/* Estilos para el indicador de carga */
.js-loading * {
    visibility: hidden;
}
.js-loading .loading-indicator {
    visibility: visible;
}
.loading-indicator {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    z-index: 9999;
}
.loading-spinner {
    width: 3rem;
    height: 3rem;
    border: 0.25rem solid #1e3c72;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}