:root{--bg:#060a13;--bg2:#0a1222;--card:#0d1830;--line:#1a2336;--fg:#e9eef8;--muted:#93a0b8;--accent:#9ccbff;--accent2:#2f9e91;--ok:#4cd7c2}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
header.top{position:sticky;top:0;z-index:5;background:rgba(5,8,15,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--fg);font-weight:700;letter-spacing:.16em;text-transform:uppercase;font-size:15px}
.brand:hover{text-decoration:none}
.brand img{width:30px;height:30px;border-radius:8px}
nav a{color:var(--muted);margin-left:20px;font-size:14px}
nav a:hover{color:var(--fg);text-decoration:none}
nav .lang{border:1px solid var(--line);border-radius:8px;padding:3px 9px}
@media(max-width:640px){nav a:not(.lang){display:none}}

.hero{position:relative;overflow:hidden;padding:64px 0 120px;text-align:center}
.hero:before{content:"";position:absolute;left:50%;bottom:-560px;width:max(1500px,260vw);height:640px;transform:translateX(-50%);border-radius:50%;background:radial-gradient(closest-side,rgba(61,123,255,.0) 92%,rgba(156,203,255,.5) 99.3%,rgba(61,123,255,0) 100%);pointer-events:none}
.hero .mark{width:min(220px,50vw);height:auto;display:block;margin:0 auto 18px;filter:drop-shadow(0 0 44px rgba(156,203,255,.28))}
.hero h1{font-size:clamp(34px,6vw,58px);line-height:1.08;margin:8px 0 14px;letter-spacing:-.02em}
.hero h1 span{background:linear-gradient(90deg,#fff,#d9ecff 45%,#4cd7c2);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{color:var(--muted);font-size:clamp(17px,2.3vw,20px);max-width:620px;margin:0 auto 30px}
.cta{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;align-items:center}
.store{display:inline-flex;align-items:center;gap:12px;background:#fff;color:#000;border-radius:14px;padding:10px 22px 10px 18px;min-width:210px;text-align:left;transition:transform .15s}
.store:hover{text-decoration:none;transform:translateY(-1px)}
.store svg{width:28px;height:28px;flex:none}
.store small{display:block;font-size:11px;line-height:1.1;opacity:.75}
.store b{display:block;font-size:20px;line-height:1.15;font-weight:600}
.store.soon{background:transparent;color:var(--fg);border:1px solid var(--line);cursor:default}
.store.soon svg{fill:var(--fg)}
.store.soon:hover{transform:none}
.platforms{margin-top:22px;color:var(--muted);font-size:14px}
.chip{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:3px 11px;margin:3px;font-size:13px;color:var(--muted)}
.chip.on{border-color:rgba(76,215,194,.5);color:var(--ok)}

section{padding:56px 0}
section h2{font-size:clamp(26px,3.6vw,36px);margin:0 0 10px;letter-spacing:-.01em;text-align:center}
section p.sub{color:var(--muted);text-align:center;max-width:640px;margin:0 auto 34px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:linear-gradient(180deg,var(--card),var(--bg2));border:1px solid var(--line);border-radius:18px;padding:24px}
.card .ic{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:rgba(76,215,194,.1);color:var(--ok);margin-bottom:14px}
.card .ic svg{width:22px;height:22px}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:15px}
.steps{counter-reset:s}
@media(max-width:400px){.grid{grid-template-columns:1fr}}
.steps .card{position:relative;padding-top:58px}
.steps .card:before{counter-increment:s;content:counter(s);position:absolute;top:20px;left:24px;width:28px;height:28px;border-radius:50%;background:var(--accent2);color:#fff;font-weight:700;display:grid;place-items:center;font-size:14px}
.nolog{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));max-width:1000px;margin:0 auto}
.nolog div{border:1px solid var(--line);border-radius:14px;padding:14px 16px;color:var(--muted);font-size:15px}
.nolog b{color:var(--fg);display:block;font-size:16px;margin-bottom:2px}
details{border:1px solid var(--line);border-radius:14px;padding:4px 18px;margin:0 auto 10px;max-width:820px;background:var(--card)}
summary{cursor:pointer;padding:14px 0;font-weight:600;list-style:none}
summary::-webkit-details-marker{display:none}
summary:after{content:"+";float:right;color:var(--muted);font-weight:400}
details[open] summary:after{content:"–"}
details p{color:var(--muted);margin:0 0 14px}

footer{border-top:1px solid var(--line);padding:30px 0 40px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center}
footer nav a{margin:0 18px 0 0}

/* текстовые страницы */
.doc{max-width:820px;margin:0 auto;padding:40px 22px 60px}
.doc h1{font-size:32px;line-height:1.2;margin:0 0 6px}
.doc .date{color:var(--muted);margin:0 0 24px}
.doc h2{font-size:20px;margin:30px 0 8px}
.doc li{margin:6px 0}
.doc .box{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin:18px 0}
.hero p.tag{display:inline-block;margin:0 0 18px;padding:5px 14px;border:1px solid rgba(76,215,194,.45);border-radius:999px;color:var(--ok);font-size:14px;letter-spacing:.02em}