: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}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{background-color:#007bff;color:#fff;border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer}button:hover{background-color:#0056b3}.scoreboard{grid-area:scoreboard;position:relative;background:#6160601a;padding:1rem;border-radius:12px;width:400px;box-shadow:0 2px 6px #0000001a;box-sizing:border-box}.scoreboard__clear-btn{position:absolute;top:8px;right:8px;border:none;background:transparent;padding:6px;border-radius:6px;cursor:pointer;color:#666;transition:background-color .12s,color .12s,transform .08s}.scoreboard__clear-btn:hover{background:#0000000f;color:#222;transform:translateY(-1px)}.scoreboard__clear-btn:active{transform:translateY(0)}.scoreboard ul{list-style:none;padding:0;margin-top:.5rem}.scoreboard li{margin-bottom:.5rem}.scoreboard__score-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.scoreboard__score-meta{font-size:.85rem;color:#555;margin-left:.5rem}@media screen and (max-width:830px){.scoreboard{width:100%;max-width:400px;padding:1.5rem}}#root{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.app{display:grid;justify-content:center;align-items:flex-start;gap:2rem;padding:2rem;font-family:Arial,sans-serif;grid-template-areas:"difficulty difficulty" "game scoreboard"}.app__difficulty-selector{grid-area:difficulty;margin-bottom:1rem;display:flex;justify-content:flex-end;gap:1rem}.app__difficulty-selector h3{margin:0;align-self:center}.app__difficulty-selector select{padding:.4rem;border-radius:6px;border:1px solid #ccc;margin-left:.5rem;height:auto}.app__game-area{grid-area:game;background:#6160601a;padding:1.5rem;border-radius:12px;box-shadow:0 2px 6px #0000001a;max-width:400px;text-align:center}.app__input-area input{padding:.5rem;width:100px;margin-right:.5rem}@media screen and (max-width:830px){.app{align-items:center;grid-template-areas:"difficulty" "game" "scoreboard"}}