:root{--bg:#07101c;--panel:#111e2e;--ink:#f6fbff;--muted:#a9bacb;--cyan:#2ee6ff;--violet:#9d8cff;--line:#2b3b50;--bad:#ffb45e}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;color:#000;padding:10px;z-index:9}.sitebar{display:flex;justify-content:space-between;gap:20px;padding:18px clamp(18px,5vw,64px);border-bottom:1px solid var(--line)}a{color:var(--cyan)}.sitebar a{text-decoration:none;font-weight:700}.store-link{font-size:14px}main,footer{width:min(1040px,calc(100% - 36px));margin:auto}.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:42px;align-items:center;padding:72px 0 48px}.kicker{font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--cyan);margin:0 0 10px}.hero h1{font-size:clamp(44px,8vw,86px);line-height:.96;letter-spacing:-.05em;margin:0;max-width:11ch}.lead{font-size:clamp(19px,2.4vw,24px);color:#d7e5f2;max-width:52ch}.fine{font-size:14px;color:var(--muted)}.button,button{display:inline-block;background:var(--cyan);color:#021018;border:0;border-radius:10px;padding:13px 18px;font-weight:800;text-decoration:none;font:inherit;cursor:pointer}button:focus-visible,.button:focus-visible,a:focus-visible{outline:3px solid #fff;outline-offset:3px}.secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}aside,.game,.guide,.app{background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:clamp(20px,4vw,38px)}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;font-size:38px;text-align:center}.mini-grid span{display:grid;place-items:center;aspect-ratio:1;background:#0a1523;border-radius:8px}.mini-grid .odd{color:var(--cyan)}.game{margin:28px 0}.game-head{display:flex;justify-content:space-between;gap:20px;align-items:start}.game h2,.guide h2,.app h2{font-size:clamp(28px,5vw,46px);line-height:1.05;margin:0 0 14px}.progress{display:grid;text-align:right;font-size:14px;color:var(--muted)}.board{width:min(100%,570px);display:grid;grid-template-columns:repeat(6,1fr);gap:7px;margin:26px auto}.cell{display:grid;place-items:center;aspect-ratio:1;padding:0;background:#0a1523;color:#e8f4ff;border:1px solid #34475f;border-radius:9px;font-size:clamp(22px,6vw,42px);line-height:1}.cell:hover{border-color:var(--cyan)}.cell.wrong{border-color:var(--bad);color:var(--bad);animation:nudge .12s 2}@keyframes nudge{50%{transform:translateX(2px)}}.between,.result{margin:24px 0;padding:22px;border-left:4px solid var(--violet);background:#0a1523}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.result-grid div{padding:16px;border:1px solid var(--line);border-radius:12px}.result-grid span,.result-grid small{display:block;color:var(--muted)}.result-grid strong{display:block;font-size:30px;margin:3px 0}.limit{color:#d2ddea}.actions{display:flex;flex-wrap:wrap;gap:10px}.guide{margin:28px 0}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.guide-grid article{padding:18px;background:#0a1523;border-radius:12px}.guide-grid b{color:var(--cyan)}.guide-grid p{margin-bottom:0}.app{display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:start;margin:28px 0 54px}.app img{border-radius:18px}footer{border-top:1px solid var(--line);padding:28px 0 50px;color:var(--muted);font-size:14px}@media(max-width:720px){.hero{grid-template-columns:1fr;padding-top:46px}.hero aside{display:none}.guide-grid{grid-template-columns:1fr}.app{grid-template-columns:1fr}.game-head{display:block}.progress{text-align:left;display:flex;gap:14px}.board{gap:5px}.cell{border-radius:7px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.cell.wrong{animation:none}}