fix: arreglar tamaños y márgenes generales de la app

frontend/src/components/layout/MainLayout.jsx

@@ -3,6 +3,7 @@ import { Outlet } from 'react-router-dom';
 export default function MainLayout() {
   return (
     <div className="min-h-screen bg-slate-50 font-sans text-slate-900">
+      
       {/* Cabecera */}
       <header className="bg-white border-b border-slate-200 sticky top-0 z-50 shadow-sm">
         <div className="max-w-7xl mx-auto px-4 h-14 flex items-center gap-3">
@@ -19,6 +20,7 @@ export default function MainLayout() {
       <main className="max-w-7xl mx-auto px-4 py-6">
         <Outlet />
       </main>
+      
     </div>
   );
 }

frontend/src/index.css

@@ -1 +1,5 @@
 @import "tailwindcss";
+
+body {
+  overflow-y: scroll;
+}

frontend/src/pages/AdvancedMode.jsx

@@ -151,7 +151,7 @@ export default function AdvancedMode() {
 
           <CriterionInput criterionName={criterionName} setCriterionName={handleCriterionChange} error={errors.criterion} />
           
-          <div ref={containerRef} className={`w-full mt-2 pb-4 pt-4 transition-all relative ${!isZoomActive && needsZoom ? 'overflow-x-auto flex justify-start px-4' : 'overflow-hidden flex justify-center'}`}>
+          <div ref={containerRef} className={`w-full mt-2 transition-all relative ${!isZoomActive && needsZoom ? 'overflow-x-auto flex justify-start pb-8 pt-4 px-4' : 'overflow-hidden flex justify-center pb-8 pt-4'}`}>
             <div className={`flex flex-row items-start min-w-max transition-transform duration-500 ease-out px-4 origin-top`} style={{ transform: `scale(${currentScale})`, marginBottom: isZoomActive && currentScale < 1 ? `-${(1 - currentScale) * 300}px` : '0px' }}>
               
               <div ref={tableRef} className="flex flex-row items-start relative px-10 overflow-visible">
@@ -187,7 +187,7 @@ export default function AdvancedMode() {
 
       {/* PASO 2 */}
       {step === 2 && (
-        <div className="w-full max-w-6xl bg-white p-6 rounded-2xl shadow-sm border border-slate-200 animate-fade-in relative overflow-visible">
+        <div className="w-full bg-white p-6 rounded-2xl shadow-sm border border-slate-200 animate-fade-in relative overflow-visible">
           <div className="flex justify-between items-center mb-6 border-b pb-3">
             <h2 className="text-xl font-bold text-slate-800">Paso 2: Modelar Conceptos Difusos</h2>
             <button onClick={() => setStep(1)} className="text-slate-500 hover:text-blue-600 text-sm font-semibold underline">← Volver a las cartas</button>