/* Tabler page header, card list, form sections and modal measurements. */
#view-knowledge :is(.kb-heading, .kb-editor-heading) { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
#view-knowledge .kb-heading h1 { flex: 1 1 240px; margin: 0; color: var(--heading); font-size: var(--font-title); font-weight: 600; letter-spacing: 0; line-height: 28px; }
#view-knowledge .kb-heading h1[tabindex="-1"]:focus { outline: none; }
#view-knowledge .kb-editor-heading { justify-content: space-between; min-height: 60px; margin: 0; padding: 20px; border-bottom: 1px solid var(--line); }
#view-knowledge h2 { margin: 0; color: var(--heading); font-size: 16px; font-weight: 500; line-height: 1.5; }
#view-knowledge h3 { margin: 0; color: var(--heading); font-size: 16px; font-weight: 500; line-height: 1.5; }
#view-knowledge .kb-stage { margin: 0 0 var(--section-gap); color: var(--muted); font-size: 14px; line-height: 1.4285714; }
#kbStatus { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.4285714; overflow-wrap: anywhere; }
#kbStatus:not(:empty) { margin-bottom: 16px; }
#view-knowledge .kb-panel { min-width: 0; padding: 0; margin-bottom: var(--section-gap); border: 1px solid var(--line); border-radius: var(--radius-panel); background: var(--surface); box-shadow: var(--shadow-card); }
#view-knowledge .kb-toolbar { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 20px; margin: 0; border-bottom: 1px solid var(--line); }
#view-knowledge .kb-toolbar input { flex: 1 1 280px; width: auto; max-width: 560px; }
#view-knowledge .kb-toolbar :is(select, .admin-select-trigger) { width: 144px; }
#kbSeed { margin-left: auto; }
#kbItems { padding: 0; }
#kbItems > p { margin: 0; padding: 48px 20px; color: var(--muted); font-size: 14px; line-height: 1.4285714; text-align: center; }
#view-knowledge .kb-row { display: grid; grid-template-columns: minmax(0, 1fr) 100px auto; align-items: center; gap: 20px; padding: 16px 20px; border-bottom: 1px solid var(--line); }
#view-knowledge .kb-row:last-child { border-bottom: 0; }
#view-knowledge .kb-row-main { min-width: 0; }
#view-knowledge .kb-row strong { display: block; margin-bottom: 4px; color: var(--heading); font-size: 14px; font-weight: 500; line-height: 1.4285714; overflow-wrap: anywhere; }
#view-knowledge .kb-row p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
#view-knowledge .kb-badge { display: inline-flex; align-items: center; justify-self: start; padding: 3px 6px; border: 1px solid transparent; border-radius: var(--control-radius); background: var(--surface-2); color: var(--muted); font-size: 12px; font-weight: 500; line-height: 1; letter-spacing: .04em; white-space: nowrap; }
#view-knowledge .kb-row > button { min-width: 64px; }
#view-knowledge .kb-pagination { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 8px; padding: 20px; border-top: 1px solid var(--line); border-radius: 0 0 var(--radius-panel) var(--radius-panel); background: var(--surface-2); color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; }

#view-knowledge #kbEditor { padding: 0; overflow: visible; }
#view-knowledge #kbVersion { margin: 0; padding: 12px 20px; background: var(--surface-2); font-size: 12px; }
#kbForm { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .48fr); }
#view-knowledge .kb-section { display: grid; grid-template-columns: minmax(0, 1fr); align-content: start; gap: 16px; min-width: 0; padding: 20px; border-top: 1px solid var(--line); }
#view-knowledge .kb-section:nth-child(1) { grid-column: 1; grid-row: 1; }
#view-knowledge .kb-section:nth-child(2) { grid-column: 1; grid-row: 2; }
#view-knowledge .kb-section:nth-child(3) { grid-column: 2; grid-row: 1 / 3; border-left: 1px solid var(--line); }
#view-knowledge .kb-section:first-child { margin-top: 0; }
#view-knowledge .kb-section > h3 { grid-column: 1; grid-row: auto; padding-top: 0; }
#view-knowledge .kb-section > :not(h3) { grid-column: 1; min-width: 0; }
#view-knowledge .kb-grid { display: grid; grid-template-columns: minmax(120px, .65fr) minmax(0, 1.35fr); gap: 16px; }
#view-knowledge .kb-grid:not(.kb-two) > label:first-child { grid-column: 1 / -1; }
#view-knowledge .kb-two { grid-template-columns: minmax(0, 1fr); }
#view-knowledge label { display: flex; flex-direction: column; gap: 8px; min-width: 0; color: var(--text); font-size: 14px; font-weight: 500; line-height: 1.4285714; }
#view-knowledge :is(input, textarea) { width: 100%; min-width: 0; box-sizing: border-box; }
#view-knowledge textarea { padding: 12px; font-size: 14px; line-height: 1.7; resize: vertical; }
#kbBody { min-height: clamp(360px, 48dvh, 560px); }
#view-knowledge textarea[name="note"] { min-height: 180px; }
#view-knowledge .kb-actions { position: sticky; bottom: 0; z-index: 2; grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 16px 20px; border-top: 1px solid var(--line); border-radius: 0 0 var(--radius-panel) var(--radius-panel); background: var(--surface); box-shadow: 0 -4px 12px -10px var(--muted); }
#kbChunks { margin-left: auto; }
#kbDisable { margin-left: 8px; }
#view-knowledge [hidden] { display: none !important; }
#view-knowledge .kb-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }

/* Existing import, history, preview and search dialogs share Tabler modal spacing. */
.ui-dialog.kb-history { width: min(800px, calc(100vw - 40px)); max-height: calc(100dvh - 48px); padding: 24px; border-radius: var(--radius-panel); overflow: auto; overscroll-behavior: contain; scrollbar-width: thin; }
.kb-history h2 { margin: 0 0 16px; color: var(--heading); font-size: 16px; font-weight: 600; line-height: 1.5; }
.kb-history h3 { margin: 0 0 8px; color: var(--heading); font-size: 16px; font-weight: 600; line-height: 1.5; }
.kb-history p { margin: 16px 0; font-size: 14px; line-height: 1.4285714; white-space: pre-wrap; overflow-wrap: anywhere; }
.kb-history small { color: var(--muted); font-size: 12px; line-height: 1.4285714; }
.kb-history article { padding: 20px 0; border-top: 1px solid var(--line); }
.kb-history article:last-child { padding-bottom: 8px; }
.kb-history article > p:last-child { margin-bottom: 0; }
.kb-history [hidden] { display: none !important; }
.kb-history > button { margin: 4px 8px 4px 0; }
.kb-history[aria-label="知识版本记录"] > h2 { display: inline-block; width: calc(100% - 64px); vertical-align: middle; }
.kb-history[aria-label="知识版本记录"] > h2 + button { width: 64px; vertical-align: middle; margin: 0 0 16px; }
.kb-history > input[type="file"] { display: block; width: 100%; min-width: 0; margin: 20px 0 12px; padding: 0; border: 1px solid var(--line-strong); border-radius: var(--control-radius); background: var(--surface); color: var(--text); box-shadow: var(--shadow-input); font-size: 14px; }
.kb-history input::file-selector-button { min-height: var(--control-height); margin: -1px 12px -1px -1px; padding: 9px 12px; border: 1px solid var(--line-strong); border-radius: var(--control-radius) 0 0 var(--control-radius); background: var(--surface-2); color: var(--text); font: inherit; cursor: pointer; }
.kb-preview-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.kb-history > .kb-preview-heading:first-child { margin: -24px -24px 24px; padding: 24px; border-bottom: 1px solid var(--line); }
.kb-preview-heading h2 { margin: 0; }
.kb-chunks > .kb-preview-heading:not(:first-child) { justify-content: flex-start; margin: 24px 0 12px; }
.kb-chunks pre { margin: 16px 0 0; padding: 16px; border: 1px solid var(--line); border-radius: var(--control-radius); background: var(--surface-2); color: var(--text); font: inherit; font-size: 14px; line-height: 1.4285714; white-space: pre-wrap; overflow-wrap: anywhere; }
.kb-chunks .kb-chunk-meta { color: var(--muted); font-size: 12px; line-height: 1.4285714; overflow-wrap: anywhere; }
.kb-chunks button[aria-pressed="true"] { border-color: var(--accent-line); background: var(--accent-dim); color: var(--accent); }
.kb-chunks ul { padding-left: 22px; }
.kb-chunks li { margin: 8px 0; font-size: 14px; line-height: 1.4285714; }
.kb-search form { display: flex; align-items: flex-end; flex-wrap: wrap; gap: 8px; margin: 24px 0 16px; }
.kb-search label { display: flex; flex: 1 1 260px; flex-direction: column; gap: 8px; min-width: 0; color: var(--text); font-size: 14px; font-weight: 500; }
.kb-search input { width: 100%; min-width: 0; box-sizing: border-box; }
.kb-search-modes > button:last-child { margin-left: auto; }
.kb-search blockquote { margin: 16px 0; padding: 0 16px; border-left: 4px solid var(--line); color: var(--muted); font-size: 14px; line-height: 1.4285714; white-space: pre-wrap; overflow-wrap: anywhere; }
.kb-search section { margin: 24px 0; }
.kb-import-preview { max-height: 45dvh; margin: 20px 0; overflow: auto; scrollbar-width: thin; }
.kb-import-preview section { padding: 20px 0; border-top: 1px solid var(--line); }
.kb-import-preview pre { margin: 8px 0 0; color: var(--text); font: inherit; font-size: 14px; line-height: 1.4285714; white-space: pre-wrap; overflow-wrap: anywhere; }

@media (max-width: 1000px) {
  #view-knowledge .kb-toolbar input { max-width: none; }
  #kbSeed { margin-left: 0; }
  #kbForm { grid-template-columns: minmax(0, 1fr); }
  #view-knowledge .kb-section:nth-child(n) { grid-column: 1; grid-row: auto; border-left: 0; }
  #view-knowledge .kb-two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #view-knowledge textarea[name="note"] { min-height: 120px; }
}

@media (max-width: 768px) {
  #view-knowledge .kb-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 600px) {
  #view-knowledge .kb-heading { gap: 8px; }
  #view-knowledge .kb-heading h1 { flex-basis: 100%; margin-bottom: 8px; }
  #view-knowledge .kb-heading > button { flex: 1 1 auto; padding-inline: 12px; }
  #view-knowledge .kb-stage { margin-bottom: 20px; }
  #view-knowledge .kb-toolbar { align-items: stretch; padding: 16px; }
  #view-knowledge .kb-toolbar input { flex-basis: 100%; }
  #view-knowledge .kb-toolbar :is(select, .admin-select-trigger) { flex: 1 1 140px; width: auto; }
  #kbSeed { width: 100%; }
  #view-knowledge .kb-row { grid-template-columns: minmax(0, 1fr) auto; gap: 12px; padding: 16px; }
  #view-knowledge .kb-row-main { grid-column: 1 / -1; }
  #view-knowledge .kb-pagination { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 16px; }
  #kbPage { grid-column: 1 / -1; grid-row: 2; text-align: center; }
  #kbNext { grid-column: 2; grid-row: 1; }
  #view-knowledge .kb-pagination button { padding-inline: 10px; }
  #view-knowledge .kb-editor-heading, #view-knowledge #kbVersion { padding-inline: 16px; }
  #view-knowledge .kb-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  #view-knowledge .kb-section { padding: 20px 16px; }
  #view-knowledge :is(input, textarea, .admin-select-trigger), .kb-search input { font-size: 16px; }
  #view-knowledge .kb-actions { position: static; z-index: auto; padding-inline: 16px; box-shadow: none; }
  #view-knowledge .kb-actions > button { flex: 1 1 auto; }
  #kbBody { min-height: 320px; }
  #kbDisable, #kbChunks { margin-left: 0; }
  .ui-dialog.kb-history { width: calc(100vw - 24px); max-height: calc(100dvh - 24px); padding: 20px 16px; }
  .kb-history > .kb-preview-heading:first-child { margin: -20px -16px 20px; padding: 20px 16px; }
  .kb-history button { min-height: 44px; }
  .kb-history > input[type="file"] { font-size: 12px; }
  .kb-search-modes > button:last-child { margin-left: 0; }
  .kb-search form > label { flex-basis: 100%; }
  .kb-search form > button { flex: 1 1 auto; }
  .kb-chunks pre { padding: 12px; }
}