/* =========================================================
   УПВД Ермак — дизайн-система (редизайн 2026-09)
   Белый фон, синие кнопки, красный — фирменный акцент логотипа.
   Mobile-first от 320px, брейкпоинты 640 / 1024 / 1280.
   ========================================================= */

:root{
  --blue:#1668e0;
  --blue-dark:#1054bb;
  --blue-soft:#eaf2fe;
  --red:#d62828;
  --red-soft:#fdecec;
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#5b6b7f;
  --line:#e3e9f1;
  --bg:#ffffff;
  --surface:#f5f7fa;
  --ok:#0f8a52;
  --err:#c62828;
  --max:#6a3cf5;

  --r-sm:10px;
  --r:14px;
  --r-lg:20px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.06);
  --sh-2:0 6px 16px rgba(15,23,42,.08),0 2px 4px rgba(15,23,42,.04);
  --sh-3:0 18px 44px rgba(15,23,42,.16);

  --hdr-h:60px;
  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);

  /* z-index шкала */
  --z-hdr:60;--z-bar:70;--z-drawer:100;--z-light:120;--z-modal:130;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--hdr-h) + 16px)}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:400 16px/1.6 "Golos Text","Segoe UI",system-ui,-apple-system,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-dark)}
button{font:inherit;color:inherit}
a,button,summary{touch-action:manipulation}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.2;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid #7fb0ff;outline-offset:2px;border-radius:6px}
.muted{color:var(--muted)}
.ic{width:20px;height:20px;flex:0 0 auto}
.max-ic{flex:0 0 auto;border-radius:28%}
.accent{color:var(--red)}

.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:12px 16px;z-index:999}
.skip-link:focus{left:8px;top:8px;z-index:10000;box-shadow:var(--sh-2);border-radius:var(--r-sm)}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 16px}

/* ---------- Типографика ---------- */
.h1{font-size:clamp(28px,7vw,52px);line-height:1.08;letter-spacing:-.025em;font-weight:800}
.h2{font-size:clamp(24px,5vw,38px);line-height:1.15;letter-spacing:-.02em;font-weight:800}
.h3{font-size:clamp(18px,3.4vw,22px)}
.kicker{
  display:inline-block;margin:0 0 10px;font-size:13px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--red);
}
.lead{font-size:clamp(16px,2.4vw,19px);color:var(--ink-2)}
.section{padding:48px 0}
.section--surface{background:var(--surface)}
.section__head{max-width:780px;margin:0 auto 28px;text-align:center}
.section__head p:last-child{color:var(--muted);margin:0}

/* ---------- Кнопки ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:12px 20px;border:1px solid transparent;border-radius:var(--r-sm);
  font-weight:600;font-size:15.5px;line-height:1.2;cursor:pointer;text-align:center;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .12s var(--ease);
}
.btn .ic{width:19px;height:19px}
.btn--primary{background:var(--blue);color:#fff;box-shadow:0 6px 16px rgba(22,104,224,.25)}
.btn--primary:hover{background:var(--blue-dark);color:#fff}
.btn--ghost{background:#fff;color:var(--ink);border-color:#d3dce8}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn--max{background:#fff;color:var(--ink);border-color:#d3dce8}
.btn--max:hover{border-color:var(--max);color:var(--max);box-shadow:0 6px 16px rgba(106,60,245,.14)}
.btn--sm{min-height:44px;padding:9px 16px;font-size:14.5px}
.btn--lg{min-height:54px;padding:14px 24px;font-size:16.5px}
.btn--block{display:flex;width:100%}
.btn:active{transform:scale(.98)}
.btn[disabled]{opacity:.5;cursor:not-allowed;box-shadow:none}
.link-btn{
  display:inline-flex;align-items:center;gap:7px;min-height:44px;padding:0;border:0;background:none;
  color:var(--blue);font-weight:600;font-size:15px;cursor:pointer;
}
.link-btn:hover{color:var(--blue-dark)}
.link-btn .ic{width:18px;height:18px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--blue)}
.link-arrow .ic{width:18px;height:18px;transition:transform .2s var(--ease)}

/* ---------- Верхняя строка ---------- */
.topline{display:none;background:var(--ink);color:#cbd5e1;font-size:13px}
.topline__in{display:flex;align-items:center;gap:22px;min-height:34px}
.topline span,.topline a{display:inline-flex;align-items:center;gap:7px;color:#cbd5e1}
.topline a:hover{color:#fff}
.topline .ic{width:15px;height:15px;opacity:.8}
.topline__right:first-of-type{margin-left:auto}

/* ---------- Шапка ---------- */
.hdr{position:sticky;top:0;z-index:var(--z-hdr);background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hdr.is-stuck{box-shadow:var(--sh-2)}
.hdr__bar{display:flex;align-items:center;gap:10px;min-height:var(--hdr-h)}
.hdr__logo{flex:0 1 auto;min-width:0}
.hdr__logo img{max-width:100%}
.hdr__logo img{height:38px;width:auto}
.hdr__nav,.hdr__side{display:none}
.hdr__mob{display:flex;align-items:center;gap:4px;margin-left:auto}
.icon-btn{
  width:44px;height:44px;display:grid;place-items:center;border-radius:var(--r-sm);
  color:var(--ink);border:1px solid var(--line);background:#fff;
}
.icon-btn .ic{width:21px;height:21px}
.icon-btn--max{border-color:transparent;background:transparent}
.hdr__burger{
  width:44px;height:44px;border:0;background:transparent;border-radius:var(--r-sm);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.hdr__burger span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .2s}
.hdr__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hdr__burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hdr__burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.msg-btn{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 14px 0 9px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;color:var(--ink);
  font-weight:600;font-size:14.5px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.msg-btn:hover{border-color:var(--max);color:var(--max);box-shadow:0 4px 12px rgba(106,60,245,.14)}

/* ---------- Мобильное меню ---------- */
.drawer{position:fixed;inset:0;z-index:var(--z-drawer)}
.drawer__backdrop{position:absolute;inset:0;background:rgba(15,23,42,.55);opacity:0;transition:opacity .25s var(--ease)}
.drawer.is-open .drawer__backdrop{opacity:1}
.drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:min(88vw,360px);background:#fff;box-shadow:var(--sh-3);
  padding:14px 16px calc(16px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:2px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s var(--ease);
}
.drawer.is-open .drawer__panel{transform:translateX(0)}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer__top img{height:34px;width:auto}
.drawer__close{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);display:grid;place-items:center;cursor:pointer}
.drawer__panel > a{display:block;padding:13px 12px;border-radius:var(--r-sm);color:var(--ink);font-weight:600;font-size:17px}
.drawer__panel > a:hover,.drawer__panel > a:active{background:var(--surface);color:var(--blue)}
.drawer__foot{margin-top:auto;padding-top:18px;display:grid;gap:10px}
.drawer__phone{display:flex;align-items:center;gap:10px;justify-content:center;font-weight:700;font-size:19px;color:var(--ink);min-height:44px}
.drawer__phone .ic{color:var(--blue)}
.drawer__hint{margin:0;text-align:center;color:var(--muted);font-size:13px}

/* ---------- Первый экран ---------- */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(900px 480px at 85% 30%,#fdeeee 0%,rgba(253,238,238,0) 60%),
             linear-gradient(180deg,#f4f8fd 0%,#fff 100%);
  border-bottom:1px solid var(--line);
}
.hero__grid{display:grid;gap:8px;padding:22px 16px 28px}
.hero__kicker{
  display:inline-flex;line-height:1.3;align-items:center;gap:8px;margin:0 0 14px;padding:7px 12px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--ink-2);box-shadow:var(--sh-1);
}
.hero__kicker .ic{width:17px;height:17px;color:var(--ok)}
.hero h1{margin-bottom:14px}
.hero__lead{font-size:clamp(16px,2.4vw,19px);color:var(--ink-2);max-width:34em;margin-bottom:18px}
.hero__price{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;margin-bottom:18px}
.hero__price > span:first-child{font-size:17px;color:var(--ink-2)}
.hero__price b{font-size:clamp(28px,6vw,36px);color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.hero__price-note{font-size:14px;color:var(--muted)}
.hero__cta{display:flex;flex-direction:column;gap:10px}
.hero__cta--center{align-items:center}
.hero__trust{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:20px;font-size:14px;color:var(--ink-2);font-weight:500}
.hero__trust li{display:flex;align-items:center;gap:7px}
.hero__trust .ic{width:18px;height:18px;color:var(--blue)}
.hero__media{position:relative;max-width:360px;margin:8px auto 0;width:100%}
.hero__media img{width:100%;height:auto;mix-blend-mode:multiply}
.hero__tag{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-2);
  padding:6px 10px;line-height:1.15;display:flex;flex-direction:column;
}
.hero__tag b{font-size:16px;font-weight:800;color:var(--ink)}
.hero__tag span{font-size:11.5px;color:var(--muted)}
.hero__tag--a{left:0;top:6%}
.hero__tag--b{right:0;top:42%}
.hero__tag--c{left:6%;bottom:2%}

/* ---------- Цифры ---------- */
.facts{background:#fff;border-bottom:1px solid var(--line)}
.facts__grid{display:grid;grid-template-columns:repeat(2,1fr)}
.fact{padding:18px 12px;text-align:center;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.fact:nth-child(2n){border-right:0}
.fact:nth-child(n+3){border-bottom:0}
.fact b{display:block;font-size:clamp(20px,5vw,28px);font-weight:800;color:var(--ink);line-height:1.15}
.fact span{font-size:13px;color:var(--muted)}

/* ---------- Карточки каталога ---------- */
.cards{display:grid;grid-template-columns:1fr;gap:14px}
.card{
  position:relative;display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{box-shadow:var(--sh-2);border-color:#cddcf2}
.card__media{position:relative;display:block;background:linear-gradient(180deg,#f7f9fc,#eef2f7);aspect-ratio:16/10}
.card__media img{width:100%;height:100%;object-fit:contain;padding:12px;mix-blend-mode:multiply}
.card__badge{
  position:absolute;left:12px;top:12px;z-index:1;background:var(--blue-soft);color:var(--blue-dark);
  font-size:12px;font-weight:700;padding:5px 10px;border-radius:var(--r-pill);
}
.card__badge--hot{background:var(--red);color:#fff}
.card__body{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__title{font-size:19px;font-weight:800;margin:0}
.card__title a{color:var(--ink)}
.card__title a:hover{color:var(--blue)}
.card__descr{font-size:14px;color:var(--muted);margin:0}
.card__specs{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin:0}
.card__specs div{background:var(--surface);border-radius:var(--r-sm);padding:7px 10px}
.card__specs dt{font-size:12px;color:var(--muted)}
.card__specs dd{margin:0;font-weight:700;font-size:15px;font-variant-numeric:tabular-nums}
.card__price{font-size:24px;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;margin-top:auto}
.card__line{margin:0;font-size:14px;color:var(--muted)}
.card__actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.card__actions .btn{padding-left:10px;padding-right:10px}
.card--row{flex-direction:row;align-items:center}
.card--row .card__media{flex:0 0 112px;aspect-ratio:1/1;align-self:stretch}
.card--row .card__media img{padding:8px}
.card--row .card__body{padding:12px 14px;gap:4px}
.card--row .card__title{font-size:17px}
.card--row .card__price{font-size:19px}
.card--row .card__title a::after{content:"";position:absolute;inset:0}

/* ---------- Сравнение ---------- */
.compare{margin-top:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg)}
.compare summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:56px;padding:12px 18px;font-weight:700;font-size:16px;
}
.compare summary::-webkit-details-marker{display:none}
.compare summary::after,.faq__item summary::after{
  content:"";flex:0 0 auto;width:10px;height:10px;border-right:2px solid var(--blue);border-bottom:2px solid var(--blue);
  transform:rotate(45deg) translateY(-3px);transition:transform .2s var(--ease);
}
.compare[open] summary::after,.faq__item[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.compare__wrap{padding:0 10px 4px}
.compare__table{width:100%;border-collapse:collapse;font-size:13.5px;font-variant-numeric:tabular-nums;table-layout:fixed}
.compare__table th,.compare__table td{padding:9px 4px;border-top:1px solid var(--line);text-align:center;vertical-align:middle}
.compare__table thead th{border-top:0;font-size:13px}
.compare__table thead th a{color:var(--ink);font-weight:800}
.compare__table th[scope="row"]{text-align:left;font-weight:500;color:var(--muted);width:32%}
.compare__note{margin:0;padding:10px 18px 18px;font-size:13.5px;color:var(--muted)}

/* ---------- Преимущества ---------- */
.feats{display:grid;gap:12px}
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;display:flex;flex-direction:column;gap:8px}
.feat__ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue);margin-bottom:4px}
.feat__ic .ic{width:24px;height:24px}
.feat b{font-size:17px;line-height:1.3}
.feat > span:last-child{font-size:14.5px;color:var(--muted)}

/* ---------- Устройство ---------- */
.device{display:grid;gap:24px;align-items:center}
.device__list{counter-reset:d;display:grid;gap:10px;margin:0 0 22px}
.device__list li{counter-increment:d;position:relative;padding-left:40px;color:var(--ink-2);font-size:15px}
.device__list li::before{
  content:counter(d);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:50%;
  background:var(--blue-soft);color:var(--blue);font-weight:800;font-size:14px;display:grid;place-items:center;
}
.device__list b{color:var(--ink)}
.device__figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:10px;overflow:hidden}

/* ---------- Применение ---------- */
.use{display:grid;gap:20px;align-items:start}
.use__photo{margin:0;border-radius:var(--r-lg);overflow:hidden;background:#fff;border:1px solid var(--line)}
.use__photo img{width:100%}
.use__photo figcaption{padding:10px 14px;font-size:13.5px;color:var(--muted)}
.use__list{display:grid;gap:10px}
.use__list li{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px}
.use__list .ic{width:24px;height:24px;color:var(--red);margin-top:2px}
.use__list b{display:block;font-size:16px;margin-bottom:2px}
.use__list span{font-size:14px;color:var(--muted)}

/* ---------- Шаги и тендеры ---------- */
.steps{display:grid;gap:18px;margin-bottom:28px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 18px 18px}
.step__n{
  position:absolute;top:-14px;left:18px;width:32px;height:32px;border-radius:50%;background:var(--blue);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:15px;box-shadow:0 4px 10px rgba(22,104,224,.3);
}
.step b{display:block;margin:4px 0 4px;font-size:17px}
.step span{font-size:14.5px;color:var(--muted)}
.tender{display:grid;gap:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px}
.tender p{color:var(--ink-2)}
.tender__cta{display:flex;flex-direction:column;gap:10px}
.tender__logos{background:#fff;border-radius:var(--r);padding:10px;border:1px solid var(--line)}

/* ---------- Галерея и видео ---------- */
.media2{display:grid;gap:14px}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.gallery button{padding:0;border:1px solid var(--line);background:var(--surface);border-radius:var(--r-sm);overflow:hidden;cursor:pointer;aspect-ratio:4/3}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.gallery button:hover img{transform:scale(1.04)}
.lightbox{position:fixed;inset:0;z-index:var(--z-light);background:rgba(9,20,38,.92);display:grid;place-items:center;padding:16px}
.lightbox img{max-width:100%;max-height:86vh;object-fit:contain;border-radius:var(--r-sm)}
.lightbox__close{position:absolute;top:calc(12px + env(safe-area-inset-top));right:12px;width:48px;height:48px;border-radius:50%;border:0;background:rgba(255,255,255,.16);color:#fff;display:grid;place-items:center;cursor:pointer}

.video{position:relative;border-radius:var(--r-lg);overflow:hidden;background:#0b1626;aspect-ratio:16/9;border:1px solid var(--line)}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video__cover{position:absolute;inset:0;width:100%;height:100%;padding:0;border:0;background:#0b1626;cursor:pointer}
.video__cover img{width:100%;height:100%;object-fit:cover;opacity:.55}
.video__play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:72px;height:72px;border-radius:50%;
  background:var(--red);color:#fff;display:grid;place-items:center;box-shadow:0 10px 30px rgba(0,0,0,.4);
  transition:transform .2s var(--ease);
}
.video__cover:hover .video__play{transform:translate(-50%,-50%) scale(1.06)}
.video__play .ic{width:30px;height:30px;fill:currentColor;margin-left:4px}
.video__label{position:absolute;left:0;right:0;bottom:14px;text-align:center;color:#fff;font-weight:600;font-size:15px;text-shadow:0 1px 6px rgba(0,0,0,.5)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq{display:grid;gap:10px}
.faq__item{background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.faq__item[open]{border-color:#cddcf2;box-shadow:var(--sh-1)}
.faq__item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:14px;
  min-height:56px;padding:14px 18px;font-weight:700;font-size:16px;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item p{margin:0;padding:0 18px 18px;color:var(--ink-2);font-size:15px}

/* ---------- SEO-текст и статья ---------- */
.seo{display:grid;gap:24px;align-items:start}
.prose{font-size:16px;color:var(--ink-2);line-height:1.7}
.prose h2{color:var(--ink)}
.prose h3{color:var(--ink);font-size:19px;margin:26px 0 8px}
.prose ul{margin:0 0 16px}
.prose ul li{position:relative;padding-left:22px;margin-bottom:7px}
.prose ul li::before{content:"";position:absolute;left:5px;top:11px;width:7px;height:7px;border-radius:50%;background:var(--blue)}
.prose strong{color:var(--ink)}
.js .prose__fold{display:none}
.prose.is-open .prose__fold{display:block}
.prose__toggle{display:none}
.js .prose__toggle{display:inline-flex;margin-top:4px}

/* ---------- Карточки статей ---------- */
.acards{display:grid;gap:16px}
.acard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;color:var(--ink);transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.acard:hover{color:var(--ink);box-shadow:var(--sh-2);border-color:#cddcf2}
.acard:hover .link-arrow .ic{transform:translateX(3px)}
.acard__img{display:block;aspect-ratio:16/9;background:var(--surface);overflow:hidden}
.acard__img img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.acard:hover .acard__img img{transform:scale(1.03)}
.acard__body{display:flex;flex-direction:column;gap:8px;padding:16px 18px 18px;flex:1}
.acard__meta{font-size:12.5px;font-weight:600;color:var(--red);text-transform:uppercase;letter-spacing:.06em}
.acard__title{font-size:18px;line-height:1.3;font-weight:800}
.acard__text{font-size:14.5px;color:var(--muted);flex:1}
.acard .link-arrow{margin-top:4px}

/* ---------- Таблицы в статьях ---------- */
.art-table{margin:0 0 18px;background:#fff;border:1px solid var(--line);border-radius:var(--r);border-collapse:separate;border-spacing:0;overflow:hidden}
.art-table thead th{background:var(--surface);color:var(--ink)}
.art-table--text td{text-align:left;font-size:14px;line-height:1.45;vertical-align:top}
.art-table--text th[scope="row"]{width:25%;vertical-align:top}
.prose .compare__wrap{padding:0}

/* ---------- Формы ---------- */
.form{display:grid;gap:14px}
.form__row{display:grid;gap:14px}
.field{display:grid;gap:6px}
.field label{font-size:14px;font-weight:600;color:var(--ink-2)}
.req{color:var(--err)}
.field input,.field textarea{
  width:100%;min-height:50px;padding:12px 14px;border:1px solid #cfd8e3;border-radius:var(--r-sm);
  background:#fff;color:var(--ink);font:inherit;font-size:16px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{min-height:92px;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,104,224,.16)}
.field input::placeholder,.field textarea::placeholder{color:#94a3b8}
.field__help{margin:0;font-size:13px;color:var(--muted)}
.field__err{margin:0;font-size:13px;color:var(--err);font-weight:500}
.field.is-invalid input{border-color:var(--err);box-shadow:0 0 0 3px rgba(198,40,40,.12)}
.form__note{margin:0;font-size:12.5px;color:var(--muted);text-align:center}
.form__result:empty{display:none}
.form__result{font-size:14px}
.form__result .alert{padding:12px 14px;border-radius:var(--r-sm);border:1px solid transparent;margin:0}
.form__result .alert-success{background:#e7f6ed;border-color:#b9e3c9;color:var(--ok)}
.form__result .alert-danger{background:#fdeceb;border-color:#f6c9c6;color:var(--err)}

/* ---------- Контакты ---------- */
.contacts{background:var(--surface);border-top:1px solid var(--line);padding:48px 0}
.contacts__grid{display:grid;gap:28px}
.contacts__lead{color:var(--ink-2);max-width:40em}
.contacts__list{display:grid;gap:14px;margin:0 0 22px}
.contacts__list li{display:flex;gap:12px;align-items:flex-start;font-size:16px}
.contacts__list .ic{color:var(--blue);margin-top:3px}
.contacts__list a{color:var(--ink);font-weight:700}
.contacts__list a:hover{color:var(--blue)}
.contacts__list .muted{display:block;font-size:13px;font-weight:400}
.contacts__msg{display:flex;flex-direction:column;gap:10px}
.contacts__form{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.contacts__form > .muted{font-size:14px;margin-bottom:16px}

/* ---------- Подвал ---------- */
.foot{background:#0d1726;color:#c3cedb;padding:36px 0 22px;font-size:14.5px}
.foot a{color:#c3cedb}
.foot a:hover{color:#fff}
.foot__grid{display:grid;gap:26px}
.foot__brand img{height:40px;width:auto;margin-bottom:12px;background:#fff;border-radius:8px;padding:4px 8px;box-sizing:content-box}
.foot__brand p{margin:0;color:#8fa1b6;max-width:34em}
.foot h4{color:#fff;font-size:15px;margin:0 0 10px}
.foot__nav,.foot__contacts{display:flex;flex-direction:column;gap:4px;align-items:flex-start}
.foot__nav a,.foot__contacts a{min-height:32px;display:inline-flex;align-items:center}
.foot__phone{font-size:20px;font-weight:700;color:#fff!important}
.foot__max{gap:8px}
.foot__contacts .muted{color:#8fa1b6;margin:6px 0 0;font-size:13px}
.foot__bottom{display:flex;flex-direction:column;gap:6px;margin-top:26px;padding-top:16px;border-top:1px solid rgba(255,255,255,.1);color:#8fa1b6;font-size:12.5px}

/* ---------- Модальное окно ---------- */
.modal{position:fixed;inset:0;z-index:var(--z-modal);display:grid;place-items:end center}
/* display у оверлеев перебивает [hidden] браузера — возвращаем явно,
   иначе невидимый слой накрывает страницу и съедает все клики. */
.modal[hidden],.drawer[hidden]{display:none!important}
.modal__backdrop{position:absolute;inset:0;background:rgba(9,20,38,.6);opacity:0;transition:opacity .25s var(--ease)}
.modal.is-open .modal__backdrop{opacity:1}
.modal__box{
  position:relative;width:100%;max-width:480px;background:#fff;border-radius:var(--r-lg) var(--r-lg) 0 0;
  padding:22px 18px calc(22px + env(safe-area-inset-bottom));box-shadow:var(--sh-3);max-height:92vh;overflow-y:auto;
  transform:translateY(100%);transition:transform .3s var(--ease);
}
.modal.is-open .modal__box{transform:translateY(0)}
.modal__box .h3{padding-right:48px}
.modal__close{position:absolute;right:10px;top:10px;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);display:grid;place-items:center;cursor:pointer}
.modal__lead{font-size:14px;margin-bottom:16px}

/* ---------- Хлебные крошки ---------- */
.crumbs{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:13.5px;color:var(--muted);padding:12px 0}
.crumbs a{color:var(--muted);min-height:32px;display:inline-flex;align-items:center}
.crumbs a:hover{color:var(--blue)}
.crumbs span[aria-current]{color:var(--ink-2)}

/* ---------- Страница товара ---------- */
.prod{padding:0 0 32px}
.prod__grid{display:grid;gap:22px}
.prod__grid > *,.hero__grid > *,.seo > *,.descr > *,.device > *,.use > *,.article__grid > *{min-width:0}
#specs,#descr,#kit,#video,#others{scroll-margin-top:calc(var(--hdr-h) + 60px)}
.prod__media{position:relative;background:linear-gradient(180deg,#f7f9fc,#eef2f7);border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;aspect-ratio:1/1;display:grid;place-items:center}
.prod__media img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply}
.thumbs{display:flex;gap:8px;margin-top:10px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.thumb{flex:0 0 68px;height:68px;padding:3px;border:2px solid var(--line);background:#fff;border-radius:var(--r-sm);cursor:pointer;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;border-radius:6px}
.thumb.is-active{border-color:var(--blue)}
.prod__title{font-size:clamp(28px,6.4vw,42px);font-weight:800;letter-spacing:-.02em;margin:0 0 8px}
.prod__sub{color:var(--ink-2);margin:0 0 16px}
.keyspecs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:0 0 18px}
.keyspecs li{background:var(--surface);border-radius:var(--r-sm);padding:10px 6px;text-align:center;line-height:1.15}
.keyspecs b{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums}
.keyspecs span{font-size:12.5px;color:var(--muted)}
.prod__buybox{border:1px solid var(--line);border-radius:var(--r-lg);padding:16px;box-shadow:var(--sh-1);margin-bottom:18px}
.prod__price{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.prod__price b{font-size:clamp(30px,6.4vw,38px);font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stock{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ok);background:#e9f7ef;border-radius:var(--r-pill);padding:5px 12px}
.stock .ic{width:16px;height:16px}
.prod__buy{display:grid;gap:10px}
.prod__alt{display:flex;flex-wrap:wrap;gap:0 20px;margin-top:6px}
.prod__perks{display:grid;gap:10px}
.prod__perks li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.prod__perks .ic{width:20px;height:20px;color:var(--blue);margin-top:2px}
.prod__perks b{color:var(--ink)}

.tabs{position:sticky;top:var(--hdr-h);z-index:50;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tabs__in{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.tabs__in::-webkit-scrollbar{display:none}
.tabs a{flex:0 0 auto;display:flex;align-items:center;min-height:48px;padding:0 12px;color:var(--ink-2);font-weight:600;font-size:14.5px;border-bottom:2px solid transparent}
.tabs a:hover,.tabs a.is-active{color:var(--blue);border-bottom-color:var(--blue)}

.specs{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:22px}
.spec{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px;display:flex;flex-direction:column;gap:4px}
.spec .ic{width:24px;height:24px;color:var(--blue);margin-bottom:4px}
.spec span{font-size:13px;color:var(--muted);line-height:1.35}
.spec b{font-size:17px}
.spectable{display:grid;gap:14px}
.spectable__group{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.spectable__group h3{margin:0;padding:12px 16px;background:var(--surface);font-size:16px}
.spectable dl{margin:0}
.spectable dl div{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:11px 16px;border-top:1px solid var(--line);font-size:15px}
.spectable dt{color:var(--muted)}
.spectable dd{margin:0;font-weight:600;color:var(--ink)}

.descr{display:grid;gap:24px;align-items:start}
.descr__img{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:10px}
.descr__img figcaption{font-size:13.5px;color:var(--muted);text-align:center;padding-top:6px}
.kit{display:grid;gap:10px}
.kit li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--ink-2);background:var(--surface);border-radius:var(--r);padding:12px 14px}
.kit .ic{width:20px;height:20px;color:var(--ok);margin-top:2px}
.video-wrap{max-width:900px}


/* ---------- О компании ---------- */
.about-hero{padding:8px 0 40px}
.about-hero__grid{display:grid;gap:24px;align-items:center}
.about-hero__img{border-radius:var(--r-lg);aspect-ratio:4/3;object-fit:cover;width:100%}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 14px;text-align:center}
.stat b{display:block;font-size:clamp(26px,6vw,36px);font-weight:800;color:var(--blue);line-height:1.1}
.stat span{font-size:13.5px;color:var(--muted)}

/* ---------- Статья ---------- */
.article{padding:0 0 48px}
.article__grid{display:grid;gap:28px}
.article__head{margin-bottom:18px}
.article__cover{border-radius:var(--r-lg);aspect-ratio:16/9;object-fit:cover;width:100%;margin-bottom:22px}
.toc{background:var(--surface);border-radius:var(--r-lg);padding:16px 18px;margin-bottom:26px}
.toc b{display:block;margin-bottom:6px}
.toc ol{list-style:decimal;padding-left:20px;display:grid;gap:2px}
.toc a{display:inline-block;padding:5px 0}
.prose--article h2{font-size:clamp(22px,4vw,28px);margin:34px 0 12px}
.note{background:var(--red-soft);border-left:4px solid var(--red);border-radius:0 var(--r) var(--r) 0;padding:12px 16px;margin:0 0 16px;color:var(--ink)}
.cta-inline{display:flex;flex-direction:column;gap:12px;background:var(--blue-soft);border-radius:var(--r-lg);padding:18px;margin:10px 0 8px}
.cta-inline b{display:block;color:var(--ink);font-size:17px}
.cta-inline span{font-size:14.5px}
.side-card{display:grid;gap:10px;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;box-shadow:var(--sh-1)}
.side-card img{mix-blend-mode:multiply;max-width:260px;margin:0 auto}
.side-card b{font-size:19px}
.side-card__price{font-size:22px;font-weight:800}

/* ---------- 404 ---------- */
.e404{text-align:center;padding:64px 0}
.e404 > .wrap > b{display:block;font-size:84px;font-weight:800;color:var(--red);line-height:1}

/* =========================================================
   Планшет
   ========================================================= */
@media (min-width:640px){
  .section{padding:64px 0}
  .hero__cta{flex-direction:row;flex-wrap:wrap}
  .hero__grid{padding:36px 16px 44px}
  .hero__tag{padding:8px 14px}
  .hero__tag b{font-size:20px}
  .hero__tag span{font-size:12.5px}
  .facts__grid{grid-template-columns:repeat(4,1fr)}
  .fact{border-bottom:0}
  .fact:nth-child(2n){border-right:1px solid var(--line)}
  .fact:last-child{border-right:0}
  .cards{grid-template-columns:repeat(2,1fr);gap:18px}
  .acards{grid-template-columns:repeat(2,1fr);gap:18px}
  .card__media{aspect-ratio:4/3}
  .compare__table{font-size:15px}
  .compare__table th,.compare__table td{padding:11px 8px}
  .feats{grid-template-columns:repeat(2,1fr);gap:14px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .tender__cta{flex-direction:row;flex-wrap:wrap}
  .use__list{grid-template-columns:repeat(2,1fr)}
  .form__row{grid-template-columns:1fr 1fr}
  .contacts__msg{flex-direction:row;flex-wrap:wrap}
  .specs{grid-template-columns:repeat(3,1fr)}
  .spectable{grid-template-columns:1fr 1fr}
  .kit{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:repeat(4,1fr)}
  .foot__grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .foot__bottom{flex-direction:row;justify-content:space-between}
  .contacts__form{padding:26px}
  .cta-inline{flex-direction:row;align-items:center;justify-content:space-between}
  .modal{place-items:center}
  .modal__box{border-radius:var(--r-lg);transform:translateY(24px) scale(.98);opacity:0;transition:transform .25s var(--ease),opacity .25s var(--ease);padding:26px}
  .modal.is-open .modal__box{transform:none;opacity:1}
  .card--row .card__media{flex-basis:130px}
}

/* =========================================================
   Десктоп
   ========================================================= */
@media (min-width:1024px){
  :root{--hdr-h:76px}
  .section{padding:84px 0}
  .wrap{padding:0 24px}
  .topline{display:block}

  .hdr__bar{gap:16px}
  .hdr__logo{flex:0 0 auto}
  .hdr__logo img{height:44px;max-width:none}
  .hdr__nav .nav-opt,.hdr__phone-hint,.msg-btn__txt{display:none}
  .msg-btn{padding:0 8px}
  .hdr__cta{white-space:nowrap}
  .hero h1{font-size:clamp(34px,3.5vw,50px)}
  .hdr__mob{display:none}
  .hdr__nav{display:flex;gap:2px}
  .hdr__nav a{padding:10px 8px;border-radius:var(--r-sm);color:var(--ink);font-weight:500;font-size:14.5px;white-space:nowrap;transition:background-color .2s var(--ease),color .2s var(--ease)}
  .hdr__nav a:hover{background:var(--surface);color:var(--blue)}
  .hdr__nav a.is-active{color:var(--blue);background:var(--blue-soft)}
  .hdr__side{display:flex;align-items:center;gap:10px;margin-left:auto}
  .hdr__phone{display:block;text-align:right;color:var(--ink);white-space:nowrap}
  .hdr__phone-num{display:block;font-weight:800;font-size:17px;letter-spacing:-.01em}
  .hdr__phone-hint{font-size:12px;color:var(--muted)}
  .hdr__phone:hover .hdr__phone-num{color:var(--blue)}


  .hero__grid{grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:64px 24px 72px}
  .hero__media{order:0;max-width:none}
  .hero__tag--a{left:-2%;top:10%}
  .hero__tag--b{right:-2%;top:44%}
  .hero__tag--c{left:8%;bottom:4%}

  .cards{grid-template-columns:repeat(4,1fr);gap:18px}
  .card__actions{grid-template-columns:1fr}
  .cards--3{grid-template-columns:repeat(3,1fr)}
  .acards{grid-template-columns:repeat(3,1fr);gap:22px}
  .acards--2{grid-template-columns:repeat(2,1fr);max-width:900px}
  .feats{grid-template-columns:repeat(3,1fr);gap:18px}
  .feat{padding:24px}
  .device{grid-template-columns:.9fr 1.1fr;gap:48px}
  .use{grid-template-columns:.9fr 1.1fr;gap:28px}
  .steps{grid-template-columns:repeat(4,1fr);gap:18px}
  .tender{grid-template-columns:1fr 1.15fr;align-items:center;padding:32px;gap:32px}
  .media2{grid-template-columns:1fr 1fr;align-items:center;gap:20px}
  .seo{max-width:900px}
  
  .contacts{padding:84px 0}
  .contacts__grid{grid-template-columns:1fr 1fr;gap:56px;align-items:start}
  .foot__grid{grid-template-columns:1.5fr 1fr 1.1fr 1fr;gap:40px}

  .prod__grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:start}
  .prod__gallery{position:sticky;top:calc(var(--hdr-h) + 20px)}
  .thumb{flex-basis:80px;height:80px}
  .prod__buy{grid-template-columns:1fr 1fr}
  .specs{grid-template-columns:repeat(6,1fr)}
  .descr{grid-template-columns:1.2fr 1fr;gap:48px}
  .descr__img{position:sticky;top:calc(var(--hdr-h) + 70px)}
  .kit{grid-template-columns:repeat(3,1fr)}

  .about-hero{padding:16px 0 64px}
  .about-hero__grid{grid-template-columns:1.1fr .9fr;gap:48px}
  .article__grid{grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
  .article__main{max-width:780px}
  .article__side{position:sticky;top:calc(var(--hdr-h) + 20px)}
  .prose--article{font-size:17px}
}

@media (min-width:1280px){
  .hdr__nav .nav-opt,.hdr__phone-hint{display:block}
  .msg-btn__txt{display:inline}
  .msg-btn{padding:0 14px 0 9px}
  .hdr__bar{gap:20px}
}
@media (min-width:1400px){
  .hdr__nav a{padding:10px 13px;font-size:15px}
}

/* ---------- Уважение к reduced-motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ---------- Появление секций ---------- */
.js .reveal{opacity:0;transform:translateY(16px)}
.js .reveal.is-in{opacity:1;transform:none;transition:opacity .5s var(--ease),transform .5s var(--ease)}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none}}

body.is-locked{overflow:hidden}