@import url('https://fonts.googleapis.com/css2?family=Lato&display=swap');

:root {
  --first-color: #643b8c;
}

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

body {
  font-family: 'Lato', sans-serif;
  background-image: url('./img/bg.webp');
  background-size: cover;
  background-repeat: no-repeat;
  font-size: 24px;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
}

.select {
  border: none;
  border-radius: 5px;
  margin-right: 20px;
  padding: 20px;
  background-color: var(--first-color);
  color: #fff;
  margin-bottom: 5px;
  opacity: 0.9;
  font-size: inherit;
}

.input {
  border: none;
  border-radius: 5px;
  padding: 20px;
  background-color: var(--first-color);
  color: #fff;
  margin-bottom: 5px;
  opacity: 0.9;
  font-size: inherit;
}

.btn {
  position: relative;
  display: inline-block;
  background-color: var(--first-color);
  color: white;
  border: none;
  border-radius: 5px;
  width: 100%;
  padding: 20px;
  cursor: pointer;
  margin-bottom: 5px;
  opacity: 0.9;
  font-size: inherit;
}

.btn::after {
  position: absolute;
  top: 0;
  right: 50px;
  width: 48px;
  height: 48px;
  background-image: url('img/swap.svg');
  background-repeat: no-repeat;
  content: '';
}

.rate {
  color: #fff;
  background-color: var(--first-color);
  width: 100%;
  padding: 20px;
  border-radius: 5px;
  opacity: 0.9;
}

@media screen and (max-width: 576px) {
  .container {
    flex-direction: column;
    padding: 20px;
  }

  .select,
  .input,
  .swap,
  .rate {
    width: 100%;
    margin-bottom: 10px;
  }
}