/* Pantalla de carga que bloquea el formulario al enviar (Crear/Actualizar referido) */
.form-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}
.form-loading-content {
    text-align: center;
}
.form-loading-spinner {
    width: 3rem;
    height: 3rem;
}
.form-loading-text {
    margin-top: 1rem;
    font-size: 1.1rem;
    color: #333;
}