diff --git a/src/app.rs b/src/app.rs
index cdee587..9911b9c 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -127,29 +127,29 @@ fn render_start_screen(state: &mut StartMenuState, area: Rect, buf: &mut Buffer)
 }
 
 fn handle_crossterm_events(app_state: &mut AppState) -> color_eyre::Result<()> {
-    if let Event::Key(key) = event::read()? {
-        if key.kind == KeyEventKind::Press {
-            match key.code {
-                // global exit via Ctrl+C
-                KeyCode::Char('c') | KeyCode::Char('C')
-                    if key.modifiers == KeyModifiers::CONTROL =>
-                {
-                    *app_state = AppState::Exit;
-                }
+    if let Event::Key(key) = event::read()?
+        && key.kind == KeyEventKind::Press
+    {
+        match key.code {
+            // global exit via Ctrl+C
+            KeyCode::Char('c') | KeyCode::Char('C')
+                if key.modifiers == KeyModifiers::CONTROL =>
+            {
+                *app_state = AppState::Exit;
+            }
 
-                // state-specific input handling
-                _ => {
-                    *app_state = match std::mem::replace(app_state, AppState::Exit) {
-                        AppState::Start(mut menu) => {
-                            handle_start_input(&mut menu, key)
-                                .unwrap_or(AppState::Start(menu))
-                        }
-                        AppState::Playing(mut game) => {
-                            game.handle_input(key);
-                            AppState::Playing(game)
-                        }
-                        AppState::Exit => AppState::Exit,
+            // state-specific input handling
+            _ => {
+                *app_state = match std::mem::replace(app_state, AppState::Exit) {
+                    AppState::Start(mut menu) => {
+                        handle_start_input(&mut menu, key)
+                            .unwrap_or(AppState::Start(menu))
                     }
+                    AppState::Playing(mut game) => {
+                        game.handle_input(key);
+                        AppState::Playing(game)
+                    }
+                    AppState::Exit => AppState::Exit,
                 }
             }
         }
diff --git a/src/binary_numbers.rs b/src/binary_numbers.rs
index 98857c4..a3cbb58 100644
--- a/src/binary_numbers.rs
+++ b/src/binary_numbers.rs
@@ -168,7 +168,7 @@ impl WidgetRef for BinaryNumbersPuzzle {
             Block::bordered().border_type(border_type).fg(border_color).render(area, buf);
 
             let suggestion_str = format!("{suggestion}");
-            Paragraph::new(format!("{}", suggestion_str))
+            Paragraph::new(suggestion_str.to_string())
                 .white()
                 .when(show_correct_number && is_correct_number, |p| p.light_green().underlined())
                 .alignment(Center)
@@ -241,7 +241,7 @@ impl WidgetRef for BinaryNumbersPuzzle {
 
         Block::bordered().dark_gray().render(result_area, buf);
 
-        let instruction_spans: Vec<Span> = vec![
+        let instruction_spans: Vec<Span> = [
             hotkey_span("Left Right", "select  "),
             hotkey_span("Enter", "confirm  "),
             hotkey_span("S", "skip  "),
@@ -293,7 +293,7 @@ impl MainScreenWidget for BinaryNumbersGame {
         self.refresh_stats_snapshot();
     }
 
-    fn handle_input(&mut self, input: KeyEvent) -> () { self.handle_game_input(input); }
+    fn handle_input(&mut self, input: KeyEvent) { self.handle_game_input(input); }
     fn is_exit_intended(&self) -> bool { self.exit_intended }
 }
 
@@ -632,8 +632,7 @@ impl Widget for &mut BinaryNumbersGame {
 
 // Simple ASCII gauge renderer to avoid variable glyph heights from Unicode block elements
 fn render_ascii_gauge(area: Rect, buf: &mut Buffer, ratio: f64, color: Color) {
-    let clamped = if ratio < 0.0 { 0.0 } else if ratio > 1.0 { 1.0 } else { ratio };
-    let fill_width = ((area.width as f64) * clamped).round().min(area.width as f64) as u16;
+    let fill_width = ((area.width as f64) * ratio.clamp(0.0, 1.0)).round().min(area.width as f64) as u16;
     if area.height == 0 { return; }
     for x in 0..area.width {
         let filled = x < fill_width;
@@ -664,10 +663,11 @@ impl HighScores {
             let mut contents = String::new();
             if file.read_to_string(&mut contents).is_ok() {
                 for line in contents.lines() {
-                    if let Some((k,v)) = line.split_once('=') {
-                        if let (Ok(bits), Ok(score)) = (k.trim().parse::<u32>(), v.trim().parse::<u32>()) {
-                            hs.scores.insert(bits, score);
-                        }
+                    if let Some((k,v)) = line.split_once('=')
+                        && let Ok(bits) = k.trim().parse::<u32>()
+                        && let Ok(score) = v.trim().parse::<u32>()
+                    {
+                        hs.scores.insert(bits, score);
                     }
                 }
             }
diff --git a/src/utils.rs b/src/utils.rs
index f83daec..f0d0b04 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -89,8 +89,8 @@ impl Widget for AsciiArtWidget {
 
 pub fn center(area: Rect, horizontal: Constraint) -> Rect {
     let [area] = Layout::horizontal([horizontal]).flex(Flex::Center).areas(area);
-    let area = vertically_center(area);
-    area
+    
+    vertically_center(area)
 }
 
 pub fn vertically_center(area: Rect) -> Rect {