.challenge[hidden],
.challenge [hidden] {
  display: none !important;
}

.challenge-open {
  overflow: hidden;
}

.challenge-translation--blurred {
  filter: blur(0.35rem);
  opacity: 0.65;
  user-select: none;
}

.example .challenge__actions {
  order: 9;
  display: flex;
  align-items: center;
  align-self: flex-start;
  gap: 0.85rem;
  margin-block: 1rem 0;
}

.example .challenge__start {
  min-height: 2.75rem;
  padding: 0.6rem 1.1rem;
  color: var(--color-white);
  background: var(--color-black);
  border: 1px solid var(--color-black);
  border-radius: 0;
  font: inherit;
  font-size: var(--font-size-small-plus);
  font-weight: 700;
  cursor: pointer;
}

.challenge__start:hover {
  color: var(--color-black);
  background: var(--color-light-gray);
}

.challenge__start:focus-visible {
  outline: 3px solid var(--color-black);
  outline-offset: 3px;
}

.challenge__reveal {
  padding: 0;
  color: var(--color-gray);
  background: transparent;
  border: 0;
  font: inherit;
  font-size: var(--font-size-small-plus);
  text-decoration: underline;
  text-underline-offset: 0.15em;
  white-space: nowrap;
  cursor: pointer;
}

.challenge__reveal:hover {
  color: var(--color-black);
}

.challenge__reveal:focus-visible {
  outline: 3px solid var(--color-black);
  outline-offset: 3px;
}

.challenge {
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  color: var(--color-black);
  background: var(--color-white);
  border: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.challenge::backdrop {
  background: var(--color-white);
}

.challenge__content {
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  width: min(52rem, 100%);
  min-height: 100dvh;
  margin-inline: auto;
  padding: clamp(1rem, 4vw, 2.5rem);
}

.challenge__label {
  margin: 0;
  color: var(--color-gray);
  font-size: var(--font-size-tiny);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.challenge h2 {
  margin-block: 0.35rem 0.5rem;
  font-family: var(--font-family-heading);
  font-size: clamp(1.45rem, 4vw, 1.85rem);
  font-weight: 400;
}

.challenge__context {
  display: grid;
  grid-template-areas:
    "summary panel"
    "dialogue panel";
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 1rem 1.5rem;
  margin-block: 1.25rem;
}

.challenge__summary {
  grid-area: summary;
}

.example .challenge__summary > .summary {
  order: initial;
  margin: 0;
}

.challenge__panel {
  grid-area: panel;
  justify-self: end;
  max-width: 100%;
}

.challenge__panel > figure.example_panel {
  float: none;
  order: initial;
  width: fit-content;
  max-width: 100%;
  margin: 0;
  padding: 0;
}

.challenge__japanese {
  grid-area: dialogue;
  margin: 0;
  padding: 1rem;
  background: var(--color-mark-secondary-bg);
  border-left: 0.35rem solid var(--color-black);
}

.challenge__japanese dt {
  margin-block-start: 0.6rem;
  color: var(--color-gray);
  font-family: var(--font-family-jp-accent);
  font-size: var(--font-size-small);
}

.challenge__japanese dt:first-child {
  margin-block-start: 0;
}

.challenge__japanese dd {
  margin-inline-start: 0;
  font-size: var(--font-size-large);
  line-height: 1.95;
}

.challenge__clues-heading {
    margin: 0;
    color: var(--color-gray);
    font-size: var(--font-size-tiny);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.challenge__clues {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-block: 0.25rem 1.5rem;
  padding: 0;
  list-style: none;
}

.challenge__clue {
  display: grid;
  align-content: start;
  gap: 0.25rem;
  margin: 0;
  padding: 0.8rem;
  background: var(--color-mark-secondary-bg);
  border-top: 3px solid var(--color-black);
  font-size: var(--font-size-small);
  cursor: help;
}

.challenge__form {
  font-size: var(--font-size-medium);
  font-weight: 700;
}

.challenge__meaning {
  width: fit-content;
  max-width: 100%;
  filter: blur(0.3rem);
  opacity: 0.65;
  user-select: none;
}

.challenge__form,
.challenge__meaning {
  padding-inline: 0.75rem;
}

.challenge__clue:hover .challenge__meaning,
.challenge__clue:focus .challenge__meaning {
  filter: none;
  opacity: 1;
  user-select: text;
}

.challenge__clue:focus-visible {
  outline: 3px solid var(--color-black);
  outline-offset: 3px;
}

.challenge__choices {
  display: grid;
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  border: 0;
}

.challenge__choices legend {
  margin-block-end: 0.65rem;
  font-weight: 700;
}

.challenge button {
  min-height: 2.75rem;
  padding: 0.6rem 0.85rem;
  color: var(--color-black);
  background: var(--color-white);
  border: 1px solid var(--color-black);
  border-radius: 0;
  font: inherit;
  font-size: var(--font-size-small-plus);
  text-align: left;
  cursor: pointer;
}

.challenge button:hover {
  background: var(--color-light-gray);
}

.challenge button:focus-visible {
  outline: 3px solid var(--color-black);
  outline-offset: 3px;
}

.challenge__choices button[aria-pressed="true"] {
  color: var(--color-white);
  background: var(--color-black);
}

.challenge__footer {
  margin-block-start: auto;
  padding-block-start: 2rem;
}

.challenge .challenge__close {
  width: 100%;
  text-align: center;
}

.challenge__answer {
  margin-block-start: 1.25rem;
  padding-block-start: 1rem;
  border-top: 2px solid var(--color-black);
}

.challenge__answer p {
  margin-block: 0.4rem;
}

.challenge__result {
  font-weight: 700;
}

@media (max-width: 44rem) {
  .challenge__context {
    grid-template-areas:
      "summary"
      "panel"
      "dialogue";
    grid-template-columns: minmax(0, 1fr);
  }

  .challenge__panel {
    justify-self: center;
  }
}

@media (max-width: 36rem) {
  .challenge__clues {
    grid-template-columns: minmax(0, 1fr);
  }
}