/* Page Loader – verhindert Sprünge beim Seitenwechsel, zeigt Spinner bis geladen */
html.page-loading body { opacity: 0; transition: opacity 0.35s ease-out; }
html.page-loading .page-loader { display: flex; }
html:not(.page-loading) body { opacity: 1; }
.page-loader {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: #1a1a2e;
    align-items: center;
    justify-content: center;
    transition: opacity 0.35s ease-out;
}
.page-loader.page-loader-fadeout { opacity: 0; pointer-events: none; }
.page-loader-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255,255,255,0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: page-loader-spin 0.9s linear infinite;
}
@keyframes page-loader-spin {
    to { transform: rotate(360deg); }
}