/* Tela inteira cobrindo o site */
#loader {
    position: fixed;
    inset: 0;
    background: #353535f2;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.4s ease;
}

/* Centraliza o conteúdo interno */
.spinner {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Controla o tamanho real do GIF */
.spinner img {
    width: 250px;     /* ajuste como quiser */
    height: auto;
    filter: drop-shadow(0 0 10px rgba(0, 0, 0, 0.5));
}