/* ---------------------------------------------- /*
 * Home
/* ---------------------------------------------- */

#home {
    background-image: url(../images/lvvius_x.jpg);
    background-color: #222;
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-position: 50% 25%;
    padding: 0;
    height: 1200px;
  
}

.home-overlay {
    background-color: rgba(44, 62, 80, 0.3);
    background-image: url("../images/pattern.png");
    background-repeat: repeat;
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%;
    z-index: 0;
}

.intro {
    position: absolute;
    width: 100%;
    top: 50%;
    left: 0;
    text-align: center;
    -webkit-transform: translate(0%, -50%);
    -moz-transform: translate(0%, -50%);
    -ms-transform: translate(0%, -50%);
    -o-transform: translate(0%, -50%);
    transform: translate(0%, -50%);
    padding: 0 15px;
}

    .intro h1 {
        font-weight: 800;
    }

.start {
    font-family: Raleway, "Times New Roman", Times, sans-serif;
    font-size: 30px;
    font-style: normal;
    text-transform: none;
    margin: 8px 0;
}


.tree, .tree ul {
    margin:0;
    padding:0;
    list-style:none
}
.tree ul {
    margin-left:1em;
    position:relative
}
.tree ul ul {
    margin-left:.5em
}
.tree ul:before {
    content:"";
    display:block;
    width:0;
    position:absolute;
    top:0;
    bottom:0;
    left:0;
    border-left:3px solid
}
.tree li {
    margin:0;
    padding:0 1em;
    line-height:2em;
    color:#369;
    font-weight:700;
    position:relative
}
.tree ul li:before {
    content:"";
    display:block;
    width:10px;
    height:0;
    border-top:1px solid;
    margin-top:-1px;
    position:absolute;
    top:1em;
    left:0
}
.tree ul li:last-child:before {
    background:#fff;
    height:auto;
    top:1em;
    bottom:0
}
.indicator {
    margin-right:0;
}
.tree li a {
    text-decoration: none;
    color:#369;
}
 .branch{
    white-space: nowrap;
}
.tree li button, .tree li button:active, .tree li button:focus {
    text-decoration: none;
    color:#369;
    border:none;
    background:transparent;
    margin:0 0 0 0;
    padding:0 0 0 0;
    outline: 0;
}

/* ---------------------------------------------- /*
 * плей лист видео
/* ---------------------------------------------- */
.video-container {
    width: 50%;
    height: 50%;
    margin-left: auto;
    margin-right: auto;
}

.video-container .plyr--video {
    aspect-ratio: 16 / 9;
}

.video-list {
    display: flex;
}

.change-video {
    box-shadow: 0 2px 5px rgba(0,0,0,0.2), 0 4px 6px rgba(0,0,0,0.2);
    
    border: 6px solid #BFE2FF;
    transition: box-shadow 0.3s linear;
    cursor: pointer;
    background: #BFE2FF;
    margin:2px;

}

    .change-video:nth-child(2) {
        margin-left: 16px;
        margin-right: 16px;
    }

    .change-video span {
    
        padding: 6px 12px 0 12px;
        font-size: 18px;
        font-family: 'Roboto', sans-serif;
    }

    .change-video:hover {
        box-shadow: 0 4px 12px rgba(0,0,0,0.2), 0 16px 20px rgba(0,0,0,0.2);
    }

    .change-video.active {
        border: 6px solid #00b3ff;
        box-shadow: 0 4px 12px rgba(0,0,0,0.2), 0 16px 20px rgba(0,0,0,0.2);
        color: #FFF;
        background: #00b3ff;
    }


.plyr {
    margin-left: auto;
    margin-right: auto;
    width: 100%;
  
}