:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", Monaco, Consolas, monospace;--color-text-primary: #1a1a1a;--color-text-secondary: #666;--color-text-info: #185FA5;--color-background-primary: #fff;--color-background-secondary: #f7f7f7;--color-background-info: #E6F4FF;--color-border-secondary: #e0e0e0;--color-border-tertiary: #eee;--border-radius-md: 8px;--border-radius-lg: 12px}body{margin:0;font-family:var(--font-sans);background:#fafafa;color:var(--color-text-primary)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}