diff --git a/meshview/static/heatmap.html b/meshview/static/heatmap.html
index 682d45f..d8c2148 100644
--- a/meshview/static/heatmap.html
+++ b/meshview/static/heatmap.html
@@ -1,25 +1,20 @@
 <!DOCTYPE html>
-<html lang="en">
+<html>
 <head>
-<meta charset="utf-8">
-<meta name="viewport" content="width=device-width, initial-scale=1.0">
-<title>Mesh Node Density Map</title>
-
-<!-- Leaflet CSS -->
-<link
-  rel="stylesheet"
-  href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
-/>
-
+<meta charset="utf-8" />
+<title>Mesh Nodes Population Heatmap</title>
+<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" />
 <style>
-  body { margin: 0; background: #000; font-family: monospace; color: #fff; }
+  body { margin: 0; background: #000; }
   #map { height: 100vh; width: 100%; }
+
   #legend {
     position: absolute; bottom: 10px; right: 10px;
-    background: rgba(0,0,0,0.8); padding: 10px 14px;
+    background: rgba(0,0,0,0.8);
+    color: white; padding: 10px 14px;
+    font-family: monospace; font-size: 13px;
     border-radius: 5px; z-index: 1000;
     box-shadow: 0 0 10px rgba(0,0,0,0.6);
-    font-size: 13px;
   }
   .legend-item { display: flex; align-items: center; margin-bottom: 5px; }
   .legend-color { width: 18px; height: 18px; margin-right: 6px; border-radius: 3px; }
@@ -31,23 +26,30 @@
 
 <script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"></script>
 <script src="https://unpkg.com/leaflet.heat/dist/leaflet-heat.js"></script>
-
 <script>
 const map = L.map("map");
+L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
+  maxZoom: 19,
+  attribution: "© OpenStreetMap"
+}).addTo(map);
+
 let heatLayer = null;
 let nodeCoords = [];
+let hoverTooltip = L.tooltip({
+  permanent: false,
+  direction: "top",
+  className: "node-tooltip"
+});
 
 // --- Legend ---
 const legend = document.getElementById("legend");
 const legendItems = [
   { color: "#0000ff", label: "Low" },
-  { color: "#00ffff", label: "Moderate" },
+  { color: "#8000ff", label: "Moderate" },
+  { color: "#00ffff", label: "Elevated" },
   { color: "#00ff00", label: "High" },
   { color: "#ffff00", label: "Very High" },
-  { color: "#ff8000", label: "High Red" },
-  { color: "#ff0000", label: "Extreme Red" },
-  { color: "#8B0000", label: "Dark Red" },
-  { color: "#800080", label: "Purple" }
+  { color: "#ff0000", label: "Extreme" }
 ];
 legendItems.forEach(item => {
   const div = document.createElement("div");
@@ -62,19 +64,50 @@ legendItems.forEach(item => {
   legend.appendChild(div);
 });
 
-// Node count summary
-const summaryDiv = document.createElement("div");
-summaryDiv.id = "summary";
-legend.appendChild(summaryDiv);
+// --- Load nodes and create heatmap ---
+async function loadNodes() {
+  try {
+    const res = await fetch("/api/nodes?days_active=3");
+    if (!res.ok) throw new Error(`HTTP error ${res.status}`);
+    const data = await res.json();
+    const nodes = data.nodes || [];
 
-// --- Tile layer ---
-L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
-  maxZoom: 19,
-  attribution: "© OpenStreetMap"
-}).addTo(map);
+    nodeCoords = [];
+    const heatPoints = [];
+    nodes.forEach(node => {
+      const lat = node.last_lat / 1e7;
+      const lng = node.last_long / 1e7;
+      if (lat && lng && !isNaN(lat) && !isNaN(lng)) {
+        nodeCoords.push([lat, lng]);
+        heatPoints.push([lat, lng, 1.0]); // equal weight per node
+      }
+    });
+
+    if (heatLayer) map.removeLayer(heatLayer);
+    heatLayer = L.heatLayer(heatPoints, {
+      radius: 18,         // smaller circles
+      blur: 10,           // slightly tighter glow
+      maxZoom: 15,
+      minOpacity: 0.4,
+      gradient: {
+        0.0: "#0000ff",   // deep blue
+        0.2: "#8000ff",   // purple
+        0.4: "#00ffff",   // cyan
+        0.6: "#00ff00",   // green
+        0.8: "#ffff00",   // yellow
+        0.9: "#ff8000",   // orange
+        1.0: "#ff0000"    // red
+      }
+    }).addTo(map);
+
+    await setMapBoundsFromConfig();
+  } catch (err) {
+    console.error("Failed to load nodes:", err);
+  }
+}
 
 // --- Map bounds ---
-async function setMapBounds() {
+async function setMapBoundsFromConfig() {
   try {
     const res = await fetch("/api/config");
     const config = await res.json();
@@ -82,84 +115,42 @@ async function setMapBounds() {
     const topLon = parseFloat(config.site.map_top_left_lon);
     const bottomLat = parseFloat(config.site.map_bottom_right_lat);
     const bottomLon = parseFloat(config.site.map_bottom_right_lon);
-    if ([topLat, topLon, bottomLat, bottomLon].some(v => isNaN(v))) throw new Error("Invalid bounds");
-    map.fitBounds([[topLat, topLon], [bottomLat, bottomLon]]);
-  } catch {
-    map.setView([37.77, -122.42], 10); // fallback
-  }
-}
 
-// --- Load nodes and create heatmap ---
-async function loadNodes() {
-  try {
-    const res = await fetch("/api/nodes?days_active=3");
-    const data = await res.json();
-    const nodes = data.nodes || [];
-    nodeCoords = [];
-
-    if (nodes.length === 0) {
-      summaryDiv.textContent = "No recent nodes found.";
-      if (heatLayer) map.removeLayer(heatLayer);
-      return;
+    if ([topLat, topLon, bottomLat, bottomLon].some(v => isNaN(v))) {
+      throw new Error("Map bounds contain NaN");
     }
 
-    const heatPoints = [];
-    nodes.forEach(node => {
-      if (node.last_lat && node.last_long) {
-        const lat = node.last_lat / 1e7;
-        const lon = node.last_long / 1e7;
-        nodeCoords.push([lat, lon]);
-        heatPoints.push([lat, lon, 1.0]);
-      }
-    });
-
-    if (heatLayer) map.removeLayer(heatLayer);
-    heatLayer = L.heatLayer(heatPoints, {
-      radius: 35,
-      blur: 12,
-      maxZoom: 15,
-      minOpacity: 0.4,
-      gradient: {
-        0.0: "#0000ff",   // deep blue
-        0.2: "#00ffff",   // cyan
-        0.4: "#00ff00",   // green
-        0.6: "#ffff00",   // yellow
-        0.75: "#ff8000",  // orange
-        0.85: "#ff0000",  // bright red
-        0.95: "#8B0000",  // dark red
-        1.0: "#800080"    // purple
-      }
-    }).addTo(map);
-
-    summaryDiv.textContent = `Nodes: ${nodes.length}`;
-
+    map.fitBounds([[topLat, topLon], [bottomLat, bottomLon]]);
   } catch (err) {
-    console.error("Failed to load nodes:", err);
-    summaryDiv.textContent = "Error loading nodes.";
+    console.error("Failed to load map bounds from config:", err);
+    map.setView([37.77, -122.42], 9);
   }
 }
 
-// --- Hover tooltip ---
-const hoverTooltip = L.tooltip({ permanent: false, direction: 'top', offset: [0, -10] });
-
+// --- Count nearby nodes ---
 function countNearbyNodes(latlng, radiusMeters) {
   let count = 0;
-  for (const [lat, lon] of nodeCoords) {
-    if (map.distance(latlng, L.latLng(lat, lon)) <= radiusMeters) count++;
+  const latR = radiusMeters / 111320; // meters per degree lat
+  const lngR = radiusMeters / (111320 * Math.cos(latlng.lat * Math.PI / 180));
+
+  for (const [lat, lng] of nodeCoords) {
+    if (Math.abs(lat - latlng.lat) <= latR && Math.abs(lng - latlng.lng) <= lngR)
+      count++;
   }
   return count;
 }
 
+// --- Tooltip on hover ---
 map.on("mousemove", e => {
   if (!nodeCoords.length) return;
 
   const zoom = map.getZoom();
-  const radiusMeters = 2000 / Math.pow(2, zoom - 10); // dynamic radius
+  const radiusMeters = 2000 / Math.pow(2, zoom - 10); // dynamic nearness by zoom
   const count = countNearbyNodes(e.latlng, radiusMeters);
 
-  // Only show tooltip if count > 0
   if (count > 0) {
-    hoverTooltip.setLatLng(e.latlng)
+    hoverTooltip
+      .setLatLng(e.latlng)
       .setContent(`${count} nodes nearby (${radiusMeters.toFixed(0)}m radius)`)
       .addTo(map);
   } else {
@@ -167,13 +158,7 @@ map.on("mousemove", e => {
   }
 });
 
-map.on("mouseout", () => map.closeTooltip(hoverTooltip));
-
-// --- Run ---
-(async () => {
-  await setMapBounds();
-  await loadNodes();
-})();
+loadNodes();
 </script>
 </body>
 </html>
