diff --git a/services/web-ui/public/styles-modal.css b/services/web-ui/public/styles-modal.css
index 6285858..310d1bf 100644
--- a/services/web-ui/public/styles-modal.css
+++ b/services/web-ui/public/styles-modal.css
@@ -25,6 +25,7 @@
 }
 .modal-head {
   display: flex; align-items: center;
+  flex-shrink: 0;
   padding: 16px 20px;
   border-bottom: 1px solid var(--border);
   gap: 16px;
@@ -32,6 +33,7 @@
 .modal-head > :first-child { flex: 1; }
 .modal-body {
   flex: 1;
+  min-height: 0;
   overflow-y: auto;
   padding: 16px 20px;
   display: flex; flex-direction: column;
@@ -39,6 +41,7 @@
 }
 .modal-foot {
   display: flex; align-items: center;
+  flex-shrink: 0;
   padding: 12px 20px;
   border-top: 1px solid var(--border);
   gap: 8px;