/* ========================================
   Chat画面
   ======================================== */

.chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--bg-primary);
}

.chat-header {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

/* ログアウトボタン（Chat画面専用） */
#logoutBtn {
    margin-left: auto;
    padding: 8px 16px;
    background: none;
    border: 1.5px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    white-space: nowrap;
    flex-shrink: 0;
}

#logoutBtn:hover {
    border-color: var(--error);
    color: var(--error);
    background-color: rgba(239, 68, 68, 0.05);
}

/* オプションボタン */
.options-btn {
    width: 36px;
    height: 36px;
    padding: 8px;
    background: none;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.options-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--accent-primary);
}

.options-btn svg {
    width: 100%;
    height: 100%;
}

/* Popoverオプションメニュー */
.options-popover {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 0;
    margin-bottom: 8px;
    min-width: 280px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 8px;
    z-index: 1000;
    animation: popoverSlideUp 0.2s ease-out;
}

@keyframes popoverSlideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.options-popover.active {
    display: block;
}

.popover-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.popover-item:hover {
    background-color: var(--bg-secondary);
}

.popover-item.selected {
    background-color: var(--accent-light);
}

.popover-item svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.popover-item.selected svg {
    color: var(--accent-primary);
}

.popover-item-content {
    flex: 1;
}

.popover-item-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.popover-item-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

/* チャットメッセージ */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    scroll-behavior: smooth;
}

.welcome-message {
    text-align: center;
    padding: 60px 20px;
}

.welcome-message h2 {
    font-size: 28px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.welcome-message p {
    font-size: 16px;
    color: var(--text-secondary);
}

.message {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    animation: fadeIn 0.3s ease-in;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: 600;
    font-size: 14px;
}

.message.user .message-avatar {
    background-color: var(--accent-primary);
    color: white;
}

.message.assistant .message-avatar {
    background-color: var(--success);
    color: white;
}

.message-content {
    flex: 1;
    min-width: 0;
}

.message-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.message-author {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.message-time {
    font-size: 12px;
    color: var(--text-tertiary);
}

.message-text {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    word-wrap: break-word;
}

.message-images {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.message-image {
    max-width: 200px;
    max-height: 200px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    object-fit: cover;
}

.message-table {
    margin-top: 12px;
    overflow-x: auto;
}

.message-table table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    overflow: hidden;
}

.message-table th,
.message-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.message-table th {
    background-color: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
}

.message-table td {
    color: var(--text-secondary);
}

.message-actions {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.message-action-btn {
    padding: 6px 12px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.message-action-btn:hover {
    background-color: var(--bg-secondary);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* チャット入力 */
.chat-input-container {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

.file-upload-area {
    display: none;
    gap: 8px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.file-upload-area.has-files {
    display: flex;
}

.uploaded-file {
    position: relative;
    display: inline-block;
}

.uploaded-file-preview {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.remove-file-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 20px;
    height: 20px;
    padding: 0;
    background-color: var(--error);
    border: 2px solid var(--bg-primary);
    border-radius: 50%;
    color: white;
    font-size: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.remove-file-btn:hover {
    transform: scale(1.1);
}

.chat-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    padding: 12px;
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.2s;
    position: relative;
}

.chat-input-wrapper:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.attach-btn,
.send-btn {
    width: 36px;
    height: 36px;
    padding: 8px;
    background: none;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.attach-btn:hover,
.send-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--accent-primary);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.attach-btn svg,
.send-btn svg {
    width: 100%;
    height: 100%;
}

.chat-input-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.selected-options-tags {
    display: none;
    flex-wrap: wrap;
    gap: 6px;
}

.selected-options-tags.active {
    display: flex;
}

.option-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 8px;
    background-color: var(--accent-light);
    border: 1px solid var(--accent-primary);
    border-radius: 6px;
    font-size: 12px;
    color: var(--accent-primary);
    font-weight: 500;
    animation: tagFadeIn 0.2s ease-out;
}

@keyframes tagFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.option-tag svg {
    width: 14px;
    height: 14px;
}

.option-tag-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    padding: 0;
    background: none;
    border: none;
    color: var(--accent-primary);
    cursor: pointer;
    border-radius: 3px;
    transition: all 0.2s;
}

.option-tag-remove:hover {
    background-color: var(--accent-primary);
    color: white;
}

.option-tag-remove svg {
    width: 10px;
    height: 10px;
}

#chatInput {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: none;
    max-height: 200px;
    line-height: 1.5;
    min-height: 20px;
}

#chatInput::placeholder {
    color: var(--text-tertiary);
}

/* ========================================
   ファイルアップロードプレビュー（ドキュメントファイル対応）
   ======================================== */

/* 画像ファイル: サムネイル表示 */
.uploaded-file--image {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    max-width: 100px;
}

.uploaded-file--image .uploaded-file-name {
    font-size: 10px;
    color: var(--text-tertiary);
    text-align: center;
    word-break: break-all;
    max-width: 90px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ドキュメントファイル: アイコン＋ファイル名カード */
.uploaded-file--doc {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: var(--bg-secondary);
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    max-width: 200px;
    min-width: 120px;
}

.uploaded-file-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.uploaded-file-icon svg {
    width: 100%;
    height: 100%;
}

.uploaded-file--doc .uploaded-file-name {
    font-size: 11px;
    color: var(--text-primary);
    word-break: break-all;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

/* ファイル種別のアイコン色 */
.file-pdf .uploaded-file-icon svg { color: #e53e3e; }
.file-word .uploaded-file-icon svg { color: #2b6cb0; }
.file-excel .uploaded-file-icon svg { color: #276749; }
.file-ppt .uploaded-file-icon svg { color: #c05621; }
.file-other .uploaded-file-icon svg { color: var(--text-secondary); }

/* ドキュメントファイルのボーダー色 */
.file-pdf.uploaded-file--doc { border-color: rgba(229, 62, 62, 0.3); }
.file-word.uploaded-file--doc { border-color: rgba(43, 108, 176, 0.3); }
.file-excel.uploaded-file--doc { border-color: rgba(39, 103, 73, 0.3); }
.file-ppt.uploaded-file--doc { border-color: rgba(192, 86, 33, 0.3); }

/* ========================================
   メッセージ内のドキュメントファイル表示
   ======================================== */

.message-doc-files {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.message-doc-file {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    max-width: 200px;
}

.message-doc-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.message-doc-icon svg {
    width: 100%;
    height: 100%;
}

.message-doc-file span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* メッセージ内ドキュメントのアイコン色 */
.message-doc-file.file-pdf .message-doc-icon svg { color: #e53e3e; }
.message-doc-file.file-word .message-doc-icon svg { color: #2b6cb0; }
.message-doc-file.file-excel .message-doc-icon svg { color: #276749; }
.message-doc-file.file-ppt .message-doc-icon svg { color: #c05621; }
.message-doc-file.file-other .message-doc-icon svg { color: var(--text-secondary); }

/* ========================================
   参照ドキュメントカード（仕様書準拠の表示）
   ======================================== */

.reference-card-filename {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 2px;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.reference-source-badge {
    display: inline-block;
    padding: 2px 8px;
    background-color: var(--accent-light);
    color: var(--accent-primary);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

.reference-card-attachments {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.reference-attachment {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
}

.reference-attachment svg {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    color: var(--text-tertiary);
}

.reference-attachment span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.reference-card-link-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  /* 親要素との位置調整が必要な場合 */
  vertical-align: middle; 
}

/* ---- Web 検索結果カードの差別化スタイル ---- */

/* Web 検索結果カード: 左ボーダーをブルーにして内部RAGと視覚的に区別 */
.reference-card--web {
    border-left: 3px solid #3182ce;
    background-color: #ebf8ff;
}

/* Web 検索結果アイコン: 地球儀アイコンをブルー系に */
.reference-card-icon--web {
    color: #3182ce;
}

/* Web 検索結果のソースバッジ: インターネットを示すブルー系バッジ */
.reference-source-badge--web {
    display: inline-block;
    padding: 2px 8px;
    background-color: #bee3f8;
    color: #2b6cb0;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 500;
}

/* ========================================
   回答を修正ボタン（フィードバック学習）
   ======================================== */

.message-action-btn--edit {
    color: var(--text-secondary);
}

.message-action-btn--edit:hover {
    background-color: var(--bg-tertiary);
    color: var(--accent-primary);
}

/* フィードバック完了通知 */
.feedback-success-notice {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: #16a34a;
    font-weight: 500;
    animation: fadeIn 0.2s ease-in;
}

/* ========================================
   回答修正モーダル（フィードバック学習 仕様書 5.2）
   ======================================== */

.feedback-modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.45);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.feedback-modal-overlay.active {
    display: flex;
}

.feedback-modal {
    background-color: var(--bg-primary);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 520px;
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow: hidden;
    animation: feedbackModalIn 0.2s ease-out;
}

@keyframes feedbackModalIn {
    from {
        opacity: 0;
        transform: translateY(-12px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

.feedback-modal-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.feedback-modal-close {
    width: 28px;
    height: 28px;
    padding: 4px;
    background: none;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feedback-modal-close:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.feedback-modal-close svg {
    width: 16px;
    height: 16px;
}

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

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

.feedback-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.feedback-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    line-height: 1.5;
    resize: vertical;
    transition: border-color 0.15s;
    box-sizing: border-box;
}

.feedback-textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background-color: var(--bg-primary);
}

.feedback-error {
    font-size: 12px;
    color: var(--error);
    min-height: 16px;
}

.feedback-modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.feedback-btn-cancel {
    padding: 8px 16px;
    background: none;
    border: 1.5px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.15s;
}

.feedback-btn-cancel:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.feedback-btn-submit {
    padding: 8px 20px;
    background-color: var(--accent-primary);
    border: none;
    border-radius: 6px;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.15s;
}

.feedback-btn-submit:hover:not(:disabled) {
    opacity: 0.88;
}

.feedback-btn-submit:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}