/* DNA Cloning Service – site styles.
   One family (Archivo, variable width + weight); width carries hierarchy:
   wide for headlines, normal for text, semi-condensed for the catalogue. */

:root {
  --ink: #17281D;
  --ink-2: #5C665B;
  --paper: #FFFFFF;
  --bench: #EEF2EB;
  --bench-2: #E2E8DF;
  --rule: #C9CFC4;
  --leaf: #2F7A3E;
  --leaf-deep: #1F5A2C;
  --red: #B8322F;
  --wrap: 1180px;
  --gutter: 24px;
  --font: "Archivo", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { color-scheme: light; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 400 17px/1.55 var(--font);
  font-stretch: 100%;
  color: var(--ink);
  background: var(--paper);
  font-variant-numeric: tabular-nums;
}
a { color: var(--leaf); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--leaf-deep); }
:focus-visible { outline: 2px solid var(--leaf); outline-offset: 2px; border-radius: 2px; }
img, svg { max-width: 100%; }
h1, h2, h3 { margin: 0 0 .5em; font-weight: 600; letter-spacing: -0.015em; line-height: 1.1; text-wrap: balance; }
h1 { font-size: clamp(1.9rem, 1.2rem + 2.4vw, 3rem); font-stretch: 112%; letter-spacing: -0.025em; line-height: 1.02; }
h2 { font-size: 1.45rem; font-stretch: 106%; }
h3 { font-size: 1.1rem; font-stretch: 104%; }
p { margin: 0 0 1em; max-width: 68ch; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }
.narrow { max-width: 820px; }
.muted { color: var(--ink-2); }
.small { font-size: .9rem; }
.lead { font-size: 1.15rem; line-height: 1.5; color: var(--ink-2); max-width: 62ch; }
.count { font-weight: 400; font-stretch: 96%; color: var(--ink-2); font-size: .55em; letter-spacing: 0; vertical-align: .35em; margin-left: .35em; }
.sku { font-family: var(--mono); font-size: .8em; color: var(--ink-2); letter-spacing: .01em; }
.skip { position: absolute; left: -9999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 10; }
.skip:focus { left: 8px; }

/* ---------------------------------------------------------------- header */
.site-head { border-bottom: 1px solid var(--rule); background: var(--paper); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 68px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); text-decoration: none; font-weight: 600; font-stretch: 108%; font-size: 1.05rem; letter-spacing: -0.01em; }
.brand-mark { width: 28px; height: 28px; border-radius: 7px; }
.site-nav { display: flex; gap: 4px 22px; flex-wrap: wrap; align-items: center; }
.site-nav a { color: var(--ink); text-decoration: none; padding: 22px 0 20px; border-bottom: 2px solid transparent; }
.site-nav a:hover { color: var(--leaf-deep); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--leaf); }
.cart-link { display: inline-flex; align-items: center; gap: 6px; }
.cart-count { display: inline-block; min-width: 1.5em; padding: 0 .4em; border-radius: 999px; background: var(--leaf); color: #fff; font-size: .8rem; font-weight: 600; text-align: center; line-height: 1.5em; }
.cart-count[data-empty] { background: var(--bench-2); color: var(--ink-2); }

/* ---------------------------------------------------------------- buttons */
.btn { display: inline-block; padding: 11px 18px; border-radius: 4px; border: 1px solid var(--leaf); background: var(--leaf); color: #fff; font: inherit; font-weight: 500; text-decoration: none; cursor: pointer; line-height: 1.2; }
.btn:hover { background: var(--leaf-deep); border-color: var(--leaf-deep); color: #fff; }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-quiet:hover { background: var(--bench); color: var(--ink); border-color: var(--ink); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.link-btn { background: none; border: 0; padding: 0; font: inherit; color: var(--leaf); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }

/* ---------------------------------------------------------------- home */
.hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 48px; align-items: center; padding-block: 56px 40px; }
.hero-text h1 { margin-bottom: .6em; max-width: 16ch; }
.hero-map { margin: 0; }
.hero-map svg { width: 100%; height: auto; display: block; }
.hero-map figcaption { font-size: .85rem; color: var(--ink-2); margin-top: 8px; max-width: 48ch; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.hero-search { display: flex; gap: 8px; max-width: 560px; margin-bottom: 10px; }
.hero-search input { flex: 1; min-width: 0; font: inherit; padding: 12px 14px; border: 1px solid var(--ink); border-radius: 4px; background: var(--paper); color: var(--ink); }
.hero-search input:focus { outline: none; border-color: var(--leaf); box-shadow: 0 0 0 2px rgba(47,122,62,.25); }
.hero-links { font-size: .95rem; color: var(--ink-2); }
.steps { padding-block: 56px 8px; }
.step-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; counter-reset: none; }
.step-list li { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; font-size: 1rem; }
.step-list strong { display: block; margin-bottom: 4px; }
.step-n { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; border: 1.5px solid var(--leaf); color: var(--leaf); font-weight: 600; font-size: .95rem; margin-top: 1px; }

.catalog-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding-inline: 0; margin-top: 16px; }
.catalog-strip .group { display: grid; grid-template-rows: auto auto 1fr; gap: 2px; padding: 22px 24px 26px; color: var(--ink); text-decoration: none; border-left: 1px solid var(--rule); }
.catalog-strip .group:first-child { border-left: 0; }
.catalog-strip .group:hover { background: var(--bench); }
.group-count { font-size: 2.6rem; font-weight: 600; font-stretch: 112%; letter-spacing: -0.03em; line-height: 1; color: var(--leaf); }
.group-title { font-size: 1.15rem; font-weight: 600; margin-top: 6px; }
.group-lead { font-size: .9rem; color: var(--ink-2); line-height: 1.45; margin-top: 4px; }

.services { padding-block: 56px 24px; }
.services .cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.services h3 { margin-top: .2em; }
.services p { font-size: 1rem; }

.kits { padding-block: 32px 40px; border-top: 1px solid var(--rule); }
.kits-head { display: flex; justify-content: space-between; align-items: baseline; gap: 24px; flex-wrap: wrap; }
.kits-head p { color: var(--ink-2); margin: 0; }
.kit-list { list-style: none; margin: 16px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 32px; }
.kit-list a { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none; }
.kit-list a:hover .kit-name { color: var(--leaf-deep); text-decoration: underline; text-underline-offset: 3px; }
.kit-price { color: var(--ink-2); white-space: nowrap; }
.where { padding-block: 24px 64px; }

/* ---------------------------------------------------------------- page heads, tabs */
.page-head { padding-block: 40px 20px; }
.page-head h1 { margin-bottom: .35em; }
.crumbs { font-size: .9rem; margin-bottom: 8px; }
.crumbs a { color: var(--ink-2); }
.tabs { display: flex; gap: 4px; margin-bottom: 26px; border-bottom: 1px solid var(--rule); overflow-x: auto; overflow-y: hidden; }
.tabs a { padding: 10px 14px; color: var(--ink-2); text-decoration: none; border-bottom: 2px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.tabs a:hover { color: var(--ink); }
.tabs a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--leaf); font-weight: 600; }

/* ---------------------------------------------------------------- catalogue table */
.search { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; align-items: center; margin-bottom: 18px; max-width: 720px; }
.search label { font-weight: 600; }
.search input { font: inherit; padding: 10px 12px; border: 1px solid var(--rule); border-radius: 4px; width: 100%; background: var(--paper); color: var(--ink); }
.search input:focus { border-color: var(--leaf); outline: none; box-shadow: 0 0 0 2px rgba(47,122,62,.25); }
.search .hint { grid-column: 2; font-size: .85rem; color: var(--ink-2); }
.chips { grid-column: 2; display: flex; flex-wrap: wrap; gap: 6px; }
.chips a { display: inline-block; padding: 3px 10px; border-radius: 999px; border: 1px solid var(--rule); color: var(--ink-2); text-decoration: none; font-size: .85rem; line-height: 1.5; }
.chips a:hover { border-color: var(--ink-2); color: var(--ink); }
.chips a[aria-current="true"] { background: var(--leaf); border-color: var(--leaf); color: #fff; }
.chips a.clear { border-color: transparent; color: var(--leaf); text-decoration: underline; text-underline-offset: 3px; }
.head-row { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.head-row h1 { margin-bottom: .35em; }
.count-line { color: var(--ink-2); font-size: 1.05rem; }
.th-sub { display: block; font-weight: 400; color: var(--ink-2); font-size: .8em; }
.catalog td.cas .pro { color: var(--ink-2); }
.catalog td.cas .gene { font-weight: 600; }
.catalog td.grp { white-space: nowrap; }
.catalog td.grp a { color: var(--ink-2); text-decoration: none; }
.catalog td.grp a:hover { color: var(--leaf-deep); text-decoration: underline; }
.table-scroll { overflow-x: auto; margin-bottom: 20px; }
table { border-collapse: collapse; width: 100%; }
.catalog { font-size: .9rem; font-stretch: 88%; }
.catalog th, .catalog td { text-align: left; padding: 8px 8px; vertical-align: top; border-bottom: 1px solid var(--rule); }
.catalog th { font-weight: 600; border-bottom: 2px solid var(--ink); white-space: nowrap; position: sticky; top: 0; background: var(--paper); }
.catalog tbody tr:hover { background: var(--bench); }
.catalog td.pid { font-family: var(--mono); font-size: .85em; color: var(--ink-2); white-space: nowrap; }
.catalog td.name { font-weight: 600; white-space: nowrap; }
.catalog td.name a { color: var(--ink); text-decoration: none; }
.catalog td.name a:hover { color: var(--leaf-deep); text-decoration: underline; }
.catalog td.feat { min-width: 16ch; }
.catalog td.files { min-width: 9.5em; }
.catalog td.files a { display: inline-block; padding: 1px 6px; margin-right: 3px; border-radius: 3px; background: var(--bench); color: var(--ink); text-decoration: none; font-family: var(--mono); font-size: .8em; }
.catalog td.files a:hover { background: var(--bench-2); }
.catalog td.empty { padding: 28px 10px; color: var(--ink-2); text-align: center; }
.num { text-align: right !important; white-space: nowrap; }

/* ---------------------------------------------------------------- vector detail */
.vector-grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(280px, .75fr); gap: 48px; align-items: start; padding-bottom: 32px; }
.vector-map { margin: 0; }
.vector-map svg, .vector-map img { width: 100%; height: auto; display: block; }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 0 0 28px; }
.facts dt { color: var(--ink-2); }
.facts dd { margin: 0; font-weight: 500; }
.downloads { list-style: none; padding: 0; margin: 0 0 28px; }
.downloads li { padding: 8px 0; border-bottom: 1px solid var(--rule); }
.features { padding-bottom: 48px; }
.feat-table td { font-stretch: 94%; }
.swatch { display: inline-block; width: 10px; height: 10px; border-radius: 2px; background: var(--c); margin-right: 8px; vertical-align: 0; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: .9rem; color: var(--ink-2); }

/* ---------------------------------------------------------------- prices */
.glance { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding-inline: 0; margin: 4px auto 36px; }
.glance a { display: grid; gap: 2px; padding: 18px 20px; text-decoration: none; color: var(--ink); border-left: 1px solid var(--rule); }
.glance a:first-child { border-left: 0; }
.glance a:hover { background: var(--bench); }
.glance-price { font-size: 1.6rem; font-weight: 600; font-stretch: 110%; letter-spacing: -0.02em; color: var(--leaf); line-height: 1.1; }
.glance-what { font-size: .92rem; color: var(--ink-2); }
.prices-grid { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 56px; align-items: start; padding-bottom: 64px; }
.price-side { position: sticky; top: 16px; display: grid; gap: 22px; }
.search.compact { grid-template-columns: 1fr; gap: 6px; margin: 0; }
.search.compact .hint { grid-column: 1; }
.toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule); }
.toc a { display: flex; gap: 10px; padding: 6px 0 6px 14px; color: var(--ink-2); text-decoration: none; font-size: .92rem; line-height: 1.35; margin-left: -1px; border-left: 2px solid transparent; }
.toc a:hover { color: var(--ink); border-left-color: var(--leaf); }
.toc-letter { font-weight: 600; text-transform: uppercase; color: var(--ink); min-width: 1.2em; }
.price-section { padding-bottom: 44px; }
.price-section h2 { display: flex; align-items: baseline; gap: 14px; margin-bottom: 10px; scroll-margin-top: 16px; }
.price-section .letter { text-transform: uppercase; color: var(--leaf); font-stretch: 112%; }
.price-section h3 { margin: 26px 0 4px; font-size: .95rem; color: var(--ink-2); font-weight: 600; }
.price-rows { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.price-row { display: grid; grid-template-columns: 5.2em minmax(0, 1fr) minmax(7em, 42%); gap: 4px 16px; align-items: baseline; padding: 11px 0; border-bottom: 1px solid var(--bench-2); }
.price-row:hover { background: linear-gradient(90deg, transparent, var(--bench) 6%, var(--bench) 94%, transparent); }
.price-row .nr { font-family: var(--mono); font-size: .8rem; color: var(--ink-2); padding-top: .15em; white-space: nowrap; }
.price-row .desc { display: block; }
.price-row .detail { display: block; color: var(--ink-2); font-size: .9rem; }
.price-row .price { font-weight: 600; white-space: nowrap; text-align: right; }
.tiers { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px 20px; margin: 0; text-align: right; }
.tiers div { display: grid; gap: 0; }
.tiers dt { font-size: .8rem; color: var(--ink-2); white-space: nowrap; }
.tiers dd { margin: 0; font-weight: 600; white-space: nowrap; }
.notes { padding-left: 1.2em; }
.notes li { margin-bottom: 6px; max-width: 70ch; }

/* ---------------------------------------------------------------- prose (protocols, imprint, product text) */
.prose-grid { display: grid; grid-template-columns: minmax(0, 1fr) 240px; gap: 48px; align-items: start; padding-bottom: 64px; }
.prose { max-width: 72ch; }
.prose p, .prose li { font-size: 1.02rem; }
.prose ol, .prose ul { padding-left: 1.4em; }
.prose li { margin-bottom: .4em; }
.prose h3, .prose h4 { margin-top: 1.6em; }
.prose table { font-size: .92rem; font-stretch: 92%; margin: 1em 0 1.5em; }
.prose td, .prose th { text-align: left; padding: 7px 10px 7px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.prose tr:first-child td strong { font-weight: 600; }
.prose thead th, .prose thead td { border-bottom: 2px solid var(--ink); background: none !important; color: inherit !important; }
.side-nav h2 { font-size: 1rem; color: var(--ink-2); }
.side-nav ul { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--rule); }
.side-nav a { display: block; padding: 6px 0 6px 14px; color: var(--ink-2); text-decoration: none; margin-left: -1px; border-left: 2px solid transparent; }
.side-nav a:hover { color: var(--ink); }
.side-nav a[aria-current="page"] { color: var(--ink); border-left-color: var(--leaf); font-weight: 600; }
.protocol-list { list-style: none; padding: 0; margin: 0 0 64px; max-width: 620px; }
.protocol-list a { display: grid; gap: 4px; padding: 18px 0; border-bottom: 1px solid var(--rule); color: var(--ink); text-decoration: none; }
.protocol-list .pl-title { font-size: 1.2rem; font-weight: 600; }
.protocol-list .pl-lead { color: var(--ink-2); font-size: .95rem; }
.protocol-list a:hover .pl-title { color: var(--leaf-deep); text-decoration: underline; text-underline-offset: 3px; }

/* Product description HTML comes from the old shop; tame its classes. */
.product-desc .prod-desc-heading { display: none; }
.product-desc .prod-txt-box { padding-bottom: 1.2em; margin-bottom: 1.2em; border-bottom: 1px solid var(--rule); }
.product-desc .prod-specs-heading { font-size: 1.05rem; margin: 0 0 .6em; }
.product-desc .prod-specs-list { list-style: disc; }
.product-desc table { width: auto; }
.product-desc thead th, .product-desc thead td { background: none !important; color: inherit !important; }
.product-desc img { display: block; margin: 0 auto 1em; }
.product-desc .img-side-content, .product-desc .side-by-side, .product-desc .half-box { display: block; }

/* ---------------------------------------------------------------- shop */
.products { list-style: none; padding: 0; margin: 0 0 64px; }
.product-row { display: grid; grid-template-columns: minmax(0, 1fr) 200px; gap: 32px; padding: 26px 0; border-bottom: 1px solid var(--rule); align-items: start; }
.product-row h2 { font-size: 1.3rem; margin-bottom: .3em; }
.product-row h2 a { color: var(--ink); text-decoration: none; }
.product-row h2 a:hover { color: var(--leaf-deep); text-decoration: underline; }
.product-row p { font-size: 1rem; }
.product-buy { text-align: right; }
.product-buy .price { font-size: 1.35rem; font-weight: 600; margin-bottom: 10px; }
.product-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 48px; align-items: start; padding-bottom: 64px; }
.buy-box { position: sticky; top: 16px; padding: 22px; background: var(--bench); border-radius: 6px; }
.buy-box fieldset { border: 0; padding: 0; margin: 0 0 16px; }
.buy-box legend { font-weight: 600; margin-bottom: 6px; padding: 0; }
.variant { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--rule); cursor: pointer; }
.variant > span:nth-child(2) { flex: 1; }
.variant input { accent-color: var(--leaf); width: 18px; height: 18px; margin: 0; }
.buy-box .price { font-size: 1.5rem; font-weight: 600; margin-bottom: 14px; }
.qty-label { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; font-weight: 600; }
.qty { font: inherit; width: 5em; padding: 8px 10px; border: 1px solid var(--rule); border-radius: 4px; text-align: right; background: var(--paper); color: var(--ink); }
.buy-box .btn { width: 100%; text-align: center; }
.added { margin: 12px 0 0; padding: 10px 12px; background: var(--paper); border-left: 3px solid var(--leaf); font-size: .95rem; }
.lines td, .lines th { text-align: left; padding: 12px 10px 12px 0; border-bottom: 1px solid var(--rule); vertical-align: middle; }
.lines th { font-weight: 600; border-bottom: 2px solid var(--ink); }
.lines tfoot td { font-weight: 600; border-bottom: 0; padding-top: 16px; }
.lines.compact td { padding: 8px 0; font-size: .95rem; }
.empty { color: var(--ink-2); }

/* ---------------------------------------------------------------- forms */
.checkout-grid, .contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 48px; align-items: start; padding-bottom: 64px; }
.form { max-width: 640px; }
.form h2 { font-size: 1.15rem; margin: 26px 0 12px; }
.form h2:first-child { margin-top: 0; }
.field { margin-bottom: 14px; }
.field label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: 4px; }
.field input, .field textarea { font: inherit; width: 100%; padding: 10px 12px; border: 1px solid var(--rule); border-radius: 4px; background: var(--paper); color: var(--ink); }
.field input:focus, .field textarea:focus { border-color: var(--leaf); outline: none; box-shadow: 0 0 0 2px rgba(47,122,62,.25); }
.field.invalid input, .field.invalid textarea { border-color: var(--red); }
.err { display: block; color: var(--red); font-size: .9rem; margin-top: 4px; }
.help { display: block; color: var(--ink-2); font-size: .85rem; margin-top: 4px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.row .short { max-width: 180px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.summary { padding: 22px; background: var(--bench); border-radius: 6px; position: sticky; top: 16px; }
.summary h2 { font-size: 1.1rem; }
.sent { padding: 14px 16px; border-left: 3px solid var(--leaf); background: var(--bench); font-weight: 500; }
.contact-side p { font-size: 1rem; }

/* ---------------------------------------------------------------- footer */
.site-foot { border-top: 1px solid var(--rule); background: var(--bench); margin-top: 24px; font-size: .95rem; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-block: 40px 20px; }
.foot-grid p { margin-bottom: .8em; }
.foot-grid a { color: var(--ink); }
.foot-name { font-weight: 600; }
.foot-note { padding-bottom: 28px; color: var(--ink-2); font-size: .875rem; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; gap: 24px; padding-block: 36px 24px; }
  .hero-map { max-width: 520px; }
  .catalog-strip { grid-template-columns: 1fr 1fr; }
  .catalog-strip .group:nth-child(3) { border-left: 0; }
  .catalog-strip .group:nth-child(n+3) { border-top: 1px solid var(--rule); }
  .services .cols { grid-template-columns: 1fr; gap: 20px; }
  .kit-list { grid-template-columns: 1fr 1fr; }
  .vector-grid, .prices-grid, .prose-grid, .product-grid, .checkout-grid, .contact-grid { grid-template-columns: 1fr; gap: 28px; }
  .price-side { position: static; }
  .toc ol { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 0 24px; border-left: 0; }
  .toc a { padding-left: 0; border-left: 0; }
  .glance { grid-template-columns: repeat(3, 1fr); }
  .glance a:nth-child(4) { border-left: 0; }
  .glance a:nth-child(n+4) { border-top: 1px solid var(--rule); }
  .step-list { grid-template-columns: 1fr; gap: 18px; }
  .buy-box, .summary { position: static; }
  .buy-box { order: -1; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  :root { --gutter: 16px; }
  body { font-size: 16px; }
  .site-head .wrap { min-height: 0; padding-block: 12px 0; }
  .site-nav { gap: 0 16px; width: 100%; }
  .site-nav a { padding: 8px 0 10px; }
  .catalog-strip { grid-template-columns: 1fr; }
  .hero-map .lbl { display: none; }
  .catalog-strip .group { border-left: 0; border-top: 1px solid var(--rule); padding: 16px 0; }
  .catalog-strip .group:first-child { border-top: 0; }
  .kit-list { grid-template-columns: 1fr; }
  .product-row { grid-template-columns: 1fr; gap: 12px; }
  .product-buy { text-align: left; }
  .row { grid-template-columns: 1fr; }
  .search { grid-template-columns: 1fr; }
  .search .hint, .chips { grid-column: 1; }
  .glance { grid-template-columns: 1fr 1fr; }
  .glance a { border-left: 0; border-top: 1px solid var(--rule); }
  .glance a:nth-child(-n+2) { border-top: 0; }
  .price-row { grid-template-columns: 1fr auto; }
  .price-row .nr { grid-column: 1 / -1; padding: 0; }
  .tiers { grid-column: 1 / -1; justify-content: start; text-align: left; }
  .hero-search { flex-direction: column; }
  .foot-grid { grid-template-columns: 1fr; gap: 12px; }
}
@media (prefers-reduced-motion: no-preference) {
  .catalog-strip .group, .btn, .site-nav a { transition: background-color .15s, color .15s, border-color .15s; }
}