:root {
  --bg: #f2f0ea;
  --ink: #121820;
  --muted: #66717d;
  --line: rgba(18, 24, 32, 0.14);
  --surface: #ffffff;
  --surface-strong: #202923;
  --accent: #7bc043;
  --accent-dark: #4d8f25;
  --warm: #c5843e;
  --shadow: 0 24px 70px rgba(17, 24, 39, 0.14);
  --hard-shadow: 12px 12px 0 rgba(123, 192, 67, 0.88);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  overflow-x: hidden;
}

body::selection {
  background: var(--accent);
  color: #101711;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  padding: 18px clamp(20px, 5vw, 70px);
  color: #fff;
  transition: background 180ms ease, color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(245, 243, 238, 0.94);
  color: var(--ink);
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.08);
  backdrop-filter: blur(18px);
}

.brand img {
  width: 148px;
  height: auto;
  filter: brightness(0) invert(1);
  transition: filter 180ms ease;
}

.site-header.is-scrolled .brand img,
.site-header.is-open .brand img {
  filter: none;
}

.quick-quote {
  position: fixed;
  z-index: 18;
  right: 26px;
  bottom: 26px;
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  background: var(--accent);
  color: #101711;
  border: 1px solid rgba(16, 23, 17, 0.18);
  border-radius: 50%;
  box-shadow: 0 22px 48px rgba(16, 23, 17, 0.26);
  transform: translateY(130%);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.quick-quote.is-visible {
  transform: translateY(0);
}

.quick-quote:hover {
  box-shadow: 0 26px 58px rgba(16, 23, 17, 0.34);
}

.quick-quote span,
.quick-quote strong {
  display: block;
  line-height: 1;
}

.quick-quote span {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.quick-quote strong {
  margin-top: -18px;
  font-size: 15px;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.nav a {
  opacity: 0.86;
}

.nav a:hover {
  opacity: 1;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  border-radius: 50%;
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 760px;
  height: 92svh;
  max-height: 1120px;
  display: grid;
  align-items: end;
  padding: 130px clamp(22px, 7vw, 120px) 92px;
  color: #fff;
  overflow: hidden;
}

.hero-media,
.hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-media {
  object-fit: cover;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(7, 10, 13, 0.84), rgba(7, 10, 13, 0.34) 55%, rgba(7, 10, 13, 0.62)),
    linear-gradient(0deg, rgba(7, 10, 13, 0.72), rgba(7, 10, 13, 0.08) 48%, rgba(7, 10, 13, 0.44));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 880px;
}

.hero-content::before {
  content: "";
  display: block;
  width: 110px;
  height: 8px;
  margin-bottom: 34px;
  background: var(--accent);
  box-shadow: 18px 18px 0 rgba(255, 255, 255, 0.14);
}

.eyebrow,
.section-label {
  margin: 0 0 16px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
  overflow-wrap: break-word;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(36px, 4.8vw, 68px);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  font-size: clamp(34px, 5vw, 68px);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.08;
}

.hero-copy {
  max-width: 640px;
  margin-bottom: 34px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(16px, 1.4vw, 20px);
}

.hero-segments {
  display: inline-block;
  max-width: 900px;
  margin: 22px 0 0;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-left: 4px solid var(--accent);
  background: rgba(8, 12, 10, 0.34);
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.45;
  backdrop-filter: blur(12px);
}

.hero-note {
  max-width: 740px;
  margin: 20px 0 0;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
}

.hero-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 14px 22px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent);
  color: #101711;
}

.button-primary:hover {
  background: #91d65a;
}

.button-ghost {
  border-color: rgba(255, 255, 255, 0.42);
  color: #fff;
}

.hero-bottom {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(420px, 760px) minmax(360px, 470px);
  gap: 16px;
  align-items: stretch;
  width: min(1240px, 100%);
  margin-top: 78px;
  margin-bottom: 34px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-stats div {
  padding: 18px;
  background: rgba(8, 12, 10, 0.36);
  backdrop-filter: blur(14px);
}

.hero-stats strong {
  display: block;
  font-size: 20px;
}

.hero-stats span {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
}

.hero-cert {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 18px;
  align-items: center;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(245, 243, 238, 0.9);
  color: #101711;
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.18);
}

.hero-cert img {
  width: 100%;
  height: auto;
}

.hero-cert span,
.hero-cert small {
  display: block;
  color: #47515a;
  font-size: 12px;
  line-height: 1.3;
}

.hero-cert strong {
  display: block;
  margin: 2px 0;
  color: #101711;
  font-size: 16px;
  line-height: 1.2;
}

.hero-ticker {
  position: absolute;
  z-index: 3;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(8, 12, 10, 0.62);
  backdrop-filter: blur(12px);
}

.hero-ticker div {
  display: flex;
  width: max-content;
  animation: ticker 180s linear infinite;
  will-change: transform;
}

.hero-ticker span {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 28px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  white-space: nowrap;
}

.hero-ticker span::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-right: 16px;
  background: var(--accent);
  border-radius: 50%;
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

.section {
  padding: clamp(76px, 10vw, 150px) clamp(22px, 7vw, 120px);
}

.intro {
  background:
    linear-gradient(90deg, transparent 0 49.9%, rgba(18, 24, 32, 0.05) 49.9% 50.1%, transparent 50.1%),
    var(--surface);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: clamp(36px, 7vw, 110px);
  align-items: start;
}

.intro-grid h2 {
  margin-bottom: 0;
}

.intro-grid p,
.proof-panel p,
.logistics-card p,
.contact-copy p {
  color: var(--muted);
  font-size: 18px;
}

.section-heading {
  max-width: 860px;
  margin-bottom: clamp(34px, 6vw, 70px);
}

.section-heading > p:not(.eyebrow) {
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
}

.section-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.b2b {
  background:
    linear-gradient(90deg, transparent 0 49.9%, rgba(18, 24, 32, 0.05) 49.9% 50.1%, transparent 50.1%),
    var(--surface);
}

.b2b-grid,
.process-grid {
  display: grid;
  gap: 16px;
}

.b2b-grid {
  grid-template-columns: repeat(4, 1fr);
}

.b2b-card,
.process-step {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfaf7;
}

.b2b-card {
  min-height: 260px;
  padding: 26px;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.b2b-card:hover {
  background: var(--surface-strong);
  color: #fff;
  transform: translateY(-4px);
}

.b2b-card span,
.process-step span {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 34px;
  margin-bottom: 24px;
  padding: 0 8px;
  background: var(--accent);
  color: #101711;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 950;
}

.b2b-card h3,
.process-step h3 {
  margin-bottom: 14px;
  font-size: 24px;
}

.b2b-card p,
.process-step p {
  margin-bottom: 0;
  color: var(--muted);
}

.b2b-card:hover p {
  color: rgba(255, 255, 255, 0.7);
}

.products {
  background:
    radial-gradient(circle at 85% 5%, rgba(123, 192, 67, 0.14), transparent 34%),
    var(--bg);
}

.product-card {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(34px, 6vw, 88px);
  align-items: center;
  margin-bottom: 28px;
  padding: clamp(28px, 5vw, 70px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform-style: preserve-3d;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.product-card:hover {
  box-shadow: var(--hard-shadow), var(--shadow);
}

.product-dark {
  background:
    linear-gradient(135deg, rgba(123, 192, 67, 0.16), transparent 36%),
    var(--surface-strong);
  color: #fff;
}

.product-copy p {
  max-width: 600px;
  color: var(--muted);
  font-size: 17px;
}

.product-dark .product-copy p,
.product-dark .spec-list span {
  color: rgba(255, 255, 255, 0.64);
}

.product-number {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
}

.spec-list {
  display: grid;
  gap: 0;
  padding: 0;
  margin: 32px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.product-dark .spec-list {
  border-color: rgba(255, 255, 255, 0.18);
}

.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.product-dark .spec-list li {
  border-color: rgba(255, 255, 255, 0.18);
}

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

.spec-list strong {
  text-align: right;
}

.product-visual {
  position: relative;
  min-height: 420px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(123, 192, 67, 0.12), transparent 45%),
    #ebe8e2;
  border-radius: var(--radius);
  overflow: hidden;
}

.product-visual img {
  width: min(520px, 94%);
  max-height: 560px;
  object-fit: contain;
  transition: transform 220ms ease;
}

.product-card:hover .product-visual img {
  transform: translateY(-6px) scale(1.02);
}

.product-gallery {
  padding: 28px 64px 70px;
}

.product-gallery img {
  width: min(430px, 90%);
}

.gallery-arrow {
  position: absolute;
  top: 50%;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(18, 24, 32, 0.18);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.76);
  color: var(--ink);
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
  transition: background 180ms ease, transform 180ms ease;
}

.gallery-arrow:hover {
  background: #fff;
  transform: translateY(-50%) scale(1.06);
}

.gallery-arrow-prev {
  left: 18px;
}

.gallery-arrow-next {
  right: 18px;
}

.color-switcher {
  position: absolute;
  left: 50%;
  bottom: 22px;
  z-index: 3;
  display: flex;
  gap: 10px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(18, 24, 32, 0.12);
  border-radius: 999px;
  transform: translateX(-50%);
  backdrop-filter: blur(12px);
}

.color-dot {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}

.color-dot span {
  width: 18px;
  height: 18px;
  border: 1px solid rgba(18, 24, 32, 0.18);
  border-radius: 50%;
}

.color-dot.is-active {
  border-color: var(--accent);
}

.material-lab {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1.18fr);
  gap: clamp(30px, 6vw, 88px);
  align-items: center;
  padding: clamp(78px, 10vw, 150px) clamp(22px, 7vw, 120px);
  background: #111614;
  color: #fff;
  overflow: hidden;
}

.lab-copy {
  max-width: 560px;
}

.lab-copy p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.68);
  font-size: 18px;
}

.lab-visual {
  position: relative;
  min-width: 0;
  min-height: 560px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  box-shadow: var(--hard-shadow);
  overflow: hidden;
  transform-style: preserve-3d;
}

.lab-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(17, 22, 20, 0.18), transparent 42%),
    linear-gradient(0deg, rgba(17, 22, 20, 0.7), transparent 48%);
  pointer-events: none;
}

.lab-visual img {
  width: 100%;
  height: 100%;
  min-height: 560px;
  object-fit: cover;
}

.hotspot {
  position: absolute;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(245, 243, 238, 0.92);
  color: #101711;
  border-radius: 999px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.24);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  white-space: nowrap;
}

.hotspot span {
  position: relative;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
}

.hotspot span::after {
  content: "";
  position: absolute;
  inset: -7px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  animation: pulse 1.8s ease-out infinite;
}

.hotspot-one {
  top: 16%;
  left: 8%;
}

.hotspot-two {
  top: 44%;
  right: 8%;
}

.hotspot-three {
  left: 12%;
  bottom: 12%;
}

@keyframes pulse {
  from {
    opacity: 0.9;
    transform: scale(0.8);
  }

  to {
    opacity: 0;
    transform: scale(1.65);
  }
}

.proof {
  position: relative;
  display: grid;
  grid-template-columns: 1fr minmax(340px, 0.6fr);
  min-height: 720px;
  background: #151a1d;
  color: #fff;
}

.proof::before {
  content: "GUMA PODLAHA";
  position: absolute;
  left: clamp(20px, 5vw, 76px);
  bottom: 24px;
  z-index: 2;
  color: rgba(255, 255, 255, 0.08);
  font-size: clamp(54px, 11vw, 180px);
  font-weight: 950;
  line-height: 0.8;
  pointer-events: none;
}

.proof > img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.proof-panel {
  align-self: center;
  padding: clamp(36px, 6vw, 82px);
}

.proof-panel h2 {
  font-size: clamp(34px, 4vw, 58px);
}

.use {
  background: var(--surface);
}

.process {
  background: #151a1d;
  color: #fff;
}

.process .section-heading > p:not(.eyebrow),
.process-step p {
  color: rgba(255, 255, 255, 0.68);
}

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

.process-step {
  min-height: 250px;
  padding: 26px;
  background:
    linear-gradient(135deg, rgba(123, 192, 67, 0.12), transparent 42%),
    #202923;
  border-color: rgba(255, 255, 255, 0.12);
}

.installation {
  background:
    linear-gradient(90deg, transparent 0 49.9%, rgba(18, 24, 32, 0.05) 49.9% 50.1%, transparent 50.1%),
    #f8f7f3;
}

.install-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.install-card {
  display: grid;
  align-content: start;
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 18px 48px rgba(17, 24, 39, 0.08);
  overflow: hidden;
}

.install-card img {
  width: 100%;
  height: clamp(150px, 13vw, 210px);
  padding: 10px;
  object-fit: contain;
  background: #f5f3ee;
  border-bottom: 1px solid var(--line);
}

.install-card div,
.install-card-text {
  padding: 20px;
}

.install-card-text {
  background:
    linear-gradient(135deg, rgba(123, 192, 67, 0.18), transparent 42%),
    var(--surface-strong);
  color: #fff;
}

.install-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.install-card-text p {
  color: rgba(255, 255, 255, 0.68);
}

.install-number {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
}

.use-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.use-item {
  min-height: 240px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfaf7;
  transition: background 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.use-item:hover {
  background: #202923;
  color: #fff;
  border-color: #202923;
  transform: translateY(-4px);
}

.use-item:hover p {
  color: rgba(255, 255, 255, 0.7);
}

.use-item span {
  display: block;
  width: 34px;
  height: 34px;
  margin-bottom: 30px;
  border: 4px solid var(--accent);
  border-radius: 4px;
}

.use-item h3 {
  margin-bottom: 14px;
  font-size: 24px;
}

.use-item p,
.care-card li {
  color: var(--muted);
}

.video-section {
  background: #151a1d;
  color: #fff;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.video-grid figure {
  margin: 0;
}

.video-grid video {
  width: 100%;
  aspect-ratio: 9 / 14;
  object-fit: cover;
  background: #000;
  border-radius: var(--radius);
  filter: saturate(0.86) contrast(1.04);
  transition: transform 220ms ease, filter 220ms ease;
}

.video-grid figure:hover video {
  transform: translateY(-6px);
  filter: saturate(1.04) contrast(1.08);
}

.video-grid figcaption {
  margin-top: 14px;
  font-weight: 900;
}

.gallery {
  background: var(--bg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 14px;
}

.gallery-grid img {
  width: 100%;
  height: 310px;
  object-fit: cover;
  border-radius: var(--radius);
  filter: saturate(0.9);
  transition: transform 220ms ease, filter 220ms ease;
}

.gallery-grid img:hover {
  transform: scale(1.025);
  filter: saturate(1.08);
}

.gallery-grid img:nth-child(1),
.gallery-grid img:nth-child(6) {
  grid-column: span 2;
}

.gallery-grid img:nth-child(2),
.gallery-grid img:nth-child(3),
.gallery-grid img:nth-child(4),
.gallery-grid img:nth-child(5) {
  grid-column: span 2;
}

.logistics {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  background: var(--surface);
}

.logistics-card,
.care-card {
  padding: clamp(30px, 5vw, 64px);
  border-radius: var(--radius);
}

.logistics-card {
  background: var(--surface-strong);
  color: #fff;
}

.logistics-card p {
  color: rgba(255, 255, 255, 0.72);
}

.care-card {
  border: 1px solid var(--line);
  background: #fbfaf7;
}

.care-card ul {
  display: grid;
  gap: 14px;
  padding-left: 20px;
  margin: 0;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  gap: clamp(36px, 7vw, 96px);
  padding: clamp(80px, 10vw, 150px) clamp(22px, 7vw, 120px);
  background:
    linear-gradient(135deg, rgba(123, 192, 67, 0.12), transparent 38%),
    #202923;
  color: #fff;
}

.contact h2 {
  font-size: clamp(38px, 5.8vw, 78px);
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 11px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  font-weight: 900;
}

.company {
  margin-top: 32px;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: clamp(24px, 4vw, 42px);
  background: #f7f4ee;
  color: var(--ink);
  border-radius: var(--radius);
}

.form-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-message {
  padding: 13px 15px;
  border-radius: 4px;
  background: #e8f1df;
  color: #26351f;
  font-weight: 900;
}

.form-message.is-error {
  background: #f3dfdc;
  color: #742c24;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: #44505b;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(18, 24, 32, 0.16);
  border-radius: 4px;
  padding: 14px 15px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  resize: vertical;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(123, 192, 67, 0.4);
  border-color: var(--accent-dark);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: center;
  padding: 28px clamp(22px, 7vw, 120px);
  background: #141816;
  color: rgba(255, 255, 255, 0.66);
}

.footer img {
  width: 126px;
  filter: brightness(0) invert(1);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1500px), (max-height: 1100px) {
  .site-header {
    min-height: 66px;
    padding: 14px clamp(32px, 4.5vw, 64px);
  }

  .brand img {
    width: 124px;
  }

  .nav {
    gap: 22px;
    font-size: 12px;
  }

  .hero {
    min-height: 560px;
    height: 78svh;
    max-height: 680px;
    align-items: center;
    padding: 82px clamp(48px, 5.8vw, 84px) 58px;
  }

  .hero-content {
    max-width: 620px;
  }

  .hero-content::before {
    width: 76px;
    height: 6px;
    margin-bottom: 18px;
    box-shadow: 14px 14px 0 rgba(255, 255, 255, 0.14);
  }

  h1 {
    max-width: 520px;
    margin-bottom: 14px;
    font-size: clamp(28px, 2.6vw, 36px);
    line-height: 1.02;
  }

  h2 {
    font-size: clamp(32px, 4vw, 54px);
  }

  .hero-copy {
    max-width: 520px;
    margin-bottom: 18px;
    font-size: 14px;
    line-height: 1.45;
  }

  .hero-segments {
    max-width: 620px;
    margin-top: 8px;
    padding: 0;
    border: 0;
    background: transparent;
    font-size: 12px;
    backdrop-filter: none;
  }

  .button {
    min-height: 42px;
    padding: 12px 18px;
    font-size: 12px;
  }

  .hero-bottom {
    grid-template-columns: minmax(360px, 560px) minmax(320px, 420px);
    gap: 12px;
    margin-top: 18px;
    margin-bottom: 22px;
  }

  .hero-stats div {
    padding: 12px 14px;
  }

  .hero-stats strong {
    font-size: 16px;
  }

  .hero-stats span {
    font-size: 12px;
  }

  .hero-cert {
    grid-template-columns: 76px 1fr;
    gap: 12px;
    padding: 10px 12px;
  }

  .hero-cert span,
  .hero-cert small {
    font-size: 10px;
  }

  .hero-cert strong {
    font-size: 12px;
  }

  .hero-ticker span {
    min-height: 34px;
    padding: 0 22px;
    font-size: 11px;
  }

  .section {
    padding: clamp(64px, 8vw, 110px) clamp(48px, 5.8vw, 84px);
  }
}

@media (max-width: 980px) {
  .menu-button {
    display: block;
  }

  .hero-content {
    width: 100%;
    max-width: calc(100vw - 40px);
  }

  .hero-segments,
  .hero-copy {
    max-width: calc(100vw - 40px);
  }

  h1,
  h2 {
    max-width: calc(100vw - 40px);
    overflow-wrap: anywhere;
  }

  h1 {
    font-size: clamp(32px, 5.4vw, 52px);
  }

  h2 {
    font-size: clamp(30px, 4.8vw, 48px);
  }

  .nav {
    position: absolute;
    top: 78px;
    left: 18px;
    right: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: rgba(245, 243, 238, 0.98);
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

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

  .nav a {
    padding: 14px;
  }

  .intro-grid,
  .product-card,
  .material-lab,
  .proof,
  .b2b-grid,
  .process-grid,
  .install-grid,
  .logistics,
  .contact {
    grid-template-columns: 1fr;
  }

  .product-card {
    padding: 26px;
  }

  .product-visual {
    min-height: 300px;
  }

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

  .b2b-grid,
  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lab-visual {
    min-height: 420px;
  }

  .lab-visual img {
    min-height: 420px;
  }

  .use-grid,
  .video-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .gallery-grid img,
  .gallery-grid img:nth-child(n) {
    grid-column: span 1;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 68px;
    padding: 14px 18px;
  }

  .brand img {
    width: 120px;
  }

  .nav {
    top: 68px;
  }

  .hero {
    min-height: 860px;
    height: auto;
    max-height: none;
    padding: 112px 20px 82px;
  }

  .hero-content {
    width: 100%;
    max-width: calc(100vw - 40px);
  }

  h1 {
    max-width: min(360px, calc(100vw - 40px));
    font-size: 26px;
    line-height: 1;
    overflow-wrap: anywhere;
  }

  h2 {
    max-width: min(360px, calc(100vw - 40px));
    font-size: 28px;
    line-height: 1.05;
    overflow-wrap: anywhere;
  }

  .hero-copy,
  .hero-note,
  .hero-segments,
  .intro-grid p,
  .lab-copy p:not(.eyebrow) {
    max-width: min(360px, calc(100vw - 40px));
    font-size: 15px;
  }

  .quick-quote {
    right: 16px;
    bottom: 16px;
    width: 70px;
    height: 70px;
  }

  .quick-quote strong {
    font-size: 13px;
  }

  .hero-actions .button {
    width: 100%;
    max-width: 320px;
    white-space: normal;
    text-align: center;
  }

  .hero-segments {
    display: block;
    width: 100%;
    max-width: calc(100vw - 40px);
    overflow-wrap: anywhere;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    margin-top: 0;
  }

  .hero-bottom {
    grid-template-columns: 1fr;
    width: 100%;
    max-width: calc(100vw - 40px);
    gap: 10px;
    margin-top: 22px;
    margin-bottom: 44px;
  }

  .hero-cert {
    order: -1;
    grid-template-columns: 78px 1fr;
    width: 100%;
    max-width: calc(100vw - 40px);
    gap: 10px;
    padding: 10px;
  }

  .hero-cert img {
    width: 78px;
  }

  .hero-cert span,
  .hero-cert small {
    font-size: 10px;
  }

  .hero-cert strong {
    font-size: 12px;
  }

  .hero-ticker span {
    min-height: 38px;
    padding: 0 18px;
  }

  .section {
    padding: 72px 20px;
  }

  .material-lab {
    padding: 72px 20px;
  }

  .lab-visual {
    width: min(100%, calc(100vw - 40px));
    min-height: 360px;
    box-shadow: 7px 7px 0 rgba(123, 192, 67, 0.88);
  }

  .lab-visual img {
    min-height: 360px;
  }

  .hotspot {
    gap: 7px;
    padding: 8px 10px;
    font-size: 10px;
  }

  .hotspot-two {
    right: auto;
    left: 52%;
  }

  .spec-list li {
    display: grid;
    gap: 4px;
  }

  .spec-list strong {
    text-align: left;
  }

  .use-grid,
  .b2b-grid,
  .process-grid,
  .video-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .install-grid {
    grid-template-columns: 1fr;
  }

  .install-card img {
    height: 210px;
    padding: 10px;
  }

  .product-gallery {
    padding: 24px 50px 68px;
  }

  .gallery-arrow {
    width: 38px;
    height: 38px;
    font-size: 28px;
  }

  .gallery-arrow-prev {
    left: 10px;
  }

  .gallery-arrow-next {
    right: 10px;
  }

  .video-grid video {
    aspect-ratio: 4 / 5;
  }

  .contact {
    padding: 72px 20px;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}