:root {
  --white: #EDF2F4;
  --bg-green: #779136;
}

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

body {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--white);
  background-color: #445f08;
}

main {
  width: 500px;
  margin-top: max(calc(50vh - 256px), 0px);
  margin-left: auto;
  margin-right: auto;
  padding: 0 10px;
}

h1 {
  font-size: 2.5rem;
  line-height: 1.5;
  text-align: center;
  margin: 0 auto 20px;
}

fieldset {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 30px;
  background-color: var(--bg-green);
  border: 3px solid var(--white);
}

label {
  font-size: 1.5rem;
  font-weight: bold;
}

input {
  width: 100%;
  height: 65px;
  margin: 5px auto 10px;
  font-size: 2.5rem;
  font-weight: bold;
  text-align: center;
  color: var(--white);
  background-color: #38371c;
  border: 2px solid var(--white);
}

#convert-btn {
  width: 100%;
  height: 60px;
  font-size: 1.5rem;
  font-weight: bold;
  margin: 10px;
  background-color: #d28f1c;
  border: 3px solid var(--white);
}

#output {
  display: none;
  margin-top: 1rem;
  padding: 1rem;
  text-align: center;
  font-size: 2.5rem;
  font-weight: bold;
  letter-spacing: 0.2rem;
  color: var(--white);
  background-color:var(--bg-green);
  border: 3px solid #faa32f;
}

/*  WARNING STYLE
  font-size: 2rem;
  font-weight: initial;
  letter-spacing: initial;
  color: #68080b;
  background-color: #ee4288;
  border: 3px solid #68080b;
} */