diff --git a/frontend/src/lib/assets/favicon.svg b/frontend/src/lib/assets/favicon.svg
index cc5dc66..e8f4b2f 100644
--- a/frontend/src/lib/assets/favicon.svg
+++ b/frontend/src/lib/assets/favicon.svg
@@ -1 +1,28 @@
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\ No newline at end of file
+<svg xmlns="http://www.w3.org/2000/svg"
+     viewBox="0 0 64 64"
+     width="64"
+     height="64">
+
+  <!-- Background -->
+  <rect x="0" y="0" width="64" height="64" rx="12" fill="#0f172a"/>
+
+  <!-- Graph connections -->
+  <g stroke="#38bdf8" stroke-width="2" stroke-linecap="round">
+    <line x1="18" y1="34" x2="32" y2="22"/>
+    <line x1="32" y1="22" x2="46" y2="34"/>
+    <line x1="18" y1="34" x2="18" y2="46"/>
+    <line x1="32" y1="22" x2="32" y2="46"/>
+    <line x1="46" y1="34" x2="46" y2="46"/>
+  </g>
+
+  <!-- City / data nodes -->
+  <g fill="#e5e7eb">
+    <circle cx="18" cy="34" r="3"/>
+    <circle cx="32" cy="22" r="3"/>
+    <circle cx="46" cy="34" r="3"/>
+
+    <rect x="14" y="46" width="8" height="8" rx="1"/>
+    <rect x="28" y="40" width="8" height="14" rx="1"/>
+    <rect x="42" y="44" width="8" height="10" rx="1"/>
+  </g>
+</svg>