/* 필터 섹션 */
.filter-section {
  margin-bottom: 2rem;
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.filter-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.filter-row:last-child {
  margin-bottom: 0;
}

.filter-label {
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

/* 장르 칩 */
.genre-chips {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.chip {
  padding: 0.4rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 50px;
  font-size: 0.85rem;
  background-color: var(--card-bg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.chip:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.chip.chip-active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

/* 정렬, 옵션 필터 */
.sort-filter {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.sort-filter .select-input {
  width: auto;
  min-width: 140px;
}

/* 정렬 + 기간 행 — 같은 row지만 작은 화면에선 wrap */
.sort-period-row {
  gap: 1rem 1.5rem;
  flex-wrap: wrap;
}

.options-filter {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary-color);
}

/* 검색 필터 */
.search-filter {
  display: flex;
  gap: 0.5rem;
  flex: 1;
  min-width: 200px;
}

.search-input {
  flex: 1;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-size: 0.9rem;
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* 광고 배너 */
.promo-banner-section {
  margin-bottom: 1.5rem;
}

.promo-banner-header {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  letter-spacing: 0.3px;
}

.promo-banner {
  display: block;
  position: relative;
  border-radius: var(--border-radius);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
}

.promo-banner:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* 기본 모드: 썸네일 + 제목 */
.promo-banner-inner {
  display: flex;
  align-items: stretch;
  height: 140px;
}

.promo-banner-thumbnail {
  width: 260px;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--border-color);
}

.promo-banner-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.promo-banner-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1rem 1.5rem;
  min-width: 0;
}

.promo-banner-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.promo-banner-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* 커스텀 이미지 모드: 이미지만 꽉 채움 */
.promo-banner-custom {
  width: 100%;
  height: 160px;
  overflow: hidden;
}

.promo-banner-custom img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 광고 신고 버튼 */
.promo-report-btn {
  position: absolute;
  bottom: 6px;
  right: 6px;
  background: rgba(0,0,0,0.5);
  border: none;
  border-radius: 4px;
  color: white;
  font-size: 0.75rem;
  padding: 2px 6px;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
  z-index: 2;
}

.promo-report-btn:hover {
  opacity: 1;
}

/* 퀴즈 그리드 */
.quiz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* 퀴즈 카드 */
.quiz-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius);
  overflow: visible;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.quiz-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.quiz-card-thumbnail {
  width: 100%;
  height: 180px;
  background-color: var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.quiz-card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.quiz-card-thumbnail .no-thumbnail {
  font-size: 3rem;
  color: var(--text-secondary);
}

/* 퀴즈 유형 아이콘 뱃지 */
.quiz-badges {
  position: absolute;
  top: 8px;
  left: 8px;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.badge {
  padding: 2px 8px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 3px;
  backdrop-filter: blur(4px);
}

.badge-text { background-color: rgba(59, 130, 246, 0.85); color: white; }
.badge-image { background-color: rgba(16, 185, 129, 0.85); color: white; }
.badge-video { background-color: rgba(239, 68, 68, 0.85); color: white; }
.badge-audio { background-color: rgba(168, 85, 247, 0.85); color: white; }
.badge-subjective { background-color: rgba(245, 158, 11, 0.85); color: white; }
.badge-multiple { background-color: rgba(6, 182, 212, 0.85); color: white; }

/* 업데이트 표시 */
.update-indicator {
  position: absolute;
  top: 8px;
  right: 8px;
  background-color: var(--warning-color);
  color: white;
  padding: 2px 8px;
  border-radius: 50px;
  font-size: 0.7rem;
  font-weight: 600;
}

/* 퀴즈 카드 바디 */
.quiz-card-body {
  padding: 1rem;
}

.quiz-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.quiz-card-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 잘린 설명 호버 시 전체 표시 (fixed portal, JS로 위치 계산) */
.quiz-desc-tooltip {
  position: fixed;
  max-width: 320px;
  background: #1e293b;
  color: #f1f5f9;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.8rem;
  line-height: 1.5;
  white-space: normal;
  word-break: break-word;
  z-index: 10000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  pointer-events: none;
}
[data-theme="dark"] .quiz-desc-tooltip { background: #475569; }

.quiz-card-genres {
  display: flex;
  gap: 0.3rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.genre-tag {
  padding: 2px 8px;
  background-color: var(--bg-color);
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.genre-tag.hashtag {
  background-color: rgba(16, 185, 129, 0.12);
  color: #10b981;
  cursor: pointer;
}
.genre-tag.hashtag:hover {
  background-color: rgba(16, 185, 129, 0.22);
}

.quiz-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.quiz-card-creator {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.quiz-card-creator img {
  width: 20px;
  height: 20px;
  border-radius: 50%;
}

.quiz-card-stats {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 3px;
}

.stat-item.positive { color: var(--success-color); }
.stat-item.negative { color: var(--danger-color); }

/* 날짜 + 방 만들기 */
.quiz-card-date-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.4rem;
}

.quiz-card-date {
  font-size: 0.75rem;
  color: #94a3b8;
}

.quiz-card-date-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.quiz-progress {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  position: relative;
  cursor: help;
}

.quiz-progress .progress-tip-text {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: #1e293b;
  color: #f1f5f9;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 400;
  white-space: normal;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  min-width: 180px;
  line-height: 1.5;
  pointer-events: none;
}

.quiz-progress .progress-tip-text::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: #1e293b;
}

.quiz-progress:hover .progress-tip-text {
  display: block;
}

[data-theme="dark"] .quiz-progress .progress-tip-text {
  background: #334155;
}
[data-theme="dark"] .quiz-progress .progress-tip-text::after {
  border-top-color: #334155;
}

.quiz-progress.progress-none {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

.quiz-progress.progress-partial {
  color: #d97706;
  background: rgba(217, 119, 6, 0.1);
}

.quiz-progress.progress-complete {
  color: #16a34a;
  background: rgba(22, 163, 74, 0.1);
}

.btn-create-room {
  padding: 3px 10px;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-create-room:hover {
  opacity: 0.85;
}

.quiz-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--border-color);
}

.quiz-question-count {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.quiz-card-actions {
  display: flex;
  gap: 0.5rem;
}

.action-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  font-size: 1.2rem;
  transition: var(--transition);
  border-radius: 50%;
}

.action-btn:hover {
  background-color: var(--bg-color);
}

.action-btn.active {
  color: var(--danger-color);
}

.action-btn.report-btn {
  font-size: 0.9rem;
  opacity: 0.5;
}
.action-btn.report-btn:hover {
  opacity: 1;
}

/* 빈 상태 메시지 */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  grid-column: 1 / -1;
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.empty-state-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.empty-state-desc {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

/* 페이지네이션 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.page-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  background-color: var(--card-bg);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.9rem;
}

.page-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.page-btn.active {
  background-color: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 제작자 드롭다운 (카드) */
.card-creator-dd-wrapper {
  position: relative;
  display: inline-block;
}

.card-creator-trigger {
  cursor: pointer;
  user-select: none;
}

.card-creator-trigger:hover {
  color: var(--primary-color);
}

.card-creator-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  min-width: 220px;
  z-index: 100;
  overflow: hidden;
}

.card-creator-dropdown.show {
  display: block;
}

.creator-dropdown-item {
  display: block;
  width: 100%;
  padding: 0.7rem 1rem;
  border: none;
  background: none;
  text-align: left;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--text-color);
  transition: background 0.15s;
}

.creator-dropdown-item:hover {
  background: var(--bg-color);
}

.creator-dropdown-item.danger {
  color: var(--danger-color);
}

.creator-dropdown-item.danger:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* 다크모드 오버라이드 */
[data-theme="dark"] .promo-report-btn { background: rgba(255,255,255,0.15); }

/* ===== 태블릿 반응형 (768px 이하) ===== */
@media (max-width: 768px) {
  .filter-section {
    padding: 1rem;
  }

  .filter-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .genre-filter {
    width: 100%;
  }

  .genre-chips {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 0.5rem;
  }

  .genre-chips::-webkit-scrollbar { display: none; }

  .sort-filter {
    width: 100%;
  }

  .sort-filter .select-input {
    width: 100%;
    min-width: 0;
  }

  /* 정렬 + 기간 행: 모바일에서 한 줄에 두 그룹 wrap, 안 되면 자동 두 줄 */
  .sort-period-row {
    flex-direction: column;
    gap: 0.6rem;
  }

  .sort-period-row .sort-filter {
    flex-wrap: nowrap;
  }

  /* 기간(년/월) 두 select가 한 줄에 나란히 */
  .sort-period-row .sort-filter .select-input {
    flex: 1 1 0;
    min-width: 0;
  }

  .options-filter {
    width: 100%;
    flex-wrap: wrap;
    gap: 0.4rem 0.75rem;
  }

  .search-filter {
    width: 100%;
    min-width: unset;
    flex-wrap: wrap;
  }

  .search-filter .select-input {
    min-width: 0;
    flex: 0 0 auto;
  }

  .search-filter .search-input {
    flex: 1 1 0;
    min-width: 80px;
  }

  .quiz-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
  }

  .quiz-card-thumbnail {
    height: 150px;
  }

  .quiz-card-title {
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

/* ===== 모바일 반응형 (480px 이하) ===== */
@media (max-width: 480px) {
  .filter-section {
    padding: 0.75rem;
    overflow: hidden;
  }

  .chip {
    padding: 0.3rem 0.75rem;
    font-size: 0.8rem;
  }

  .promo-banner-inner {
    height: 110px;
  }

  .promo-banner-thumbnail {
    width: 140px;
  }

  .promo-banner-info {
    padding: 0.75rem 1rem;
  }

  .promo-banner-title {
    font-size: 0.95rem;
  }

  .promo-banner-subtitle {
    font-size: 0.8rem;
  }

  .promo-banner-custom {
    height: 120px;
  }

  .quiz-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .quiz-card {
    display: flex;
    flex-direction: row;
    min-height: 130px;
  }

  .quiz-card-thumbnail {
    width: 140px;
    min-width: 140px;
    align-self: stretch;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
  }

  .quiz-badges {
    top: 4px;
    left: 4px;
    gap: 2px;
  }

  .badge {
    font-size: 0.55rem;
    padding: 1px 4px;
  }

  .update-indicator {
    font-size: 0.55rem;
    padding: 1px 4px;
  }

  .quiz-card-body {
    padding: 0.6rem 0.75rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
    min-width: 0;
  }

  .quiz-card-title {
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
    line-height: 1.3;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .quiz-card-desc {
    font-size: 0.8rem;
    -webkit-line-clamp: 2;
    margin-bottom: 0.25rem;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .quiz-card-genres {
    margin-bottom: 0.25rem;
  }

  .quiz-card-meta {
    font-size: 0.75rem;
  }

  .quiz-card-footer {
    display: none;
  }

  .pagination {
    gap: 0.25rem;
  }

  .page-btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
  }
}