The shipping cost  value is updated when changing different destinations.
use float for shipping cost
Let all disabled input fields look the same.
Shipping cost for the selected amount and destination is fetched when destination is selected.
remove console log
increase readability in code.
add space between label and select menu
update data in seeds.rb
added #shipping_cost
display shipping costs matching the default preselected choices.
Installed the county_select gem and added a country select dropdown.
updateOrderSummary every time the user changes weight, delivery destination, etc.