/* simple tree */
.simple-tree {
    user-select: none;
    -moz-user-select: none;
  }
  .simple-tree>details>summary {
    display: none;
  }
  .simple-tree a,
  .simple-tree summary {
    display: block;
    width: fit-content;
    width: -moz-fit-content;
    border: solid 1px transparent;
    padding: 0 2px;
    outline: none;
    cursor: pointer;
  }
  .simple-tree a {
    text-decoration: none;
    color: inherit;
  }
  .simple-tree ::-webkit-details-marker {
    display: none;
  }
  .simple-tree summary {
    list-style-type: none;
    background-color: #eee;
    outline: none;
  }
  .simple-tree.dark summary {
    background-color: #444;
  }
  .simple-tree details>:not(details),
  .simple-tree details {
    position: relative;
  }
  .simple-tree details :not(summary) {
    margin-left: 20px;
  }
  .simple-tree.nodots details :not(summary) {
    margin-left: 12px;
  }
  .simple-tree details::before,
  .simple-tree details>:not(details)::before {
    content: '';
    width: 10px;
    display: block;
    position: absolute;
  }
  .simple-tree details::before,
  .simple-tree details>:not(details)::before {
    background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 2 2" xmlns="http://www.w3.org/2000/svg"><g><rect x="0" y="0" width="1" height="1"/></g></svg>') left top / 2px 2px;
  }
  .simple-tree.dark details::before,
  .simple-tree.dark details>:not(summary)::before {
    background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 2 2" xmlns="http://www.w3.org/2000/svg"><g><rect x="0" y="0" width="1" height="1" fill="white"/></g></svg>');
  }
  .simple-tree.nodots details::before,
  .simple-tree.nodots details>:not(summary)::before {
    background-image: none;
  }
  .simple-tree details::before {
    top: 0;
    height: 100%;
    background-repeat: repeat-y;
    left: 5px;
    z-index: -1;
  }
  .simple-tree details>:not(details)::before {
    top: 8px;
    height: calc(100% - 8px);
    background-repeat: repeat-x;
    left: -15px;
  }
  .simple-tree details>summary::before {
    background: url('data:image/svg+xml;utf8,<svg viewBox="0 0 12 12" xmlns="http://www.w3.org/2000/svg"><g><rect x="0" y="0" width="12" height="12" fill="white" stroke="gray" stroke-width="1"/><line x1="3" y1="6" x2="9" y2="6" stroke="black" stroke-width="2"/><line x1="6" y1="3" x2="6" y2="9" stroke="black" stroke-width="2"/></g></svg>') center center / 12px 12px no-repeat;
    left: -22px;
    top: 2px;
    width: 16px;
    height: 16px;
  }
  .simple-tree details[open]>summary::before {
    background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 12 12" xmlns="http://www.w3.org/2000/svg"><title/><g><rect x="0" y="0" width="12" height="12" fill="white" stroke="gray" stroke-width="1"/><line x1="3" y1="6" x2="9" y2="6" stroke="black" stroke-width="2"/></g></svg>');
  }
  /* async tree */
  .async-tree details[open][data-loaded=false] {
    pointer-events: none;
  }
  .async-tree details[open][data-loaded=false]>summary::before {
    background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 64 64" xmlns="http://www.w3.org/2000/svg"><g><animateTransform attributeName="transform" type="rotate" from="0 32 32" to="360 32 32" dur="1s" repeatCount="indefinite"/><circle cx="32" cy="32" r="32" fill="whitesmoke"/><path d="M 62 32 A 30 30 0 0 0 32 2" style="stroke: black; stroke-width:6; fill:none;"/></g></svg>');
  }
  .async-tree.black details[open][data-loaded=false]>summary::before {
    background-image: url('data:image/svg+xml;utf8,<svg viewBox="0 0 64 64" xmlns="http://www.w3.org/2000/svg"><g><animateTransform attributeName="transform" type="rotate" from="0 32 32" to="360 32 32" dur="1s" repeatCount="indefinite"/><circle cx="32" cy="32" r="32" fill="whitesmoke"/><path d="M 62 32 A 30 30 0 0 0 32 2" style="stroke: white; stroke-width:6; fill:none;"/></g></svg>');
  }
  /* select tree */
  .select-tree .selected {
    background-color: #FF4F1F;
    border-color: #FF4F1F;
    color:white;
    z-index: 1;
  }
  
  .select-tree.dark .selected {
    background-color: #3a484e;
    border-color: #99defd;
  }