.site-header {
  position: fixed;
  top: 0; right: 0; left: 0;
  z-index: var(--z-header);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.5);
  transition: all var(--transition);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 2rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-navy);
  text-decoration: none;
}
.site-logo:hover { color: var(--color-electric); }

.site-logo-icon {
  width: 45px;
  height: 45px;
  object-fit: contain;
}

.main-nav ul {
  display: flex;
  gap: 0.3rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: block;
  padding: 0.7rem 1.2rem;
  color: var(--color-charcoal);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  position: relative;
  transition: all var(--transition);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 50%;
  transform: translateX(50%);
  width: 0;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: 3px;
  transition: width var(--transition);
}

.main-nav a:hover,
.main-nav .current-menu-item a {
  color: var(--color-electric);
}
.main-nav a:hover::after,
.main-nav .current-menu-item a::after {
  width: 25px;
}

.header-cta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.mobile-toggle {
  display: none;
  background: var(--gradient-primary);
  border: none;
  color: white;
  width: 45px;
  height: 45px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 1.2rem;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 320px;
  max-width: 90vw;
  height: 100vh;
  background: white;
  z-index: var(--z-modal);
  padding: 2rem 1.5rem;
  box-shadow: -10px 0 40px rgba(0,0,0,0.15);
  transition: right var(--transition);
  overflow-y: auto;
}
.mobile-menu.open { right: 0; }

.mobile-menu-close {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--color-light);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
}

.mobile-menu ul {
  list-style: none;
  padding: 0;
  margin: 3rem 0 0;
}
.mobile-menu li { margin-bottom: 0.5rem; }
.mobile-menu a {
  display: block;
  padding: 1rem;
  color: var(--color-charcoal);
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}
.mobile-menu a:hover {
  background: var(--gradient-primary);
  color: white;
  border-color: transparent;
  transform: translateX(-5px);
}

.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 37, 87, 0.6);
  backdrop-filter: blur(5px);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.menu-overlay.show {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 992px) {
  .main-nav, .header-cta .btn { display: none; }
  .mobile-toggle { display: flex; align-items: center; justify-content: center; }
}

body { padding-top: 80px; }
.home-page { padding-top: 0; }
.home-page .site-header { background: transparent; border-bottom-color: transparent; }
.home-page .site-header.scrolled { background: rgba(255, 255, 255, 0.98); }
.home-page:not(.scrolled-page) .site-logo,
.home-page:not(.scrolled-page) .main-nav a { color: white; }