diff --git a/containers/marketplace/resources/site/index.html b/containers/marketplace/resources/site/index.html
index 57c3046..7efbf69 100644
--- a/containers/marketplace/resources/site/index.html
+++ b/containers/marketplace/resources/site/index.html
@@ -12,6 +12,7 @@
   :root {
     --gradient-from: #1a1442; --gradient-mid: #1b2a5e; --gradient-to: #0f3b6e;
     --surface-elevated: rgba(255,255,255,0.07);
+    --surface-hover: rgba(255,255,255,0.10);
     --border: rgba(255,255,255,0.16); --border-color: rgba(255,255,255,0.16);
     --border-subtle: rgba(255,255,255,0.08);
     --text-primary: #ffffff; --text-secondary: rgba(255,255,255,0.82); --text-muted: rgba(255,255,255,0.65);
@@ -24,7 +25,11 @@
     --card-shadow: 0 4px 18px rgba(0,0,0,0.30), inset 0 1px 0 rgba(255,255,255,0.06);
     --card-shadow-hover: 0 10px 32px rgba(0,212,255,0.18), 0 4px 18px rgba(0,0,0,0.40), inset 0 1px 0 rgba(255,255,255,0.10);
     --input-bg: rgba(255,255,255,0.06); --input-border: rgba(255,255,255,0.18);
-    --sidebar-bg: rgba(0,0,0,0.18);
+    /* Sidebar tokens — the exact nebula values (were missing/wrong, so the
+       category hover background + row separators resolved to nothing). */
+    --sidebar-bg: rgba(15,25,50,0.30);
+    --sidebar-border: rgba(255,255,255,0.10);
+    --sidebar-text: #ffffff;
   }
   * { box-sizing: border-box; margin: 0; }
   html {