/* ─── Interactive Quiz ─── */
.quiz-answer.quiz-answer--collapsed { display: none; }
.quiz-answer.quiz-answer--expanded {
  animation: quiz-slide-in 0.4s ease;
  transform-origin: top;
}
@keyframes quiz-slide-in {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}
/* 既存の li ベーススタイル(padding/border/border-radius/position:relative)を尊重し、
   インタラクティブ用の cursor / transition / outline のみ追加する */
.quiz-question__choices .quiz-choice {
  cursor: pointer;
  transition: background-color 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
  outline: none;
}
.quiz-question__choices .quiz-choice:hover {
  background-color: #f3f7fb;
  border-color: var(--color-primary);
  transform: translateX(2px);
}
.quiz-question__choices .quiz-choice:focus-visible {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 110, 189, 0.18);
}
/* 解答後の状態: 番号丸(::before)は維持、右側に ::after でステータスマーカー */
.quiz-question__choices .quiz-choice--correct,
.quiz-question__choices .quiz-choice--incorrect,
.quiz-question__choices .quiz-choice--correct-highlight {
  padding-right: 50px !important;
  pointer-events: none;
}
.quiz-question__choices .quiz-choice--correct {
  background-color: #EAF3DE !important;
  color: #3B6D11 !important;
  border-color: #84B048 !important;
  cursor: default !important;
}
.quiz-question__choices .quiz-choice--correct::after {
  content: "◯";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: bold;
  color: #3B6D11;
}
.quiz-question__choices .quiz-choice--incorrect {
  background-color: #FCEBEB !important;
  color: #A32D2D !important;
  border-color: #D86464 !important;
  cursor: default !important;
}
.quiz-question__choices .quiz-choice--incorrect::after {
  content: "✗";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: bold;
  color: #A32D2D;
}
.quiz-question__choices .quiz-choice--correct-highlight {
  background-color: #EAF3DE;
  color: #3B6D11;
  border-color: #84B048;
}
.quiz-question__choices .quiz-choice--correct-highlight::after {
  content: "正解";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: #84B048;
  border-radius: 999px;
  padding: 2px 8px;
  letter-spacing: 0.5px;
}
.quiz-question__choices .quiz-choice--disabled {
  cursor: default;
  pointer-events: none;
  opacity: 0.55;
}
.quiz-controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed #ccd7df;
}
.quiz-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  border-radius: 999px;
  border: 1.5px solid;
  background: #fff;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s, transform 0.1s;
}
.quiz-btn:hover { transform: translateY(-1px); }
.quiz-btn:active { transform: translateY(0); }
.quiz-btn--retry {
  color: #4a4a4a;
  border-color: #c5cdd3;
}
.quiz-btn--retry:hover {
  background: #f3f7fb;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.quiz-btn--next {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.quiz-btn--next:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}
.quiz-progress-banner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background: linear-gradient(90deg, #FFF8E5 0%, #FFFAEE 100%);
  border: 1.5px solid #E8C870;
  border-radius: 10px;
  padding: 12px 18px;
  margin: 0 0 24px;
  font-size: 14px;
  color: #6B4D11;
}
.quiz-progress-banner__icon { font-size: 22px; line-height: 1; }
.quiz-progress-banner__text strong { color: #B57A0E; font-size: 16px; }
.quiz-progress-banner__badge {
  display: inline-block;
  padding: 2px 8px;
  background: #B57A0E;
  color: #fff;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.quiz-progress-banner__sub {
  color: #8a7a4f;
  font-size: 12px;
  margin-left: auto;
}
.quiz-result-banner {
  margin: 24px 0;
  padding: 18px 22px;
  background: #f3f7fb;
  border: 1.5px solid var(--color-primary);
  border-radius: 12px;
  text-align: center;
  animation: quiz-pop 0.5s ease;
}
.quiz-result-banner--perfect {
  background: linear-gradient(135deg, #EAF3DE 0%, #FFF8E5 100%);
  border-color: #84B048;
}
.quiz-result-banner__main {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.quiz-result-banner--perfect .quiz-result-banner__main { color: #3B6D11; }
.quiz-result-banner__badge {
  display: inline-block;
  margin-top: 6px;
  padding: 4px 12px;
  background: #f59e0b;
  color: #fff;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}
.quiz-result-banner__sub {
  display: block;
  margin-top: 6px;
  color: var(--color-text-soft);
  font-size: 13px;
}
@keyframes quiz-pop {
  0% { opacity: 0; transform: scale(0.95); }
  60% { transform: scale(1.02); }
  100% { opacity: 1; transform: scale(1); }
}
@media (max-width: 700px) {
  .quiz-progress-banner__sub { margin-left: 0; }
  .quiz-controls { flex-direction: column-reverse; }
  .quiz-controls .quiz-btn { width: 100%; justify-content: center; }
}