improve edges

src/styles.css

@@ -32,6 +32,25 @@ body {
     box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.15);
 }
 
+/* Animated React Flow edges: thicker stroke + path animation */
+.react-flow__edge path.animated-edge-path,
+.animated-edge-path {
+    stroke-width: 4;
+    stroke: hsl(var(--foreground) / 0.6);
+    fill: none;
+    stroke-dasharray: 8 6;
+    animation: edge-flow 0.6s linear infinite;
+}
+
+@keyframes edge-flow {
+    from {
+        stroke-dashoffset: 0;
+    }
+    to {
+        stroke-dashoffset: 14;
+    }
+}
+
 /* Small helper for monospace pre output */
 pre {
     font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, 'Roboto Mono', 'Courier New', monospace;