:root {
  --primary: var(--primary-600);
  --primary-hover: var(--primary-700);
}

[data-theme="dark"] {
  --primary: var(--primary-500);
  --primary-hover: var(--primary-400);
}

.theme-toggle {
  position: relative;
  width: 40px;
  height: 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  border-color: var(--primary);
  background: var(--bg-tertiary);
}

.theme-toggle-icon {
  font-size: 1.2rem;
  transition: transform var(--transition-fast);
}

.theme-toggle:hover .theme-toggle-icon {
  transform: scale(1.1);
}

.logo {
  font-weight: var(--weight-bold);
  font-size: var(--text-xl);
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

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

.card-glow {
  border: 1px solid var(--border-primary);
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card-glow:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}