diff --git a/styles.css b/styles.css
index b52caa3..e2c4182 100644
--- a/styles.css
+++ b/styles.css
@@ -24,7 +24,7 @@
 
 body {
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
+    background: linear-gradient(135deg, var(--dark-color) 0%, var(--secondary-color) 100%);
     min-height: 100vh;
     line-height: 1.6;
     color: var(--dark-color);
@@ -53,7 +53,7 @@ body {
 }
 
 .card-header {
-    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
+    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-color) 100%);
     color: white;
     border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
     padding: 20px;
@@ -89,11 +89,13 @@ body {
 }
 
 .btn-primary:hover {
-    transform: translateY(-2px);
     box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
     background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
 }
 
+.btn-success:hover {
+    transform: translateY(-2px);
+}
 .btn-outline-primary {
     border: 2px solid var(--primary-color);
     color: var(--primary-color);
@@ -159,9 +161,6 @@ body {
     transition: var(--transition);
 }
 
-.chat-message:hover {
-    transform: translateX(5px);
-}
 
 .chat-message.user {
     background: #e3f2fd;
@@ -683,7 +682,7 @@ body {
 
 .accordion-body {
     background: rgba(255, 255, 255, 0.95);
-    padding: 20px;
+    padding: 10px;
 }
 
 .accordion-item:first-of-type .accordion-button {