diff --git a/frontend/current_screen.png b/frontend/current_screen.png
index 1d1e64c2..85448f77 100644
Binary files a/frontend/current_screen.png and b/frontend/current_screen.png differ
diff --git a/frontend/src/design-system/tokens.css b/frontend/src/design-system/tokens.css
index d7d31820..d1acf525 100644
--- a/frontend/src/design-system/tokens.css
+++ b/frontend/src/design-system/tokens.css
@@ -191,12 +191,28 @@
   --ag-font-size: var(--ks-font-grid) !important;
   --ag-font-family: Inter, Pretendard, system-ui, -apple-system, sans-serif !important;
   --ag-border-color: var(--ks-color-border) !important;
-  --ag-header-background-color: var(--ks-color-canvas) !important;
+  --ag-header-background-color: #f1f5f9 !important;
+  --ag-header-foreground-color: var(--ks-color-neutral-800) !important;
   --ag-row-hover-color: var(--ks-color-neutral-100) !important;
   --ag-selected-row-background-color: rgba(59, 130, 246, 0.1) !important;
   font-size: var(--ks-font-grid) !important;
 }
 
+.ag-header, .ag-header-row, .ag-header-cell {
+  background-color: #f1f5f9 !important; /* KBX Standard Premium Header Gray (#f1f5f9) */
+  color: var(--ks-color-neutral-800) !important;
+  font-weight: 700 !important;
+  font-size: var(--ks-font-grid) !important;
+}
+
+.ag-header-cell {
+  border-right: 1px solid var(--ks-color-neutral-200) !important;
+}
+
+.ag-header {
+  border-bottom: 1px solid var(--ks-color-neutral-300) !important;
+}
+
 /* Raw Table Standard Grid Class for legacy fallback tables */
 .grid-table, .kbx-grid-table, .models-table, .shadow-runs-table {
   width: 100%;