/* ============================================================
   NAVBAR.CSS
   Barra de navegación fija con efecto de transparencia a sólido
   ============================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--navbar-height);
  z-index: 1000;
  display: flex;
  align-items: center;
  background-color: transparent;
  transition: background-color var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-medium);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled,
.navbar.solid {
  background-color: rgba(245, 240, 232, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(14, 13, 15, 0.06);
  box-shadow: var(--shadow-soft);
}

.navbar-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---- Logo ---- */
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.1em;
  color: var(--color-ivory);
  transition: color var(--transition-medium);
}

.navbar.scrolled .nav-logo,
.navbar.solid .nav-logo {
  color: var(--color-noir);
}

.nav-logo span {
  color: var(--color-gold);
}

/* ---- Links de navegación ---- */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-links a {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ivory);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}

.navbar.scrolled .nav-links a,
.navbar.solid .nav-links a {
  color: var(--color-noir);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--color-gold);
}

/* ---- Acciones (carrito, menú móvil) ---- */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-cart {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: var(--color-ivory);
  transition: color var(--transition-medium);
}

.navbar.scrolled .nav-cart,
.navbar.solid .nav-cart {
  color: var(--color-noir);
}

.nav-cart svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

.cart-count {
  position: absolute;
  top: 0;
  right: 0;
  min-width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: var(--color-gold);
  color: var(--color-noir);
  font-size: 0.65rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  transition: transform var(--transition-fast);
}

.cart-count.bump {
  animation: cart-bump 0.4s ease;
}

@keyframes cart-bump {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.35); }
}

/* ---- Botón menú hamburguesa (móvil) ---- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background-color: var(--color-ivory);
  transition: all var(--transition-fast);
}

.navbar.scrolled .nav-toggle span,
.navbar.solid .nav-toggle span {
  background-color: var(--color-noir);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============================================================
   RESPONSIVE NAVBAR
   ============================================================ */
@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background-color: var(--color-ivory);
    box-shadow: var(--shadow-soft);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium);
  }

  .nav-links.open {
    max-height: 70vh;
    overflow-y: auto;
  }

  .nav-links a {
    color: var(--color-noir) !important;
    width: 100%;
    padding: 1rem var(--space-md);
    border-bottom: 1px solid rgba(14,13,15,0.06);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-cart {
    color: var(--color-ivory) !important;
  }

  .navbar.scrolled .nav-cart,
  .navbar.solid .nav-cart {
    color: var(--color-noir) !important;
  }
}