.product-hero {
  padding: 88px 0 96px;
  background: var(--n50);
}

.product-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 80px;
  align-items: center;
}

.product-hero-copy h1 {
  margin-top: 18px;
}

.product-hero-copy > p:last-of-type {
  max-width: 650px;
  margin-top: 24px;
  font-size: 17px;
}

.product-hero .hero-actions {
  justify-content: flex-start;
}

.product-contract {
  padding: 32px;
  color: var(--n200);
  background: var(--midnight);
  border-radius: 16px;
  box-shadow: 0 20px 52px rgba(2,35,45,.18);
}

.contract-label {
  margin-bottom: 22px;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.contract-stage {
  padding: 18px 20px;
  border: 1px solid #315763;
  border-radius: 10px;
}

.contract-stage span,
.contract-stage strong,
.contract-stage small {
  display: block;
}

.contract-stage span {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.contract-stage strong {
  margin-top: 5px;
  color: #fff;
  font: 700 19px/1.3 Montserrat,Inter,sans-serif;
}

.contract-stage small {
  margin-top: 5px;
  color: var(--n300);
  font-size: 13px;
}

.contract-model {
  background: var(--primary);
  border-color: var(--cyan);
}

.product-contract > i {
  display: block;
  width: 1px;
  height: 18px;
  margin: 0 auto;
  background: var(--cyan);
}

.product-process {
  background: #fff;
}

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

.product-steps article {
  position: relative;
  min-height: 280px;
  padding: 28px;
  background: var(--frost);
  border: 1px solid var(--n200);
  border-top: 3px solid var(--primary);
  transition: background-color .2s ease,border-color .2s ease,color .2s ease;
}

.product-steps article + article {
  border-left: 0;
}

.product-steps article:not(:last-child)::after {
  content: '';
  position: absolute;
  z-index: 1;
  top: 50%;
  right: -18px;
  width: 36px;
  border-top: 2px solid var(--blue);
}

.product-steps article > span,
.product-steps article > small {
  color: var(--blue-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.product-steps h3 {
  margin-top: 18px;
}

.product-steps p {
  margin-top: 12px;
}

.product-steps article > small {
  display: block;
  margin-top: 20px;
}

.product-steps article:hover {
  color: var(--n200);
  background: var(--primary);
  border-color: var(--primary);
  border-top-color: var(--cyan);
}

.product-steps article:hover h3 {
  color: #fff;
}

.product-steps article:hover > span,
.product-steps article:hover > small {
  color: var(--cyan);
}

.product-example {
  background: var(--frost);
}

.product-example .section-heading {
  margin-bottom: 48px;
}

.estate-viewer {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--n300);
  border-radius: 16px;
  box-shadow: 0 18px 50px rgba(2,35,45,.1);
}

.estate-tabs {
  display: grid;
  grid-template-columns: repeat(7,minmax(0,1fr));
  padding: 0 26px;
  background: var(--n50);
  border-bottom: 1px solid var(--n200);
}

.estate-tabs button {
  position: relative;
  display: grid;
  gap: 2px;
  padding: 18px 12px 16px;
  color: var(--n600);
  background: transparent;
  border: 0;
  font-size: 13px;
  font-weight: 700;
  text-align: left;
}

.estate-tabs button::after {
  content: '';
  position: absolute;
  right: 12px;
  bottom: -1px;
  left: 12px;
  height: 3px;
  background: transparent;
}

.estate-tabs button span {
  color:var(--n600);
  font-size: 10px;
  letter-spacing: .08em;
}

.estate-tabs button:hover,
.estate-tabs button.active {
  color: var(--primary);
}

.estate-tabs button.active::after {
  background: var(--blue);
}

.estate-pages {
  padding: 32px;
}

.estate-page > header {
  display: grid;
  grid-template-columns: minmax(300px,.8fr) minmax(360px,1.2fr);
  gap: 56px;
  align-items: end;
  min-height: 92px;
  margin-bottom: 24px;
}

.estate-page > header span {
  color: var(--blue-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.estate-page > header h3 {
  margin-top: 6px;
}

.estate-page > header > p {
  max-width: 620px;
  font-size: 15px;
}

.estate-image {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 560px;
  overflow: hidden;
  background: var(--frost);
  border: 1px solid var(--n200);
  border-radius: 10px;
  cursor: zoom-in;
}

.estate-image img {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
}

.estate-image-tall img {
  height: 100%;
}

.estate-image-compact {
  height: 380px;
}

.estate-controls {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  padding: 0 32px 28px;
}

.estate-controls button {
  width: fit-content;
  padding: 9px 16px;
  color: var(--primary);
  background: transparent;
  border: 1px solid var(--n300);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 700;
}

.estate-controls button:last-child {
  justify-self: end;
}

.estate-controls button:hover:not(:disabled) {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.estate-controls button:disabled {
  cursor: default;
  opacity: .35;
}

.estate-controls span {
  color:var(--n600);
  font-size: 12px;
}

.estate-controls b {
  color: var(--primary);
}

.product-technology {
  color: var(--n300);
  background: var(--midnight);
  border-top-color: var(--midnight);
}

.technology-heading {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 96px;
  align-items: end;
  margin-bottom: 52px;
}

.technology-heading .eyebrow {
  color: var(--cyan);
}

.technology-heading h2 {
  max-width: 560px;
  margin-top: 14px;
  color: #fff;
}

.technology-heading > p {
  max-width: 590px;
  color: var(--n300);
}

.substrate-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 1px;
  padding-block: 1px;
  background: #315763;
}

.substrate-grid article {
  min-height: 250px;
  padding: 28px;
  background: var(--midnight);
  transition: background-color .2s ease;
}

.substrate-grid article:hover {
  background: var(--primary);
}

.substrate-grid span {
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
}

.substrate-grid h3 {
  margin-top: 22px;
  color: #fff;
  font-size: 19px;
}

.substrate-grid p {
  margin-top: 12px;
  color: var(--n300);
  font-size: 14px;
}

.product-scope {
  background: #fff;
}

.scope-heading {
  max-width: 820px;
}

.scope-heading .button {
  margin-top: 28px;
}

.scope-catalog {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 20px;
  align-items: start;
}

.catalog-panel {
  padding: 30px;
  background: var(--frost);
  border: 1px solid var(--n200);
  border-radius: 14px;
}

.catalog-panel header {
  min-height: 88px;
}

.catalog-panel header h3 {
  max-width: 480px;
  margin-top: 8px;
}

.catalog-group {
  display: block;
  padding-top: 20px;
  border-top: 1px solid var(--n300);
}

.catalog-group + .catalog-group {
  margin-top: 26px;
}

.catalog-group h4 {
  margin: 0 0 12px;
  color: var(--blue-dark);
  font: 700 11px/1.5 Inter,sans-serif;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.technology-list {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  column-gap: 22px;
}

.source-catalog .technology-list,
.technology-list-small {
  grid-template-columns: repeat(2,minmax(0,1fr));
}

.technology-item {
  display: grid;
  grid-template-columns: 48px minmax(0,1fr);
  gap: 12px;
  align-items: center;
  min-height: 64px;
  padding: 10px 0;
}

.technology-item img {
  display: block;
  width: 46px;
  height: 30px;
  object-fit: contain;
  object-position: left center;
}

.technology-item strong {
  color: var(--ink);
  font-size: 13px;
  line-height: 1.3;
}

.product-contact {
  padding: 80px 0;
  color: var(--n200);
  background: var(--primary);
}

.product-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 96px;
  align-items: center;
}

.product-contact .eyebrow {
  color: var(--cyan);
}

.product-contact h2 {
  max-width: 520px;
  margin-top: 14px;
  color: #fff;
}

.product-contact .button {
  margin-top: 24px;
}

@media (max-width: 960px) {
  .product-hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .scope-catalog {
    grid-template-columns: 1fr;
  }

  .catalog-panel header {
    min-height: 0;
    margin-bottom: 24px;
  }

  .product-contract {
    max-width: 680px;
  }

  .product-steps {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .product-steps article + article {
    border-left: 1px solid var(--n200);
  }

  .product-steps article:not(:last-child)::after {
    display: none;
  }

  .estate-tabs {
    overflow-x: auto;
    grid-template-columns: repeat(7,130px);
  }

  .estate-page > header {
    grid-template-columns: 1fr;
    gap: 12px;
    align-items: start;
  }

  .technology-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

}

@media (max-width: 800px) {
  .product-hero {
    padding: 56px 0 64px;
  }

  .product-hero-copy > p:last-of-type {
    font-size: 16px;
  }

  .product-hero .hero-actions {
    align-items: flex-start;
  }

  .product-contract {
    padding: 24px;
  }

  .product-steps {
    grid-template-columns: 1fr;
  }

  .product-steps article {
    min-height: 0;
  }

  .estate-tabs {
    padding-inline: 12px;
  }

  .estate-pages {
    padding: 24px 18px;
  }

  .estate-page > header {
    min-height: 0;
  }

  .estate-page > header > p {
    font-size: 14px;
  }

  .estate-image {
    height: 440px;
  }

  .estate-image-compact {
    height: 340px;
  }

  .estate-controls {
    padding: 0 18px 22px;
  }

  .substrate-grid article {
    min-height: 220px;
  }

  .technology-list,
  .source-catalog .technology-list,
  .technology-list-small {
    grid-template-columns: repeat(2,minmax(0,1fr));
  }

  .product-contact {
    padding: 64px 0;
  }

  .product-contact-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 520px) {
  .product-contract {
    padding: 18px;
  }

  .contract-stage {
    padding: 16px;
  }

  .catalog-panel {
    padding: 22px;
  }

  .technology-list,
  .source-catalog .technology-list,
  .technology-list-small {
    grid-template-columns: 1fr;
  }

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

  .substrate-grid article {
    min-height: 0;
    padding: 26px 22px;
  }

  .estate-tabs {
    grid-template-columns: repeat(7,112px);
  }

  .estate-tabs button {
    padding-inline: 8px;
  }

  .estate-image {
    height: 360px;
  }

  .estate-image-compact {
    height: 280px;
  }

}