.barra-topo {
    grid-column: 1 / -1;
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--barra-topo-altura);
    padding: 0 1.5rem;
    background-color: var(--color-surface-container-low);
    border-bottom: 1px solid var(--color-outline-variant);
}

.barra-topo__esquerda {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.barra-topo__marca {
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    text-transform: uppercase;
    color: var(--color-on-surface);
}

.barra-topo__nav {
    display: none;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .barra-topo__nav {
        display: flex;
    }
}

.barra-topo__nav-link {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-on-surface-variant);
    text-decoration: none;
    transition: background-color 0.15s ease;
}

.barra-topo__nav-link:hover {
    background-color: var(--color-surface-container);
}

.barra-topo__nav-link--ativo {
    font-weight: 700;
    color: var(--color-on-surface);
    border-bottom: 2px solid var(--color-primary);
}

.barra-topo__direita {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.barra-topo__icone {
    font-size: 1.25rem;
    color: var(--color-on-surface-variant);
    cursor: pointer;
    transition: color 0.15s ease;
}

.barra-topo__icone:hover {
    color: var(--color-on-surface);
}

.barra-topo__avatar {
    width: 2rem;
    height: 2rem;
    background-color: var(--color-surface-container-highest);
}