:root{--color-primary:#1d4ed8;--color-primary-hover:#1e40af;--color-primary-light:#eff6ff;--color-primary-border:#bfdbfe;--color-bg:#f8fafc;--color-bg-card:#fff;--color-bg-subtle:#f1f5f9;--color-text-primary:#0f172a;--color-text-secondary:#475569;--color-text-muted:#94a3b8;--color-border:#e2e8f0;--color-border-light:#f1f5f9;--color-ai-bg:#eff6ff;--color-ai-text:#1d4ed8;--color-ai-border:#bfdbfe;--color-enterprise-bg:#faf5ff;--color-enterprise-text:#7c3aed;--color-enterprise-border:#ddd6fe;--color-learning-bg:#fefce8;--color-learning-text:#ca8a04;--color-learning-border:#fef08a;--color-skill-expert:#1d4ed8;--color-skill-practiced:#16a34a;--color-skill-learning:#d97706;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 6px #0000000d, 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