.playbook-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 16px;
  align-items: start;
}
.playbook-sidebar {
  position: sticky;
  top: 12px;
}
.playbook-tree {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: 70vh;
  overflow: auto;
  padding-right: 4px;
}
.playbook-tree-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.82rem;
  border: 1px solid transparent;
  min-height: 36px;
}
.playbook-tree-item:hover {
  background: #f3f4f6;
}
.playbook-tree-item.active {
  background: #dbeafe;
  border-color: #93c5fd;
  color: #1d4ed8;
  font-weight: 600;
}
.playbook-tree-item .count {
  margin-left: auto;
  color: #6b7280;
  font-size: 0.72rem;
}
.playbook-tree-children {
  margin-left: 14px;
  border-left: 1px solid #e5e7eb;
  padding-left: 6px;
}
.playbook-category-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.playbook-breadcrumb {
  color: #6b7280;
  font-size: 0.85rem;
  margin-bottom: 10px;
}
@media (max-width: 900px) {
  .playbook-layout {
    grid-template-columns: 1fr;
  }
  .playbook-sidebar {
    position: static;
  }
}
@media (max-width: 768px) {
  .playbook-tree-item {
    min-height: 44px;
    font-size: 0.95rem;
    padding: 10px 10px;
  }
  .playbook-tree {
    max-height: none;
  }
}