header.nav{position:sticky;top:0;z-index:40;background:rgba(243,242,238,.78);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid transparent;transition:border-color .4s,background .4s}
header.nav.scrolled{border-color:var(--line);background:rgba(243,242,238,.9)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center}
.brand img{display:block;width:auto;height:50px;max-width:180px;object-fit:contain}
.nav-links{display:flex;gap:30px}
.nav-links a{font-size:14.5px;color:var(--ink-2);font-weight:400;transition:color .25s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-cta .btn{position:relative;overflow:hidden}
.btn-ico{display:inline-flex;align-items:center;justify-content:center}
.btn-ico svg{display:block}
.btn-tg .btn-ico{width:15px;height:15px;transition:transform .35s var(--ease);color:var(--ink-2)}
.btn-tg:hover .btn-ico{transform:translateX(-1px) translateY(-1px) rotate(-8deg);color:#229ED9}
.btn-app{padding:.42em .46em .42em 1.05em;gap:.65em}
.btn-app .arr{width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,.18);display:inline-flex;align-items:center;justify-content:center;transition:background .35s var(--ease),transform .35s var(--ease)}
.btn-app .arr svg{width:13px;height:13px}
.btn-app:hover .arr{background:rgba(255,255,255,.32);transform:translateX(2px)}
.btn-app::before{content:'';position:absolute;top:0;left:-65%;width:45%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-18deg);transition:left .6s var(--ease);pointer-events:none}
.btn-app:hover::before{left:130%}
.lang-toggle{height:38px;display:inline-flex;align-items:center;gap:4px;padding:3px;border:1px solid var(--line-2);border-radius:999px;background:var(--card-2);color:var(--ink-3);font-family:var(--mono);font-size:11px;letter-spacing:.08em;cursor:pointer;transition:border-color .25s var(--ease),background .25s var(--ease)}
.lang-toggle:hover{border-color:var(--ink-4)}
.lang-toggle span,.lang-toggle a{min-width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;transition:background .25s var(--ease),color .25s var(--ease)}
.lang-toggle a{color:inherit;text-decoration:none}
.lang-toggle[data-current="ru"] [data-lang-option="ru"],.lang-toggle[data-current="en"] [data-lang-option="en"]{background:var(--ink);color:#fff}
.article-hero{padding:84px 0 58px;border-bottom:1px solid var(--line);background:var(--paper)}
.article-grid{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(320px,.66fr);gap:54px;align-items:center}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:9px;align-items:center;margin-bottom:28px}
.breadcrumbs a,.breadcrumbs span{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3)}
.breadcrumbs a:hover{color:var(--red)}
.hero-kicker{display:flex;align-items:center;gap:10px;margin-bottom:18px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--red)}
h1{margin:0;max-width:12ch;font-weight:200;font-size:clamp(44px,7.4vw,86px);line-height:.98;letter-spacing:-.035em}
.hero-lead{max-width:650px;margin:26px 0 0;color:var(--ink-2);font-size:clamp(18px,2.2vw,22px);font-weight:300;line-height:1.55}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-card,.loqer-demo{background:#2F2E2A;color:#fff;border-radius:var(--radius);padding:28px;box-shadow:0 2px 8px rgba(40,38,32,.08),0 34px 72px -44px rgba(40,38,32,.36);overflow:hidden}
.hero-card img,.loqer-demo img{border-radius:14px;border:1px solid rgba(255,255,255,.14);margin-bottom:22px}
.hero-card p,.loqer-demo p{margin:0;color:#dedbd2;font-weight:300;line-height:1.6}
.article-wrap{width:min(1040px,92vw);margin:0 auto}
.content-band{padding:72px 0}
.content-grid{display:grid;grid-template-columns:minmax(0,680px) minmax(250px,1fr);gap:58px;align-items:start}
article{font-size:18px;color:var(--ink-2);font-weight:300;line-height:1.75}
article h2{margin:0 0 20px;color:var(--ink);font-weight:300;font-size:clamp(30px,4.4vw,48px);line-height:1.08;letter-spacing:-.03em}
article h3{margin:44px 0 12px;color:var(--ink);font-weight:400;font-size:25px;line-height:1.22;letter-spacing:-.02em}
article p{margin:0 0 22px}
article strong{color:var(--ink);font-weight:500}
article ul{margin:0 0 26px;padding:0;list-style:none;display:flex;flex-direction:column;gap:12px}
article li{position:relative;padding-left:24px}
article li::before{content:'';position:absolute;left:0;top:.78em;width:7px;height:7px;border-radius:50%;background:var(--red)}
.answer-box{background:var(--card-2);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-card);margin:0 0 34px}
.answer-box .label{font-family:var(--mono);font-size:11px;letter-spacing:.13em;text-transform:uppercase;color:var(--red);margin-bottom:10px}
.answer-box p{color:var(--ink);font-size:20px;line-height:1.5;margin:0}
.formula{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center;margin:30px 0 36px}
.formula .box{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.formula .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-3)}
.formula .v{display:block;margin-top:8px;font-family:var(--mono);font-size:24px;color:var(--ink)}
.formula .sign{font-family:var(--mono);color:var(--red)}
.demo-head{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:20px}
.demo-head b{font-weight:500;font-size:18px}
.demo-head span{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#aaa69d}
.loqer-demo{margin:38px 0}
.practice{margin:42px 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--card-2);box-shadow:var(--shadow-card);overflow:hidden}
.practice-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding:26px 26px 20px;border-bottom:1px solid var(--line)}
.practice-head h2{margin:0;font-size:clamp(28px,4vw,42px)}
.practice-head span{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--red);white-space:nowrap}
.practice-step{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:22px 26px;border-bottom:1px solid var(--line)}
.practice-step:last-child{border-bottom:0}
.practice-step .num{width:38px;height:38px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:13px}
.practice-step h3{margin:0 0 8px;font-size:21px}
.practice-step p{margin:0;font-size:16px;line-height:1.62;color:var(--ink-2)}
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:16px}
.side-card{background:var(--card-2);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-card)}
.side-card h4{margin:0 0 14px;font-size:16px;font-weight:500}
.side-card a:not(.btn){display:block;color:var(--ink-2);font-size:14.5px;padding:7px 0}
.side-card a:not(.btn):hover{color:var(--red)}
.side-card .btn{width:100%;justify-content:center;text-align:center}
.side-card p{margin:0 0 16px;color:var(--ink-2);font-size:14.5px;line-height:1.55}
.faq{border-top:1px solid var(--line);margin-top:50px}
.faq-item{border-bottom:1px solid var(--line);padding:24px 0}
.faq-item h3{margin:0 0 8px;font-size:22px}
.faq-item p{margin:0}
.cta-strip{background:var(--ink);color:#fff;padding:68px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:34px}
.cta-strip h2{margin:0;font-size:clamp(34px,5vw,60px);font-weight:200;line-height:1.04;letter-spacing:-.03em;max-width:13ch}
.cta-strip p{margin:14px 0 0;color:#c9c5bc;font-weight:300;max-width:46ch}
footer{padding:72px 0 48px}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:30px;padding-bottom:48px;border-bottom:1px solid var(--line)}
.foot-top>div:first-child{max-width:34ch}
.foot-top img{display:block;width:100%;height:auto}
.foot-top p{font-weight:300;font-size:14px;color:var(--ink-2);max-width:none;margin:18px 0 0;line-height:1.6}
.foot-col h5{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:0 0 16px;font-weight:500}
.foot-col a{display:block;font-size:14.5px;font-weight:300;color:var(--ink-2);padding:5px 0;transition:color .25s}
.foot-col a:hover{color:var(--red)}
.foot-bot{display:flex;align-items:center;justify-content:space-between;padding-top:24px;flex-wrap:wrap;gap:12px}
.foot-bot span{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--ink-4)}
@media(max-width:900px){.article-grid,.content-grid{grid-template-columns:1fr}.side{position:static}h1{max-width:13ch}}
@media(max-width:860px){.nav-links{display:none}.nav-cta .btn-ghost{display:none}}
@media(max-width:720px){.foot-top{grid-template-columns:1fr;gap:34px}}
@media(max-width:640px){.formula{grid-template-columns:1fr}.formula .sign{display:none}.practice-head{display:block}.practice-head span{display:block;margin-top:10px}.practice-step{grid-template-columns:1fr;gap:10px}.cta-inner{flex-direction:column;align-items:flex-start}}
@media(max-width:560px){.lang-toggle{height:34px}.lang-toggle span,.lang-toggle a{min-width:27px;height:26px}}