.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  background: transparent;
  transition: background var(--dur-standard) var(--q-ease-out),
              border-color var(--dur-standard) var(--q-ease-out);
}

.navbar.scrolled {
  background: rgba(12, 12, 22, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--q-stroke);
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(250, 250, 250, 0.85);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.navbar-logo {
  width: 22px;
  height: 27px;
}

.navbar-logo path,
.navbar-logo line {
  fill: none;
  stroke: var(--q-text-secondary);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.navbar-link {
  font-size: var(--text-caption);
  font-weight: 500;
  color: var(--q-text-secondary);
  transition: color var(--dur-micro) var(--q-ease-out);
}

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

.theme-toggle {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--q-text-secondary);
  transition: color var(--dur-micro);
}

.theme-toggle:hover {
  color: var(--q-text);
}

.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

@media (max-width: 768px) {
  .navbar-links .navbar-link { display: none; }
  .navbar-links { gap: var(--space-md); }
}