* {
    margin: 0;
    padding: 0;
}
iframe {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}
.bg-black {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    background-color: #000;
}
.bg-black.hide {
    display: none;
}
.bg-image {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
    transition: 500ms;
    object-fit: cover;
}

.bg-loader, #progressbar {
    position: fixed;
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
    z-index: 15;
    max-width: 160px;
    width: 20%;
}
.bg-image.hide, .bg-loader.hide, #progressbar.hide { opacity: 0 }
.bg-image.hide-2, .bg-loader.hide-2, #progressbar.hide-2 { opacity: 0; display: none }

.logo-connect, .logo-disconnect {
    position: fixed;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    width: 200px;
}
.logo-connect.hide, .logo-disconnect.hide {
    display: none;
}

.input-helper {
    position: fixed;
    top: 50%;
    left: -200%;
}
.full-screen {
    position: fixed;
    z-index: 7;
    top: 20px;
    right: 32px;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

/* loader */


@keyframes progress {
    0% { --percentage: 0; }
    100% { --percentage: var(--value); }
}

@property --percentage {
    syntax: '<number>';
    inherits: true;
    initial-value: 0;
}

[role="progressbar"] {
    --percentage: var(--value);
    --primary: #FDFBF8;
    /*--secondary: #666;*/
    --secondary: rgba(60, 60, 60, 0.2);
    --size: 120px;
    animation: progress 1s forwards;
    width: var(--size);
    aspect-ratio: 1;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    display: grid;
    place-items: center;
}

[role="progressbar"]::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: conic-gradient(var(--primary) calc(var(--percentage) * 1%), var(--secondary) 0);
    mask: radial-gradient(white 55%, transparent 0);
    mask-mode: alpha;
    -webkit-mask: radial-gradient(#0000 60%, #000 0);
    -webkit-mask-mode: alpha;
    transform: rotate(180deg);
    transition: 600ms;
}
body {
    background-color: cornflowerblue;
}

[role="progressbar"] span {
    counter-reset: percentage var(--value);
    content: counter(percentage) '%';
    font-family: Helvetica, Arial, sans-serif;
    font-size: calc(var(--size) / 5);
    color: var(--primary);
}
[role="progressbar"].rotating::before{
    animation: 3s linear infinite rotationInfinite;
}
@keyframes rotationInfinite {
    0% {transform: rotate(180deg);}
    100% {transform: rotate(540deg);}
}