.registry-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.card {
  border: 1px solid var(--c-surface);
  border-radius: var(--radius);
  background: var(--c-base);
  overflow: clip;   /* clip for border-radius without blocking child scroll/sticky */
}

.card-summary {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.card-summary::-webkit-details-marker { display: none; }

.card-summary::before {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 5px solid var(--c-dim);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform 0.15s ease;
  flex-shrink: 0;
}
.card[open] > .card-summary::before { transform: rotate(90deg); }

.card-summary:hover { background: var(--c-surface); }

.card-title {
  font-weight: 600;
  font-size: 1rem;
  flex: 1;
  min-width: 0;
}

.card-meta {
  color: var(--c-dim);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.card-body {
  padding: 0.25rem 1rem 1rem;
  border-top: 1px solid var(--c-surface);
}

.entry-desc { margin: 0.75rem 0 0.9rem; }

/* Tag filter bar + tag pills share pill base */
.tag,
.tag-filter-btn {
  font-size: 0.75rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  color: var(--c-dim);
  border: 1px solid var(--c-pill-border);
}

.tags { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.tag {
  display: inline-block;
  background: var(--c-pill);
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}
.tag-filter-btn {
  background: var(--c-pill);
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}
.tag-filter-btn:hover { background: var(--c-pill-hover); }
.tag-filter-btn.active {
  background: var(--c-accent);
  color: var(--c-base);
  border-color: var(--c-accent);
}

.entry-fields {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.25rem 0.9rem;
  margin: 0 0 1rem;
  font-size: 0.9rem;
}
.entry-fields dt { color: var(--c-dim); font-weight: 500; }
.entry-fields dd { margin: 0; }

/* Nested phantom groups: reuse .card/.card-summary/.card-body, but smaller
   and indented with a left accent so nesting depth reads visually. */
.phantom-tree { display: flex; flex-direction: column; gap: 0; }
.phantom-tree .phantom-tree { margin-top: 0.5rem; }

.card.group {
  margin-left: 0.75rem;
  border-left: 2px solid var(--c-accent);
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}
.card.group > .card-summary { padding: 0.5rem 0.75rem; }
.card.group > .card-body { padding: 0.25rem 0.75rem 0.75rem; }
.card.group .card-title { font-weight: 500; font-size: 0.9rem; }

.card.phantom .card-title code {
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--c-text);
}

.group-default-tag {
  background: var(--c-base);
  color: var(--c-accent);
  border-color: var(--c-pill-border);
}