Initial implementation: Leaflet + DWD radar + TomTom traffic

MMM-CombinedMap.css

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+.mmm-combinedmap-wrapper {
+  position: relative;
+  border-radius: 8px;
+  overflow: hidden;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+}
+
+.mmm-combinedmap-wrapper .leaflet-container {
+  background: #1a1a1a;
+}
+
+/* Hide Leaflet attribution */
+.mmm-combinedmap-wrapper .leaflet-control-attribution {
+  display: none;
+}
+
+/* Marker styling */
+.mmm-combinedmap-marker {
+  background: transparent !important;
+  border: none !important;
+}
+
+/* Radar timestamp display */
+.radar-timestamp {
+  position: absolute;
+  bottom: 8px;
+  left: 8px;
+  background: rgba(0, 0, 0, 0.7);
+  color: #fff;
+  padding: 4px 10px;
+  border-radius: 4px;
+  font-size: 12px;
+  font-family: "Roboto Condensed", sans-serif;
+  z-index: 1000;
+  pointer-events: none;
+}
+
+.radar-timestamp.forecast {
+  background: rgba(0, 100, 180, 0.8);
+}
+
+.radar-timestamp.forecast::after {
+  content: " ⟩";
+  opacity: 0.7;
+}
+
+/* Legend (optional, can be enabled) */
+.mmm-combinedmap-legend {
+  position: absolute;
+  bottom: 8px;
+  right: 8px;
+  background: rgba(0, 0, 0, 0.7);
+  padding: 6px 10px;
+  border-radius: 4px;
+  font-size: 10px;
+  color: #ccc;
+  z-index: 1000;
+}
+
+.mmm-combinedmap-legend .legend-item {
+  display: flex;
+  align-items: center;
+  margin: 2px 0;
+}
+
+.mmm-combinedmap-legend .legend-color {
+  width: 12px;
+  height: 12px;
+  margin-right: 6px;
+  border-radius: 2px;
+}
+
+/* Traffic colors */
+.legend-traffic-free { background: #00b300; }
+.legend-traffic-moderate { background: #ffcc00; }
+.legend-traffic-heavy { background: #ff6600; }
+.legend-traffic-blocked { background: #cc0000; }
+
+/* Rain intensity gradient hint */
+.legend-rain-light { background: #a0d0ff; }
+.legend-rain-moderate { background: #4080ff; }
+.legend-rain-heavy { background: #0040cc; }
+.legend-rain-extreme { background: #ff00ff; }