:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;--bg: #ffffff;--text: #111111;--text-muted: #666666;--surface: #f9f9f9;--border: #dddddd;--primary: #1890ff;--primary-hover: #40a9ff;--link: #1967d2;--link-hover: #1557b0;--error: #ff4d4f;--success: #52c41a;--button-bg: #1a1a1a;--button-text: #ffffff;color:var(--text);background-color:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:var(--link);text-decoration:inherit}a:hover{color:var(--link-hover)}body{margin:0;min-width:320px;min-height:100vh;color:var(--text);background-color:var(--bg)}#root{min-height:100vh;width:100%}h1{font-size:3.2em;line-height:1.1;color:var(--text)}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--button-bg);color:var(--button-text);cursor:pointer;transition:border-color .25s}button:hover{border-color:var(--primary)}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}button:disabled{opacity:.6;cursor:not-allowed}