/* ==========================================================================
   Layout - Header, menu, footer, grid de secoes
   ========================================================================== */

/* ---------- Header ---------- */
.cabecalho {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--altura-header);
  background: rgba(24, 24, 27, 0.96);
  backdrop-filter: blur(8px);
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cabecalho__conteudo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--spacing-lg);
}

.cabecalho__logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.cabecalho__logo img {
  height: 54px;
  max-height: 54px;
  width: auto;
  object-fit: contain;
}

.cabecalho__nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  flex: 1;
  justify-content: center;
}

.cabecalho__link {
  color: var(--ox-text-inverse-muted);
  font-size: var(--font-size-base);
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: color var(--transicao), background var(--transicao);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.cabecalho__link:hover,
.cabecalho__link:focus-visible,
.cabecalho__link[aria-current="page"] {
  color: var(--ox-white);
  background: rgba(255, 255, 255, 0.06);
}

.cabecalho__link .fa-chevron-down {
  font-size: 0.65rem;
  transition: transform var(--transicao);
}

.cabecalho__item--dropdown:hover .fa-chevron-down,
.cabecalho__item--dropdown.aberto .fa-chevron-down {
  transform: rotate(180deg);
}

.cabecalho__acoes {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.cabecalho__item {
  position: relative;
}

/* ---------- Megamenu de Segmentos ---------- */
.megamenu {
  position: fixed;
  top: var(--altura-header);
  left: 0;
  right: 0;
  background: var(--ox-white);
  border-top: 3px solid var(--ox-primary);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transicao), transform var(--transicao), visibility var(--transicao);
}

.cabecalho__item--dropdown:hover .megamenu,
.cabecalho__item--dropdown.aberto .megamenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.megamenu__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.megamenu__coluna-titulo {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ox-primary);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  display: block;
}

.megamenu__lista {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4px var(--spacing-md);
}

.megamenu__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--ox-text);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: background var(--transicao), color var(--transicao);
}

.megamenu__link i {
  color: var(--ox-primary);
  width: 16px;
  text-align: center;
  font-size: 0.85em;
}

.megamenu__link:hover,
.megamenu__link:focus-visible {
  background: #FFF1F1;
  color: var(--ox-primary-dark);
}

/* ---------- Botao menu mobile ---------- */
.cabecalho__toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--ox-white);
  font-size: 1.5rem;
  padding: var(--spacing-xs);
}

/* ---------- Rodape ---------- */
.rodape {
  background: var(--ox-graphite);
  color: var(--ox-text-inverse-muted);
  padding-top: var(--spacing-3xl);
}

.rodape__topo {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.rodape__marca img {
  height: 96px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
  margin-bottom: var(--spacing-md);
}

.rodape__resumo {
  font-size: var(--font-size-sm);
  max-width: 320px;
  margin-bottom: var(--spacing-md);
}

.rodape__coluna-titulo {
  color: var(--ox-white);
  font-size: var(--font-size-sm);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.rodape__coluna ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rodape__coluna a {
  font-size: var(--font-size-sm);
  transition: color var(--transicao);
}

.rodape__coluna a:hover {
  color: var(--ox-white);
}

.rodape__redes {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.rodape__redes a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transicao), color var(--transicao);
}

.rodape__redes a:hover {
  background: var(--ox-primary);
  color: var(--ox-white);
}

.rodape__base {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) 0;
  font-size: var(--font-size-xs);
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* ---------- Grids reutilizaveis ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

/* ---------- Responsivo ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .rodape__topo { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .cabecalho__nav,
  .cabecalho__acoes .cabecalho__link--desktop {
    display: none;
  }

  .cabecalho__toggle {
    display: inline-flex;
  }

  .cabecalho.menu-aberto .cabecalho__nav {
    display: flex;
    position: fixed;
    top: var(--altura-header);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--ox-graphite);
    flex-direction: column;
    align-items: stretch;
    padding: var(--spacing-lg);
    overflow-y: auto;
    gap: var(--spacing-xs);
  }

  .cabecalho.menu-aberto .cabecalho__link {
    padding: var(--spacing-md);
    font-size: var(--font-size-md);
    justify-content: space-between;
  }

  .megamenu {
    position: static;
    box-shadow: none;
    border-top: none;
    border-left: 2px solid var(--ox-primary);
    background: rgba(255, 255, 255, 0.04);
    margin: var(--spacing-xs) 0 var(--spacing-xs) var(--spacing-md);
    padding: var(--spacing-md);
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .cabecalho__item--dropdown.aberto .megamenu {
    display: block;
  }

  .megamenu__grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .megamenu__coluna-titulo {
    color: var(--ox-primary);
  }

  .megamenu__link {
    color: var(--ox-text-inverse-muted);
  }

  .megamenu__link:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--ox-white);
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

  .rodape__topo {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .cabecalho__logo img {
    height: 46px;
    max-height: 46px;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }
}