.kndtec-postback-guard {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.kndtec-postback-guard[hidden] {
    display: none !important;
}

.kndtec-postback-guard__content {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(17, 24, 39, 0.92);
    color: #ffffff;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.25);
    max-width: min(92vw, 520px);
}

.kndtec-postback-guard__spinner {
    width: 18px;
    height: 18px;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: rgba(255, 255, 255, 0.95);
    animation: kndtecPostbackGuardSpin 0.85s linear infinite;
    flex: 0 0 auto;
}

.kndtec-postback-guard__text {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: 0.01em;
    flex: 1 1 auto;
}

@keyframes kndtecPostbackGuardSpin {
    to {
        transform: rotate(360deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .kndtec-postback-guard__spinner {
        animation: none;
    }
}