.quiz__view[hidden] {
  display: none;
}

.quiz__spec {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--colour-text-muted);
}

.quiz__heading {
  margin: 0 0 10px;
  font-size: clamp(28px, 6vw, 42px);
  line-height: 1.15;
}

/* Topic picker */

.topic-group {
  margin-bottom: 40px;
}

.topic-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 400;
}

.topic-group__note {
  margin: 4px 0 16px;
  color: var(--colour-text-muted);
  font-size: 15px;
}

.topic-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.topic-card {
  display: grid;
  grid-template-columns: 40px 1fr;
  align-content: start;
  gap: 4px 12px;
  width: 100%;
  height: 100%;
  padding: 16px 18px;
  border: 1px solid var(--colour-line);
  border-radius: var(--radius);
  background: var(--colour-surface);
  text-align: left;
  cursor: pointer;
}

.topic-card:hover {
  border-color: var(--colour-text);
}

.topic-card__spec {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--colour-text-muted);
}

.topic-card__title {
  font-weight: 700;
  line-height: 1.3;
}

.topic-card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--colour-text-muted);
}

/* Setup */

.setup__group {
  margin: 0 0 24px;
  padding: 0;
  border: 0;
}

.setup__legend {
  margin-bottom: 10px;
  font-weight: 500;
}

.setup__options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.setup__choice {
  position: relative;
}

.setup__radio {
  position: absolute;
  opacity: 0;
}

.setup__choice-label {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 18px;
  border: 1px solid var(--colour-line);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 14px;
  cursor: pointer;
}

.setup__radio:checked + .setup__choice-label {
  border-color: var(--colour-text);
  background: var(--colour-text);
  color: var(--colour-bg);
}

.setup__radio:focus-visible + .setup__choice-label {
  outline: 2px solid var(--colour-accent);
  outline-offset: 3px;
}

.setup__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

/* Runner */

.runner__status {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--colour-text-muted);
}

.runner__track {
  height: 3px;
  margin: 10px 0 28px;
  background: var(--colour-line);
}

.runner__fill {
  height: 100%;
  width: 0;
  background: var(--colour-text);
  transition: width 200ms ease;
}

.runner__prompt {
  margin: 0 0 24px;
  font-size: clamp(19px, 3.6vw, 24px);
  font-weight: 600;
  line-height: 1.4;
  white-space: pre-line;
}

.runner__options {
  display: grid;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.option {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: start;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--colour-line);
  border-radius: var(--radius);
  background: var(--colour-surface);
  text-align: left;
  cursor: pointer;
}

.option:hover:not(:disabled) {
  border-color: var(--colour-text);
}

.option:disabled {
  cursor: default;
}

.option__key {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--colour-text-muted);
  padding-top: 2px;
}

.option__text {
  white-space: pre-line;
}

.option--correct {
  border-color: var(--colour-correct);
  background: rgb(79 179 123 / 0.12);
}

.option--wrong {
  border-color: var(--colour-wrong);
  background: rgb(217 87 74 / 0.12);
}

.runner__feedback {
  margin-bottom: 20px;
  padding: 14px 16px;
  border-left: 3px solid var(--colour-line);
  background: var(--colour-surface);
}

.runner__feedback--correct {
  border-left-color: var(--colour-correct);
}

.runner__feedback--wrong {
  border-left-color: var(--colour-wrong);
}

.runner__verdict {
  margin: 0;
  font-weight: 700;
}

.runner__explanation {
  margin: 4px 0 0;
  color: #d4d4d2;
}

.runner__explanation:empty {
  display: none;
}

.runner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Review */

.review__title {
  margin: 0 0 12px;
  font-size: 20px;
}

.review {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.review__item {
  padding: 14px 16px;
  border: 1px solid var(--colour-line);
  border-left: 3px solid var(--colour-wrong);
  border-radius: var(--radius);
}

.review__item--correct {
  border-left-color: var(--colour-correct);
}

.review__prompt {
  margin: 0 0 8px;
  font-weight: 600;
  white-space: pre-line;
}

.review__answer {
  margin: 0;
  font-size: 14px;
  color: #d4d4d2;
  white-space: pre-line;
}

.review__answer-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--colour-text-muted);
}