:root {
  --ink: #17212b;
  --muted: #63717f;
  --line: #d9e3ea;
  --panel: #f5f8fa;
  --brand: #00a6ce;
  --brand-dark: #007d9b;
  --accent: #ed1c24;
  --white: #fff;
  --shadow: 0 18px 45px rgba(17, 35, 52, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}

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

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

.skip-link {
  position: absolute;
  left: 12px;
  top: -40px;
  background: var(--ink);
  color: var(--white);
  padding: 8px 12px;
  z-index: 20;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 42px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.brand img {
  width: 168px;
  max-height: 52px;
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-weight: 650;
}

.site-nav a {
  color: #263545;
}

.nav-cta {
  padding: 10px 16px;
  background: var(--ink);
  color: var(--white) !important;
  border-radius: 6px;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--white);
  padding: 9px 13px;
  border-radius: 6px;
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(420px, 1.1fr);
  gap: 44px;
  align-items: center;
  padding: 72px 6vw 54px;
  background: linear-gradient(180deg, #f7fbfd 0%, #ffffff 100%);
}

.hero-copy h1,
.product-summary h1,
.article-layout h1 {
  margin: 0;
  font-size: clamp(38px, 5vw, 72px);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-copy p,
.product-summary p,
.lead {
  color: var(--muted);
  font-size: 18px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-dark);
  font-weight: 800;
  text-transform: uppercase;
  font-size: 13px;
}

.hero-media {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
  background: var(--panel);
}

.hero-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.actions,
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.button,
.filters button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border-radius: 6px;
  border: 1px solid var(--line);
  font-weight: 760;
  cursor: pointer;
}

.button.primary,
.filters button.active {
  background: var(--brand);
  color: var(--white);
  border-color: var(--brand);
}

.button.secondary {
  background: var(--white);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.trust-strip div {
  padding: 24px 5vw;
  background: var(--white);
}

.trust-strip strong {
  display: block;
  font-size: 28px;
}

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

.section,
.split-band,
.cta-band,
.product-hero,
.article-layout,
.contact-section {
  padding: 72px 6vw;
}

.section-head {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-head h2,
.split-band h2,
.cta-band h2,
.seo-copy h2,
.info-panel h2 {
  margin: 0 0 12px;
  font-size: clamp(27px, 3vw, 42px);
  line-height: 1.12;
}

.section-head p,
.split-band p,
.cta-band p,
.seo-copy p,
.info-panel p {
  color: var(--muted);
}

.category-grid,
.product-grid,
.article-grid,
.product-family-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.brand-series-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.category-card,
.product-card,
.article-card,
.info-panel,
.product-family,
.brand-series-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.category-card:hover,
.product-card:hover,
.article-card:hover,
.product-family:hover,
.brand-series-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.category-card span,
.chip,
.brand-series-card span {
  display: inline-flex;
  padding: 5px 9px;
  border-radius: 999px;
  background: #e9f8fb;
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 800;
}

.category-card h2,
.product-card h2,
.article-card h2,
.product-family h2,
.brand-series-card h2 {
  margin: 14px 0 10px;
  font-size: 22px;
  line-height: 1.2;
}

.category-card p,
.product-card p,
.article-card p,
.product-family p,
.brand-series-card p {
  color: var(--muted);
}

.brand-series-card {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}

.brand-series-image {
  overflow: hidden;
  border-radius: 6px;
  background: var(--panel);
}

.brand-series-image img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.brand-series-card small {
  display: block;
  color: var(--muted);
}

.product-family {
  display: grid;
  gap: 18px;
  align-content: start;
}

.series-table-wrap {
  overflow-x: auto;
}

.series-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 14px;
}

.series-table th,
.series-table td {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.series-table td:nth-child(2) {
  color: var(--muted);
}

.series-table td:last-child {
  text-align: right;
  font-weight: 800;
}

.table-note {
  margin: 10px 0 0;
  font-size: 14px;
}

.product-visual {
  margin: -8px -8px 18px;
  overflow: hidden;
  border-radius: 6px;
  background: var(--panel);
}

.product-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.product-card dl,
.spec-list {
  display: grid;
  gap: 9px;
  margin: 18px 0 0;
}

.product-card dl div,
.spec-list div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 9px;
  border-top: 1px solid var(--line);
}

dt {
  color: var(--muted);
}

dd {
  margin: 0;
  font-weight: 760;
  text-align: right;
}

.split-band {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 42px;
  background: var(--ink);
  color: var(--white);
}

.split-band p,
.split-band .feature-list {
  color: #cbd7e2;
}

.feature-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.feature-list li + li {
  margin-top: 10px;
}

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

.detail-card-grid div {
  min-height: 168px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.detail-card-grid h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.detail-card-grid p,
.small-note {
  margin: 0;
  color: var(--muted);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--line);
}

.spec-table th,
.spec-table td {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  width: 34%;
  color: var(--muted);
  font-weight: 760;
}

.spec-table td {
  color: var(--ink);
  font-weight: 650;
}

.compact-faq {
  margin-top: 20px;
}

.cta-band {
  margin: 0 6vw 72px;
  border-radius: 8px;
  background: #e9f8fb;
  text-align: center;
}

.narrow,
.article-layout {
  max-width: 930px;
  margin: 0 auto;
}

.seo-copy {
  margin-top: 30px;
}

.seo-copy a {
  color: var(--brand-dark);
  font-weight: 760;
  text-decoration: underline;
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(360px, 0.9fr) minmax(0, 1.1fr);
  gap: 48px;
  align-items: center;
}

.product-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--panel);
}

.product-gallery img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.product-gallery img:first-child {
  grid-column: 1 / -1;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 0.7fr;
  gap: 28px;
  align-items: start;
}

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

.metric-grid div {
  min-height: 132px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.metric-grid strong {
  display: block;
  margin-bottom: 8px;
  color: var(--brand-dark);
  font-size: 31px;
  line-height: 1;
}

.metric-grid span,
.resource-table span,
.contact-cards span {
  display: block;
  color: var(--muted);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 30px;
}

.timeline div {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.timeline strong {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--brand);
  color: var(--white);
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 18px 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.resource-table {
  display: grid;
  gap: 12px;
}

.resource-table div {
  display: grid;
  grid-template-columns: minmax(220px, 0.34fr) minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

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

.text-link {
  color: var(--brand-dark);
  font-weight: 760;
  text-decoration: underline;
  white-space: nowrap;
}

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

.image-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.contact-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 42px;
}

.contact-cards {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.contact-cards a {
  display: block;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.quote-form {
  display: grid;
  gap: 16px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.quote-form label {
  display: grid;
  gap: 7px;
  font-weight: 760;
}

.quote-form input,
.quote-form textarea,
.quote-form select {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
}

.site-footer {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 28px;
  padding: 48px 6vw;
  background: #111923;
  color: var(--white);
}

.site-footer h2 {
  margin: 0 0 12px;
  font-size: 16px;
}

.site-footer a,
.site-footer p {
  display: block;
  margin: 0 0 8px;
  color: #cbd7e2;
}

.footer-logo {
  width: 155px;
  margin-bottom: 16px;
  background: var(--white);
  padding: 8px;
  border-radius: 6px;
}

@media (max-width: 920px) {
  .site-header {
    padding: 0 18px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

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

  .site-nav a {
    padding: 14px 20px;
  }

  .nav-cta {
    margin: 8px 18px 18px;
    text-align: center;
  }

  .hero,
  .product-hero,
  .split-band,
  .two-col,
  .contact-section,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .category-grid,
  .product-grid,
  .article-grid,
  .product-family-list,
  .brand-series-grid,
  .detail-card-grid,
  .timeline,
  .image-grid,
  .metric-grid,
  .trust-strip {
    grid-template-columns: 1fr;
  }

  .brand-series-card {
    grid-template-columns: 92px minmax(0, 1fr);
  }

  .resource-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .hero {
    padding-top: 48px;
  }
}