:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:#ffffffde;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#242424;font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;font-weight:400;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}a{color:#646cff;-webkit-text-decoration:inherit;text-decoration:inherit;font-weight:500}a:hover{color:#535bf2}body{place-items:center;min-width:320px;min-height:100vh;margin:0;display:flex}h1{font-size:3.2em;line-height:1.1}button{cursor:pointer;background-color:#1a1a1a;border:1px solid #0000;border-radius:8px;padding:.6em 1.2em;font-family:inherit;font-size:1em;font-weight:500;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}body{color:#fff;background-color:#1e1e1e;margin:0;font-family:Segoe UI,sans-serif}.app-container{color:#fff;background-color:#1e1e1e;flex-direction:column;justify-content:center;align-items:center;width:100vw;height:100vh;font-family:Segoe UI,sans-serif;display:flex}.title{margin-bottom:20px;font-size:2.5rem;font-weight:700}.board-wrapper{justify-content:center;align-items:center;width:340px;height:340px;margin:0 auto;display:flex;position:relative}.board{grid-template-rows:repeat(3,100px);grid-template-columns:repeat(3,100px);gap:10px;display:grid}.cell{cursor:pointer;z-index:2;background-color:#333;border-radius:10px;justify-content:center;align-items:center;width:100px;height:100px;font-size:2rem;transition:all .2s;display:flex}.cell.highlight{background-color:#444;box-shadow:0 0 10px 2px #0af}.reset-btn{color:#fff;cursor:pointer;background-color:#007bff;border:none;border-radius:5px;margin-top:20px;padding:10px 20px;font-weight:700}.winning-line{transform-origin:50%;z-index:3;background-color:#ff5252;border-radius:4px;width:310px;height:6px;transition:all .4s ease-in-out;position:absolute;top:50%;left:50%}