.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(197, 198, 207, 0.3);
}

.navbar.scrolled {
  box-shadow: 0 4px 24px rgba(26, 43, 76, 0.08);
}

.navbar-main {
  background: var(--primary);
  color: var(--on-primary);
  padding: 0.625rem 0;
}

.navbar-top-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-contact {
  display: flex;
  gap: 2rem;
  font-family: var(--font-label);
  font-size: 0.8125rem;
}

.navbar-contact span {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.9;
}

.navbar-contact svg {
  width: 14px;
  height: 14px;
  stroke: var(--tertiary-fixed-dim);
}

.navbar-social {
  display: flex;
  gap: 1rem;
}

.navbar-social a {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.navbar-social a:hover {
  background: var(--tertiary-fixed-dim);
}

.navbar-social svg {
  width: 14px;
  height: 14px;
  fill: var(--on-primary);
}

.navbar-bottom {
  background: var(--surface-container-lowest);
  border-bottom: 1px solid rgba(197, 198, 207, 0.15);
}

.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.navbar-logo {
  width: 44px;
  height: 44px;
}

.navbar-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary);
}

.navbar-title-en {
  font-size: 0.625rem;
  font-weight: 400;
  color: var(--on-surface-variant);
  letter-spacing: 0.05em;
  display: block;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 0;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 1.5rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--on-surface);
  transition: all 0.2s ease;
  cursor: pointer;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--primary);
}

.navbar-link.active {
  background: var(--surface-container-low);
}

.navbar-link svg {
  width: 12px;
  height: 12px;
  stroke: currentColor;
  transition: transform 0.2s ease;
}

.navbar-link.has-dropdown svg {
  width: 10px;
  height: 10px;
}

.navbar-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--surface-container-lowest);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-ambient);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.2s ease;
  z-index: 100;
  overflow: hidden;
}

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

.navbar-item:hover .navbar-link svg {
  transform: rotate(180deg);
}

.navbar-dropdown a {
  display: block;
  padding: 0.875rem 1.25rem;
  font-size: 0.875rem;
  color: var(--on-surface);
  transition: all 0.15s ease;
}

.navbar-dropdown a:hover {
  background: var(--surface-container-low);
  color: var(--primary);
}

.navbar-dropdown-divider {
  height: 1px;
  background: rgba(197, 198, 207, 0.3);
  margin: 0.5rem 0;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.navbar-cta {
  background: var(--primary);
  color: var(--on-primary);
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.navbar-cta:hover {
  background: var(--primary-container);
  transform: translateY(-1px);
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.navbar-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--primary);
  transition: all 0.3s ease;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--surface);
  z-index: 999;
  padding: 1.5rem;
  overflow-y: auto;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(197, 198, 207, 0.3);
}

.mobile-menu-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-close svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary);
}

.mobile-nav-item {
  border-bottom: 1px solid rgba(197, 198, 207, 0.15);
}

.mobile-nav-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--on-surface);
}

.mobile-nav-link svg {
  width: 16px;
  height: 16px;
  stroke: var(--on-surface-variant);
  transition: transform 0.2s ease;
}

.mobile-nav-link.active {
  color: var(--primary);
}

.mobile-nav-link.expanded svg {
  transform: rotate(180deg);
}

.mobile-submenu {
  display: none;
  padding-bottom: 0.5rem;
  padding-left: 1rem;
}

.mobile-submenu.active {
  display: block;
}

.mobile-submenu a {
  display: block;
  padding: 0.75rem 0;
  font-size: 0.9375rem;
  color: var(--on-surface-variant);
}

.mobile-submenu a:hover {
  color: var(--primary);
}

.mobile-menu-footer {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(197, 198, 207, 0.3);
}

.mobile-menu-footer a {
  display: block;
  padding: 0.75rem 0;
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

@media (max-width: 1024px) {
  .navbar-menu {
    display: none;
  }

  .navbar-actions {
    display: none;
  }

  .navbar-toggle {
    display: flex;
  }

  .navbar-contact {
    display: none;
  }
}