fix: light theme cards, sidebar collapse, frontend link, dashboard grid

frontend/src/pages/front/LoginPage.css

@@ -59,7 +59,7 @@
   display: flex;
   width: 900px;
   min-height: 560px;
-  background: rgba(17, 22, 39, 0.95);
+  background: #FFFFFF;
   backdrop-filter: blur(24px);
   border: 1px solid rgba(0, 0, 0, 0.08);
   border-radius: 20px;
@@ -82,7 +82,7 @@
   padding: 48px 40px;
   display: flex;
   align-items: center;
-  border-right: 1px solid rgba(255, 255, 255, 0.04);
+  border-right: 1px solid rgba(0, 0, 0, 0.06);
 }
 
 .brand-content {
@@ -150,7 +150,7 @@
 /* Tabs */
 .login-tabs {
   display: flex;
-  background: rgba(255, 255, 255, 0.04);
+  background: rgba(0, 0, 0, 0.03);
   border-radius: 10px;
   padding: 4px;
   margin-bottom: 24px;
@@ -217,7 +217,7 @@
   padding: 12px 14px;
   border-radius: 10px;
   border: 1px solid rgba(0, 0, 0, 0.10);
-  background: rgba(255, 255, 255, 0.03);
+  background: rgba(0, 0, 0, 0.02);
   color: #1A1F36;
   font-size: 14px;
   outline: none;
@@ -339,7 +339,7 @@
     width: 100%;
     padding: 32px 24px;
     border-right: none;
-    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
+    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
   }
   .login-form-panel {
     padding: 32px 24px;