1 files changed, 36 insertions, 0 deletions
diff --git a/packages/memory-graph/src/lib/inject-styles.ts b/packages/memory-graph/src/lib/inject-styles.ts
new file mode 100644
index 00000000..1a6bf4eb
--- /dev/null
+++ b/packages/memory-graph/src/lib/inject-styles.ts
@@ -0,0 +1,36 @@
+/**
+ * Runtime CSS injection for universal bundler support
+ * The CSS content is injected by the build plugin
+ */
+
+// This will be replaced by the build plugin with the actual CSS content
+declare const __MEMORY_GRAPH_CSS__: string;
+
+// Track injection state
+let injected = false;
+
+/**
+ * Inject memory-graph styles into the document head.
+ * Safe to call multiple times - will only inject once.
+ */
+export function injectStyles(): void {
+  // Only run in browser
+  if (typeof document === "undefined") return;
+
+  // Only inject once
+  if (injected) return;
+
+  // Check if already injected (e.g., by another instance)
+  if (document.querySelector('style[data-memory-graph]')) {
+    injected = true;
+    return;
+  }
+
+  injected = true;
+
+  // Create and inject style element
+  const style = document.createElement("style");
+  style.setAttribute("data-memory-graph", "");
+  style.textContent = __MEMORY_GRAPH_CSS__;
+  document.head.appendChild(style);
+}