Beta Ended Error Block for React

The days of beta are counted from two typed ISO dates (the day the tester joined and "today" for the page), and so are the days since the beta ended and the days the ticket is valid. Notes sent and features tried are typed counts. Nothing reads the visitor's clock, so the server and every browser print the same numbers. Replace the constants with the account's own history.

In whole cents: 999 a month times 12 is 11,988, and 35% off is Math.round(11988 * 65 / 100), 7,792 cents, which Intl.NumberFormat prints as $77.92. Working in cents keeps the sums exact, and the same two numbers draw the old price and the new one.

It records the claim in the page's state, rewrites the price line, fills the ticket's "claimed" line and says "35% off claimed in this demo: $77.92 for the first year. Nothing was charged." Undo takes it back, and a second press says it is already claimed. To wire it for real, apply the code to the subscription with your billing provider where the code says so.

Yes: it writes BETA35 to the clipboard and says so in the page's status line. If the browser refuses (no permission, or a page that isn't served over HTTPS) the line says that instead, and the code stays on the ticket to select by hand.

Reading order follows the copy: heading, price and button come first for keyboard and screen reader users and on a phone. On a wide screen the card and ticket are drawn at the start with a grid placement, without changing that order, so the button is still the first thing you tab to.

No: a component can't. The page is shown after a login or a gated action in your app, so decide the status there, a 403 for a gated action once the beta is closed, and send it from the server.