/* Нейросети Онлайн — сайт поддержки покупателей. Светлая и тёмная тема, телефон и компьютер. */
/* шрифты — свои файлы (OFL, см. fonts/LICENSE-OFL.txt), без запросов к Google */
@font-face{font-family:'Manrope';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/manrope-cyrillic.woff2) format('woff2');unicode-range:U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116}
@font-face{font-family:'Manrope';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/manrope-latin.woff2) format('woff2');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:'Manrope';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/manrope-cyrillic.woff2) format('woff2');unicode-range:U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116}
@font-face{font-family:'Manrope';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/manrope-latin.woff2) format('woff2');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:'Manrope';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/manrope-cyrillic.woff2) format('woff2');unicode-range:U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116}
@font-face{font-family:'Manrope';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/manrope-latin.woff2) format('woff2');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:'Manrope';font-style:normal;font-weight:800;font-display:swap;src:url(fonts/manrope-cyrillic.woff2) format('woff2');unicode-range:U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116}
@font-face{font-family:'Manrope';font-style:normal;font-weight:800;font-display:swap;src:url(fonts/manrope-latin.woff2) format('woff2');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:'PT Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ptmono-cyrillic.woff2) format('woff2');unicode-range:U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116}
@font-face{font-family:'PT Mono';font-style:normal;font-weight:400;font-display:swap;src:url(fonts/ptmono-latin.woff2) format('woff2');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:'Unbounded';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/unbounded-cyrillic.woff2) format('woff2');unicode-range:U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116}
@font-face{font-family:'Unbounded';font-style:normal;font-weight:600;font-display:swap;src:url(fonts/unbounded-latin.woff2) format('woff2');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:'Unbounded';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/unbounded-cyrillic.woff2) format('woff2');unicode-range:U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116}
@font-face{font-family:'Unbounded';font-style:normal;font-weight:700;font-display:swap;src:url(fonts/unbounded-latin.woff2) format('woff2');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}
/* /шрифты */
:root{
  --bg:#F6F4F0; --card:#FFFFFF; --ink:#17151C; --muted:#6B6575; --line:#E6E1DA; --soft:#EFEBE4;
  --acc:#5B45E0; --acc-ink:#FFFFFF; --acc-soft:#EEEAFE; --warm:#E9A23B; --ok:#2F7A4F; --ok-soft:#E3F2E8; --err:#C0392B; --err-soft:#FBE7E4;
  --shadow:0 1px 2px rgba(23,21,28,.04), 0 8px 24px rgba(23,21,28,.06);
  --shadow-lg:0 2px 6px rgba(23,21,28,.08), 0 24px 48px rgba(23,21,28,.18);
  --radius:18px; color-scheme:light;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#121117; --card:#1B1A22; --ink:#F1EEF6; --muted:#A49EB0; --line:#2C2A35; --soft:#22202A;
  --acc:#9C8CFF; --acc-ink:#121117; --acc-soft:#26213F; --warm:#F0B65C; --ok:#7CC69A; --ok-soft:#1C2E24; --err:#F08A7C; --err-soft:#341F1C;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); --shadow-lg:0 2px 6px rgba(0,0,0,.4), 0 24px 48px rgba(0,0,0,.55); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#121117; --card:#1B1A22; --ink:#F1EEF6; --muted:#A49EB0; --line:#2C2A35; --soft:#22202A;
  --acc:#9C8CFF; --acc-ink:#121117; --acc-soft:#26213F; --warm:#F0B65C; --ok:#7CC69A; --ok-soft:#1C2E24; --err:#F08A7C; --err-soft:#341F1C;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); --shadow-lg:0 2px 6px rgba(0,0,0,.4), 0 24px 48px rgba(0,0,0,.55); color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 Manrope,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--acc);text-underline-offset:3px}
[id]{scroll-margin-top:84px}
img,svg{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px}
.narrow{max-width:760px}
h1,h2,h3{font-family:Unbounded,Manrope,system-ui,sans-serif;font-weight:700;line-height:1.15;margin:0;text-wrap:balance;letter-spacing:-.01em}
h1{font-size:clamp(30px,5vw,46px)}
h2{font-size:clamp(22px,3.2vw,28px)}
h3{font-size:18px}
p{margin:0}
.muted{color:var(--muted)}
.eyebrow{font:800 12px/1 Manrope,sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--acc)}

/* шапка */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font:700 16px/1.1 Unbounded,sans-serif;letter-spacing:-.01em}
.brand svg{width:32px;height:32px;flex:0 0 auto}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:var(--muted);text-decoration:none;font-weight:700;font-size:14px;padding:8px 12px;border-radius:999px}
.nav a:hover{color:var(--ink);background:var(--soft)}
.nav a[aria-current="page"]{color:var(--acc);background:var(--acc-soft)}
@media (max-width:640px){.brand span{display:none}.nav{flex-wrap:nowrap;gap:2px}.nav a{padding:8px 9px;font-size:13px;white-space:nowrap}}

/* первый экран */
.hero{padding-block:56px 28px}
.hero p.lead{font-size:clamp(16px,2vw,19px);color:var(--muted);max-width:640px;margin-top:14px}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-weight:700;font-size:14px}
.badge i{width:8px;height:8px;border-radius:50%;background:var(--ok);display:inline-block}

/* сетки и карточки */
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width:820px){.grid3{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.tile{display:flex;flex-direction:column;gap:10px;text-decoration:none;color:var(--ink);transition:transform .15s ease,border-color .15s ease}
.tile:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--acc) 45%,var(--line))}
.tile .ic{width:44px;height:44px;border-radius:14px;background:var(--acc-soft);color:var(--acc);display:grid;place-items:center}
.tile .ic svg{width:22px;height:22px}
.tile p{color:var(--muted);font-size:15px}
.tile .go{margin-top:auto;font-weight:800;font-size:14px;color:var(--acc)}
section{padding-block:28px}

/* частые вопросы */
.faq{display:grid;gap:10px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:0 18px}
.faq summary{list-style:none;cursor:pointer;font-weight:800;padding:16px 28px 16px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:2px;top:50%;width:10px;height:10px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(225deg)}
.faq .ans{padding:0 0 16px;color:var(--muted)}
.faq .ans p+p,.faq .ans ul{margin-top:8px}
.faq .ans ul{padding-left:20px}

/* форма */
.form{display:grid;gap:16px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.row2{grid-template-columns:1fr}}
.field{display:grid;gap:6px;align-content:start}
.field label{font-weight:800;font-size:14px}
.field .hint{font-size:13px;color:var(--muted)}
input,select,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:12px;padding:12px 14px;width:100%;min-width:0;outline:none;transition:border-color .15s, box-shadow .15s}
input,select{min-height:52px}
textarea{min-height:140px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--acc);box-shadow:0 0 0 4px color-mix(in srgb,var(--acc) 18%,transparent)}
.field.bad input,.field.bad select,.field.bad textarea{border-color:var(--err)}
.field .err{display:none;font-size:13px;color:var(--err);font-weight:700}
.field.bad .err{display:block}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted)}
.check input{width:20px;height:20px;margin-top:2px;flex:0 0 auto;accent-color:var(--acc)}
.hp{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}
.btn{appearance:none;border:0;cursor:pointer;font:800 16px/1 Manrope,sans-serif;padding:16px 22px;border-radius:14px;background:var(--acc);color:var(--acc-ink);display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none}
.btn:hover{filter:brightness(1.05)}
.btn[disabled]{opacity:.6;cursor:progress}
.btn.ghost{background:var(--soft);color:var(--ink)}
.note{border-radius:14px;padding:14px 16px;font-size:15px}
.note.ok{background:var(--ok-soft);color:var(--ink);border:1px solid color-mix(in srgb,var(--ok) 35%,transparent)}
.note.err{background:var(--err-soft);border:1px solid color-mix(in srgb,var(--err) 35%,transparent)}
.done{display:none;text-align:center;padding:12px 4px}
.done .num{font:700 clamp(28px,6vw,40px)/1 Unbounded,sans-serif;color:var(--acc);margin:12px 0 8px;font-variant-numeric:tabular-nums}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;align-items:start}
@media (max-width:900px){.layout{grid-template-columns:1fr}}
.side{display:grid;gap:14px}
@media (min-width:901px){.side{position:sticky;top:84px}}
.side .card h3{font-size:16px;margin-bottom:6px}
.side .card p{font-size:14px;color:var(--muted)}
.steps{counter-reset:s;display:grid;gap:10px;margin:0;padding:0;list-style:none}
.steps li{counter-increment:s;display:grid;grid-template-columns:28px 1fr;gap:10px;font-size:14px;color:var(--muted)}
.steps li::before{content:counter(s);width:28px;height:28px;border-radius:50%;background:var(--acc-soft);color:var(--acc);display:grid;place-items:center;font-weight:800;font-size:13px}

/* документы */
.doc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(20px,4vw,40px);box-shadow:var(--shadow)}
.doc h2{font-size:20px;margin:32px 0 10px;scroll-margin-top:90px}
.doc h2:first-of-type{margin-top:8px}
.doc p,.doc li{color:var(--ink);max-width:70ch}
.doc p+p{margin-top:10px}
.doc ol,.doc ul{padding-left:22px;margin:8px 0}
.doc li+li{margin-top:6px}
.doc .meta{color:var(--muted);font-size:14px;margin-top:8px}
.toc{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 0}
.toc a{font-size:13px;font-weight:700;text-decoration:none;padding:6px 12px;border-radius:999px;background:var(--soft);color:var(--ink)}
.req{display:grid;grid-template-columns:200px 1fr;gap:8px 16px;margin-top:10px;font-size:15px}
.req dt{color:var(--muted)} .req dd{margin:0;font-weight:700}
@media (max-width:560px){.req{grid-template-columns:1fr}.req dd{margin-bottom:6px}}

/* скачивание */
.dl{max-width:620px;margin:0 auto;text-align:center}
.dl .card{padding:32px 24px}
.dl .file{display:flex;align-items:center;gap:14px;text-align:left;background:var(--soft);border-radius:14px;padding:14px 16px;margin:18px 0}
.dl .file svg{width:36px;height:36px;color:var(--acc);flex:0 0 auto}

/* подвал */
.foot{border-top:1px solid var(--line);margin-top:40px;padding-block:28px 40px;color:var(--muted);font-size:14px}
.foot .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between}
.foot a{color:var(--muted)}
.foot nav{display:flex;gap:18px;flex-wrap:wrap}

/* как приходит товар */
.flow{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;counter-reset:f}
.flow li{counter-increment:f;display:grid;gap:6px;align-content:start}
.flow li::before{content:counter(f);width:36px;height:36px;border-radius:50%;background:var(--acc);color:var(--acc-ink);display:grid;place-items:center;font:700 15px/1 Unbounded,sans-serif;margin-bottom:8px}
.flow b{font-size:17px}
.flow span{color:var(--muted);font-size:15px}
@media (max-width:900px){.flow{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.flow{grid-template-columns:1fr}}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:28px;align-items:start}
@media (max-width:820px){.split{grid-template-columns:1fr}}
.letter{margin:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;min-width:0}
.letter-head{display:flex;align-items:center;gap:6px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--soft);font-size:13px}
.letter-head .dot{width:10px;height:10px;border-radius:50%;background:var(--line)}
.letter-head .muted{margin-left:8px}
.letter-code{display:grid;gap:2px;padding:16px 20px;border-bottom:1px dashed var(--line);font-size:13px}
.letter-code b{font:700 15px/1.4 "PT Mono",ui-monospace,Menlo,monospace;color:var(--acc);overflow-wrap:anywhere}
.letter-body{padding:18px 20px 22px;font-size:15px;line-height:1.65;overflow-wrap:anywhere}
.formats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width:900px){.formats{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.formats{grid-template-columns:1fr}}
.fmt{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px;align-items:start}
.ext{display:grid;place-items:end center;width:50px;height:62px;padding-bottom:11px;border-radius:8px;background:var(--acc-soft);color:var(--acc);font:700 12px/1 "PT Mono",ui-monospace,Menlo,monospace;letter-spacing:.04em;clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,0 100%);position:relative}
.ext::after{content:"";position:absolute;top:0;right:0;width:14px;height:14px;background:color-mix(in srgb,var(--acc) 32%,var(--acc-soft));border-bottom-left-radius:5px}
.fmt b{display:block;margin-bottom:4px}
.fmt p{color:var(--muted);font-size:14px}

/* главная: веер обложек и полка товаров */
.hero-home{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:24px;align-items:center}
.fan{position:relative;height:420px}
.fan img{position:absolute;top:50%;left:50%;width:min(210px,48%);height:auto;aspect-ratio:3/4;object-fit:cover;border-radius:14px;box-shadow:var(--shadow-lg);transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.fan img:nth-child(1){transform:translate(-96%,-46%) rotate(-9deg)}
.fan img:nth-child(2){transform:translate(-50%,-54%);z-index:2}
.fan img:nth-child(3){transform:translate(-4%,-46%) rotate(9deg)}
.fan:hover img:nth-child(1){transform:translate(-104%,-48%) rotate(-12deg)}
.fan:hover img:nth-child(3){transform:translate(4%,-48%) rotate(12deg)}
@media (max-width:900px){.hero-home{grid-template-columns:1fr}.fan{height:330px;margin-top:4px}.fan img{width:min(190px,40%)}}
@media (max-width:480px){.fan{height:260px}.fan img{width:42%}}
@media (prefers-reduced-motion:reduce){.fan img{transition:none}}
.sec-head{display:grid;gap:8px;margin-bottom:18px;max-width:640px}
.shelf{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px 16px}
@media (max-width:900px){.shelf{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:560px){.shelf{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 12px}}
.shelf figure{margin:0;display:grid;gap:10px;align-content:start}
.shelf img{width:100%;height:auto;aspect-ratio:3/4;object-fit:cover;border-radius:12px;box-shadow:var(--shadow);background:var(--soft)}
.shelf figcaption{display:grid;gap:2px;font-size:14px;line-height:1.35}
.shelf figcaption span{color:var(--muted);font-size:13px}