diff --git a/web-ui/css/modern-dashboard.css b/web-ui/css/modern-dashboard.css
index 90a32ee..1447fe3 100644
--- a/web-ui/css/modern-dashboard.css
+++ b/web-ui/css/modern-dashboard.css
@@ -187,8 +187,8 @@
 /* ========== 메인 콘텐츠 ========== */
 .dashboard-main {
   flex: 1;
-  padding: var(--space-8) var(--space-6);
-  max-width: 1400px;
+  padding: var(--space-8) var(--space-4);
+  max-width: 1600px;
   margin: 0 auto;
   width: 100%;
 }
@@ -398,7 +398,9 @@
 .quick-actions-grid-full {
   display: grid;
   grid-template-columns: repeat(4, 1fr);
-  gap: var(--space-4);
+  gap: var(--space-6);
+  max-width: none;
+  width: 100%;
 }
 
 .quick-actions-grid {