2 files changed, 60 insertions, 8 deletions
diff --git a/src/app/input.rs b/src/app/input.rs
index c91722f7..254b7916 100644
--- a/src/app/input.rs
+++ b/src/app/input.rs
@@ -8,7 +8,7 @@ use tracing::warn;
 use crate::layout::{NavDirection, PaneInfo, SplitBorder};
 use crate::selection::Selection;
 
-use super::state::{AppState, ContextMenuState, DragState, Mode, CONTEXT_MENU_ITEMS};
+use super::state::{key_matches, AppState, ContextMenuState, DragState, Mode, CONTEXT_MENU_ITEMS};
 use super::App;
 
 // ---------------------------------------------------------------------------
@@ -86,19 +86,19 @@ fn handle_navigate_key(state: &mut AppState, key: KeyEvent) {
 
     // Configurable keybinds (checked before fixed binds)
     let kb = &state.keybinds;
-    if key.code == kb.split_vertical.0 && key.modifiers.contains(kb.split_vertical.1) {
+    if key_matches(&key, kb.split_vertical.0, kb.split_vertical.1) {
         state.split_pane(Direction::Horizontal);
         return;
     }
-    if key.code == kb.split_horizontal.0 && key.modifiers.contains(kb.split_horizontal.1) {
+    if key_matches(&key, kb.split_horizontal.0, kb.split_horizontal.1) {
         state.split_pane(Direction::Vertical);
         return;
     }
-    if key.code == kb.close_pane.0 && key.modifiers.contains(kb.close_pane.1) {
+    if key_matches(&key, kb.close_pane.0, kb.close_pane.1) {
         state.close_pane();
         return;
     }
-    if key.code == kb.fullscreen.0 && key.modifiers.contains(kb.fullscreen.1) {
+    if key_matches(&key, kb.fullscreen.0, kb.fullscreen.1) {
         state.toggle_fullscreen();
         return;
     }
diff --git a/src/app/state.rs b/src/app/state.rs
index 92d729e8..7a577bb8 100644
--- a/src/app/state.rs
+++ b/src/app/state.rs
@@ -75,7 +75,7 @@ pub struct AppState {
 
 impl AppState {
     pub fn is_prefix(&self, key: &crossterm::event::KeyEvent) -> bool {
-        key.code == self.prefix_code && key.modifiers.contains(self.prefix_mods)
+        key_matches(key, self.prefix_code, self.prefix_mods)
     }
 
     pub fn estimate_pane_size(&self) -> (u16, u16) {
@@ -87,6 +87,25 @@ impl AppState {
     }
 }
 
+pub fn key_matches(
+    key: &crossterm::event::KeyEvent,
+    expected_code: KeyCode,
+    expected_mods: KeyModifiers,
+) -> bool {
+    if key.modifiers != expected_mods {
+        return false;
+    }
+
+    match (key.code, expected_code) {
+        (KeyCode::Char(actual), KeyCode::Char(expected))
+            if actual.is_ascii_alphabetic() && expected.is_ascii_alphabetic() =>
+        {
+            actual.eq_ignore_ascii_case(&expected)
+        }
+        (actual, expected) => actual == expected,
+    }
+}
+
 // ---------------------------------------------------------------------------
 // Test helpers
 // ---------------------------------------------------------------------------
@@ -113,9 +132,9 @@ impl AppState {
             context_menu: None,
             update_available: None,
             update_dismissed: false,
-            prefix_code: KeyCode::Char('s'),
+            prefix_code: KeyCode::Char('b'),
             prefix_mods: KeyModifiers::CONTROL,
-            prefix_label: "ctrl+s".into(),
+            prefix_label: "ctrl+b".into(),
             sidebar_width: 26,
             sidebar_collapsed: false,
             confirm_close: true,
@@ -133,3 +152,36 @@ impl AppState {
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crossterm::event::KeyEvent;
+
+    #[test]
+    fn key_matches_requires_exact_modifiers() {
+        assert!(key_matches(
+            &KeyEvent::new(KeyCode::Char('b'), KeyModifiers::CONTROL),
+            KeyCode::Char('b'),
+            KeyModifiers::CONTROL,
+        ));
+
+        assert!(!key_matches(
+            &KeyEvent::new(
+                KeyCode::Char('b'),
+                KeyModifiers::CONTROL | KeyModifiers::SHIFT,
+            ),
+            KeyCode::Char('b'),
+            KeyModifiers::CONTROL,
+        ));
+    }
+
+    #[test]
+    fn key_matches_letters_case_insensitively() {
+        assert!(key_matches(
+            &KeyEvent::new(KeyCode::Char('B'), KeyModifiers::SHIFT),
+            KeyCode::Char('b'),
+            KeyModifiers::SHIFT,
+        ));
+    }
+}