.msc-sequence {
    position: relative;
    width: 100%;
    height: var(--msc-scroll-height, 500vh);
    margin: 0;
    background: transparent;
    isolation: isolate;
}

.msc-sequence--module {
    max-width: var(--msc-max-width, 1400px);
    margin-inline: auto;
}

.msc-sequence--flow {
    height: auto;
}

.msc-stage {
    position: sticky;
    top: var(--msc-stage-top, 15vh);
    width: 100%;
    height: var(--msc-stage-height, 70vh);
    overflow: hidden;
    background: #000;
}

.msc-sequence--module .msc-stage {
    border-radius: var(--msc-radius, 8px);
}

.msc-sequence--flow .msc-stage {
    position: relative;
    top: auto;
}

.msc-canvas,
.msc-poster {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    background: #000;
}

.msc-poster {
    object-fit: contain;
}

.msc-loader {
    position: absolute;
    left: 50%;
    bottom: max(28px, env(safe-area-inset-bottom));
    z-index: 2;
    width: min(260px, calc(100% - 48px));
    color: rgba(255, 255, 255, 0.74);
    font: 500 11px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    letter-spacing: 0.08em;
    text-align: center;
    text-transform: uppercase;
    transform: translateX(-50%);
    transition: opacity 360ms ease, visibility 360ms ease;
}

.msc-loader.is-hidden {
    visibility: hidden;
    opacity: 0;
}

.msc-loader__bar {
    display: block;
    width: 100%;
    height: 1px;
    margin-bottom: 12px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.18);
}

.msc-loader__bar > span {
    display: block;
    width: 0;
    height: 100%;
    background: #fff;
    transition: width 160ms linear;
}

@media (prefers-reduced-motion: reduce) {
    .msc-sequence {
        height: var(--msc-stage-height, 70vh);
    }

    .msc-stage {
        position: relative;
        top: 0;
    }

    .msc-loader {
        display: none;
    }
}