/* Shell: barra inferior no celular, lateral recolhida no tablet, lateral completa no desktop. */

.shell { min-height: 100dvh; }

/* ---------- Topo (só celular) ---------- */
.topo {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--e-3);
  padding: max(var(--e-2), env(safe-area-inset-top)) max(var(--e-4), env(safe-area-inset-right)) var(--e-2) max(var(--e-4), env(safe-area-inset-left));
  background: color-mix(in srgb, var(--papel) 92%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.marca {
  display: inline-flex;
  align-items: center;
  gap: var(--e-2);
  min-height: 48px;
  color: var(--grafite);
  font-weight: 600;
  font-size: var(--t-20);
  text-decoration: none;
  letter-spacing: -0.01em;
}

/* ---------- Navegação ---------- */
.navegacao {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 20;
  padding: 0 max(var(--e-2), env(safe-area-inset-right)) env(safe-area-inset-bottom) max(var(--e-2), env(safe-area-inset-left));
  border-top: 1px solid var(--linha);
  background: var(--superficie);
}
.navegacao .marca,
.navegacao__rodape { display: none; }

.nav-lista {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
}
.nav-lista li { flex: 1; min-width: 0; }

.nav-link {
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 2px;
  height: var(--altura-barra-inferior);
  color: var(--grafite-suave);
  font-size: 0.75rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--raio-campo);
}
.nav-link__icone { position: relative; display: grid; place-items: center; }
.nav-link__icone svg { width: 24px; height: 24px; }
.nav-link__texto { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.nav-link[aria-current="page"] { color: var(--tinta); font-weight: 600; }
/* A bolinha preenchida marca onde você está */
.nav-link[aria-current="page"] .nav-link__icone::after {
  content: "";
  position: absolute;
  top: -6px;
  right: -8px;
  width: 7px;
  height: 7px;
  border-radius: var(--raio-bolinha);
  background: var(--tinta);
}

/* ---------- Conteúdo ---------- */
.conteudo {
  width: 100%;
  max-width: var(--largura-max);
  padding: var(--e-4) max(var(--e-4), env(safe-area-inset-right)) calc(var(--altura-barra-inferior) + env(safe-area-inset-bottom) + var(--e-6)) max(var(--e-4), env(safe-area-inset-left));
}
.conteudo:focus { outline: none; }

/* ---------- Tablet: lateral só com ícones ---------- */
@media (min-width: 768px) {
  .shell {
    display: grid;
    grid-template-columns: var(--largura-lateral-recolhida) minmax(0, 1fr);
  }
  .topo { display: none; }

  .navegacao {
    position: sticky;
    top: 0;
    inset: auto;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--e-5);
    padding: var(--e-5) var(--e-2);
    border-top: 0;
    border-right: 1px solid var(--linha);
    background: var(--papel);
  }
  .navegacao .marca { display: inline-flex; }
  .navegacao .marca__nome { display: none; }
  .navegacao__rodape { display: block; margin-top: auto; }

  .nav-lista { flex-direction: column; gap: var(--e-1); }
  .nav-link { width: 56px; height: 56px; }
  .nav-link__texto { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .nav-link:hover { background: var(--tinta-fundo); color: var(--grafite); }
  .nav-link[aria-current="page"] { background: var(--tinta-fundo); }

  .conteudo { padding: var(--e-6) var(--e-6) var(--e-8); }
}

/* ---------- Desktop: lateral com texto ---------- */
@media (min-width: 1024px) {
  .shell { grid-template-columns: var(--largura-lateral) minmax(0, 1fr); }

  .navegacao { align-items: stretch; padding: var(--e-5) var(--e-4); }
  .navegacao .marca { padding: 0 var(--e-3); }
  .navegacao .marca__nome { display: inline; }
  .navegacao__rodape { padding: 0 var(--e-1); }

  .nav-link {
    width: auto;
    height: 48px;
    display: flex;
    justify-content: flex-start;
    gap: var(--e-3);
    padding: 0 var(--e-3);
    font-size: var(--t-16);
  }
  .nav-link__texto { position: static; width: auto; height: auto; clip: auto; }
  .nav-link[aria-current="page"] .nav-link__icone::after { display: none; }

  .conteudo { padding: var(--e-7) var(--e-7) var(--e-8); }
}