/* Knowledge base mock and initial structure */
body {
  height: 100vh;
  overflow: hidden;
}

.kb-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  height: calc(100vh - var(--header));
}

.kb-sidebar {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 14px 10px 18px;
}

.kb-side-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 6px 12px;
  border-bottom: 1px solid rgba(46,54,80,.8);
  margin-bottom: 10px;
}

.kb-side-head strong {
  font-size: 13px;
}

.kb-side-head span {
  color: var(--text3);
  font-size: 11px;
}

.kb-tree {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.kb-system-title {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 7px;
  border-radius: 6px;
  color: var(--text);
  cursor: default;
  font-size: 13px;
  font-weight: 700;
}

.kb-system-title::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 5px rgba(79,142,247,.7);
  flex-shrink: 0;
}

.kb-system-title b,
.kb-group a b {
  margin-left: auto;
  color: var(--text3);
  font: 500 11px var(--mono);
}

.kb-group {
  padding: 1px 0 6px 14px;
}

.kb-group-title {
  color: var(--text3);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin: 7px 0 4px 11px;
}

.kb-group a {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  padding: 6px 8px 6px 11px;
  border-radius: 6px;
  color: var(--text2);
  font-size: 12px;
  font-weight: 500;
  transition: background .12s, color .12s;
}

.kb-group a:hover,
.kb-group a.active {
  background: rgba(79,142,247,.11);
  color: var(--brand);
  text-decoration: none;
}

.kb-group a span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.kb-group a.empty-count {
  color: var(--text3);
  opacity: .75;
}

.kb-shell {
  min-height: 100%;
  overflow-y: auto;
  padding: 52px 24px 44px;
}

.kb-search-zone {
  max-width: 820px;
  margin: 8vh auto 42px;
  text-align: center;
}

.kb-kicker {
  color: var(--brand);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.kb-search-zone h1 {
  font-size: 30px;
  line-height: 1.15;
  margin-bottom: 18px;
  font-weight: 700;
}

.kb-search {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  box-shadow: 0 18px 52px rgba(0,0,0,.22);
}

.kb-search:focus-within {
  border-color: rgba(79,142,247,.75);
}

.kb-search input {
  min-width: 0;
  background: transparent;
  border: 0;
  color: var(--text);
  font: 500 15px 'Inter', system-ui, sans-serif;
  outline: none;
  padding: 10px 12px;
}

.kb-search input::placeholder {
  color: var(--text3);
}

.kb-quick {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}

.kb-quick button {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: 999px;
  cursor: pointer;
  font: 600 12px 'Inter', system-ui, sans-serif;
  padding: 7px 12px;
  transition: color .12s, border-color .12s, background .12s;
}

.kb-quick button:hover {
  color: var(--text);
  border-color: var(--brand);
  background: rgba(79,142,247,.08);
}

.kb-grid {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.3fr .85fr;
  gap: 14px;
}

.kb-panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.kb-wide {
  grid-row: span 2;
}

.kb-panel {
  padding: 18px;
}

.kb-panel-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.kb-panel-head h2 {
  font-size: 15px;
  font-weight: 700;
}

.kb-panel-head a {
  margin-left: auto;
  color: var(--text3);
  font-size: 12px;
}

.kb-panel-head a:hover {
  color: var(--brand);
  text-decoration: none;
}

.kb-list,
.kb-mini-list {
  display: flex;
  flex-direction: column;
}

.kb-row {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 12px;
  align-items: start;
  padding: 13px 0;
  color: var(--text);
  border-top: 1px solid rgba(46,54,80,.7);
}

.kb-row:first-child {
  border-top: 0;
}

.kb-row:hover {
  text-decoration: none;
}

.kb-row:hover strong,
.kb-mini-list a:hover strong {
  color: var(--brand);
}

.kb-rank {
  color: var(--text3);
  font-family: var(--mono);
  font-size: 12px;
  padding-top: 2px;
}

.kb-row strong,
.kb-mini-list strong {
  display: block;
  color: var(--text);
  font-size: 13px;
  font-weight: 650;
  line-height: 1.35;
}

.kb-row p {
  color: var(--text2);
  font-size: 12px;
  line-height: 1.45;
  margin-top: 4px;
}

.kb-row em {
  align-self: center;
  background: rgba(79,142,247,.11);
  color: var(--brand);
  border-radius: 4px;
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: .05em;
  padding: 3px 7px;
  text-transform: uppercase;
}

.kb-mini-list a {
  padding: 11px 0;
  border-top: 1px solid rgba(46,54,80,.7);
  color: var(--text);
}

.kb-mini-list a:first-child {
  border-top: 0;
}

.kb-mini-list a:hover {
  text-decoration: none;
}

.kb-mini-list span {
  display: block;
  color: var(--text3);
  font-size: 12px;
  margin-top: 4px;
}

.kb-review {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
  margin: 12px 0 16px;
}

.kb-review-number {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(250,204,21,.1);
  border: 1px solid rgba(250,204,21,.22);
  border-radius: 8px;
  color: var(--yellow);
  font: 700 24px var(--mono);
}

.kb-review p {
  color: var(--text2);
  font-size: 12px;
  line-height: 1.5;
}

.kb-full {
  width: 100%;
}

@media (max-width: 860px) {
  body {
    height: auto;
    overflow: auto;
  }

  .kb-layout {
    display: block;
    height: auto;
  }

  .kb-sidebar {
    max-height: 320px;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .kb-shell {
    padding: 34px 14px;
  }

  .kb-search-zone {
    margin-top: 4vh;
  }

  .kb-search-zone h1 {
    font-size: 25px;
  }

  .kb-search {
    grid-template-columns: 1fr;
  }

  .kb-search .btn {
    width: 100%;
  }

  .kb-grid {
    grid-template-columns: 1fr;
  }

  .kb-row {
    grid-template-columns: 28px 1fr;
  }

  .kb-row em {
    grid-column: 2;
    justify-self: start;
  }

  .app-header {
    padding: 0 14px;
  }
}

.kb-editor-shell {
  min-height: calc(100vh - var(--header));
  overflow-y: auto;
  padding: 24px;
}

.kb-editor {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 16px;
}

.kb-editor-main,
.kb-ai-panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.kb-editor-main {
  padding: 22px;
}

.kb-editor-head {
  border-bottom: 1px solid rgba(46,54,80,.8);
  padding-bottom: 18px;
  margin-bottom: 18px;
}

.kb-editor-head h1 {
  font-size: 22px;
  margin: 4px 0 6px;
}

.kb-editor-head p {
  color: var(--text2);
  font-size: 13px;
  line-height: 1.5;
}

.kb-form-grid {
  display: grid;
  grid-template-columns: 1fr 180px 180px;
  gap: 12px;
}

.kb-title-field {
  grid-column: span 1;
}

.kb-editor-text {
  min-height: 310px;
}

.kb-attach-box {
  border: 1px dashed var(--border);
  border-radius: 8px;
  background: rgba(28,34,53,.45);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
}

.kb-attach-box strong,
.kb-attachment-file strong {
  display: block;
  font-size: 13px;
}

.kb-attach-box span,
.kb-attachment-file span {
  display: block;
  color: var(--text3);
  font-size: 12px;
  margin-top: 3px;
}

.kb-attachment-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}

.kb-attachment-thumb {
  width: 46px;
  height: 46px;
  border-radius: 6px;
  background: rgba(79,142,247,.12);
  border: 1px solid rgba(79,142,247,.25);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font: 700 11px var(--mono);
}

.kb-ai-panel {
  padding: 18px;
  align-self: start;
  position: sticky;
  top: 18px;
}

.kb-ai-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 16px;
}

.kb-ai-status span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px rgba(74,222,128,.7);
}

.kb-ai-block {
  border-top: 1px solid rgba(46,54,80,.8);
  padding-top: 13px;
  margin-top: 13px;
}

.kb-ai-block:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.kb-ai-block label {
  display: block;
  color: var(--text3);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 7px;
}

.kb-ai-block p,
.kb-ai-block li {
  color: var(--text2);
  font-size: 12px;
  line-height: 1.55;
}

.kb-ai-block ul {
  padding-left: 17px;
}

.kb-ai-block a {
  display: block;
  color: var(--text2);
  font-size: 12px;
  line-height: 1.4;
  margin-top: 6px;
}

.kb-ai-block a:hover {
  color: var(--brand);
  text-decoration: none;
}

.kb-ai-chipline,
.kb-ai-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.kb-ai-chipline span,
.kb-ai-tags span {
  background: rgba(79,142,247,.11);
  color: var(--brand);
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 4px 7px;
  text-transform: uppercase;
}

.kb-ai-tags span {
  background: var(--bg3);
  color: var(--text2);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 600;
}

@media (max-width: 980px) {
  .kb-editor {
    grid-template-columns: 1fr;
  }

  .kb-ai-panel {
    position: static;
  }

  .kb-form-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Cabecalho de resultados (busca/filtro) ── */
.kb-results-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.kb-results-head h2 { font-size: 16px; font-weight: 600; }

/* ── Detalhe do artigo (leitura) ── */
.kb-art-title { font-size: 22px; font-weight: 700; line-height: 1.25; margin-bottom: 10px; }
.kb-art-meta { font-size: 12px; color: var(--text3); margin-bottom: 14px; }
.kb-art-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.kb-tag {
  font-size: 11px; color: var(--brand);
  background: rgba(79,142,247,.1); border: 1px solid rgba(79,142,247,.2);
  border-radius: 4px; padding: 3px 8px;
}
.kb-art-summary {
  font-size: 14px; color: var(--text2); line-height: 1.6;
  border-left: 3px solid var(--brand); background: var(--bg2);
  padding: 12px 16px; border-radius: 0 8px 8px 0; margin-bottom: 20px;
}
.kb-art-body { font-size: 14px; line-height: 1.75; color: var(--text); }
.kb-art-body h1, .kb-art-body h2, .kb-art-body h3 { margin: 20px 0 8px; font-weight: 600; }
.kb-art-body p { margin: 0 0 12px; }
.kb-art-body ul, .kb-art-body ol { margin: 0 0 12px 22px; }
.kb-art-body li { margin-bottom: 4px; }
.kb-art-body code {
  font-family: var(--mono); font-size: 12.5px;
  background: var(--bg3); padding: 1px 5px; border-radius: 4px;
}
.kb-art-body pre {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px 16px; overflow-x: auto; margin: 0 0 14px;
}
.kb-art-attachments { margin-top: 28px; border-top: 1px solid var(--border); padding-top: 18px; }
.kb-art-attachments h3 { font-size: 13px; font-weight: 600; color: var(--text2); margin-bottom: 12px; }
.kb-att-img {
  max-width: 320px; max-height: 240px; border-radius: 8px;
  border: 1px solid var(--border); margin: 0 10px 10px 0; cursor: zoom-in; vertical-align: top;
}
.kb-att-file { display: inline-block; margin: 0 10px 10px 0; color: var(--brand); font-size: 13px; }

/* ── Ações do detalhe do artigo (voltar / editar / excluir) ── */
.kb-detail-actions { display: flex; gap: 8px; align-items: center; margin-bottom: 16px; }
.kb-detail-actions .kb-del { color: var(--red); border-color: rgba(248,113,113,.35); }
.kb-detail-actions .kb-del:hover { border-color: var(--red); }