/* ===== 오답노트 ===== */
.wrong-note-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
  padding: 16px 20px;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.wrong-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.wrong-filters select {
  padding: 8px 12px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font);
  background: var(--card-bg);
  color: var(--dark);
  cursor: pointer;
  transition: border-color 0.2s;
}
.wrong-filters select:focus { border-color: var(--primary); outline: none; }
.wrong-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.wrong-count-badge {
  padding: 4px 12px;
  background: rgba(108,92,231,0.1);
  color: var(--primary);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
}
.btn-sm {
  padding: 6px 14px !important;
  font-size: 13px !important;
  border-radius: var(--radius-sm) !important;
}
.btn-danger {
  background: var(--danger);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.btn-danger:hover { opacity: 0.85; }

/* 통계 카드 */
.wrong-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}
.wrong-stat-card {
  text-align: center;
  padding: 20px 12px;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s;
}
.wrong-stat-card:hover { transform: translateY(-2px); }
.ws-icon { font-size: 1.5rem; margin-bottom: 8px; }
.ws-value { font-size: 1.8rem; font-weight: 800; color: var(--primary); }
.ws-label { font-size: 0.85rem; color: var(--gray-600); margin-top: 4px; }

/* 오답 카드 */
.wrong-note-list { display: flex; flex-direction: column; gap: 12px; }
.wrong-note-card {
  background: var(--card-bg);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: var(--transition);
  position: relative;
}
.wrong-note-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.wrong-note-card.mastered {
  border-left: 4px solid var(--success);
  opacity: 0.75;
}
.wrong-note-card.mastered:hover { opacity: 1; }
.wnc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 10px;
}
.wnc-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.wnc-cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  background: rgba(108,92,231,0.1);
  color: var(--primary);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
}
.wnc-source {
  color: var(--gray-600);
  font-size: 12px;
}
.wnc-wrong-count {
  padding: 2px 8px;
  background: rgba(225,112,85,0.1);
  color: var(--danger);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.wnc-question {
  font-size: 15px;
  line-height: 1.6;
  color: var(--dark);
  margin-bottom: 12px;
}
.wnc-answers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 13px;
}
.wnc-my-answer {
  padding: 8px 12px;
  background: rgba(225,112,85,0.08);
  border-left: 3px solid var(--danger);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--danger);
}
.wnc-correct-answer {
  padding: 8px 12px;
  background: rgba(0,184,148,0.08);
  border-left: 3px solid var(--success);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--success);
}
.wnc-explanation {
  padding: 12px 16px;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 12px;
  display: none;
}
.wnc-explanation.show { display: block; }
.wnc-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.wnc-actions .btn {
  padding: 6px 14px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}
.wnc-mastered-badge {
  position: absolute;
  bottom: 16px;
  right: 16px;
  padding: 4px 10px;
  background: rgba(0,184,148,0.15);
  color: var(--success);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  z-index: 1;
}

/* 빈 상태 */
.wrong-empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--gray-400);
}
.wrong-empty-icon { font-size: 3rem; margin-bottom: 16px; }
.wrong-empty p { font-size: 16px; margin-bottom: 8px; }
.wrong-empty-sub { font-size: 14px; color: var(--gray-400); }

/* 재풀이 모달 */
.wrong-retry-modal { max-width: 700px; width: 95%; }
.wrong-retry-modal .modal-body { max-height: 60vh; overflow-y: auto; }
.wr-question {
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 16px;
  color: var(--dark);
}
.wr-choices { display: flex; flex-direction: column; gap: 8px; }
.wr-choice {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}
.wr-choice:hover { border-color: var(--primary); background: rgba(108,92,231,0.04); }
.wr-choice.selected { border-color: var(--primary); background: rgba(108,92,231,0.08); }
.wr-choice.correct { border-color: var(--success); background: rgba(0,184,148,0.08); }
.wr-choice.wrong-pick { border-color: var(--danger); background: rgba(225,112,85,0.08); }
.wr-choice-num {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gray-100);
  border-radius: 50%;
  font-weight: 700;
  font-size: 14px;
  color: var(--gray-600);
  flex-shrink: 0;
}
.wr-choice.selected .wr-choice-num { background: var(--primary); color: #fff; }
.wr-choice.correct .wr-choice-num { background: var(--success); color: #fff; }
.wr-choice.wrong-pick .wr-choice-num { background: var(--danger); color: #fff; }
.wr-choice-text { font-size: 14px; line-height: 1.5; }
.wr-result {
  margin-top: 16px;
  padding: 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  line-height: 1.6;
}
.wr-result.correct {
  background: rgba(0,184,148,0.1);
  border: 1px solid var(--success);
  color: var(--success);
}
.wr-result.wrong {
  background: rgba(225,112,85,0.1);
  border: 1px solid var(--danger);
  color: var(--danger);
}

/* 이미지 */
.question-image { margin: 12px 0; }
.question-image img { max-width: 100%; border-radius: var(--radius-sm); }

/* 반응형 */
@media (max-width: 768px) {
  .wrong-stats { grid-template-columns: repeat(2, 1fr); }
  .wrong-note-toolbar { flex-direction: column; align-items: stretch; }
  .wrong-filters { flex-direction: column; }
  .wrong-actions { justify-content: space-between; }
  .wnc-answers { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .wrong-stats { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .wrong-stat-card { padding: 14px 8px; }
  .ws-value { font-size: 1.4rem; }
}

/* 다크 모드 */
body.dark .wrong-note-toolbar,
body.dark .wrong-stat-card,
body.dark .wrong-note-card {
  background: var(--card-bg) !important;
  border-color: var(--gray-200) !important;
}
body.dark .wrong-filters select {
  background: var(--card-bg) !important;
  border-color: var(--gray-200) !important;
  color: var(--dark) !important;
}
body.dark .wnc-question { color: var(--dark) !important; }
body.dark .wnc-explanation { background: var(--gray-100) !important; color: var(--gray-600) !important; }
body.dark .wr-choice { border-color: var(--gray-200) !important; background: var(--card-bg) !important; }
body.dark .wr-choice:hover { border-color: var(--primary) !important; }
body.dark .wr-choice.selected { border-color: var(--primary) !important; background: rgba(108,92,231,0.15) !important; }
body.dark .wr-choice.correct { border-color: var(--success) !important; background: rgba(0,184,148,0.15) !important; }
body.dark .wr-choice.wrong-pick { border-color: var(--danger) !important; background: rgba(225,112,85,0.15) !important; }
body.dark .wr-choice-num { background: var(--gray-200) !important; color: var(--gray-600) !important; }
body.dark .wr-question { color: var(--dark) !important; }