/* Header Styles */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background-color: white;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-lg);
}

.header-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
}

/* Logo Styles */
.logo-wrapper {
  flex-shrink: 0;
}

.logo-link {
  display: block;
  transition: transform var(--transition-base);
}

.logo-link:hover {
  transform: scale(1.05);
}

.logo-link:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.logo-svg {
  width: 180px;
  height: auto;
  display: block;
}

/* Main Navigation */
.main-navigation {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - var(--spacing-xl));
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: transform var(--transition-base);
  border-radius: var(--radius-full);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  background-color: rgba(255, 107, 53, 0.08);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scaleX(1);
}

/* Dropdown Menu */
.has-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background-color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--spacing-sm);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
  z-index: var(--z-dropdown);
  margin-top: var(--spacing-xs);
}

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

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-md);
  font-family: var(--font-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
  color: var(--color-primary);
  background-color: rgba(255, 107, 53, 0.08);
  transform: translateX(4px);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 22px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-fixed) + 2);
}

.hamburger-line {
  width: 100%;
  height: 3px;
  background-color: var(--color-dark);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
  transform: translateY(9.5px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: translateX(-20px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
}

/* Mobile Navigation */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: calc(var(--z-fixed) + 1);
}

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

.mobile-navigation {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100%;
  background-color: white;
  box-shadow: var(--shadow-2xl);
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: calc(var(--z-fixed) + 2);
  overflow-y: auto;
}

.mobile-navigation.active {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-title {
  font-family: var(--font-primary);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-dark);
}

.mobile-menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-text);
  background: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mobile-menu-close:hover {
  background-color: var(--color-light-secondary);
  color: var(--color-primary);
}

.mobile-nav-menu {
  list-style: none;
  padding: var(--spacing-md);
}

.mobile-nav-item {
  margin-bottom: var(--spacing-xs);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--color-primary);
  background-color: rgba(255, 107, 53, 0.08);
}

.mobile-dropdown-toggle .dropdown-arrow {
  transition: transform var(--transition-base);
}

.mobile-dropdown-toggle.active .dropdown-arrow {
  transform: rotate(180deg);
}

.mobile-dropdown-menu {
  list-style: none;
  padding-left: var(--spacing-lg);
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.mobile-dropdown-menu.active {
  max-height: 500px;
}

.mobile-dropdown-menu li {
  margin: var(--spacing-xs) 0;
}

.mobile-dropdown-menu a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-light);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-dropdown-menu a:hover {
  color: var(--color-primary);
  background-color: rgba(255, 107, 53, 0.08);
}

/* Responsive Adjustments */
@media (max-width: 992px) {
  .main-navigation {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: var(--spacing-sm) var(--spacing-md);
  }

  .logo-svg {
    width: 150px;
  }
}

@media (max-width: 480px) {
  .logo-svg {
    width: 130px;
  }
}