Twelve mats, not twelve services
A class is one row: its name, how long it runs, what it costs, and how many at once. That last field is the whole feature. The hint under it in the editor reads “3 barbers, 12 mats”, and it counts exactly that — the people who can be in the room at the same time.
One booking is one place. Twelve people take the seven o'clock and the thirteenth is not offered it. There is nobody to pick behind the number: capacity is a count, not a roster, so two rooms running the same class is one row of twenty-four rather than two rows of twelve.
The button at the end of the card says Take this time rather than Confirm, and it asks for an email and a password of at least six characters — booking a class makes the person an account, which is how they come back and cancel it themselves.





