/* ═══════════════════════════════════════════════════════════
   NAVBAR
   Header fixo com glassmorphism, scrollspy e menu mobile.
   ═══════════════════════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;                         /* reforço — sempre acima de tudo */
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* Padding inteligente: respeita notch/dynamic island do iOS sem afetar Android */
  padding-top:    calc(var(--space-3) + env(safe-area-inset-top, 0));
  padding-bottom: var(--space-3);
  padding-left:   calc(var(--section-padding-x) + env(safe-area-inset-left, 0));
  padding-right:  calc(var(--section-padding-x) + env(safe-area-inset-right, 0));
  /* Tema escuro — combina com o site, elimina "faixa branca" */
  background: rgba(13, 40, 24, 0.0);     /* totalmente transparente no topo */
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
  border-bottom: 1px solid transparent;
  transition: background var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
  /* Garante criação de stacking context isolado — não fica escondido por nada */
  isolation: isolate;
}

/* Após rolar — aparece com fundo escuro translúcido (combina com o site) */
.navbar.is-scrolled {
  background: rgba(13, 40, 24, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: rgba(168, 240, 216, 0.08);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

/* Some quando algum modal está aberto — evita sobreposição visual */
body:has(.product-modal.is-open) .navbar,
body:has(.logo-modal.is-open) .navbar {
  transform: translateY(-110%);
  pointer-events: none;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.navbar__brand:hover {
  opacity: 0.85;
}

.navbar__logo {
  width: 44px;
  height: auto;
  max-height: calc(var(--navbar-height) - var(--space-6));
  flex-shrink: 0;
  object-fit: contain;
}

.navbar__wordmark {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--color-white);            /* branco no tema escuro */
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}

/* Logo SVG: filter pra ficar branco no tema escuro */
.navbar__logo {
  filter: brightness(0) invert(1);      /* deixa SVG totalmente branco */
  opacity: 0.95;
}

.navbar__nav {
  display: flex;
  align-items: center;
}

.navbar__links {
  display: flex;
  gap: var(--space-8);
}

.navbar__link {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);     /* branco translúcido — tema escuro */
  letter-spacing: 0.5px;
  position: relative;
  padding: var(--space-2) 0;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
  transition: color var(--duration-fast) var(--ease-out);
}

/* 6.2 — Sublinhado animado (cresce do centro pros lados) */
.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-mint);
  border-radius: 1px;
  transform: translateX(-50%);
  transition: width var(--duration-normal) var(--ease-out);
}

.navbar__link:hover,
.navbar__link:focus-visible {
  color: var(--color-mint);
}

.navbar__link:hover::after,
.navbar__link:focus-visible::after,
.navbar__link.is-active::after {
  width: 100%;
}

.navbar__link.is-active {
  color: var(--color-mint);
}

/* ── Toggle mobile (hambúrguer) ── */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  /* Touch target generoso + acima do overlay do menu */
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 9999;             /* mesmo da navbar — fica clicável quando menu aberto */
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast);
}

.navbar__toggle:hover,
.navbar__toggle:focus-visible {
  background: rgba(168, 240, 216, 0.08);
}

.navbar__toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-white);       /* branco no tema escuro */
  border-radius: 1px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal) var(--ease-out);
}

.navbar__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle.is-open span:nth-child(2) { opacity: 0; }
.navbar__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─────────────────────────────────────────────────────────
   Sprint 6.3 — Menu mobile: overlay fullscreen + blur + stagger
   ───────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .navbar__toggle { display: flex; }

  .navbar__nav {
    /* Overlay fullscreen — não apenas dropdown */
    position: fixed;
    inset: 0;
    z-index: 9990;            /* abaixo da navbar (9999) pra ela ficar por cima */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(13, 40, 24, 0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 350ms var(--ease-out),
                visibility 350ms;
  }

  .navbar__nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .navbar__links {
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: 0;
    width: 100%;
    max-width: 480px;
  }

  .navbar__links li {
    width: 100%;
    border-bottom: none;
  }

  .navbar__link {
    display: block;
    width: 100%;
    padding: var(--space-4) var(--space-6);
    font-family: var(--font-display);
    font-size: var(--fs-2xl);          /* títulos grandes mobile */
    font-weight: 500;
    text-align: center;
    color: rgba(255, 255, 255, 0.92);
    letter-spacing: 0.5px;
    /* Estado inicial pro stagger */
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 400ms var(--ease-out),
                transform 400ms var(--ease-out),
                color var(--duration-fast),
                background var(--duration-fast);
  }

  .navbar__link::after { display: none; }

  .navbar__link:hover,
  .navbar__link:focus-visible,
  .navbar__link.is-active {
    color: var(--color-mint);
    background: rgba(168, 240, 216, 0.06);
    border-radius: var(--radius-md);
  }

  /* Stagger automático nos links — 60ms entre cada */
  .navbar__nav.is-open .navbar__link {
    opacity: 1;
    transform: translateY(0);
  }
  .navbar__nav.is-open .navbar__links li:nth-child(1) .navbar__link { transition-delay: 80ms; }
  .navbar__nav.is-open .navbar__links li:nth-child(2) .navbar__link { transition-delay: 140ms; }
  .navbar__nav.is-open .navbar__links li:nth-child(3) .navbar__link { transition-delay: 200ms; }
  .navbar__nav.is-open .navbar__links li:nth-child(4) .navbar__link { transition-delay: 260ms; }
  .navbar__nav.is-open .navbar__links li:nth-child(5) .navbar__link { transition-delay: 320ms; }
  .navbar__nav.is-open .navbar__links li:nth-child(6) .navbar__link { transition-delay: 380ms; }

  /* Body scroll lock quando menu mobile aberto */
  body.is-menu-open {
    overflow: hidden;
  }
}

@media (max-width: 480px) {
  /* Mantém logo + wordmark visíveis (mesma identidade do desktop) */
  .navbar__wordmark {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 3px;
  }
  .navbar__logo { width: 36px; }
  .navbar__brand { gap: var(--space-2); }
  .navbar { padding-inline: var(--space-4); }
}

@media (max-width: 360px) {
  /* Telas muito estreitas — comprime mais o wordmark mas mantém visível */
  .navbar__wordmark {
    font-size: 10px;
    letter-spacing: 2px;
  }
  .navbar__logo { width: 32px; }
}