---
epic: 10
story: 10.3
title: "Drag to Resize Columns"
status: draft
---

## Epic 10 — Notepad UX (Cross-Platform Spec)
**Goal:** Consistent editor behavior specified once, implemented per platform.

### Story 10.3: Drag to Resize Columns

As a user,
I want to drag the divider between the input and answer columns,
So that I can allocate screen space based on my content.

**Acceptance Criteria:**

**Given** the editor is displaying a sheet with input and answer columns
**When** the user hovers over the column divider
**Then** the cursor changes to a resize handle (e.g., `col-resize`)

**Given** the user presses and drags the column divider
**When** they move it left or right
**Then** the input column and answer column resize proportionally in real time
**And** content in both columns reflows to fit the new widths

**Given** the user drags the divider to an extreme position
**When** either column would become smaller than its minimum width
**Then** the divider stops at the minimum width boundary
**And** neither column collapses below a usable size

**Given** the user has repositioned the column divider
**When** they close and reopen the same sheet
**Then** the divider position is restored to their last setting
**And** the position is stored per sheet, not globally