/* NASTEEL · Industrial Tech · mobile-first */

:root {
  --graphite: #14181f;
  --graphite-2: #1b212b;
  --steel: #2b3442;
  --steel-line: #3a4452;
  --mist: #8b95a5;
  --paper: #ffffff;
  --paper-2: #f2f4f8;
  --ink: #17202c;
  --ink-soft: #4c586a;
  --accent: #1f6fe0;
  --accent-2: #2f7bff;
  --accent-deep: #1857c9;
  --wa: #1fae54;
  --radius: 14px;
  --shadow: 0 18px 44px -18px rgba(10, 20, 40, .35);
  --font-head: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --header-h: 64px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

[id] { scroll-margin-top: calc(var(--header-h) + 12px); }

.container { width: min(1200px, 100% - 40px); margin-inline: auto; }

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.15;
  text-transform: uppercase;
  letter-spacing: .015em;
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--accent); color: #fff; padding: 10px 18px; border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-body); font-weight: 700; font-size: 15px;
  padding: 14px 26px; border-radius: 10px; border: 0; cursor: pointer;
  text-decoration: none; text-align: center; line-height: 1.25;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn:active { transform: translateY(1px); }
.btn-accent {
  background: var(--accent); color: #fff;
  box-shadow: 0 12px 28px -10px rgba(31, 111, 224, .55);
}
.btn-accent:hover { background: var(--accent-2); box-shadow: 0 16px 34px -10px rgba(31, 111, 224, .7); transform: translateY(-2px); }
.btn-dark { background: var(--graphite); color: #fff; }
.btn-dark:hover { background: var(--steel); transform: translateY(-2px); }
.btn-ghost {
  background: rgba(255, 255, 255, .07); color: #fff;
  border: 1px solid rgba(255, 255, 255, .35); backdrop-filter: blur(4px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .16); transform: translateY(-2px); }
.btn-wa { background: var(--wa); color: #fff; }
.btn-wa:hover { background: #23c261; transform: translateY(-2px); }
.btn-lg { padding: 17px 30px; font-size: 16px; }
.btn-sm { padding: 10px 18px; font-size: 14px; }
.ic { width: 20px; height: 20px; flex: none; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  background: rgba(20, 24, 31, .55);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  transition: background .3s ease;
}
.site-header.scrolled { background: rgba(20, 24, 31, .92); }
.header-inner { display: flex; align-items: center; gap: 18px; height: 100%; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-logo { height: 36px; width: auto; display: block; }
.footer-brand .brand-logo { height: 40px; }
@media (max-width: 560px) { .brand-logo { height: 30px; } }
.main-nav { display: none; gap: 26px; margin-inline: auto; }
.main-nav a {
  color: #ccd4e0; text-decoration: none; font-size: 14.5px; font-weight: 600;
  transition: color .2s ease;
}
.main-nav a:hover { color: #fff; }
.header-actions { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.header-phone {
  display: none; color: #fff; text-decoration: none; font-weight: 800; font-size: 15px;
  letter-spacing: .01em;
}
.header-phone:hover { color: var(--accent-2); }
.header-actions .btn-accent { display: none; }

.burger {
  width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.25); border-radius: 10px;
  background: transparent; cursor: pointer; display: grid; place-content: center; gap: 5px;
}
.burger span { width: 20px; height: 2px; background: #fff; transition: transform .3s ease, opacity .3s ease; }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile nav panel */
@media (max-width: 979.98px) {
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    display: flex; flex-direction: column; gap: 0;
    background: rgba(20, 24, 31, .97); backdrop-filter: blur(12px);
    padding: 10px 24px 22px;
    border-bottom: 1px solid rgba(255,255,255,.08);
    transform: translateY(-12px); opacity: 0; pointer-events: none;
    transition: transform .3s ease, opacity .3s ease;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav a { padding: 13px 0; font-size: 17px; border-bottom: 1px solid rgba(255,255,255,.07); }
  .main-nav a:last-child { border-bottom: 0; }
}
@media (min-width: 980px) {
  .main-nav { display: flex; }
  .burger { display: none; }
  .header-phone { display: inline; }
  .header-actions .btn-accent { display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff; background: var(--graphite);
  display: flex; flex-direction: column;
  min-height: 100svh; padding-top: calc(var(--header-h) + 40px);
}
.hero-bg, .hero-bg img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.hero-bg img { object-position: 68% 50%; }
.hero-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(13, 17, 24, .96) 0%, rgba(13, 17, 24, .82) 42%, rgba(13, 17, 24, .45) 75%, rgba(13, 17, 24, .55) 100%),
    linear-gradient(0deg, rgba(13, 17, 24, .9) 0%, rgba(13, 17, 24, 0) 40%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .16; pointer-events: none;
  background-image:
    linear-gradient(rgba(139, 149, 165, .5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 149, 165, .5) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(115deg, rgba(0,0,0,.9), transparent 65%);
  -webkit-mask-image: linear-gradient(115deg, rgba(0,0,0,.9), transparent 65%);
}
.hero-inner { position: relative; z-index: 2; padding-bottom: 46px; flex: 1; display: flex; flex-direction: column; justify-content: center; }
.hero-eyebrow {
  font-size: 12.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: #9db1cc; margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(26px, 4.6vw, 46px);
  max-width: 26ch; font-weight: 700; color: #fff;
}
.hero-sub {
  margin-top: 18px; max-width: 56ch; font-size: clamp(15.5px, 2vw, 18px);
  color: #c3cdda; font-weight: 500;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero-chips { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.hero-chips li {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13.5px; font-weight: 700; color: #dfe6ef;
  border: 1px solid rgba(158, 178, 204, .35); border-radius: 999px;
  padding: 9px 16px; background: rgba(20, 26, 36, .55); backdrop-filter: blur(3px);
}
.hero-chips .ic { width: 17px; height: 17px; color: var(--accent-2); }

.hero-stats {
  position: relative; z-index: 2;
  background: rgba(15, 19, 26, .78); backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255, 255, 255, .1);
}
.stats-row {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 18px 12px; padding: 24px 0;
}
.stat b {
  display: block; font-family: var(--font-head); font-weight: 700;
  font-size: clamp(24px, 3.4vw, 36px); color: #fff; line-height: 1.05;
  white-space: nowrap;
}
.stat b .counter { font: inherit; color: inherit; display: inline; }
.stat span { font-size: 12.5px; color: #97a4b6; font-weight: 600; line-height: 1.35; display: block; margin-top: 3px; }
@media (min-width: 720px) { .stats-row { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1080px) { .stats-row { grid-template-columns: repeat(6, 1fr); } }

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 9vw, 110px) 0; }
.section-light { background: var(--paper); }
.section-steel { background: var(--paper-2); }
.section-dark { background: var(--graphite); color: #e7ecf3; }

.section-head { max-width: 780px; margin-bottom: clamp(34px, 5vw, 56px); }
.section-eyebrow {
  display: inline-block; font-size: 12.5px; font-weight: 800; letter-spacing: .16em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 14px;
}
.section-dark .section-eyebrow { color: var(--accent-2); }
.section-head h2, .kb-body h2, .raschet-info h2 { font-size: clamp(24px, 3.6vw, 40px); }
.section-dark h2 { color: #fff; }
.section-lead { margin-top: 16px; color: var(--ink-soft); font-size: clamp(15px, 1.8vw, 17px); }
.section-dark .section-lead { color: #a9b4c4; }

/* ---------- Catalog ---------- */
.catalog-grid { display: grid; gap: 22px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .catalog-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .catalog-grid { grid-template-columns: repeat(3, 1fr); } }
/* пара карт (склады) занимает всю ширину ряда, делится на 2 равные колонки */
.cat-pair { grid-column: 1 / -1; display: grid; gap: 22px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .cat-pair { grid-template-columns: repeat(2, 1fr); } }

.cat-card {
  display: flex; flex-direction: column; background: var(--graphite-2);
  border-radius: var(--radius); overflow: hidden; color: #e7ecf3;
  box-shadow: var(--shadow);
  transition: transform .35s ease, box-shadow .35s ease;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: 0 26px 54px -20px rgba(10, 20, 40, .5); }
.cat-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--steel); }
.cat-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.cat-card:hover .cat-media img { transform: scale(1.06); }
.cat-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(20, 24, 31, .55), transparent 45%);
}
.cat-body { position: relative; padding: 22px 22px 26px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.cat-num {
  position: absolute; top: -34px; right: 18px; z-index: 2;
  font-family: var(--font-head); font-weight: 700; font-size: 44px; line-height: 1;
  color: #fff; opacity: .9; text-shadow: 0 4px 18px rgba(0,0,0,.5);
}
.cat-body h3 { font-size: 21px; color: #fff; }
.cat-body p { font-size: 14.5px; color: #aab5c5; }
.cat-list { list-style: none; display: grid; gap: 7px; font-size: 14px; color: #c6cfdc; }
.cat-list li { padding-left: 20px; position: relative; }
.cat-list li::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 10px; height: 10px;
  background: var(--accent); clip-path: polygon(0 0, 100% 50%, 0 100%);
}
.cat-body .btn { margin-top: auto; align-self: flex-start; background: rgba(47, 123, 255, .14); border: 1px solid rgba(47, 123, 255, .5); color: #cfe0ff; }
.cat-body .btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
@media (min-width: 1080px) {
  .cat-wide, .cat-full { min-height: 400px; }
  .cat-wide .cat-media, .cat-full .cat-media { aspect-ratio: auto; position: relative; }
  .cat-wide .cat-media img, .cat-full .cat-media img { position: absolute; inset: 0; }
  .cat-wide { grid-column: span 2; flex-direction: row; }
  .cat-wide .cat-media { flex: 1.15; }
  .cat-wide .cat-body { flex: 1; padding: 30px; justify-content: center; gap: 14px; }
  .cat-wide .cat-body .btn { margin-top: 8px; }
  .cat-wide .cat-num { top: 18px; right: 22px; color: rgba(255,255,255,.22); text-shadow: none; }
  .cat-full { grid-column: 1 / -1; flex-direction: row-reverse; }
  .cat-full .cat-media { flex: 1.3; }
  .cat-full .cat-media img { object-position: 50% 38%; }
  .cat-full .cat-body { flex: 1; padding: 34px; justify-content: center; gap: 14px; }
  .cat-full .cat-body .btn { margin-top: 8px; }
  .cat-full .cat-num { top: 18px; left: 22px; right: auto; color: rgba(255,255,255,.22); text-shadow: none; }
}

/* ---------- Production ---------- */
.production { position: relative; overflow: hidden; }
.production::before {
  content: ""; position: absolute; inset: 0; opacity: .1; pointer-events: none;
  background-image:
    linear-gradient(rgba(139,149,165,.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139,149,165,.6) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: radial-gradient(circle at 85% 10%, rgba(0,0,0,.8), transparent 60%);
  -webkit-mask-image: radial-gradient(circle at 85% 10%, rgba(0,0,0,.8), transparent 60%);
}
.prod-list {
  list-style: none; position: relative; z-index: 1;
  max-width: 940px; margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,.09);
}
.prod-row {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center;
  gap: 22px; padding: 24px 6px;
  border-bottom: 1px solid rgba(255,255,255,.09);
  transition: background .3s ease;
}
.prod-row:hover { background: rgba(255,255,255,.02); }
.prod-ic-wrap {
  width: 46px; height: 46px; flex: none; display: grid; place-items: center;
  border: 1px solid rgba(31,111,224,.45); border-radius: 12px; color: var(--accent-2);
  transition: background .3s ease, color .3s ease, border-color .3s ease;
}
.prod-ic-wrap svg { width: 24px; height: 24px; }
.prod-row:hover .prod-ic-wrap { border-color: var(--accent); }
.prod-row-body h3 { font-size: 19px; color: #fff; letter-spacing: .02em; margin: 0 0 4px; }
.prod-row-body p { font-size: 14px; color: #97a4b6; margin: 0; }
.prod-n {
  font-family: var(--font-head); font-weight: 700; font-size: 42px; line-height: 1;
  color: rgba(255,255,255,.13); letter-spacing: .02em; transition: color .3s ease;
}
.prod-row:hover .prod-n { color: rgba(31,111,224,.55); }
.prod-row-otk .prod-ic-wrap { background: var(--accent); color: #fff; border-color: var(--accent); }
.prod-row-otk .prod-n { color: rgba(31,111,224,.5); }

/* ---------- Производство: фото + цифры ---------- */
.prod-showcase { position: relative; z-index: 1; display: grid; gap: 26px; align-items: center; }
@media (min-width: 900px) { .prod-showcase { grid-template-columns: 1.1fr 0.9fr; gap: 40px; } }
/* Видео-секция после первого экрана */
.section-video { background: var(--graphite); padding: clamp(30px, 5vw, 68px) 0; text-align: center; }
.section-video-head { margin-bottom: clamp(20px, 3vw, 34px); text-align: center; }
.section-video-head h2 { color: #fff; }
.section-video-sub { color: #9aa6b8; max-width: 620px; margin: 10px auto 0; font-size: 15px; }
.showcase-video {
  display: block; width: min(62%, 100% - 40px); height: auto; max-width: 1080px; margin: 0 auto;
  aspect-ratio: 16 / 9; object-fit: cover; background: #000;
  border-radius: var(--radius); border: 1px solid rgba(255,255,255,.1);
  box-shadow: 0 30px 70px rgba(0,0,0,.42);
}
@media (max-width: 700px) { .showcase-video { width: 100% - 32px; width: calc(100% - 32px); } }

.prod-gallery { display: grid; gap: 14px; }
.prod-gallery--grid { grid-template-columns: repeat(2, 1fr); }
.prod-gallery--grid img { aspect-ratio: 3 / 4; }
@media (max-width: 560px) { .prod-gallery--grid { grid-template-columns: repeat(2, 1fr); gap: 10px; } }
.prod-gallery img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; border-radius: var(--radius); display: block; border: 1px solid rgba(255,255,255,.08); }
.prod-stats { list-style: none; display: grid; }
.prod-stats li { padding: 16px 2px; border-bottom: 1px solid rgba(255,255,255,.1); }
.prod-stats li:first-child { border-top: 1px solid rgba(255,255,255,.1); }
.prod-stats b { display: block; font-family: var(--font-head); font-weight: 700; font-size: clamp(26px, 3vw, 34px); color: #fff; line-height: 1; letter-spacing: .01em; }
.prod-stats span { display: block; font-size: 14px; color: #9aa6b8; margin-top: 6px; }
@media (max-width: 560px) { .prod-stats b { font-size: 24px; } .prod-stats li { padding: 14px 2px; } }
@media (max-width: 560px) {
  .prod-row { gap: 14px; padding: 20px 2px; }
  .prod-ic-wrap { width: 40px; height: 40px; }
  .prod-row-body h3 { font-size: 16px; }
  .prod-row-body p { font-size: 13px; }
  .prod-n { font-size: 30px; }
}
.prod-note {
  margin-top: 34px; position: relative; z-index: 1;
  display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between;
  border: 1px solid var(--steel-line); border-radius: var(--radius);
  padding: 24px 26px; background: rgba(27, 33, 43, .6);
}
.prod-note p { max-width: 62ch; color: #c3cdda; font-weight: 600; font-size: 15px; }

/* ---------- KB ---------- */
.kb-grid { display: grid; gap: 36px; align-items: center; }
@media (min-width: 960px) { .kb-grid { grid-template-columns: 1.05fr 1fr; gap: 60px; } }
.kb-media { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.kb-media img { width: 100%; height: 100%; object-fit: cover; }
.kb-media-tag {
  position: absolute; left: 16px; bottom: 16px;
  background: var(--graphite); color: #fff; font-weight: 700; font-size: 13px;
  padding: 9px 16px; border-radius: 8px; letter-spacing: .04em;
}
.kb-body > * + * { margin-top: 16px; }
.kb-body p { color: var(--ink-soft); }
.kb-list { list-style: none; display: grid; gap: 10px; }
.kb-list li { padding-left: 30px; position: relative; font-weight: 600; font-size: 15px; }
.kb-list li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 18px; height: 18px;
  border-radius: 50%; background: rgba(31, 111, 224, .12);
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M6 12.5l4 4 8-9" fill="none" stroke="%231f6fe0" stroke-width="2.6" stroke-linecap="round"/></svg>');
  background-size: 12px; background-repeat: no-repeat; background-position: center;
}
.kb-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.kb-cta-note { font-size: 13.5px; color: var(--mist); font-weight: 600; }

/* ---------- Cases ---------- */
.audience-grid {
  list-style: none; display: grid; gap: 12px;
  grid-template-columns: repeat(2, 1fr); margin-bottom: clamp(34px, 5vw, 52px);
}
@media (min-width: 900px) { .audience-grid { grid-template-columns: repeat(3, 1fr); } }
.audience-grid li {
  background: var(--paper); border: 1px solid #dee4ec; border-radius: 12px;
  padding: 16px 18px; font-weight: 700; font-size: 14.5px; color: var(--ink);
  position: relative; padding-left: 42px;
  transition: transform .25s ease, border-color .25s ease;
}
.audience-grid li:hover { transform: translateY(-3px); border-color: var(--accent); }
.audience-grid li::before {
  content: ""; position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  width: 12px; height: 12px; background: var(--accent);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.case-gallery {
  display: grid; grid-auto-flow: column; grid-auto-columns: 78%;
  gap: 16px; overflow-x: auto; padding-bottom: 14px;
  scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
  margin-bottom: clamp(34px, 5vw, 52px);
}
.case-gallery::-webkit-scrollbar { height: 8px; }
.case-gallery::-webkit-scrollbar-thumb { background: #c3ccd9; border-radius: 4px; }
@media (min-width: 700px) { .case-gallery { grid-auto-columns: 44%; } }
@media (min-width: 1080px) { .case-gallery { grid-auto-columns: 31%; } }
.case-gallery figure {
  scroll-snap-align: start; border-radius: var(--radius); overflow: hidden;
  background: var(--graphite-2); box-shadow: var(--shadow); position: relative;
}
.case-gallery img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; display: block; transition: transform .5s ease; }
.case-gallery figure:hover img { transform: scale(1.05); }
.case-gallery figcaption {
  position: absolute; inset: auto 0 0 0; padding: 34px 16px 14px;
  color: #fff; font-size: 13.5px; font-weight: 700;
  background: linear-gradient(0deg, rgba(15, 19, 26, .88), transparent);
}

.trust-title {
  font-family: var(--font-head); text-transform: uppercase; letter-spacing: .12em;
  font-size: 15px; font-weight: 600; color: var(--mist); margin-bottom: 16px;
}
.trust-logos {
  list-style: none; display: grid; gap: 14px;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 560px) { .trust-logos { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 920px) { .trust-logos { grid-template-columns: repeat(6, 1fr); } }
.trust-logos li {
  background: #fff; border: 1px solid #e6e9ef; border-radius: 12px;
  height: 84px; display: grid; place-items: center; padding: 14px 16px;
  transition: box-shadow .25s ease, transform .25s ease;
}
.trust-logos li:hover { box-shadow: 0 8px 22px rgba(20,24,31,.1); transform: translateY(-2px); }
.trust-logos img { max-width: 100%; max-height: 54px; width: auto; height: auto; object-fit: contain; }

/* ---------- Docs ---------- */
.docs-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .docs-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .docs-grid { grid-template-columns: repeat(3, 1fr); } }
.doc-card {
  border: 1px solid #dee4ec; border-radius: var(--radius); padding: 24px;
  display: flex; flex-direction: column; gap: 10px; background: var(--paper);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.doc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }
.doc-mark {
  width: 62px; height: 62px; display: grid; place-content: center;
  font-family: var(--font-head); font-weight: 700; font-size: 17px; color: var(--accent);
  border: 2px solid var(--accent); border-radius: 50%; margin-bottom: 6px;
  background: rgba(31, 111, 224, .06);
}
.doc-card h3 { font-size: 17px; }
.doc-card p { font-size: 14px; color: var(--ink-soft); flex: 1; }
.doc-link {
  font-weight: 800; font-size: 14px; color: var(--accent); text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
}
.doc-link::after { content: "→"; transition: transform .25s ease; }
.doc-link:hover::after { transform: translateX(4px); }

/* ---------- Raschet ---------- */
.raschet { position: relative; overflow: hidden; }
.raschet::before {
  content: ""; position: absolute; inset: 0; opacity: .08; pointer-events: none;
  background-image:
    linear-gradient(rgba(139,149,165,.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139,149,165,.6) 1px, transparent 1px);
  background-size: 84px 84px;
}
.raschet-grid { display: grid; gap: 44px; position: relative; z-index: 1; }
@media (min-width: 1000px) { .raschet-grid { grid-template-columns: 1fr 1.05fr; gap: 64px; align-items: start; } }
.raschet-info > * + * { margin-top: 18px; }
.raschet-info p { color: #a9b4c4; }
.raschet-steps { list-style: none; display: grid; gap: 10px; }
.raschet-steps li {
  display: flex; align-items: center; gap: 14px; font-weight: 700; font-size: 15px; color: #dfe6ef;
}
.raschet-steps b {
  width: 34px; height: 34px; flex: none; display: grid; place-content: center;
  font-family: var(--font-head); color: var(--accent-2);
  border: 1px solid var(--steel-line); border-radius: 9px; background: var(--graphite-2);
}
.raschet-contact p { font-weight: 600; margin-bottom: 12px; }

.lead-form {
  background: #fff; color: var(--ink); border-radius: 18px;
  padding: clamp(22px, 3.4vw, 34px); box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .65);
  display: grid; gap: 16px; position: relative;
}
.form-row { display: grid; gap: 16px; }
@media (min-width: 620px) { .form-row { grid-template-columns: 1fr 1fr; } }
.lead-form label { display: grid; gap: 7px; font-size: 13.5px; font-weight: 800; color: var(--ink); }
.lead-form input, .lead-form select, .lead-form textarea {
  font: 500 15px/1.4 var(--font-body); color: var(--ink);
  border: 1.5px solid #d5dce6; border-radius: 10px; padding: 13px 14px;
  background: #fbfcfe; width: 100%;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus {
  outline: 0; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(31, 111, 224, .15);
}
.lead-form textarea { resize: vertical; }

.file-label { cursor: pointer; }
.file-label input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.file-btn {
  display: inline-flex; align-items: center; gap: 10px;
  border: 1.5px dashed var(--accent); color: var(--accent);
  border-radius: 10px; padding: 12px 16px; font-weight: 800; font-size: 14px;
  transition: background .2s ease;
}
.file-label:hover .file-btn { background: rgba(31, 111, 224, .07); }
.file-name { display: block; margin-top: 7px; font-size: 12.5px; font-weight: 600; color: var(--mist); }

.form-submit { width: 100%; }
.form-note { font-size: 12px; color: var(--mist); font-weight: 500; line-height: 1.5; }
.form-success[hidden] { display: none; }
.form-success {
  border: 1.5px solid var(--wa); background: #f0fbf4; border-radius: 12px;
  padding: 18px; display: grid; gap: 10px; justify-items: start;
}
.form-success b { font-size: 17px; }
.form-success p { font-size: 14px; color: var(--ink-soft); }

/* ---------- Footer ---------- */
.footer { background: #0f1319; color: #b6c0ce; padding: clamp(54px, 7vw, 80px) 0 0; }
.footer-grid { display: grid; gap: 38px; padding-bottom: 44px; }
@media (min-width: 900px) { .footer-grid { grid-template-columns: 1.2fr 1fr 1.1fr; gap: 48px; } }
.footer-col h3 {
  font-size: 15px; letter-spacing: .12em; color: #fff; margin-bottom: 18px; font-weight: 600;
}
.footer-brand p { font-size: 14px; margin-top: 16px; max-width: 40ch; }
.footer-req { font-size: 12.5px !important; color: #7d8899; }
.footer-line {
  display: flex; align-items: center; gap: 10px; color: #dfe6ef; text-decoration: none;
  font-weight: 700; font-size: 15px; padding: 7px 0;
}
.footer-line .ic { color: var(--accent-2); }
a.footer-line:hover { color: var(--accent-2); }
.footer-muted { color: #7d8899; font-weight: 500; font-size: 13.5px; }
.addr-card {
  border: 1px solid #262e3a; border-radius: 12px; padding: 16px 18px; margin-bottom: 14px;
  background: #141922;
}
.addr-card b { color: #fff; font-size: 14.5px; display: block; margin-bottom: 6px; }
.addr-card p { font-size: 14px; margin-bottom: 10px; }
.addr-links { display: flex; gap: 16px; }
.addr-links a { color: var(--accent-2); font-weight: 700; font-size: 13.5px; text-decoration: none; }
.addr-links a:hover { text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid #232a35; padding: 20px 0;
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center;
  font-size: 13px; color: #7d8899;
}
.to-top { color: #b6c0ce; text-decoration: none; font-weight: 700; }
.to-top:hover { color: #fff; }

/* ---------- FAB ---------- */
.fab-wa {
  position: fixed; right: 18px; bottom: 18px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--wa); color: #fff; display: grid; place-content: center;
  box-shadow: 0 14px 30px -8px rgba(31, 174, 84, .6);
  transition: transform .25s ease;
}
.fab-wa:hover { transform: scale(1.08); }

/* ---------- Reveal / motion ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal:nth-child(2) { transition-delay: .06s; }
.reveal:nth-child(3) { transition-delay: .12s; }
.reveal:nth-child(4) { transition-delay: .18s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .cat-card, .cat-media img, .btn, .prod-row, .case-gallery img { transition: none; }
}

/* ---------- Выпадающее меню «Каталог» (бронза как в логотипе) ---------- */
:root { --bronze: #c9a961; --bronze-2: #e2c98f; }

.nav-dd-btn, .nav-sub-btn {
  font-family: var(--font-body); background: none; border: 0; cursor: pointer;
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--bronze); font-size: 14.5px; font-weight: 700; padding: 0;
  transition: color .2s ease;
}
.nav-dd-btn:hover, .nav-sub-btn:hover { color: var(--bronze-2); }
.dd-caret { width: 11px; height: 8px; flex: none; transition: transform .25s ease; }

@media (min-width: 980px) {
  .nav-dd { position: relative; display: flex; align-items: center; }
  .nav-dd-menu, .nav-sub-menu {
    list-style: none; margin: 0; padding: 10px; min-width: 305px;
    background: rgba(18, 22, 29, .97);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, .1); border-radius: 14px;
    box-shadow: 0 26px 60px -18px rgba(0, 0, 0, .65);
    opacity: 0; pointer-events: none;
    transition: opacity .22s ease, transform .22s ease;
  }
  .nav-dd-menu { position: absolute; top: calc(100% + 15px); left: -18px; transform: translateY(8px); }
  .nav-dd-menu::before { content: ""; position: absolute; left: 0; right: 0; top: -16px; height: 16px; }
  .nav-dd:hover > .nav-dd-menu, .nav-dd.open > .nav-dd-menu, .nav-dd:focus-within > .nav-dd-menu {
    opacity: 1; transform: none; pointer-events: auto;
  }
  .nav-dd-menu a, .nav-sub-btn {
    display: flex; width: 100%; align-items: center; justify-content: space-between; gap: 12px;
    padding: 11px 14px; border-radius: 9px; text-align: left;
    color: #dfe6ef; font-size: 14.5px; font-weight: 600; text-decoration: none;
    transition: background .2s ease, color .2s ease;
  }
  .nav-dd-menu a:hover { background: rgba(47, 123, 255, .16); color: #fff; }
  .nav-sub { position: relative; }
  .nav-sub-btn { color: var(--bronze); font-weight: 700; }
  .nav-sub-btn:hover, .nav-sub.open > .nav-sub-btn { background: rgba(201, 169, 97, .12); color: var(--bronze-2); }
  .nav-sub-btn .dd-caret { transform: rotate(-90deg); }
  .nav-sub-menu { position: absolute; top: -10px; left: calc(100% + 8px); transform: translateX(8px); }
  .nav-sub-menu::before { content: ""; position: absolute; top: 0; bottom: 0; left: -10px; width: 10px; }
  .nav-sub:hover > .nav-sub-menu, .nav-sub.open > .nav-sub-menu, .nav-sub:focus-within > .nav-sub-menu {
    opacity: 1; transform: none; pointer-events: auto;
  }
}

@media (max-width: 979.98px) {
  .main-nav { max-height: calc(100dvh - var(--header-h)); overflow-y: auto; background: #12161d; }
  .nav-dd { width: 100%; }
  .nav-dd-btn {
    width: 100%; justify-content: space-between; padding: 13px 0;
    font-size: 17px; border-bottom: 1px solid rgba(255, 255, 255, .07);
  }
  .nav-dd-menu, .nav-sub-menu { list-style: none; display: none; margin: 0; padding: 2px 0 8px 16px; }
  .nav-dd.open > .nav-dd-menu, .nav-sub.open > .nav-sub-menu { display: block; }
  .nav-dd-menu a {
    display: block; padding: 11px 0; color: #ccd4e0; font-size: 15.5px; font-weight: 600;
    text-decoration: none; border-bottom: 1px solid rgba(255, 255, 255, .05);
  }
  .nav-sub-btn {
    width: 100%; justify-content: space-between; padding: 11px 0;
    font-size: 15.5px; border-bottom: 1px solid rgba(255, 255, 255, .05);
  }
  .nav-dd.open > .nav-dd-btn .dd-caret, .nav-sub.open > .nav-sub-btn .dd-caret { transform: rotate(180deg); }
}

/* ---------- Подстраницы каталога ---------- */
.page-hero {
  position: relative; overflow: hidden; background: var(--graphite); color: #fff;
  padding: calc(var(--header-h) + clamp(42px, 7vw, 76px)) 0 clamp(44px, 6vw, 68px);
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; opacity: .1; pointer-events: none;
  background-image:
    linear-gradient(rgba(139, 149, 165, .6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 149, 165, .6) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(115deg, rgba(0,0,0,.9), transparent 70%);
  -webkit-mask-image: linear-gradient(115deg, rgba(0,0,0,.9), transparent 70%);
}
.page-hero .container { position: relative; z-index: 1; }
.breadcrumb { list-style: none; display: flex; flex-wrap: wrap; gap: 7px; font-size: 13px; font-weight: 600; color: #6d7889; margin-bottom: 20px; }
.breadcrumb a { color: #9db1cc; text-decoration: none; transition: color .2s ease; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb li + li::before { content: "/"; margin-right: 7px; color: #46505f; }
.page-eyebrow {
  display: inline-block; font-size: 12.5px; font-weight: 800; letter-spacing: .16em;
  text-transform: uppercase; color: var(--bronze); margin-bottom: 14px;
}
.page-hero h1 { font-size: clamp(26px, 4.2vw, 42px); max-width: 24ch; font-weight: 700; }
.page-lead { margin-top: 16px; max-width: 66ch; color: #c3cdda; font-size: clamp(15px, 1.9vw, 17.5px); font-weight: 500; }
.page-hero .hero-cta { margin-top: 28px; }
.page-hero-grid { display: grid; gap: 30px; align-items: center; }
@media (min-width: 980px) { .page-hero-grid { grid-template-columns: 1.15fr .85fr; gap: 56px; } }
.page-hero-media {
  border-radius: var(--radius); overflow: hidden; position: relative;
  border: 1px solid rgba(255, 255, 255, .09); box-shadow: 0 30px 70px -30px rgba(0, 0, 0, .8);
}
.page-hero-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; display: block; }
@media (max-width: 979.98px) { .page-hero-media { max-width: 520px; } }

/* детальная страница стеллажа */
.detail-grid { display: grid; gap: 34px; }
@media (min-width: 980px) { .detail-grid { grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: start; } }
.detail-media { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: var(--paper-2); }
.detail-media img { width: 100%; height: auto; display: block; }
.detail-media figcaption {
  position: absolute; left: 14px; bottom: 14px;
  background: var(--graphite); color: #fff; font-weight: 700; font-size: 12.5px;
  padding: 8px 14px; border-radius: 8px; letter-spacing: .04em;
}
.detail-body > * + * { margin-top: 22px; }
.detail-body h2 { font-size: clamp(22px, 3vw, 30px); }
.detail-body h3 { font-size: 18px; margin-bottom: 12px; }
.spec-card { border: 1px solid #dee4ec; border-radius: var(--radius); background: var(--paper); overflow: hidden; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.spec-table tr:first-child th, .spec-table tr:first-child td { border-top: 0; }
.spec-table th, .spec-table td { text-align: left; padding: 13px 18px; border-top: 1px solid #e6eaf1; vertical-align: top; }
.spec-table th { color: var(--ink-soft); font-weight: 600; width: 50%; }
.spec-table td { font-weight: 800; color: var(--ink); }
@media (max-width: 480px) { .spec-table th, .spec-table td { padding: 11px 14px; } }

/* CTA-полоса */
.cta-band {
  position: relative; z-index: 1;
  display: flex; flex-wrap: wrap; gap: 20px; align-items: center; justify-content: space-between;
  border: 1px solid var(--steel-line); border-radius: var(--radius);
  padding: 26px 28px; background: rgba(27, 33, 43, .6);
}
.cta-band p { max-width: 58ch; color: #c3cdda; font-weight: 600; font-size: 15px; }
.cta-band b { color: #fff; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* страницы-магазины */
.shop-group { margin-bottom: clamp(38px, 5vw, 58px); }
.shop-group:last-child { margin-bottom: 0; }
.shop-group > h2 {
  font-size: clamp(20px, 2.6vw, 28px); margin-bottom: 6px;
  padding-left: 14px; border-left: 4px solid var(--bronze);
}
.shop-group-note { margin: 0 0 18px 18px; font-size: 14px; color: var(--ink-soft); font-weight: 500; max-width: 72ch; }
.shop-group > h2 + .shop-grid { margin-top: 18px; }
.shop-grid { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 620px) { .shop-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .shop-grid { grid-template-columns: repeat(3, 1fr); } }
.p-card {
  position: relative; display: flex; flex-direction: column; gap: 9px;
  border: 1px solid #dee4ec; border-radius: var(--radius); background: var(--paper); padding: 22px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.p-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }
.p-photo { width: 100%; height: 190px; object-fit: contain; background: #fff; border: 1px solid #eef1f5; border-radius: 10px; margin-bottom: 2px; }
.p-card h3 { font: 800 16.5px/1.35 var(--font-body); text-transform: none; letter-spacing: 0; }
.p-badge + h3 { padding-right: 96px; }
.p-size { font-size: 13.5px; color: var(--ink-soft); font-weight: 600; }
.p-price { margin-top: auto; padding-top: 8px; font-family: var(--font-head); font-size: 24px; font-weight: 700; color: var(--ink); line-height: 1; }
.p-price small { font-family: var(--font-body); font-size: 13px; font-weight: 700; color: var(--mist); letter-spacing: .02em; }
.p-price.p-price-req { font-family: var(--font-body); font-size: 15px; font-weight: 800; color: var(--ink-soft); }
.p-card .btn { align-self: flex-start; margin-top: 4px; }
.p-badge {
  position: absolute; top: 14px; right: 14px;
  background: var(--bronze); color: #221a09; font-size: 11px; font-weight: 800;
  letter-spacing: .07em; text-transform: uppercase; padding: 5px 11px; border-radius: 999px;
}
.price-note { margin-top: 22px; font-size: 13.5px; color: var(--mist); font-weight: 600; max-width: 80ch; }

/* услуги */
.service-grid { display: grid; gap: 22px; }
@media (min-width: 700px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1080px) { .service-grid { grid-template-columns: repeat(3, 1fr); } }
.service-card {
  display: flex; flex-direction: column; background: var(--graphite-2); color: #e7ecf3;
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  transition: transform .35s ease, box-shadow .35s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: 0 26px 54px -20px rgba(10, 20, 40, .5); }
.service-media { aspect-ratio: 4 / 3; overflow: hidden; background: var(--steel); }
.service-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.service-card:hover .service-media img { transform: scale(1.05); }
.service-body { padding: 24px 24px 26px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.service-body h2 { font-size: 20px; color: #fff; }
.service-body p { font-size: 14.5px; color: #aab5c5; }
.service-body .cat-list { color: #c6cfdc; }
.service-body .btn { margin-top: auto; align-self: flex-start; background: rgba(47, 123, 255, .14); border: 1px solid rgba(47, 123, 255, .5); color: #cfe0ff; }
.service-body .btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ===== CTA в списке производственных показателей ===== */
.prod-stats .prod-cta { border-bottom: 0; padding-top: 20px; }
.prod-stats .prod-cta .btn { width: 100%; text-align: center; justify-content: center; }

/* ===== Ряд реальных сертификатов ===== */
.certs-block { margin-top: 40px; }
.certs-title { font-family: var(--font-head, 'Oswald', sans-serif); font-size: clamp(20px, 2.4vw, 26px); margin: 0 0 6px; }
.certs-sub { color: #5a6472; font-size: 15px; max-width: 72ch; margin: 0 0 20px; }
.certs-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.cert-thumb { padding: 0; margin: 0; border: 1px solid rgba(20,30,50,.12); background: #fff; border-radius: 10px; overflow: hidden; cursor: zoom-in; box-shadow: 0 6px 20px rgba(20,30,50,.08); transition: transform .25s ease, box-shadow .25s ease; }
.cert-thumb:hover { transform: translateY(-4px); box-shadow: 0 14px 34px rgba(20,30,50,.18); }
.cert-thumb img { display: block; width: 100%; height: 240px; object-fit: cover; object-position: top center; }
@media (max-width: 900px) { .certs-row { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) { .certs-row { grid-template-columns: repeat(2, 1fr); gap: 10px; } .cert-thumb img { height: 190px; } }

/* ===== Лайтбокс сертификатов ===== */
.cert-lb { position: fixed; inset: 0; z-index: 2000; background: rgba(8,12,20,.93); display: flex; align-items: center; justify-content: center; padding: 40px; opacity: 0; transition: opacity .2s ease; }
.cert-lb[hidden] { display: none; }
.cert-lb.open { opacity: 1; }
.cert-lb__img { max-width: min(94vw, 900px); max-height: 90vh; object-fit: contain; border-radius: 6px; background: #fff; box-shadow: 0 24px 70px rgba(0,0,0,.55); }
.cert-lb__close, .cert-lb__nav { position: absolute; color: #fff; background: rgba(255,255,255,.14); border: 0; border-radius: 50%; cursor: pointer; line-height: 1; display: flex; align-items: center; justify-content: center; transition: background .2s ease; }
.cert-lb__close:hover, .cert-lb__nav:hover { background: rgba(255,255,255,.28); }
.cert-lb__close { top: 18px; right: 22px; width: 46px; height: 46px; font-size: 30px; }
.cert-lb__nav { top: 50%; transform: translateY(-50%); width: 54px; height: 54px; font-size: 36px; }
.cert-lb__prev { left: 20px; }
.cert-lb__next { right: 20px; }
@media (max-width: 560px) { .cert-lb { padding: 16px; } .cert-lb__nav { width: 44px; height: 44px; font-size: 30px; } .cert-lb__prev { left: 8px; } .cert-lb__next { right: 8px; } }

/* Блок производства: колонка галерея + кнопка видео */
.prod-gallery-col { display: flex; flex-direction: column; gap: 18px; }
.prod-video-btn { align-self: flex-start; gap: 9px; }
.prod-video-btn svg { flex: none; }
@media (max-width: 900px) { .prod-video-btn { align-self: stretch; justify-content: center; } }

/* ============ Видео-кнопка сверху блока статистики производства (главная) ============ */
.prod-stats .prod-cta--top { border-top: 0; border-bottom: 1px solid rgba(255,255,255,.1); padding-top: 0; padding-bottom: 20px; }
.prod-stats .prod-cta--top .btn { width: 100%; text-align: center; justify-content: center; }

/* ============ Каталог: видео-кнопка + блок показателей завода в page-hero ============ */
.page-video-btn { display: inline-flex; align-items: center; gap: 9px; margin-top: 26px; }
.page-video-btn svg { flex: none; }
.page-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px 12px; margin-top: 32px; }
@media (min-width: 720px) { .page-stats { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1080px) { .page-stats { grid-template-columns: repeat(6, 1fr); } }

/* ============ Каталог стеллажей: пояснение по стоимости (в тёмной CTA-секции) ============ */
.price-note {
  max-width: 940px; margin: 0 auto clamp(30px, 4vw, 44px); text-align: center;
  padding-bottom: clamp(28px, 4vw, 40px); border-bottom: 1px solid rgba(255,255,255,.1);
}
.price-note__title { color: #fff; font-size: clamp(21px, 3vw, 29px); font-weight: 700; margin-top: 10px; }
.price-note__text {
  max-width: 74ch; margin: 16px auto 0; color: #aeb8c6;
  font-size: 15.5px; line-height: 1.7; font-weight: 500;
}