diff --git a/web/styles.css b/web/styles.css
index 23f3156..64fdc3a 100644
--- a/web/styles.css
+++ b/web/styles.css
@@ -1,3 +1,81 @@
+body.dark {
+  background: #121212;
+  color: #eee;
+}
+
+.top-bar {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+.tabs button {
+  margin: 5px;
+  padding: 8px 12px;
+  background: #1f1f1f;
+  color: #eee;
+  border: none;
+  border-radius: 4px;
+  cursor: pointer;
+}
+
+.chat-container {
+  margin-top: 20px;
+  max-height: 60vh;
+  overflow-y: auto;
+  border: 1px solid #333;
+  border-radius: 8px;
+  padding: 10px;
+}
+
+.msg {
+  display: flex;
+  margin: 10px 0;
+}
+
+.avatar {
+  margin-right: 10px;
+  font-size: 24px;
+}
+
+.bubble {
+  padding: 10px;
+  border-radius: 8px;
+  max-width: 70%;
+}
+
+.msg.user .bubble {
+  background: #2962ff;
+  color: #fff;
+  margin-left: auto;
+}
+
+.msg.assistant .bubble {
+  background: #1e1e1e;
+  color: #eee;
+}
+
+.input-bar {
+  margin-top: 20px;
+  display: flex;
+  gap: 10px;
+}
+
+
+.cursor {
+  display: inline-block;
+  margin-left: 4px;
+  animation: blink 1s infinite;
+}
+
+@keyframes blink {
+  0% { opacity: 1; }
+  50% { opacity: 0; }
+  100% { opacity: 1; }
+}
+
+
+
 body {
   font-family: Arial, sans-serif;
   background: #f5f5f5;
@@ -19,6 +97,7 @@ textarea {
   margin-top: 10px;
 }
 
+
 select, button {
   padding: 10px;
   margin-top: 10px;