.app-shell {
    min-height: 320px;
    position: relative;
}

.app-page-content {
    opacity: 1;
    transition: opacity 180ms ease;
}

.app-shell.is-changing .app-page-content {
    opacity: 0.45;
    pointer-events: none;
}

.app-page-spinner {
    align-items: center;
    background: rgba(255, 255, 255, 0.52);
    bottom: 0;
    display: none;
    justify-content: center;
    left: 0;
    min-height: 220px;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 20;
}

body[data-theme="dark"] .app-page-spinner {
    background: rgba(15, 23, 42, 0.45);
}

.app-shell.is-loading .app-page-spinner {
    display: flex;
}