.subnav{display:flex;gap:8px;flex-wrap:wrap}.subnav button{background:var(--botao);color:var(--botao-texto);font-weight:750}.mensagem{display:none;margin:12px 0;padding:11px;border-radius:8px}.mensagem.ok{display:block;background:#e8f8f1;color:#075b3d}.mensagem.erro{display:block;background:#fee;color:#a00}input[readonly]{background:#edf2f5}.cards{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}