:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6;font-weight:400;color:#333;background-color:#fafafa;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--primary: #646cff;--primary-hover: #535bf2;--success: #28a745;--success-hover: #218838;--danger: #dc3545;--danger-hover: #c82333;--text-primary: #333;--text-secondary: #666;--text-muted: #888;--bg-light: #fafafa;--bg-white: #ffffff;--bg-card: #ffffff;--border-color: #eee;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .08);--shadow-md: 0 4px 20px rgba(0, 0, 0, .08);--shadow-lg: 0 6px 24px rgba(0, 0, 0, .12);--border-radius: 8px}*{box-sizing:border-box;margin:0;padding:0}a{font-weight:500;color:var(--primary);text-decoration:inherit;transition:color 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