:root {
  --blue: #0100c8;
  --blue-dark: #111557;
  --ink: #171f2b;
  --muted: #626b7c;
  --line: #e5e9f2;
  --panel: #f4f7fb;
  --warm: #ff6a00;
  --soft: #fffcfa;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(23, 31, 43, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

.topbar {
  background: var(--blue);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
  padding: 10px 20px;
  text-align: center;
}

.site-header {
  align-items: center;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 12px 32px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  align-items: center;
  display: inline-flex;
  font-size: 20px;
  font-weight: 900;
  gap: 10px;
  letter-spacing: 0;
}

.brand-mark {
  align-items: center;
  background: var(--blue);
  color: var(--white);
  display: inline-flex;
  font-size: 18px;
  height: 36px;
  justify-content: center;
  width: 36px;
}

.main-nav {
  align-items: center;
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
}

.main-nav a {
  color: #30384a;
}

.main-nav a:hover,
.contact-links a:hover {
  color: var(--blue);
}

.header-cta,
.btn {
  align-items: center;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.header-cta {
  background: var(--ink);
  color: var(--white);
  min-height: 42px;
  padding: 10px 18px;
}

.btn:hover,
.header-cta:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--warm);
  box-shadow: 0 10px 24px rgba(255, 106, 0, 0.28);
  color: var(--white);
}

.btn-primary:hover {
  background: #e65f00;
  box-shadow: 0 14px 30px rgba(255, 106, 0, 0.34);
}

.btn-secondary {
  background: var(--white);
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost {
  background: var(--ink);
  color: var(--white);
}

.menu-toggle {
  background: var(--white);
  border: 1px solid var(--line);
  display: none;
  font: inherit;
  font-weight: 800;
  min-height: 40px;
  padding: 8px 12px;
}

.hero {
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  min-height: calc(100vh - 110px);
  padding: 76px 5vw 42px;
}

.hero-copy {
  align-self: center;
  max-width: 780px;
}

.eyebrow {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(44px, 7vw, 86px);
  line-height: 0.95;
  margin-bottom: 28px;
  max-width: 980px;
}

h2 {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.05;
  margin-bottom: 14px;
}

h3 {
  font-size: 20px;
  line-height: 1.2;
  margin-bottom: 10px;
}

.hero-text,
.section-head p,
.contact-copy p,
.product-summary,
.site-footer p,
.site-footer span,
.value-grid p,
.faq-list p {
  color: var(--muted);
}

.hero-text {
  font-size: 18px;
  max-width: 720px;
}

.hero-actions,
.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 30px 0;
}

.hero-metrics {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
  padding-top: 26px;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 14px;
}

.hero-metrics strong {
  color: var(--ink);
  display: block;
  font-size: 24px;
  line-height: 1.1;
}

.hero-panel {
  align-content: center;
  background: var(--panel);
  display: grid;
  gap: 18px;
  padding: 32px;
}

.image-panel {
  align-items: center;
  background: #06101f;
  min-height: 520px;
  overflow: hidden;
  padding: 0;
}

.image-panel img {
  display: block;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
  object-position: center;
  width: 100%;
}

.license-card {
  color: var(--white);
  min-height: 180px;
  padding: 28px;
}

.license-card span {
  display: block;
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.license-card strong {
  display: block;
  font-size: 34px;
  line-height: 1;
  margin-bottom: 12px;
}

.license-card small {
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
}

.card-blue {
  background: var(--blue);
}

.card-dark {
  background: var(--ink);
}

.card-orange {
  background: var(--warm);
}

.brand-strip {
  align-items: center;
  border-block: 1px solid var(--line);
  display: grid;
  gap: 0;
  grid-template-columns: repeat(6, 1fr);
}

.brand-strip a,
.brand-strip span {
  border-right: 1px solid var(--line);
  color: #343d51;
  font-size: 18px;
  font-weight: 900;
  padding: 24px 12px;
  text-align: center;
}

.brand-strip a:hover {
  color: var(--blue);
}

.brand-strip a:last-child,
.brand-strip span:last-child {
  border-right: 0;
}

.section {
  padding: 84px 5vw;
}

.section-muted {
  background: var(--panel);
}

.section-head {
  margin: 0 auto 36px;
  max-width: 820px;
  text-align: center;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 30px;
}

.filter-chip {
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  min-height: 42px;
  padding: 10px 16px;
}

.filter-chip.active,
.filter-chip:hover {
  background: var(--blue);
  border-color: var(--blue);
  color: var(--white);
}

.product-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-card {
  background: var(--white);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 18px;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.product-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.product-visual {
  align-items: center;
  aspect-ratio: 1 / 1;
  background: #06101f;
  display: flex;
  margin-bottom: 18px;
  overflow: hidden;
  padding: 10px;
  position: relative;
}

.product-visual img {
  display: block;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform 0.2s ease;
  width: 100%;
}

.product-card:hover .product-visual img {
  transform: scale(1.04);
}

.product-card .category {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.product-card h3 {
  margin-top: 8px;
}

.product-facts {
  border-block: 1px solid var(--line);
  display: grid;
  gap: 8px;
  margin: 8px 0 14px;
  padding: 12px 0;
}

.product-facts span {
  color: var(--muted);
  display: flex;
  font-size: 13px;
  gap: 12px;
  justify-content: space-between;
}

.product-facts strong {
  color: var(--ink);
  white-space: nowrap;
}

.product-card p {
  color: var(--muted);
  flex: 1;
  font-size: 14px;
}

.card-actions {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
  margin-top: 14px;
}

.card-actions a {
  border: 1px solid var(--line);
  font-size: 14px;
  font-weight: 900;
  min-height: 42px;
  padding: 10px 12px;
  text-align: center;
}

.card-actions a:first-child {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.related-links {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0 auto;
  max-width: 1180px;
}

.related-links a {
  background: var(--soft);
  border: 1px solid var(--line);
  color: var(--ink);
  font-weight: 800;
  min-height: 64px;
  padding: 16px;
}

.related-links a:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.blog-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0 auto;
  max-width: 1180px;
}

.blog-card a {
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--ink);
  display: block;
  height: 100%;
  padding: 22px;
}

.blog-card a:hover {
  border-color: var(--blue);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.blog-card span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.blog-card h2,
.blog-card h3 {
  font-size: 20px;
  line-height: 1.25;
  margin: 12px 0;
}

.blog-card p {
  color: var(--muted);
  font-size: 14px;
}

.article-page {
  background: var(--white);
}

.article-hero {
  background: var(--soft);
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  padding: 76px 5vw;
}

.article-hero .eyebrow,
.article-hero h1,
.article-hero p {
  grid-column: 1;
  margin-right: 20px;
}

.article-hero h1 {
  max-width: 760px;
}

.article-hero p {
  color: var(--muted);
  font-size: 18px;
  max-width: 740px;
}

.article-hero img {
  align-self: center;
  background: #06101f;
  grid-column: 2;
  grid-row: 1 / span 3;
  height: 100%;
  max-height: 440px;
  object-fit: contain;
  padding: 18px;
  width: 100%;
}

.article-body {
  margin: 0 auto;
  max-width: 860px;
  padding: 70px 24px;
}

.article-body section + section {
  margin-top: 42px;
}

.article-body h2 {
  font-size: 30px;
}

.article-body p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.78;
}

.article-cta {
  background: var(--soft);
  border: 1px solid var(--line);
  padding: 26px;
}

.value-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.value-grid article,
.faq-list details,
.inquiry-form,
.product-detail-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 26px;
}

.value-icon {
  color: var(--blue);
  display: inline-block;
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 28px;
}

.faq-list {
  display: grid;
  gap: 12px;
  margin: 0 auto;
  max-width: 900px;
}

.faq-list summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
}

.faq-list p {
  margin: 14px 0 0;
}

.contact-section {
  align-items: start;
  display: grid;
  gap: 44px;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.7fr);
}

.contact-copy {
  max-width: 720px;
}

.contact-links {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.contact-links a {
  color: var(--ink);
  font-weight: 900;
}

.inquiry-form {
  display: grid;
  gap: 16px;
}

.inquiry-form label {
  color: var(--ink);
  display: grid;
  font-size: 13px;
  font-weight: 900;
  gap: 7px;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  border: 1px solid var(--line);
  color: var(--ink);
  font: inherit;
  min-height: 48px;
  padding: 12px 14px;
  width: 100%;
}

.inquiry-form textarea {
  resize: vertical;
}

.product-detail {
  background: var(--soft);
  padding: 70px 5vw;
}

.product-detail-card {
  display: grid;
  gap: 44px;
  grid-template-columns: minmax(320px, 0.9fr) minmax(0, 1fr);
  margin: 0 auto;
  max-width: 1180px;
}

.product-detail-visual {
  align-items: center;
  aspect-ratio: 1 / 1;
  background: #06101f;
  display: flex;
  max-height: 560px;
  overflow: hidden;
  padding: 18px;
}

.product-detail-visual img {
  display: block;
  height: 100%;
  object-fit: contain;
  object-position: center;
  width: 100%;
}

.product-info-panel {
  align-self: center;
}

.product-summary {
  font-size: 17px;
}

.product-meta {
  border-block: 1px solid var(--line);
  display: grid;
  gap: 12px;
  margin: 28px 0;
  padding: 22px 0;
}

.product-meta span {
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

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

.site-footer {
  background: var(--ink);
  color: var(--white);
  display: grid;
  gap: 28px;
  grid-template-columns: 1.4fr 0.7fr 1fr;
  padding: 46px 5vw 28px;
}

.site-footer strong {
  display: block;
  margin-bottom: 14px;
}

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

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

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.7);
  grid-column: 1 / -1;
  padding-top: 20px;
  text-align: center;
}

@media (max-width: 980px) {
  .site-header {
    flex-wrap: wrap;
    padding: 12px 20px;
  }

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

  .main-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 12px;
    padding: 12px 0;
  }

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

  .header-cta {
    display: none;
  }

  .hero,
  .contact-section,
  .product-detail-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 54px;
  }

  .hero-metrics,
  .value-grid,
  .value-grid.compact {
    grid-template-columns: 1fr;
  }

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

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

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

  .article-hero {
    grid-template-columns: 1fr;
  }

  .article-hero .eyebrow,
  .article-hero h1,
  .article-hero p,
  .article-hero img {
    grid-column: 1;
    grid-row: auto;
  }

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

  .site-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .topbar {
    font-size: 12px;
  }

  .brand {
    font-size: 17px;
  }

  .hero,
  .section,
  .product-detail {
    padding-left: 20px;
    padding-right: 20px;
  }

  h1 {
    font-size: 42px;
  }

  .hero-panel {
    padding: 18px;
  }

  .image-panel {
    min-height: 280px;
    padding: 0;
  }

  .image-panel img {
    min-height: 280px;
  }

  .license-card {
    min-height: 150px;
    padding: 22px;
  }

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

  .related-links {
    grid-template-columns: 1fr;
  }

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

  .article-hero {
    padding: 54px 20px;
  }

  .article-body {
    padding: 54px 20px;
  }

  .article-body h2 {
    font-size: 25px;
  }

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

  .product-detail-card {
    padding: 18px;
  }

  .product-detail-visual {
    max-height: none;
  }
}