diff --git a/add_contact.php b/add_contact.php
new file mode 100644
index 0000000..dbb109e
--- /dev/null
+++ b/add_contact.php
@@ -0,0 +1,23 @@
+<?php
+require_once 'db/config.php';
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $name = $_POST['name'] ?? '';
+    $email = $_POST['email'] ?? '';
+    $phone = $_POST['phone'] ?? '';
+
+    if (!empty($name)) {
+        try {
+            $pdo = db();
+            $stmt = $pdo->prepare("INSERT INTO contacts (name, email, phone) VALUES (?, ?, ?)");
+            $stmt->execute([$name, $email, $phone]);
+        } catch (PDOException $e) {
+            // In a real app, you'd log this error.
+            // For now, we'll just ignore it for this simple example.
+        }
+    }
+}
+
+header('Location: index.php');
+exit;
+?>
\ No newline at end of file
diff --git a/assets/css/custom.css b/assets/css/custom.css
new file mode 100644
index 0000000..4d0296e
--- /dev/null
+++ b/assets/css/custom.css
@@ -0,0 +1,15 @@
+body {
+    background-color: #F9FAFB;
+    font-family: 'Inter', sans-serif;
+}
+:root {
+    --primary-color: #4F46E5;
+    --secondary-color: #10B981;
+    --background-color: #F9FAFB;
+    --surface-color: #FFFFFF;
+    --text-color: #111827;
+}
+.btn-primary {
+    background-color: var(--primary-color);
+    border-color: var(--primary-color);
+}
diff --git a/assets/js/main.js b/assets/js/main.js
new file mode 100644
index 0000000..9b82809
--- /dev/null
+++ b/assets/js/main.js
@@ -0,0 +1,2 @@
+
+// This file can be used for custom JavaScript
diff --git a/index.php b/index.php
index 7205f3d..83a0ed8 100644
--- a/index.php
+++ b/index.php
@@ -4,147 +4,199 @@ declare(strict_types=1);
 @error_reporting(E_ALL);
 @date_default_timezone_set('UTC');
 
-$phpVersion = PHP_VERSION;
-$now = date('Y-m-d H:i:s');
+require_once 'db/config.php';
+
+// Create contacts table if it doesn't exist
+try {
+    $pdo = db();
+    $pdo->exec("CREATE TABLE IF NOT EXISTS contacts (
+        id INT AUTO_INCREMENT PRIMARY KEY,
+        name VARCHAR(255) NOT NULL,
+        email VARCHAR(255),
+        phone VARCHAR(50),
+        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
+    )");
+} catch (PDOException $e) {
+    // In a real app, you'd log this error.
+    die("Could not connect to the database and create table.");
+}
+
+$contacts = [];
+try {
+    $pdo = db();
+    $stmt = $pdo->query("SELECT id, name, email, phone, created_at FROM contacts ORDER BY created_at DESC");
+    $contacts = $stmt->fetchAll(PDO::FETCH_ASSOC);
+} catch (PDOException $e) {
+    // In a real app, you'd log this error.
+}
+
+$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? 'Optera CRM';
+$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
+
 ?>
 <!doctype html>
 <html lang="en">
 <head>
-  <meta charset="utf-8" />
-  <meta name="viewport" content="width=device-width, initial-scale=1" />
-  <title>New Style</title>
-<?php
-// Read project preview data from environment
-$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? '';
-$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
-?>
-<?php if ($projectDescription): ?>
-  <!-- Meta description -->
-  <meta name="description" content='<?= htmlspecialchars($projectDescription) ?>' />
-  <!-- Open Graph meta tags -->
-  <meta property="og:description" content="<?= htmlspecialchars($projectDescription) ?>" />
-  <!-- Twitter meta tags -->
-  <meta property="twitter:description" content="<?= htmlspecialchars($projectDescription) ?>" />
-<?php endif; ?>
-<?php if ($projectImageUrl): ?>
-  <!-- Open Graph image -->
-  <meta property="og:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
-  <!-- Twitter image -->
-  <meta property="twitter:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
-<?php endif; ?>
-  <link rel="preconnect" href="https://fonts.googleapis.com">
-  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;700&display=swap" rel="stylesheet">
-  <style>
-    :root {
-      --bg-color-start: #6a11cb;
-      --bg-color-end: #2575fc;
-      --text-color: #ffffff;
-      --card-bg-color: rgba(255, 255, 255, 0.01);
-      --card-border-color: rgba(255, 255, 255, 0.1);
-    }
-    body {
-      margin: 0;
-      font-family: 'Inter', sans-serif;
-      background: linear-gradient(45deg, var(--bg-color-start), var(--bg-color-end));
-      color: var(--text-color);
-      display: flex;
-      justify-content: center;
-      align-items: center;
-      min-height: 100vh;
-      text-align: center;
-      overflow: hidden;
-      position: relative;
-    }
-    body::before {
-      content: '';
-      position: absolute;
-      top: 0;
-      left: 0;
-      width: 100%;
-      height: 100%;
-      background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><path d="M-10 10L110 10M10 -10L10 110" stroke-width="1" stroke="rgba(255,255,255,0.05)"/></svg>');
-      animation: bg-pan 20s linear infinite;
-      z-index: -1;
-    }
-    @keyframes bg-pan {
-      0% { background-position: 0% 0%; }
-      100% { background-position: 100% 100%; }
-    }
-    main {
-      padding: 2rem;
-    }
-    .card {
-      background: var(--card-bg-color);
-      border: 1px solid var(--card-border-color);
-      border-radius: 16px;
-      padding: 2rem;
-      backdrop-filter: blur(20px);
-      -webkit-backdrop-filter: blur(20px);
-      box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
-    }
-    .loader {
-      margin: 1.25rem auto 1.25rem;
-      width: 48px;
-      height: 48px;
-      border: 3px solid rgba(255, 255, 255, 0.25);
-      border-top-color: #fff;
-      border-radius: 50%;
-      animation: spin 1s linear infinite;
-    }
-    @keyframes spin {
-      from { transform: rotate(0deg); }
-      to   { transform: rotate(360deg); }
-    }
-    .hint {
-      opacity: 0.9;
-    }
-    .sr-only {
-      position: absolute;
-      width: 1px; height: 1px;
-      padding: 0; margin: -1px;
-      overflow: hidden;
-      clip: rect(0, 0, 0, 0);
-      white-space: nowrap; border: 0;
-    }
-    h1 {
-      font-size: 3rem;
-      font-weight: 700;
-      margin: 0 0 1rem;
-      letter-spacing: -1px;
-    }
-    p {
-      margin: 0.5rem 0;
-      font-size: 1.1rem;
-    }
-    code {
-      background: rgba(0,0,0,0.2);
-      padding: 2px 6px;
-      border-radius: 4px;
-      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
-    }
-    footer {
-      position: absolute;
-      bottom: 1rem;
-      font-size: 0.8rem;
-      opacity: 0.7;
-    }
-  </style>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>Optera CRM</title>
+    
+    <meta name="description" content="<?= htmlspecialchars($projectDescription) ?>" />
+    <meta property="og:description" content="<?= htmlspecialchars($projectDescription) ?>" />
+    <meta property="twitter:description" content="<?= htmlspecialchars($projectDescription) ?>" />
+    <?php if ($projectImageUrl): ?>
+    <meta property="og:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
+    <meta property="twitter:image" content="<?= htmlspecialchars($projectImageUrl) ?>" />
+    <?php endif; ?>
+
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link rel="preconnect" href="https://fonts.googleapis.com">
+    <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap" rel="stylesheet">
+    <link rel="stylesheet" href="assets/css/custom.css?v=<?php echo time(); ?>">
+    <style>
+        body {
+            display: flex;
+            height: 100vh;
+            overflow: hidden;
+        }
+        .sidebar {
+            width: 280px;
+            background-color: var(--surface-color);
+            border-right: 1px solid #e5e7eb;
+            padding: 1.5rem;
+            display: flex;
+            flex-direction: column;
+        }
+        .main-content {
+            flex-grow: 1;
+            overflow-y: auto;
+            padding: 2rem;
+            background-color: var(--background-color);
+        }
+        .sidebar .nav-link {
+            color: #374151;
+            font-weight: 500;
+        }
+        .sidebar .nav-link.active, .sidebar .nav-link:hover {
+            color: var(--primary-color);
+            background-color: #e0e7ff;
+        }
+        .sidebar .nav-link svg {
+            margin-right: 0.75rem;
+            width: 24px;
+            height: 24px;
+        }
+    </style>
 </head>
 <body>
-  <main>
-    <div class="card">
-      <h1>Analyzing your requirements and generating your website…</h1>
-      <div class="loader" role="status" aria-live="polite" aria-label="Applying initial changes">
-        <span class="sr-only">Loading…</span>
-      </div>
-      <p class="hint"><?= ($_SERVER['HTTP_HOST'] ?? '') === 'appwizzy.com' ? 'AppWizzy' : 'Flatlogic' ?> AI is collecting your requirements and applying the first changes.</p>
-      <p class="hint">This page will update automatically as the plan is implemented.</p>
-      <p>Runtime: PHP <code><?= htmlspecialchars($phpVersion) ?></code> — UTC <code><?= htmlspecialchars($now) ?></code></p>
+
+<div class="sidebar">
+    <h1 class="h4 mb-4">Optera CRM</h1>
+    <ul class="nav flex-column nav-pills">
+        <li class="nav-item mb-2">
+            <a class="nav-link d-flex align-items-center" href="#">
+                <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="size-6">
+                  <path stroke-linecap="round" stroke-linejoin="round" d="m2.25 12 8.954-8.955c.44-.439 1.152-.439 1.591 0L21.75 12M4.5 9.75v10.125c0 .621.504 1.125 1.125 1.125H9.75v-4.875c0-.621.504-1.125 1.125-1.125h2.25c.621 0 1.125.504 1.125 1.125V21h4.125c.621 0 1.125-.504 1.125-1.125V9.75M8.25 21h8.25" />
+                </svg>
+                Dashboard
+            </a>
+        </li>
+        <li class="nav-item mb-2">
+            <a class="nav-link d-flex align-items-center active" href="#">
+                <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="size-6">
+                  <path stroke-linecap="round" stroke-linejoin="round" d="M15 19.128a9.38 9.38 0 0 0 2.625.372 9.337 9.337 0 0 0 4.121-2.438c.155-.155.293-.31.428-.472a9.349 9.349 0 0 0-4.549-2.438c-.472.585-.92 1.252-1.314 1.995a9.344 9.344 0 0 0-2.625.372m-5.625 0a9.38 9.38 0 0 1-2.625-.372A9.337 9.337 0 0 1 3.879 15.2c-.155.155-.293.31-.428.472a9.349 9.349 0 0 1 4.549 2.438c.472-.585.92-1.252 1.314-1.995.043.03.085.058.128.085a9.344 9.344 0 0 1 2.625.372M8.25 12.75a3.375 3.375 0 1 1 7.5 0 3.375 3.375 0 0 1-7.5 0ZM12 15.75a3.375 3.375 0 1 1 0-6.75 3.375 3.375 0 0 1 0 6.75Z" />
+                </svg>
+                Contacts
+            </a>
+        </li>
+        <li class="nav-item mb-2"><a class="nav-link d-flex align-items-center" href="#">
+            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" >
+              <path stroke-linecap="round" stroke-linejoin="round" d="M3.75 21h16.5M4.5 3h15M5.25 3v18m13.5-18v18M9 6.75h6M9 12h6m-6 5.25h6M5.25 6h.008v.008H5.25V6Zm.75 0h.008v.008H6V6Zm.75 0h.008v.008H6.75V6Zm.75 0h.008v.008H7.5V6Zm.75 0h.008v.008H8.25V6Zm.75 0h.008v.008H9V6Zm.75 0h.008v.008H9.75V6Zm.75 0h.008v.008H10.5V6Zm.75 0h.008v.008H11.25V6Zm.75 0h.008v.008H12V6Zm.75 0h.008v.008H12.75V6Zm.75 0h.008v.008H13.5V6Zm.75 0h.008v.008H14.25V6Zm.75 0h.008v.008H15V6Zm.75 0h.008v.008H15.75V6Zm.75 0h.008v.008H16.5V6Zm.75 0h.008v.008H17.25V6Zm.75 0h.008v.008H18V6Zm.75 0h.008v.008H18.75V6Z" />
+            </svg>
+            Companies</a></li>
+        <li class="nav-item mb-2"><a class="nav-link d-flex align-items-center" href="#">
+            <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor">
+              <path stroke-linecap="round" stroke-linejoin="round" d="M2.25 18 9 11.25l4.306 4.306a11.95 11.95 0 0 1 5.814-5.518l2.74-1.22m0 0-5.94-2.281m5.94 2.28-2.28 5.941" />
+            </svg>
+            Deals</a></li>
+    </ul>
+</div>
+
+<div class="main-content">
+    <div class="d-flex justify-content-between align-items-center mb-4">
+        <h2 class="h3">Contacts</h2>
+        <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#addContactModal">Add Contact</button>
     </div>
-  </main>
-  <footer>
-    Page updated: <?= htmlspecialchars($now) ?> (UTC)
-  </footer>
+
+    <div class="card border-0 shadow-sm">
+        <div class="card-body">
+            <table class="table table-hover">
+                <thead>
+                    <tr>
+                        <th>Name</th>
+                        <th>Email</th>
+                        <th>Phone</th>
+                        <th>Created At</th>
+                    </tr>
+                </thead>
+                <tbody>
+                    <?php if (empty($contacts)): ?>
+                        <tr>
+                            <td colspan="4" class="text-center py-5">
+                                <p class="mb-2">No contacts yet.</p>
+                                <button class="btn btn-sm btn-primary" data-bs-toggle="modal" data-bs-target="#addContactModal">Add your first contact</button>
+                            </td>
+                        </tr>
+                    <?php else: ?>
+                        <?php foreach ($contacts as $contact): ?>
+                            <tr>
+                                <td><?= htmlspecialchars($contact['name']) ?></td>
+                                <td><?= htmlspecialchars($contact['email']) ?></td>
+                                <td><?= htmlspecialchars($contact['phone']) ?></td>
+                                <td><?= htmlspecialchars((new DateTime($contact['created_at']))->format('M j, Y')) ?></td>
+                            </tr>
+                        <?php endforeach; ?>
+                    <?php endif; ?>
+                </tbody>
+            </table>
+        </div>
+    </div>
+</div>
+
+<!-- Add Contact Modal -->
+<div class="modal fade" id="addContactModal" tabindex="-1" aria-labelledby="addContactModalLabel" aria-hidden="true">
+  <div class="modal-dialog">
+    <div class="modal-content">
+      <div class="modal-header">
+        <h5 class="modal-title" id="addContactModalLabel">Add New Contact</h5>
+        <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
+      </div>
+      <form action="add_contact.php" method="POST">
+          <div class="modal-body">
+              <div class="mb-3">
+                <label for="name" class="form-label">Name</label>
+                <input type="text" class="form-control" id="name" name="name" required>
+              </div>
+              <div class="mb-3">
+                <label for="email" class="form-label">Email address</label>
+                <input type="email" class="form-control" id="email" name="email">
+              </div>
+              <div class="mb-3">
+                <label for="phone" class="form-label">Phone</label>
+                <input type="text" class="form-control" id="phone" name="phone">
+              </div>
+          </div>
+          <div class="modal-footer">
+            <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button>
+            <button type="submit" class="btn btn-primary">Save Contact</button>
+          </div>
+      </form>
+    </div>
+  </div>
+</div>
+
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
+<script src="assets/js/main.js?v=<?php echo time(); ?>"></script>
 </body>
-</html>
+</html>
\ No newline at end of file
