.fx-loader-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.fx-loader-overlay.is-active {
    opacity: 1;
    visibility: visible;
}

.fx-loader-spinner {
    width: 54px;
    height: 54px;
    border: 4px solid rgba(255, 255, 255, 0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: fx-spin 0.9s linear infinite;
}

@keyframes fx-spin {
    to { transform: rotate(360deg); }
}

body.fx-loading {
    overflow: hidden;
}