/* ===================================
   Промлайт — Styles (Industrial Minimal)
   =================================== */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    --bg: #FFFFFF;
    --bg-soft: #F5F5F7;
    --ink: #0A0A0A;
    --ink-2: #4A4A4A;
    --ink-3: #8A8A8A;
    --line: #E5E5E7;
    --graphite: #1A1A1A;
    --signal: #FFD60A;
    --stock: #10B981;
    --error: #E0482B;

    --f-display: "Manrope", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
    --f-body: "Inter", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
    --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

    --r-btn: 8px;
    --r-card: 12px;
    --r-block: 16px;

    --gut: 32px;
    --max: 1280px;
    --sec: 120px;

    --t: 200ms ease-out;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body {
    font-family: var(--f-body);
    background: var(--bg);
    color: var(--ink-2);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; padding: 0; margin: 0; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--f-display);
    color: var(--ink);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin: 0;
}

.mono { font-family: var(--f-mono); font-weight: 400; letter-spacing: 0; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gut); }

/* ---------- Header ---------- */
.hdr {
    position: sticky; top: 0; z-index: 40;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: saturate(1.2) blur(10px);
    -webkit-backdrop-filter: saturate(1.2) blur(10px);
    transition: padding var(--t), border-color var(--t);
    border-bottom: 1px solid transparent;
}
.hdr.is-scrolled { border-bottom-color: var(--line); }
.hdr-inner {
    max-width: var(--max); margin: 0 auto; padding: 22px var(--gut);
    display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px;
    transition: padding var(--t);
}
.hdr.is-scrolled .hdr-inner { padding-top: 14px; padding-bottom: 14px; }

.logo {
    font-family: var(--f-mono); font-weight: 500;
    font-size: 18px; letter-spacing: -0.02em; color: var(--ink);
    display: inline-flex; align-items: center; gap: 8px;
}
.logo::before {
    content: ""; width: 8px; height: 8px; background: var(--ink); border-radius: 2px;
}

.nav { display: flex; justify-content: center; gap: 36px; font-size: 15px; font-weight: 500; color: var(--ink); }
.nav a { position: relative; padding: 6px 0; transition: color var(--t); }
.nav a:hover,
.nav a.is-active { color: var(--ink-2); }
.nav a.is-active::after {
    content: ""; position: absolute; bottom: 0; left: 0; right: 0;
    height: 1px; background: var(--ink);
}

.hdr-right { display: flex; align-items: center; gap: 20px; }
.phone { font-family: var(--f-mono); font-size: 14px; color: var(--ink); }

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 18px; border-radius: var(--r-btn);
    font-weight: 600; font-size: 14px; letter-spacing: -0.01em;
    transition: background var(--t), color var(--t), border-color var(--t), transform var(--t);
    white-space: nowrap;
}
.btn-primary { background: var(--graphite); color: #fff; }
.btn-primary:hover { background: #000; }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn-ghost:hover { background: var(--ink); color: #fff; }
.btn-signal { background: var(--signal); color: var(--ink); }
.btn-signal:hover { filter: brightness(.95); }
.btn-text { padding: 6px 0; color: var(--ink); font-weight: 600; }
.btn-text .arr { transition: transform var(--t); display: inline-block; }
.btn-text:hover .arr { transform: translateX(4px); }
.btn-lg { padding: 16px 24px; font-size: 15px; }

.burger { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: var(--r-btn); }
.burger span { width: 18px; height: 1.5px; background: var(--ink); position: relative; display: block; }
.burger span::before, .burger span::after {
    content: ""; position: absolute; left: 0; width: 18px; height: 1.5px; background: var(--ink);
}
.burger span::before { top: -6px; }
.burger span::after { top: 6px; }

.nav.is-open {
    display: flex !important;
    position: fixed;
    top: 0; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 80px 24px 40px;
    gap: 24px;
    font-size: 20px;
    z-index: 30;
    border-bottom: 1px solid var(--line);
}

/* ---------- Hero ---------- */
.hero { padding: 80px 0 64px; }
.hero-grid {
    display: grid; grid-template-columns: 1.15fr 1fr; gap: 64px; align-items: center;
}
.eyebrow {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--f-mono); font-size: 12px; letter-spacing: .04em; color: var(--ink-3);
    text-transform: uppercase; margin-bottom: 28px;
}
.eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--ink-3); }
.h1 { font-size: clamp(40px, 6.2vw, 72px); color: var(--ink); max-width: 14ch; font-weight: 700; }
.h1 .em { background: linear-gradient(transparent 62%, #10B981 62%, #10B981 92%, transparent 92%); padding: 0 .05em; }
.lead { margin: 28px 0 40px; font-size: 18px; color: var(--ink-2); max-width: 52ch; }
.cta-row { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; }

.hero-visual {
    position: relative; aspect-ratio: 1/1; background: var(--bg-soft);
    border-radius: var(--r-block); overflow: hidden;
}
.hero-visual svg { width: 100%; height: 100%; display: block; }
.hero-tag {
    position: absolute; top: 20px; left: 20px;
    display: inline-flex; align-items: center; gap: 8px;
    background: #fff; border: 1px solid var(--line);
    padding: 8px 12px; border-radius: 999px;
    font-family: var(--f-mono); font-size: 12px; color: var(--ink);
}
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--stock); }
.hero-badge {
    position: absolute; bottom: 20px; right: 20px;
    background: var(--ink); color: #fff;
    padding: 14px 16px; border-radius: 12px;
    font-family: var(--f-mono); font-size: 12px;
    display: flex; flex-direction: column; gap: 2px; min-width: 150px;
}
.hero-badge b { font-family: var(--f-display); font-size: 22px; letter-spacing: -0.02em; font-weight: 700; }

.stats {
    margin-top: 72px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
    display: grid; grid-template-columns: repeat(4, 1fr);
}
.stat { padding: 28px 24px; position: relative; }
.stat + .stat::before {
    content: ""; position: absolute; left: 0; top: 24px; bottom: 24px; width: 1px; background: var(--line);
}
.stat .num { font-family: var(--f-display); font-size: 36px; font-weight: 700; color: var(--ink); letter-spacing: -0.03em; line-height: 1; }
.stat .lbl { margin-top: 10px; font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .04em; }

/* ---------- Sections ---------- */
section { padding: var(--sec) 0; }
.sec-head {
    display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 56px;
}
.sec-title { font-size: clamp(32px, 4.4vw, 48px); color: var(--ink); max-width: 22ch; font-weight: 700; }
.sec-sub { color: var(--ink-2); margin-top: 16px; max-width: 52ch; }
.sec-kicker {
    font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em;
    margin-bottom: 18px; display: flex; align-items: center; gap: 10px;
}
.sec-kicker::before { content: ""; width: 24px; height: 1px; background: var(--ink-3); }

/* ---------- Catalog grid (static on homepage) ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 24px; }
.cat {
    display: block; position: relative; transition: transform var(--t);
}
.cat-img {
    aspect-ratio: 1/1; background: var(--bg-soft); border-radius: var(--r-card);
    overflow: hidden; position: relative;
}
.cat-img svg,
.cat-img img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform 500ms ease-out; }
.cat:hover .cat-img svg,
.cat:hover .cat-img img { transform: scale(1.03); }
.cat-arrow {
    position: absolute; top: 16px; right: 16px;
    width: 40px; height: 40px; border-radius: 50%; background: #fff;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transform: translate(6px, -6px); transition: opacity var(--t), transform var(--t);
}
.cat:hover .cat-arrow { opacity: 1; transform: translate(0, 0); }
.cat-meta { margin-top: 18px; display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.cat-name { font-family: var(--f-display); font-weight: 700; font-size: 22px; color: var(--ink); letter-spacing: -0.02em; }
.cat-sku { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); }

/* ---------- Process ---------- */
.proc { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.step {
    padding: 40px 28px 40px 0; border-right: 1px solid var(--line); position: relative;
}
.step:last-child { border-right: 0; }
.step:nth-child(n+2) { padding-left: 28px; }
.step-num { font-family: var(--f-mono); font-size: 13px; color: var(--ink-3); margin-bottom: 24px; }
.step-title { font-family: var(--f-display); font-weight: 700; font-size: 22px; color: var(--ink); letter-spacing: -0.02em; margin-bottom: 12px; }
.step-desc { font-size: 15px; color: var(--ink-2); max-width: 28ch; }

/* ---------- B2B dark block ---------- */
.b2b { background: var(--ink); color: #fff; padding: var(--sec) 0; border-radius: 0; }
.b2b h2 { color: #fff; font-size: clamp(32px, 4.4vw, 52px); }
.b2b .sec-kicker { color: #8A8A8A; }
.b2b .sec-kicker::before { background: #555; }
.b2b-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 80px; align-items: start; }
.b2b-text p { color: #C7C7C9; margin: 0 0 16px; font-size: 16px; max-width: 52ch; }
.b2b-list { margin-top: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 24px; border-top: 1px solid #222; padding-top: 24px; }
.b2b-list li { padding: 10px 0; border-bottom: 1px solid #222; color: #E7E7E9; font-size: 14px; display: flex; align-items: center; gap: 10px; }
.b2b-list li::before { content: ""; width: 6px; height: 6px; background: var(--signal); border-radius: 1px; }
.b2b-cta { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.b2b .btn-primary { background: var(--signal); color: var(--ink); }
.b2b .btn-primary:hover { background: #fff; }
.b2b .btn-ghost { border-color: #444; color: #fff; }
.b2b .btn-ghost:hover { background: #fff; color: var(--ink); }

.clients { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #222; border: 1px solid #222; border-radius: var(--r-block); overflow: hidden; }
.client {
    background: var(--ink); padding: 28px 16px; display: flex; align-items: center; justify-content: center;
    font-family: var(--f-display); font-weight: 700; font-size: 15px; color: #fff; letter-spacing: .02em;
    text-align: center; min-height: 96px;
}
.client .mark { display: inline-flex; align-items: center; gap: 8px; }
.client .mark::before {
    content: ""; width: 12px; height: 12px; border: 1.5px solid #fff; border-radius: 2px; transform: rotate(45deg);
}

/* ---------- Products grid (homepage hits + catalog page) ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.prod {
    background: #fff; border: 1px solid transparent; border-radius: var(--r-card);
    padding: 16px; transition: border-color var(--t), transform var(--t);
    display: flex; flex-direction: column; gap: 14px;
}
.prod:hover { border-color: var(--ink); }
.prod-img {
    aspect-ratio: 1/1; background: var(--bg-soft); border-radius: 10px; overflow: hidden; position: relative;
}
.prod-img svg { width: 100%; height: 100%; display: block; transition: transform 500ms ease-out; }
.prod:hover .prod-img svg { transform: scale(1.04); }
.prod-sku { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); }
.prod-name { font-family: var(--f-display); font-weight: 600; font-size: 16px; color: var(--ink); line-height: 1.25; letter-spacing: -0.01em; min-height: 2.5em; }
.stock { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-2); }
.stock .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--stock); }
.stock--no .dot { background: var(--ink-3); }
.stock--transit .dot { background: var(--signal); }
.prod-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; border-top: 1px solid var(--line); margin-top: auto; }
.prod-price { font-family: var(--f-mono); font-size: 13px; color: var(--ink); }
.add {
    width: 36px; height: 36px; border-radius: 8px; background: var(--bg-soft);
    display: inline-flex; align-items: center; justify-content: center;
    transition: background var(--t), color var(--t);
    color: var(--ink);
}
.add:hover { background: var(--signal); }
.add svg { width: 14px; height: 14px; }

/* ---------- Certificates ---------- */
.certs { display: flex; gap: 20px; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x mandatory; }
.certs::-webkit-scrollbar { height: 6px; }
.certs::-webkit-scrollbar-thumb { background: var(--line); border-radius: 3px; }
.cert {
    flex: 0 0 240px; aspect-ratio: 3/4; background: var(--bg-soft); border-radius: var(--r-card);
    padding: 20px; display: flex; flex-direction: column; justify-content: space-between;
    scroll-snap-align: start; position: relative; overflow: hidden;
}
.cert::before {
    content: ""; position: absolute; inset: 20px; border: 1px dashed var(--line); border-radius: 6px;
}
.cert-num { font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); position: relative; }
.cert-name { font-family: var(--f-display); font-weight: 600; font-size: 15px; color: var(--ink); letter-spacing: -0.01em; position: relative; line-height: 1.25; }
.cert-foot { font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); position: relative; display: flex; justify-content: space-between; }

/* ---------- Quotes ---------- */
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.q { border-top: 1px solid var(--ink); padding: 32px 0 0; }
.q blockquote {
    margin: 0; font-family: var(--f-display); font-weight: 500; font-size: 22px; line-height: 1.35; color: var(--ink); letter-spacing: -0.015em;
}
.q-meta { margin-top: 28px; display: flex; flex-direction: column; gap: 2px; }
.q-name { color: var(--ink); font-weight: 600; font-size: 15px; }
.q-role { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); }

/* ---------- Final CTA ---------- */
.final { background: var(--bg-soft); border-radius: var(--r-block); padding: 80px 64px; display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.final h2 { font-size: clamp(28px, 3.4vw, 42px); max-width: 18ch; }
.final .hint { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); margin-top: 14px; }
.final-form { display: flex; gap: 10px; background: #fff; padding: 6px; border-radius: 999px; border: 1px solid var(--line); }
.final-form input {
    flex: 1; border: 0; background: transparent; padding: 14px 18px; font: inherit; color: var(--ink); outline: none;
    font-size: 15px;
}
.final-form .btn { padding: 14px 22px; border-radius: 999px; }

/* ---------- Page hero (static pages) ---------- */
.page-hero { padding: 80px 0 40px; border-bottom: 1px solid var(--line); }
.page-hero__breadcrumb { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 20px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.page-hero__breadcrumb a { transition: color var(--t); }
.page-hero__breadcrumb a:hover { color: var(--ink); }
.page-hero__breadcrumb svg { opacity: .4; }
.page-hero__title { font-size: clamp(36px, 5vw, 60px); color: var(--ink); max-width: 20ch; font-weight: 700; letter-spacing: -0.02em; }
.page-hero__desc { margin-top: 20px; font-size: 18px; color: var(--ink-2); max-width: 56ch; }

/* ---------- Footer ---------- */
footer { padding: 80px 0 32px; border-top: 1px solid var(--line); margin-top: var(--sec); }
.f-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 48px; }
.f-logo { font-family: var(--f-mono); font-weight: 500; font-size: 18px; color: var(--ink); margin-bottom: 18px; display: inline-flex; align-items: center; gap: 8px; }
.f-logo::before { content: ""; width: 8px; height: 8px; background: var(--ink); border-radius: 2px; }
.f-desc { color: var(--ink-2); font-size: 14px; max-width: 32ch; margin: 0 0 20px; }
.f-contact { font-family: var(--f-mono); font-size: 13px; color: var(--ink); line-height: 1.9; }
.f-title { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 16px; }
.f-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14px; color: var(--ink-2); }
.f-list a:hover { color: var(--ink); }
.f-req { font-family: var(--f-mono); font-size: 12px; color: var(--ink-2); line-height: 1.8; }
.f-bot { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); gap: 16px; flex-wrap: wrap; }

/* ---------- Catalog page (dynamic) ---------- */
.catalog-toolbar {
    display: grid; grid-template-columns: 1fr auto auto; gap: 16px; align-items: center;
    padding: 20px 24px; background: var(--bg-soft); border-radius: var(--r-card);
    margin-bottom: 40px;
}
.catalog-toolbar__search { position: relative; display: flex; align-items: center; }
.catalog-toolbar__search svg { position: absolute; left: 14px; color: var(--ink-3); }
.catalog-toolbar__input {
    width: 100%; padding: 12px 14px 12px 44px; border: 1px solid var(--line); border-radius: var(--r-btn);
    font: inherit; font-size: 14px; background: #fff; color: var(--ink); outline: none;
    transition: border-color var(--t);
}
.catalog-toolbar__input:focus { border-color: var(--ink); }
.catalog-toolbar__toggle { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; color: var(--ink); cursor: pointer; user-select: none; font-family: var(--f-mono); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.catalog-toolbar__toggle input { display: none; }
.catalog-toolbar__toggle-slider { width: 36px; height: 20px; background: var(--line); border-radius: 999px; position: relative; transition: background var(--t); }
.catalog-toolbar__toggle-slider::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; background: #fff; border-radius: 50%; transition: transform var(--t); }
.catalog-toolbar__toggle input:checked + .catalog-toolbar__toggle-slider { background: var(--ink); }
.catalog-toolbar__toggle input:checked + .catalog-toolbar__toggle-slider::after { transform: translateX(16px); }
.catalog-toolbar__stats { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); }

.catalog-category { margin-bottom: 56px; }
.catalog-category__header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--line); margin-bottom: 24px; cursor: pointer; }
.catalog-category__title { font-family: var(--f-display); font-size: 24px; font-weight: 700; color: var(--ink); letter-spacing: -0.02em; display: flex; align-items: baseline; gap: 12px; }
.catalog-category__count { font-family: var(--f-mono); font-size: 13px; color: var(--ink-3); }
.catalog-category__stock { font-family: var(--f-mono); font-size: 12px; color: var(--ink-2); text-transform: uppercase; letter-spacing: .04em; }
.catalog-category__stock b { color: var(--stock); }

.catalog-subcats, .catalog-category__subs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
.catalog-subcat, .catalog-category__sub-pill {
    padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px;
    font-family: var(--f-mono); font-size: 12px; color: var(--ink-2);
    transition: all var(--t); text-transform: none; background: transparent; cursor: pointer;
}
.catalog-subcat:hover, .catalog-category__sub-pill:hover { border-color: var(--ink); color: var(--ink); }
.catalog-subcat.is-active, .catalog-category__sub-pill.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }

.catalog-category__chevron { transition: transform var(--t); color: var(--ink-3); }
.catalog-category.is-open .catalog-category__chevron { transform: rotate(180deg); }
.catalog-category__body { overflow: hidden; transition: max-height var(--t); }
.catalog-category:not(.is-open) .catalog-category__body { max-height: 0; }
.catalog-category__more {
    margin-top: 16px; padding: 10px 18px; border: 1px solid var(--line); border-radius: var(--r-btn);
    background: transparent; color: var(--ink); font-family: var(--f-mono); font-size: 12px;
    text-transform: uppercase; letter-spacing: .04em; transition: all var(--t);
}
.catalog-category__more:hover { border-color: var(--ink); background: var(--ink); color: #fff; }
.catalog-products__code { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); }

.catalog-products { width: 100%; border-collapse: collapse; }
.catalog-products thead { border-bottom: 1px solid var(--line); }
.catalog-products th { text-align: left; padding: 12px 16px 12px 0; font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; font-weight: 500; }
.catalog-products td { padding: 16px 16px 16px 0; border-bottom: 1px solid var(--line); font-size: 14px; color: var(--ink-2); vertical-align: middle; }
.catalog-products__name { color: var(--ink); font-weight: 500; }
.catalog-products__link { transition: color var(--t); }
.catalog-products__link:hover { color: var(--signal); }
.catalog-products__article { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); }

.stock-badge { display: inline-flex; align-items: center; gap: 8px; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-family: var(--f-mono); background: var(--bg-soft); color: var(--ink-2); }
.stock-badge__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); }
.stock-badge--yes { background: rgba(16, 185, 129, 0.08); color: var(--stock); }
.stock-badge--yes .stock-badge__dot { background: var(--stock); }
.stock-badge--transit { background: rgba(255, 214, 10, 0.12); color: #9a7f00; }
.stock-badge--transit .stock-badge__dot { background: var(--signal); }
.stock-badge--no { background: var(--bg-soft); color: var(--ink-3); }

.catalog-loading, .catalog-error, .product-not-found {
    text-align: center; padding: 80px 20px; color: var(--ink-3);
    display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.catalog-loading__spinner {
    width: 40px; height: 40px; border: 2px solid var(--line); border-top-color: var(--ink);
    border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.catalog-loading[hidden], .catalog-error[hidden], .product-not-found[hidden] { display: none !important; }
.catalog-update-info { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); display: flex; align-items: center; gap: 8px; margin-top: 40px; }

/* ---------- Product page ---------- */
.product-page {
    display: grid; grid-template-columns: 1fr 1fr; gap: 64px; padding: 40px 0 80px;
}
.product-image {
    aspect-ratio: 1/1; background: var(--bg-soft); border-radius: var(--r-block); overflow: hidden;
    display: flex; align-items: center; justify-content: center;
}
.product-image svg { max-width: 60%; max-height: 60%; }
.product-info h1 { font-size: clamp(28px, 3.2vw, 40px); letter-spacing: -0.02em; margin-bottom: 20px; }
.product-meta { display: flex; flex-direction: column; gap: 8px; padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 20px 0; }
.product-meta__item { display: flex; gap: 12px; font-size: 14px; font-family: var(--f-mono); }
.product-meta__label { color: var(--ink-3); text-transform: uppercase; font-size: 11px; letter-spacing: .06em; min-width: 120px; }
.product-meta__value { color: var(--ink); }
.product-stock { margin: 16px 0; }
.product-description { color: var(--ink-2); font-size: 15px; line-height: 1.7; margin: 24px 0; }
.product-description__title { font-family: var(--f-display); font-size: 13px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; font-weight: 500; margin-bottom: 12px; }
.product-cta { margin-top: 32px; padding-top: 32px; border-top: 1px solid var(--line); }
.product-cta__btn { padding: 16px 28px; font-size: 15px; }
.product-cta__hint { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); margin-top: 14px; }

.related-products { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
    display: flex; flex-direction: column; gap: 12px; padding: 16px;
    background: #fff; border: 1px solid transparent; border-radius: var(--r-card);
    transition: border-color var(--t);
}
.product-card:hover { border-color: var(--ink); }
.product-card__icon {
    aspect-ratio: 1/1; background: var(--bg-soft); border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
}
.product-card__icon svg { width: 40%; height: 40%; }
.product-card__name { font-family: var(--f-display); font-weight: 600; font-size: 14px; color: var(--ink); line-height: 1.3; letter-spacing: -0.01em; }
.product-card__stock { margin-top: auto; }

/* ---------- Articles page & cards ---------- */
.articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 24px; }
.article-card {
    display: flex; flex-direction: column; gap: 16px;
    transition: transform var(--t);
}
.article-card__img {
    aspect-ratio: 16/10; background: var(--bg-soft); border-radius: var(--r-card); overflow: hidden;
}
.article-card__img svg { width: 100%; height: 100%; }
.article-card__meta { display: flex; gap: 16px; font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; }
.article-card__title { font-family: var(--f-display); font-weight: 700; font-size: 20px; color: var(--ink); letter-spacing: -0.02em; line-height: 1.25; }
.article-card__excerpt { font-size: 14px; color: var(--ink-2); }

.article-filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px; }
.article-filter {
    padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px;
    font-family: var(--f-mono); font-size: 12px; color: var(--ink-2);
    transition: all var(--t); background: transparent;
}
.article-filter:hover { border-color: var(--ink); color: var(--ink); }
.article-filter.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- Article single ---------- */
.article-hero { padding: 60px 0 40px; }
.article-hero__meta { display: flex; gap: 16px; font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 24px; flex-wrap: wrap; }
.article-hero__title { font-size: clamp(28px, 3.8vw, 48px); max-width: 32ch; letter-spacing: -0.02em; font-weight: 700; color: var(--ink); line-height: 1.15; }

/*
 * Контент статьи: адаптивная ширина читаемой колонки.
 * Базовая «книжная» ширина 720px растёт пропорционально окну до 880px на широких экранах,
 * чтобы не оставалось зияющей пустоты по бокам на ноутбуках 1366–1920px.
 * На мобильном — full width (определено в @media ниже).
 */
.article-content {
    max-width: clamp(720px, calc(50vw + 240px), 880px);
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.75;
    color: var(--ink-2);
}
.article-content p { margin: 0 0 20px; }
.article-content h2 { font-size: clamp(22px, 2.4vw, 28px); margin: 40px 0 16px; color: var(--ink); letter-spacing: -0.02em; line-height: 1.25; }
.article-content h3 { font-size: clamp(18px, 1.8vw, 22px); margin: 32px 0 12px; color: var(--ink); letter-spacing: -0.01em; line-height: 1.3; }
.article-content ul, .article-content ol { margin: 0 0 20px 24px; }
.article-content ul li, .article-content ol li { list-style: revert; margin-bottom: 8px; }
.article-content strong { color: var(--ink); font-weight: 600; }
.article-content a { color: var(--ink); border-bottom: 1px solid var(--ink-3); transition: border-color var(--t); }
.article-content a:hover { border-color: var(--ink); }
.article-content code { font-family: var(--f-mono); font-size: 90%; background: var(--bg-soft); padding: 2px 6px; border-radius: 4px; word-break: break-word; }
.article-content img { max-width: 100%; height: auto; border-radius: var(--r-card); margin: 24px 0; }
.article-content blockquote { margin: 24px 0; padding: 12px 20px; border-left: 3px solid var(--ink); font-style: italic; color: var(--ink); }

/* ---------- Contact form ---------- */
.contact-form { display: flex; flex-direction: column; gap: 20px; max-width: 480px; }
.form__group { display: flex; flex-direction: column; gap: 6px; }
.form__label { font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); text-transform: uppercase; letter-spacing: .05em; }
.form__input, .form__textarea {
    border: 1px solid var(--line); border-radius: var(--r-btn); padding: 12px 14px;
    font: inherit; font-size: 14px; background: #fff; color: var(--ink); outline: none;
    transition: border-color var(--t);
}
.form__input:focus, .form__textarea:focus { border-color: var(--ink); }
.form__input.is-invalid { border-color: var(--error); }
.form__error { font-family: var(--f-mono); font-size: 11px; color: var(--error); margin-top: 4px; min-height: 14px; }
.form__success { background: var(--bg-soft); padding: 16px; border-radius: var(--r-btn); color: var(--stock); font-size: 14px; display: flex; align-items: center; gap: 10px; }

/* ---------- FAQ ---------- */
.faq { display: flex; flex-direction: column; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item__question {
    width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 20px 0; font-family: var(--f-display); font-weight: 600; font-size: 17px; color: var(--ink); letter-spacing: -0.01em;
    text-align: left; transition: color var(--t);
}
.faq-item__question:hover { color: var(--ink-2); }
.faq-item__icon { flex-shrink: 0; transition: transform var(--t); font-family: var(--f-mono); color: var(--ink-3); font-size: 20px; font-weight: 400; }
.faq-item.is-open .faq-item__icon { transform: rotate(45deg); }
.faq-item__answer { max-height: 0; overflow: hidden; transition: max-height var(--t); }
.faq-item.is-open .faq-item__answer { max-height: 400px; }
.faq-item__answer-inner { padding: 0 0 20px; color: var(--ink-2); font-size: 15px; line-height: 1.7; max-width: 720px; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
    :root { --sec: 96px; --gut: 24px; }
    .hero-grid { gap: 40px; }
    .prod-grid { grid-template-columns: repeat(3, 1fr); }
    .cat-grid { grid-template-columns: repeat(3, 1fr); }
    .b2b-grid { gap: 48px; }
    .clients { grid-template-columns: repeat(2, 1fr); }
    .final { padding: 56px 40px; }
    .related-products { grid-template-columns: repeat(3, 1fr); }
    .articles-grid { grid-template-columns: repeat(2, 1fr); }
    .product-page { gap: 40px; }
}
@media (max-width: 860px) {
    :root { --sec: 72px; }
    .nav { display: none; }
    .phone { display: none; }
    .hdr-right .btn-ghost { display: none; }
    .burger { display: flex; }
    .hero { padding: 48px 0 32px; }
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { order: -1; aspect-ratio: 4/3; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .stat + .stat::before { display: none; }
    .stat { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .stat:nth-child(2n) { border-right: 0; }
    .stat:nth-child(n+3) { border-bottom: 0; }
    .sec-head { flex-direction: column; align-items: flex-start; gap: 16px; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; }
    .cat-name { font-size: 18px; }
    .proc { grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); }
    .step { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 24px; }
    .step:nth-child(2n) { border-right: 0; }
    .step:nth-child(n+3) { border-bottom: 0; }
    .step:nth-child(n+2) { padding-left: 24px; }
    .b2b-grid { grid-template-columns: 1fr; }
    .b2b-list { grid-template-columns: 1fr; }
    .prod-grid { grid-template-columns: repeat(2, 1fr); }
    .related-products { grid-template-columns: repeat(2, 1fr); }
    .articles-grid { grid-template-columns: 1fr; }
    .quotes { grid-template-columns: 1fr; gap: 20px; }
    .final { grid-template-columns: 1fr; padding: 40px 28px; }
    .f-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .final-form { flex-direction: column; border-radius: var(--r-card); padding: 10px; gap: 8px; }
    .final-form .btn { border-radius: var(--r-btn); width: 100%; justify-content: center; }
    .final-form input { padding: 12px 14px; }
    .product-page { grid-template-columns: 1fr; gap: 32px; }
    .catalog-toolbar { grid-template-columns: 1fr; }
    .catalog-products thead { display: none; }
    .catalog-products, .catalog-products tbody, .catalog-products tr, .catalog-products td { display: block; width: 100%; }
    .catalog-products tr { border-bottom: 1px solid var(--line); padding: 16px 0; }
    .catalog-products td { border: 0; padding: 2px 0; }
    /* Контакты: 2 колонки → 1 на мобильном (карты, инфо+форма, реквизиты) */
    .wrap [style*="grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; gap: 32px !important; }
    /* Статья: на мобильном full width, без читательской колонки 720+ */
    .article-content { max-width: 100%; font-size: 16px; line-height: 1.7; }
    .article-hero { padding: 32px 0 20px; }
    .article-hero__title { max-width: 100%; }
}
@media (max-width: 480px) {
    :root { --gut: 20px; }
    .h1 { font-size: 40px; }
    .stats .num { font-size: 28px; }
    .product-meta__item { flex-direction: column; gap: 2px; }
}