/* Header Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
  background-color: transparent;
}

.site-header.scrolled {
  background-color: var(--primary-dark);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  padding: 0 var(--spacing-md);
  max-width: var(--container-width);
  margin: 0 auto;
}

.logo a {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  color: var(--off-white);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 5px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--gold-accent);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Dropdown */
.nav-item-dropdown {
  position: relative;
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--primary-dark);
  min-width: 180px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  border-radius: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 1001;
  padding: 0.5rem 0;
  border-top: 2px solid var(--gold-accent);
}

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

.dropdown-link {
  display: block;
  padding: 0.7rem 1.5rem;
  color: var(--off-white);
  text-decoration: none;
  font-size: 0.9rem;
  transition: background-color 0.2s, color 0.2s;
}

.dropdown-link:hover {
  background-color: rgba(255,255,255,0.05);
  color: var(--gold-accent);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--gold-accent);
  font-size: 1.5rem;
  cursor: pointer;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  left: auto;
  width: 300px;
  max-width: 80vw;
  height: 100vh;
  background-color: var(--primary-dark);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
  box-shadow: -5px 0 15px rgba(0,0,0,0.5);
}

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

.mobile-menu .nav-links {
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.mobile-menu .nav-link {
  font-size: 1.5rem;
}

.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0,0,0,0.6);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s;
}

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