* {
  box-sizing: border-box;
}

html {
  font-family: sans-serif;
}

body {
  margin: 0;
}

header {
  background: #023d6d;
  color: white;
  padding: 1rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.26);
  width: 100%;
}

#results,
#calculator {
  margin: 2rem auto;
  width: 40rem;
  max-width: 90%;
  border: 1px solid #023d6d;
  border-radius: 10px;
  padding: 1rem;
  color: #023d6d;
}

#results {
  text-align: center;
}

#calculator {
  input {
    font: inherit;
    font-size: 3rem;
    border: 2px solid #023d6d;
    width: 10rem;
    padding: 0.15rem;
    margin: auto;
    display: block;
    color: #023d6d;
    text-align: center;

    &:focus {
      outline: none;
    }
  }

  button {
    font: inherit;
    background: #023d6d;
    color: white;
    border: 1px solid #023d6d;
    padding: 1rem;
    cursor: pointer;

    &:hover,
    &:active {
      background: #084f88;
      border-color: #084f88;
    }

    &:focus {
      outline: none;
    }
  }
}

#calc-actions {
  margin-top: 1rem;
  text-align: center;

  button {
    width: 4rem;
  }
}