diff --git a/frontend/src/components/BlankCardsCounter.jsx b/frontend/src/components/BlankCardsCounter.jsx
index b35b7ed..3292eea 100644
--- a/frontend/src/components/BlankCardsCounter.jsx
+++ b/frontend/src/components/BlankCardsCounter.jsx
@@ -1,3 +1,5 @@
+import React from 'react';
+
 export default function BlankCardsCounter({ index, blankCardsCount, handleBlankCardChange }) {
   
   const maxCardsPerRow = 7;
@@ -7,35 +9,29 @@ export default function BlankCardsCounter({ index, blankCardsCount, handleBlankC
   }
 
   return (
-    <div className="flex flex-col items-center mx-1 my-2 z-10 w-32">
+    <div className="flex flex-col items-center w-full">
       
-      <div className="relative w-full h-52 flex flex-col items-center justify-center shrink-0">
+      {/* Bloque de botones */}
+      <div className="flex items-center gap-1 bg-white px-2 py-1.5 rounded-full shadow-sm border border-slate-200 z-10 relative shrink-0">
+        <button 
+          onClick={() => handleBlankCardChange(index, -1)}
+          className="w-7 h-7 flex items-center justify-center rounded-full bg-slate-50 hover:bg-slate-200 text-slate-600 font-bold transition-colors"
+        >-</button>
         
-        {/* Línea conectora horizontal */}
-        <div className="absolute w-[calc(100%+2rem)] h-1 bg-slate-200 top-[50%] -translate-y-1/2 z-0 rounded"></div>
-        
-        {/* Botones - y + */}
-        <div className="flex items-center gap-1 bg-white px-2 py-1.5 rounded-full shadow-sm border border-slate-200 z-10 relative">
-          <button 
-            onClick={() => handleBlankCardChange(index, -1)}
-            className="w-7 h-7 flex items-center justify-center rounded-full bg-slate-50 hover:bg-slate-200 text-slate-600 font-bold transition-colors"
-          >-</button>
-          
-          <div className="flex flex-col items-center leading-none min-w-[3rem]">
-            <span className="text-[9px] font-bold text-slate-400 uppercase tracking-widest mb-1">Blancas</span>
-            <span className="text-base font-black text-blue-600">{blankCardsCount}</span>
-          </div>
-          
-          <button 
-            onClick={() => handleBlankCardChange(index, 1)}
-            className="w-7 h-7 flex items-center justify-center rounded-full bg-slate-50 hover:bg-slate-200 text-slate-600 font-bold transition-colors"
-          >+</button>
+        <div className="flex flex-col items-center leading-none min-w-[3rem]">
+          <span className="text-[9px] font-bold text-slate-400 uppercase tracking-widest mb-1">Blancas</span>
+          <span className="text-base font-black text-blue-600 leading-none">{blankCardsCount}</span>
         </div>
+        
+        <button 
+          onClick={() => handleBlankCardChange(index, 1)}
+          className="w-7 h-7 flex items-center justify-center rounded-full bg-slate-50 hover:bg-slate-200 text-slate-600 font-bold transition-colors"
+        >+</button>
       </div>
 
       {/* Cartas blancas */}
       {blankCardsCount > 0 && (
-        <div className="flex flex-col items-center gap-y-3 w-full justify-center -mt-16 relative z-0">
+        <div className="flex flex-col items-center gap-y-2 w-full mt-3 relative z-0">
           {rows.map((row, rowIndex) => (
             <div key={rowIndex} className="flex flex-row items-center justify-center -space-x-4">
               {row.map((_, colIndex) => (
diff --git a/frontend/src/components/CardEditor.jsx b/frontend/src/components/CardEditor.jsx
index c5e887f..4783869 100644
--- a/frontend/src/components/CardEditor.jsx
+++ b/frontend/src/components/CardEditor.jsx
@@ -10,9 +10,9 @@ export default function CardEditor({ index, level, handleLevelChange, handleRemo
         )}
         <span className="absolute top-3 left-4 text-sm font-black text-slate-300">{index + 1}</span>
         <span className="absolute bottom-3 right-4 text-sm font-black text-slate-300 rotate-180">{index + 1}</span>
-        <input type="text" placeholder="Etiqueta..." value={level} onChange={(e) => handleLevelChange(index, e.target.value)} className={`w-10/12 text-center text-lg font-bold text-slate-700 bg-transparent border-b-2 border-dashed outline-none pb-1 ${error ? 'border-red-300 focus:border-red-500 placeholder:text-red-200' : 'border-slate-300 focus:border-blue-500'}`} />
+        <input type="text" placeholder="Término..." value={level} onChange={(e) => handleLevelChange(index, e.target.value)} className={`w-10/12 text-center text-lg font-bold text-slate-700 bg-transparent border-b-2 border-dashed outline-none pb-1 ${error ? 'border-red-300 focus:border-red-500 placeholder:text-red-200' : 'border-slate-300 focus:border-blue-500'}`} />
       </div>
-      <div className="h-6 mt-2">{error && <p className="text-red-500 text-xs font-semibold animate-pulse">Escribe una etiqueta</p>}</div>
+      <div className="h-6 mt-2">{error && <p className="text-red-500 text-xs font-semibold animate-pulse">Escribe un término</p>}</div>
     </div>
   );
 }
\ No newline at end of file
diff --git a/frontend/src/components/editor/Step1BaseScale.jsx b/frontend/src/components/editor/Step1BaseScale.jsx
index 115b450..2ee5755 100644
--- a/frontend/src/components/editor/Step1BaseScale.jsx
+++ b/frontend/src/components/editor/Step1BaseScale.jsx
@@ -59,30 +59,48 @@ 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 pb-8 pt-4 px-4' : 'overflow-hidden flex justify-center pb-8 pt-4'}`}>
+        <div ref={containerRef} className={`w-full mt-2 transition-all relative ${!isZoomActive && needsZoom ? 'overflow-x-auto flex justify-start pb-12 pt-4 px-4 custom-scrollbar' : 'overflow-visible flex justify-center pb-12 pt-4'}`}>
             <div className={`flex flex-row items-start min-w-max transition-transform duration-500 ease-out px-4 origin-top`} style={{ transform: `scale(${currentScale})`, marginBottom: isZoomActive && currentScale < 1 ? `-${(1 - currentScale) * 300}px` : '0px' }}>
             
                 <div ref={tableRef} className="flex flex-row items-start relative px-10 overflow-visible">
                     {levels.map((level, index) => (
                     <React.Fragment key={index}>
-                        <div className="flex flex-col items-center mx-2 my-2 relative z-20">
+                        
+                        {/* CARTA DE NIVEL */}
+                        <div className="flex flex-col items-center mx-2 relative z-20">
                             <CardEditor index={index} level={level} handleLevelChange={handleLevelChange} handleRemoveLevel={handleRemoveLevel} totalLevels={levels.length} error={errors.levels[index]} canRemove={levels.length > 3} />
                         </div>
+
+                        {/* HUECO ENTRE CARTAS Y CONTADOR */}
                         {index < levels.length - 1 && (
-                        <BlankCardsCounter index={index} blankCardsCount={blankCards[index]} handleBlankCardChange={handleBlankCardChange} />
+                        <div className="flex flex-col items-center justify-start mx-1 relative min-w-[120px]">
+                            <div className="absolute w-[calc(100%+2rem)] h-1 bg-slate-200 top-[80px] -translate-y-1/2 z-0"></div>
+                            
+                            <div className="mt-[60px] flex flex-col items-center relative z-10 w-full">
+                                <BlankCardsCounter index={index} blankCardsCount={blankCards[index]} handleBlankCardChange={handleBlankCardChange} />
+                            </div>
+                        </div>
                         )}
                     </React.Fragment>
                     ))}
-                    <div className="mx-1 my-2 h-52 flex items-center justify-center">
-                        <div className="w-10 h-1 bg-slate-200 rounded"></div>
+                    
+                    {/* LÍNEA HACIA EL BOTÓN DE AÑADIR */}
+                    <div className="flex flex-col items-center justify-start relative min-w-[40px]">
+                        <div className="absolute w-full h-1 bg-slate-200 top-[80px] -translate-y-1/2 z-0 rounded"></div>
                     </div>
-                    <AddLevelButton handleAddLevel={handleAddLevel} />
+
+                    {/* BOTÓN AÑADIR NIVEL */}
+                    <div className="flex flex-col items-center mx-2 relative z-20">
+                        <AddLevelButton handleAddLevel={handleAddLevel} />
+                    </div>
+
                 </div>
 
             </div>
         </div>
         
-        <div className="w-full max-w-lg mt-2 pt-6 border-t border-slate-200 flex flex-col items-center z-20 relative bg-white">
+        {/* Generar Gráfica Continua */}
+        <div className="w-full max-w-lg mt-8 pt-6 border-t border-slate-200 flex flex-col items-center z-20 relative bg-white">
             <button onClick={handleGenerateBaseScale} disabled={isLoading} className={`w-full py-3 text-white text-lg font-bold rounded-xl shadow-md transition-all active:scale-[0.98] ${isLoading ? 'bg-slate-400 cursor-not-allowed' : 'bg-gradient-to-r from-blue-600 to-indigo-600 hover:from-blue-700 hover:to-indigo-700'}`}>
             {isLoading ? 'Calculando...' : 'Generar Gráfica Continua'}
             </button>
diff --git a/frontend/src/components/editor/Step2FuzzyModeling.jsx b/frontend/src/components/editor/Step2FuzzyModeling.jsx
index dcc3d18..2369c54 100644
--- a/frontend/src/components/editor/Step2FuzzyModeling.jsx
+++ b/frontend/src/components/editor/Step2FuzzyModeling.jsx
@@ -79,7 +79,7 @@ export default function Step2FuzzyModeling({
         
         <div className="w-full mt-8 flex justify-center">
             <button onClick={handleFinalSubmit} className="px-10 py-3 bg-slate-900 text-white text-lg font-bold rounded-xl shadow-md hover:bg-slate-800 transition-colors">
-                Guardar Todo el Espectro Difuso
+                Generar el Espectro Difuso
             </button>
         </div>
     </div>
diff --git a/frontend/src/components/editor/SubscaleModal.jsx b/frontend/src/components/editor/SubscaleModal.jsx
index 3a751f1..6f70c3a 100644
--- a/frontend/src/components/editor/SubscaleModal.jsx
+++ b/frontend/src/components/editor/SubscaleModal.jsx
@@ -3,10 +3,19 @@ import BlankCardsCounter from '../BlankCardsCounter';
 
 export default function SubscaleModal({ onClose, onSave, targetInfo }) {
 
-  const [cardsCount, setCardsCount] = useState(targetInfo?.initialData?.cardsCount || 2);
+  const initialCount = Math.max(3, targetInfo?.initialData?.cardsCount || 3);
+  const [cardsCount, setCardsCount] = useState(initialCount);
   
   const [blankCards, setBlankCards] = useState(() => {
-    const initialBlanks = targetInfo?.initialData?.blankCards || [0];
+    let initialBlanks = targetInfo?.initialData?.blankCards;
+    
+    if (!initialBlanks || initialBlanks.length === 0) {
+      initialBlanks = [0, 0];
+    } else if (initialBlanks.length < initialCount - 1) {
+      const padding = Array(initialCount - 1 - initialBlanks.length).fill(0);
+      initialBlanks = [...initialBlanks, ...padding];
+    }
+
     return initialBlanks.map(b => {
       if (Array.isArray(b)) {
         return { min: b[0], max: b[1], isRange: true };
@@ -21,7 +30,7 @@ export default function SubscaleModal({ onClose, onSave, targetInfo }) {
   };
   
   const handleRemoveCard = () => {
-    if (cardsCount <= 2) return;
+    if (cardsCount <= 3) return;
     setCardsCount(prev => prev - 1);
     setBlankCards(blankCards.slice(0, -1));
   };
@@ -73,10 +82,10 @@ export default function SubscaleModal({ onClose, onSave, targetInfo }) {
   };
 
   return (
-    <div className="fixed inset-0 z-[100] flex items-center justify-center bg-slate-900/40 backdrop-blur-sm animate-fade-in">
-      <div className="bg-white w-full max-w-6xl p-8 rounded-3xl shadow-2xl mx-4 flex flex-col">
+    <div className="fixed inset-0 z-[100] flex items-center justify-center bg-slate-900/40 backdrop-blur-sm animate-fade-in py-4">
+      <div className="bg-white w-full max-w-6xl p-8 rounded-3xl shadow-2xl mx-4 flex flex-col max-h-[95vh]">
         
-        <div className="flex justify-between items-center mb-6 border-b pb-4">
+        <div className="flex justify-between items-center mb-4 border-b pb-4 shrink-0">
           <div>
             <h2 className="text-2xl font-bold text-slate-800">Diseñar Subescala</h2>
             <p className="text-slate-500 font-medium">
@@ -86,16 +95,15 @@ export default function SubscaleModal({ onClose, onSave, targetInfo }) {
           <button onClick={onClose} className="w-10 h-10 bg-slate-100 hover:bg-slate-200 text-slate-600 rounded-full font-bold transition-colors">✕</button>
         </div>
 
-        {/* Tablero de Cartas */}
-        <div className="w-full py-10 overflow-x-auto flex justify-start px-4">
+        <div className="w-full overflow-y-auto overflow-x-auto flex justify-start flex-1 custom-scrollbar px-2 pt-6 pb-12">
           <div className="flex flex-row items-start min-w-max relative">
             
             {Array.from({ length: cardsCount }).map((_, index) => (
               <React.Fragment key={index}>
                 {/* CARTA DE REFERENCIA  */}
-                <div className="flex flex-col items-center mx-2 my-2 relative z-20">
+                <div className="flex flex-col items-center mx-2 relative z-20">
                   <div className="relative w-32 h-40 bg-slate-50 border-2 border-slate-300 rounded-2xl shadow-sm flex flex-col items-center justify-center group">
-                    {cardsCount > 2 && index === cardsCount - 1 && (
+                    {cardsCount > 3 && index === cardsCount - 1 && (
                       <button onClick={handleRemoveCard} className="absolute -top-3 -right-3 w-8 h-8 bg-white text-slate-400 rounded-full border border-slate-200 flex items-center justify-center font-bold hover:bg-red-500 hover:text-white transition-colors z-10 shadow-sm opacity-0 group-hover:opacity-100">✕</button>
                     )}
                     <span className="text-4xl font-black text-slate-200">{index + 1}</span>
@@ -104,58 +112,57 @@ export default function SubscaleModal({ onClose, onSave, targetInfo }) {
 
                 {/* HUECO ENTRE CARTAS */}
                 {index < cardsCount - 1 && (
-                  <div className="flex flex-col items-center justify-center mx-1 h-40 relative">
-
-                    {/* Controles de números */}
-                    {blankCards[index].isRange ? (
-                      // MODO RANGO 
-                      <div className="flex gap-1 items-center">
-                        <div className="flex flex-col items-center">
-                          <span className="text-[10px] font-bold text-slate-500 mb-1">MÍN</span>
-                          <BlankCardsCounter 
-                            index={index} 
-                            blankCardsCount={blankCards[index].min} 
-                            handleBlankCardChange={(idx, delta) => handleMinChange(idx, delta)} 
-                          />
+                  <div className="flex flex-col items-center justify-start mx-1 relative min-w-[120px]">
+                    <div className="absolute w-[calc(100%+2rem)] h-1 bg-slate-200 top-[80px] -translate-y-1/2 z-0"></div>
+                    
+                    <div className="mt-[60px] flex flex-col items-center relative z-10 w-full">
+                      {blankCards[index].isRange ? (
+                        <div className="flex gap-2 items-start w-full justify-center">
+                          <div className="flex flex-col items-center relative">
+                            <span className="absolute bottom-full mb-1 text-[10px] font-bold text-slate-500">MÍN</span>
+                            <BlankCardsCounter 
+                              index={index} 
+                              blankCardsCount={blankCards[index].min} 
+                              handleBlankCardChange={(idx, delta) => handleMinChange(idx, delta)} 
+                            />
+                          </div>
+                          
+                          <div className="font-bold text-slate-300 mt-1">-</div>
+                          
+                          <div className="flex flex-col items-center relative">
+                            <span className="absolute bottom-full mb-1 text-[10px] font-bold text-slate-500">MÁX</span>
+                            <BlankCardsCounter 
+                              index={index} 
+                              blankCardsCount={blankCards[index].max} 
+                              handleBlankCardChange={(idx, delta) => handleMaxChange(idx, delta)} 
+                            />
+                          </div>
                         </div>
-                        {/* Guión separador para unificar visualmente el rango */}
-                        <span className="text-slate-300 font-bold mt-3">-</span>
-                        <div className="flex flex-col items-center">
-                          <span className="text-[10px] font-bold text-slate-500 mb-1">MÁX</span>
-                          <BlankCardsCounter 
-                            index={index} 
-                            blankCardsCount={blankCards[index].max} 
-                            handleBlankCardChange={(idx, delta) => handleMaxChange(idx, delta)} 
-                          />
+                      ) : (
+                        <div className="flex flex-col items-center relative">
+                           <span className="absolute bottom-full mb-1 text-[10px] font-bold text-slate-500">CARTAS</span>
+                           <BlankCardsCounter 
+                              index={index} 
+                              blankCardsCount={blankCards[index].min} 
+                              handleBlankCardChange={(idx, delta) => handleExactChange(idx, delta)} 
+                            />
                         </div>
-                      </div>
-                    ) : (
-                      // MODO EXACTO
-                      <div className="flex flex-col items-center">
-                         <span className="text-[10px] font-bold text-slate-500 mb-1">CARTAS</span>
-                         <BlankCardsCounter 
-                            index={index} 
-                            blankCardsCount={blankCards[index].min} 
-                            handleBlankCardChange={(idx, delta) => handleExactChange(idx, delta)} 
-                          />
-                      </div>
-                    )}
-
-                    {/* Botón Toggle */}
-                    <button
-                      onClick={() => toggleRangeMode(index)}
-                      className="absolute -bottom-6 text-[10px] font-semibold text-blue-600 hover:text-blue-800 hover:underline transition-colors text-center w-max"
-                    >
-                      {blankCards[index].isRange ? "Conozco la distancia" : "¿Dudas? Rango"}
-                    </button>
+                      )}
 
+                      <button
+                        onClick={() => toggleRangeMode(index)}
+                        className="mt-4 text-[11px] font-semibold text-blue-600 hover:text-blue-800 hover:bg-blue-50 px-4 py-2 rounded-full border border-transparent hover:border-blue-200 transition-all text-center w-max cursor-pointer z-20"
+                      >
+                        {blankCards[index].isRange ? "Conozco la distancia" : "¿Dudas? Rango"}
+                      </button>
+                    </div>
                   </div>
                 )}
               </React.Fragment>
             ))}
             
             {/* Botón Añadir Carta */}
-            <div className="mx-2 my-2 h-40 flex items-center">
+            <div className="flex flex-col items-center mx-2 relative z-20">
                <button onClick={handleAddCard} className="w-32 h-40 border-4 border-dashed border-slate-300 rounded-2xl flex flex-col items-center justify-center text-slate-400 font-bold hover:bg-blue-50 hover:border-blue-400 hover:text-blue-500 transition-colors group">
                   <span className="text-3xl group-hover:scale-110 transition-transform">+</span>
                </button>
@@ -165,7 +172,7 @@ export default function SubscaleModal({ onClose, onSave, targetInfo }) {
         </div>
 
         {/* Botones de Acción */}
-        <div className="mt-8 flex justify-between items-center border-t pt-6">
+        <div className="mt-4 flex justify-between items-center border-t pt-6 shrink-0">
           <button onClick={handleDelete} className="px-6 py-3 rounded-xl font-bold text-red-500 hover:bg-red-50 transition-colors">
             Borrar Subescala
           </button>