/* ==========================================================================
   LAYOUT — camada 3 da arquitetura ITCSS
   Containers, header, footer, grids estruturais. Mobile-first.
   Breakpoints: 480 / 768 / 1024 / 1280px.
   ========================================================================== */

/* --- Container central ----------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-5);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}

/* --- Seções ------------------------------------------------------------------ */
.section {
  padding-block: var(--space-16);
}

@media (min-width: 1024px) {
  .section { padding-block: var(--space-24); }
}

.section__header {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: var(--space-12);
}

.section__eyebrow {
  display: inline-block;
  font-size: var(--text-tiny);
  font-weight: 800;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--space-3);
}

.section__header p {
  color: var(--cream-muted);
  margin-top: var(--space-4);
  margin-inline: auto;
}

/* Faixa elevada de contraste (usada na seção final de conversão) */
.section--raised {
  background-color: var(--surface-high);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* --- Header ----------------------------------------------------------------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: color-mix(in srgb, var(--background) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-height);
}

.header__brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

/* Bloco à direita: navegação + idioma + CTA */
.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* --- Navegação principal ------------------------------------------------------ */
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav__link {
  color: var(--cream-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--text-small);
  padding: var(--space-2) 0;
}

.nav__link:hover { color: var(--cream); }

.nav__link[aria-current='page'] {
  color: var(--gold-soft);
  border-bottom: 2px solid var(--gold);
}

/* Botão hambúrguer (só aparece até 900px) */
.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  color: var(--cream);
  cursor: pointer;
}

.nav__toggle svg { width: 22px; height: 22px; }

/* Ícones abrir/fechar alternados via aria-expanded */
.nav__toggle .nav__icon-close { display: none; }
.nav__toggle[aria-expanded='true'] .nav__icon-open { display: none; }
.nav__toggle[aria-expanded='true'] .nav__icon-close { display: block; }

/* Menu móvel: painel abaixo do header em telas <= 900px */
@media (max-width: 900px) {
  .nav__toggle { display: inline-flex; align-items: center; }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4) var(--space-5) var(--space-6);
    display: none;
  }

  /* Sem JS o menu fica visível via :target? Não: mantemos o menu acessível
     porque os mesmos links existem no rodapé (progressive enhancement). */
  .nav.is-open { display: block; }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .nav__link {
    display: block;
    padding: var(--space-3) var(--space-2);
    font-size: var(--text-body);
  }

  /* Mantém o CTA compacto no header móvel sem alterar o texto acessível. */
  .btn.btn--sm.header__cta {
    display: inline-flex;
    font-size: 0;
  }

  .header__cta::before {
    content: 'Open';
    font-size: var(--text-small);
  }

  html[lang^='pt'] .header__cta::before { content: 'Abrir'; }
}

@media (min-width: 901px) {
  .header__cta { display: inline-flex; }
}

/* --- Seletor de idioma ---------------------------------------------------------- */
.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.lang-switch__option {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-tiny);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--cream-muted);
}

.lang-switch__option:hover { color: var(--cream); }

.lang-switch__option[aria-current='true'] {
  background-color: var(--gold);
  color: var(--background);
}

/* --- Footer ------------------------------------------------------------------------ */
.footer {
  border-top: 1px solid var(--border);
  background-color: var(--surface);
  padding-block: var(--space-16) var(--space-8);
  margin-top: var(--space-16);
}

.footer__grid {
  display: grid;
  gap: var(--space-10);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer__title {
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: var(--space-4);
}

.footer__list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.footer__link {
  color: var(--cream-muted);
  text-decoration: none;
  font-size: var(--text-small);
}

.footer__link:hover { color: var(--cream); }

.footer__desc {
  color: var(--cream-muted);
  font-size: var(--text-small);
  max-width: 40ch;
  margin-top: var(--space-4);
}

.footer__bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: var(--text-small);
  color: var(--cream-muted);
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

/* --- Grades utilitárias --------------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

@media (min-width: 480px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--2-lg { grid-template-columns: repeat(2, 1fr); }
}