diff --git a/src/ui/constants.ts b/src/ui/constants.ts
index e39d351..5f4def4 100644
--- a/src/ui/constants.ts
+++ b/src/ui/constants.ts
@@ -9,6 +9,8 @@ export const UI_DIMENSIONS = {
 	previewLeftMinWidth: 22,
 	previewLeftMaxWidth: 34,
 	previewLeftRatio: 0.34,
+	submitWideMinWidth: 64,
+	submitActionsWidth: 24,
 } as const;
 
 export const UI_TEXT = {
diff --git a/src/ui/render-submit.ts b/src/ui/render-submit.ts
index 175ef98..13c8849 100644
--- a/src/ui/render-submit.ts
+++ b/src/ui/render-submit.ts
@@ -2,8 +2,8 @@ import { truncateToWidth, visibleWidth } from "@mariozechner/pi-tui";
 import { SUBMIT_CHOICES } from "../constants.ts";
 import { serializeAnswer } from "../state/answers.ts";
 import type { AskResult, AskState, AskStateAnswer } from "../types.ts";
-import { UI_TEXT } from "./constants.ts";
-import { pushWrappedText } from "./render-helpers.ts";
+import { UI_DIMENSIONS, UI_TEXT } from "./constants.ts";
+import { mergeColumns, pushWrappedText } from "./render-helpers.ts";
 import type { Theme } from "./render-types.ts";
 
 type ReviewAnswer = AskResult["answers"][string] & {
@@ -19,10 +19,51 @@ export function renderSubmitScreen(
 	theme: Theme,
 	width: number
 ) {
+	const showAllNotes = state.activeSubmitActionIndex === 1;
+
+	if (shouldUseWideSubmitLayout(width)) {
+		const leftWidth = UI_DIMENSIONS.submitActionsWidth;
+		const rightWidth = Math.max(1, width - leftWidth - 2);
+		const reviewLines = renderSubmitReviewLines(
+			state,
+			theme,
+			rightWidth,
+			showAllNotes
+		);
+		const actionLines = renderSubmitActionLines(state, theme, leftWidth);
+		for (const line of mergeColumns(
+			actionLines,
+			reviewLines,
+			leftWidth,
+			width
+		)) {
+			lines.push(line);
+		}
+		return;
+	}
+
+	const reviewLines = renderSubmitReviewLines(
+		state,
+		theme,
+		width,
+		showAllNotes
+	);
+	const actionLines = renderSubmitActionLines(state, theme, width);
+	lines.push(...reviewLines);
+	lines.push("");
+	lines.push(...actionLines);
+}
+
+function renderSubmitReviewLines(
+	state: AskState,
+	theme: Theme,
+	width: number,
+	showAllNotes: boolean
+): string[] {
+	const lines: string[] = [];
 	pushWrappedText(lines, UI_TEXT.reviewTitle, width, theme, "accent", " ", " ");
 	lines.push("");
 
-	const showAllNotes = state.activeSubmitActionIndex === 1;
 	for (let index = 0; index < state.questions.length; index++) {
 		const question = state.questions[index];
 		renderSubmittedQuestion(
@@ -37,8 +78,21 @@ export function renderSubmitScreen(
 		}
 	}
 
-	lines.push("");
+	return lines;
+}
+
+function renderSubmitActionLines(
+	state: AskState,
+	theme: Theme,
+	width: number
+): string[] {
+	const lines: string[] = [];
 	renderSubmitActions(lines, state, theme, width);
+	return lines;
+}
+
+function shouldUseWideSubmitLayout(width: number): boolean {
+	return width >= UI_DIMENSIONS.submitWideMinWidth;
 }
 
 function renderSubmittedQuestion(
diff --git a/tests/render-submit.test.ts b/tests/render-submit.test.ts
index 37abf90..ca1982c 100644
--- a/tests/render-submit.test.ts
+++ b/tests/render-submit.test.ts
@@ -45,6 +45,61 @@ test("submit screen uses shorter action labels without extra prompt text", () =>
 	assert(!lines.some((line) => line.includes("1. Submit answers")));
 });
 
+test("submit screen uses side-by-side layout on wide screens", () => {
+	const state = createInitialState({
+		questions: [
+			{
+				id: "q1",
+				label: "Color",
+				prompt: "Pick one color.",
+				options: [{ value: "blue", label: "Blue" }],
+			},
+		],
+	});
+
+	const lines: string[] = [];
+	renderSubmitScreen(lines, state, mockTheme(), 120);
+
+	assert(
+		lines.some(
+			(line) => line.includes("1. Submit") && line.includes("Review answers")
+		)
+	);
+	assert(
+		lines.some((line) => line.includes("3. Cancel") && line.includes("Color"))
+	);
+});
+
+test("submit screen stacks review above actions on narrow screens", () => {
+	const state = createInitialState({
+		questions: [
+			{
+				id: "q1",
+				label: "Color",
+				prompt: "Pick one color.",
+				options: [{ value: "blue", label: "Blue" }],
+			},
+		],
+	});
+
+	const lines: string[] = [];
+	renderSubmitScreen(lines, state, mockTheme(), 50);
+
+	const reviewIndex = lines.findIndex((line) =>
+		line.includes("Review answers")
+	);
+	const actionIndex = lines.findIndex((line) => line.includes("1. Submit"));
+
+	assert.notEqual(reviewIndex, -1);
+	assert.notEqual(actionIndex, -1);
+	assert(reviewIndex < actionIndex);
+	assert(
+		!lines.some(
+			(line) => line.includes("1. Submit") && line.includes("Review answers")
+		)
+	);
+});
+
 test("submit screen shows notes only for answered questions in submit mode", () => {
 	let state = createInitialState({
 		questions: [
@@ -72,7 +127,7 @@ test("submit screen shows notes only for answered questions in submit mode", ()
 	state = saveNote(state, "Second note");
 
 	const lines: string[] = [];
-	renderSubmitScreen(lines, state, mockTheme(), 80);
+	renderSubmitScreen(lines, state, mockTheme(), 140);
 
 	const firstQuestionIndex = lines.findIndex((line) =>
 		line.includes("<text>Single</text>")
@@ -99,7 +154,7 @@ test("submit screen shows notes only for answered questions in submit mode", ()
 	assert(optionNoteIndex > firstAnswerIndex);
 	assert(lines[firstQuestionNoteIndex]?.startsWith("     "));
 	assert(lines[optionNoteIndex]?.startsWith("     "));
-	assert.equal(lines[secondQuestionIndex - 1], "");
+	assert.equal(lines[secondQuestionIndex - 1]?.trim(), "");
 	assert(
 		lines.some((line) => line.includes("<syntaxString>Note:</syntaxString>"))
 	);
@@ -178,7 +233,7 @@ test("submit screen renders multi-select option notes under their related answer
 	state = saveNote(state, "Second note");
 
 	const lines: string[] = [];
-	renderSubmitScreen(lines, state, mockTheme(), 80);
+	renderSubmitScreen(lines, state, mockTheme(), 140);
 
 	const firstAnswerIndex = lines.findIndex((line) =>
 		line.includes("→ Follow-up action")