:root{--bg:#0B0F1E;--panel:#151B33;--ink:#E8EDFF;--muted:#9AA6D1;--laser:#FF4D6D;--gold:#FFD166;--font:"Rubik","Segoe UI",system-ui,sans-serif;color-scheme:dark}
*{box-sizing:border-box}
html,body{background:var(--bg)}
body{margin:0;color:var(--ink);font:16px/1.35 var(--font);padding:6px 10px 12px;-webkit-tap-highlight-color:transparent;background:radial-gradient(110% 70% at 50% 0%,#1E2750 0%,#070A14 85%) fixed,var(--bg)}
.app{max-width:720px;margin-inline:auto;display:grid;gap:10px}
.bar{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:44px}
.back{color:var(--muted);text-decoration:none;font-weight:600;font-size:15px}
.title{margin:0;font-weight:800;font-size:clamp(1.3rem,4vw,1.8rem)}
.title span{color:var(--laser)}
button{font:inherit;cursor:pointer}
.btn{border:0;border-radius:12px;background:#E8EDFF;color:#0B0F1E;font-weight:800;padding:9px 14px;box-shadow:0 4px 0 rgba(0,0,0,.4)}
.btn:active{translate:0 3px;box-shadow:0 1px 0 rgba(0,0,0,.4)}
.btn.primary{background:var(--gold);color:#3A2A00;box-shadow:0 4px 0 #B8902A}
.btn.big{width:100%;font-size:1.1rem;padding:12px}
.btn.small{padding:7px 12px;font-size:14px}
:focus-visible{outline:3px solid #8AB4FF;outline-offset:3px}
.stats{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;align-items:center}
.chip{background:var(--panel);border-radius:999px;padding:4px 12px;font-size:14px;font-weight:600;color:var(--muted)}
.chip b{color:var(--ink);font-variant-numeric:tabular-nums}
.wrap{display:grid;place-items:center}
.board{--n:6;--cs:min(calc((100vw - 44px) / var(--n)),calc((100dvh - 200px) / var(--n)),76px);position:relative;display:grid;grid-template-columns:repeat(var(--n),var(--cs));grid-template-rows:repeat(var(--n),var(--cs));gap:0;background:var(--panel);border-radius:14px;padding:6px;box-shadow:0 12px 30px rgba(0,0,0,.45)}
.c{position:relative;border:0;padding:0;background:transparent;box-shadow:inset 0 0 0 1px rgba(154,166,209,.12);display:grid;place-items:center}
.c svg{width:100%;height:100%;display:block}
.c.m{cursor:pointer}
.c.m:hover{background:rgba(255,255,255,.05)}
.c.wall{background:#2C3560;border-radius:6px;box-shadow:inset 0 -5px 0 rgba(0,0,0,.25)}
.beam{position:absolute;inset:6px;width:calc(100% - 12px);height:calc(100% - 12px);pointer-events:none;z-index:2}
.msg{margin:0;text-align:center;min-height:1.3em;font-weight:700;color:var(--muted)}
.acts{display:flex;gap:8px;justify-content:center}
.overlay{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:16px;background:rgba(3,5,12,.78);overflow-y:auto}
.overlay[hidden]{display:none}
.sheet{width:100%;max-width:460px;background:#fff;color:#0B0F1E;border-radius:22px;padding:18px 20px;display:grid;gap:10px}
.sheet.center{text-align:center;justify-items:center}
.sheet h2{margin:0;font-size:1.5rem}
.help{margin:0;font-size:13.5px;color:#55608A;line-height:1.55}
.help b{color:#0B0F1E}
.stars{font-size:2.6rem;line-height:1;letter-spacing:6px}
.grid-l{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
.grid-l button{border:0;border-radius:10px;background:#E8EDFF;color:#0B0F1E;font-weight:800;padding:8px 0 4px;display:grid;gap:2px}
.grid-l button small{font-size:11px;color:#B8902A;min-height:12px}
.grid-l button.cur{outline:3px solid #B8902A}
.grid-l button:disabled{opacity:.45}