:root {
  --ink: #1d252f;
  --muted: #5f6f7f;
  --line: #dfe6ee;
  --paper: #f7f9fb;
  --white: #ffffff;
  --navy: #14324a;
  --blue: #1f6fb2;
  --teal: #15847d;
  --gold: #c5963b;
  --shadow: 0 20px 50px rgba(20, 50, 74, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Inter", Arial, sans-serif;
  background: var(--white);
  line-height: 1.55;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  display: block;
  width: clamp(170px, 18vw, 250px);
  max-height: 58px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.5vw, 28px);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

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

.cart-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--navy);
}

.cart-link span {
  display: inline-grid;
  min-width: 24px;
  height: 24px;
  place-items: center;
  border-radius: 999px;
  background: var(--gold);
  color: #1f2429;
  font-size: 0.78rem;
}

.hero {
  position: relative;
  min-height: 680px;
  display: grid;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
}

.hero img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(8, 22, 34, 0.82) 0%, rgba(10, 31, 48, 0.62) 42%, rgba(20, 50, 74, 0.18) 100%);
}

.hero-content {
  width: min(680px, calc(100% - 40px));
  margin-left: clamp(20px, 6vw, 88px);
  color: var(--white);
}

.eyebrow,
.section-label {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(3rem, 8vw, 6.6rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 580px;
  margin: 26px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 800;
}

.button.primary {
  background: var(--gold);
  color: #1f2429;
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.55);
}

.button.outline {
  border: 1px solid var(--line);
  color: var(--navy);
  background: var(--white);
}

.section {
  padding: clamp(62px, 9vw, 112px) clamp(20px, 5vw, 72px);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 78px);
  align-items: start;
}

.section h2,
.contact-panel h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.content-copy p,
.policy-list p,
.standard p,
.category-card p,
.contact-panel p,
.site-footer {
  color: var(--muted);
}

.content-copy p:first-child,
.contact-panel p {
  margin-top: 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 36px;
}

.brand-section {
  background: var(--paper);
}

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

.brand-grid span {
  display: grid;
  min-height: 84px;
  place-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--navy);
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 800;
  text-align: center;
  box-shadow: 0 8px 24px rgba(20, 50, 74, 0.05);
}

.brand-note,
.visual-card p {
  color: var(--muted);
}

.brand-note {
  max-width: 820px;
  margin: 22px 0 0;
  font-size: 0.92rem;
}

.visual-catalog {
  background: var(--white);
}

.visual-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.visual-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(20, 50, 74, 0.06);
}

.visual-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.visual-card div {
  padding: 22px;
}

.visual-card p {
  margin-bottom: 0;
}

.category-grid,
.standards-grid,
.shop-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.category-card,
.standard,
.product-card {
  min-height: 245px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 30px rgba(20, 50, 74, 0.06);
}

.shop-section {
  background: linear-gradient(180deg, #ffffff 0%, #f4f8f8 100%);
}

.shop-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  max-width: none;
}

.product-card {
  display: flex;
  flex-direction: column;
  min-height: 440px;
  overflow: hidden;
  padding: 0;
}

.product-image {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--paper);
}

.product-card .product-tag,
.product-card h3,
.product-card p,
.product-card .product-footer {
  margin-left: 24px;
  margin-right: 24px;
}

.product-tag {
  align-self: flex-start;
  margin-top: 22px;
  margin-bottom: 18px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #e7f4f2;
  color: var(--teal);
  font-size: 0.76rem;
  font-weight: 800;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: auto;
  padding-top: 22px;
  padding-bottom: 24px;
}

.product-footer strong {
  color: var(--navy);
  font-size: 1.18rem;
}

.cart-button {
  min-height: 42px;
  padding: 0 14px;
  border: 0;
  border-radius: 8px;
  background: var(--navy);
  color: var(--white);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.cart-button:hover {
  background: var(--blue);
}

.shop-note {
  max-width: 820px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.card-icon {
  display: inline-grid;
  width: 46px;
  height: 46px;
  margin-bottom: 34px;
  place-items: center;
  border-radius: 8px;
  background: #e9f3fb;
  color: var(--blue);
  font-size: 0.85rem;
  font-weight: 800;
}

h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 1.08rem;
}

p {
  font-size: 1rem;
}

.operations-band {
  background: var(--paper);
}

.standards-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.standard {
  min-height: 215px;
}

.standard h3 {
  padding-top: 14px;
  border-top: 3px solid var(--teal);
}

.policy-list {
  display: grid;
  gap: 22px;
}

.policy-list > div {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.cart-section {
  background: var(--white);
}

.cart-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 0.7fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: start;
}

.cart-box {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.cart-items {
  display: grid;
  gap: 10px;
  min-height: 70px;
}

.empty-cart {
  margin: 0;
  color: var(--muted);
}

.cart-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.cart-item span {
  color: var(--ink);
  font-weight: 700;
}

.cart-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 2px solid var(--navy);
  color: var(--navy);
  font-weight: 800;
}

.checkout-button {
  width: 100%;
  margin-top: 20px;
}

.contact-section {
  padding: clamp(52px, 8vw, 96px) clamp(20px, 5vw, 72px);
  background: var(--navy);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.55fr);
  gap: 34px;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 54px);
  border-radius: 8px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.contact-details {
  display: grid;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font-weight: 800;
}

.contact-details a {
  overflow-wrap: anywhere;
  color: var(--blue);
}

.contact-details span {
  color: var(--muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .main-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    min-height: 620px;
  }

  .two-column,
  .contact-panel,
  .cart-panel {
    grid-template-columns: 1fr;
  }

  .category-grid,
  .standards-grid,
  .shop-grid,
  .brand-grid,
  .visual-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 14px 18px;
  }

  .brand img {
    width: min(220px, 70vw);
  }

  .main-nav {
    gap: 18px;
    font-size: 0.86rem;
  }

  .hero {
    min-height: 590px;
  }

  .hero-content {
    width: calc(100% - 36px);
    margin: 0 18px;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(8, 22, 34, 0.88) 0%, rgba(10, 31, 48, 0.72) 100%);
  }

  .hero-actions,
  .site-footer,
  .shop-heading,
  .product-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }

  .category-grid,
  .standards-grid,
  .shop-grid,
  .brand-grid,
  .visual-grid {
    grid-template-columns: 1fr;
  }

  .category-card,
  .standard {
    min-height: auto;
  }
}