/*
================================================================================
 1. グローバルスタイル & 基本設定
   - :root 変数, body スタイル, 基本的なレイアウトコンテナなど
================================================================================
*/
:root {
  --primary-color: #5e5df0;
  --primary-hover-color: #4341d1;
  --secondary-color: #657786;
  --secondary-hover-color: #4d5d6a;
  --success-color: #28a745;
  --success-hover-color: #218838;
  --danger-color: #e0245e;
  --danger-hover-color: #b81d4b;
  --info-color: #17a2b8;
  --info-hover-color: #138496;
  --r2-save-color: #ff8c00;
  --r2-save-hover-color: #cc7000;
  --background-color: rgba(255, 255, 255, 1);
  --text-color: #1a1a1a;
  --text-muted-color: #657786;
  --border-color: #e1e8ed;
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 32px rgba(31, 38, 135, 0.1);
}
body {
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.6;
  background-color: #ffffff;
  color: var(--text-color);
  position: relative;
  min-height: 100vh;
}
body.no-transition,
body.no-transition * {
  transition: none !important;
}
#background-container {
  display: none;
}
#bg-fade-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: transparent;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  opacity: 0;
  z-index: 2;
  pointer-events: none;
  box-sizing: border-box; /* ← この一行を追加 */
}
body.drag-over::before {
  content: 'ここに画像または設定ZIPファイルをドロップ';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(94, 93, 240, 0.8);
  color: white;
  font-size: 2rem;
  font-weight: bold;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  pointer-events: none;
  border: 4px dashed white;
  box-sizing: border-box;
}
.container-wrapper {
}
.container-header {
}
.container-content {
  padding: 0;
}
.page-container {
  display: flex;
  height: 100vh;
  position: relative;
  z-index: 5;
}

/*
================================================================================
 2. レイアウト & ナビゲーション
   - サイドバー, ヘッダー, メインコンテンツエリアの構造
================================================================================
*/
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background-color: #ffffff;
  padding: 20px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  border-right: 1px solid var(--border-color);
}
.sidebar .tab-link.active {
  background-color: var(--primary-color);
  color: white;
}
.sidebar hr {
  border-color: var(--border-color);
}
.tab-navigation-vertical {
  position: relative;
}
.tab-navigation-vertical .tab-link {
  display: block;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--text-muted-color);
  font-weight: 500;
  border-radius: var(--border-radius-sm);
  margin-bottom: 8px;
  transition:
    background-color 0.2s,
    color 0.2s;
  border-bottom: none;
  white-space: nowrap;
}
.sidebar.has-background .tab-navigation-vertical .tab-link {
  color: rgba(255, 255, 255, 0.8);
}
.sidebar.has-background .tab-navigation-vertical .tab-link:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}
.sidebar.has-background .tab-navigation-vertical .tab-link.active {
  background-color: rgba(94, 93, 240, 0.8);
  color: white;
  font-weight: 600;
}
.tab-navigation-vertical .tab-link:hover {
  background-color: #f0f2f5;
  color: var(--primary-color);
}
.tab-navigation-vertical .tab-link.active {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
  border-color: transparent;
}
.sidebar hr {
  border: 0;
  border-top: 1px solid var(--border-color);
  margin: 1rem 0;
  position: relative;
}
.sidebar.has-background hr {
  border-top-color: rgba(255, 255, 255, 0.3);
}
.main-area {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  width: 100%;
}
.page-header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 20px;
  padding: 12px 32px;
  background-color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
  position: relative;
  z-index: 10;
  height: 65px;
  box-sizing: border-box;
}
.page-header #auth-status-container {
  padding: 0;
  border: 0;
  background-color: transparent;
}
.page-header .compact-menu-container {
  margin-bottom: 0;
}
.main-content {
  flex-grow: 1;
  /* padding: 2rem;  <-- パディングは子要素に移すので削除 */
  overflow: hidden; 
  background-color: var(--background-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  margin: 0;
  display: flex;
  flex-direction: column;
  
  /* ▼▼▼ 以下を追加 ▼▼▼ */
  position: relative; /* 子要素を absolute 配置するための基準点 */
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px; /* アイコン間のスペース */
}

/* 以前追加した global-toggle-wrapper のスタイルは不要であれば削除 */
.global-toggle-wrapper {
  flex-grow: 0;
}

.two-column-layout {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease-in-out; /* 表示を滑らかにする */
}

/* bodyに 'js-initialized' クラスが付いたら表示する */
body.js-initialized .two-column-layout {
  opacity: 1;
  visibility: visible;
}


================================================================================
 3. 汎用コンポーネント & フォーム要素
   - ボタン, 入力欄, カード, スライダー, トグルスイッチなど
================================================================================
*/
.tab-button {
  padding: 0.75rem 0.25rem;
  border: 0;
  background-color: transparent;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted-color);
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  margin-bottom: -1px;
  transition:
    color 0.2s,
    border-color 0.2s;
}
.tab-button:hover {
  color: var(--primary-color);
}
.tab-button.active {
  color: var(--primary-color);
  border-color: var(--primary-color);
}
.view-content {
  /* 親コンテナ(.main-content)いっぱいに広がるように設定 */
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  
  /* 内部のレイアウト設定 */
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 2rem; /* ← 親から移動してきたpadding */
  box-sizing: border-box;

  /* フェード効果の核となる設定 */
  opacity: 0; /* 通常は透明で見えない */
  transition: opacity 0.3s ease-in-out, visibility 0.3s; /* visibilityもアニメーション対象に */

  /* 透明な要素がクリックを妨げないようにする */
  pointer-events: none;
  visibility: hidden; 
}

/* 表示されるビューに適用するスタイル */
.view-content.active {
  opacity: 1; /* 不透明にする（フェードイン） */
  pointer-events: auto; /* クリックできるようにする */
  visibility: visible;
  
  /* z-indexを追加して、アクティブなビューが最前面に来るようにする */
  z-index: 1; 
}

/*
  互換性のために、.tab-content にも同じスタイルを適用しておく。
  将来的には .view-content に統一するのが望ましい。
*/
.tab-content {
  /* .view-content と全く同じスタイルを適用 */
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  /* .tab-content自体にpaddingは設定しないでおく */
  box-sizing: border-box;
  opacity: 0;
  transition: opacity 0.3s ease-in-out, visibility 0.3s;
  pointer-events: none;
  visibility: hidden; 
}

.tab-content.active {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
  z-index: 1;
}
label,
.button-group,
.setting-item {
  cursor: default;
}
textarea,
input,
select {
  cursor: text;
}
button,
input[type='range'] {
  cursor: pointer;
}
label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-color);
}
textarea,
input,
select {
  width: 100%;
  padding: 12px;
  margin-bottom: 16px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  box-sizing: border-box;
  font-size: 16px;
  background-color: #fff;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}
textarea:focus,
input:focus,
select:focus {
  outline: 0;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(94, 93, 240, 0.2);
}
.grid-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
@media (min-width: 600px) {
  .grid-container {
    grid-template-columns: 1fr 1fr;
  }
}
.grid-container-top {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  align-items: flex-start;
  margin-bottom: 1rem;
}
.grid-container-top > .setting-item {
  margin-bottom: 0;
}
@media (max-width: 600px) {
  .grid-container-top {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}
button {
  border: 0;
  border-radius: var(--border-radius-sm);
  font-size: 16px;
  font-weight: 600;
  padding: 12px 20px;
  color: white;
  cursor: pointer;
  transition:
    background-color 0.2s,
    transform 0.1s,
    box-shadow 0.2s;
}
button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
button:active:not(:disabled) {
  transform: translateY(0);
}
button:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}
.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 1rem;
}
.button-group button {
  flex: 1;
}
#status {
  margin-top: 1.5rem;
  padding: 12px;
  border-radius: var(--border-radius-sm);
  min-height: 1.5em;
  font-weight: 500;
  word-break: break-word;
  border: 1px solid transparent;
}
.status-info {
  background-color: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}
.status-error {
  background-color: #fee2e2;
  color: #b91c1c;
  border-color: #fecaca;
}

.btn-delete-r2:hover {
  color: var(--danger-color);
  border-color: var(--danger-color);
}
.btn-view-user-files:hover {
  color: var(--info-color);
  border-color: var(--info-color);
}
.btn-share:hover:not(:disabled) {
  color: var(--info-color);
  border-color: var(--info-color);
}
.custom-audio-player {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 32px;
  width: 100%;
}
.play-pause-btn {
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
  transition:
    background-color 0.2s,
    transform 0.2s;
  border: 0;
}
.play-pause-btn:hover {
  background-color: var(--primary-hover-color);
  transform: scale(1.05);
}
.play-pause-btn.playing {
  background-color: var(--secondary-color);
}
.play-pause-btn.playing:hover {
  background-color: var(--secondary-hover-color);
}
.play-pause-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}
.play-icon {
  transform: translateX(0px);
}
.progress-wrapper {
  flex-grow: 1;
  height: 6px;
  background-color: #e0e0e0;
  border-radius: 3px;
  cursor: pointer;
  position: relative;
}
.progress-bar {
  height: 100%;
  width: 0;
  background-color: var(--primary-color);
  border-radius: 3px;
}
.time-display {
  font-size: 0.8em;
  color: var(--text-muted-color);
  min-width: 75px;
  text-align: right;
  user-select: none;
}
.slider-container {
  display: flex;
  align-items: center;
  gap: 10px;
}
.slider-container input[type='range'] {
  flex-grow: 1;
  width: auto;
  margin-bottom: 0;
}
.slider-container input[type='number'] {
  width: 80px;
  flex-shrink: 0;
  margin-bottom: 0;
}
.slider-container span {
  min-width: 40px;
  text-align: right;
}
.interval-control {
  display: flex;
  align-items: center;
  gap: 8px;
}
.interval-control input {
  width: 60px;
  text-align: center;
  margin-bottom: 0;
}
.interval-control label {
  margin-bottom: 0;
  font-size: 0.9em;
  font-weight: normal;
}
.setting-item {
  margin-bottom: 1.5rem;
}
.setting-item label {
  margin-bottom: 8px;
}
.display-name-editor {
  display: flex;
  gap: 10px;
  align-items: center;
}
.display-name-editor input {
  flex-grow: 1;
  margin-bottom: 0;
}
.display-name-editor button {
  padding: 8px 12px;
  font-size: 14px;
  background-color: var(--secondary-color);
  flex-shrink: 0;
}
.btn-reset {
  width: 100%;
  margin-top: 1rem;
  background-color: var(--secondary-color);
}
.btn-reset.btn-info {
  background-color: var(--info-color);
}
.btn-reset.btn-info:hover {
  background-color: var(--info-hover-color);
}
.btn-reset.btn-danger {
  background-color: var(--danger-color);
}
.btn-reset.btn-danger:hover {
  background-color: var(--danger-hover-color);
}
.toggle-switch-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}
.toggle-switch {
  display: none;
}
.toggle-slider {
  position: relative;
  width: 50px;
  height: 26px;
  background-color: #ccc;
  border-radius: 13px;
  transition: background-color 0.2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: white;
  top: 2px;
  left: 2px;
  transition: transform 0.2s;
}
.toggle-switch:checked + .toggle-slider {
  background-color: var(--primary-color);
}
.toggle-switch:checked + .toggle-slider::before {
  transform: translateX(24px);
}
.card-owner-info {
  margin: 0;
  word-break: break-all;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.card-owner-info .is-own {
  font-size: 0.8em;
  color: var(--primary-color);
  font-weight: bold;
}
.card-owner-info .model-name,
.card-owner-info .username {
  cursor: pointer;
  text-decoration: none;
  transition:
    color 0.2s,
    text-decoration 0.2s;
}
.card-owner-info .model-name:hover,
.card-owner-info .username:hover {
  color: var(--primary-color);
  text-decoration: underline;
}




#auth-status-container {
  display: flex;
  align-items: center;
  gap: 15px;
  background-color: #f9fafb;
  padding: 12px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  justify-content: space-between;
}
#user-display-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}
#user-info {
  font-weight: 600;
  color: var(--text-color);
  font-size: 14px;
  max-width: 150px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#auth-status-container button {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  margin: 0;
}
#login-btn {
  background-color: var(--primary-color);
}
#login-btn:hover:not(:disabled) {
  background-color: var(--primary-hover-color);
}
#logout-btn {
  background-color: var(--secondary-color);
}
#logout-btn:hover {
  background-color: var(--secondary-hover-color);
}
#edit-username-btn {
  background-color: #f3f4f6;
  color: var(--text-muted-color);
  width: 32px;
  height: 32px;
  font-size: 1rem;
  padding: 0;
  border-radius: 50%;
}
#edit-username-btn:hover {
  background-color: #e5e7eb;
}
.locked-feature {
  position: relative;
  pointer-events: none;
}
.locked-feature::after {
  content: 'ログインが必要です';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(248, 249, 250, 0.7);
  color: #555;
  font-size: 1rem;
  font-weight: bold;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  border-radius: inherit;
  z-index: 10;
  cursor: not-allowed;
}
.tab-button.locked-feature::after {
  border-radius: 0;
  font-size: 0.8em;
}
#toast-container {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  pointer-events: none;
}
.toast-message {
  background-color: rgba(26, 26, 26, 0.9);
  backdrop-filter: blur(5px);
  color: white;
  padding: 12px 20px;
  border-radius: 25px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
.toast-message.show {
  opacity: 1;
  transform: translateY(0);
}
.toast-message.error {
  background-color: var(--danger-hover-color);
}
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 0.75rem;
  cursor: pointer;
}
.checkbox-item input[type='checkbox'] {
  width: auto;
  margin-bottom: 0;
  cursor: pointer;
}
.checkbox-item label {
  margin-bottom: 0;
  font-weight: normal;
  cursor: pointer;
  flex-grow: 1;
}
.searchable-select-container {
  position: relative;
  width: 100%;
}
.searchable-select-input-wrapper {
  position: relative;
}
.searchable-select-input {
  width: 100%;
  padding-right: 30px;
  box-sizing: border-box;
}
.clear-search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border: 0;
  background-color: #ccc;
  color: white;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  justify-content: center;
  align-items: center;
  font-weight: bold;
  line-height: 20px;
  padding: 0;
}
.searchable-select-input:not(:placeholder-shown) + .clear-search-btn {
  display: flex;
}
.searchable-select-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: white;
  border: 1px solid var(--border-color);
  border-top: 0;
  border-radius: 0 0 var(--border-radius-sm) var(--border-radius-sm);
  z-index: 1002;
  max-height: 165px;
  overflow-y: auto;
  box-shadow: var(--shadow-sm);
}
.searchable-select-option {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.searchable-select-option:hover,
.searchable-select-option.highlighted {
  background-color: #f0f0f0;
}
.searchable-select-option.no-results {
  color: var(--text-muted-color);
  cursor: default;
}
.ng-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px;
  border-bottom: 1px solid var(--border-color);
}
.ng-list-item:last-child {
  border-bottom: 0;
}
.ng-list-text {
  font-size: 14px;
  color: var(--text-color);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-right: 10px;
}
.ng-list-remove-btn {
  padding: 4px 8px;
  font-size: 12px;
  background-color: var(--secondary-color);
  flex-shrink: 0;
}
.volume-control {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px;
}
.volume-control label {
  font-size: 0.9em;
  margin-bottom: 0;
  flex-shrink: 0;
}
.volume-control input[type='range'] {
  flex-grow: 1;
  margin: 0;
  width: auto;
}
.volume-control .volume-value {
  font-size: 0.9em;
  min-width: 30px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.loading-indicator {
  text-align: center;
  padding: 1rem;
  color: var(--text-muted-color);
  font-style: italic;
}
#hide-ui-btn {
  display: none;
}
#show-ui-btn {
  display: none;
}
.container-wrapper.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.compact-menu-container {
  position: relative;
  display: inline-block;
}
.menu-toggle-btn {
}
.menu-toggle-btn:hover {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(94, 93, 240, 0.2);
}
.icon-menu-toggle-btn {
  background-color: transparent;
  border: 1px solid transparent;
  color: var(--secondary-color);
  width: 40px;
  height: 40px;
  font-size: 1.5rem;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0;
}
.icon-menu-toggle-btn:hover {
  background-color: #f0f2f5;
  color: var(--text-color);
}
.tab-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-md);
  z-index: 1010;
  width: 220px;
  padding: 0.5rem 0;
  margin-top: 4px;
  max-height: 300px;
  overflow-y: auto;
}
.tab-dropdown-menu.align-right {
  left: auto;
  right: 0;
}
.tab-dropdown-menu.show {
  display: block;
}
.tab-dropdown-menu .tab-link {
  display: block;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: background-color 0.2s;
}
.tab-dropdown-menu .tab-link:hover {
  background-color: #f0f2f5;
}
.tab-dropdown-menu .tab-link.active {
  font-weight: 700;
  color: var(--primary-color);
  background-color: #eef2ff;
}
.two-column-layout {
  display: flex;
  height: 100vh;
}
.main-content-wrapper {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  width: 100%;
  overflow: hidden;
}
.content-columns {
  display: flex;
  flex-grow: 1;
  overflow: hidden;
  padding: 2rem;
  gap: 2rem;
}
/* 親要素(.left-column-bg)のレイアウト設定 */
.left-column-bg {
  flex: 1 1 0;
  min-width: 0;
  
  display: flex;
  flex-direction: column;
  position: relative; 
  border-radius: var(--border-radius-md);
  overflow: hidden;
  border: 6px solid var(--frame-color, transparent); 
  box-sizing: border-box;
}
.left-column-bg.use-default-border {
  border: 6px solid #dee2e6; 
}

/* キャラクター名表示エリアのスタイル */
.character-name-plate {
  /* ▼▼▼ 以下をまるごと追加または置き換え ▼▼▼ */
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10;
  flex-shrink: 0;
  
  /* デザインは元のままでOK (以下は例) */
  background: rgba(0, 0, 0, 0.6);
  color: white;
  padding: 0.5rem 1rem;
  border-bottom-left-radius: 16px; /* 親の角丸に合わせる */
  border-bottom-right-radius: 16px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  /* ▲▲▲ ここまで ▲▲▲ */
}
#character-tags-display {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted-color);
  margin-top: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.right-column-ui {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 100%;
}
body.bg-adjust-mode .right-column-ui {
  opacity: 0 !important;
  visibility: hidden;
}
body.bg-adjust-mode .left-column-bg {
  cursor: grab;
}
body.bg-adjust-mode.grabbing .left-column-bg {
  cursor: grabbing;
}

/*
================================================================================
 4. タブ別スタイル
   - 各タブに特化した要素やコンテナのスタイル
================================================================================
*/

/* 4.1. 音声合成タブ (id="tab-tts") */
#generate-btn {
  background-color: var(--primary-color);
}
#generate-btn:hover:not(:disabled) {
  background-color: var(--primary-hover-color);
}
#save-to-r2-btn{
  background-color: var(--r2-save-color);
}
#save-to-r2-btn:hover:not(:disabled) {
  background-color: var(--r2-save-hover-color);
}
#tts-controls-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 1rem;
  margin-bottom: 1.5rem;
}
#tts-controls-wrapper > div > * {
  margin-bottom: 0;
}
#model-wrapper {
  grid-area: 1 / 1;
}
#toggle-wrapper {
  grid-area: 1 / 2;
  display: flex;
  align-items: center; /* ボタンを垂直中央に配置 */
  justify-content: flex-end; /* ボタンを右端に配置したい場合は残す */
  margin-bottom: 0;
}
#toggle-additional-settings-btn {
  background-color: var(--secondary-color);
  padding: 7px 25px;
  margin-right: 32px;
  min-width: 150px;
  text-align: center;
  box-sizing: border-box;
}
#toggle-additional-settings-btn:hover {
  background-color: var(--secondary-hover-color);
}
#style-id-wrapper {
  grid-area: 2 / 1;
}
#style-strength-wrapper {
  grid-area: 2 / 2;
}
#additional-settings-panel {
  display: none;
  flex-direction: column;
  gap: 1.5rem;
}
#tts-controls-wrapper.expanded #additional-settings-panel {
  display: flex;
  grid-area: 2 / 2;
}
#tts-controls-wrapper.expanded #style-id-wrapper {
  grid-area: 3 / 1;
}
#tts-controls-wrapper.expanded #style-strength-wrapper {
  grid-area: 3 / 2;
}

/* 4.2. セリフ作成タブ (id="tab-create") */
#generate-preview-btn {
  background-color: var(--success-color);
}
#generate-preview-btn:hover:not(:disabled) {
  background-color: var(--success-hover-color);
}
#save-preview-to-r2-btn {
  background-color: var(--r2-save-color);
}
#save-preview-to-r2-btn:hover:not(:disabled) {
  background-color: var(--r2-save-hover-color);
}

#create-container {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

#create-placeholder,
#playlist-placeholder { /* playlistと共通のためここに配置 */
  text-align: center;
  padding: 2rem;
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius-md);
  margin-top: 20px;
  background-color: #f9fafb;
}

#create-placeholder p,
#playlist-placeholder p { /* playlistと共通のためここに配置 */
  margin: 0 0 1rem;
  color: var(--text-muted-color);
}
#add-first-card-btn,
#playlist-add-first-card-btn { /* playlistと共通のためここに配置 */
  background-color: var(--primary-color);
}
#combined-preview-area {
  margin-top: 16px;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: #f9fafb;
  display: none;
}
#combined-preview-area h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.1em;
}
#combined-preview-area audio {
  width: 100%;
  margin-bottom: 8px;
}
#combined-preview-area .button-group button {
  padding: 8px 16px;
  font-size: 14px;
}
#download-combined-preview-btn {
  width: 100%;
  background-color: var(--success-color);
}


/* --- タイムラインの表示/非表示制御 --- */
#create-timeline-wrapper,
#timeline-zoom-controls {
  display: none !important;
}
#tab-create.advanced-controls-visible #create-timeline-wrapper,
#tab-create.advanced-controls-visible #timeline-zoom-controls {
  display: flex !important;
}
#tab-create.advanced-controls-visible #create-timeline-wrapper {
  display: block !important;
}


#card-scroll-area {
  flex-grow: 1;          /* 他の要素が使用した残りの高さをすべて埋める */
  overflow-y: auto;      /* 内容がはみ出した時だけ、縦スクロールバーを表示 */
  min-height: 0;         /* flexアイテムが無限に伸長するのを防ぐおまじない */
  padding-right: 10px;   /* スクロールバーのスペースを確保 */
}

/* 4.3. シェアタブ (id="tab-r2-gallery") */
#refresh-r2-gallery-btn,
#autoplay-btn,
#show-my-posts-btn {
  background-color: var(--info-color);
}
#refresh-r2-gallery-btn:hover:not(:disabled),
#autoplay-btn:hover:not(:disabled),
#show-my-posts-btn:hover:not(:disabled) {
  background-color: var(--info-hover-color);
}
#r2-gallery-container {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  
  max-height: none;
  flex-grow: 1;
  overflow-y: auto;
  min-height: 0;
  
  padding-right: 10px;
}
#r2-gallery-wrapper.locked-feature::after {
  border-radius: 8px;
}
#gallery-mode-indicator {
  display: none;
  align-items: center;
  justify-content: space-between;
  background-color: #e9ecef;
  padding: 8px 12px;
  border-radius: var(--border-radius-sm);
  margin-bottom: 1rem;
  border: 1px solid #dee2e6;
}
#gallery-mode-text {
  font-weight: 600;
  color: var(--secondary-color);
  font-size: 0.9em;
}
#gallery-back-to-home-btn {
  font-size: 12px;
  padding: 4px 10px;
  background-color: var(--secondary-color);
}
#gallery-back-to-home-btn:hover {
  background-color: var(--secondary-hover-color);
}
#autoplay-btn.playing {
  background-color: #dc3545;
  color: white;
}
#autoplay-btn.playing:hover:not(:disabled) {
  background-color: var(--danger-hover-color);
}

/* 4.3.2 */

/* =================================================== */
/* 5. クリエイティブシェアタブ (Optimized)             */
/* =================================================== */

/* --- コンテナと操作ボタン --- */
#refresh-creative-gallery-btn,
#creative-autoplay-btn,
#creative-show-my-posts-btn {
    background-color: var(--info-color);
}

#refresh-creative-gallery-btn:hover:not(:disabled),
#creative-autoplay-btn:hover:not(:disabled),
#creative-show-my-posts-btn:hover:not(:disabled) {
    background-color: var(--info-hover-color);
}

#creative-autoplay-btn.playing {
    background-color: var(--danger-color);
    color: white;
}
#creative-autoplay-btn.playing:hover:not(:disabled) {
    background-color: var(--danger-hover-color);
}

#creative-gallery-container {
    margin-top: 10px;
    max-height: none;
    flex-grow: 1;
    overflow-y: auto;
    min-height: 0;
    padding-right: 10px;
}

/* --- フィルターモード表示 --- */
#creative-gallery-mode-indicator {
    display: none;
    align-items: center;
    justify-content: space-between;
    background-color: #e9ecef;
    padding: 8px 12px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 1rem;
    border: 1px solid #dee2e6;
}

#creative-gallery-mode-text {
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 0.9em;
}

#creative-gallery-back-to-home-btn {
    font-size: 12px;
    padding: 4px 10px;
    background-color: var(--secondary-color);
}

#creative-gallery-back-to-home-btn:hover {
    background-color: var(--secondary-hover-color);
}

/* 4.4. プレイリスト作成タブ (id="tab-playlist") */
#playlist-container {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  max-height: 40vh;
  overflow-y: auto;
  padding-right: 10px;
}
#playlist-play-all-btn.playing {
  background-color: #dc3545;
  color: white;
}
#playlist-play-all-btn.playing:hover:not(:disabled) {
  background-color: var(--danger-hover-color);
}
#playlist-combined-preview-area {
  margin-top: 16px;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: #f9fafb;
  display: none;
}
#playlist-combined-preview-area h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.1em;
}
#playlist-combined-preview-area audio {
  width: 100%;
  margin-bottom: 8px;
}
#playlist-combined-preview-area .button-group button {
  padding: 8px 16px;
  font-size: 14px;
}
#playlist-download-combined-preview-btn {
  width: 100%;
  background-color: var(--success-color);
}
#playlist-timeline-wrapper {
  overflow-x: auto;
  padding: 10px 0;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  background-color: #f8f9fa;
  border-radius: var(--border-radius-sm);
  position: relative;
}
#playlist-timeline {
  position: relative;
  min-height: 50px;
}
#playlist-timeline-wrapper,
#timeline-zoom-slider-container,
#tab-playlist .player-card .volume-control,
#tab-playlist .player-card .start-time-control {
  display: none !important;
}
#tab-playlist.advanced-controls-visible #playlist-timeline-wrapper {
  display: block !important;
}
#tab-playlist.advanced-controls-visible #timeline-zoom-slider-container {
  display: flex !important;
  align-items: center;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 20px;
}
#tab-playlist.advanced-controls-visible .player-card .volume-control,
#tab-playlist.advanced-controls-visible .player-card .start-time-control {
  display: flex !important;
}

/* 4.5. プレイリストギャラリー (id="tab-playlist-share") */
#playlist-share-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-height: 70vh;
  overflow-y: auto;
  padding: 4px;
}
.playlist-card-container {
  position: relative;
  display: flex;
  border: 1px solid #cccccc;
  border-radius: var(--border-radius-md);
  transition: all 0.2s ease;
  background-color: #fff;
}
.playlist-card-container:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}
.playlist-card-link {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  color: var(--text-color);
  box-sizing: border-box;
}
.playlist-card-header {
  flex-shrink: 0;
}
.playlist-card-title {
  margin: 0;
  font-size: 1.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.playlist-card-footer {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted-color);
  flex-shrink: 0;
}
.ng-user-btn-list {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  font-size: 1.1rem;
  opacity: 0.2;
  transition: opacity 0.2s;
}
.playlist-card-container:hover .ng-user-btn-list {
  opacity: 1;
}
.playlist-card-models {
    display: flex;
    align-items: flex-start;
    justify-content: space-between; /* 両端に寄せる */
    min-height: 24px; /* コンテンツがない場合でも高さを確保 */
    gap: 8px; /* コンテンツとボタンの間に隙間を設ける */
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.playlist-card-models-content {
    flex-grow: 1;
    overflow: hidden;
}

.toggle-models-view-btn {
    flex-shrink: 0;
    padding: 0;
    width: 24px;
    height: 24px;
    line-height: 24px;
    text-align: center;
    border: none;
    background: transparent;
    cursor: pointer;
    color: #333;
}
.model-ratio-item {
}
.model-ratio-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}
.model-name {
  font-weight: 500;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right: 8px;
}
.model-percentage {
  font-weight: bold;
  flex-shrink: 0;
}
.ratio-bar-container {
  width: 100%;
  height: 6px;
  background-color: #e9ecef;
  border-radius: 3px;
  overflow: hidden;
}
.ratio-bar {
  height: 100%;
  background-color: var(--primary-color);
  border-radius: 3px;
  transition: width 0.3s ease-in-out;
}
.model-ratio-more {
  font-style: italic;
  margin-top: 4px;
}
#playlist-share-detail-view {
  padding: 20px;
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial,
    sans-serif;
}
.playlist-detail-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.playlist-detail-header h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
  flex-grow: 1;
}
.playlist-detail-description {
  font-size: 15px;
  color: #333333;
  margin-bottom: 24px;
  line-height: 1.6;
}
.playlist-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}
.play-all-button {
  background-color: #007bff;
  border: none;
  border-radius: 50px;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition:
    background-color 0.2s ease,
    transform 0.1s ease;
}
.play-all-button:hover {
  background-color: #1ed760;
}
.play-all-button:active {
  transform: scale(0.98);
}
.play-all-button.playing {
  background-color: #ff4500;
}
.play-all-button:disabled {
  background-color: #555;
  cursor: not-allowed;
}
#playlist-detail-cards-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
#playlist-detail-cards-container .icon-btn:hover {
  color: #ffffff;
}
#playlist-detail-cards-container .player-card .model-name {
  font-weight: bold;
  color: #696969;
}
#playlist-detail-cards-container .player-card p {
  color: #000000;
}
#playlist-detail-cards-container .custom-audio-player .play-pause-btn {
  background-color: #1db954;
}
#playlist-detail-cards-container .player-card.is-playing-card .progress-bar {
  background-color: #1db954;
}


/* 4.6. モデル設定タブ (id="tab-background") */
#gallery-container {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 1rem;
  margin-top: 1rem;
  padding-bottom: 10px;
  min-height: 138px;
}
.gallery-item {
  position: relative;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  padding: 8px;
  text-align: center;
  background-color: #fff;
  flex: 0 0 120px;
  transition: all 0.2s;
}
.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.gallery-item.active-bg {
  border: 2px solid var(--primary-color);
  box-shadow: 0 0 8px rgba(94, 93, 240, 0.5);
}
.gallery-item img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 8px;
  cursor: pointer;
}
.gallery-item-name {
  font-size: 12px;
  word-break: break-all;
  margin-bottom: 8px;
  min-height: 2.5em;
}
.btn-delete-img {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 24px;
  height: 24px;
  padding: 0;
  font-size: 16px;
  font-weight: bold;
  line-height: 24px;
  text-align: center;
  border-radius: 50%;
  background-color: var(--danger-color);
  color: white;
  opacity: 0.6;
  transition: opacity 0.2s;
}
.gallery-item:hover .btn-delete-img {
  opacity: 1;
}
#image-adjust-panel {
  border-top: 1px solid var(--border-color);
  margin-top: 1rem;
  padding-top: 1rem;
}
#upload-image-btn {
  width: 100%;
  margin-top: 1rem;
  background-color: var(--secondary-color);
}
body.bg-adjust-mode {
  cursor: grab;
}
body.bg-adjust-mode.grabbing {
  cursor: grabbing;
}
body.bg-adjust-mode .page-container .main-area,
body.bg-adjust-mode .page-container .page-header {
  opacity: 0 !important;
  visibility: hidden;
}
body.bg-adjust-mode .sidebar {
  transform: translateX(0);
}
#adjust-mode-controls {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  gap: 15px;
  padding: 15px;
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  z-index: 10000;
}
#adjust-mode-controls button {
  padding: 12px 25px;
  font-weight: bold;
  min-width: 120px;
}
.settings-top-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 1.5rem;
}

.settings-top-row > .setting-item {
  margin-bottom: 0;
}

/* 4.7. UI/データ管理タブ (id="tab-ui") */
#export-delete-panel {
  transition: all 0.3s ease;
}

/*
================================================================================
 5. その他 & 未分類
================================================================================
*/
#test-post-btn,
#test-post-preview-btn {
  background-color: var(--info-color);
}
#test-post-btn:hover:not(:disabled),
#test-post-preview-btn:hover:not(:disabled) {
  background-color: var(--info-hover-color);
}

/*
================================================================================
 6. 案内表示エリアのスタイル
================================================================================
*/
.tab-info {
  display: block;
  width: 100%;
  height: 100%;
  padding: 1.5rem;
  box-sizing: border-box;
  overflow-y: auto;
  background-color: rgba(248, 249, 250, 0.95);
  border: 1px solid #dee2e6;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: opacity 0.3s ease-in-out;
}


/*
================================================================================
 7. 三色ボタン
================================================================================
*/

.view-mode-buttons {
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid #ccc;
}

.view-mode-btn {
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  background-color: #f0f2f5;
  color: #333;
  border: none;
  border-right: 1px solid #ccc;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.view-mode-btn:last-child {
  border-right: none;
}

.view-mode-btn:hover {
  background-color: #e4e6eb;
}

.view-mode-btn.active {
  background-color: var(--primary-color, #007bff);
  color: #ffffff;
  font-weight: bold;
}

.view-mode-btn.active:hover {
  background-color: var(--primary-color, #007bff);
}

#r2-gallery-wrapper,
#creative-gallery-wrapper {
  display: flex;
  flex-direction: column;
  height: 100%;
}

body.line-view-background-active {
    background-color: #728ea4; /* LINEの背景色 */
    transition: background-color 0.3s ease;
}



#save-username-btn,
#save-permission-btn {
  /* --- 有効な時のスタイル (Default State) --- */
  background-color: var(--primary-color, #007bff); /* あなたのサイトの主要な色 */
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
  opacity: 1; /* ★重要：不透明度を1（100%）に設定 */
  transition: background-color 0.2s, opacity 0.2s; /* アニメーションを滑らかに */
}

/* マウスが乗った時のスタイル (Hover State) */
#save-username-btn:hover,
#save-permission-btn:hover {
  background-color: var(--primary-dark-color, #0056b3); /* 少し暗い色 */
}

/* ★★★ 無効になった時のスタイル (Disabled State) ★★★ */
#save-username-btn:disabled,
#save-permission-btn:disabled {
  background-color: #cccccc; /* 無彩色なグレー */
  color: #666666;
  opacity: 0.7; /* ★重要：少し透明にする */
  cursor: not-allowed;
}


/*
================================================================================
 4.8. ユーザー設定タブ内、ローカルモデル管理セクションのスタイル
================================================================================
*/
#tab-user-settings > .view-content.active {
  /* ビューポートの高さに応じて最大高さを設定 (必要に応じて調整してください) */
  max-height: 75vh; 
  /* 内容が最大高さを超えた場合にのみ、縦方向のスクロールバーを表示 */
  overflow-y: auto;
  /* スクロールバーが表示された際の余白を確保 */
  padding-right: 15px;
}

/* ----------------------------------------
   ローカルモデル管理パネルのスタイル
   ---------------------------------------- */

/* パネル内の各項目のラベルを少し太字にする */
#local-model-manager-panel .sub-setting-item label {
  font-weight: 600;
}

/* パネル内のボタンの基本スタイル */
#local-model-manager-panel button {
  background-color: var(--secondary-color);
}

/* パネル内のボタンのホバー時のスタイル (無効化されていない場合) */
#local-model-manager-panel button:hover:not(:disabled) {
  background-color: var(--secondary-hover-color);
}

/* アンインストールボタン (危険な操作) のスタイル */
#uninstall-model-btn {
  background-color: var(--danger-color);
}
#uninstall-model-btn:hover:not(:disabled) {
  background-color: var(--danger-hover-color);
}

/* インストールボタン (主要な操作) のスタイル */
#install-from-url-btn,
#install-from-file-btn {
  background-color: var(--primary-color);
}
#install-from-url-btn:hover:not(:disabled),
#install-from-file-btn:hover:not(:disabled) {
  background-color: var(--primary-hover-color);
}