*{box-sizing:border-box}:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5;font-weight:400;color:#213547;background-color:#f8f9fa;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(135deg,#f8f9fa,#e9ecef)}.app button{border-radius:4px;border:1px solid #ccc;padding:.5em 1em;font-size:.9em;font-weight:500;font-family:inherit;background-color:#fff;cursor:pointer;transition:all .2s}.app button:hover{border-color:#999;background-color:#f5f5f5}.app button:focus,.app button:focus-visible{outline:2px solid #2196f3;outline-offset:2px}