diff --git a/www/src/components/PageHero.astro b/www/src/components/PageHero.astro
index ef5f3f3..85660c5 100644
--- a/www/src/components/PageHero.astro
+++ b/www/src/components/PageHero.astro
@@ -32,7 +32,7 @@ const { title, subtitle, image, eyebrow, constrain = false } = Astro.props;
   .page-hero__copy { max-width: 600px; }
   .page-hero--constrained { background-image: var(--hero-image), linear-gradient(var(--color-tint), var(--color-tint)); background-clip: content-box, border-box; background-origin: content-box, border-box; background-position: center, center; background-repeat: no-repeat, repeat; background-size: cover, auto; padding-inline: max(0px, calc((100% - var(--container-w)) / 2)); }
   @media (max-width: 760px) {
-    .page-hero__heading { background: #fffb; padding: 2rem; }
+    .page-hero__heading { background: #fffb; box-sizing: border-box; max-width: 100%; padding: 2rem; width: 100%; }
     .page-hero--image > .container { padding-block: 6.25rem; }
     .page-hero--image { text-align: center; }
     .page-hero--image h1, .page-hero--image h2, .page-hero__copy { margin-inline: auto; }
diff --git a/www/src/layouts/BlogIndexLayout.astro b/www/src/layouts/BlogIndexLayout.astro
index 0461afa..4771c46 100644
--- a/www/src/layouts/BlogIndexLayout.astro
+++ b/www/src/layouts/BlogIndexLayout.astro
@@ -28,7 +28,7 @@ const { entry } = await getPublication(Astro.url.pathname);
 <style>
   :global(.library-intro) { background: var(--color-primary); color: white; padding-block: 3rem; }
   :global(.library-intro h2) { color: white; }
-  :global(.library-layout) { align-items: start; display: grid; gap: 3rem; grid-template-columns: 1fr 240px; }
+  :global(.library-layout) { align-items: start; display: grid; gap: 3rem; grid-template-columns: minmax(0, 1fr) 240px; }
   :global(.library-sidebar) { position: sticky; top: 1rem; }
   :global(.library-sidebar h2) { font-size: 1.1rem; margin-top: 2rem; }
   :global(.library-sidebar ul) { list-style: none; padding: 0; }
diff --git a/www/tools/phase10-artifact-verify.mjs b/www/tools/phase10-artifact-verify.mjs
new file mode 100644
index 0000000..13a4223
--- /dev/null
+++ b/www/tools/phase10-artifact-verify.mjs
@@ -0,0 +1,118 @@
+import fs from 'node:fs/promises';
+import path from 'node:path';
+import { createHash } from 'node:crypto';
+import fg from 'fast-glob';
+
+const readText = async (file) => fs.readFile(file, 'utf8');
+
+function hrefValues(html, rel) {
+  const values = [];
+  const pattern = new RegExp(`<link\\b[^>]*\\brel=["']${rel}["'][^>]*\\bhref=["']([^"']+)["']`, 'gi');
+  for (const match of html.matchAll(pattern)) values.push(match[1]);
+  return values;
+}
+
+function routeFromHtml(file, root) {
+  const relative = path.relative(root, file).replaceAll(path.sep, '/');
+  if (relative === 'index.html') return '/';
+  if (relative.endsWith('/index.html')) return `/${relative.slice(0, -'/index.html'.length)}`;
+  return `/${relative.replace(/\.html$/, '')}`;
+}
+
+function formActions(html) {
+  return [...html.matchAll(/<form\b([^>]*)>/gi)].map((match) =>
+    match[1].match(/\baction=["']([^"']*)["']/i)?.[1] ?? null);
+}
+
+function unsafeSignals(html) {
+  const signals = [];
+  if (/<iframe\b[^>]*\bsrc=["'][^"']*jotform/i.test(html)) signals.push('active Jotform iframe');
+  if (/<script\b[^>]*\bsrc=["'][^"']*(?:jotform|googletagmanager|google-analytics|doubleclick)/i.test(html)) signals.push('active vendor tracking/form script');
+  if (/data-(?:form|forms)-mode=["']live["']/i.test(html)) signals.push('live form mode');
+  if (/api\.azinstitute4autism\.com/i.test(html)) signals.push('production API origin');
+  if (/AIza[0-9A-Za-z_-]{20,}|-----BEGIN (?:RSA|OPENSSH|EC) PRIVATE KEY-----|(?:api[_-]?key|secret|password)\s*[:=]/i.test(html)) signals.push('credential-like content');
+  return signals;
+}
+
+export async function verifyArtifact(root, mode = 'staging') {
+  const htmlFiles = (await fg('**/*.html', { cwd: root, absolute: true })).sort();
+  const routes = [];
+  const canonicalMap = new Map();
+  const errors = [];
+  const warnings = [];
+  let hreflangLinks = 0;
+  let activeForms = 0;
+  let secretSignals = [];
+
+  for (const file of htmlFiles) {
+    const html = await readText(file);
+    const route = routeFromHtml(file, root);
+    const robots = html.match(/<meta\b[^>]*\bname=["']robots["'][^>]*\bcontent=["']([^"']*)["']/i)?.[1] ?? null;
+    const canonical = html.match(/<link\b[^>]*\brel=["']canonical["'][^>]*\bhref=["']([^"']+)["']/i)?.[1] ?? null;
+    const title = html.match(/<title>([^<]*)<\/title>/i)?.[1]?.trim() ?? '';
+    const actions = formActions(html);
+    const nonSearchActions = actions.filter((action) => action && action !== '/search');
+    const signals = unsafeSignals(html);
+    if (!title) errors.push(`${route}: missing title`);
+    if (!canonical) errors.push(`${route}: missing canonical`);
+    if (!robots) errors.push(`${route}: missing robots directive`);
+    if (mode === 'staging' && robots !== 'noindex,nofollow') errors.push(`${route}: staging robots is ${robots ?? 'missing'}`);
+    if (canonical) {
+      const prior = canonicalMap.get(canonical);
+      if (prior) errors.push(`${route}: duplicate canonical ${canonical} (also ${prior})`);
+      canonicalMap.set(canonical, route);
+    }
+    hreflangLinks += hrefValues(html, 'alternate').filter((href) => href).length;
+    if (signals.length) secretSignals.push({ route, signals });
+    if (nonSearchActions.length) activeForms += nonSearchActions.length;
+    routes.push({ route, title, robots, canonical, nativeForms: actions.length, nonSearchActions: nonSearchActions.length });
+  }
+
+  const sitemapFile = path.join(root, 'sitemap.xml');
+  const sitemap = await fs.readFile(sitemapFile, 'utf8').catch(() => '');
+  const sitemapRoutes = [...sitemap.matchAll(/<loc>([^<]+)<\/loc>/gi)].map((match) => match[1]);
+  const reviewIndex = htmlFiles.some((file) => routeFromHtml(file, root) === '/lp');
+  if (mode === 'staging') {
+    if (sitemapRoutes.length) errors.push(`staging sitemap contains ${sitemapRoutes.length} URLs`);
+    if (hreflangLinks) errors.push(`staging emits ${hreflangLinks} hreflang links`);
+    if (!reviewIndex) errors.push('staging /lp review index is missing');
+  } else {
+    if (!sitemapRoutes.length) errors.push('indexing-enabled sitemap is empty');
+    if (reviewIndex) errors.push('indexing-enabled artifact contains staging-only /lp review index');
+  }
+  if (activeForms) errors.push(`found ${activeForms} non-search native form action(s)`);
+  if (secretSignals.length) errors.push(`unsafe artifact signals: ${JSON.stringify(secretSignals)}`);
+
+  const files = (await fg('**/*', { cwd: root, absolute: true, onlyFiles: true })).sort();
+  const digest = createHash('sha256');
+  for (const file of files) {
+    const relative = path.relative(root, file).replaceAll(path.sep, '/');
+    digest.update(relative);
+    digest.update('\0');
+    digest.update(createHash('sha256').update(await fs.readFile(file)).digest('hex'));
+    digest.update('\n');
+  }
+  return {
+    mode,
+    htmlRoutes: htmlFiles.length,
+    sitemapUrls: sitemapRoutes.length,
+    hreflangLinks,
+    reviewIndex,
+    activeNativeFormActions: activeForms,
+    artifactFiles: files.length,
+    artifactSha256: digest.digest('hex'),
+    routes,
+    errors,
+    warnings,
+    passed: errors.length === 0,
+  };
+}
+
+if (process.argv[1] && path.resolve(process.argv[1]) === path.resolve(new URL(import.meta.url).pathname)) {
+  const mode = process.argv.find((arg) => arg.startsWith('--mode='))?.slice('--mode='.length) ?? 'staging';
+  const root = process.argv.find((arg) => arg.startsWith('--root='))?.slice('--root='.length) ?? 'dist';
+  if (!['staging', 'indexing'].includes(mode)) throw new Error(`Unsupported mode: ${mode}`);
+  const result = await verifyArtifact(path.resolve(root), mode);
+  console.log(JSON.stringify(result, null, 2));
+  if (!result.passed) process.exitCode = 1;
+}
diff --git a/www/tools/phase10-artifact.test.mjs b/www/tools/phase10-artifact.test.mjs
new file mode 100644
index 0000000..51d019b
--- /dev/null
+++ b/www/tools/phase10-artifact.test.mjs
@@ -0,0 +1,58 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs/promises';
+import os from 'node:os';
+import path from 'node:path';
+import test from 'node:test';
+import { verifyArtifact } from './phase10-artifact-verify.mjs';
+
+async function fixture(mode = 'staging') {
+  const root = await fs.mkdtemp(path.join(os.tmpdir(), 'aia-phase10-artifact-'));
+  const pages = mode === 'staging'
+    ? [['index.html', 'noindex,nofollow'], ['lp/index.html', 'noindex,nofollow']]
+    : [['index.html', 'index,follow']];
+  for (const [file, robots] of pages) {
+    const target = path.join(root, file);
+    await fs.mkdir(path.dirname(target), { recursive: true });
+    await fs.writeFile(target, `<!doctype html><html><head><title>${file}</title><meta name="robots" content="${robots}"><link rel="canonical" href="https://www.azinstitute4autism.com/${file}"></head><body><main><h1>${file}</h1></main></body></html>`);
+  }
+  await fs.writeFile(path.join(root, 'sitemap.xml'), mode === 'staging' ? '<urlset></urlset>' : '<urlset><url><loc>https://www.azinstitute4autism.com/</loc></url></urlset>');
+  return root;
+}
+
+test('staging artifact requires noindex, empty sitemap, no hreflang and review index', async () => {
+  const result = await verifyArtifact(await fixture('staging'), 'staging');
+  assert.equal(result.passed, true);
+  assert.equal(result.sitemapUrls, 0);
+  assert.equal(result.reviewIndex, true);
+});
+
+test('indexing artifact requires sitemap and excludes review index', async () => {
+  const result = await verifyArtifact(await fixture('indexing'), 'indexing');
+  assert.equal(result.passed, true);
+  assert.equal(result.sitemapUrls, 1);
+  assert.equal(result.reviewIndex, false);
+});
+
+test('staging artifact rejects active native form actions', async () => {
+  const root = await fixture('staging');
+  await fs.appendFile(path.join(root, 'index.html'), '<form action="https://example.invalid/submit"></form>');
+  const result = await verifyArtifact(root, 'staging');
+  assert.equal(result.passed, false);
+  assert.ok(result.errors.some((error) => error.includes('native form action')));
+});
+
+test('artifact rejects live form mode and production API origin', async () => {
+  const root = await fixture('staging');
+  await fs.appendFile(path.join(root, 'index.html'), '<div data-form-mode="live">https://api.azinstitute4autism.com</div>');
+  const result = await verifyArtifact(root, 'staging');
+  assert.equal(result.passed, false);
+  assert.ok(result.errors.some((error) => error.includes('unsafe artifact signals')));
+});
+
+test('artifact digest is deterministic for unchanged files', async () => {
+  const root = await fixture('staging');
+  const first = await verifyArtifact(root, 'staging');
+  const second = await verifyArtifact(root, 'staging');
+  assert.equal(first.artifactSha256, second.artifactSha256);
+  assert.equal(first.artifactFiles, second.artifactFiles);
+});
diff --git a/www/tools/phase10-browser-regression.mjs b/www/tools/phase10-browser-regression.mjs
new file mode 100644
index 0000000..5909d7d
--- /dev/null
+++ b/www/tools/phase10-browser-regression.mjs
@@ -0,0 +1,111 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs/promises';
+import http from 'node:http';
+import net from 'node:net';
+import path from 'node:path';
+import { spawn } from 'node:child_process';
+import { fileURLToPath, pathToFileURL } from 'node:url';
+import fg from 'fast-glob';
+import { setTimeout as delay } from 'node:timers/promises';
+
+const root = fileURLToPath(new URL('../', import.meta.url));
+const moduleName = process.env.PLAYWRIGHT_MODULE
+  ? pathToFileURL(path.resolve(process.env.PLAYWRIGHT_MODULE)).href : 'playwright';
+const executablePath = process.env.CHROMIUM_EXECUTABLE;
+const output = await fs.mkdtemp('/tmp/aia-phase10-browser-');
+const result = { startedAt: new Date().toISOString(), routeCount: 0, opened: 0, failures: [], pageErrors: [], consoleErrors: [], blocked: [], productionAttempts: [], screenshots: [], status: 'failed' };
+let browser;
+let preview;
+
+function routeFromHtml(file) {
+  const relative = path.relative(path.join(root, 'dist'), file).replaceAll(path.sep, '/');
+  if (relative === 'index.html') return '/';
+  return `/${relative.endsWith('/index.html') ? relative.slice(0, -'/index.html'.length) : relative.replace(/\.html$/, '')}`;
+}
+
+function isProductionLike(url) {
+  return /(?:api\.azinstitute4autism\.com|jotform|google-analytics|googletagmanager|doubleclick|googleadservices|hubspot)/i.test(url.hostname + url.pathname);
+}
+
+const reserve = net.createServer();
+await new Promise((resolve, reject) => { reserve.once('error', reject); reserve.listen(0, '127.0.0.1', resolve); });
+const port = reserve.address().port;
+await new Promise((resolve) => reserve.close(resolve));
+const origin = `http://127.0.0.1:${port}`;
+
+try {
+  const htmlFiles = (await fg('**/*.html', { cwd: path.join(root, 'dist'), absolute: true })).sort();
+  const routes = htmlFiles.map(routeFromHtml);
+  result.routeCount = routes.length;
+  const { chromium } = await import(moduleName);
+  browser = await chromium.launch(executablePath ? { headless: true, executablePath } : { headless: true });
+  result.browser = browser.version();
+  preview = spawn(process.execPath, ['node_modules/astro/bin/astro.mjs', 'preview', '--host', '127.0.0.1', '--port', String(port)], {
+    cwd: root, env: { ...process.env, ASTRO_TELEMETRY_DISABLED: '1' }, stdio: 'ignore'
+  });
+  const reachable = async () => new Promise((resolve) => {
+    const request = http.get(origin + '/', (response) => { response.resume(); resolve(response.statusCode === 200); });
+    request.setTimeout(500, () => request.destroy());
+    request.on('error', () => resolve(false));
+  });
+  for (let attempt = 0; attempt < 60 && !(await reachable()); attempt++) await delay(250);
+  assert.equal(await reachable(), true, 'Astro preview was not reachable');
+  const context = await browser.newContext({ viewport: { width: 1440, height: 900 }, deviceScaleFactor: 1, serviceWorkers: 'block', acceptDownloads: false });
+  assert.equal(typeof context.routeWebSocket, 'function', 'Playwright lacks WebSocket isolation');
+  await context.routeWebSocket('**/*', (socket) => socket.close());
+  await context.route('**/*', (route) => {
+    const request = route.request();
+    const url = new URL(request.url());
+    if (url.origin !== origin || !['GET', 'HEAD'].includes(request.method())) {
+      const attempt = { origin: url.origin, path: url.pathname, method: request.method() };
+      result.blocked.push(attempt);
+      if (isProductionLike(url)) result.productionAttempts.push(attempt);
+      return route.abort();
+    }
+    return route.continue();
+  });
+  const page = await context.newPage();
+  page.on('pageerror', (error) => result.pageErrors.push({ route: page.url(), message: String(error.message) }));
+  page.on('console', (message) => { if (message.type() === 'error') result.consoleErrors.push({ route: page.url(), message: message.text() }); });
+  const screenshotRoutes = new Set(['/', '/es', '/contact', '/ar/library/aba-school-readiness-guide', '/tour', '/lp/aba-therapy']);
+  for (const route of routes) {
+    try {
+      const response = await page.goto(origin + route, { waitUntil: 'domcontentloaded', timeout: 15000 });
+      assert.equal(response?.status(), 200);
+      assert.equal(new URL(page.url()).origin, origin);
+      assert.ok((await page.title()).trim(), 'missing title');
+      assert.equal(await page.locator('link[rel="canonical"]').count(), 1, 'canonical count');
+      assert.equal(await page.locator('meta[name="robots"]').getAttribute('content'), 'noindex,nofollow', 'staging robots');
+      const nonSearchForms = await page.locator('main form').evaluateAll((forms) => forms.filter((form) => {
+        const action = form.getAttribute('action');
+        return action && action !== '/search';
+      }).length);
+      assert.equal(nonSearchForms, 0, 'non-search form found');
+      const overflow = await page.evaluate(() => ({ scrollWidth: document.documentElement.scrollWidth, clientWidth: document.documentElement.clientWidth }));
+      if (overflow.scrollWidth > overflow.clientWidth + 1) result.failures.push({ route, issue: 'page-level horizontal overflow', overflow });
+      if (screenshotRoutes.has(route)) {
+        const name = route === '/' ? 'home' : route.slice(1).replaceAll('/', '-') || 'root';
+        const screenshot = path.join(output, `${name}.png`);
+        await page.screenshot({ path: screenshot, fullPage: true });
+        result.screenshots.push({ route, path: screenshot });
+      }
+      result.opened++;
+    } catch (error) {
+      result.failures.push({ route, issue: String(error.message) });
+    }
+  }
+  result.status = result.failures.length || result.productionAttempts.length ? 'failed' : 'passed';
+} catch (error) {
+  result.error = String(error.message);
+} finally {
+  await browser?.close();
+  if (preview && preview.exitCode === null) {
+    preview.kill('SIGTERM');
+    await Promise.race([new Promise((resolve) => preview.once('exit', resolve)), delay(3000)]);
+    if (preview.exitCode === null) preview.kill('SIGKILL');
+  }
+  result.finishedAt = new Date().toISOString();
+  await fs.writeFile(path.join(output, 'result.json'), JSON.stringify(result, null, 2) + '\n');
+  console.log(JSON.stringify({ ...result, output }, null, 2));
+  if (result.status !== 'passed') process.exitCode = 1;
+}
diff --git a/www/tools/phase10-release-rehearsal.mjs b/www/tools/phase10-release-rehearsal.mjs
new file mode 100644
index 0000000..6d0e8d6
--- /dev/null
+++ b/www/tools/phase10-release-rehearsal.mjs
@@ -0,0 +1,60 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs/promises';
+import http from 'node:http';
+import os from 'node:os';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { verifyArtifact } from './phase10-artifact-verify.mjs';
+
+const root = fileURLToPath(new URL('../', import.meta.url));
+const dist = path.join(root, 'dist');
+const rehearsalRoot = await fs.mkdtemp(path.join(os.tmpdir(), 'aia-release-rehearsal-'));
+const releases = path.join(rehearsalRoot, 'releases');
+await fs.mkdir(releases, { recursive: true });
+const releaseA = path.join(releases, 'release-a');
+const releaseB = path.join(releases, 'release-b');
+await fs.cp(dist, releaseA, { recursive: true });
+await fs.cp(dist, releaseB, { recursive: true });
+await fs.writeFile(path.join(releaseA, '__release-marker.txt'), 'release-a\n');
+await fs.writeFile(path.join(releaseB, '__release-marker.txt'), 'release-b\n');
+const current = path.join(rehearsalRoot, 'current');
+await fs.symlink(releaseA, current);
+
+const contentTypes = { '.html': 'text/html', '.xml': 'application/xml', '.txt': 'text/plain', '.css': 'text/css', '.js': 'text/javascript', '.svg': 'image/svg+xml', '.webp': 'image/webp', '.png': 'image/png', '.jpg': 'image/jpeg', '.woff2': 'font/woff2' };
+const server = http.createServer(async (request, response) => {
+  try {
+    const pathname = decodeURIComponent(new URL(request.url ?? '/', 'http://127.0.0.1').pathname);
+    const clean = pathname.replace(/^\/+/, '');
+    const candidates = [clean, clean.endsWith('/') ? `${clean}index.html` : `${clean}/index.html`, clean === '' ? 'index.html' : null].filter(Boolean);
+    let target;
+    for (const candidate of candidates) {
+      const candidatePath = path.resolve(current, candidate);
+      if (candidatePath.startsWith(path.resolve(current)) && await fs.stat(candidatePath).then((stat) => stat.isFile()).catch(() => false)) { target = candidatePath; break; }
+    }
+    if (!target) { response.writeHead(404, { 'content-type': 'text/plain' }); response.end('Not found'); return; }
+    const body = await fs.readFile(target);
+    response.writeHead(200, { 'content-type': contentTypes[path.extname(target)] ?? 'application/octet-stream', 'cache-control': path.extname(target) === '.html' ? 'no-cache' : 'public, max-age=31536000, immutable' });
+    response.end(body);
+  } catch { response.writeHead(400); response.end('Bad request'); }
+});
+await new Promise((resolve) => server.listen(0, '127.0.0.1', resolve));
+const address = server.address();
+const origin = `http://127.0.0.1:${address.port}`;
+const request = (pathname) => new Promise((resolve, reject) => {
+  const req = http.get(origin + pathname, (res) => { const chunks = []; res.on('data', (chunk) => chunks.push(chunk)); res.on('end', () => resolve({ status: res.statusCode, type: res.headers['content-type'], cache: res.headers['cache-control'], body: Buffer.concat(chunks).toString('utf8') })); });
+  req.on('error', reject);
+});
+const checks = [];
+const check = async (name, fn) => { await fn(); checks.push(name); };
+await check('staging artifact verifier', async () => assert.equal((await verifyArtifact(releaseA, 'staging')).passed, true));
+await check('root route', async () => assert.equal((await request('/')).status, 200));
+await check('locale route', async () => assert.equal((await request('/es')).status, 200));
+await check('slashless and trailing-slash routes', async () => { assert.equal((await request('/library')).status, 200); assert.equal((await request('/library/')).status, 200); });
+await check('query strings preserved by static serving', async () => assert.equal((await request('/search?term=aba&lang=es')).status, 200));
+await check('asset MIME type', async () => assert.match((await request('/assets/images/favicon.svg')).type, /image\/svg/));
+await check('robots and empty staging sitemap', async () => { const robots = await request('/robots.txt'); const sitemap = await request('/sitemap.xml'); assert.equal(robots.status, 200); assert.equal((sitemap.body.match(/<url>/g) ?? []).length, 0); });
+await check('real 404', async () => assert.equal((await request('/does-not-exist')).status, 404));
+await check('atomic release switch', async () => { await fs.rename(current, `${current}.old`); await fs.symlink(releaseB, current); assert.match((await request('/__release-marker.txt')).body, /release-b/); });
+await check('rollback restores prior release', async () => { await fs.unlink(current); await fs.symlink(releaseA, current); assert.match((await request('/__release-marker.txt')).body, /release-a/); });
+await new Promise((resolve) => server.close(resolve));
+console.log(JSON.stringify({ status: 'passed', origin, rehearsalRoot, checks, productionContact: false }, null, 2));
diff --git a/www/tools/phase10-responsive.mjs b/www/tools/phase10-responsive.mjs
new file mode 100644
index 0000000..044a9e4
--- /dev/null
+++ b/www/tools/phase10-responsive.mjs
@@ -0,0 +1,58 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs/promises';
+import http from 'node:http';
+import net from 'node:net';
+import path from 'node:path';
+import { spawn } from 'node:child_process';
+import { fileURLToPath, pathToFileURL } from 'node:url';
+import { setTimeout as delay } from 'node:timers/promises';
+
+const root = fileURLToPath(new URL('../', import.meta.url));
+const moduleName = process.env.PLAYWRIGHT_MODULE ? pathToFileURL(path.resolve(process.env.PLAYWRIGHT_MODULE)).href : 'playwright';
+const routes = ['/', '/es', '/contact', '/es/contact', '/client-consultation', '/es/client-consultation', '/referrals', '/aba-therapy', '/autism-evaluations', '/learner-social-club', '/library', '/library/page/6', '/ar/library/aba-school-readiness-guide', '/search', '/tour', '/privacy-policy', '/es/privacy-policy', '/lp/aba-therapy', '/lp/aba-insurance', '/lp/aba-ahcccs', '/lp/aba-private-pay', '/lp/early-intervention'];
+const widths = [320, 390, 768, 1024, 1440];
+const selected = new Set(['/', '/es', '/tour', '/ar/library/aba-school-readiness-guide', '/lp/aba-therapy']);
+const output = await fs.mkdtemp('/tmp/aia-phase10-responsive-');
+const evidence = { startedAt: new Date().toISOString(), routes: routes.length, widths, checks: 0, failures: [], blocked: [], productionAttempts: [], screenshots: [], status: 'failed' };
+let browser; let preview;
+const reserve = net.createServer();
+await new Promise((resolve, reject) => { reserve.once('error', reject); reserve.listen(0, '127.0.0.1', resolve); });
+const port = reserve.address().port; await new Promise((resolve) => reserve.close(resolve));
+const origin = `http://127.0.0.1:${port}`;
+const production = (url) => /(?:api\.azinstitute4autism\.com|jotform|google-analytics|googletagmanager|doubleclick|hubspot)/i.test(url.hostname + url.pathname);
+try {
+  const { chromium } = await import(moduleName);
+  browser = await chromium.launch(process.env.CHROMIUM_EXECUTABLE ? { headless: true, executablePath: process.env.CHROMIUM_EXECUTABLE } : { headless: true });
+  preview = spawn(process.execPath, ['node_modules/astro/bin/astro.mjs', 'preview', '--host', '127.0.0.1', '--port', String(port)], { cwd: root, env: { ...process.env, ASTRO_TELEMETRY_DISABLED: '1' }, stdio: 'ignore' });
+  const reachable = () => new Promise((resolve) => { const request = http.get(origin + '/', (response) => { response.resume(); resolve(response.statusCode === 200); }); request.setTimeout(500, () => request.destroy()); request.on('error', () => resolve(false)); });
+  for (let i = 0; i < 60 && !(await reachable()); i++) await delay(250);
+  assert.equal(await reachable(), true);
+  for (const width of widths) {
+    const context = await browser.newContext({ viewport: { width, height: width < 500 ? 844 : 900 }, deviceScaleFactor: 1, serviceWorkers: 'block' });
+    await context.routeWebSocket('**/*', (socket) => socket.close());
+    await context.route('**/*', (route) => { const request = route.request(); const url = new URL(request.url()); if (url.origin !== origin || !['GET', 'HEAD'].includes(request.method())) { const item = { origin: url.origin, path: url.pathname, method: request.method() }; evidence.blocked.push(item); if (production(url)) evidence.productionAttempts.push(item); return route.abort(); } return route.continue(); });
+    const page = await context.newPage();
+    for (const route of routes) {
+      evidence.checks++;
+      try {
+        const response = await page.goto(origin + route, { waitUntil: 'domcontentloaded', timeout: 15000 });
+        assert.equal(response?.status(), 200);
+        await page.evaluate(() => document.fonts.ready);
+        await page.waitForTimeout(100);
+        const result = await page.evaluate(() => ({ width: innerWidth, scrollWidth: document.documentElement.scrollWidth, lang: document.documentElement.lang, dir: document.documentElement.dir, h1: document.querySelectorAll('main h1').length }));
+        assert.equal(result.width, width);
+        assert.ok(result.scrollWidth <= width + 1, `overflow ${result.scrollWidth}`);
+        assert.equal(result.h1, 1, 'one main H1');
+        if (route === '/ar/library/aba-school-readiness-guide') { assert.equal(result.lang, 'ar'); assert.equal(result.dir, 'rtl'); }
+        if (selected.has(route) && (width === 320 || width === 1440)) { const file = `${route === '/' ? 'home' : route.slice(1).replaceAll('/', '-')}-${width}.png`; await page.screenshot({ path: path.join(output, file), fullPage: true }); evidence.screenshots.push({ route, width, file }); }
+      } catch (error) { evidence.failures.push({ route, width, error: String(error.message) }); }
+    }
+    await context.close();
+  }
+  evidence.status = evidence.failures.length || evidence.productionAttempts.length ? 'failed' : 'passed';
+} catch (error) { evidence.error = String(error.message); }
+finally {
+  await browser?.close();
+  if (preview && preview.exitCode === null) { preview.kill('SIGTERM'); await Promise.race([new Promise((resolve) => preview.once('exit', resolve)), delay(3000)]); if (preview.exitCode === null) preview.kill('SIGKILL'); }
+  evidence.finishedAt = new Date().toISOString(); await fs.writeFile(path.join(output, 'results.json'), JSON.stringify(evidence, null, 2) + '\n'); console.log(JSON.stringify({ ...evidence, output }, null, 2)); if (evidence.status !== 'passed') process.exitCode = 1;
+}