Cập nhật avatar và chỉnh sửa thông tin người dùng

frontend/css/style.css

@@ -422,6 +422,49 @@ html, body {
     color: #ccc;
 }
 
+/* Profile Styles */
+.profile-header-edit {
+    display: flex;
+    justify-content: center;
+    margin-bottom: 25px;
+}
+
+.avatar-edit-container {
+    position: relative;
+    width: 100px;
+    height: 100px;
+}
+
+.avatar-edit-container img, #profile-avatar-placeholder {
+    width: 100%;
+    height: 100%;
+    border-radius: 50%;
+    object-fit: cover;
+    border: 3px solid #007bff;
+}
+
+.avatar-upload-label {
+    position: absolute;
+    bottom: 0;
+    right: 0;
+    background: #007bff;
+    color: white;
+    width: 32px;
+    height: 32px;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    font-size: 12px;
+    border: 2px solid #1e1e1e;
+    transition: transform 0.2s;
+}
+
+.avatar-upload-label:hover {
+    transform: scale(1.1);
+}
+
 /* Storage Progress Bar */
 .storage-info {
     margin-top: 25px;