.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 13, 20, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-slow);
}

.navbar.scrolled {
  background: rgba(10, 13, 20, 0.98);
  border-bottom-color: var(--color-border-2);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.navbar-brand:hover {
  color: var(--color-text);
}

.navbar-logo {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 900;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 12px rgba(0,212,255,0.3);
}

.navbar-wordmark span {
  color: var(--color-primary);
}

.navbar-tagline {
  font-size: 0.6rem;
  color: var(--color-text-3);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: block;
  line-height: 1;
  margin-top: 2px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-nav a {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.45rem 0.875rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-2);
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--color-text);
  background: var(--color-surface);
}

.navbar-nav a.active {
  color: var(--color-primary);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-main-link {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4rem 0.875rem;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-3);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.navbar-main-link:hover {
  color: var(--color-text);
  border-color: var(--color-border-2);
  background: var(--color-surface);
}

.navbar-hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

.navbar-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-2);
  border-radius: 999px;
  transition: all var(--transition);
}

.navbar-hamburger.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.navbar-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.navbar-hamburger.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.navbar-mobile {
  display: none;
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
}

.navbar-mobile.open {
  display: block;
}

.navbar-mobile-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.navbar-mobile-nav a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.875rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-2);
  text-decoration: none;
  transition: all var(--transition);
}

.navbar-mobile-nav a:hover,
.navbar-mobile-nav a.active {
  color: var(--color-primary);
  background: var(--color-surface);
}

.navbar-mobile-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0.75rem 0;
}

@media (max-width: 900px) {
  .navbar-nav {
    display: none;
  }
  .navbar-hamburger {
    display: flex;
  }
}

@media (max-width: 480px) {
  .navbar-main-link {
    display: none;
  }
}