diff --git a/src/ui/grid.rs b/src/ui/grid.rs
index 469c83a..b5099fc 100644
--- a/src/ui/grid.rs
+++ b/src/ui/grid.rs
@@ -15,6 +15,8 @@ const ROW_HEADER_WIDTH: u16 = 16;
 const COL_WIDTH: u16 = 10;
 const MIN_COL_WIDTH: u16 = 6;
 const MAX_COL_WIDTH: u16 = 32;
+/// Subtle dark-gray background used to highlight the row containing the cursor.
+const ROW_HIGHLIGHT_BG: Color = Color::Indexed(237);
 const GROUP_EXPANDED: &str = "▼";
 const GROUP_COLLAPSED: &str = "▶";
 
@@ -322,14 +324,29 @@ impl<'a> GridWidget<'a> {
                     let ri = data_row_idx;
                     data_row_idx += 1;
 
-                    let row_style = if ri == sel_row {
+                    let is_sel_row = ri == sel_row;
+                    let row_style = if is_sel_row {
                         Style::default()
                             .fg(Color::Cyan)
+                            .bg(ROW_HIGHLIGHT_BG)
                             .add_modifier(Modifier::BOLD)
                     } else {
                         Style::default()
                     };
 
+                    // Paint row-highlight background across the entire row
+                    // (data area + any trailing space) so gaps between columns
+                    // and the margin after the last column share the highlight.
+                    if is_sel_row {
+                        let row_w = (area.x + area.width).saturating_sub(area.x);
+                        buf.set_string(
+                            area.x + ROW_HEADER_WIDTH,
+                            y,
+                            " ".repeat(row_w.saturating_sub(ROW_HEADER_WIDTH) as usize),
+                            Style::default().bg(ROW_HIGHLIGHT_BG),
+                        );
+                    }
+
                     // Multi-level row header — one sub-column per row category
                     let mut hx = area.x;
                     for d in 0..n_row_levels {
@@ -392,6 +409,13 @@ impl<'a> GridWidget<'a> {
                                 .add_modifier(Modifier::BOLD)
                         } else if is_search_match {
                             Style::default().fg(Color::Black).bg(Color::Yellow)
+                        } else if is_sel_row {
+                            let fg = if value.is_none() {
+                                Color::DarkGray
+                            } else {
+                                Color::White
+                            };
+                            Style::default().fg(fg).bg(ROW_HIGHLIGHT_BG)
                         } else if value.is_none() {
                             Style::default().fg(Color::DarkGray)
                         } else {