diff --git a/shared/tab-cache.ts b/shared/tab-cache.ts
index 24cb6f4b..06d34cba 100644
--- a/shared/tab-cache.ts
+++ b/shared/tab-cache.ts
@@ -135,7 +135,7 @@ export class TabCache {
 			this.panes.set(moduleId, pane);
 
 			// Load module-specific assets
-			this.loadAssets(content.scripts, content.styles);
+			this.loadAssets(content.scripts, content.styles, content.inlineStyles, moduleId);
 
 			// Update shell state
 			this.currentModuleId = moduleId;
@@ -159,6 +159,7 @@ export class TabCache {
 		title: string;
 		scripts: string[];
 		styles: string[];
+		inlineStyles: string[];
 	} | null {
 		const parser = new DOMParser();
 		const doc = parser.parseFromString(html, "text/html");
@@ -197,11 +198,20 @@ export class TabCache {
 			styles.push(href);
 		});
 
-		return { body, title, scripts, styles };
+		// Extract inline <style> blocks (exclude shell-embedded styles)
+		const inlineStyles: string[] = [];
+		doc.querySelectorAll("head style").forEach((s) => {
+			const css = s.textContent || "";
+			// Skip the shell's own embedded styles (tab-pane, spinner, etc.)
+			if (css.includes(".rspace-tab-pane")) return;
+			if (css.trim()) inlineStyles.push(css);
+		});
+
+		return { body, title, scripts, styles, inlineStyles };
 	}
 
 	/** Load script and style assets (idempotent — browsers deduplicate module scripts) */
-	private loadAssets(scripts: string[], styles: string[]): void {
+	private loadAssets(scripts: string[], styles: string[], inlineStyles: string[] = [], moduleId?: string): void {
 		for (const src of scripts) {
 			const el = document.createElement("script");
 			el.type = "module";
@@ -217,6 +227,16 @@ export class TabCache {
 			el.href = href;
 			document.head.appendChild(el);
 		}
+
+		// Inject inline <style> blocks (tagged for deduplication)
+		for (let i = 0; i < inlineStyles.length; i++) {
+			const tag = `tab-style-${moduleId || "unknown"}-${i}`;
+			if (document.querySelector(`style[data-tab-style="${tag}"]`)) continue;
+			const el = document.createElement("style");
+			el.dataset.tabStyle = tag;
+			el.textContent = inlineStyles[i];
+			document.head.appendChild(el);
+		}
 	}
 
 	/** Show a specific pane and update shell state */