/* ===================================================
   漫画プロフィール スタイルシート（クリーン・ライトテーマ）
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

:root {
  /* 背景色（白・超薄いグレー基調） */
  --bg-primary: #f8f9fa;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f3f4f6;
  --bg-viewer: #f0f2f5;
  
  /* 文字色 */
  --text-main: #1f2937;
  --text-muted: #4b5563;
  --text-sub: #9ca3af;

  /* アクセントカラー（自然で落ち着いたブルー） */
  --accent-color: #2563eb;
  --accent-light: #eff6ff;
  --progress-color: #2563eb;

  /* 境界線 */
  --border-color: #e5e7eb;
  --border-hover: #cbd5e1;

  /* 角丸 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* 影 */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.03);
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-float: 0 4px 16px rgba(0, 0, 0, 0.12);

  --viewer-max-width: 760px;
  --container-max-width: 760px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ===================================================
   プログレスバー（画面上端の読了ゲージ）
   =================================================== */
#progressBarContainer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: transparent;
  z-index: 1000;
  display: none;
}

#progressBar {
  width: 0%;
  height: 100%;
  background-color: var(--progress-color);
  transition: width 0.1s ease-out;
}

/* ===================================================
   トップ画面（目次一覧）
   =================================================== */
.view-index {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* エピソード一覧エリア */
.chapter-list-section {
  flex: 1;
  max-width: var(--container-max-width);
  width: 100%;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.chapter-count {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* エピソードカード */
.chapter-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chapter-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px 12px 12px;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-card);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
}

.chapter-card:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}

.chapter-thumb-wrapper {
  position: relative;
  width: 84px;
  height: 84px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: #e5e7eb;
  border: 1px solid var(--border-color);
}

.chapter-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.chapter-badge-overlay {
  position: absolute;
  top: 4px;
  left: 4px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 3px;
}

.chapter-info {
  flex: 1;
  min-width: 0;
}

.chapter-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 2px;
  letter-spacing: 0.05em;
}

.chapter-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chapter-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.chapter-read-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 7px 14px;
  background-color: var(--text-main);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.chapter-card:hover .chapter-read-btn {
  background-color: var(--accent-color);
}

/* Coming Soon（次回予告）カード */
.chapter-card-coming-soon {
  cursor: default;
  background-color: #fafafa;
  border-style: dashed;
  border-color: #d1d5db;
  box-shadow: none;
}

.chapter-card-coming-soon:hover {
  background-color: #fafafa;
  border-color: #d1d5db;
  box-shadow: none;
  transform: none;
}

.coming-soon-thumb {
  background-color: #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
}

.coming-soon-thumb-small {
  background-color: #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
}

.coming-soon-text {
  color: #6b7280 !important;
}

.chapter-coming-soon-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  background-color: #f3f4f6;
  border: 1px solid #e5e7eb;
  color: #6b7280;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.drawer-item-coming-soon {
  cursor: default;
  opacity: 0.75;
}

.drawer-item-coming-soon:hover {
  background: #fafafa;
  border-color: var(--border-color);
}

/* ===================================================
   漫画ビューアー画面（読む画面）
   =================================================== */
.view-viewer {
  display: none;
  background-color: var(--bg-viewer);
  min-height: 100vh;
  position: relative;
  z-index: 10;
  width: 100%;
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.15);
}

/* スワイプ中・右抜けアニメーション用 */
.view-viewer.slide-exit {
  transition: transform 0.28s cubic-bezier(0.32, 0.72, 0, 1);
  transform: translateX(100%) !important;
}

.view-viewer.slide-cancel {
  transition: transform 0.22s ease-out;
  transform: translateX(0) !important;
}

/* ビューアー表示中に背後で待機する目次画面 */
.view-index.behind-viewer {
  display: block !important;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

/* 上部ヘッダー（画面最上部に固定・高透明すりガラス） */
.viewer-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 50px;
  background: rgba(255, 255, 255, 0.35); /* しっかり透ける透明感 */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.03);
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 900;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.viewer-header.header-hidden {
  transform: translateY(-100%);
}

.header-icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  border-radius: 50%;
  background: #f3f4f6; /* 背景のグレーそのまま */
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12); /* マンガの上でボタンが綺麗に浮き立つ */
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.header-icon-btn:hover {
  background: #e5e7eb;
}

.header-title-container {
  text-align: center;
  flex: 1;
  padding: 0 12px;
  overflow: hidden;
}

.header-chapter-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  text-shadow: 0 1px 4px rgba(255, 255, 255, 0.95), 0 0 10px rgba(255, 255, 255, 0.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 漫画画像コンテナ */
.viewer-content {
  padding-top: 52px;
  padding-bottom: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  user-select: none;
}

.manga-page-list {
  width: 100%;
  max-width: var(--viewer-max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 32px; /* 画像ごとの上下の空白マージン */
  background-color: transparent;
  box-shadow: none;
}

.manga-image-wrapper {
  position: relative;
  width: 100%;
  min-height: 180px;
  background-color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.manga-img {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: bottom;
  opacity: 0;
  transition: opacity 0.25s ease-in;
}

.manga-img.loaded {
  opacity: 1;
}

/* 画像読み込み中のスケルトン表示 */
.manga-image-wrapper.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 24px;
  height: 24px;
  margin-top: -12px;
  margin-left: -12px;
  border: 2px solid #e5e7eb;
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.manga-image-wrapper.loaded::after {
  display: none;
}

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

/* フローティング ページ番号カウンター */
.page-counter-floating {
  position: fixed;
  bottom: 24px;
  right: 20px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-float);
  z-index: 800;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.page-counter-floating.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* 漫画の末尾ナビゲーション */
.viewer-footer-nav {
  max-width: var(--viewer-max-width);
  width: 100%;
  margin: 32px auto 0;
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.viewer-coming-soon-notice {
  text-align: center;
  padding: 16px 12px;
  background-color: var(--bg-card);
  border: 1px dashed #d1d5db;
  border-radius: var(--radius-md);
  margin-bottom: 4px;
}

.cs-notice-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: #6b7280;
  background: #f3f4f6;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 6px;
}

.cs-notice-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.cs-notice-sub {
  font-size: 0.8rem;
  color: var(--text-sub);
  margin-top: 2px;
}

.btn-next-chapter {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 14px;
  background-color: var(--accent-color);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
  transition: all 0.15s ease;
}

.btn-next-chapter:hover {
  background-color: #1d4ed8;
}

.btn-back-to-index {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 12px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.15s ease;
}

.btn-back-to-index:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-main);
}

/* ===================================================
   目次スライドメニュー（ドロワー）
   =================================================== */
.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.drawer-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.drawer-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  max-width: 85vw;
  height: 100%;
  background-color: var(--bg-surface);
  border-left: 1px solid var(--border-color);
  z-index: 1200;
  transform: translateX(100%);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
}

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

.drawer-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.drawer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
}

.drawer-close-btn {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #f3f4f6;
  color: var(--text-muted);
}

.drawer-close-btn:hover {
  background: #e5e7eb;
  color: var(--text-main);
}

.drawer-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.drawer-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: var(--radius-sm);
  background: #fafafa;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.15s ease;
}

.drawer-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.drawer-item.current {
  border-color: var(--accent-color);
  background: var(--accent-light);
}

.drawer-thumb {
  width: 48px;
  height: 48px;
  border-radius: 4px;
  object-fit: cover;
  object-position: top center;
  flex-shrink: 0;
  border: 1px solid var(--border-color);
}

.drawer-item-info {
  flex: 1;
  min-width: 0;
}

.drawer-item-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.drawer-item-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===================================================
   スマートフォン向け調整（横幅フル表示など）
   =================================================== */
@media (max-width: 768px) {
  .chapter-list-section {
    padding: 24px 16px 40px;
  }

  .chapter-thumb-wrapper {
    width: 74px;
    height: 74px;
  }

  .chapter-card-title {
    font-size: 0.9rem;
  }

  .chapter-read-btn {
    padding: 5px 10px;
    font-size: 0.75rem;
  }

  /* ビューアーはスマホでは横幅フル＋上下余白 */
  .manga-page-list {
    max-width: 100%;
    box-shadow: none;
    gap: 20px; /* スマホでの画像間の上下空白マージン */
  }

  .manga-image-wrapper {
    border-radius: 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
  }

  .viewer-content {
    padding-bottom: 40px;
  }

  .viewer-footer-nav {
    padding: 0 16px;
  }

  .viewer-header {
    padding: 0 12px;
  }

  .header-chapter-title {
    font-size: 0.95rem;
    font-weight: 700;
  }

  .page-counter-floating {
    bottom: 20px;
    right: 16px;
  }
}

/* ===================================================
   アクセス制限画面（不正アクセス・直接アクセス時）
   =================================================== */
.access-denied-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background-color: var(--bg-primary);
}

.access-denied-card {
  max-width: 420px;
  width: 100%;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.access-denied-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: #f3f4f6;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.access-denied-message {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.6;
}

/* ===================================================
   単発漫画表示モード（ボタン類を完全非表示）
   =================================================== */
body.single-chapter-mode #btnHeaderBack,
body.single-chapter-mode #btnOpenDrawer,
body.single-chapter-mode #btnNextChapter,
body.single-chapter-mode #btnFooterBack,
body.single-chapter-mode #viewerComingSoonNotice,
body.single-chapter-mode .viewer-footer-nav,
body.single-chapter-mode .drawer-backdrop,
body.single-chapter-mode .drawer-menu {
  display: none !important;
}

body.single-chapter-mode .header-title-container {
  margin: 0 auto;
}