/* ========================================
   기억을 읽다 - 읽기 전용 스타일
   ======================================== */

/* ---- 앱 컨테이너 ---- */
.reading-app {
  max-width: 640px;
  margin: 0 auto;
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
}

.reading-app .screen {
  padding: 0;
}

/* ---- 헤더 (서재) ---- */
.reading-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0 var(--spacing-lg);
  height: 56px;
  background: rgba(247, 245, 240, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.reading-header-back {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 28px;
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
}

.reading-header-back:active {
  background: var(--color-surface-alt);
}

.reading-header-title {
  font-size: var(--font-btn);
  font-weight: 700;
  color: var(--color-text);
}

.reading-header-stats {
  margin-left: auto;
  font-size: var(--font-xs);
  color: var(--color-text-hint);
}

/* ---- 배너 ---- */
.library-banner {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.library-banner-emoji {
  font-size: 56px;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.library-banner-title {
  font-size: var(--font-xl);
  font-weight: 800;
  color: var(--color-text);
}

.library-banner-sub {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
  margin-top: var(--spacing-xs);
}

/* ---- 카테고리 필터 칩 ---- */
.filter-chips {
  display: flex;
  gap: 8px;
  padding: var(--spacing-md) var(--spacing-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  background: var(--color-bg);
}

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

.filter-chip {
  padding: 10px 16px;
  border-radius: var(--radius-full);
  font-size: var(--font-sm);
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-sub);
  cursor: pointer;
  flex-shrink: 0;
  font-family: inherit;
  transition: all 0.15s;
}

.filter-chip.active {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  border-color: var(--color-primary);
}

.filter-chip:active {
  transform: scale(0.96);
}

/* ---- 작품 목록 ---- */
.story-list {
  padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.story-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.15s;
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
  min-height: 88px;
  position: relative;
}

.story-card:active {
  transform: scale(0.98);
}

.story-card-emoji {
  font-size: 40px;
  flex-shrink: 0;
  width: 48px;
  text-align: center;
  line-height: 1;
  padding-top: 2px;
}

.story-card-body {
  flex: 1;
  min-width: 0;
}

.story-card-title {
  font-size: var(--font-btn);
  font-weight: 700;
  color: var(--color-text);
}

.story-card-meta {
  font-size: var(--font-xs);
  color: var(--color-text-sub);
  margin-top: 3px;
}

.story-card-status {
  font-size: var(--font-xs);
  color: var(--color-text-hint);
  margin-top: var(--spacing-xs);
}

.story-card-status.reading {
  color: var(--color-primary);
  font-weight: 600;
}

.story-card-status.completed {
  color: var(--color-star);
  font-weight: 600;
}

/* 진행률 바 (작품 카드 내) */
.story-progress-bar {
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  margin-top: var(--spacing-sm);
  overflow: hidden;
}

.story-progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* 완독 뱃지 */
.story-completed-badge {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  font-size: 20px;
}

.story-card-arrow {
  font-size: 20px;
  color: var(--color-text-hint);
  flex-shrink: 0;
  align-self: center;
}

/* ---- 바텀시트 ---- */
.bottom-sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 300;
  opacity: 0;
  transition: opacity 0.3s;
}

.bottom-sheet-overlay.show {
  opacity: 1;
}

.bottom-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: var(--spacing-sm) var(--spacing-lg) var(--spacing-xl);
  z-index: 301;
  transform: translateY(100%);
  transition: transform 0.3s ease-out;
  max-height: 65vh;
  overflow-y: auto;
}

.bottom-sheet.show {
  transform: translateY(0);
}

.bottom-sheet-handle {
  width: 36px;
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  margin: 0 auto var(--spacing-lg);
}

.sheet-story-emoji {
  font-size: 48px;
  text-align: center;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.sheet-story-title {
  font-size: var(--font-lg);
  font-weight: 700;
  text-align: center;
  color: var(--color-text);
}

.sheet-story-meta {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
  text-align: center;
  margin-top: 4px;
}

.sheet-story-desc {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
  text-align: center;
  margin-top: var(--spacing-md);
  line-height: 1.6;
}

.sheet-story-info {
  font-size: var(--font-xs);
  color: var(--color-text-hint);
  text-align: center;
  margin-top: var(--spacing-sm);
}

.sheet-buttons {
  margin-top: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.sheet-buttons .btn {
  margin-top: 0;
}

/* ---- 읽기 화면 ---- */
.reading-top-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0 var(--spacing-md);
  height: 52px;
  background: rgba(247, 245, 240, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.reading-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-size: 28px;
  color: var(--color-text);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  border-radius: var(--radius-md);
}

.reading-back-btn:active {
  background: var(--color-surface-alt);
}

.reading-title {
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--color-text);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.reading-page-info {
  font-size: var(--font-xs);
  color: var(--color-text-hint);
  font-weight: 600;
  flex-shrink: 0;
}

/* 글씨 크기 버튼 */
.font-size-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 18px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.15s;
}

.font-size-btn:active {
  background: var(--color-surface-alt);
  transform: scale(0.92);
}

/* 글씨 크기 토스트 */
.font-size-toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: #fff;
  font-size: var(--font-xs);
  font-weight: 600;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  z-index: 100;
  animation: fadeSlideUp 0.3s ease-out;
  pointer-events: none;
}

/* 진행바 */
.reading-progress {
  height: 3px;
  background: var(--color-border);
}

.reading-progress-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width 0.3s ease;
}

/* 본문 */
.reading-body {
  padding: var(--spacing-lg) 24px;
  font-size: var(--font-md);
  line-height: 1.9;
  letter-spacing: 0.03em;
  color: var(--color-text);
  word-break: keep-all;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

.reading-body p {
  text-indent: 1em;
  margin-bottom: 1.2em;
}

.reading-body p:last-child {
  margin-bottom: 0;
}

/* 페이지 전환 애니메이션 */
.reading-body.page-enter-next {
  animation: pageSlideLeft 200ms ease-out;
}

.reading-body.page-enter-prev {
  animation: pageSlideRight 200ms ease-out;
}

@keyframes pageSlideLeft {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pageSlideRight {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

/* 페이지 네비 (하단) */
.page-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  flex-shrink: 0;
}

.page-nav-btn {
  min-width: 80px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--color-primary);
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  border-radius: var(--radius-md);
  padding: 0 var(--spacing-md);
}

.page-nav-btn:active {
  background: var(--color-primary-light);
}

.page-nav-btn.disabled {
  opacity: 0.3;
  pointer-events: none;
}

.page-nav-btn.quiz-action {
  color: var(--color-accent);
  font-weight: 700;
}

.page-nav-left {
  display: flex;
  align-items: center;
  gap: 0;
}

.page-nav-first {
  min-width: 44px;
  padding: 0 var(--spacing-xs);
  color: var(--color-text-hint);
  font-size: var(--font-sm);
}

.page-nav-current {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
  font-weight: 600;
}

/* ---- 첫 진입 안내 툴팁 ---- */
.tap-hint-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.tap-hint-text {
  background: var(--color-surface);
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-lg);
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--color-text);
  text-align: center;
  line-height: 1.6;
  box-shadow: var(--shadow-lg);
}

/* ---- 퀴즈 브릿지 ---- */
#bridge-screen {
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
  background: var(--color-surface-alt);
}

#bridge-screen.active {
  display: flex;
}

.bridge-card {
  text-align: center;
  max-width: 360px;
  width: 100%;
  animation: fadeSlideUp 0.4s ease-out;
}

.bridge-emoji {
  font-size: 64px;
  display: block;
  margin-bottom: var(--spacing-lg);
}

.bridge-title {
  font-size: var(--font-lg);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
}

.bridge-info {
  font-size: var(--font-sm);
  color: var(--color-text-hint);
  margin-top: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.bridge-start-btn {
  margin-bottom: var(--spacing-md);
}

.bridge-skip-btn {
  background: none;
  border: none;
  font-family: inherit;
  font-size: var(--font-sm);
  color: var(--color-text-hint);
  cursor: pointer;
  padding: var(--spacing-sm);
  text-decoration: underline;
}

/* ---- 퀴즈 화면 ---- */
#quiz-screen {
  padding: var(--spacing-md);
}

.quiz-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.quiz-progress-dots {
  display: flex;
  gap: 8px;
}

.quiz-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-border);
  transition: all 0.2s;
}

.quiz-dot.current {
  background: var(--color-primary);
  transform: scale(1.2);
}

.quiz-dot.done {
  background: var(--color-primary);
}

.quiz-dot.wrong {
  background: var(--color-encourage);
}

.quiz-combo {
  font-size: var(--font-xs);
  font-weight: 700;
  color: var(--color-star);
  min-width: 60px;
  text-align: right;
}

.quiz-question-area {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl) var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
  text-align: center;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.quiz-question-text {
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.6;
  word-break: keep-all;
}

.quiz-context {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  line-height: 1.6;
  word-break: keep-all;
}

.quiz-blank {
  display: inline;
  border-bottom: 3px dashed var(--color-primary);
  padding: 2px 16px;
  min-width: 60px;
  font-weight: 700;
  color: var(--color-primary);
}

/* 선택지 */
.quiz-choices-area {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.quiz-choice {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-md);
  font-weight: 500;
  color: var(--color-text);
  min-height: var(--touch-min);
  transition: all 0.15s;
  text-align: left;
  width: 100%;
  word-break: keep-all;
}

.quiz-choice:active {
  transform: scale(0.98);
}

.quiz-choice.correct {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: #2D7A50;
  font-weight: 700;
}

.quiz-choice.wrong {
  background: #FFF3E0;
  border-color: var(--color-encourage);
  color: #C47600;
}

.quiz-choice.disabled {
  pointer-events: none;
  opacity: 0.6;
}

.quiz-choice-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-surface-alt);
  font-size: var(--font-xs);
  font-weight: 700;
  color: var(--color-text-sub);
  flex-shrink: 0;
}

.quiz-choice.correct .quiz-choice-number {
  background: var(--color-primary);
  color: var(--color-text-on-primary);
}

.quiz-choice.wrong .quiz-choice-number {
  background: var(--color-encourage);
  color: #FFFFFF;
}

/* 피드백 */
.quiz-feedback {
  margin-top: var(--spacing-md);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  text-align: center;
  animation: fadeSlideUp 0.3s ease-out;
}

.quiz-feedback.correct {
  background: var(--color-primary-light);
  color: #2D7A50;
}

.quiz-feedback.wrong {
  background: #FFF3E0;
  color: #C47600;
}

.quiz-feedback-reaction {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.quiz-feedback-explain {
  font-size: var(--font-sm);
  line-height: 1.5;
}

.quiz-feedback-next {
  font-size: var(--font-xs);
  color: var(--color-text-hint);
  margin-top: var(--spacing-sm);
}

/* ---- 결과 화면 ---- */
#result-screen {
  padding: var(--spacing-xl) var(--spacing-lg);
  align-items: center;
}

.result-header {
  font-size: var(--font-xl);
  font-weight: 800;
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.result-stars {
  margin-bottom: var(--spacing-sm);
}

.result-message {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.result-info-card {
  width: 100%;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl) var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-xl);
}

.result-story-title {
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--color-text);
}

.result-story-progress {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
  margin-top: var(--spacing-xs);
}

.result-progress-bar {
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  margin-top: var(--spacing-sm);
  overflow: hidden;
}

.result-progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 3px;
  transition: width 0.6s ease;
}

.result-quiz-score {
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--spacing-lg);
}

.result-streak {
  font-size: var(--font-sm);
  color: var(--color-accent);
  font-weight: 600;
  margin-top: var(--spacing-xs);
}

.result-actions {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.result-actions .btn {
  margin-top: 0;
}

.related-game-btn {
  background: #E8F5E9;
  color: #2D7A50;
  border: 2px solid #A5D6A7;
  font-weight: 700;
}

.related-game-btn:active {
  background: #C8E6C9;
  transform: scale(0.98);
}

.share-result-btn {
  position: relative;
}

.share-copied {
  position: absolute;
  top: -36px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: #fff;
  font-size: var(--font-xs);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  animation: fadeSlideUp 0.3s ease-out;
}

/* ---- 읽기 화면 풀 높이 ---- */
#reading-screen.active {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
}

/* ---- 반응형 ---- */
@media (max-width: 360px) {
  .library-banner-emoji {
    font-size: 44px;
  }

  .library-banner-title {
    font-size: var(--font-lg);
  }

  .reading-body {
    padding: var(--spacing-md) 20px;
    font-size: 18px;
    line-height: 1.85;
  }

  .story-card {
    padding: var(--spacing-md);
  }

  .quiz-question-area {
    padding: var(--spacing-lg) var(--spacing-md);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reading-body.page-enter-next,
  .reading-body.page-enter-prev {
    animation: none;
  }
}

/* ---- 서재 퀴즈 배지 ---- */
.story-quiz-badge {
  font-size: var(--font-xs);
  color: var(--color-text-hint);
  margin-top: var(--spacing-xs);
}

.story-quiz-badge.done {
  color: var(--color-star);
  font-weight: 600;
}

/* ---- 바텀시트 퀴즈 섹션 ---- */
.sheet-quiz-section {
  margin-top: var(--spacing-md);
}

.sheet-quiz-divider {
  height: 1px;
  background: var(--color-border);
  margin-bottom: var(--spacing-md);
}

.btn-quiz-direct {
  background: #EDE7F6;
  color: #5E35B1;
  border: 2px solid #CE93D8;
  font-weight: 700;
}

.btn-quiz-direct:active {
  background: #D1C4E9;
  transform: scale(0.98);
}

/* ---- 바텀시트 게임하기 섹션 ---- */
.sheet-game-section {
  margin-top: var(--spacing-sm);
}

.btn-game-direct {
  display: block;
  text-align: center;
  text-decoration: none;
  background: #E8F5E9;
  color: #2E7D32;
  border: 2px solid #81C784;
  font-weight: 700;
  margin-top: var(--spacing-sm);
}

.btn-game-direct:active {
  background: #C8E6C9;
  transform: scale(0.98);
}

/* ---- 결과 - 퀴즈 더 풀기 ---- */
.btn-quiz-more {
  background: #EDE7F6;
  color: #5E35B1;
  border: 2px solid #CE93D8;
  font-weight: 700;
}

.btn-quiz-more:active {
  background: #D1C4E9;
  transform: scale(0.98);
}

/* ---- 결과 - 관련 게임 ---- */
.related-games {
  width: 100%;
}

.related-games-title {
  font-size: var(--font-sm);
  font-weight: 700;
  color: var(--color-text-sub);
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.related-games-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
}

.related-game-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-md);
  background: #E8F5E9;
  border: 2px solid #A5D6A7;
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: transform 0.1s;
  cursor: pointer;
}

.related-game-card:active {
  transform: scale(0.97);
}

.related-game-emoji {
  font-size: 28px;
}

.related-game-name {
  font-size: var(--font-sm);
  font-weight: 700;
  color: #2D7A50;
}

.related-game-desc {
  font-size: var(--font-xs);
  color: #558B2F;
  text-align: center;
  line-height: 1.3;
}

/* ---- 바텀시트 모드 선택 카드 ---- */
.sheet-mode-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.sheet-mode-card {
  background: var(--color-surface-alt);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  cursor: pointer;
  transition: all 0.15s;
}

.sheet-mode-card:active {
  transform: scale(0.97);
}

.sheet-mode-card.has-progress {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.mode-card-icon {
  font-size: 32px;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.mode-card-label {
  font-size: var(--font-btn);
  font-weight: 700;
  color: var(--color-text);
}

.mode-card-info {
  font-size: var(--font-xs);
  color: var(--color-text-sub);
  margin-top: 4px;
  line-height: 1.4;
}

.mode-card-status {
  font-size: var(--font-xs);
  font-weight: 600;
  color: var(--color-primary);
  margin-top: var(--spacing-sm);
}

.mode-card-btn {
  display: inline-block;
  margin-top: var(--spacing-sm);
  padding: 8px 16px;
  background: var(--color-primary);
  color: var(--color-text-on-primary);
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}

.mode-card-btn:active {
  opacity: 0.85;
}

/* ---- 원문 로딩 오버레이 ---- */
.reading-loading {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.reading-loading-card {
  text-align: center;
  padding: var(--spacing-xl);
  animation: fadeSlideUp 0.3s ease-out;
}

.reading-loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.reading-loading-text {
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--color-text);
}

.reading-loading-sub {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
  margin-top: var(--spacing-xs);
}

/* ---- 원문 뱃지 ---- */
.original-badge {
  display: inline-block;
  padding: 2px 8px;
  background: #E8F5E9;
  color: #2D7A50;
  font-size: var(--font-xs);
  font-weight: 700;
  border-radius: var(--radius-sm);
  margin-left: 6px;
  vertical-align: middle;
}

/* ---- 에러 오버레이 ---- */
.reading-error-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(247, 245, 240, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.reading-error-card {
  text-align: center;
  max-width: 320px;
  padding: var(--spacing-xl);
  animation: fadeSlideUp 0.3s ease-out;
}

.reading-error-emoji {
  font-size: 48px;
  display: block;
  margin-bottom: var(--spacing-md);
}

.reading-error-title {
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.reading-error-msg {
  font-size: var(--font-sm);
  color: var(--color-text-sub);
  line-height: 1.5;
  margin-bottom: var(--spacing-lg);
}

.btn-sm {
  padding: 10px 20px;
  font-size: var(--font-sm);
  min-height: 44px;
}

/* ---- 바텀시트 단일 모드 (원문 없는 작품) ---- */
.sheet-single-mode {
  margin-top: var(--spacing-lg);
}

/* ---- 모드 카드 반응형 ---- */
@media (max-width: 360px) {
  .sheet-mode-cards {
    gap: 8px;
  }

  .sheet-mode-card {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  .mode-card-icon {
    font-size: 28px;
  }

  .mode-card-label {
    font-size: var(--font-sm);
  }
}