/* Header Styles */
.site-header {
  position: relative;
  z-index: 1000;
  box-shadow: var(--bv-shadow-sm);
  background-color: var(--bv-bg-primary);
}

/* Top Utility Bar */
.top-bar {
  background-color: var(--bv-primary-dark);
  color: var(--bv-text-light);
  padding: 8px 0;
  font-size: 0.875rem;
}

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

.top-bar-contact {
  display: flex;
  gap: 20px;
}

.top-bar-contact a {
  color: var(--bv-text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.top-bar-contact a:hover {
  color: var(--bv-primary-light);
}

.top-bar-social {
  display: flex;
  gap: 15px;
}

.top-bar-social a,
.top-bar-social span,
.top-bar-social-icon {
  color: var(--bv-text-light);
  cursor: default;
  transition: color var(--bv-transition-normal);
}

.top-bar-social a:hover,
.top-bar-social span:hover,
.top-bar-social-icon:hover {
  color: var(--bv-primary-light);
}

/* Main Navigation */
.main-nav-wrapper {
  padding: 15px 0;
  background-color: var(--bv-bg-primary);
  transition: all var(--bv-transition-normal);
}

/* Glassmorphism Sticky Header */
.site-header.is-sticky .main-nav-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 10px 0;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  box-shadow: var(--bv-shadow-md);
  animation: slideDown 0.3s ease-in-out;
}

@keyframes slideDown {
  from { transform: translateY(-100%); }
  to { transform: translateY(0); }
}

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

.site-branding {
  max-width: 250px;
}

.site-branding img {
  max-height: 60px;
  width: auto;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--bv-primary);
  margin: 0;
}

.main-navigation ul {
  list-style: none;
  display: flex;
  gap: 25px;
  margin: 0;
  padding: 0;
}

.main-navigation li {
  position: relative;
}

.main-navigation a {
  color: var(--bv-text-dark);
  font-weight: 500;
  padding: 10px 0;
  display: block;
}

.main-navigation a:hover,
.main-navigation .current-menu-item > a {
  color: var(--bv-primary);
}

/* Sub-menus */
.main-navigation ul ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--bv-bg-primary);
  box-shadow: var(--bv-shadow-lg);
  min-width: 200px;
  flex-direction: column;
  gap: 0;
  padding: 10px 0;
  border-radius: 4px;
  border-top: 3px solid var(--bv-primary);
}

.main-navigation li:hover > ul {
  display: flex;
}

.main-navigation ul ul a {
  padding: 8px 20px;
  font-weight: 400;
}

.main-navigation ul ul a:hover {
  background-color: var(--bv-bg-secondary);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--bv-primary);
  cursor: pointer;
}