2 files changed, 17 insertions, 2 deletions
diff --git a/internal/ui/table.go b/internal/ui/table.go
index e85e505..8a056fb 100644
--- a/internal/ui/table.go
+++ b/internal/ui/table.go
@@ -219,8 +219,12 @@ func (t *Table) Render(unicode bool, maxWidth int) []string {
 		var tr strings.Builder
 		tr.WriteRune(g.side)
 		tr.WriteString(" ")
-		tr.WriteString(t.Title)
-		padding := innerWidth - 2 - color.VisibleLen(t.Title)
+		title := t.Title
+		if max := innerWidth - 2; max > 0 && color.VisibleLen(title) > max {
+			title = color.TruncateVisible(title, max, unicode)
+		}
+		tr.WriteString(title)
+		padding := innerWidth - 2 - color.VisibleLen(title)
 		if padding < 0 {
 			padding = 0
 		}
diff --git a/internal/ui/table_test.go b/internal/ui/table_test.go
index 68b6d32..170af5c 100644
--- a/internal/ui/table_test.go
+++ b/internal/ui/table_test.go
@@ -54,6 +54,17 @@ func TestTableFitsWithinWidth(t *testing.T) {
 	}
 }
 
+func TestTableLongTitleStaysWithinBorder(t *testing.T) {
+	// A title longer than the column-derived interior must be truncated, not
+	// allowed to overhang the border.
+	tt := &Table{
+		Title:   "What would you like to smelt?",
+		Columns: []string{"", "Bronze bar"},
+		Rows:    [][]string{{"1", "Bronze bar"}},
+	}
+	renderWidths(t, tt, true, 0)
+}
+
 func TestTableNoMutation(t *testing.T) {
 	tt := &Table{
 		Title:   "T",