/* Steel Groups — дизайн-система сайта. Один файл, без внешних библиотек. */
:root{
  --o:#F97316; --o-d:#EA6A0B; --o-l:#FB923C; --o-bg:#FFF7ED; --o-br:#FED7AA;
  --ink:#111827; --ink2:#374151; --ink3:#6B7280; --ink4:#9CA3AF;
  --line:#E9EDF2; --line2:#F1F4F8; --soft:#F7F9FB; --bg:#FAFBFC;
  --ok:#16A34A; --warn:#C98A00; --blue:#2563EB;
  --wrap:1520px; --r:22px; --r-s:14px; --r-xs:10px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 1px 2px rgba(16,24,40,.04),0 18px 40px -26px rgba(16,24,40,.22);
  --sh-3:0 2px 4px rgba(16,24,40,.04),0 34px 64px -30px rgba(16,24,40,.28);
  --ease:cubic-bezier(.22,.8,.24,1);
  --f:"Inter",-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",system-ui,Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;color-scheme:dark}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--f);font-size:15.5px;line-height:1.6;
  -webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums}
img{max-width:100%;display:block}
a{color:var(--o-d);text-decoration:none}
a:hover{text-decoration:none}
button,input,select,textarea{font-family:inherit}
select option{background:#0b151a;color:#eef2f4}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 40px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- Шапка ---------- */
.topbar{background:#fff;border-bottom:1px solid var(--line);font-size:13px;color:var(--ink3)}
.topbar .wrap{display:flex;flex-wrap:wrap;gap:6px 24px;align-items:center;justify-content:space-between;
  padding-top:9px;padding-bottom:9px}
.topbar a{color:var(--ink2)}
.topbar a:hover{color:var(--o-d)}
header.site{background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
header.site .wrap{display:flex;align-items:center;gap:20px;padding-top:12px;padding-bottom:12px}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:19.5px;color:var(--ink);
  letter-spacing:-.02em;flex:0 0 auto;white-space:nowrap}
.logo .mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(160deg,#374151,#111827);
  color:#fff;display:grid;place-items:center;font-size:13px;font-weight:800;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.16)}
.logo span{color:var(--ink3);font-weight:600}
nav.main{display:flex;gap:2px;flex:1;flex-wrap:wrap}
nav.main a{padding:8px 11px;border-radius:11px;color:var(--ink2);font-size:14px;font-weight:500;
  transition:.2s var(--ease)}
nav.main a:hover{background:var(--soft);color:var(--ink)}
nav.main a.on{color:var(--o-d);background:rgba(249,115,22,.08);font-weight:600}
.hd-cta{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.hd-phone{font-weight:700;font-size:17px;color:var(--ink);white-space:nowrap;letter-spacing:-.01em;line-height:1.15}
.hd-phone:hover{color:var(--o-d)}
.hd-phone small{display:block;font-weight:400;font-size:11.5px;color:var(--ink3);letter-spacing:0}

/* ---------- Кнопки ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:12px 22px;
  border-radius:var(--r-s);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  line-height:1.3;text-align:center;position:relative;overflow:hidden;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .3s var(--ease),background .2s,border-color .2s,color .2s}
.btn:active{transform:scale(.985)}
.btn-p{background:linear-gradient(180deg,var(--o-l),var(--o));color:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,.28) inset,0 10px 22px -9px rgba(249,115,22,.75)}
.btn-p:hover{color:#fff;box-shadow:0 1px 0 rgba(255,255,255,.28) inset,0 16px 30px -10px rgba(249,115,22,.85)}
.btn-p::after{content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,transparent 35%,rgba(255,255,255,.32) 50%,transparent 65%);
  transform:translateX(-120%);transition:transform .75s var(--ease)}
.btn-p:hover::after{transform:translateX(120%)}
.btn-o{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-o:hover{border-color:#D7DEE7;box-shadow:var(--sh-2);color:var(--ink)}
.btn-d{background:var(--ink);color:#fff}
.btn-d:hover{background:#1F2937;color:#fff}
.btn-wa{background:#25D366;color:#fff;box-shadow:0 10px 22px -10px rgba(37,211,102,.8)}
.btn-wa:hover{background:#1DA851;color:#fff}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:12px}
.btn-lg{padding:15px 28px;font-size:15.5px;border-radius:16px}
.btn-full{width:100%}

/* ---------- Первый экран ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,#fff 0%,#FBFCFD 55%,#F6F8FA 100%);padding:52px 0 46px}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(17,24,39,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(17,24,39,.055) 1px,transparent 1px),
    linear-gradient(rgba(17,24,39,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(17,24,39,.026) 1px,transparent 1px);
  background-size:120px 120px,120px 120px,24px 24px,24px 24px;
  -webkit-mask-image:radial-gradient(115% 90% at 68% 35%,#000 5%,transparent 76%);
  mask-image:radial-gradient(115% 90% at 68% 35%,#000 5%,transparent 76%)}
.hero .wrap{position:relative}
.hero .cols{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:44px;align-items:center}
.hero h1{margin:0 0 16px;font-size:clamp(32px,3vw,50px);line-height:1.06;letter-spacing:-.035em;
  font-weight:700;max-width:15em;color:var(--ink)}
.hero h1 em{font-style:normal;color:var(--o)}
.hero p.sub{color:var(--ink3);font-size:17px;max-width:40em;margin:0 0 28px;line-height:1.6}
.hero .acts{display:flex;flex-wrap:wrap;gap:12px}
.hero .facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-top:34px}
.hero .facts div{background:rgba(255,255,255,.8);border:1px solid var(--line);border-radius:18px;
  padding:16px 18px;backdrop-filter:blur(8px);transition:.3s var(--ease)}
.hero .facts div:hover{background:#fff;box-shadow:var(--sh-2);transform:translateY(-3px)}
.hero .facts b{display:block;font-size:22px;font-weight:700;letter-spacing:-.03em;color:var(--ink);line-height:1.2}
.hero .facts span{font-size:12.5px;color:var(--ink3)}
.hero .shot{border-radius:24px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-3);
  aspect-ratio:16/10;background:var(--soft)}
.hero .shot img{width:100%;height:100%;object-fit:cover}
.eyebrow{display:inline-flex;align-items:center;gap:9px;height:30px;padding:0 13px 0 9px;border-radius:99px;
  background:rgba(249,115,22,.09);color:var(--o-d);font-size:12.5px;font-weight:600;
  border:1px solid rgba(249,115,22,.18);margin-bottom:18px}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--o);animation:pulse 2.4s infinite;font-style:normal}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(249,115,22,.55)}70%{box-shadow:0 0 0 7px rgba(249,115,22,0)}}

/* ---------- Секции и типографика ---------- */
main{padding-bottom:20px;background:#fff}
section.blk{padding:52px 0 4px}
h1.page{font-size:clamp(29px,2.6vw,44px);letter-spacing:-.035em;margin:0 0 12px;line-height:1.08;font-weight:700}
h1.page em{font-style:normal;color:var(--o)}
h2{font-size:clamp(23px,1.9vw,32px);letter-spacing:-.03em;margin:38px 0 14px;font-weight:700;line-height:1.15}
h3{font-size:18.5px;margin:26px 0 8px;font-weight:600;letter-spacing:-.02em}
p{margin:0 0 14px}
.lead{font-size:16.5px;color:var(--ink3);max-width:62em;line-height:1.62}
.muted{color:var(--ink3);font-size:13.5px}
.crumbs{font-size:12.5px;color:var(--ink4);padding:18px 0 4px}
.crumbs a{color:var(--ink4)}
.crumbs a:hover{color:var(--o-d)}
.crumbs span{margin:0 7px;opacity:.55}

/* ---------- Карточки и сетки ---------- */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;box-shadow:var(--sh-2)}
.card h3{margin-top:0}
a.card{color:inherit;display:flex;flex-direction:column;transition:.35s var(--ease)}
a.card:hover{border-color:#DFE6EE;box-shadow:var(--sh-3);transform:translateY(-4px)}
a.card .more{color:var(--o-d);font-weight:600;font-size:14px;margin-top:12px;display:inline-block;
  transition:.25s var(--ease)}
a.card:hover .more{transform:translateX(3px)}
.card .price{font-size:21px;font-weight:700;color:var(--ink);letter-spacing:-.025em}
.card .price small{font-size:13px;font-weight:400;color:var(--ink3)}
.card.ph{padding:0;overflow:hidden}
.card.ph .pic{aspect-ratio:3/2;overflow:hidden;background:var(--soft);position:relative}
.card.ph .pic img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
a.card.ph:hover .pic img{transform:scale(1.06)}
.card.ph .pic b{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);border-radius:9px;padding:4px 10px;font-size:11px;font-weight:600;color:var(--ink2)}
.card.ph .bd{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.figure{border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);
  aspect-ratio:16/10;background:var(--soft)}
.figure img{width:100%;height:100%;object-fit:cover}
.tile-list{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 0}
.tile-list a{background:#fff;border:1px solid var(--line);color:var(--ink2);border-radius:11px;
  padding:8px 14px;font-size:13.5px;font-weight:500;transition:.25s var(--ease)}
.tile-list a:hover{border-color:var(--o);color:var(--o-d);box-shadow:var(--sh-2);transform:translateY(-2px)}

/* ---------- Таблицы ---------- */
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;margin:18px 0;
  box-shadow:var(--sh-2)}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th{background:#fff;text-align:left;padding:14px 20px;font-size:10.5px;font-weight:600;text-transform:uppercase;
  letter-spacing:.08em;color:var(--ink4);border-bottom:1px solid var(--line2);white-space:nowrap}
td{padding:14px 20px;border-bottom:1px solid var(--line2);vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr{transition:background .22s var(--ease)}
tbody tr:hover{background:#FCFDFE}
td.nw,th.nw{white-space:nowrap}
td.num{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}
td b a{color:var(--ink)}
td b a:hover{color:var(--o-d)}
td .thumb{width:56px;height:42px;border-radius:9px;object-fit:cover;border:1px solid var(--line)}
.assortment-table{table-layout:fixed;min-width:980px}
.assortment-table th:nth-child(1),.assortment-table td:nth-child(1){width:76px;padding-right:6px}
.assortment-table th:nth-child(2),.assortment-table td:nth-child(2){width:38%}
.assortment-table th:nth-child(3),.assortment-table td:nth-child(3){width:25%}
.assortment-table th:nth-child(4),.assortment-table td:nth-child(4){width:17%;text-align:right}
.assortment-table th:nth-child(5),.assortment-table td:nth-child(5){width:20%;text-align:left}
.city-full-assortment{margin:34px 0 40px;padding:24px;border:1px solid #2c3941;border-radius:9px;
  background:linear-gradient(145deg,#111b21,#0a1419)}
.city-assortment-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:8px}
.city-assortment-head h2{margin:5px 0 0}
.city-assortment-head .eyebrow{color:var(--o);font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.city-assortment-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px}
.city-assortment-group{padding:16px;border:1px solid #27343b;border-radius:7px;background:#0c161b}
.city-assortment-group:last-child{grid-column:1/-1}
.city-assortment-group h3{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 10px;
  color:#f0f3f4;font-size:15px}
.city-assortment-group h3 small{color:#687780;font-size:9px;font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.city-assortment-group>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px 12px}
.city-assortment-group a{position:relative;display:flex;flex-direction:column;min-width:0;padding:10px 28px 10px 0;
  border-bottom:1px solid #202c33;color:#eef2f4}
.city-assortment-group a:hover b{color:var(--o-l)}
.city-assortment-group a b{font-size:12.5px;line-height:1.25;transition:color .18s}
.city-assortment-group a span{margin-top:4px;color:#829098;font-size:10.5px;line-height:1.35}
.city-assortment-group a i{position:absolute;right:7px;top:50%;color:var(--o);font-style:normal;transform:translateY(-50%)}

/* ---------- Ценовой блок ---------- */
.pricebox{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 26px;margin:22px 0;
  box-shadow:var(--sh-3);position:relative;overflow:hidden}
.pricebox::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--o-l),var(--o))}
.pricebox .row{display:flex;flex-wrap:wrap;gap:22px;align-items:flex-end;justify-content:space-between}
.pricebox .val{font-size:38px;font-weight:700;letter-spacing:-.035em;line-height:1.1;color:var(--o)}
.pricebox .val small{font-size:15px;font-weight:500;color:var(--ink3);letter-spacing:0}
.pricebox .lbl{font-size:13px;color:var(--ink3);margin-bottom:3px}
.pricebox .acts{display:flex;gap:10px;flex-wrap:wrap}
.disclaimer{font-size:12.5px;color:var(--ink4);margin-top:14px;padding-top:14px;border-top:1px solid var(--line2)}

/* ---------- Плашки ---------- */
.note{border:1px solid var(--o-br);background:var(--o-bg);padding:16px 20px;border-radius:16px;margin:18px 0;
  font-size:14.5px;color:var(--ink2)}
.note.warn{border-color:#FDE68A;background:#FFFBEB}
.note.ok{border-color:#BBF7D0;background:#F0FDF4}
.badge{display:inline-block;background:#FFEDD5;color:#C2410C;border:0;border-radius:8px;padding:3px 10px;
  font-size:11px;font-weight:600;white-space:nowrap}
.badge.gray{background:#E2E8F0;color:#475569}
.badge.green{background:#DCFCE7;color:#15803D}
.badge.blue{background:#DBEAFE;color:#1D4ED8}

/* ---------- Калькулятор ---------- */
.calc{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--sh-3)}
.calc h3{margin:0 0 4px;font-size:20px;letter-spacing:-.02em}
.calc .hint{font-size:13.5px;color:var(--ink3);margin-bottom:18px}
.frow{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
label.f{display:block;font-size:13px;color:var(--ink3);font-weight:500;margin-bottom:6px}
input.f,select.f,textarea.f{width:100%;padding:0 14px;height:46px;border:1px solid var(--line);
  border-radius:12px;font-size:15px;font-weight:500;background:#fff;color:var(--ink);
  transition:.2s var(--ease);outline:none}
textarea.f{height:auto;padding:12px 14px;font-weight:400;line-height:1.5}
select.f{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='m4 6 4 4 4-4' stroke='%239CA3AF' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
input.f:focus,select.f:focus,textarea.f:focus{border-color:var(--o);box-shadow:0 0 0 4px rgba(249,115,22,.13)}
.calc-out{margin-top:20px;background:var(--soft);border:1px solid var(--line);border-radius:18px;padding:20px}
.calc-out .line{display:flex;justify-content:space-between;gap:12px;padding:6px 0;font-size:15px;color:var(--ink2)}
.calc-out .line b{font-variant-numeric:tabular-nums;color:var(--ink)}
.calc-out .total{border-top:1px solid var(--line);margin-top:10px;padding-top:12px;font-size:15px}
.calc-out .total b{font-size:26px;font-weight:700;letter-spacing:-.03em;color:var(--o)}
.calc-out .acts{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}

/* ---------- Форма заявки / КП ---------- */
.leadform{background:linear-gradient(120deg,#111827,#1F2937 60%,#374151);color:#fff;border-radius:26px;
  padding:38px 40px;position:relative;overflow:hidden}
.leadform::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:28px 28px;
  -webkit-mask-image:radial-gradient(80% 100% at 85% 40%,#000,transparent 72%);
  mask-image:radial-gradient(80% 100% at 85% 40%,#000,transparent 72%)}
.leadform>*{position:relative}
.leadform h3{margin:0 0 8px;color:#fff;font-size:26px;letter-spacing:-.03em}
.leadform p{color:#C3CBD6;font-size:14.5px}
.leadform input.f,.leadform textarea.f,.leadform select.f{background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.14);color:#fff}
.leadform input.f::placeholder,.leadform textarea.f::placeholder{color:#8B95A0}
.leadform input.f:focus,.leadform textarea.f:focus,.leadform select.f:focus{
  background:rgba(255,255,255,.1);border-color:var(--o);box-shadow:0 0 0 4px rgba(249,115,22,.18)}
.leadform label.f{color:#9CA7B3}
.formnote{font-size:12.5px;color:#8B95A0;margin-top:14px}
.okmsg{display:none;background:rgba(22,163,74,.14);border:1px solid rgba(34,197,94,.4);color:#86EFAC;
  padding:15px 18px;border-radius:14px;margin-top:16px;font-size:14.5px}

/* ---------- FAQ ---------- */
details.faq{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0;margin-bottom:12px;
  overflow:hidden;transition:.3s var(--ease)}
details.faq:hover{box-shadow:var(--sh-2);border-color:#DFE6EE}
details.faq summary{cursor:pointer;padding:18px 24px;font-weight:600;font-size:16px;list-style:none;
  position:relative;padding-right:52px;letter-spacing:-.015em}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"";position:absolute;right:22px;top:19px;width:20px;height:20px;
  border-radius:50%;border:1px solid var(--line);
  background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='m4 6 4 4 4-4' stroke='%23F97316' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/11px no-repeat;
  transition:transform .3s var(--ease)}
details.faq[open] summary::after{transform:rotate(180deg)}
details.faq .a{padding:0 24px 20px;color:var(--ink3);font-size:15px}
details.faq[open] summary{border-bottom:1px solid var(--line2)}
details.faq[open] .a{padding-top:16px}

/* ---------- Подвал ---------- */
footer.site{background:var(--soft);border-top:1px solid var(--line);color:var(--ink3);
  padding:48px 0 28px;margin-top:56px;font-size:14px}
footer.site .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;
  padding-bottom:28px;border-bottom:1px solid var(--line)}
footer.site h4{color:var(--ink);font-size:12px;margin:0 0 14px;text-transform:uppercase;letter-spacing:.08em;font-weight:600}
footer.site a{color:var(--ink3);display:block;padding:4px 0;font-size:14px;transition:color .2s}
footer.site a:hover{color:var(--o-d)}
footer.site .btm{padding-top:22px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.5px;color:var(--ink4)}

/* ---------- Плавающие кнопки ---------- */
.floats{position:fixed;right:22px;bottom:22px;z-index:80;display:flex;flex-direction:column;gap:12px}
.floats a{position:relative;width:64px;height:64px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:25px;
  box-shadow:0 10px 26px -8px rgba(0,0,0,.45);transition:.28s var(--ease)}
.floats a:hover{transform:translateY(-3px) scale(1.04)}
.floats a::before{content:attr(data-tip);position:absolute;right:calc(100% + 12px);top:50%;padding:8px 11px;border:1px solid #334149;
  border-radius:5px;background:#0a1419;color:#eef2f4;font:600 11px/1.2 Inter,Arial,sans-serif;white-space:nowrap;
  opacity:0;visibility:hidden;transform:translate(6px,-50%);transition:.18s ease;pointer-events:none;box-shadow:0 12px 28px rgba(0,0,0,.35)}
.floats a:hover::before,.floats a:focus-visible::before{opacity:1;visibility:visible;transform:translate(0,-50%)}
.floats .wa{background:#25D366}
.floats .callback{background:#16242c;color:#eef3f5}
.floats .to-top{order:3;background:#101c22;color:#dce4e8;opacity:0;visibility:hidden;pointer-events:none;
  transform:translateY(10px) scale(.9)}
.floats .to-top.is-visible{opacity:1;visibility:visible;pointer-events:auto;transform:none}
.floats .to-top.is-visible:hover{transform:translateY(-3px) scale(1.04)}
.sg-callback-modal[hidden]{display:none}
.sg-modal-open{overflow:hidden}
.sg-callback-modal{position:fixed;z-index:200;inset:0;padding:20px;display:grid;place-items:center;background:rgba(2,8,11,.76);backdrop-filter:blur(5px)}
.sg-callback-card{position:relative;width:min(440px,100%);padding:28px;border:1px solid #3a4850;border-radius:10px;
  background:linear-gradient(145deg,#111c22,#091318);box-shadow:0 34px 90px rgba(0,0,0,.65)}
.sg-callback-card h3{margin:0 40px 8px 0;font-size:24px}
.sg-callback-card>p{margin:0 0 20px;color:#95a1a8;font-size:13px;line-height:1.5}
.sg-callback-close{position:absolute;right:14px;top:14px;width:34px;height:34px;border:1px solid #344149;border-radius:50%;
  display:grid;place-items:center;background:#0c171c;color:#bdc6cb;font-size:21px;cursor:pointer}
.sg-callback-close:hover{color:#fff;border-color:#ff6a0b}
.sg-callback-card .f{width:100%}
.sg-callback-card .callback-fields{display:grid;grid-template-columns:1fr 1.2fr;gap:12px}
.sg-callback-card .btn{width:100%;margin-top:16px}

@media(max-width:1200px){
  .wrap{padding:0 24px}
  .hero .cols{grid-template-columns:1fr}
  .hero .shot{display:none}
}
@media(max-width:900px){
  header.site .wrap{flex-wrap:wrap;gap:12px}
  nav.main{order:3;width:100%;gap:0;overflow-x:auto;flex-wrap:nowrap}
  nav.main a{padding:7px 10px;font-size:13.5px;white-space:nowrap}
  .hero{padding:36px 0 34px}
  .leadform{padding:26px 22px;border-radius:20px}
  section.blk{padding:38px 0 4px}
  .pricebox .val{font-size:30px}
}
@media print{header.site,.floats,footer.site,.leadform,.topbar{display:none}}

/* ==========================================================
   Steel Groups 2026 — dark industrial commerce skin
   Visual-only layer: keeps every existing URL and HTML block.
   ========================================================== */
:root{
  --o:#ff6500;--o-d:#ff7a1a;--o-l:#ff812f;--o-bg:rgba(255,101,0,.09);--o-br:rgba(255,101,0,.34);
  --ink:#f2f5f7;--ink2:#d5dce1;--ink3:#8d989f;--ink4:#657078;
  --line:#263139;--line2:#1d272e;--soft:#10181d;--bg:#081015;
  --ok:#27c66f;--warn:#e4a62d;--blue:#4d91ff;
  --wrap:1480px;--r:10px;--r-s:7px;--r-xs:5px;
  --sh-1:0 1px 0 rgba(255,255,255,.025);
  --sh-2:0 1px 0 rgba(255,255,255,.025),0 16px 34px -24px rgba(0,0,0,.82);
  --sh-3:0 1px 0 rgba(255,255,255,.035),0 24px 54px -28px rgba(0,0,0,.92);
}
html{background:#071015}
body{
  background:
    radial-gradient(1200px 600px at 50% -180px,rgba(71,88,99,.24),transparent 68%),
    linear-gradient(180deg,#091116 0,#071015 100%);
  color:var(--ink);font-size:14.5px
}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:72px 72px}
.wrap{padding-left:30px;padding-right:30px}
a{color:var(--o)}

/* header */
.topbar{background:#071015;border-color:#192229;color:#748089;font-size:10.5px}
.topbar .wrap{padding-top:5px;padding-bottom:5px}
.topbar a{color:#a8b1b7}
header.site{top:0;background:rgba(8,16,21,.94);border-color:#28333a;backdrop-filter:blur(18px) saturate(120%)}
header.site .wrap{padding-top:10px;padding-bottom:10px;gap:22px}
.logo{color:#f4f6f7;font-size:17px;letter-spacing:.045em;text-transform:uppercase}
.logo .mark{width:38px;height:38px;border-radius:5px;border:1px solid #9ca6ac;
  background:linear-gradient(145deg,#f2f4f5 0,#88949b 33%,#172127 36%,#070d11 100%);
  color:#071015;text-shadow:0 1px rgba(255,255,255,.4);box-shadow:inset 0 0 0 3px #111b21,0 0 20px rgba(255,255,255,.06)}
.logo span{color:#8e9aa2}
nav.main{justify-content:center;gap:4px}
nav.main a{color:#aab3b9;padding:7px 9px;border-radius:5px;font-size:11.5px}
nav.main a:hover{background:#111b21;color:#fff}
nav.main a.on{color:#fff;background:#182229;box-shadow:inset 0 -2px var(--o)}
.hd-phone{color:#fff;font-size:13px}
.hd-phone small{color:#77838b;font-size:9.5px}

/* unified two-level header */
.sg-head{position:relative;z-index:70;background:#071015;color:#f4f6f7}
.sg-head .wrap{max-width:var(--wrap);margin:0 auto;padding-left:30px;padding-right:30px}
.sg-head-top{border-bottom:1px solid #202c32;background:#071015}
.sg-head-top .wrap{height:64px;display:flex;align-items:center;gap:18px}
.sg-brand{display:flex;align-items:center;gap:8px;color:#f4f6f7;text-transform:uppercase;
  font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.sg-brand:hover{color:#fff}
.sg-brand>span:last-child{color:#929da3}
.sg-mark{width:34px;height:34px;border-radius:5px;background:linear-gradient(145deg,#323d43,#10181c);
  border:1px solid #5e6a70;box-shadow:inset 0 0 0 2px #10171b;display:grid;place-items:center;
  color:#fff!important;font-size:11px;font-weight:800}
.sg-mark img{width:100%;height:100%;display:block;object-fit:cover;border-radius:4px}
.sg-catalog{height:34px;padding:0 16px;border-radius:5px;display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(180deg,#ff781f,#e85700);box-shadow:0 8px 20px -10px #ff6500;
  color:#fff;font-size:13px;font-weight:650;white-space:nowrap}
.sg-catalog:hover{color:#fff;background:linear-gradient(180deg,#ff8738,#f26109)}
.sg-catalog-wrap{position:relative}
.sg-mega{position:absolute;left:0;top:calc(100% + 10px);z-index:90;width:min(1200px,calc(100vw - 70px));padding:20px;
  background:#0a1419;border:1px solid #344149;border-radius:8px;box-shadow:0 26px 60px rgba(0,0,0,.55);
  opacity:0;visibility:hidden;transform:translateY(-5px);transition:.18s ease;pointer-events:none}
.sg-catalog-wrap:hover .sg-mega,.sg-catalog-wrap:focus-within .sg-mega{opacity:1;visibility:visible;transform:none;pointer-events:auto}
.sg-mega::before{content:"";position:absolute;left:0;right:0;top:-11px;height:12px}
.sg-mega-head{display:flex;align-items:center;justify-content:space-between;padding:0 2px 13px;border-bottom:1px solid #263239}
.sg-mega-head b{display:block;color:#f1f4f5;font-size:18px}
.sg-mega-head span{display:block;color:#78858c;font-size:11px;margin-top:3px;text-transform:uppercase;letter-spacing:.07em}
.sg-mega-head>a{color:#ff7b2a;font-size:13px;font-weight:600}
.sg-mega-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;padding-top:14px}
.sg-mega-grid>div{min-width:0;padding-right:10px;border-right:1px solid #202c32}
.sg-mega-grid>div:last-child{border-right:0}
.sg-mega-grid a{display:block;padding:5px;color:#9ba7ad;font-size:14px;line-height:1.35}
.sg-mega-grid a:hover{color:#fff;background:#111e24;border-radius:4px}
.sg-mega-grid .sg-mega-title{color:#eef2f4;font-size:15px;font-weight:700;margin-bottom:6px}
.sg-quick{margin-left:auto;display:flex;align-items:center;gap:18px}
.sg-quick a{display:flex;align-items:center;gap:6px;color:#87939a;font-size:12px;white-space:nowrap}
.sg-quick a:hover{color:#fff}
.sg-city-menu{position:relative}
.sg-city-menu::after{content:"";position:absolute;z-index:94;left:-18px;right:-18px;top:100%;height:24px}
.sg-city-trigger{height:34px;padding:0 12px;border:1px solid #344149;border-radius:5px;background:#0d181e;color:#dbe1e4;
  display:flex;align-items:center;gap:7px;font:600 12px/1 Inter,Arial,sans-serif;white-space:nowrap;cursor:pointer}
.sg-city-trigger:hover,.sg-city-menu:focus-within .sg-city-trigger{color:#fff;border-color:#ff761f;background:#121f26}
.sg-city-trigger .chev{color:#ff761f;transition:transform .18s ease}
.sg-city-menu:hover .chev,.sg-city-menu:focus-within .chev{transform:rotate(180deg)}
.sg-city-panel{position:fixed;z-index:95;top:68px;left:50%;width:min(1080px,calc(100vw - 40px));max-height:min(68vh,590px);
  overflow:auto;padding:18px 20px 20px;border:1px solid #344149;border-radius:8px;background:#091419;
  box-shadow:0 28px 70px rgba(0,0,0,.62);opacity:0;visibility:hidden;pointer-events:none;
  transform:translate(-50%,-8px);transition:.18s ease}
.sg-city-menu:hover .sg-city-panel,.sg-city-menu:focus-within .sg-city-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.sg-city-panel::before{content:"";position:fixed;left:0;right:0;top:55px;height:16px}
.sg-city-head{display:flex;align-items:end;justify-content:space-between;gap:20px;padding-bottom:13px;border-bottom:1px solid #263239}
.sg-city-head b{display:block;color:#f2f5f6;font-size:16px}
.sg-city-head span{color:#7e8b92;font-size:11px}
.sg-city-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:3px 10px;padding-top:12px}
.sg-city-grid a{padding:7px 9px;border-radius:4px;color:#9ca7ad;font-size:12px;line-height:1.25}
.sg-city-grid a:hover{color:#fff;background:#142128}
.sg-city-grid a.is-selected{color:#fff;background:#18262e;box-shadow:inset 2px 0 #ff6a0b}
.sg-city-grid a.has-page{color:#f0f3f4;font-weight:600}
.sg-city-grid a.has-page::after{content:"";display:inline-block;width:5px;height:5px;margin-left:6px;border-radius:50%;background:#ff6a0b;vertical-align:middle}
.sg-head-nav{border-bottom:1px solid #202c32;background:#0a1318}
.sg-head-nav .wrap{height:48px;display:flex;align-items:center;gap:6px}
.sg-main{display:flex;align-items:stretch;flex:1;height:100%;overflow-x:auto;scrollbar-width:none}
.sg-main::-webkit-scrollbar{display:none}
.sg-main a{height:47px;padding:0 12px;display:flex;align-items:center;color:#a8b1b6;
  border-bottom:2px solid transparent;font-size:13px;font-weight:500;white-space:nowrap}
.sg-main a:hover{color:#fff;background:#101b20}
.sg-main a.on{color:#fff;background:#111d22;border-bottom-color:var(--o)}
.sg-phone{margin-left:auto;padding-left:12px;border-left:1px solid #263239;display:flex;align-items:center;
  gap:10px;color:#fff;white-space:nowrap}
.sg-phone:hover{color:#fff}
.sg-phone-icon{width:28px;height:28px;border:1px solid #334047;border-radius:50%;display:grid;place-items:center;color:#dce3e6}
.sg-phone b{display:block;font-size:15px;line-height:1.1}
.sg-phone small{display:block;color:#76838a;font-size:10px;margin-top:2px}

/* controls */
.btn{border-radius:6px;padding:10px 17px;font-size:12.5px;font-weight:600}
.btn-sm{padding:8px 13px;font-size:11px;border-radius:5px}
.btn-lg{padding:12px 20px;font-size:13px;border-radius:6px}
.btn-p{background:linear-gradient(180deg,#ff791f,#ef5900);box-shadow:0 1px rgba(255,255,255,.25) inset,0 9px 20px -10px rgba(255,101,0,.75)}
.btn-o{background:#111a20;color:#f0f3f5;border-color:#334048;box-shadow:none}
.btn-o:hover{background:#19242b;border-color:#54626a;color:#fff}
.btn-d{background:#202b32}
.btn-wa{background:#139a4b;box-shadow:none}

/* home hero */
.hero{padding:0;border:0;background:#081015}
.hero::before{z-index:1;opacity:.22;background-size:80px 80px,80px 80px,16px 16px,16px 16px;
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 72%);mask-image:linear-gradient(90deg,#000,transparent 72%)}
.hero .wrap{padding-top:34px}
.hero .cols{position:relative;min-height:410px;grid-template-columns:minmax(360px,.86fr) minmax(520px,1.4fr);gap:0;align-items:stretch;
  overflow:hidden;border:1px solid #2c373e;border-radius:10px;background:#0b1419;box-shadow:0 34px 80px -42px #000}
.hero .cols>div:first-child{position:relative;z-index:3;padding:44px 0 36px 34px;align-self:center}
.hero .shot{position:relative;border:0;border-radius:0;aspect-ratio:auto;box-shadow:none;background:#0b1419}
.hero .shot::after{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,#0b1419 0,rgba(11,20,25,.92) 10%,rgba(11,20,25,.1) 56%),
  linear-gradient(0deg,rgba(7,15,20,.8),transparent 42%)}
.hero .shot img{filter:saturate(.38) contrast(1.14) brightness(.82);object-position:center}
.hero h1{font-size:clamp(38px,4.1vw,64px);line-height:.98;max-width:11em;color:#f6f7f8;font-weight:700}
.hero h1 em{color:var(--o)}
.hero p.sub{max-width:36em;color:#9aa5ac;font-size:14px;line-height:1.55}
.eyebrow{height:25px;padding:0;border:0;border-radius:0;background:transparent;color:#aab3b9;font-size:10px;text-transform:uppercase;letter-spacing:.1em}
.eyebrow i{background:var(--o);animation:none}
.hero .facts{position:relative;z-index:4;grid-template-columns:repeat(4,1fr);gap:0;margin:0;border:1px solid #2b363d;border-top:0;
  border-radius:0 0 10px 10px;background:#0d161b}
.hero .facts div{padding:15px 20px;background:transparent;border:0;border-right:1px solid #273239;border-radius:0;backdrop-filter:none}
.hero .facts div:hover{background:#121d23;box-shadow:none;transform:none}
.hero .facts b{color:#eef1f2;font-size:17px}
.hero .facts span{color:#77838a;font-size:10.5px}

/* content */
main{padding-bottom:28px;background:transparent}
section.blk{padding:34px 0 2px}
h1.page{color:#f5f7f8;font-size:clamp(27px,2.5vw,42px);font-weight:650}
h2{color:#f2f5f6;font-size:clamp(21px,1.8vw,29px);font-weight:650;margin-top:34px}
h3{color:#ecf0f2}
.lead{color:#9ba6ad;font-size:15px}
.muted{color:#7f8a92}
.crumbs{color:#68757d;padding-top:13px}
.crumbs a{color:#7c8991}

.grid{gap:12px}
.card{background:linear-gradient(145deg,#111a20,#0d161b);border-color:#29343b;border-radius:8px;padding:18px 19px;box-shadow:var(--sh-2)}
a.card:hover{border-color:#46535b;background:#131e24;box-shadow:0 18px 34px -24px #000;transform:translateY(-2px)}
a.card .more{color:var(--o);font-size:12px}
.card .price{color:#f1f4f5;font-size:18px}
.card .price small{color:#7e8991}
.card.ph{border-radius:7px}
.card.ph .pic{background:#0a1217;aspect-ratio:1.75}
.card.ph .pic::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(6,13,17,.5),transparent 55%)}
.card.ph .pic img{filter:saturate(.26) contrast(1.13) brightness(.82)}
.card.ph .pic b{z-index:2;left:10px;top:10px;background:rgba(8,16,21,.86);border:1px solid #354149;color:#cbd2d6;border-radius:4px;font-size:9px}
.card.ph .bd{padding:15px 16px 17px}
.figure{border-color:#2b363d;border-radius:8px;box-shadow:var(--sh-3);background:#0b1419}
.figure img{filter:saturate(.3) contrast(1.13) brightness(.84)}
.tile-list{gap:7px}
.tile-list a{background:#0e181d;border-color:#2a353c;color:#adb6bc;border-radius:5px;padding:8px 12px;font-size:11.5px}
.tile-list a:hover{border-color:var(--o);color:#fff;background:#162127}

/* tables and commerce */
.tw{border-color:#2a353c;border-radius:8px;background:#0d161b;box-shadow:var(--sh-2)}
table{font-size:12.5px}
th{background:#111b21;color:#737f87;border-color:#243038;font-size:9px;padding:11px 14px}
td{border-color:#202b32;padding:11px 14px;color:#b8c0c5}
tbody tr:hover{background:#131e24}
td b a{color:#eef1f2}
td .thumb{border-color:#303c43;border-radius:5px;filter:saturate(.25)}
.pricebox{background:linear-gradient(135deg,#121c22,#0d161b);border-color:#303b42;border-radius:8px;padding:20px 22px;box-shadow:var(--sh-3)}
.pricebox .val{font-size:32px;color:var(--o)}
.pricebox .val small,.pricebox .lbl,.disclaimer{color:#7f8b92}
.disclaimer{border-color:#273239}
.note{border-color:var(--o-br);background:rgba(255,101,0,.07);color:#bfc6ca;border-radius:7px}
.note.warn{border-color:rgba(228,166,45,.34);background:rgba(228,166,45,.07)}
.note.ok{border-color:rgba(39,198,111,.3);background:rgba(39,198,111,.07)}
.badge{border-radius:4px;background:rgba(255,101,0,.14);color:#ff8b42}
.badge.gray{background:#263139;color:#aeb7bc}.badge.green{background:rgba(39,198,111,.13);color:#50d88d}.badge.blue{background:rgba(77,145,255,.13);color:#79aaff}

/* calculators and forms */
.calc{background:linear-gradient(145deg,#111a20,#0c151a);border-color:#2d383f;border-radius:9px;padding:22px;box-shadow:var(--sh-3)}
.calc h3{color:#f0f3f4}
.calc .hint,label.f{color:#808c94}
input.f,select.f,textarea.f{height:42px;background:#091217;color:#e9edef;border-color:#2d3940;border-radius:5px;font-size:13px}
textarea.f{height:auto}
input.f:focus,select.f:focus,textarea.f:focus{background:#0d171c;border-color:var(--o);box-shadow:0 0 0 3px rgba(255,101,0,.12)}
select.f{background-color:#091217}
.calc-out{background:#081116;border-color:#28343b;border-radius:7px}
.calc-out .line{color:#929da4;font-size:13px}
.calc-out .line b{color:#e6eaec}
.calc-out .total{border-color:#29343b}
.calc-out .total b{color:var(--o)}
.leadform{background:
  radial-gradient(500px 300px at 88% 0,rgba(255,101,0,.12),transparent 65%),
  linear-gradient(135deg,#111b21,#091217);border:1px solid #303c43;border-radius:9px;padding:30px 32px}
.leadform::before{background-size:24px 24px}
.leadform h3{color:#f3f5f6}
.leadform p{color:#9aa5ac}
.leadform input.f,.leadform textarea.f,.leadform select.f{background:#081116;border-color:#344149}
.formnote{color:#6f7b83}
.okmsg a{display:inline-block;margin-left:6px;color:#9af1bd;text-decoration:underline}

/* faq, footer, floats */
details.faq{background:#0e181d;border-color:#2a353c;border-radius:7px}
details.faq:hover{border-color:#46535b;box-shadow:none}
details.faq summary{color:#dfe4e7}
details.faq summary::after{border-color:#39454c}
details.faq .a{color:#929da4}
details.faq[open] summary{border-color:#263239}
footer.site{background:#060d11;border-color:#222d34;color:#758189;margin-top:44px;padding:38px 0 24px}
footer.site .cols{border-color:#222d34;gap:24px}
footer.site h4{color:#dce2e5}
footer.site a{color:#77848c;font-size:12px}
footer.site a:hover{color:var(--o)}
footer.site .btm{color:#59656d}
.floats a{border:1px solid rgba(255,255,255,.16);box-shadow:0 14px 30px -12px #000}
.floats .callback{background:#18242b;color:#dce5e9}

@media(max-width:1200px){
  .hero .cols{grid-template-columns:.95fr 1.2fr}
  .hero .shot{display:block}
  .hd-phone small{display:none}
  .sg-quick{display:none}
  .sg-mega{display:none}
}
@media(max-width:900px){
  .wrap{padding-left:16px;padding-right:16px}
  .topbar{display:none}
  header.site .wrap{padding-top:9px;padding-bottom:9px}
  .hd-cta .btn{display:none}
  .sg-head .wrap{padding-left:14px;padding-right:14px}
  .sg-head-top .wrap{height:58px;gap:10px}
  .sg-head-nav .wrap{height:42px;padding-right:0}
  .sg-main a{height:41px;font-size:11.5px}
  .sg-city-trigger{height:34px;font-size:11px;padding:0 10px}
  .sg-city-panel{top:62px;width:calc(100vw - 16px);max-height:72vh;padding:15px 14px 16px}
  .sg-city-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:2px 6px}
  .sg-city-grid a{font-size:11px;padding:6px}
  .sg-phone{display:none}
  .hero .wrap{padding-top:16px}
  .hero .cols{min-height:0;display:flex;flex-direction:column-reverse}
  .hero .shot{height:230px}
  .hero .shot::after{background:linear-gradient(0deg,#0b1419,transparent 72%)}
  .hero .cols>div:first-child{padding:4px 18px 24px}
  .hero h1{font-size:40px}
  .hero .facts{grid-template-columns:1fr 1fr}
  section.blk{padding-top:28px}
}
@media(max-width:560px){
  .logo{font-size:14px}.logo .mark{width:34px;height:34px}
  .hd-phone{font-size:11px}
  .sg-brand{font-size:15px;gap:6px}
  .sg-mark{width:32px;height:32px}
  .sg-catalog{padding:0 11px}
  .sg-catalog svg{display:none}
  .sg-city-trigger span{display:none}
  .sg-city-trigger{width:34px;padding:0;justify-content:center}
  .sg-city-trigger .chev{display:none}
  .sg-city-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .sg-brand b,.sg-brand>span:last-child{display:none}
  .sg-catalog{margin-left:auto;padding:0 12px}
  .hero h1{font-size:34px}
  .hero p.sub{font-size:13px}
  .hero .acts .btn{width:100%}
  .hero .facts div{padding:13px}
  .hero .facts b{font-size:15px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .leadform{padding:22px 16px}
  .pricebox .row{align-items:stretch}
  .pricebox .acts .btn{width:100%}
  .floats{right:14px;bottom:14px}.floats a{width:56px;height:56px}
  .floats a::before{display:none}
  .sg-callback-card{padding:24px 18px}
  .sg-callback-card .callback-fields{grid-template-columns:1fr}
  .city-full-assortment{padding:18px 14px}
  .city-assortment-head{align-items:stretch;flex-direction:column}
  .city-assortment-groups,.city-assortment-group>div{grid-template-columns:1fr}
  .city-assortment-group:last-child{grid-column:auto}
}

/* Mobile QA: stable touch targets and no clipped commercial actions. */
@media(max-width:560px){
  .sg-head-top .wrap{height:64px}
  .sg-catalog{height:42px}
  .sg-city-trigger{width:42px;height:42px}
  .btn{min-height:44px}
  input.f,select.f,textarea.f{font-size:16px}
  .calc-out .acts{width:100%}
  .calc-out .acts .btn{width:100%;height:auto;white-space:normal}
}