/**
 * =============================================================================
 * Navegação responsiva — hambúrguer (≤768px) + menu horizontal (desktop)
 * Vanilla CSS. Fundo #111, texto branco, hover suave, ícone → X ao abrir.
 * =============================================================================
 */

.site-nav {
  --site-nav-bg: #111;
  --site-nav-text: #ffffff;
  --site-nav-muted: rgba(255, 255, 255, 0.55);
  --site-nav-hover: rgba(255, 255, 255, 0.1);
  --site-nav-border: rgba(255, 255, 255, 0.08);
  /* altura da barra (1.ª linha da grid) — overlay começa aqui em baixo */
  --site-nav-bar-h: 72px;
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--site-nav-bg);
  border-bottom: 1px solid var(--site-nav-border);
}

/* ----- Grid desktop: marca | links | idiomas | (botão oculto) ----- */
.site-nav__grid {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  padding: 12px 0;
  position: relative;
  z-index: 1002;
  background: var(--site-nav-bg);
  isolation: isolate;
}

.site-nav__brand {
  grid-column: 1;
  grid-row: 1;
  color: var(--site-nav-text);
  text-decoration: none;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  transition: opacity 0.2s ease;
  justify-self: start;
}

.site-nav__brand:hover {
  opacity: 0.85;
}

.site-nav__panel {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-width: 0;
}

.site-nav__lang--desktop {
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
}

.site-nav__toggle {
  grid-column: 4;
  grid-row: 1;
  justify-self: end;
}

/* ----- Botão hambúrguer (reset ao estilo global `button` do assets.css) ----- */
.site-nav .site-nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  min-width: 46px;
  max-width: 46px;
  height: 46px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--site-nav-border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--site-nav-text);
  cursor: pointer;
  box-shadow: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.site-nav .site-nav__toggle:hover {
  filter: none;
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.15);
}

.site-nav .site-nav__toggle:focus {
  outline: none;
}

.site-nav .site-nav__toggle:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.45);
  outline-offset: 2px;
}

.site-nav__toggle-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 22px;
  pointer-events: none;
}

.site-nav__line {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
  transition: transform 0.3s ease, opacity 0.25s ease;
}

.site-nav--open .site-nav__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-nav--open .site-nav__line:nth-child(2) {
  opacity: 0;
}

.site-nav--open .site-nav__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ----- Lista e links ----- */
.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.site-nav__item {
  margin: 0;
}

.site-nav__link {
  display: block;
  color: var(--site-nav-text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    color 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease;
}

.site-nav__link:hover {
  color: #fff;
  background: var(--site-nav-hover);
  border-color: rgba(255, 255, 255, 0.12);
}

/* ----- Idiomas ----- */
.site-nav__lang {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.site-nav__lang a {
  color: var(--site-nav-muted);
  text-decoration: none;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.site-nav__lang a:hover {
  color: #fff;
  background: var(--site-nav-hover);
}

.site-nav__lang a.is-active {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.site-nav__lang--inpanel {
  display: none;
  justify-content: center;
  margin-top: auto;
  padding-top: 28px;
  border-top: 1px solid var(--site-nav-border);
}

/* Overlay: só mobile */
.site-nav__overlay {
  display: none;
}

/* =============================================================================
 * Mobile — duas colunas na barra; painel full-screen fixo + animação
 * =============================================================================
 */
@media (max-width: 768px) {
  .site-nav__grid {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
  }

  .site-nav__brand {
    grid-column: 1;
    grid-row: 1;
  }

  .site-nav .site-nav__toggle {
    display: inline-flex;
    grid-column: 2;
    grid-row: 1;
  }

  .site-nav__lang--desktop {
    display: none;
  }

  .site-nav__lang--inpanel {
    display: flex;
  }

  .site-nav__overlay {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    top: var(--site-nav-bar-h);
    bottom: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    pointer-events: none;
  }

  .site-nav--open .site-nav__overlay {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  /* 2.ª linha da grid: expande com animação (sem position:fixed → sem “buraco” na grelha) */
  .site-nav__panel {
    grid-column: 1 / -1;
    grid-row: 2;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    max-height: 0;
    overflow: hidden;
    padding: 0 max(20px, env(safe-area-inset-left, 0px)) 0 max(20px, env(safe-area-inset-right, 0px));
    margin: 0;
    background: var(--site-nav-bg);
    border-top: 1px solid transparent;
    opacity: 0;
    transform: translateY(-8px);
    transition:
      max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.3s ease,
      transform 0.3s ease,
      padding 0.35s ease,
      border-color 0.2s ease;
    pointer-events: none;
  }

  .site-nav--open .site-nav__panel {
    max-height: min(85vh, 520px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-top: 16px;
    padding-bottom: max(20px, env(safe-area-inset-bottom, 0px));
    border-top-color: var(--site-nav-border);
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .site-nav__link {
    border-radius: 12px;
    padding: 16px 18px;
    font-size: 1.05rem;
    text-align: center;
  }

  .site-nav__link:hover {
    transform: translateX(6px);
  }
}