.app-loader-overlay {
    position: fixed;
    inset: 0;
    background: rgba(246, 248, 252, 0.72);
    backdrop-filter: blur(2px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
.app-loader-overlay.active { display: flex; }
.app-loader-spinner {
    width: 46px;
    height: 46px;
    border: 4px solid rgba(47, 107, 255, 0.18);
    border-top-color: #2f6bff;
    border-radius: 50%;
    animation: lc-spin 0.75s linear infinite;
}
@keyframes lc-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
    .app-loader-spinner { animation-duration: 1.4s; }
}