/* ============================================================
   Blankr. Minimalist Mobile-First Design System
   ============================================================ */

:root {
  --phone-width: 412px;
  --phone-height: 892px;
  --bg-desktop: #e2e8f0;

  --bg-primary: #f8f9fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f3f5;
  --bg-subtle: #edf0f3;
  --text-main: #111827;
  --text-muted: #6b7280;
  --text-sub: #9ca3af;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-focus: #2563eb;
  
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: rgba(37, 99, 235, 0.08);
  --accent-glow: rgba(37, 99, 235, 0.2);

  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.08);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --font-family: "Pretendard Variable", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 다크 테마 */
[data-theme="dark"] {
  --bg-desktop: #070a0f;

  --bg-primary: #0f141c;
  --bg-card: #18202c;
  --bg-card-hover: #202b3b;
  --bg-subtle: #243042;
  --text-main: #f9fafb;
  --text-muted: #94a3b8;
  --text-sub: #64748b;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;

  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-light: rgba(59, 130, 246, 0.15);
  --accent-glow: rgba(59, 130, 246, 0.3);

  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.6);
}

/* 기본 리셋 */
html {
  scrollbar-gutter: stable;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-desktop);
  color: var(--text-main);
  line-height: 1.5;
  letter-spacing: -0.015em;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 481px) {
  body {
    padding: 24px 0;
    box-sizing: border-box;
  }
}

/* 모바일 디바이스 접속 시 배경색을 앱과 동일하게 유지하고 전체화면 전환 */
@media (max-width: 480px) {
  body {
    background-color: var(--bg-primary);
    padding: 0;
    display: block;
  }
}

/* 범위 선택 뷰어 오픈 시 모바일/안드로이드 스크롤 락 */
html.viewer-scroll-locked,
body.viewer-scroll-locked {
  overflow: hidden !important;
  height: 100% !important;
  height: 100dvh !important;
  overscroll-behavior: none !important;
}

.app-container {
  width: 100%;
  max-width: var(--phone-width);
  background-color: var(--bg-primary);
  display: flex;
  flex-direction: column;
  position: relative;
}

/* 데스크톱 브라우저 접속 시: 안드로이드 플래그십 (412x892 / 약 20:9) 실물 기기 프레임 */
@media (min-width: 481px) {
  .app-container {
    height: min(var(--phone-height), calc(100vh - 48px));
    border-radius: 42px;
    overflow: hidden;
    box-shadow: 
      0 24px 50px -12px rgba(0, 0, 0, 0.25),
      0 0 0 10px #1e293b,
      0 0 0 11px rgba(255, 255, 255, 0.12);
  }

  [data-theme="dark"] .app-container {
    box-shadow: 
      0 24px 60px -12px rgba(0, 0, 0, 0.8),
      0 0 0 10px #0f172a,
      0 0 0 11px rgba(255, 255, 255, 0.08);
  }

  /* 내부 메인 콘텐츠 스크롤 분리 및 레이아웃 시프트 방지 */
  .app-container .main-content {
    flex: 1;
    overflow-y: auto;
    overflow-y: overlay;
    overflow-x: hidden;
    scrollbar-gutter: stable;
    overscroll-behavior: contain;
    padding-bottom: 96px;
    transition: padding-bottom 0.35s ease;
  }

  /* 뷰어 카드가 펼쳐져 있을 때는 하단 액션바 패딩이 불필요하므로 바닥 밀착 */
  .app-container .main-content:has(.page-viewer-card.is-expanded),
  body.viewer-scroll-locked .app-container .main-content {
    padding-bottom: 10px !important;
  }

  /* 부드러운 슬림 스크롤바 */
  .app-container .main-content::-webkit-scrollbar {
    width: 4px;
  }
  .app-container .main-content::-webkit-scrollbar-track {
    background: transparent;
  }
  .app-container .main-content::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.18);
    border-radius: 10px;
  }
  [data-theme="dark"] .app-container .main-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.22);
  }

  /* 하단 바를 스마트폰 화면 하단에 밀착 고정 */
  .bottom-action-bar {
    position: absolute !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 0 0 32px 32px;
    border-left: none !important;
    border-right: none !important;
  }

  /* 모달 및 오버레이들을 스마트폰 디바이스 화면 내부에 자연스럽게 배치 */
  .modal-overlay,
  .drawer-overlay,
  .loading-overlay {
    position: absolute !important;
    border-radius: 32px;
  }

  .side-drawer {
    position: absolute !important;
    left: 0 !important;
    width: 82% !important;
    border-radius: 0 28px 28px 0 !important;
  }
}

/* 실제 모바일 기기 접속 시 */
@media (max-width: 480px) {
  .app-container {
    min-height: 100vh;
    padding-bottom: calc(90px + env(safe-area-inset-bottom, 0px));
  }
}

/* ============================================================
   헤더
   ============================================================ */
.app-header {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  background-color: var(--bg-primary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 40;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-main);
}

.logo .dot {
  color: var(--accent);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-credit-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  height: 30px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
  user-select: none;
}

.header-credit-chip:hover, .header-credit-chip:active {
  border-color: rgba(245, 158, 11, 0.6);
  transform: translateY(-1px);
}

.header-credit-chip .coin-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(217, 119, 6, 0.25));
}

.chip-credit {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.header-credit-chip.master {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(217, 119, 6, 0.18));
  border-color: rgba(245, 158, 11, 0.45);
}

.header-credit-chip.master .chip-credit {
  color: #d97706;
  font-weight: 800;
}

[data-theme="dark"] .header-credit-chip.master .chip-credit {
  color: #fbbf24;
}

.header-auth-btn {
  height: 30px;
  padding: 0 12px;
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 1px solid transparent;
  background-color: var(--accent);
  color: #ffffff;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.header-auth-btn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.header-auth-btn.secondary {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-muted);
}

.header-auth-btn.secondary:hover {
  background-color: rgba(239, 68, 68, 0.08);
  border-color: #ef4444;
  color: #ef4444;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.icon-btn:hover {
  color: var(--text-main);
  background-color: var(--bg-subtle);
}

[data-theme="dark"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: none; }
:root:not([data-theme="dark"]) .sun-icon { display: none; }
:root:not([data-theme="dark"]) .moon-icon { display: block; }

/* ============================================================
   메인 콘텐츠 및 카드 레이아웃
   ============================================================ */
.main-content {
  padding: 12px 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.hidden {
  display: none !important;
}

/* ============================================================
   1. 업로드 영역
   ============================================================ */
.file-input-hidden {
  display: none;
}

.drop-zone {
  border: 1.5px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 26px 16px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-fast);
  background-color: var(--bg-card);
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--accent);
  background-color: var(--accent-light);
}

.upload-icon-wrap {
  width: 52px;
  height: 52px;
  background-color: var(--bg-subtle);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
  color: var(--accent);
}

.upload-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 2px;
}

.upload-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.upload-card.compact {
  padding: 6px 12px;
  margin-bottom: 0px;
  background-color: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

/* 파일 정보와 미리보기 카드 사이 여백 대폭 축소 */
.upload-card.compact + #pageSelectSection,
.upload-card.compact ~ #pageSelectSection {
  margin-top: -8px;
}

.file-info-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  background-color: transparent;
  width: 100%;
}

.file-details {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  color: var(--accent);
  min-width: 0;
  flex: 1;
}

.file-icon {
  flex-shrink: 0;
}

.file-name {
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
}

.file-meta-divider {
  font-size: 0.76rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.file-meta {
  font-size: 0.76rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

#reselectFileBtn {
  font-size: 0.76rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  cursor: pointer;
  flex-shrink: 0;
  margin-left: 8px;
  transition: var(--transition-fast);
}

#reselectFileBtn:hover {
  background-color: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

.text-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
}

.text-btn.sm {
  font-size: 0.78rem;
  padding: 2px 6px;
}

/* ============================================================
   업로드 전 간단 안내 카드 (첫 사용자 가이드)
   ============================================================ */
.upload-guide-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 22px 18px 20px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.upload-guide-card .guide-icon-badge {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background-color: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.upload-guide-card .guide-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin: 0 0 6px 0;
  line-height: 1.4;
}

.upload-guide-card .guide-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin: 0 0 14px 0;
  word-break: keep-all;
}

.upload-guide-card .guide-tags {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
}

.upload-guide-card .guide-tag {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 3px 10px;
  letter-spacing: -0.01em;
}

[data-theme="dark"] .upload-guide-card .guide-tag {
  background-color: rgba(255, 255, 255, 0.05);
}

/* ============================================================
   인라인 세로 확장/축소 미리보기 카드 (Zero-Discontinuity Fluid Accordion)
   - 패딩 일관성(12px 14px 14px): 상태 전환 시 가로/세로 덜컥거림 원천 방지
   - 단일 헤더 보존: DOM 행 스왑 없이 텍스트/아이콘만 매끄럽게 갱신
   - 캔버스 CSS 트랜지션: 비트맵 재생성(깜빡임) 없이 60fps 높이 리사이징
   - 도크/칩스 크로스페이드: max-height와 opacity로 부드러운 교차 모핑
   ============================================================ */
.page-viewer-card {
  position: relative;
  width: 100%;
  padding: 8px 12px 12px; /* 상단 패딩 축소로 파일명과의 간격 최소화 */
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 2px;
  transition: border-color 0.35s ease, box-shadow 0.35s ease;
}

.page-viewer-card.is-expanded {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

/* 상단 일체형 헤더 (스왑 없이 단일 행 유지) */
.viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  height: 24px;
}

.card-header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 1. 페이지 인디케이터: 알약 모양이 아닌 차분하고 세련된 텍스트 카운터 */
.viewer-page-indicator {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.2px;
  padding: 0;
  background: none;
  border: none;
}

.viewer-page-indicator .cur-page {
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.86rem;
}

.viewer-page-indicator .page-sep {
  opacity: 0.4;
  margin: 0 1px;
}

.ios-badge-pill {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background-color: var(--accent-light);
  color: var(--accent);
  transition: background-color 0.25s ease, color 0.25s ease;
}

.ios-badge-pill.accent {
  background-color: var(--accent);
  color: #ffffff;
}

/* 2. 상단 헤더 알약 칩 목록 (미리보기 확대 시에만 페이지 인디케이터 우측에 노출) */
.header-chips-list {
  display: none;
}

.page-viewer-card.is-expanded .header-chips-list {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  max-width: calc(100vw - 190px);
  scrollbar-width: none;
  padding: 1px 0;
}

.header-chips-list::-webkit-scrollbar {
  display: none;
}

.header-empty-hint {
  font-size: 0.76rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: -0.2px;
  white-space: nowrap;
  opacity: 0.85;
}

/* 알약 형태의 범위 칩 (알약집) */
.page-chip.range-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.14);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: -0.2px;
  white-space: nowrap;
  flex-shrink: 0;
  cursor: pointer;
  transition: all 0.18s ease;
}

.page-chip.range-chip:hover {
  background: rgba(59, 130, 246, 0.22);
  border-color: rgba(59, 130, 246, 0.45);
}

.page-chip.range-chip .chip-remove-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border: none;
  background: none;
  color: inherit;
  opacity: 0.6;
  cursor: pointer;
  padding: 0;
  font-size: 13px;
  line-height: 1;
  border-radius: 50%;
  transition: opacity 0.15s, color 0.15s;
}

.page-chip.range-chip .chip-remove-btn:hover {
  opacity: 1;
  color: #f87171;
}

.ios-expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 4px 10px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
}

.ios-expand-btn:hover {
  background-color: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

.ios-expand-btn svg {
  transition: transform 0.25s cubic-bezier(0.2, 0.9, 0.25, 1.02);
}

/* 중앙 단일 캔버스 뷰포트 (높이 연속 트랜지션 및 80vh 폰 문서 뷰어) */
.viewer-canvas-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 155px; /* 기본 (컴팩트 상태: 세로 공간 최소화) */
  background-color: var(--bg-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-color);
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  transition: height 0.44s cubic-bezier(0.16, 1, 0.3, 1);
}

.page-viewer-card.is-expanded .viewer-canvas-wrap {
  height: clamp(340px, calc(100vh - 420px), 440px);
  cursor: default;
  touch-action: none !important;
  overscroll-behavior: none !important;
}

@media (max-width: 480px) {
  .page-viewer-card.is-expanded .viewer-canvas-wrap {
    height: calc(100dvh - 290px);
  }
}

.page-viewer-card.is-collapsing .viewer-canvas-wrap {
  height: 155px !important;
}

/* PDF 캔버스 엘리먼트 (비트맵 재생성/깜빡임 없는 매끄러운 CSS 스케일링) */
.viewer-canvas-wrap #pdfCanvas {
  display: block;
  width: auto;
  height: auto;
  max-width: calc(100% - 12px);
  max-height: 145px; /* 기본 (컴팩트 상태) */
  object-fit: contain;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  background-color: #ffffff;
  transform-origin: center center;
  will-change: max-height, transform;
  transition: max-height 0.44s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.44s ease;
}

.page-viewer-card.is-expanded .viewer-canvas-wrap #pdfCanvas {
  max-height: clamp(320px, calc(100vh - 440px), 420px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.16);
}

@media (max-width: 480px) {
  .page-viewer-card.is-expanded .viewer-canvas-wrap #pdfCanvas {
    max-height: calc(100dvh - 310px);
  }
}

.page-viewer-card.is-collapsing .viewer-canvas-wrap #pdfCanvas {
  max-height: 145px !important;
  box-shadow: var(--shadow-sm);
}

/* 안드로이드 대형 문서 뷰어용 플로팅 줌 뱃지 */
.viewer-zoom-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #ffffff;
  padding: 5px 11px;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  z-index: 20;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.viewer-zoom-badge:active {
  transform: scale(0.93);
}

.viewer-zoom-badge.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
}

.zoom-reset-hint {
  font-size: 0.68rem;
  opacity: 0.85;
  font-weight: 500;
}

/* 컴팩트 모드 힌트 오버레이 (상시 노출 글래스모피즘 정중앙 배지 - 65% 불투명도) */
.compact-overlay-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(15, 23, 42, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  opacity: 0.65; /* 사용자 요청: 65% 불투명도 적용 */
  transition: opacity 0.22s ease, transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  pointer-events: none;
  z-index: 10;
}

.page-viewer-card:not(.is-expanded):not(.is-collapsing) .viewer-canvas-wrap:hover .compact-overlay-hint {
  opacity: 0.85;
  transform: translate(-50%, -50%) scale(1.04);
}

.page-viewer-card.is-expanded .compact-overlay-hint,
.page-viewer-card.is-collapsing .compact-overlay-hint {
  opacity: 0 !important;
  visibility: hidden !important;
  pointer-events: none;
}

/* 좌우 플로팅 네비게이션 버튼 (불연속 팝 대신 페이드 전환) */
.ios-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%) scale(0.88);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.92);
  color: #1e293b;
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 15;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.26s ease 0.12s, transform 0.26s cubic-bezier(0.16, 1, 0.3, 1) 0.12s, background-color 0.15s ease;
}

.page-viewer-card.is-expanded:not(.is-collapsing) .ios-nav-btn {
  opacity: 1;
  transform: translateY(-50%) scale(1);
  pointer-events: auto;
}

.page-viewer-card.is-collapsing .ios-nav-btn {
  opacity: 0 !important;
  transform: translateY(-50%) scale(0.85) !important;
  transition: opacity 0.16s ease, transform 0.16s ease !important;
  pointer-events: none;
}

.ios-nav-btn.prev {
  left: 8px;
}

.ios-nav-btn.next {
  right: 8px;
}

.ios-nav-btn:active {
  transform: translateY(-50%) scale(0.92);
}

[data-theme="dark"] .ios-nav-btn {
  background-color: rgba(30, 41, 59, 0.92);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.15);
}

/* 플로팅 체크 버튼 */
.floating-check-circle {
  position: absolute;
  bottom: 14px;
  right: 14px;
  top: auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 15;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.85);
  transition: opacity 0.26s ease 0.14s, transform 0.26s cubic-bezier(0.16, 1, 0.3, 1) 0.14s, background-color 0.15s ease;
}

.page-viewer-card.is-expanded:not(.is-collapsing) .floating-check-circle {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.page-viewer-card.is-collapsing .floating-check-circle {
  opacity: 0 !important;
  transform: scale(0.8) !important;
  transition: opacity 0.16s ease, transform 0.16s ease !important;
  pointer-events: none;
}

.floating-check-circle.checked {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.floating-check-circle:not(.checked) {
  color: var(--text-muted);
}

.floating-check-circle:active {
  transform: scale(0.92);
}

/* 컴팩트 칩스 바 (부드러운 max-height 모핑 및 우측하단 범위 수정 버튼) */
.compact-chips-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  max-height: 60px;
  opacity: 1;
  margin-top: 7px;
  overflow: visible;
  transition: max-height 0.38s cubic-bezier(0.2, 0.9, 0.25, 1.02),
              opacity 0.25s ease,
              margin 0.38s ease;
}

.compact-chips-wrap .chips-scroll {
  flex: 1;
  min-width: 0;
}

.compact-edit-range-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.compact-edit-range-btn:hover {
  background-color: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

.compact-edit-range-btn:active {
  transform: scale(0.95);
}

/* 축소 상태에서는 상단 헤더 우측의 접기/펼치기 버튼을 숨기고 우측하단 범위수정 버튼으로 일원화 */
.page-viewer-card:not(.is-expanded) .ios-expand-btn {
  display: none !important;
}

.page-viewer-card.is-expanded:not(.is-collapsing) .compact-chips-wrap {
  max-height: 0;
  opacity: 0;
  margin-top: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-viewer-card.is-collapsing .compact-chips-wrap {
  max-height: 60px;
  opacity: 1;
  margin-top: 7px;
}

/* 확장 독 바 (부드러운 max-height 모핑) */
.viewer-expanded-dock {
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 0;
  max-height: 0;
  opacity: 0;
  margin-top: 0;
  overflow: hidden;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: max-height 0.44s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.28s ease 0.1s,
              padding 0.44s ease,
              margin 0.44s ease;
}

.page-viewer-card.is-expanded:not(.is-collapsing) .viewer-expanded-dock {
  max-height: 180px;
  opacity: 1;
  padding: 8px 0 2px;
  margin-top: 8px;
  pointer-events: auto;
}

.page-viewer-card.is-collapsing .viewer-expanded-dock {
  max-height: 0 !important;
  opacity: 0 !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  margin-top: 0 !important;
  pointer-events: none;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.18s ease !important;
}

.ios-dock-range-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.ios-pill-action {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
}

.ios-pill-action:hover {
  background-color: var(--accent-light);
  color: var(--accent);
}

.ios-dock-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.fs-selection-summary {
  display: flex;
  flex-direction: column;
}

.fs-badge {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-main);
}

.fs-credit-sub {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--accent);
}

.ios-complete-btn {
  flex: 0 1 auto;
  min-width: 110px;
  max-width: 160px;
  height: 35px;
  padding: 0 12px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent) 0%, #1d4ed8 100%);
  color: #ffffff;
  border: none;
  font-size: 0.82rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  box-shadow: 0 3px 12px var(--accent-glow);
  transition: transform 0.15s ease, opacity 0.2s ease;
}

.ios-complete-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.ios-complete-btn:not(:disabled):active {
  transform: scale(0.96);
}

/* ============================================================
   출제 옵션 영역이 아래에서 위로 치고 올라오는 서지(Surge) 모션
   ============================================================ */
#optionsSection.surge-up {
  animation: optionsSurgeUp 0.42s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes optionsSurgeUp {
  0% {
    opacity: 0.15;
    transform: translateY(50px) scale(0.98);
  }
  65% {
    opacity: 0.95;
    transform: translateY(-5px) scale(1.006);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

#optionsSection.slide-down {
  animation: optionsSlideDown 0.28s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes optionsSlideDown {
  0% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(24px);
  }
}

/* 하단 액션바도 화면 아래에서 탄력 있게 슬라이드 업 */
#bottomBar.surge-up {
  animation: bottomBarSurgeUp 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes bottomBarSurgeUp {
  0% {
    transform: translateY(100%);
    opacity: 0;
  }
  70% {
    transform: translateY(-3px);
    opacity: 1;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}

/* 기본 페이드업 (호환용) */
.fade-in-up {
  animation: iosFadeInUp 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes iosFadeInUp {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 미리보기 집중 캔버스 뷰어 */
.page-viewer-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 10px 8px 12px;
  position: relative;
  margin-bottom: 14px;
  border: 1px solid var(--border-color);
}

.canvas-wrap {
  position: relative;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  max-width: 100%;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  background-color: #ffffff;
}

#pdfCanvas {
  display: block;
  max-width: 100%;
  max-height: 56vh; /* 화면에 큼직하고 시원하게 차오르도록 높이 확대 */
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-sm);
}


/* ============================================================
   스마트폰 사진첩 스타일 반투명 원형 체크 버튼 (우측 하단: 크기 확대)
   ============================================================ */
.floating-check-circle {
  position: absolute;
  right: 14px;
  bottom: 14px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.floating-check-circle:active {
  transform: scale(0.92);
}

.check-circle-inner {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  /* 미선택: 스마트폰 갤러리 스타일 반투명 다크 글래스 + 화이트 보더 */
  background: rgba(15, 23, 42, 0.48);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 2.2px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.floating-check-circle .check-svg {
  color: #ffffff;
  opacity: 0;
  transform: scale(0.4);
  transition: all 0.22s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* 호버 시 */
.floating-check-circle:hover .check-circle-inner {
  border-color: #ffffff;
  background: rgba(15, 23, 42, 0.65);
  transform: scale(1.05);
}

/* 선택(담김) 활성 상태: 사진첩의 파란 원 체크 (팝 애니메이션) */
.floating-check-circle.checked .check-circle-inner {
  background: var(--accent);
  border-color: #ffffff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.6), inset 0 1px 2px rgba(255, 255, 255, 0.35);
  animation: checkPop 0.28s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.floating-check-circle.checked .check-svg {
  opacity: 1;
  transform: scale(1);
}

@keyframes checkPop {
  0% { transform: scale(0.8); }
  60% { transform: scale(1.18); }
  100% { transform: scale(1); }
}

/* 쪽 넘기기 네비게이션 바 (캔버스 하단) */
.viewer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 8px;
  padding: 4px 0 2px;
  width: 100%;
}

.nav-arrow-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.nav-arrow-btn:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.nav-arrow-btn:active {
  transform: scale(0.92);
}

.page-indicator {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  min-width: 60px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* 미리보기 하단 컨트롤 영역 */
.page-select-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.quick-range-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  background-color: var(--bg-subtle);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
}

.range-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
}

.quick-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

.range-inputs {
  display: flex;
  align-items: center;
  gap: 4px;
}

.num-input {
  width: 44px;
  height: 28px;
  text-align: center;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
}

.num-input:focus {
  outline: none;
  border-color: var(--accent);
}

.tilde, .unit {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.pill-btn {
  background-color: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-full);
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
}

.pill-btn:active {
  transform: scale(0.96);
}

/* 선택 확인 박스 */
.selection-status-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.status-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.status-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
}

.viewer-nav {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  margin-bottom: 2px;
}

.nav-arrow-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.nav-arrow-btn:active {
  transform: scale(0.94);
}

.page-indicator {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.canvas-wrap {
  width: 100%;
  min-height: 280px;
  max-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: #ffffff;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: relative;
}

#pdfCanvas {
  max-width: 100%;
  max-height: 360px;
  display: block;
}

.canvas-loader {
  position: absolute;
  inset: 0;
  background-color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.page-toggle-btn {
  margin-top: 10px;
  width: 100%;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  font-size: 0.92rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.page-toggle-btn.selected {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.page-toggle-btn.selected .check-icon {
  stroke: #ffffff;
}

.chips-scroll {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 8px 0 2px;
  scrollbar-width: none;
}

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

.page-chip {
  flex-shrink: 0;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-main);
}

.range-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: var(--transition-fast);
}

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

.chip-remove-btn {
  background: rgba(0, 0, 0, 0.08);
  border: none;
  border-radius: 50%;
  width: 16px;
  height: 16px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 0;
}

[data-theme="dark"] .chip-remove-btn {
  background: rgba(255, 255, 255, 0.16);
  color: var(--text-main);
}

.chip-remove-btn:hover {
  background-color: #ff3b30;
  color: #ffffff;
}

.empty-chip-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 4px;
}

/* ============================================================
   3. 출제 옵션 (Zero-Discontinuity 물리적 푸시다운/풀업 아코디언)
   ============================================================ */
#optionsSection {
  padding: 13px 16px 16px 16px;
  scroll-margin-top: 68px;
  transition: transform 0.44s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.36s cubic-bezier(0.16, 1, 0.3, 1),
              max-height 0.44s cubic-bezier(0.16, 1, 0.3, 1),
              margin 0.44s cubic-bezier(0.16, 1, 0.3, 1),
              padding 0.44s cubic-bezier(0.16, 1, 0.3, 1);
  transform: translateY(0);
  opacity: 1;
  max-height: 1600px;
  will-change: transform, opacity, max-height;
}

/* 뷰어 카드가 펼쳐질 때: 커스텀 템플릿~추가지시사항이 스르륵 아래로 밀려나며 화면 밖으로 퇴장 */
.page-viewer-card.is-expanded ~ #optionsSection {
  transform: translateY(140px);
  opacity: 0;
  pointer-events: none;
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  margin-top: 0;
  margin-bottom: 0;
  border-color: transparent;
  overflow: hidden;
}

/* 뷰어 카드가 축소되는 동안: 아래로 밀려나 있던 옵션 영역이 제자리로 자연스럽게 복귀 */
.page-viewer-card.is-collapsing ~ #optionsSection {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  max-height: 1600px;
}

#templateOptionGroup {
  scroll-margin-top: 68px;
}

.option-group {
  margin-bottom: 14px;
}

.option-group:last-child {
  margin-bottom: 0;
}

/* 커스텀 템플릿 바 및 칩 */
.template-header-actions {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.template-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--accent);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.template-add-btn:hover {
  color: var(--accent-hover, #2563eb);
  background-color: var(--bg-subtle);
}

.template-edit-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.template-edit-toggle-btn:hover {
  color: var(--text-main);
  background-color: var(--bg-subtle);
}

.template-edit-toggle-btn.active {
  color: var(--accent);
  background-color: rgba(59, 130, 246, 0.12);
  font-weight: 700;
}

.template-save-form {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  padding: 8px 10px;
  background: var(--bg-subtle);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  animation: fadeIn 0.15s ease-out;
}

.template-save-form.hidden {
  display: none !important;
}

.template-name-input {
  flex: 1;
  font-size: 0.78rem !important;
  padding: 6px 10px !important;
  height: 32px !important;
}

.template-form-actions {
  display: flex;
  gap: 4px;
}

.primary-accent-btn {
  background: var(--accent) !important;
  color: #ffffff !important;
  border: none !important;
  padding: 4px 10px !important;
  font-size: 0.74rem !important;
  font-weight: 700 !important;
  border-radius: var(--radius-full) !important;
  cursor: pointer;
  transition: var(--transition-fast);
}

.primary-accent-btn:hover {
  filter: brightness(1.1);
}

.template-chips-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 2px 0 4px 0;
  -webkit-overflow-scrolling: touch;
}

.template-chips-wrap::-webkit-scrollbar {
  display: none;
}

.template-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  user-select: none;
}

.template-chip:hover {
  border-color: var(--accent);
  color: var(--text-main);
  background: var(--bg-subtle);
}

.template-chip.active {
  background: rgba(59, 130, 246, 0.12);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
}

.template-chip-action-group {
  display: none;
  align-items: center;
  gap: 3px;
  margin-left: 2px;
}

/* 편집 모드일 때만 액션 버튼 노출 */
.template-chips-wrap.is-editing .template-chip-action-group {
  display: inline-flex;
}

.template-chips-wrap.is-editing .template-chip:not(.template-chip-default) {
  border-style: dashed;
  border-color: rgba(59, 130, 246, 0.45);
  background-color: rgba(59, 130, 246, 0.04);
}

.template-chip-rename,
.template-chip-del {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: none;
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 10px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  transition: var(--transition-fast);
}

.template-chip-rename:hover {
  background: var(--accent);
  color: #ffffff;
}

.template-chip-del:hover {
  background: #ff3b30;
  color: #ffffff;
}

.template-empty-hint {
  font-size: 0.74rem;
  color: var(--text-muted);
  opacity: 0.85;
}

.option-label {
  display: block;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.opt-desc {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.segmented-control {
  display: flex;
  background-color: var(--bg-subtle);
  padding: 3px;
  border-radius: 10px;
  gap: 2px;
}

.seg-btn {
  flex: 1;
  background: none;
  border: none;
  height: 34px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.seg-btn.active {
  background-color: var(--bg-card);
  color: var(--text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.text-input {
  width: 100%;
  height: 40px;
  background-color: var(--bg-subtle);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 12px;
  font-size: 0.88rem;
  color: var(--text-main);
  font-family: inherit;
}

.text-input:focus {
  outline: none;
  background-color: var(--bg-card);
  border-color: var(--accent);
}

.textarea-input {
  height: auto;
  min-height: 60px;
  padding: 10px 12px;
  line-height: 1.45;
  resize: vertical;
}

/* ============================================================
   4. 결과 및 다운로드 영역
   ============================================================ */
.result-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.check-circle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--success-bg);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.result-title {
  font-size: 1.1rem;
  font-weight: 800;
}

.result-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.download-action-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 20px;
}

.btn {
  height: 44px;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.btn-primary {
  background-color: var(--accent);
  color: #ffffff;
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-secondary {
  background-color: var(--bg-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:active {
  transform: scale(0.97);
}

/* 터치 암기표 그리드 */
.answers-viewer-wrap {
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
}

.answers-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 0.9rem;
  font-weight: 700;
}

.sub-hint {
  font-size: 0.74rem;
  font-weight: 400;
  color: var(--text-muted);
}

.answers-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 320px;
  overflow-y: auto;
  padding-right: 4px;
}

.answer-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 12px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.answer-card:active {
  transform: scale(0.99);
}

.answer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.answer-num {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--accent);
}

.answer-hidden-box {
  background-color: var(--bg-card);
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--text-muted);
  filter: blur(4px);
  user-select: none;
  transition: filter 0.2s ease;
}

.answer-card.revealed .answer-hidden-box {
  filter: blur(0);
  color: var(--text-main);
  background-color: var(--accent-light);
}

.answer-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* ============================================================
   하단 고정 액션 바
   ============================================================ */
.bottom-action-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: var(--phone-width);
  margin: 0 auto;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-color);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
  z-index: 50;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.38s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.bottom-action-bar.is-hidden {
  transform: translateY(115%);
  opacity: 0;
  pointer-events: none;
}

.bar-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.bar-back-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.bar-back-btn:hover {
  background-color: var(--accent-light);
  color: var(--accent);
  border-color: var(--accent);
}

.bar-back-btn:active {
  transform: scale(0.92);
}

.bar-text-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bar-bold-text {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-main);
}

.bar-sub-hint {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
}

.bar-dot {
  color: var(--text-sub);
}

.bar-action-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar-credit-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 0 12px;
  height: 40px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  transition: var(--transition-fast);
  user-select: none;
}

.bar-credit-pill.highlight {
  background-color: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.25);
}

[data-theme="dark"] .bar-credit-pill.highlight {
  background-color: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.4);
}

.credit-pill-prefix {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
}

.credit-pill-num {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.3px;
}

.btn-create {
  background-color: var(--accent);
  color: #ffffff;
  border: none;
  height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 14px var(--accent-glow);
  transition: var(--transition-fast);
}

.btn-create:active {
  transform: scale(0.96);
}

.btn-create:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-create.btn-download-mode {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
  animation: btnDownloadAmbientPulse 2.5s infinite ease-in-out;
  position: relative;
}

@keyframes btnDownloadAmbientPulse {
  0%, 100% {
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
    transform: scale(1);
  }
  50% {
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.65), 0 0 0 3px rgba(16, 185, 129, 0.2);
    transform: scale(1.02);
  }
}

.btn-create.btn-download-mode:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  box-shadow: 0 6px 18px rgba(16, 185, 129, 0.5);
}

.btn-create.btn-download-mode:active {
  transform: scale(0.96);
}

.btn-home {
  height: 44px;
  padding: 0 16px;
  border-radius: var(--radius-full);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
  flex-shrink: 0;
  user-select: none;
}

.btn-home:hover {
  background-color: var(--border-color);
  color: var(--text-main);
}

.btn-home:active {
  transform: scale(0.96);
}

.btn-home.hidden {
  display: none !important;
}

/* ============================================================
   로딩 오버레이
   ============================================================ */
.loading-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.loading-box {
  background-color: var(--bg-card);
  padding: 28px 22px;
  border-radius: var(--radius-xl);
  text-align: center;
  max-width: 330px;
  width: 88%;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--border-color);
  animation: modalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.pulse-ring {
  width: 46px;
  height: 46px;
  border: 3.5px solid var(--accent-light);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: 14px;
}

.loading-text {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 5px;
  line-height: 1.35;
}

.loading-sub {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.4;
  min-height: 20px;
}

.loading-progress-wrap {
  width: 100%;
  height: 6px;
  background-color: var(--bg-hover);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 18px;
  margin-bottom: 14px;
  position: relative;
}

.loading-progress-bar {
  height: 100%;
  width: 5%;
  background: linear-gradient(90deg, var(--accent) 0%, #38bdf8 100%);
  border-radius: 999px;
  transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.loading-timer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-muted);
  background-color: var(--bg-sub);
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
}

.timer-dot {
  opacity: 0.4;
}

/* ============================================================
   사이드 메뉴 서랍 (Drawer)
   ============================================================ */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.42);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.34s cubic-bezier(0.16, 1, 0.3, 1), 
              visibility 0.34s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, visibility;
}

.drawer-overlay.active {
  opacity: 1;
  visibility: visible;
}

.side-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  max-width: 82%;
  background-color: var(--bg-card);
  box-shadow: 4px 0 28px rgba(0, 0, 0, 0.18);
  border-radius: 0 20px 20px 0;
  z-index: 95;
  transform: translateX(-100%);
  transition: transform 0.34s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
  display: flex;
  flex-direction: column;
  padding: 16px;
}

.drawer-overlay.active .side-drawer {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.drawer-logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-main);
}

.drawer-logo .dot {
  color: var(--accent);
}

.drawer-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
}

.drawer-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.drawer-section-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0 8px 4px;
}

.drawer-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: left;
  width: 100%;
}

.drawer-item:hover, .drawer-item:active {
  background-color: var(--bg-subtle);
  color: var(--accent);
}

.drawer-item svg {
  color: var(--text-muted);
  flex-shrink: 0;
}

.drawer-item:hover svg, .drawer-item:active svg {
  color: var(--accent);
}

.drawer-item-sub {
  margin-left: auto;
  font-size: 0.76rem;
  color: var(--text-muted);
  font-weight: 500;
}

.drawer-footer {
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-version {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-main);
}

.drawer-footer-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.25s ease, background-color 0.15s ease, color 0.15s ease;
}

.drawer-footer-btn:hover {
  background-color: var(--bg-subtle);
  color: var(--text-main);
  transform: rotate(45deg);
}

.drawer-footer-btn:active {
  transform: scale(0.92) rotate(60deg);
}

/* ============================================================
   모달 팝업
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 105;
  padding: 20px;
}

.modal-card {
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  max-width: 420px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--text-main);
}

.modal-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
}

/* ============================================================
   시험지 완성 축하 모달 (중앙 완성 카드)
   ============================================================ */
.exam-complete-modal-card {
  position: relative;
  max-width: 350px;
  width: 90%;
  padding: 30px 22px 24px 22px;
  text-align: center;
  border-radius: 24px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(16, 185, 129, 0.25);
  animation: completeModalPop 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  overflow: visible;
}

.complete-modal-close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.complete-modal-close-btn:hover {
  background-color: var(--bg-hover);
  color: var(--text-main);
}

.complete-modal-body {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.complete-icon-wrapper {
  position: relative;
  width: 74px;
  height: 74px;
  margin: 0 auto 16px auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.complete-pulse-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.22);
  animation: completeRingPulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.complete-icon-circle {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.45);
  position: relative;
  z-index: 1;
}

.complete-check-svg {
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  animation: completeCheckDraw 0.55s 0.15s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.complete-modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.complete-modal-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 12px;
  word-break: keep-all;
}

.complete-modal-meta strong {
  color: #10b981;
  font-weight: 800;
  font-size: 1.02rem;
}

.complete-archive-tip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 20px;
  font-size: 0.78rem;
  color: #059669;
  font-weight: 600;
  margin-bottom: 18px;
}

.complete-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.btn-complete-download {
  height: 52px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 14px;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  font-size: 1.02rem;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(16, 185, 129, 0.42);
  position: relative;
  overflow: hidden;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  user-select: none;
}

.btn-complete-download::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    60deg,
    transparent 35%,
    rgba(255, 255, 255, 0.3) 50%,
    transparent 65%
  );
  transform: translateX(-100%);
  animation: completeShimmerSweep 3s infinite ease-in-out;
}

.btn-complete-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.55);
}

.btn-complete-download:active {
  transform: scale(0.97);
}

.btn-complete-review {
  height: 42px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 12px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease;
}

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

@keyframes completeModalPop {
  0% {
    opacity: 0;
    transform: scale(0.85) translateY(14px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes completeRingPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.26);
    opacity: 0;
  }
}

@keyframes completeCheckDraw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes completeShimmerSweep {
  0% {
    transform: translateX(-100%) rotate(25deg);
  }
  30%, 100% {
    transform: translateX(120%) rotate(25deg);
  }
}

/* ============================================================
   프로필 & 크레딧 카드 (사이드바)
   ============================================================ */
.drawer-profile-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background-color: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.profile-card-top {
  display: flex;
  align-items: center;
  gap: 12px;
}

.profile-avatar {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-full);
  background-color: var(--bg-card);
  border: 1.5px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  flex-shrink: 0;
  font-weight: 800;
  font-size: 1.05rem;
}

.profile-avatar svg {
  display: block;
}

.profile-avatar.master {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(217, 119, 6, 0.25));
  border-color: rgba(245, 158, 11, 0.5);
  color: #d97706;
}

[data-theme="dark"] .profile-avatar.master {
  color: #fbbf24;
}

.profile-meta {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  min-width: 0;
}

.profile-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.profile-name {
  font-size: 0.94rem;
  font-weight: 800;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-role-badge {
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: var(--radius-full);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.badge-guest {
  background-color: var(--border-color);
  color: var(--text-muted);
}

.badge-member {
  background-color: rgba(59, 130, 246, 0.12);
  color: var(--accent);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.badge-master {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #ffffff;
  box-shadow: 0 1px 3px rgba(217, 119, 6, 0.3);
}

.profile-subtext {
  font-size: 0.72rem;
  color: var(--text-muted);
}

/* 크레딧 박스 */
.profile-credit-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
}

.credit-box-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.credit-box-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
}

.credit-box-val {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.3px;
}

.btn-credit-history {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.74rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-credit-history:hover {
  background-color: var(--border-color);
}

/* 비회원 배너 */
.guest-prompt-banner {
  background: rgba(59, 130, 246, 0.06);
  border: 1px dashed rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  text-align: center;
  font-size: 0.74rem;
  color: var(--text-main);
}

.guest-prompt-banner strong {
  color: var(--accent);
}

/* 프로필 버튼 행 */
.profile-action-row {
  display: flex;
  gap: 6px;
}

.profile-action-row .pill-btn {
  flex: 1;
  text-align: center;
  justify-content: center;
  height: 34px;
  font-size: 0.8rem;
  font-weight: 700;
}

.pill-btn.primary {
  background-color: var(--accent);
  color: #ffffff;
  border: none;
}

.pill-btn.primary:hover {
  background-color: var(--accent-hover);
}

.pill-btn.ghost {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.pill-btn.ghost:hover {
  background-color: var(--bg-card);
}

/* 크레딧 이용 내역 모달 */
.credit-history-card {
  max-width: 440px;
}

.credit-summary-card {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(59, 130, 246, 0.02));
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.summary-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.summary-val {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent);
}

.credit-history-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.credit-history-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
}

.credit-history-list {
  max-height: 260px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-right: 2px;
}

.credit-tx-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
}

.credit-tx-left {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.credit-tx-reason {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
}

.credit-tx-date {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.credit-tx-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.credit-tx-delta {
  font-size: 0.86rem;
  font-weight: 800;
}

.credit-tx-delta.plus {
  color: #10b981;
}

.credit-tx-delta.minus {
  color: #ef4444;
}

.credit-tx-balance {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.credit-history-empty {
  text-align: center;
  padding: 24px 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}


.btn-primary-block {
  width: 100%;
  height: 42px;
  background-color: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 10px;
  transition: var(--transition-fast);
}

.btn-primary-block:active {
  transform: scale(0.98);
}

/* ============================================================
   소셜 로그인 모달 (카카오 / 구글 / 게스트)
   ============================================================ */
.auth-modal-header {
  justify-content: center;
  text-align: center;
  padding: 18px 20px 14px;
}

.auth-modal-header .modal-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.auth-modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.auth-benefit-card {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(59, 130, 246, 0.03));
  border: 1px solid rgba(59, 130, 246, 0.22);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  text-align: left;
}

.benefit-badge {
  display: inline-block;
  background-color: var(--accent);
  color: #ffffff;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  margin-bottom: 6px;
  letter-spacing: 0.2px;
}

.benefit-title {
  font-size: 0.94rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 3px;
}

.benefit-sub {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.social-login-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-social {
  width: 100%;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.94rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
  user-select: none;
}

.btn-social:active {
  transform: scale(0.985);
}

.btn-kakao {
  background-color: #FEE500;
  color: #191919;
  border: 1px solid #E6CF00;
}

.btn-kakao:hover {
  background-color: #FDD835;
}

.btn-google {
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-google:hover {
  background-color: var(--bg-subtle);
  border-color: var(--text-muted);
}

.auth-divider {
  display: flex;
  align-items: center;
  text-align: center;
  color: var(--text-sub);
  font-size: 0.74rem;
  font-weight: 500;
  margin: 4px 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  border-bottom: 1px solid var(--border-color);
}

.auth-divider span {
  padding: 0 10px;
}

.btn-guest {
  background-color: var(--bg-sub);
  color: var(--text-main);
  border: 1.5px solid var(--border-color);
  font-size: 0.94rem;
  font-weight: 700;
  height: 48px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.btn-guest:hover {
  background-color: var(--bg-card);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.12);
  transform: translateY(-1px);
}

.btn-guest svg {
  color: #f59e0b;
  flex-shrink: 0;
}

.guest-btn-title {
  font-weight: 700;
  letter-spacing: -0.2px;
}

.guest-btn-badge {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  background-color: rgba(37, 99, 235, 0.12);
  color: var(--accent);
  letter-spacing: -0.2px;
  transition: all 0.2s ease;
}

.guest-btn-badge.exhausted {
  background-color: rgba(239, 68, 68, 0.12);
  color: #ef4444;
}

.auth-terms-note {
  font-size: 0.7rem;
  color: var(--text-sub);
  text-align: center;
  line-height: 1.35;
  margin-top: 4px;
}

.auth-error-msg {
  color: #ff3b30;
  font-size: 0.78rem;
  font-weight: 600;
  margin-top: 6px;
}

/* ============================================================
   Pro 요금제 전용 지시사항 잠금 및 안내 모달 스타일
   ============================================================ */
.option-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.option-label-row .option-label {
  margin-bottom: 0;
}

/* 정답표 포함 미니 토글 (힌트 방식 우측 배치) */
.answer-include-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.answer-include-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  user-select: none;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.answer-include-toggle:hover {
  color: var(--text-main);
  background-color: var(--bg-subtle);
}

.answer-include-toggle input[type="checkbox"] {
  accent-color: var(--accent);
  width: 14px;
  height: 14px;
  cursor: pointer;
  margin: 0;
}

.answer-include-toggle input[type="checkbox"]:checked + .toggle-text {
  color: var(--accent);
  font-weight: 700;
}

/* 정답표 안내 i 버튼 및 팝오버 */
.info-help-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 3px;
  color: var(--text-muted);
  border-radius: var(--radius-full, 9999px);
  cursor: pointer;
  line-height: 1;
  transition: color 0.15s ease, background-color 0.15s ease, transform 0.15s ease;
}

.info-help-btn:hover,
.info-help-btn:focus-visible {
  color: var(--accent);
  background-color: var(--bg-subtle);
  outline: none;
}

.info-help-btn:active {
  transform: scale(0.92);
}

.answer-info-popover {
  position: absolute;
  top: calc(100% + 7px);
  right: 0;
  z-index: 120;
  min-width: 220px;
  max-width: 260px;
  background: var(--bg-card, #ffffff);
  border: 1px solid var(--border-color, #e2e8f0);
  border-radius: 10px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
  padding: 10px 12px;
  text-align: left;
  transform-origin: top right;
  animation: popoverFadeIn 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.answer-info-popover.hidden {
  display: none !important;
}

@keyframes popoverFadeIn {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.answer-info-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--border-subtle, #f1f5f9);
}

.answer-info-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.answer-info-close {
  background: none;
  border: none;
  padding: 2px;
  cursor: pointer;
  color: var(--text-muted);
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.answer-info-close:hover {
  color: var(--text-main);
  background-color: var(--bg-subtle);
}

.answer-info-desc {
  margin: 0;
  font-size: 0.73rem;
  line-height: 1.45;
  color: var(--text-muted);
  word-break: keep-all;
}

.answer-info-desc strong {
  color: var(--accent);
  font-weight: 700;
}

.pro-tag {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
  color: #ffffff;
  font-size: 0.66rem;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.28);
  user-select: none;
  transition: var(--transition-fast);
}

.pro-tag.lg {
  font-size: 0.74rem;
  padding: 3px 9px;
}

.pro-tag.inactive {
  background: var(--bg-subtle);
  color: var(--text-muted);
  box-shadow: none;
  border: 1px solid var(--border-color);
}

.pro-locked-wrap {
  position: relative;
  width: 100%;
}

.pro-locked-wrap.locked {
  cursor: pointer;
}

.pro-locked-wrap.locked #customInstructionsInput {
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  cursor: pointer;
  border-color: rgba(99, 102, 241, 0.2);
  user-select: none;
}

.pro-locked-wrap.locked:hover #customInstructionsInput {
  border-color: rgba(99, 102, 241, 0.5);
  background-color: rgba(99, 102, 241, 0.04);
}

.pro-locked-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 12px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  background: transparent;
  z-index: 2;
}

.pro-lock-text {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.76rem;
  font-weight: 700;
  color: #7c3aed;
  background: rgba(124, 58, 237, 0.08);
  border: 1px solid rgba(124, 58, 237, 0.22);
  padding: 4px 9px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

[data-theme="dark"] .pro-lock-text {
  color: #c084fc;
  background: rgba(192, 132, 252, 0.12);
  border-color: rgba(192, 132, 252, 0.3);
}

/* Pro 모달 */
.pro-modal-card {
  max-width: 440px;
  width: 90%;
  border-radius: var(--radius-md);
  padding: 24px;
}

.pro-modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pro-modal-lead {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 16px;
}

.pro-benefit-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}

.pro-benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 13px;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.benefit-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(59, 130, 246, 0.12);
  color: var(--primary);
  flex-shrink: 0;
  margin-top: 1px;
}

.benefit-texts {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.benefit-texts strong {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-main);
}

.benefit-texts span {
  font-size: 0.76rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.pro-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.text-muted-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  width: 100%;
  height: 40px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.text-muted-btn:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
}

/* ============================================================
   로그인 / 회원가입 탭 세그먼트
   ============================================================ */
.auth-tab-segment {
  display: flex;
  background-color: var(--bg-subtle);
  padding: 3px;
  border-radius: 10px;
  gap: 3px;
}

.auth-tab-btn {
  background: none;
  border: none;
  padding: 6px 14px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 7px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.auth-tab-btn.active {
  background-color: var(--bg-card);
  color: var(--text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .auth-tab-btn.active {
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.btn-emerald {
  background: linear-gradient(135deg, #059669 0%, #10b981 100%) !important;
  color: #ffffff !important;
}

.btn-emerald:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}

/* ============================================================
   내 학습 기록 (My Archive) - 50MB 시험지 보관소 스타일
   ============================================================ */
.archive-saved-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-top: 10px;
  gap: 10px;
  font-size: 0.84rem;
}

.archive-notice-left {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-weight: 600;
}

/* iOS 스타일 모달 스프링 애니메이션 */
@keyframes iosModalSpring {
  0% {
    opacity: 0;
    transform: scale(0.92) translateY(24px);
  }
  60% {
    opacity: 1;
    transform: scale(1.015) translateY(-3px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.archive-modal-card {
  max-width: 540px;
  width: 92%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  box-shadow: 0 20px 48px -12px rgba(0, 0, 0, 0.28), 0 0 0 1px var(--border-color);
  animation: iosModalSpring 0.36s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.archive-modal-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.archive-modal-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.archive-modal-body {
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  box-sizing: border-box;
}

.archive-member-content {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* 50MB 스토리지 게이지 카드 (상단 중앙 뱃지 및 액션 버튼 디자인) */
.storage-status-card {
  position: relative;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 16px 14px 12px;
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  box-sizing: border-box;
}

.storage-header-badge {
  position: absolute;
  top: -10px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--bg-card);
  padding: 1px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  user-select: none;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.storage-status-center {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0 4px;
}

.storage-val-group {
  display: flex;
  align-items: baseline;
  font-variant-numeric: tabular-nums;
}

.storage-used-mb {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.4px;
  font-family: inherit;
}

.storage-unit {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent);
  margin-left: 2px;
}

.storage-divider {
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.45;
  margin: 0 6px;
}

.storage-max-mb {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.storage-percent-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-variant-numeric: tabular-nums;
  transition: all 0.2s ease;
}

.storage-percent-badge.warning {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.3);
}

.storage-bar-wrap {
  width: 100%;
  height: 7px;
  background-color: var(--border-color);
  border-radius: 999px;
  overflow: hidden;
}

.storage-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #10b981 0%, #3b82f6 100%);
  border-radius: 999px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.storage-progress-bar.warning {
  background: linear-gradient(90deg, #f59e0b 0%, #ef4444 100%);
}

.storage-caption {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
  text-align: center;
}

/* 2단 저장소 액션 버튼 (상단 100% 폭 PDF 비우기, 하단 2분할 버튼) */
.storage-actions-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 2px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-color);
  width: 100%;
  box-sizing: border-box;
}

.storage-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 6px 4px;
  border-radius: 8px;
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  transition: var(--transition-fast);
  white-space: nowrap;
  box-sizing: border-box;
}

.storage-btn.full-width {
  width: 100%;
  padding: 8px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-main);
  background-color: var(--bg-card);
}

.storage-btn.full-width:hover {
  background-color: var(--bg-subtle);
  color: var(--accent);
  border-color: var(--accent);
}

.storage-sub-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  width: 100%;
  box-sizing: border-box;
}

.storage-sub-actions .storage-btn {
  width: 100%;
}

.storage-btn:hover {
  background-color: var(--bg-subtle);
  color: var(--text-main);
  border-color: var(--text-muted);
}

.storage-btn:active {
  transform: scale(0.96);
}

.storage-btn.danger {
  color: #ef4444;
}

.storage-btn.danger:hover {
  background-color: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.4);
  color: #dc2626;
}

/* 보관함 시험지 리스트 */
.archive-list-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.archive-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border-color);
}

.list-header-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}

.list-header-count {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
}

.archive-empty-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 36px 16px;
  text-align: center;
  color: var(--text-muted);
  gap: 8px;
}

.archive-empty-box .empty-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
}

.archive-empty-box .empty-sub {
  font-size: 0.8rem;
  margin: 0;
}

.archive-exam-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 400px;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 2px;
  width: 100%;
  box-sizing: border-box;
}

/* 개별 시험지 카드 */
.archive-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--transition-fast);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: visible;
}

.archive-card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .archive-card:hover {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

/* 1. 상단 행: 제목 + 우측 삭제 아이콘 */
.archive-card-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
}

.archive-card-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
  word-break: break-all;
  flex: 1;
}

.btn-archive-delete {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 4px;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-fast);
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: -2px;
}

.btn-archive-delete:hover {
  color: #ef4444;
  background-color: rgba(239, 68, 68, 0.08);
}

/* 2. 메타 칩 행 */
.archive-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  width: 100%;
  box-sizing: border-box;
}

.archive-meta-chip {
  font-size: 0.73rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 6px;
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  white-space: nowrap;
}

.archive-meta-chip.primary {
  background-color: rgba(59, 130, 246, 0.1);
  color: #2563eb;
}

[data-theme="dark"] .archive-meta-chip.primary {
  background-color: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

.archive-meta-chip.mode {
  background-color: rgba(16, 185, 129, 0.1);
  color: #059669;
}

[data-theme="dark"] .archive-meta-chip.mode {
  background-color: rgba(16, 185, 129, 0.18);
  color: #34d399;
}

.archive-meta-chip.size {
  font-variant-numeric: tabular-nums;
}

/* 3. 하단 행 1: 다운로드 버튼 3개 한 줄 */
.archive-card-download-row {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding-top: 7px;
  border-top: 1px solid var(--border-color);
  margin-top: 2px;
  width: 100%;
  box-sizing: border-box;
}

.archive-btn-group-left {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  width: 100%;
  box-sizing: border-box;
}

.btn-archive-compact {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  border-radius: 6px;
  font-size: 0.74rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
  box-sizing: border-box;
}

.btn-archive-compact svg {
  flex-shrink: 0;
}

/* 1. PDF 다운로드 버튼 (에메랄드) */
.btn-archive-compact.pdf {
  background-color: rgba(16, 185, 129, 0.08);
  color: #059669;
  border-color: rgba(16, 185, 129, 0.22);
}

.btn-archive-compact.pdf:hover {
  background-color: #10b981;
  color: #ffffff;
  border-color: #10b981;
}

/* 2. 정답지 다운로드 버튼 (블루) */
.btn-archive-compact.answers {
  background-color: rgba(59, 130, 246, 0.08);
  color: #2563eb;
  border-color: rgba(59, 130, 246, 0.22);
}

.btn-archive-compact.answers:hover {
  background-color: #3b82f6;
  color: #ffffff;
  border-color: #3b82f6;
}

/* 3. 암기표 버튼 (인디고) */
.btn-archive-compact.study {
  background-color: rgba(99, 102, 241, 0.08);
  color: #4f46e5;
  border-color: rgba(99, 102, 241, 0.22);
}

.btn-archive-compact.study:hover {
  background-color: #6366f1;
  color: #ffffff;
  border-color: #6366f1;
}

.btn-archive-compact.expired {
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  border-color: var(--border-color);
  cursor: not-allowed;
  opacity: 0.6;
}

/* 4. 하단 행 2: 다운로드 줄 아래 우측 정렬 날짜 */
.archive-card-date-row {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: 100%;
  margin-top: -2px;
  padding-top: 1px;
  box-sizing: border-box;
}

.archive-card-date {
  font-size: 0.71rem;
  color: var(--text-muted);
  white-space: nowrap;
  letter-spacing: -0.2px;
  opacity: 0.82;
}

/* 게스트 전용 안내 박스 */
.archive-guest-box {
  background-color: var(--bg-subtle);
  border: 1px dashed var(--border-color);
  border-radius: 12px;
  padding: 24px 18px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.guest-box-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.guest-box-title {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
}

.guest-box-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

/* ==========================================================================
   설정 모달 및 이벤트 코드 (위장 창)
   ========================================================================== */
.settings-modal-card {
  max-width: 440px;
  width: 90%;
  border-radius: var(--radius-lg);
  padding: 0;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.settings-modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.settings-card-item {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.settings-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.settings-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.settings-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent);
}

.settings-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.4;
}

.event-code-form {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.event-code-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.event-code-input-row .text-input {
  flex: 1;
  height: 40px;
  font-size: 0.88rem;
  font-family: inherit;
  padding: 0 12px;
  border-radius: var(--radius-sm);
}

.event-code-input-row .btn-primary {
  height: 40px;
  padding: 0 16px;
  white-space: nowrap;
  font-weight: 700;
  font-size: 0.86rem;
  border-radius: var(--radius-sm);
}

.event-code-msg {
  font-size: 0.8rem;
  font-weight: 600;
  margin: 4px 0 0 0;
  line-height: 1.4;
}

.event-code-msg.success {
  color: #10b981;
}

.event-code-msg.error {
  color: #ef4444;
}

/* ==========================================================================
   내 빈칸테스트 전용 모달 (Study Modal)
   ========================================================================== */
.study-modal-card {
  max-width: 540px;
  width: 92%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  box-shadow: 0 20px 48px -12px rgba(0, 0, 0, 0.28), 0 0 0 1px var(--border-color);
  animation: iosModalSpring 0.36s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.study-modal-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.study-modal-body {
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  width: 100%;
  box-sizing: border-box;
}

.study-member-content {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.study-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border-color);
}

.study-list-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}

.study-list-count {
  font-size: 0.82rem;
  font-weight: 600;
  color: #4f46e5;
}

[data-theme="dark"] .study-list-count {
  color: #818cf8;
}

.study-exam-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 480px;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 2px;
  width: 100%;
  box-sizing: border-box;
}

/* 개별 빈칸테스트 카드 */
.study-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: var(--transition-fast);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: visible;
}

.study-card:hover {
  border-color: #6366f1;
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.12);
  transform: translateY(-1px);
}

[data-theme="dark"] .study-card:hover {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.25);
}

.study-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
}

.study-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.35;
  word-break: break-all;
  flex: 1;
}

.study-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  width: 100%;
  box-sizing: border-box;
}

.study-card-action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
  margin-top: 2px;
  gap: 8px;
  width: 100%;
  box-sizing: border-box;
}

.study-card-date {
  font-size: 0.72rem;
  color: var(--text-muted);
  white-space: nowrap;
  letter-spacing: -0.2px;
  opacity: 0.85;
}

.btn-study-start-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  background-color: #4f46e5;
  color: #ffffff;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 2px 6px rgba(79, 70, 229, 0.25);
  white-space: nowrap;
  line-height: 1;
}

.btn-study-start-action:hover {
  background-color: #4338ca;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
  transform: translateY(-1px);
}

.btn-study-start-action:active {
  transform: scale(0.97);
}

/* ==========================================================================
   빈칸테스트 전용 몰입형 뷰 (Focused Study View)
   ========================================================================== */
.study-mode-view {
  display: flex;
  flex-direction: column;
  gap: 18px;
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
  padding: 8px 0 60px;
  box-sizing: border-box;
  animation: fadeIn 0.28s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.study-mode-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 18px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  position: sticky;
  top: 12px;
  z-index: 40;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  box-sizing: border-box;
}

[data-theme="dark"] .study-mode-nav {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.exit-study-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 13px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.82rem;
  background-color: var(--bg-subtle);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

.exit-study-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateX(-1px);
}

.study-mode-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 1;
  min-width: 0;
  padding: 0 8px;
}

.study-mode-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  line-height: 1.3;
}

.study-mode-meta {
  font-size: 0.75rem;
  color: #4f46e5;
  font-weight: 600;
  margin-top: 2px;
  letter-spacing: -0.2px;
}

[data-theme="dark"] .study-mode-meta {
  color: #818cf8;
}

.study-mode-tools {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.study-tool-btn {
  font-size: 0.76rem;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.study-tool-btn:hover {
  color: var(--text-main);
  border-color: #6366f1;
  background-color: rgba(99, 102, 241, 0.08);
}

.study-cards-container {
  width: 100%;
  box-sizing: border-box;
}

/* 모바일 전용 네비게이션 정돈 */
@media (max-width: 640px) {
  .study-mode-nav {
    flex-wrap: wrap;
    padding: 10px 12px;
    gap: 8px;
  }
  .study-mode-info {
    order: 3;
    width: 100%;
    align-items: flex-start;
    text-align: left;
    padding: 4px 0 0 0;
    border-top: 1px solid var(--border-color);
    margin-top: 4px;
  }
  .study-mode-title {
    font-size: 0.95rem;
  }
}