.single-question-entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin: 28px 0 0;
  padding: 22px 6px;
  border-block: 1px solid var(--exam-border);
}

.history-quiz-launch {
  display: grid;
  gap: 14px;
  margin-top: 44px;
  padding-block: 30px;
  border-block: 1px solid var(--exam-border);
}

.history-quiz-launch button {
  width: 100%;
  min-height: 88px;
  border: 1px solid var(--exam-primary);
  border-radius: 10px;
  background: var(--exam-primary);
  color: var(--exam-bg);
  font: inherit;
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 900;
  cursor: pointer;
}

.history-quiz-launch button:hover {
  filter: brightness(1.08);
}

.history-quiz-launch button:focus-visible {
  outline: 3px solid var(--exam-ring);
  outline-offset: 3px;
}

.history-quiz-launch a {
  justify-self: center;
  padding: 5px 8px;
  color: var(--exam-muted);
  font-size: 13px;
  font-weight: 800;
}

.history-quiz-launch a:hover,
.history-quiz-launch a:focus-visible {
  color: var(--exam-primary);
}

.history-quiz-launch a:focus-visible {
  outline: 3px solid var(--exam-ring);
  outline-offset: 2px;
}

.single-question-entry div {
  display: grid;
  gap: 6px;
}

.single-question-entry strong {
  color: var(--exam-fg);
  font-size: 18px;
}

.single-question-entry span {
  color: var(--exam-muted);
  line-height: 1.55;
}

.single-question-entry a,
.single-question-empty a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid var(--exam-border-strong);
  border-radius: 7px;
  color: var(--exam-fg);
  font-size: 13px;
  font-weight: 800;
}

.single-question-entry a:hover,
.single-question-entry a:focus-visible,
.single-question-empty a:hover,
.single-question-empty a:focus-visible {
  border-color: var(--exam-primary);
  color: var(--exam-primary);
}

.single-question-entry a:focus-visible,
.single-question-empty a:focus-visible,
.single-question-answer summary:focus-visible {
  outline: 3px solid var(--exam-ring);
  outline-offset: 2px;
}

.single-question-list {
  margin-top: 44px;
}

.single-question-random {
  display: flex;
  justify-content: flex-end;
  margin-top: 24px;
}

.single-question-random button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--exam-primary);
  border-radius: 7px;
  background: var(--exam-primary);
  color: var(--exam-bg);
  font: inherit;
  font-size: 13px;
  font-weight: 850;
  cursor: pointer;
}

.single-question-random button:hover:not(:disabled),
.single-question-random button:focus-visible {
  filter: brightness(1.08);
}

.single-question-random button:focus-visible {
  outline: 3px solid var(--exam-ring);
  outline-offset: 2px;
}

.single-question-random button:disabled {
  border-color: var(--exam-border);
  background: var(--exam-raised);
  color: var(--exam-muted);
  cursor: default;
}

.single-question-list > header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.single-question-list h2 {
  margin: 0;
  color: var(--exam-fg);
  font-size: clamp(26px, 4vw, 40px);
}

.single-question-list > header span {
  color: var(--exam-muted);
}

.single-question-empty {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr) auto;
  gap: 20px;
  align-items: center;
  padding: 28px 6px;
  border-block: 1px solid var(--exam-border);
}

.single-question-empty strong {
  color: var(--exam-fg);
}

.single-question-empty span {
  color: var(--exam-muted);
  line-height: 1.6;
}

.single-question-main {
  max-width: 980px;
  min-width: 0;
}

.single-question-article {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  min-width: 0;
}

.single-question-head {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--exam-border);
}

.single-question-head p {
  margin: 0 0 12px;
  color: var(--exam-primary);
  font-size: 13px;
  font-weight: 800;
}

.single-question-head h1 {
  margin: 0;
  color: var(--exam-fg);
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.16;
  word-break: keep-all;
}

.single-question-prompt,
.single-question-answer {
  min-width: 0;
  max-width: 100%;
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--exam-border);
  border-radius: 10px;
  background: var(--exam-surface);
}

.single-question-prompt h2,
.single-question-answer h2 {
  margin: 0 0 16px;
  color: var(--exam-fg);
  font-size: 18px;
}

.single-question-prompt > p,
.single-question-answer p {
  color: var(--exam-fg);
  font-size: 17px;
  line-height: 1.8;
  white-space: pre-line;
}

.single-question-material {
  margin-bottom: 24px;
  padding: 20px;
  border-left: 3px solid var(--exam-primary);
  background: var(--exam-raised);
}

.single-question-material strong {
  color: var(--exam-primary);
  font-size: 13px;
}

.single-question-material p {
  margin: 10px 0 0;
  color: var(--exam-fg);
  line-height: 1.75;
  white-space: pre-line;
}

.single-question-media {
  margin: 0 0 24px;
}

.single-question-media img {
  width: 100%;
  max-height: 520px;
  display: block;
  object-fit: contain;
  border-radius: 8px;
  background: var(--exam-raised);
}

.single-question-media figcaption {
  margin-top: 8px;
  color: var(--exam-muted);
  font-size: 12px;
}

.single-question-timeline ol {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.single-question-timeline li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
}

.single-question-choices,
.single-question-answer ol,
.single-question-answer ul {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.single-question-choices li,
.single-question-answer ol li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--exam-border);
  border-radius: 7px;
  color: var(--exam-muted);
  line-height: 1.65;
}

.single-question-choices li[role="button"] {
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.single-question-choices:not(.is-graded) li[role="button"]:hover {
  border-color: var(--exam-primary);
  color: var(--exam-fg);
}

.single-question-choices li[role="button"]:focus-visible {
  outline: 3px solid var(--exam-ring);
  outline-offset: 2px;
}

.single-question-choices.is-graded li[role="button"] {
  cursor: default;
}

.single-question-choices.is-graded .is-correct {
  border-color: #18864b;
  background: rgba(24, 134, 75, 0.1);
  color: var(--exam-fg);
}

.single-question-choices.is-graded .is-incorrect {
  border-color: #d74b4b;
  background: rgba(215, 75, 75, 0.09);
  color: var(--exam-fg);
}

.single-question-result {
  margin: 14px 0 0;
  padding: 13px 16px;
  border-radius: 7px;
  font-weight: 850;
}

.single-question-result.is-correct {
  background: rgba(24, 134, 75, 0.1);
  color: #14733f;
}

.single-question-result.is-incorrect {
  background: rgba(215, 75, 75, 0.09);
  color: #b93636;
}

.single-question-choices li > span,
.single-question-answer ol li > span,
.single-question-material p {
  min-width: 0;
  overflow-wrap: anywhere;
}

.single-question-choices b,
.single-question-answer ol b {
  color: var(--exam-primary);
}

.single-question-choices .is-answer {
  border-color: var(--exam-border);
}

.single-question-answer summary {
  color: var(--exam-fg);
  font-size: 18px;
  font-weight: 850;
  cursor: pointer;
}

.single-question-answer[open] summary {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--exam-border);
}

.single-question-answer h2 {
  margin-top: 30px;
}

.single-question-answer ul {
  padding-left: 22px;
  color: var(--exam-muted);
  line-height: 1.7;
  list-style: disc;
}

.single-question-answer .single-answer-number {
  color: var(--exam-primary);
  font-size: 20px;
  font-weight: 850;
}

.single-question-ad {
  margin-block: 8px;
}

.single-question-list-ad {
  margin-block: 24px;
}

.history-app-banner {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  margin-block: 28px;
  padding: 18px 20px;
  border: 1px solid var(--exam-border-strong);
  border-left: 4px solid var(--exam-primary);
  border-radius: 10px;
  background: var(--exam-surface);
}

.history-app-banner > img {
  width: 80px;
  height: 80px;
  display: block;
  border-radius: 16px;
}

.history-app-banner > span {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.history-app-banner small {
  color: var(--exam-primary);
  font-size: 11px;
  font-weight: 900;
}

.history-app-banner strong {
  color: var(--exam-fg);
  font-size: 20px;
}

.history-app-banner em {
  color: var(--exam-muted);
  font-size: 14px;
  font-style: normal;
  line-height: 1.5;
}

.history-app-banner > a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid var(--exam-primary);
  border-radius: 8px;
  background: var(--exam-primary);
  color: var(--exam-on-primary);
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.history-app-banner > a:hover { background: var(--exam-primary-strong); }
.history-app-banner > a:focus-visible { outline: 3px solid var(--exam-ring); outline-offset: 2px; }

.single-question-related-section {
  margin-top: 24px;
}

.single-question-related-section > h2 {
  margin: 0 0 12px;
  color: var(--exam-fg);
  font-size: 18px;
  font-weight: 850;
}

.single-question-related {
  margin-top: 0;
}

@media (max-width: 640px) {
  .history-app-banner {
    grid-template-columns: 58px minmax(0, 1fr);
    gap: 14px;
    padding: 16px;
  }

  .history-app-banner > img { width: 58px; height: 58px; border-radius: 12px; }
  .history-app-banner > a { grid-column: 1 / -1; width: 100%; }

  .single-question-head h1 {
    font-size: clamp(29px, 9vw, 38px);
    overflow-wrap: anywhere;
    word-break: normal;
  }

  .single-question-prompt,
  .single-question-answer {
    padding: 22px;
  }

  .single-question-media img {
    max-width: 100%;
  }

  .single-question-entry,
  .single-question-empty,
  .history-quiz-start {
    grid-template-columns: 1fr;
  }

  .history-quiz-actions {
    flex-direction: column;
  }

  .history-quiz-actions button,
  .history-quiz-actions a {
    width: 100%;
  }

  .single-question-entry a,
  .single-question-empty a {
    width: 100%;
  }

  .single-question-list > header {
    align-items: start;
    flex-direction: column;
    gap: 6px;
  }

  .single-question-random button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .single-question-entry a,
  .single-question-empty a,
  .single-question-random button {
    transition: none;
  }
}