diff --git a/style.css b/style.css
new file mode 100644
index 0000000..170f252
--- /dev/null
+++ b/style.css
@@ -0,0 +1,49 @@
+body {
+    font-family: Arial, sans-serif;
+    background-color: #f0f2f5;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    height: 100vh;
+    margin: 0;
+}
+
+.card {
+    background: white;
+    padding: 30px;
+    border-radius: 12px;
+    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
+    text-align: center;
+    max-width: 400px;
+}
+
+#css-status {
+    color: #2ecc71;
+    font-weight: bold;
+}
+
+button {
+    background-color: #3498db;
+    color: white;
+    border: none;
+    padding: 10px 20px;
+    font-size: 16px;
+    border-radius: 6px;
+    cursor: pointer;
+    margin-top: 15px;
+    transition: background 0.2s;
+}
+
+button:hover {
+    background-color: #2980b9;
+}
+
+.hidden {
+    display: none;
+}
+
+#js-status {
+    color: #3498db;
+    font-weight: bold;
+    margin-top: 15px;
+}