:root{
  --bg:#131119;
  --bg-deep:#0e0c13;
  --surface:#1b1824;
  --surface-2:#221e2e;
  --line:rgba(255,255,255,.08);
  --ink:#f4f3f8;
  --muted:#a7a2b6;
  --violet:#8b81f2;
  --violet-deep:#534AB7;
  --violet-dark:#433c96;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
::selection{background:var(--violet-deep);color:#fff}
body{font-family:'Poppins',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:15.5px}
img{max-width:100%}
.wrap{max-width:1100px;margin:0 auto;padding:0 22px}
h1,h2.sec,.display{font-family:'Unbounded','Poppins',sans-serif;letter-spacing:-.01em}

/* ---------- header ---------- */
header.site{position:sticky;top:0;background:rgba(19,17,25,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.brand img{height:36px;width:36px}
.brand b{font-size:16px;font-weight:700;letter-spacing:.06em}
.brand b span{color:var(--violet);font-weight:500}
nav.menu{display:flex;gap:28px;align-items:center}
nav.menu a{text-decoration:none;color:var(--muted);font-size:14px;font-weight:500;transition:color .15s}
nav.menu a:hover{color:var(--ink)}
nav.menu a.active{color:var(--violet)}
nav.menu a.btn{background:var(--violet-deep);color:#fff;padding:10px 20px;border-radius:11px}
nav.menu a.btn:hover{background:var(--violet-dark);color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:96px 0 0;background:linear-gradient(180deg,#17141f 0%,var(--bg) 100%)}
.hero::before{content:"";position:absolute;inset:-20% -10% auto;height:90%;background:radial-gradient(900px 420px at 60% 10%, rgba(83,74,183,.34), transparent 70%);animation:breathe 9s ease-in-out infinite alternate;pointer-events:none}
@keyframes breathe{from{opacity:.65;transform:translateX(-3%) scale(1)}to{opacity:1;transform:translateX(3%) scale(1.08)}}
@media(prefers-reduced-motion:reduce){.hero::before{animation:none}}
.hero .wrap{position:relative;z-index:2;padding-bottom:clamp(200px,30vw,360px)}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--violet);font-weight:600;margin-bottom:22px}
.kicker::before{content:"";width:26px;height:2px;background:var(--violet)}
.hero h1{font-size:clamp(27px,4.4vw,50px);font-weight:600;line-height:1.16;max-width:820px}
.hero h1 em{font-style:normal;color:var(--violet)}
.hero p.sub{margin:24px 0 38px;font-size:16.5px;color:var(--muted);max-width:600px}
.peaks{position:absolute;bottom:-2px;left:0;width:100%;height:clamp(160px,26vw,320px);z-index:1;pointer-events:none}

/* ---------- buttons ---------- */
.cta{display:inline-block;background:var(--violet-deep);color:#fff;text-decoration:none;font-weight:600;font-size:15px;padding:14px 30px;border-radius:12px;transition:background .15s,transform .15s;border:none;cursor:pointer;font-family:'Poppins',sans-serif}
.cta:hover{background:var(--violet-dark);transform:translateY(-1px)}
.cta.ghost{background:transparent;color:var(--ink);border:1px solid rgba(255,255,255,.22)}
.cta.ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.4)}

/* ---------- sections ---------- */
section{padding:84px 0}
section.tint{background:var(--bg-deep)}
.sec-label{font-size:12.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--violet);font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.sec-label::before{content:"";width:26px;height:2px;background:var(--violet)}
h2.sec{font-size:clamp(21px,2.8vw,30px);font-weight:600;margin-bottom:14px;line-height:1.25}
p.sec-sub{color:var(--muted);margin-bottom:40px;max-width:620px}

/* ---------- cards ---------- */
.grid{display:grid;gap:18px}
.grid.c3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px;transition:border-color .2s,transform .2s,background .2s}
.card:hover{border-color:rgba(139,129,242,.45);transform:translateY(-3px);background:var(--surface-2);box-shadow:0 14px 44px rgba(83,74,183,.16)}
.card .ico{width:44px;height:44px;border-radius:12px;background:rgba(83,74,183,.22);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px}
.card h3{font-size:15.5px;font-weight:600;margin-bottom:9px;line-height:1.35}
.card p{font-size:14px;color:var(--muted)}
.card a{color:var(--violet);font-weight:600;text-decoration:none}
.card a:hover{text-decoration:underline}
.card.ghosted{border-style:dashed;background:transparent}
.card.ghosted:hover{background:var(--surface)}

/* ---------- route (процесс-восхождение) ---------- */
.route{position:relative;max-width:760px}
.route::before{content:"";position:absolute;left:19px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--violet) 0%,rgba(139,129,242,.12) 100%)}
.route .stop{position:relative;padding:0 0 40px 66px}
.route .stop:last-child{padding-bottom:0}
.route .dot{position:absolute;left:8px;top:2px;width:24px;height:24px;border-radius:50%;background:var(--bg);border:2px solid var(--violet);display:flex;align-items:center;justify-content:center}
.route .dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--violet)}
.route .alt{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--violet);font-weight:600;margin-bottom:4px}
.route h3{font-size:16.5px;font-weight:600;margin-bottom:6px}
.route p{color:var(--muted);font-size:14.5px;max-width:520px}
.route .stop.summit .dot{background:var(--violet-deep);box-shadow:0 0 0 6px rgba(83,74,183,.18)}

/* ---------- case band ---------- */
.case-band{position:relative;overflow:hidden;background:linear-gradient(135deg,var(--violet-deep) 0%,#6a5fe0 100%);border-radius:24px;color:#fff;padding:46px;display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between}
.case-band h3{font-family:'Unbounded',sans-serif;font-size:clamp(19px,2.4vw,25px);font-weight:600;margin-bottom:10px}
.case-band p{opacity:.92;max-width:520px;font-size:14.5px}
.case-band .cta{background:#fff;color:var(--violet-deep)}
.case-band .cta:hover{background:#eceafd}
.tag{display:inline-block;background:rgba(255,255,255,.16);border-radius:999px;padding:5px 15px;font-size:12px;font-weight:500;letter-spacing:.04em;margin-bottom:16px}
.check{list-style:none;font-size:14.5px}
.check li{margin:7px 0;padding-left:26px;position:relative}
.check li::before{content:"✓";position:absolute;left:0;font-weight:700}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:34px;align-items:start}
@media(max-width:780px){.contact-grid{grid-template-columns:1fr}}
.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:14px;display:block;text-decoration:none;color:var(--ink);transition:border-color .15s}
.contact-card:hover{border-color:rgba(139,129,242,.45)}
.contact-card .label{font-size:12.5px;color:var(--muted);margin-bottom:3px;letter-spacing:.06em;text-transform:uppercase}
.contact-card .val{font-weight:600;color:var(--violet);font-size:16px}
form.lead{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:32px}
form.lead label{display:block;font-size:13.5px;font-weight:500;margin:18px 0 7px;color:var(--ink)}
form.lead label:first-of-type{margin-top:0}
form.lead input,form.lead textarea{width:100%;font-family:inherit;font-size:15px;padding:13px 15px;border:1px solid rgba(255,255,255,.14);border-radius:11px;background:var(--bg);color:var(--ink)}
form.lead input::placeholder,form.lead textarea::placeholder{color:#6b6680}
form.lead input:focus,form.lead textarea:focus{outline:2px solid var(--violet-deep);border-color:transparent}
form.lead .cta{margin-top:24px}
.flash{background:rgba(52,168,102,.14);border:1px solid rgba(52,168,102,.4);color:#8fe0b0;border-radius:12px;padding:14px 18px;margin-bottom:20px;font-size:14.5px}
.err{color:#ff8d7e;font-size:13px;margin-top:5px}

/* ---------- page head ---------- */
.page-head{padding:64px 0 6px}
.page-head h1{font-size:clamp(24px,3.4vw,36px);font-weight:600}
.page-head p{color:var(--muted);margin-top:12px;max-width:640px}

/* ---------- footer ---------- */
footer.site{border-top:1px solid var(--line);padding:34px 0;font-size:13px;color:var(--muted);margin-top:30px;background:var(--bg-deep)}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
footer.site a{color:var(--muted)}
footer.site a:hover{color:var(--ink)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

@media(max-width:680px){
  nav.menu{gap:16px}
  nav.menu a:not(.btn){display:none}
  .hero .wrap{padding-bottom:140px}
  .case-band{padding:32px}
  section{padding:64px 0}
}

/* ---------- footer columns ---------- */
.fcols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px;padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:20px}
@media(max-width:700px){.fcols{grid-template-columns:1fr}}
.fcols .fbrand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.fcols .fbrand img{width:30px;height:30px}
.fcols .fbrand b{color:var(--ink);letter-spacing:.05em}
.fcols p{max-width:280px;font-size:13px}
.fcols h4{color:var(--ink);font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px;font-weight:600}
.fcols a{display:block;margin:7px 0;text-decoration:none}
.fcols a:hover{color:var(--violet)}
.flegal{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px}

/* ---------- chat mockup ---------- */
.chat{background:#0b0a10;border:1px solid var(--line);border-radius:24px;padding:20px;max-width:370px;font-size:13.5px;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.chat .chead{display:flex;align-items:center;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:12px}
.chat .chead .ava{width:34px;height:34px;border-radius:50%;background:var(--violet-deep);display:flex;align-items:center;justify-content:center;font-size:15px}
.chat .chead b{font-size:13.5px}
.chat .chead span{display:block;font-size:11.5px;color:#4fd18b}
.chat .msg{padding:9px 13px;border-radius:14px;margin:8px 0;max-width:88%;line-height:1.45;width:fit-content}
.chat .msg.in{background:var(--surface-2);border-bottom-left-radius:4px}
.chat .msg.out{background:var(--violet-deep);color:#fff;margin-left:auto;border-bottom-right-radius:4px}
.chat .msg .btns{margin-top:8px;display:flex;flex-direction:column;gap:6px}
.chat .msg .btns span{border:1px solid rgba(139,129,242,.5);color:var(--violet);border-radius:9px;padding:6px 10px;text-align:center;font-size:12.5px}

/* ---------- case rows ---------- */
.case-row{display:grid;grid-template-columns:1.15fr 1fr;gap:46px;align-items:center;padding:52px 0;border-bottom:1px solid var(--line)}
.case-row:last-of-type{border-bottom:none}
@media(max-width:820px){.case-row{grid-template-columns:1fr}}
.case-row h3{font-family:'Unbounded',sans-serif;font-size:clamp(18px,2.2vw,23px);font-weight:600;margin:10px 0 14px}
.case-row .desc{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.chip{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:5px 13px;font-size:12.5px;color:var(--muted);margin:0 8px 8px 0}
.status{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#4fd18b;font-weight:500}
.status::before{content:"";width:8px;height:8px;border-radius:50%;background:#4fd18b}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:40px;display:flex;align-items:center;justify-content:center;min-height:280px}

/* ---------- faq ---------- */
details.faq{border:1px solid var(--line);border-radius:14px;padding:16px 22px;margin-bottom:12px;background:var(--surface)}
details.faq summary{cursor:pointer;font-weight:600;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";color:var(--violet);font-size:22px;font-weight:500;flex-shrink:0}
details.faq[open] summary::after{content:"−"}
details.faq p{color:var(--muted);margin-top:10px;font-size:14.5px;max-width:680px}

/* ---------- articles ---------- */
.post-meta{font-size:13px;color:var(--muted);margin:4px 0 8px}
.prose{max-width:760px}
.prose p{color:#c9c5da;margin:0 0 16px;font-size:15px}
.prose h2{font-size:19px;font-weight:600;margin:32px 0 12px;color:var(--ink)}
.prose ul,.prose ol{margin:0 0 16px 22px;color:#c9c5da;font-size:15px}
.prose li{margin:7px 0}
.prose strong{color:var(--ink)}
.prose a{color:var(--violet)}
.prose .callout{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--violet-deep);border-radius:12px;padding:16px 20px;margin:22px 0;color:#c9c5da;font-size:14.5px}