diff --git a/src/config.js b/src/config.js
index df2f34f..2cd912d 100644
--- a/src/config.js
+++ b/src/config.js
@@ -1,3 +1,4 @@
+const path = require('path');
 const config = {
     db:{
         host: '192.168.10.150', 
@@ -9,8 +10,9 @@ const config = {
         sock: '/'
     },
     dir:{
-        root_dir: '/home/pablinux/Projects/Node/APP-SIGMA-WEB/src/public/files/',
-        path_dir: process.cwd(), // usa el path del ejecutable real
+        //root_dir: '/home/pablinux/Projects/Node/APP-SIGMA-WEB/src/public/files/',
+        //path_dir: process.cwd(), // usa el path del ejecutable real
+        path_dir: path.join(__dirname, 'public', 'files'),
     },
     sesion:{
         id:"",
diff --git a/src/controladores/controlador_Cont_PagosTransacciones b/src/controladores/controlador_Cont_PagosTransacciones.js
similarity index 100%
rename from src/controladores/controlador_Cont_PagosTransacciones
rename to src/controladores/controlador_Cont_PagosTransacciones.js
diff --git a/src/controladores/controlador_cloud.js b/src/controladores/controlador_cloud.js
index 1748ef2..95f78eb 100644
--- a/src/controladores/controlador_cloud.js
+++ b/src/controladores/controlador_cloud.js
@@ -2,21 +2,25 @@ const controlador = {};
 //const dirPath = "/home/pablinux/Projects/Node/APP-SIGMA-WEB/src/public/files/";
 //const var_locals = ;
 //*********  APP-panel control  ********//
+const path = require('path');
 controlador.upload = (req, res) => {
-  if (!req.files || Object.keys(req.files).lenght === 0) {
-    return res.status(400).send({ message: 'archivos no cargados' });
+  if (!req.files || Object.keys(req.files).length === 0) {
+    return res.status(400).json({ status: 'error', message: 'Archivos no cargados' });
   } else {
     const file = req.files.file_toUpload;
-    const path = req.app.locals.dir.path_dir + '/public/files/' + file.name;
-    console.log(path);
-    file.mv(path, (err) => {
+    const destinationPath = path.join(req.app.locals.dir.path_dir, file.name);
+
+    file.mv(destinationPath, (err) => {
       if (err) {
-        return res.status(500).send(err);
+        console.error("Error al mover el archivo:", err);
+        return res.status(500).json({ status: 'error', message: 'Error al subir el archivo', error: err.message });
       }
-      return res.send({ status: "success", path: path });
+      // *** Mantener la respuesta JSON ***
+      return res.json({ status: "success", message: `Archivo '${file.name}' subido exitosamente.` });
     });
   }
 };
+
 controlador.upload_video = (req, res) => {
   if (!req.files || Object.keys(req.files).lenght === 0) {
     return res.status(400).send({ message: 'archivos no cargados' });
@@ -34,18 +38,16 @@ controlador.upload_video = (req, res) => {
 };
 
 //ruta actual
-const procesarPath = (path) => {
-  return path ? path.replace(/-/g, '/') : '/';
-}
-
-const fs = require('fs');
+const fs = require('fs'); // Asegúrate de que esta línea esté al principio del archivo si no lo está
 function leer_dir(dir) {
   var json = [];
-  var files = fs.readdirSync(dir + '/public/files/', { withFileTypes: true });
+  // ¡CORRECCIÓN AQUÍ! Usa 'dir' directamente, sin añadir '/public/files/'
+  var files = fs.readdirSync(dir, { withFileTypes: true }); 
+  
   files.forEach(function (arch, idx) {
-    json.push({ "indice": idx, "archivo": arch.name, "link": "files/" + arch });
-    //console.log(arch.name);
-    //console.log(req);
+    // Si el link para la interfaz web debe ser relativo a 'files/', esto es correcto.
+    json.push({ "indice": idx, "archivo": arch.name, "link": "files/" + arch.name }); 
+    // Nota: 'arch' es un objeto dirent, necesitas 'arch.name' para el nombre del archivo.
   });
   return json;
 }
@@ -69,8 +71,8 @@ controlador.cloud_panel = (req, res, next) => {
       } else {
         try {
           if (rows.length > 0) {
-            let dir = procesarPath(req.params.path);
-            console.log(req.app.locals.dir);
+            //let dir = procesarPath(req.params.path);
+            //console.log(req.app.locals.dir);
             var files = leer_dir(req.app.locals.dir.path_dir);
             res.render('cloud', {
               data: files
@@ -83,7 +85,7 @@ controlador.cloud_panel = (req, res, next) => {
           }
         } catch (e) {
           res.render('login_cloud',{msg:e.toString()});
-          //next(e);
+          next(e);
         }
       }
     });
diff --git a/src/public/css/cloud.css b/src/public/css/cloud.css
index a382702..965942a 100644
--- a/src/public/css/cloud.css
+++ b/src/public/css/cloud.css
@@ -1,106 +1,402 @@
-body{
-  background:rgb(10, 10, 10);
-  color: rgb(255, 255, 255);
-}
-.files{
-}
-.info{
-  font-family: sigma_font;
-  font-size: 20px;
-}
-.upload{
+/* Cloud SIGMA - Estilos Personalizados */
 
+:root {
+  --primary-gradient: linear-gradient(135deg, #4a5897 0%, #001833 100%);
+  --secondary-gradient: linear-gradient(135deg, #486ccf 0%, #f5576c 100%);
+  --dark-gradient: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
+  --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
+  --glass-bg: rgba(255, 255, 255, 0.1);
+  --glass-border: rgba(255, 255, 255, 0.2);
 }
 
-.icon {
-  width: 2em;
-  height: 2em;
-}
-#titulo{
-  color: rgb(0, 0, 0);
-}
-#rep-video{
-  width: 600;
-  height:400;
-}
-#ctr.l_audio{
-  margin-top: -60px;
+body {
+  background: linear-gradient(135deg, #667eea 0%, #4b58a2 50%, #93bdfb 100%);
+  min-height: 100vh;
+  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
 }
 
-/*  MENU USUARIO DESPLEGABLE  */
-.dropdown-menu {
-  position: absolute;
-  left: 5%;
-  left: auto;
-  border: 1px solid #ddd;
-  background: #fff;
-  padding: 0px;
+/* Navbar Improvements */
+.navbar-custom {
+  background: rgba(0, 0, 0, 0.9) !important;
+  backdrop-filter: blur(10px);
+  border-bottom: 1px solid rgba(104, 101, 158, 0.1);
+  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
+  
+  /* --- CAMBIO CLAVE AQUÍ --- */
+  position: relative; /* O 'fixed', o 'sticky' dependiendo de tu necesidad, pero debe ser no-static */
+  z-index: 1060; /* Un z-index más alto que el dropdown para que el dropdown esté dentro de su contexto */
+  /* --- FIN CAMBIO CLAVE --- */
 }
-.dropdown-menu ul{
-  list-style-type: none;
-  color: aliceblue;
-  padding: 0px;
+
+.navbar-brand {
+  transition: all 0.3s ease;
 }
-.dropdown-menu ul li{
-  list-style-type: none;
-  color: aliceblue;
+
+.navbar-brand:hover {
+  transform: scale(1.1);
 }
-.dropdown-menu ul li img{
-  z-index: 5;
-  height: 90px;
-  width: 90px;
-  border: 3px solid;
-  border-color: transparent;
-  border-color: rgba(255,255,255,0.2);
-}
-.img-circle {
+
+.navbar-brand img {
   border-radius: 50%;
+  box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
+  transition: all 0.3s ease;
 }
-.dropdown-menu ul li.user-header {
-  height: 175px;
-  padding: 10px;
+
+.navbar-brand img:hover {
+  box-shadow: 0 0 30px rgba(102, 126, 234, 0.8);
+}
+
+/* Search Bar */
+.search-container {
+  position: relative;
+}
+
+.form-control {
+  background: rgba(255, 255, 255, 0.1);
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  border-radius: 25px;
+  color: white;
+  backdrop-filter: blur(10px);
+  transition: all 0.3s ease;
+}
+
+.form-control:focus {
+  background: rgba(255, 255, 255, 0.2);
+  border-color: #667eea;
+  box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
+  color: white;
+}
+
+.form-control::placeholder {
+  color: rgba(255, 255, 255, 0.7);
+}
+
+.btn-search {
+  background: var(--primary-gradient);
+  border: none;
+  border-radius: 25px;
+  color: white;
+  font-weight: 600;
+  transition: all 0.3s ease;
+}
+
+.btn-search:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
+  color: white;
+}
+
+/* Container Improvements */
+.main-container {
+  margin-top: 30px;
+  padding: 0 20px;
+}
+
+/* Upload Section */
+.upload-card {
+  background: rgba(255, 255, 255, 0.1);
+  backdrop-filter: blur(15px);
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  border-radius: 20px;
+  padding: 30px;
+  margin-bottom: 30px;
+  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
+  transition: all 0.3s ease;
+  /* --- CONSIDERACIÓN: Si estas tarjetas siguen por encima, podrías darles un z-index más bajo
+         Pero primero prueba el cambio en navbar-custom */
+  /* z-index: 1; */
+}
+
+.upload-card:hover {
+  transform: translateY(-5px);
+  box-shadow: 0 15px 40px 0 rgba(31, 38, 135, 0.5);
+}
+
+.upload-title {
+  color: white;
+  font-size: 2.5rem;
+  font-weight: 700;
+  margin-bottom: 25px;
+  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
+  background: linear-gradient(45deg, #fff, #667eea);
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+  background-clip: text;
+}
+
+.file-input-container {
+  position: relative;
+  overflow: hidden;
+  display: inline-block;
+  width: 100%;
+}
+
+.file-input {
+  background: rgba(255, 255, 255, 0.1);
+  border: 2px dashed rgba(255, 255, 255, 0.3);
+  border-radius: 15px;
+  padding: 20px;
+  transition: all 0.3s ease;
+  color: white;
+}
+
+.file-input:hover {
+  border-color: #667eea;
+  background: rgba(255, 255, 255, 0.2);
+}
+
+.btn-upload {
+  background: var(--success-gradient);
+  border: none;
+  border-radius: 15px;
+  color: white;
+  font-weight: 600;
+  padding: 12px 30px;
+  transition: all 0.3s ease;
+  text-transform: uppercase;
+  letter-spacing: 1px;
+}
+
+.btn-upload:hover {
+  transform: translateY(-3px);
+  box-shadow: 0 10px 25px rgba(56, 239, 125, 0.4);
+  color: white;
+}
+
+/* Files Table */
+.files-card {
+  background: rgba(255, 255, 255, 0.1);
+  backdrop-filter: blur(15px);
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  border-radius: 20px;
+  padding: 30px;
+  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
+  transition: all 0.3s ease;
+  /* --- CONSIDERACIÓN: Si estas tarjetas siguen por encima, podrías darles un z-index más bajo
+         Pero primero prueba el cambio en navbar-custom */
+  /* z-index: 1; */
+}
+
+.table-custom {
+  background: rgba(0, 0, 0, 0.3);
+  border-radius: 15px;
+  overflow: hidden;
+  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
+}
+
+.table-custom th {
+  background: rgba(0, 0, 0, 0.6);
+  color: white;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 1px;
+  padding: 20px 15px;
+  border: none;
+}
+
+.table-custom td {
+  background: rgba(255, 255, 255, 0.05);
+  color: white;
+  padding: 15px;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  transition: all 0.3s ease;
+}
+
+.table-custom tr:hover td {
+  background: rgba(255, 255, 255, 0.1);
+  transform: scale(1.02);
+}
+
+/* Action Button */
+.btn-action {
+  background: var(--secondary-gradient);
+  border: none;
+  border-radius: 50%;
+  color: white;
+  width: 45px;
+  height: 45px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition: all 0.3s ease;
+  cursor: pointer;
+}
+
+.btn-action:hover {
+  transform: scale(1.2) rotate(360deg);
+  box-shadow: 0 8px 20px rgba(147, 189, 251, 0.4);
+}
+
+/* Modal Improvements */
+.modal-content {
+  background: rgba(255, 255, 255, 0.1);
+  backdrop-filter: blur(20px);
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  border-radius: 20px;
+  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
+}
+
+.modal-header {
+  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
+  padding: 25px 30px;
+}
+
+.modal-title {
+  color: white;
+  font-weight: 600;
+}
+
+.modal-body {
+  padding: 30px;
+}
+
+.modal-footer {
+  border-top: 1px solid rgba(255, 255, 255, 0.2);
+  padding: 20px 30px;
+  gap: 10px;
+}
+
+.modal-footer .btn {
+  border-radius: 50%;
+  width: 50px;
+  height: 50px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  border: none;
+  transition: all 0.3s ease;
+  color: white;
+}
+
+.modal-footer .btn:nth-child(1) {
+  background: linear-gradient(135deg, #6bff72, #52ee6c);
+}
+
+.modal-footer .btn:nth-child(2) {
+  background: linear-gradient(135deg, #4ecdc4, #44a08d);
+}
+
+.modal-footer .btn:nth-child(3) {
+  background: linear-gradient(135deg, #45b7d1, #96c93d);
+}
+
+.modal-footer .btn:nth-child(4) {
+  background: linear-gradient(135deg, #79a3ff, #ff0022);
+  border-radius: 25px;
+  width: auto;
+  padding: 10px 25px;
+}
+
+.modal-footer .btn:hover {
+  transform: translateY(-3px) scale(1.1);
+  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
+}
+
+/* --- CAMBIO CLAVE AQUÍ --- */
+/* Dropdown Menu */
+.dropdown-menu {
+  /* Asegúrate de que position no sea 'static' */
+  position: absolute; 
+  /* Necesita ser un z-index mayor que la navbar si el dropdown está fuera del flujo normal de la navbar (Bootstrap lo suele manejar),
+     o si el navbar tiene un z-index. Un valor como 1050 es un buen punto de partida, pero podemos subirlo. */
+  z-index: 1070; /* Mayor que el z-index de la navbar-custom */
+
+  background: rgba(0, 0, 0, 0.9);
+  backdrop-filter: blur(15px);
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  border-radius: 15px;
+  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
+  color: white;
+  padding: 20px;
+  min-width: 300px;
+}
+/* --- FIN CAMBIO CLAVE --- */
+
+
+.user-header {
   text-align: center;
+  padding: 20px;
+  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
+  margin-bottom: 15px;
 }
-.user-header{
-  background-color: #255977;
-  color: white
+
+.user-header img {
+  width: 80px;
+  height: 80px;
+  border-radius: 50%;
+  border: 3px solid #667eea;
+  box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
+}
+
+.user-header p {
+  margin-top: 15px;
+  color: white;
 }
 
 .user-body {
-  padding: 15px;
-  border-bottom: 1px solid #f4f4f4;
-  border-top: 1px solid #dddddd;
-  background-color: #255977;
+  margin: 15px 0;
 }
+
+.user-body a {
+  color: #667eea;
+  text-decoration: none;
+  transition: all 0.3s ease;
+}
+
+.user-body a:hover {
+  color: #75acff;
+}
+
 .user-footer {
   display: flex;
-  background-color: #8d8d8d;
-  padding: 10px;
+  justify-content: space-between;
+  margin-top: 20px;
+  padding-top: 15px;
+  border-top: 1px solid rgba(255, 255, 255, 0.2);
 }
-.pull-left{
-  box-sizing: border-box;
-  width: 50%;
+
+.user-footer .btn {
+  background: var(--primary-gradient);
+  border: none;
+  border-radius: 20px;
+  color: white;
+  padding: 8px 20px;
+  font-size: 14px;
+  transition: all 0.3s ease;
 }
-.pull-right{
-  box-sizing: border-box;
-  width: 50%;
+
+.user-footer .btn:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
 }
-#id_usuario{
+
+/* Animations */
+@keyframes fadeInUp {
+  from {
+    opacity: 0;
+    transform: translateY(30px);
+  }
+  to {
+    opacity: 1;
+    transform: translateY(0);
+  }
+}
+
+.animate-fadeInUp {
+  animation: fadeInUp 0.6s ease-out;
+}
+
+/* Responsive */
+@media (max-width: 768px) {
+  .upload-title {
+    font-size: 2rem;
+  }
   
-}
-/*#TEST_COLORS{
-  #98BFDA
-#FEDE58
-#98D8A5
-#FE9898
-#FE98FE
-#FFFFFF
-
-#FFEEEC
-#FEFDED
-#EAFFE5
-#ECFDFF
-#F0F1FE
-#FFEBFA
-
-}*/
\ No newline at end of file
+  .upload-card, .files-card {
+    padding: 20px;
+  }
+  
+  .main-container {
+    padding: 0 10px;
+  }
+}
\ No newline at end of file
diff --git a/src/views/cloud.ejs b/src/views/cloud.ejs
index 0e3ad8b..efb94c7 100644
--- a/src/views/cloud.ejs
+++ b/src/views/cloud.ejs
@@ -29,11 +29,11 @@
     function modal(url) {
       var array = url.split(".");
       var tipo = array.pop();
+      var contentHTML = ''; // Variable para almacenar el HTML a inyectar
+
       if (modo_img(tipo)) {
-        //$("#img").attr("src","files/"+url);
-        document.getElementById("data").innerHTML = `<img class="img-fluid rounded" src="files/${url}">`;
+        contentHTML = `<img class="img-fluid rounded" src="files/${url}" style="border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.3);">`;
       } else if (modo_video(tipo)) {
-        //var alto = window.innerHeight;
         var anch = window.innerWidth;
         var porc = 10;
         if (anch > 1400) {
@@ -47,192 +47,301 @@
         } else if (anch > 576) {
           porc = 35;
         }
-        //console.log("Ancho Original: "+anch+", Alto Original: "+alto);
-        //console.log("Ancho -10%: "+(anch-(anch * porc/100))+", Alto: "+alto);
-        var ctrl_video = `
-            <video id="rep-video" width="${anch - (anch * porc / 100)}" controls  preload="auto">
+        contentHTML = `
+            <video id="rep-video" width="${anch - (anch * porc / 100)}" controls preload="auto" style="border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.3);">
               <source src="files/${url}" type="video/${tipo}">
             </video>`;
-        document.getElementById("data").innerHTML = ctrl_video;
       } else if (modo_music(tipo)) {
-        var ctrl_audio = `<div class="text-center "><img src="img/Music-icon.png">
-            <video controls  preload="auto" id="ctrl_audio">
+        contentHTML = `<div class="text-center">
+            <img src="img/Music-icon.png" style="width: 100px; height: 100px; border-radius: 50%; box-shadow: 0 10px 30px rgba(0,0,0,0.3); margin-bottom: 20px;">
+            <video controls preload="auto" id="ctrl_audio" style="width: 100%; border-radius: 15px;">
               <source src="files/${url}" type="audio/${tipo}">
             </video></div>`;
-        document.getElementById("data").innerHTML = ctrl_audio;
+      } else if (modo_pdf(tipo)) { // *** NUEVA LÓGICA PARA PDF ***
+        // Usamos un iframe para incrustar el PDF. El navegador lo renderizará.
+        // Se añade estilo para que el iframe ocupe el espacio disponible y tenga un buen aspecto.
+        contentHTML = `
+          <div style="width: 100%; height: 60vh;"> <iframe src="files/${url}" style="width: 100%; height: 100%; border: none; border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.3);">
+              Este navegador no soporta PDFs incrustados. Puedes descargarlo <a href="files/${url}">aquí</a>.
+            </iframe>
+          </div>
+        `;
       } else {
-        document.getElementById("data").innerHTML = `<img class="img-fluid rounded" src="img/desc256.png">`;
+        contentHTML = `<img class="img-fluid rounded" src="img/desc256.png" style="border-radius: 15px; box-shadow: 0 10px 30px rgba(0,0,0,0.3);">`;
       }
-      document.getElementById("titulo").innerHTML = `Descargar: <a href="files/${url}">${url}</a>`;
+      
+      document.getElementById("data").innerHTML = contentHTML; // Inyecta el HTML generado
+      document.getElementById("titulo").innerHTML = `<i class="fas fa-download me-2"></i>Descargar: <a href="files/${url}" style="color: #667eea; text-decoration: none;">${url}</a>`;
       $("#myModal").modal({ backdrop: true });
     }
 
     function modo_img(file) {
-      var tipoImg = ["jpg", "jpeg", "png","gif", "bmp", "tiff", "svg", "webp", "ico", "psd", "ai", "eps", "raw", "cr2", "nef", "orf", "sr2", "rw2", "dng", "arw", "3fr", "dcr", "kdc", "erf", "mrw", "pef", "raf", "x3f", "srw", "rwl", "r3d", "rwz", "z6ii", "z5", "drf", "k25", "bay", "cap", "iiq", "fff", "mef", "mos", "crw", "erf", "kdc", "dcs", "gpr", "mef", "mos", "nef", "nrw", "orf", "raw", "rw2", "rwl", "sr2", "srf", "x3f"];
-      var std = false;
-      tipoImg.forEach((item, i) => {
-        if (file == item) {
-          console.log(item);
-          std = true;
-        }
-      });
-      return std;
+      var tipoImg = ["jpg", "jpeg", "png", "gif", "bmp", "tiff", "svg", "webp", "ico", "psd", "ai", "eps", "raw", "cr2", "nef", "orf", "sr2", "rw2", "dng", "arw", "3fr", "dcr", "kdc", "erf", "mrw", "pef", "raf", "x3f", "srw", "rwl", "r3d", "rwz", "z6ii", "z5", "drf", "k25", "bay", "cap", "iiq", "fff", "mef", "mos", "crw", "erf", "kdc", "dcs", "gpr", "mef", "mos", "nef", "nrw", "orf", "raw", "rw2", "rwl", "sr2", "srf", "x3f"];
+      return tipoImg.includes(file.toLowerCase());
     }
 
     function modo_video(file) {
-      var tipoImg = ["mp4", "mpg", "webm","avi", "mkv", "mov", "wmv", "flv", "3gp", "m4v"];
-      var std = false;
-      tipoImg.forEach((item, i) => {
-        console.log(item);
-        if (file == item) {
-          //console.log(item);
-          std = true;
-        }
-      });
-      return std;
+      var tipoVideo = ["mp4", "mpg", "webm", "avi", "mkv", "mov", "wmv", "flv", "3gp", "m4v"];
+      return tipoVideo.includes(file.toLowerCase());
     }
+
     function modo_music(file) {
-      var tipoImg = ["mp3", "acc", "wav", "wma", "ogg", "m4a"];
-      var std = false;
-      tipoImg.forEach((item, i) => {
-        if (file == item) {
-          console.log(item);
-          std = true;
-        }
-      });
-      return std;
+      var tipoMusic = ["mp3", "acc", "wav", "wma", "ogg", "m4a"];
+      return tipoMusic.includes(file.toLowerCase());
     }
+
+    // *** NUEVA FUNCIÓN PARA IDENTIFICAR PDF ***
+    function modo_pdf(file) {
+      var tipoPdf = ["pdf"];
+      return tipoPdf.includes(file.toLowerCase());
+    }
+
+    // --- CÓDIGO DE BÚSQUEDA ---
+    $(document).ready(function() {
+      $('form.search-container').submit(function(event) {
+        event.preventDefault();
+      });
+
+      $('#searchInput').on('keyup', function() {
+        var searchText = $(this).val().toLowerCase();
+        $('#filesTableBody tr').each(function() {
+          var fileName = $(this).find('.file-name').text().toLowerCase();
+          if (fileName.includes(searchText)) {
+            $(this).show();
+          } else {
+            $(this).hide();
+          }
+        });
+      });
+
+      // --- CÓDIGO PARA LA SUBIDA AJAX Y MODAL ---
+      const uploadForm = document.getElementById('uploadForm');
+      const fileInput = document.getElementById('fileInput');
+      const messageModal = document.getElementById('messageModal');
+      const modalTitle = document.getElementById('modalTitleMessage');
+      const modalMessage = document.getElementById('modalBodyMessage');
+      const modalCloseButton = document.getElementById('modalCloseButton');
+
+      uploadForm.addEventListener('submit', function(e) {
+          e.preventDefault();
+
+          const formData = new FormData(this);
+
+          const submitButton = this.querySelector('input[type="submit"]');
+          submitButton.disabled = true;
+          submitButton.value = 'Subiendo...';
+
+          fetch(this.action, {
+              method: this.method,
+              body: formData
+          })
+          .then(response => {
+              if (!response.ok) {
+                  return response.json().then(errorData => {
+                      throw new Error(errorData.message || 'Error en la respuesta del servidor');
+                  });
+              }
+              return response.json();
+          })
+          .then(data => {
+              if (data.status === 'success') {
+                  modalTitle.textContent = '¡Subida Exitosa!';
+                  modalMessage.textContent = data.message;
+              } else {
+                  modalTitle.textContent = 'Error en la Subida';
+                  modalMessage.textContent = data.message || 'Ocurrió un error desconocido al subir el archivo.';
+              }
+              $('#messageModal').modal('show');
+          })
+          .catch(error => {
+              console.error('Error al subir el archivo:', error);
+              modalTitle.textContent = 'Error de Conexión';
+              modalMessage.textContent = 'No se pudo conectar con el servidor o hubo un error inesperado: ' + error.message;
+              $('#messageModal').modal('show');
+          })
+          .finally(() => {
+              submitButton.disabled = false;
+              submitButton.value = '📤 SUBIR ARCHIVO';
+              fileInput.value = '';
+          });
+      });
+
+      $('#messageModal').on('hidden.bs.modal', function (e) {
+        // Puedes agregar lógica aquí, por ejemplo, recargar la página
+        // para que la lista de archivos se actualice automáticamente.
+        // window.location.reload(); 
+        // O mejor: realizar otra solicitud AJAX para obtener la lista actualizada de archivos.
+      });
+    });
+
+    document.addEventListener('DOMContentLoaded', function() {
+      const elements = document.querySelectorAll('.upload-card, .files-card');
+      elements.forEach((el, index) => {
+        el.style.animationDelay = `${index * 0.2}s`;
+        el.classList.add('animate-fadeInUp');
+      });
+    });
   </script>
 </head>
 
 <body>
-  <!-- ENCABEZADO O MENU --->
-  <nav class="navbar navbar-expand navbar-dark bg-dark">
+  <nav class="navbar navbar-expand navbar-dark navbar-custom">
     <div class="container-fluid">
-
       <div id="dropdownMenu2" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
         <a class="navbar-brand dropdown-toggle" href="#">
-          <img src="img/favicon_sigma/android-chrome-192x192.png" alt="" width="36" height="36">
+          <img src="img/favicon_sigma/android-chrome-192x192.png" alt="Cloud SIGMA" width="36" height="36">
         </a>
         <div class="dropdown-menu" aria-labelledby="dropdownMenu2">
-          <ul>
-            <li class="user-header">
-              <img src="img/usuario.jpeg" class="img-circle" alt="User Image">
-              <p>
-                ID# <span id="usr_id">8</span> - 
-                Usuario: <span id="usr_nom">PABLO FARIAS</span><br>
-                <small>Miembro desde: <span id="usr_reg">2022-02-18 23:39:00</span></small>
-              </p>
-              <li class="user-body">
-                <div class="row">
-                    <div class="col-xs-4 text-center">
-                        <a href="#">Seguidores</a>
-                    </div>
-                    <div class="col-xs-4 text-center">
-                        <a href="#">UID: 64b06b022c7b9</a>
-                    </div>
-                    <div class="col-xs-4 text-center">
-                        <a href="#">Amigos</a>
-                    </div>
-                </div>
-                <!-- /.row -->
-            </li>
-            <li class="user-footer">
-              <div class="pull-left">
-                  <a href="#" class="btn btn-default btn-flat">Perfil</a>
+          <div class="user-header">
+            <img src="img/usuario.jpeg" class="img-circle" alt="User Image">
+            <p>
+              <strong>ID# <span id="usr_id">8</span></strong><br>
+              <strong>Usuario: <span id="usr_nom">PABLO FARIAS</span></strong><br>
+              <small>Miembro desde: <span id="usr_reg">2022-02-18 23:39:00</span></small>
+            </p>
+          </div>
+          <div class="user-body">
+            <div class="row text-center">
+              <div class="col-4">
+                <a href="#"><i class="fas fa-users me-1"></i>Seguidores</a>
               </div>
-              <div class="pull-right">
-                  <a href="../cloud" class="btn btn-default btn-flat">Cerrar Session</a>
+              <div class="col-4">
+                <a href="#"><i class="fas fa-id-card me-1"></i>UID: 64b06b022c7b9</a>
               </div>
-          </li>
-          </ul>
-          
+              <div class="col-4">
+                <a href="#"><i class="fas fa-user-friends me-1"></i>Amigos</a>
+              </div>
+            </div>
+          </div>
+          <div class="user-footer">
+            <a href="#" class="btn"><i class="fas fa-user me-1"></i>Perfil</a>
+            <a href="../cloud" class="btn"><i class="fas fa-sign-out-alt me-1"></i>Cerrar Sesión</a>
+          </div>
         </div>
       </div>
-      
-      <form class="d-flex">
-        <input class="form-control me-2" type="search" placeholder="Buscar Archivo" aria-label="Search">
-        <button class="btn btn-outline-success" type="submit">Buscar</button>
+
+      <form class="d-flex search-container">
+        <input class="form-control me-2" type="search" placeholder="🔍 Buscar Archivo" aria-label="Search" id="searchInput">
+        <button class="btn btn-search" type="submit">
+          <i class="fas fa-search"></i>
+        </button>
       </form>
     </div>
   </nav>
 
-  <!-- formulario para subir archivos --->
-  <div class="container">
-    <div class="row upload">
-      <div class="col-lg mt-2">
-        <label for="basic-url" class="form-label info">SIGMA Cloud</label>
-        <form class="d-flex" method="POST" action="/upload" enctype="multipart/form-data">
-          <div class="input-group">
-            <input type="file" name="file_toUpload" class="form-control" />
-            <input type="submit" class="btn btn-outline-secondary" />
-          </div>
-        </form>
-      </div>
-      <!-- RENDER formulario para subir archivos --->
-      <div class="col-lg mt-2 files">
-        <div class="row">
-          <table class="table table-dark">
-            <tr>
-              <th>ID</th>
-              <th>Nombre</th>
-              <th>Fecha</th>
-              <th>Accion</th>
-            </tr>
-            <% for (i in data) { %>
-              <tr>
-                <td><span>
-                    <%= data[i].indice%>
-                  </span></td>
-                <td>
-                  <!--a href="<%= data[i].link %>"><%= data[i].archivo %></a-->
-                  <span>
-                    <%= data[i].archivo %>
-                  </span>
-                </td>
-                <td>fecha</td>
-                <td>
-                  <button type="button" name="button" onclick="modal('<%= data[i].archivo %>')">
-                    <i class="fas fa-play"></i>
-                  </button>
-                </td>
-              </tr>
-              <% } %>
-          </table>
+  <div class="container main-container">
+    <div class="row">
+      <div class="col-lg-12">
+        <div class="upload-card">
+          <h1 class="upload-title">
+            <i class="fas fa-cloud-upload-alt me-3"></i>SIGMA Cloud
+          </h1>
+          <form id="uploadForm" class="d-flex" method="POST" action="/upload" enctype="multipart/form-data">
+            <div class="input-group">
+              <input type="file" name="file_toUpload" class="form-control file-input" id="fileInput" />
+              <input type="submit" class="btn btn-upload" value="📤 SUBIR ARCHIVO" />
+            </div>
+          </form>
         </div>
       </div>
-    </div>
 
-    <!-- EDITAR DATOS Y VISUALIZAR archivos --->
-    <div class="modal fade" tabindex="-1" id="myModal">
-      <div class="modal-dialog modal-lg" role="document">
-        <div class="modal-content">
-          <div class="modal-header">
-            <div id="titulo">URL</div>
-            <button class="close" data-dismiss="modal" aria-label="cerar">
-              <span aria-hidden="true">&times;</span>
-            </button>
-          </div>
-          <div class="modal-body">
-            <div id="data">
-              <!--img class="img-fluid rounded" id="img" src="" alt=""-->
+      <div class="col-lg-12">
+        <div class="files-card">
+          <div class="row">
+            <div class="col-12">
+              <table class="table table-custom">
+                <thead>
+                  <tr>
+                    <th><i class="fas fa-hashtag me-2"></i>ID</th>
+                    <th><i class="fas fa-file me-2"></i>Nombre</th>
+                    <th><i class="fas fa-calendar me-2"></i>Fecha</th>
+                    <th><i class="fas fa-cogs me-2"></i>Acción</th>
+                  </tr>
+                </thead>
+                <tbody id="filesTableBody"> <% for (i in data) { %>
+                    <tr>
+                      <td>
+                        <span class="badge bg-primary rounded-pill">
+                          <%= data[i].indice %>
+                        </span>
+                      </td>
+                      <td>
+                        <span class="file-name"> 
+                          <i class="fas fa-file-alt me-2"></i>
+                          <%= data[i].archivo %>
+                        </span>
+                      </td>
+                      <td>
+                        <span class="text-muted">
+                          <i class="fas fa-clock me-1"></i>
+                          fecha
+                        </span>
+                      </td>
+                      <td>
+                        <button type="button" class="btn-action" onclick="modal('<%= data[i].archivo %>')" title="Ver archivo">
+                          <i class="fas fa-play"></i>
+                        </button>
+                      </td>
+                    </tr>
+                    <% } %>
+                </tbody>
+              </table>
             </div>
           </div>
-          <div class="modal-footer">
-            <button class="btn" type="button">
-              <i data-fa-symbol="delete" class="fas fa-trash fa-fw"></i>
-            </button>
-            <button class="btn" type="button">
-              <i data-fa-symbol="edit" class="fas fa-pencil fa-fw"></i>
-            </button>
-            <button class="btn" type="button">
-              <i data-fa-symbol="compartir" class="fa-solid fa-share-nodes"></i>
-            </button>
-            <button class="btn btn-warnigb" type="button" data-dismiss="modal"> Aceptar</button>
-          </div>
         </div>
       </div>
     </div>
-</body>
+  </div>
+
+  <div class="modal fade" tabindex="-1" id="myModal">
+    <div class="modal-dialog modal-lg" role="document">
+      <div class="modal-content">
+        <div class="modal-header">
+          <h5 class="modal-title" id="titulo">Archivo</h5>
+          <button type="button" class="btn-close btn-close-white" data-dismiss="modal" aria-label="Cerrar">
+            <span aria-hidden="true">&times;</span>
+          </button>
+        </div>
+        <div class="modal-body">
+          <div id="data" class="text-center">
+            </div>
+        </div>
+        <div class="modal-footer">
+          <button class="btn" type="button" title="Eliminar">
+            <i class="fas fa-trash"></i>
+          </button>
+          <button class="btn" type="button" title="Editar">
+            <i class="fas fa-edit"></i>
+          </button>
+          <button class="btn" type="button" title="Compartir">
+            <i class="fas fa-share-nodes"></i>
+          </button>
+          <button class="btn" type="button" data-dismiss="modal">
+            <i class="fas fa-check me-2"></i>Aceptar
+          </button>
+        </div>
+      </div>
+    </div>
+  </div>
+
+  <div class="modal fade" tabindex="-1" id="messageModal">
+    <div class="modal-dialog" role="document">
+      <div class="modal-content">
+        <div class="modal-header">
+          <h5 class="modal-title" id="modalTitleMessage"></h5>
+          <button type="button" class="btn-close" data-dismiss="modal" aria-label="Cerrar">
+            <span aria-hidden="true">&times;</span>
+          </button>
+        </div>
+        <div class="modal-body">
+          <p id="modalBodyMessage"></p>
+        </div>
+        <div class="modal-footer">
+          <button type="button" class="btn btn-secondary" data-dismiss="modal" id="modalCloseButton">Cerrar</button>
+        </div>
+      </div>
+    </div>
+  </div>
+  </body>
 
 </html>
\ No newline at end of file