/* ==========================================================================
   Header & Navigation Styles
   ========================================================================== */

/* Top Announcement Bar */
.top-bar {
  background-color: var(--color-primary);
  color: #F8FAFC;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.top-bar-message {
  display: flex;
  align-items: center;
  gap: 8px;
}

.top-bar-highlight {
  color: var(--color-accent);
  font-weight: 600;
}

.top-bar-links {
  display: none;
  gap: 18px;
  color: var(--text-subtle);
}

@media (min-width: 900px) {
  .top-bar-links {
    display: flex;
  }
}

.top-bar-links a:hover {
  color: #FFFFFF;
}

/* Main Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--border-subtle);
  transition: box-shadow var(--transition-fast);
}

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

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 24px;
}

/* Brand / Logo */
.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  line-height: 1.1;
  display: flex;
  align-items: center;
}

.brand-name .amp {
  color: var(--color-accent);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  margin: 0 1px;
}

.brand-tagline {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Header Search (Desktop) */
.header-search {
  flex: 1;
  max-width: 480px;
  position: relative;
  display: none;
}

@media (min-width: 768px) {
  .header-search {
    display: block;
  }
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-input {
  width: 100%;
  height: 44px;
  padding: 0 44px 0 16px;
  background-color: var(--bg-surface);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  color: var(--text-main);
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(30, 41, 59, 0.08);
}

.search-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
}

.search-btn:hover {
  color: var(--color-primary);
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header-action-btn {
  position: relative;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--text-main);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header-action-btn:hover {
  background-color: var(--bg-surface);
  color: var(--color-accent);
}

.header-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border-radius: var(--radius-full);
  background-color: var(--color-accent);
  color: #FFFFFF;
  font-size: 0.6875rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.mobile-menu-btn {
  display: flex;
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Primary Navigation Bar (Desktop) */
.nav-bar {
  display: none;
  border-top: 1px solid var(--border-light);
  background-color: #FFFFFF;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .nav-bar {
    display: block;
  }
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 16px;
  height: 48px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-list::-webkit-scrollbar {
  display: none;
}

@media (min-width: 1200px) {
  .nav-list {
    gap: 24px;
  }
}

@media (min-width: 1280px) {
  .nav-list {
    gap: 32px;
  }
}

.nav-item a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-main);
  height: 48px;
}

.nav-item a:hover,
.nav-item.active a {
  color: var(--color-accent);
}

.nav-item.active a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2.5px;
  background-color: var(--color-accent);
  border-radius: 2px 2px 0 0;
}

.nav-sale-badge {
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 2px 6px;
  background-color: #FEE2E2;
  color: var(--color-sale);
  border-radius: var(--radius-sm);
  line-height: 1;
}

/* Mobile Search Bar Row (Under Header on Mobile) */
.mobile-search-row {
  display: block;
  padding: 10px 16px 14px 16px;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--border-subtle);
}

@media (min-width: 768px) {
  .mobile-search-row {
    display: none;
  }
}

/* Mobile Drawer Menu */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-nav-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-drawer {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  width: 85%;
  max-width: 360px;
  background-color: #FFFFFF;
  z-index: 2001;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform var(--transition-smooth);
}

.mobile-nav-backdrop.open .mobile-nav-drawer {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-nav-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
  background-color: var(--bg-surface);
  color: var(--color-accent);
}

.mobile-nav-footer {
  padding: 20px;
  border-top: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  font-size: 0.8125rem;
  color: var(--text-muted);
}