/* ============================================================
   tree.css — GitHub-style expandable file tree
   ============================================================ */

.tree-container {
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
  font-size: 0.9rem;
}

/* Root label */
.tree-root-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 1rem;
  color: #333;
  margin-bottom: 0.6em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid #e0e0e0;
}

.tree-root-label .tree-icon {
  font-size: 1.1rem;
}

/* Tree list reset */
.tree-list,
.tree-children {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Each node row */
.tree-node {
  position: relative;
}

/* ---- Connector lines ---- */
/* Vertical line running down the left side of a group */
.tree-children {
  padding-left: 1.4em;
  border-left: 1px solid #ccc;
  margin-left: 0.55em;
}

/* Horizontal tick toward each item */
.tree-node-row::before {
  content: '';
  position: absolute;
  left: -1.4em;
  top: 50%;
  width: 0.9em;
  height: 1px;
  background: #ccc;
}

/* ---- Node row ---- */
.tree-node-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 6px 4px 2px;
  border-radius: 4px;
  cursor: default;
  position: relative;
  transition: background 0.15s ease;
  user-select: none;
}

.tree-node-row:hover {
  background: rgba(88, 6, 6, 0.05);
}

.tree-node-row.is-folder {
  cursor: pointer;
}

/* ---- Chevron ---- */
.tree-chevron {
  display: inline-block;
  width: 1em;
  text-align: center;
  color: #777;
  font-style: normal;
  font-size: 0.75rem;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.tree-node.open > .tree-node-row .tree-chevron {
  transform: rotate(90deg);
}

/* ---- Icon ---- */
.tree-icon {
  flex-shrink: 0;
  font-size: 1rem;
  line-height: 1;
}

/* ---- Name + meta ---- */
.tree-name {
  color: #1b3d9b;
  font-weight: 600;
  flex-shrink: 0;
}

.tree-node-row.is-file .tree-name {
  color: #333;
  font-weight: 400;
}

.tree-meta {
  color: #777;
  font-size: 0.8rem;
  margin-left: auto;
  padding-left: 1em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 260px;
}

/* ---- Commit date badge ---- */
.tree-date {
  color: #999;
  font-size: 0.78rem;
  margin-left: 0.5em;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ---- Collapsible children ---- */
.tree-children {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
}

.tree-node.open > .tree-children {
  max-height: 600px;
}

/* ---- Detail panel (README body) ---- */
.tree-detail {
  display: none;
  background: #f9f6f6;
  border: 1px solid #e8dede;
  border-radius: 6px;
  padding: 1em 1.2em;
  margin: 0.5em 0 0.5em 1.8em;
  font-family: 'Roboto', sans-serif;
  font-size: 0.88rem;
  line-height: 1.6;
  color: #444;
}

.tree-detail.open {
  display: block;
}

.tree-detail .detail-link {
  display: inline-block;
  margin-top: 0.6em;
  color: #1b3d9b;
  text-decoration: none;
  font-size: 0.85rem;
}

.tree-detail .detail-link:hover {
  text-decoration: underline;
}

.tree-detail .detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 0.6em;
}

.tree-detail .tag {
  background: #f0e8e8;
  color: #580606;
  border-radius: 3px;
  padding: 2px 7px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .tree-meta {
    display: none;
  }
  .tree-date {
    display: none;
  }
}