refactor: rediseñar tablero de cartas en sentido horizontal, añadiendo zoom y lupa cuando hay muchas cartas para poder ver toda la escala y tener control al mismo tiempo.

frontend/src/components/AddLevelButton.jsx

@@ -1,13 +1,14 @@
 export default function AddLevelButton({ handleAddLevel }) {
   return (
-    <div className="w-72 mt-6">
+    <div className="flex flex-col items-center mx-2 my-4">
       <button
         onClick={handleAddLevel}
-        className="w-full h-24 border-4 border-dashed border-slate-300 rounded-xl flex flex-col items-center justify-center gap-1 text-slate-400 font-semibold hover:bg-blue-50 hover:border-blue-400 hover:text-blue-500 transition-all active:scale-[0.98]"
+        className="w-44 h-60 border-4 border-dashed border-slate-300 rounded-2xl flex flex-col items-center justify-center gap-2 text-slate-400 font-semibold hover:bg-blue-50 hover:border-blue-400 hover:text-blue-500 transition-all active:scale-[0.98] group"
       >
-        <span className="text-3xl leading-none">+</span>
-        <span className="text-sm">Añadir Carta</span>
+        <span className="text-4xl font-light leading-none group-hover:scale-110 transition-transform">+</span>
+        <span className="text-sm uppercase tracking-widest font-bold text-center px-4">Añadir Carta</span>
       </button>
+      <div className="h-6 mt-3"></div>
     </div>
   );
 }

frontend/src/components/BlankCardsCounter.jsx

@@ -1,36 +1,40 @@
 export default function BlankCardsCounter({ index, blankCardsCount, handleBlankCardChange }) {
   return (
-    <div className="flex flex-col items-center my-2 w-full">
-      <div className="w-0.5 h-6 bg-slate-300"></div>
+    <div className="flex flex-col items-center relative mx-1 mb-10">
       
-      <div className="flex items-center gap-3 bg-white px-4 py-2 rounded-full shadow-sm border border-slate-200 z-10">
-        <span className="text-xs font-bold text-slate-400 uppercase tracking-wider">Blancas:</span>
+      <div className="absolute w-full h-1 bg-slate-200 top-[40%] -translate-y-1/2 -z-10 rounded"></div>
+      
+      {/* Botones de - 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">
         <button 
           onClick={() => handleBlankCardChange(index, -1)}
-          className="w-7 h-7 flex items-center justify-center rounded-full bg-slate-100 hover:bg-slate-200 text-slate-600 font-bold transition-colors"
+          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>
-        <span className="text-base font-bold w-6 text-center text-blue-600">
-          {blankCardsCount}
-        </span>
+        
+        <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-100 hover:bg-slate-200 text-slate-600 font-bold transition-colors"
+          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 -space-y-4 mt-3 mb-1">
+        <div className="absolute top-[75px] flex flex-row items-center -space-x-4">
           {Array.from({ length: blankCardsCount }).map((_, i) => (
             <div 
               key={i} 
-              className="w-16 h-8 bg-blue-50 border-2 border-blue-200 rounded shadow-sm opacity-80"
+              className="w-8 h-12 bg-white border-2 border-dashed border-slate-300 rounded shadow-sm opacity-90 transition-all hover:-translate-y-1"
               style={{ zIndex: i }}
             ></div>
           ))}
         </div>
       )}
 
-      <div className="w-0.5 h-6 bg-slate-300"></div>
     </div>
   );
 }

frontend/src/components/CardEditor.jsx

@@ -1,10 +1,9 @@
 export default function CardEditor({ index, level, handleLevelChange, handleRemoveLevel, totalLevels, error }) {
   return (
-    <div className="flex flex-col items-center">
-      <div className={`relative w-72 h-44 bg-white border-2 rounded-xl shadow-[0_8px_30px_rgb(0,0,0,0.08)] flex flex-col items-center justify-center transition-transform hover:-translate-y-1 hover:shadow-[0_12px_40px_rgb(0,0,0,0.12)] group ${
+    <div className="flex flex-col items-center mx-2 my-4">
+      <div className={`relative w-44 h-60 bg-white border-2 rounded-2xl shadow-[0_8px_30px_rgb(0,0,0,0.08)] flex flex-col items-center justify-center transition-transform hover:-translate-y-2 hover:shadow-[0_12px_40px_rgb(0,0,0,0.12)] group ${
         error ? 'border-red-400 shadow-red-100' : 'border-slate-200'
       }`}>
-        {/* Botón para eliminar */}
         {totalLevels > 3 && (
           <button
             onClick={() => handleRemoveLevel(index)}
@@ -15,30 +14,27 @@ export default function CardEditor({ index, level, handleLevelChange, handleRemo
           </button>
         )}
 
-        {/* Detalles tipo naipe */}
-        <span className="absolute top-4 left-4 text-sm font-black text-slate-300">{index + 1}</span>
-        <span className="absolute bottom-4 right-4 text-sm font-black text-slate-300 rotate-180">{index + 1}</span>
+        <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="Escribe aquí..."
+          placeholder="Etiqueta..."
           value={level}
           onChange={(e) => handleLevelChange(index, e.target.value)}
-          className={`w-4/5 text-center text-2xl font-bold text-slate-700 bg-transparent border-b-2 border-dashed outline-none pb-1 ${
+          className={`w-10/12 text-center text-xl 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>
       
-      {/* Mensaje de error */}
-      <div className="h-6 mt-2">
+      <div className="h-6 mt-3">
         {error && (
           <p className="text-red-500 text-sm font-semibold animate-pulse">
             Escribe una etiqueta
           </p>
         )}
       </div>
-
     </div>
   );
 }

frontend/src/pages/AdvancedMode.jsx

@@ -19,6 +19,9 @@ export default function AdvancedMode() {
   const [blankCards, setBlankCards] = useState([0, 0]);
   const [errors, setErrors] = useState({ criterion: false, levels: [] });
   
+  // Estado para controlar la lupa (Zoom)
+  const [isZoomActive, setIsZoomActive] = useState(true);
+
   // Estados Fase 2 (Franjas)
   const [baseScale, setBaseScale] = useState({}); 
   const [selectedTerm, setSelectedTerm] = useState(null);
@@ -94,31 +97,68 @@ export default function AdvancedMode() {
     alert("¡Mira la consola! JSON preparado.");
   };
 
-  // Variables calculadas
   const scaleKeys = Object.keys(baseScale);
   const selectedColor = COLORS[scaleKeys.indexOf(selectedTerm) % COLORS.length] || '#2563eb';
 
+  const totalElements = levels.length;
+  const dynamicScale = totalElements > 6 ? 6.2 / totalElements : 1;
+  const currentScale = isZoomActive ? Math.max(0.4, dynamicScale) : 1;
 
   return (
     <div className="w-full flex flex-col items-center">
       
-      {/* --- PASO 1 --- */}
+      {/* PASO 1 */}
       {step === 1 && (
-        <div className="w-full bg-white p-8 rounded-3xl shadow-sm border border-slate-200 mb-12 flex flex-col items-center animate-fade-in">
-          <h2 className="text-2xl font-bold text-slate-800 mb-8 w-full border-b pb-4">Paso 1: Escala de Referencia (Cartas)</h2>
+        <div className="w-full bg-white p-8 rounded-3xl shadow-sm border border-slate-200 mb-12 flex flex-col items-center animate-fade-in overflow-hidden">
+          
+          <div className="flex justify-between items-center w-full mb-8 border-b pb-4">
+            <h2 className="text-2xl font-bold text-slate-800">
+              Paso 1: Escala de Referencia (Mesa)
+            </h2>
+            
+            {totalElements > 6 && (
+              <button
+                onClick={() => setIsZoomActive(!isZoomActive)}
+                className={`flex items-center gap-2 px-4 py-2 rounded-xl font-bold transition-all shadow-sm border-2 ${
+                  isZoomActive 
+                    ? 'bg-blue-50 border-blue-200 text-blue-700 hover:bg-blue-100' 
+                    : 'bg-white border-slate-200 text-slate-600 hover:bg-slate-50'
+                }`}
+              >
+                <span className="text-xl">{isZoomActive ? '🔍' : '🖼️'}</span>
+                {isZoomActive ? 'Ver de cerca' : 'Ajustar mesa a la pantalla'}
+              </button>
+            )}
+          </div>
+
           <CriterionInput criterionName={criterionName} setCriterionName={handleCriterionChange} error={errors.criterion} />
           
-          <div className="w-full max-w-lg flex flex-col items-center">
+          <div className={`w-full mt-6 flex ${!isZoomActive ? 'overflow-x-auto pb-12 justify-start px-4' : 'overflow-hidden justify-center'}`}>
+            
+            <div 
+              className={`flex flex-row items-center min-w-max px-2 transition-transform duration-500 ease-out ${isZoomActive ? 'origin-top' : 'origin-top-left'}`}
+              style={{ 
+                transform: `scale(${currentScale})`,
+                marginBottom: isZoomActive && currentScale < 1 ? `-${(1 - currentScale) * 350}px` : '0px'
+              }}
+            >
               {levels.map((level, index) => (
-              <div key={index} className="w-full flex flex-col items-center">
+                <React.Fragment key={index}>
                   <CardEditor index={index} level={level} handleLevelChange={handleLevelChange} handleRemoveLevel={handleRemoveLevel} totalLevels={levels.length} error={errors.levels[index]} canRemove={levels.length > 3} />
-                {index < levels.length - 1 && <BlankCardsCounter index={index} blankCardsCount={blankCards[index]} handleBlankCardChange={handleBlankCardChange} />}
-              </div>
+                  
+                  {index < levels.length - 1 && (
+                    <BlankCardsCounter index={index} blankCardsCount={blankCards[index]} handleBlankCardChange={handleBlankCardChange} />
+                  )}
+                </React.Fragment>
               ))}
+              
+              <div className="w-6 h-1 bg-slate-200 mx-1 top-[40%]"></div>
               <AddLevelButton handleAddLevel={handleAddLevel} />
             </div>
 
-          <div className="w-full max-w-lg mt-12 pt-8 border-t-2 border-slate-200 flex flex-col items-center">
+          </div>
+          
+          <div className="w-full max-w-lg mt-12 pt-8 border-t-2 border-slate-200 flex flex-col items-center z-20 relative bg-white">
             <button onClick={handleGenerateBaseScale} disabled={isLoading} className={`w-full py-4 text-white text-xl font-bold rounded-xl shadow-lg 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>
@@ -126,7 +166,7 @@ export default function AdvancedMode() {
         </div>
       )}
 
-      {/* --- PASO 2 --- */}
+      {/* PASO 2 */}
       {step === 2 && (
         <div className="w-full max-w-6xl bg-white p-10 rounded-3xl shadow-sm border border-slate-200 animate-fade-in">
           <div className="flex justify-between items-center mb-8 border-b pb-4">