:root{
  --bg: #0B1417;
  --bg2:#0D1F22;
  --card:#0F2327;
  --text:#0F172A;
  --muted:#4B5563;

  --paper:#F7F8FA;
  --paper2:#EEF2F5;

  --gold:#D1A954;
  --gold2:#E6C57A;

  --teal:#0AA6B5;
  --teal2:#13C2CE;

  --radius:18px;
  --shadow: 0 18px 50px rgba(0,0,0,.12);
  --shadow2: 0 10px 26px rgba(0,0,0,.10);
  --line: rgba(17,24,39,.12);

  --font: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:var(--font);background:var(--paper);color:var(--text)}
a{color:inherit;text-decoration:none}
.container{width:min(1120px, calc(100% - 32px)); margin:0 auto}

.contacts-block {
  text-align: left;
  font-size: 13px;
  color: #a0a3aa;
  line-height: 1.9;
}

.contact-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

/* TOPBAR */
.topbar{
  position:sticky; top:0; z-index:50;
  background: rgba(11,20,23,.86);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar__inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:12px 0;
}
.brand{display:flex; align-items:center; gap:10px}
.brand__logo{
  width:260px; height:60px;
  border-radius:0;
  box-shadow: none;
  filter: drop-shadow(0 6px 14px rgba(0,0,0,.28));
  background: transparent;
  display:block;
}
.brand__name{color:#fff;font-weight:700;letter-spacing:.3px}

.nav{display:flex; gap:18px; align-items:center}
.nav__link{
  color:rgba(255,255,255,.82);
  font-weight:600;
  font-size:14px;
  padding:10px 10px;
  border-radius:12px;
}
.nav__link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav__link.is-active{color:#fff;background:rgba(209,169,84,.14); border:1px solid rgba(209,169,84,.25)}

.topbar__right{display:flex; align-items:center; gap:12px}
.lang{display:flex; gap:6px; align-items:center}
.lang__btn{
  font-size:12px;
  padding:8px 10px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.86);
}
.lang__btn:hover{border-color:rgba(255,255,255,.22)}
.lang__btn.is-active{border-color:rgba(209,169,84,.55); color:#fff; background:rgba(209,169,84,.14)}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  border-radius:14px;
  padding:12px 16px;
  font-weight:700;
  border:1px solid transparent;
  box-shadow:none;
  transition:.18s ease;
  cursor:pointer;
}
.btn--primary{
  background: linear-gradient(135deg, var(--gold), var(--gold2));
  color:#0B1417;
  box-shadow: 0 12px 26px rgba(209,169,84,.25);
}
.btn--primary:hover{transform: translateY(-1px); box-shadow: 0 16px 32px rgba(209,169,84,.28)}
.btn--ghost{
  background: transparent;
  border:1px solid rgba(209,169,84,.35);
  color:#fff;
}
.btn--ghost:hover{background: rgba(209,169,84,.12)}
.btn--invert{
  background:#fff;
  color:#0B1417;
  border:1px solid rgba(255,255,255,.35);
}
.btn--invert:hover{transform: translateY(-1px); box-shadow: 0 14px 30px rgba(0,0,0,.18)}

.burger{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background:transparent;
}
.burger span{display:block;height:2px;margin:6px 10px;background:rgba(255,255,255,.85);border-radius:4px}

/* mobile nav */
.mobileNav{display:none}
.nav-open .mobileNav{display:block}
.mobileNav__inner{
  padding:10px 0 14px;
  display:flex; flex-direction:column;
  gap:6px;
}
.mobileNav__inner .nav__link{padding:12px 12px}

/* HERO */
.hero{
  position:relative;
  background: radial-gradient(1200px 600px at 20% 30%, rgba(19,194,206,.22), transparent 60%),
              radial-gradient(900px 500px at 80% 40%, rgba(209,169,84,.14), transparent 55%),
              linear-gradient(180deg, #0B1417 0%, #0D1F22 100%);
  color:#fff;
  overflow:hidden;
}
.hero__bg{
  position:absolute; inset:-2px;
  background:
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px) 0 0/ 40px 40px,
    linear-gradient(0deg, rgba(255,255,255,.03) 1px, transparent 1px) 0 0/ 40px 40px;
  opacity:.35;
  pointer-events:none;
}
.hero__inner{
  position:relative;
  display:grid;
  grid-template-columns: 1.3fr .9fr;
  gap:26px;
  padding:42px 0 40px;
}
.hero h1{
  margin:0 0 12px;
  font-size: clamp(30px, 3.6vw, 48px);
  line-height:1.05;
  letter-spacing:-.6px;
}
.hero p{
  margin:0 0 18px;
  max-width: 56ch;
  color: rgba(255,255,255,.86);
  line-height:1.55;
}
.hero__actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:10px}
.hero__mini{
  margin-top:22px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:12px;
}
.miniCard{
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
  border-radius: var(--radius);
  padding:14px 14px;
}
.miniCard__k{font-weight:800; color: rgba(255,255,255,.95); margin-bottom:4px}
.miniCard__v{font-size:13px; color: rgba(255,255,255,.80); line-height:1.35}

.logoCard{
  border-radius: 22px;
  background: rgba(11,20,23,.35);
  border: 1px solid rgba(209,169,84,.18);
  box-shadow: 0 26px 60px rgba(0,0,0,.28);
  padding:18px;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  min-height: 340px;
}
.logoCard img{
  width:min(360px, 100%);
  height:auto;
  border-radius:18px;
  box-shadow: 0 18px 40px rgba(0,0,0,.35);
}
.logoCard__cap{
  margin-top:12px;
  font-weight:700;
  letter-spacing:.2px;
  color: rgba(255,255,255,.85);
}

/* SECTIONS */
.section{padding:10px 0}
.section--tint{background: linear-gradient(180deg, var(--paper2), var(--paper))}
.section__head{margin-bottom:22px}
.section__head.center{text-align:center}
.rule{
  width:140px;height:3px;border-radius:99px;
  background: linear-gradient(90deg, var(--gold), var(--teal2));
  margin:0 auto 14px;
}
.section h2{
  margin:0 0 8px;
  font-size: clamp(26px, 3vw, 40px);
  letter-spacing:-.3px;
}
.section p{margin:0;color:var(--muted);line-height:1.55}

/* GRID blocks */
.grid4{
  margin-top:24px;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:14px;
}
.pillCard{
  background:#fff;
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow2);
  padding:16px;
}
.pillCard__icon{font-size:22px}
.pillCard__title{font-weight:800;margin:8px 0 6px}
.pillCard__text{color:var(--muted);font-size:14px;line-height:1.45}

.cards5{
  margin-top:24px;
  display:grid;
  grid-template-columns: repeat(5, 1fr);
  gap:14px;
  overflow:auto;
  padding-bottom:8px;
}
.serviceCard{
  min-width:220px;
  background:#fff;
  border:1px solid var(--line);
  border-radius: 20px;
  padding:18px;
  box-shadow: var(--shadow2);
  transition:.18s ease;
}
.serviceCard:hover{transform: translateY(-2px); box-shadow: var(--shadow)}
.serviceCard.is-feature{
  background: linear-gradient(180deg, rgba(19,194,206,.10), #fff);
  border-color: rgba(19,194,206,.25);
}
.serviceCard__title{font-weight:900;font-size:18px;margin:0 0 8px}
.serviceCard__text{color:var(--muted);font-size:14px;line-height:1.45}
.serviceCard__btn{
  margin-top:12px;
  font-weight:800;
  color:#0D1F22;
  display:inline-block;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid rgba(209,169,84,.35);
  background: rgba(209,169,84,.10);
}

/* Accordion */
.acc{max-width: 860px; margin: 18px auto 0}
.acc__item{
  background:#fff;
  border:1px solid var(--line);
  border-radius: 18px;
  overflow:hidden;
  margin-bottom:10px;
  box-shadow: var(--shadow2);
}
.acc__q{
  width:100%;
  text-align:left;
  background:transparent;
  border:0;
  padding:16px 16px;
  font-family:var(--font);
  font-weight:800;
  display:flex;
  justify-content:space-between;
  align-items:center;
  cursor:pointer;
}
.acc__ico{opacity:.7}
.acc__a{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease;
  padding:0 16px;
  color:var(--muted);
  line-height:1.55;
}
.acc__item.is-open .acc__a{
  padding:0 16px 16px;
  max-height: 260px;
}

/* Articles */
.articles{
  margin-top:22px;
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.articleCard{
  background:#fff;
  border:1px solid var(--line);
  border-radius: 22px;
  overflow:hidden;
  box-shadow: var(--shadow2);
  transition:.18s ease;
}
.articleCard:hover{transform: translateY(-2px); box-shadow: var(--shadow)}
.articleCard__img{
  height:170px;
  background:
    radial-gradient(700px 220px at 30% 10%, rgba(19,194,206,.32), transparent 55%),
    radial-gradient(700px 240px at 70% 40%, rgba(209,169,84,.18), transparent 60%),
    linear-gradient(135deg, #0D1F22, #0B1417);
}
.articleCard__img.is-2{background:
  radial-gradient(700px 220px at 30% 10%, rgba(209,169,84,.24), transparent 55%),
  radial-gradient(700px 240px at 70% 40%, rgba(19,194,206,.22), transparent 60%),
  linear-gradient(135deg, #0D1F22, #0B1417);
}
.articleCard__img.is-3{background:
  radial-gradient(700px 220px at 30% 10%, rgba(19,194,206,.22), transparent 55%),
  radial-gradient(700px 240px at 70% 40%, rgba(255,255,255,.10), transparent 60%),
  linear-gradient(135deg, #0D1F22, #0B1417);
}
.articleCard__body{padding:16px}
.articleCard__tag{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  padding:6px 10px;
  border-radius:999px;
  background: rgba(19,194,206,.10);
  border:1px solid rgba(19,194,206,.20);
  color:#0D1F22;
}
.articleCard__title{margin:10px 0 6px;font-weight:900}
.articleCard__text{margin:0;color:var(--muted);font-size:14px;line-height:1.45}
.articleCard__btn{
  margin-top:12px;
  display:inline-flex;
  font-weight:900;
  padding:10px 12px;
  border-radius:14px;
  background: rgba(209,169,84,.10);
  border:1px solid rgba(209,169,84,.30);
}
.step-meta{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:15px;
    margin:20px 0;
}

.step-meta div{
    background:#f8f9fb;
    border:1px solid #e3e8ef;
    border-radius:8px;
    padding:15px;
}

.step-meta strong{
    display:block;
    margin-bottom:8px;
    color:#2c3e50;
    font-size:15px;
}

/* CTA band like Sobel */
.ctaBand{
  background: linear-gradient(90deg, rgba(19,194,206,.18), rgba(209,169,84,.10)),
              linear-gradient(180deg, #0B1417, #0D1F22);
  color:#fff;
  padding:42px 0;
}
.ctaBand__inner{display:grid;grid-template-columns: 1.1fr 1.2fr auto; gap:14px; align-items:center}
.ctaBand__title{font-size:26px;font-weight:900}
.ctaBand__text{color:rgba(255,255,255,.86);line-height:1.45}

/* pages */
.pageHead{
    background:linear-gradient(180deg,#0B1417,#0D1F22);
    color:#fff;
    padding:10px 0 10px;
}

.pageHead h1{
    margin:0;
    font-size:clamp(20px,2.0vw,22px);
    line-height:1.2;
}

.pageHead p{
    margin:0;
    color:rgba(255,255,255,.85);
    max-width:70ch;
    line-height:1.5;
	letter-spacing: -0.7px;
}

@media (max-width:768px){

.pageHead{
    padding:10px 0 10px;
}

.pageHead h1{
    font-size:20px,2.0vw,22px);
    line-height:1.2;
}

}

.grid2{display:grid;grid-template-columns: 1fr 1fr; gap:14px; margin-top:18px}
.box{
  background:#fff;
  border:1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow2);
  padding:18px;
}
.box h3{margin:0 0 10px}
.list{margin:0;padding-left:18px;color:var(--muted);line-height:1.55}
.link{font-weight:900; color:#0D1F22}
.hint{margin-top:10px;color:var(--muted);font-size:13px}

/* Footer */
.footer{
  background:#0B1417;
  color:rgba(255,255,255,.85);
  padding:28px 0;
  border-top: 1px solid rgba(255,255,255,.06);
}
.footer__inner{display:flex; align-items:center; justify-content:space-between; gap:18px; flex-wrap:wrap}
.footer__brand{display:flex; align-items:center; gap:12px}
.footer__logo{width:204,4px;height:47px;border-radius:12px}
.footer__name{font-weight:900;color:#fff}
.footer__note{font-size:13px;color:rgba(255,255,255,.72)}
.footer__links{display:flex; gap:14px}
.footer__links a{color:rgba(255,255,255,.78)}
.footer__links a:hover{color:#fff}
.footer__meta{font-size:13px;color:rgba(255,255,255,.65)}

/* responsive */
@media (max-width: 980px){
  .nav{display:none}
  .burger{display:inline-flex;flex-direction:column;justify-content:center}
  .mobileNav{display:none}
  .hero__inner{grid-template-columns: 1fr; padding:44px 0}
  .hero__mini{grid-template-columns: 1fr}
  .grid4{grid-template-columns: 1fr 1fr}
  .articles{grid-template-columns: 1fr}
  .ctaBand__inner{grid-template-columns: 1fr; text-align:center}
}
@media (max-width: 520px){
  .grid4{grid-template-columns: 1fr}
  .grid2{grid-template-columns: 1fr}
}
@media (max-width:768px){

.hero__inner{
    padding:34px 0 32px;
}

.hero h1{
    font-size:34px;
    line-height:1.12;
}

}
/* ==========================================================
   ARTICLE DETAILS
   ========================================================== */

details{

    margin:18px 0;

    background:#fff;

    border:1px solid var(--line);

    border-radius:18px;

    overflow:hidden;

    box-shadow:var(--shadow2);

    transition:.2s;

}

details:hover{

    box-shadow:var(--shadow);

}

details[open]{

    border-color:rgba(209,169,84,.35);

}

/* заголовок */

details summary{

    list-style:none;

    cursor:pointer;

    padding:22px 24px;

    font-size:22px;

    font-weight:800;

    color:#0F172A;

    background:#fff;

    transition:.2s;

    user-select:none;

    border-bottom:1px solid transparent;

}

details summary:hover{

    background:#fcfcfc;

}

details[open] summary{

    border-bottom:4px solid var(--gold);

    background:#fcfcf8;

}
details[open] > *:not(summary){
    margin-top:12px;
}

/* убираем стандартную стрелку */

details summary::-webkit-details-marker{

    display:none;

}

details summary::marker{

    content:"";

}

/* контент */

details > *:not(summary){

    padding-left:24px;

    padding-right:24px;

}

details p{

    line-height:1.8;

    color:var(--muted);

}

details p:last-child{

    margin-bottom:28px;

}