/* =============================================
   LANG POPUP — escolha de idioma (1ª visita)
   mesma linguagem visual do guide-card (liquid glass)
   ============================================= */
.lang-popup {
  position: fixed;
  inset: 0;
  z-index: 20000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;

  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;

  background:
    radial-gradient(ellipse 55% 45% at 50% 45%, rgba(40, 170, 255, 0.32) 0%, transparent 70%),
    rgba(6, 6, 8, 0.78);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
}

.lang-popup.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.lang-popup__card {
  position: relative;
  width: 100%;
  max-width: 420px;
  padding: 40px 32px;
  border-radius: 28px;
  text-align: center;

  background: linear-gradient(135deg, rgba(20, 20, 20, 0.9) 0%, rgba(10, 12, 16, 0.88) 100%);
  border: 1px solid rgba(80, 200, 255, 0.6);
  box-shadow:
    0 0 0 1px rgba(80, 200, 255, 0.25),
    0 0 24px rgba(40, 170, 255, 0.65),
    0 0 70px rgba(40, 170, 255, 0.55),
    0 0 150px rgba(30, 140, 255, 0.4),
    0 32px 80px rgba(0, 0, 0, 0.6),
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 0 40px rgba(40, 170, 255, 0.08);

  transform: translateY(16px) scale(0.98);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  animation: lang-neon-pulse 2.6s ease-in-out infinite;
}

.lang-popup.is-visible .lang-popup__card {
  transform: translateY(0) scale(1);
}

@keyframes lang-neon-pulse {
  0%, 100% {
    box-shadow:
      0 0 0 1px rgba(80, 200, 255, 0.25),
      0 0 24px rgba(40, 170, 255, 0.65),
      0 0 70px rgba(40, 170, 255, 0.55),
      0 0 150px rgba(30, 140, 255, 0.4),
      0 32px 80px rgba(0, 0, 0, 0.6),
      inset 0 1px 0 rgba(255, 255, 255, 0.18),
      inset 0 0 40px rgba(40, 170, 255, 0.08);
  }
  50% {
    box-shadow:
      0 0 0 1px rgba(80, 200, 255, 0.4),
      0 0 36px rgba(40, 170, 255, 0.9),
      0 0 100px rgba(40, 170, 255, 0.7),
      0 0 200px rgba(30, 140, 255, 0.55),
      0 32px 80px rgba(0, 0, 0, 0.6),
      inset 0 1px 0 rgba(255, 255, 255, 0.24),
      inset 0 0 50px rgba(40, 170, 255, 0.14);
  }
}

.lang-popup__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 18%;
  right: 18%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(40, 170, 255, 1) 40%, rgba(80, 200, 255, 1) 60%, transparent);
  box-shadow: 0 0 20px rgba(40, 170, 255, 1), 0 0 40px rgba(40, 170, 255, 0.6);
  border-radius: 999px;
}

.lang-popup__logo {
  width: 44px;
  height: 44px;
  margin: 0 auto 20px;
  display: block;
  filter: drop-shadow(0 0 14px rgba(46, 163, 255, 0.65));
}

.lang-popup__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.01em;
  margin-bottom: 8px;
}

.lang-popup__sub {
  font-family: var(--font-body);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 28px;
}

.lang-popup__options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lang-popup__btn {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.lang-popup__btn:hover {
  background: rgba(46, 163, 255, 0.12);
  border-color: rgba(56, 189, 255, 0.5);
  box-shadow: 0 0 20px rgba(46, 163, 255, 0.25);
  transform: translateY(-2px);
}

.lang-popup__flag {
  font-size: 20px;
  line-height: 1;
  flex-shrink: 0;
}

.lang-popup__btn-sub {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 2px;
}

@media (max-width: 480px) {
  .lang-popup__card { padding: 32px 22px; border-radius: 22px; }
  .lang-popup__title { font-size: 18px; }
}

/* =============================================
   LANG SWITCH — botão único que abre um menu
   flutuante pra cima do ícone, então nunca
   sobrepõe o dock nem qualquer outro elemento
   ============================================= */
.lang-switch {
  position: relative;
  flex-shrink: 0;
}

.lang-switch__trigger {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.lang-switch__trigger:hover,
.lang-switch.is-open .lang-switch__trigger {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.18);
}

.lang-switch__trigger svg { width: 15px; height: 15px; flex-shrink: 0; }

.lang-switch__current {
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lang-switch__menu {
  position: absolute;
  bottom: calc(100% + 10px);
  right: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 118px;
  padding: 6px;
  border-radius: 14px;
  background: rgba(10, 10, 12, 0.92);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  transform-origin: bottom right;
  transform: translateY(6px) scale(0.96);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.lang-switch.is-open .lang-switch__menu {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.lang-switch__btn {
  appearance: none;
  border: none;
  background: transparent;
  cursor: pointer;
  text-align: left;
  padding: 8px 12px;
  border-radius: 9px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  transition: background 0.2s, color 0.2s;
}

.lang-switch__btn:hover { background: rgba(255, 255, 255, 0.06); color: rgba(255, 255, 255, 0.9); }

.lang-switch__btn.is-active {
  background: var(--color-teal);
  color: #05100d;
}

.lang-switch__btn.is-active:hover { background: var(--color-teal); color: #05100d; }