add dropdown year as AY yyyy formate and seprate css files commit

static/index.css

@@ -11,7 +11,7 @@ body {
     padding: 30px;
     background-color: #ffffff;
     border-radius: 12px;
-    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
 }
 
 h2 {
@@ -52,3 +52,54 @@ form button {
 form button:hover {
     background-color: #0056b3;
 }
+
+input[type="file"] {
+    padding: 10px 12px;
+    border: 1px solid #ccc;
+    border-radius: 6px;
+    font-size: 16px;
+    transition: border-color 0.3s ease;
+}
+
+input[type="file"]:focus {
+    border-color: #007BFF;
+    outline: none;
+}
+
+
+/* Back button styling */
+.back-btn {
+    display: inline-block;
+    margin-bottom: 20px;
+    padding: 10px 18px;
+    background: #6c757d;
+    color: white;
+    font-size: 15px;
+    font-weight: 600;
+    border-radius: 6px;
+    text-decoration: none;
+    transition: background 0.3s ease;
+}
+
+.back-btn:hover {
+    background: #5a6268;
+}
+
+.form-group select {
+    width: 100%;
+    padding: 10px 12px;
+    border: 1px solid #cbd3da;
+    border-radius: 8px;
+    font-size: 16px;
+    background-color: #fdfdfd;
+    height: 40px;
+    cursor: pointer;
+    transition: all 0.25s ease-in-out;
+}
+
+.form-group select:focus {
+    border-color: #007BFF;
+    background: #ffffff;
+    box-shadow: 0 0 8px rgba(0, 123, 255, 0.25);
+    outline: none;
+}