/* ============================================================
   NeiroSotrudnik — дизайн-система (премиум editorial)
   ============================================================ */
:root{
  --bg:#0a0b0d;
  --bg2:#0e1013;
  --bg3:#12151a;
  --line:rgba(255,255,255,.08);
  --line2:rgba(255,255,255,.16);
  --ink:#f2f0ea;
  --ink2:#b9b4a7;
  --muted:#878c98;
  --gold:#c9a43f;
  --gold2:#e6c976;
  --red:#e4573d;
  --green:#7ab85d;
  --head:'Playfair Display',Georgia,'Times New Roman',serif;
  --sans:'Inter','Segoe UI',system-ui,sans-serif;
  --mono:'JetBrains Mono','Cascadia Mono',Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.65;font-size:16px;overflow-x:hidden;
  font-feature-settings:'ss01';-webkit-font-smoothing:antialiased}
::selection{background:rgba(201,164,63,.28)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 clamp(20px,4vw,48px)}
.num{font-variant-numeric:tabular-nums}

/* ---------- шапка ---------- */
.top{position:fixed;inset:0 0 auto 0;z-index:100;border-bottom:1px solid var(--line);
  background:rgba(10,11,13,.82);backdrop-filter:blur(16px)}
.top .in{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:12px;font-weight:600;letter-spacing:.02em;font-size:16px}
.logo .mk{width:34px;height:34px;border-radius:5px;border:1px solid var(--line2);
  display:grid;place-items:center;font-size:15px;color:var(--gold);background:linear-gradient(160deg,rgba(201,164,63,.16),rgba(201,164,63,0))}
.nav{display:flex;gap:30px;font-size:13.5px;color:var(--ink)}
.nav a{opacity:.78;transition:opacity .2s;letter-spacing:.01em}
.nav a:hover{opacity:1}
.nav .arr{color:var(--gold)}
.tog{display:none}
@media(max-width:980px){.nav{display:none}.tog{display:grid;place-items:center;width:42px;height:42px;border:1px solid var(--line2);border-radius:9px;background:none;color:var(--ink);font-size:18px}}
.cta{display:inline-flex;align-items:center;gap:10px;padding:11px 22px;border-radius:8px;
  background:var(--gold);color:#0a0b0d;font-size:13.5px;font-weight:700;letter-spacing:.03em;
  transition:transform .15s, box-shadow .2s;white-space:nowrap}
.cta:hover{transform:translateY(-1px);box-shadow:0 10px 30px rgba(201,164,63,.25)}
.cta.wht{background:transparent;color:var(--ink);border:1px solid var(--line2)}
.cta.wht:hover{box-shadow:none;border-color:var(--gold);color:var(--gold)}
@media(max-width:700px){.cta{display:none}}

/* ---------- hero ---------- */
.hero{padding:150px 0 70px;min-height:76vh;display:flex;flex-direction:column;justify-content:center;position:relative}
.hero .cols{display:grid;grid-template-columns:0.95fr 1.05fr;gap:clamp(32px,4vw,64px);align-items:center}
.hero .txt{order:2}
.hero .art{order:1}
.hero .art .frame{position:relative;display:inline-block}
.hero .art img{width:100%;max-width:460px;border-radius:24px;border:1px solid var(--line2);
  box-shadow:0 40px 90px rgba(0,0,0,.55);display:block}
.hero .art .gl{position:absolute;inset:-30px -30px auto auto;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,164,63,.25),transparent 70%);pointer-events:none}
.hero .art .cap{position:absolute;left:-18px;bottom:34px;background:var(--bg2);border:1px solid var(--line2);
  padding:12px 18px;border-radius:12px;font-size:12.5px;letter-spacing:.04em;color:var(--ink);
  box-shadow:0 20px 50px rgba(0,0,0,.5);display:flex;align-items:center;gap:10px;white-space:nowrap}
.hero .art .cap .dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 12px var(--green);animation:pulse 1.6s infinite}
@media(max-width:980px){
  .hero{padding:120px 0 50px}
  .hero .cols{grid-template-columns:1fr;gap:40px}
  .hero .txt{order:1}
  .hero .art{order:2;text-align:center}
  .hero .art .cap{left:50%;transform:translateX(-50%);bottom:-6px}
}
.hero .kicker{letter-spacing:.24em;text-transform:uppercase;font-size:11.5px;color:var(--gold);
  display:flex;align-items:center;gap:14px;margin-bottom:28px;font-weight:500}
.hero .kicker::before{content:'';width:46px;height:1px;background:var(--gold)}
.hero h1{font-family:var(--head);font-weight:500;font-size:clamp(36px,4.6vw,62px);line-height:1.08;
  letter-spacing:-.01em}
.hero h1 .em{font-style:italic;color:var(--gold)}
.hero .lead{margin-top:28px;max-width:56ch;color:var(--muted);font-size:clamp(15.5px,1.5vw,18px);line-height:1.7}
.hero .lead b{color:var(--ink);font-weight:500}
.hero .acts{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:12px;padding:16px 30px;border-radius:8px;
  font-size:14.5px;font-weight:600;letter-spacing:.02em;transition:transform .15s,background .2s,border-color .2s;text-decoration:none}
.btn.gold{background:var(--gold);color:#0a0b0d}
.btn.gold:hover{transform:translateY(-2px)}
.btn.ghost{border:1px solid var(--line2);color:var(--ink)}
.btn.ghost:hover{border-color:var(--gold);color:var(--gold)}
.hero .ticker{margin-top:64px;border-top:1px solid var(--line);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px 44px;color:var(--muted);font-size:13px;letter-spacing:.02em}
.hero .ticker b{color:var(--ink);font-weight:600;margin-right:6px}

/* ---------- marquee ---------- */
.mq{overflow:hidden;border-block:1px solid var(--line);padding:20px 0;white-space:nowrap;
  background:var(--bg2);position:relative}
.mq .tr{display:inline-flex;gap:80px;animation:mq 32s linear infinite;font-size:14px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted)}
.mq .tr span{display:inline-flex;align-items:center;gap:80px}
.mq .tr b{color:var(--gold);font-weight:500}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- секции ---------- */
section{padding:110px 0}
.sec-meta{display:flex;align-items:baseline;gap:22px;margin-bottom:46px;flex-wrap:wrap}
.sec-meta .idx{font-family:var(--mono);font-size:13px;color:var(--gold);letter-spacing:.1em}
.sec-meta h2{font-family:var(--head);font-weight:500;font-size:clamp(28px,3.6vw,46px);line-height:1.12}
.sec-meta .tag{color:var(--muted);font-size:14.5px;max-width:44ch;margin-left:auto;text-align:right}
@media(max-width:800px){.sec-meta .tag{margin-left:0;text-align:left}}

/* ---------- проблема ---------- */
.prob{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.prob .big{font-family:var(--head);font-size:clamp(22px,2.6vw,34px);line-height:1.3;font-weight:500}
.prob .big i{color:var(--gold);font-style:italic}
.prob ul{list-style:none;margin-top:34px;display:grid;gap:20px}
.prob li{display:grid;grid-template-columns:auto 1fr;gap:18px}
.prob li .no{font-family:var(--mono);font-size:12.5px;color:var(--gold);border:1px solid var(--line2);
  width:30px;height:30px;border-radius:50%;display:grid;place-items:center;letter-spacing:.05em}
.prob li h4{font-size:15.5px;font-weight:600;letter-spacing:.01em}
.prob li p{color:var(--muted);font-size:14px;margin-top:3px}
@media(max-width:900px){.prob{grid-template-columns:1fr;gap:40px}}

/* ---------- цифры ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line)}
.metric{background:var(--bg);padding:36px 30px}
.metric .v{font-family:var(--head);font-size:clamp(34px,4.4vw,60px);font-weight:500;color:var(--gold);line-height:1}
.metric .l{margin-top:12px;color:var(--muted);font-size:13.5px;letter-spacing:.02em}
@media(max-width:900px){.metrics{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.metrics{grid-template-columns:1fr}}

/* ---------- услуги / сетки ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.card{background:var(--bg);padding:36px;position:relative;text-decoration:none;transition:background .25s;display:block}
.card:hover{background:var(--bg2)}
.card .cno{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.14em}
.card .cic{font-size:26px;margin:26px 0 18px;display:block}
.card h3{font-family:var(--head);font-weight:500;font-size:22px;line-height:1.2}
.card p{color:var(--muted);font-size:14px;margin-top:12px;line-height:1.6}
.card .more{display:inline-flex;align-items:center;gap:10px;margin-top:22px;color:var(--gold);font-size:13px;
  font-weight:600;letter-spacing:.06em;text-transform:uppercase}
.card .more::after{content:'→';transition:transform .2s}
.card:hover .more::after{transform:translateX(4px)}
@media(max-width:980px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.cards{grid-template-columns:1fr}}
.c2{grid-template-columns:repeat(2,1fr)}
@media(max-width:700px){.c2{grid-template-columns:1fr}}

/* ---------- до/после ---------- */
.cmp{overflow:hidden;border:1px solid var(--line);border-radius:4px}
.cmp .row{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line)}
.cmp .head{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line);background:var(--bg2)}
.cmp .head div{padding:20px 26px;font-weight:600;font-size:14px;letter-spacing:.08em;text-transform:uppercase}
.cmp .head .old{color:var(--muted)}
.cmp .head .new{color:var(--gold)}
.cmp .row div{padding:18px 26px;font-size:14.5px;color:var(--muted);align-items:center;display:flex;gap:12px}
.cmp .row div.new{color:var(--ink)}
.cmp .row .old::before{content:'✕';color:var(--red);font-size:14px;flex:0 0 auto}
.cmp .row .new::before{content:'✓';color:var(--green);font-size:14px;flex:0 0 auto}

/* ---------- каналы ---------- */
.channels{display:flex;flex-wrap:wrap;gap:14px}
.ch{display:inline-flex;align-items:center;gap:12px;padding:14px 22px;border:1px solid var(--line2);
  border-radius:100px;font-size:14px;color:var(--ink);transition:border-color .2s,transform .15s;background:var(--bg2)}
.ch:hover{border-color:var(--gold);transform:translateY(-2px)}
.ch .em{font-size:18px}

/* ---------- ступени внедрения ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.step{background:var(--bg);padding:30px 26px;position:relative}
.step .n{font-family:var(--mono);color:var(--gold);font-size:13px;letter-spacing:.1em}
.step .t{font-family:var(--head);font-size:19px;margin:14px 0 10px;font-weight:500}
.step .d{color:var(--muted);font-size:13.5px;line-height:1.6}
.step .time{display:inline-block;margin-top:16px;font-size:12px;color:var(--ink);
  border:1px solid var(--line2);padding:5px 12px;border-radius:100px;letter-spacing:.06em}
@media(max-width:980px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq{border-block:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  padding:24px 6px;font-size:16.5px;font-family:var(--head);font-weight:500}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';color:var(--gold);font-size:22px;font-weight:400;transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .body{padding:0 6px 26px;color:var(--muted);font-size:15px;max-width:80ch;line-height:1.7}
@media(max-width:600px){.faq summary{padding:20px 2px;font-size:15.5px}}

/* ---------- CTA ---------- */
.cta-band{margin:110px 0;border:1px solid var(--line);border-radius:6px;padding:64px clamp(24px,5vw,72px);
  position:relative;overflow:hidden;background:linear-gradient(180deg,var(--bg2),var(--bg))}
.cta-band h2{font-family:var(--head);font-weight:500;font-size:clamp(28px,4vw,50px);line-height:1.2;max-width:20ch}
.cta-band p{color:var(--muted);margin-top:18px;max-width:56ch;font-size:16px}
.cta-band .acts{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.cta-band small{display:block;margin-top:22px;color:var(--muted);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase}

/* ---------- футер ---------- */
footer{border-top:1px solid var(--line);padding:60px 0 40px;background:var(--bg2)}
.ft{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.ft .brand p{color:var(--muted);font-size:13.5px;margin-top:14px;max-width:34ch}
.ft h5{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold);margin-bottom:18px}
.ft a{display:block;color:var(--muted);font-size:14px;margin-bottom:10px;transition:color .2s}
.ft a:hover{color:var(--ink)}
.ft .cmult{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:20px;letter-spacing:.06em}
@media(max-width:900px){.ft{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.ft{grid-template-columns:1fr}}

/* ---------- подстраницы ---------- */
.crumb{padding:118px 0 28px;color:var(--muted);font-size:13px;letter-spacing:.04em}
.crumb a:hover{color:var(--gold)}
.crumb b{color:var(--ink)}
.crumb .sep{margin:0 10px;color:var(--line2)}
.page-hero{padding:30px 0 70px}
.page-hero .cols{display:grid;grid-template-columns:0.9fr 1.1fr;gap:clamp(32px,4vw,64px);align-items:center}
.page-hero .txt{order:2}
.page-hero .art{order:1}
.page-hero .art img{width:100%;max-width:440px;border-radius:20px;border:1px solid var(--line2);box-shadow:0 36px 80px rgba(0,0,0,.5);display:block}
.page-hero .art .gl{position:relative}
@media(max-width:880px){
  .page-hero .cols{grid-template-columns:1fr;gap:36px}
  .page-hero .txt{order:1}
  .page-hero .art{order:2;text-align:center}
  .page-hero .art img{margin:0 auto}
}
.page-hero .kicker{display:flex;align-items:center;gap:12px;color:var(--gold);text-transform:uppercase;
  letter-spacing:.22em;font-size:11.5px;margin-bottom:22px}
.page-hero .kicker::before{content:'';width:40px;height:1px;background:var(--gold)}
.page-hero h1{font-family:var(--head);font-weight:500;font-size:clamp(30px,4.6vw,54px);line-height:1.08;max-width:18ch}
.page-hero .lead{color:var(--muted);margin-top:22px;max-width:60ch;font-size:16.5px;line-height:1.7}
.page-hero .acts{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.article{max-width:760px}
.article h2{font-family:var(--head);font-weight:500;font-size:28px;margin:46px 0 16px;line-height:1.2}
.article h3{font-family:var(--head);font-weight:500;font-size:21px;margin:30px 0 12px}
.article p{color:var(--muted);font-size:16px;margin-bottom:16px;line-height:1.75}
.article p b{color:var(--ink);font-weight:500}
.article ul{color:var(--muted);margin:0 0 20px 22px;display:grid;gap:8px}
.article li::marker{color:var(--gold)}
.article .box{border:1px solid var(--line);border-left:3px solid var(--gold);padding:24px 28px;
  margin:26px 0;background:var(--bg2);border-radius:0 4px 4px 0}
.article .box p{margin:0;font-size:15px}
.article table{width:100%;border-collapse:collapse;margin:24px 0}
.article table td{border:1px solid var(--line);padding:13px 16px;font-size:14.5px;color:var(--muted)}
.article table td:first-child{color:var(--ink);font-weight:500}
.demo-inline{margin-top:48px;border:1px solid var(--line);border-radius:4px;overflow:hidden}
.demo-inline .demo-grid{grid-template-columns:1fr}
.demo-inline .demo-card{margin:0}

/* ---------- демо режим (инлайн в карточках) ---------- */
.dslab{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:14px;display:flex;align-items:center;gap:10px}
.dslab::before{content:'';width:26px;height:1px;background:var(--gold)}

/* ---------- подъём ---------- */
.fade{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.fade.on{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.fade{opacity:1;transform:none;transition:none}}

/* ---------- модалка чата ---------- */
.modal-bg{display:none;position:fixed;inset:0;background:rgba(6,7,9,.9);backdrop-filter:blur(8px);z-index:200}
.modal-bg.open{display:flex;align-items:center;justify-content:center;padding:16px}
.modal{background:var(--bg2);border:1px solid var(--line2);border-radius:14px;width:100%;max-width:640px;
  height:min(660px,92vh);display:flex;flex-direction:column;overflow:hidden}
.modal-head{padding:18px 22px;display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--line)}
.modal-head .icon{font-size:30px}
.modal-head h2{font-size:16px;font-weight:600}
.modal-head .role{color:var(--muted);font-size:12.5px}
.modal-head .close{margin-left:auto;width:36px;height:36px;border:1px solid var(--line2);border-radius:9px;
  background:none;color:var(--muted);font-size:16px;cursor:pointer}
.modal-head .close:hover{color:var(--ink);border-color:var(--gold)}
.chat-body{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:12px}
.msg{max-width:82%;padding:12px 16px;border-radius:12px;font-size:14.5px;line-height:1.55;white-space:pre-wrap}
.msg.bot{align-self:flex-start;background:var(--bg3);border:1px solid var(--line);border-top-left-radius:3px;color:#d9d5ca}
.msg.user{align-self:flex-end;background:var(--gold);border-top-right-radius:3px;color:#0a0b0d;font-weight:500}
.hint{color:var(--muted);font-size:12.5px;padding:12px 20px;border-bottom:1px solid var(--line);background:rgba(201,164,63,.05)}
.input-row{display:flex;gap:10px;padding:14px;border-top:1px solid var(--line)}
.input-row input{flex:1;background:var(--bg);border:1px solid var(--line2);color:var(--ink);border-radius:9px;
  padding:14px 16px;font-size:14.5px;outline:none;transition:border-color .2s}
.input-row input:focus{border-color:var(--gold)}
.input-row button{background:var(--gold);border:none;color:#0a0b0d;border-radius:9px;padding:0 20px;cursor:pointer;font-size:15px}
.typing{color:var(--muted);font-size:13px;align-self:flex-start;padding:8px 14px}

.hidden{display:none!important}