Now: Both due-date inputs accept a native-valid five-digit year, which is saved without checking the model’s four-digit date format. Rendering then throws, and reloading rejects the entire saved snapshot.

Change to: Set max="9999-12-31" on both due-date inputs and reject dates failing validDate before store.add or store.update, with the inline error "Choose a date between 0001 and 9999." Keep the existing tasks unchanged when validation fails.

Why: A todo list must remain usable after an invalid entry; one task must not blank the workspace or prevent all previously saved tasks from loading.

Now: The working tool puts "A little more headspace for your day." below My tasks, labels its data "A little progress", and expands every add confirmation to "Task added. One thing less to remember."

Change to: Remove the My tasks subtitle paragraph so the composer moves up 27.5px on mobile and 31px on desktop; retain the informative Today explanation. Rename "A little progress" to "Progress" and replace the add confirmation with "Task added."

Why: The supplied copy checklist calls for tools and dashboards to name the task plainly and have no voice line. These repeated flourishes add reading and vertical space without explaining a control or reporting data.

Now: "One task at a time" is white text beginning at x=109, but its green background ends at x=257. In the shipped PNG the final letters extend to x=269 and disappear against the near-white canvas.

Change to: Change the caption rectangle width from 175 to 215 in this SVG, then regenerate public/share.png and the exported share.png. This leaves about 27px padding on both sides of the existing label.

Why: The share card is complete only when the supplied image is readable; the final word must not lose its background when the link unfurls.