#app-loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #ffffff;
    z-index: 999999;
}

.app-loading-spinner {
    width: 80px;
    height: 80px;
    border: 10px solid #e5e5e5;
    border-top-color: #007bff;
    border-radius: 50%;
    animation: app-loading-spin 1s linear infinite;
}

/* Razor에서 @keyframes → @@keyframes 로 */
@keyframes app-loading-spin {
    0% {
        transform: rotate(0deg);
    }

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