diff --git a/AGENTS.md b/AGENTS.md
index aa30027..11e20d9 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -3,12 +3,12 @@
 ## Scope
 
 - This repository is a static overlay copied into Gitea's custom path; it has no local build, lint, or automated test toolchain.
-- Target Gitea 1.27.x. Treat upstream theme variables and template structure as version-coupled behavior.
+- Target Gitea 1.27.x; the current files are synchronized with Gitea 1.27.3. Treat upstream theme variables and template structure as version-coupled behavior.
 
 ## Themes
 
-- `theme-codecraftsmen-light.css` and `theme-codecraftsmen-dark.css` intentionally import Gitea-provided `theme-gitea-*.css` files that are absent from this repository.
-- Keep custom themes as overrides of upstream themes so newly added Gitea defaults continue to apply.
+- `theme-codecraftsmen-light.css` and `theme-codecraftsmen-dark.css` are self-contained copies of the Gitea 1.27 theme variable sets with CodeCraftsmen overrides.
+- Keep their variable names synchronized with the built-in themes from the exact target release. Production Gitea theme assets are hashed, so custom themes must not import built-in theme filenames directly.
 - `theme-codecraftsmen-auto.css` selects the custom light and dark themes with `prefers-color-scheme`; verify changes in all three theme modes.
 - Keep font and image URLs relative to `public/assets/css/` (`../fonts/...` and `../img/...`) because Gitea serves these files below `/assets/`.
 - Preserve `gitea-theme-meta-info`, including both display name and color scheme, so Gitea can discover each theme correctly.
diff --git a/README.md b/README.md
index 9ea1773..a381f79 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,11 @@ Custom themes and branding for the CodeCraftsmen Gitea instance.
 
 ## Compatibility
 
-The theme supports Gitea 1.27.x. Each custom theme imports the matching built-in
-Gitea theme and overrides only the CodeCraftsmen palette, typography, and logo.
-This allows new upstream theme variables to retain their Gitea defaults.
+The theme supports Gitea 1.27.x and is currently synchronized with Gitea 1.27.3.
+The light and dark themes are self-contained copies of the matching built-in
+theme variable sets with CodeCraftsmen palette and typography overrides. The
+auto theme conditionally imports those two local theme files according to the
+user's preferred color scheme.
 
 The repository intentionally avoids overriding Gitea's internal templates. The
 navbar logo is replaced through theme CSS so Gitea template changes are applied
@@ -29,11 +31,12 @@ repository being available from the Gitea instance.
 
 ## Upgrade Process
 
-1. Update the imported Gitea version locally.
-2. Compare the custom palette with the built-in light and dark themes for that
-   exact release.
-3. Test anonymous, authenticated, and administrator pages with light, dark, and
-   auto themes.
+1. Compare the custom light and dark variable sets with the built-in themes from
+   the exact target release.
+2. Add, remove, or rename variables to match that release while preserving the
+   CodeCraftsmen palette values.
+3. Test anonymous, authenticated, and administrator pages with all six themes,
+   including both system color schemes for the two auto themes.
 4. Synchronize the reviewed files into the homelab Gitea role.
 
 ## Assets
diff --git a/public/assets/css/branding.css b/public/assets/css/branding.css
index 0027cb6..7004631 100644
--- a/public/assets/css/branding.css
+++ b/public/assets/css/branding.css
@@ -39,7 +39,16 @@ html:is(
     )
     .page-content.home
     img.logo {
-    display: none;
+    position: absolute;
+    width: 1px;
+    height: 1px;
+    padding: 0;
+    margin: -1px;
+    overflow: hidden;
+    clip: rect(0, 0, 0, 0);
+    clip-path: inset(50%);
+    white-space: nowrap;
+    border: 0;
 }
 
 html:is(
diff --git a/public/assets/css/theme-codecraftsmen-dark.css b/public/assets/css/theme-codecraftsmen-dark.css
index a221870..6197574 100644
--- a/public/assets/css/theme-codecraftsmen-dark.css
+++ b/public/assets/css/theme-codecraftsmen-dark.css
@@ -13,7 +13,7 @@ gitea-theme-meta-info {
 @font-face {
     font-family: "alro";
     src: url("../fonts/alro-bold-700.woff2") format("woff2");
-    font-weight: 400;
+    font-weight: 700;
     font-style: normal;
     font-display: swap;
 }
@@ -392,6 +392,7 @@ h6,
 .page-title,
 .repository .ui.header {
     font-family: var(--cc-font-heading);
+    font-weight: 700;
     letter-spacing: 0.02em;
 }
 
diff --git a/public/assets/css/theme-codecraftsmen-light.css b/public/assets/css/theme-codecraftsmen-light.css
index f9b3d33..a12959b 100644
--- a/public/assets/css/theme-codecraftsmen-light.css
+++ b/public/assets/css/theme-codecraftsmen-light.css
@@ -13,7 +13,7 @@ gitea-theme-meta-info {
 @font-face {
     font-family: "alro";
     src: url("../fonts/alro-bold-700.woff2") format("woff2");
-    font-weight: 400;
+    font-weight: 700;
     font-style: normal;
     font-display: swap;
 }
@@ -366,6 +366,7 @@ h6,
 .page-title,
 .repository .ui.header {
     font-family: var(--cc-font-heading);
+    font-weight: 700;
     letter-spacing: 0.02em;
 }