:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}#root{width:100%;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;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}}.toast{position:fixed;top:2rem;right:2rem;z-index:1000;animation:slideIn .3s ease-out}.toast-content{background:linear-gradient(45deg,#28a745,#20c997);color:#fff;padding:1rem 2rem;border-radius:8px;font-size:1.2rem;font-weight:700;box-shadow:0 4px 20px #0003;text-align:center;min-width:250px}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes fadeOut{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(20px)}}.app-container{display:flex;justify-content:center;align-items:center;gap:4rem;min-height:100vh;padding:2rem;font-family:Arial,sans-serif}.game{display:flex;flex-direction:column;align-items:center;text-align:center}.game h1{color:#fff;margin:0 0 1rem;font-size:4rem;font-weight:700;text-shadow:2px 2px 4px rgba(0,0,0,.5);letter-spacing:.1em;background:linear-gradient(45deg,#007bff,#20c997);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-align:center}.game-mode-selector{display:flex;gap:1rem;justify-content:center;margin-bottom:2rem}.game-mode-selector button{padding:.8rem 1.5rem;border:2px solid #007bff;background:#fff;color:#007bff;border-radius:5px;cursor:pointer;font-size:1rem;transition:all .3s ease}.game-mode-selector button:hover,.game-mode-selector button.active{background:#007bff;color:#fff}.game-info{margin-bottom:2rem;font-size:1.2rem;font-weight:700}.winner{color:#28a745;font-size:1.4rem}.current-player{color:#007bff}.board{display:grid;grid-template-columns:repeat(3,100px);grid-template-rows:repeat(3,100px);gap:5px;justify-content:center;margin-bottom:2rem}.cell{width:100px;height:100px;border:2px solid #333;background:#fff;font-size:2rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;border-radius:8px}.cell:hover:not(:disabled){background:#f0f0f0;transform:scale(1.05)}.cell:disabled{cursor:not-allowed}.cell.filled{background:#e9ecef}.leaderboard{background:#f8f9fa;padding:1.5rem;border-radius:10px;box-shadow:0 2px 10px #0000001a;min-width:200px;display:flex;flex-direction:column;justify-content:center}.leaderboard h2{color:#333;margin:0 0 1.5rem;text-align:center;font-size:1.5rem}.score-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem;margin-bottom:.5rem;background:#fff;border-radius:5px;box-shadow:0 1px 3px #0000001a}.score-label{font-weight:500;color:#333}.score-value{font-weight:700;color:#007bff;font-size:1.2rem}.reset-scores-button{width:100%;padding:.75rem 1rem;font-size:.9rem;background:#dc3545;color:#fff;border:none;border-radius:5px;cursor:pointer;transition:background .3s ease;margin-top:1rem}.reset-scores-button:hover{background:#c82333}.reset-button{padding:1rem 2rem;font-size:1.1rem;background:#28a745;color:#fff;border:none;border-radius:5px;cursor:pointer;transition:background .3s ease}.reset-button:hover{background:#218838}