:root {
  --green: #087c43;
  --green-dark: #056036;
  --ink: #202426;
  --muted: #687076;
  --line: #dfe4e1;
  --surface: #f4f7f5;
  --white: #ffffff;
  --radius: 18px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--white); }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { color: inherit; }
img { display: block; max-width: 100%; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  min-height: 84px;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: 16px clamp(24px, 5vw, 76px);
  border-bottom: 1px solid rgba(223, 228, 225, .86);
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 14px; min-width: 0; }
.brand img { width: 128px; height: auto; }
.brand-divider { width: 1px; height: 27px; background: var(--line); }
.brand-section { color: var(--muted); font-size: 14px; letter-spacing: .14em; text-transform: uppercase; }
.site-header nav { display: flex; align-items: center; gap: 30px; font-size: 13px; font-weight: 550; }
.site-header nav a { transition: color .2s; }
.site-header nav a:hover { color: var(--green); }
.site-link { padding: 10px 16px; border: 1px solid var(--line); border-radius: 999px; }
.mobile-menu { display: none; border: 0; background: transparent; padding: 8px; }
.mobile-menu span { display: block; width: 23px; height: 1px; margin: 6px 0; background: var(--ink); }

.catalog-hero {
  padding: 88px clamp(24px, 7vw, 110px) 80px;
  background:
    radial-gradient(circle at 86% 20%, rgba(8, 124, 67, .1), transparent 30%),
    linear-gradient(180deg, #f7faf8 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}
.eyebrow { margin: 0; color: var(--green); font-size: 11px; font-weight: 650; letter-spacing: .25em; text-transform: uppercase; }
.catalog-hero h1 { max-width: 880px; margin: 18px 0 0; font-size: clamp(42px, 6vw, 76px); line-height: 1.03; letter-spacing: -.045em; font-weight: 620; }
.catalog-hero h1 span { color: #8b9390; }
.hero-copy { max-width: 690px; margin: 28px 0 0; color: var(--muted); font-size: 17px; line-height: 1.75; }
.search-wrap { position: relative; max-width: 720px; margin-top: 42px; }
.search-wrap svg { position: absolute; top: 50%; left: 21px; width: 19px; transform: translateY(-50%); color: var(--muted); }
.search-wrap input { width: 100%; height: 60px; padding: 0 22px 0 56px; border: 1px solid var(--line); border-radius: 999px; outline: 0; background: var(--white); box-shadow: 0 12px 34px rgba(23, 46, 35, .07); font-size: 15px; }
.search-wrap input:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(8, 124, 67, .1); }

.category-hero { padding-block: 64px 58px; }
.category-hero h1 { font-size: clamp(38px, 5vw, 62px); }
.category-hero .search-wrap { margin-top: 30px; }
.category-section, .category-results { padding: 64px clamp(24px, 7vw, 110px) 100px; }
.category-section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 26px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.category-section-head h2 { margin: 8px 0 0; font-size: clamp(25px, 3vw, 34px); font-weight: 610; letter-spacing: -.025em; }
.category-section-head > p { margin: 0; color: var(--muted); font-size: 12px; }
.category-grid, .subcategory-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.category-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); transition: transform .25s, box-shadow .25s, border-color .25s; }
.category-card:hover { transform: translateY(-4px); border-color: #cbd4cf; box-shadow: 0 18px 45px rgba(20, 48, 34, .09); }
.category-visual { display: grid; height: 150px; min-height: 0; place-items: center; overflow: hidden; padding: 18px; border-bottom: 1px solid var(--line); background: var(--surface); }
.category-visual img { width: 100%; height: 100%; min-width: 0; min-height: 0; max-height: 100%; object-fit: contain; }
.category-placeholder { display: grid; width: 64px; height: 64px; place-items: center; border: 1px solid #cdd5d1; border-radius: 50%; color: var(--green); font-size: 24px; }
.category-body { padding: 18px; }
.category-body > p { margin: 0; color: var(--green); font-size: 10px; font-weight: 650; letter-spacing: .14em; text-transform: uppercase; }
.category-body h2 { margin: 9px 0 18px; font-size: 19px; line-height: 1.2; letter-spacing: -.02em; }
.category-body > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.category-body strong { color: var(--ink); font-weight: 650; }
.category-card:hover .category-body strong { color: var(--green); }
.subcategory-block + .category-products { margin-top: 64px; }
.category-products .empty-state { margin-top: 28px; }

.catalog-shell { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: clamp(36px, 5vw, 76px); padding: 70px clamp(24px, 7vw, 110px) 110px; }
.filters { align-self: start; position: sticky; top: 112px; }
.filter-block + .filter-block { margin-top: 38px; }
.filter-label { margin: 0 0 15px; color: var(--muted); font-size: 10px; font-weight: 650; letter-spacing: .22em; text-transform: uppercase; }
.filter-list { display: grid; gap: 4px; }
.filter-button { width: 100%; padding: 9px 0; border: 0; background: transparent; text-align: left; cursor: pointer; color: var(--muted); font-size: 14px; transition: color .2s; }
.filter-button:hover, .filter-button.active { color: var(--green); }
.filter-button.active { font-weight: 650; }
.reset-filters { margin-top: 30px; padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--white); cursor: pointer; font-size: 12px; }

.catalog-content { min-width: 0; }
.results-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.results-head h2 { margin: 8px 0 0; font-size: clamp(25px, 3vw, 34px); font-weight: 610; letter-spacing: -.025em; }
.result-count { flex: none; color: var(--muted); font-size: 12px; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; margin-top: 28px; }
.product-card { display: flex; min-height: 350px; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); transition: transform .25s, box-shadow .25s, border-color .25s; }
.product-card:hover { transform: translateY(-4px); border-color: #cbd4cf; box-shadow: 0 18px 45px rgba(20, 48, 34, .09); }
.product-image { display: grid; aspect-ratio: 4 / 3; place-items: center; padding: 24px; border-bottom: 1px solid var(--line); background: var(--surface); }
.product-image img { width: 100%; height: 100%; object-fit: contain; }
.image-placeholder { display: grid; width: 76px; height: 76px; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: #9aa39f; font-size: 28px; }
.product-body { display: flex; flex: 1; flex-direction: column; padding: 23px; }
.product-meta { display: flex; justify-content: space-between; gap: 12px; color: var(--green); font-size: 10px; font-weight: 650; letter-spacing: .14em; text-transform: uppercase; }
.product-body h3 { margin: 18px 0 0; font-size: 20px; line-height: 1.25; letter-spacing: -.02em; }
.model { margin: 7px 0 0; color: var(--muted); font-size: 12px; }
.excerpt { margin: 16px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.card-link { margin-top: auto; padding-top: 24px; color: var(--ink); font-size: 13px; font-weight: 650; }
.product-card:hover .card-link { color: var(--green); }

.empty-state, .error-state { margin-top: 28px; padding: 66px 30px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-align: center; }
.empty-icon { display: grid; width: 62px; height: 62px; margin: auto; place-items: center; border-radius: 50%; background: var(--white); color: var(--green); font-size: 24px; }
.empty-state h3, .error-state h3 { margin: 22px 0 0; font-size: 24px; }
.empty-state p, .error-state p { max-width: 520px; margin: 12px auto 0; color: var(--muted); line-height: 1.65; }
.primary-button { display: inline-flex; align-items: center; justify-content: center; margin-top: 25px; padding: 12px 20px; border-radius: 999px; background: var(--green); color: var(--white); font-size: 13px; font-weight: 650; }
.primary-button:hover { background: var(--green-dark); }

.breadcrumb { padding: 28px clamp(24px, 7vw, 110px); border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.breadcrumb a:hover { color: var(--green); }
.product-page { padding: 58px clamp(24px, 7vw, 110px) 110px; scroll-margin-top: 90px; }
.product-top { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr); gap: clamp(40px, 7vw, 100px); align-items: start; }
.product-main-image { position: relative; display: grid; min-height: 440px; place-items: center; padding: 18px 52px; border-radius: 20px; background: #e9ebe9; }
.product-stage { display: grid; width: 100%; min-height: 400px; place-items: center; padding: 32px; overflow: hidden; border-radius: 18px; background: var(--white); }
.product-main-image img { width: 100%; height: 330px; object-fit: contain; }
.gallery-arrow { position: absolute; top: 50%; z-index: 2; display: grid; width: 43px; height: 43px; place-items: center; padding: 0 0 4px; transform: translateY(-50%); border: 1px solid #9ca39f; border-radius: 50%; background: rgba(255, 255, 255, .96); cursor: pointer; font-size: 34px; font-weight: 300; line-height: 1; transition: border-color .2s, color .2s, transform .2s; }
.gallery-arrow:hover { color: var(--green); border-color: var(--green); transform: translateY(-50%) scale(1.04); }
.gallery-arrow-prev { left: 10px; }
.gallery-arrow-next { right: 10px; }
.product-gallery { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; margin-top: 12px; padding: 0 1px; }
.gallery-thumb { height: 78px; overflow: hidden; padding: 7px; border: 1px solid var(--line); border-radius: 0; background: var(--white); cursor: pointer; }
.gallery-thumb.active { border-color: var(--green); box-shadow: 0 0 0 1px var(--green); }
.gallery-thumb img { width: 100%; height: 100%; object-fit: contain; }
.product-info .brand-name { margin: 0; color: var(--green); font-size: 11px; font-weight: 650; letter-spacing: .2em; text-transform: uppercase; }
.product-info h1 { margin: 18px 0 0; font-size: clamp(38px, 5vw, 60px); line-height: 1.04; letter-spacing: -.04em; }
.product-code { margin: 15px 0 0; color: var(--muted); font-size: 13px; }
.product-lead { margin: 28px 0 0; color: var(--muted); font-size: 16px; line-height: 1.75; }
.availability { display: inline-flex; align-items: center; gap: 8px; margin-top: 24px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; }
.availability::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--green); }
.product-applications { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; margin-top: 22px; font-size: 12px; }
.product-applications > span { flex: none; color: var(--muted); font-weight: 600; }
.application-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.application-tags span { display: inline-flex; align-items: center; min-height: 28px; padding: 5px 10px; border: 1px solid #d5e6dc; border-radius: 999px; background: #f2f8f4; color: var(--green-dark); font-size: 11px; font-weight: 560; }
.hero-characteristics { margin: 30px 0 0; border-top: 1px solid var(--line); }
.hero-characteristics > div { display: grid; grid-template-columns: minmax(105px, .42fr) minmax(0, 1fr); gap: 20px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.hero-characteristics dt { color: var(--muted); font-size: 11px; line-height: 1.5; }
.hero-characteristics dd { margin: 0; font-size: 12px; font-weight: 540; line-height: 1.55; }
.product-subnav { position: sticky; top: 84px; z-index: 15; display: flex; min-height: 62px; align-items: center; gap: 30px; padding: 0 clamp(24px, 7vw, 110px); border-block: 1px solid var(--line); background: rgba(255, 255, 255, .96); backdrop-filter: blur(14px); font-size: 12px; font-weight: 600; }
.product-subnav a { display: inline-flex; height: 62px; align-items: center; border-bottom: 2px solid transparent; }
.product-subnav a:hover { color: var(--green); border-bottom-color: var(--green); }
.product-subnav .subnav-cta { height: auto; margin-left: auto; padding: 10px 17px; border: 0; border-radius: 999px; background: var(--green); color: var(--white); }
.product-subnav .subnav-cta:hover { border: 0; background: var(--green-dark); color: var(--white); }
.product-story { overflow: hidden; }
.story-section { padding: 48px clamp(24px, 7vw, 110px); scroll-margin-top: 145px; }
.story-section + .story-section { border-top: 1px solid var(--line); }
.story-heading { max-width: 720px; }
.story-heading h2 { margin: 0; font-size: clamp(26px, 3vw, 36px); line-height: 1.15; letter-spacing: -.025em; font-weight: 610; }
.story-heading > p:not(.eyebrow) { margin: 22px 0 0; color: var(--muted); line-height: 1.7; }
.story-copy { max-width: 950px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.story-copy p { margin: 0; }
.story-copy p + p, .story-copy div + div { margin-top: 13px; }
.story-intro { display: block; }
.story-intro .story-copy { max-width: 950px; margin-top: 20px; }
.story-muted { background: var(--surface); }
.feature-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin: 28px 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.feature-columns li { min-height: 120px; padding: 22px 30px 22px 0; border-bottom: 1px solid var(--line); }
.feature-columns li:not(:nth-child(3n + 1)) { padding-left: 38px; border-left: 1px solid var(--line); }
.feature-columns span { display: grid; width: 30px; height: 30px; place-items: center; border-radius: 50%; background: var(--green); color: var(--white); font-size: 12px; }
.feature-columns p { margin: 20px 0 0; font-size: 16px; line-height: 1.65; }
.story-split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(50px, 9vw, 150px); align-items: start; }
.specification-list { display: grid; gap: 28px; margin-top: 24px; }
.specification-group { margin: 0; }
.specification-group h3 { margin: 0; padding: 0 0 10px; border-bottom: 2px solid var(--ink); font-size: 16px; font-weight: 630; }
.specification-table { display: grid; }
.specification-row { display: grid; grid-template-columns: minmax(180px, .7fr) minmax(300px, 1.3fr); gap: 28px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.specification-row > span { color: var(--muted); }
.specification-row strong { font-weight: 560; line-height: 1.5; }
.story-dark { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(50px, 9vw, 150px); background: var(--ink); color: var(--white); }
.story-dark .eyebrow { color: #75d5a5; }
.resource-list { display: grid; align-content: start; border-top: 1px solid rgba(255, 255, 255, .24); }
.resource-list a { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 22px 0; border-bottom: 1px solid rgba(255, 255, 255, .24); }
.resource-list a:hover { color: #75d5a5; }
.resource-list span { display: grid; gap: 6px; font-size: 15px; }
.resource-list small { color: rgba(255, 255, 255, .55); font-size: 9px; letter-spacing: .16em; text-transform: uppercase; }
.resource-list strong { font-size: 12px; font-weight: 600; }

.loading-page { display: grid; min-height: 64vh; place-items: center; align-content: center; gap: 15px; color: var(--muted); }
.spinner { width: 28px; height: 28px; border: 2px solid var(--line); border-top-color: var(--green); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.site-footer { padding: 24px clamp(24px, 7vw, 110px); border-top: 1px solid var(--line); background: var(--surface); }
.site-footer p { margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.75; }
.footer-company { text-align: center; }
.footer-company p + p { margin-top: 2px; }
.footer-company strong { color: var(--green); font-weight: 650; }
.footer-company .sep { margin-inline: 8px; color: #a4aaa7; }
.footer-company a:hover { color: var(--green); }

@media (max-width: 1050px) {
  .category-grid, .subcategory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .site-header { min-height: 72px; padding: 13px 20px; }
  .brand img { width: 108px; }
  .brand-section { font-size: 11px; }
  .site-header nav { display: none; position: absolute; inset: 72px 0 auto; padding: 24px; flex-direction: column; align-items: flex-start; background: var(--white); border-bottom: 1px solid var(--line); }
  .site-header nav.open { display: flex; }
  .mobile-menu { display: block; }
  .catalog-hero { padding: 60px 22px 55px; }
  .category-section, .category-results { padding: 45px 22px 75px; }
  .category-section-head { align-items: start; }
  .category-grid, .subcategory-grid { grid-template-columns: 1fr; }
  .category-visual { height: 170px; }
  .catalog-shell { grid-template-columns: 1fr; padding: 45px 22px 80px; }
  .filters { position: static; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .filter-block + .filter-block { margin-top: 0; }
  .reset-filters { align-self: end; justify-self: start; margin: 0; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card { min-height: 340px; }
  .breadcrumb { padding: 22px; }
  .product-page { padding: 38px 22px 80px; }
  .product-top { grid-template-columns: 1fr; }
  .product-main-image { min-height: 350px; padding: 14px 38px; }
  .product-stage { min-height: 320px; padding: 22px; }
  .product-main-image img { height: 270px; }
  .gallery-arrow { width: 38px; height: 38px; font-size: 30px; }
  .gallery-arrow-prev { left: 4px; }
  .gallery-arrow-next { right: 4px; }
  .product-gallery { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .product-subnav { top: 72px; gap: 20px; overflow-x: auto; padding: 0 22px; white-space: nowrap; }
  .product-subnav .subnav-cta { display: none; }
  .story-section { padding: 38px 22px; }
  .story-split, .story-dark { grid-template-columns: 1fr; gap: 36px; }
  .hero-characteristics > div { grid-template-columns: 1fr; gap: 5px; }
  .feature-columns { grid-template-columns: 1fr; }
  .feature-columns li, .feature-columns li:not(:nth-child(3n + 1)) { min-height: 0; padding: 25px 0; border-left: 0; }
  .specification-row { grid-template-columns: 1fr; gap: 8px; }
  .site-footer { padding: 25px 22px; }
}