*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #4a6fa5;--secondary-color: #2b4c7e;--accent-color: #ff6b6b;--bg-color: #f8f9fa;--card-bg: #ffffff;--text-color: #333;--text-light: #666;--border-color: #e0e0e0;--success-color: #6bcf7f;--warning-color: #ffb74d;--danger-color: #ff6b6b;--info-color: #64b5f6;--border-radius: 12px;--shadow: 0 4px 12px rgba(0, 0, 0, .08);--shadow-hover: 0 8px 24px rgba(0, 0, 0, .12)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-color);color:var(--text-color);line-height:1.6}#root{min-height:100vh;display:flex;flex-direction:column}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}button{cursor:pointer;border:none;outline:none;transition:all .2s 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