/* ==========================================================================
   Header — Top bar + Main header + Navigation
   ========================================================================== */

/* ── Top Bar ── */
.topbar {
  background: var(--bg-topbar);
  color: var(--color-white);
  font-size: var(--text-sm);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  position: relative;
  z-index: var(--z-sticky);
}

.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar__slogan {
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.5px;
  font-size: var(--text-xs);
}

.topbar__search {
  flex: 0 1 420px;
  position: relative;
}

.topbar__search-input {
  width: 100%;
  padding: 8px 16px 8px 40px;
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  background: var(--color-white);
  color: var(--color-secondary);
  outline: none;
}

.topbar__search-input:focus {
  box-shadow: 0 0 0 3px rgba(255,255,255,0.3);
}

.topbar__search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-gray-400);
}

.topbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-xs);
}

.topbar__links a {
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  opacity: 0.9;
}

.topbar__links a:hover {
  opacity: 1;
  color: var(--color-white);
}

/* ── Main Header ── */
.site-header {
  background: var(--color-white);
  height: var(--header-height);
  display: flex;
  align-items: center;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.site-header--scrolled {
  box-shadow: var(--shadow-md);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-logo img { height: 40px; width: auto; }

.site-logo__text {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.site-logo__tagline {
  display: block;
  font-family: var(--font-primary);
  font-size: 9px;
  letter-spacing: 1.5px;
  color: var(--color-gray-400);
  text-transform: uppercase;
  margin-top: -2px;
}

/* ── Main Nav ── */
.main-nav { display: flex; align-items: center; margin-left: var(--space-10); }
.main-nav__list { display: flex; align-items: center; }
.main-nav__item { position: relative; }

.main-nav__link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-secondary);
  white-space: nowrap;
  position: relative;
}

.main-nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-4);
  right: var(--space-4);
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.main-nav__link:hover,
.main-nav__link--active { color: var(--color-primary); }
.main-nav__link:hover::after,
.main-nav__link--active::after { transform: scaleX(1); }

.main-nav__arrow { width: 12px; height: 12px; transition: transform var(--transition-fast); }
.main-nav__item:hover .main-nav__arrow { transform: rotate(180deg); }

/* ── Dropdown ── */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-white);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
  padding: var(--space-2) 0;
}

.main-nav__item:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }

.dropdown-menu__link {
  display: block;
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-secondary);
}

.dropdown-menu__link:hover {
  background: var(--color-gray-50);
  color: var(--color-primary);
}

/* ── Cart ── */
.header-actions { display: flex; align-items: center; gap: var(--space-4); flex-shrink: 0; }

.header-cart {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  cursor: pointer;
}

.header-cart:hover { color: var(--color-primary); }
.header-cart__icon { width: 24px; height: 24px; }

.header-cart__count {
  position: absolute;
  top: 2px; right: 0;
  min-width: 18px; height: 18px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── Mobile ── */
.mobile-toggle { display: none; flex-direction: column; gap: 5px; width: 28px; cursor: pointer; padding: var(--space-2); }
.mobile-toggle__bar { width: 100%; height: 2px; background: var(--color-secondary); border-radius: 2px; transition: all var(--transition-fast); }

@media (max-width: 1024px) {
  .main-nav {
    position: fixed;
    top: calc(var(--topbar-height) + var(--header-height));
    left: 0; right: 0; bottom: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-4);
    margin-left: 0;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: var(--z-fixed);
  }
  .main-nav--open { transform: translateX(0); }
  .main-nav__list { flex-direction: column; align-items: stretch; }
  .main-nav__link { padding: var(--space-4); font-size: var(--text-base); border-bottom: 1px solid var(--color-gray-100); }
  .main-nav__link::after { display: none; }
  .mobile-toggle { display: flex; }
  .topbar__search, .topbar__links { display: none; }
}