@media (max-width: 800px) {
    .dossie-conteudo-hierarquico {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 600px) {
    #tela-dossie-main { padding: 15px; }
    .dossie-header-title h1 { font-size: 1.4rem; }
    .valor-finance { font-size: 1.6rem; }
    .action-btn { width: 38px; height: 38px; font-size: 0.9rem; }
    .sessao-checkout-box { position: static; padding: 15px; }
}