/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.5rem 0;
  height: auto;
  min-height: 50px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--glass-border);
  border-radius: 0;
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1rem;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
  position: relative;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition-base);
  flex: 0 0 auto;
  justify-content: flex-start;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.logo-title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  color: hsl(var(--text-primary));
}

.logo-subtitle {
  font-size: 0.75rem;
  color: hsl(var(--text-muted));
  display: block;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.back-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background var(--duration-xs) var(--ease-standard), color var(--duration-xs) var(--ease-standard), transform var(--duration-xs) var(--ease-standard);
  text-decoration: none;
  white-space: nowrap;
  background: transparent;
  color: hsl(var(--text-primary));
  box-shadow: none;
}

.back-button:hover {
  background: var(--glass-bg);
  transform: translateY(-1px);
}

.theme-toggle, .theme-toggle-desktop {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: transparent;
  border: none;
  color: hsl(var(--text-primary));
  cursor: pointer;
  transition: transform var(--duration-xs) var(--ease-standard), color var(--duration-xs) var(--ease-standard);
  font-size: 1.2rem;
  padding: 0.5rem;
}

.theme-toggle:active, .theme-toggle-desktop:active {
  transform: scale(0.95);
}

@media (min-width: 768px) {
  .theme-toggle {
    display: none;
  }
  
  .theme-toggle-desktop {
    display: flex;
  }
  
  .back-button {
    padding: 0.625rem 1.25rem;
  }
  
  .logo-container {
    gap: var(--spacing-md);
  }
  
  .logo-title {
    font-size: 1.125rem;
  }
  
  .logo-subtitle {
    font-size: 0.75rem;
  }
}

/* Mobile adjustments */
@media (max-width: 767px) {
  .nav-content {
    gap: 0.5rem;
    overflow-x: hidden;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  
  .logo-container {
    gap: 0.75rem;
  }
  
  .logo-title {
    font-size: 1rem;
  }
  
  .logo-subtitle {
    font-size: 0.65rem;
  }
  
  .nav-controls {
    gap: 0.25rem;
  }
  
  .back-button {
    padding: 0.4rem 0.8rem;
    font-size: 0.75rem;
  }
  
  .theme-toggle {
    width: 2rem;
    height: 2rem;
    font-size: 1rem;
    padding: 0.25rem;
  }
  
  .logo-text {
    display: none;
  }
}