/* CSS para o overlay de carregamento e o spinner */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.3s ease;
}

    /* Oculta o overlay por padrão */
    .loading-overlay.hidden {
        opacity: 0;
        visibility: hidden;
    }

    .loading-overlay.visible {
        opacity: 1;
        visibility: visible;
    }

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #0f0f67;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.footer {
    left: 0;
    bottom: 0;
    width: 100%;
    background-color: #0f0f67;
    color: white;
    text-align: center;
}