/* Навигатор ИП — тема «справочник/картотека». Префикс классов: nav- */
@font-face{font-family:"Source Sans 3";src:url(/assets/fonts/sourcesans3-cyr.woff2) format("woff2");font-weight:300 800;font-style:normal;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Source Sans 3";src:url(/assets/fonts/sourcesans3-lat.woff2) format("woff2");font-weight:300 800;font-style:normal;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Source Code Pro";src:url(/assets/fonts/sourcecodepro-cyr.woff2) format("woff2");font-weight:400 700;font-style:normal;font-display:swap;unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:"Source Code Pro";src:url(/assets/fonts/sourcecodepro-lat.woff2) format("woff2");font-weight:400 700;font-style:normal;font-display:swap;unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --nav-ink:#0f172a;--nav-slate:#334155;--nav-muted:#5b6b80;
  --nav-line:#e2e8f0;--nav-line2:#cbd5e1;--nav-side:#f6f8fb;
  --nav-link:#0369a1;--nav-sky:#0284c7;--nav-skysoft:#e0f2fe;--nav-skypale:#f0f9ff;
  --nav-sans:"Source Sans 3",-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --nav-mono:"Source Code Pro",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --nav-bar:60px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--nav-bar) + 16px)}
body.nav-body{margin:0;background:#ffffff;color:var(--nav-ink);font:400 16px/1.6 var(--nav-sans);overflow-x:hidden}
body.nav-lock{overflow:hidden}
img,svg{max-width:100%}
a{color:var(--nav-link);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--nav-ink)}
:focus-visible{outline:3px solid var(--nav-sky);outline-offset:2px;border-radius:3px}
.nav-skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--nav-ink);color:#fff;padding:8px 14px;border-radius:4px}
.nav-skip:focus{left:12px;color:#fff}

/* моно-бейдж кода */
.nav-kbd{font:600 .86em/1.2 var(--nav-mono);color:var(--nav-ink);background:#f1f5f9;border:1px solid var(--nav-line2);border-radius:4px;padding:.12em .42em;white-space:nowrap;letter-spacing:-.01em}
.nav-kbd--xl{font-size:1.25rem;padding:.2em .55em;background:var(--nav-ink);color:#fff;border-color:var(--nav-ink)}

/* ── шапка ── */
.nav-bar{position:sticky;top:0;z-index:40;height:var(--nav-bar);background:rgba(255,255,255,.96);border-bottom:1px solid var(--nav-line);backdrop-filter:saturate(1.4) blur(6px)}
.nav-bar-in{max-width:1440px;margin:0 auto;height:100%;display:flex;align-items:center;gap:20px;padding:0 24px}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--nav-ink);flex-shrink:0}
.nav-brand-mark{flex-shrink:0}
.nav-brand-txt{display:flex;flex-direction:column;line-height:1.15}
.nav-brand-name{font-weight:700;font-size:18px;letter-spacing:-.01em}
.nav-brand-sub{font:500 11.5px/1.3 var(--nav-mono);color:var(--nav-muted);letter-spacing:.01em}
.nav-topmenu{display:flex;gap:4px;margin-left:auto}
.nav-topmenu a{color:var(--nav-slate);text-decoration:none;font-weight:600;font-size:15px;padding:7px 12px;border-radius:6px}
.nav-topmenu a:hover{background:var(--nav-skypale);color:var(--nav-link)}
.nav-findbtn{display:inline-flex;align-items:center;gap:7px;color:var(--nav-slate);text-decoration:none;font-weight:600;font-size:15px;border:1px solid var(--nav-line2);border-radius:6px;padding:6px 12px;background:#fff}
.nav-findbtn:hover{border-color:var(--nav-sky);color:var(--nav-link)}
.nav-burger{display:none;align-items:center;gap:6px;font:600 15px var(--nav-sans);color:var(--nav-ink);background:#fff;border:1px solid var(--nav-line2);border-radius:6px;padding:6px 10px;cursor:pointer}

/* ── каркас ── */
.nav-frame{max-width:1440px;margin:0 auto;display:grid;grid-template-columns:272px minmax(0,1fr);align-items:start}
.nav-side{position:sticky;top:var(--nav-bar);height:calc(100vh - var(--nav-bar));overflow-y:auto;background:var(--nav-side);border-right:1px solid var(--nav-line);scrollbar-width:thin}
.nav-side-in{padding:22px 16px 40px 24px}
.nav-side-home{display:block;font-weight:700;font-size:15px;color:var(--nav-ink);text-decoration:none;padding:6px 10px;border-radius:5px;margin-bottom:10px}
.nav-side-home:hover,.nav-side-home.is-here{background:#fff;box-shadow:inset 3px 0 0 var(--nav-sky)}
.nav-side-grp{margin-bottom:18px}
.nav-side-h{display:flex;justify-content:space-between;align-items:baseline;margin:0 0 4px;padding:0 10px;font:700 12px/1.4 var(--nav-sans);text-transform:uppercase;letter-spacing:.08em;color:var(--nav-muted)}
.nav-side-h a{color:inherit;text-decoration:none}
.nav-side-h a:hover{color:var(--nav-link)}
.nav-side-h span{font:500 11px var(--nav-mono);letter-spacing:0;color:#8191a6}
.nav-side-list{list-style:none;margin:0;padding:0}
.nav-side-list a{display:flex;align-items:baseline;gap:8px;padding:5px 10px;font-size:14.5px;line-height:1.35;color:var(--nav-slate);text-decoration:none;border-radius:5px}
.nav-side-list a:hover{background:#fff;color:var(--nav-link)}
.nav-side-list a.is-here{background:#fff;color:var(--nav-ink);font-weight:600;box-shadow:inset 3px 0 0 var(--nav-sky)}
.nav-side-list .nav-kbd{font-size:12px;padding:1px 5px;background:#fff;flex-shrink:0}
.nav-side-list a.is-here .nav-kbd{background:var(--nav-skysoft);border-color:#7dd3fc}
.nav-side-svc{border-top:1px solid var(--nav-line);padding-top:14px}

.nav-main{min-width:0;padding:28px 40px 64px}

/* ── статья ── */
.nav-doc{display:grid;grid-template-columns:minmax(0,760px) 214px;gap:48px;justify-content:start}
.nav-doc--solo{grid-template-columns:minmax(0,760px)}
.nav-crumbs ol{list-style:none;margin:0 0 18px;padding:0;display:flex;flex-wrap:wrap;gap:4px 0;font-size:14px;color:var(--nav-muted)}
.nav-crumbs li{display:flex;align-items:center}
.nav-crumbs li+li::before{content:"";width:6px;height:6px;border-right:1.5px solid #94a3b8;border-top:1.5px solid #94a3b8;transform:rotate(45deg);margin:0 10px 0 6px}
.nav-crumbs a{color:var(--nav-slate);text-decoration:none}
.nav-crumbs a:hover{color:var(--nav-link);text-decoration:underline}
.nav-crumbs [aria-current]{color:var(--nav-muted)}
.nav-art-head{margin-bottom:22px}
.nav-art-code{display:flex;align-items:center;gap:12px;margin:0 0 12px;font:500 13px var(--nav-mono);color:var(--nav-muted);text-transform:lowercase}
.nav-term-tag{font:600 12px/1 var(--nav-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--nav-link);background:var(--nav-skysoft);border-radius:4px;padding:6px 8px}
.nav-art h1{font-size:clamp(28px,3.2vw,38px);line-height:1.15;letter-spacing:-.018em;font-weight:700;margin:0 0 14px;text-wrap:balance}
.nav-art-meta{display:flex;flex-wrap:wrap;gap:6px 18px;margin:0;font-size:14px;color:var(--nav-muted)}
.nav-art-meta span{display:inline-flex;align-items:center;gap:6px}
.nav-art-meta span+span::before{content:"";width:4px;height:4px;border-radius:50%;background:#94a3b8;margin-right:12px}
.nav-art-meta a{color:var(--nav-muted)}

.nav-def{position:relative;margin:0 0 28px;padding:18px 22px 18px 24px;background:var(--nav-skypale);border:1px solid #bae6fd;border-left:4px solid var(--nav-sky);border-radius:0 8px 8px 0}
.nav-def-lbl{margin:0 0 6px;font:700 12px/1.3 var(--nav-mono);text-transform:uppercase;letter-spacing:.1em;color:var(--nav-link)}
.nav-def-txt{margin:0;font-size:17.5px;line-height:1.6;color:var(--nav-ink)}
.nav-def--term .nav-def-txt{font-size:18.5px}
.nav-def--term .nav-def-txt::first-line{font-weight:600}

.nav-toc-mini{display:none;margin:0 0 28px;border:1px solid var(--nav-line);border-radius:8px;padding:14px 18px;background:#fff}
.nav-toc-mini-h{margin:0 0 6px;font:700 12px var(--nav-sans);text-transform:uppercase;letter-spacing:.08em;color:var(--nav-muted)}
.nav-toc-mini ol{margin:0;padding-left:22px;columns:2;column-gap:28px;font-size:15px}
.nav-toc-mini li{break-inside:avoid;padding:2px 0}
.nav-toc-mini li::marker{font:500 13px var(--nav-mono);color:#8191a6}

.nav-toc{position:sticky;top:calc(var(--nav-bar) + 28px);max-height:calc(100vh - var(--nav-bar) - 48px);overflow-y:auto}
.nav-toc-in{border-left:1px solid var(--nav-line);padding-left:16px}
.nav-toc-h{margin:0 0 10px;font:700 12px var(--nav-sans);text-transform:uppercase;letter-spacing:.08em;color:var(--nav-muted)}
.nav-toc ol{list-style:none;margin:0;padding:0}
.nav-toc li a{display:block;margin-left:-17px;padding:5px 0 5px 16px;border-left:2px solid transparent;font-size:14px;line-height:1.35;color:var(--nav-slate);text-decoration:none}
.nav-toc li a:hover{color:var(--nav-link)}
.nav-toc li a.is-on{border-left-color:var(--nav-sky);color:var(--nav-ink);font-weight:600}
.nav-toc-top{display:inline-block;margin-top:14px;font-size:13px;color:var(--nav-muted);text-decoration:none}

/* ── текст статьи (Markdown) ── */
.nav-prose{font-size:17px;line-height:1.7;color:#1e293b}
.nav-prose>:first-child{margin-top:0}
.nav-prose p{margin:0 0 1.05em}
.nav-prose h2{font-size:25px;line-height:1.25;letter-spacing:-.012em;font-weight:700;color:var(--nav-ink);margin:2.1em 0 .7em;padding-top:.9em;border-top:1px solid var(--nav-line)}
.nav-prose h3{font-size:19.5px;line-height:1.3;font-weight:700;color:var(--nav-ink);margin:1.6em 0 .5em}
.nav-prose strong{font-weight:700;color:var(--nav-ink)}
.nav-prose ul,.nav-prose ol{margin:0 0 1.15em;padding-left:1.45em}
.nav-prose li{margin:.3em 0}
.nav-prose li::marker{color:var(--nav-sky)}
.nav-prose ol>li::marker{font:600 .9em var(--nav-mono);color:var(--nav-slate)}
.nav-prose code{font:500 .86em var(--nav-mono);background:#f1f5f9;border:1px solid var(--nav-line);border-radius:4px;padding:.1em .38em}
.nav-prose hr{border:0;border-top:1px solid var(--nav-line);margin:2em 0}
.nav-prose blockquote{margin:1.4em 0;padding:16px 20px 16px 22px;background:#f8fafc;border:1px solid var(--nav-line);border-left:3px solid var(--nav-slate);border-radius:0 6px 6px 0;font-size:16px;line-height:1.65;color:var(--nav-slate)}
.nav-prose blockquote p:last-child{margin-bottom:0}
.nav-prose dl{margin:0 0 1.2em}
.nav-prose dt{font-weight:700;color:var(--nav-ink)}
.nav-prose dd{margin:0 0 .8em 1.2em}
.nav-prose .admonition{margin:1.5em 0;padding:14px 18px 14px 50px;border-radius:8px;border:1px solid var(--nav-line);background:#f8fafc;position:relative;font-size:16px;line-height:1.6}
.nav-prose .admonition::before{content:"i";position:absolute;left:16px;top:15px;width:22px;height:22px;border-radius:50%;background:var(--nav-slate);color:#fff;font:700 13px/22px var(--nav-mono);text-align:center}
.nav-prose .admonition p{margin:0 0 .5em}
.nav-prose .admonition p:last-child{margin:0}
.nav-prose .admonition-title{font:700 12.5px/1.4 var(--nav-sans)!important;text-transform:uppercase;letter-spacing:.07em;color:var(--nav-slate);margin-bottom:4px!important}
.nav-prose .admonition.tip{background:#f0fdf9;border-color:#a7f3d0}
.nav-prose .admonition.tip::before{content:"✓";background:#047857}
.nav-prose .admonition.tip .admonition-title{color:#065f46}
.nav-prose .admonition.warning{background:#fffbeb;border-color:#fcd34d}
.nav-prose .admonition.warning::before{content:"!";background:#b45309}
.nav-prose .admonition.warning .admonition-title{color:#92400e}
.nav-prose .admonition.note{background:var(--nav-skypale);border-color:#bae6fd}
.nav-prose .admonition.note::before{background:var(--nav-link)}
.nav-prose .admonition.note .admonition-title{color:var(--nav-link)}

/* таблицы */
.nav-tbl{margin:1.3em 0 1.6em;overflow-x:auto;border:1px solid var(--nav-line2);border-radius:8px;background:#fff;-webkit-overflow-scrolling:touch}
.nav-tbl table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.5}
.nav-tbl th{background:#f1f5f9;color:var(--nav-slate);font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.04em;text-align:left;padding:10px 14px;border-bottom:1px solid var(--nav-line2);white-space:nowrap}
.nav-tbl td{padding:10px 14px;border-bottom:1px solid var(--nav-line);vertical-align:top;min-width:110px}
.nav-tbl tr:last-child td{border-bottom:0}
.nav-tbl tbody tr:nth-child(even) td{background:#fafbfd}
.nav-tbl td:first-child{font-weight:600;color:var(--nav-ink)}
.nav-tbl .nav-kbd{font-size:13.5px}

/* инструмент (если появится) */
.nav-tool{margin:0 0 30px;padding:22px;border:1px solid var(--nav-line2);border-radius:10px;background:var(--nav-side)}
.nav-tool .row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:12px}
.nav-tool label{display:flex;flex-direction:column;gap:4px;font-weight:600;font-size:14px;color:var(--nav-slate);flex:1 1 200px}
.nav-tool input,.nav-tool select{font:500 16px var(--nav-sans);padding:9px 11px;border:1px solid var(--nav-line2);border-radius:6px;background:#fff;color:var(--nav-ink)}
.nav-tool input:focus,.nav-tool select:focus{border-color:var(--nav-sky);outline:2px solid var(--nav-skysoft)}
.nav-tool button{font:600 15px var(--nav-sans);padding:9px 16px;border-radius:6px;border:0;background:var(--nav-ink);color:#fff;cursor:pointer}
.nav-tool .res{margin-top:14px;padding:14px 16px;background:#fff;border:1px solid var(--nav-line);border-radius:8px}
.nav-tool .big{font:700 28px/1.2 var(--nav-mono);color:var(--nav-ink)}
.nav-tool table{width:100%;border-collapse:collapse;font-size:14.5px}
.nav-tool td,.nav-tool th{padding:6px 8px;border-bottom:1px solid var(--nav-line);text-align:left}

/* ── блоки после текста ── */
.nav-sec-h{font-size:22px;line-height:1.25;font-weight:700;letter-spacing:-.01em;margin:0 0 14px}
.nav-where,.nav-qa,.nav-src,.nav-see{margin-top:44px;padding-top:26px;border-top:1px solid var(--nav-line)}
.nav-where-note{margin:-6px 0 14px;font-size:14.5px;color:var(--nav-muted)}
.nav-offer{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 20px;border:1px solid var(--nav-line2);border-radius:10px;background:#fff;margin:14px 0}
.nav-prose .nav-offer{margin:1.5em 0}
.nav-offer-body{min-width:0}
.nav-offer-body p{margin:0}
.nav-offer-bank{font:600 12px var(--nav-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--nav-muted)}
.nav-offer-t{font-weight:700;font-size:18px;line-height:1.3;color:var(--nav-ink);margin:2px 0!important}
.nav-offer-p{font-size:15px;color:var(--nav-slate)}
.nav-offer-ad{margin-top:8px!important;font-size:12.5px;line-height:1.4;color:#475569}
.nav-offer-ad a{color:#475569;text-decoration:none}
.nav-offer-ad a:hover{text-decoration:underline}
.nav-offer-go{flex-shrink:0;display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:7px;background:var(--nav-link);color:#fff;font:600 15px var(--nav-sans);text-decoration:none}
.nav-offer-go:hover{background:var(--nav-ink);color:#fff}
.nav-admark{display:inline-block;margin-left:4px;padding:0 5px;font:600 11px/17px var(--nav-mono);color:#475569;background:#f1f5f9;border:1px solid var(--nav-line2);border-radius:3px;text-decoration:none;vertical-align:2px}
.nav-admark:hover{color:var(--nav-ink);border-color:#94a3b8}

.nav-faq{margin:0;border:1px solid var(--nav-line);border-radius:10px;overflow:hidden}
.nav-faq>div{padding:16px 20px;border-bottom:1px solid var(--nav-line)}
.nav-faq>div:last-child{border-bottom:0}
.nav-faq>div:nth-child(odd){background:#fafbfd}
.nav-faq dt{font-weight:700;font-size:17px;line-height:1.4;color:var(--nav-ink);margin-bottom:6px;display:flex;gap:10px}
.nav-faq dt::before{content:"В";flex-shrink:0;font:700 12px/22px var(--nav-mono);width:22px;height:22px;text-align:center;border-radius:4px;background:var(--nav-ink);color:#fff;margin-top:1px}
.nav-faq dd{margin:0 0 0 32px;font-size:16px;line-height:1.65;color:#334155}

.nav-src ol{margin:0;padding:0;list-style:none;counter-reset:src}
.nav-src li{counter-increment:src;display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:4px;padding:8px 0;border-bottom:1px dashed var(--nav-line);font-size:15px;line-height:1.45}
.nav-src li::before{content:"[" counter(src) "]";grid-row:span 2;font:600 13px/1.6 var(--nav-mono);color:var(--nav-muted)}
.nav-src li a{overflow-wrap:anywhere}
.nav-src-d{font:500 12.5px var(--nav-mono);color:#8191a6}

.nav-pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:44px}
.nav-pager a{display:flex;flex-direction:column;gap:4px;padding:14px 18px;border:1px solid var(--nav-line2);border-radius:10px;text-decoration:none;color:var(--nav-ink)}
.nav-pager a:hover{border-color:var(--nav-sky);background:var(--nav-skypale)}
.nav-pager span{font-size:13px;color:var(--nav-muted)}
.nav-pager b{font-weight:600;font-size:16px;line-height:1.35}
.nav-pager-next{text-align:right;grid-column:2;align-items:flex-end}

.nav-see ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 28px}
.nav-see li{padding:12px 0;border-bottom:1px solid var(--nav-line)}
.nav-see li a{display:flex;align-items:baseline;gap:8px;font-weight:600;font-size:16px;line-height:1.35;text-decoration:none;color:var(--nav-ink)}
.nav-see li a:hover .nav-see-t{color:var(--nav-link);text-decoration:underline}
.nav-see .nav-kbd{font-size:12.5px}
.nav-see-d{display:block;margin-top:4px;font-size:14px;line-height:1.45;color:var(--nav-muted)}

/* ── главная ── */
.nav-frame--home .nav-main{padding-top:36px}
.nav-frame--home .nav-main>section{max-width:1000px}
.nav-hero{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:36px;align-items:center;margin-bottom:26px}
.nav-eyebrow{margin:0 0 12px;font:500 13px var(--nav-mono);color:var(--nav-muted)}
.nav-hero h1{margin:0 0 14px;font-size:clamp(30px,3.6vw,44px);line-height:1.1;letter-spacing:-.022em;font-weight:700;text-wrap:balance}
.nav-hero-lead{margin:0;font-size:18px;line-height:1.6;color:var(--nav-slate);max-width:62ch}
.nav-hero-art{width:100%;height:auto}

.nav-find{margin:0 0 48px;padding:22px 24px 20px;background:var(--nav-ink);border-radius:12px;color:#e2e8f0}
.nav-find-lbl{display:block;margin-bottom:10px;font-weight:600;font-size:15px;color:#cbd5e1}
.nav-find-box{display:flex;align-items:center;gap:10px;background:#fff;border-radius:8px;padding:0 14px;color:var(--nav-muted);border:2px solid transparent}
.nav-find-box:focus-within{border-color:#7dd3fc}
.nav-find-box input{flex:1;min-width:0;border:0;outline:0;font:500 18px var(--nav-sans);padding:13px 0;color:var(--nav-ink);background:transparent}
.nav-find-box input::placeholder{color:#8191a6}
.nav-find-count{font:500 13px var(--nav-mono);color:var(--nav-muted);white-space:nowrap}
.nav-find-try{display:flex;flex-wrap:wrap;align-items:center;gap:6px 8px;margin:12px 0 0;font-size:14px;color:#94a3b8}
.nav-find-try button{font:600 13px var(--nav-mono);color:#e0f2fe;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:5px;padding:4px 9px;cursor:pointer}
.nav-find-try button:hover{background:rgba(125,211,252,.2);border-color:#7dd3fc}
.nav-hits{list-style:none;margin:14px 0 0;padding:6px;background:#fff;border-radius:8px;max-height:420px;overflow-y:auto}
.nav-hits li a{display:flex;align-items:baseline;gap:10px;padding:9px 10px;border-radius:5px;text-decoration:none;color:var(--nav-ink)}
.nav-hits li a:hover,.nav-hits li a:focus-visible{background:var(--nav-skypale)}
.nav-hit-t{flex:1;min-width:0;font-size:16px;line-height:1.35}
.nav-hit-c{font:500 12px var(--nav-mono);color:var(--nav-muted);white-space:nowrap}
.nav-empty{display:flex;align-items:center;gap:18px;margin-top:14px;padding:16px;background:#fff;border-radius:8px;color:var(--nav-slate);font-size:15px}
.nav-empty[hidden],.nav-hits[hidden]{display:none}
.nav-empty p{margin:0}
.nav-empty img{flex-shrink:0;width:96px}

.nav-blk{margin:0 0 52px;scroll-margin-top:calc(var(--nav-bar) + 16px)}
.nav-blk-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px;padding-bottom:14px;border-bottom:2px solid var(--nav-ink)}
.nav-blk-head img{flex-shrink:0;margin-top:2px}
.nav-blk-head h2{margin:0;font-size:26px;line-height:1.2;letter-spacing:-.014em}
.nav-blk-head p{margin:4px 0 0;font-size:15.5px;color:var(--nav-muted)}

.nav-codes{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--nav-line2);border-left:1px solid var(--nav-line2)}
.nav-codes li{border-right:1px solid var(--nav-line2);border-bottom:1px solid var(--nav-line2)}
.nav-codes a{display:flex;flex-direction:column;gap:6px;height:100%;padding:18px 18px 16px;text-decoration:none;color:var(--nav-ink);transition:background .15s}
.nav-codes a:hover{background:var(--nav-skypale)}
.nav-code-n{font:600 34px/1 var(--nav-mono);letter-spacing:-.03em;color:var(--nav-ink)}
.nav-code-n small{font-size:.6em;color:var(--nav-sky)}
.nav-codes a:hover .nav-code-n{color:var(--nav-link)}
.nav-code-t{font-size:15px;line-height:1.35;color:var(--nav-slate)}
.nav-blk-rules{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;margin:14px 0 0;font-size:15px}
.nav-blk-rules span{font-weight:600;color:var(--nav-muted)}
.nav-blk-rules a{padding:4px 10px;border:1px solid var(--nav-line2);border-radius:20px;text-decoration:none;font-weight:600}
.nav-blk-rules a:hover{border-color:var(--nav-sky);background:var(--nav-skypale)}

.nav-docs{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.nav-docs a{position:relative;display:flex;flex-direction:column;gap:4px;height:100%;padding:16px 18px 18px;border:1px solid var(--nav-line2);border-radius:4px 14px 4px 4px;background:linear-gradient(225deg,var(--nav-line) 0 12px,#fff 12px);text-decoration:none;color:var(--nav-ink)}
.nav-docs a:hover{border-color:var(--nav-sky);box-shadow:0 4px 14px rgba(15,23,42,.07)}
.nav-doc-n{font:600 15px var(--nav-mono);color:var(--nav-link);letter-spacing:.02em}
.nav-doc-t{font-weight:700;font-size:17px;line-height:1.3}
.nav-doc-d{font-size:14px;line-height:1.45;color:var(--nav-muted)}

.nav-abc{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:18px}
.nav-abc a,.nav-abc span{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:5px;font:600 16px var(--nav-mono)}
.nav-abc a{background:var(--nav-skysoft);color:var(--nav-link);text-decoration:none}
.nav-abc a:hover{background:var(--nav-link);color:#fff}
.nav-abc span{color:#b8c3d1;background:#f8fafc}
.nav-index{columns:4 200px;column-gap:28px}
.nav-index-g{break-inside:avoid;display:grid;grid-template-columns:34px minmax(0,1fr);margin-bottom:16px;scroll-margin-top:calc(var(--nav-bar) + 16px)}
.nav-index-L{margin:0;font:700 22px/1.2 var(--nav-mono);color:var(--nav-sky)}
.nav-index ul{list-style:none;margin:0;padding:2px 0 0;border-left:1px solid var(--nav-line);padding-left:12px}
.nav-index li{padding:2px 0;font-size:15.5px;line-height:1.35}
.nav-index li a{font-weight:600;text-decoration:none}
.nav-index li a:hover{text-decoration:underline}
.nav-index-in{margin-left:6px;font-size:12px;color:#8191a6}

.nav-refs{list-style:none;margin:0;padding:0;counter-reset:ref}
.nav-refs li{counter-increment:ref;border-bottom:1px solid var(--nav-line)}
.nav-refs a{display:grid;grid-template-columns:44px minmax(0,1fr) auto;align-items:baseline;gap:6px 14px;padding:14px 4px;text-decoration:none;color:var(--nav-ink)}
.nav-refs a::before{content:counter(ref,decimal-leading-zero);font:600 15px var(--nav-mono);color:var(--nav-sky)}
.nav-refs a:hover .nav-ref-t{color:var(--nav-link);text-decoration:underline}
.nav-ref-t{font-weight:600;font-size:17px;line-height:1.35}
.nav-ref-m{font:500 12.5px var(--nav-mono);color:var(--nav-muted);white-space:nowrap}

.nav-blk--prose{max-width:760px!important}
.nav-blk--prose .nav-prose h2:first-child{margin-top:0;padding-top:0;border-top:0}

/* ── служебные страницы ── */
.nav-svc-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:40px;padding-top:20px;border-top:1px solid var(--nav-line)}
.nav-svc-links a{padding:6px 12px;border:1px solid var(--nav-line2);border-radius:6px;font-weight:600;font-size:14.5px;text-decoration:none}
.nav-svc-links a:hover{border-color:var(--nav-sky);background:var(--nav-skypale)}
.nav-404{text-align:center;max-width:560px;margin:30px auto}
.nav-404 img{display:block;margin:0 auto 10px}
.nav-404-code{margin:0 0 12px}
.nav-404 h1{font-size:30px}
.nav-btn{display:inline-block;padding:11px 20px;border-radius:7px;background:var(--nav-ink);color:#fff;font-weight:600;text-decoration:none}
.nav-btn:hover{background:var(--nav-link);color:#fff}

/* ── подвал ── */
.nav-foot{background:var(--nav-ink);color:#cbd5e1;margin-top:0}
.nav-foot-in{max-width:1440px;margin:0 auto;padding:40px 40px 24px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px}
.nav-foot p{margin:0 0 10px;font-size:14.5px;line-height:1.55}
.nav-foot-name{font-weight:700;font-size:18px!important;color:#fff}
.nav-foot-note{color:#94a3b8;max-width:60ch}
.nav-foot-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.nav-foot-h{font:700 12px var(--nav-sans)!important;text-transform:uppercase;letter-spacing:.08em;color:#94a3b8}
.nav-foot ul{list-style:none;margin:0;padding:0}
.nav-foot li{padding:3px 0;font-size:15px}
.nav-foot a{color:#e2e8f0;text-decoration:none}
.nav-foot a:hover{color:#7dd3fc;text-decoration:underline}
.nav-foot-line{max-width:1440px;margin:0 auto!important;padding:16px 40px 22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;border-top:1px solid #1e293b;font:500 13px var(--nav-mono)!important;color:#94a3b8}

/* ── cookie ── */
.nav-cookie{position:fixed;z-index:60;left:20px;bottom:20px;max-width:440px;padding:18px 20px;background:#fff;color:var(--nav-ink);border:1px solid var(--nav-line2);border-top:4px solid var(--nav-sky);border-radius:10px;box-shadow:0 12px 36px rgba(15,23,42,.18)}
.nav-cookie[hidden]{display:none}
.nav-cookie-text{margin:0 0 14px;font-size:14.5px;line-height:1.5;color:var(--nav-slate)}
.nav-cookie-actions{display:flex;gap:10px}
.nav-cookie-ok,.nav-cookie-no{flex:1;font:600 15px var(--nav-sans);padding:10px 12px;border-radius:7px;cursor:pointer;border:1.5px solid var(--nav-ink)}
.nav-cookie-ok{background:var(--nav-ink);color:#fff}
.nav-cookie-no{background:#fff;color:var(--nav-ink)}
.nav-cookie-ok:hover,.nav-cookie-no:hover{background:var(--nav-link);border-color:var(--nav-link);color:#fff}

/* ── адаптив ── */
@media (max-width:1240px){
  .nav-doc{grid-template-columns:minmax(0,760px)}
  .nav-toc{display:none}
  .nav-toc-mini{display:block}
  .nav-codes{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:960px){
  .nav-frame{grid-template-columns:minmax(0,1fr)}
  .nav-burger{display:inline-flex}
  .nav-topmenu{display:none}
  .nav-findbtn{margin-left:auto}
  .nav-side{position:fixed;top:var(--nav-bar);left:0;right:0;bottom:0;height:auto;z-index:35;background:rgba(15,23,42,.42);border:0;visibility:hidden;opacity:0;transition:opacity .15s}
  .nav-side.is-open{visibility:visible;opacity:1}
  .nav-side-in{width:min(320px,88vw);min-height:100%;background:var(--nav-side);border-right:1px solid var(--nav-line);box-shadow:8px 0 24px rgba(15,23,42,.15)}
  .nav-main{padding:24px 28px 56px}
  .nav-hero{grid-template-columns:minmax(0,1fr) 200px;gap:24px}
  .nav-foot-in{grid-template-columns:minmax(0,1fr);padding:32px 28px 20px;gap:24px}
  .nav-foot-line{padding:14px 28px 20px}
}
@media (max-width:640px){
  :root{--nav-bar:56px}
  .nav-bar-in{padding:0 12px;gap:10px}
  .nav-burger span,.nav-findbtn span{display:none}
  .nav-burger,.nav-findbtn{padding:7px 9px}
  .nav-brand-sub{display:none}
  .nav-brand-mark{width:28px;height:28px}
  .nav-brand-name{font-size:17px}
  .nav-main{padding:18px 16px 48px}
  .nav-hero{grid-template-columns:minmax(0,1fr)}
  .nav-hero-art{display:none}
  .nav-hero-lead{font-size:16.5px}
  .nav-find{padding:16px 14px;margin-left:-4px;margin-right:-4px}
  .nav-find-box input{font-size:16px;padding:11px 0}
  .nav-hit-c{display:none}
  .nav-codes{grid-template-columns:repeat(2,minmax(0,1fr))}
  .nav-code-n{font-size:26px}
  .nav-codes a{padding:14px 12px}
  .nav-code-t{font-size:14px}
  .nav-blk-head h2{font-size:22px}
  .nav-blk-head img{width:34px;height:34px}
  .nav-refs a{grid-template-columns:34px minmax(0,1fr)}
  .nav-ref-m{grid-column:2}
  .nav-prose{font-size:16.5px}
  .nav-prose h2{font-size:22px}
  .nav-prose h3{font-size:18px}
  .nav-def{padding:14px 16px 14px 18px}
  .nav-def-txt,.nav-def--term .nav-def-txt{font-size:16.5px}
  .nav-toc-mini ol{columns:1}
  .nav-tbl{margin-left:-2px;margin-right:-2px}
  .nav-tbl table{font-size:14px}
  .nav-tbl th,.nav-tbl td{padding:8px 10px}
  .nav-offer{flex-direction:column;align-items:stretch;gap:14px}
  .nav-offer-go{justify-content:center}
  .nav-faq>div{padding:14px}
  .nav-faq dd{margin-left:0}
  .nav-pager{grid-template-columns:1fr}
  .nav-pager-next{grid-column:1}
  .nav-see ul{grid-template-columns:1fr}
  .nav-foot-cols{grid-template-columns:1fr 1fr}
  .nav-foot-in{padding:28px 16px 16px}
  .nav-foot-line{padding:14px 16px 18px}
  .nav-cookie{left:10px;right:10px;bottom:10px;max-width:none;padding:14px 16px}
  .nav-cookie-actions{flex-direction:column}
  .nav-index-g{grid-template-columns:28px minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media (max-width:640px){
  .nav-art-meta{gap:4px 14px}
  .nav-art-meta span+span::before{display:none}
}