diff --git a/client/src/components/handlers/canvas.rs b/client/src/components/handlers/canvas.rs
index cd1c64d..134a9fa 100644
--- a/client/src/components/handlers/canvas.rs
+++ b/client/src/components/handlers/canvas.rs
@@ -27,13 +27,16 @@ pub fn render_canvas(
         .split(area);
 
     // Input container styling
+    let border_style = if form_state.has_unsaved_changes() {
+        Style::default().fg(theme.warning)
+    } else if is_edit_mode {
+        Style::default().fg(theme.accent)
+    } else {
+        Style::default().fg(theme.secondary)
+    };
     let input_container = Block::default()
         .borders(Borders::ALL)
-        .border_style(if is_edit_mode {
-            form_state.has_unsaved_changes().then(|| theme.warning).unwrap_or(theme.accent)
-        } else {
-            theme.secondary
-        })
+        .border_style(border_style)
         .style(Style::default().bg(theme.bg));
 
     // Input block dimensions
diff --git a/client/src/tui/functions/form.rs b/client/src/tui/functions/form.rs
index c1e1fda..cd894c2 100644
--- a/client/src/tui/functions/form.rs
+++ b/client/src/tui/functions/form.rs
@@ -11,13 +11,22 @@ pub async fn handle_action(
     total_count: u64,
     ideal_cursor_column: &mut usize,
 ) -> Result<String, Box<dyn std::error::Error>> {
+            // TODO store unsaved changes without deleting form state values
+    // First check for unsaved changes in both cases
+    if form_state.has_unsaved_changes() {
+        return Ok(
+            "Unsaved changes. Save (Ctrl+S) or Revert (Ctrl+R) before navigating."
+                .to_string(),
+        );
+    }
+
     match action {
         "previous_entry" => {
             let new_position = current_position.saturating_sub(1);
             if new_position >= 1 {
                 *current_position = new_position;
                 let response = grpc_client.get_adresar_by_position(*current_position).await?;
-                
+
                 // Direct field assignments
                 form_state.id = response.id;
                 form_state.values = vec![
@@ -27,14 +36,14 @@ pub async fn handle_action(
                     response.skladm, response.ico, response.kontakt,
                     response.telefon, response.skladu, response.fax,
                 ];
-                
+
                 let current_input = form_state.get_current_input();
                 let max_cursor_pos = if !current_input.is_empty() {
                     current_input.len() - 1
                 } else { 0 };
                 form_state.current_cursor_pos = std::cmp::min(*ideal_cursor_column, max_cursor_pos);
                 form_state.has_unsaved_changes = false;
-                
+
                 Ok(format!("Loaded form entry {}", *current_position))
             } else {
                 Ok("Already at first form entry".into())
@@ -45,7 +54,7 @@ pub async fn handle_action(
                 *current_position += 1;
                 if *current_position <= total_count {
                     let response = grpc_client.get_adresar_by_position(*current_position).await?;
-                    
+
                     // Direct field assignments
                     form_state.id = response.id;
                     form_state.values = vec![
@@ -55,14 +64,14 @@ pub async fn handle_action(
                         response.skladm, response.ico, response.kontakt,
                         response.telefon, response.skladu, response.fax,
                     ];
-                    
+
                     let current_input = form_state.get_current_input();
                     let max_cursor_pos = if !current_input.is_empty() {
                         current_input.len() - 1
                     } else { 0 };
                     form_state.current_cursor_pos = std::cmp::min(*ideal_cursor_column, max_cursor_pos);
                     form_state.has_unsaved_changes = false;
-                    
+
                     Ok(format!("Loaded form entry {}", *current_position))
                 } else {
                     form_state.reset_to_empty();
@@ -77,4 +86,4 @@ pub async fn handle_action(
         }
         _ => Err("Unknown form action".into())
     }
-}
+}