/* Somente a barra superior: nenhuma regra de formulário ou container global. */
.hub-navegacao {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    max-width: var(--page-width);
    gap: 8px;
    padding: 14px 16px;
    background: #ebf2fa;
    border: 0;
    border-radius: 26px;
    box-shadow: none;
    overflow-x: auto;
}
.hub-navegacao .btn-aba {
    min-height: 104px;
    margin: 0;
    padding: 14px 8px;
    border: 1px solid #e5edf6;
    border-radius: 20px;
    background: var(--bg-card);
    color: var(--primary);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    justify-content: center;
    text-align: center;
}
.hub-navegacao .btn-aba > span {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}
.hub-navegacao .btn-aba .icone {
    width: 22px;
    height: 22px;
    margin: 0;
    color: var(--primary);
}
.hub-navegacao .btn-aba.ativa {
    background: #deebfc;
    border-color: #3983ff;
    font-weight: 600;
}
body.dark-mode .hub-navegacao { background: var(--bg-subtle); }
body.dark-mode .hub-navegacao .btn-aba { border-color: var(--border); }
body.dark-mode .hub-navegacao .btn-aba.ativa {
    background: var(--primary-light);
    border-color: var(--primary);
}
@media (max-width: 600px) {
    .hub-navegacao {
        grid-template-columns: repeat(5, minmax(88px, 1fr));
        padding: 10px;
        gap: 6px;
        border-radius: 22px;
    }
    .hub-navegacao .btn-aba { min-height: 88px; padding: 12px 4px; }
}