/* =========================================
   NAVBAR.CSS — Barra de navegação fixa no topo
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600&display=swap');

#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 15, 20, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, box-shadow 0.3s;
}

/* Sombra ao rolar */
#navbar.scrolled {
  background: rgba(13, 15, 20, 0.97);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2.5rem;
  height: 60px;
  gap: 2rem;
}

/* ── Brand ── */
.navbar-brand {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--cyan);
  line-height: 1;
}

.brand-role {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1;
}

/* Cursor piscante */
.cursor {
  display: inline-block;
  width: 7px;
  height: 13px;
  background: var(--cyan);
  margin-left: 2px;
  vertical-align: middle;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ── Links de navegação ── */
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  border-radius: 4px;
  border: 1px solid transparent;
  transition: all 0.2s;
  white-space: nowrap;
}

.nav-link .prompt {
  color: var(--cyan);
  opacity: 0.5;
  font-size: 0.72rem;
}

.nav-link:hover {
  color: var(--cyan);
  border-color: var(--border);
  background: var(--cyan-glow);
}

.nav-link.active {
  color: var(--cyan);
  border-color: var(--border2);
  background: var(--cyan-glow);
}

/* ── Botão hamburguer (mobile) ── */
.navbar-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.2s;
}

.navbar-toggle:hover {
  border-color: var(--cyan);
}

.navbar-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text-dim);
  border-radius: 2px;
  transition: all 0.25s;
}

/* Animação X ao abrir */
.navbar-toggle.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
  background: var(--cyan);
}
.navbar-toggle.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.navbar-toggle.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
  background: var(--cyan);
}

/* ── Responsivo ── */
@media (max-width: 768px) {
  .navbar-toggle {
    display: flex;
  }

  .navbar-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(13, 15, 20, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1rem;
    backdrop-filter: blur(12px);
  }

  .navbar-nav.open {
    display: flex;
  }

  .nav-link {
    padding: 10px 14px;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .navbar-inner {
    padding: 0 1.25rem;
  }

  .brand-role {
    display: none;
  }
}