.kg-shell {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  height: 100vh;
  min-height: 0;
  overflow: hidden;
}

.kg-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 0;
  overflow: hidden;
  border-right: 1px solid var(--line);
  background: #eef1f5;
  padding: 20px;
}

.kg-main {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) minmax(190px, 28vh);
  min-width: 0;
  min-height: 0;
  height: 100vh;
  overflow: hidden;
}

.top-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.stack {
  display: grid;
  gap: 8px;
}

.stack button,
.kg-list button {
  min-height: 38px;
  border-radius: 8px;
}

.kg-list {
  display: flex;
  min-height: 0;
  flex-direction: column;
  gap: 8px;
  overflow: auto;
}

.kg-list button {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  padding: 10px;
  text-align: left;
}

.kg-list button.active {
  border-color: var(--accent);
  background: #f4f9ff;
}

.kg-list-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 10px;
}

.kg-list-row .danger {
  min-height: 32px;
  border-color: #f1b8b8;
  color: #b42318;
  padding: 0 10px;
  text-align: center;
}

.kg-list strong,
.kg-list span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.kg-list span {
  color: var(--muted);
  font-size: 12px;
}

.kg-canvas-wrap {
  position: relative;
  min-height: 0;
  overflow: hidden;
  background: #fbfcfe;
}

#kgCanvas {
  display: block;
  width: 100%;
  height: 100%;
}

#kgCanvas .vis-navigation .vis-button {
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 10px rgba(16, 24, 40, 0.08);
}

.kg-toolbar {
  position: absolute;
  z-index: 2;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  padding: 6px;
  box-shadow: 0 8px 18px rgba(16, 24, 40, 0.08);
}

.kg-toolbar button {
  min-height: 32px;
  border-radius: 6px;
  padding: 0 10px;
  font-size: 13px;
}

.kg-inspector {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 12px;
  min-height: 0;
  overflow: hidden;
  border-top: 1px solid var(--line);
  background: var(--panel);
  padding: 12px;
}

.kg-inspector details {
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.kg-inspector summary {
  cursor: pointer;
  font-weight: 700;
}

.kg-inspector pre {
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.paper-ref {
  border-top: 1px solid var(--line);
  padding: 10px 0;
}

.paper-ref:first-child {
  border-top: 0;
}

.paper-ref p {
  color: var(--muted);
  font-size: 13px;
}

.kg-tooltip {
  max-width: 320px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.35;
}

.kg-tooltip div {
  margin-top: 4px;
}

@media (max-width: 900px) {
  .kg-shell {
    grid-template-columns: 1fr;
  }

  .kg-sidebar {
    display: none;
  }

  .kg-inspector {
    grid-template-columns: 1fr;
  }
}