/* Overlay translúcido cobrindo todo o bloco content */
#spinner-overlay {
    display: none; /* escondido inicialmente */
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255, 255, 255, 0.7);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Spinner centralizado - pode usar spinner Bootstrap */
.spinner-border {
    width: 3rem;
    height: 3rem;
}

#spinner-message {
    margin-top: 1rem;
    font-size: 1.25rem;
    color: #333;
    font-weight: 500;
}