html, body { height: 100%; margin: 0; padding: 0; overflow: hidden; background: #f1f5f9; }
.layout-total { display: flex; flex-direction: column; height: 100%; }
#conteudo { flex: 1; overflow-y: auto; padding: 10px; }

/* Grid de anúncios: 2 por linha */
.grid-anuncios { 
    display: grid; 
    grid-template-columns: repeat(2, 1fr); 
    gap: 10px; 
}

/* Barra inferior estilo OLX */
.bottom-nav-olx {
    display: flex;
    justify-content: space-around;
    background: #0f172a;
    padding: 10px;
    color: white;
}
.nav-item-olx { background: none; border: none; color: #94a3b8; cursor: pointer; }

header { background: #0f172a; color: white; padding: 10px; text-align: center; }