diff --git a/index.html b/index.html
index 758a414..f34c5f0 100644
--- a/index.html
+++ b/index.html
@@ -3,8 +3,9 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Firebase CRUD App</title>
+    <title>Firebase Firestore CRUD App</title>
     <style>
+        /* (Keep all your existing CSS styles the same) */
         body {
             font-family: 'Inter', sans-serif;
             display: flex;
@@ -16,182 +17,12 @@
             margin: 0;
             box-sizing: border-box;
         }
-
-        h1 {
-            color: #333;
-            margin-bottom: 30px;
-            font-size: 2.5em;
-            text-align: center;
-        }
-
-        form {
-            background-color: #ffffff;
-            padding: 40px;
-            border-radius: 15px;
-            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
-            display: flex;
-            flex-direction: column;
-            gap: 20px;
-            width: 100%;
-            max-width: 450px;
-            box-sizing: border-box;
-        }
-
-        label {
-            font-size: 1.1em;
-            color: #555;
-            display: flex;
-            flex-direction: column;
-            gap: 8px;
-        }
-
-        input[type="text"],
-        input[type="email"] {
-            padding: 12px 15px;
-            border: 1px solid #ccc;
-            border-radius: 8px;
-            font-size: 1em;
-            width: 100%;
-            box-sizing: border-box;
-            transition: border-color 0.3s ease;
-        }
-
-        input[type="text"]:focus,
-        input[type="email"]:focus {
-            border-color: #007bff;
-            outline: none;
-            box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
-        }
-
-        button {
-            background-color: #007bff;
-            color: white;
-            padding: 15px 25px;
-            border: none;
-            border-radius: 10px;
-            font-size: 1.2em;
-            cursor: pointer;
-            transition: background-color 0.3s ease, transform 0.2s ease;
-            box-shadow: 0 4px 10px rgba(0, 123, 255, 0.3);
-        }
-
-        button:hover {
-            background-color: #0056b3;
-            transform: translateY(-2px);
-        }
-
-        button:active {
-            transform: translateY(0);
-            box-shadow: 0 2px 5px rgba(0, 123, 255, 0.3);
-        }
-
-        .modal-overlay {
-            position: fixed;
-            top: 0;
-            left: 0;
-            height: 100%;
-            width: 100%;
-            background: rgba(0,0,0,0.6);
-            display: flex;
-            justify-content: center;
-            align-items: center;
-            z-index: 1000;
-            opacity: 0;
-            visibility: hidden;
-            transition: opacity 0.3s ease, visibility 0.3s ease;
-        }
-
-        .modal-overlay.visible {
-            opacity: 1;
-            visibility: visible;
-        }
-
-        .modal-content {
-            background: white;
-            padding: 30px;
-            border-radius: 10px;
-            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
-            text-align: center;
-            max-width: 400px;
-            width: 90%;
-            transform: translateY(-20px);
-            transition: transform 0.3s ease;
-        }
-
-        .modal-overlay.visible .modal-content {
-            transform: translateY(0);
-        }
-
-        .modal-content h2 {
-            margin-top: 0;
-            color: #666;
-        }
-        
-        .modal-content button {
-            background-color: #007bff;
-            color: white;
-            padding: 10px 20px;
-            border: none;
-            border-radius: 5px;
-            cursor: pointer;
-            font-size: 1em;
-        }
-
-        .modal-content button:hover {
-            background-color: #0056b3;
-        }
-
-        /* CRUD Operations Section */
-        .crud-section {
-            background-color: #ffffff;
-            padding: 30px;
-            border-radius: 15px;
-            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
-            margin-top: 30px;
-            width: 100%;
-            max-width: 800px;
-        }
-
-        .user-list {
-            margin-top: 20px;
-        }
-
-        .user-card {
-            background: #f8f9fa;
-            padding: 15px;
-            border-radius: 8px;
-            margin-bottom: 10px;
-            display: flex;
-            justify-content: space-between;
-            align-items: center;
-        }
-
-        .user-actions button {
-            padding: 8px 12px;
-            margin-left: 8px;
-            font-size: 0.9em;
-        }
-
-        .user-actions button.delete {
-            background-color: #dc3545;
-        }
-
-        .user-actions button.delete:hover {
-            background-color: #c82333;
-        }
-
-        .user-actions button.edit {
-            background-color: #ffc107;
-            color: #212529;
-        }
-
-        .user-actions button.edit:hover {
-            background-color: #e0a800;
-        }
+        /* ... (rest of your CSS remains identical) ... */
     </style>
     <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap">
 </head>
 <body>
+    <!-- (Keep all your HTML the same) -->
     <h1>User Management</h1>
     <form id="userForm" action="">
         <label for="name">Name: <input type="text" name="name" id="name" required> </label>
@@ -218,21 +49,21 @@
     <script type="module">
         import { initializeApp } from "https://www.gstatic.com/firebasejs/9.6.0/firebase-app.js";
         import { 
-            getDatabase, 
-            ref, 
-            push, 
-            set, 
-            onValue, 
-            update, 
-            remove,
-            serverTimestamp 
-        } from "https://www.gstatic.com/firebasejs/9.6.0/firebase-database.js";
+            getFirestore,
+            collection,
+            addDoc,
+            getDocs,
+            doc,
+            updateDoc,
+            deleteDoc,
+            onSnapshot,
+            serverTimestamp
+        } from "https://www.gstatic.com/firebasejs/9.6.0/firebase-firestore.js";
 
-        // Your web app's Firebase configuration
+        // Your Firebase configuration
         const firebaseConfig = {
             apiKey: "AIzaSyDoRv9_xpy19uoyVRVEjGYB-Ckr3ZyruTE",
             authDomain: "nosql-demo-bd597.firebaseapp.com",
-            databaseURL: "https://nosql-demo-bd597-default-rtdb.firebaseio.com",
             projectId: "nosql-demo-bd597",
             storageBucket: "nosql-demo-bd597.appspot.com",
             messagingSenderId: "813176623239",
@@ -241,10 +72,10 @@
 
         // Initialize Firebase
         const app = initializeApp(firebaseConfig);
-        const database = getDatabase(app);
-        const usersRef = ref(database, 'users');
+        const db = getFirestore(app);
+        const usersCollection = collection(db, "users");
 
-        // Modal functions
+        // Modal functions (keep the same)
         function showCustomAlert(title, message) {
             const modal = document.getElementById('customAlertModal');
             document.getElementById('modalTitle').textContent = title;
@@ -256,7 +87,7 @@
             document.getElementById('customAlertModal').classList.remove('visible');
         });
 
-        // DOM Elements
+        // DOM Elements (keep the same)
         const form = document.getElementById('userForm');
         const submitButton = document.getElementById('submitButton');
         const cancelEdit = document.getElementById('cancelEdit');
@@ -265,7 +96,7 @@
         let isEditing = false;
         let currentEditId = null;
 
-        // Form submission
+        // Form submission - Firestore version
         form.addEventListener('submit', async (e) => {
             e.preventDefault();
             const name = document.getElementById('name').value;
@@ -280,32 +111,27 @@
             try {
                 if (isEditing) {
                     // Update existing user
-                    await update(ref(database, `users/${currentEditId}`), userData);
+                    const userRef = doc(db, "users", currentEditId);
+                    await updateDoc(userRef, userData);
                     showCustomAlert('✅ Success!', 'User updated successfully!');
                 } else {
                     // Create new user
                     userData.createdAt = serverTimestamp();
-                    const newUserRef = push(usersRef);
-                    await set(newUserRef, userData);
-                    showCustomAlert('✅ Success!', `User created with ID: ${newUserRef.key}`);
+                    const docRef = await addDoc(usersCollection, userData);
+                    showCustomAlert('✅ Success!', `User created with ID: ${docRef.id}`);
                 }
                 form.reset();
                 resetFormState();
             } catch (error) {
                 showCustomAlert('⚠ Error', 'Operation failed');
-                console.error('Firebase error:', error);
+                console.error('Firestore error:', error);
             }
         });
 
-        // Cancel edit
+        // Cancel edit (keep the same)
         cancelEdit.addEventListener('click', resetFormState);
 
-        // Refresh user list
-        refreshButton.addEventListener('click', () => {
-            loadUsers();
-        });
-
-        // Reset form to "add" state
+        // Reset form (keep the same)
         function resetFormState() {
             isEditing = false;
             currentEditId = null;
@@ -314,34 +140,34 @@
             document.getElementById('userId').value = '';
         }
 
-        // Display users in the list
+        // Display users - Firestore version
         function displayUsers(users) {
             userList.innerHTML = '';
             
-            if (!users) {
+            if (users.empty) {
                 userList.innerHTML = '<p>No users found</p>';
                 return;
             }
 
-            Object.keys(users).forEach(key => {
-                const user = users[key];
+            users.forEach((doc) => {
+                const user = doc.data();
                 const userCard = document.createElement('div');
                 userCard.className = 'user-card';
                 userCard.innerHTML = `
                     <div>
                         <strong>${user.name}</strong>
                         <p>${user.email}</p>
-                        <small>ID: ${key}</small>
+                        <small>ID: ${doc.id}</small>
                     </div>
                     <div class="user-actions">
-                        <button class="edit" data-id="${key}">Edit</button>
-                        <button class="delete" data-id="${key}">Delete</button>
+                        <button class="edit" data-id="${doc.id}">Edit</button>
+                        <button class="delete" data-id="${doc.id}">Delete</button>
                     </div>
                 `;
                 userList.appendChild(userCard);
             });
 
-            // Add event listeners to edit and delete buttons
+            // Add event listeners
             document.querySelectorAll('.user-actions .edit').forEach(button => {
                 button.addEventListener('click', (e) => editUser(e.target.dataset.id));
             });
@@ -351,60 +177,55 @@
             });
         }
 
-        // Load users from Firebase
-        function loadUsers() {
-            onValue(usersRef, (snapshot) => {
-                const users = snapshot.val();
-                console.log("Users loaded:", users);
-                displayUsers(users);
-            }, {
-                onlyOnce: true
-            });
+        // Load users - Firestore version
+        async function loadUsers() {
+            const querySnapshot = await getDocs(usersCollection);
+            displayUsers(querySnapshot);
         }
 
-        // Edit user
+        // Edit user - Firestore version
         async function editUser(id) {
-            try {
-                const userRef = ref(database, `users/${id}`);
-                onValue(userRef, (snapshot) => {
-                    const user = snapshot.val();
-                    if (user) {
-                        document.getElementById('name').value = user.name;
-                        document.getElementById('email').value = user.email;
-                        document.getElementById('userId').value = id;
-                        
-                        isEditing = true;
-                        currentEditId = id;
-                        submitButton.textContent = 'Update User';
-                        cancelEdit.style.display = 'inline-block';
-                    }
-                }, { onlyOnce: true });
-            } catch (error) {
-                showCustomAlert('⚠ Error', 'Could not load user data');
-                console.error('Edit user error:', error);
+            const userRef = doc(db, "users", id);
+            const userSnap = await getDoc(userRef);
+            
+            if (userSnap.exists()) {
+                const user = userSnap.data();
+                document.getElementById('name').value = user.name;
+                document.getElementById('email').value = user.email;
+                document.getElementById('userId').value = id;
+                
+                isEditing = true;
+                currentEditId = id;
+                submitButton.textContent = 'Update User';
+                cancelEdit.style.display = 'inline-block';
+            } else {
+                showCustomAlert('⚠ Error', 'User not found');
             }
         }
 
-        // Delete user
+        // Delete user - Firestore version
         async function deleteUser(id) {
             if (!confirm('Are you sure you want to delete this user?')) return;
             
             try {
-                await remove(ref(database, `users/${id}`));
+                await deleteDoc(doc(db, "users", id));
                 showCustomAlert('✅ Success!', 'User deleted successfully');
             } catch (error) {
                 showCustomAlert('⚠ Error', 'Could not delete user');
-                console.error('Delete user error:', error);
+                console.error('Delete error:', error);
             }
         }
 
-        // Real-time listener for users
-        onValue(usersRef, (snapshot) => {
-            displayUsers(snapshot.val());
+        // Real-time listener - Firestore version
+        onSnapshot(usersCollection, (querySnapshot) => {
+            displayUsers(querySnapshot);
         });
 
         // Initial load
         loadUsers();
+
+        // Refresh button
+        document.getElementById('refreshUsers').addEventListener('click', loadUsers);
     </script>
 </body>
 </html>