diff --git a/frontend/src/components/CriterionInput.jsx b/frontend/src/components/CriterionInput.jsx
index 55b1ce7..3b5b667 100644
--- a/frontend/src/components/CriterionInput.jsx
+++ b/frontend/src/components/CriterionInput.jsx
@@ -1,11 +1,11 @@
 export default function CriterionInput({ criterionName, setCriterionName, error }) {
   return (
-    <div className="flex flex-row items-center justify-center gap-3 w-full z-30 relative mt-4">
-      <label className="text-sm font-bold text-slate-600 uppercase tracking-wide whitespace-nowrap">
+    <div className="flex flex-col sm:flex-row items-stretch sm:items-center justify-center gap-2 sm:gap-3 w-full max-w-full z-30 relative mt-4 px-1">
+      <label className="text-sm font-bold text-slate-600 uppercase tracking-wide text-center sm:text-left sm:whitespace-nowrap shrink-0">
         Nombre del Criterio:
       </label>
       
-      <div className="relative w-72">
+      <div className="relative w-full max-w-xs sm:max-w-none sm:w-72 mx-auto sm:mx-0">
         <input
           type="text"
           placeholder="Ej: Calidad del código"
@@ -19,7 +19,7 @@ export default function CriterionInput({ criterionName, setCriterionName, error
         />
         
         {error && (
-          <span className="absolute top-1/2 -right-18 -translate-y-1/2 text-red-500 text-xs font-semibold">
+          <span className="mt-1 block text-center sm:absolute sm:mt-0 sm:top-1/2 sm:-right-20 sm:-translate-y-1/2 text-red-500 text-xs font-semibold whitespace-nowrap">
             Obligatorio
           </span>
         )}
diff --git a/frontend/src/components/editor/Step1BaseScale.jsx b/frontend/src/components/editor/Step1BaseScale.jsx
index 519b634..69f1456 100644
--- a/frontend/src/components/editor/Step1BaseScale.jsx
+++ b/frontend/src/components/editor/Step1BaseScale.jsx
@@ -14,14 +14,15 @@ export default function Step1BaseScale({
   const [isZoomActive, setIsZoomActive] = useState(true);
   const containerRef = useRef(null);
   const tableRef = useRef(null);
-  const [dimensions, setDimensions] = useState({ container: 1000, table: 0 });
+  const [dimensions, setDimensions] = useState({ container: 1000, table: 0, tableHeight: 0 });
 
   useEffect(() => {
     const updateMeasurements = () => {
       if (containerRef.current && tableRef.current) {
         setDimensions({
           container: containerRef.current.offsetWidth,
-          table: tableRef.current.scrollWidth
+          table: tableRef.current.scrollWidth,
+          tableHeight: tableRef.current.offsetHeight,
         });
       }
     };
@@ -37,8 +38,13 @@ export default function Step1BaseScale({
   const dynamicScale = needsZoom ? (dimensions.container / dimensions.table) * 0.95 : 1;
   const currentScale = isZoomActive && needsZoom ? dynamicScale : 1;
 
+  const isScaledLayout = isZoomActive && needsZoom && currentScale < 1 && dimensions.tableHeight > 0;
+  const scaledViewportHeight = isScaledLayout
+    ? dimensions.tableHeight * currentScale + 12
+    : undefined;
+
   return (
-    <div className="w-full bg-white p-6 rounded-2xl shadow-sm border border-slate-200 flex flex-col items-center animate-fade-in relative overflow-visible">
+    <div className="w-full bg-white p-6 rounded-2xl shadow-sm border border-slate-200 flex flex-col items-center animate-fade-in relative overflow-x-clip">
         
         <div className="flex justify-between items-center w-full mb-4 border-b pb-3 relative z-30">
             <h2 className="text-xl font-bold text-slate-800">
@@ -60,10 +66,16 @@ export default function Step1BaseScale({
 
         <CriterionInput criterionName={criterionName} setCriterionName={handleCriterionChange} error={errors.criterion} />
         
-        <div ref={containerRef} className={`w-full mt-2 transition-all relative ${!isZoomActive && needsZoom ? 'overflow-x-auto flex justify-start pt-4 px-4 custom-scrollbar' : 'overflow-visible flex justify-center pt-4'}`}>
-            <div className={`flex flex-row items-start min-w-max transition-transform duration-500 ease-out px-4 origin-top`} style={{ transform: `scale(${currentScale})`, marginBottom: isZoomActive && currentScale < 1 ? `-${(1 - currentScale) * 300}px` : '0px' }}>
-            
-                <div ref={tableRef} className="flex flex-row items-start relative px-10 overflow-visible">
+        <div ref={containerRef} className={`w-full mt-2 transition-all relative ${!isZoomActive && needsZoom ? 'overflow-x-auto flex justify-start pt-4 px-4 pb-4 custom-scrollbar' : 'overflow-x-clip flex justify-center pt-4'}`}>
+            <div
+              className="flex w-full justify-center transition-[height] duration-500 ease-out"
+              style={isScaledLayout ? { height: scaledViewportHeight } : undefined}
+            >
+              <div
+                className="flex flex-row items-start min-w-max px-4 origin-top transition-transform duration-500 ease-out"
+                style={{ transform: `scale(${currentScale})` }}
+              >
+                <div ref={tableRef} className="flex flex-row items-start relative px-10 overflow-x-clip">
                     {levels.map((level, index) => (
                     <React.Fragment key={index}>
                         
@@ -96,7 +108,7 @@ export default function Step1BaseScale({
                     </div>
 
                 </div>
-
+              </div>
             </div>
         </div>
         
diff --git a/frontend/src/components/layout/Footer.jsx b/frontend/src/components/layout/Footer.jsx
index b272700..d400f74 100644
--- a/frontend/src/components/layout/Footer.jsx
+++ b/frontend/src/components/layout/Footer.jsx
@@ -2,86 +2,89 @@ export default function Footer() {
   return (
     <footer className="bg-white border-t border-slate-200 mt-auto shrink-0 w-full pt-8 pb-8">
       <div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
-        
+
         <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-12 gap-8 lg:gap-6">
-          
+
           {/* Proyecto */}
-          <div className="lg:col-span-4 flex flex-col">
-            <div className="flex items-center gap-3 mb-3">
+          <div className="lg:col-span-4 flex flex-col items-center text-center sm:items-start sm:text-left">
+            <div className="flex flex-wrap items-center justify-center gap-3 mb-3 sm:justify-start">
               <span className="text-xl font-black text-slate-800 tracking-tight">Deck of Cards</span>
               <span className="px-2 py-1 bg-blue-50 text-blue-700 text-[10px] font-black uppercase tracking-widest rounded-md">
                 Software Científico
               </span>
             </div>
             <p className="text-sm text-slate-500 leading-relaxed max-w-sm">
-              Plataforma web para la elicitación de escalas de valor y construcción de conjuntos difusos interpretables (DoC-MF).
+              Elicitación de escalas de valor y construcción de conjuntos difusos interpretables (DoC-MF).
             </p>
           </div>
 
           {/* Desarrollo */}
-          <div className="lg:col-span-3 flex flex-col">
+          <div className="lg:col-span-3 flex flex-col items-center text-center sm:items-start sm:text-left">
             <h4 className="text-[10px] font-black uppercase tracking-[0.2em] text-slate-400 mb-3">Ingeniería y Desarrollo</h4>
             <ul className="text-sm font-bold text-slate-700 space-y-2">
-              <li className="flex flex-wrap items-center gap-2">
-                Alexis López Moral 
+              <li className="flex flex-wrap items-center justify-center gap-2 sm:justify-start">
+                Alexis López Moral
                 <span className="text-slate-400 font-medium text-[10px] font-mono bg-slate-50 border border-slate-100 px-1.5 py-0.5 rounded">Frontend</span>
               </li>
-              <li className="flex flex-wrap items-center gap-2">
-                Mireya Cueto Garrido 
+              <li className="flex flex-wrap items-center justify-center gap-2 sm:justify-start">
+                Mireya Cueto Garrido
                 <span className="text-slate-400 font-medium text-[10px] font-mono bg-slate-50 border border-slate-100 px-1.5 py-0.5 rounded">Backend</span>
               </li>
             </ul>
           </div>
 
           {/* Dirección Científica */}
-          <div className="lg:col-span-2 flex flex-col">
+          <div className="lg:col-span-2 flex flex-col items-center text-center sm:items-start sm:text-left">
             <h4 className="text-[10px] font-black uppercase tracking-[0.2em] text-slate-400 mb-3">Dirección Científica</h4>
             <p className="text-sm font-bold text-slate-700">Luis Martínez López</p>
           </div>
 
           {/* Enlaces Institucionales y Código */}
-          <div className="lg:col-span-3 flex flex-col gap-5 sm:items-start lg:items-end">
-            
-            {/* Universidad de Jaén */}
-            <a 
-              href="https://www.ujaen.es/" 
-              target="_blank" rel="noopener noreferrer"
-              className="group flex items-center gap-3 w-fit"
-              title="Ir a la web oficial de la Universidad de Jaén"
-            >
-              <div className="text-right border-r-2 border-slate-300 group-hover:border-blue-600 pr-3 flex flex-col justify-center h-9 transition-colors">
-                <span className="text-xs font-black text-slate-800 uppercase tracking-widest leading-none mb-1">Universidad</span>
-                <span className="text-[10px] font-bold text-slate-500 uppercase tracking-[0.3em] leading-none">de Jaén</span>
-              </div>
-              <img 
-                src="/uja-logo.png" 
-                alt="Logo UJA" 
-                className="w-9 h-9 object-contain grayscale group-hover:grayscale-0 transition-all opacity-80 group-hover:opacity-100" 
-              />
-            </a>
+          <div className="lg:col-span-3 flex flex-col items-center w-full sm:items-start lg:items-end">
 
-            {/* Repositorio GitHub */}
-            <a 
-              href="https://github.com/alexislopez-dev/deck-of-cards"
-              target="_blank" rel="noopener noreferrer"
-              className="group flex items-center gap-3 w-fit"
-              title="Ver código fuente en GitHub"
-            >
-              <div className="text-right border-r-2 border-slate-300 group-hover:border-slate-800 pr-3 flex flex-col justify-center h-9 transition-colors">
-                <span className="text-xs font-black text-slate-800 uppercase tracking-widest leading-none mb-1">Repositorio</span>
-                <span className="text-[10px] font-bold text-slate-500 uppercase tracking-[0.3em] leading-none">Oficial</span>
-              </div>
-              <svg className="w-9 h-9 text-slate-400 group-hover:text-slate-800 transition-colors" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true">
-                <path fillRule="evenodd" d="M12 2C6.477 2 2 6.484 2 12.017c0 4.425 2.865 8.18 6.839 9.504.5.092.682-.217.682-.483 0-.237-.008-.868-.013-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.029-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.202 2.398.1 2.651.64.7 1.028 1.595 1.028 2.688 0 3.848-2.339 4.695-4.566 4.943.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.019 10.019 0 0022 12.017C22 6.484 17.522 2 12 2z" clipRule="evenodd" />
-              </svg>
-            </a>
+            <div className="grid grid-cols-2 gap-2.5 sm:gap-3 w-full max-w-sm sm:max-w-none lg:flex lg:flex-col lg:w-auto lg:gap-5">
 
+              {/* Universidad de Jaén */}
+              <a
+                href="https://www.ujaen.es/"
+                target="_blank" rel="noopener noreferrer"
+                className="group flex items-center justify-center gap-2.5 rounded-lg border border-slate-200 bg-slate-50/50 px-3 py-2 transition-colors hover:bg-slate-100"
+                title="Ir a la web oficial de la Universidad de Jaén"
+              >
+                <div className="flex h-8 flex-col justify-center border-r-2 border-slate-300 pr-2.5 text-right transition-colors group-hover:border-blue-600">
+                  <span className="mb-0.5 text-[11px] font-bold uppercase leading-none tracking-wide text-slate-800">Universidad</span>
+                  <span className="text-[10px] font-medium uppercase leading-none tracking-[0.22em] text-slate-500">de Jaén</span>
+                </div>
+                <img
+                  src={`${import.meta.env.BASE_URL}uja-logo.png`}
+                  alt="Logo UJA"
+                  className="h-7 w-7 object-contain grayscale opacity-80 transition-all group-hover:grayscale-0 group-hover:opacity-100"
+                />
+              </a>
+
+              {/* Repositorio GitHub */}
+              <a
+                href="https://github.com/alexislopez-dev/deck-of-cards"
+                target="_blank" rel="noopener noreferrer"
+                className="group flex items-center justify-center gap-2.5 rounded-lg border border-slate-200 bg-slate-50/50 px-3 py-2 transition-colors hover:bg-slate-100"
+                title="Ver código fuente en GitHub"
+              >
+                <div className="flex h-8 flex-col justify-center border-r-2 border-slate-300 pr-2.5 text-right transition-colors group-hover:border-slate-800">
+                  <span className="mb-0.5 text-[11px] font-bold uppercase leading-none tracking-wide text-slate-800">Repositorio</span>
+                  <span className="text-[10px] font-medium uppercase leading-none tracking-[0.22em] text-slate-500">Oficial</span>
+                </div>
+                <svg className="h-7 w-7 text-slate-400 transition-colors group-hover:text-slate-800" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true">
+                  <path fillRule="evenodd" d="M12 2C6.477 2 2 6.484 2 12.017c0 4.425 2.865 8.18 6.839 9.504.5.092.682-.217.682-.483 0-.237-.008-.868-.013-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.029-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.202 2.398.1 2.651.64.7 1.028 1.595 1.028 2.688 0 3.848-2.339 4.695-4.566 4.943.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.019 10.019 0 0022 12.017C22 6.484 17.522 2 12 2z" clipRule="evenodd" />
+                </svg>
+              </a>
+
+            </div>
           </div>
         </div>
 
         {/* Sub-Footer: Copyright y Referencia Científica */}
         <div className="mt-6 pt-6 border-t border-slate-100 flex flex-col md:flex-row justify-between items-center gap-4">
-          <p className="text-[10px] font-bold text-slate-400 uppercase tracking-widest whitespace-nowrap">
+          <p className="text-[10px] font-bold text-slate-400 uppercase tracking-widest text-center">
             © {new Date().getFullYear()} Deck of Cards App.
           </p>
           <p className="text-[10px] font-medium text-slate-400 text-center md:text-right">
@@ -92,4 +95,4 @@ export default function Footer() {
       </div>
     </footer>
   );
-}
\ No newline at end of file
+}
diff --git a/frontend/src/components/layout/MainLayout.jsx b/frontend/src/components/layout/MainLayout.jsx
index b6d6da7..03e9cba 100644
--- a/frontend/src/components/layout/MainLayout.jsx
+++ b/frontend/src/components/layout/MainLayout.jsx
@@ -3,7 +3,7 @@ import Footer from './Footer';
 
 export default function MainLayout({ children }) {
   return (
-    <div className="min-h-screen flex flex-col bg-slate-50 font-sans">
+    <div className="min-h-screen flex flex-col overflow-x-clip bg-slate-50 font-sans">
       
       <Header />
 
diff --git a/frontend/src/index.css b/frontend/src/index.css
index 86ca1af..53e88f4 100644
--- a/frontend/src/index.css
+++ b/frontend/src/index.css
@@ -3,6 +3,11 @@
 /* Solo escanear código fuente; evita que Tailwind/Vite procesen Dockerfile u otros archivos en /app */
 @source "./src/**/*.{js,jsx}";
 
+html {
+  overflow-x: clip;
+}
+
 body {
+  overflow-x: clip;
   overflow-y: scroll;
 }
\ No newline at end of file