*{margin:0;padding:0;box-sizing:border-box}:root{--primary:#10b981;--primary-dark:#059669;--secondary:#f59e0b;--danger:#ef4444;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--gray-50);color:var(--gray-900);min-height:100vh}button{cursor:pointer;border:none}button,input{outline:none;font-family:inherit}