:root{
  --paper:#EEF1F3;
  --card:#FFFFFF;
  --ink:#14171A;
  --steel:#5B6670;
  --line:#D7DCE0;
  --accent:#E8590C;
  --accent-dk:#C5490A;
  --rail:#2B5C8A;
  --display:"IBM Plex Sans Condensed",system-ui,sans-serif;
  --sans:"IBM Plex Sans",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --wrap:1160px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4em;
  font-family:var(--sans);font-weight:600;font-size:.94rem;line-height:1;
  padding:.72em 1.25em;border:1px solid transparent;border-radius:2px;
  cursor:pointer;transition:background .15s,color .15s,border-color .15s,transform .05s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-dk)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-sm{padding:.55em .85em;font-size:.84rem}
.btn-lg{padding:.9em 1.6em;font-size:1rem}
.btn-block{width:100%}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:var(--card);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:grid;grid-template-columns:auto auto 1fr;align-items:center;
  gap:28px;height:74px;
}
.brand{display:flex;align-items:baseline;gap:8px}
.brand-chev{color:var(--accent);font-weight:700;font-size:1.5rem;line-height:1}
.brand-name{font-family:var(--display);font-weight:700;font-size:1.45rem;letter-spacing:1px}
.brand-sub{font-family:var(--mono);font-size:.7rem;color:var(--steel);letter-spacing:1px;text-transform:uppercase}
.main-nav{display:flex;gap:22px;font-weight:500}
.main-nav a{padding:6px 0;border-bottom:2px solid transparent;color:var(--steel)}
.main-nav a:hover{color:var(--ink)}

.search{display:flex;max-width:420px;width:100%}
.search input{
  flex:1;min-width:0;font-family:var(--sans);font-size:.92rem;
  padding:.6em .8em;border:1px solid var(--line);border-right:none;
  border-radius:2px 0 0 2px;background:var(--paper);
}
.search input:focus{outline:none;border-color:var(--ink);background:#fff}
.search button{
  font-family:var(--sans);font-weight:600;font-size:.88rem;color:#fff;
  background:var(--ink);border:1px solid var(--ink);border-radius:0 2px 2px 0;
  padding:0 1.1em;cursor:pointer;
}
.search button:hover{background:#000}

.cart-link{position:relative;font-weight:600;display:inline-flex;align-items:center;gap:8px;padding:6px 2px}
.cart-link:hover{color:var(--accent)}
.cart-badge{
  background:var(--accent);color:#fff;font-family:var(--mono);font-size:.72rem;
  min-width:20px;height:20px;border-radius:10px;display:inline-flex;
  align-items:center;justify-content:center;padding:0 6px;
}

/* ---------- Hero ---------- */
.hero{background:var(--card);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;padding:64px 24px 70px}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:3px;color:var(--accent);margin:0 0 18px}
.hero-title{font-family:var(--display);font-weight:700;font-size:clamp(2.3rem,4.6vw,3.7rem);line-height:1.04;letter-spacing:.5px;margin:0 0 22px}
.hero-text{color:var(--steel);font-size:1.06rem;max-width:38ch;margin:0 0 30px}

.hero-gates{display:flex;flex-direction:column;gap:16px}

/* Index panel — "оглавление" разделов */
.index-panel{background:var(--paper);border:1px solid var(--line);border-radius:3px;align-self:start}
.index-head{font-family:var(--mono);font-size:.74rem;letter-spacing:2px;text-transform:uppercase;color:var(--steel);padding:16px 20px;border-bottom:2px solid var(--ink)}
.index-list{list-style:none;margin:0;padding:6px}
.index-list a{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;padding:10px 12px;border-radius:2px;color:var(--ink);transition:background .12s}
.index-list a:hover{background:var(--card)}
.index-list .dot{width:9px;height:9px;border-radius:50%;background:var(--tag,var(--steel))}
.index-name{font-weight:500;font-size:.96rem}
.index-list a:hover .index-name{color:var(--accent)}
.index-count{font-family:var(--mono);font-size:.86rem;color:var(--steel);font-weight:500}

/* ---------- Blocks / grid ---------- */
.block{padding:54px 24px}
.block-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:24px;border-bottom:2px solid var(--ink);padding-bottom:10px}
.block-title{font-family:var(--display);font-weight:700;font-size:1.7rem;margin:0;letter-spacing:.3px}
.block-more{font-weight:600;color:var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:18px}

/* ---------- Product card ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:3px;
  display:flex;flex-direction:column;overflow:hidden;
  transition:border-color .15s,box-shadow .15s,transform .12s;
}
.card:hover{border-color:#B8C0C7;box-shadow:0 6px 18px rgba(20,23,26,.07);transform:translateY(-2px)}
.card-media{display:block;aspect-ratio:4/3;background:#F7F9FA;border-bottom:1px solid var(--line)}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-body{padding:14px 15px 15px;display:flex;flex-direction:column;gap:8px;flex:1}
.tag{
  align-self:flex-start;font-family:var(--mono);font-size:.66rem;font-weight:500;
  letter-spacing:1px;text-transform:uppercase;color:var(--tag);
  border:1px solid var(--tag);border-radius:2px;padding:2px 7px;
}
.mark{font-family:var(--mono);font-size:.8rem;color:var(--steel);letter-spacing:.5px}
.card-title{font-weight:600;font-size:1rem;line-height:1.3;color:var(--ink)}
.card-title:hover{color:var(--accent)}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px}
.price{font-family:var(--mono);font-weight:600;font-size:1.12rem;white-space:nowrap}
.price-unit{font-family:var(--sans);font-weight:400;font-size:.74rem;color:var(--steel);margin-left:4px}

/* ---------- Catalog layout ---------- */
.catalog{padding:34px 24px 64px}
.catalog-head{margin-bottom:22px;border-bottom:1px solid var(--line);padding-bottom:16px}
.page-title{font-family:var(--display);font-weight:700;font-size:2.1rem;margin:0}
.page-sub{font-family:var(--mono);font-size:.85rem;color:var(--steel);margin:6px 0 0}
.catalog-layout{display:grid;grid-template-columns:248px 1fr;gap:30px;align-items:start}

.filters{position:sticky;top:96px}
.filter-block{border:none;border-top:2px solid var(--ink);padding:14px 0 18px;margin:0}
.filter-block:first-of-type{border-top:none;padding-top:0}
.filter-block legend{font-family:var(--mono);font-size:.74rem;letter-spacing:2px;text-transform:uppercase;color:var(--steel);padding:0;margin-bottom:10px}
.filter-cats{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.filter-cats a{display:flex;align-items:center;gap:8px;padding:7px 9px;border-radius:2px;color:var(--steel);font-weight:500;font-size:.94rem}
.filter-cats a:hover{background:var(--card);color:var(--ink)}
.filter-cats a.active{background:var(--ink);color:#fff}
.filter-cats .dot{width:9px;height:9px;border-radius:50%;background:var(--tag,var(--steel));flex:none}
.filter-cats a.active .dot{box-shadow:0 0 0 2px rgba(255,255,255,.35)}

.price-range{display:flex;align-items:center;gap:8px}
.price-range input{width:100%;min-width:0;font-family:var(--mono);font-size:.9rem;padding:.5em .6em;border:1px solid var(--line);border-radius:2px;background:var(--card)}
.price-range input:focus{outline:none;border-color:var(--ink)}
.price-range span{color:var(--steel)}

.filter-block select{width:100%;font-family:var(--sans);font-size:.92rem;padding:.55em .6em;border:1px solid var(--line);border-radius:2px;background:var(--card)}
.filter-block select:focus{outline:none;border-color:var(--ink)}

.filters .btn-block{margin-top:8px}
.filter-reset{display:block;text-align:center;margin-top:10px;font-size:.86rem;color:var(--steel);text-decoration:underline}
.filter-reset:hover{color:var(--accent)}

/* ---------- Empty ---------- */
.empty,.empty-page{background:var(--card);border:1px solid var(--line);border-radius:3px;padding:46px 30px;text-align:center}
.empty-page{margin:54px auto;max-width:520px}
.empty-title{font-family:var(--display);font-weight:600;font-size:1.5rem;margin:0 0 8px}
.empty p{color:var(--steel);margin:0 0 18px}
.big-404{font-family:var(--mono);font-size:4rem;font-weight:600;color:var(--accent);margin:0 0 6px}

/* ---------- Product page ---------- */
.product{padding:28px 24px 64px}
.crumbs{font-family:var(--mono);font-size:.8rem;color:var(--steel);margin-bottom:22px}
.crumbs a:hover{color:var(--accent)}
.product-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;margin-bottom:54px}
.product-media{background:#F7F9FA;border:1px solid var(--line);border-radius:3px;overflow:hidden}
.product-media img{width:100%;height:100%;object-fit:cover}
.product-title{font-family:var(--display);font-weight:700;font-size:2.2rem;line-height:1.1;margin:14px 0 6px}
.product-mark{font-family:var(--mono);font-size:.92rem;color:var(--steel);margin-bottom:18px}
.product-mark b{color:var(--ink)}
.product-note{color:var(--steel);margin:0 0 22px;max-width:46ch}
.spec{width:100%;border-collapse:collapse;margin-bottom:26px}
.spec th,.spec td{text-align:left;padding:11px 0;border-bottom:1px solid var(--line);font-size:.95rem;vertical-align:top}
.spec th{color:var(--steel);font-weight:500;width:42%}
.mono{font-family:var(--mono)}
.in-stock{color:#1F8A4C;font-weight:600}
.buy{display:flex;align-items:center;gap:24px;flex-wrap:wrap;padding-top:8px;border-top:2px solid var(--ink)}
.buy-price{font-family:var(--mono);font-weight:600;font-size:2rem}

/* ---------- Cart ---------- */
.cartpage{padding:34px 24px 64px}
.cart-table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);margin:20px 0 22px}
.cart-table th,.cart-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);font-size:.94rem}
.cart-table thead th{font-family:var(--mono);font-size:.72rem;letter-spacing:1px;text-transform:uppercase;color:var(--steel)}
.cart-table a:hover{color:var(--accent)}
.total-cell{font-weight:600}
.cart-table tfoot td{border-bottom:none;border-top:2px solid var(--ink);padding-top:16px}
.sum-label{text-align:right;font-weight:600;text-transform:uppercase;letter-spacing:1px;font-size:.8rem}
.grand-total{font-size:1.3rem;font-weight:600}
.link-del{background:none;border:none;color:var(--steel);font-size:1rem;cursor:pointer;padding:4px}
.link-del:hover{color:var(--accent)}
.cart-actions{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.cart-actions-right{display:flex;gap:10px}

/* ---------- Footer ---------- */
.site-footer{margin-top:40px;background:var(--ink);color:#C3CBD1}
.footer-inner{display:flex;align-items:center;gap:24px;flex-wrap:wrap;padding:26px 24px}
.footer-brand{font-family:var(--display);font-weight:700;font-size:1.2rem;letter-spacing:1px;color:#fff}
.footer-meta{font-family:var(--mono);font-size:.8rem;color:#8A949C}
.footer-note{margin-left:auto;font-size:.82rem;color:#6B757D}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:48px 24px}
  .product-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:860px){
  .header-inner{grid-template-columns:auto 1fr auto;height:auto;gap:14px;padding:14px 0;row-gap:12px}
  .main-nav{order:4;grid-column:1/-1}
  .search{order:3;grid-column:1/-1;max-width:none}
  .catalog-layout{grid-template-columns:1fr}
  .filters{position:static;border:1px solid var(--line);background:var(--card);border-radius:3px;padding:18px}
}
@media (max-width:520px){
  .wrap{padding:0 16px}
  .brand-sub{display:none}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .gate{grid-template-columns:6px 1fr}
  .gate-count{display:none}
  .cart-table thead{display:none}
  .cart-table,.cart-table tbody,.cart-table tr,.cart-table td{display:block;width:100%}
  .cart-table tr{border-bottom:2px solid var(--line);padding:8px 0}
  .cart-table td{border:none;padding:4px 16px}
  .cart-table tfoot td{display:block}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}
@media print{
  .site-header,.site-footer,.cart-actions,.btn{display:none!important}
  body{background:#fff}
}

/* ===== Правки v3: единый каталог, чертёж, модальная заявка ===== */

/* Единый герой (без панели разделов) */
.hero-single{background:var(--card);border-bottom:1px solid var(--line)}
.hero-single .wrap{padding-top:62px;padding-bottom:68px}
.hero-single .hero-text{max-width:52ch}

/* Чертёж на карточке (вместо тега раздела) */
.draw{font-family:var(--mono);font-size:.74rem;color:var(--steel);letter-spacing:.4px;align-self:flex-start}

/* Модальная форма заявки */
.modal{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(15,18,21,.55);backdrop-filter:blur(2px)}
.modal-dialog{position:relative;background:var(--card);border:1px solid var(--line);border-radius:4px;
  width:100%;max-width:440px;max-height:92vh;overflow:auto;padding:30px 30px 32px;
  box-shadow:0 24px 60px rgba(15,18,21,.28);animation:modalIn .16s ease-out}
@keyframes modalIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.modal-close{position:absolute;top:14px;right:14px;background:none;border:none;font-size:1.05rem;
  color:var(--steel);cursor:pointer;line-height:1;padding:6px;border-radius:2px}
.modal-close:hover{color:var(--ink)}
.modal-title{font-family:var(--display);font-weight:700;font-size:1.55rem;margin:0 0 4px}
.modal-product{font-family:var(--mono);font-size:.82rem;color:var(--steel);margin:0 0 20px;line-height:1.4}

.field{display:block;margin-bottom:15px}
.field-label{display:block;font-size:.85rem;font-weight:500;color:var(--steel);margin-bottom:6px}
.field-label i{color:var(--accent);font-style:normal}
.field input,.field textarea{width:100%;font-family:var(--sans);font-size:.96rem;
  padding:.66em .8em;border:1px solid var(--line);border-radius:2px;background:var(--paper);color:var(--ink);resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);background:#fff}
.field input.has-error,.field textarea.has-error{border-color:#D33A2C;background:#FEF6F5}
.field-error{display:block;color:#D33A2C;font-size:.8rem;margin-top:5px;min-height:0}
.field-error:empty{margin-top:0}
#requestForm .btn{margin-top:6px}

.modal-success{text-align:center;padding:14px 0 6px}
.success-mark{width:54px;height:54px;border-radius:50%;background:#1F8A4C;color:#fff;
  font-size:1.7rem;line-height:54px;text-align:center;margin:0 auto 14px}
.modal-success p{color:var(--steel);margin:0 0 22px}

.result-errors{list-style:none;margin:0 0 22px;padding:0;color:#D33A2C}
.result-errors li{margin:4px 0}

@media (max-width:520px){
  .modal-dialog{padding:24px 20px 26px}
}