:root{--bg:#f8f3f0;--sf:#ffffff;--sf2:#f2eae3;--tx:#2d2016;--mut:#706051;--line:#ded3c9;
--head:#372515;--headtx:#f4f6f7;--ac:#cd411d;--ac2:#25d09d;--link:#8f2d14;--act:#ffffff;--r:6px}
:root[data-theme="alt"]{--bg:#17110c;--sf:#271e16;
--sf2:#372b1f;--tx:#f2ede9;
--mut:#bcac9f;--line:#483728;
--link:#ee7f63}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--tx);font:16px/1.7 ui-serif,Georgia,"Times New Roman",serif;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-underline-offset:3px}
.iy-wrap{width:100%;max-width:1000px;margin:0 auto;padding:0 18px}
.iy-head{position:sticky;top:0;z-index:60;background:var(--head);color:var(--headtx)}
.iy-head__bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;min-height:58px;padding-top:8px;padding-bottom:8px}
.iy-logo{display:block;line-height:0;width:132px}
.iy-logo img{width:132px;height:auto}
.iy-burger{margin-left:auto;background:transparent;border:1px solid var(--ac);color:var(--headtx);border-radius:4px;
padding:8px 14px;font-size:14px;font-weight:600;line-height:1;cursor:pointer}
.iy-nav{display:none;flex:0 0 100%;width:100%;padding:4px 0 12px}
.iy-nav--open{display:block;flex:0 0 100%;width:100%}
.iy-nav ul{list-style:none;margin:0 0 10px;padding:0}
.iy-nav li a{display:block;padding:11px 4px;color:var(--headtx);text-decoration:none;border-bottom:1px solid rgba(255,255,255,.14);font-weight:600}
.iy-cta{display:inline-block;background:var(--ac);color:var(--act);font-weight:800;text-decoration:none;border-radius:14px;
padding:11px 24px;text-align:center;box-shadow:0 3px 0 rgba(0,0,0,.28)}
.iy-cta:hover{filter:brightness(1.08)}
.iy-head__cta{display:none}
.iy-nav__cta{display:block;margin-top:12px}
.iy-theme{background:transparent;border:1px solid var(--ac);color:var(--headtx);border-radius:999px;padding:7px 14px;font-size:13px;cursor:pointer}
.iy-nav__theme{margin-top:4px}
.iy-progress{height:3px;background:rgba(255,255,255,.12)}
.iy-progress i{display:block;height:100%;width:0;background:var(--ac2)}
.iy-promo{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px}
.iy-promo__lab{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--mut);font-weight:700}
.iy-promo__val{font:800 1.02rem/1 ui-monospace,Consolas,monospace;letter-spacing:.1em;background:var(--sf);color:var(--tx);
border:2px dashed var(--ac);border-radius:8px;padding:8px 12px}
.iy-promo__btn{background:var(--ac);color:var(--act);border:0;border-radius:8px;padding:9px 14px;font-weight:700;cursor:pointer}
.iy-promo__btn.iy-ok{background:var(--ac2)}
.iy-promo__hint{font-size:12.5px;color:var(--mut);flex:1 1 100%;min-width:0;max-width:100%}
.iy-main{min-width:0}
.iy-hero{border-radius:calc(var(--r) + 6px);padding:26px 20px 24px;margin-bottom:24px;position:relative;overflow:hidden}
.iy-hero h1{margin:0 0 12px;font:800 1.65rem/1.2 ui-serif,Georgia,serif;position:relative;z-index:1}
.iy-lede{margin:0;font-size:1.03rem;position:relative;z-index:1;max-width:62ch}
.iy-hero--panel{background:linear-gradient(135deg,var(--head),#51291f);color:#fff}
.iy-hero--panel .iy-lede{color:rgba(255,255,255,.88)}
.iy-hero--panel::after{content:"";position:absolute;right:-30px;bottom:-30px;width:140px;height:140px;border-radius:50%;
border:14px solid rgba(255,255,255,.14)}
.iy-hero--plain{background:transparent;padding:10px 0 20px;border-bottom:4px solid var(--ac);border-radius:0}
.iy-hero--tint{background:var(--sf2);border-left:8px solid var(--ac)}
.iy-sec{margin:0 0 22px}
.iy-sec h2{margin:0 0 14px;font:800 1.28rem/1.3 ui-serif,Georgia,serif;color:var(--tx)}
.iy-sec p{margin:0 0 14px}
.iy-fig{margin:0 0 18px;border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.iy-fig img{width:100%}
.iy-zoom{display:block;cursor:zoom-in}
.iy-tbl{overflow-x:auto;margin:6px 0 20px;border:1px solid var(--line);border-radius:var(--r);background:var(--sf)}
.iy-tbl table{border-collapse:collapse;width:100%;font-size:14.5px}
.iy-tbl caption{caption-side:top;text-align:left;font-weight:800;padding:10px 14px;color:var(--link)}
.iy-tbl th{background:var(--ac);color:var(--act);text-align:left;padding:9px 14px;font-size:13px}
.iy-tbl td{padding:10px 14px;border-top:1px solid var(--line);vertical-align:top}
.iy-tbl tbody tr:nth-child(even) td{background:var(--sf2)}
.iy-list{margin:0 0 16px;padding:0 0 0 22px}
.iy-list li{margin-bottom:6px}
.iy-list--ul,.iy-list--ol{list-style-position:outside}
.iy-faq{margin-bottom:0}
.iy-cur{font-weight:700}
.iy-intro{margin:0 0 22px}
.iy-crumbs{background:var(--sf2);border-bottom:1px solid var(--line);font-size:13.5px;color:var(--mut)}
.iy-crumbs .iy-wrap{padding-top:8px;padding-bottom:8px}
.iy-crumbs a{color:var(--link)}
.iy-crumbs span{margin-left:8px}
.iy-side__in{display:block}
.iy-promo--ribbon{justify-content:flex-start}
.iy-sec h3{margin:18px 0 10px;font:700 1.08rem/1.35 ui-serif,Georgia,serif;color:var(--tx)}
.iy-steps{list-style:none;padding:0;display:grid;gap:8px;counter-reset:iyst}
.iy-step{counter-increment:iyst;position:relative;padding:11px 14px 11px 50px;background:var(--sf);border:1px solid var(--line);
border-radius:var(--r);cursor:pointer;margin:0}
.iy-step::before{content:counter(iyst);position:absolute;left:12px;top:10px;width:28px;height:28px;border-radius:8px;border:2px solid var(--ac);
color:var(--link);text-align:center;font:800 .9rem/24px system-ui,sans-serif}
.iy-step.iy-done{background:var(--sf2);color:var(--mut);text-decoration:line-through}
.iy-step.iy-done::before{content:"✓";background:var(--ac);color:var(--act)}
.iy-ctarow{margin:2px 0 22px;text-align:center}
.iy-faq__item{background:var(--sf);border:1px solid var(--line);border-radius:var(--r);margin:0 0 10px;overflow:hidden}
.iy-faq__q{cursor:pointer;font-weight:700;padding:13px 44px 13px 16px;position:relative;list-style:none}
.iy-faq__q::-webkit-details-marker{display:none}
.iy-faq__q::after{content:"+";position:absolute;right:16px;top:8px;font-size:24px;color:var(--ac)}
.iy-faq__item[open] .iy-faq__q::after{content:"−"}
.iy-faq__a{padding:0 16px 14px;color:var(--mut)}
.iy-foot{background:var(--head);color:var(--headtx);padding:28px 0;font-size:14px;opacity:.97}
.iy-foot__in p{margin:0 0 8px}
.iy-foot__logo{width:140px;height:auto;margin-bottom:12px}
.iy-age{display:inline-block;width:32px;height:32px;line-height:28px;text-align:center;border:2px solid var(--ac);color:var(--ac);
border-radius:50%;font-weight:800;font-size:12px;margin-right:8px}
.iy-top{position:fixed;right:14px;bottom:16px;width:44px;height:44px;border-radius:50%;border:0;background:var(--ac);color:var(--act);
font-size:20px;cursor:pointer;box-shadow:0 3px 10px rgba(0,0,0,.3);z-index:40}
.iy-top.iy-top--on{display:block}
.iy-box{position:fixed;inset:0;z-index:90;background:rgba(5,5,10,.92);display:flex;align-items:center;justify-content:center;padding:16px;cursor:zoom-out}
.iy-box img{max-width:100%;max-height:100%;width:auto;height:auto;border-radius:12px}
.iy-nf{padding:46px 0;text-align:center}

.iy-main{counter-reset:iyn}
.iy-hero{border-radius:0;margin:0;padding:34px max(18px,calc((100% - 760px)/2)) 30px}
.iy-sec{margin:0;padding:34px max(18px,calc((100% - 760px)/2)) 22px}
.iy-sec:nth-of-type(odd){background:var(--sf)}
.iy-sec:nth-of-type(even){background:var(--bg)}
.iy-sec h2{counter-increment:iyn}
.iy-sec h2::before{content:"№ " counter(iyn);display:block;font:700 .75rem/1.4 system-ui,sans-serif;letter-spacing:.14em;color:var(--ac);margin-bottom:4px}
.iy-ctarow{padding:18px 18px;margin:0;background:var(--sf2)}
.iy-barpromo{position:fixed;left:0;right:0;bottom:0;z-index:45;background:var(--head);color:var(--headtx);padding:8px 14px;border-top:2px solid var(--ac)}
.iy-promo--bar{justify-content:center}
.iy-promo--bar .iy-promo__lab{color:rgba(255,255,255,.75)}
.iy-promo--bar .iy-promo__hint{display:none}
.iy-foot{padding-bottom:84px}
.iy-top{bottom:78px}
@media (min-width:900px){
 .iy-hero{padding-top:52px;padding-bottom:44px}
 .iy-hero h1{font-size:2.5rem}
 .iy-sec{padding-top:44px;padding-bottom:30px}
}
@media (min-width:900px){
 .iy-burger{display:none}
 .iy-head__bar{flex-wrap:nowrap}
 .iy-nav,.iy-nav--open{display:block;flex:1 1 auto;width:auto;margin-left:auto;padding:0}
 .iy-nav ul{display:flex;gap:4px;justify-content:flex-end;margin:0;align-items:center}
 .iy-nav li a{border:0;padding:8px 12px;border-radius:999px;font-size:14px}
 .iy-nav li a:hover{background:rgba(255,255,255,.1)}
 .iy-nav__cta{display:none}
 .iy-nav__theme{margin:0 0 0 8px}
 .iy-head__cta{display:inline-block;padding:9px 22px}
 .iy-nav{display:flex;align-items:center;justify-content:flex-end}
 .iy-hero{padding-left:36px;padding-right:36px}
}
.iy-hero--plain .iy-lede{color:var(--mut)}
.iy-hero--tint .iy-lede{color:var(--tx)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}