diff --git a/frontend/src/index.css b/frontend/src/index.css
index fff906b..c621d28 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -229,28 +229,6 @@ tr:hover td { background: #f8fafc; }
 .stat-delta.negative { color: var(--danger); }
 .stat-delta.neutral  { color: var(--text-mid); }
 
-/* ─── Responsive ─────────────────────────────────────────────────────────── */
-@media (max-width: 900px) {
-  .app-shell { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
-  .sidebar { display: none; }
-  .top-bar {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    background: var(--navy);
-    padding: 0 16px;
-    height: 52px;
-    grid-column: 1;
-    grid-row: 1;
-    overflow-x: auto;
-  }
-  .top-bar-title { font-size: 14px; font-weight: 600; color: var(--text); white-space: nowrap; margin-right: 8px; }
-  .top-bar-nav { display: flex; gap: 4px; }
-  .top-bar-nav a { color: var(--text-muted); text-decoration: none; font-size: 12.5px; padding: 6px 10px; border-radius: 6px; white-space: nowrap; }
-  .top-bar-nav a:hover { color: var(--text); background: var(--surface); }
-  .top-bar-nav a.active { color: var(--gold); }
-  .page-content { grid-column: 1; grid-row: 2; padding: 16px; }
-}
 
 /* ─── Sidebar scrollbar ──────────────────────────────────────────────────── */
 .sidebar::-webkit-scrollbar,