diff --git a/templates/base.html b/templates/base.html
index 02bf182..bf73706 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -271,6 +271,7 @@
     .results-table th,
     .results-table td             { padding: 0.6rem 0.8rem; }
     .results-table thead tr       { border-bottom: 2px solid #e2e8f0; text-align: left; }
+    .results-table th             { position: sticky; top: 0; background: #fff; z-index: 1; }
     .results-table tbody tr       { border-bottom: 1px solid #e2e8f0; }
     .row-fast                     { background: #f0fff4; }
     .row-slow                     { background: #fff5f5; }