diff --git a/templates/index.html b/templates/index.html
index de5dfd7..ff763b5 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -5,117 +5,479 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>aCloud - File Sharing Service</title>
     <style>
+        :root {
+            --primary-color: #4CAF50;
+            --secondary-color: #45a049;
+            --background-color: #1a1a1a;
+            --text-color: #f0f0f0;
+            --accent-color: #4CAF50;
+            --container-bg: #2a2a2a;
+            --input-bg: #333;
+            --input-border: #4CAF50;
+        }
+
         body {
-            font-family: Arial, sans-serif;
+            font-family: 'Roboto', Arial, sans-serif;
             line-height: 1.6;
             margin: 0;
             padding: 0;
             display: flex;
             flex-direction: column;
             min-height: 100vh;
-            background-color: #1a1a1a;
-            color: #f0f0f0;
+            background-color: var(--background-color);
+            color: var(--text-color);
         }
+
         .container {
             flex: 1;
             display: flex;
             flex-direction: column;
             align-items: center;
-            justify-content: center;
+            justify-content: flex-start;
             padding: 20px;
         }
+
         nav {
-            margin-bottom: 20px;
+            position: absolute;
+            top: 20px;
+            right: 20px;
         }
+
         nav a {
-            color: #4CAF50;
+            color: var(--primary-color);
             text-decoration: none;
             margin: 0 10px;
+            font-weight: 500;
+            transition: color 0.3s ease;
         }
+
+        nav a:hover {
+            color: var(--accent-color);
+        }
+
         .upload-options {
             margin-bottom: 20px;
         }
+
         .upload-options button {
-            background-color: #4CAF50;
+            background-color: var(--primary-color);
             border: none;
             color: white;
             padding: 10px 20px;
             text-align: center;
             text-decoration: none;
             display: inline-block;
-            font-size: 16px;
+            font-size: 14px;
             margin: 4px 2px;
             cursor: pointer;
             border-radius: 4px;
+            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
+            transition: background-color 0.3s ease, box-shadow 0.3s ease;
         }
+
+        .upload-options button:hover {
+            background-color: var(--secondary-color);
+            box-shadow: 0 4px 8px rgba(0,0,0,0.3);
+        }
+
         .upload-form {
             display: none;
-            background-color: #2a2a2a;
-            padding: 20px;
+            background-color: var(--container-bg);
+            padding: 18px;
             border-radius: 8px;
-            max-width: 400px;
+            max-width: 380px;
             width: 100%;
+            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
         }
+
         .upload-form.active {
             display: block;
         }
+
         .upload-form input[type="text"],
         .upload-form input[type="file"],
         .upload-form textarea {
-            width: 100%;
+            width: calc(100% - 22px);
             padding: 10px;
-            margin: 10px 0;
+            margin: 8px 0;
             border-radius: 4px;
-            border: 1px solid #4CAF50;
-            background-color: #333;
-            color: #f0f0f0;
+            border: 1px solid var(--input-border);
+            background-color: var(--input-bg);
+            color: var(--text-color);
+            font-size: 14px;
+            transition: border-color 0.3s ease, box-shadow 0.3s ease;
         }
+
+        .upload-form input[type="text"]:focus,
+        .upload-form input[type="file"]:focus,
+        .upload-form textarea:focus {
+            outline: none;
+            border-color: var(--accent-color);
+            box-shadow: 0 0 5px rgba(76, 175, 80, 0.5);
+        }
+
         .upload-form button {
-            background-color: #4CAF50;
+            background-color: var(--primary-color);
             color: white;
             padding: 10px 20px;
             border: none;
             border-radius: 4px;
             cursor: pointer;
+            font-size: 14px;
+            font-weight: 500;
+            text-transform: uppercase;
+            letter-spacing: 0.5px;
+            transition: background-color 0.3s ease, box-shadow 0.3s ease;
         }
+
+        .upload-form button:hover {
+            background-color: var(--secondary-color);
+            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
+        }
+
         .result {
             margin-top: 10px;
-            color: #4CAF50;
+            color: var(--primary-color);
+            font-weight: 500;
         }
+
         .footer {
             text-align: center;
             padding: 10px;
-            background-color: #2a2a2a;
-            color: #f0f0f0;
+            background-color: var(--container-bg);
+            color: var(--text-color);
+            font-size: 12px;
         }
+
         .typewriter-container {
-            font-family: monospace;
+            font-family: 'Roboto Mono', monospace;
             white-space: pre-wrap;
             overflow: hidden;
             font-size: 1.2em;
             margin-bottom: 20px;
+            text-align: center;
+            display: flex;
+            justify-content: center;
+            align-items: flex-start;
+            height: 100px;
+            position: relative;
         }
+
         .cursor {
             display: inline-block;
             width: 10px;
             height: 20px;
-            background-color: #4CAF50;
+            background-color: var(--primary-color);
             animation: blink 0.7s infinite;
+            position: absolute;
+            bottom: 0;
         }
+
         @keyframes blink {
             0% { opacity: 0; }
             50% { opacity: 1; }
             100% { opacity: 0; }
         }
+
+        #settingsButton {
+            position: absolute;
+            top: 20px;
+            left: 20px;
+            background-color: var(--primary-color);
+            color: white;
+            border: none;
+            padding: 10px 15px;
+            border-radius: 4px;
+            cursor: pointer;
+            font-size: 14px;
+            font-weight: 500;
+            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
+            transition: background-color 0.3s ease, box-shadow 0.3s ease;
+        }
+
+        #settingsButton:hover {
+            background-color: var(--secondary-color);
+            box-shadow: 0 4px 8px rgba(0,0,0,0.3);
+        }
+
+        #settingsMenu {
+            display: none;
+            position: absolute;
+            top: 60px;
+            left: 20px;
+            background-color: var(--container-bg);
+            border-radius: 4px;
+            padding: 10px;
+            z-index: 1000;
+            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
+        }
+
+        #settingsMenu button {
+            display: block;
+            width: 100%;
+            padding: 8px 10px;
+            margin: 5px 0;
+            background-color: var(--primary-color);
+            color: white;
+            border: none;
+            border-radius: 4px;
+            cursor: pointer;
+            font-size: 14px;
+            font-weight: 500;
+            transition: background-color 0.3s ease;
+        }
+
+        #settingsMenu button:hover {
+            background-color: var(--secondary-color);
+        }
+
+        body.default-dark {
+            --primary-color: #4CAF50;
+            --secondary-color: #45a049;
+            --background-color: #1a1a1a;
+            --text-color: #f0f0f0;
+            --accent-color: #4CAF50;
+            --container-bg: #2a2a2a;
+            --input-bg: #333;
+            --input-border: #4CAF50;
+        }
+
+        body.default-light {
+            --primary-color: #4CAF50;
+            --secondary-color: #45a049;
+            --background-color: #f0f0f0;
+            --text-color: #333333;
+            --accent-color: #4CAF50;
+            --container-bg: #ffffff;
+            --input-bg: #e0e0e0;
+            --input-border: #4CAF50;
+        }
+
+        body.solarized-dark {
+            --primary-color: #b58900;
+            --secondary-color: #859900;
+            --background-color: #002b36;
+            --text-color: #839496;
+            --accent-color: #cb4b16;
+            --container-bg: #073642;
+            --input-bg: #094352;
+            --input-border: #b58900;
+        }
+
+        body.blue-dark {
+            --primary-color: #3498db;
+            --secondary-color: #2980b9;
+            --background-color: #34495e;
+            --text-color: #ecf0f1;
+            --accent-color: #e74c3c;
+            --container-bg: #2c3e50;
+            --input-bg: #465669;
+            --input-border: #3498db;
+        }
+
+        body.purple-dark {
+            --primary-color: #9b59b6;
+            --secondary-color: #8e44ad;
+            --background-color: #4a235a;
+            --text-color: #ecf0f1;
+            --accent-color: #f1c40f;
+            --container-bg: #5b2c6f;
+            --input-bg: #6c3483;
+            --input-border: #9b59b6;
+        }
+
+        body.red-dark {
+            --primary-color: #e74c3c;
+            --secondary-color: #c0392b;
+            --background-color: #641e16;
+            --text-color: #ecf0f1;
+            --accent-color: #f39c12;
+            --container-bg: #7b241c;
+            --input-bg: #922b21;
+            --input-border: #e74c3c;
+        }
+
+        body.green-light {
+            --primary-color: #2ecc71;
+            --secondary-color: #27ae60;
+            --background-color: #e8f8f5;
+            --text-color: #1e8449;
+            --accent-color: #e67e22;
+            --container-bg: #d1f2eb;
+            --input-bg: #a3e4d7;
+            --input-border: #2ecc71;
+        }
+
+        body.orange-dark {
+            --primary-color: #e67e22;
+            --secondary-color: #d35400;
+            --background-color: #6e2c00;
+            --text-color: #fbeee6;
+            --accent-color: #3498db;
+            --container-bg: #873600;
+            --input-bg: #a04000;
+            --input-border: #e67e22;
+        }
+
+        body.pink-light {
+            --primary-color: #e84393;
+            --secondary-color: #fd79a8;
+            --background-color: #ffeef8;
+            --text-color: #8e44ad;
+            --accent-color: #00cec9;
+            --container-bg: #fad7f0;
+            --input-bg: #f8c0e0;
+            --input-border: #e84393;
+        }
+
+        body.pastel-light {
+            --primary-color: #ffb3ba;
+            --secondary-color: #bae1ff;
+            --background-color: #ffffba;
+            --text-color: #555555;
+            --accent-color: #baffc9;
+            --container-bg: #ffdfba;
+            --input-bg: #ffffba;
+            --input-border: #ffb3ba;
+        }
+
+
+
+        body.forest {
+            --primary-color: #2ecc71;
+            --secondary-color: #27ae60;
+            --background-color: #1e3a1e;
+            --text-color: #e0e0e0;
+            --accent-color: #f1c40f;
+            --container-bg: #2c532c;
+            --input-bg: #3a6c3a;
+            --input-border: #2ecc71;
+        }
+
+        body.ocean {
+            --primary-color: #3498db;
+            --secondary-color: #2980b9;
+            --background-color: #0c2d48;
+            --text-color: #ecf0f1;
+            --accent-color: #e67e22;
+            --container-bg: #1a4a72;
+            --input-bg: #28679c;
+            --input-border: #3498db;
+        }
+
+        body.sunset {
+            --primary-color: #ff7f50;
+            --secondary-color: #ff6347;
+            --background-color: #4a0e1c;
+            --text-color: #ffd700;
+            --accent-color: #ff4500;
+            --container-bg: #721422;
+            --input-bg: #9a1a2c;
+            --input-border: #ff7f50;
+        }
+
+        body.retro {
+            --primary-color: #33cc33;
+            --secondary-color: #66ff66;
+            --background-color: #000000;
+            --text-color: #33cc33;
+            --accent-color: #ffff00;
+            --container-bg: #001100;
+            --input-bg: #002200;
+            --input-border: #33cc33;
+        }
+
+        body.desert {
+            --primary-color: #d2691e;
+            --secondary-color: #b8860b;
+            --background-color: #f4a460;
+            --text-color: #8b4513;
+            --accent-color: #ff8c00;
+            --container-bg: #deb887;
+            --input-bg: #ffdab9;
+            --input-border: #d2691e;
+        }
+
+        body.arctic {
+            --primary-color: #87cefa;
+            --secondary-color: #1e90ff;
+            --background-color: #f0f8ff;
+            --text-color: #4682b4;
+            --accent-color: #00bfff;
+            --container-bg: #e6f3ff;
+            --input-bg: #f0f8ff;
+            --input-border: #87cefa;
+        }
+
+        body.volcanic {
+            --primary-color: #ff4500;
+            --secondary-color: #ff6347;
+            --background-color: #8b0000;
+            --text-color: #ffd700;
+            --accent-color: #ff8c00;
+            --container-bg: #a52a2a;
+            --input-bg: #b22222;
+            --input-border: #ff4500;
+        }
+
+        body.space {
+            --primary-color: #4b0082;
+            --secondary-color: #8a2be2;
+            --background-color: #191970;
+            --text-color: #e6e6fa;
+            --accent-color: #9370db;
+            --container-bg: #483d8b;
+            --input-bg: #6a5acd;
+            --input-border: #4b0082;
+        }
+
+        body.autumn {
+            --primary-color: #b8860b;
+            --secondary-color: #cd853f;
+            --background-color: #8b4513;
+            --text-color: #ffd700;
+            --accent-color: #ff8c00;
+            --container-bg: #d2691e;
+            --input-bg: #deb887;
+            --input-border: #b8860b;
+        }
     </style>
 </head>
 <body>
     <div class="container">
         <nav>
-            <a href="{{ url_for('login') }}">Login</a>
-            <a href="{{ url_for('register') }}">Register</a>
+            {% if user %}
+                <a href="{{ url_for('user_files', username=user.username) }}">View Dashboard</a>
+                <a href="{{ url_for('logout') }}">Logout</a>
+            {% else %}
+                <a href="{{ url_for('login') }}">Login</a>
+                <a href="{{ url_for('register') }}">Register</a>
+            {% endif %}
         </nav>
 
+        <button id="settingsButton">⚙️ Settings</button>
+        <div id="settingsMenu" style="display: none;">
+            <button onclick="setTheme('default-dark')">Default Dark</button>
+            <button onclick="setTheme('default-light')">Default Light</button>
+            <button onclick="setTheme('solarized-dark')">Solarized Dark</button>
+            <button onclick="setTheme('blue-dark')">Blue Dark</button>
+            <button onclick="setTheme('purple-dark')">Purple Dark</button>
+            <button onclick="setTheme('red-dark')">Red Dark</button>
+            <button onclick="setTheme('green-light')">Green Light</button>
+            <button onclick="setTheme('orange-dark')">Orange Dark</button>
+            <button onclick="setTheme('pink-light')">Pink Light</button>
+            <button onclick="setTheme('pastel-light')">Pastel Light</button>
+            <button onclick="setTheme('forest')">Forest</button>
+            <button onclick="setTheme('ocean')">Ocean</button>
+            <button onclick="setTheme('sunset')">Sunset</button>
+            <button onclick="setTheme('retro')">Retro</button>
+            <button onclick="setTheme('desert')">Desert</button>
+            <button onclick="setTheme('arctic')">Arctic</button>
+            <button onclick="setTheme('volcanic')">Volcanic</button>
+            <button onclick="setTheme('space')">Space</button>
+            <button onclick="setTheme('autumn')">Autumn</button>
+        </div>
+
         <div class="typewriter-container">
             <span id="typewriter-text"></span><span id="cursor" class="cursor"></span>
         </div>
@@ -123,7 +485,6 @@
         <div class="upload-options">
             <button onclick="showForm('text')">Upload Text</button>
             <button onclick="showForm('file')">Upload File</button>
-            <button onclick="showForm('folder')">Upload Folder</button>
             <button onclick="showForm('url')">Shorten URL</button>
         </div>
         <div id="uploadFormContainer">
@@ -143,14 +504,6 @@
                 </form>
                 <div id="fileResult" class="result"></div>
             </div>
-            <div id="folderForm" class="upload-form">
-                <h2>Upload Folder</h2>
-                <form enctype="multipart/form-data">
-                    <input type="file" name="file" webkitdirectory directory />
-                    <button type="button" onclick="uploadFolder()">Upload Folder</button>
-                </form>
-                <div id="folderResult" class="result"></div>
-            </div>
             <div id="urlForm" class="upload-form">
                 <h2>Shorten URL</h2>
                 <form>
@@ -199,7 +552,6 @@
         }
 
         function updateCursorPosition() {
-
             const textRect = typewriterTextElement.getBoundingClientRect();
             cursorElement.style.left = (textRect.width + textRect.left - cursorElement.offsetWidth) + 'px';
         }
@@ -207,9 +559,19 @@
         typeMessage(message1, function() {
             typeMessage(message2);
         });
-    });;
 
 
+        const settingsButton = document.getElementById('settingsButton');
+        const settingsMenu = document.getElementById('settingsMenu');
+        settingsButton.addEventListener('click', function() {
+            settingsMenu.style.display = settingsMenu.style.display === 'none' ? 'block' : 'none';
+        });
+    });
+
+    function setTheme(theme) {
+        document.body.className = theme;
+    }
+
     document.getElementById('uploadForm').onsubmit = function(e) {
         e.preventDefault();
         var formData = new FormData(this);
@@ -247,48 +609,45 @@
         fetch('/upload/pastebin', {
             method: 'POST',
             headers: {
-                'Content-Type': 'application/x-www-form-urlencoded',
+                'Content-Type': 'application/json',
             },
-            body: new URLSearchParams({ content }),
+            body: JSON.stringify({ content: content }),
         })
         .then(response => response.json())
         .then(data => {
-            document.getElementById('textResult').innerHTML = `Text uploaded. Access it <a href="/${data.vanity}">here</a>.`;
+            if (data.success) {
+                const simpleUrl = `${window.location.origin}/${data.vanity}`;
+                document.getElementById('textResult').innerHTML = `Pastebin created. Access it <a href="${simpleUrl}">${simpleUrl}</a>`;
+            } else {
+                document.getElementById('textResult').innerHTML = `Error: ${data.error}`;
+            }
+        })
+        .catch(error => {
+            console.error('Error:', error);
+            document.getElementById('textResult').innerHTML = `An error occurred: ${error}`;
         });
     }
 
     function uploadFile() {
         const formData = new FormData();
-        formData.append('file', document.querySelector('#fileForm input[type="file"]').files[0]);
+        const fileInput = document.querySelector('#fileForm input[type="file"]');
+        formData.append('file', fileInput.files[0]);
         fetch('/upload/file', {
             method: 'POST',
             body: formData,
         })
         .then(response => response.json())
         .then(data => {
-            document.getElementById('fileResult').innerHTML = `File uploaded. Download it <a href="/download/${data.vanity}">here</a>.`;
-        });
-    }
-
-    function uploadFolder() {
-        const files = document.querySelector('#folderForm input[type="file"]').files;
-        if (files.length === 0) {
-            alert('Please select a folder.');
-            return;
-        }
-
-        const formData = new FormData();
-        for (const file of files) {
-            formData.append('file', file);
-        }
-
-        fetch('/upload/folder', {
-            method: 'POST',
-            body: formData,
+            if (data.success) {
+                const simpleUrl = `${window.location.origin}/${data.vanity}`;
+                document.getElementById('fileResult').innerHTML = `File uploaded. Access it <a href="${simpleUrl}">${simpleUrl}</a>`;
+            } else {
+                document.getElementById('fileResult').innerHTML = `Error: ${data.error}`;
+            }
         })
-        .then(response => response.json())
-        .then(data => {
-            document.getElementById('folderResult').innerHTML = `Folder uploaded. View its contents <a href="/${data.vanity}">here</a>.`;
+        .catch(error => {
+            console.error('Error:', error);
+            document.getElementById('fileResult').innerHTML = `An error occurred: ${error}`;
         });
     }
 
@@ -297,13 +656,21 @@
         fetch('/shorten', {
             method: 'POST',
             headers: {
-                'Content-Type': 'application/x-www-form-urlencoded',
+                'Content-Type': 'application/json',
             },
-            body: new URLSearchParams({ url }),
+            body: JSON.stringify({ url: url }),
         })
         .then(response => response.json())
         .then(data => {
-            document.getElementById('urlResult').innerHTML = `URL shortened. Access it <a href="/${data.vanity}">here</a>.`;
+            if (data.success) {
+                document.getElementById('urlResult').innerHTML = `URL shortened. Access it <a href="${data.short_url}">${data.short_url}</a>`;
+            } else {
+                document.getElementById('urlResult').innerHTML = `Error: ${data.error}`;
+            }
+        })
+        .catch(error => {
+            console.error('Error:', error);
+            document.getElementById('urlResult').innerHTML = `An error occurred: ${error}`;
         });
     }
     </script>