diff --git a/internal/ui/render.go b/internal/ui/render.go
index b83a0f2..9374319 100644
--- a/internal/ui/render.go
+++ b/internal/ui/render.go
@@ -4,6 +4,7 @@ import (
 	"image"
 	"image/color"
 
+	"gioui.org/f32"
 	"gioui.org/layout"
 	"gioui.org/op"
 	"gioui.org/op/clip"
@@ -259,10 +260,17 @@ func (r *Renderer) drawLineText(gtx layout.Context, shp *text.Shaper, x, y unit.
 
 // drawLine draws a line of glyphs using shaper.Shape() and shaper.Bitmaps().
 func (r *Renderer) drawLine(gtx layout.Context, shp *text.Shaper, line []text.Glyph, x, y unit.Dp, col color.NRGBA) {
-	// Offset coordinate system to (x, y).
-	// The shaper's glyph positions (g.X, g.Y) are absolute within the text block.
-	// g.Y for the first line is the ascent, so the top of the text will be at y.
-	t := op.Offset(image.Pt(gtx.Dp(x), gtx.Dp(y))).Push(gtx.Ops)
+	if len(line) == 0 {
+		return
+	}
+	first := line[0]
+	// shaper.Shape(line) returns a path where glyph positions are relative to
+	// the first glyph (first.X == 0 in the returned path). So we offset by
+	// (x, y) and let the shaper handle the rest.
+	// first.Y is the baseline; we subtract it so the top of the text is at y.
+	offX := float32(gtx.Dp(x))
+	offY := float32(gtx.Dp(y)) - float32(first.Y)
+	t := op.Affine(f32.Affine2D{}.Offset(f32.Pt(offX, offY))).Push(gtx.Ops)
 
 	// Draw vector glyphs
 	path := shp.Shape(line)