.partners-intro-section {
  padding-bottom: 32px;
}

.partners-intro-section {
  padding-bottom: 32px;
}
.partners-list-section {
  padding-top: 32px;
}

:root {
  --ink: #111827;
  --graphite: #2d3340;
  --muted: #687587;
  --line: #d9e0e8;
  --soft: #f4f7f9;
  --paper: #fbfcfd;
  --panel: #ffffff;
  --steel: #8794a4;
  --accent: #2F80C9;
  --accent-dark: #1F5F96;
  --signal: #66B8D8;
  --teal: #3A9CBF;
  --mint: #dceee9;
  --shadow: 0 22px 60px rgba(17, 24, 39, 0.11);
  --shadow-soft: 0 12px 34px rgba(17, 24, 39, 0.08);
  --max: 1200px;
  color-scheme: light;
  font-family:
    Inter, "Segoe UI", Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(251, 252, 253, 0.94), rgba(251, 252, 253, 0.9)),
    url("images/volokno_karbon.jpg") center top / 980px auto;
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

.site-shell {
  min-height: 100vh;
  overflow: clip;
  background: rgba(255, 255, 255, 0.58);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(18px, 4vw, 48px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(217, 222, 229, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
}

.brand-mark {
  display: grid;
  height: 52px;
  aspect-ratio: 132 / 94;
  width: auto;
  flex: 0 0 auto;
  place-items: center;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.brand-mark img {
  width: auto;
  height: 100%;
  min-width: 0;
  min-height: 0;
  max-width: 100%;
  object-fit: contain;
  object-position: center;
}

.brand-text {
  display: grid;
  gap: 1px;
}

.brand-text strong {
  font-size: 15px;
  line-height: 1.2;
}

.brand-text small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.2;
}

.header-contacts {
  display: grid;
  grid-template-columns: auto auto;
  column-gap: 14px;
  row-gap: 2px;
  justify-items: end;
  align-items: center;
  text-align: right;
}

.header-contacts a[href^="tel:"],
.header-contacts a[href^="mailto:"] {
  grid-column: 1;
}

.header-contacts .header-cta {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.header-contacts a {
  color: var(--graphite);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}

.header-contacts a:hover {
  color: var(--accent);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: clamp(14px, 2vw, 28px);
  color: var(--graphite);
  font-size: 14px;
  font-weight: 650;
}

.site-nav a {
  position: relative;
  padding: 12px 0;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 2px;
  background: var(--accent);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

.header-cta,
.button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 760;
  line-height: 1.15;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.header-cta,
.button {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
}

.header-cta:hover,
.button:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-1px);
}

.ghost-button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.ghost-button:hover {
  border-color: var(--steel);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.mobile-call-button {
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 3px 0;
  background: var(--ink);
}

.section {
  padding: clamp(56px, 8vw, 108px) clamp(18px, 4vw, 48px);
}

.section.compact {
  padding-top: clamp(40px, 6vw, 76px);
  padding-bottom: clamp(40px, 6vw, 76px);
}

.section.alt {
  background: var(--soft);
}

.container {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  line-height: 1.06;
  letter-spacing: 0;
}

h1 {
  max-width: 900px;
  font-size: clamp(34px, 5.4vw, 68px);
}

h2 {
  font-size: clamp(25px, 3.4vw, 44px);
}

h3 {
  font-size: clamp(19px, 2.1vw, 26px);
}

p {
  margin: 0;
}

.lead {
  max-width: 760px;
  margin-top: 20px;
  color: var(--muted);
  font-size: clamp(16px, 1.9vw, 20px);
}

.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  padding: clamp(48px, 7vw, 92px) clamp(18px, 4vw, 48px) 36px;
  background:
    linear-gradient(90deg, rgba(21, 24, 28, 0.92), rgba(21, 24, 28, 0.58) 48%, rgba(21, 24, 28, 0.2)),
    url("images/vtulka-upa.jpg") center / cover;
  color: #fff;
}

.hero .container {
  display: grid;
  min-height: calc(100vh - 190px);
  align-content: end;
}

.hero h1,
.hero .lead {
  color: #fff;
}

.hero .lead {
  color: rgba(255, 255, 255, 0.84);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-actions .ghost-button {
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.hero-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin-top: clamp(46px, 8vw, 86px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.18);
}

.hero-strip a {
  min-height: 112px;
  padding: 20px;
  background: rgba(21, 24, 28, 0.72);
  color: #fff;
}

.hero-strip span {
  display: block;
  margin-bottom: 8px;
  color: var(--signal);
  font-size: 12px;
  font-weight: 850;
  text-transform: uppercase;
}

.hero-strip strong {
  display: block;
  font-size: 18px;
  line-height: 1.15;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 34px;
}

.section-head p {
  max-width: 520px;
  color: var(--muted);
}

.section-note {
  margin-top: 18px;
  max-width: 58ch;
  color: var(--muted);
}

.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric {
  min-height: 148px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.metric strong {
  display: block;
  margin-bottom: 12px;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1;
}

.metric span {
  color: var(--muted);
}

.company-tabs-section {
  background: rgba(244, 247, 249, 0.82);
}

.company-tabs-section .section-head {
  margin-bottom: 22px;
}

.company-tabs-section .section-head h2 {
  max-width: 920px;
}

.company-tabs {
  display: grid;
  grid-template-columns: minmax(220px, 260px) minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid rgba(47, 128, 201, 0.18);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.company-tabs__nav {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 16px;
  background: linear-gradient(180deg, #eef6fc, #f7fafc);
  border-right: 1px solid var(--line);
}

.company-tab {
  min-height: 0;
  padding: 13px 14px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.company-tab:focus-visible {
  outline: 3px solid rgba(47, 128, 201, 0.32);
  outline-offset: -5px;
}

.company-tab.active,
.company-tab[aria-selected="true"] {
  background: #2f80c9;
  color: #fff;
  box-shadow: 0 10px 24px rgba(47, 128, 201, 0.22);
}

.company-tab:not(.active):hover {
  border-color: rgba(47, 128, 201, 0.2);
  background: rgba(255, 255, 255, 0.82);
}

.company-tabs__body {
  min-width: 0;
  padding: clamp(24px, 3.2vw, 40px);
  background: #fff;
}

.company-tab-panel {
  align-items: start;
  gap: clamp(22px, 3.2vw, 42px);
}

.company-tab-panel.active {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 1.05fr);
}

#company-tab-iso.company-tab-panel.active {
  grid-template-columns: 1fr;
}

#company-tab-booklets.company-tab-panel.active {
  grid-template-columns: 1fr;
}

.booklet-panel__head {
  display: grid;
  gap: 8px;
}

.booklet-panel__head h3,
.booklet-panel__head p {
  margin: 0;
}

.booklet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.booklet-card {
  display: grid;
  grid-template-rows: auto 1fr;
  min-width: 0;
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.booklet-card:hover,
.booklet-card:focus-visible {
  border-color: rgba(47, 128, 201, 0.38);
  box-shadow: 0 12px 26px rgba(17, 24, 39, 0.1);
}

.booklet-card:focus-visible {
  outline: 3px solid rgba(47, 128, 201, 0.24);
  outline-offset: 2px;
}

.booklet-card__media {
  display: grid;
  aspect-ratio: 3 / 4;
  min-width: 0;
  overflow: hidden;
  place-items: center;
  border-bottom: 1px solid var(--line);
  background: #eef3f6;
}

.booklet-card__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.booklet-card__caption {
  display: grid;
  align-content: space-between;
  gap: 10px;
  min-width: 0;
  min-height: 88px;
  padding: 14px;
}

.booklet-card__caption strong {
  color: var(--ink);
  font-size: 14px;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.booklet-card__caption small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

#company-tab-iso .certificate-grid {
  margin-top: 8px;
}

@media (max-width: 520px) {
  .booklet-grid {
    grid-template-columns: 1fr;
  }
}

.company-tab-panel[hidden] {
  display: none !important;
}

.company-tab-panel h3 {
  margin-bottom: 14px;
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.14;
}

.company-tab-panel p {
  max-width: 640px;
}

.company-tab-panel .feature-list {
  margin: 0;
}

.company-tab-panel .feature-list li {
  background: var(--soft);
}

.certificate-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 14px;
}

.certificate-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.certificate-card img {
  width: 100%;
  height: clamp(220px, 22vw, 340px);
  object-fit: contain;
  object-position: top center;
  background: #fff;
}

.certificate-card figcaption {
  display: grid;
  gap: 4px;
  padding: 14px;
}

.certificate-card figcaption span {
  color: var(--muted);
  font-size: 13px;
}

.card {
  display: grid;
  overflow: hidden;
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.card-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #e8edf1;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform 260ms ease;
}

.card:hover .card-media img {
  transform: none;
}

.card-body {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 22px;
}

.card-body p {
  color: var(--muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  color: var(--graphite);
  font-size: 12px;
  font-weight: 700;
}

.tag__icon {
  display: inline-grid;
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 5px;
  background: rgba(47, 128, 201, 0.14);
  color: var(--accent-dark);
  font-size: 9px;
  font-weight: 900;
  line-height: 1;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.image-panel {
  overflow: hidden;
  border-radius: 8px;
  background: #e8edf1;
}

.image-panel img {
  width: 100%;
  height: 100%;
  min-height: 390px;
  object-fit: contain;
  object-position: center;
}

.feature-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding: 16px 18px 16px 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--graphite);
}

.feature-list li::before {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}
.about-story-products {
  max-width: 900px;
}
ul.about-story-products {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 36px;
  margin-top: 16px;
}

ul.about-story-products li {
  position: relative;
  padding: 0 0 0 24px;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
}

ul.about-story-products li::before {
  position: absolute;
  top: 8px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 0;
  background: var(--accent);
  content: "";
}

.privacy-summary__grid {
  align-items: stretch;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.privacy-card {
  display: grid;
  align-content: start;
  min-height: 100%;
}

.privacy-card h2 {
  max-width: 100%;
}

.privacy-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.privacy-list__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 72px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--graphite);
  line-height: 1.55;
}

.privacy-list__icon {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(47, 128, 201, 0.95), rgba(58, 156, 191, 0.95));
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
  box-shadow: 0 10px 20px rgba(17, 24, 39, 0.13);
}

.privacy-list__icon svg {
  width: 23px;
  height: 23px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.catalog-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.filter-button {
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--graphite);
  cursor: pointer;
  font-weight: 700;
}

.filter-button.active,
.filter-button:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.page-hero {
  padding: clamp(52px, 8vw, 96px) clamp(18px, 4vw, 48px);
  background:
    linear-gradient(110deg, rgba(21, 24, 28, 0.9), rgba(21, 24, 28, 0.52)),
    var(--hero-image, url("images/polimernye-kompozitnye.jpg")) center / cover;
  color: #fff;
}

.page-hero h1,
.page-hero .lead {
  color: #fff;
}

.page-hero .lead {
  color: rgba(255, 255, 255, 0.84);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.breadcrumbs a {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.breadcrumbs a {
  padding: 4px 0;
  cursor: pointer;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: start;
}

.product-layout > * {
  min-width: 0;
}

.product-gallery {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 12px;
}

.main-product-image {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.main-product-image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  object-position: center;
}

.thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.thumbs--many {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  padding: 2px;
}

.thumbs img {
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  object-fit: contain;
  object-position: center;
}

.detail-stack {
  display: grid;
  gap: 28px;
  min-width: 0;
}

.info-block {
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
  min-width: 0;
  scroll-margin-top: 205px;
}

.product-page-nav {
  position: sticky;
  top: 132px;
  z-index: 12;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(47, 128, 201, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 14px 34px rgba(17, 24, 39, 0.08);
  backdrop-filter: blur(14px);
  scroll-margin-top: 170px;
}

.product-page-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 10px 14px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.product-page-nav a:hover {
  border-color: rgba(47, 128, 201, 0.28);
  background: rgba(47, 128, 201, 0.12);
  color: var(--accent-dark);
}

.info-block h2,
.info-block h3 {
  margin-bottom: 16px;
}

.product-application-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-application-list li {
  position: relative;
  display: flex;
  align-items: flex-start;
  min-height: 64px;
  padding: 15px 16px 15px 42px;
  border: 1px solid rgba(47, 128, 201, 0.24);
  border-radius: 8px;
  background: #f7fbfe;
  color: var(--graphite);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.product-application-list li::before {
  position: absolute;
  top: 20px;
  left: 17px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(47, 128, 201, 0.12);
  content: "";
}

.copy-stack {
  display: grid;
  gap: 14px;
  color: var(--graphite);
}

.copy-stack p {
  max-width: 820px;
}
.about-story .copy-stack p {
  max-width: none;
}

.product-description .copy-stack {
  margin-bottom: 18px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
  min-width: 0;
}

.detail-grid span {
  min-height: 64px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--graphite);
  font-weight: 650;
}

.detail-grid--large {
  align-self: stretch;
  align-content: center;
}

.company-panel,
.partner-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.company-panel {
  display: grid;
  gap: 20px;
}

.company-panel .feature-list {
  margin-top: 12px;
}

.company-panel__group + .company-panel__group {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.panel-label {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
  text-transform: uppercase;
}

.partner-card {
  display: grid;
  gap: 12px;
  align-content: start;
}

.partner-card__logo {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: min(320px, 100%);
  min-height: 96px;
  padding: 12px 14px;
  border: 1px solid rgba(47, 128, 201, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(47, 128, 201, 0.06), rgba(255, 255, 255, 0.96)),
    #fff;
}

.partner-card__logo img {
  display: block;
  width: 100%;
  height: 78px;
  object-fit: contain;
  object-position: left center;
}

.partner-card h3 {
  font-size: clamp(20px, 2vw, 27px);
}

.partner-card p {
  color: var(--muted);
}

.partners-logo-panel {
  background:
    linear-gradient(135deg, rgba(47, 128, 201, 0.08), rgba(255, 255, 255, 0.82)),
    #edf3f7;
}

.spec-table {
  width: 100%;
  min-width: 0;
  table-layout: fixed;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.spec-table th,
.spec-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.spec-table th {
  width: 38%;
  background: var(--soft);
  color: var(--graphite);
}

.spec-table--compact {
  margin-top: 18px;
}

.detail-table-section {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.detail-table-section h4,
.detail-table-section p {
  margin: 0;
}

.detail-table-scroll {
  max-width: 100%;
  border-radius: 8px;
}

.spec-table--matrix {
  min-width: 0;
  table-layout: auto;
}

.spec-table--matrix th,
.spec-table--matrix td {
  width: auto;
  min-width: 0;
}

.spec-table .cell-nowrap {
  white-space: nowrap;
}

.material-catalog-grid .material-card .card-body {
  min-height: 330px;
}

.cta-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: clamp(28px, 4vw, 44px);
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
}

.cta-band h2,
.cta-band h3 {
  color: #fff;
}

.cta-band p {
  max-width: 650px;
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.72);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.form-grid .wide {
  grid-column: 1 / -1;
}

.form-stack {
  display: grid;
  gap: 18px;
  margin-top: 22px;
}

.field {
  display: grid;
  gap: 7px;
}

.field span {
  color: var(--graphite);
  font-size: 13px;
  font-weight: 800;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.captcha-box {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
}

.captcha-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.captcha-label {
  margin: 0;
  color: var(--graphite);
  font-size: 13px;
  font-weight: 800;
}

.captcha-question {
  margin: 0;
  color: var(--graphite);
  font-size: 16px;
  font-weight: 760;
}

.captcha-refresh {
  min-height: 38px;
  padding: 8px 14px;
}

.checkbox-list {
  display: grid;
  gap: 12px;
}

.checkbox-field {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.checkbox-field input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  accent-color: var(--accent);
}

.checkbox-field span {
  color: var(--graphite);
  font-size: 14px;
  line-height: 1.5;
  font-weight: 600;
}

.checkbox-field a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
}

.form-note {
  margin-top: 0;
  color: var(--muted);
  font-size: 13px;
}

.form-note.is-error {
  color: #a9382f;
}

.form-note.is-success {
  color: #1c6b5f;
}

.not-found {
  min-height: 58vh;
  display: grid;
  place-items: center;
  text-align: center;
}

.not-found p {
  max-width: 520px;
  margin: 16px auto 24px;
  color: var(--muted);
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(260px, 0.95fr) minmax(360px, 1.2fr) minmax(250px, 0.85fr);
  align-items: start;
  gap: clamp(24px, 4vw, 56px);
  justify-content: center;
  padding: 32px max(clamp(18px, 4vw, 48px), calc((100vw - var(--max)) / 2 + 18px));
  background: var(--ink);
  color: #fff;
}

.site-footer p,
.site-footer a {
  color: rgba(255, 255, 255, 0.74);
}

.site-footer p {
  margin: 0;
}

.site-footer strong {
  display: block;
  margin-bottom: 8px;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

.site-footer__brand {
  display: grid;
  align-items: start;
  max-width: 360px;
}

.site-footer__caption {
  margin-top: 10px;
  max-width: 100%;
}

.site-footer__nav,
.site-footer__contacts {
  display: grid;
  gap: 6px;
}

.site-footer__nav-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 28px;
}

.site-footer__nav-grid a {
  line-height: 1.35;
}

.site-footer__contacts {
  justify-items: start;
  text-align: left;
  max-width: 320px;
}

@media (max-width: 1360px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto auto;
  }

  .header-contacts {
    display: none;
  }

  .menu-toggle {
    display: inline-grid;
    justify-self: end;
  }

  .mobile-call-button {
    display: inline-flex;
    justify-self: end;
  }

  .site-footer__nav-grid {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .site-nav {
    position: fixed;
    top: 76px;
    right: 0;
    left: 0;
    z-index: 120;
    display: none;
    padding: 16px 24px 24px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 60px rgba(21, 24, 28, 0.12);
    flex-direction: column;
  }

  .site-nav.open {
    display: flex;
  }

  .header-cta {
    display: none;
  }

  .hero-strip,
  .grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .company-tabs__nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .company-tabs {
    grid-template-columns: 1fr;
  }

  .company-tab-panel.active {
    grid-template-columns: minmax(0, 0.92fr) minmax(280px, 1.08fr);
  }

  .certificate-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .hero {
    min-height: auto;
  }

  .hero .container {
    min-height: auto;
  }

  .hero-strip,
  .grid.two,
  .grid.three,
  .grid.four,
  .detail-grid,
  .split,
  .product-layout,
  .form-grid {
    grid-template-columns: 1fr;
  }
  ul.about-story-products {
    grid-template-columns: 1fr;
  }

  .section-head {
    display: grid;
    align-items: start;
  }

  .company-tab-panel.active,
  .certificate-grid {
    grid-template-columns: 1fr;
  }

  .company-tabs__body {
    padding: 18px;
  }

  .product-gallery {
    position: static;
  }

  .product-page-nav {
    top: 80px;
    z-index: 100;
  }

  .info-block,
  .product-page-nav {
    scroll-margin-top: 150px;
  }

  .cta-band {
    grid-template-columns: 1fr;
  }

  .site-footer {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__contacts {
    grid-column: 1 / -1;
    justify-items: start;
    text-align: left;
  }
}

@media (max-width: 640px) {
  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-footer__contacts {
    grid-column: auto;
  }
}

@media (max-width: 560px) {
  html,
  body {
    overflow-x: hidden;
  }

  .site-header {
    min-height: 70px;
    padding: 12px 16px;
    gap: 8px;
  }

  .brand {
    gap: 8px;
    min-width: 0;
  }

  .brand-mark {
    height: 38px;
    padding: 3px;
  }

  .brand-text strong {
    max-width: 118px;
    font-size: 12px;
  }

  .brand-text small {
    display: none;
  }

  .mobile-call-button {
    min-height: 44px;
    padding: 9px 12px;
    font-size: 12px;
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
  }

  .site-nav {
    top: 70px;
  }

  .hero,
  .page-hero {
    overflow: hidden;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(30px, 8.4vw, 36px);
    line-height: 1.08;
    overflow-wrap: anywhere;
  }

  .hero .lead,
  .page-hero .lead {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .company-tabs__nav {
    grid-template-columns: 1fr;
  }

  .company-tab {
    padding: 12px 14px;
  }

  .certificate-card img {
    height: min(118vw, 420px);
  }

  h1 {
    font-size: 38px;
  }

  .hero-actions {
    display: grid;
  }

  .captcha-head,
  .form-actions {
    display: grid;
  }

  .section,
  .page-hero {
    padding-right: 16px;
    padding-left: 16px;
  }
}

@media (max-width: 640px) {
  .product-application-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .product-application-list li {
    min-height: 58px;
    padding: 12px 12px 12px 35px;
    font-size: 13px;
  }

  .product-application-list li::before {
    top: 17px;
    left: 13px;
    width: 9px;
    height: 9px;
  }
}

@media (max-width: 400px) {
  .product-application-list {
    grid-template-columns: 1fr;
  }
}

/* Modern redesign layer */
body {
  background:
    linear-gradient(180deg, rgba(244, 247, 249, 0.7), rgba(251, 252, 253, 0) 430px),
    var(--paper);
}

.site-header {
  gap: 22px;
  padding-top: 12px;
  padding-bottom: 12px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 32px rgba(17, 24, 39, 0.07);
}

.brand-mark {
  position: relative;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.1);
}

.brand-mark::after {
  display: none;
}

.site-nav {
  gap: clamp(8px, 1.4vw, 16px);
  font-weight: 720;
}

.site-nav a {
  min-height: 38px;
  padding: 9px 10px;
  border-radius: 8px;
  transition:
    background 160ms ease,
    color 160ms ease;
}

.site-nav a:hover,
.site-nav a.active {
  background: #f0f3f6;
}

.site-nav a::after {
  right: 10px;
  bottom: 5px;
  left: 10px;
}

.header-cta,
.button {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent 38%),
    var(--accent);
  box-shadow: 0 12px 26px rgba(47, 128, 201, 0.22);
}

.header-cta:hover,
.button:hover {
  box-shadow: 0 16px 34px rgba(159, 34, 29, 0.25);
}

.ghost-button {
  background: rgba(255, 255, 255, 0.82);
}

.ghost-button:hover {
  box-shadow: var(--shadow-soft);
}

.section.alt {
  background:
    linear-gradient(135deg, rgba(58, 156, 191, 0.08), transparent 36%),
    linear-gradient(180deg, #f3f6f8, #eef3f5);
}

h1 {
  font-size: clamp(34px, 4.8vw, 62px);
}

h2 {
  font-size: clamp(25px, 3.2vw, 42px);
}

.hero {
  min-height: clamp(610px, 82svh, 760px);
  overflow: hidden;
  background:
    linear-gradient(92deg, rgba(10, 15, 24, 0.92), rgba(18, 29, 38, 0.78) 44%, rgba(17, 24, 39, 0.3)),
    linear-gradient(135deg, #202833, #7d858c),
    url("images/volokno_karbon.jpg") center / cover;
}

.hero::before,
.page-hero::before {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
}

.hero::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 76%, transparent);
  opacity: 0.42;
}

.hero .container {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: calc(clamp(610px, 82svh, 760px) - 104px);
  flex-direction: column;
  justify-content: flex-end;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-proof span {
  display: grid;
  min-width: 156px;
  gap: 2px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.hero-proof strong {
  color: #fff;
  font-size: 15px;
}

.hero-proof small {
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
}

.hero-strip {
  gap: 10px;
  border: 0;
  background: transparent;
}

.hero-strip a {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(10, 15, 24, 0.58);
  backdrop-filter: blur(14px);
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.hero-strip a::after {
  position: absolute;
  right: -24px;
  bottom: -28px;
  width: 86px;
  height: 86px;
  border: 1px solid rgba(201, 136, 47, 0.42);
  border-radius: 50%;
  content: "";
}

.hero-strip a:hover {
  border-color: rgba(201, 136, 47, 0.62);
  background: rgba(10, 15, 24, 0.72);
  transform: translateY(-2px);
}

.metric {
  position: relative;
  overflow: hidden;
  border-color: rgba(217, 224, 232, 0.9);
  background:
    linear-gradient(135deg, rgba(58, 156, 191, 0.08), transparent 42%),
    #fff;
  box-shadow: var(--shadow-soft);
}

.metric::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--teal), var(--signal));
  content: "";
}

.card {
  position: relative;
  border-color: rgba(217, 224, 232, 0.92);
  box-shadow: var(--shadow-soft);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.card:hover {
  border-color: rgba(58, 156, 191, 0.42);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.card-media,
.image-panel,
.main-product-image {
  position: relative;
  background:
    linear-gradient(135deg, rgba(58, 156, 191, 0.2), rgba(47, 128, 201, 0.14)),
    repeating-linear-gradient(135deg, #e9eef3 0, #e9eef3 10px, #f5f7f9 10px, #f5f7f9 20px);
  isolation: isolate;
}

.card-media img,
.image-panel img,
.main-product-image img {
  position: relative;
  z-index: 1;
}

.card-media.is-image-missing::after,
.image-panel.is-image-missing::after,
.main-product-image.is-image-missing::after {
  position: absolute;
  inset: auto 18px 18px;
  z-index: 2;
  color: rgba(17, 24, 39, 0.74);
  content: attr(data-fallback);
  font-size: 13px;
  font-weight: 760;
  line-height: 1.25;
}

.card-media.is-image-missing::before,
.image-panel.is-image-missing::before,
.main-product-image.is-image-missing::before {
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 8px;
  content: "";
}

.card-link {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 32px;
  margin-top: 4px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 820;
}

.tag {
  border-color: rgba(58, 156, 191, 0.16);
  background: var(--mint);
  color: #225961;
  font-weight: 760;
}

.image-panel,
.main-product-image,
[data-request-form],
.spec-table {
  box-shadow: var(--shadow-soft);
}

.feature-list li {
  box-shadow: 0 8px 24px rgba(17, 24, 39, 0.04);
}

.catalog-toolbar {
  position: sticky;
  top: 88px;
  z-index: 5;
  padding: 10px;
  border: 1px solid rgba(217, 224, 232, 0.82);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.filter-button {
  border-color: transparent;
  background: transparent;
  font-weight: 760;
}

.filter-button.active,
.filter-button:hover {
  border-color: rgba(17, 24, 39, 0.08);
  background: var(--ink);
}

.page-hero {
  position: relative;
  display: flex;
  min-height: 440px;
  align-items: flex-end;
  overflow: hidden;
  background:
    linear-gradient(108deg, rgba(10, 15, 24, 0.92), rgba(17, 24, 39, 0.68) 48%, rgba(17, 24, 39, 0.32)),
    linear-gradient(135deg, #1b222c, #7e878d),
    var(--hero-image, url("images/polimernye-kompozitnye.jpg")) center / cover;
}

.page-hero::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.38;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.spec-table {
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
  border-bottom: 0;
}

.cta-band {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(47, 128, 201, 0.98), rgba(31, 95, 150, 0.96) 48%, rgba(58, 156, 191, 0.96)),
    var(--ink);
  box-shadow: var(--shadow);
}

.cta-band::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 54px 54px;
  content: "";
  opacity: 0.22;
}

.cta-band > * {
  position: relative;
  z-index: 1;
}

[data-request-form] {
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(217, 224, 232, 0.95);
  border-radius: 8px;
  background: #fff;
}

.field input,
.field textarea,
.field select {
  min-height: 50px;
  background: #f9fbfc;
  outline: none;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: rgba(58, 156, 191, 0.62);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(58, 156, 191, 0.12);
}

.site-footer {
  background:
    linear-gradient(135deg, rgba(58, 156, 191, 0.18), transparent 36%),
    var(--ink);
}

@media (max-width: 820px) {
  body {
    background-attachment: scroll;
  }

  .hero .container {
    min-height: auto;
  }

  .catalog-toolbar {
    position: static;
  }
}

@media (max-width: 560px) {
  .hero-actions,
  .hero-proof {
    display: grid;
  }

  .page-hero {
    min-height: 360px;
  }

  .card-body,
  [data-request-form] {
    padding: 20px;
  }
}

.card-media img,
.image-panel img,
.main-product-image img,
.thumbs img {
  background: #eef2f5;
}

.card-media img,
.main-product-image img {
  aspect-ratio: 4 / 3;
}

.image-panel img {
  aspect-ratio: 16 / 10;
}

.thumbs img {
  aspect-ratio: 1;
}

.image-panel img,
.main-product-image img,
.thumbs img {
  cursor: zoom-in;
}

/* Alternative technical-light visual direction */
:root {
  --ink: #14202b;
  --graphite: #304050;
  --muted: #647180;
  --line: #d7dee7;
  --soft: #eef3f7;
  --paper: #f7f9fb;
  --panel: #ffffff;
  --steel: #738294;
  --accent: #2F80C9;
  --accent-dark: #1F5F96;
  --signal: #66B8D8;
  --teal: #3A9CBF;
  --mint: #e5f3f2;
  --shadow: 0 24px 58px rgba(20, 32, 43, 0.13);
  --shadow-soft: 0 12px 28px rgba(20, 32, 43, 0.08);
}

body {
  background:
    linear-gradient(90deg, rgba(20, 32, 43, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(20, 32, 43, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, #f9fbfd 0, #eef3f7 100%);
  background-size: 38px 38px, 38px 38px, auto;
}

h1,
h2,
h3 {
  letter-spacing: 0;
}

h1 {
  max-width: 980px;
  font-size: 54px;
  line-height: 1.02;
}

h2 {
  font-size: 36px;
  line-height: 1.05;
}

.site-header {
  min-height: 82px;
  border-bottom: 1px solid rgba(215, 222, 231, 0.96);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 34px rgba(20, 32, 43, 0.08);
}

.site-header::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--teal), var(--signal));
  content: "";
}

.brand-mark {
  border-color: rgba(20, 32, 43, 0.14);
  border-radius: 6px;
  box-shadow: 0 12px 22px rgba(20, 32, 43, 0.08);
}

.brand-text strong {
  color: var(--ink);
  font-weight: 860;
}

.site-nav a {
  border: 1px solid transparent;
  border-radius: 6px;
}

.site-nav a:hover,
.site-nav a.active {
  border-color: rgba(20, 32, 43, 0.09);
  background: #eef3f7;
}

.site-nav a::after {
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--teal));
}

.button,
.header-cta {
  border-radius: 6px;
  background: var(--accent);
  box-shadow: 0 14px 28px rgba(209, 47, 47, 0.2);
}

.ghost-button {
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.92);
}

.hero {
  min-height: 720px;
  padding-top: 64px;
  background:
    linear-gradient(104deg, rgba(249, 251, 253, 0.98) 0%, rgba(249, 251, 253, 0.9) 42%, rgba(249, 251, 253, 0.24) 70%, rgba(249, 251, 253, 0.08) 100%),
    linear-gradient(180deg, rgba(20, 32, 43, 0) 0%, rgba(20, 32, 43, 0.1) 100%),
    url("images/vtulka-upa.jpg") center / cover;
  color: var(--ink);
}

.hero::before {
  background:
    linear-gradient(90deg, rgba(20, 32, 43, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(20, 32, 43, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, #000 0, #000 54%, transparent 82%);
  opacity: 0.48;
}

.hero::after {
  position: absolute;
  right: clamp(18px, 4vw, 54px);
  bottom: 34px;
  width: min(34vw, 420px);
  height: 7px;
  background: linear-gradient(90deg, var(--accent), var(--teal), var(--signal));
  content: "";
}

.hero .container {
  min-height: 600px;
  justify-content: flex-end;
}

.hero h1,
.hero .lead {
  color: var(--ink);
  text-shadow: none;
}

.hero .lead {
  max-width: 700px;
  color: #3d4b59;
}

.hero .eyebrow {
  color: var(--accent);
}

.hero-actions .ghost-button {
  border-color: rgba(20, 32, 43, 0.16);
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  box-shadow: 0 10px 24px rgba(20, 32, 43, 0.08);
}

.hero-proof span {
  border: 1px solid rgba(20, 32, 43, 0.12);
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 12px 26px rgba(20, 32, 43, 0.08);
  backdrop-filter: blur(10px);
}

.hero-proof strong {
  color: var(--ink);
}

.hero-proof small {
  color: var(--muted);
}

.hero-strip {
  gap: 12px;
  margin-top: 34px;
}

.hero-strip a {
  min-height: 118px;
  border: 1px solid rgba(20, 32, 43, 0.13);
  border-radius: 6px;
  background:
    linear-gradient(135deg, rgba(20, 127, 141, 0.09), transparent 52%),
    rgba(255, 255, 255, 0.94);
  color: var(--ink);
  box-shadow: 0 14px 30px rgba(20, 32, 43, 0.1);
}

.hero-strip a::after {
  right: 16px;
  bottom: 16px;
  width: 46px;
  height: 2px;
  border: 0;
  border-radius: 0;
  background: linear-gradient(90deg, var(--accent), var(--signal));
}

.hero-strip a:hover {
  border-color: rgba(20, 127, 141, 0.36);
  background: #fff;
}

.hero-strip span {
  color: var(--accent);
}

.metric {
  border-radius: 6px;
  background:
    linear-gradient(180deg, #fff, #f8fbfd);
  box-shadow: 0 12px 28px rgba(20, 32, 43, 0.08);
}

.metric::before {
  height: 5px;
  background: linear-gradient(90deg, var(--accent), var(--teal), var(--signal));
}

.metric strong {
  color: var(--ink);
}

.section {
  background: rgba(255, 255, 255, 0.72);
}

.section.alt {
  background:
    linear-gradient(90deg, rgba(20, 127, 141, 0.1) 1px, transparent 1px),
    linear-gradient(180deg, rgba(20, 127, 141, 0.08) 1px, transparent 1px),
    #edf3f7;
  background-size: 44px 44px, 44px 44px, auto;
}

.section-head {
  align-items: flex-start;
}

.product-neighbours .section-head .ghost-button {
  align-self: flex-start;
  margin-top: clamp(30px, 3.2vw, 40px);
}

@media (max-width: 820px) {
  .product-neighbours .section-head .ghost-button {
    margin-top: 0;
  }
}

.eyebrow {
  color: var(--accent);
}

.card {
  border-color: rgba(20, 32, 43, 0.12);
  border-radius: 6px;
  background: #fff;
  box-shadow: 0 10px 24px rgba(20, 32, 43, 0.075);
}

.card::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--accent), var(--teal));
  content: "";
}

.card:hover {
  border-color: rgba(20, 127, 141, 0.42);
  box-shadow: 0 22px 46px rgba(20, 32, 43, 0.13);
}

.card-media,
.image-panel,
.main-product-image {
  border-radius: 6px;
  background:
    linear-gradient(135deg, rgba(20, 127, 141, 0.12), rgba(209, 47, 47, 0.08)),
    repeating-linear-gradient(135deg, #e7edf3 0, #e7edf3 12px, #f7f9fb 12px, #f7f9fb 24px);
}

.card-media {
  border-bottom: 1px solid rgba(20, 32, 43, 0.09);
}

.tag {
  border-color: rgba(20, 127, 141, 0.2);
  border-radius: 6px;
  background: #e8f3f4;
  color: #1a5962;
}

.feature-list li {
  border-radius: 6px;
  border-left: 4px solid var(--teal);
}

.catalog-toolbar {
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.92);
}

.filter-button {
  border-radius: 6px;
}

.filter-button.active,
.filter-button:hover {
  background: var(--ink);
  color: #fff;
}

.page-hero {
  min-height: 430px;
  background:
    linear-gradient(104deg, rgba(249, 251, 253, 0.98), rgba(249, 251, 253, 0.9) 45%, rgba(249, 251, 253, 0.18) 78%),
    var(--hero-image, url("images/polimernye-kompozitnye.jpg")) center / cover;
  color: var(--ink);
}

.page-hero::before {
  background:
    linear-gradient(90deg, rgba(20, 32, 43, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(20, 32, 43, 0.07) 1px, transparent 1px);
  background-size: 54px 54px;
  opacity: 0.38;
}

.page-hero h1,
.page-hero .lead {
  color: var(--ink);
  text-shadow: none;
}

.page-hero .lead {
  color: #3d4b59;
}

.breadcrumbs {
  color: var(--graphite);
}

.breadcrumbs a {
  color: var(--accent);
}

.cta-band {
  border-radius: 6px;
  background:
    linear-gradient(105deg, rgba(14, 22, 31, 0.96), rgba(20, 32, 43, 0.9) 50%, rgba(20, 127, 141, 0.86)),
    url("images/volokno_karbon.jpg") center / cover;
}

[data-request-form],
.spec-table,
.image-panel,
.main-product-image {
  border-radius: 6px;
}

.field input,
.field textarea,
.field select {
  border-radius: 6px;
}

.site-footer {
  background:
    linear-gradient(105deg, rgba(20, 127, 141, 0.18), transparent 46%),
    #111b25;
}

@media (max-width: 980px) {
  h1 {
    font-size: 48px;
  }

  h2 {
    font-size: 34px;
  }

  .hero {
    min-height: 680px;
    background:
      linear-gradient(104deg, rgba(249, 251, 253, 0.98), rgba(249, 251, 253, 0.94) 58%, rgba(249, 251, 253, 0.34)),
    url("images/vtulka-upa.jpg") center / cover;
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: 36px;
    line-height: 1.04;
  }

  h2 {
    font-size: 28px;
  }

  .site-header {
    min-height: 72px;
  }

  .hero {
    min-height: 650px;
    padding-top: 42px;
    background:
      linear-gradient(180deg, rgba(249, 251, 253, 0.98), rgba(249, 251, 253, 0.93) 68%, rgba(249, 251, 253, 0.72)),
    url("images/vtulka-upa.jpg") center / cover;
  }

  .hero .container {
    min-height: auto;
  }

  .hero::after {
    right: 18px;
    left: 18px;
    width: auto;
  }

  .hero-strip a {
    min-height: 96px;
  }
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  place-items: center;
  padding: 24px;
  background: rgba(6, 10, 17, 0.68);
  backdrop-filter: blur(6px);
}

.image-lightbox.open {
  display: grid;
}

.lightbox-open {
  overflow: hidden;
}

.image-lightbox__figure {
  position: relative;
  display: grid;
  width: min(720px, calc(100vw - 48px));
  max-height: 82vh;
  gap: 10px;
  margin: 0;
  padding: 42px 18px 16px;
  justify-items: center;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.14);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

.image-lightbox__image {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: calc(82vh - 88px);
  border-radius: 6px;
  background: #fff;
  object-fit: contain;
}

.image-lightbox__caption {
  max-width: 100%;
  color: #4b5563;
  font-size: 14px;
  text-align: center;
}

.image-lightbox__close {
  position: absolute;
  top: 8px;
  right: 8px;
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  background: #f9fafb;
  color: #111827;
  cursor: pointer;
  font-size: 25px;
  line-height: 1;
}

.is-zoomable {
  cursor: zoom-in;
}

.is-zoomable:focus-visible {
  outline: 3px solid rgba(47, 144, 214, 0.7);
  outline-offset: 3px;
}

@media (max-width: 560px) {
  .image-lightbox {
    padding: 14px;
  }

  .image-lightbox__figure {
    width: calc(100vw - 28px);
    max-height: 78vh;
    padding: 40px 12px 12px;
  }

  .image-lightbox__image {
    max-width: 100%;
    max-height: calc(78vh - 78px);
  }
}

/* Variant 03: carbon precision concept */
:root {
  --ink: #12161b;
  --graphite: #2e3741;
  --muted: #6f7884;
  --line: #d8dee6;
  --soft: #f2f5f8;
  --paper: #f8fafb;
  --panel: #ffffff;
  --steel: #7d8997;
  --accent: #2F80C9;
  --accent-dark: #1F5F96;
  --signal: #66B8D8;
  --teal: #3A9CBF;
  --mint: #e7f5f4;
  --shadow: 0 26px 70px rgba(10, 14, 20, 0.18);
  --shadow-soft: 0 12px 34px rgba(10, 14, 20, 0.1);
}

body {
  background:
    linear-gradient(90deg, rgba(18, 22, 27, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(18, 22, 27, 0.04) 1px, transparent 1px),
    linear-gradient(180deg, #fbfcfd 0%, #eef2f5 100%);
  background-size: 42px 42px, 42px 42px, auto;
}

.site-header {
  min-height: 82px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background:
    linear-gradient(115deg, rgba(13, 18, 24, 0.96), rgba(24, 32, 40, 0.94)),
    #12161b;
  box-shadow: 0 18px 42px rgba(10, 14, 20, 0.2);
}

.site-header::before {
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--signal), var(--teal));
}

.brand-mark {
  border-color: rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.28);
}

.brand-text strong,
.site-nav,
.header-contacts a {
  color: #f7fafc;
}

.brand-text small {
  color: rgba(255, 255, 255, 0.62);
}

.site-nav a {
  border: 1px solid transparent;
  color: rgba(255, 255, 255, 0.82);
}

.site-nav a:hover,
.site-nav a.active {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.site-nav a::after {
  background: linear-gradient(90deg, var(--accent), var(--signal));
}

.menu-toggle {
  background: rgba(255, 255, 255, 0.95);
}

.menu-toggle span {
  background: var(--ink);
}

h1 {
  max-width: 960px;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1;
}

h2 {
  font-size: clamp(23px, 2.8vw, 36px);
}

.hero {
  min-height: clamp(660px, 86svh, 820px);
  padding-top: clamp(56px, 7vw, 96px);
  background:
    radial-gradient(circle at 82% 22%, rgba(0, 161, 167, 0.3), transparent 30%),
    linear-gradient(95deg, rgba(6, 9, 13, 0.94) 0%, rgba(14, 19, 25, 0.86) 45%, rgba(14, 19, 25, 0.48) 78%),
    url("images/volokno_karbon.jpg") center / cover;
  color: #fff;
}

.hero::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.065) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: linear-gradient(90deg, #000, #000 70%, transparent);
  opacity: 0.38;
}

.hero::after {
  right: clamp(20px, 5vw, 72px);
  bottom: clamp(22px, 4vw, 42px);
  width: min(40vw, 520px);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--signal), var(--teal));
}

.hero .container {
  min-height: calc(clamp(660px, 86svh, 820px) - 120px);
  justify-content: flex-end;
}

.hero h1,
.hero .lead {
  color: #fff;
}

.hero h1 {
  text-shadow: 0 18px 42px rgba(0, 0, 0, 0.34);
}

.hero .lead {
  max-width: 690px;
  font-size: clamp(15px, 1.65vw, 18px);
  color: rgba(255, 255, 255, 0.76);
}

.hero .eyebrow,
.eyebrow {
  color: var(--signal);
}

.hero-actions .button,
.button,
.header-cta {
  border-color: var(--accent);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent 42%),
    var(--accent);
  color: #fff;
  box-shadow: 0 16px 34px rgba(47, 128, 201, 0.24);
}

.hero-actions .ghost-button,
.ghost-button {
  border-color: rgba(18, 22, 27, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
}

.hero-actions .ghost-button {
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  box-shadow: none;
}

.hero-proof {
  gap: 12px;
}

.hero-proof span {
  min-width: 190px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-left: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.hero-proof span::before {
  display: block;
  width: 42px;
  height: 3px;
  margin-bottom: 8px;
  background: linear-gradient(90deg, var(--accent), var(--signal));
  content: "";
}

.hero-proof strong {
  color: #fff;
}

.hero-proof small {
  color: rgba(255, 255, 255, 0.66);
}

.hero-strip {
  gap: 1px;
  margin-top: clamp(34px, 5vw, 56px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.14);
}

.hero-strip a {
  min-height: 124px;
  border: 0;
  border-radius: 0;
  background:
    linear-gradient(140deg, rgba(47, 128, 201, 0.16), transparent 40%),
    rgba(11, 15, 20, 0.78);
  color: #fff;
  box-shadow: none;
}

.hero-strip a::after {
  right: 18px;
  bottom: 18px;
  width: 54px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--teal));
}

.hero-strip a:hover {
  background:
    linear-gradient(140deg, rgba(0, 161, 167, 0.18), transparent 42%),
    rgba(18, 24, 31, 0.92);
}

.hero-strip span {
  color: var(--signal);
}

.section {
  background: rgba(255, 255, 255, 0.88);
}

.section.alt {
  background:
    linear-gradient(120deg, rgba(18, 22, 27, 0.96), rgba(31, 41, 52, 0.94)),
    #12161b;
  color: #fff;
}

.section.alt h2,
.section.alt h3 {
  color: #fff;
}

.section.alt .lead,
.section.alt p,
.section.alt .section-head p,
.section.alt .card-body p {
  color: rgba(255, 255, 255, 0.68);
}

.section.alt .card {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.18);
}

.section.alt .card:hover {
  border-color: rgba(0, 161, 167, 0.42);
}

.metric {
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(0, 161, 167, 0.08), transparent 48%),
    #fff;
}

.metric strong {
  color: var(--accent);
}

.metric::before {
  background: linear-gradient(90deg, var(--accent), var(--signal), var(--teal));
}

.card {
  overflow: hidden;
  border-radius: 8px;
  background: #fff;
}

.card::before {
  width: 0;
}

.card-media {
  border-bottom: 1px solid rgba(18, 22, 27, 0.08);
  background:
    radial-gradient(circle at 75% 20%, rgba(0, 161, 167, 0.18), transparent 34%),
    #edf2f5;
}

.card-media img,
.image-panel img,
.main-product-image img {
  object-fit: contain;
}

.product-gallery .main-product-image img,
.product-gallery .thumbs img {
  object-fit: contain;
}

.card-body {
  gap: 14px;
}

.tag {
  border-color: rgba(47, 128, 201, 0.16);
  border-radius: 999px;
  background: rgba(47, 128, 201, 0.07);
  color: #8f1f21;
}

.section.alt .tag {
  border-color: rgba(231, 173, 63, 0.26);
  background: rgba(231, 173, 63, 0.12);
  color: #ffd98d;
}

.image-panel {
  border: 1px solid rgba(18, 22, 27, 0.1);
  background: #11161c;
}

.image-panel img {
  min-height: 420px;
}

.section.alt .image-panel,
.section.alt [data-request-form] {
  border-color: rgba(255, 255, 255, 0.12);
}

.feature-list li {
  border-radius: 8px;
  border-left: 0;
  background: #fff;
}

.feature-list li::before {
  border-radius: 0;
  background: linear-gradient(180deg, var(--accent), var(--signal));
}

.section.alt .feature-list li {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.82);
}

.section.alt .company-panel {
  border-color: rgba(255, 255, 255, 0.14);
  background:
    radial-gradient(circle at 100% 0%, rgba(0, 161, 167, 0.18), transparent 32%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.045)),
    rgba(8, 12, 17, 0.78);
  color: #fff;
  box-shadow: 0 22px 58px rgba(0, 0, 0, 0.28);
}

.section.alt .company-panel h2 {
  color: #fff;
}

.section.alt .company-panel .eyebrow,
.section.alt .company-panel .panel-label {
  color: var(--signal);
}

.section.alt .company-panel__group + .company-panel__group {
  border-top-color: rgba(255, 255, 255, 0.14);
}

.section.alt .company-panel .feature-list li {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.09);
  color: rgba(255, 255, 255, 0.86);
}

.section.alt .company-panel .ghost-button {
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.catalog-toolbar {
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
}

.filter-button {
  border-radius: 8px;
}

.filter-button.active,
.filter-button:hover {
  background:
    linear-gradient(135deg, rgba(47, 128, 201, 0.9), rgba(31, 95, 150, 0.96));
  color: #fff;
}

.page-hero {
  min-height: 440px;
  background:
    linear-gradient(95deg, rgba(6, 9, 13, 0.92), rgba(14, 19, 25, 0.76) 52%, rgba(14, 19, 25, 0.34)),
    var(--hero-image, url("images/volokno_karbon.jpg")) center / cover;
  color: #fff;
}

.page-hero::before {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(180deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.34;
}

.page-hero h1,
.page-hero .lead {
  color: #fff;
}

.page-hero .lead {
  color: rgba(255, 255, 255, 0.76);
}

.breadcrumbs {
  color: rgba(255, 255, 255, 0.64);
}

.breadcrumbs a {
  color: #fff;
  text-decoration: underline;
  text-decoration-color: rgba(231, 173, 63, 0.72);
  text-underline-offset: 4px;
}

.cta-band {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background:
    radial-gradient(circle at 82% 18%, rgba(0, 161, 167, 0.3), transparent 30%),
    linear-gradient(105deg, rgba(6, 9, 13, 0.94), rgba(18, 22, 27, 0.88)),
    url("images/volokno_karbon.jpg") center / cover;
}

[data-request-form] {
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(0, 161, 167, 0.04), transparent 42%),
    #fff;
}

.field input,
.field textarea,
.field select,
.captcha-box,
.checkbox-card {
  border-radius: 8px;
}

.site-footer {
  background:
    linear-gradient(115deg, rgba(47, 128, 201, 0.18), transparent 36%),
    linear-gradient(135deg, #0b0f14, #1f2933);
}

@media (max-width: 980px) {
  .site-header {
    background:
      linear-gradient(115deg, rgba(13, 18, 24, 0.98), rgba(24, 32, 40, 0.96)),
      #12161b;
  }

  .hero {
    min-height: 700px;
    background:
      linear-gradient(95deg, rgba(6, 9, 13, 0.94), rgba(14, 19, 25, 0.82) 64%, rgba(14, 19, 25, 0.56)),
      url("images/volokno_karbon.jpg") center / cover;
  }
}

@media (max-width: 820px) {
  .site-nav {
    background: rgba(18, 22, 27, 0.98);
    color: #fff;
  }

  .site-nav a {
    color: #fff;
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 72px;
  }

  .hero {
    min-height: 760px;
    padding-top: 42px;
    background:
      linear-gradient(180deg, rgba(6, 9, 13, 0.92), rgba(14, 19, 25, 0.86) 64%, rgba(14, 19, 25, 0.68)),
      url("images/volokno_karbon.jpg") center / cover;
  }

  .hero h1 {
    font-size: 36px;
    line-height: 1.04;
  }

  .hero .lead {
    color: rgba(255, 255, 255, 0.78);
  }

  .hero-proof span {
    min-width: 0;
  }

  .hero-strip {
    border: 0;
    background: transparent;
  }

  .hero-strip a {
    min-height: 98px;
    border-radius: 8px;
  }

  .image-panel img {
    min-height: 320px;
  }
}

.site-nav {
  gap: clamp(10px, 1.45vw, 22px);
}

.grid.three {
  align-items: stretch;
}

.product-card {
  height: 100%;
}

.product-card[hidden] {
  display: none !important;
}

.product-card .card-media {
  min-height: clamp(210px, 20vw, 252px);
}

.product-card .card-body {
  grid-template-rows: minmax(34px, auto) minmax(58px, auto) 1fr auto;
  min-height: 308px;
}

.product-card .tag-row {
  min-height: 34px;
  align-content: flex-start;
}

.product-card h3 {
  line-height: 1.18;
}

.product-card .card-body p {
  margin: 0;
}

.product-card .card-link {
  align-self: end;
  margin-top: auto;
}

.sector-card {
  grid-template-rows: auto 1fr;
}

.sector-card__media {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
  background: var(--soft);
}

.sector-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 260ms ease;
}

.sector-card:hover .sector-card__media img {
  transform: scale(1.025);
}

.sector-card .card-body {
  min-height: 236px;
}

.material-industries .section-head p {
  max-width: 720px;
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.industry-card {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr);
  gap: 18px;
  min-height: 100%;
  padding: 24px;
  border: 1px solid rgba(18, 22, 27, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(0, 161, 167, 0.08), transparent 46%),
    #fff;
  box-shadow: 0 14px 34px rgba(18, 22, 27, 0.08);
}

.industry-icon {
  display: inline-grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border: 1px solid rgba(47, 128, 201, 0.22);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 24%, rgba(231, 173, 63, 0.3), transparent 34%),
    rgba(47, 128, 201, 0.08);
  color: var(--accent);
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
}

.industry-card h3 {
  margin-bottom: 10px;
  font-size: clamp(18px, 1.8vw, 23px);
}

.industry-card p {
  margin: 0;
  color: var(--graphite);
}

.industry-card ul {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.industry-card li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
}

.industry-card li::before {
  position: absolute;
  top: 0.68em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--signal));
  content: "";
  transform: translateY(-50%);
}

@media (max-width: 1080px) {
  .site-nav {
    z-index: 80;
    max-height: calc(100vh - 82px);
    overflow-y: auto;
  }
}

@media (max-width: 820px) {
  .industry-grid {
    grid-template-columns: 1fr;
  }

  .industry-card {
    grid-template-columns: 56px minmax(0, 1fr);
    padding: 20px;
  }

  .industry-icon {
    width: 50px;
    height: 50px;
    font-size: 21px;
  }
}

@media (max-width: 560px) {
  .site-nav {
    top: 72px;
    max-height: calc(100vh - 72px);
  }

  .product-card .card-media {
    min-height: 220px;
  }

  .product-card .card-body {
    min-height: 0;
  }

  .industry-card {
    grid-template-columns: 1fr;
  }
}

.catalog-toolbar {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  align-items: stretch;
  z-index: 15;
  width: 100%;
  padding: 8px;
  overflow: visible;
}

.filter-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 52px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--ink);
  cursor: pointer;
  line-height: 1.18;
  text-align: center;
  white-space: normal;
}

.filter-button.active,
.filter-button[aria-selected="true"] {
  border-color: rgba(47, 128, 201, 0.28);
  background:
    linear-gradient(135deg, rgba(47, 128, 201, 0.92), rgba(31, 95, 150, 0.96));
  color: #fff;
  box-shadow: 0 10px 22px rgba(18, 22, 27, 0.16);
}

.filter-button:hover {
  border-color: rgba(47, 128, 201, 0.22);
  background: rgba(47, 128, 201, 0.08);
  color: var(--ink);
}

.filter-button.active:hover,
.filter-button[aria-selected="true"]:hover {
  color: #fff;
}

/* Product-first light concept */
:root {
  --ink: #111827;
  --graphite: #111827;
  --muted: #111827;
  --line: #dfe6ee;
  --soft: #f6f9fc;
  --paper: #ffffff;
  --panel: #ffffff;
  --steel: #8b98a8;
  --accent: #2F80C9;
  --accent-dark: #1F5F96;
  --signal: #66B8D8;
  --teal: #3A9CBF;
  --mint: #e8f6f4;
  --shadow: 0 22px 56px rgba(17, 24, 39, 0.12);
  --shadow-soft: 0 12px 30px rgba(17, 24, 39, 0.08);
}

body {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(246, 249, 252, 0.84)),
    url("images/volokno_karbon.jpg") center top / 980px auto;
}

.site-shell {
  background: rgba(255, 255, 255, 0.32);
}

.site-header {
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 14px 34px rgba(17, 24, 39, 0.08);
}

.brand-text strong,
.site-nav,
.header-contacts a {
  color: var(--ink);
}

.brand-text small {
  color: var(--muted);
}

.site-nav a {
  color: var(--graphite);
}

.site-nav a:hover,
.site-nav a.active {
  border-color: rgba(47, 128, 201, 0.14);
  background: rgba(47, 128, 201, 0.07);
  color: var(--ink);
}

.menu-toggle {
  border: 1px solid rgba(17, 24, 39, 0.1);
  background: #fff;
}

.menu-toggle span {
  background: var(--ink);
}

.hero {
  min-height: clamp(640px, 82svh, 820px);
  padding-top: clamp(24px, 4vw, 48px);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.97) 0%, rgba(255, 255, 255, 0.93) 40%, rgba(255, 255, 255, 0.8) 66%, rgba(255, 255, 255, 0) 78%),
    url("images/site-header-carbon-collage.jpg") center center / cover no-repeat,
    #eef3f6;
  color: var(--ink);
}

.hero::before {
  background:
    linear-gradient(90deg, rgba(17, 24, 39, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(17, 24, 39, 0.04) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: linear-gradient(90deg, #000, #000 58%, transparent 86%);
  opacity: 0.72;
}

.hero::after {
  background: linear-gradient(90deg, transparent, rgba(47, 128, 201, 0.7), rgba(58, 156, 191, 0.6));
}

.hero .container {
  min-height: calc(clamp(640px, 82svh, 820px) - 120px);
  align-content: start;
  justify-content: flex-start;
  padding-top: 0;
}

.hero h1 {
  max-width: 820px;
  color: var(--ink);
  text-shadow: none;
}

.hero .lead {
  max-width: 540px;
  color: var(--graphite);
}

.hero .eyebrow,
.eyebrow {
  color: var(--accent);
}

.hero-actions .ghost-button {
  border-color: rgba(17, 24, 39, 0.16);
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
}

.hero-proof span {
  border: 1px solid rgba(17, 24, 39, 0.1);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 28px rgba(17, 24, 39, 0.07);
}

.hero-proof strong {
  color: var(--ink);
}

.hero-proof small {
  color: var(--muted);
}

.hero-strip {
  border-color: rgba(17, 24, 39, 0.08);
  background: rgba(17, 24, 39, 0.08);
}

.hero-strip a {
  background:
    linear-gradient(140deg, rgba(47, 128, 201, 0.08), transparent 42%),
    rgba(255, 255, 255, 0.94);
  color: var(--ink);
}

.hero-strip a:hover {
  background:
    linear-gradient(140deg, rgba(58, 156, 191, 0.1), transparent 42%),
    #fff;
}

.hero-strip span {
  color: var(--accent);
}

.section,
.section.alt {
  background: #fff;
  color: var(--ink);
}

.section.alt {
  background:
    linear-gradient(180deg, #f7fafc 0%, #ffffff 100%);
}

.section.alt h2,
.section.alt h3,
.section.alt .lead,
.section.alt p,
.section.alt .section-head p,
.section.alt .card-body p {
  color: inherit;
}

.section.alt .lead,
.section.alt p,
.section.alt .section-head p,
.card-body p {
  color: var(--muted);
}

.section.alt .card,
.card {
  border-color: rgba(17, 24, 39, 0.09);
  background: #fff;
  color: var(--ink);
  box-shadow: 0 16px 36px rgba(17, 24, 39, 0.08);
}

.card-media {
  background:
    radial-gradient(circle at 76% 18%, rgba(58, 156, 191, 0.12), transparent 34%),
    #f4f8fb;
}

.image-panel,
.section.alt .image-panel,
.section.alt [data-request-form] {
  border-color: rgba(17, 24, 39, 0.09);
  background: #fff;
  box-shadow: 0 16px 38px rgba(17, 24, 39, 0.08);
}

.section.alt .tag,
.tag {
  border-color: rgba(47, 128, 201, 0.16);
  background: rgba(47, 128, 201, 0.07);
  color: #8f1f21;
}

.feature-list li,
.section.alt .feature-list li,
.section.alt .company-panel .feature-list li {
  border-color: rgba(17, 24, 39, 0.08);
  background: #fff;
  color: var(--graphite);
}

.company-panel,
.section.alt .company-panel {
  border-color: rgba(17, 24, 39, 0.09);
  background:
    radial-gradient(circle at 100% 0%, rgba(58, 156, 191, 0.12), transparent 32%),
    #fff;
  color: var(--ink);
  box-shadow: 0 18px 44px rgba(17, 24, 39, 0.08);
}

.section.alt .company-panel h2 {
  color: var(--ink);
}

.section.alt .company-panel .eyebrow,
.section.alt .company-panel .panel-label {
  color: var(--accent);
}

.section.alt .company-panel__group + .company-panel__group {
  border-top-color: rgba(17, 24, 39, 0.1);
}

.section.alt .company-panel .ghost-button {
  border-color: rgba(17, 24, 39, 0.14);
  background: #fff;
  color: var(--ink);
}

.page-hero {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.88) 46%, rgba(255, 255, 255, 0.78) 62%, rgba(255, 255, 255, 0) 76%),
      var(--hero-image, url("images/vtulka-upa.jpg")) center / cover;
  color: var(--ink);
}

.page-hero h1,
.page-hero .lead {
  color: var(--ink);
}

.page-hero h1 {
  font-size: clamp(29px, 3.5vw, 48px);
  line-height: 1.04;
}

.page-hero .lead {
  font-size: clamp(15px, 1.55vw, 18px);
  color: var(--graphite);
}

/* Производство, Партнёры, Контакты: светлее картинка в шапке страницы */
body.bright-hero-route .page-hero {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.8) 0%, rgba(255, 255, 255, 0.66) 46%, rgba(255, 255, 255, 0.48) 62%, rgba(255, 255, 255, 0) 76%),
      var(--hero-image, url("images/vtulka-upa.jpg")) center / cover;
}

.breadcrumbs,
.breadcrumbs a {
  color: var(--graphite);
}

.breadcrumbs a {
  text-decoration-color: rgba(47, 128, 201, 0.54);
}

.cta-band {
  border-color: rgba(17, 24, 39, 0.08);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.82)),
    url("images/vtulka-upa.jpg") right center / min(34vw, 420px) auto no-repeat,
    #f6f9fc;
  color: var(--ink);
}

.site-footer {
  background:
    linear-gradient(115deg, rgba(47, 128, 201, 0.08), transparent 36%),
    #f7fafc;
  color: var(--ink);
}

.site-footer p,
.site-footer a {
  color: var(--graphite);
}

@media (max-width: 980px) {
  .site-header,
  .site-nav {
    background: rgba(255, 255, 255, 0.98);
  }


  .site-nav a {
    color: var(--ink);
  }
}

@media (max-width: 560px) {

  .hero h1 {
    font-size: 30px;
  }

  .hero .lead {
    font-size: 15px;
    color: var(--graphite);
  }

  .hero-strip {
    background: transparent;
  }

  .hero-strip a {
    border: 1px solid rgba(17, 24, 39, 0.08);
  }
}

@media (max-width: 1180px) {
  .catalog-toolbar {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: visible;
  }

  .filter-button {
    min-width: 0;
    white-space: normal;
  }
}

@media (max-width: 560px) {
  .catalog-toolbar {
    margin-right: -18px;
    margin-left: -18px;
    padding-right: 18px;
    padding-left: 18px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .filter-button {
    min-width: 172px;
    min-height: 50px;
  }
}

.cta-band h2,
.cta-band h3 {
  color: var(--ink);
}

.cta-band p {
  color: var(--graphite);
}

.contacts-grid {
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  align-items: stretch;
  gap: clamp(24px, 4vw, 56px);
}

.contact-info-panel,
.contact-request {
  min-width: 0;
  align-self: stretch;
}

.contact-info-panel {
  display: grid;
  align-content: start;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(17, 24, 39, 0.09);
  border-radius: 8px;
  background:
    radial-gradient(circle at 100% 0%, rgba(58, 156, 191, 0.1), transparent 34%),
    #fff;
  box-shadow: 0 16px 38px rgba(17, 24, 39, 0.08);
}

.contact-info-panel h2,
.contact-request [data-request-form] h2 {
  font-size: clamp(24px, 2.5vw, 32px);
  line-height: 1.08;
}

.contact-info-panel .feature-list {
  margin-top: 24px;
}

.contact-info-panel .feature-list li {
  min-height: 58px;
}

.contact-request [data-request-form] {
  height: 100%;
  margin: 0;
  display: grid;
  align-content: start;
}

@media (max-width: 820px) {
  .contacts-grid {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .contact-info-panel,
  .contact-request [data-request-form] {
    height: auto;
  }
}

.company-overview__grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: stretch;
}

.company-overview__intro,
.company-panel--visual {
  min-height: 100%;
}

.company-overview__intro {
  display: grid;
  gap: 20px;
  align-content: start;
}

.company-overview__intro .feature-list li,
.company-panel--visual .feature-list li {
  min-height: 74px;
}

.company-panel--visual {
  align-content: start;
}

.material-group-card {
  display: block;
}

.material-group-card__media {
  overflow: hidden;
  aspect-ratio: 1;
  border: 1px solid rgba(17, 24, 39, 0.09);
  border-radius: 8px;
  background: var(--soft);
}

.material-group-card__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  padding: 10px;
}

.material-group-card .feature-list {
  gap: 8px;
  margin-top: 10px;
}

.material-group-card .feature-list li {
  padding: 12px 14px 12px 38px;
  font-size: 14px;
  line-height: 1.4;
}

.material-group-card .feature-list li::before {
  top: 16px;
  left: 16px;
}

.material-group-card .feature-list li.material-list-item {
  display: grid;
  min-height: 78px;
  padding: 0;
}

.material-group-card .feature-list li.material-list-item::before {
  display: none;
}

.material-list-item__link {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 78px;
  padding: 10px 14px 10px 10px;
  color: inherit;
  text-decoration: none;
  border-radius: 10px;
  transition: background-color 0.2s ease, box-shadow 0.2s ease;
}

.material-list-item__link:hover {
  background: rgba(47, 128, 201, 0.08);
  box-shadow: inset 0 0 0 1px rgba(47, 128, 201, 0.18);
}

.material-list-item img {
  width: 56px;
  height: 56px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 8px;
  background: #fff;
  object-fit: contain;
  object-position: center;
  padding: 5px;
}

.material-list-item__media {
  display: grid;
  width: 56px;
  height: 56px;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 8px;
  background: #fff;
}

.material-list-item__media img {
  width: 100%;
  height: 100%;
  border: 0;
}

.material-list-item__media.is-image-missing::before {
  content: attr(data-fallback);
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-align: center;
}

.material-list-item span {
  min-width: 0;
}

.material-list-item__text {
  display: block;
  max-width: 100%;
  color: var(--graphite);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
  overflow-wrap: normal;
  word-break: normal;
}

@media (max-width: 860px) {
  .company-overview__grid {
    grid-template-columns: 1fr;
  }

  .material-group-card {
    display: block;
  }
}

@media (max-width: 560px) {
  .material-group-card {
    display: block;
  }

  .material-group-card__media {
    aspect-ratio: 16 / 9;
  }
}

.industry-card {
  grid-template-columns: 1fr;
  gap: 18px;
  overflow: hidden;
  padding: 0;
}

.industry-card__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--soft);
}

.industry-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 260ms ease;
}

.industry-card:hover .industry-card__media img {
  transform: scale(1.025);
}

.industry-card__media .industry-icon {
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 52px;
  height: 52px;
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 26px rgba(17, 24, 39, 0.16);
}

.industry-card__content {
  padding: 0 24px 24px;
}

.home-industry-preview {
  background:
    linear-gradient(180deg, rgba(239, 247, 250, 0.82), rgba(255, 255, 255, 0.98));
}

.home-industry-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.home-industry-card {
  display: grid;
  overflow: hidden;
  min-height: 100%;
  border: 1px solid rgba(17, 24, 39, 0.09);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 34px rgba(17, 24, 39, 0.08);
}

.home-industry-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
}

.home-industry-card span {
  display: grid;
  min-height: 72px;
  align-items: center;
  padding: 14px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 800;
  line-height: 1.18;
}

@media (max-width: 1120px) {
  .home-industry-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .home-industry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .industry-card__content {
    padding: 0 20px 20px;
  }
}

@media (max-width: 460px) {
  .home-industry-grid {
    grid-template-columns: 1fr;
  }
}

.competency-list {
  gap: 14px;
}

.competency-list .competency-card {
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
  min-height: 132px;
  padding: 0;
  overflow: hidden;
}

.competency-list .competency-card::before {
  display: none;
}

.competency-card img {
  width: 100%;
  height: 100%;
  min-height: 132px;
  object-fit: cover;
  object-position: center;
}

.competency-card span {
  display: grid;
  align-content: center;
  gap: 8px;
  min-width: 0;
  padding: 18px 18px 18px 0;
}

.competency-card strong {
  color: var(--ink);
  font-size: 18px;
  line-height: 1.18;
}

.competency-card small {
  color: var(--graphite);
  font-size: 15px;
  line-height: 1.45;
}

@media (max-width: 560px) {
  .competency-list .competency-card {
    grid-template-columns: 1fr;
  }

  .competency-card img {
    aspect-ratio: 16 / 9;
    min-height: 0;
  }

  .competency-card span {
    padding: 0 18px 18px;
  }
}

@media (max-width: 820px) {
  body {
    background-attachment: scroll;
  }
}

.hero-proof--center {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  justify-self: center;
  width: min(100%, 1080px);
  margin-right: auto;
  margin-left: auto;
}

.hero-proof--center span {
  display: grid;
  align-content: center;
  justify-items: center;
  min-width: 0;
  text-align: center;
}

@media (max-width: 900px) {
  .hero-proof--center {
    grid-template-columns: 1fr;
  }
}

.about-facts {
  grid-template-columns: 1fr;
  align-content: start;
  gap: 12px;
  margin-top: 0;
}

.about-facts span {
  display: flex;
  align-items: center;
  min-height: 68px;
  padding: 18px 20px;
}

.production-intro {
  align-items: start;
}

.production-intro__copy {
  min-width: 0;
}

.production-intro__panel {
  align-content: start;
  min-width: 0;
}

.production-intro__facts {
  margin-top: 0;
}

.advantage-grid {
  gap: 12px;
}

.advantage-grid span {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 76px;
  padding: 14px 16px;
}

.advantage-grid i {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(47, 128, 201, 0.96), rgba(58, 156, 191, 0.96));
  color: #fff;
  font-style: normal;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
  text-align: center;
  box-shadow: 0 10px 20px rgba(17, 24, 39, 0.13);
}

.advantage-grid i svg {
  width: 23px;
  height: 23px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.advantage-grid b {
  font: inherit;
  min-width: 0;
}

.legal-nav-section {
  padding-top: 28px;
  padding-bottom: 0;
}

.legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.legal-links .ghost-button {
  border-color: var(--accent);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent 38%),
    var(--accent);
  color: #fff;
  box-shadow: 0 12px 26px rgba(47, 128, 201, 0.22);
}

.legal-links .ghost-button:hover {
  border-color: var(--accent-dark);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent 38%),
    var(--accent-dark);
  color: #fff;
  box-shadow: 0 16px 34px rgba(159, 34, 29, 0.25);
}

.legal-links .ghost-button.active {
  border-color: var(--accent-dark);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.14), transparent 38%),
    var(--accent-dark);
  color: #fff;
  box-shadow: 0 16px 34px rgba(159, 34, 29, 0.25);
}

.legal-document {
  display: grid;
  gap: 28px;
}

.legal-intro,
.legal-note {
  max-width: 980px;
}

.legal-intro {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid rgba(17, 24, 39, 0.09);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 36px rgba(17, 24, 39, 0.07);
}

.legal-intro p {
  margin: 0;
  color: var(--graphite);
  font-size: 18px;
  line-height: 1.65;
}

.legal-card {
  min-height: 100%;
}

.legal-card p {
  margin-top: 12px;
}

.cookie-banner {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  width: min(720px, calc(100vw - 36px));
  padding: 18px;
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.98);
  color: var(--ink);
  box-shadow: 0 24px 54px rgba(17, 24, 39, 0.18);
}

.cookie-banner strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.cookie-banner p {
  margin: 0 0 8px;
  color: var(--graphite);
  font-size: 14px;
  line-height: 1.5;
}

.cookie-banner a {
  color: var(--accent);
  font-weight: 800;
}

.cookie-banner__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.scroll-top-button {
  position: fixed;
  right: 22px;
  bottom: 120px;
  z-index: 70;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 24px;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 180ms ease, transform 180ms ease;
  box-shadow: 0 16px 34px rgba(17, 24, 39, 0.22);
}

.scroll-top-button.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.scroll-top-button:hover {
  background: var(--accent);
}

@media (max-width: 720px) {
  .cookie-banner {
    grid-template-columns: 1fr;
  }

  .cookie-banner__actions {
    justify-content: stretch;
  }

  .cookie-banner__actions .button,
  .cookie-banner__actions .ghost-button {
    flex: 1;
  }

  .scroll-top-button {
    right: 18px;
    bottom: 146px;
  }
}

/* Final image-based light carbon background */
body {
  position: relative;
  min-height: 100vh;
  background-color: #eef3f6;
  background-image: none;
}

body::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(180deg, rgba(255, 255, 255, 0.64), rgba(240, 245, 248, 0.72)),
    radial-gradient(circle at 26% 8%, rgba(255, 255, 255, 0.42), transparent 38%),
    url("images/volokno_karbon.jpg");
  background-position: center top, center top, center center;
  background-size: auto, auto, cover;
}

.site-shell {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.04);
}

.section {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(250, 252, 253, 0.7)),
    rgba(255, 255, 255, 0.62);
}

.section.alt {
  background:
    linear-gradient(180deg, rgba(244, 248, 251, 0.74), rgba(255, 255, 255, 0.68)),
    rgba(255, 255, 255, 0.58);
}

.industry-catalog-section {
  background: rgba(255, 255, 255, 0.72);
}

.industry-catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.industry-catalog-card {
  position: relative;
  display: grid;
  grid-template-rows: 190px minmax(260px, 1fr);
  min-height: 100%;
  overflow: hidden;
  border: 1px solid rgba(47, 128, 201, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(232, 244, 252, 0.88) 43%, rgba(255, 255, 255, 0.95)),
    var(--industry-card-image) center top / cover no-repeat,
    rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow-soft);
}

.industry-catalog-card__media {
  height: 190px;
  background:
    linear-gradient(180deg, rgba(232, 244, 252, 0.2), rgba(232, 244, 252, 0.58)),
    #e8eef4;
}

.industry-catalog-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.industry-catalog-card__product-collage {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  grid-template-rows: repeat(5, minmax(0, 1fr));
  width: 100%;
  height: 100%;
  padding: 14px;
  background:
    radial-gradient(circle at 18% 18%, rgba(47, 128, 201, 0.14), transparent 34%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.86), rgba(232, 244, 252, 0.74));
}

.industry-catalog-card__product-item {
  display: block;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
  border: 1px solid rgba(47, 128, 201, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 14px 26px rgba(17, 24, 39, 0.12);
}

.industry-catalog-card__product-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 7px;
}

.industry-catalog-card__product-item--1 {
  z-index: 2;
  grid-area: 1 / 1 / 5 / 6;
}

.industry-catalog-card__product-item--2 {
  z-index: 3;
  grid-area: 1 / 6 / 4 / 9;
}

.industry-catalog-card__product-item--3 {
  z-index: 4;
  grid-area: 3 / 5 / 6 / 9;
}

.industry-catalog-card__product-item--4 {
  z-index: 1;
  grid-area: 4 / 1 / 6 / 5;
}

.industry-catalog-card__body {
  display: grid;
  grid-template-rows: auto auto 1fr;
  align-content: stretch;
  gap: 12px;
  padding: 20px;
  background: linear-gradient(180deg, rgba(238, 248, 253, 0.88), rgba(255, 255, 255, 0.94));
  backdrop-filter: blur(1px);
}

.industry-catalog-card__body h3 {
  margin: 0;
  color: var(--ink);
  font-size: 21px;
  line-height: 1.2;
}

.industry-catalog-card__body p {
  margin: 0;
  color: var(--muted);
}

.industry-product-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-content: flex-start;
}

.industry-product-list a {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 74px;
  padding: 7px 10px;
  border: 1px solid rgba(47, 128, 201, 0.22);
  border-radius: 8px;
  background: rgba(47, 128, 201, 0.08);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.industry-product-list a:hover {
  border-color: var(--accent);
  background: rgba(47, 128, 201, 0.14);
}

.upa-table-wrap {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.upa-grade-table {
  width: 100%;
  min-width: 0;
}

.upa-grade-table thead th {
  background: rgba(47, 128, 201, 0.1);
  color: var(--ink);
}

.upa-product-tabs {
  display: grid;
  gap: 18px;
}

.upa-tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(47, 128, 201, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.upa-tab {
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 10px 14px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.upa-tab.active,
.upa-tab:hover {
  border-color: rgba(47, 128, 201, 0.28);
  background: rgba(47, 128, 201, 0.12);
  color: var(--accent-dark);
}

.upa-tabs__body {
  display: grid;
}

.upa-tab-panel {
  display: grid;
  gap: 16px;
  scroll-margin-top: 205px;
}

.upa-tab-panel + .upa-tab-panel {
  margin-top: 6px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.patent-note {
  margin: 0;
  padding: 14px 16px;
  border-left: 4px solid var(--accent);
  border-radius: 6px;
  background: rgba(47, 128, 201, 0.1);
  color: var(--ink);
}

.patent-note a {
  color: var(--accent-dark);
  font-weight: 800;
}

.upa-calculator {
  display: grid;
  gap: 16px;
  padding: 18px;
  border: 1px solid rgba(47, 128, 201, 0.18);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(226, 242, 250, 0.72));
}

.upa-calculator__controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.upa-calculator input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.upa-calculator output {
  display: inline-flex;
  width: max-content;
  margin-top: 8px;
  padding: 5px 9px;
  border-radius: 6px;
  background: rgba(47, 128, 201, 0.12);
  color: var(--accent-dark);
  font-weight: 800;
}

.upa-calculator__result {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.upa-calculator__result div,
.upa-property-board div {
  display: grid;
  gap: 4px;
  padding: 14px;
  border-radius: 8px;
  background: #fff;
  box-shadow: inset 0 0 0 1px rgba(47, 128, 201, 0.14);
}

.upa-calculator__result span,
.upa-property-board span {
  color: var(--muted);
  font-size: 13px;
}

.upa-calculator__result strong,
.upa-property-board strong {
  color: var(--ink);
  font-size: 22px;
}

.upa-property-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.upa-property-board strong {
  font-size: 16px;
  line-height: 1.35;
}

.header-contacts .header-cta {
  margin-top: 0;
  color: #fff;
  font-size: 13px;
}

@media (max-width: 900px) {
  .industry-catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .industry-catalog-grid {
    grid-template-columns: 1fr;
  }

  .industry-catalog-card {
    grid-template-rows: 170px auto;
  }

  .industry-catalog-card__media {
    height: 170px;
  }

  .upa-tabs__nav {
    display: grid;
  }

  .upa-calculator__controls,
  .upa-calculator__result,
  .upa-property-board {
    grid-template-columns: 1fr;
  }
}

.tag,
.section.alt .tag,
.product-card .tag {
  border-color: rgba(102, 184, 216, 0.42);
  background: rgba(102, 184, 216, 0.12);
  color: #2f80c9;
}

.product-card .tag {
  min-height: 0;
  padding: 2px 0 2px 10px;
  border: 0;
  border-left: 3px solid #2f80c9;
  border-radius: 0;
  background: transparent !important;
  color: var(--ink);
  font-size: 12px;
  font-weight: 720;
  line-height: 1.35;
}

.product-card .card-body {
  display: grid;
  grid-template-rows: minmax(34px, auto) minmax(64px, auto) minmax(150px, 1fr) auto;
  align-content: stretch;
}

.product-card .tag-row {
  min-height: 34px;
  align-items: start;
}

.product-card .card-body p {
  align-self: start;
}

.product-card .card-link {
  align-self: end;
}

.material-group-card--single {
  display: block;
}

.material-list-section + .material-list-section {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(17, 24, 39, 0.1);
}

.material-list-section .feature-list {
  margin-top: 10px;
}

.company-panel--visual .material-group-card--single .feature-list li.material-list-item {
  min-height: 80px;
}

.sales-directions {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(239, 247, 250, 0.88));
}

.sales-direction-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.sales-direction-card {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  min-height: 250px;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 16px 34px rgba(17, 24, 39, 0.08);
}

.sales-direction-card__media {
  position: relative;
  display: grid;
  min-height: 100%;
  padding: 12px;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 22% 18%, rgba(47, 128, 201, 0.16), transparent 34%),
    linear-gradient(135deg, #eef6f9, #f8fbfd);
}

.sales-direction-card__media::before {
  position: absolute;
  inset: 14px 18px 16px 10px;
  z-index: -1;
  border: 1px solid rgba(47, 128, 201, 0.12);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(47, 128, 201, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(47, 128, 201, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  content: "";
  transform: rotate(-2deg);
}

.sales-direction-card__image {
  width: 100%;
  height: 100%;
  min-height: 226px;
  border-radius: 6px;
  object-fit: cover;
  object-position: center;
}

.sales-direction-collage {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  grid-template-rows: repeat(8, minmax(0, 1fr));
  height: 100%;
  min-height: 226px;
}

.sales-direction-collage__item {
  position: relative;
  display: block;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
  border: 1px solid rgba(17, 24, 39, 0.12);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 14px 28px rgba(17, 24, 39, 0.16);
}

.sales-direction-collage__item img {
  width: 100%;
  height: 100%;
  display: block;
  min-width: 0;
  min-height: 0;
  object-fit: cover;
  object-position: center;
}

.sales-direction-collage__item--1 {
  z-index: 1;
  grid-area: 1 / 1 / 6 / 7;
  transform: rotate(-3deg);
}

.sales-direction-collage__item--2 {
  z-index: 3;
  grid-area: 4 / 3 / 9 / 9;
  transform: rotate(3deg);
}

.sales-direction-collage__item--3 {
  z-index: 2;
  grid-area: 2 / 5 / 7 / 9;
  transform: rotate(-1deg);
}

.sales-direction-collage__item--4 {
  z-index: 4;
  grid-area: 6 / 1 / 9 / 6;
  transform: rotate(2deg);
}

.sales-direction-card__body {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 22px;
}

.sales-direction-card h3 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(18px, 1.8vw, 24px);
  line-height: 1.15;
}

.sales-direction-card p {
  margin: 0;
  color: var(--graphite);
}

.sales-direction-card .card-link {
  margin-top: 2px;
}

@media (max-width: 1080px) {
  .sales-direction-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .sales-direction-card {
    grid-template-columns: 1fr;
  }

  .sales-direction-card__media {
    height: 230px;
    min-height: 0;
  }

  .sales-direction-card__image,
  .sales-direction-collage {
    min-height: 0;
  }
}

.product-collage {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  grid-template-rows: repeat(10, minmax(30px, 1fr));
  min-height: 460px;
  padding: 18px;
  isolation: isolate;
}

.product-collage::before {
  position: absolute;
  inset: 42px 18px 24px 56px;
  z-index: -1;
  border: 1px solid rgba(47, 128, 201, 0.13);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(236, 246, 250, 0.72)),
    linear-gradient(90deg, rgba(47, 128, 201, 0.08) 1px, transparent 1px),
    linear-gradient(180deg, rgba(47, 128, 201, 0.07) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
  box-shadow: 0 22px 54px rgba(17, 24, 39, 0.1);
  content: "";
  transform: rotate(-1.8deg);
}

.product-collage__item {
  position: relative;
  overflow: hidden;
  margin: 0;
  border: 1px solid rgba(17, 24, 39, 0.1);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 18px 36px rgba(17, 24, 39, 0.14);
}

.product-collage__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.product-collage__item figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  max-width: calc(100% - 24px);
  padding: 7px 10px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  font-size: 12px;
  font-weight: 850;
  line-height: 1.2;
  box-shadow: 0 8px 18px rgba(17, 24, 39, 0.12);
}

.product-collage__item--main {
  grid-area: 2 / 1 / 9 / 8;
  transform: rotate(-3deg);
}

.product-collage__item--upa {
  grid-area: 1 / 7 / 5 / 12;
  transform: rotate(4deg);
}

.product-collage__item--upa img {
  object-fit: contain;
  padding: 14px;
  background:
    radial-gradient(circle at 64% 42%, rgba(47, 128, 201, 0.1), transparent 38%),
    #f7fafc;
}

.product-collage__item--bushing {
  grid-area: 5 / 7 / 10 / 13;
  transform: rotate(2deg);
}

.product-collage__item--sheet {
  grid-area: 7 / 2 / 11 / 7;
  transform: rotate(3deg);
}

.product-collage__item--fiber {
  grid-area: 1 / 3 / 4 / 8;
  transform: rotate(-1deg);
}

@media (max-width: 820px) {
  .product-collage {
    min-height: 430px;
    margin-top: 6px;
  }
}

@media (max-width: 620px) {
  .product-collage {
    grid-template-rows: repeat(12, minmax(24px, 1fr));
    min-height: 560px;
    padding: 10px;
  }

  .product-collage::before {
    inset: 30px 4px 22px 8px;
  }

  .product-collage__item--main {
    grid-area: 1 / 1 / 6 / 9;
  }

  .product-collage__item--upa {
    grid-area: 2 / 8 / 6 / 13;
  }

  .product-collage__item--bushing {
    grid-area: 6 / 5 / 11 / 13;
  }

  .product-collage__item--sheet {
    grid-area: 8 / 1 / 13 / 7;
  }

  .product-collage__item--fiber {
    grid-area: 5 / 1 / 9 / 6;
  }
}

/* Final typography scale: quieter, more commercial, less poster-like. */
body {
  font-size: 15px;
}

h1,
.hero h1,
.page-hero h1 {
  max-width: 640px;
  font-size: 42px;
  line-height: 1.08;
}

h2,
.section-head h2,
.company-panel h2,
.cta-band h2,
.privacy-card h2 {
  font-size: 28px;
  line-height: 1.14;
}

h3,
.card-body h3,
.product-card h3,
.sales-direction-card h3,
.industry-card h3,
.industry-catalog-card__body h3,
.company-tab-panel h3,
.partner-card h3 {
  font-size: 20px;
  line-height: 1.2;
}

.lead,
.hero .lead,
.page-hero .lead {
  font-size: 16px;
  line-height: 1.55;
}

.sales-direction-card p,
.card-body p,
.industry-catalog-card__body p,
.company-tab-panel p {
  font-size: 14px;
}

@media (max-width: 1080px) {
  h1,
  .hero h1,
  .page-hero h1 {
    font-size: 36px;
  }

  h2,
  .section-head h2,
  .company-panel h2,
  .cta-band h2,
  .privacy-card h2 {
    font-size: 26px;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 14px;
  }

  h1,
  .hero h1,
  .page-hero h1 {
    font-size: 28px;
    line-height: 1.12;
  }

  h2,
  .section-head h2,
  .company-panel h2,
  .cta-band h2,
  .privacy-card h2 {
    font-size: 23px;
    line-height: 1.16;
  }

  h3,
  .card-body h3,
  .product-card h3,
  .sales-direction-card h3,
  .industry-card h3,
  .industry-catalog-card__body h3,
  .company-tab-panel h3,
  .partner-card h3 {
    font-size: 18px;
  }

  .lead,
  .hero .lead,
  .page-hero .lead {
    font-size: 14px;
  }
}

/* Keep the home hero compact enough to reveal the next section sooner. */
.hero {
  min-height: clamp(460px, 58svh, 540px);
  padding-top: clamp(18px, 2.6vw, 32px);
  padding-bottom: 22px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.97) 0%, rgba(255, 255, 255, 0.93) 40%, rgba(255, 255, 255, 0.8) 66%, rgba(255, 255, 255, 0) 78%),
    url("images/site-header-carbon-collage.jpg") center center / cover no-repeat,
    #eef3f6;
}

.hero .container {
  min-height: calc(clamp(460px, 58svh, 540px) - 88px);
  align-content: center;
  justify-content: center;
  padding-top: 0;
}

.hero-actions {
  margin-top: 22px;
}

@media (max-width: 820px) {
  .hero {
    min-height: 520px;
    padding-top: 24px;
  }

  .hero .container {
    min-height: auto;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: 460px;
    padding-top: 20px;
    padding-bottom: 18px;
  }
}

/* Keep inner page heroes visually higher, like the homepage hero. */
.page-hero {
  min-height: clamp(460px, 58svh, 540px);
  align-items: stretch;
  padding-top: clamp(18px, 2.6vw, 32px);
  padding-bottom: 22px;
}

.page-hero .container {
  width: min(100%, var(--max));
  min-height: calc(clamp(460px, 58svh, 540px) - 88px);
  align-content: center;
  justify-content: center;
  padding-top: 0;
}

@media (max-width: 820px) {
  .page-hero {
    min-height: 520px;
    padding-top: 24px;
  }

  .page-hero .container {
    min-height: auto;
  }
}

@media (max-width: 620px) {
  .page-hero {
    min-height: 580px;
    padding-top: 24px;
  }
}

/* Mobile polish: keep footer and orderable-products block fully adaptive. */
@media (max-width: 760px) {
  .company-overview__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .company-panel--visual {
    padding: 18px;
  }

  .company-panel--visual h2 {
    max-width: 100%;
    font-size: 23px;
    line-height: 1.16;
  }

  .material-group-card .feature-list {
    gap: 14px;
    margin-top: 14px;
  }

  .material-group-card .feature-list li.material-list-item {
    min-height: 0;
  }

  .material-list-item__link {
    grid-template-columns: 1fr;
    gap: 10px;
    align-items: start;
    min-height: 0;
    padding: 12px;
  }

  .material-list-item__media {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    border-radius: 8px;
  }

  .material-list-item__media img,
  .material-list-item img {
    width: 100%;
    height: 100%;
    border-radius: 8px;
    object-fit: contain;
    padding: 10px;
  }

  .material-list-item__text {
    font-size: 14px;
    line-height: 1.35;
    overflow-wrap: anywhere;
  }

  .company-panel--visual .section-actions,
  .company-panel--visual .section-actions .ghost-button {
    width: 100%;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 22px;
    width: 100%;
    padding: 28px 18px;
    background-size: cover, auto;
  }

  .site-footer__brand,
  .site-footer__contacts {
    width: 100%;
    max-width: none;
  }

  .site-footer__nav-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 14px;
  }

  .site-footer a,
  .site-footer p {
    overflow-wrap: anywhere;
  }
}

@media (max-width: 430px) {
  .site-footer__nav-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1080px) {
  .site-header {
    z-index: 130;
  }

  .product-page-nav {
    top: 80px;
    z-index: 100;
  }

  .info-block,
  .product-page-nav {
    scroll-margin-top: 150px;
  }

  .site-nav {
    z-index: 140;
  }
}

@media (max-width: 560px) {
  html,
  body {
    max-width: 100%;
    overflow-x: hidden;
  }

  .site-shell,
  .site-header,
  main,
  section,
  .container,
  .site-footer {
    max-width: 100vw;
  }

  .hero {
    min-height: auto;
    padding-bottom: 42px;
    overflow: hidden;
  }

  .hero .container {
    min-height: auto;
    padding-top: 22px;
    padding-bottom: 26px;
  }

  h1,
  .hero h1,
  .page-hero h1 {
    max-width: 100%;
    font-size: clamp(26px, 7.4vw, 30px);
    line-height: 1.14;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .hero .lead,
  .page-hero .lead {
    max-width: 100%;
    font-size: 15px;
    overflow-wrap: anywhere;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.65), 0 0 14px rgba(255, 255, 255, 0.6);
  }

  .hero h1,
  .page-hero h1 {
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.6), 0 0 18px rgba(255, 255, 255, 0.55);
  }

  .site-nav {
    top: 72px;
    right: 12px;
    left: 12px;
    box-sizing: border-box;
    width: auto;
    max-width: calc(100vw - 24px);
    max-height: calc(100svh - 84px);
    border-radius: 0 0 12px 12px;
    overflow-y: auto;
  }

  .site-nav.open {
    display: flex;
  }

  .cookie-banner {
    box-sizing: border-box;
    right: 12px;
    bottom: 12px;
    left: 12px;
    width: auto;
    max-width: calc(100vw - 24px);
    max-height: calc(100svh - 24px);
    padding: 16px;
    overflow-y: auto;
  }

  .cookie-banner,
  .cookie-banner * {
    min-width: 0;
  }

  .cookie-banner p,
  .cookie-banner a {
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .cookie-banner__actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
  }

  .cookie-banner__actions .button,
  .cookie-banner__actions .ghost-button {
    min-width: 0;
    width: 100%;
  }
}


/* Extra-narrow screens (iPhone SE class): keep the brand readable and
   the call button compact while the controls stay at 44px. */
@media (max-width: 360px) {
  .site-header {
    gap: 6px;
    padding-right: 12px;
    padding-left: 12px;
  }

  .brand {
    gap: 6px;
  }

  .brand-mark {
    height: 34px;
  }

  .brand-text strong {
    max-width: 96px;
    font-size: 11px;
  }

  .mobile-call-button {
    padding-right: 10px;
    padding-left: 10px;
  }
}
.partners-intro-section {
  padding-bottom: 36px;
}
.partners-list-section {
  padding-top: 36px;
}
#product-benefits .feature-list {
  gap: 8px;
  margin-top: 4px;
}
#product-benefits .feature-list li {
  padding: 10px 14px 10px 36px;
  font-size: 14.5px;
  line-height: 1.45;
}
#product-benefits .feature-list li::before {
  top: 15px;
  left: 15px;
}

/* Mobile hero gradients: must stay after the compact hero override so they win. */
@media (max-width: 980px) {
  .hero {
    min-height: 720px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.94) 52%, rgba(255, 255, 255, 0.66) 76%, rgba(255, 255, 255, 0.22) 92%, rgba(255, 255, 255, 0.05) 100%),
      url("images/site-header-carbon-collage.jpg") center bottom / cover no-repeat,
      #eef3f6;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: 820px;
    padding-top: 34px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(255, 255, 255, 0.97) 55%, rgba(255, 255, 255, 0.86) 72%, rgba(255, 255, 255, 0.32) 86%, rgba(255, 255, 255, 0.08) 100%),
      url("images/site-header-carbon-collage.jpg") 57% bottom / cover no-repeat,
      #eef3f6;
  }
}

/* Единый шрифт и чёрный текст на всём сайте */
:root {
  --font-sans: Inter, "Segoe UI", Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
}

html,
body,
button,
input,
select,
textarea {
  font-family: var(--font-sans);
}

.eyebrow,
.hero .eyebrow,
.section.alt .eyebrow,
.section.alt .company-panel .eyebrow,
.section.alt .company-panel .panel-label,
.panel-label,
.card-link,
.breadcrumbs,
.breadcrumbs a,
.patent-note a,
.cookie-banner a,
.checkbox-field a,
.hero-strip span,
.metric strong,
.tag,
.section.alt .tag,
.product-card .tag,
.tag__icon,
.product-page-nav a,
.industry-catalog-card__body p {
  color: var(--ink);
}

/* Углеродные ткани: карточки в блоке «Готовые компаунды» на странице материалов */
.fabric-block {
  display: grid;
  gap: 18px;
  margin-top: clamp(30px, 4vw, 48px);
}

.fabric-block__head {
  margin-bottom: 0;
}

.fabric-block__head h3 {
  margin: 0;
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.15;
}

.fabric-note {
  max-width: 940px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}