:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color:#213547;background-color:#fff;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:none}a:hover{color:#535bf2}body{margin:0;min-width:320px;min-height:100vh;background-color:#f7f7f7}#root{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:1rem;background-color:#f7f7f7}h1,h2,h3{margin-bottom:1rem;text-align:center;color:#333}input{width:100%;padding:12px;margin-bottom:10px;border:1px solid #ccc;border-radius:6px;font-size:1rem;box-sizing:border-box}input:focus{border-color:#646cff;outline:none}button{border-radius:6px;border:none;padding:12px 16px;font-size:1rem;font-weight:500;font-family:inherit;background-color:#646cff;color:#fff;cursor:pointer;transition:background-color .2s;width:100%}button:hover{background-color:#535bf2}button:disabled{background-color:#ccc;cursor:not-allowed}@media (prefers-color-scheme: dark){:root{color:#fff;background-color:#1a1a1a}#root{background-color:#1a1a1a}input{background-color:#2a2a2a;color:#fff;border:1px solid #444}button{background-color:#44d}}