/* ============================
   Navegação principal - MOBILE FIXED
============================ */


/* ============================
   Menu base
============================ */

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Grupo (Ferramentas, Utilidades, etc.) */
.nav-group {
  position: relative;
}

/* Botão do menu - MELHORADO */
.nav-trigger {
  background: none;
  border: none;
  cursor: pointer;

  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-header);

  padding: 10px 14px;
  border-radius: 10px;
  white-space: nowrap;

  transition: all var(--transition-fast);
  position: relative;

  /* Adiciona seta/indicador */
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Seta indicadora de dropdown */
.nav-trigger::after {
  content: "";
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.6;
  transition: all var(--transition-fast);
}

.nav-trigger:hover {
  background: color-mix(in srgb, var(--primary) 8%, var(--card));
  color: var(--primary);
}

.nav-trigger:hover::after {
  opacity: 1;
  transform: translateY(1px);
}

/* Estado quando dropdown está aberto */
.nav-group:hover .nav-trigger {
  background: color-mix(in srgb, var(--primary) 10%, var(--card));
  color: var(--primary);
}

.nav-group:hover .nav-trigger::after {
  transform: rotate(180deg);
  opacity: 1;
}

html.dark .nav-trigger:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ============================
   Dropdown - MUITO MELHORADO
============================ */

.nav-dropdown {
  /* Inicialmente invisível */
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);

  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  z-index: 100;

  min-width: 220px;

  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px;

  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.05),
    0 10px 25px rgba(0, 0, 0, 0.08);

  transition: all var(--transition-base);
  pointer-events: none;
}

/* Mostrar dropdown no hover - COM ANIMAÇÃO */
.nav-group:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

/* Área invisível para facilitar hover */
.nav-group::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 16px;
  /* Facilita manter o hover ao mover para dropdown */
}

/* Links internos - MELHORADOS */
.nav-dropdown a {
  display: block;

  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);

  padding: 10px 12px;
  border-radius: 8px;
  text-decoration: none;

  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

/* Efeito de hover mais expressivo */
.nav-dropdown a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: var(--primary);
  transform: translateX(-3px);
  transition: transform var(--transition-fast);
}

.nav-dropdown a:hover {
  background: color-mix(in srgb, var(--primary) 8%, var(--card));
  padding-left: 16px;
}

.nav-dropdown a:hover::before {
  transform: translateX(0);
}

/* ============================
   Link ativo - MELHORADO
============================ */

.nav-dropdown a.active {
  background: color-mix(in srgb, var(--primary) 12%, var(--card));
  border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--border));
  font-weight: 600;
  color: var(--primary);
  padding-left: 16px;
}

.nav-dropdown a.active::before {
  transform: translateX(0);
}

.nav-dropdown a.active:hover {
  background: color-mix(in srgb, var(--primary) 15%, var(--card));
}

/* ============================
   Header actions - MELHORADAS
============================ */

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.header-actions button {
  background: none;
  border: none;
  cursor: pointer;

  font-size: 1.1rem;
  color: var(--text-header);

  padding: 10px;
  border-radius: 10px;

  transition: all var(--transition-fast);
  position: relative;
}

.header-actions button:hover {
  background: color-mix(in srgb, var(--primary) 8%, var(--card));
  transform: scale(1.05);
}

.header-actions button:active {
  transform: scale(0.95);
}

/* Botão de idioma específico */
.lang-toggle {
  font-size: 0.85rem !important;
  font-weight: 600;
  padding: 8px 12px !important;
  letter-spacing: -0.01em;
  color: var(--muted) !important;
}

.lang-toggle:hover {
  color: var(--primary) !important;
}

/* Language selector */
.lang-selector select {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lang-selector select:hover {
  background: color-mix(in srgb, var(--primary) 8%, var(--card));
  border-color: var(--primary);
}

.lang-selector select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 15%, transparent);
}

/* Botão de tema com efeito especial */
.dark-toggle {
  position: relative;
}

.dark-toggle::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 12px;
  opacity: 0;
  background: radial-gradient(
    circle at center,
    color-mix(in srgb, var(--primary) 20%, transparent),
    transparent 70%
  );
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.dark-toggle:hover::after {
  opacity: 1;
}

/* ============================
   Dark mode específico
============================ */

html.dark .nav-dropdown {
  background: color-mix(in srgb, var(--card) 98%, white);
  border-color: var(--border);
  box-shadow: 
    0 4px 6px rgba(0, 0, 0, 0.3),
    0 10px 25px rgba(0, 0, 0, 0.4);
}

html.dark .nav-dropdown a:hover {
  background: color-mix(in srgb, var(--primary) 15%, var(--card));
}

html.dark .header-actions button:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ============================
   Animação de entrada escalonada
============================ */

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav-group:hover .nav-dropdown a {
  animation: slideInDown var(--transition-base) ease-out backwards;
}

.nav-group:hover .nav-dropdown a:nth-child(1) { animation-delay: 0.02s; }
.nav-group:hover .nav-dropdown a:nth-child(2) { animation-delay: 0.04s; }
.nav-group:hover .nav-dropdown a:nth-child(3) { animation-delay: 0.06s; }
.nav-group:hover .nav-dropdown a:nth-child(4) { animation-delay: 0.08s; }
.nav-group:hover .nav-dropdown a:nth-child(5) { animation-delay: 0.10s; }
.nav-group:hover .nav-dropdown a:nth-child(6) { animation-delay: 0.12s; }
.nav-group:hover .nav-dropdown a:nth-child(7) { animation-delay: 0.14s; }
.nav-group:hover .nav-dropdown a:nth-child(8) { animation-delay: 0.16s; }

/* ============================
   Mobile - CORRIGIDO! 🔥
============================ */

@media (max-width: 768px) {
  
  /* ============================
     FIX 1: Menu compacto
  ============================ */
  .main-nav {
    gap: 2px; /* Gap ainda menor */
    flex-wrap: nowrap; /* Não quebra linha */
    overflow-x: auto; /* Scroll horizontal se necessário */
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    padding: 0 2px; /* Padding mínimo */
  }

  .main-nav::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
  }

  /* ============================
     FIX 2: Botões menores
  ============================ */
  .nav-trigger {
    padding: 8px 8px;
    font-size: 0.75rem;
    white-space: nowrap;
    min-width: 0; /* Permite compressão */
  }

  .nav-trigger::after {
    display: none; /* Remove seta no mobile */
  }

  /* ============================
     FIX 3: Dropdown em tela cheia
  ============================ */
  .nav-dropdown {
    /* Posição fixa ao invés de absoluta */
    position: fixed;
    left: var(--space-md);
    right: var(--space-md);
    top: calc(var(--header-height) + var(--space-sm));
    
    /* Remove largura mínima */
    min-width: unset;
    max-width: 400px;
    margin: 0 auto;
    
    /* Sempre invisível no mobile (só abre com JS) */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  /* ============================
     FIX 4: Dropdown mobile com CLICK
  ============================ */
  
  /* Desabilita hover no mobile */
  .nav-group:hover .nav-dropdown {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  /* Classe .is-open controlada por JavaScript */
  .nav-group.is-open .nav-dropdown {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
    pointer-events: auto !important;
  }

  /* Botão ativo visualmente */
  .nav-group.is-open .nav-trigger {
    background: color-mix(in srgb, var(--primary) 12%, var(--card));
    color: var(--primary);
  }

  /* ============================
     FIX 5: Overlay para fechar
  ============================ */
  
  /* Cria overlay escuro quando menu aberto */
  .nav-group.is-open::after {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99;
    backdrop-filter: blur(2px);
  }

  /* Dropdown fica acima do overlay */
  .nav-group.is-open .nav-dropdown {
    z-index: 100;
  }

  /* ============================
     FIX 6: Header actions compactas
  ============================ */
  .header-actions {
    gap: 2px;
  }

  .header-actions button {
    padding: 8px;
    font-size: 1rem;
  }

  .lang-selector select {
    font-size: 0.75rem;
    padding: 6px 8px;
  }
}

/* ============================
   Extra small mobile (< 380px)
============================ */
@media (max-width: 380px) {
  .nav-trigger {
    padding: 6px 6px;
    font-size: 0.7rem;
  }

  .header-actions button {
    padding: 6px;
    font-size: 0.9rem;
  }

  .lang-selector select {
    font-size: 0.7rem;
    padding: 4px 6px;
  }
}

/* ============================
   Medium mobile (380px - 480px)
============================ */
@media (min-width: 381px) and (max-width: 480px) {
  .nav-trigger {
    padding: 7px 7px;
    font-size: 0.72rem;
  }
}

/* ============================
   Acessibilidade - Focus states
============================ */

.nav-trigger:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.nav-dropdown a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: -2px;
  border-radius: 8px;
}

.header-actions button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ============================
   Prefers reduced motion
============================ */

@media (prefers-reduced-motion: reduce) {
  .nav-dropdown,
  .nav-trigger,
  .nav-trigger::after,
  .nav-dropdown a,
  .nav-dropdown a::before,
  .header-actions button {
    transition: none;
    animation: none;
  }

  .nav-group:hover .nav-dropdown {
    transform: none;
  }
}