diff --git a/crates/lore-tui/src/view/command_palette.rs b/crates/lore-tui/src/view/command_palette.rs
index 4f73769..ee8b93a 100644
--- a/crates/lore-tui/src/view/command_palette.rs
+++ b/crates/lore-tui/src/view/command_palette.rs
@@ -9,6 +9,7 @@ use ftui::render::drawing::{BorderChars, Draw};
 use ftui::render::frame::Frame;
 
 use crate::state::command_palette::CommandPaletteState;
+use crate::text_width::cursor_cell_offset;
 
 use super::{ACCENT, BG_SURFACE, BORDER, TEXT, TEXT_MUTED};
 
@@ -16,14 +17,6 @@ fn text_cell_width(text: &str) -> u16 {
     text.chars().count().min(u16::MAX as usize) as u16
 }
 
-fn cursor_cell_offset(query: &str, cursor: usize) -> u16 {
-    let mut idx = cursor.min(query.len());
-    while idx > 0 && !query.is_char_boundary(idx) {
-        idx -= 1;
-    }
-    text_cell_width(&query[..idx])
-}
-
 // ---------------------------------------------------------------------------
 // render_command_palette
 // ---------------------------------------------------------------------------
diff --git a/crates/lore-tui/src/view/file_history.rs b/crates/lore-tui/src/view/file_history.rs
index 92de8f8..525489a 100644
--- a/crates/lore-tui/src/view/file_history.rs
+++ b/crates/lore-tui/src/view/file_history.rs
@@ -21,8 +21,9 @@ use ftui::render::cell::{Cell, PackedRgba};
 use ftui::render::drawing::Draw;
 use ftui::render::frame::Frame;
 
-use crate::state::file_history::{FileHistoryResult, FileHistoryState};
 use super::common::truncate_str;
+use crate::state::file_history::{FileHistoryResult, FileHistoryState};
+use crate::text_width::cursor_cell_offset;
 
 // ---------------------------------------------------------------------------
 // Colors (Flexoki palette)
@@ -137,8 +138,7 @@ fn render_path_input(frame: &mut Frame<'_>, state: &FileHistoryState, x: u16, y:
 
     // Cursor indicator.
     if state.path_focused {
-        let cursor_col = state.path_input[..state.path_cursor].chars().count() as u16;
-        let cursor_x = after_label + cursor_col;
+        let cursor_x = after_label + cursor_cell_offset(&state.path_input, state.path_cursor);
         if cursor_x < max_x {
             let cursor_cell = Cell {
                 fg: PackedRgba::rgb(0x10, 0x0F, 0x0F), // dark bg
diff --git a/crates/lore-tui/src/view/search.rs b/crates/lore-tui/src/view/search.rs
index 848c222..851d562 100644
--- a/crates/lore-tui/src/view/search.rs
+++ b/crates/lore-tui/src/view/search.rs
@@ -18,24 +18,11 @@
 use ftui::core::geometry::Rect;
 use ftui::render::cell::Cell;
 use ftui::render::drawing::Draw;
-
-/// Count display-width columns for a string (char count, not byte count).
-fn text_cell_width(text: &str) -> u16 {
-    text.chars().count().min(u16::MAX as usize) as u16
-}
-
-/// Convert a byte-offset cursor position to a display-column offset.
-fn cursor_cell_offset(query: &str, cursor: usize) -> u16 {
-    let mut idx = cursor.min(query.len());
-    while idx > 0 && !query.is_char_boundary(idx) {
-        idx -= 1;
-    }
-    text_cell_width(&query[..idx])
-}
 use ftui::render::frame::Frame;
 
 use crate::message::EntityKind;
 use crate::state::search::SearchState;
+use crate::text_width::cursor_cell_offset;
 
 use super::{ACCENT, BG_SURFACE, BORDER, TEXT, TEXT_MUTED};
 
diff --git a/crates/lore-tui/src/view/trace.rs b/crates/lore-tui/src/view/trace.rs
index 95cfea4..fe26dd4 100644
--- a/crates/lore-tui/src/view/trace.rs
+++ b/crates/lore-tui/src/view/trace.rs
@@ -135,8 +135,7 @@ fn render_path_input(frame: &mut Frame<'_>, state: &TraceState, x: u16, y: u16,
 
     // Cursor.
     if state.path_focused {
-        let cursor_col = state.path_input[..state.path_cursor].chars().count() as u16;
-        let cursor_x = after_label + cursor_col;
+        let cursor_x = after_label + cursor_cell_offset(&state.path_input, state.path_cursor);
         if cursor_x < max_x {
             let cursor_cell = Cell {
                 fg: PackedRgba::rgb(0x10, 0x0F, 0x0F),