/* ─────────────────────────────────────────────
   nav.css — Navbar
───────────────────────────────────────────── */

#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  opacity: 0;
  transform: translateY(-12px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}
#navbar.show {
  opacity: 1;
  transform: translateY(0);
}
#navbar.scrolled {
  border-bottom-color: var(--border-subtle);
  background: rgba(10, 10, 15, 0.95);
}

/* ── Logo ── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  z-index: 1;
  flex-shrink: 0;
}

/* ── Desktop links ── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  text-decoration: none;
  text-transform: uppercase;
  transition: color var(--duration-normal);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--gradient-brand);
  transition: width var(--duration-normal) var(--ease-out);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  background: transparent !important;
  border: 1px solid rgba(255, 107, 53, .35) !important;
  color: var(--color-orange-light) !important;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  background: rgba(255, 107, 53, .1) !important;
  border-color: var(--color-orange) !important;
  color: var(--color-orange) !important;
}

/* ── Hamburger ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 6px;
  cursor: pointer;
  background: none;
  border: none;
  flex-shrink: 0;
}
.nav-hamburger span {
  display: block;
  height: 1.5px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ══════════════════════════════════════════
   MOBILE — ≤ 768px
   .nav-links esconde, dropdown abre com .open
══════════════════════════════════════════ */
@media (max-width: 768px) {
  #navbar {
    padding: 14px 20px;
    min-height: 64px;
  }

  /* Hamburguer aparece */
  .nav-hamburger { display: flex; }

  /* Desktop links: viram dropdown fechado por padrão */
  .nav-links {
    /* Reset: sai do flow do navbar */
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(14, 14, 22, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-default);
    padding: 8px 0 16px;
    /* Fechado: escondido acima */
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height .35s var(--ease-out),
                opacity .25s var(--ease-out),
                padding .3s var(--ease-out);
    padding-top: 0;
    padding-bottom: 0;
  }
  /* Aberto */
  .nav-links.open {
    max-height: 400px;
    opacity: 1;
    pointer-events: all;
    padding: 8px 0 16px;
  }

  /* Cada link: área de toque confortável */
  .nav-links a {
    padding: 14px 24px;
    font-size: 13px;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav-links a:last-child { border-bottom: none; }
  .nav-links a::after { display: none; }

  /* CTA especial */
  .nav-cta {
    margin: 8px 20px 0 !important;
    text-align: center !important;
    border-radius: var(--radius-md) !important;
    padding: 12px 20px !important;
    font-size: 12px !important;
  }
}

/* ── Phones muito pequenos ── */
@media (max-width: 400px) {
  #navbar { padding: 12px 16px; }
  .nl-tagline { display: none; }
}