/* ─────────────────────────────────────────────────────────────────
   Knowledge Studio — Standalone CSS
   Keep ALL knowledge-specific styles here, not in chat.css.
   ───────────────────────────────────────────────────────────────── */

/* ── KS Message Layout ────────────────────────────────────────── */

.ksMsg {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  align-items: flex-start;
}
.ksMsgAvatar {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #a855f7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.ksMsgBody { flex: 1; min-width: 0; }

/* ── Message Header Bar ───────────────────────────────────────── */

.ksMsgHeader {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 0.75rem;
}
.ksMsgHeader .startTs { color: var(--text-muted); }
.ksMsgHeader .endTs { color: var(--text-muted); }
.ksMsgHeader .msgCollapseBtn { cursor: pointer; }
.ksMsgHeader .msgStopBtn {
  background: #ef4444;
  border: none;
  border-radius: 4px;
  padding: 2px 8px;
  color: white;
  font-size: 0.7rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}
.ksMsgHeader .msgCloseBtn {
  cursor: pointer;
  margin-left: 4px;
  color: var(--text-tertiary);
}
.ksMsgHeader .msgCloseBtn:hover { color: #ef4444; }

/* ── Scissors Toggle ──────────────────────────────────────────── */

.msgScissorsBtn {
  background: none;
  border: 1px solid var(--border, rgba(255,255,255,0.12));
  border-radius: 4px;
  padding: 3px 6px;
  cursor: pointer;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  transition: color 0.15s, border-color 0.15s;
}
.msgScissorsBtn:hover { color: var(--accent-color); border-color: var(--accent-color); }
.msgScissorsBtn.active {
  color: #22c55e;
  border-color: #22c55e;
}
.msgScissorsBtn.loading {
  opacity: 0.5;
  pointer-events: none;
  animation: ks-pulse 1s ease-in-out infinite;
}

/* ── Export Button ───────────────────────────────────────────── */
.ksExportBtn {
  background: none;
  border: 1px solid var(--border, rgba(255,255,255,0.12));
  border-radius: 4px;
  padding: 3px 6px;
  cursor: pointer;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  transition: color 0.15s, border-color 0.15s;
}
.ksExportBtn:hover { color: var(--accent-color); border-color: var(--accent-color); }

/* ── Export Dropdown Menu ────────────────────────────────────── */
.ksExportMenu {
  background: var(--bg-primary, #0d1117);
  border: 1px solid var(--border-color, rgba(255,255,255,0.12));
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  min-width: 200px;
  padding: 4px 0;
  animation: ksMenuFadeIn 0.12s ease-out;
}
@keyframes ksMenuFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.ksExportMenuItem {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 14px; cursor: pointer;
  font-size: 0.85rem; color: var(--text-primary);
  transition: background 0.1s;
}
.ksExportMenuItem:hover { background: rgba(99,102,241,0.08); }
.ksExportMenuItem:first-child { border-radius: 8px 8px 0 0; }
.ksExportMenuItem:last-child { border-radius: 0 0 8px 8px; }
.ksExportMenuIcon { font-size: 1.0em; flex-shrink: 0; width: 20px; text-align: center; }

/* ── Retrieval indicator ──────────────────────────────────────── */

.knowledgeRetrieval {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  margin-bottom: 8px;
  font-size: 0.82em;
  color: var(--text-secondary);
  background: rgba(var(--accent-rgb), 0.06);
  border-radius: 6px;
}
.knowledgeRetrieval .retrievalIcon { font-size: 0.9em; }
.knowledgeRetrieval.searching .retrievalIcon {
  animation: ks-pulse 1.2s ease-in-out infinite;
}
@keyframes ks-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Collapsible Sections (shared) ────────────────────────────── */

.ksSection {
  margin-bottom: 8px;
  background: var(--bg-tertiary);
  border-radius: 6px;
  border: 1px solid var(--border, rgba(255,255,255,0.08));
}
.ksSection summary {
  list-style: none;
  cursor: pointer;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  color: var(--text-secondary);
}
.ksSection summary::-webkit-details-marker { display: none; }
.ksSection .collapseIcon {
  transition: transform 0.2s;
  transform: rotate(-90deg);
  flex-shrink: 0;
}
.ksSection[open] > summary .collapseIcon {
  transform: rotate(0deg);
}
.ksSectionBody {
  padding: 8px 12px;
  font-size: 0.88rem;
  border-top: 1px solid var(--border, rgba(255,255,255,0.08));
}
/* Reasoning pane: cap height + scrollbar */
.thinkingContent {
  max-height: 260px;
  overflow-y: auto;
  scroll-behavior: smooth;
  color: #dbeafe;
  line-height: 1.6;
}
.thinkingContent p { margin: 2px 0; }

/* Section-specific summary colors + sizes */
.thinkingSection summary { color: #c4b5fd; }
.ksToolsSummary { color: #7dd3fc; }
.ksSourcesSummary { color: #6ee7b7; font-size: 1.0rem; font-weight: 600; }
.ksArtifactsSummary { color: #fbbf24; font-size: 1.0rem; font-weight: 600; }

/* Count badges */
.ksToolsCount,
.ksSourcesCount,
.ksArtifactsCount {
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 0.72rem;
  font-weight: 600;
  color: white;
}
.ksToolsCount { background: #3b82f6; }
.ksSourcesCount { background: rgba(16, 185, 129, 0.6); }
.ksArtifactsCount { background: rgba(245, 158, 11, 0.62); }

/* ── Tool Lines ───────────────────────────────────────────────── */

.ksToolsContent {
  max-height: 200px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.ksToolLine {
  padding: 4px 0;
  display: flex;
  gap: 8px;
  align-items: flex-start;
  border-bottom: 1px solid var(--border, rgba(255,255,255,0.06));
}
.ksToolLine:last-child { border-bottom: none; }
.ksToolTs { flex-shrink: 0; font-size: 0.8rem; color: #67e8f9; font-family: monospace; min-width: 58px; }
.ksToolStatus { flex-shrink: 0; width: 16px; text-align: center; }
.ksToolDesc { flex: 1; line-height: 1.4; font-size: 0.85rem; color: #e2e8f0; }
.ksToolMeta { font-size: 0.82rem; color: #c4b5fd; }
.ksToolTime { flex-shrink: 0; font-size: 0.82rem; color: #fcd34d; }

/* ── Sources / Citations ──────────────────────────────────────── */

/* Sources body: grid layout + scroll */
.ksSourcesBody {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 6px;
  max-height: 220px;
  overflow-y: auto;
  scroll-behavior: smooth;
}
/* Artifacts body: scroll */
.ksArtifactsBody {
  max-height: 220px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.citationItem {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  font-size: 0.92em;
  cursor: pointer;
  color: var(--text-primary);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.citationItem:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.14), rgba(168, 85, 247, 0.12));
}
.citationBadge {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.42), rgba(139, 92, 246, 0.42));
  color: #ecfeff;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72em;
  font-weight: 600;
  flex-shrink: 0;
}
.citationDoc {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
  font-size: 0.92em;
}
.citationScore {
  color: var(--text-secondary);
  font-size: 0.85em;
  font-weight: 500;
  margin-left: auto;
  flex-shrink: 0;
}
.citationExpanded {
  grid-column: 1 / -1;
  padding: 8px 10px 8px 38px;
  font-size: 0.88em;
  color: var(--text-secondary);
  line-height: 1.5;
  border-left: 2px solid rgba(99, 102, 241, 0.45);
  margin-left: 0;
}

/* ── Artifact Download Card ───────────────────────────────────── */

.artifactCard {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  margin-bottom: 6px;
}
.artifactCard:last-child { margin-bottom: 0; }
.artifactIcon { font-size: 1.4em; flex-shrink: 0; margin-top: 1px; }
.artifactInfo { flex: 1; min-width: 0; }
.artifactNameRow {
  display: flex;
  align-items: center;
  gap: 10px;
}
.artifactName { font-weight: 600; font-size: 0.95em; color: var(--text-primary); }
.artifactMeta { font-size: 0.82em; color: var(--text-secondary); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-top: 2px; }
.artifactBtn {
  padding: 4px 12px;
  border: 1px solid rgba(99, 102, 241, 0.45);
  border-radius: 5px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(124, 58, 237, 0.2));
  color: #dbeafe;
  text-decoration: none;
  font-size: 0.82em;
  font-weight: 500;
  flex-shrink: 0;
  cursor: pointer;
  white-space: nowrap;
}
.artifactBtn:hover {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(124, 58, 237, 0.3));
  color: #eef2ff;
}

/* ── Markdown tables in KS ────────────────────────────────────── */

.ksMsg .messageContent table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0;
  font-size: 0.88em;
}
.ksMsg .messageContent th,
.ksMsg .messageContent td {
  padding: 6px 10px;
  border: 1px solid var(--border, rgba(255,255,255,0.1));
  text-align: left;
}
.ksMsg .messageContent th {
  background: rgba(var(--border-rgb, 128,128,128), 0.1);
  font-weight: 600;
  font-size: 0.85em;
}

.ksMsg .messageContent h1,
.ksMsg .messageContent h2,
.ksMsg .messageContent h3 {
  color: #e2e8f0;
}
.ksMsg .messageContent h1 {
  color: #f8fafc;
  border-bottom: 2px solid rgba(56, 189, 248, 0.75);
  padding-bottom: 4px;
}
.ksMsg .messageContent h2 {
  color: #c7d2fe;
  border-left: 3px solid rgba(99, 102, 241, 0.9);
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.13), rgba(59, 130, 246, 0.02));
  border-radius: 0 6px 6px 0;
  padding: 5px 8px;
}
.ksMsg .messageContent h3 {
  color: #fcd34d;
  border-bottom: 1px dashed rgba(245, 158, 11, 0.45);
  display: inline-block;
}
.ksMsg .messageContent strong {
  color: #f5d0fe;
  font-weight: 650;
}
.ksMsg .messageContent em {
  color: #99f6e4;
  font-style: normal;
}
.ksMsg .messageContent blockquote {
  margin: 10px 0;
  padding: 8px 12px;
  border-left: 3px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.35);
  border-radius: 0 8px 8px 0;
}
.ksMsg .messageContent .ksCallout {
  margin: 10px 0;
  padding: 9px 12px;
  border-left: 3px solid rgba(148, 163, 184, 0.7);
  border-radius: 0 8px 8px 0;
  background: rgba(15, 23, 42, 0.28);
}
.ksMsg .messageContent .ksCalloutKey {
  border-left-color: rgba(56, 189, 248, 0.95);
  background: rgba(37, 99, 235, 0.2);
}
.ksMsg .messageContent .ksCalloutAction {
  border-left-color: rgba(244, 114, 182, 0.96);
  background: rgba(168, 85, 247, 0.24);
}
.ksMsg .messageContent .ksCalloutWarn {
  border-left-color: rgba(245, 158, 11, 0.95);
  background: rgba(245, 158, 11, 0.2);
}
.ksMsg .messageContent a {
  color: #7dd3fc;
  text-decoration: underline;
  text-decoration-color: rgba(125, 211, 252, 0.65);
}
.ksMsg .messageContent ul > li::marker,
.ksMsg .messageContent ol > li::marker {
  color: #c4b5fd;
}
.ksMsg .messageContent table {
  border: 1px solid rgba(99, 102, 241, 0.45);
  border-radius: 8px;
  overflow: hidden;
}
.ksMsg .messageContent th {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.3), rgba(168, 85, 247, 0.26));
  color: #eef2ff;
  border-color: rgba(129, 140, 248, 0.55);
}
.ksMsg .messageContent td {
  border-color: rgba(100, 116, 139, 0.5);
}
.ksMsg .messageContent tr:nth-child(even) td {
  background: rgba(59, 130, 246, 0.08);
}
.ksMsg .messageContent tr:hover td {
  background: rgba(168, 85, 247, 0.11);
}

.ksMsg .messageContent .highlight-number {
  color: #86efac;
  font-weight: 650;
}
.ksMsg .messageContent .highlight-percent {
  color: #fbbf24;
  font-weight: 650;
}
.ksMsg .messageContent .highlight-positive {
  color: #4ade80;
  font-weight: 550;
}
.ksMsg .messageContent .highlight-negative {
  color: #fda4af;
  font-weight: 550;
}
.ksMsg .messageContent .highlight-key {
  color: #c4b5fd;
  font-weight: 650;
}

/* ── Document manager panel (slide-over) ──────────────────────── */

.docManagerPanel {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 320px;
  background: var(--bg-primary);
  border-left: 1px solid rgba(var(--border-rgb), 0.3);
  z-index: 20;
  overflow-y: auto;
  box-shadow: -2px 0 8px rgba(0,0,0,0.08);
  transition: transform 0.2s ease;
  display: flex;
  flex-direction: column;
}
.docManagerPanel.hidden { transform: translateX(100%); pointer-events: none; }

.docManagerHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(var(--border-rgb), 0.3);
  flex-shrink: 0;
}
.docManagerHeader h3 { margin: 0; font-size: 0.95rem; }
.docManagerCloseBtn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 1.1rem;
  padding: 2px 6px;
  border-radius: 4px;
}
.docManagerCloseBtn:hover { background: rgba(var(--border-rgb), 0.2); }

.docManagerActions {
  display: flex;
  gap: 8px;
  padding: 8px 14px;
  border-bottom: 1px solid rgba(var(--border-rgb), 0.15);
  flex-shrink: 0;
}
.docManagerActions button {
  flex: 1;
  padding: 6px 10px;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 6px;
  background: var(--bg-secondary);
  cursor: pointer;
  font-size: 0.82em;
  color: var(--text-primary);
}
.docManagerActions button:hover { border-color: var(--accent-color); }

.docManagerFilter {
  padding: 6px 14px;
  flex-shrink: 0;
}
.docManagerFilter input {
  width: 100%;
  padding: 5px 8px;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 5px;
  font-size: 0.82em;
  background: var(--bg-primary);
  color: var(--text-primary);
}

.docManagerList {
  flex: 1;
  overflow-y: auto;
}

.docManagerItem {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  cursor: pointer;
  border-bottom: 1px solid rgba(var(--border-rgb), 0.1);
}
.docManagerItem:hover { background: rgba(var(--accent-rgb), 0.04); }
.docStatus { font-size: 0.85em; flex-shrink: 0; }
.docInfo { flex: 1; min-width: 0; }
.docTitle { font-size: 0.88em; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.docMeta { font-size: 0.78em; color: var(--text-secondary); }
.docItemActions { opacity: 0; transition: opacity 0.15s; }
.docManagerItem:hover .docItemActions { opacity: 1; }
.docItemActions button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.82em;
  padding: 2px 4px;
}
.docItemActions button:hover { color: var(--error-color, #e74c3c); }

/* ── Upload zone ──────────────────────────────────────────────── */

.ksUploadZone { padding: 10px 14px; }
.ksUploadDropArea {
  border: 2px dashed rgba(var(--border-rgb), 0.4);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  font-size: 0.85em;
  color: var(--text-secondary);
  transition: border-color 0.2s;
  cursor: pointer;
}
.ksUploadDropArea.dragOver {
  border-color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.04);
}
.ksUploadOptions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.ksUploadOptions select {
  flex: 1;
  padding: 4px 6px;
  font-size: 0.82em;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 5px;
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* ── Toolbar button (above chat) ──────────────────────────────── */

.knowledgeToolbar {
  display: flex;
  align-items: center;
  gap: 8px;
}
.ksToolbarBtn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 6px;
  background: var(--bg-secondary);
  cursor: pointer;
  font-size: 0.82em;
  color: var(--text-secondary);
}
.ksToolbarBtn:hover { border-color: var(--accent-color); color: var(--accent-color); }
.ksToolbarBtn.active { border-color: var(--accent-color); color: var(--accent-color); background: rgba(var(--accent-rgb), 0.06); }
.docCountBadge {
  background: rgba(var(--accent-rgb), 0.15);
  padding: 1px 6px;
  border-radius: 10px;
  font-size: 0.78em;
  margin-left: 2px;
}

/* ── Task type selector (inline in button row) ───────────────── */

.ksTaskTypeSelect {
  height: 34px;
  padding: 0 8px;
  font-size: 0.85em;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 6px;
  background: var(--bg-secondary, #1e1e2e);
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
}
.ksTaskTypeSelect:hover {
  border-color: var(--accent-color);
}
.ksTaskTypeSelect:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.15);
}

/* ── Knowledge chat content wrapper ───────────────────────────── */

.ksChatContainer {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
}

/* ── Full-page Document Browser ──────────────────────────────── */

.ksDocBrowser {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 16px 20px;
}

.ksDocBrowserHeader {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-shrink: 0;
}
.ksDocBrowserHeader h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}
.ksDocBackBtn {
  background: none;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 6px;
  padding: 4px 10px;
  cursor: pointer;
  font-size: 0.82em;
  color: var(--text-secondary);
}
.ksDocBackBtn:hover { border-color: var(--accent-color); color: var(--accent-color); }

.ksDocHeaderActions {
  margin-left: auto;
  display: flex;
  gap: 8px;
}
.ksDocActionBtn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 6px;
  background: var(--bg-secondary);
  cursor: pointer;
  font-size: 0.82em;
  color: var(--text-primary);
  white-space: nowrap;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.ksDocActionBtn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.04);
}
.ksDocActionBtn svg { flex-shrink: 0; }

/* ── Stats bar ── */
.ksDocStatsBar {
  display: flex;
  gap: 16px;
  padding: 8px 0;
  font-size: 0.82em;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(var(--border-rgb), 0.2);
  margin-bottom: 8px;
  flex-shrink: 0;
}
.ksDocStat { display: flex; align-items: center; gap: 4px; }
.ksDocStatSep { color: var(--text-tertiary); margin: 0 2px; }
.ksDocStatVal { font-weight: 600; color: var(--text-primary); }

/* ── Repository chip bar ── */
.ksRepoBar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  margin-bottom: 6px;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.ksRepoBarLabel {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78em;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.4px;
  margin-right: 4px;
  white-space: nowrap;
}
.ksRepoBarLabel svg { opacity: 0.7; }
.ksRepoChip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 16px;
  background: transparent;
  cursor: pointer;
  font-size: 0.82em;
  color: var(--text-primary);
  transition: all 0.15s;
  white-space: nowrap;
}
.ksRepoChip:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.06);
}
.ksRepoChip.active {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background: rgba(var(--accent-rgb), 0.12);
  font-weight: 600;
}
.ksRepoChipCount {
  font-size: 0.85em;
  opacity: 0.7;
  font-weight: 400;
}
.ksRepoChip.active .ksRepoChipCount { opacity: 0.9; }

/* ── Filter bar ── */
.ksDocFilterBar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  margin-bottom: 10px;
  flex-shrink: 0;
  background: var(--bg-secondary, #1a1a2e);
  border-radius: 10px;
  border: 1px solid rgba(var(--accent-rgb, 99,102,241), 0.18);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
.ksDocSearchWrap {
  position: relative;
  flex: 1;
  min-width: 0;
}
.ksSearchIcon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px; height: 16px;
  color: var(--text-secondary);
  pointer-events: none;
  opacity: 0.7;
}
.ksDocSearchWrap input[type="text"] {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 30px 10px 36px;
  border: 1px solid rgba(var(--border-rgb), 0.45);
  border-radius: 8px;
  font-size: 0.9em;
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}
.ksDocSearchWrap input[type="text"]:focus {
  border-color: var(--accent-color);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.08), 0 0 0 3px rgba(var(--accent-rgb, 99,102,241), 0.2);
}
.ksDocSearchWrap input[type="text"]::placeholder { color: var(--text-tertiary); }
.ksSearchClear {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 1.15rem;
  padding: 2px 5px;
  line-height: 1;
  border-radius: 3px;
}
.ksSearchClear:hover { color: var(--text-primary); background: rgba(var(--border-rgb), 0.15); }
.ksDocFilterBar select {
  padding: 5px 8px;
  border: 1px solid rgba(var(--border-rgb), 0.3);
  border-radius: 6px;
  font-size: 0.82em;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
}
.ksDocFilterCount {
  font-size: 0.78em;
  color: var(--text-tertiary);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Table ── */
.ksDocTable {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  background: var(--bg-secondary);
  border-radius: 8px;
  overflow: hidden;
}
.ksDocTable th,
.ksDocTable td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid rgba(var(--border-rgb), 0.15);
  color: var(--text-primary);
}
.ksDocTable th {
  background: rgba(var(--border-rgb), 0.08);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-secondary);
  position: sticky;
  top: 0;
  z-index: 2;
}
.ksDocTable th.sortable-th {
  cursor: pointer;
  user-select: none;
}
.ksDocTable th.sortable-th:hover { color: var(--accent-color); }
.ksDocTable th.sortable-th.sort-active { color: var(--accent-color); }
.ksDocTable tr:last-child td { border-bottom: none; }
.ksDocTable tr:hover { background: rgba(var(--accent-rgb), 0.03); }
.ksDocTable tr.batch-row-selected { background: rgba(var(--accent-rgb), 0.07) !important; }

/* checkbox column */
.ksDocTable .doc-batch-cb {
  width: 15px;
  height: 15px;
  cursor: pointer;
  accent-color: var(--accent-color);
}

/* name cell */
.ksDocTable .docNameCell {
  font-weight: 500;
  color: var(--text-primary);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ksDocTable .docNameCell .docFileIcon { margin-right: 6px; font-size: 0.9em; }

/* repository cell */
.ksDocTable .docRepoCell {
  font-size: 0.88em;
  color: var(--text-primary);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  opacity: 0.85;
}

/* search snippet under document name */
.ksDocSnippet {
  font-size: 0.78em;
  font-weight: 400;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
  font-style: italic;
}

/* status badges */
.docStatusBadge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.78em;
  font-weight: 500;
}
.docStatusBadge.indexed { background: rgba(34,197,94,0.12); color: #22c55e; }
.docStatusBadge.processing { background: rgba(234,179,8,0.12); color: #eab308; }
.docStatusBadge.error { background: rgba(239,68,68,0.12); color: #ef4444; }
.docStatusBadge.pending { background: rgba(var(--border-rgb),0.15); color: var(--text-tertiary); }

/* category badge */
.docCategoryBadge {
  font-size: 0.85em;
  color: var(--text-primary);
  opacity: 0.85;
}

/* row actions */
.ksDocRowActions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.15s;
}
.ksDocTable tr:hover .ksDocRowActions { opacity: 1; }
.ksDocRowActions button {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-tertiary);
  font-size: 0.85em;
  padding: 2px 5px;
  border-radius: 4px;
}
.ksDocRowActions button:hover { color: var(--accent-color); background: rgba(var(--accent-rgb), 0.08); }
.ksDocRowActions button.danger:hover { color: #ef4444; background: rgba(239,68,68,0.08); }

/* ── Workspace group header ── */
.ksDocGroupRow td {
  background: rgba(var(--border-rgb), 0.04);
  padding: 6px 12px;
  font-size: 0.82em;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 1px solid rgba(var(--border-rgb), 0.15);
}
.ksDocGroupRow:hover td { background: rgba(var(--border-rgb), 0.08); }
.ksDocGroupRow .groupToggle {
  display: inline-block;
  width: 14px;
  transition: transform 0.15s;
  font-size: 0.75em;
}
.ksDocGroupRow.collapsed .groupToggle { transform: rotate(-90deg); }
.ksDocGroupRow.collapsed ~ .ksDocDataRow { display: none; }

/* ── Expanded row detail ── */
.ksDocExpandedRow td {
  padding: 10px 16px 10px 48px;
  background: rgba(var(--accent-rgb), 0.02);
  font-size: 0.82em;
  color: var(--text-secondary);
  line-height: 1.6;
}
.ksDocExpandedRow .docDetailGrid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
}
.ksDocExpandedRow .docDetailLabel {
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  font-size: 0.78em;
  letter-spacing: 0.3px;
}

/* ── Batch action bar ── */
.ksDocBatchBar {
  position: sticky;
  bottom: 0;
  z-index: 10;
  padding: 10px 16px;
  border-top: 1px solid var(--accent-color);
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(var(--accent-rgb), 0.05);
  border-radius: 0 0 8px 8px;
  animation: batchBarSlideUp 0.15s ease-out;
}
.ksDocBatchBar .batch-bar-count {
  font-size: 0.82em;
  color: var(--text-tertiary);
  margin-right: auto;
}
.ksDocBatchBar .btn-batch-danger {
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.25);
  color: #ef4444;
  padding: 5px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
}
.ksDocBatchBar .btn-batch-danger:hover { background: rgba(239,68,68,0.22); }
.ksDocBatchBar .btn-batch-clear {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 5px 8px;
}
.ksDocBatchBar .btn-batch-clear:hover { color: var(--text-primary); }

/* ── Empty state ── */
.ksDocEmpty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--text-tertiary);
  font-size: 0.9em;
  text-align: center;
  gap: 12px;
}
.ksDocEmpty .emptyIcon { font-size: 2em; }

/* ── KS sidebar: make delete button more visible ─────────────── */

[data-mode="knowledge"] .chatActionDelete { opacity: 0.7; }
[data-mode="knowledge"] .chatItem:hover .chatActionDelete { opacity: 1; }

/* ── Collapse behavior for KS-specific elements ─────────────── */

/* ── KS textarea — expand on multi-line input ─────────────────── */

#ksInput {
  min-height: 44px;
  max-height: min(45vh, 360px);
  transition: height 0.1s ease;
}

.msg-collapsed .knowledgeRetrieval,
.msg-collapsed .ksSection,
.msg-collapsed .textContent { display: none; }