/* ==========================================================================
   HEADER & NAVIGATION
   High-End Editorial Masthead & Navigation
   ========================================================================== */

.site-header {
  width: 100%;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 1000;
}

/* 1. Utility Top Bar */
.header-utility-bar {
  background-color: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-caption);
  color: var(--color-text-muted);
  padding: 0.35rem 0;
}

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

.utility-left, .utility-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

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

.utility-item .badge {
  font-weight: 700;
  color: var(--color-text);
}

.market-stat {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
}

.market-stat.positive {
  color: #16A34A;
}

.edition-badge {
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text);
}

/* 2. Main Editorial Masthead */
.header-masthead {
  padding: var(--space-lg) 0 var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.masthead-logo {
  display: inline-block;
  transition: opacity var(--transition-fast);
}

.masthead-logo:hover {
  opacity: 0.9;
}

.masthead-logo img, .masthead-logo svg {
  height: 48px;
  width: auto;
}

.masthead-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Header Buttons */
.btn-search-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  font-size: var(--text-body-sm);
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.btn-search-trigger:hover {
  background-color: var(--color-bg-muted);
  border-color: var(--color-border-dark);
  color: var(--color-text);
}

.key-hint {
  display: inline-block;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-muted);
}

.btn-subscribe-header {
  background-color: var(--color-accent);
  color: #FFFFFF;
  padding: 0.55rem 1.15rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.btn-subscribe-header:hover {
  background-color: var(--color-accent-hover);
}

/* 3. Primary Navigation Bar */
.header-nav-bar {
  background-color: var(--color-bg);
  border-bottom: 2px solid var(--color-primary);
  position: relative;
}

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

.nav-links-list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 0.85rem 0;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

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

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

/* Dropdown / Subcategories */
.has-dropdown:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  width: 260px;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm) 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-fast);
  z-index: 500;
}

.dropdown-link {
  display: block;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  background-color: var(--color-bg-subtle);
  color: var(--color-accent);
  padding-left: 1.5rem;
}

/* Mobile Hamburger Button */
.btn-mobile-toggle {
  display: none;
  padding: 0.5rem;
  color: var(--color-text);
}

/* Mobile Menu Drawer */
.mobile-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background-color: #FFFFFF;
  border-right: 1px solid var(--color-border);
  box-shadow: var(--shadow-modal);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  overflow-y: auto;
}

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

.drawer-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 9998;
}

.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-md);
}

.btn-drawer-close {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-text-muted);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav-link {
  display: block;
  padding: 0.65rem 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.mobile-nav-link:hover {
  background-color: var(--color-bg-subtle);
  color: var(--color-accent);
}

.mobile-subnav {
  padding-left: 1rem;
  margin-bottom: var(--space-xs);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-subnav a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding: 0.25rem 0;
}

.mobile-subnav a:hover {
  color: var(--color-accent);
}