body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.header {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.input-box {
  font-size: 1.5rem;
  width: 400px;
  padding: 0.5rem;
}

.output {
  font-size: 1.5rem;
  line-height: 1.5;
}