:root{--bg: #15110a;--panel: #211a10;--line: #38301f;--ink: #f3ecdd;--dim: #b8a888;--accent: #e8a13c;--x: #f0d49a;--kill: #e8533c}*{box-sizing:border-box}html,body{margin:0;height:100%}body{background:radial-gradient(900px 560px at 50% -8%,#241a0e,var(--bg));color:var(--ink);font-family:system-ui,-apple-system,Segoe UI,sans-serif;display:flex;justify-content:center;-webkit-user-select:none;user-select:none}#app{width:100%;max-width:620px;padding:12px 12px 26px}header{text-align:center;margin-bottom:6px}h1{margin:0;font-size:27px;letter-spacing:5px;font-weight:800;color:var(--accent)}.sub{margin:2px 0 0;color:var(--dim);font-size:13px}.sub em{color:var(--kill);font-style:normal;font-weight:700}.bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center;margin:8px 0}.seg{display:inline-flex;background:var(--panel);border:1px solid var(--line);border-radius:999px;overflow:hidden}.seg button{background:none;border:none;color:var(--dim);padding:6px 12px;font:600 13px system-ui;cursor:pointer}.seg button.active{background:var(--accent);color:#1a1206}.btn{background:var(--panel);border:1px solid var(--line);color:var(--ink);padding:7px 14px;border-radius:999px;font:700 13px system-ui;cursor:pointer}.btn:hover{border-color:var(--accent)}.status{text-align:center;min-height:20px;color:var(--dim);font-size:13px;font-weight:600;margin:6px 0}.stage{position:relative;display:flex;justify-content:center}.boards{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;width:100%}.boards.count-1 .board{width:min(300px,80vw)}.boards.count-3 .board{width:min(180px,28vw)}.board{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:4px;aspect-ratio:1;padding:8px;background:#2c2414;border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 28px #00000080;transition:opacity .2s}.board.dead{opacity:.58;filter:saturate(.5)}.cell{display:flex;align-items:center;justify-content:center;aspect-ratio:1;border:none;border-radius:8px;background:#3a3019;color:var(--x);font-size:clamp(20px,7vw,44px);font-weight:800;line-height:1;cursor:pointer;transition:background .12s,transform .05s}.cell:disabled{cursor:default}.cell:not(:disabled):hover{background:#4a3d20}.cell.x{background:#332a16;cursor:default}.cell.kill{background:var(--kill);color:#fff}.cell.hintcell{box-shadow:inset 0 0 0 3px var(--accent);animation:ppr-hint 1s ease-in-out infinite}@keyframes ppr-hint{0%,to{box-shadow:inset 0 0 0 3px var(--accent)}50%{box-shadow:inset 0 0 0 3px transparent}}.deadbadge{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;font-weight:800;letter-spacing:3px;font-size:18px;color:#e8533c00}.board.dead .deadbadge{color:#e8533cd9;text-shadow:0 2px 8px rgba(0,0,0,.6)}.overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:#0c0904c7;border-radius:12px;backdrop-filter:blur(3px)}.overlay.hidden{display:none}.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px 26px;text-align:center;max-width:360px}.card h2{margin:0 0 6px;font-size:24px;color:var(--accent)}.card p{margin:6px 0;color:var(--dim);font-size:14px}.card .row{display:flex;gap:8px;justify-content:center;margin-top:14px}.hint{text-align:center;color:var(--dim);font-size:12px;margin-top:12px}