:root{--bg:#f7f8fa;--surface:#fff;--text:#14171c;--muted:#5b6470;--line:#e2e5ea;--accent:#1f5eff;--accent-ink:#fff;--code:#eef1f6;--ok:#127a3e;--warn:#9a5b00;--r:12px}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0e1116;--surface:#151a21;--text:#e7eaee;--muted:#9aa3ae;--line:#262d37;--accent:#6b97ff;--accent-ink:#0e1116;--code:#1c232c;--ok:#4cc38a;--warn:#e0a24a}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
header.top{border-bottom:1px solid var(--line);background:var(--surface)}
header.top .wrap{display:flex;align-items:center;gap:12px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:650;color:var(--text);text-decoration:none;margin-right:auto}
.brand img{width:28px;height:28px}
nav a{color:var(--muted);text-decoration:none;font-size:15px;margin-left:14px}
nav a:hover{color:var(--text)}
.lang{border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:8px;padding:4px 10px;font:inherit;font-size:14px;cursor:pointer}
.hero{padding:64px 0 40px}
.hero h1{font-size:clamp(30px,5vw,46px);line-height:1.15;letter-spacing:-.02em;margin:0 0 16px;max-width:18ch}
.hero p.lead{font-size:19px;color:var(--muted);max-width:60ch;margin:0 0 28px}
.badge{display:inline-block;font-size:13px;color:var(--warn);border:1px solid currentColor;border-radius:999px;padding:2px 10px;margin-bottom:18px}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 20px;border-radius:10px;text-decoration:none;font-weight:600;border:1px solid var(--line);color:var(--text);background:var(--surface)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
section{padding:36px 0;border-top:1px solid var(--line)}
section h2{font-size:24px;letter-spacing:-.01em;margin:0 0 18px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.card h3{font-size:16px;margin:0 0 6px}
.card p{margin:0;color:var(--muted);font-size:15px}
.flow{display:flex;align-items:stretch;gap:8px;flex-wrap:wrap}
.flow .node{flex:1 1 150px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px;text-align:center}
.flow .node b{display:block}
.flow .node small{color:var(--muted)}
.flow .arrow{align-self:center;color:var(--muted);font-size:20px}
ol.steps{padding-left:22px}
ol.steps li{margin:0 0 12px}
code,.mono{font-family:ui-monospace,"Cascadia Code",Consolas,monospace;font-size:14px}
code{background:var(--code);padding:2px 6px;border-radius:6px;word-break:break-all}
.copy{display:flex;gap:8px;align-items:center;flex-wrap:wrap;background:var(--code);border-radius:10px;padding:10px 12px;margin:8px 0}
.copy code{background:none;padding:0;flex:1 1 auto}
.copy button{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:8px;padding:4px 10px;font:inherit;font-size:14px;cursor:pointer}
.doc{padding-top:40px;padding-bottom:56px;max-width:760px}
.doc h1{font-size:32px;letter-spacing:-.02em;margin:0 0 6px}
.doc h2{font-size:20px;margin:28px 0 8px}
.doc .meta{color:var(--muted);font-size:14px;margin:0 0 24px}
.doc li{margin-bottom:6px}
details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 16px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}
footer{border-top:1px solid var(--line);padding:24px 0 40px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between}
footer a{color:var(--muted)}
html.en body [lang=ru],html:not(.en) body [lang=en]{display:none !important}
@media (max-width:640px){nav{display:none}.flow{flex-direction:column}.flow .node{flex:none}.flow .arrow{transform:rotate(90deg)}.hero{padding-top:40px}}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.m{color:var(--muted);font-size:15px}
/* --- site v2: header CTA, sections, pricing, prompts, footer --- */
.btn.sm{padding:6px 14px;font-size:14px;border-radius:8px}
header.top .btn.sm{order:2}
.hero .sub{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;color:var(--muted);font-size:14px}
.hero .sub span{white-space:nowrap}
section .intro{color:var(--muted);max-width:62ch;margin:-8px 0 20px}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr))}
.card .k{display:inline-block;font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.card ul,.plan ul{margin:10px 0 0;padding-left:20px;color:var(--muted);font-size:15px}
.card ul li,.plan ul li{margin-bottom:4px}
.card .btn{margin-top:14px}
ol.num{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;counter-reset:n}
ol.num>li{counter-increment:n;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px}
ol.num>li::before{content:counter(n);display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:14px;margin-bottom:10px}
ol.num>li h3{font-size:16px;margin:0 0 6px}
ol.num>li p{margin:0;color:var(--muted);font-size:15px}
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:16px;margin-bottom:18px}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;display:flex;flex-direction:column}
.plan.hl{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.plan h3{font-size:18px;margin:0 0 4px}
.plan .for{color:var(--muted);font-size:15px;margin:0 0 14px}
.plan .price{font-size:40px;font-weight:700;letter-spacing:-.02em;line-height:1}
.plan .price small{font-size:15px;font-weight:400;color:var(--muted);letter-spacing:0}
.plan ul{flex:1 1 auto;margin:16px 0 18px}
.plan .btn{text-align:center}
.prompt{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.prompt q{display:block;quotes:none;font-weight:600;margin:0 0 6px}
.prompt p{margin:0;color:var(--muted);font-size:15px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px;padding:0;list-style:none}
.tags a{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:3px 12px;font-size:14px;color:var(--muted);text-decoration:none;background:var(--surface)}
.tags a:hover{color:var(--text)}
.term{background:#0e1116;color:#d7dde5;border-radius:var(--r);padding:16px 18px;font-family:ui-monospace,"Cascadia Code",Consolas,monospace;font-size:13.5px;line-height:1.7;overflow-x:auto;white-space:pre-wrap;word-break:break-word;margin:0}
.term .c{color:#7d8794}
.term .a{color:#8fb4ff}
.ok-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ok);border:1px solid currentColor;border-radius:999px;padding:3px 12px;margin-bottom:18px}
.cta{text-align:center;padding:48px 0}
.cta h2{font-size:clamp(24px,4vw,32px);margin:0 0 10px}
.cta p{color:var(--muted);margin:0 auto 22px;max-width:56ch}
.cta .btns{justify-content:center}
.note{border-left:3px solid var(--warn);background:var(--surface);padding:12px 16px;border-radius:0 var(--r) var(--r) 0;margin:14px 0;font-size:15px}
.doc pre.term{margin:8px 0 16px}
footer .fcols{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:20px;width:100%}
footer .fcols b{display:block;color:var(--text);margin-bottom:6px}
footer .fcols a{display:block;text-decoration:none;margin-bottom:4px}
footer .fcols a:hover{color:var(--text)}
footer .fcols p{margin:0}
footer .legal{width:100%;margin:8px 0 0;font-size:13px}
@media (max-width:640px){header.top nav{display:flex;order:3;width:100%;flex-wrap:wrap;gap:2px 14px;padding:0 0 10px}header.top nav a{margin-left:0;font-size:14px}.plan .price{font-size:34px}}
.prompt .k{display:inline-block;font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}