.code {
  font-family: "Fira Mono", "monospace";
  white-space: pre-wrap;
  text-align: start;
  /* padding-left: 10%; */
}

.operand {
  padding: 0.5rem 1rem;
  border-radius: 50%;
  background-color: aqua;
  float: left;
  margin: 0.5rem 0 0.5rem 1rem;
}

.lambda {
  margin-top: 0.5rem;
  min-width: 2rem;
  min-height: 2rem;
  padding: 0.5rem 1rem;
  background-color: white;
  border: 1px solid black;
  display: inline;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

option {
  font-family: "Fira Mono", "monospace";
  background-color: white;
}

.hidden {
  display: none;
}

.blank {
  display: inline-block;
  border: 3px solid darkgray;
  border-radius: 10%;
  background-color: #ddd;
  min-width: 60px;
  min-height: 1.75rem;
  font-size: large;
  cursor: move;
  translate: 0 4px;
  font-size: small;
  -ms-touch-action: none;
  touch-action: none;
}

.options {
  display: flex;
  flex-wrap: wrap;
}

.option {
  min-width: 60px;
  min-height: 19px;
  padding: 0.3% 1%;
  font-size: large;
  font-family: "Fira Mono", monospace;
  display: inline-block;
  border: 3px solid darkgray;
  margin: 1%;
  background-color: #ddd;
  border-radius: 10%;
  cursor: move;
  -ms-touch-action: none;
  touch-action: none;
}

.correct {
  color: green;
}

.wrong {
  color: red;
}

.all,
.wrong,
.correct {
  font-size: large;
  font-weight: 900;
}

.drop-active {
  border-style: dashed;
}

.drop-target {
  background-color: #ccc;
}

.can-drop {
  opacity: 0.5;
}