/**
 * HEAVY MACHINERY - Global Industrial Marketplace - Navigation & Header Styles
 * Firmly attached to the top of the viewport with zero floating gap
 */

/* Top Utility Bar */
.top-utility-bar {
  background-color: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  padding: 0.35rem 0;
  position: relative;
  z-index: calc(var(--z-sticky) - 1);
}

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

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

.utility-ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

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

.utility-links a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.utility-links a:hover {
  color: var(--color-primary-700);
}

/* Main Header: Permanently pinned to top of viewport with zero gap */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  margin: 0;
  z-index: var(--z-sticky);
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--color-border-subtle);
  box-shadow: 0 1px 3px rgba(18, 25, 34, 0.04);
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.site-header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 18px rgba(18, 25, 34, 0.08);
  border-bottom-color: var(--color-border-medium);
}

.site-header .container-marketplace {
  max-width: 1480px;
  width: 100%;
  box-sizing: border-box;
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 106px;
  gap: clamp(0.5rem, 1.2vw, 1.25rem);
  width: 100%;
  box-sizing: border-box;
}

/* Brand Logo */
.brand-logo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  flex-shrink: 0;
}

.navbar-container .brand-logo-link {
  margin-right: clamp(0.75rem, 1.5vw, 1.75rem);
  flex-shrink: 0;
}

.brand-logo-picture {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.brand-icon-box {
  width: 38px;
  height: 38px;
  background-color: var(--color-primary-700);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(16, 78, 70, 0.25);
  transition: transform var(--transition-fast);
}

.brand-logo-link:hover .brand-icon-box {
  transform: scale(1.04);
}

.brand-logo-img {
  height: 82px;
  width: auto;
  max-width: 270px;
  aspect-ratio: 1024 / 341;
  display: block;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.brand-logo-link:hover .brand-logo-img {
  transform: scale(1.02);
}

.brand-text-group {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-family-display);
  font-size: 1.15rem;
  font-weight: var(--font-weight-extrabold);
  letter-spacing: -0.02em;
  color: var(--color-text-heading);
  line-height: 1.1;
}

.brand-tagline {
  font-size: 0.625rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary-600);
}

/* Main Navigation Menu */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8875rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-main);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: transparent;
}

.nav-link:hover {
  color: var(--color-primary-700);
  background-color: rgba(16, 78, 70, 0.04);
}

.nav-link.active {
  color: var(--color-primary-800);
  background-color: rgba(16, 78, 70, 0.08);
  font-weight: var(--font-weight-bold);
}


.nav-link svg.arrow-icon {
  width: 10px;
  height: 10px;
  stroke: currentColor;
  stroke-width: 2.2;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg.arrow-icon {
  transform: rotate(180deg);
}

/* Nav Dropdown Menus */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 240px;
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-normal);
  z-index: var(--z-dropdown);
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.85rem;
  font-size: var(--font-size-sm);
  color: var(--color-text-main);
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  background-color: var(--color-primary-50);
  color: var(--color-primary-800);
  padding-left: 1rem;
}

.dropdown-link .dropdown-count {
  font-size: var(--font-size-xs);
  color: var(--color-text-light);
}

/* Header Navbar Search Pill */
.navbar-search-form {
  position: relative;
  width: clamp(160px, 14vw, 220px);
  min-width: 130px;
  flex-shrink: 1;
}

.navbar-search-input {
  width: 100%;
  height: 38px;
  padding: 0.4rem 2.4rem 0.4rem 0.95rem;
  font-size: var(--font-size-xs);
  border: 1px solid var(--color-border-medium);
  border-radius: var(--radius-pill);
  background-color: var(--color-bg-surface);
  color: var(--color-text-main);
  outline: none;
  transition: all var(--transition-fast);
}

.navbar-search-input:focus {
  border-color: var(--color-primary-500);
  box-shadow: var(--shadow-glow-teal);
  width: 100%;
}

.navbar-search-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: var(--color-primary-700);
  color: #FFFFFF;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.navbar-search-btn:hover {
  background-color: var(--color-primary-800);
}

/* Header Right Utilities */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  white-space: nowrap;
}

.header-actions .btn-primary,
.header-actions .btn-ghost {
  flex-shrink: 0;
  white-space: nowrap;
}

/* Default platform language is English: Hide language selector and currency header */
.lang-selector,
#header-currency-selector-wrapper,
.currency-selector-wrapper,
.currency-dropdown,
[data-currency-selector] {
  display: none !important;
}

/* Hamburger Toggle Button */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  color: var(--color-text-main);
}

.mobile-nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary-500);
}

/* Mobile Offcanvas Drawer */
.mobile-menu-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 380px;
  height: 100vh;
  background-color: var(--color-bg-surface);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
  z-index: var(--z-modal);
  transition: right var(--transition-bounce);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.mobile-menu-drawer.is-open {
  right: 0;
}

.mobile-menu-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(13, 20, 28, 0.5);
  backdrop-filter: blur(4px);
  z-index: calc(var(--z-modal) - 1);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.mobile-drawer-header {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border-subtle);
}

.mobile-drawer-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  flex: 1;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0.5rem;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-heading);
  border-bottom: 1px solid var(--color-border-subtle);
  min-height: 44px;
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--color-primary-700);
  padding-left: 0.75rem;
}

.mobile-nav-link.active {
  color: var(--color-primary-800);
  background-color: rgba(16, 78, 70, 0.06);
  font-weight: var(--font-weight-bold);
  padding-left: 0.75rem;
  border-radius: var(--radius-xs);
}



.mobile-drawer-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border-subtle);
}