.project-library-explorer {
  display: grid;
  gap: 12px;
  margin-top: 12px;
  max-height: calc(100vh - 230px);
  overflow-y: auto;
  padding-right: 4px;
}

.project-library-detail {
  display: grid;
  gap: 10px;
  padding: 10px;
  border: 1px solid #2a3543;
  border-radius: 10px;
  background: #141c27;
}

.project-library-detail-thumb {
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  background: #0a0f16 center / contain no-repeat;
}

.project-library-detail-meta {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.project-library-detail-meta strong {
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 12px;
}

.project-library-detail-meta small {
  color: #98a3b5;
  font-size: 10px;
}

.project-library-detail-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.project-library-detail-actions button {
  min-height: 30px;
  padding: 4px 8px;
  font-size: 11px;
}

.project-library-detail-actions [data-project-library-open] {
  border-color: #7cc7f2;
  background: #9edcff;
  color: #07131c;
}

.project-library-tree {
  display: grid;
  gap: 0;
  overflow: hidden;
  border: 1px solid #2a3038;
  border-radius: 6px;
  background:
    repeating-linear-gradient(
      to bottom,
      #181818 0,
      #181818 34px,
      #242424 34px,
      #242424 68px
    );
  min-height: 280px;
}

.project-library-month,
.project-library-category {
  border: 0;
  border-radius: 0;
  background: transparent;
}

.project-library-month > summary,
.project-library-category > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 34px;
  padding: 5px 10px;
  cursor: pointer;
  list-style: none;
  background: rgba(42, 42, 42, 0.92);
  font-size: 12px;
  overflow: hidden;
}

.project-library-month > summary::-webkit-details-marker,
.project-library-category > summary::-webkit-details-marker {
  display: none;
}

.project-library-month > summary::before,
.project-library-category > summary::before {
  content: "›";
  flex: 0 0 auto;
  color: #aab1ba;
  font-size: 18px;
  transform: rotate(0deg);
}

.project-library-month[open] > summary::before,
.project-library-category[open] > summary::before {
  transform: rotate(90deg);
}

.project-library-month > summary strong::before,
.project-library-category > summary span::before {
  content: "📁";
  margin-right: 7px;
  font-size: 15px;
}

.project-library-month > summary strong,
.project-library-category > summary span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-library-category {
  margin: 0;
}

.project-library-category > summary {
  padding-left: 28px;
}

.project-library-category > summary small {
  color: #98a3b5;
  margin-left: auto;
}

.project-library-tree-items {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding: 0;
}

.project-library-tree-item {
  width: 100%;
  min-height: 34px;
  padding: 6px 10px 6px 58px;
  border: 0;
  border-radius: 0;
  background: rgba(24, 24, 24, 0.94);
  color: inherit;
  text-align: left;
  font-size: 11px;
}

.project-library-tree-item::before {
  content: "▧";
  margin-right: 7px;
  color: #aab1ba;
}

.project-library-tree-item span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-library-tree-item.active {
  background: #6f183e;
  color: #fff;
}