The narrower max-w-2xl card left a lot of unused width on scripts with several variables, forcing a long single-column scroll. Widening the card and laying out variable inputs in a responsive grid (up to 3 columns) uses that space; textareas and checkbox groups still span the full width since they don't shrink well into a column. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>