diff --git a/docs/operations/public-docs-publication.md b/docs/operations/public-docs-publication.md
index 54012015..cb9b24d2 100644
--- a/docs/operations/public-docs-publication.md
+++ b/docs/operations/public-docs-publication.md
@@ -32,7 +32,11 @@ bash scripts/test-verify-dwh-auth-docs.sh
 
 The strict build also verifies the public boundary: exactly 20 navigation pages,
 five approved source assets, no internal pages/assets, and matching search entries.
-Theme-generated assets are separate from those five source assets.
+The locked Windmill theme requires a separate exact allowlist of 25 static assets;
+MkDocs applies `exclude_docs` to those files too. Never replace the list with broad
+directory exceptions. Sources under `docs/` may not shadow theme asset paths.
+The verifier follows stylesheet/script/image references and CSS font references
+from generated pages and fails when a local dependency is absent.
 
 Choose a unique release identifier consisting of UTC timestamp and source SHA.
 Record the current symlink and container identity before proceeding:
@@ -78,6 +82,10 @@ briefly interrupt this manual only.
   `install/standalone-manual-it/` and `install/standalone-manual-en/`.
 - Compare live home and `search/search_index.json` checksums to the build. Search
   must contain only the 20 approved pages, never plans, reports or architecture.
+- Check the actual stylesheet and JavaScript URLs in both installation pages:
+  HTTP 200, CSS served as `text/css`, JavaScript with a valid script content type,
+  and fonts available. In a browser confirm the stylesheets load and the layout is
+  styled. HTML 200 alone is not enough to accept a publication.
 - Require HTTP 404 for retired/internal paths, including `architecture/overview/`,
   `plans/2026-09-08-memory-management/`, and `operations/compose-reference/`.
 - Record source SHA, release ID, previous release and checks in the cleanup/release
diff --git a/mkdocs.yml b/mkdocs.yml
index a26cd32c..a7b1bf37 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -45,6 +45,8 @@ markdown_extensions:
 # Public manual: deny by default, including search and copied assets.
 # Internal developer documents remain in Git, not in the generated site.
 # Keep these exceptions aligned with nav; scripts/verify-public-docs.py checks it.
+# MkDocs applies these rules to bundled theme assets too. Keep exact exceptions
+# below in sync with THEME_ASSETS; never allow whole directories or docs overrides.
 exclude_docs: |
   *
   !/index.md
@@ -72,6 +74,31 @@ exclude_docs: |
   !/install/examples/thothii-installation.local.yaml
   !/install/examples/thothii-installation.server.yaml
   !/install/examples/workspace-bindings.env.example
+  !/css/base.css
+  !/css/bootstrap-3.3.7.css
+  !/css/bootstrap-3.3.7.min.css
+  !/css/font-awesome-4.7.0.css
+  !/css/font-awesome-4.7.0.min.css
+  !/css/highlight.css
+  !/fonts/fontawesome-webfont.eot
+  !/fonts/fontawesome-webfont.svg
+  !/fonts/fontawesome-webfont.ttf
+  !/fonts/fontawesome-webfont.woff
+  !/fonts/fontawesome-webfont.woff2
+  !/fonts/glyphicons-halflings-regular.eot
+  !/fonts/glyphicons-halflings-regular.svg
+  !/fonts/glyphicons-halflings-regular.ttf
+  !/fonts/glyphicons-halflings-regular.woff
+  !/fonts/glyphicons-halflings-regular.woff2
+  !/img/favicon.ico
+  !/js/base.js
+  !/js/bootstrap-3.3.7.js
+  !/js/bootstrap-3.3.7.min.js
+  !/js/elasticlunr.js
+  !/js/elasticlunr.min.js
+  !/js/highlight.pack.js
+  !/js/jquery-3.2.1.js
+  !/js/jquery-3.2.1.min.js
 nav:
 - Home: index.md
 - Understand ThothII:
diff --git a/scripts/test-verify-public-docs.py b/scripts/test-verify-public-docs.py
index 4abfb179..8e757efa 100644
--- a/scripts/test-verify-public-docs.py
+++ b/scripts/test-verify-public-docs.py
@@ -27,10 +27,18 @@ class PublicationBoundaryTest(unittest.TestCase):
             self.write(self.root / "docs" / source, "# Public")
             self.write(self.site / verifier.output_path(source), "public")
         self.write(self.root / "mkdocs.yml", self.config)
+        for asset in sorted(verifier.THEME_ASSETS):
+            self.config += f"  !/{asset}\n"
+            self.write(self.site / asset, "theme fixture")
+        self.write(self.root / "mkdocs.yml", self.config)
         self.search = {"docs": [{"location": "", "text": "public"}]}
         self.write_search()
         self.write(self.root / "docs/plans/private.md", "# Internal")
         self.write(self.root / "docs/reports/screenshot.png", "internal asset")
+        self.write(self.site / "index.html", '<link rel="stylesheet" href="css/base.css"><script src="js/base.js"></script>')
+        self.write(self.site / "css/base.css", '@font-face { src: url("../fonts/demo.woff2?v=1"); }')
+        self.write(self.site / "fonts/demo.woff2", "font fixture")
+        self.write(self.site / "js/base.js", "// script fixture")
 
     @staticmethod
     def write(path, content):
@@ -81,6 +89,39 @@ class PublicationBoundaryTest(unittest.TestCase):
         with self.assertRaisesRegex(ValueError, "missing generated public"):
             verifier.check(self.root, self.site)
 
+    def test_missing_theme_stylesheet(self):
+        (self.site / "css/base.css").unlink()
+        with self.assertRaisesRegex(ValueError, "missing generated page asset: css/base.css"):
+            verifier.check(self.root, self.site)
+
+    def test_docs_cannot_shadow_theme_assets(self):
+        self.write(self.root / "docs/css/base.css", "internal content")
+        with self.assertRaisesRegex(ValueError, "docs source shadows theme asset"):
+            verifier.check(self.root, self.site)
+
+    def test_missing_theme_script(self):
+        (self.site / "js/base.js").unlink()
+        with self.assertRaisesRegex(ValueError, "missing generated page asset: js/base.js"):
+            verifier.check(self.root, self.site)
+
+    def test_missing_css_font(self):
+        (self.site / "fonts/demo.woff2").unlink()
+        with self.assertRaisesRegex(ValueError, "missing generated page asset: fonts/demo.woff2"):
+            verifier.check(self.root, self.site)
+
+    def test_asset_outside_site_prefix(self):
+        self.write(self.root / "mkdocs.yml", self.config + "site_url: https://docs.example.invalid/manual/\n")
+        self.write(self.site / "index.html", '<link rel="stylesheet" href="/css/base.css">')
+        with self.assertRaisesRegex(ValueError, "asset escapes public site prefix"):
+            verifier.check(self.root, self.site)
+
+    def test_nested_installation_asset_resolution(self):
+        self.write(self.site / "install/manual/index.html", '<link rel="stylesheet" href="../../css/base.css">')
+        verifier.check_assets(self.site, ["install/manual.md"], "https://docs.example.invalid/manual/")
+        (self.site / "css/base.css").unlink()
+        with self.assertRaisesRegex(ValueError, "missing generated page asset: css/base.css"):
+            verifier.check_assets(self.site, ["install/manual.md"], "https://docs.example.invalid/manual/")
+
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/scripts/verify-public-docs.py b/scripts/verify-public-docs.py
index b2fab69f..37b183cc 100644
--- a/scripts/verify-public-docs.py
+++ b/scripts/verify-public-docs.py
@@ -3,8 +3,10 @@
 
 import argparse
 import json
+import re
+from html.parser import HTMLParser
 from pathlib import Path
-from urllib.parse import unquote, urlsplit
+from urllib.parse import unquote, urljoin, urlsplit
 
 import yaml
 
@@ -16,6 +18,35 @@ PUBLIC_ASSETS = {
     "install/examples/thothii-installation.server.yaml",
     "install/examples/workspace-bindings.env.example",
 }
+# Exact static assets shipped by the locked Windmill theme. Sources in docs/ must
+# not shadow these paths, or an internal file could bypass the public allowlist.
+THEME_ASSETS = {
+    "css/base.css",
+    "css/bootstrap-3.3.7.css",
+    "css/bootstrap-3.3.7.min.css",
+    "css/font-awesome-4.7.0.css",
+    "css/font-awesome-4.7.0.min.css",
+    "css/highlight.css",
+    "fonts/fontawesome-webfont.eot",
+    "fonts/fontawesome-webfont.svg",
+    "fonts/fontawesome-webfont.ttf",
+    "fonts/fontawesome-webfont.woff",
+    "fonts/fontawesome-webfont.woff2",
+    "fonts/glyphicons-halflings-regular.eot",
+    "fonts/glyphicons-halflings-regular.svg",
+    "fonts/glyphicons-halflings-regular.ttf",
+    "fonts/glyphicons-halflings-regular.woff",
+    "fonts/glyphicons-halflings-regular.woff2",
+    "img/favicon.ico",
+    "js/base.js",
+    "js/bootstrap-3.3.7.js",
+    "js/bootstrap-3.3.7.min.js",
+    "js/elasticlunr.js",
+    "js/elasticlunr.min.js",
+    "js/highlight.pack.js",
+    "js/jquery-3.2.1.js",
+    "js/jquery-3.2.1.min.js",
+}
 INTERNAL_DIRS = {
     "adr", "agents", "architecture", "contracts", "maintenance", "plans",
     "reports", "research", "testing",
@@ -46,6 +77,57 @@ def output_path(source):
     return path.with_suffix("") / "index.html" if path.name != "index.md" else path.with_suffix(".html")
 
 
+class AssetLinks(HTMLParser):
+    def __init__(self):
+        super().__init__()
+        self.urls = []
+
+    def handle_starttag(self, tag, attrs):
+        attrs = dict(attrs)
+        if tag == "link" and "stylesheet" in attrs.get("rel", "").split():
+            self.urls.append(attrs.get("href", ""))
+        elif tag in ("script", "img") and attrs.get("src"):
+            self.urls.append(attrs["src"])
+
+
+def check_assets(site, pages, site_url):
+    """Follow page assets and CSS font/image references using browser URL rules."""
+    base = site_url.rstrip("/") + "/"
+    origin = urlsplit(base)
+    visited = set()
+
+    def visit(reference, parent):
+        if not reference or reference.startswith("#"):
+            return
+        url = urlsplit(urljoin(parent, reference))
+        if url.scheme not in ("http", "https") or url.netloc != origin.netloc:
+            return
+        path = unquote(url.path)
+        if not path.startswith(origin.path):
+            raise ValueError(f"asset escapes public site prefix: {reference}")
+        relative = path[len(origin.path):]
+        asset = (site / relative).resolve()
+        if site.resolve() not in asset.parents or not asset.is_file():
+            raise ValueError(f"missing generated page asset: {relative}")
+        if relative in visited:
+            return
+        visited.add(relative)
+        if asset.suffix == ".css":
+            css = asset.read_text()
+            refs = re.findall(r"url\(\s*['\"]?([^)'\"\s]+)", css)
+            refs += re.findall(r"@import\s+['\"]([^'\"]+)", css)
+            for child in refs:
+                visit(child, url.geturl())
+
+    for page in pages:
+        output = output_path(page)
+        parser = AssetLinks()
+        parser.feed((site / output).read_text())
+        page_url = urljoin(base, output.as_posix())
+        for reference in parser.urls:
+            visit(reference, page_url)
+
+
 def check(root, site):
     # BaseLoader reads configuration without executing custom Python YAML tags.
     config = yaml.load((root / "mkdocs.yml").read_text(), Loader=yaml.BaseLoader)
@@ -66,10 +148,14 @@ def check(root, site):
     if not rules or rules[0] != "*" or any(not r.startswith("!/") for r in rules[1:]):
         raise ValueError("public docs must use deny-by-default exclusions and explicit exceptions")
     published = [r[2:] for r in rules[1:]]
-    if len(published) != len(set(published)) or set(published) != set(pages) | PUBLIC_ASSETS:
+    if len(published) != len(set(published)) or set(published) != set(pages) | PUBLIC_ASSETS | THEME_ASSETS:
         raise ValueError("publication exceptions must match nav pages and approved assets exactly")
 
     for source in published:
+        if source in THEME_ASSETS:
+            if (root / "docs" / source).exists():
+                raise ValueError(f"docs source shadows theme asset: {source}")
+            continue
         if not (root / "docs" / source).is_file():
             raise ValueError(f"missing public source: {source}")
         if not (site / output_path(source)).is_file():
@@ -94,6 +180,10 @@ def check(root, site):
         indexed.add(location)
     if indexed != expected_urls:
         raise ValueError("search index does not cover exactly the public pages")
+    check_assets(site, pages, config.get("site_url", "https://docs.example.invalid/"))
+    for asset in sorted(THEME_ASSETS):
+        if not (site / asset).is_file():
+            raise ValueError(f"missing generated theme asset: {asset}")
     return len(pages)