html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    box-sizing: border-box;
}

*, *:before, *:after {
    box-sizing: inherit;
}

canvas {
    display: block;
}

#unity-container {
    width: 100%;
    height: 100%;
    position: absolute;
}

#unity-canvas {
    width: 100%;
    height: 100%;
    background: #231F20;
}

#loading-cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: flex-start; /* align from top */
    align-items: center;
    flex-direction: column;
    z-index: 1000;
    background: #231F20;
    overflow: hidden;
}

#unity-loading-bar {
    width: 100%;
    max-width: 100%;
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 0;
}


#unity-logo {
    text-align: center;
    margin-top: 0;
}

#unity-progress-bar-empty {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}


#unity-progress-bar-full {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    mask-image: linear-gradient(to bottom, black 0%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 100%);
    mask-repeat: no-repeat;
    -webkit-mask-repeat: no-repeat;
    mask-size: 100% 0%;
    -webkit-mask-size: 100% 0%;
    transition: mask-size 0.1s linear, -webkit-mask-size 0.1s linear;
}

#unity-progress-bar-full img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.spinner,
.spinner:after {
    border-radius: 50%;
    width: 5em;
    height: 5em;
}

.spinner {
    margin: 10px;
    font-size: 10px;
    position: relative;
    text-indent: -9999em;
    border-top: 1.1em solid rgba(255, 255, 255, 0.2);
    border-right: 1.1em solid rgba(255, 255, 255, 0.2);
    border-bottom: 1.1em solid rgba(255, 255, 255, 0.2);
    border-left: 1.1em solid #ffffff;
    transform: translateZ(0);
    animation: spinner-spin 1.1s infinite linear;
}

@keyframes spinner-spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

#unity-fullscreen-button {
    position: absolute;
    right: 10px;
    bottom: 10px;
    width: 38px;
    height: 38px;
    background: url('fullscreen-button.png') no-repeat center;
    background-size: contain;
}