diff --git a/.woodpecker/hypertwist-bootstrap.yml b/.woodpecker/hypertwist-bootstrap.yml
index 6c8d2e7..55f5b26 100644
--- a/.woodpecker/hypertwist-bootstrap.yml
+++ b/.woodpecker/hypertwist-bootstrap.yml
@@ -57,3 +57,19 @@ steps:
       - npm test
     when:
       - event: [push, pull_request, manual, tag]
+
+  website_live_deploy:
+    image: powershell
+    depends_on:
+      - website_frontend_validation
+      - website_auth_validation
+    commands:
+      - Set-Location repo/website
+      - $identityFile = if ($env:HYPERTWIST_VPS_SSH_KEY_PATH) { $env:HYPERTWIST_VPS_SSH_KEY_PATH } else { 'C:\ScriptoriumAI\ops\ssh\scriptorium_vps_ed25519' }
+      - $manifestPath = if ($env:HYPERTWIST_SAME_ORIGIN_MANIFEST) { $env:HYPERTWIST_SAME_ORIGIN_MANIFEST } else { 'deploy/hypertwist.same-origin.preview.bundle.example.json' }
+      - if (-not (Test-Path -LiteralPath $identityFile)) { throw "HyperTwist live deploy SSH key not found at '$identityFile'. Set HYPERTWIST_VPS_SSH_KEY_PATH on the Woodpecker builder." }
+      - if (-not (Test-Path -LiteralPath $manifestPath)) { throw "HyperTwist same-origin manifest not found at '$manifestPath'. Set HYPERTWIST_SAME_ORIGIN_MANIFEST or commit the intended manifest." }
+      - npm run run:vps-same-origin-live-deploy -- --manifest $manifestPath --identity-file $identityFile --wait-seconds 60
+    when:
+      - event: push
+        branch: main
diff --git a/docs/ops/HYPERTWIST_WEBSITE_SAME_ORIGIN_DEPLOYMENT_HANDOFF_2026-06-22.md b/docs/ops/HYPERTWIST_WEBSITE_SAME_ORIGIN_DEPLOYMENT_HANDOFF_2026-06-22.md
index 116da87..e5b25a6 100644
--- a/docs/ops/HYPERTWIST_WEBSITE_SAME_ORIGIN_DEPLOYMENT_HANDOFF_2026-06-22.md
+++ b/docs/ops/HYPERTWIST_WEBSITE_SAME_ORIGIN_DEPLOYMENT_HANDOFF_2026-06-22.md
@@ -33,11 +33,16 @@ Current truthful interpretation:
 - the live public origin is still a preview deployment rather than full public
   launch because the current auth/launch JSON still reports missing Windows
   download, checkout, billing-map, and webhook-secret launch requirements
-- a plain repo push is not itself a production deploy; live website changes are
-  only published after
+- as of `2026-07-02`, `.woodpecker/hypertwist-bootstrap.yml` includes a
+  `website_live_deploy` step for `main` pushes that invokes
   `npm run run:vps-same-origin-live-deploy -- --manifest <file> --identity-file <key>`
-  or an equivalent CI job that invokes the same helper and revalidates the
-  public origin
+  after website frontend and auth-server validation
+- a repo push only counts as published after that helper-backed CI deploy, or a
+  manual invocation of the same helper, completes and revalidates the public
+  origin
+- login/register overlay safety is now part of the browser launch invariant:
+  the decorative auth backdrop may render, but the auth form must stay visibly
+  above it on the live public origin
 
 This is the next operator step after:
 
diff --git a/docs/v6_5_deep_manual_pack/HyperTwist/FEATURE_REGISTRY.md b/docs/v6_5_deep_manual_pack/HyperTwist/FEATURE_REGISTRY.md
index fdfba12..65651d3 100644
--- a/docs/v6_5_deep_manual_pack/HyperTwist/FEATURE_REGISTRY.md
+++ b/docs/v6_5_deep_manual_pack/HyperTwist/FEATURE_REGISTRY.md
@@ -430,6 +430,11 @@ When a new packet materially adds or changes a normalized feature:
     review path
   - live commerce/download/auth configuration plus physical headset/controller
     observation remain explicit launch gates
+- the same browser-account lane now treats auth-shell backdrop stacking as a
+  launch-readiness invariant rather than decoration-only CSS: `/login` and
+  `/register` must render their forms above the fixed decorative/auth backdrop,
+  and the website test suite now carries both source-level and browser-level
+  regression proof for that condition
 - this is a copy and layout coherence hardening pass, not a topology widening
   and not a promotion of the optional full-browser simulator branch
 
diff --git a/website/deploy/README.md b/website/deploy/README.md
index 589a2f2..5ca726e 100644
--- a/website/deploy/README.md
+++ b/website/deploy/README.md
@@ -46,9 +46,14 @@ Before using these templates:
   to stage the committed checkout, upload the rendered bundle, install env,
   build the site, replace the live `systemd` plus `nginx` files, and validate
   the public origin through the same readiness lane
-- a plain git push does **not** publish `https://hypertwist.app` by itself;
-  production changes are only live after this helper, or a CI job that invokes
-  the same helper, has completed and the public origin has been revalidated
+- as of `2026-07-02`, `.woodpecker/hypertwist-bootstrap.yml` includes a
+  `website_live_deploy` step for `main` pushes that invokes this same helper
+  after website frontend and auth-server validation, using
+  `HYPERTWIST_VPS_SSH_KEY_PATH` and `HYPERTWIST_SAME_ORIGIN_MANIFEST` when the
+  builder provides them
+- a git push only counts as published after that helper-backed CI deploy, or a
+  manual invocation of the same helper, has completed and the public origin has
+  been revalidated
 - set `publicOrigin` to the exact live origin that should own both the website
   and auth cookies; for the canonical production lane that value is
   `https://hypertwist.app`
diff --git a/website/src/__tests__/auth-shell-backdrop.test.ts b/website/src/__tests__/auth-shell-backdrop.test.ts
index 09e68c9..e2f7c96 100644
--- a/website/src/__tests__/auth-shell-backdrop.test.ts
+++ b/website/src/__tests__/auth-shell-backdrop.test.ts
@@ -1,3 +1,5 @@
+import fs from 'node:fs'
+import path from 'node:path'
 import { beforeEach, describe, expect, it } from 'vitest'
 import {
   AUTH_SHELL_BACKDROP_ID,
@@ -6,6 +8,12 @@ import {
   syncAuthShellBackdrop,
 } from '../auth/auth-shell-backdrop'
 
+function readAuthShellCssRule() {
+  const stylesPath = path.resolve(process.cwd(), 'src/styles/global.css')
+  const styles = fs.readFileSync(stylesPath, 'utf8')
+  return styles.match(/\.auth-shell\s*\{(?<rule>[^}]*)\}/m)?.groups?.rule || ''
+}
+
 describe('auth-shell-backdrop', () => {
   beforeEach(() => {
     document.body.innerHTML = '<div id="root"></div>'
@@ -31,6 +39,14 @@ describe('auth-shell-backdrop', () => {
     expect(backdrop.style.zIndex).toBe('0')
   })
 
+  it('keeps auth route content above the decorative backdrop layer', () => {
+    const authShellRule = readAuthShellCssRule()
+
+    expect(authShellRule).toContain('position: relative')
+    expect(authShellRule).toContain('z-index: 1')
+    expect(authShellRule).toContain('isolation: isolate')
+  })
+
   it('removes the auth backdrop when navigation leaves auth routes', () => {
     syncAuthShellBackdrop('/login')
     expect(document.getElementById(AUTH_SHELL_BACKDROP_ID)).not.toBeNull()
diff --git a/website/src/site-data.ts b/website/src/site-data.ts
index c808908..1268ea7 100644
--- a/website/src/site-data.ts
+++ b/website/src/site-data.ts
@@ -704,6 +704,7 @@ export const deploymentReadinessTracks = [
     title: '1. Identity and access posture',
     steps: [
       'Confirm shared browser auth is live before inviting operators into the protected release lane.',
+      'Treat login/register visibility above decorative auth backdrops as a launch-readiness invariant, not a cosmetic preference.',
       'Use the protected dashboard to resolve plan, entitlement, and desktop-link token posture.',
       'Keep browser-to-desktop handoff explicit so the installed app never depends on password reuse.',
     ],
@@ -1494,6 +1495,11 @@ export const releasePacketCards = [
 ] as const
 
 export const changelogEntries = [
+  {
+    date: 'July 2, 2026',
+    title: 'Browser login shell now has explicit overlay-safety proof before live deploy',
+    details: 'Login and registration keep the decorative auth backdrop, but the auth shell now owns a higher stacking layer so production users do not see an opaque overlay over the form. The responsive public-route suite now verifies the auth shell sits above the same-origin auth backdrop, and the main-branch CI path now follows validation with the same-origin live-deploy helper so pushed website fixes can reach hypertwist.app through the supported production chain.',
+  },
   {
     date: 'June 30, 2026',
     title: 'Downloadable operator manual now mirrors the richer public manual routes',
diff --git a/website/src/styles/global.css b/website/src/styles/global.css
index d2365bd..ba392a8 100644
--- a/website/src/styles/global.css
+++ b/website/src/styles/global.css
@@ -719,6 +719,9 @@ img {
 
 .auth-shell {
   min-height: 100vh;
+  position: relative;
+  z-index: 1;
+  isolation: isolate;
   display: grid;
   place-items: center;
   padding: 1.25rem;
diff --git a/website/tests/e2e/responsive-public-pages.spec.ts b/website/tests/e2e/responsive-public-pages.spec.ts
index 4f56be5..c64fcf3 100644
--- a/website/tests/e2e/responsive-public-pages.spec.ts
+++ b/website/tests/e2e/responsive-public-pages.spec.ts
@@ -11,7 +11,7 @@ type PublicRouteExpectation = {
 const responsivePublicRoutes: readonly PublicRouteExpectation[] = [
   {
     path: '/',
-    heading: 'HyperTwist turns cube practice into a real operator-grade training stack.',
+    heading: 'From first solves to 120-cell, HyperTwist keeps the real simulator in the downloadable.',
     cta: 'Download desktop app',
   },
   {
@@ -57,7 +57,7 @@ const responsivePublicRoutes: readonly PublicRouteExpectation[] = [
   },
   {
     path: '/changelog',
-    heading: 'Recent public-facing HyperTwist changes.',
+    heading: 'Release notes you can actually use for rollout.',
   },
   {
     path: '/open-source-notices',
@@ -95,9 +95,44 @@ async function assertResponsivePublicRoute(page: Page, route: PublicRouteExpecta
     }
   }
 
+  if (route.path === '/login' || route.path === '/register') {
+    await expectAuthShellAboveBackdrop(page)
+  }
+
   await expectNoHorizontalOverflow(page)
 }
 
+async function expectAuthShellAboveBackdrop(page: Page) {
+  await expect(page.locator('#hypertwist-auth-shell-backdrop')).toHaveCount(1)
+
+  const stacking = await page.evaluate(() => {
+    const backdrop = document.getElementById('hypertwist-auth-shell-backdrop')
+    const shell = document.querySelector('.auth-shell')
+    if (!(backdrop instanceof HTMLElement) || !(shell instanceof HTMLElement)) {
+      return null
+    }
+
+    const backdropStyle = window.getComputedStyle(backdrop)
+    const shellStyle = window.getComputedStyle(shell)
+
+    return {
+      backdropPointerEvents: backdropStyle.pointerEvents,
+      backdropZIndex: backdropStyle.zIndex,
+      shellIsolation: shellStyle.isolation,
+      shellPosition: shellStyle.position,
+      shellZIndex: shellStyle.zIndex,
+    }
+  })
+
+  expect(stacking).toEqual({
+    backdropPointerEvents: 'none',
+    backdropZIndex: '0',
+    shellIsolation: 'isolate',
+    shellPosition: 'relative',
+    shellZIndex: '1',
+  })
+}
+
 test.describe('responsive public routes (mobile)', () => {
   test.use({ viewport: { width: 390, height: 844 } })