/* Q&Aコンポーネント共通CSS（受講画面・管理画面共通） */
.qa-toolbar { display: flex; gap: 8px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.qa-select { padding: 6px 10px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 13px; }
.qa-search-input { flex: 1; min-width: 120px; padding: 6px 10px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 13px; }
.qa-input { width: 100%; padding: 8px 12px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 14px; box-sizing: border-box; }
.qa-textarea { width: 100%; padding: 8px 12px; border: 1px solid #d1d5db; border-radius: 6px; font-size: 14px; resize: vertical; box-sizing: border-box; }
.qa-btn { padding: 6px 14px; border: 1px solid #d1d5db; border-radius: 6px; cursor: pointer; font-size: 13px; background: #fff; }
.qa-btn:hover { background: #f9fafb; }
.qa-btn-primary { background: #16a34a; color: #fff; border-color: #16a34a; }
.qa-btn-primary:hover { background: #15803d; }
.qa-btn-sm { padding: 4px 10px; font-size: 12px; }
.qa-btn-link { background: none; border: none; color: #16a34a; cursor: pointer; font-size: 13px; padding: 2px 4px; }
.qa-btn-link:hover { text-decoration: underline; }
.qa-btn-reply { background: #16a34a; color: #fff; border-color: #16a34a; font-size: 12px; padding: 3px 10px; }
.qa-btn-reply:hover { background: #15803d; }
.qa-btn-delete { background: none; border: 1px solid #fca5a5; color: #ef4444; padding: 2px 8px; border-radius: 4px; cursor: pointer; font-size: 11px; }
.qa-btn-delete:hover { background: #fef2f2; }
.qa-question-card { padding: 14px 0; border-bottom: 1px solid #e2e8f0; }
.qa-question-card:last-child { border-bottom: none; }
.qa-question-header { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.qa-question-title { font-weight: 600; font-size: 15px; color: #1e293b; }
.qa-question-body { font-size: 13px; color: #475569; line-height: 1.7; margin: 6px 0; white-space: pre-wrap; }
.qa-question-body img, .qa-answer-body img { max-width: 100%; height: auto; border-radius: 4px; margin: 4px 0; }
.qa-question-meta { display: flex; align-items: center; gap: 12px; font-size: 12px; color: #64748b; flex-wrap: wrap; }
.qa-badge { font-size: 11px; padding: 1px 8px; border-radius: 4px; font-weight: 500; }
.qa-badge-resolved { background: #dcfce7; color: #16a34a; }
.qa-badge-lecture { background: #e0f2fe; color: #0284c7; }
.qa-badge-instructor { background: #fef3c7; color: #d97706; font-weight: 600; }
.qa-like-btn { background: none; border: 1px solid #e2e8f0; border-radius: 4px; padding: 2px 8px; cursor: pointer; font-size: 12px; }
.qa-like-btn.liked { background: #eff6ff; border-color: #93c5fd; color: #2563eb; }
.qa-like-count { font-weight: 600; }
.qa-answers-area { padding: 12px 0 0 20px; border-left: 2px solid #e2e8f0; margin-top: 8px; }
.qa-answer-card { padding: 10px 0; border-bottom: 1px solid #f1f5f9; }
.qa-answer-card:last-child { border-bottom: none; }
.qa-answer-meta { display: flex; align-items: center; gap: 8px; font-size: 12px; color: #64748b; margin-bottom: 4px; }
.qa-answer-author { font-weight: 600; color: #334155; }
.qa-answer-body { font-size: 13px; color: #475569; line-height: 1.7; white-space: pre-wrap; }
.qa-avatar { width: 24px; height: 24px; border-radius: 50%; object-fit: cover; }
.qa-avatar-initial { width: 24px; height: 24px; border-radius: 50%; background: #16a34a; color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; flex-shrink: 0; }
.qa-answer-node { border-left: 2px solid #e2e8f0; margin-top: 4px; padding-left: 8px; }
.qa-answer-node:first-child { margin-top: 8px; }
.qa-reply-to { font-size: 11px; color: #94a3b8; display: block; margin-bottom: 2px; }
.qa-thread-toggle { margin: 4px 0 4px 20px; font-size: 12px; }
.qa-answer-form { margin-top: 12px; }
.qa-answer-textarea { font-size: 13px; }
#qa-body-editor .ql-editor { min-height: 100px; font-size: 14px; }
.qa-answer-editor .ql-editor { min-height: 60px; font-size: 13px; }
.qa-lecture-label { font-size: 12px; color: #0284c7; font-weight: 600; margin-bottom: 4px; }
.qa-lecture-label-general { color: #64748b; }
.qa-lecture-link { font-size: 12px; color: #0284c7; font-weight: 600; margin-bottom: 4px; display: block; cursor: pointer; text-decoration: none; }
.qa-lecture-link:hover { text-decoration: underline; color: #0369a1; }
.qa-timestamp-link { display: inline-block; background: #eff6ff; color: #2563eb; font-size: 12px; font-weight: 700; padding: 1px 8px; border-radius: 4px; cursor: pointer; text-decoration: none; margin-left: 6px; font-family: monospace; }
.qa-timestamp-link:hover { background: #dbeafe; text-decoration: underline; }

/* ページネーション */
.qa-page-btn { padding: 6px 12px; border: 1px solid #d1d5db; border-radius: 6px; cursor: pointer; font-size: 13px; background: #fff; color: #333; }
.qa-page-btn:hover { background: #f3f4f6; border-color: #9ca3af; }
.qa-page-current { padding: 6px 12px; border-radius: 6px; font-size: 13px; font-weight: 700; background: #16a34a; color: #fff; }

@media (max-width: 768px) {
  .qa-like-text { display: none; }
  .qa-page-btn { padding: 4px 8px; font-size: 12px; }
  .qa-page-current { padding: 4px 8px; font-size: 12px; }
}