:root{color-scheme:dark;--base:#111215;--panel:#1a1d23;--line:#333842;--ink:#f4f1e8;--muted:#aab0bd;--accent:#e7fb73;font:16px/1.5 system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--base);color:var(--ink)}header,main,footer{width:min(980px,calc(100% - 36px));margin:auto}header,footer{display:flex;align-items:center;gap:20px;border-bottom:1px solid var(--line);padding:18px 0}header{justify-content:space-between}header a{font-size:1.3rem;font-weight:800;text-decoration:none}header span,.tag,.scores span{font:12px ui-monospace,monospace;letter-spacing:.12em;color:var(--accent)}main{display:grid;grid-template-columns:minmax(0,500px) minmax(250px,1fr);gap:42px;padding:42px 0;align-items:start}h1{font-size:clamp(4rem,14vw,8rem);line-height:.88;letter-spacing:-.09em;margin:16px 0}h1 span{color:var(--accent)}h2{font-size:2rem;line-height:1.1;margin:12px 0}p,footer{color:var(--muted)}aside{border:1px solid var(--line);border-radius:16px;background:var(--panel);padding:24px;margin-top:42px}label{display:block;margin-top:16px}button,select,input{font:inherit;color:inherit;border:1px solid var(--line);background:#262b34;padding:9px 12px;border-radius:8px}button,select{cursor:pointer}button:disabled{opacity:.45;cursor:default}.primary{color:#121612;background:var(--accent);font-weight:750}.scores{display:flex;gap:10px;align-items:stretch;margin:18px 0 10px}.scores div{min-width:85px;padding:6px 10px;background:var(--panel);border-radius:8px}.scores strong{display:block;font-size:1.4rem}.scores button{margin-left:auto}#board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:8px;background:#2b2f38;border-radius:12px;touch-action:none;user-select:none}.tile{display:grid;place-items:center;aspect-ratio:1;background:#343a46;border-radius:7px;font-size:clamp(1rem,5vw,2.5rem);font-weight:800}.filled{background:hsl(var(--hue) 68% 72%);color:#14181b}.controls{display:flex;gap:8px}.controls button{flex:1}select,#record{width:100%;margin-top:8px}.note{font-size:.8rem}a{color:inherit}footer{border:0;border-top:1px solid var(--line);flex-wrap:wrap;font-size:.85rem}#gameStatus,#chainStatus{min-height:1.4em;overflow-wrap:anywhere}@media(max-width:720px){main{grid-template-columns:minmax(0,1fr);gap:18px;padding:24px 0}aside{margin:0}}