diff --git a/frontend/src/pages/Asistente.tsx b/frontend/src/pages/Asistente.tsx
index 1bebb47..29b6c22 100644
--- a/frontend/src/pages/Asistente.tsx
+++ b/frontend/src/pages/Asistente.tsx
@@ -54,7 +54,9 @@ export default function Asistente() {
   });
 
   return (
-    <div className="flex flex-col h-[calc(100vh-105px)]">
+    // Fills the viewport via Layout's flex chain (SidebarInset > main >
+    // max-w wrapper are all min-h-0 flex columns) — no vh math.
+    <div className="flex flex-1 min-h-0 flex-col">
       <div className="mb-4">
         <h1 className="text-2xl font-bold tracking-tight flex items-center gap-2" style={{ fontFamily: "var(--font-heading)" }}>
           <Sparkles className="w-5 h-5 text-primary" />