html,
body {
  background-color: #fff;
  font-family: "Helvetica", "Arial", "Verdana", sans-serif;
  margin: 0;
  padding: 0;
}

.app-container {
  max-width: 100%;
  overflow: hidden;
}

.header {
  background-color: #369;
  padding: 10px 0;
}

.header > h1 {
  color: #fff;
  font-size: 24px;
  font-weight: 400;
  margin: 0;
  text-align: center;
}

.container {
  color: #222;
  margin: 0 auto;
  padding: 20px 0;
  text-align: left;
  user-select: none;
  width: 350px;
}

h2 {
  border-bottom: 1px solid #ddd;
  font-size: 18px;
  font-weight: normal;
  margin: 0 0 15px 0;
  padding: 0 0 2px 6px;
}

h2:not(:first-child) {
  padding-top: 25px;
}

small {
  border-color: #ccc;
  border-style: solid;
  border-top-left-radius: 3px;
  border-top-right-radius: 3px;
  border-width: 1px 1px 0 1px;
  color: #888;
  display: block;
  float: right;
  height: 20px;
  line-height: 20px;
  margin: 0 6px 0 0;
  padding: 0 8px;
  text-align: right;
}

input[type="text"],
input[type="number"] {
  border-radius: 5px;
  border: 1px solid #333;
  font-family: monospace;
  font-size: 21px;
  height: 40px;
  letter-spacing: 1px;
  padding: 0 10px;
  text-transform: uppercase;
  width: calc(100% - 20px);
}

fieldset {
  border-bottom-left-radius: 6px;
  border-bottom-right-radius: 6px;
  border-color: #bbb;
  border-style: solid;
  border-width: 0 1px 1px 1px;
  margin: 0 4px;
  padding: 10px;
  width: calc(100% - 28px);
}

fieldset.closed {
  border: none;
  height: 0;
  overflow: hidden;
  padding: 0;
}

label:has(input[type="radio"]) {
  cursor: pointer;
  display: block;
  height: 30px;
  line-height: 30px;
}

.results {
  font-family: monospace;
  font-size: 24px;
  letter-spacing: 1px;
  line-height: 32px;
  padding-left: 10px;
  text-align: center;
  text-transform: uppercase;
}

.results div {
  background-color: #369;
  border-radius: 5px;
  border: 1px solid #0005;
  color: #fff;
  display: inline-block;
  height: 32px;
  margin-bottom: 10px;
  margin-right: 10px;
  padding: 0 10px;
}