/* ============================================================
   LUMMA CONNECT — Componentes de navegación
   Paleta oficial: Morado predominante + Teal acento
   ============================================================ */

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-sticky);
  transition: background-color var(--transition-normal),
              box-shadow var(--transition-normal),
              backdrop-filter var(--transition-normal);
}

/* Siempre visible: fondo frosted-glass desde el inicio */
.navbar--transparent {
  background-color: rgba(25,30,53,0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.navbar--scrolled {
  background-color: rgba(255,255,255,0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border-color), var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: var(--space-6);
}

/* ---- Logo ---- */
.navbar__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}
.navbar__logo:hover { opacity: 0.82; }

/* ─────────────────────────────────────────────
   PNG logo — dual image, CSS visibility swap
   · .navbar__logo-img--light  → logo-light.png (white bg, teal enso, dark text)
     shown on: scrolled / interior pages (white navbar)
   · .navbar__logo-img--dark   → logo-dark.png (transparent bg, white elements)
     shown on: hero transparent / dark navbar
   No JS required — pure CSS class toggle
   ───────────────────────────────────────────── */

.navbar__logo-img--light,
.navbar__logo-img--dark {
  height: 44px;      /* desktop: compact navbar height */
  width: auto;
  max-width: 140px;  /* prevent stacked PNG from stretching wide */
  display: block;
  position: absolute;
  top: 0; left: 0;
  transition: opacity var(--transition-fast);
  object-fit: contain;
}

/* Logo wrapper — sized to match the img */
.navbar__logo-imgs {
  position: relative;
  height: 44px;
  width: 140px;
}

/* Default (scrolled / white): show light, hide dark */
.navbar__logo-img--light { opacity: 1; }
.navbar__logo-img--dark  { opacity: 0; }

/* Hero / dark state: show dark, hide light */
.navbar--transparent .navbar__logo-img--light,
.navbar--dark        .navbar__logo-img--light { opacity: 0; }
.navbar--transparent .navbar__logo-img--dark,
.navbar--dark        .navbar__logo-img--dark  { opacity: 1; }

/* Footer logo img */
.footer__logo-img {
  height: 52px;
  width: auto;
  max-width: 160px;
  display: block;
  object-fit: contain;
}

/* ---- Nav links (desktop) ---- */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
  justify-content: center;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-brand-purple);
  background-color: var(--color-brand-purple-pale);
  text-decoration: none;
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-brand-purple);
  outline-offset: 2px;
}

.nav-link--active {
  color: var(--color-brand-purple);
  background-color: var(--color-brand-purple-pale);
}

/* ---- Navbar actions ---- */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ---- Navbar sobre fondo oscuro (hero) ---- */
.navbar--dark .nav-link,
.navbar--transparent .nav-link {
  color: rgba(255,255,255,0.82);
}

.navbar--dark .nav-link:hover,
.navbar--transparent .nav-link:hover {
  color: var(--color-white);
  background-color: rgba(255,255,255,0.12);
}

.navbar--transparent .navbar__toggle,
.navbar--dark .navbar__toggle {
  color: rgba(255,255,255,0.9);
}

.navbar--transparent .navbar__toggle:hover,
.navbar--dark .navbar__toggle:hover {
  background-color: rgba(255,255,255,0.12);
}

/* ---- Mobile menu toggle ---- */
.navbar__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
  color: var(--text-primary);
}

.navbar__toggle:hover { background-color: var(--color-gray-100); }

.navbar__toggle:focus-visible {
  outline: 2px solid var(--color-brand-purple);
  outline-offset: 2px;
}

.navbar__toggle-icon {
  width: 22px; height: 22px;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.navbar__toggle-icon span {
  display: block;
  width: 100%; height: 2px;
  background-color: currentColor;
  border-radius: 2px;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
  transform-origin: center;
}

.navbar__toggle[aria-expanded="true"] .navbar__toggle-icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar__toggle[aria-expanded="true"] .navbar__toggle-icon span:nth-child(2) {
  opacity: 0; transform: scaleX(0);
}
.navbar__toggle[aria-expanded="true"] .navbar__toggle-icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---- Menú móvil ---- */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0; bottom: 0;
  background: var(--color-white);
  z-index: calc(var(--z-sticky) - 1);
  overflow-y: auto;
  padding: var(--space-6) var(--container-padding);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.mobile-menu.is-open {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.mobile-nav-link:hover {
  background-color: var(--color-brand-purple-pale);
  color: var(--color-brand-purple);
  text-decoration: none;
}

.mobile-menu__cta {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .navbar__nav { display: none; }
  .navbar__toggle { display: flex; }
  .navbar__actions .btn { display: none; }
  .navbar--dark .navbar__toggle,
  .navbar--transparent .navbar__toggle { color: var(--color-white); }
  .navbar--scrolled .navbar__toggle { color: var(--text-primary); }

  /* Tablet logo */
  .navbar__logo-img--light,
  .navbar__logo-img--dark {
    height: 38px;
    max-width: 120px;
  }
  .navbar__logo-imgs {
    height: 38px;
    width: 120px;
  }
}

@media (max-width: 480px) {
  .navbar__inner { height: 60px; }
  .mobile-menu  { top: 60px; }

  /* Mobile logo — compact, won't overflow */
  .navbar__logo-img--light,
  .navbar__logo-img--dark {
    height: 32px;
    max-width: 105px;
  }
  .navbar__logo-imgs {
    height: 32px;
    width: 105px;
  }

  /* Footer logo smaller on mobile */
  .footer__logo-img {
    height: 42px;
    max-width: 130px;
  }
}