Credit card - Checkout flow (AMEX)

Yet another exploration on the checkout flow, this time with an American express card.
Thanks to @Artem, @Matt James, @Jared Lodwick, @Devin Harold , @Luft, @Adrian Mato for the feedback. Helps to improve on the designs a lot. Keep giving such feedback.
Check out the code here - http://www.materialup.com/posts/creditcardview

More to come. Keep you posted!
Thanks for watching!