/* ============================================================
   TripPlanner & Go — Estilos partilhados de navegação (header)
   Usado em todas as páginas
   ============================================================ */

/* Seletor qualificado (header.tpg-header) para ganhar especificidade
   sobre .z-base do <style> inline, que de outra forma sobrescreve
   o position:fixed e o z-index e deixa o dropdown do idioma atrás
   das secções de conteúdo. */
header.tpg-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1.25rem;
  z-index: 50;
  background: rgba(8, 38, 45, 0.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201, 151, 58, 0.25);
}

.tpg-header-logo {
  flex-shrink: 0;
}
.tpg-header-logo img {
  height: 3.5rem;
  width: auto;
  object-fit: contain;
  display: block;
}
@media (min-width: 769px) {
  .tpg-header-logo img { height: 4rem; }
}

/* ============ NAV DESKTOP ============ */
.tpg-nav {
  flex: 1;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
}

.tpg-nav-btn {
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border: 1px solid rgba(201, 151, 58, 0.45);
  border-radius: 9999px;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: all 0.25s ease;
  white-space: nowrap;
  display: inline-block;
}
.tpg-nav-btn:hover {
  border-color: #C9973A;
  color: #C9973A;
  background: rgba(201, 151, 58, 0.12);
  box-shadow: 0 0 18px rgba(201, 151, 58, 0.18);
}
.tpg-nav-btn.active {
  border-color: #C9973A;
  color: #C9973A;
  background: rgba(201, 151, 58, 0.12);
  box-shadow: 0 0 18px rgba(201, 151, 58, 0.18);
}

/* ============ SELETOR DE IDIOMAS ============ */
.tpg-lang-slot {
  flex-shrink: 0;
}

/* ============ BOTÃO MENU MOBILE ============ */
.tpg-nav-mobile-btn {
  display: none;
  background: transparent;
  border: none;
  color: #fff;
  padding: 0.5rem;
  cursor: pointer;
  margin-left: 0.5rem;
}
.tpg-nav-mobile-btn svg {
  width: 1.5rem;
  height: 1.5rem;
  display: block;
}

/* ============ MENU MOBILE DROPDOWN ============ */
.tpg-mobile-nav {
  position: fixed;
  top: 5rem;
  left: 0;
  width: 100%;
  z-index: 40;
  padding: 0.75rem 1rem;
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  background: rgba(8, 38, 45, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201, 151, 58, 0.3);
}
.tpg-mobile-nav.open {
  display: flex;
}
.tpg-mobile-nav .tpg-nav-btn {
  width: 100%;
  text-align: left;
  padding: 0.65rem 1rem;
}

/* ============ RESPONSIVO ============ */
@media (max-width: 768px) {
  .tpg-nav            { display: none !important; }
  .tpg-nav-mobile-btn { display: flex !important; }
  /* Esconder o lang switcher desktop em mobile (vai no menu) */
  .tpg-lang-slot.desktop-only { display: none !important; }
}
@media (min-width: 769px) {
  .tpg-nav-mobile-btn { display: none !important; }
  .tpg-mobile-nav     { display: none !important; }
}

/* ============ COMPATIBILIDADE — classes antigas ============ */
/* Mantém compatibilidade com pages que ainda usem .header-glass / .nav-btn / etc. */
.header-glass {
  background: rgba(8, 38, 45, 0.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201, 151, 58, 0.25);
}
.nav-btn {
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border: 1px solid rgba(201, 151, 58, 0.45);
  border-radius: 9999px;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  transition: all 0.25s ease;
  display: inline-block;
}
.nav-btn:hover,
.nav-btn.active {
  border-color: #C9973A;
  color: #C9973A;
  background: rgba(201, 151, 58, 0.12);
  box-shadow: 0 0 18px rgba(201, 151, 58, 0.18);
}