diff --git a/src/styles.css b/src/styles.css
index d14727e..2d157ca 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -501,6 +501,7 @@ html, body, #root {
   padding: 0 12px;
   background: transparent;
   border: none;
+  border-bottom: 2px solid transparent;
   border-radius: var(--radius-md);
   color: var(--color-text-secondary);
   cursor: pointer;
@@ -518,6 +519,7 @@ html, body, #root {
 .tab.active {
   background-color: var(--color-bg-elevated);
   color: var(--color-text-primary);
+  border-bottom: 2px solid var(--color-accent);
 }
 
 .tab-title {
@@ -1627,6 +1629,9 @@ span.search-highlight {
   color: inherit !important;
   border-radius: 2px;
   padding: 1px 0;
+  text-decoration: underline;
+  text-decoration-color: var(--color-md-mark-text);
+  text-underline-offset: 2px;
   transition: background-color 0.15s ease, outline-color 0.15s ease;
 }