/* Overlay loading eOffice — spinner kiểu iOS, không dùng #overlayLoading */

.eoffice-loader {
    --eoffice-loader-duration: 0.22s;
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 100%;
    min-height: 100dvh;
    min-height: -webkit-fill-available;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    touch-action: none;
    overscroll-behavior: none;
    -webkit-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    transition: opacity var(--eoffice-loader-duration) ease, visibility var(--eoffice-loader-duration) ease;
}

.eoffice-loader.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.eoffice-loader.is-hiding {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.eoffice-loader__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.18);
}

@supports ((backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px))) {
    .eoffice-loader__backdrop {
        background: rgba(0, 0, 0, 0.12);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }
}

.eoffice-loader__hud {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    border-radius: 16px;
    background: rgba(28, 28, 30, 0.78);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
    transform: scale(0.96);
    opacity: 0.92;
    transition: transform var(--eoffice-loader-duration) ease, opacity var(--eoffice-loader-duration) ease;
}

.eoffice-loader.is-visible:not(.is-hiding) .eoffice-loader__hud {
    transform: scale(1);
    opacity: 1;
}

.eoffice-loader__spinner {
    position: relative;
    width: 28px;
    height: 28px;
}

.eoffice-loader__spinner i {
    position: absolute;
    left: 50%;
    top: 0;
    width: 2.5px;
    height: 8px;
    margin-left: -1.25px;
    border-radius: 1.5px;
    background: #fff;
    transform-origin: 1.25px 14px;
    animation: eoffice-ios-fade 1s linear infinite;
}

.eoffice-loader__spinner i:nth-child(1) { transform: rotate(0deg); animation-delay: -0.9167s; }
.eoffice-loader__spinner i:nth-child(2) { transform: rotate(30deg); animation-delay: -0.8333s; }
.eoffice-loader__spinner i:nth-child(3) { transform: rotate(60deg); animation-delay: -0.75s; }
.eoffice-loader__spinner i:nth-child(4) { transform: rotate(90deg); animation-delay: -0.6667s; }
.eoffice-loader__spinner i:nth-child(5) { transform: rotate(120deg); animation-delay: -0.5833s; }
.eoffice-loader__spinner i:nth-child(6) { transform: rotate(150deg); animation-delay: -0.5s; }
.eoffice-loader__spinner i:nth-child(7) { transform: rotate(180deg); animation-delay: -0.4167s; }
.eoffice-loader__spinner i:nth-child(8) { transform: rotate(210deg); animation-delay: -0.3333s; }
.eoffice-loader__spinner i:nth-child(9) { transform: rotate(240deg); animation-delay: -0.25s; }
.eoffice-loader__spinner i:nth-child(10) { transform: rotate(270deg); animation-delay: -0.1667s; }
.eoffice-loader__spinner i:nth-child(11) { transform: rotate(300deg); animation-delay: -0.0833s; }
.eoffice-loader__spinner i:nth-child(12) { transform: rotate(330deg); animation-delay: 0s; }

.eoffice-loader__sr {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

body.eoffice-loader-open {
    overflow: hidden;
}

@keyframes eoffice-ios-fade {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0.15;
    }
}

@media (prefers-reduced-motion: reduce) {
    .eoffice-loader,
    .eoffice-loader__hud {
        transition-duration: 0.01ms;
    }

    .eoffice-loader__spinner i {
        animation: none;
        opacity: 0.45;
    }

    .eoffice-loader__spinner i:nth-child(1),
    .eoffice-loader__spinner i:nth-child(2),
    .eoffice-loader__spinner i:nth-child(12) {
        opacity: 1;
    }
}

@media print {
    .eoffice-loader {
        display: none !important;
    }
}