:root{color-scheme:dark;--bg:#080d17;--panel:#121b2b;--panel2:#192338;--line:#303c55;--txt:#f3f4fb;--sub:#bac5db;--lilac:#b69fff;--mint:#71e4cb;--sun:#f5c785;--pink:#f5a4cc;--radius:20px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,'Segoe UI',Arial,sans-serif;color:var(--txt);line-height:1.6;background:radial-gradient(ellipse 60% 35% at 85% 0%,#282b51 0%,transparent 90%),radial-gradient(ellipse 35% 28% at 0% 40%,#14374055 0%,transparent 100%),var(--bg)}a{color:inherit;text-decoration:none}p{color:var(--sub)}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--mint);outline-offset:3px}.wrap{width:min(1170px,calc(100% - 34px));margin:0 auto}.skip{position:absolute;left:-9999px}.skip:focus{left:20px;top:18px;background:white;color:#131727;padding:10px;z-index:99}.top{position:sticky;top:0;z-index:20;background:#0b1122ec;backdrop-filter:blur(14px);border-bottom:1px solid #ffffff1a}.nav{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:76px}.brand{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:850;letter-spacing:-.04em;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:linear-gradient(130deg,var(--lilac),var(--mint));color:#14152d;font-weight:900;box-shadow:0 0 27px #b69fff44;font-size:1.45rem}.nav-right{display:flex;align-items:center;gap:18px}.nav-right>a{font-size:.9rem;color:#d0d8ec}.nav-right>a:hover{color:white}.lang-picker{background:#19243a;color:#f5f3ff;border:1px solid #4a5675;border-radius:10px;padding:8px;font-size:.88rem;min-width:112px}.lang-picker option{background:#182038}.hero{display:grid;grid-template-columns:1.07fr .93fr;align-items:center;gap:20px;padding:74px 0 80px}.eyebrow{display:inline-flex;gap:10px;align-items:center;border:1px solid #555075;border-radius:100px;padding:7px 12px;font-size:.76rem;font-weight:800;text-transform:uppercase;letter-spacing:.12em;color:#d6caff}.eyebrow:before{content:'';height:7px;width:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 13px var(--mint)}h1,h2,h3{line-height:1.17;letter-spacing:-.038em;overflow-wrap:anywhere}h1{font-size:clamp(2.6rem,5.25vw,5.4rem);margin:22px 0 16px}h2{font-size:clamp(1.75rem,3.1vw,2.65rem);margin:12px 0}h3{font-size:1.25rem;margin:12px 0 8px}h1 .gradient,.gradient{background:linear-gradient(100deg,#e0bbff,#84d9e2);color:transparent;background-clip:text;-webkit-background-clip:text}.hero p{font-size:1.1rem;max-width:650px}.btn{border:0;border-radius:11px;color:#121b2d;background:linear-gradient(120deg,#c6b6ff,#85e5de);padding:13px 19px;display:inline-flex;align-items:center;justify-content:center;font-size:.99rem;font-weight:800;line-height:1.3;min-height:46px}.btn:hover{filter:brightness(1.08)}.btn.alt{background:#1b2638;border:1px solid #4c5875;color:#e7e9fb}.actions{display:flex;flex-wrap:wrap;gap:11px;margin:25px 0}.chips{display:flex;flex-wrap:wrap;gap:8px;color:#dae4f5}.chips span{font-size:.78rem;background:#ffffff0b;padding:6px 11px;border:1px solid #ffffff1b;border-radius:100px}.brain-orbit{display:grid;place-items:center;position:relative;aspect-ratio:1;max-width:460px;width:100%;margin:0 auto;background:radial-gradient(circle at 49% 45%,#282c5177 0%,transparent 66%)}.brain-orbit:before,.brain-orbit:after{content:'';border:1px solid #a99fff44;border-radius:50%;position:absolute;inset:7%;box-shadow:0 0 40px #a99fff17}.brain-orbit:after{inset:17%;border-style:dashed;animation:spin 32s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.brain-orbit svg,.brain-orbit img{width:71%;height:auto;max-width:100%;z-index:1;filter:drop-shadow(0 12px 48px #8d81f877)}.orbit-chip{position:absolute;z-index:2;border:1px solid #7e7b9a80;padding:9px 12px;background:#121a2bd9;color:#e2ddf8;backdrop-filter:blur(10px);border-radius:11px;font-size:.76rem;font-weight:650}.orbit-chip.a{top:19%;left:-1%}.orbit-chip.b{bottom:17%;right:0}.section{padding:48px 0 70px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-head>p{max-width:480px;margin:0}.overline{color:var(--mint);text-transform:uppercase;letter-spacing:.13em;font-weight:800;font-size:.75rem}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.tile{display:flex;flex-direction:column;align-items:flex-start;background:linear-gradient(155deg,#1b2540,#111b2c);border:1px solid #34415c;border-radius:20px;padding:25px;min-height:240px;transition:transform .18s,border .18s}.tile:hover{transform:translateY(-4px);border-color:#b09cfa}.tile p{margin:0 0 15px;font-size:.91rem}.tile .more{margin-top:auto;color:#a6efe3;font-weight:800;font-size:.86rem}.emblem{display:grid;place-items:center;font-size:1.58rem;width:48px;height:48px;background:#7669aa33;border:1px solid #9181d76e;border-radius:14px;color:#dbcfff}.section-b{background:#ffffff06;border-block:1px solid #ffffff0d}.banner{margin-top:35px;display:flex;justify-content:space-between;align-items:center;gap:22px;border-radius:20px;padding:28px;background:linear-gradient(115deg,#22334b,#26234b);border:1px solid #575480}.banner p{max-width:700px;margin:8px 0}.footer{border-top:1px solid #344057;margin-top:45px;padding:40px 0;color:#bbc6d9}.footer-in{display:flex;justify-content:space-between;gap:25px}.footer-links{display:flex;flex-wrap:wrap;gap:17px;font-size:.9rem}.footer-links a{text-decoration:underline;text-underline-offset:3px}.note{font-size:.82rem;color:#acbcd1}.page-head{padding:55px 0 30px}.page-head h1{font-size:clamp(2.2rem,4.6vw,3.8rem);margin:10px 0}.page-head p{max-width:800px}.crumb{color:#91d9db;font-size:.84rem}.crumb:hover{text-decoration:underline}.game-shell{display:grid;grid-template-columns:1.1fr .7fr;gap:22px;margin:24px auto 50px}.panel{background:linear-gradient(150deg,#19243a,#111a29);border:1px solid #3b4c65;border-radius:20px;padding:27px;min-height:330px}.panel h2{font-size:1.3rem;margin:0 0 15px}.panel.help{min-height:0}.panel.help p{line-height:1.8}.play-stage{margin:20px 0;min-height:180px;display:flex;flex-direction:column;gap:14px;align-items:stretch;justify-content:center}.message{min-height:50px;color:#d8e7f0;border:1px solid #415168;border-radius:12px;background:#101a2b;padding:12px 15px;margin:12px 0;white-space:pre-line}.stats{font-weight:800;color:var(--mint);min-height:28px;letter-spacing:.01em}.game-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:7px}.game-grid.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));max-width:350px;margin:auto;width:100%}.game-grid.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));max-width:370px;margin:auto;width:100%}.cell{border:1px solid #4d5e7d;border-radius:9px;background:#25314b;color:white;min-height:51px;font-size:1.35rem;display:grid;place-items:center;touch-action:manipulation}.grid-3 .cell{min-height:86px}.grid-4 .cell{min-height:70px}.cell.lit{background:#76e5d0!important;color:#102f33!important;box-shadow:0 0 25px #72efce6b}.cell.chosen{background:#6c64a5;border-color:#b2aaff}.cell:hover:enabled{border-color:#d5c3ff}.choices{display:grid;gap:10px}.choice{border:1px solid #52617d;background:#212d46;border-radius:12px;padding:13px 16px;text-align:left;color:#eef1fa;min-height:49px}.choice:hover:enabled{border-color:#c3aeff}.choice.correct{background:#224a41;border-color:#8aefcd}.choice.wrong{background:#4a2935;border-color:#f5adbf}.game-input{display:block;width:100%;border:1px solid #5c7190;background:#111b30;border-radius:12px;color:white;padding:13px 16px;font-size:1.1rem;min-height:51px}.arena{border:1px solid #617088;border-radius:17px;background:#344258;color:#fff;display:grid;place-items:center;min-height:224px;padding:25px;text-align:center;font-size:clamp(1.45rem,3vw,2.1rem);font-weight:800;user-select:none;touch-action:manipulation;cursor:pointer}.arena.wait{background:#64434f}.arena.go{background:#1b7765}.arena:focus-visible{outline:3px solid var(--mint)}.word-ink{font-size:clamp(2.35rem,7vw,4.5rem);font-weight:900;text-align:center;margin:18px 0 20px}.color-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.color-row button{border:1px solid #65738a;border-radius:10px;background:#222c43;color:#fff;min-height:54px;font-weight:800}.number-flash{font-size:clamp(2.1rem,5vw,3.2rem);text-align:center;color:#e0d0ff;letter-spacing:.2em;font-weight:900;word-break:break-all;min-height:68px}.article{max-width:790px;margin:30px auto 80px}.article p,.article li{font-size:1.06rem;line-height:1.86}.article h2{margin-top:34px;font-size:1.65rem}.article ul{padding-left:25px;color:var(--sub)}.article a:not(.btn){color:#a3eada;text-decoration:underline}.mono{font-variant-numeric:tabular-nums}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.hidden{display:none!important}.hint{font-size:.84rem;color:#bbc8dd}.about-layout{max-width:830px;margin:25px auto 60px} @media(max-width:900px){.hero{grid-template-columns:1fr;gap:0;padding:40px 0 60px}.hero .brain-orbit{max-width:330px;order:-1}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.nav-right{gap:11px}.section-head{display:block}.section-head>p{margin:12px 0}} @media(max-width:700px){.game-shell{grid-template-columns:1fr}.footer-in{display:block}.footer-links{margin-top:20px}.banner{display:block}.banner .btn{margin-top:18px}}@media(max-width:540px){.wrap{width:min(100% - 28px,1170px)}.nav{min-height:67px}.nav-right .nav-link-hide{display:none}.brand{font-size:1.12rem}.brand-mark{width:34px;height:34px}.hero .brain-orbit{max-width:230px}.orbit-chip{font-size:.63rem;padding:6px}.hero h1{font-size:2.6rem}.cards{grid-template-columns:1fr}.tile{min-height:200px}.section{padding:40px 0}.section-head h2{font-size:1.9rem}.panel{padding:19px}.game-grid{gap:5px}.cell{min-height:46px}.grid-3 .cell{min-height:74px}.grid-4 .cell{min-height:64px}}