*{
  margin: 0;
  padding: 0;

  box-sizing: border-box;
}

:root{
  font-size: 62.5%;

  --bg-color-card: #FFFFFF;
  --bg-color-input: #DCE2E9;
  --bg-color-button: #7879F1;

  --font-colorHeader: #34355B;

  --ff-primary: 'Montserrat', sans-serif;
  --ff-secondary: 'DM Sans', sans-serif;
}

body{
  background: linear-gradient(287.56deg, #C2E9FB 0%, #A1C4FD 100%);

  font-size: 1.6rem;

  display: grid;
  place-items: center;
  height: 100vh;
}

body, input, button{
  font-family: var(--ff-secondary);
}

.hide{
  display: none;
}

/*screen 01*/
main{
  width: min(42.8rem, 90%);
  
  margin: 0 auto;
  margin-top: -12rem;
  padding: 4.8rem 6.4rem 6.4rem;
  
  background-color: var(--bg-color-card);

  box-shadow: 0px 0.2rem 0.4rem rgba(0, 0, 0, 0.1);
  border-radius: 0.6rem;

  text-align: center;
}

h1{
  font-family: var(--ff-primary);
  font-size: 2.4rem;
  color: var(--font-colorHeader);

  line-height: 3rem;

  margin-bottom: 1.6rem;
}

p{
  font-size: 1.6rem;
  font-weight: 400;
  color: #34355BCC;

  line-height: 2.4rem;

  margin-bottom: 4.8rem;
}

form{
  display: flex;
  justify-content: center;
}

input, button{
  border: none;
  padding: 1.6rem;
}

input{
  background-color: var(--bg-color-input);
  
  width: 5rem;
  
  border-radius: 0.4rem 0rem 0rem 0.4rem;
  
  text-align: center;
  
}

/*styling "input" of type "number"*/
input[type=number]::-webkit-inner-spin-button { 
  -webkit-appearance: none;
}

button{
  background-color: var(--bg-color-button);

  color: var(--bg-color-card);
  font-weight: 700;

  border-radius: 0rem 0.4rem 0.4rem 0rem;
  
  cursor: pointer;

  transition: background .3s;
}

button:hover{
  background-color: rgb(81, 81, 206);
}

/*screen 02*/
h2{
  font-size: 2.4rem;
  font-weight: 400;
  
  margin-bottom: 3.3rem;
}

.screen2 button{
  border-radius: 0.4rem;
}