/* Page Overlay (Server-Side SPA Pattern) */
.page-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease-out, visibility 0.15s ease-out;
}

.page-overlay.active {
    opacity: 1;
    visibility: visible;
}

.page-overlay.fade-out {
    opacity: 0;
    transition: opacity 0.12s ease-in;
}

@media (prefers-reduced-motion: reduce) {
    .page-overlay,
    .page-overlay.fade-out {
        transition: none;
    }
}