/* ════════════════════════════════════════════════════════════════════════
   HEADER — Gaia Bolivia
   Aplica en index.html, tienda.html, producto.html, nosotros, contacto
   ════════════════════════════════════════════════════════════════════════ */

/* ── ANNOUNCEMENT BAR ──────────────────────────────────────────────────── */
.announcement-bar {
  background: var(--color-black);
  color: #fff;
  text-align: center;
  padding: 10px 20px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--font-sans);
}
.announcement-bar a {
  color: var(--color-primary-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── SITE HEADER ───────────────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-fast);
}
.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 40px;
}

/* ── LOGO ──────────────────────────────────────────────────────────────── */
.site-logo {
  flex-shrink: 0;
  text-decoration: none;
}
.logo-text {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--color-black);
  display: block;
  line-height: 1;
}
.site-logo__img {
  height: 44px;
  width: auto;
  display: block;
  object-fit: contain;
}

/* ── NAV PRINCIPAL ─────────────────────────────────────────────────────── */
.main-nav {
  flex: 1;
  display: flex;
  align-items: center;
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav-item {
  position: relative;
  list-style: none;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 16px;
  height: var(--header-height);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  font-family: var(--font-sans);
}
.nav-link:hover,
.nav-item.has-dropdown:hover .nav-link {
  color: var(--color-primary);
}
.nav-link .chevron {
  transition: transform var(--transition-fast);
  font-size: 9px;
}
.nav-item.has-dropdown:hover .chevron {
  transform: rotate(180deg);
}

/* ── DROPDOWN ──────────────────────────────────────────────────────────── */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 1px);
  left: 0;
  min-width: 220px;
  background: #fff;
  border-top: 2px solid var(--color-primary);
  box-shadow: 0 20px 60px rgba(0,0,0,0.1);
  list-style: none;
  padding: 16px 0;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: 1000;
}
.nav-item.has-dropdown:hover .dropdown-menu,
.nav-item.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-menu li {
  list-style: none;
}
.dropdown-menu li a {
  display: block;
  padding: 10px 24px;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text);
  text-decoration: none;
  font-family: var(--font-sans);
  transition: all var(--transition-fast);
}
.dropdown-menu li:first-child a {
  color: var(--color-primary);
  font-weight: 500;
}
.dropdown-menu li a:hover {
  color: var(--color-primary);
  padding-left: 32px;
}

/* ── HEADER ACTIONS ────────────────────────────────────────────────────── */
.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text);
  transition: all var(--transition-fast);
  position: relative;
  flex-shrink: 0;
}
.btn-icon:hover {
  background: var(--color-bg-soft);
  color: var(--color-primary);
}
.cart-count {
  position: absolute;
  top: 4px;
  right: 4px;
  background: var(--color-primary);
  color: #fff;
  font-size: 9px;
  font-weight: 600;
  min-width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding: 0 2px;
  font-family: var(--font-sans);
}
.cart-count[data-count="0"] { display: none; }

/* ── SEARCH BAR ────────────────────────────────────────────────────────── */
.search-bar {
  display: none;
  align-items: center;
  padding: 12px 24px;
  border-top: 1px solid var(--color-border);
  gap: 12px;
  background: #fff;
}
.search-bar.open { display: flex; }
.search-bar input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-sans);
  font-size: 15px;
  background: transparent;
  color: var(--color-text);
}
.search-bar input::placeholder {
  color: var(--color-text-muted);
}

/* ── HAMBURGER MOBILE ──────────────────────────────────────────────────── */
.btn-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.btn-menu span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-black);
  transition: all 0.3s;
  border-radius: 2px;
}
.btn-menu.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.btn-menu.active span:nth-child(2) { opacity: 0; }
.btn-menu.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── MOBILE NAV ────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .main-nav { display: none; }
  .btn-menu { display: flex; }

  .main-nav.mobile-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    top: var(--header-height);
    background: #fff;
    padding: 24px;
    z-index: 800;
    overflow-y: auto;
  }
  .nav-item { width: 100%; border-bottom: 1px solid var(--color-border); }
  .nav-link { height: 52px; padding: 0 8px; font-size: 14px; }
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-top: none;
    padding: 0 0 12px 16px;
  }
}