:root{
  --bg:#070B12; --bg2:#0B1424; --panel:rgba(11,20,36,.72);
  --blue:#1769FF; --cyan:#18D8F0; --white:#FFFFFF; --muted:#94A3B8;
  --text:#E8EEF9; --line:rgba(148,163,184,.14); --line-strong:rgba(148,163,184,.28);
  --font:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:rgba(23,105,255,.4)}
a{color:inherit}
img,svg{display:block;max-width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ---------- типографика ---------- */
h1,h2,h3{font-weight:800;line-height:1.08;letter-spacing:-.02em;color:var(--white)}
h1{font-size:clamp(2.4rem,6.5vw,4.6rem);text-transform:uppercase}
h2{font-size:clamp(1.9rem,4.2vw,3rem);text-transform:uppercase}
h3{font-size:1.15rem;letter-spacing:0}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:.78rem;font-weight:700;letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);margin-bottom:20px}
.eyebrow::before{content:"";width:34px;height:1px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
.lead{color:var(--muted);font-size:1.06rem;max-width:640px}
.section{padding:110px 0;position:relative}
.section-alt{background:var(--bg2)}
.section-head{margin-bottom:56px}
.section-head h2{margin-bottom:18px}
.grad{background:linear-gradient(92deg,#5C9DFF 0%,var(--cyan) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}

/* ---------- кнопки ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 30px;border-radius:6px;font-weight:700;font-size:.95rem;letter-spacing:.02em;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .25s,box-shadow .25s,border-color .25s,color .25s,background .25s;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,#1769FF,#0E4FD6);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(23,105,255,.35)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(11,20,36,.35)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.btn-sm{padding:11px 22px;font-size:.85rem}
.btn[disabled]{opacity:.55;cursor:wait;transform:none}

/* ---------- шапка ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.site-header.scrolled{background:rgba(7,11,18,.82);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:74px}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:800;font-size:1.12rem;letter-spacing:.06em;color:var(--white)}
.logo-mark{width:44px;height:44px;flex:none;object-fit:contain}
.logo span{color:var(--cyan)}
.nav{display:flex;gap:6px;margin-left:auto}
.nav a{position:relative;text-decoration:none;color:var(--muted);font-size:.9rem;font-weight:600;padding:9px 13px;border-radius:6px;transition:color .2s}
.nav a:hover{color:var(--white)}
.nav a.active{color:var(--white)}
.nav a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:2px}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line-strong);border-radius:6px;width:44px;height:44px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger i{display:block;width:18px;height:2px;background:var(--white);transition:.3s}
.burger[aria-expanded="true"] i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] i:nth-child(2){opacity:0}
.burger[aria-expanded="true"] i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{display:none;flex-direction:column;gap:4px;background:rgba(7,11,18,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:16px 24px 24px}
.mobile-nav.open{display:flex}
.mobile-nav a{text-decoration:none;color:var(--text);font-weight:700;font-size:1.1rem;padding:15px 12px;border-radius:8px;border:1px solid transparent}
.mobile-nav a:hover,.mobile-nav a.active{background:var(--bg2);border-color:var(--line)}
.mobile-nav .btn{margin-top:14px;padding:16px}

/* ---------- hero ---------- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden;padding:130px 0 60px;background:radial-gradient(1100px 560px at 72% 38%,rgba(23,105,255,.16),transparent 62%),radial-gradient(700px 420px at 18% 80%,rgba(24,216,240,.07),transparent 60%),var(--bg)}
.hero-network{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:.85}
.hero-network .edge{stroke:#1E3A66;stroke-width:1}
.hero-network .node{fill:#274067}
.hero-network .hub{fill:var(--cyan);filter:drop-shadow(0 0 9px rgba(24,216,240,.85))}
.hero-network .hub-ring{fill:none;stroke:rgba(24,216,240,.5);stroke-width:1}
.hero-network .signal{fill:#8FEAFF;filter:drop-shadow(0 0 7px var(--cyan))}
.hero-inner{position:relative;z-index:2}
.hero p.sub{margin:26px 0 40px;font-size:clamp(1rem,2vw,1.2rem);color:var(--muted);max-width:600px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-tags{position:relative;z-index:2;margin-top:auto;padding-top:70px}
.hero-tags .line{height:1px;background:var(--line);margin-bottom:22px}
.hero-tags p{font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);text-align:center}

/* ---------- about strip ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:70px;align-items:center}
.about-grid h2{margin-bottom:24px}
.about-grid p{color:var(--muted);margin-bottom:18px}
.stat-panel{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:38px;position:relative;overflow:hidden}
.stat-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent)}
.stat-panel .mono{font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
.stat-panel p{color:var(--muted);font-size:.95rem}

/* ---------- услуги (редакционная сетка) ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-flow:dense;gap:20px}
.svc-card{position:relative;display:flex;flex-direction:column;gap:16px;padding:30px 28px;min-height:250px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(160deg,rgba(11,20,36,.9),rgba(11,20,36,.45));text-decoration:none;overflow:hidden;transition:transform .3s,border-color .3s,box-shadow .3s}
.svc-card::after{content:"";position:absolute;inset:0;background:radial-gradient(420px 220px at var(--mx,50%) var(--my,0%),rgba(23,105,255,.14),transparent 65%);opacity:0;transition:opacity .3s;pointer-events:none}
.svc-card:hover{transform:translateY(-5px);border-color:rgba(23,105,255,.55);box-shadow:0 22px 50px rgba(3,8,20,.6)}
.svc-card:hover::after{opacity:1}
.svc-card--tall{grid-row:span 2;min-height:0}
.svc-card--wide{grid-column:span 2}
.svc-top{display:flex;justify-content:space-between;align-items:flex-start}
.svc-num{font-size:.75rem;font-weight:800;letter-spacing:.2em;color:var(--muted)}
.svc-icon{width:44px;height:44px;color:var(--cyan)}
.svc-icon svg{width:100%;height:100%;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.svc-card h3{font-size:1.3rem}
.svc-card p{color:var(--muted);font-size:.93rem;flex:1}
.svc-link{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.svc-link svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .25s}
.svc-card:hover .svc-link svg{transform:translateX(5px)}
.svc-cta{align-items:flex-start;justify-content:center;background:linear-gradient(135deg,rgba(23,105,255,.16),rgba(24,216,240,.06));border-style:dashed}

/* ---------- преимущества ---------- */
.principles{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.principle{padding:38px 30px;border-right:1px solid var(--line);background:var(--panel);transition:background .3s}
.principle:last-child{border-right:none}
.principle:hover{background:rgba(23,105,255,.07)}
.principle .p-num{font-size:.8rem;font-weight:800;letter-spacing:.2em;color:var(--blue);margin-bottom:20px}
.principle h3{margin-bottom:12px}
.principle p{color:var(--muted);font-size:.92rem}

/* ---------- география ---------- */
.geo-panel{border:1px solid var(--line);border-radius:14px;background:radial-gradient(800px 400px at 50% 0%,rgba(23,105,255,.1),transparent 70%),var(--bg2);padding:20px;overflow:hidden}
.geo-map{width:100%;height:auto}
.geo-map .geo-arc{fill:none;stroke:var(--blue);stroke-width:1.2;opacity:.65;stroke-dasharray:5 7;animation:flow 2.6s linear infinite}
.geo-map .geo-arc.hot{stroke:var(--cyan);opacity:.9}
@keyframes flow{to{stroke-dashoffset:-24}}
.geo-map .geo-point circle{fill:var(--cyan)}
.geo-map .geo-point text{fill:var(--muted);font-size:13px;font-family:var(--font);font-weight:600}
.geo-map .geo-point:hover text{fill:var(--white)}
.geo-map .geo-ring{fill:none;stroke:rgba(24,216,240,.45);stroke-width:1}
.geo-note{display:flex;gap:10px;align-items:flex-start;margin-top:18px;padding:14px 18px;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:.86rem}
.geo-note svg{flex:none;width:17px;height:17px;stroke:var(--cyan);fill:none;stroke-width:1.6;margin-top:2px}

/* ---------- партнёрство / процесс ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.partner-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.p-card{border:1px solid var(--line);border-radius:10px;padding:20px;background:var(--panel);transition:border-color .3s,transform .3s}
.p-card:hover{border-color:rgba(24,216,240,.5);transform:translateY(-3px)}
.p-card h3{font-size:.98rem;margin-bottom:6px}
.p-card p{color:var(--muted);font-size:.85rem}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:50px}
.step{border-top:2px solid rgba(23,105,255,.5);padding:22px 18px 0}
.step .s-num{font-size:.78rem;font-weight:800;letter-spacing:.2em;color:var(--cyan);margin-bottom:12px}
.step h3{font-size:1rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.88rem}

/* ---------- финальный CTA ---------- */
.final-cta{text-align:center;padding:130px 0;background:radial-gradient(900px 460px at 50% 120%,rgba(23,105,255,.18),transparent 65%),var(--bg2);position:relative;overflow:hidden}
.final-cta h2{margin-bottom:20px}
.final-cta p{color:var(--muted);margin-bottom:38px}

/* ---------- страницы услуг ---------- */
.page-hero{padding:170px 0 90px;background:radial-gradient(900px 460px at 80% 0%,rgba(23,105,255,.15),transparent 60%),var(--bg);position:relative}
.page-hero h1{font-size:clamp(2rem,5vw,3.6rem)}
.page-hero .lead{margin-top:22px}
.breadcrumbs{display:flex;gap:10px;list-style:none;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:26px}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--cyan)}
.svc-body{display:grid;grid-template-columns:1fr 360px;gap:70px}
.svc-body h2{font-size:1.5rem;margin:0 0 22px;text-transform:none;letter-spacing:0}
.svc-block{margin-bottom:64px}
.svc-block>p{color:var(--muted)}
.check-list{list-style:none;display:grid;gap:13px;margin-top:8px}
.check-list li{position:relative;padding-left:32px;color:var(--muted)}
.check-list li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border:1.5px solid var(--cyan);border-radius:4px;background:linear-gradient(135deg,rgba(23,105,255,.25),transparent)}
.check-list li::after{content:"";position:absolute;left:5px;top:10px;width:7px;height:4px;border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(-45deg)}
.tech-box{border:1px solid rgba(24,216,240,.3);border-radius:10px;background:rgba(24,216,240,.05);padding:22px 24px;color:var(--muted);font-size:.93rem}
.scheme{border:1px solid var(--line);border-radius:12px;background:var(--bg2);padding:16px;margin-top:10px}
.scheme svg{width:100%;height:auto}
.scheme .flow-line{stroke:var(--blue);stroke-width:1.4;fill:none;stroke-dasharray:6 6;animation:flow 2s linear infinite}
.scheme .flow-node{fill:var(--bg);stroke:var(--line-strong);stroke-width:1}
.scheme .flow-label{fill:var(--text);font-size:13px;font-weight:700;font-family:var(--font)}
.scheme .flow-sublabel{fill:var(--muted);font-size:10.5px;font-family:var(--font)}
details.faq{border:1px solid var(--line);border-radius:10px;background:var(--panel);margin-bottom:12px;overflow:hidden}
details.faq summary{cursor:pointer;list-style:none;padding:20px 24px;font-weight:700;color:var(--white);display:flex;justify-content:space-between;align-items:center;gap:16px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-size:1.4rem;color:var(--cyan);font-weight:400;transition:transform .25s}
details.faq[open] summary::after{transform:rotate(45deg)}
details.faq .faq-a{padding:0 24px 20px;color:var(--muted);font-size:.93rem}
.svc-aside{position:sticky;top:110px;align-self:start;display:grid;gap:16px}
.aside-box{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:28px}
.aside-box h3{margin-bottom:10px}
.aside-box p{color:var(--muted);font-size:.9rem;margin-bottom:20px}
.aside-nav{display:grid;gap:4px}
.aside-nav a{text-decoration:none;color:var(--muted);font-size:.9rem;font-weight:600;padding:10px 14px;border-radius:8px;border:1px solid transparent;transition:.2s}
.aside-nav a:hover{color:var(--white);background:var(--bg2);border-color:var(--line)}
.aside-nav a.active{color:var(--cyan);background:rgba(24,216,240,.06);border-color:rgba(24,216,240,.3)}

/* ---------- формы ---------- */
.form-panel{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:40px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1/-1}
.field label{font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.field label b{color:var(--cyan);font-weight:800}
.field input,.field select,.field textarea{background:var(--bg);border:1px solid var(--line-strong);border-radius:8px;color:var(--text);font-family:inherit;font-size:.95rem;padding:14px 16px;transition:border-color .2s;width:100%}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--cyan)}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:#FF5A6E}
.field .err{display:none;color:#FF8A99;font-size:.8rem}
.field.invalid .err{display:block}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394A3B8' fill='none' stroke-width='1.6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.hp{position:absolute;left:-9999px;opacity:0;height:0}
.form-foot{display:flex;align-items:center;gap:18px;margin-top:26px;flex-wrap:wrap}
.form-note{font-size:.8rem;color:var(--muted);max-width:420px}
.form-success{border:1px solid rgba(24,216,240,.4);border-radius:12px;background:rgba(24,216,240,.06);padding:34px;text-align:center}
.form-success h3{margin-bottom:10px}
.form-success p{color:var(--muted)}
.form-error{border:1px solid rgba(255,90,110,.4);border-radius:12px;background:rgba(255,90,110,.06);padding:22px 24px;color:var(--muted);font-size:.92rem}
.form-error a{color:var(--cyan)}

/* ---------- контакты ---------- */
.contact-card{border:1px solid var(--line);border-radius:12px;background:var(--panel);padding:30px}
.contact-card .mono{font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);margin-bottom:10px}
.contact-card a.big{color:var(--white);font-size:1.25rem;font-weight:800;text-decoration:none}
.contact-card a.big:hover{color:var(--cyan)}
.contact-card p{color:var(--muted);font-size:.9rem;margin-top:10px}

/* ---------- 404 ---------- */
.nf{min-height:100svh;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden}
.nf h1{font-size:clamp(6rem,20vw,12rem);background:linear-gradient(180deg,#5C9DFF,var(--cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nf p{color:var(--muted);margin:18px auto 36px;max-width:420px}

/* ---------- футер ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--bg2);padding:70px 0 34px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;margin-bottom:54px}
.footer-grid p.tag{color:var(--muted);font-size:.9rem;margin-top:16px;max-width:280px}
.f-col h4{font-size:.78rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:18px;font-weight:800}
.f-col a{display:block;text-decoration:none;color:var(--muted);font-size:.9rem;padding:5px 0;transition:color .2s}
.f-col a:hover{color:var(--cyan)}
.footer-bottom{border-top:1px solid var(--line);padding-top:26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:.82rem}

/* ---------- анимации появления ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.1s}.reveal[data-delay="2"]{transition-delay:.2s}
.reveal[data-delay="3"]{transition-delay:.3s}.reveal[data-delay="4"]{transition-delay:.4s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}
@media (max-width:1024px){
  .nav{display:none}
  .burger{display:flex}
  .header-inner .btn-sm{display:none}
  .about-grid,.split{grid-template-columns:1fr;gap:44px}
  .principles{grid-template-columns:1fr 1fr}
  .principle:nth-child(2){border-right:none}
  .principle{border-bottom:1px solid var(--line)}
  .svc-grid{grid-template-columns:1fr 1fr}
  .svc-card--tall{grid-row:auto}
  .svc-card--wide{grid-column:span 2}
  .steps{grid-template-columns:1fr 1fr}
  .svc-body{grid-template-columns:1fr}
  .svc-aside{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .section{padding:76px 0}
  .svc-grid{grid-template-columns:1fr}
  .svc-card--wide{grid-column:auto}
  .principles{grid-template-columns:1fr}
  .principle{border-right:none}
  .form-grid{grid-template-columns:1fr}
  .partner-cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-tags p{font-size:.68rem;line-height:1.9}
}
/* Knowledge articles use the existing design tokens. */
.article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.editorial h1{text-transform:none;overflow-wrap:anywhere}
.editorial .svc-body{grid-template-columns:minmax(0,1fr) 300px;gap:48px}
.editorial .svc-block p+p,.editorial .svc-block h3{margin-top:22px}
.editorial .svc-block h3{margin-bottom:12px;line-height:1.4}
.editorial .svc-block p,.editorial .check-list li{line-height:1.85}
.editorial .svc-block a,.editorial .tech-box p a{color:var(--cyan);text-underline-offset:4px}
.editorial .svc-block{scroll-margin-top:100px}
.editorial .aside-box h2{font-size:1.1rem;margin-bottom:16px}
.editorial .tech-box p{margin-bottom:22px}
.editorial .article-related{margin-top:48px}
@media(max-width:1024px){.editorial .svc-body{grid-template-columns:minmax(0,1fr)}.editorial .svc-aside{position:static;grid-row:1}}
@media(max-width:640px){.article-grid{grid-template-columns:minmax(0,1fr)}.editorial .page-hero{padding-bottom:48px}.editorial .svc-body{gap:30px}}