Once you have signed up for a WordPress CloudCanvas website you will receive an email with your login information. All you need to login to your Canvas website is your temporary domain name such as mysite.cloudcanvas.website, at the end of your domain type /wp-admin so in full it would look like mysite.cloudcanvas.website/wp-admin.
The same rule applies when you change your temporary domain all you need to do is type /wp-admin at the end of your new domain.
Your login screen will look like the following, the background image changes to give you a little bit of inspiration every time you log in.
Once logged in you will be greeted with the dashboard giving you a quick overview of your site.