/**
 * ============================================================================
 * GORILLA NUTRITION SINALOA - Nav CSS
 * ============================================================================
 *
 * Estilos de la barra de navegación fija.
 * El nav es transparente por defecto y se vuelve sólido al hacer scroll
 * (la clase .scrolled se agrega vía JavaScript en nav-scroll.js).
 *
 * Incluye: logo, links de navegación, botón CTA, menú hamburguesa.
 *
 * @package Gorilla_Nutrition
 * @since   1.0.0
 */

/* ─── Nav Container ───────────────────────────────────────────────────── */

.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--container-padding);

  /* Estado inicial: transparente */
  background: transparent;
  backdrop-filter: none;
  border-bottom: 1px solid transparent;
  box-shadow: none;

  /* Transición suave al cambiar de estado */
  transition:
    background 0.5s ease,
    box-shadow 0.5s ease,
    border-color 0.5s ease,
    backdrop-filter 0.5s ease;
}

/** Estado al hacer scroll (clase añadida por JS) */
.main-nav.scrolled {
  background: rgba(7, 7, 7, 0.97);
  backdrop-filter: blur(22px) saturate(1.8);
  border-bottom-color: var(--color-border-gold);
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.7);
}

/**
 * Compensación para la barra de administración de WordPress.
 * WordPress agrega la clase 'admin-bar' al <html> cuando el admin bar está activo.
 * El admin bar mide 32px en desktop y 46px en móvil (≤782px).
 */
.admin-bar .main-nav {
  top: 32px;
}

@media screen and (max-width: 782px) {
  .admin-bar .main-nav {
    top: 46px;
  }
}

/* ─── Logo ────────────────────────────────────────────────────────────── */

.nav-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo__img {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 1px solid rgba(201, 169, 79, 0.2);
  flex-shrink: 0;
}

.nav-logo__brand {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 5px;
  line-height: 1;
  /* text-gold-gradient se aplica como clase */
}

.nav-logo__sub {
  font-size: 7.5px;
  letter-spacing: 3.5px;
  color: var(--color-text-darker);
  text-transform: uppercase;
  margin-top: 1px;
}

/* ─── Links de Navegación ─────────────────────────────────────────────── */

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #888;
  text-decoration: none;
  font-weight: 700;
  position: relative;
  transition:
    color 0.25s ease,
    text-shadow 0.25s ease,
    letter-spacing 0.25s ease;
}

/** Línea decorativa debajo del link (gradiente gold→red) */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-red));
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--color-gold) !important;
  text-shadow:
    0 0 22px rgba(201, 169, 79, 0.7),
    0 0 40px rgba(201, 169, 79, 0.3);
  letter-spacing: 3px;
}

.nav-link:hover::after {
  width: 100%;
}

/* ─── Botón CTA del Nav ───────────────────────────────────────────────── */

.nav-cta {
  padding: 11px 28px;
  background: var(--color-red);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: var(--transition-base);
}

.nav-cta:hover {
  background: var(--color-gold) !important;
  color: var(--color-bg-primary) !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201, 169, 79, 0.45) !important;
}

/* ─── Botón Hamburguesa (Móvil) ───────────────────────────────────────── */

.nav-hamburger {
  display: none; /* Visible solo en responsive.css */
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: calc(var(--z-nav) + 1);
}

.nav-hamburger__line {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-base);
  border-radius: 1px;
}

/** Estado abierto: líneas forman una X */
.nav-hamburger.active .nav-hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.active .nav-hamburger__line:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active .nav-hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
