName.toLowerCase().includes('schönefeld')) return lineColors['S3-berlin-schoenefeld'];
+    return lineColors['S3'];
+  }
+
+  if(lineColors[lineName]) return lineColors[lineName];
+  if(product === 'suburban') return '#CD9C53';
+  if(product === 'subway') return '#7DAD4C';
+  return '#666';
+}
+
+function createDivIcon(vehicle) {
+  const product = vehicle.line?.product;
+  const lineName = vehicle.line?.name || '?';
+  const symbol = symbols[product] || '❓';
+
+  if(lineName === 'U12') {
+    const iconHtml = `
+      <div style="text-align:center; font-size:24px; position: relative; width: 30px; height: 40px;">
+        <svg width="30" height="40" viewBox="0 0 30 40" xmlns="http://www.w3.org/2000/svg" style="position:absolute; top:0; left:0;">
+          <defs>
+            <linearGradient id="u12grad" x1="0" y1="0" x2="1" y2="1">
+              <stop offset="0%" stop-color="#7DAD4C" />
+              <stop offset="50%" stop-color="#7DAD4C" />
+              <stop offset="50%" stop-color="#DA421E" />
+              <stop offset="100%" stop-color="#DA421E" />
+            </linearGradient>
+          </defs>
+          <rect width="30" height="40" fill="url(#u12grad)" />
+        </svg>
+        <div style="position:absolute; top:0; left:0; width:30px; height:40px; line-height:40px; font-size:24px; font-weight:bold; color:#fff; mix-blend-mode: difference;">
+          ${symbol}
+        </div>
+        <div class="line-label" style="position:absolute; bottom:0; left:50%; transform: translateX(-50%); font-size:12px; background:none; color:#000; font-weight:bold; mix-blend-mode:none;">
+          U12
+        </div>
+      </div>
+    `;
+    return L.divIcon({
+      html: iconHtml,
+      className: '',
+      iconSize: [30, 40],
+      iconAnchor: [15, 20]
+    });
+  }
+
+  const lineColor = getLineColor(lineName, product);
+  const labelStyle = `background: ${lineColor}; color: white; padding: 2px 6px; border-radius: 3px; display: inline-block; font-weight: bold; font-size: 12px; user-select: none; font-family: Arial, sans-serif;`;
+
+  const iconHtml = `
+    <div style="text-align: center; font-size: 26px; line-height: 1;">
+      <div style="color: ${lineColor}; filter: drop-shadow(0 0 1px rgba(0,0,0,0.5));">${symbol}</div>
+      <div class="line-label" style="${labelStyle}">${lineName}</div>
+    </div>
+  `;
+
+  return L.divIcon({
+    html: iconHtml,
+    className: '',
+    iconSize: [30, 40],
+    iconAnchor: [15, 20]
+  });
+}
+
+async function loadVehicles() {
+  const bounds = map.getBounds();
+  const bbox = `north=${bounds.getNorth()}&west=${bounds.getWest()}&south=${bounds.getSouth()}&east=${bounds.getEast()}`;
+
+  try {
+    const res = await fetch(`https://v6.vbb.transport.rest/radar?${bbox}&results=100&duration=30`);
+    const result = await res.json();
+    const data = result.movements || [];
+
+    const newIds = new Set();
+
+    data.forEach(vehicle => {
+      const id = vehicle.tripId;
+      const loc = vehicle.location;
+      if (!loc || !loc.latitude || !loc.longitude) return;
+
+      newIds.add(id);
+      const icon = createDivIcon(vehicle);
+
+      if (vehicleMarkers[id]) {
+        vehicleMarkers[id].setLatLng([loc.latitude, loc.longitude]);
+      } else {
+        const marker = L.marker([loc.latitude, loc.longitude], { icon })
+          .bindPopup(`
+            <b>Linie:</b> ${vehicle.line?.name || 'unbekannt'}<br>
+            <b>Typ:</b> ${vehicle.line?.product || 'unbekannt'}<br>
+            <b>Richtung:</b> ${vehicle.direction || 'unbekannt'}
+          `)
+          .addTo(vehiclesLayer);
+        vehicleMarkers[id] = marker;
+      }
+    });
+
+    Object.keys(vehicleMarkers).forEach(id => {
+      if (!newIds.has(id)) {
+        vehiclesLayer.removeLayer(vehicleMarkers[id]);
+        delete vehicleMarkers[id];
+      }
+    });
+  } catch (e) {
+    console.error('Fehler beim Laden der Fahrzeuge:', e);
+  }
+}
+
+function locateAndLoad() {
+  if (!navigator.geolocation) {
+    alert('Geolocation nicht unterstützt');
+    loadVehicles();
+    return;
+  }
+  navigator.geolocation.getCurrentPosition(pos => {
+    const { latitude, longitude } = pos.coords;
+    map.setView([latitude, longitude], 14);
+
+    const locationIcon = L.divIcon({
+      className: 'user-location-icon',
+      iconSize: [12, 12],
+      iconAnchor: [6, 6]
+    });
+
+    L.marker([latitude, longitude], { icon: locationIcon }).addTo(map);
+    loadVehicles();
+  }, () => {
+    map.setView([52.52, 13.405], 13);
+    loadVehicles();
+  });
+}
+
+locateAndLoad();
+setInterval(loadVehicles, 610);
+map.on('moveend', loadVehicles);