body {
  -webkit-tap-highlight-color: rgba(0,0,0,0);
  -webkit-text-size-adjust: 100%;
  -webkit-touch-callout: none;
  background-color: #fafafa;
  color: #212121;
  cursor: default;
  font-family: 'Noto Serif', serif;
  font-size: 24px;
  margin: 0;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;
}

.content {
  position: absolute;
  width: 100%;  
}

.content-item {
  -webkit-transition: opacity 0.5s ease-in-out;
  transition: opacity 0.5s ease-in-out;
}

.content-item.hide {
  opacity: 0;
}

.content-hidden {
  opacity: 0;
  -webkit-transition: opacity 0.1s ease-in-out;
  transition: opacity 0.1s ease-in-out;
}

.panel {
  border: 3px solid #212121;
  border-radius: 3px;
  margin: 24px auto;
  position: relative;
  width: 576px;
}

.panel.no-border {
  border: 0;
}

.panel-image {
  height: 100%;
  overflow: hidden;
  width: 100%;
}

.panel-caption {
  background-color: #fafafa;
  border: 2px solid #212121;
  border-radius: 3px;
  left: 0;
  line-height: 36px;
  padding: 12px 18px;
  position: absolute;
  top: 0;
  white-space: nowrap;
  z-index: 1;
}

.choice {
  background-color: #212121;
  border-radius: 3px;
  line-height: 36px;
  margin: 24px auto;
  padding: 24px;
  width: 534px;
}

.choice-title {
  color: #fafafa;
}

.choice-option {
  background-color: #fafafa;
  border-radius: 12px;
  cursor: pointer;
  margin: 18px;
  padding: 12px 24px;
  position: relative;
  -webkit-transition: background-color 0.1s ease-in-out;
  transition: background-color 0.1s ease-in-out;
}

.choice-option::before {
  background-color: #fafafa;
  content: '';
  position: absolute;
}

.choice-option.selected {
  background-color: #ffa726;
  pointer-events: none;
}

.choice-option:not(.selected).hover:hover,
.choice-option:not(.selected).active {
  color: #9e9e9e;
}

.button-container {
  margin: 48px auto 168px;
  width: 582px;
}

.button-container::after {
  clear: both;
  content: '.';
  display: block;
  height: 0;
  visibility: hidden;
}

.button {
  background-color: #e0e0e0;
  border: 2px solid #212121;
  cursor: pointer;
  line-height: 48px;
  text-align: center;
}

.button.hover:hover,
.button.active {
  opacity: 0.6;
}

.button.disabled {
  opacity: 0.1;
  pointer-events: none;
}

.next-button {
  border-radius: 3px;
  border-right-width: 0;
  float: right;
  margin-right: 24px;
  padding-left: 10px;
  position: relative;
  width: 122px;
}

.next-button::before {
  background-color: #e0e0e0;
  border-radius: 3px;
  border-right: 2px solid #212121;
  border-top: 2px solid #212121;
  content: '';
  height: 35px;
  left: 0;
  position: absolute;
  top: 0;
  -webkit-transform: translate(111.8px, 5.5px) rotate(45deg);
  transform: translate(111.8px, 5.5px) rotate(45deg);
  width: 35px;
}

.next-button::after {
  background-color: #e0e0e0;
  border-radius: 3px;
  content: '';
  height: 48px;
  margin-right: 3px;
  position: absolute;
  right: 0;
  top: 0;
  width: 27px;
}

.restart-button {
  border-radius: 24px;
  margin: 0 auto;
  width: 168px;
}