diff --git a/assets/css/custom.css b/assets/css/custom.css
index 27c25cd..3f33614 100644
--- a/assets/css/custom.css
+++ b/assets/css/custom.css
@@ -1,161 +1,123 @@
-/* Basic Reset & Body Styling */
+
+/* --- FONT --- */
+@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');
+
+/* --- GENERAL --- */
 body {
-    background-color: #f4f7f9;
-    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
-    color: #333;
-    margin: 0;
-    padding: 2rem;
-    display: flex;
-    justify-content: center;
-    align-items: flex-start;
-    min-height: 100vh;
+    font-family: 'Poppins', sans-serif;
+    background-color: #f8f9fa;
+    color: #495057;
 }
 
-/* Main Calculator Container */
+/* --- CALCULATOR --- */
 .calculator-container {
-    background-color: #ffffff;
-    padding: 2.5rem;
-    border-radius: 8px;
-    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
-    width: 100%;
-    max-width: 600px;
+    padding-top: 2rem;
+    padding-bottom: 2rem;
+}
+
+.calculator-card {
+    border: none;
+    border-radius: 1rem;
+    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
+    overflow: hidden;
     transition: all 0.3s ease;
 }
 
-h1 {
-    text-align: center;
-    color: #2c3e50;
-    margin-bottom: 2rem;
-    font-weight: 600;
+.calculator-card:hover {
+    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
+    transform: translateY(-5px);
 }
 
-/* Form Styling */
-.form-group {
-    margin-bottom: 1.5rem;
-}
-
-label {
-    display: block;
-    margin-bottom: 0.5rem;
+.calculator-widget .form-label {
     font-weight: 500;
-    color: #555;
+    color: #343a40;
 }
 
-.input-group {
-    display: flex;
+.calculator-widget .input-group .form-control,
+.calculator-widget .input-group .input-group-text {
+    border-radius: 0.5rem;
 }
 
-.input-group-prepend .input-group-text {
-    background-color: #e9ecef;
-    border: 1px solid #ced4da;
-    border-right: none;
-    padding: 0.5rem 1rem;
-    border-radius: 0.25rem 0 0 0.25rem;
+.calculator-widget .form-control {
+    padding: 1rem;
+    height: auto;
+    border: 1px solid #dee2e6;
 }
 
-input[type="number"],
-select {
-    width: 100%;
-    padding: 0.75rem;
-    border: 1px solid #ced4da;
-    border-radius: 4px;
-    font-size: 1rem;
-    transition: border-color 0.2s ease, box-shadow 0.2s ease;
-}
-
-input[type="number"]:focus,
-select:focus {
-    outline: none;
+.calculator-widget .form-control:focus {
     border-color: #80bdff;
     box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
 }
 
-/* Checkbox Styling */
-.checkbox-group {
-    display: flex;
-    align-items: center;
-    gap: 0.75rem;
-    margin-top: 1rem;
+.calculator-widget .btn-group .btn {
+    padding: 0.75rem 1rem;
+    font-weight: 500;
+    border-radius: 0.5rem !important; /* Override Bootstrap's btn-group radius */
 }
 
-input[type="checkbox"] {
-    width: 1.25em;
-    height: 1.25em;
-}
-
-/* Calculate Button */
-.btn-calculate {
-    width: 100%;
-    padding: 0.85rem;
+.calculator-widget .btn-primary {
+    background-color: #0d6efd;
+    border-color: #0d6efd;
+    padding: 1rem;
     font-size: 1.1rem;
     font-weight: 600;
-    color: #fff;
-    background-color: #007bff;
-    border: none;
-    border-radius: 4px;
-    cursor: pointer;
-    transition: background-color 0.2s ease;
+    border-radius: 0.5rem;
+    transition: background-color 0.2s ease, border-color 0.2s ease;
 }
 
-.btn-calculate:hover {
-    background-color: #0056b3;
+.calculator-widget .btn-primary:hover {
+    background-color: #0b5ed7;
+    border-color: #0a58ca;
 }
 
-/* Result Card */
-.result-card {
-    margin-top: 2rem;
-    background-color: #f8f9fa;
-    padding: 1.5rem;
-    border-radius: 8px;
-    border: 1px solid #e9ecef;
-    display: none; /* Hidden by default */
+/* --- RESULTS --- */
+#results {
+    border-top: 1px solid #e9ecef;
+    padding-top: 1.5rem;
 }
 
-.result-card h3 {
-    margin-top: 0;
-    color: #2c3e50;
-    border-bottom: 2px solid #e0e0e0;
-    padding-bottom: 0.5rem;
-    margin-bottom: 1rem;
+#results h3 {
+    font-weight: 600;
+    color: #343a40;
 }
 
-.result-item {
+#results-summary .result-item {
+    padding: 0.75rem 0;
     display: flex;
     justify-content: space-between;
-    padding: 0.75rem 0;
-    border-bottom: 1px solid #e9ecef;
+    border-bottom: 1px solid #f1f3f5;
 }
 
-.result-item:last-child {
+#results-summary .result-item:last-child {
     border-bottom: none;
 }
 
-.result-item span {
+#results-summary .result-item .label {
     font-weight: 500;
+    color: #6c757d;
 }
 
-.result-item .value {
-    color: #007bff;
+#results-summary .result-item .value {
     font-weight: 600;
+    color: #212529;
+    font-size: 1.1rem;
 }
 
-.result-item.total .value {
-    color: #28a745;
-    font-size: 1.2rem;
+#results-summary .result-item.total .value {
+    color: #198754; /* Bootstrap success color */
+    font-size: 1.5rem;
+    font-weight: 700;
 }
 
-/* Hidden class for dynamic options */
-.hidden {
-    display: none;
-}
 
-/* Footer Links */
+/* --- FOOTER --- */
 .footer-links a {
     color: #6c757d;
     text-decoration: none;
+    transition: color 0.2s ease;
 }
 
 .footer-links a:hover {
     color: #0d6efd;
     text-decoration: underline;
-}
\ No newline at end of file
+}
diff --git a/assets/pasted-20250909-220108-d3c9b032.png b/assets/pasted-20250909-220108-d3c9b032.png
new file mode 100644
index 0000000..489089d
Binary files /dev/null and b/assets/pasted-20250909-220108-d3c9b032.png differ
diff --git a/assets/pasted-20250909-220428-c41305cc.png b/assets/pasted-20250909-220428-c41305cc.png
new file mode 100644
index 0000000..a8c8f0a
Binary files /dev/null and b/assets/pasted-20250909-220428-c41305cc.png differ
diff --git a/index.php b/index.php
index 447c303..9bc912f 100644
--- a/index.php
+++ b/index.php
@@ -4,6 +4,22 @@
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Polish Contract Calculator</title>
+
+    <?php
+        // Dynamic Open Graph tags for social sharing
+        $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
+        $domainName = $_SERVER['HTTP_HOST'];
+        $imageUrl = $protocol . $domainName . '/assets/pasted-20250909-220108-d3c9b032.png';
+        $pageUrl = $protocol . $domainName . $_SERVER['REQUEST_URI'];
+    ?>
+    <meta property="og:title" content="Polish Contract Calculator" />
+    <meta property="og:description" content="Oblicz swoje zarobki dla najpopularniejszych form zatrudnienia." />
+    <meta property="og:type" content="website" />
+    <meta property="og:image" content="<?php echo $imageUrl; ?>" />
+    <meta property="og:url" content="<?php echo $pageUrl; ?>" />
+    <meta name="twitter:card" content="summary_large_image" />
+    <meta name="twitter:image:alt" content="Polish Contract Calculator" />
+
     <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
@@ -12,7 +28,8 @@
 </head>
 <body>
 
-    <main class="container my-5">
+        <div class="calculator-container">
+        <main class="container my-5">
         <div class="row justify-content-center">
             <div class="col-lg-8 col-xl-7">
                 
@@ -21,7 +38,7 @@
                     <p class="text-muted">Oblicz swoje zarobki dla najpopularniejszych form zatrudnienia.</p>
                 </div>
 
-                <div class="card calculator-widget">
+                <div class="card calculator-widget calculator-card">
                     <div class="card-body p-4 p-md-5">
                         
                         <!-- Contract Type Selector -->
@@ -50,7 +67,7 @@
                             <div class="mb-3">
                                 <label for="amount" class="form-label fw-bold">Kwota</label>
                                 <div class="input-group input-group-lg">
-                                    <input type="number" class="form-control" id="amount" placeholder="Np. 10000" required>
+                                    <input type="number" class="form-control" id="income" name="income" placeholder="np. 5000" required>
                                     <span class="input-group-text">PLN</span>
                                 </div>
                             </div>
@@ -93,7 +110,8 @@
                 </div>
             </div>
         </div>
-    </main>
+        </main>
+    </div>
 
     <!-- Bootstrap 5 JS Bundle -->
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>