:root{--bg-main:#f8fafc;--bg-surface:#fff;--bg-subtle:#f1f5f9;--bg-canvas:#0f172a;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#64748b;--text-inverse:#fff;--brand-primary:#2563eb;--brand-primary-hover:#1d4ed8;--brand-gradient:linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);--brand-emerald:#059669;--brand-emerald-hover:#047857;--brand-danger:#dc2626;--brand-danger-hover:#b91c1c;--border-light:#e2e8f0;--border-focus:#3b82f6;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000000d;--shadow-xl:0 20px 25px -5px #0000001f, 0 8px 10px -6px #0000000f;--shadow-paper:0 12px 28px #00000038, 0 2px 8px #0000001f;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-full:9999px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--transition-fast:.15s ease;--transition-normal:.25s 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