/* ==============================================
       共通ボタンシステム
       ============================================== */

/* 基本ボタンスタイル */
.button {
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--animation-duration) ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: inherit;
}

/* Primary: 決定系（ログイン、送信、保存） */
.button--primary {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
}

.button--primary:hover {
  background: var(--color-accent-strong);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(var(--color-accent-rgb), 0.3);
}

.button--primary:active {
  transform: translateY(0);
}

/* Secondary: 通常系（キャンセル、閉じる） */
.button--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.button--secondary:hover {
  background: var(--color-target);
  border-color: var(--color-accent-text);
}

/* Danger: 削除系 */
.button--danger {
  background: var(--color-status-error);
  color: var(--color-button-text);
}

.button--danger:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(211, 47, 47, 0.3);
}

.button--danger:active {
  transform: translateY(0);
}

/* Link: テキストリンク風 */
.button--link {
  background: transparent;
  color: var(--color-accent-text);
  padding: 4px 8px;
}

.button--link:hover {
  color: var(--color-accent-strong);
  text-decoration: underline;
}

/* 無効化状態 */
.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ログイン画面スタイル */
.login-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-surface) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.login-container {
  background: var(--color-surface);
  border-radius: 16px;
  padding: 36px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-border);
  max-width: 480px;
  width: 95%;
}

.login-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}

.login-header__content {
  flex: 1;
  text-align: center;
}

.login-theme-toggle {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--animation-duration) ease;
  position: relative;
}

.login-theme-toggle:hover {
  background: var(--color-target);
  transform: scale(1.05);
}

.theme-icon {
  position: absolute;
  transition: all var(--animation-duration) ease;
}

.theme-icon--sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-dark .theme-icon--sun {
  opacity: 0;
  transform: rotate(180deg) scale(0);
}

.theme-icon--moon {
  opacity: 0;
  transform: rotate(-180deg) scale(0);
}

.theme-dark .theme-icon--moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.login-title {
  margin: 0 0 8px 0;
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--color-text);
}

.login-subtitle {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.login-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.login-select,
.login-input {
  padding: 16px 20px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.5;
  min-height: 56px;
  width: 100%;
  transition: all 0.2s ease;
  box-sizing: border-box;
}

.login-select:focus,
.login-input:focus {
  outline: none;
  border-color: var(--color-accent-text);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  transform: translateY(-1px);
}

/* ユーザーID検索入力欄専用スタイル */
#username-search {
  width: 100%;
  padding: 16px 20px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.5;
  min-height: 60px;
  transition: all 0.2s ease;
  box-sizing: border-box;
  font-weight: 500;
}

#username-search:focus {
  outline: none;
  border-color: var(--color-accent-text);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
  transform: translateY(-2px);
}

.login-button {
  padding: 16px 32px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  border: none;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--animation-duration) ease;
  margin-top: 16px;
  min-height: 56px;
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: inherit;
}

.login-button:hover {
  background: var(--color-accent-strong);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(var(--color-accent-rgb), 0.3);
}

.login-button:active {
  transform: translateY(0);
}

.login-error-message {
  margin-top: 16px;
  padding: 12px 16px;
  background-color: rgba(231, 76, 60, 0.1);
  border: 1px solid var(--color-status-off);
  border-radius: var(--border-radius, 8px);
  color: var(--color-status-off);
  font-size: 0.8rem;
  text-align: center;
  line-height: 1.5;
  animation: fadeIn var(--animation-duration, 0.3s) ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.guest-login-button {
  width: 100%;
  padding: 16px 32px;
  background: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--animation-duration) ease;
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: inherit;
}

.guest-login-button:hover {
  background: var(--color-target);
  border-color: var(--color-accent-text);
  transform: translateY(-1px);
}

.guest-login-button:active {
  transform: translateY(0);
}

/* 新しいログイン画面スタイル */

.username-search-container {
  position: relative;
}

.username-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: var(--shadow-hover);
  max-height: 200px;
  overflow-y: auto;
  z-index: 1000;
  margin-top: 4px;
}

.username-suggestion {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 56px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.username-suggestion:last-child {
  border-bottom: none;
}

.username-suggestion:hover,
.username-suggestion.selected {
  background: var(--color-target);
}

.suggestion-name {
  font-weight: 600;
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.4;
}

.suggestion-role {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: 2px;
}

.suggestion-create {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  font-weight: 600;
  font-size: 0.85rem;
}

.suggestion-create:hover {
  background: var(--color-accent-strong);
}

/* ヘッダーウィジェットコンテナ */
.header-widgets-container {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

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

.header-widgets-left {
  justify-content: flex-start;
}

.header-widgets-center {
  justify-content: center;
  flex: 1;
}

.header-widgets-right {
  justify-content: flex-end;
}

.header-widget {
  display: flex;
  align-items: center;
}

/* ヘッダーユーザー情報 */
.header-user-info {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
}

.current-user {
  font-size: 0.85rem;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

.current-role {
  font-size: 0.78rem;
  color: var(--color-accent-strong);
  background: rgba(168, 184, 232, 0.16);
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(168, 184, 232, 0.4);
}

.upgrade-button {
  padding: 4px 12px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  border: 1px solid var(--color-accent-border);
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  display: none;
}

.upgrade-button:hover {
  background: var(--color-accent-strong);
  border-color: var(--color-accent-strong);
}

.upgrade-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: var(--color-muted);
  border-color: var(--color-muted);
}

.logout-button {
  padding: 4px 12px;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.logout-button:hover {
  background: var(--color-target);
  border-color: var(--color-accent-text);
}

.theme-dark .message__actions {
  background: rgba(31, 31, 31, 0.95);
  border-color: rgba(255, 255, 255, 0.15);
}

.theme-dark .message__action-btn {
  color: var(--color-text);
}

.theme-dark .message__action-btn:hover {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
}

/* ダークテーマでのアクティブチャットスタイル */
.theme-dark .sidebar__menu-link--active {
  background: rgba(154, 166, 228, 0.15);
  color: var(--color-accent-text);
  border-radius: 8px;
}

@media (hover: hover) and (pointer: fine) {
  .theme-dark .sidebar__menu-link--active:hover {
    background: var(--color-target);
    color: var(--color-accent-strong);
  }
}

form {
  background: var(--color-surface);
  border-radius: var(--border-radius);
  border: 1px solid var(--color-border);
  padding: 22px 24px;
  margin: 14px 0;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow-soft);
  transition: all var(--animation-duration) ease;
}

.message-form-row {
  display: flex;
  gap: 12px;
  /* 行全体をフッター位置 (底辺) に固定する。 textarea が複数行に展開しても
     宛先選択ボックスと予約ボタンは底辺に張り付いたまま動かない。 textarea 内
     ボタン (送信 / 添付) は wrapper の align-items: center で textarea の中央軸
     追従を維持。 */
  align-items: flex-end;
  width: 100%;
}

.recipients-compact {
  position: relative;
  display: flex;
  min-width: 180px;
  max-width: 250px;
  min-height: 48px;
}

/* ===== 添付メディアの公開範囲表示 (メッセージ入力欄の上、添付があるときだけ) =====
   設計: docs/design/2026-08-01_visibility_inline_control_design.md 6-8
   添付プレビューの直上に出て、「今添付したものの話」だと説明なしで伝わる位置。
   メニューの基準にするため relative */
.chat-visibility-control {
  position: relative;
  margin-bottom: 4px;
  width: max-content;
}

.visibility-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted);
  font-size: 0.7rem;
  white-space: nowrap;
  cursor: pointer;
  border-radius: 10px;
}

.visibility-control:hover {
  color: var(--color-text);
}

/* 見られる人が限定されるときは色で気づきやすくする (装飾記号は使わない) */
.visibility-control--restricted .visibility-control__value {
  color: var(--color-accent-text);
  font-weight: 600;
}

.visibility-control__menu {
  position: absolute;
  left: 0;
  bottom: calc(100% + 4px);
  width: 280px;
  max-height: 380px;
  overflow-y: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  padding: 4px;
  z-index: 1000;
}

.visibility-control__item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  background: none;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  color: var(--color-text);
}

.visibility-control__item:hover {
  background: var(--color-bg);
}

.visibility-control__item--active {
  background: var(--color-bg);
}

.visibility-control__item-title {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
}

.visibility-control__item-detail {
  display: block;
  font-size: 0.7rem;
  color: var(--color-muted);
  margin-top: 2px;
}

.visibility-control__manual {
  padding: 8px;
}

/* 確定とキャンセルは物理的に離す (誤操作防止) */
.visibility-control__manual-actions {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
}

.visibility-control__manual-cancel,
.visibility-control__manual-apply {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.75rem;
  cursor: pointer;
}

.visibility-control__manual-apply {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  border-color: transparent;
}

.visibility-control__manual-note {
  font-size: 0.68rem;
  color: var(--color-muted);
  margin: 8px 0 0;
}

.recipients-compact-label {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--color-muted);
}

.message-input-container {
  flex: 1;
}

/* 参加者アイコン表示 */
.chat-participants {
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 1;
  margin-left: auto;
}

.chat-participants.hidden {
  display: none;
}

/* 丸のサイズも文字サイズに追従させる (rem)。 px 固定だと文字だけ大きくなって円からはみ出す */
.participant-avatar {
  width: 1.625rem;
  height: 1.625rem;
  border-radius: 50%;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid var(--color-surface);
  margin-left: -8px;
  position: relative;
}

.participant-avatar:first-child {
  margin-left: 0;
}

.participant-avatar:hover {
  transform: translateY(-2px);
  z-index: 10;
  opacity: 1;
}

.participant-avatar.self {
  border-color: var(--color-accent-text);
  box-shadow: 0 0 0 1px var(--color-accent-border);
}

.participant-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* 隣に並ぶ .participant-avatar と同寸で重ねる丸なので、サイズ指定も揃える */
.participant-count {
  width: 1.625rem;
  height: 1.625rem;
  border-radius: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 500;
  margin-left: -8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.participant-count:hover {
  background: var(--color-surface);
  transform: translateY(-2px);
}

/* ツールチップ */
.participant-avatar::after {
  content: attr(data-name);
  position: absolute;
  top: 110%;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.9);
  color: var(--color-button-text);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  margin-bottom: 4px;
}

.participant-avatar:hover::after {
  opacity: 1;
}

#message-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0 0 24px;
}

.admin-view-active #message-form {
  display: none !important;
}

label {
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--color-muted);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* 全 textarea でリサイズハンドルを無効化 (C-HUB はほぼすべての textarea で
   auto-resize or 固定サイズ運用、 ユーザー手動リサイズは UI 上意図しない挙動になる)。
   旧: ここに min-height: 60px / max-height: 150px もあったが、 chat の正規スタイルは
   下方の `.message-input-wrapper textarea` (ui.css 内別ブロック) で完結しており、
   グローバル制約は quick-memo / メディア説明 等で意図しない高さ制限の漏れを起こすため
   2026-05-12 撤去。 resize: none のみグローバル維持。 */
textarea {
  resize: none;
}

.message-input-wrapper {
  /* mention-suggestions の絶対配置基準として relative 必須 (chat-mention.ts が style.bottom/left を wrapper 基準で計算) */
  position: relative;
  display: flex;
  /* 全要素 (添付ボタン / textarea / 送信ボタン) を縦中央軸に揃える (1 行入力時は完全整列、 複数行入力時もボタンが textarea の中央に追従) */
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
  transition: border-color var(--animation-duration) ease;
  width: 100%;
  box-sizing: border-box;
}

.message-input-wrapper:focus-within {
  /* シンプルに border-color 変化のみ (二重 box-shadow を撤去、 アクセシビリティ用に色変化は残す) */
  border-color: var(--color-accent-strong);
}

/* チャット入力欄は wrapper:focus-within の border-color 変化で focus 表現するため、 textarea 本体は透明 */
.message-input-wrapper textarea:focus {
  border-color: transparent;
}

.message-input-wrapper.drag-over {
  border-color: var(--color-accent-strong);
  background: var(--color-target);
  box-shadow: 0 0 0 3px rgba(121, 134, 203, 0.2);
}

.message-input-wrapper textarea {
  flex: 1;
  border: none;
  background: transparent;
  resize: none;
  /* テキスト 1 行分 + 上下 padding を意味的に表現 (line-height 1.4em + padding 12*2) */
  padding: 12px 0;
  min-height: calc(1.4em + 24px);
  /* 入力欄の縦伸びを画面の 3 割までに抑え、メッセージ閲覧エリアを確保する (超過分は内部スクロール) */
  max-height: min(30vh, 240px);
  line-height: 1.4;
  outline: none;
  font-family: inherit;
  /* 物理 px に固定: ユーザーのブラウザ最小フォントサイズ変更で破綻しない */
  font-size: 14px;
  box-sizing: border-box;
  overflow-y: hidden;
  word-wrap: break-word;
  transition: none;
}

.message-input-wrapper textarea.textarea-scrollable {
  overflow-y: auto;
}

.send-button {
  /* flex 子: 右端配置 (wrapper の align-items: center で縦中央) */
  order: 1;
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--animation-duration) ease;
  opacity: 0.7;
}

.send-button:hover,
.send-button.active {
  opacity: 1;
  transform: scale(1.05);
  background: var(--color-accent-strong);
}

.send-button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
}

.send-schedule-btn {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-surface);
  color: var(--color-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  /* 親 .message-form-row の align-items: center で縦中央配置 (align-self / margin-bottom 撤去) */
  transition: all var(--animation-duration) ease;
  padding: 0;
  position: relative;
}

.send-schedule-btn:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border-color: var(--color-accent);
}

.send-schedule-badge {
  position: absolute;
  top: -6px;
  right: -8px;
  background: var(--color-accent, #a4b2dd);
  color: #fff;
  border-radius: 7px;
  min-width: 14px;
  height: 14px;
  font-size: 0.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  padding: 0 2px;
  cursor: pointer;
  line-height: 1;
}

/* 予約送信モーダル */
.schedule-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.schedule-modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  width: 320px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.schedule-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px 12px;
  border-bottom: 1px solid var(--color-border);
}

.schedule-modal__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

.schedule-modal__close {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
  border-radius: 4px;
}

.schedule-modal__close:hover {
  color: var(--color-text);
  background: var(--color-bg-hover);
}

.schedule-modal__body {
  padding: 16px 20px;
}

.schedule-modal__label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.schedule-modal__input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.875rem;
  box-sizing: border-box;
}

.schedule-modal__input:focus {
  outline: none;
  border-color: var(--color-accent-text);
}

.schedule-modal__hint {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin: 8px 0 0;
}

.schedule-modal__footer {
  display: flex;
  gap: 8px;
  padding: 12px 20px 16px;
  justify-content: flex-end;
}

.schedule-modal__cancel {
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: none;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.schedule-modal__cancel:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

.schedule-modal__submit {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.schedule-modal__submit:hover {
  background: var(--color-accent-strong);
}

.schedule-modal__submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* アップロード進捗表示 */
.upload-progress-container {
  padding: 8px 12px;
  margin-bottom: 8px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  animation: slideDown 0.2s ease-out;
}

.upload-progress-container.hidden {
  display: none;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.upload-progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.upload-progress-text {
  font-size: 0.8rem;
  color: var(--color-text);
  font-weight: 500;
}

.upload-progress-count {
  font-size: 0.75rem;
  color: var(--color-muted);
}

.upload-progress-bar {
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  overflow: hidden;
}

.upload-progress-fill {
  height: 100%;
  background: var(--color-accent-bg);
  border-radius: 2px;
  width: 0%;
  transition: width 0.3s ease;
}

.upload-progress-fill.uploading {
  animation: progressPulse 1.5s ease-in-out infinite;
}

@keyframes progressPulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

/* レスポンシブ対応 */

.helper-text {
  font-size: 0.74rem;
  color: var(--color-muted);
  margin: -2px 0 0;
}

/* ポップアップ共通スタイル */
.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10100;
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.popup-overlay.show {
  display: flex;
}

.popup-content {
  background: var(--color-surface);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  animation: popupFadeIn 0.2s ease-out;
}

/* ポップアップ幅バリエーション */
.popup-content--small {
  width: 420px;
  max-width: 95vw;
}

.popup-content--medium {
  width: 560px;
  max-width: 95vw;
}

.popup-content--large {
  width: 640px;
  max-width: 95vw;
}

.popup-content--900 {
  width: 900px;
  max-width: 95vw;
  max-height: 90vh;
}

/* ポップアップフッター */
.popup-footer--between {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border-top: 1px solid var(--color-border);
}

/* ポップアップボディレイアウト */
.popup-body--grid {
  display: grid;
  gap: 16px;
}

/* 使い方ガイドセクション */
.usage-section-title {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--color-text);
}

.usage-section-list {
  margin: 0;
  padding-left: 1.2em;
  color: var(--color-text);
  font-size: 0.9rem;
  line-height: 1.6;
}

.usage-section-text {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* キーボードショートカット表示 */
.kbd-key {
  padding: 2px 4px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

/* ポップアップ幅バリエーション（追加） */
.popup-content--480 {
  width: 480px;
  max-width: 95vw;
}

.popup-content--500 {
  max-width: 500px;
}

.popup-content--540 {
  width: 540px;
  max-width: 95vw;
}

.popup-content--narrow-vw {
  max-width: 90vw;
}

/* ポップアップボディ最小高さ */
.popup-body--min-200 {
  min-height: 200px;
}

/* ユーティリティ: マージン */
.mt-8 {
  margin-top: 8px;
}

.mb-8 {
  margin-bottom: 8px;
}

.mb-24 {
  margin-bottom: 24px;
}

.mt-24 {
  margin-top: 1.5rem;
}

/* 汎用ビュータイトル */
.view-title {
  margin: 0;
  font-size: 1.3rem;
  color: var(--color-text);
}

/* プログレステキスト */
.progress-text {
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

/* ポップアップ説明文 */
.popup-desc {
  margin: 0 0 16px 0;
  color: var(--color-text);
  line-height: 1.6;
}

.popup-desc--secondary {
  margin: 0 0 20px 0;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ポップアップ情報カード */
.popup-info-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 20px;
}

.popup-info-card--scrollable {
  max-height: 300px;
  overflow-y: auto;
}

/* ポップアップ情報リスト */
.popup-info-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.popup-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.popup-info-label {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.popup-info-value {
  font-weight: 600;
  color: var(--color-text);
}

.popup-info-value--mono {
  font-family: monospace;
  font-weight: 500;
  color: var(--color-text);
}

.popup-info-value--accent {
  font-family: monospace;
  font-weight: 600;
  color: var(--color-accent);
}

/* ポップアップ区切り線 */
.popup-divider {
  height: 1px;
  background: var(--color-border);
}

/* ポップアップ注意文 */
.popup-warning {
  margin: 0 0 20px 0;
  color: var(--color-warning);
  font-size: 0.85rem;
  line-height: 1.5;
  padding: 12px;
  background: var(--color-surface);
  border: 1px solid rgba(var(--color-warning-rgb, 255, 193, 7), 0.5);
  border-radius: 4px;
}

/* ポップアップアクションボタン群 */
.popup-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.popup-actions--mt {
  margin-top: 8px;
}

/* ポップアップフォーム */
.popup-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.popup-form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.popup-form-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
}

.popup-form-required {
  color: var(--color-danger);
}

.popup-form-input {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.9rem;
}

.popup-form-input--lg {
  padding: 12px 16px;
  border-width: 2px;
  border-radius: 8px;
  transition: border-color 0.2s ease;
}

.popup-form-hint {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.popup-form-hint--notice {
  margin: 8px 0 0 0;
  color: var(--color-muted);
  font-size: 0.8rem;
}

/* ポップアップ却下理由 */
.popup-reject-container {
  margin-bottom: 20px;
}

.popup-reject-label {
  display: block;
  margin-bottom: 8px;
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
}

.popup-reject-textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.9rem;
  resize: vertical;
}

/* アクティビティログモーダル */
.popup-container--logs {
  max-width: 1200px;
  max-height: 90vh;
}

.popup-body--column {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.log-filters {
  display: flex;
  gap: 12px;
  padding: 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  flex-wrap: wrap;
  align-items: flex-end;
}

.log-filter-group {
  flex: 1;
  min-width: 150px;
}

.log-filter-label {
  display: block;
  margin-bottom: 4px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.log-filter-input {
  width: 100%;
  height: 36px;
  padding: 0 8px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.9rem;
  box-sizing: border-box;
}

.log-filter-reset {
  height: 36px;
  padding: 0 16px;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
  white-space: nowrap;
  box-sizing: border-box;
}

.log-results {
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  padding: 4px;
}

.log-pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.log-page-btn {
  padding: 6px 16px;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
}

.log-page-btn:disabled {
  opacity: 0.5;
}

.log-page-info {
  color: var(--color-text);
  font-size: 0.9rem;
}

/* 汎用非表示クラス */
.hidden {
  display: none;
}

@keyframes popupFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }

  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* 画像ポップアップのオーバーレイ */
.image-popup-overlay {
  background: rgba(0, 0, 0, 0.9);
  z-index: 10200;
}

/* 画像ポップアップの中身は PDF と共通の .preview-popup-* を使う (方式統一 2026-07-17) */

.preview-popup-body--image {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #202129;
}

#popup-image {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

.preview-popup-action--danger:hover {
  background: var(--color-danger);
  color: #fff;
}

/* PDFプレビューモーダル */
#pdf-popup {
  z-index: 10200;
  background: rgba(0, 0, 0, 0.9);
}

.preview-popup-content {
  width: min(90vw, 1200px);
  height: 90vh;
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  overflow: hidden;
}

.preview-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.preview-popup-filename {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  margin-right: 12px;
}

.preview-popup-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.preview-popup-action {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 4px;
  font-size: 1.2rem;
  transition:
    color 0.15s,
    background 0.15s;
}

.preview-popup-action:hover {
  color: var(--color-text);
  background: var(--color-hover);
}

/* 即時ツールチップ: アイコンだけでは伝わりにくいので、乗せた瞬間 (+ キーボードフォーカス時) に
   aria-label をそのまま下に出す。ブラウザ標準 title の表示遅延を待たせない */
.preview-popup-action {
  position: relative;
}

.preview-popup-action::after {
  content: attr(aria-label);
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  /* ツールチップはライト/ダーク共通の濃色。ダークテーマで背景に沈まないよう薄い縁取り付き */
  background: rgba(28, 29, 36, 0.92);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 0.72rem;
  line-height: 1;
  padding: 5px 8px;
  border-radius: 4px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(-2px);
  transition:
    opacity 0.1s,
    transform 0.1s;
  z-index: 10;
}

.preview-popup-action:hover::after,
.preview-popup-action:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}

.preview-popup-body {
  flex: 1;
  position: relative;
  min-height: 0;
}

.preview-popup-iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* テキスト系: ミニプレビュー (.media-preview-text) と同じ読み味に揃える */
.preview-popup-text {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 16px 20px;
  overflow: auto;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  text-align: left;
}

.preview-popup-video {
  width: 100%;
  height: 100%;
  /* 動画の縦横比を保ったまま枠に収める (黒帯は video 側の背景) */
  object-fit: contain;
  background: #000;
  display: block;
}

.preview-popup-audio {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--color-surface);
}

.preview-popup-audio-player {
  width: min(100%, 520px);
}

/* 音声はプレイヤー 1 本だけなので、画面いっぱいに広げると余白ばかりになる */
#pdf-popup[data-preview-kind='audio'] .preview-popup-content,
#pdf-popup[data-preview-kind='audio'] .preview-popup-audio {
  height: auto;
}

.preview-popup-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  background: var(--color-surface);
}

/* 読み込みに失敗したときは回転を止めてメッセージだけ残す */
.preview-popup-loading--error .preview-popup-spinner {
  display: none;
}

.preview-popup-spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: preview-popup-spin 0.8s linear infinite;
}

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

/* オーバーレイアイコンボタン（共通） */
.btn-icon--overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: rgba(0, 0, 0, 0.6);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  color: var(--color-button-text);
  transition: all 0.2s ease;
  backdrop-filter: blur(4px);
}

.btn-icon--overlay:hover {
  background: rgba(0, 0, 0, 0.8);
  transform: scale(1.05);
}

.btn-icon--overlay svg {
  width: 20px;
  height: 20px;
}

/* 削除ボタン */
.btn-icon--overlay-delete {
  color: #c77474;
}

.btn-icon--overlay-delete:hover {
  background: #c77474;
  color: var(--color-button-text);
}

/* ダウンロードボタン */
.btn-icon--overlay-download {
  color: var(--color-button-text);
}

.btn-icon--overlay-download:hover {
  background: var(--color-accent-bg);
}

/* 編集モーダルのフッターアクション */
.popup-footer-actions {
  display: flex;
  gap: 8px;
}

.popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px 16px 24px;
  border-bottom: 1px solid var(--color-border);
}

.popup-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  flex: 1;
}

.popup-header-actions {
  display: flex;
  gap: 8px;
  margin-right: 12px;
}

.popup-action-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.popup-action-btn:hover {
  background: var(--color-target);
  border-color: var(--color-accent);
  color: var(--color-accent-text);
}

.popup-action-btn--danger:hover {
  background: var(--color-danger-bg);
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.popup-action-btn svg {
  width: 18px;
  height: 18px;
}

.popup-close {
  background: transparent;
  border: none;
  color: var(--color-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.popup-close:hover {
  background: var(--color-target);
  color: var(--color-text);
}

/* 確認ダイアログボタン */
.confirm-button {
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  min-width: 80px;
}

.confirm-button--cancel {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.confirm-button--cancel:hover {
  background: var(--color-target);
  border-color: var(--color-accent-text);
  transform: translateY(-1px);
}

.confirm-button--ok {
  background: #9aa6e4;
  color: var(--color-button-text);
}

.confirm-button--ok:hover {
  background: #8090d0;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(154, 166, 228, 0.4);
}

.confirm-button--ok.warning {
  background: var(--color-status-warn);
}

.confirm-button--ok.warning:hover {
  background: #d68910;
  box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.confirm-button--danger {
  background: var(--color-danger);
  color: var(--color-button-text);
}

.confirm-button--danger:hover {
  opacity: 0.85;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(231, 76, 60, 0.4);
}

.popup-body {
  padding: 20px;
}

/* メンバー追加方法選択 */
.add-member-choice-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.add-member-choice-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  cursor: pointer;
  transition: all var(--animation-duration) ease;
  text-align: left;
  width: 100%;
}

.add-member-choice-btn:hover {
  border-color: var(--color-accent);
  background: var(--color-target);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.add-member-choice-btn svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  stroke: var(--color-accent);
}

.add-member-choice-content {
  flex: 1;
}

.add-member-choice-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.add-member-choice-desc {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* メンバー追加モーダル */
.add-member-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
}

/* 検索ボックス */
.add-member-search input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  font-size: 0.95rem;
  color: var(--color-text);
  transition: all var(--animation-duration) ease;
}

.add-member-search input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(121, 134, 203, 0.1);
}

.add-member-search input::placeholder {
  color: var(--color-muted);
}

/* 選択済みエリア */
.add-member-selected-area {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-bg);
  overflow: hidden;
}

.add-member-selected-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.add-member-selected-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.add-member-selected-count {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-bg);
  padding: 2px 8px;
  border-radius: 12px;
}

.add-member-selected-list {
  padding: 12px;
  min-height: 60px;
  max-height: 120px;
  overflow-y: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-content: flex-start;
}

.add-member-empty-state {
  width: 100%;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
  padding: 12px;
}

.add-member-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  border-radius: 16px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--animation-duration) ease;
  cursor: pointer;
  user-select: none;
}

.add-member-tag:hover {
  background: var(--color-accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.add-member-tag-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  font-size: 0.75rem;
  line-height: 1;
  transition: background var(--animation-duration) ease;
}

.add-member-tag-remove:hover {
  background: rgba(255, 255, 255, 0.4);
}

/* 候補リスト */
.add-member-candidates {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  background: var(--color-surface);
  overflow: hidden;
}

.add-member-candidates-header {
  padding: 10px 14px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.add-member-candidates-list {
  min-height: 280px;
  max-height: 280px;
  overflow-y: auto;
}

.add-member-loading {
  padding: 20px;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.add-member-candidate-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  transition: all var(--animation-duration) ease;
  user-select: none;
}

.add-member-candidate-item:last-child {
  border-bottom: none;
}

.add-member-candidate-item:hover {
  background: var(--color-target);
}

.add-member-candidate-item.selected {
  background: var(--color-accent-bg);
}

.add-member-candidate-avatar {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 600;
  flex-shrink: 0;
  transition: all var(--animation-duration) ease;
}

.add-member-candidate-item.selected .add-member-candidate-avatar {
  box-shadow: 0 0 0 3px var(--color-accent);
}

.add-member-candidate-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.add-member-candidate-info {
  flex: 1;
  min-width: 0;
}

.add-member-candidate-name {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 2px;
}

.add-member-candidate-username {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.add-member-no-results {
  padding: 32px 20px;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
}

/* 送信者・宛先共通スタイル */
.sender-input,
.recipients-input {
  position: relative;
  min-height: 48px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 8px 12px;
  background: var(--color-surface);
  display: flex;
  flex-direction: row;
  gap: 4px;
  transition: border-color var(--animation-duration) ease;
  overflow-y: auto;
  align-items: center;
}

.recipients-compact .recipients-input {
  flex: 1;
  min-height: 0;
  flex-direction: column;
  align-items: stretch;
}

.sender-input input {
  border: none;
  background: transparent;
  font-size: 0.85rem;
  color: var(--color-text);
  outline: none;
  width: 100%;
  height: 22px;
}

.recipients-input:focus-within {
  border-color: var(--color-accent-strong);
  box-shadow: 0 0 0 3px rgba(121, 134, 203, 0.1);
}

.recipients-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  min-height: 0;
  align-items: center;
  flex-shrink: 0;
}

.recipients-chips.has-chips {
  margin-bottom: 4px;
}

.recipient-chip {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  padding: 2px 6px 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  animation: chipSlide 0.2s ease;
  white-space: nowrap;
  flex-shrink: 0;
  height: 22px;
}

@keyframes chipSlide {
  from {
    transform: scale(0.8);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

.recipient-chip .remove-btn {
  background: rgba(255, 255, 255, 0.3);
  border: none;
  border-radius: 50%;
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.625rem;
  transition: background var(--animation-duration) ease;
}

.recipient-chip .remove-btn:hover {
  background: rgba(255, 255, 255, 0.5);
}

.recipient-chip--team {
  background: var(--color-accent-secondary, #6366f1);
}

.recipients-input input {
  border: none;
  background: transparent;
  font-size: 0.85rem;
  color: var(--color-text);
  outline: none;
  width: 100%;
  height: 22px;
}

.recipients-suggestions {
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  z-index: 1000;
  max-height: 200px;
  overflow-y: auto;
  margin-bottom: 4px;
}

.recipients-suggestions.hidden {
  display: none;
}

.suggestion {
  padding: 10px 12px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background var(--animation-duration) ease;
}

.suggestion:hover {
  background: var(--color-target);
}

.suggestion.selected {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
}

.suggestion--active {
  background: var(--color-target);
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.suggestion--team {
  font-weight: 500;
}

.suggestion-divider {
  padding: 6px 12px 4px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  pointer-events: none;
  user-select: none;
}

.mention-suggestions {
  position: absolute;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-soft);
  z-index: 1000;
  max-height: 200px;
  overflow-y: auto;
  min-width: 180px;
  max-width: 250px;
}

.mention-suggestions.hidden {
  display: none;
}

.mention-suggestions .suggestion {
  padding: 8px 12px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background var(--animation-duration) ease;
  border-bottom: 1px solid var(--color-border);
}

.mention-suggestions .suggestion:last-child {
  border-bottom: none;
}

.mention-suggestions .suggestion:hover {
  background: var(--color-target);
}

.mention-suggestions .suggestion.selected {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
}

.theme-toggle {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.theme-toggle button {
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 6px 12px;
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.8rem;
  transition:
    border 0.2s ease,
    background 0.2s ease;
}

.theme-toggle button:hover {
  border-color: var(--color-accent-strong);
  background: rgba(181, 192, 245, 0.14);
}

/* ===== 3エリア構成のスタイル（ChatGPT風） ===== */
.sidebar__content {
  display: flex;
  flex-direction: column;
  height: 100%;
}

/* 上部固定エリア */
.sidebar__section--fixed-top {
  flex-shrink: 0;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}

.sidebar__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar__action-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: none;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
  width: 100%;
}

.sidebar__action-btn--primary {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
}

.sidebar__action-btn--primary:hover {
  background: var(--color-accent-strong);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.sidebar__action-btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.sidebar__action-btn--secondary:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-accent-text);
  color: var(--color-accent-text);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.sidebar__action-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* 中央スクロールエリア */
.sidebar__section--scrollable {
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.sidebar__section--scrollable .sidebar__menu {
  overflow-y: auto;
  flex: 1;
  padding-right: 4px;
  margin-right: -4px;
}

/* カスタムスクロールバー */
.sidebar__section--scrollable .sidebar__menu::-webkit-scrollbar {
  width: 6px;
}

.sidebar__section--scrollable .sidebar__menu::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar__section--scrollable .sidebar__menu::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}

.sidebar__section--scrollable .sidebar__menu::-webkit-scrollbar-thumb:hover {
  background: var(--color-muted);
}

/* 下部固定エリア */
.sidebar__section--fixed-bottom {
  flex-shrink: 0;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.sidebar__section--fixed-bottom .sidebar__section-title {
  margin-bottom: 8px;
}

/* チャット一覧の改善 */
.chat-item-container {
  position: relative;
  border-radius: 8px;
  transition: all 0.2s ease;
}

@media (hover: hover) and (pointer: fine) {
  .chat-item-container:hover {
    background: var(--color-surface-alt);
  }
}

.chat-item-container .sidebar__menu-link {
  margin-right: 0;
  border-radius: 8px;
  transition: all 0.2s ease;
}

/* より洗練されたホバーエフェクト */
.sidebar__menu-link {
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid transparent;
}

@media (hover: hover) and (pointer: fine) {
  .sidebar__menu-link:hover {
    background: var(--color-surface-alt);
    border-color: var(--color-border);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  }
}

.sidebar__footer {
  padding: 16px;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.sidebar__footer .theme-toggle {
  margin: 0;
  justify-content: center;
}

.admin-panel,
.profile-panel,
.dashboard-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 32px 40px 64px;
  box-shadow: var(--shadow-soft);
  margin-bottom: 20px;
}

.admin-users-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
}

.admin-users-table th,
.admin-users-table td {
  border: 1px solid var(--color-border);
  padding: 8px 12px;
  text-align: left;
}

.admin-users-table th {
  background: rgba(168, 184, 232, 0.12);
  color: var(--color-muted);
  font-weight: 600;
}

.admin-user-avatar {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-secondary, rgba(255, 255, 255, 0.08));
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-muted);
}

.admin-user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.admin-user-avatar:hover {
  opacity: 0.8;
  box-shadow: 0 0 0 2px var(--color-accent);
}

.admin-users-table td select {
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.75rem;
}

.admin-action-button {
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.admin-action-button:hover {
  border-color: var(--color-accent-text);
  color: var(--color-accent-strong);
}

/* Primary: アクセント系（パスワード変更など） */
.admin-action-button--primary {
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  border-color: var(--color-accent-text);
}

.admin-action-button--primary:hover {
  background: var(--color-accent-strong);
  border-color: var(--color-accent-strong);
}

/* Success: 成功系（承認など） */
.admin-action-button--success {
  background: var(--color-status-ok);
  color: var(--color-button-text);
  border-color: var(--color-status-ok);
}

.admin-action-button--success:hover {
  background: var(--color-status-ok);
  opacity: 0.9;
}

/* Warning: 警告系（復元など） */
.admin-action-button--warning {
  background: var(--color-status-warn);
  color: var(--color-button-text);
  border-color: var(--color-status-warn);
}

.admin-action-button--warning:hover {
  background: var(--color-status-warn);
  opacity: 0.9;
}

/* Danger: 削除系 */
.admin-action-button--danger {
  background: var(--color-status-error);
  color: var(--color-button-text);
  border-color: var(--color-status-error);
}

.admin-action-button--danger:hover {
  background: var(--color-status-error);
  opacity: 0.9;
}

/* 完全削除ボタン: 小さく控えめ */
.admin-action-button--permanent-delete {
  background: transparent;
  color: var(--color-status-error);
  border: 1px solid var(--color-status-error);
  font-size: 0.7rem;
  padding: 2px 6px;
  opacity: 0.7;
}

.admin-action-button--permanent-delete:hover {
  background: var(--color-status-error);
  color: var(--color-button-text);
  opacity: 1;
}

/* 無効化済みユーザー行 */
.admin-users-row--deactivated td {
  opacity: 0.5;
}

/*
 * ユーザー一覧テーブルのコンテナ基準レスポンシブ
 * ビューポートではなく「実際の表示幅」を見るため、サイドパネル(FAB)展開で
 * メインが狭まった状態も正しく捉えられる。狭いときは情報を隠さず、各行を
 * カード型に組み替えて全項目を縦に並べる(横スクロールも回避)。
 * カードのラベル(項目名)は各 td の data-label 属性から表示(位置非依存)。
 */
#admin-users-container {
  container-type: inline-size;
}

@container (max-width: 900px) {
  #admin-users-container .admin-users-table thead {
    display: none;
  }

  #admin-users-container .admin-users-table tr {
    display: block;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: 12px;
    padding: 10px 14px;
  }

  #admin-users-container .admin-users-table td {
    display: flex;
    align-items: center;
    gap: 8px;
    border: none;
    border-bottom: 1px solid var(--color-border);
    padding: 6px 0;
  }

  #admin-users-container .admin-users-table td[data-label]::before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--color-muted);
    min-width: 92px;
    flex-shrink: 0;
  }

  /* 先頭=アイコン列、末尾=操作列はラベルなし。位置番号でなく端で指定 */
  #admin-users-container .admin-users-table td:first-child {
    border-bottom: none;
  }
  #admin-users-container .admin-users-table tr td:last-child {
    display: block;
    border-bottom: none;
    padding-top: 10px;
  }

  #admin-users-container .admin-users-table td:last-child .admin-button-container--actions {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-start;
  }
}

.admin-users-row--deactivated td:last-child {
  opacity: 1;
}

/* 無効化済みバッジ */
.admin-deactivated-badge {
  display: inline-block;
  font-size: 0.65rem;
  color: var(--color-muted);
  background: var(--color-surface-alt);
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}

/* 管理画面トグルコンテナ（既存 .toggle-switch コンポーネントを使用） */
.admin-toggle-container {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.admin-toggle-text {
  font-size: 0.8rem;
  color: var(--color-muted);
}

/* モーダル警告テキスト */
.modal-warning {
  background: rgba(220, 53, 69, 0.15);
  color: var(--color-status-error);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

/* テーブルセルのスタイル */
.admin-table-cell--monospace {
  font-family: monospace;
  font-size: 0.85rem;
}

.admin-table-cell--monospace-large {
  font-family: monospace;
}

/* テーブルセル内コンテナ */
.admin-table-cell-container {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* ID表示（プライマリ） */
.admin-table-text--id-primary {
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 500;
}

/* ID表示（セカンダリ） */
.admin-table-text--id-secondary {
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* ID表示（通常） */
.admin-table-text--id {
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* 表示名（プライマリ） */
.admin-table-text--name-primary {
  font-weight: 500;
  color: var(--color-text);
}

/* 表示名（セカンダリ） */
.admin-table-text--name-secondary {
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* 表示名（通常） */
.admin-table-text--name {
  font-weight: 500;
}

/* バッジコンテナ */
.admin-badge-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 詳細テキスト */
.admin-table-text--details {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-top: 2px;
}

/* 期限切れテキスト */
.admin-table-text--expired {
  color: var(--color-status-error);
}

/* ステータステキスト */
.admin-table-text--status-valid {
  color: var(--color-status-ok);
}

.admin-table-text--status-disabled {
  color: var(--color-muted);
}

.admin-table-text--status-expired {
  color: var(--color-status-error);
}

.admin-table-text--status-used {
  color: var(--color-status-warn);
}

/* ステータスバッジ */
.admin-status-badge {
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
  color: white;
}

.admin-status-badge--success {
  background: var(--color-status-ok);
}

.admin-status-badge--failure {
  background: var(--color-status-off);
}

/* ページネーション */
.admin-pagination-button {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--animation-duration) ease;
}

.admin-pagination-button:hover {
  background: var(--color-hover);
}

.admin-pagination-info {
  padding: 6px 12px;
  color: var(--color-text);
  font-size: 0.85rem;
}

/* ボタンコンテナ */
.admin-button-container {
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

/* ボタンコンテナ（操作列用） */
.admin-button-container--actions {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}

/* 空メッセージ */
.admin-empty-message {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* モーダル共通スタイル */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.modal-container {
  background: var(--color-surface);
  border-radius: 12px;
  padding: 24px;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.modal-container--wide {
  max-width: 500px;
}

.modal-title {
  margin: 0 0 12px 0;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
}

.modal-title--spaced {
  margin-bottom: 16px;
}

.modal-message {
  margin: 0 0 20px 0;
  font-size: 0.9rem;
  color: var(--color-muted);
  line-height: 1.5;
}

.modal-message--compact {
  margin-bottom: 16px;
}

.modal-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.95rem;
  background: var(--color-bg);
  color: var(--color-text);
  margin-bottom: 20px;
  box-sizing: border-box;
}

.modal-button-container {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.modal-button--primary {
  padding: 8px 16px;
  border: 1px solid var(--color-accent-border);
  border-radius: 6px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: opacity var(--animation-duration) ease;
}

.modal-button--primary:hover {
  opacity: 0.9;
}

.modal-button--secondary {
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  font-size: 0.9rem;
  transition: background var(--animation-duration) ease;
}

.modal-button--secondary:hover {
  background: var(--color-hover);
}

.modal-button--danger {
  background: var(--color-danger);
}

.modal-button--danger:hover {
  opacity: 0.85;
}

.modal-warning-box {
  padding: 12px;
  background: rgba(220, 38, 38, 0.1);
  border: 1px solid rgba(220, 38, 38, 0.3);
  border-radius: 6px;
  margin-bottom: 16px;
}

.modal-warning-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: rgb(220, 38, 38);
  margin-bottom: 8px;
}

.modal-warning-text {
  font-size: 0.85rem;
  color: var(--color-text);
  line-height: 1.4;
}

.modal-info-container {
  margin-bottom: 12px;
}

.modal-info-container--spaced {
  margin-bottom: 20px;
}

.modal-info-label {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 4px;
}

.modal-info-box {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

.modal-info-text {
  flex: 1;
  font-family: monospace;
  font-size: 0.95rem;
  color: var(--color-text);
}

.modal-info-text--bold {
  font-weight: 600;
}

.modal-copy-button {
  padding: 6px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  transition: background var(--animation-duration) ease;
}

.modal-copy-button:hover {
  background: var(--color-hover);
}

/* Backup info text */
.modal-backup-info {
  margin: 0 0 20px 0;
  font-size: 0.85rem;
  color: var(--color-muted);
  font-family: monospace;
}

/* Server restart message screen */
.restart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
}

.restart-container {
  max-width: 600px;
  padding: 40px;
  text-align: center;
}

.restart-icon {
  margin-bottom: 24px;
}

.restart-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 16px 0;
}

.restart-message {
  font-size: 1.1rem;
  color: var(--color-muted);
  line-height: 1.6;
  margin: 0 0 24px 0;
}

.restart-instructions {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 20px;
  text-align: left;
  margin-bottom: 24px;
}

.restart-instructions-label {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.restart-instructions-code {
  background: var(--color-bg);
  padding: 12px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.95rem;
  color: var(--color-text);
}

.restart-note {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.admin-upgrade-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(248, 113, 113, 0.16);
  color: var(--color-status-error);
  font-size: 0.75rem;
  font-weight: 600;
  gap: 4px;
}

#new-user-password {
  width: 100%;
}

/* 管理画面共通スタイル */
.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.admin-title {
  margin: 0;
  font-size: 1.1rem;
  color: var(--color-text);
}

.admin-subtitle {
  margin: 0 0 16px 0;
  font-size: 1rem;
  color: var(--color-text);
}

.admin-btn-primary {
  padding: 6px 12px;
  border: 1px solid var(--color-accent-border);
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

.admin-btn-secondary {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
}

.admin-btn-group {
  display: flex;
  gap: 8px;
}

.admin-pagination {
  display: flex;
  justify-content: center;
  margin-top: 16px;
  gap: 8px;
}

/* アクティビティアイテムのホバー効果 */
.activity-item-clickable:hover {
  background: var(--color-target);
  border-radius: 8px;
}

.activity-item {
  padding: 8px;
  margin: -8px;
  border-radius: 8px;
  transition: background 0.15s ease;
}

/* ===== ナレッジベース ===== */
#knowledge-view {
  display: none;
}

.knowledge-panel {
  padding: 24px;
}

.knowledge-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.knowledge-header > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.knowledge-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.knowledge-subtitle {
  font-size: 0.8125rem;
  margin: 0;
  color: var(--color-muted);
}

.knowledge-btn-primary {
  padding: 10px 16px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  border: none;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease;
}

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

.knowledge-search-bar {
  margin-bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

input[type='text'].knowledge-search-input {
  flex: 1;
  padding: 8.5px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-size: 0.875rem;
  box-sizing: border-box;
  transition: border-color 0.15s ease;
}

input[type='text'].knowledge-search-input:focus {
  outline: none;
  border-color: var(--color-accent-text);
}

.knowledge-type-select {
  padding: 12px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-size: 0.75rem;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.knowledge-type-select:focus {
  outline: none;
  border-color: var(--color-accent-text);
}

.knowledge-sort-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.knowledge-sort-btn:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-accent-text);
}

/* プラグイン用の汎用クラス - プラグインがカスタムスタイルを追加できる */

.knowledge-sort-btn svg {
  width: 20px;
  height: 20px;
  transition: transform 0.2s ease;
}

.knowledge-sort-btn[data-order='asc'] svg {
  transform: rotate(180deg);
}

/* 検索バー内のタグ絞り込み箱 (select-search) を検索欄・種類セレクトと揃える */
.knowledge-tag-filter {
  flex-shrink: 0;
}

.knowledge-tag-filter .select-search__trigger {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.75rem;
}

/* 絞り込み中チップの行（検索バーとリストの間、空なら共通CSSで非表示） */
.knowledge-active-filters {
  margin: -8px 0 16px;
}

/* メディアライブラリのソートボタン */
.media-sort-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.media-sort-btn:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-accent-text);
}

.media-sort-btn svg {
  width: 20px;
  height: 20px;
  transition: transform 0.2s ease;
}

.media-sort-btn[data-order='asc'] svg {
  transform: rotate(180deg);
}

.knowledge-tag-small {
  padding: 2px 8px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  font-size: 0.6875rem;
  color: var(--color-text-secondary);
}

.knowledge-tag-more {
  background: var(--color-surface);
  color: var(--color-accent-text);
  font-weight: 600;
}

.knowledge-list,
#knowledge-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.knowledge-list-empty {
  grid-column: 1 / -1;
  padding: 40px 20px;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.875rem;
}

.knowledge-item {
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: var(--shadow-soft);
}

.knowledge-item:hover {
  border-color: var(--color-accent-text);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.knowledge-item-header {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 8px;
}

/* 文字サイズに追従させる。 px 固定だと行の高さとの比率が崩れてアイコンだけ枠から出る */
.knowledge-item-icon {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  margin-top: 2px;
  color: var(--color-accent-text);
  opacity: 0.7;
}

/* svg は既定で inline 扱いのため、 ベースライン下の余白ぶんだけ枠から下にずれる。
   文字が大きいほどずれ幅も広がるので block にして基準を揃える */
.knowledge-item-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.knowledge-item-title {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
}

.knowledge-draft-badge {
  display: inline-block;
  vertical-align: middle;
  padding: 2px 8px;
  margin-left: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-muted);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  flex-shrink: 0;
}

.knowledge-private-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  padding: 3px;
  margin-left: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-accent-muted, var(--color-border));
  border-radius: 4px;
  flex-shrink: 0;
}

.knowledge-private-badge svg {
  flex-shrink: 0;
}

.knowledge-team-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
  padding: 3px;
  margin-left: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-accent-muted, var(--color-border));
  border-radius: 4px;
  flex-shrink: 0;
}

.knowledge-team-badge svg {
  flex-shrink: 0;
  margin-right: 3px;
}

.knowledge-shared-teams-group {
  align-items: flex-start;
  flex-wrap: wrap;
}

.knowledge-shared-teams-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  flex: 1 1 100%;
  margin-top: 2px;
}

.knowledge-shared-team-item {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--color-text);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  white-space: nowrap;
  line-height: 1.4;
}

.knowledge-shared-team-item:hover {
  background: var(--color-surface-alt);
}

.knowledge-shared-team-item input[type='checkbox'] {
  margin: 0;
  flex-shrink: 0;
}

.knowledge-shared-teams-hint {
  font-size: 0.8rem;
  color: var(--color-muted);
}

.knowledge-item-preview {
  font-size: 0.85rem;
  /* 本文は文字サイズ設定に連動させる (標準 = 1.5 で従来どおり) */
  line-height: var(--line-height-normal, 1.5);
  color: var(--color-muted);
  margin-bottom: 8px;
  display: -webkit-box;
  line-clamp: 2;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.knowledge-item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}

.knowledge-item-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.75rem;
  color: var(--color-muted);
}

.knowledge-meta-icon {
  display: inline-flex;
  align-items: center;
  width: 12px;
  height: 12px;
  margin-right: 4px;
}

.knowledge-meta-icon svg {
  width: 100%;
  height: 100%;
}

/* ナレッジ詳細ビュー */
.knowledge-detail-view {
  position: fixed;
  top: 0;
  left: 300px;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 100;
  overflow: hidden;
}

.knowledge-detail-container {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.knowledge-detail-header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 32px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

.knowledge-detail-back-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: transparent;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.knowledge-detail-back-btn svg {
  width: 18px;
  height: 18px;
}

.knowledge-detail-back-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-accent-text);
}

.knowledge-detail-title {
  flex: 1;
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
}

.knowledge-detail-actions {
  display: flex;
  gap: 12px;
}

.knowledge-detail-edit-btn {
  padding: 10px 16px !important;
  border: 1px solid var(--color-border) !important;
  border-radius: 8px !important;
  background: transparent !important;
  color: var(--color-text) !important;
  font-size: 0.95rem !important;
  font-weight: 500 !important;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: none !important;
}

.knowledge-detail-edit-btn:hover {
  background: var(--color-surface) !important;
  border-color: var(--color-accent-text) !important;
}

.knowledge-detail-save-btn {
  padding: 10px 24px;
  border: none;
  border-radius: 8px;
  background: var(--color-accent-bg);
  color: var(--color-button-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(154, 166, 228, 0.3);
  margin-right: 16px;
}

.knowledge-detail-save-btn:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 12px rgba(154, 166, 228, 0.4);
  transform: translateY(-1px);
}

.knowledge-detail-draft-btn {
  padding: 10px 20px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-right: 12px;
}

.knowledge-detail-draft-btn:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-accent);
}

.knowledge-detail-cancel-btn {
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: transparent;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.knowledge-detail-cancel-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-accent-text);
}

.knowledge-detail-delete-btn {
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: transparent;
  color: var(--color-error);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-right: 16px;
}

.knowledge-detail-delete-btn:hover {
  background: var(--color-error);
  color: var(--color-button-text);
  border-color: var(--color-error);
}

.knowledge-detail-link-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: transparent;
  color: var(--color-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-right: 8px;
}

.knowledge-detail-link-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-accent-text);
  color: var(--color-accent-text);
}

.knowledge-detail-link-btn.copied {
  background: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-button-text);
}

.knowledge-detail-body {
  flex: 1;
  display: flex;
  justify-content: center;
  overflow-y: auto;
  background: var(--color-bg);
  padding: 48px 24px 80px;
}

.knowledge-detail-main {
  width: 100%;
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.knowledge-detail-meta {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.knowledge-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.knowledge-detail-content {
  line-height: 1.8;
  color: var(--color-text);
}

/* 詳細ページ内のMarkdownコンテンツスタイル */
.knowledge-detail-content h2,
.knowledge-detail-content h3,
.knowledge-detail-content h4 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  font-weight: 600;
  color: var(--color-text);
}

.knowledge-detail-content h2 {
  font-size: 1.5rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.3em;
}

.knowledge-detail-content h3 {
  font-size: 1.25rem;
}

.knowledge-detail-content h4 {
  font-size: 1.1rem;
}

.knowledge-detail-content p {
  margin-bottom: 1em;
}

.knowledge-detail-content ul,
.knowledge-detail-content ol {
  margin: 1em 0;
  padding-left: 2em;
}

.knowledge-detail-content li {
  margin-bottom: 0.5em;
}

.knowledge-detail-content code {
  padding: 2px 6px;
  background: var(--color-bg-hover);
  border-radius: 3px;
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
  font-size: 0.9em;
}

.knowledge-detail-content a {
  color: var(--color-accent-text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}

.knowledge-detail-content a:hover {
  border-bottom-color: var(--color-accent-text);
}

.knowledge-detail-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
}

.knowledge-detail-content table th,
.knowledge-detail-content table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.knowledge-detail-content table th {
  background: var(--color-bg-hover);
  font-weight: 600;
  color: var(--color-text);
}

.knowledge-detail-content table tr:last-child td {
  border-bottom: none;
}

.knowledge-detail-content table tr:hover {
  background: var(--color-bg-hover);
}

.knowledge-detail-content blockquote {
  margin: 1.5em 0;
  padding: 1em 1.5em;
  border: 1px solid rgba(var(--color-accent-rgb, 101, 116, 205), 0.4);
  background: var(--color-bg-hover);
  border-radius: 4px;
}

/* ナレッジ編集ビュー */
.knowledge-editor-view {
  padding: 20px;
}

.knowledge-editor {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow-soft);
}

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

.knowledge-editor-header h3 {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
}

.knowledge-btn {
  padding: 7px 12px;
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
}

.knowledge-btn:hover {
  background: var(--color-target);
  border-color: var(--color-accent-text);
}

.knowledge-btn-danger {
  color: var(--color-status-error);
}

.knowledge-btn-danger:hover {
  background: #fee2e2;
  border-color: var(--color-status-error);
}

.knowledge-detail-title {
  flex: 1;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.knowledge-detail-actions {
  display: flex;
  gap: 8px;
}

.knowledge-detail-meta {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
}

.knowledge-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.knowledge-detail-actions {
  display: flex;
  gap: 8px;
}

#knowledge-edit-button,
#knowledge-delete-button {
  padding: 6px 12px;
  background: var(--color-target);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 5px;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease;
}

#knowledge-edit-button:hover,
#knowledge-delete-button:hover {
  background: var(--color-surface-alt);
}

#knowledge-delete-button {
  background: transparent;
  color: var(--color-status-error);
}

#knowledge-delete-button:hover {
  background: rgba(239, 68, 68, 0.1);
}

.knowledge-detail-content,
.knowledge-editor-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.knowledge-detail-content {
  line-height: 1.7;
  color: var(--color-text);
}

.knowledge-detail-content h1 {
  font-size: 1.75rem;
  font-weight: 600;
  margin: 24px 0 16px 0;
  color: var(--color-text);
}

.knowledge-detail-content h2 {
  font-size: 1.375rem;
  font-weight: 600;
  margin: 20px 0 12px 0;
  color: var(--color-text);
}

.knowledge-detail-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 16px 0 10px 0;
  color: var(--color-text);
}

.knowledge-detail-content p {
  margin: 12px 0;
}

.knowledge-detail-content ul,
.knowledge-detail-content ol {
  margin: 12px 0;
  padding-left: 24px;
}

.knowledge-detail-content li {
  margin: 6px 0;
}

.knowledge-detail-content code {
  padding: 2px 6px;
  background: rgba(0, 0, 0, 0.08);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: 'Monaco', 'Courier New', monospace;
  font-size: 0.8125rem;
}

.knowledge-detail-content pre {
  padding: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow-x: auto;
  margin: 16px 0;
}

.knowledge-detail-content pre code {
  padding: 0;
  background: none;
  border: none;
}

.knowledge-detail-content blockquote {
  margin: 16px 0;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  background: var(--color-surface-alt);
  color: var(--color-text-secondary);
  border-radius: 4px;
}

.knowledge-detail-content a {
  color: var(--color-target);
  text-decoration: underline;
}

.knowledge-detail-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 16px 0;
  display: block;
}

.knowledge-editor-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.knowledge-editor-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.knowledge-form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.knowledge-form-field label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
}

.knowledge-input,
.knowledge-textarea {
  padding: 10px 14px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-size: 0.875rem;
  transition: border-color 0.15s ease;
}

.knowledge-input:focus,
.knowledge-textarea:focus {
  outline: none;
  border-color: var(--color-accent-text);
}

.knowledge-textarea {
  font-family: 'Monaco', 'Courier New', monospace;
  line-height: 1.6;
  resize: vertical;
  min-height: 400px;
}

#knowledge-title-input,
#knowledge-tags-input {
  padding: 10px 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 0.875rem;
}

#knowledge-content-input {
  padding: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 0.875rem;
  font-family: 'Monaco', 'Courier New', monospace;
  line-height: 1.6;
  resize: vertical;
  min-height: 300px;
}

#knowledge-title-input:focus,
#knowledge-tags-input:focus,
#knowledge-content-input:focus {
  outline: none;
  border-color: var(--color-target);
}

.knowledge-editor-actions {
  display: flex;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

#knowledge-save-button,
#knowledge-cancel-button {
  padding: 10px 20px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease;
}

#knowledge-save-button {
  background: var(--color-target);
  color: var(--color-text);
}

#knowledge-save-button:hover {
  background: var(--color-surface-alt);
}

#knowledge-cancel-button {
  background: transparent;
  color: var(--color-text-secondary);
}

#knowledge-cancel-button:hover {
  background: var(--color-surface-alt);
}

/* ===== 通知ポップアップ ===== */
.notification-popup {
  position: fixed;
  top: calc(90px + var(--app-update-bar-height));
  right: 20px;
  z-index: 10300;
  pointer-events: none;
  opacity: 0;
  transform: translateX(400px);
  transition: all 0.3s ease;
}

.notification-popup.show {
  opacity: 1;
  transform: translateX(0);
  pointer-events: all;
}

.notification-content {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 300px;
  max-width: 500px;
}

.notification-icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-target);
}

.notification-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.notification-message {
  flex: 1;
  color: var(--color-text);
  font-size: 0.875rem;
  line-height: 1.5;
}

.notification-close {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: background 0.15s ease;
}

.notification-close:hover {
  background: var(--color-surface-alt);
}

/* Notification Variants */
.notification-popup.variant-success .notification-icon {
  color: #22c55e;
}

.notification-popup.variant-error .notification-icon {
  color: var(--color-status-error);
}

.notification-popup.variant-warning .notification-icon {
  color: #f59e0b;
}

.notification-popup.variant-info .notification-icon {
  color: #818cf8;
}

/* リマインダー variant: 穏やかな紫系で「エラー感」 を出さない (識別はアイコン色のみ、 装飾ライン禁止) */
.notification-popup.variant-reminder .notification-icon {
  color: #8b5cf6;
}

/* ===== 確認ダイアログ ===== */
.confirm-dialog {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10200;
  align-items: center;
  justify-content: center;
  padding: 20px;
  /* 他のモーダルのbackdrop-filter blurの影響を受けないようにする */
  isolation: isolate;
  backdrop-filter: none;
}

.confirm-dialog.show {
  display: flex;
}

/* AI生成ローディングダイアログはメディア編集モーダルより前面に表示 */
.confirm-dialog.ai-loading-dialog {
  z-index: 10200 !important;
  backdrop-filter: blur(4px) !important;
}

.confirm-dialog-content {
  background: var(--color-surface);
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  max-width: 480px;
  width: 100%;
  overflow: hidden;
}

.confirm-dialog-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
}

.confirm-dialog-title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

.confirm-dialog-body {
  padding: 24px;
  max-height: 60vh;
  overflow-y: auto;
  position: relative;
}

/* スクロールバーを常に表示 */
.confirm-dialog-body::-webkit-scrollbar {
  width: 8px;
}

.confirm-dialog-body::-webkit-scrollbar-track {
  background: var(--color-border);
  border-radius: 4px;
}

.confirm-dialog-body::-webkit-scrollbar-thumb {
  background: var(--color-text-tertiary);
  border-radius: 4px;
}

.confirm-dialog-body::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}

/* スクロール位置が最下部の時はフェードを非表示 */
.confirm-dialog-body.scroll-at-bottom::after {
  display: none;
}

.confirm-dialog-body .form-group {
  margin-bottom: 16px;
}

.confirm-dialog-body .form-group:last-child {
  margin-bottom: 0;
}

.confirm-dialog-message {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text);
  white-space: pre-wrap;
}

.prompt-dialog-input {
  width: 100%;
  padding: 10px 12px;
  margin-top: 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color 0.15s ease;
}

.prompt-dialog-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.confirm-dialog-footer {
  display: flex;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--color-border);
  justify-content: flex-end;
}

.confirm-dialog-cancel,
.confirm-dialog-ok {
  padding: 10px 20px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease;
}

.confirm-dialog-cancel {
  background: transparent;
  color: var(--color-text-secondary);
}

.confirm-dialog-cancel:hover {
  background: var(--color-surface-alt);
}

.confirm-dialog-ok {
  background: var(--color-target);
  color: var(--color-text);
}

.confirm-dialog-ok:hover {
  opacity: 0.9;
}

/* ===== ダイアログ内タブUI ===== */
.dialog-tabs-container {
  display: flex;
  gap: 8px;
  padding: 0 24px;
  border-bottom: 1px solid var(--color-border);
  margin-top: -1px;
}

.dialog-tab {
  padding: 12px 20px;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
  position: relative;
  top: 1px;
}

.dialog-tab:hover {
  color: var(--color-text);
  background: var(--color-surface-alt);
}

.dialog-tab.active {
  color: var(--color-accent-text);
  border-bottom-color: var(--color-accent-text);
}

.dialog-tab-content {
  display: none;
}

.dialog-tab-content.active {
  display: block;
}

/* ===== ChatGPT風レスポンシブデザイン ===== */

/* モバイルヘッダー（デフォルトは非表示） */
.mobile-header {
  display: none;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: var(--app-update-bar-height);
  z-index: 1002;
  height: 60px;
}

.mobile-header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 12px;
  gap: 6px;
}

.mobile-header__menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.mobile-header__menu-btn:hover {
  background: var(--color-surface-alt);
}

.mobile-header__title {
  flex: 0 0 auto;
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mobile-header__chat-icon {
  display: none;
  height: 22px;
  width: 22px;
  object-fit: contain;
  border-radius: 4px;
  vertical-align: middle;
}

/* チャット表示中: ロゴをアイコンに切り替え */
body.chat-active .mobile-header__title {
  display: none;
}

body.chat-active .mobile-header__chat-icon {
  display: inline-block;
}

.mobile-header__context {
  flex: 1;
  min-width: 0;
  margin-left: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.01em;
}

.mobile-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border);
  transition: background-color 0.3s ease;
}

.mobile-status-indicator.status-connecting {
  background: #f59e0b;
  animation: pulse 2s infinite;
}

.mobile-status-indicator.status-connected {
  background: #10b981;
}

.mobile-status-indicator.status-error {
  background: var(--color-status-error);
}

.mobile-header__user-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.mobile-header__user-btn:hover {
  background: var(--color-surface-alt);
}

.mobile-header__user-btn svg {
  width: 20px;
  height: 20px;
  color: var(--color-text);
}

.mobile-header-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

/* モバイル用ユーザーメニュー */
.mobile-user-menu {
  position: fixed;
  top: 60px;
  right: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
  z-index: 1002;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px) scale(0.95);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 250px;
}

.mobile-user-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.mobile-user-menu__content {
  padding: 16px;
}

.mobile-user-menu__header {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 8px;
}

.mobile-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.mobile-user-menu__user-info {
  display: flex;
  gap: 10px;
  align-items: center;
}

.mobile-user-menu__username {
  display: block;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.mobile-user-menu__role {
  display: block;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.mobile-user-menu__level {
  display: none;
  font-size: 0.8rem;
  color: var(--color-text);
  margin-top: 2px;
}

.mobile-user-menu__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-user-menu__action {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: none;
  background: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s ease;
  font-size: 0.9rem;
  color: var(--color-text);
  width: 100%;
  text-align: left;
}

.mobile-user-menu__action:hover {
  background: var(--color-surface-alt);
}

.mobile-user-menu__action--danger {
  color: var(--color-status-error);
}

.mobile-user-menu__action--danger:hover {
  background: rgba(239, 68, 68, 0.1);
}

.mobile-user-menu__action svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* レスポンシブ切り替えポイント */

/* タブレット対応 (768px - 1024px) */
/* デスクトップ用 (769px以上) */

/* モバイル対応 (768px以下) */

/* 小型モバイル対応 (480px以下) */

/* ボタンloading状態 */
button[disabled],
button.loading {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

button.loading {
  position: relative;
}

button.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: button-loading-spinner 0.6s linear infinite;
}

@keyframes button-loading-spinner {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* チャットオプションメニュー */
.chat-options-btn {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border: none;
  background: transparent;
  color: var(--color-muted);
  font-size: 1rem;
  font-weight: bold;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--animation-duration) ease;
  flex-shrink: 0;
  margin-left: auto;
  padding: 0;
}

@media (hover: hover) and (pointer: fine) {
  .sidebar__menu-item:hover .chat-options-btn {
    opacity: 1;
  }

  .chat-options-btn:hover {
    background: var(--color-target);
    color: var(--color-accent-strong);
  }
}

.chat-options-menu {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  box-shadow: var(--shadow-hover);
  padding: 4px 0;
  z-index: 1000;
  min-width: 140px;
  position: absolute;
  backdrop-filter: blur(8px);
}

.chat-options-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.chat-options-list li {
  margin: 0;
}

.chat-options-list button {
  width: 100%;
  border: none;
  background: transparent;
  padding: 6px 12px;
  text-align: left;
  color: var(--color-text);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--animation-duration) ease;
}

.chat-options-list button:hover {
  background: var(--color-target);
  transform: translateX(2px);
}

.chat-options-list button.delete-option {
  color: var(--color-status-off);
}

.chat-options-list button.delete-option:hover {
  background: var(--color-status-off);
  color: var(--color-button-text);
  transform: translateX(2px);
}

.theme-dark .chat-options-menu {
  background: var(--color-surface);
  box-shadow:
    0 8px 24px rgba(0, 0, 0, 0.4),
    0 2px 8px rgba(0, 0, 0, 0.2);
}

/* 編集モーダルフッター（強制適用） */
.popup-footer {
  display: flex !important;
  justify-content: flex-end !important;
  align-items: center !important;
  padding: 16px 24px 20px 24px !important;
  border-top: 1px solid var(--color-border) !important;
  margin-top: auto !important;
  width: 100% !important;
  box-sizing: border-box !important;
  background-color: var(--color-surface) !important;
}

/* ========================================
   アバタークロッパー
   ======================================== */

.avatar-cropper-canvas {
  display: block;
  margin: 0 auto;
  cursor: grab;
  touch-action: none;
  border-radius: 8px;
}

.avatar-cropper-canvas:active {
  cursor: grabbing;
}

.avatar-cropper-zoom {
  display: block;
  width: 80%;
  max-width: 380px;
  margin: 12px auto 0;
  accent-color: #9aa6e4;
}

.avatar-cropper-hint {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 8px;
}

/* ===== 再認証モーダル ===== */
.reauth-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10500;
  align-items: center;
  justify-content: center;
  padding: 20px;
  isolation: isolate;
}

.reauth-modal.show {
  display: flex;
}

.reauth-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(3px);
}

.reauth-modal__dialog {
  position: relative;
  background: var(--color-surface);
  border-radius: 12px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.28);
  max-width: 440px;
  width: 100%;
  padding: 28px;
}

.reauth-modal__title {
  margin: 0 0 12px;
  font-size: 1.15rem;
  color: var(--color-text-primary);
}

.reauth-modal__desc {
  margin: 0 0 18px;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.reauth-modal__user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--color-bg-secondary);
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.reauth-modal__user-label {
  color: var(--color-text-secondary);
}

.reauth-modal__user-name {
  color: var(--color-text-primary);
  font-weight: 600;
}

.reauth-modal__form,
.reauth-modal__guest {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.reauth-modal__form[hidden],
.reauth-modal__guest[hidden] {
  display: none;
}

.reauth-modal__label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.reauth-modal__input {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 0.95rem;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
}

.reauth-modal__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.18);
}

.reauth-modal__error {
  margin: 0;
  min-height: 1.2em;
  font-size: 0.85rem;
  color: var(--color-danger);
}

.reauth-modal__submit {
  margin-top: 6px;
  padding: 10px 16px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

.reauth-modal__submit:hover:not(:disabled) {
  background: var(--color-primary-hover, var(--color-primary));
}

.reauth-modal__submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.reauth-modal__guest p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.reauth-modal__footer {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.reauth-modal__logout-link {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-size: 0.82rem;
  cursor: pointer;
  text-decoration: underline;
  padding: 4px 8px;
}

.reauth-modal__logout-link:hover {
  color: var(--color-text-primary);
}

/* ===== ログイン画面フッター（AGPL-3.0 コンプライアンス） ===== */
.login-footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.login-footer__text {
  margin: 0;
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.login-footer__text a {
  color: var(--color-text-secondary);
  text-decoration: underline;
}

.login-footer__text a:hover {
  color: var(--color-text-primary);
}

/* タグ管理 (admin) */
.admin-tags-toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.admin-tags-toolbar-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.admin-tags-sort-select {
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.8125rem;
}

.admin-tags-count {
  margin-left: auto;
  color: var(--color-text-tertiary, #8a94a6);
  font-size: 0.8125rem;
}

.admin-tag-chip {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  vertical-align: middle;
}

.admin-tag-unused {
  color: var(--color-text-tertiary, #8a94a6);
}

/* タグマージモーダル */
.admin-tags-select-col {
  width: 32px;
  text-align: center;
}

.admin-tags-merge-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.admin-tags-merge-modal {
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: 10px;
  padding: 20px;
  width: min(440px, calc(100vw - 32px));
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.admin-tags-merge-title {
  margin: 0 0 8px;
  font-size: 1rem;
}

.admin-tags-merge-desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin: 0 0 12px;
}

.admin-tags-merge-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.admin-tags-merge-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.875rem;
}

.admin-tags-merge-option:has(input:checked) {
  border-color: var(--color-accent, #a4b2dd);
  background: color-mix(in srgb, var(--color-accent, #a4b2dd) 8%, transparent);
}

.admin-tags-merge-impact {
  font-size: 0.75rem;
  color: var(--color-text-tertiary, #8a94a6);
  margin: 0 0 14px;
}

.admin-tags-merge-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* AIタグ提案プレビュー */
.media-ai-suggest-note {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin: 0 0 12px;
}

.media-ai-suggest-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 50vh;
  overflow-y: auto;
}

.media-ai-suggest-row {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px 12px;
}

.media-ai-suggest-file {
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.media-ai-suggest-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.media-ai-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.8125rem;
  cursor: pointer;
}

.media-ai-tag-chip:has(input:checked) {
  border-color: var(--color-accent, #a4b2dd);
  background: color-mix(in srgb, var(--color-accent, #a4b2dd) 10%, transparent);
}