body{font-family:system-ui,sans-serif;margin:0}#root{display:flex;flex-direction:column;align-items:center;margin-top:8vh}#board{display:grid;grid-template-columns:repeat(3,80px);gap:6px}#board button{height:80px;font-size:2.5rem;cursor:pointer}#status{margin:1rem;font-size:1.2rem}#reset{margin-top:1rem}#history{margin-top:1.5rem;font-size:.9rem;color:#444}#history h2{font-size:1rem}#history ul{padding-left:1.2rem}