body{
    padding: 0;
    margin: 0;
    font-family: Arial;
}
header{
    position: fixed;
    background: rgba(65, 138, 46, 0.9);
    padding: 10px 20px;
    z-index: 10;
    left: 0;
    right: 0;
    top: 0;
    display: flex;
    align-items: center;
    gap: 20px;
}
#text{
    font-weight: 600;
}
#text p{
    color: #FFF;
    font-size: 16px;
    font-weight: bold;
    padding: 0;
    margin: 0;
}
#timer{
    font-size: 40px;
    width: 48px;
    flex: 0 0 48px;
    text-align: center;
    font-weight: bold;
    color: #FFF;
    line-height: 56px;
}
.back{
    color: #FFF;
    background: #3e3f3a;
    padding: 7px 10px;
    text-decoration: none;
    font-family: arial;
    font-size: 14px;
    border-radius: 4px;
    margin-left: auto;
    &:before{
        content: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512' width='16'%3E%3Cpath d='M9.4 233.4c-12.5 12.5-12.5 32.8 0 45.3l128 128c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L109.3 288 480 288c17.7 0 32-14.3 32-32s-14.3-32-32-32l-370.7 0 73.4-73.4c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0l-128 128z' fill='white'/%3E%3C/svg%3E");
    }
}
video{
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
}
img{
    width: 100vw;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
}
canvas, svg, svg g{
    width: 100vw;
    height: 100vh;
    position: absolute;
    z-index: 1;
}

svg{
    z-index: 200;
}
.video-block{
    transform: scaleX(-1);
    -o-transform: scaleX(-1);
    -ms-transform: scaleX(-1);
    -moz-transform: scaleX(-1);
    -webkit-transform: scaleX(-1);
}
.hidden{
    display: none;
}
.rotate-screen-warning{
    position: absolute;
    top: 50%; right: 50%;
    transform: translate(50%,-50%);
    background: red;
    padding: 20px;
    color: #FFF;
    border-radius: 20px;
    z-index: 1000;
}
@media (orientation: landscape) {
    .rotate-screen-warning{
        display: none;
    }
}