.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--color-card);
  box-shadow: var(--shadow-sm);
  z-index: var(--z-index-fixed);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.navbar-logo {
  display: flex;
  align-items: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  transition: color var(--transition-fast);
}

.navbar-logo:hover {
  color: var(--color-primary);
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: var(--space-2);
  color: var(--color-primary);
}

.logo-text {
  letter-spacing: -0.5px;
}

.navbar-menu {
  display: flex;
  gap: var(--space-6);
}

.navbar-link {
  position: relative;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  padding: var(--space-2) 0;
}

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

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

.navbar-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.theme-toggle {
  position: relative;
  overflow: hidden;
}

.theme-toggle .icon-sun {
  display: block;
}

.theme-toggle .icon-moon {
  display: none;
}

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

[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

.profile-link {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.navbar-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-2);
}

@media (max-width: 992px) {
  .navbar-menu {
    gap: var(--space-4);
  }
}

@media (max-width: 768px) {
  .navbar-menu {
    position: fixed;
    top: 4rem;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-card);
    padding: var(--space-4);
    gap: var(--space-4);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
    z-index: var(--z-index-fixed);
  }
  
  .navbar-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .navbar-link.active::after {
    bottom: -2px;
  }
  
  .navbar-toggle {
    display: block;
  }
}

@media (max-width: 576px) {
  .navbar-actions {
    gap: var(--space-1);
  }
  
  .logo-text {
    display: none;
  }
}