/* ============================================================
   sidebar.css — left rail, folders, maps, footer
   ============================================================ */

#sidebar {
  width: var(--sidebar-full);
  min-width: var(--sidebar-full);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: margin-left 0.2s ease;
}
#sidebar.collapsed {
  margin-left: calc(-1 * var(--sidebar-full));
}

.sidebar-header {
  padding: 18px 16px 12px;
  border-bottom: 1px solid var(--border-color);
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.brand-logo {
  width: 10cm;
  height: 60px;
  object-fit: contain;
  border-radius: 6px;
  filter: drop-shadow(0 0 6px rgba(139, 92, 246, 0.35));
}

.sidebar-actions {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.import-export-row {
  display: flex;
  gap: 6px;
}
.import-export-row button {
  flex: 1;
}

.folder-list {
  flex: 1;
  overflow-y: auto;
  padding: 10px 10px;
}
.folder-list::-webkit-scrollbar {
  width: 6px;
}
.folder-list::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.folder-group {
  margin-bottom: 6px;
}
.folder-group.nested {
  margin-left: 14px;
  border-left: 1px dashed var(--border-color);
  padding-left: 6px;
}

.folder-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-muted);
  user-select: none;
}
.folder-head:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}
.folder-head .chevron {
  transition: transform 0.15s ease;
  font-size: 10px;
}
.folder-head.open .chevron {
  transform: rotate(90deg);
}
.folder-head .folder-name-label {
  flex: 1;
}
.folder-head .folder-del {
  opacity: 0;
  font-size: 12px;
  color: var(--text-muted);
  padding: 2px 4px;
}
.folder-head:hover .folder-del {
  opacity: 1;
}
.folder-head .folder-del:hover {
  color: var(--danger);
}
.folder-head.drag-over {
  outline: 1px dashed var(--accent);
}

.folder-head-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.15s;
}
.folder-head:hover .folder-head-actions {
  opacity: 1;
}
.folder-head-actions .item-rename-icon,
.folder-head-actions .item-add-icon,
.folder-head-actions .folder-del {
  font-size: 11px;
  padding: 2px 4px;
}
.item-add-icon svg {
  width: 13px;
  height: 13px;
}
.item-add-icon:hover {
  color: var(--accent);
  background: var(--bg-card-hover);
}

.folder-maps {
  display: flex;
  flex-direction: column;
  padding-left: 14px;
  gap: 2px;
}

.map-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 8px;
  border-radius: 6px;
  font-size: 13px;
  cursor: grab;
  color: var(--text-muted);
  border: 1px solid transparent;
}
.map-item:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}
.map-item.active {
  background: rgba(139, 92, 246, 0.14);
  color: var(--text-primary);
  border-color: rgba(139, 92, 246, 0.4);
}
.map-item .map-del {
  margin-left: auto;
  opacity: 0;
  font-size: 12px;
}
.map-item:hover .map-del {
  opacity: 1;
}
.map-item .map-del:hover {
  color: var(--danger);
}
.map-item.drag-over {
  outline: 1px dashed var(--accent);
}

/* ---------------- RENAME / DELETE ICONS ---------------- */
.item-rename-icon,
.item-edit-icon {
  opacity: 0;
  font-size: 11px;
  color: var(--text-muted);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  transition: opacity 0.15s;
}
.folder-head:hover .item-rename-icon,
.map-item:hover .item-rename-icon {
  opacity: 1;
}
.item-rename-icon:hover {
  color: var(--accent);
  background: var(--bg-card-hover);
}

.item-rename-icon svg,
.folder-del svg,
.map-del svg {
  width: 13px;
  height: 13px;
  vertical-align: -2px;
}

/* ---------------- FOOTER ---------------- */
.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  color: var(--text-muted);
  text-align: center;
}

.author-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}
.author-link:hover {
  text-decoration: underline;
  color: var(--accent-hover);
}