/* Alster+ page intro. Only the active loader changes viewport behaviour. */
html.alster-loading[data-alster-loader-lock] {
    overflow: hidden !important;
    overscroll-behavior: none;
}

html.alster-loading[data-alster-loader-lock="overlay"] {
    scrollbar-gutter: auto;
}

html.alster-loading[data-alster-loader-lock="classic"] {
    scrollbar-gutter: stable;
}

#alster-loader,
#alster-loader * {
    box-sizing: border-box;
}

#alster-loader {
    display: none;
    position: fixed;
    z-index: 2147483646;
    inset: 0;
    width: 100vw;
    height: auto;
    margin: 0;
    padding: 0;
    overflow: hidden;
    isolation: isolate;
    border: 0;
    background: transparent;
    color: #fff;
    pointer-events: auto;
    touch-action: none;
}

html.alster-loading #alster-loader {
    display: block;
}

#alster-loader[data-phase="opening"] {
    pointer-events: none;
}

#alster-loader .alster-loader__panel {
    position: absolute;
    z-index: 0;
    width: calc(50vmax + 2px);
    height: calc(50vmax + 2px);
    margin: 0;
    padding: 0;
    border: 0;
    background: #181818;
    backface-visibility: hidden;
    will-change: transform;
    pointer-events: auto;
}

#alster-loader [data-corner="tl"] {
    right: calc(50% - 1px);
    bottom: calc(50% - 1px);
}

#alster-loader [data-corner="tr"] {
    left: calc(50% - 1px);
    bottom: calc(50% - 1px);
}

#alster-loader [data-corner="bl"] {
    right: calc(50% - 1px);
    top: calc(50% - 1px);
}

#alster-loader [data-corner="br"] {
    left: calc(50% - 1px);
    top: calc(50% - 1px);
}

#alster-loader .alster-loader__mark {
    position: absolute;
    z-index: 1;
    left: 50%;
    top: 50%;
    width: var(--alster-loader-plus-size, 16px);
    height: var(--alster-loader-plus-size, 16px);
    margin: 0;
    padding: 0;
    transform: translate(-50%, -50%);
    transform-origin: center;
    pointer-events: none;
}

#alster-loader .alster-loader__mark svg {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
    fill: none;
    stroke: #fff;
    stroke-width: 1.6;
    stroke-linecap: butt;
}

#alster-loader .alster-loader__stroke {
    stroke-dasharray: 20;
    stroke-dashoffset: 20;
}

@media (prefers-reduced-motion: reduce) {
    html.alster-loading #alster-loader {
        display: none !important;
    }
}