.pk-root {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  container-type: inline-size;
}

.pk-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pk-title {
  font-size: 1.2em;
  font-weight: 600;
  flex: 1;
}

.pk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
}

.pk-info-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 5px;
}

@container (max-width: 500px) {
  .pk-info-grid {
    grid-template-columns: 1fr;
  }
}

.pk-card {
  background: var(--background-secondary);
  border: 1px solid var(--background-modifier-border);
  border-radius: 6px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pk-card-header {
  font-weight: 600;
}

.pk-clickable {
  cursor: pointer;
}

.pk-clickable:hover {
  color: var(--text-accent);
}

.pk-card-body {
  font-size: 0.9em;
  color: var(--text-muted);
  white-space: pre-wrap;
}

.pk-empty {
  color: var(--text-muted);
  padding: 20px;
  text-align: center;
}

.pk-modal-error {
  color: var(--text-error);
  margin-top: 8px;
  font-size: 0.9em;
}

.pk-section-title {
  font-weight: 600;
  margin-top: 8px;
}

.pk-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 1.2em;
  font-weight: 600;
}

.pk-breadcrumb-link {
  cursor: pointer;
  color: var(--text-muted);
  font-weight: 500;
}

.pk-breadcrumb-link:hover {
  color: var(--text-accent);
}

.pk-breadcrumb-current {
  color: var(--text-normal);
}

.pk-breadcrumb-sep {
  color: var(--text-muted);
  margin: 0 6px;
  font-weight: 400;
}

.pk-mobile-breadcrumb {
  position: relative;
  z-index: 5;
  background: var(--background-primary);
  width: 100%;
  flex-shrink: 0;
  padding: 8px 12px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--background-modifier-border);
  box-sizing: border-box;
}

.pk-btn-card {
  box-sizing: border-box;
  padding: 10px;
  background: var(--background-secondary);
  border: 1px solid var(--background-modifier-border);
  border-radius: 6px;
  cursor: pointer;
  overflow-wrap: anywhere;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.pk-btn-card:hover {
  background: var(--background-modifier-hover);
}

.pk-btn-card strong {
  font-weight: 600;
}

.pk-project-core,
.pk-info-card {
  font-size: 0.85em;
  color: var(--text-muted);
}
.pk-project-core > p:first-child,
.pk-info-card > p:first-child { margin-top: 0; }
.pk-project-core > p:last-child,
.pk-info-card > p:last-child { margin-bottom: 0; }
.pk-project-core > ul:first-child,
.pk-project-core > ol:first-child,
.pk-info-card > ul:first-child,
.pk-info-card > ol:first-child { margin-top: 0; }
.pk-project-core > ul:last-child,
.pk-project-core > ol:last-child,
.pk-info-card > ul:last-child,
.pk-info-card > ol:last-child { margin-bottom: 0; }

.pk-project-core p,
.pk-project-core ul,
.pk-project-core ol,
.pk-info-card p,
.pk-info-card ul,
.pk-info-card ol {
  margin: 0.25em 0;
}

.pk-graph {
  width: 100%;
  min-height: 60vh;
  background: var(--background-secondary);
  border: 1px solid var(--background-modifier-border);
  border-radius: 6px;
}

@container (max-width: 500px) {
  .pk-graph {
    min-height: 50vh;
  }
}

/* Tabs */
.pk-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--background-modifier-border);
  margin-top: 4px;
}

.pk-tab {
  padding: 6px 14px;
  cursor: pointer;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  color: var(--text-muted);
  font-weight: 500;
  user-select: none;
}

.pk-tab:hover {
  background: var(--background-modifier-hover);
  color: var(--text-normal);
}

.pk-tab.pk-tab-active {
  background: var(--background-secondary);
  border-color: var(--background-modifier-border);
  color: var(--text-normal);
}

/* Graph: HTML-Node */
.pk-graph-node {
  box-sizing: border-box;
  width: 160px;
  padding: 8px 10px;
  background: var(--background-secondary);
  border: 1px solid var(--background-modifier-border);
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: stretch;
  text-align: center;
  color: var(--text-normal);
  overflow-wrap: anywhere;
  font-size: 0.85em;
  user-select: none;
}

.pk-graph-node strong {
  font-weight: 600;
  cursor: pointer;
}

.pk-graph-node strong:hover {
  color: var(--text-accent);
}

.pk-graph-node .pk-badges {
  justify-content: center;
}

.pk-graph-node .pk-badge {
  cursor: pointer;
}

.pk-graph-node.pk-drop-target {
  border-color: var(--interactive-accent);
  border-width: 2px;
}

.pk-graph-node.pk-dragging {
  opacity: 0.4;
}

.pk-graph.pk-drop-target-bg {
  outline: 2px dashed var(--interactive-accent);
  outline-offset: -8px;
}

/* Collection-Card Badges */
.pk-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.pk-badge {
  font-size: 0.8em;
  padding: 2px 8px;
  border-radius: 12px;
  background: var(--background-primary);
  border: 1px solid var(--background-modifier-border);
  color: var(--text-normal);
  cursor: pointer;
  user-select: none;
}

.pk-badge:hover {
  background: var(--background-modifier-hover);
  color: var(--text-accent);
}

.pk-badge-dragging {
  opacity: 0.4;
}

/* DnD */
.pk-drop-target {
  outline: 2px solid var(--interactive-accent);
  outline-offset: -2px;
}

.pk-card-dragging {
  opacity: 0.4;
}