@import url("https://fonts.googleapis.com/css2?family=Rubik:wght@300;400;500;600;700;800;900&display=swap");
body{
    font-family: "Rubik", sans-serif;
}

/*-------------vertical-tree-view------------*/
.vertical-tree{
    padding-top: 20px;
    padding-bottom: 20px;
}
.vertical-tree ul{
    padding-left: 30px;
}
.vertical-tree li {
    margin: 0px 0;
    list-style-type: none;
    position: relative;
    padding: 20px 5px 0px 5px;
}
.vertical-tree li::before{
    content: '';
    position: absolute; 
    top: 0;
    width: 1px; 
    height: 100%;
    right: auto; 
    left: -20px;
    border-left: 2px solid #ccc;
    bottom: 50px;
}
.vertical-tree li::after{
    content: '';
    position: absolute; 
    top: 34px; 
    width: 25px; 
    height: 20px;
    right: auto; 
    left: -20px;
    border-top: 2px solid #ccc;
}
.vertical-tree li a{
    display: inline-block;
    padding: 8px 30px;
    text-decoration: none;
    background-color: #000;
    color: #fff;
    border: 1px solid #000;
    font-size: 13px;
    border-radius: 4px;
}
.vertical-tree > ul > li::before, 
.vertical-tree > ul > li::after{
    border: 0;
}
.vertical-tree li:last-child::before{ 
        height: 34px;
}
.vertical-tree li a:hover, 
.vertical-tree li a:hover+ul li a {
    background-color: #000;
    color: #fff;
    border: 1px solid #000;
}
.vertical-tree li a:hover+ul li::after, 
.vertical-tree li a:hover+ul li::before, 
.vertical-tree li a:hover+ul::before, 
.vertical-tree li a:hover+ul ul::before{
    border-color:  #000;
}