/* ============================================================
   HEADER.CSS — Cabecera del blog
   ============================================================ */

/* ── Top bar ─────────────────────────────────────────────────── */

.top-bar {
  background: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2) 0;
}

.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar__social {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.top-bar__social a {
  display: flex;
  align-items: center;
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
}

.top-bar__social a:hover {
  color: var(--color-primary);
}

.top-bar__social svg {
  width: 18px;
  height: 18px;
}

.top-bar__cta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.top-bar__store-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  font-family: var(--font-display);
  color: var(--color-primary);
  transition: color var(--duration-fast) var(--ease-out);
}

.top-bar__store-link:hover {
  color: var(--color-accent);
}

.top-bar__store-link svg {
  width: 16px;
  height: 16px;
}

/* ── Header principal ────────────────────────────────────────── */

.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.site-header__logo img {
  height: 64px;
  width: auto;
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
}

.site-header__logo-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-primary-dark);
  line-height: 1;
  letter-spacing: -0.01em;
}

.site-header__logo-subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.site-header__blog-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  font-family: var(--font-display);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--color-accent);
  color: white;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  margin-top: var(--space-1);
}

/* ── Navegación ──────────────────────────────────────────────── */

.main-nav {
  background: var(--color-primary);
}

.main-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.main-nav__list {
  display: flex;
  align-items: center;
}

.main-nav__item {
  position: relative;
}

.main-nav__link {
  display: block;
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-inverted);
  letter-spacing: 0.03em;
  transition: background var(--duration-fast) var(--ease-out);
}

.main-nav__link:hover,
.main-nav__link:focus-visible {
  background: var(--color-primary-dark);
  outline: none;
}

.main-nav__link--active {
  background: var(--color-primary-dark);
}

.main-nav__store-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--color-accent);
  color: var(--color-text-inverted);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.03em;
  white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-out);
}

.main-nav__store-btn:hover {
  background: var(--color-accent-dark);
}

.main-nav__store-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ── Menú móvil ──────────────────────────────────────────────── */

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-3);
  cursor: pointer;
  color: white;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-fast) var(--ease-out);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Focus visible global ──────────────────────────────────────── */

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ── Responsive ──────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav__list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    padding-bottom: var(--space-2);
  }

  .main-nav__list.is-open {
    display: flex;
  }

  .main-nav__inner {
    flex-wrap: wrap;
    align-items: center;
  }

  .main-nav__store-btn {
    display: none;
  }
}

@media (max-width: 768px) {
  .site-header__logo img {
    height: 48px;
  }

  .site-header__logo-title {
    font-size: var(--text-lg);
  }

  .top-bar__store-link span {
    display: none;
  }
}