/*
 * Knowledge Base (canvas board 13): the list, New knowledge base, one
 * knowledge base, and their pop-ups. In the Agents list's look (ag-* parts,
 * --ag-* tokens); the search, filter and table are the Conversations tab's
 * (cv-*). Prefix kb-.
 */

.kb-page {
  gap: 22px;
}

/* ---------- breadcrumb ---------- */
.kb-crumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: -12px;
  font-size: 13px;
  color: var(--ag-muted);
}
.kb-crumbs a {
  color: var(--ag-muted);
  border-radius: 4px;
  text-underline-offset: 3px;
}
.kb-crumbs a:hover {
  color: var(--ag-ink);
  text-decoration: underline;
}
.kb-crumbs [aria-current] {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ag-ink-2);
}

/* ---------- the white card holding the search and table ---------- */
.kb-card {
  gap: 0;
  padding: 20px 24px 12px;
}
.kb-card .cv-bar {
  margin-top: 0;
}
.kb-frame {
  margin-top: 0;
}
.kb-table td {
  padding-block: 12px;
}
.kb-srow:last-child td {
  border-bottom-color: transparent;
}
.kb-namecell {
  min-width: 220px;
}
.kb-name {
  display: block;
  max-width: 420px;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
  color: var(--ag-ink);
  border-radius: 4px;
  text-underline-offset: 4px;
}
a.kb-name:hover {
  text-decoration: underline;
}
.kb-sub {
  display: block;
  margin-top: 2px;
  font-size: 12.5px;
  color: var(--ag-muted);
}
.kb-muted {
  color: var(--ag-muted);
}
.kb-who {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ag-ink-2);
}
.kb-actcell,
.cv-table td.kb-actcell {
  width: 1%;
  padding-inline: 4px 8px;
  text-align: end;
}
.kb-more {
  width: 34px;
  height: 34px;
  display: inline-grid;
}

/* status: the word in ink, the colour on its dot */
.kb-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13.5px;
  color: var(--ag-ink-2);
  white-space: nowrap;
}
.kb-status__dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--ag-live);
}
.kb-status--reading .kb-status__dot {
  background: var(--ag-test);
  animation: kb-pulse 1.4s ease-in-out infinite;
}
.kb-status--failed .kb-status__dot {
  background: var(--ag-red);
}
.kb-status--empty .kb-status__dot {
  background: var(--ag-dot);
}
@keyframes kb-pulse {
  50% {
    opacity: 0.35;
  }
}
@media (prefers-reduced-motion: reduce) {
  .kb-status--reading .kb-status__dot {
    animation: none;
  }
}

/* ---------- the list: status tabs and search, then a grid of light cards ---------- */
.kb-bar {
  margin-bottom: -6px;
}
.kb-search {
  flex: 0 1 280px;
}
.kb-tabcount {
  margin-inline-start: 7px;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
  opacity: 0.55;
}
.kb-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.kb-grid__none {
  grid-column: 1 / -1;
}
.kb-kcard {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding-block: 18px 14px;
  padding-inline: 20px 18px;
  border-radius: 18px;
  background: var(--ag-card);
  border: 1px solid var(--ag-line);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.kb-kcard:hover {
  border-color: var(--ag-btn-line);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
}
.kb-kcard__head {
  display: flex;
  align-items: center;
  margin-block: 0 14px;
  margin-inline: 0 -6px;
}
.kb-kcard__icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--ag-well);
  border: 1px solid var(--ag-well-line);
  color: var(--ag-ink-2);
}
.kb-kcard__name {
  margin: 0;
  min-width: 0;
  font-family: var(--font-ui);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.012em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.kb-kcard__name a {
  color: var(--ag-ink);
  border-radius: 4px;
  text-underline-offset: 4px;
}
.kb-kcard__name a:hover {
  text-decoration: underline;
}
.kb-kcard__types {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 24px;
  margin-top: 10px;
}
.kb-type {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 24px;
  padding: 0 8px;
  border-radius: 7px;
  background: var(--ag-set);
  border: 1px solid var(--ag-set-line);
  font-size: 12px;
  font-weight: 500;
  color: var(--ag-ink-2);
}
.kb-type svg {
  color: var(--ag-muted);
}
.kb-kcard__none {
  font-size: 12.5px;
  line-height: 24px;
  color: var(--ag-muted);
}
/* while reading, the bar runs along the footer's hairline, so cards keep one height */
.kb-kbar {
  position: absolute;
  top: -1px;
  inset-inline: 0;
  display: block;
  height: 2px;
  border-radius: 999px;
  background: var(--ag-track);
  overflow: hidden;
}
.kb-kbar__fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--ag-test);
  transition: width 0.4s ease;
}
.kb-kcard__foot {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--ag-rule);
  font-size: 13px;
  white-space: nowrap;
}
.kb-kcard__foot .kb-status {
  font-size: 13px;
}
.kb-kcard__count {
  color: var(--ag-ink-2);
  font-variant-numeric: tabular-nums;
}
.kb-kcard__dot {
  color: var(--ag-faint);
}
.kb-kcard__who {
  display: inline-flex;
  margin-inline-start: 4px;
  border-radius: 999px;
}
@media (max-width: 1099px) {
  .kb-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 639px) {
  .kb-grid {
    grid-template-columns: 1fr;
  }
  .kb-search {
    flex: 1 1 100%;
    order: -1;
  }
  .kb-bar > .ag-card__grow {
    display: none;
  }
}

/* ---------- none yet ---------- */
.kb-empty {
  align-items: center;
  gap: 8px;
  padding: 56px 24px;
  text-align: center;
}
.kb-empty__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 6px;
  border-radius: 12px;
  background: var(--ag-well);
  border: 1px solid var(--ag-well-line);
  color: var(--ag-ink-2);
}
.kb-empty__title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.kb-empty__text {
  max-width: 420px;
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ag-muted);
}
.kb-none {
  padding: 40px 12px 36px;
  text-align: center;
}
.kb-none__title {
  margin: 0;
  font-size: 15px;
  font-weight: 500;
}
.kb-none__text {
  margin: 4px 0 0;
  font-size: 13.5px;
  color: var(--ag-muted);
}

/* ---------- notes: white, a hairline, a muted mark (no tint) ---------- */
.kb-note {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding-block: 6px;
  padding-inline: 14px 6px;
  border-radius: 12px;
  background: var(--ag-card);
  border: 1px solid var(--ag-line);
}
.kb-note--plain {
  padding-inline-end: 14px;
}
.kb-note__icon {
  flex: none;
  display: grid;
  place-items: center;
  color: var(--ag-muted);
}
.kb-note__text {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: 13.5px;
  line-height: 20px;
  color: var(--ag-ink-2);
}

/* ---------- one knowledge base: head, used by ---------- */
.kb-head-actions {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.kb-addsrc {
  gap: 6px;
}
[data-users] {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.kb-used {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
}
.kb-used__label {
  color: var(--ag-muted);
}
.kb-agent {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 28px;
  padding: 0 10px;
  border-radius: 8px;
  background: var(--ag-set);
  border: 1px solid var(--ag-set-line);
  color: var(--ag-ink);
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.kb-agent svg {
  color: var(--ag-muted);
}
.kb-agent:hover {
  background: var(--ag-hover);
  border-color: var(--ag-btn-line);
}
.kb-srcname {
  display: flex;
  align-items: center;
  gap: 12px;
}
.kb-srcname__text {
  min-width: 0;
}
.kb-sub--failed {
  color: var(--ag-ink-2);
}
.kb-retry {
  font-size: inherit;
  font-weight: 500;
  color: var(--ag-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  border-radius: 4px;
}
.kb-retry:hover {
  text-decoration-thickness: 2px;
}

/* ---------- New knowledge base: one white card, hairline between sections ---------- */
.kb-form {
  gap: 0;
  padding: 0;
}
.kb-sec {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 24px 24px;
}
.kb-sec + .kb-sec {
  border-top: 1px solid var(--ag-line);
}
.kb-sec__title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ag-ink);
}
.kb-sec .input {
  width: 100%;
  max-width: 560px;
}
/* an error keeps its red stroke while the field has focus */
.kb-sec .input[aria-invalid="true"],
.kb-dialog .input[aria-invalid="true"],
.kb-dialog .textarea[aria-invalid="true"] {
  border-color: var(--ag-red);
}
.kb-sec .input[aria-invalid="true"]:focus-visible,
.kb-dialog [aria-invalid="true"]:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ag-red) 14%, transparent);
}
.kb-error {
  margin: 0;
  font-size: 12.5px;
  color: var(--ag-red);
}
.kb-sec[data-invalid] .kb-tile {
  border-color: var(--ag-red);
}

.kb-tiles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.kb-tile {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--ag-card);
  border: 1px solid var(--ag-btn-line);
  text-align: start;
  color: var(--ag-ink);
  transition: background 0.15s ease, border-color 0.15s ease;
}
.kb-tile:hover {
  background: var(--ag-hover);
}
.kb-tile[data-drop] {
  border-color: var(--ag-ink);
  border-style: dashed;
  background: var(--ag-hover);
}
.kb-tile__icon {
  margin-bottom: 8px;
  color: var(--ag-ink-2);
}
.kb-tile__title {
  font-size: 14px;
  font-weight: 500;
}
.kb-tile__sub {
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--ag-muted);
}

.kb-added__label {
  margin: 8px 0 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--ag-muted);
}
.kb-added {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}
.kb-src {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding-block: 10px;
  padding-inline: 12px 10px;
  border-radius: 12px;
  border: 1px solid var(--ag-line);
}
.kb-src__icon {
  width: 32px;
  height: 32px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: var(--ag-well);
  border: 1px solid var(--ag-well-line);
  color: var(--ag-ink-2);
}
.kb-src__text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.kb-src__name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 500;
}
.kb-src__meta {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12.5px;
  color: var(--ag-muted);
}
.kb-src__x {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  color: var(--ag-muted);
}
.kb-src__x:hover {
  color: var(--ag-ink);
}

/* Cancel and Create stay at the bottom of the window, a hairline above */
.kb-foot {
  position: sticky;
  bottom: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: -6px;
  padding: 14px 0;
  border-top: 1px solid var(--ag-line);
  background: color-mix(in srgb, var(--ag-page) 92%, transparent);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.kb-foot__note {
  flex: 1;
  min-width: 0;
  font-size: 13px;
  color: var(--ag-muted);
}

/* ---------- pop-ups: Add website link, Add text, Rename ---------- */
.kb-dialog {
  max-width: 480px;
  gap: 18px;
  padding: 22px 24px 24px;
  font-family: var(--font-ui);
  line-height: normal;
  color: var(--ag-ink);
  background: var(--ag-card);
}
.kb-dialog__head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.kb-dialog__title {
  flex: 1;
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.kb-dialog__x {
  width: 32px;
  height: 32px;
  flex: none;
  display: grid;
  place-items: center;
  margin-inline-end: -6px;
  border-radius: 9px;
  color: var(--ag-muted);
}
.kb-dialog__x:hover {
  background: var(--ag-hover);
  color: var(--ag-ink);
}
.kb-dialog__body {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.kb-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.kb-label {
  margin: 0;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ag-ink);
}
.kb-dialog .input,
.kb-dialog .textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--ag-btn-line);
  background: var(--ag-card);
  color: var(--ag-ink);
  font-size: 14px;
}
.kb-dialog .input {
  height: 42px;
}
.kb-textarea {
  min-height: 160px;
  line-height: 1.55;
  resize: vertical;
}
.kb-dialog .input::placeholder,
.kb-dialog .textarea::placeholder {
  color: var(--ag-faint);
}
.kb-dialog .input:focus-visible,
.kb-dialog .textarea:focus-visible {
  border-color: var(--ag-ink);
  box-shadow: 0 0 0 3px var(--ag-hover);
}
.kb-dialog [aria-invalid="true"] {
  border-color: var(--ag-red);
}
.kb-count {
  margin: -2px 0 0;
  font-size: 12.5px;
  color: var(--ag-muted);
  font-variant-numeric: tabular-nums;
}
.kb-choices {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.kb-choice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--ag-btn-line);
  background: var(--ag-card);
  text-align: start;
  color: var(--ag-ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.kb-choice:hover {
  background: var(--ag-hover);
}
.kb-choice[aria-checked="true"] {
  border-color: var(--ag-ink);
  box-shadow: 0 0 0 3px var(--ag-hover);
  background: var(--ag-card);
}
.kb-choice .radio {
  margin-top: 2px;
}
.kb-choice[aria-checked="true"] .radio {
  border-color: var(--ag-dark);
  background: var(--ag-dark);
}
.kb-choice[aria-checked="true"] .radio::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ag-dark-ink);
}
.kb-choice__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.kb-choice__title {
  font-size: 14px;
  font-weight: 500;
}
.kb-choice__sub {
  font-size: 12.5px;
  color: var(--ag-muted);
}
.kb-dialog__foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}

/* ---------- narrow screens ---------- */
@media (max-width: 767px) {
  .kb-page {
    padding-top: 16px;
  }
  .kb-card {
    padding: 16px 16px 8px;
  }
  .kb-sec {
    padding: 18px 16px 20px;
  }
  .kb-head-actions .kb-addsrc {
    padding: 0 12px;
  }
}
@media (max-width: 639px) {
  .kb-tiles {
    grid-template-columns: 1fr;
  }
  .kb-tile {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    column-gap: 10px;
  }
  .kb-tile__icon {
    margin: 0;
  }
  .kb-tile__sub {
    flex-basis: 100%;
    padding-inline-start: 26px;
  }
  .kb-head-actions {
    align-self: flex-start;
  }
  .kb-foot__note {
    display: none;
  }
  .kb-foot {
    justify-content: flex-end;
  }
  .kb-dialog__foot {
    flex-direction: column-reverse;
  }
  .kb-dialog__foot .ag-btn {
    width: 100%;
  }
}

/* ---------- one knowledge base in a right-side drawer ---------- */
.kb-drawer,
.kb-add {
  max-width: 600px;
}
.kb-drawer .drawer__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding-block: 22px 18px;
  padding-inline: 28px 24px;
  border-bottom: 0;
}
.kb-drawer__text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-top: 4px;
}
.kb-drawer .drawer__title {
  padding-inline-end: 0;
  font-size: 20px;
  line-height: 1.3;
  overflow-wrap: anywhere;
}
.kb-drawer__sub {
  margin: 0;
  font-size: 13.5px;
  color: var(--ag-muted);
}
/* Add · ⋮ · Close: three white boxes of one height on the end side */
.kb-drawer__actions {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.kb-drawer__actions .ag-btn,
.kb-drawer__actions .ag-icon-btn {
  height: 38px;
}
.kb-addsrc {
  gap: 6px;
  padding-block: 0;
  padding-inline: 12px 14px;
}
.ap-skin .kb-drawer .kb-drawer__close,
.kb-drawer .kb-drawer__close {
  position: static;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--ag-btn-line);
  background: var(--ag-card);
  color: var(--ag-ink);
  opacity: 1;
}
.kb-drawer .kb-drawer__close:hover {
  background: var(--ag-hover);
}
.kb-drawer__tabs {
  flex: none;
  padding: 0 28px 14px;
  border-bottom: 1px solid var(--ag-line);
}
.kb-drawer__tabs .ag-tab {
  height: 34px;
  padding: 0 14px;
  font-size: 13.5px;
}
.kb-drawer__body {
  padding: 22px 28px 28px;
}
.kb-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.kb-added--drawer {
  margin: 0;
  gap: 10px;
}
.kb-src--drawer {
  gap: 14px;
  padding-block: 12px;
  padding-inline: 14px 8px;
}
.kb-src--drawer .kb-status {
  font-size: 13px;
}
.kb-src__meta--failed {
  color: var(--ag-ink-2);
  white-space: normal;
}
.kb-none__icon {
  margin: 0 auto 10px;
}
.kb-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ag-ink);
  text-decoration: underline;
  text-decoration-color: var(--ag-dot);
  text-underline-offset: 3px;
}
.kb-link:hover {
  text-decoration-color: currentColor;
}

/* Used by: a very small take on the Agents page card */
.kb-ags {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.kb-ag {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-block: 14px;
  padding-inline: 16px 14px;
  border-radius: 14px;
  background: var(--ag-card);
  border: 1px solid var(--ag-line);
  color: var(--ag-ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.kb-ag:hover {
  border-color: var(--ag-btn-line);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
}
.kb-ag__face.ag-face {
  width: 40px;
  height: 40px;
  flex: none;
}
.kb-ag__text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.kb-ag__top {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.kb-ag__name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.kb-ag .ag-chip {
  height: 22px;
  padding: 0 8px;
  font-size: 12px;
}
.kb-ag__meta {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12.5px;
  color: var(--ag-muted);
}
.kb-ag__go {
  flex: none;
  color: var(--ag-faint);
  transition: color 0.15s ease, transform 0.15s ease;
}
.kb-ag:hover .kb-ag__go {
  color: var(--ag-ink);
  transform: translateX(2px);
}
[dir="rtl"] .kb-ag:hover .kb-ag__go {
  transform: translateX(-2px);
}

/* a drawer or pop-up opened from a drawer sits above it, its scrim too */
.drawer ~ .overlay {
  z-index: 72;
}
.drawer ~ .overlay ~ .drawer,
.drawer ~ .overlay ~ .dialog,
.drawer ~ .overlay ~ .modal {
  z-index: 73;
}

/* ---------- Add source drawer ---------- */
.kb-add .drawer__body {
  gap: 24px;
  padding: 24px 28px 28px;
  font-family: var(--font-ui);
  line-height: normal;
  color: var(--ag-ink);
}
.kb-modes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
  padding: 4px;
  border-radius: 12px;
  background: var(--ag-hover);
}
.kb-mode {
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 10px;
  border-radius: 9px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ag-muted);
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}
.kb-mode:hover {
  color: var(--ag-ink);
}
.kb-mode[aria-checked="true"] {
  background: var(--ag-card);
  color: var(--ag-ink);
  box-shadow: 0 0 0 1px var(--ag-line), 0 1px 3px rgba(0, 0, 0, 0.06);
}
.kb-addpanel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.kb-add .kb-field {
  gap: 8px;
}
.kb-add .input,
.kb-add .textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--ag-btn-line);
  background: var(--ag-card);
  color: var(--ag-ink);
  font-size: 14px;
}
.kb-add .input {
  height: 42px;
}
.kb-add .textarea {
  min-height: 200px;
  line-height: 1.55;
  resize: vertical;
}
.kb-add .input::placeholder,
.kb-add .textarea::placeholder {
  color: var(--ag-faint);
}
.kb-add .input:focus-visible,
.kb-add .textarea:focus-visible {
  border-color: var(--ag-ink);
  box-shadow: 0 0 0 3px var(--ag-hover);
}
.kb-add [aria-invalid="true"],
.kb-add [aria-invalid="true"]:focus-visible {
  border-color: var(--ag-red);
}
.kb-help {
  margin: 0;
  font-size: 12.5px;
  color: var(--ag-muted);
}
.kb-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 32px 20px;
  border-radius: 14px;
  border: 1.5px dashed var(--ag-btn-line);
  background: var(--ag-well);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.kb-drop:hover,
.kb-drop[data-drop] {
  border-color: var(--ag-faint);
  background: var(--ag-hover);
}
.kb-drop[data-drop] {
  border-color: var(--ag-ink);
}
.kb-drop__icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  margin-bottom: 6px;
  border-radius: 12px;
  background: var(--ag-card);
  border: 1px solid var(--ag-line);
  color: var(--ag-ink-2);
}
.kb-drop__title {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
}
.kb-drop__pick {
  font: inherit;
  color: var(--ag-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  border-radius: 4px;
}
.kb-drop__sub {
  margin: 0;
  font-size: 12.5px;
  color: var(--ag-muted);
}
.kb-picked {
  margin: 0;
}
.kb-src--bad .kb-src__icon {
  color: var(--ag-red);
}
.kb-add .drawer__foot .btn--primary:disabled {
  opacity: 0.4;
}
@media (max-width: 639px) {
  .kb-drawer .drawer__head,
  .kb-add .drawer__body,
  .kb-drawer__body {
    padding-inline: 18px;
  }
  .kb-drawer__tabs {
    padding-inline: 18px;
  }
  .kb-mode span {
    font-size: 12.5px;
  }
  .kb-mode svg {
    display: none;
  }
}

/* Website link: one row per link, Remove on each when there are several */
.kb-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.kb-linkrow {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.kb-linkrow__in {
  display: flex;
  align-items: center;
  gap: 8px;
}
.kb-linkrow__in .input {
  flex: 1;
  min-width: 0;
}
.kb-linkrow__x {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  color: var(--ag-muted);
}
.kb-linkrow__x:hover {
  color: var(--ag-ink);
}
.kb-morelink {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  margin-top: 2px;
  padding-block: 0;
  padding-inline: 8px 10px;
  margin-inline-start: -8px;
  border-radius: 9px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ag-ink);
  transition: background 0.15s ease;
}
.kb-add .kb-instr {
  min-height: 104px;
}
.kb-morelink:hover {
  background: var(--ag-hover);
}

/* ---------- Create knowledge base drawer ---------- */
.kb-create {
  max-width: 600px;
}
.kb-create .drawer__body {
  gap: 26px;
  padding: 24px 28px 28px;
  font-family: var(--font-ui);
  line-height: normal;
  color: var(--ag-ink);
}
.kb-create .input {
  width: 100%;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--ag-btn-line);
  background: var(--ag-card);
  color: var(--ag-ink);
  font-size: 14px;
}
.kb-create .input::placeholder {
  color: var(--ag-faint);
}
.kb-create .input:focus-visible {
  border-color: var(--ag-ink);
  box-shadow: 0 0 0 3px var(--ag-hover);
}
.kb-create [aria-invalid="true"],
.kb-create [aria-invalid="true"]:focus-visible {
  border-color: var(--ag-red);
}
.kb-create__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 2px;
}
.kb-create__head .ag-btn {
  height: 36px;
}
.kb-create__empty {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 30px 20px;
  border-radius: 14px;
  border: 1.5px dashed var(--ag-btn-line);
  background: var(--ag-well);
  text-align: center;
  color: var(--ag-ink);
  transition: border-color 0.15s ease, background 0.15s ease;
}
.kb-create__empty:hover {
  border-color: var(--ag-faint);
  background: var(--ag-hover);
}
.kb-create[data-drop] .kb-create__empty {
  border-color: var(--ag-ink);
}
.kb-create [data-field="sources"][data-invalid] .kb-create__empty {
  border-color: var(--ag-red);
}

/* ---------- a file uploading: a thin bar and "1.2 MB of 2.4 MB · 3 s left" ---------- */
.kb-status--uploading .kb-status__dot {
  background: var(--ag-i-blue);
  animation: kb-pulse 1.4s ease-in-out infinite;
}
.kb-status--uploading {
  font-variant-numeric: tabular-nums;
  min-width: 108px;
}
.kb-up {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-top: 3px;
}
.kb-up__bar {
  display: block;
  width: 100%;
  max-width: 260px;
  height: 4px;
  border-radius: 999px;
  background: var(--ag-track);
  overflow: hidden;
}
.kb-up__fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--ag-ink);
  transition: width 0.25s linear;
}
.kb-up__text {
  font-size: 12.5px;
  color: var(--ag-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
@media (prefers-reduced-motion: reduce) {
  .kb-status--uploading .kb-status__dot {
    animation: none;
  }
  .kb-up__fill {
    transition: none;
  }
}

/* ---------- a source row that opens it (drawer, Create) ---------- */
.kb-src--open {
  padding-block: 0;
  padding-inline: 0 6px;
  gap: 4px;
}
.kb-src__open {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  padding-block: 12px;
  padding-inline: 14px 10px;
  border-radius: 12px;
  text-align: start;
  color: var(--ag-ink);
  transition: background 0.15s ease;
}
.kb-src--open:hover {
  border-color: var(--ag-btn-line);
}
.kb-src__open:hover {
  background: var(--ag-hover);
}
.kb-src__go {
  flex: none;
  display: grid;
  place-items: center;
  color: var(--ag-faint);
  opacity: 0;
  transition: opacity 0.15s ease, color 0.15s ease;
}
.kb-src__open:hover .kb-src__go,
.kb-src__open:focus-visible .kb-src__go {
  opacity: 1;
  color: var(--ag-ink);
}

/* ---------- Add source: uploading files, checking links ---------- */
.kb-src__icon--done {
  background: var(--ag-card);
  border-color: var(--ag-btn-line);
  color: var(--ag-live);
}
.kb-src--up .kb-src__icon {
  color: var(--ag-ink-2);
}
.kb-src__pct {
  flex: none;
  min-width: 40px;
  text-align: end;
  font-size: 13px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--ag-ink-2);
}
.kb-checking {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-size: 12.5px;
  color: var(--ag-muted);
}
.kb-spin {
  width: 12px;
  height: 12px;
  flex: none;
  border-radius: 50%;
  border: 2px solid var(--ag-track);
  border-top-color: var(--ag-ink-2);
  animation: kb-spin 0.8s linear infinite;
}
@keyframes kb-spin {
  to {
    transform: rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .kb-spin {
    animation-duration: 2.4s;
  }
}

/* ---------- the source preview window (kb-source.html) ---------- */
.kbv-body {
  background: var(--ag-page);
}
.kbv {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-ui);
  line-height: normal;
  color: var(--ag-ink);
}
.kbv-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 24px;
  background: var(--ag-card);
  border-bottom: 1px solid var(--ag-line);
}
.kbv-head__icon {
  width: 40px;
  height: 40px;
}
.kbv-head__text {
  flex: 1;
  min-width: 0;
}
.kbv-title {
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.kbv-meta {
  margin: 3px 0 0;
  font-size: 13px;
  color: var(--ag-muted);
}
.kbv-kb {
  color: var(--ag-ink-2);
}
.kbv-actions {
  flex: none;
  display: flex;
  gap: 8px;
}
.kbv-download {
  gap: 6px;
}
.kbv-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 28px 24px 48px;
}
.kbv-doc,
.kbv-pre,
.kbv-note {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  border-radius: 16px;
  background: var(--ag-card);
  border: 1px solid var(--ag-line);
}
.kbv-doc {
  padding: 44px 52px 52px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ag-ink-2);
}
.kbv-doc h2 {
  margin: 0 0 18px;
  font-size: 22px;
  line-height: 1.3;
  font-weight: 600;
  color: var(--ag-ink);
}
.kbv-doc h3 {
  margin: 26px 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ag-ink);
}
.kbv-doc p {
  margin: 0 0 12px;
  white-space: pre-wrap;
}
.kbv-doc ul {
  margin: 0 0 12px;
  padding-inline-start: 22px;
  list-style: disc;
}
.kbv-doc li {
  margin-bottom: 6px;
}
.kbv-pre {
  margin: 0 auto;
  padding: 28px 32px;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ag-ink-2);
  white-space: pre-wrap;
  word-break: break-word;
  direction: ltr;
  text-align: left;
}
.kbv-frame {
  flex: 1;
  width: 100%;
  min-height: calc(100svh - 160px);
  border: 1px solid var(--ag-line);
  border-radius: 12px;
  background: var(--ag-card);
}
.kbv-note {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 56px 24px;
  text-align: center;
}
.kbv-dl-big {
  margin-top: 4px;
}
.kbv-loading {
  height: 2px;
}
@media (max-width: 639px) {
  .kbv-head {
    padding: 12px 16px;
  }
  .kbv-main {
    padding: 16px 12px 32px;
  }
  .kbv-doc {
    padding: 24px 20px 28px;
  }
  .kbv-pre {
    padding: 18px 16px;
  }
}

/* Create: Name, then "Sources" above the three-way switch */
.kb-add .kb-add__srclabel {
  margin: 6px 0 -14px;
}
.kb-add #kba-src-e {
  margin-top: -12px;
}

/* made for an agent (5 Oct 2026): the agent's name, its draft is saved, and the way back */
.kb-for .kb-for__back {
  flex: none;
  height: 32px;
  gap: 6px;
  padding: 0 12px;
  font-size: 13px;
}