/* Base variables */
:root {
  --color-black: #050505;
  --color-dark: #080808;
  --color-ink: #111111;
  --color-muted: #626262;
  --color-yellow: #ffc400;
  --color-yellow-dark: #ffae00;
  --color-white: #ffffff;
  --color-soft: #f5f5f2;
  --color-line: #e8e8e8;
  --shadow-card: 0 14px 44px rgba(0, 0, 0, 0.06);
  --shadow-shell: 0 24px 70px rgba(0, 0, 0, 0.22);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html, body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}


body {
  margin: 0;
  padding: 0;
  font-family: 'Open Sans', Inter, Arial, sans-serif;
  color: var(--color-ink);
  background: #ffffff;
  line-height: 1.5;
  min-height: 100vh;
}

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

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


.page__shell {
  width: 100%;
  min-height: 100vh;
  margin: 0;
  background: #ffffff;
  overflow: visible;
  border-radius: 0;
  box-shadow: none;

}


.page-transition-shell.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.page-transition-active {
  overflow: hidden;
}

.page-transition-active::before {
  content: '';
  position: fixed;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 204, 0, 0.16), rgba(0, 0, 0, 0.08));
  z-index: 9999;
  opacity: 0;
  animation: pageFadeIn 0.22s ease forwards;
  pointer-events: none;
}

@keyframes pageFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}


/* Header and navigation */
.site-header {
  height: 74px;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 26px;
  padding: 0 clamp(28px, 4vw, 72px);
  background: #070707;
  color: var(--color-white);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: 1px;
}

.brand__logo {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 2px;
}

.brand__text {
  font-size: 0.95rem;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 20px;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 900;
}

.site-nav__link {
  padding: 28px 4px;
  border-bottom: 3px solid transparent;
  color: #f5f5f5;
}

.site-nav__link:hover,
.site-nav__link--active {
  color: var(--color-yellow);
  border-color: var(--color-yellow);
}

.site-header__phone {
  font-size: 0.9rem;
  font-weight: 900;
  white-space: nowrap;
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 24px;
  border: 2px solid transparent;
  border-radius: 4px;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.2px;
}

.button--primary {
  background: linear-gradient(135deg, var(--color-yellow), #ffcc00);
  color: #000000;
  border-radius: 999px;
  box-shadow: 0 10px 24px rgba(255, 204, 0, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.button--primary:hover,
.button--primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(255, 204, 0, 0.35);
  filter: brightness(1.03);
}

.button--outline {
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  color: var(--color-white);
  backdrop-filter: blur(8px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.button--outline:hover,
.button--outline:focus-visible {
  transform: translateY(-2px);
  border-color: var(--color-yellow);
  background: rgba(255, 255, 255, 0.14);
}

.button--yellow-border {
  border-color: var(--color-yellow);
}

.button--dark {
  background: linear-gradient(135deg, #111111, #000000);
  color: var(--color-white);
  border-radius: 999px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.button--dark:hover,
.button--dark:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
  filter: brightness(1.04);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 40px;
  border: 0;
  background: transparent;
}

.nav-toggle__line {
  display: block;
  height: 3px;
  margin: 7px 4px;
  border-radius: 6px;
  background: var(--color-white);
}

/* Home hero */
.hero {
  position: relative;
  min-height: 640px;
  overflow: hidden;
  background: var(--color-dark);
  color: var(--color-white);
}

.hero__background {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__background::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.92) 0%, rgba(0, 0, 0, 0.62) 34%, rgba(0, 0, 0, 0.14) 72%), radial-gradient(circle at 72% 50%, rgba(255, 196, 0, 0.28), transparent 26%), linear-gradient(180deg, rgba(0, 0, 0, 0.06), rgba(0, 0, 0, 0.5));
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding: clamp(74px, 8vw, 130px) clamp(28px, 5vw, 90px) 54px;
}

.hero__title {
  margin: 0 0 22px;
  text-transform: uppercase;
  font-size: clamp(3rem, 6.6vw, 6.8rem);
  line-height: 0.93;
  letter-spacing: 0;
}

.hero__accent {
  padding-top: 15px;
  display: block;
  background: none;
  color: var(--color-yellow);
}

.hero__text {
  max-width: 520px;
  margin: 0;
  color: var(--color-white);
  font-size: 1.22rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero__benefits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

/* Benefit cards */
.benefit-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  height: 100%;
  text-align: center;
}

.benefit-card__image {
  width: 64px;
  height: 64px;
  object-fit: contain;
  margin-bottom: 14px;
  border-radius: 18px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.benefit-card__title {
  margin: 0 0 5px;
  text-transform: uppercase;
  font-size: 1rem;
}

.benefit-card__text {
  margin: 0;
  color: #555555;
  font-size: 0.9rem;
}

.benefit-card--dark .benefit-card__text {
  color: #dbdbdb;
}

.line-icon--eco::after {
  width: 38px;
  height: 2px;
  left: 8px;
  top: 25px;
}

.line-icon--box {
  border-radius: 8px;
  transform: rotate(30deg);
}

.line-icon--ruler {
  width: 62px;
  height: 18px;
  border-radius: 2px;
  transform: rotate(-45deg);
}

.line-icon--factory {
  border-radius: 2px;
  border-top: 18px solid var(--color-yellow);
}

.line-icon--truck {
  width: 64px;
  height: 38px;
  border-radius: 2px;
}

/* Section blocks */
.about-preview,
.benefits-section,
.values-section,
.project-list,
/* Process page */
.timeline {
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
}

.about-preview {
  text-align: center;
  background: var(--color-white);
}

.section-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 14px;
  color: var(--color-yellow);
  text-transform: uppercase;
  font-size: 0.82rem;
  font-weight: 900;
}

.section-label__line {
  width: 38px;
  height: 2px;
  background: var(--color-yellow);
}

.section-label__text {
  font-size: 24px;
  margin: 0;
}

.section-title,
.page-hero__title,
.contact-section__title {
  margin: 0 auto 18px;
  text-transform: uppercase;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.section-lead {
  max-width: 680px;
  margin: 0 auto 32px;
  color: #555555;
}

.projects-preview,
.solutions-section,
.equipment-section {
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
  background: radial-gradient(circle at 70% 20%, rgba(255, 196, 0, 0.12), transparent 28%), var(--color-dark);
  color: var(--color-white);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 26px;
}

.section-heading__title {
  margin: 0;
  text-transform: uppercase;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 1.05;
}

.projects-page__products .section-heading {
  justify-content: center;
  margin-bottom: clamp(44px, 5vw, 72px);
}

.project-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card,
.solution-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #151515;
}

.project-card__tag,
.solution-card__tag,
.project-row__tag {
  display: inline-flex;
  background: var(--color-yellow);
  color: #000000;
  text-transform: uppercase;
  font-size: 0.76rem;
  font-weight: 950;
  padding: 7px 12px;
}

.project-card__tag {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 2;
}

.project-card__image {
  width: 100%;
  height: 255px;
  object-fit: cover;
}

.project-card__title {
  margin: 0;
  padding: 18px;
  text-transform: uppercase;
}

.call-to-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
  background: #f4f4f4;
}

.call-to-action__label,
.page-hero__label,
.contact-section__label,
.about-intro__label,
.equipment-section__label {
  color: var(--color-yellow);
  text-transform: uppercase;
  font-weight: 900;
}

.call-to-action__title {
  max-width: 760px;
  margin: 0 0 18px;
  text-transform: uppercase;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 1.05;
}

.call-to-action__text {
  max-width: 660px;
  margin: 0;
  color: #555555;
}

/* Inner page hero */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(76px, 10vw, 138px) clamp(28px, 5vw, 90px);
  color: var(--color-white);
}

.page-hero__background {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-hero__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.page-hero__background::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.6));
}

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

.page-hero__title {
  max-width: 900px;
  margin-left: 0;
}

.page-hero__text {
  max-width: 640px;
  margin: 0;
  color: #eeeeee;
  font-size: 1.12rem;
}



/* About page */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
}

.about-intro__title {
  margin-left: 0;
}

.about-intro__text {
  max-width: 680px;
  color: #555555;
  font-size: 1.08rem;
}

.about-intro__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.about-stat {
  padding: 24px;
  background: #f7f7f7;
  border-left: 5px solid var(--color-yellow);
}

.about-stat__number {
  display: block;
  color: var(--color-black);
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1;
}

.about-stat__text {
  color: #555555;
  font-weight: 800;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  text-align: left;
}

.about-page .benefit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  justify-content: center;
  gap: 18px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: stretch;
}

.benefit-grid--large {
  grid-template-columns: repeat(3, 1fr);
}

.benefit-grid .benefit-card {
  padding: 28px 24px;
  background: linear-gradient(145deg, #ffffff, #f5f5f5);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 24px;
  min-height: 230px;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.benefit-grid .benefit-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.1);
}

.benefit-card__image {
  width: 72px;
  height: 72px;
  object-fit: contain;
  margin: 0 auto 14px;
  display: block;
}

.benefit-card__title {
  text-align: center;
  line-height: 1.3;
}

.benefit-card__text {
  text-align: center;
  line-height: 1.6;
}

.values-section {
  text-align: center;
}

/* Projects page cards */
.products-section {
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
  background: #f7f7f7;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  align-items: stretch; /* ensure cards in the grid stretch to equal height */
  grid-auto-rows: 1fr; /* make grid rows uniform so cards align vertically */
}

.product-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 24px;
  background: var(--color-white);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  height: 100%; /* allow the card to stretch to the grid row height */
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.1);
}

.product-card__media {
  position: relative;
  background: #f0f0f0;
}

.product-card__image {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
}
}

.product-card__tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--color-yellow);
  color: #000000;
  text-transform: uppercase;
  font-size: 0.74rem;
  font-weight: 900;
}

.product-card__content {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px 24px 26px;
  flex: 1 1 auto; /* let content grow so cards have consistent internal layout */
}

.product-card__title {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.25;
  text-transform: uppercase;
}

.product-card__text {
  margin: 0;
  color: #555555;
  line-height: 1.6;
}

.product-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.product-card__meta-item {
  display: inline-flex;
  align-items: center;
  padding: 7px 11px;
  border-radius: 999px;
  background: #f4f4f4;
  color: #222222;
  font-size: 0.9rem;
  font-weight: 700;
}

.product-card__button {
  margin-top: auto; /* push the button to the bottom of the card content */
  align-self: flex-start;
}

/* Catalog and solution cards */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.solution-card__image {
  width: 100%;
  height: 290px;
  object-fit: cover;
}

.solution-card__content {
  padding: 28px;
}

.solution-card__tag {
  margin-bottom: 12px;
}

.solution-card__title {
  margin: 0 0 10px;
  text-transform: uppercase;
  font-size: 1.75rem;
}

.solution-card__text {
  margin: 0;
  color: #d8d8d8;
}

/* Materials page */
.materials-section {
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
  background: #f7f7f7;
}

.materials-section--dark {
  background: radial-gradient(circle at 75% 20%, rgba(255, 196, 0, 0.14), transparent 30%), var(--color-dark);
  color: var(--color-white);
}

.materials-section__heading,
.materials-section__title,
.materials-section__lead {
  max-width: 880px;
}

.materials-section__title {
  margin: 0 0 18px;
  text-transform: uppercase;
  font-size: clamp(2rem, 4vw, 4.2rem);
  line-height: 1.06;
}

.materials-section__lead {
  margin: 0;
  color: #555555;
  font-size: 1.08rem;
}

.materials-section--dark .materials-section__lead {
  color: #e4e4e4;
}

.materials-swatches {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.material-swatch {
  display: grid;
  gap: 8px;
  min-width: 0;
  padding: 16px;
  background: #ffffff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

.material-swatch__color {
  display: block;
  height: 84px;
  border: 1px solid rgba(0, 0, 0, 0.14);
  background: var(--swatch);
}

.material-swatch b {
  font-size: 1rem;
}

.material-swatch span:last-child {
  color: #666666;
  font-size: 0.84rem;
}

.materials-two-column {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.materials-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.materials-tags span {
  padding: 10px 14px;
  border: 1px solid #4a4a4a;
  background: #151515;
  font-weight: 800;
}

.materials-combinations {
  margin-top: 42px;
}

.materials-combinations h3 {
  margin: 0 0 14px;
  text-transform: uppercase;
  font-size: 1.1rem;
}

.materials-combinations__table {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  overflow: hidden;
  border: 1px solid #3e3e3e;
}

.materials-combinations__table span,
.materials-combinations__table strong {
  padding: 13px 14px;
  border-right: 1px solid #3e3e3e;
  border-bottom: 1px solid #3e3e3e;
}

.materials-combinations__table span {
  background: #202020;
  color: var(--color-yellow);
  text-transform: uppercase;
  font-size: 0.76rem;
}

.materials-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.materials-card {
  padding: 24px;
  border-left: 5px solid var(--color-yellow);
  background: #ffffff;
}

.materials-card h3 {
  margin: 0 0 10px;
  text-transform: uppercase;
  font-size: 1.08rem;
}

.materials-card p {
  margin: 0;
  color: #555555;
}

/* Projects page */
.project-list {
  display: grid;
  gap: 30px;
}

.project-row {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 34px;
  align-items: center;
}

.project-row--reverse {
  grid-template-columns: 0.92fr 1.08fr;
}

.project-row--reverse .project-row__image {
  order: 2;
}

.project-row__image {
  border: 1px solid #dddddd;
}

.project-row__content {
  padding: clamp(8px, 3vw, 32px);
}

.project-row__title {
  margin: 14px 0 10px;
  text-align: left;
  text-transform: uppercase;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 1.05;
}

.project-row__text {
  color: #555555;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.timeline-card {
  padding: 24px;
  border: 1px solid #e5e5e5;
  background: #f7f7f7;
}

.timeline-card__number {
  display: inline-flex;
  margin-bottom: 26px;
  padding: 5px 9px;
  background: var(--color-yellow);
  font-weight: 950;
}

.timeline-card__title {
  margin: 0 0 8px;
  text-transform: uppercase;
  font-size: 1.25rem;
}

.timeline-card__text {
  margin: 0;
  color: #555555;
}

.equipment-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
  align-items: start;
}

.equipment-section__title {
  margin: 0;
  text-transform: uppercase;
  font-size: clamp(2rem, 4vw, 4.4rem);
  line-height: 1.05;
}

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

.check-list__item {
  position: relative;
  padding: 18px 18px 18px 50px;
  border: 1px solid #333333;
  background: #151515;
}

.check-list__item::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 24px;
  width: 12px;
  height: 12px;
  background: var(--color-yellow);
}

/* Contacts page */
.contacts-page .page__shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: #000000;
}

.contacts-page .page__main,
.contacts-page .contact-section {
  flex: 1;
}

.contacts-page .page__footer {
  flex-shrink: 0;
}

.contact-section {
  position: relative;
  min-height: 680px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #000000;
}


.contact-section__panel {
  position: relative;
  z-index: 1;
  align-self: center;
  padding: clamp(44px, 7vw, 90px);
  color: var(--color-white);
}

.contact-section__title {
  margin-left: 0;
}

.contact-section__text {
  max-width: 560px;
  color: #eeeeee;
}

.contact-section__facts {
  display: grid;
  gap: 12px;
  margin-top: 34px;
}

.contact-section__fact {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-left: 14px;
  border-left: 4px solid var(--color-yellow);
  color: var(--color-white);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
}

.contact-section__fact--link:hover,
.contact-section__fact--link:focus-visible {
  color: var(--color-yellow);
  transform: translateX(2px);
}

.contact-section__fact--icon {
  width: fit-content;
}

.contact-section__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 8px;
  overflow: hidden;
}

.contact-section__icon svg {
  width: 18px;
  height: 18px;
}

.contact-section__icon--satu {
  width: 24px;
  height: 24px;
  object-fit: contain;
  border-radius: 8px;
  background: transparent;
}

.contact-section__icon--whatsapp {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  background: #ffffff;
}

.contact-section__icon--instagram {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  object-fit: contain;
}

.contact-form {
  align-self: center;
  display: grid;
  gap: 16px;
  margin: clamp(24px, 5vw, 64px);
  padding: clamp(24px, 4vw, 42px);
  background: linear-gradient(145deg, #121212, #1a1a1a);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  color: var(--color-white);
}

.contact-form__label {
  display: grid;
  gap: 7px;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #f3f3f3;
}

.contact-form__field {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-white);
  font: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.contact-form__field:focus {
  outline: none;
  border-color: var(--color-yellow);
  box-shadow: 0 0 0 3px rgba(255, 196, 0, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

.contact-form__field option {
  color: #111111;
  background: #ffffff;
}

.contact-form__textarea {
  resize: vertical;
  min-height: 110px;
}

.contact-form__button {
  margin-top: 8px;
  border-radius: 999px;
}

.contact-form--sent,
.contact-form.sent {
  outline: 4px solid var(--color-yellow);
}

/* Footer */
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(28px, 5vw, 90px);
  background: #000000;
  color: var(--color-white);
}

.site-footer__brand {
  color: var(--color-yellow);
  font-weight: 950;
}

/* Responsive styles */
@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: auto 1fr auto;
  }

  .site-header__phone,
  .site-header__button {
    display: none;
  }

  .site-nav {
    gap: 14px;
  }

  .benefit-grid,
  .benefit-grid--large,
  .about-intro__stats {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

@media (max-width: 900px) {
  body {
    background: var(--color-white);
  }

  .page__shell {
    margin: 0;
    border-radius: 0;
  }

  .site-header {
    height: 78px;
    grid-template-columns: auto auto;
    padding: 0 24px;
  }

  .nav-toggle {
    display: block;
    justify-self: end;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 78px;
    z-index: 10;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 24px;
    background: var(--color-dark);
  }

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

  .site-nav__link {
    padding: 13px 0;
  }

  .hero {
    min-height: auto;
  }

  .hero__background {
    background-image: linear-gradient(90deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.55)), url('assets/hero-building.svg');
  }

  .hero__content {
    padding: 44px 24px 46px;
  }

  .hero__benefits,
  .project-card-grid,
  .solution-grid,
  .project-row,
  .project-row--reverse,
  .contact-section,
  .equipment-section,
  .about-intro {
    grid-template-columns: 1fr;
  }

  .project-row--reverse .project-row__image {
    order: 0;
  }

  .call-to-action,
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-form {
    margin: 24px;
  }
}

@media (max-width: 620px) {
  .brand__logo {
    width: 38px;
    height: 38px;
  }

  .hero__title {
    font-size: 2.45rem;
  }

  .hero__text {
    font-size: 1rem;
  }

  .hero__actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .hero__benefits,
  .benefit-grid,
  .benefit-grid--large,
  .timeline,
  .about-intro__stats {
    grid-template-columns: 1fr;
  }

  .about-page .benefit-grid {
    grid-template-columns: 1fr;
  }

  .about-preview,
  .benefits-section,
  .values-section,
  .project-list,
  .timeline,
  .projects-preview,
  .solutions-section,
  .equipment-section,
  .call-to-action,
  .about-intro {
    padding: 48px 20px;
  }

  .page-hero {
    padding: 64px 20px;
  }

  .section-title,
  .page-hero__title,
  .contact-section__title,
  .call-to-action__title,
  .equipment-section__title,
  .project-row__title,
  .section-heading__title {
    font-size: 2rem;
  }

  .project-card__image,
  .solution-card__image {
    height: 220px;
  }

  .site-footer {
    flex-direction: column;
    padding: 24px 20px;
  }
}






/* Product cards on projects page */
.products-section {
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
  background: var(--color-white);
}

.products-section__heading {
  align-items: flex-end;
}

.section-heading__text {
  max-width: 460px;
  margin: 0;
  color: #555555;
  font-weight: 700;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.product-card {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  box-shadow: var(--shadow-card);
}

.product-card__media {
  position: relative;
  background: var(--color-dark);
}

.product-card__tag {
  position: absolute;
  left: 16px;
  top: 16px;
  z-index: 2;
  display: inline-flex;
  padding: 7px 12px;
  background: var(--color-yellow);
  color: #000000;
  text-transform: uppercase;
  font-size: 0.76rem;
  font-weight: 950;
}

.product-card__image {
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.product-card__content {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 24px;
}

.product-card__subtitle {
  margin: 0 0 8px;
  color: var(--color-yellow-dark);
  text-transform: uppercase;
  font-size: 0.76rem;
  font-weight: 950;
}

.product-card__title {
  margin: 0 0 12px;
  text-transform: uppercase;
  font-size: 1.35rem;
  line-height: 1.08;
}

.product-card__text {
  margin: 0 0 18px;
  color: #555555;
}

.product-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  margin-bottom: 18px;
}

.product-card__meta-item {
  padding: 6px 10px;
  background: #f1f1f1;
  color: #111111;
  font-size: 0.78rem;
  font-weight: 900;
}

.product-card__button {
  width: 100%;
}

/* Product detail pages */
.product-detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 36px;
  align-items: center;
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
  background: radial-gradient(circle at 72% 34%, rgba(255, 196, 0, 0.18), transparent 30%), var(--color-dark);
  color: var(--color-white);
}

.product-detail-hero__content {
  min-width: 0;
}

.product-detail-hero__back {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--color-yellow);
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 900;
}

.product-detail-hero__tag {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 7px 12px;
  background: var(--color-yellow);
  color: #000000;
  text-transform: uppercase;
  font-size: 0.76rem;
  font-weight: 950;
}

.product-detail-hero__title {
  max-width: 780px;
  margin: 0 0 20px;
  text-transform: uppercase;
  font-size: clamp(2.4rem, 5vw, 5.6rem);
  line-height: 1.06;
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* Keep the primary headings on every page comfortably readable. */
.hero__title,
.section-title,
.page-hero__title,
.contact-section__title,
.section-heading__title,
.call-to-action__title,
.about-intro__title,
.project-row__title,
.equipment-section__title,
.product-detail__title,
.product-includes__title {
  line-height: 1.06;
}

.product-detail-hero__text {
  max-width: 620px;
  margin: 0 0 30px;
  color: #eeeeee;
  font-size: 1.12rem;
}

.product-detail-hero__image {
  width: 100%;
  min-height: 420px;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

/* Project photo gallery */
.project-gallery {
  position: relative;
  height: 420px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: #111111;
  touch-action: pan-y;
}

.project-gallery__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: zoom-in;
}

.project-gallery__image[hidden] {
  display: none;
}

.project-gallery__button {
  position: absolute;
  top: 50%;
  z-index: 1;
  display: grid;
  width: 46px;
  height: 46px;
  padding: 0;
  place-items: center;
  transform: translateY(-50%);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #ffffff;
  cursor: pointer;
  font-size: 1.55rem;
  line-height: 1;
  transition: background-color 160ms ease, transform 160ms ease;
}

.project-gallery__button:hover,
.project-gallery__button:focus-visible {
  background: var(--color-yellow);
  color: #000000;
  outline: none;
}

.project-gallery__button:active {
  transform: translateY(-50%) scale(0.94);
}

.project-gallery__button--previous {
  left: 18px;
}

.project-gallery__button--next {
  right: 18px;
}

.project-gallery__counter {
  position: absolute;
  right: 18px;
  bottom: 18px;
  padding: 6px 10px;
  background: rgba(0, 0, 0, 0.68);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 800;
}

.photo-modal[hidden] {
  display: none;
}

.photo-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  padding: 28px;
  background: rgba(0, 0, 0, 0.88);
}

.photo-modal__dialog {
  position: relative;
  max-width: min(1200px, 94vw);
  max-height: 90vh;
}

.photo-modal__image {
  display: block;
  max-width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.photo-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 1;
  display: grid;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.64);
  color: #ffffff;
  cursor: pointer;
  font-size: 2rem;
  line-height: 1;
}

.photo-modal__close:hover,
.photo-modal__close:focus-visible {
  background: var(--color-yellow);
  color: #000000;
  outline: none;
}

.photo-modal-open {
  overflow: hidden;
}

.product-detail {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
  background: var(--color-white);
}

.product-detail__label {
  margin: 0 0 12px;
  color: var(--color-yellow-dark);
  text-transform: uppercase;
  font-weight: 900;
}

.product-detail__title,
.product-includes__title {
  margin: 0 0 18px;
  text-transform: uppercase;
  font-size: clamp(2rem, 4vw, 4.2rem);
  line-height: 1.05;
}

.product-detail__text {
  max-width: 820px;
  margin: 0;
  color: #555555;
  font-size: 1.08rem;
}

.product-detail__text--spaced {
  margin-top: 18px;
}

.service-cta__button {
  display: flex;
  width: fit-content;
  margin: 24px auto 0;
}

.product-usage {
  margin-top: 32px;
}

.product-usage__title {
  margin: 0 0 12px;
  text-transform: uppercase;
  font-size: 1.1rem;
}

.product-usage__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.product-usage__item {
  padding: 8px 12px;
  background: #f1f1f1;
  font-weight: 900;
}

.product-specs {
  padding: 28px;
  background: #f7f7f7;
  border-left: 5px solid var(--color-yellow);
}

.product-specs__title {
  margin: 0 0 18px;
  text-transform: uppercase;
  font-size: 1.2rem;
}

.product-specs__list {
  display: grid;
  gap: 14px;
  margin: 0;
}

.product-specs__row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid #dddddd;
}

.product-specs__key {
  color: #666666;
  font-weight: 800;
}

.product-specs__value {
  margin: 0;
  text-align: right;
  font-weight: 950;
}

.product-specs__value--two-line {
  display: block;
  max-width: 172px;
  margin-left: auto;
  font-size: 0.9rem;
  white-space: nowrap;
}

.product-specs--advantages .product-specs__key {
  flex: 0 1 110px;
}

.product-specs--advantages .product-specs__value {
  flex: 1 1 0;
}

.product-includes {
  padding: clamp(56px, 7vw, 96px) clamp(28px, 5vw, 90px);
  background: radial-gradient(circle at 70% 20%, rgba(255, 196, 0, 0.12), transparent 28%), var(--color-dark);
  color: var(--color-white);
}

.product-includes__list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.product-includes__item {
  position: relative;
  padding: 20px 18px 20px 48px;
  border: 1px solid #333333;
  background: #151515;
  font-weight: 800;
}

.product-includes__item::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 26px;
  width: 12px;
  height: 12px;
  background: var(--color-yellow);
}

@media (max-width: 1180px) {
  .products-grid,
  .product-includes__list {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .materials-two-column {
    grid-template-columns: 1fr;
  }

  .product-detail-hero__image {
    min-height: 300px;
  }

  .project-gallery,
  .project-gallery__image {
    height: 300px;
  }
}

@media (max-width: 620px) {
  .products-section,
  .product-detail-hero,
  .product-detail,
  .product-includes {
    padding: 48px 20px;
  }

  .products-grid,
  .product-includes__list {
    grid-template-columns: 1fr;
  }

  .materials-swatches,
  .materials-cards {
    grid-template-columns: 1fr;
  }

  .materials-combinations__table {
    font-size: 0.82rem;
  }

  .materials-combinations__table span,
  .materials-combinations__table strong {
    padding: 10px 8px;
  }

  .product-card__image {
    height: 220px;
  }

  .project-gallery,
  .project-gallery__image {
    height: 240px;
  }

  .project-gallery__button {
    width: 40px;
    height: 40px;
  }

  .project-gallery__button--previous {
    left: 10px;
  }

  .project-gallery__button--next {
    right: 10px;
  }

  .project-gallery__counter {
    right: 10px;
    bottom: 10px;
  }
}