body {
  font-family: "Inter var", ui-sans-serif, system-ui, -apple-system, system-ui,
    "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif,
    "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  max-width: 600px;
  margin: 0 auto;
  padding: 20px;
  text-align: center;
}

input {
  padding: 10px;
  margin: 5px;
  width: calc(100% - 22px);
  border: 2px solid black;
  border-radius: 0.75rem;
  line-height: 1.5rem;
}

button {
  padding: 10px 20px;
  margin-top: 10px;
}

.result {
  margin-top: 40px;
  margin-bottom: 40px;
  font-size: 1.2em;
  text-align: start;
}

.info {
  text-align: start;
  padding: 20px;
  background-color: aquamarine;
  color: rgb(8, 127, 88);
  border-radius: 0.75rem;
}

.button-40 {
  background-color: #111827;
  border: 1px solid transparent;
  border-radius: 0.75rem;
  box-sizing: border-box;
  color: #ffffff;
  cursor: pointer;
  flex: 0 0 auto;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.5rem;
  padding: 0.75rem 1.2rem;
  text-align: center;
  text-decoration: none #6b7280 solid;
  text-decoration-thickness: auto;
  transition-duration: 0.2s;
  transition-property: background-color, border-color, color, fill, stroke;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  width: 100%;
}

.button-40:hover {
  background-color: #374151;
}

.button-40:focus {
  box-shadow: none;
  outline: 2px solid transparent;
  outline-offset: 2px;
}

@media (min-width: 768px) {
  .button-40 {
    padding: 0.75rem 1.5rem;
  }
}