@import url("https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400;600;700&display=swap");

:root {
  --white: #fff;
  --black: #1c2b2d;
  --blue: #31326f;
  --light-blue: #005490;
  --color-primary: #9d0191;
  --color-sec: #db6400;
  --grey: #eee;
  --dark-grey: #222831;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 10px;
}

body {
  font-family: "Open Sans", sans-serif;
}

p {
  font-size: 1.6rem;
  line-height: 1.5;
}

img {
  width: 100%;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

/*Section*/
section {
  height: 100vh;
  background-color: var(--light-blue);
  display: flex;
  justify-content: center;
  align-items:center;
}

.calc {
  width: 40rem;
  background-color: var(--white);
}

h2 {
  font-size: 4rem;
  color: var(--white);
  background-color: var(--color-sec);
  text-align: center;
  padding: 1rem;
}

form,
form > * {
  width: 90%;
  margin: 0 auto;
  text-align: center;
  padding: 1rem 0;
  font-size: 1.6rem;
  border-bottom: 2px solid var(--color-primary);
}

form div {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

input,
select {
  font-size:1.6rem;
  padding: 7px;
  width:20rem;
  text-align:right;
}

.btn {
  margin: 5px 0;
  background-color: var(--color-primary);
  color: var(--white);
  outline: none;
  border:none;
  border-radius:3px;
  cursor:pointer;
  transition: all .3s;
}

.btn:hover {
  background-color:var(--color-sec);
}

.error {
  color: red;
  display: none;
}

.result {
  width: 90%;
  margin: 0 auto;
  padding: 1rem;
}

.result > * {
  background-color: var(--grey);
  margin-bottom: 1rem;
  padding: 1rem;
  font-size: 1.8rem;
  font-weight: 700;
}

.total {
  color: red;
}