/* =========================================================
   HEADER — componente compartilhado (todas as páginas)
   Marcação gerada por header.js dentro de <header id="site-header">
   ========================================================= */
.site-header { padding-block: var(--space-fluid-32); }
.site-header__inner {
  width: 100%; max-width: var(--maxw); margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-24);
}
.site-header .logo {
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--fs-logo, 46px); line-height: 1; letter-spacing: -0.01em;
  text-transform: uppercase; text-decoration: none; color: var(--color-fg);
}
.site-header .nav__list { display: flex; gap: var(--space-fluid-64); list-style: none; margin: 0; padding: 0; }
.site-header .nav__link {
  font-family: var(--font-body);
  font-size: var(--fs-body, 16px); letter-spacing: 0.16em; color: var(--color-fg);
  text-decoration: none; padding-bottom: var(--space-8); border-bottom: 2px solid transparent;
  transition: border-color .2s; line-height: var(--lh-body); }
.site-header .nav__link:hover { border-bottom-color: currentColor; }
.site-header a:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; border-radius: var(--radius-sm); }
.site-header .nav__list { align-items: center; }
.site-header .lang { display: inline-flex; align-items: center; gap: var(--space-4); padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-pill); font-family: var(--font-body); }
.site-header .lang__opt { font-size: var(--fs-xs); font-weight: 600; letter-spacing: .06em; padding: 0 var(--space-12); border-radius: var(--radius-pill); color: var(--color-muted); text-decoration: none; line-height: var(--lh-xs); }
.site-header a.lang__opt:hover { color: var(--color-fg); background: var(--color-surface-alt); }
.site-header .lang__opt.is-active { background: var(--color-fg); color: var(--color-on-dark); }
@media (max-width: 600px) {
  .site-header .nav__list { gap: var(--space-24); }
  .site-header .nav__link { letter-spacing: .1em; }
}
/* Com o seletor de idioma, o menu precisa caber no celular */
@media (max-width: 600px) {
  .site-header .nav__list:has(.lang) { gap: var(--space-16); }
  .site-header .nav__list:has(.lang) .nav__link { letter-spacing: .04em; font-size: var(--fs-small); line-height: var(--lh-small); }
  .site-header .lang__opt { padding: 0 var(--space-8); }
}
@media (max-width: 380px) {
  .site-header__inner:has(.lang) { gap: var(--space-12); }
  .site-header .nav__list:has(.lang) { gap: var(--space-12); }
  .site-header .nav__list:has(.lang) .nav__link { font-size: var(--fs-small); letter-spacing: .02em; line-height: var(--lh-small); }
  .site-header .logo { font-size: 30px; }
}