.manga-viewer{
  max-width: 900px;
  margin: 1.5em auto;
  border: 1px solid rgba(0,0,0,.15);
  background: #fff;
}
.manga-viewer-stage{
  display:flex;
  align-items:stretch;
}
.manga-viewer-nav{
  width:52px;
  border:0;
  background:#fafafa;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:0;
  margin:0;
}
@media (max-width: 599px) {
  .manga-viewer-nav{
    width:32px;
  }
}

.manga-viewer-nav:hover{
  background:#eee;
}

.manga-viewer-nav svg{
  width:40px;
  height:40px;
  display:block;
  flex-shrink:0;
  pointer-events:none; /* SVGのクリックイベントを親ボタンに委譲 */
}
@media (max-width: 599px) {
  .manga-viewer-nav svg{
    width:32px;
    height:32px;
  }
}

.manga-viewer-imagewrap{
  flex:1;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  gap: 0;
}
.manga-viewer-img{
  width:100%;
  height:auto;
  display:block;
  user-select:none;
}

/* 画像ホバー時にカーソルをポインターに */
.manga-viewer-img:hover,
.manga-viewer-img-left:hover,
.manga-viewer-img-right:hover{
  cursor: pointer;
}

/* オーバレイ機能が有効な場合、画像ホバー時にカーソルを変更 */
.manga-viewer.has-overlay .manga-viewer-img:hover,
.manga-viewer.has-overlay .manga-viewer-img-left:hover,
.manga-viewer.has-overlay .manga-viewer-img-right:hover{
  cursor: zoom-in;
}
.manga-viewer-img-left{
  display:none; /* デフォルトは単ページ */
}

/* 見開き時に使うクラス（JSが付与） */
.manga-viewer.is-spread .manga-viewer-img-left,
.manga-viewer.is-spread .manga-viewer-img-right{
  width:50%;
}

/* 見開き時：通常の見開き表示 */
.manga-viewer.is-spread:not(.is-cover-single) .manga-viewer-img-left{
  display:block;
}

/* 見開き時：表紙（単ページ表示だが幅は2枚分維持） */
.manga-viewer.is-spread.is-cover-single .manga-viewer-img-left{
  display:none; /* 左画像は非表示 */
}
.manga-viewer.is-spread.is-cover-single .manga-viewer-imagewrap{
  justify-content: center; /* 中央配置 */
}
.manga-viewer.is-spread.is-cover-single .manga-viewer-img-right{
  width:50%; /* 右画像は50%幅（2枚分のうち1枚分） */
  flex-shrink: 0; /* 縮小しない */
}
.manga-viewer-ui{
  padding: 8px 12px;
  border-top: 1px solid rgba(0,0,0,.08);
  font-size: 14px;
  text-align:center;
}

/* 編集リンク（ログイン時のみ表示） */
.manga-viewer-edit-link{
  text-align: center;
  margin-top: 10px;
  padding: 8px;
  border-top: 1px solid rgba(0,0,0,.08);
}

.manga-viewer-edit-link a{
  font-size: 12px;
  color: #666;
  text-decoration: none;
  display: inline-block;
  padding: 4px 12px;
  border: 1px solid #ddd;
  border-radius: 3px;
  background: #f9f9f9;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.manga-viewer-edit-link a:hover{
  background: #f0f0f0;
  border-color: #bbb;
  color: #333;
}

/* オーバレイ拡大表示 */
.manga-viewer-overlay{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

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

.manga-viewer-overlay-content{
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 80px;
  box-sizing: border-box;
  gap: 0;
}

.manga-viewer-overlay-img{
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  user-select: none;
  cursor: pointer;
}

.manga-viewer-overlay-img-left{
  display: none; /* デフォルトは単ページ */
}

/* オーバレイ内の見開き表示 */
.manga-viewer-overlay.is-spread .manga-viewer-overlay-img-left{
  display: block;
}

.manga-viewer-overlay.is-spread .manga-viewer-overlay-img-left,
.manga-viewer-overlay.is-spread .manga-viewer-overlay-img-right{
  max-width: 50%;
}

.manga-viewer-overlay-close{
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border: 0;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
  transition: background 0.2s ease;
  z-index: 1;
}

.manga-viewer-overlay-close svg{
  width: 20px;
  height: 20px;
  display: block;
  flex-shrink: 0;
}

.manga-viewer-overlay-close:hover{
  background: rgba(255, 255, 255, 0.3);
}

.manga-viewer-overlay-nav{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 60px;
  border: 0;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
  transition: background 0.2s ease;
  z-index: 1;
}

.manga-viewer-overlay-nav svg{
  width: 24px;
  height: 24px;
  display: block;
  flex-shrink: 0;
}
@media (max-width: 599px) {
  .manga-viewer-overlay-nav svg{
    color: #000;
  }
}

.manga-viewer-overlay-nav:hover{
  background: rgba(255, 255, 255, 0.3);
}

.manga-viewer-overlay-prev{
  left: 20px;
}

.manga-viewer-overlay-next{
  right: 20px;
}

.manga-viewer-overlay-counter{
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  z-index: 1;
}

/* 確認モーダル */
.manga-viewer-confirm-modal{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.manga-viewer-confirm-modal.active{
  opacity: 1;
  visibility: visible;
}

.manga-viewer-confirm-modal-content{
  background: #fff;
  border-radius: 8px;
  padding: 24px;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.manga-viewer-confirm-modal-message{
  font-size: 16px;
  margin-bottom: 24px;
  color: #333;
  line-height: 1.6;
}

.manga-viewer-confirm-modal-buttons{
  display: flex;
  gap: 12px;
  justify-content: center;
}

.manga-viewer-confirm-modal-button{
  padding: 10px 24px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s ease;
  min-width: 80px;
}

.manga-viewer-confirm-modal-button-yes{
  background: #0073aa;
  color: #fff;
}

.manga-viewer-confirm-modal-button-yes:hover{
  background: #005a87;
}

.manga-viewer-confirm-modal-button-no{
  background: #ddd;
  color: #333;
}

.manga-viewer-confirm-modal-button-no:hover{
  background: #ccc;
}

/* モバイル対応 */
@media (max-width: 768px) {
  .manga-viewer-overlay-content{
    padding: 40px 20px;
  }
  
  .manga-viewer-overlay-nav{
    width: 50px;
    height: 50px;
    font-size: 36px;
  }
  
  .manga-viewer-overlay-prev{
    left: 10px;
  }
  
  .manga-viewer-overlay-next{
    right: 10px;
  }
  
  .manga-viewer-overlay-close{
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    font-size: 28px;
  }

  .manga-viewer-confirm-modal-content{
    padding: 20px;
    max-width: 320px;
  }

  .manga-viewer-confirm-modal-message{
    font-size: 14px;
    margin-bottom: 20px;
  }

  .manga-viewer-confirm-modal-button{
    padding: 8px 20px;
    font-size: 13px;
    min-width: 70px;
  }
}