diff --git a/scripts/capture-quietware-screenshots.mjs b/scripts/capture-quietware-screenshots.mjs
new file mode 100644
index 0000000..a2c378c
--- /dev/null
+++ b/scripts/capture-quietware-screenshots.mjs
@@ -0,0 +1,87 @@
+// Drives the dev server with Playwright bundled chromium.
+// Captures /design-system-v2 in 3 quietware modes (dark/light/HC) + a fallback.
+import { chromium } from "playwright";
+import { mkdir } from "node:fs/promises";
+
+const OUT = "/tmp/lumotia-v0.3-screenshots";
+await mkdir(OUT, { recursive: true });
+
+const browser = await chromium.launch({ headless: true });
+const ctx = await browser.newContext({
+  viewport: { width: 1440, height: 1024 },
+  deviceScaleFactor: 2,
+});
+const page = await ctx.newPage();
+
+// Capture console for diagnosis
+page.on("pageerror", e => console.error("[page error]", e.message));
+page.on("console", m => { if (m.type() === "error") console.error("[console]", m.text()); });
+
+async function setMode({ design, theme, contrast }) {
+  await page.evaluate(({ design, theme, contrast }) => {
+    const h = document.documentElement;
+    if (design) h.setAttribute("data-design", design); else h.removeAttribute("data-design");
+    if (theme) h.setAttribute("data-theme", theme); else h.removeAttribute("data-theme");
+    if (contrast) h.setAttribute("data-contrast", contrast); else h.removeAttribute("data-contrast");
+  }, { design, theme, contrast });
+}
+
+const CAPTURES = [
+  // route, modes
+  { route: "/design-system-v2", name: "design-system" },
+];
+
+const MODES = [
+  { id: "v02-dark",       design: null,         theme: null,     contrast: null,   label: "v0.2 baseline (no quietware)" },
+  { id: "quiet-dark",     design: "quietware",  theme: null,     contrast: null,   label: "Quietware dark" },
+  { id: "quiet-light",    design: "quietware",  theme: "light",  contrast: null,   label: "Quietware light" },
+  { id: "quiet-hc-dark",  design: "quietware",  theme: null,     contrast: "high", label: "Quietware high-contrast (dark base)" },
+  { id: "quiet-hc-light", design: "quietware",  theme: "light",  contrast: "high", label: "Quietware high-contrast (light base)" },
+];
+
+const BASE = "http://localhost:1420";
+
+for (const capture of CAPTURES) {
+  console.log(`\n=== ${capture.name} (${capture.route}) ===`);
+  try {
+    await page.goto(BASE + capture.route, { waitUntil: "networkidle", timeout: 30000 });
+  } catch (e) {
+    console.error(`navigation failed: ${e.message}`);
+    continue;
+  }
+  // Wait a beat for Svelte hydration + font load
+  await page.waitForTimeout(1500);
+
+  for (const mode of MODES) {
+    await setMode(mode);
+    await page.waitForTimeout(400); // CSS transitions
+    const file = `${OUT}/${capture.name}__${mode.id}.png`;
+    await page.screenshot({ path: file, fullPage: true });
+    const stats = await page.evaluate(() => ({
+      h: document.documentElement.dataset.design || "(none)",
+      t: document.documentElement.dataset.theme || "(default)",
+      c: document.documentElement.dataset.contrast || "(default)",
+    }));
+    console.log(`  ${mode.id}  design=${stats.h}  theme=${stats.t}  contrast=${stats.c}`);
+  }
+}
+
+// Also try the root route — may render the Dictation/FirstRun page if Tauri APIs
+// gracefully degrade in browser context. Worth attempting; if it crashes we just skip.
+try {
+  console.log("\n=== root route (best effort) ===");
+  await page.goto(BASE + "/", { waitUntil: "domcontentloaded", timeout: 15000 });
+  await page.waitForTimeout(2000);
+  for (const mode of MODES.slice(0, 3)) {
+    await setMode(mode);
+    await page.waitForTimeout(400);
+    const file = `${OUT}/root__${mode.id}.png`;
+    await page.screenshot({ path: file, fullPage: false });
+    console.log(`  root ${mode.id}`);
+  }
+} catch (e) {
+  console.error(`root route skipped: ${e.message}`);
+}
+
+await browser.close();
+console.log(`\nWrote screenshots to ${OUT}/`);
diff --git a/vite.config.js b/vite.config.js
index 95d2758..67a81fb 100644
--- a/vite.config.js
+++ b/vite.config.js
@@ -43,6 +43,12 @@ export default defineConfig(async () => ({
     watch: {
       ignored: ["**/src-tauri/**"],
     },
+    fs: {
+      // v0.3 Phase 4a screenshot capture: when dev server runs inside a
+      // git worktree (.worktrees/v0.3-tactile-quietware/) the parent
+      // node_modules sits one extra dir up. Allow the worktree root.
+      allow: ["..", "../.."],
+    },
   },
   test: {
     // jsdom gives storage-shim tests a real localStorage / DOMException /