.tree { margin: 1em; }

.tree input {
    position: absolute;
    clip: rect(0, 0, 0, 0);
}

.tree input ~ ul { display: none; }

.tree input:checked ~ ul { display: block; }

/* ————————————————————–
  Tree rows
*/
.tree li {
    line-height: 1.2;
    position: relative;
    padding: 0 0 1em 1em;
}

.tree ul li { padding: 1em 0 0 1em; }

.tree > li:last-child { padding-bottom: 0; }

/* ————————————————————–
  Tree labels
*/
.tree_label {
    position: relative;
    display: inline-block;
}

.tree_label {
    .affilite_code {
        border: 1px solid #ccc;
        border-radius: 4px;
        padding: 2px 6px;
    }
}


label.tree_label {
    cursor: pointer;
}


/*label.tree_label:hover {*/
/*    .affilite_code {*/
/*        background: #ff6600;*/
/*        color: #fff;*/
/*        border: 1px solid #ff6600;*/
/*    }*/
/*}*/

/*label.tree_label:has(:hover) ~ ul .affiliate_code,*/
/*label.tree_label:has(:hover) + ul .affiliate_code {*/
/*    background: #ff6600;*/
/*    color: #fff;*/
/*    border: 1px solid #ff6600;*/
/*}*/



/* ————————————————————–
  Tree expanded icon
*/
label.tree_label:before {
    background: #000;
    color: #fff;
    position: relative;
    z-index: 1;
    float: left;
    margin: 0 1em 0 -2em;
    width: 1em;
    height: 1em;
    border-radius: 1em;
    content: '+';
    text-align: center;
    line-height: .9em;
}

:checked ~ label.tree_label:before { content: '–'; }

/* ————————————————————–
  Tree branches
*/
.tree li:before {
    position: absolute;
    top: 0;
    bottom: 0;
    left: -.5em;
    display: block;
    width: 0;
    border-left: 1px solid #777;
    content: "";
}

.tree_label:after {
    position: absolute;
    top: 0;
    left: -1.5em;
    display: block;
    height: 0.5em;
    width: 1em;
    border-bottom: 1px solid #777;
    border-left: 1px solid #777;
    border-radius: 0 0 0 .3em;
    content: '';
}

.last_kid:after {
    left: -1.7em
}

label.tree_label:after { border-bottom: 0; }

:checked ~ label.tree_label:after {
    border-radius: 0 .3em 0 0;
    border-top: 1px solid #777;
    border-right: 1px solid #777;
    border-bottom: 0;
    border-left: 0;
    bottom: 0;
    top: 0.5em;
    height: auto;
}

.tree li:last-child:before {
    height: 1em;
    bottom: auto;
}

.tree > li:last-child:before { display: none; }

.tree_custom {
    display: block;
    background: #eee;
    padding: 1em;
    border-radius: 0.3em;
}