@import url("https://fonts.googleapis.com/css2?family=Vazirmatn:wght@400;500;600;700;800&display=swap");

/* Shared site chrome stays visible while a visitor recovers from a missing URL. */
.not-found-page {
  display: grid;
  align-items: center;
  width: min(1180px, calc(100% - 32px));
  min-height: calc(100svh - 176px);
  margin: 0 auto;
  padding: clamp(40px, 7vw, 88px) 0;
}

.not-found-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(24px, 5vw, 72px);
}

.not-found-content { min-width: 0; }

.not-found-status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 20px;
  padding: 5px 13px;
  border: 1px solid #cde8df;
  border-radius: 999px;
  color: #087354;
  background: #eff9f5;
  font-size: 13px;
  font-weight: 700;
}

.not-found-status span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.not-found-content h1 {
  margin: 0;
  color: var(--dark);
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.55;
}

.not-found-description {
  max-width: 480px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 2;
}

.not-found-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.not-found-actions .primary-button { gap: 18px; }

.not-found-help {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.not-found-help a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--blue);
  font-weight: 700;
}

.not-found-page a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

.not-found-visual { width: 100%; max-width: 520px; justify-self: center; }
.not-found-visual svg { display: block; width: 100%; height: auto; }

@media (max-width: 760px) {
  .not-found-page { min-height: auto; padding: 24px 0 48px; }
  .not-found-layout { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .not-found-visual { grid-row: 1; max-width: 340px; }
  .not-found-content { text-align: center; }
  .not-found-description { margin-inline: auto; }
  .not-found-actions { justify-content: center; }
}

@media (max-width: 400px) {
  .not-found-actions { flex-direction: column; }
  .not-found-content h1 { font-size: 27px; }
  .not-found-help a { margin-top: 4px; }
}

:root {
  --ink: #17212b;
  --muted: #5d6b78;
  --line: #dce4ea;
  --bg: #ffffff;
  --panel: #ffffff;
  --blue: #0d6ea8;
  --green: #11a87b;
  --dark: #102332;
  --shadow: 0 18px 50px rgba(23, 33, 43, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Vazirmatn", Tahoma, Arial, sans-serif;
  line-height: 1.8;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.header-shell {
  display: grid;
  grid-template-columns: 220px 1fr 220px;
  align-items: center;
  width: min(1180px, calc(100% - 32px));
  min-height: 78px;
  margin: 0 auto;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  display: block;
  flex: 0 0 auto;
  width: 52px;
  height: 48px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
  white-space: nowrap;
}

.brand strong {
  font-size: 15px;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 0;
}

.main-nav a,
.nav-dropdown-toggle {
  padding: 10px 12px;
  color: #273746;
  background: transparent;
  border: 0;
  border-radius: 8px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
}

.main-nav a:hover,
.nav-dropdown-toggle:hover {
  color: var(--blue);
  background: #edf6fb;
}

.nav-dropdown {
  position: static;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.nav-dropdown-toggle::after {
  width: 7px;
  height: 7px;
  margin-top: -4px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.nav-dropdown.is-open .nav-dropdown-toggle::after {
  margin-top: 4px;
  transform: rotate(225deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 50%;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  width: min(960px, calc(100vw - 32px));
  padding: 14px 10px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translate(50%, 8px);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
}

.dropdown-menu::before {
  position: absolute;
  top: -10px;
  right: 0;
  left: 0;
  height: 10px;
  content: "";
}

.dropdown-group {
  display: grid;
  align-content: start;
  gap: 1px;
  min-width: 0;
  padding: 0 10px;
  border-left: 1px solid var(--line);
}

.dropdown-group:last-child {
  border-left: 0;
}

.dropdown-group strong {
  display: block;
  padding: 5px 8px 7px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.dropdown-category-link {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 5px 8px 7px !important;
  color: var(--blue) !important;
  font-size: 13px !important;
  font-weight: 900;
  border-bottom: 1px solid #edf1f4;
}

.dropdown-category-link span {
  transition: transform .18s ease;
}

.dropdown-category-link:hover span {
  transform: translateX(-3px);
}

.section.category-products-section {
  margin: 20px auto 84px;
  padding-top: 0;
}

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

.category-empty-state {
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  justify-items: start;
  padding: 28px;
  border: 1px dashed var(--line);
  border-radius: 8px;
}

.section.copper-brands-section {
  padding-block: 30px;
}

.copper-brand-album {
  position: relative;
  --visible-brands: 4;
  --brand-gap: 16px;
}

.copper-brand-viewport {
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  direction: rtl;
}

.copper-brand-viewport::-webkit-scrollbar { display: none; }

.copper-brand-grid {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - (var(--brand-gap) * (var(--visible-brands) - 1))) / var(--visible-brands));
  gap: var(--brand-gap);
}

.copper-brand-card {
  display: grid;
  min-width: 0;
  gap: 10px;
  padding: 20px 18px;
  scroll-snap-align: start;
  text-align: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.copper-brand-card:hover,
.copper-brand-card:focus-visible,
.copper-brand-card.is-current {
  border-color: #bc7849;
  box-shadow: 0 8px 24px rgba(122, 73, 38, .1);
}

.copper-brand-mark {
  display: grid;
  place-items: center;
  height: 112px;
  overflow: hidden;
  color: #343b42;
  font-size: 28px;
  font-weight: 800;
}

.copper-brand-mark img {
  --logo-scale: 1;
  width: auto;
  max-width: calc(100% / var(--logo-scale));
  height: auto;
  max-height: 104px;
  object-fit: contain;
  filter: grayscale(1) brightness(.6) contrast(5);
  opacity: .8;
  transform: scale(var(--logo-scale));
  transition: filter 240ms ease, opacity 240ms ease;
}

.copper-brand-card:hover .copper-brand-mark img,
.copper-brand-card:focus-visible .copper-brand-mark img {
  filter: none;
  opacity: 1;
}

/* Compensate for the white margins in these supplied originals, without changing the files. */
.copper-brand-mark img[src$="/mehr-asl-original.jpg"] { --logo-scale: 1.8; }
.copper-brand-mark img[src$="/qaem-original.jpg"] { --logo-scale: 1.65; }
.copper-brand-mark img[src$="/bahonar-original.png"] { --logo-scale: 1.3; }
.copper-brand-prev { right: -23px; }
.copper-brand-next { left: -23px; }
.copper-brand-album .product-album-arrow span {
  direction: ltr;
  unicode-bidi: isolate;
}
.copper-brand-album button[hidden] { display: none; }

.copper-brand-name { font-size: 15px; font-weight: 700; }
.copper-brand-link { color: var(--blue); font-size: 13px; font-weight: 700; }
.copper-brands-section.is-compact .copper-brand-card { padding-block: 16px; gap: 8px; }
.copper-brands-section.is-compact .copper-brand-mark { font-size: 24px; }

.section.copper-brand-hero {
  margin-top: 24px;
  padding: 32px;
  background: linear-gradient(115deg, #f8f2ec, #f3f8fc);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.copper-brand-hero-head { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.copper-brand-hero-head > div { max-width: 820px; }
.copper-brand-hero h1 { margin: 12px 0; font-size: clamp(30px, 4vw, 48px); }
.copper-brand-hero .primary-button { margin-top: 16px; }
.copper-brand-hero-logo { width: auto; max-width: 180px; max-height: 120px; object-fit: contain; }
.section.copper-brand-intro { margin-top: 32px; }
.copper-brand-inquiry { grid-column: 1 / -1; }
.product-brand-links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.product-brand-links a { padding: 6px 16px; border: 1px solid #dce4ea; border-radius: 24px; background: #fff; color: var(--blue); font-size: 14px; font-weight: 700; }

@media (max-width: 980px) {
  .copper-brand-album { --visible-brands: 3; }
}
@media (max-width: 640px) {
  .copper-brand-album { --visible-brands: 2; --brand-gap: 12px; }
  .copper-brand-prev { right: -8px; }
  .copper-brand-next { left: -8px; }
  .section.copper-brand-hero { padding: 22px 18px; }
  .copper-brand-hero-head { flex-direction: column-reverse; align-items: start; gap: 16px; }
}
@media (max-width: 360px) {
  .copper-brand-album { --visible-brands: 1; }
  .copper-brand-mark { font-size: 24px; }
}

@media (hover: none) {
  .copper-brand-mark img { filter: none; opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .copper-brand-mark img { transition: none; }
}

.dropdown-empty {
  display: block;
  padding: 7px 0;
  color: #7a8791;
  font-size: .82rem;
}

.dropdown-menu a {
  padding: 6px 8px;
  color: var(--ink);
  border-radius: 8px;
  font-size: 13px;
}

.nav-dropdown.is-open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translate(50%, 0);
}

.header-actions {
  display: flex;
  justify-content: end;
  align-items: center;
  gap: 10px;
}

.call-button,
.primary-button,
.secondary-button,
.contact-form button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  font: inherit;
  font-weight: 700;
}

.call-button,
.primary-button,
.contact-form button {
  color: #ffffff;
  background: var(--blue);
  border: 0;
}

.secondary-button {
  color: var(--dark);
  background: #ffffff;
  border: 1px solid var(--line);
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.menu-button span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.hero {
  position: relative;
  display: grid;
  align-items: end;
  min-height: 680px;
  overflow: hidden;
  color: #ffffff;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(90deg, rgba(5, 19, 31, 0.4), rgba(5, 19, 31, 0.86));
}

.hero-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1200ms ease;
}

.hero-media img.is-active {
  opacity: 1;
}

.hero-content {
  position: relative;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 120px 0 86px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(34px, 6vw, 68px);
  line-height: 1.2;
  letter-spacing: 0;
}

.hero-text {
  max-width: 660px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 18px;
}

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

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: min(1180px, calc(100% - 32px));
  margin: -42px auto 0;
  position: relative;
  z-index: 2;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metrics div {
  padding: 24px;
  border-left: 1px solid var(--line);
}

.metrics div:last-child {
  border-left: 0;
}

.metrics strong,
.metrics span {
  display: block;
}

.metrics strong {
  color: var(--blue);
  font-size: 28px;
  line-height: 1.2;
}

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

.home-desk-visual {
  display: grid;
  align-items: center;
  width: min(1180px, calc(100% - 32px));
  min-height: 360px;
  margin: 62px auto 40px;
  padding: 46px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.76) 48%, #ffffff 100%),
    url("/assets/images/generated/desk.png") left center / cover fixed;
  border-top: 1px solid #edf1f4;
  border-bottom: 1px solid #edf1f4;
}

.home-desk-visual div {
  width: min(520px, 100%);
  margin-right: auto;
}

.home-desk-visual h2 {
  margin: 0;
  font-size: clamp(26px, 4vw, 44px);
  line-height: 1.35;
}

.home-desk-visual p:last-child {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 2;
}

.copper-prices {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 18px;
  align-items: stretch;
  width: min(1180px, calc(100% - 32px));
  margin: 48px auto 84px;
}

.copper-heading,
.price-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.copper-heading {
  padding: 20px;
}

.copper-heading h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.35;
}

.copper-heading p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.copper-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: stretch;
  grid-auto-rows: 1fr;
}

.price-card {
  display: grid;
  align-content: start;
  height: 100%;
  min-height: 168px;
  padding: 20px;
}

.price-label {
  color: var(--muted);
  font-weight: 700;
}

.price-card strong {
  margin: 10px 0 6px;
  color: var(--blue);
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.2;
}

.price-change {
  min-height: 28px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 800;
}

.price-change.is-up {
  color: #087848;
}

.price-change.is-down {
  color: #b42318;
}

.price-change.is-flat {
  color: var(--muted);
}
.price-card.is-stale { border-color: #d8bb7b; }

.price-card small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.about-page h1 { margin: 12px 0 20px; font-size: clamp(30px, 4vw, 46px); line-height: 1.5; }
.about-page h2 { margin: 0; font-size: clamp(23px, 2.5vw, 30px); line-height: 1.6; }
.about-page .about-hero { display: grid; grid-template-columns: 1.4fr .8fr; gap: 64px; align-items: center; margin-top: 48px; }
.about-hero .breadcrumb { margin-bottom: 30px; }
.about-intro { color: var(--muted); font-size: 18px; line-height: 2.1; }
.about-brand-panel { display: grid; justify-items: center; gap: 16px; padding: 42px 24px; border: 1px solid #d8e8f2; border-radius: 16px; background: linear-gradient(145deg, #eef7fc, #fff); text-align: center; }
.about-brand-panel img { width: 140px; height: auto; margin-bottom: 8px; }
.about-brand-panel strong { font-size: 24px; }
.about-brand-panel span { color: var(--muted); font-size: 14px; }
.about-origin-brand { display: grid; justify-items: center; gap: 8px; width: 180px; max-width: 100%; margin: 24px 0 0; padding: 12px 16px; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.about-origin-brand img { width: 132px; height: 132px; object-fit: contain; }
.about-origin-brand figcaption { color: var(--muted); font-size: 13px; }
.about-import-brand { display: grid; grid-template-columns: 1.4fr .8fr; align-items: center; gap: 48px; padding: 32px; border: 1px solid #c9e1e9; border-radius: 14px; background: #f3f9fb; }
.about-import-copy .about-prose { margin-top: 18px; }
.about-jesko-brand { display: grid; justify-items: center; gap: 18px; margin: 0; padding: 28px 16px; background: #fff; border: 1px solid var(--line); border-radius: 10px; min-width: 0; }
.about-jesko-logo { position: relative; width: min(100%, 320px); aspect-ratio: 3 / 1; overflow: hidden; }
.about-jesko-logo img { position: absolute; width: 170%; max-width: none; height: auto; top: 50%; left: 50%; transform: translate(-50%, -47.5%); }
.about-jesko-brand figcaption { color: var(--muted); font-size: 14px; }
.about-overview, .about-ordering { display: grid; grid-template-columns: .8fr 1.4fr; gap: 64px; padding-top: 40px; border-top: 1px solid var(--line); }
.about-prose { color: var(--muted); line-height: 2.1; }
.about-prose p { margin: 0 0 18px; }
.about-prose p:last-child { margin-bottom: 0; }
.about-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
.about-detail-card { padding: 30px; border: 1px solid var(--line); border-radius: 12px; background: #f8fafb; }
.about-detail-card ul { display: grid; gap: 16px; margin: 24px 0 0; padding-right: 20px; color: var(--muted); line-height: 2; }
.about-detail-card li::marker { color: var(--blue); }
.about-text-link { display: inline-block; margin-top: 18px; color: var(--blue); font-weight: 600; }
.about-primary-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 44px; padding: 10px 18px; margin-top: 18px; border-radius: 6px; background: var(--blue); color: #fff; font-weight: 600; }
.about-primary-link:hover { background: #095782; }
.about-primary-link:focus-visible, .about-text-link:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }
@media (max-width: 900px) {
  .about-page .about-hero { gap: 28px; grid-template-columns: 1.3fr .8fr; }
  .about-overview, .about-ordering { gap: 28px; grid-template-columns: 1fr; }
  .about-detail-grid { grid-template-columns: 1fr; }
  .about-import-brand { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 600px) {
  .about-page .about-hero { grid-template-columns: 1fr; margin-top: 28px; }
  .about-brand-panel { padding: 24px; }
  .about-brand-panel img { width: 90px; }
  .about-brand-panel strong { font-size: 21px; }
  .about-detail-card { padding: 22px; }
  .about-intro { font-size: 16px; }
  .about-import-brand { padding: 22px; }
}

.section,
.split-section,
.seo-panel,
.contact-section {
  width: min(1180px, calc(100% - 32px));
  margin: 84px auto;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: end;
  gap: 36px;
  margin-bottom: 28px;
}

.section-heading h2,
.split-content h2,
.seo-panel h2,
.about h2,
.contact-section h2 {
  margin: 0;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.35;
}

.section-heading p,
.split-content p,
.seo-panel p,
.about p,
.contact-section p {
  margin: 0;
  color: var(--muted);
}

.trade-services {
  position: relative;
  width: 100%;
  margin: 92px 0;
  padding: 66px 0 74px;
  background:
    linear-gradient(90deg, rgba(6, 19, 29, 0.12), rgba(6, 19, 29, 0.5) 46%, rgba(6, 19, 29, 0.72)),
    url("/assets/images/generated/welding-background.png") left center / cover no-repeat;
  border-top: 1px solid #e6edf1;
  border-bottom: 1px solid #e6edf1;
}

.trade-services .section-heading,
.trade-services .service-grid {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin-right: auto;
  margin-left: auto;
}

.trade-services .section-heading {
  display: block;
  max-width: 760px;
  margin-bottom: 30px;
  text-align: right;
}

.trade-services .section-heading .eyebrow,
.trade-services .section-heading h2,
.trade-services .section-heading p {
  margin-right: 0;
  margin-left: 0;
  color: #ffffff;
}

.trade-services .section-heading .eyebrow,
.trade-services .section-heading h2 {
  margin-bottom: 12px;
}

.trade-services .section-heading .eyebrow {
  color: #8be6cb;
}

.trade-services .section-heading p {
  color: rgba(255, 255, 255, 0.84);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.service-card {
  position: relative;
  display: grid;
  align-content: start;
  min-height: 250px;
  padding: 22px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.48), rgba(255, 255, 255, 0.28)),
    rgba(255, 255, 255, 0.32);
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(1px) saturate(1.18);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.service-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 4px;
  content: "";
  background: linear-gradient(90deg, var(--green), var(--blue));
  transition: height 180ms ease, filter 180ms ease;
}

.service-card:hover {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.38)),
    rgba(255, 255, 255, 0.42);
  border-color: rgba(139, 230, 203, 0.95);
  box-shadow: 0 30px 78px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.62);
  backdrop-filter: blur(3px) saturate(1.35);
  transform: translateY(-7px);
}

.service-card:hover::before {
  height: 8px;
  filter: saturate(1.35);
}

.service-card h3 {
  position: relative;
  z-index: 1;
  margin: 12px 0 10px;
  font-size: 21px;
  line-height: 1.5;
}

.service-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.service-card ul {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 8px;
  padding: 16px 0 0;
  margin: 18px 0 0;
  list-style: none;
  border-top: 1px solid #edf2f5;
}

.service-card li {
  position: relative;
  padding-right: 18px;
  color: #344653;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.8;
}

.service-card li::before {
  position: absolute;
  top: 11px;
  right: 0;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--green);
  border-radius: 50%;
}

.products-section {
  padding-top: 18px;
}

.product-album {
  position: relative;
  --visible-products: 3;
  --product-gap: 18px;
}

.product-album-viewport {
  overflow: hidden;
  direction: ltr;
}

.product-album-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: calc((100% - (var(--product-gap) * (var(--visible-products) - 1))) / var(--visible-products));
  gap: var(--product-gap);
  transition: transform 420ms ease;
  will-change: transform;
}

.product-album-card {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  color: inherit;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  direction: rtl;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.product-album-card:hover {
  border-color: rgba(13, 110, 168, 0.45);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.product-album-card figure {
  overflow: hidden;
  margin: 0;
  background: #eef3f6;
}

.product-album-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  object-position: center;
  transition: transform 420ms ease;
}

.product-image-placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  min-height: 150px;
  background:
    linear-gradient(135deg, rgba(18, 91, 130, .92), rgba(11, 42, 62, .98));
  color: rgba(255, 255, 255, .72);
  font-size: 1rem;
  font-weight: 900;
  letter-spacing: .18em;
}

.product-album-card:hover img {
  transform: none;
}

.product-album-card div {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 18px;
}

.product-album-card span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.product-album-card h3 {
  margin: 0;
  font-size: 21px;
  line-height: 1.45;
}

.product-album-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.product-album-card p,
.copper-product-card p {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
  align-self: start;
}

.product-album-arrow {
  position: absolute;
  top: 50%;
  z-index: 2;
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  padding: 0;
  color: #ffffff;
  cursor: pointer;
  background: var(--dark);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  box-shadow: 0 14px 32px rgba(16, 35, 50, 0.22);
  transform: translateY(-50%);
}

.product-album-arrow span {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  font-size: 34px;
  line-height: 1;
}

.product-album-arrow:hover {
  background: var(--blue);
}

.product-album-prev {
  left: -23px;
}

.product-album-next {
  right: -23px;
}

.product-hero {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0 42px;
}

.product-hero-featured {
  position: relative;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: 48px;
  border-bottom: 0;
}

.product-hero-featured::before {
  position: absolute;
  top: 52px;
  right: 0;
  width: 58px;
  height: 4px;
  content: "";
  background: var(--blue);
  border-radius: 999px;
}

.product-hero-copy {
  min-width: 0;
  padding-top: 24px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 13px;
}

.breadcrumb a {
  color: var(--blue);
  font-weight: 700;
}

.product-hero h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.18;
}

.product-hero p {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

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

.product-hero-featured .primary-button {
  background: var(--blue);
}

.product-hero-featured .secondary-button:hover,
.section-title-row a:hover {
  color: var(--blue);
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 26px;
}

.hero-proof span {
  min-height: 50px;
  padding: 10px 12px;
  color: #263849;
  background: #ffffff;
  border: 1px solid #e5ebef;
  border-bottom: 3px solid var(--blue);
  border-radius: 2px;
  font-size: 13px;
  font-weight: 800;
}

.product-hero-media {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  margin: 0;
  background: #f7f7f6;
  border: 1px solid #e2e7eb;
  border-radius: 2px;
  box-shadow: none;
}

.product-hero-media::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  background:
    linear-gradient(180deg, rgba(16, 35, 50, 0) 45%, rgba(16, 35, 50, 0.58) 100%),
    linear-gradient(90deg, rgba(184, 115, 69, 0.24), rgba(255, 255, 255, 0) 42%);
  pointer-events: none;
}

.product-hero-media img {
  width: 100%;
  height: 100%;
  min-height: 390px;
  object-fit: cover;
}

.product-hero-media figcaption {
  position: absolute;
  z-index: 2;
  right: 18px;
  bottom: 18px;
  left: 18px;
  display: grid;
  gap: 4px;
  padding: 16px;
  color: #ffffff;
  background: rgba(16, 35, 50, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 2px;
}

.product-hero-media figcaption strong {
  font-size: 17px;
}

.product-hero-media figcaption span {
  color: rgba(255, 255, 255, 0.76);
  font-size: 13px;
}

.copper-hero {
  position: relative;
  display: grid;
  align-items: end;
  width: 100%;
  min-height: 380px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  color: #ffffff;
  isolation: isolate;
}

.copper-hero::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: auto;
  height: auto;
  content: "";
  background:
    linear-gradient(90deg, rgba(9, 23, 35, 0.08), rgba(9, 23, 35, 0.84) 72%),
    linear-gradient(0deg, rgba(9, 23, 35, 0.48), rgba(9, 23, 35, 0.02) 58%);
  border-radius: 0;
}

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

.copper-hero-shell {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) 360px;
  gap: 36px;
  align-items: end;
  width: min(1180px, calc(100% - 32px));
  min-height: 380px;
  margin: 0 auto;
  padding: 58px 0 38px;
}

.copper-hero .product-hero-copy {
  max-width: 760px;
  padding-top: 0;
}

.copper-hero .breadcrumb {
  color: rgba(255, 255, 255, 0.72);
}

.copper-hero .breadcrumb a {
  color: #ffffff;
}

.copper-hero .eyebrow {
  color: #bfe6fb;
}

.copper-hero h1 {
  color: #ffffff;
}

.copper-hero p {
  color: rgba(255, 255, 255, 0.82);
}

.copper-hero .secondary-button {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
}

.copper-hero-summary {
  display: grid;
  gap: 10px;
}

.copper-hero-summary span {
  display: flex;
  align-items: center;
  min-height: 66px;
  padding: 14px 16px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-right: 4px solid var(--blue);
  border-radius: 2px;
  backdrop-filter: blur(14px);
  font-weight: 800;
}

.copper-category {
  width: min(1180px, calc(100% - 32px));
  margin: 46px auto 92px;
}

.product-tabs {
  position: sticky;
  top: 78px;
  z-index: 15;
  display: flex;
  gap: 28px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  overflow-x: auto;
  background: #ffffff;
  border-top: 1px solid #e6ecef;
  border-bottom: 1px solid #e6ecef;
}

.product-tabs a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 58px;
  color: #314250;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.product-tabs a::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 3px;
  content: "";
  background: transparent;
}

.product-tabs a:hover,
.product-tabs a.is-active {
  color: var(--blue);
}

.product-tabs a.is-active::after {
  background: var(--blue);
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 34px;
  width: min(1180px, calc(100% - 32px));
  margin: 54px auto 92px;
}

.product-main,
.product-sidebar {
  display: grid;
  gap: 18px;
  align-content: start;
}

.product-sidebar {
  position: sticky;
  top: 104px;
}

.product-image {
  overflow: hidden;
  margin: 0;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.product-image img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.product-panel {
  padding: 28px;
  background: #ffffff;
  border: 1px solid #e0e7ec;
  border-radius: 2px;
}

.product-panel h2,
.product-panel h3 {
  margin: 0 0 14px;
  line-height: 1.4;
}

.product-panel p {
  margin: 0;
  color: var(--muted);
}

.product-story {
  padding: 6px 0 18px;
  border-bottom: 1px solid #edf1f4;
}

.product-story h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.35;
}

.product-story p {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.section-kicker {
  margin: 0 0 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.product-overview {
  display: grid;
  grid-template-columns: 1fr 0.78fr;
  gap: 30px;
  align-items: center;
  padding-bottom: 34px;
  border-bottom: 1px solid #e6ecef;
}

.product-overview h2 {
  margin: 0 0 14px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.28;
}

.product-overview p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.product-overview figure {
  overflow: hidden;
  margin: 0;
  background: #f5f6f7;
  border-radius: 2px;
}

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

.section-title-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}

.section-title-row h2 {
  margin-bottom: 0;
}

.section-title-row a {
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.product-models-panel {
  background: #ffffff;
  border-color: #d8e1e7;
  box-shadow: none;
}

.product-panel-soft {
  background: #ffffff;
}

.product-type-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.type-card {
  position: relative;
  overflow: hidden;
  min-height: 176px;
  padding: 20px;
  background: #ffffff;
  border: 1px solid #dfe7ec;
  border-top: 3px solid var(--blue);
  border-radius: 2px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.type-card::after {
  position: absolute;
  top: -46px;
  left: -42px;
  width: 112px;
  height: 112px;
  content: "";
  background: rgba(13, 110, 168, 0.06);
  border-radius: 50%;
}

.type-card:hover {
  border-color: rgba(13, 110, 168, 0.38);
  box-shadow: 0 12px 28px rgba(23, 33, 43, 0.08);
  transform: translateY(-3px);
}

.type-card span {
  display: inline-grid;
  width: 38px;
  height: 30px;
  place-items: center;
  margin-bottom: 18px;
  color: var(--blue);
  background: #edf6fb;
  border-radius: 2px;
  font-size: 13px;
  font-weight: 800;
}

.type-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 17px;
}

.copper-product-grid {
  align-items: stretch;
}

.copper-product-card {
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  min-height: 100%;
  padding: 0 0 20px;
  color: inherit;
  border-radius: 8px;
}

.copper-product-card::after {
  content: none;
}

.copper-product-card figure {
  overflow: hidden;
  margin: 0 0 18px;
  background: #f5f6f7;
  border-radius: 8px 8px 0 0;
}

.copper-product-card img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: contain;
  object-position: center;
  border-radius: 8px 8px 0 0;
}

.copper-product-card span,
.copper-product-card strong,
.copper-product-card p,
.copper-product-card ul,
.copper-product-card em {
  margin-right: 20px;
  margin-left: 20px;
}

.copper-product-card p {
  margin-bottom: 16px;
  color: var(--muted);
}

.copper-product-card ul {
  display: grid;
  gap: 8px;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid #edf1f4;
}

.copper-product-card li {
  position: relative;
  padding-right: 18px;
  color: #405260;
  font-size: 13px;
  font-weight: 700;
}

.copper-product-card li::before {
  position: absolute;
  top: 10px;
  right: 0;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--blue);
  border-radius: 50%;
}

.copper-product-card em {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  margin-top: 2px;
  color: var(--blue);
  background: #edf6fb;
  border-radius: 2px;
  font-style: normal;
  font-weight: 800;
}

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

.hvac-part-card {
  min-height: 100%;
}

.hvac-part-card img {
  object-position: center;
}

/* The product occupies the left part of our 3:1 banners; discard text space in cards. */
.product-album-card img.is-wide-product-banner,
.copper-product-card img.is-wide-product-banner {
  object-fit: cover;
  object-position: left center;
}

.copper-product-card .product-image-placeholder,
.product-album-card .product-image-placeholder {
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: 16 / 11;
  margin: 0;
}

.product-album-card .product-image-placeholder {
  aspect-ratio: 16 / 9;
}

.hvac-part-card strong {
  font-size: 18px;
}

.hvac-part-card p {
  font-size: 14px;
  line-height: 1.85;
}

.hvac-part-card ul {
  margin: 0;
}

.hvac-part-card li {
  color: #405260;
}

.copper-category-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
}

.copper-category-cta h2 {
  grid-column: 1;
  margin-bottom: 4px;
}

.copper-category-cta p {
  grid-column: 1;
}

.copper-category-cta a {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.copper-detail-hero {
  height: 420px;
  min-height: 420px;
}

.copper-detail-hero .copper-hero-shell {
  grid-template-columns: minmax(0, 760px);
  height: 420px;
  min-height: 420px;
}

.copper-detail {
  width: min(1180px, calc(100% - 32px));
  margin: 46px auto 92px;
}

.copper-detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  align-items: start;
}

.copper-detail-grid.is-category-landing {
  grid-template-columns: minmax(0, 1fr);
}

.copper-detail-text {
  display: grid;
  min-width: 0;
  gap: 24px;
}

.copper-detail-grid > *,
.copper-detail-text > *,
.reading-main,
.product-panel {
  min-width: 0;
}

.reading-layout {
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 44px;
}

.reading-main {
  max-width: 820px;
}

.reading-section {
  padding: 0 0 30px;
  border-bottom: 1px solid #e4ebef;
  overflow-wrap: anywhere;
}

.reading-section:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.reading-section h2,
.article-body h2 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: clamp(24px, 2.2vw, 34px);
  line-height: 1.45;
}

.product-reading-section h3 {
  margin: 30px 0 12px;
  color: var(--ink);
  font-size: clamp(21px, 1.8vw, 28px);
  font-weight: 800;
  line-height: 1.5;
}

.product-inline-image {
  display: grid;
  justify-items: center;
  margin: 28px 0;
}

.product-inline-image img {
  display: block;
  width: auto;
  max-width: 80%;
  height: auto;
  max-height: 416px;
  border-radius: 12px;
}

.product-inline-image figcaption {
  max-width: 100%;
  padding-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  text-align: center;
  overflow-wrap: anywhere;
}

.product-sizes, #product-sizes-editor { scroll-margin-top: 90px; }
.product-size-table { width: 100%; margin-top: 14px; border: 1px solid var(--line); border-spacing: 0; border-radius: 8px; table-layout: fixed; overflow: hidden; font-size: 14px; text-align: center; }
.product-size-table th { padding: 6px 8px; background: #edf6fb; color: #17415c; font-size: 13px; line-height: 1.4; }
.product-size-table td { padding: 4px 6px; border-top: 1px solid var(--line); vertical-align: middle; line-height: 1.4; }
.product-size-table tr:nth-child(even) td { background: #fafcfd; }
.product-size-table tr.product-size-band-a td { background: #f4f9fd; }
.product-size-table tr.product-size-band-b td { background: #fff9f0; }
.product-size-table tr.product-size-group-start:not(:first-child) td { border-top: 2px solid #d5e2eb; }
.product-size-inch { font-size: 16px; font-weight: 800; }
.product-sizes-footer { display: flex; justify-content: flex-end; margin-top: 8px; }
.product-sizes-footer a { display: inline-flex; align-items: center; min-height: 40px; padding: 6px 14px; border: 1px solid #bdd8e8; border-radius: 6px; background: #f4f9fc; color: var(--blue); font-size: 13px; font-weight: 700; }
.product-size-brands a { color: var(--blue); }
.product-size-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-block: 16px; }
.product-brand-size-section { margin-block: 16px; padding-top: 10px; border-top: 1px solid var(--line); }
.product-brand-size-section h3 { margin-block: 0 8px; color: #17415c; font-size: 19px; }
.product-brand-size-heading { display: flex; align-items: baseline; flex-wrap: wrap; gap: 6px 12px; margin-bottom: 8px; }
.product-brand-size-heading h3 { flex: 1; min-width: 180px; margin: 0; }
.product-price-updated { margin-inline-start: auto; color: #64748b; font-size: 11px; font-weight: 400; text-align: left; white-space: nowrap; }
.product-size-filters a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 14px; border: 1px solid #bdd8e8; border-radius: 22px; color: var(--blue); }
.product-size-filters a[aria-current="true"] { background: var(--blue); color: #fff; }
.product-price-note { color: #526576; font-size: 14px; line-height: 1.9; }
.product-unit-price-card { margin-block: 18px; padding: 24px; border: 1px solid #d8e5ee; border-inline-start: 4px solid #1b648e; border-radius: 16px; background: linear-gradient(135deg, #fff, #f4f9fc); box-shadow: 0 8px 24px rgba(23, 65, 92, .06); }
.product-unit-price-card h3 { margin: 0; font-size: 18px; color: #17415c; }
.product-price-card-heading { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 20px; margin-bottom: 18px; }
.product-price-card-heading h2, .product-price-card-heading h3 { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.product-stock { display: inline-flex; align-items: center; gap: 8px; max-width: 100%; padding: 7px 13px; border: 1px solid #a7dfbc; border-radius: 999px; background: #ecfdf3; color: #166534; font-size: 13px; font-weight: 800; line-height: 1.7; }
.product-stock-dot { width: 7px; height: 7px; flex: 0 0 7px; border-radius: 50%; background: currentColor; }
.product-stock.is-unavailable { color: #a12525; border-color: #f3c4c4; background: #fff1f1; }
.product-stock.is-pending { color: #815a0b; border-color: #ead7aa; background: #fff9e9; }
.product-unit-price-amount { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 18px; margin-block: 14px 8px; }
.product-price-figure { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; margin: 0; min-width: 0; }
.product-unit-price-amount strong { color: #123e5a; font-size: clamp(26px, 4vw, 36px); font-weight: 900; line-height: 1.5; overflow-wrap: anywhere; }
.product-price-currency { color: #496273; font-size: 16px; font-weight: 700; }
.product-price-unit { color: #526576; font-size: 13px; }
.product-unit-price-card .product-price-updated { display: block; text-align: start; margin: 0; white-space: normal; }
.product-attributes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 24px; margin: 0; }
.product-attributes > div { display: grid; grid-template-columns: minmax(70px, .8fr) minmax(0, 1.2fr); gap: 12px; padding-block: 13px; border-bottom: 1px solid #e4ebf0; }
.product-attributes dt { color: #627484; }
.product-attributes dd { margin: 0; color: #17415c; font-weight: 700; overflow-wrap: anywhere; }
@media (max-width: 640px) {
  .product-unit-price-card { padding: 18px 16px; border-radius: 12px; }
  .product-attributes { grid-template-columns: minmax(0, 1fr); }
}
.product-price-scroll { max-width: 100%; overflow-x: auto; border-radius: 8px; }
.product-price-scroll:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.product-size-table tr[hidden], .product-size-toggle[hidden] { display: none; }
.product-size-toggle { display: flex; align-items: center; justify-content: center; gap: 10px; max-width: 100%; min-height: 44px; margin: 8px auto 0; padding: 6px 16px; border: 1px solid #bdd8e8; border-radius: 6px; background: #f4f9fc; color: var(--blue); font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; }
.product-size-toggle:hover { background: #e8f3fa; }
.product-size-toggle:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.product-size-toggle[aria-expanded="true"] .product-size-toggle-icon { transform: rotate(180deg); }
.product-price-scroll .product-size-table { min-width: 620px; table-layout: auto; margin-top: 6px; }
.product-price-scroll .product-size-brands { min-width: 65px; }
.product-price-scroll .product-size-brands a { display: block; white-space: nowrap; }
.product-brand-size-section .product-price-scroll-hint { display: none; margin-block: 4px; color: #526576; font-size: 12px; line-height: 1.4; }
.product-price-value { display: grid; gap: 0; padding: 0; white-space: nowrap; }
.product-price-value small { font-size: 11px; color: #526576; white-space: normal; }
.product-size-actions a { display: block; min-height: 44px; padding: 8px; color: var(--blue); font-weight: 700; }
.selected-size-inquiry { padding: 16px; margin: 18px 0; border: 1px solid #a7cde3; border-radius: 8px; background: #f4f9fc; overflow-wrap: anywhere; scroll-margin-top: 90px; }
.selected-size-inquiry p { margin-block: 12px; }
.selected-size-inquiry a { color: var(--blue); }

@media (max-width: 640px) {
  .product-size-table th { padding: 5px; font-size: 12px; }
  .product-size-table td { padding: 4px 5px; font-size: 13px; }
  .product-brand-size-section .product-price-scroll-hint { display: block; }
}

.product-reading-section h4 {
  margin: 22px 0 10px;
  color: #334754;
  font-size: clamp(18px, 1.35vw, 22px);
  font-weight: 700;
  line-height: 1.6;
}

.article-body h2 {
  margin-top: 38px;
  padding-top: 4px;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body p,
.reading-section p {
  max-width: 760px;
  margin: 0 0 18px;
  color: #485865;
  font-size: 18px;
  line-height: 2.15;
}

.article-body p:last-child,
.reading-section p:last-child {
  margin-bottom: 0;
}

.reading-lead {
  color: #263846;
  font-size: 20px;
  line-height: 2.1;
}

.reading-outline {
  padding: 24px 0 26px;
  border-top: 3px solid var(--blue);
}

.reading-outline .section-kicker {
  margin-bottom: 8px;
}

.reading-outline ul,
.reading-bullets,
.reading-links {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.reading-outline li,
.reading-bullets li {
  position: relative;
  padding-right: 24px;
  color: #3c4d59;
  font-size: 16px;
  line-height: 1.9;
}

.reading-outline li::before,
.reading-bullets li::before {
  position: absolute;
  top: 14px;
  right: 0;
  width: 9px;
  height: 9px;
  content: "";
  background: var(--green);
  border-radius: 50%;
}

.reading-question {
  margin: 26px 0 8px;
  color: var(--ink);
  font-size: 19px;
  line-height: 1.7;
}

.reading-answer {
  padding-right: 18px;
  border-right: 3px solid #d7e5ee;
}

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

.reading-links a {
  display: block;
  padding: 12px 14px;
  color: var(--blue);
  background: #f5f9fb;
  border-right: 3px solid #9cc7df;
  font-weight: 800;
}

.product-brand-band {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 20px;
  padding: 30px;
  color: var(--ink);
  background: #f5f6f7;
  border-right: 4px solid var(--blue);
  border-radius: 2px;
}

.product-brand-band h2 {
  margin: 0;
  line-height: 1.4;
}

.product-brand-band p {
  margin: 0;
  color: var(--muted);
}

.product-brand-band .section-kicker {
  color: var(--blue);
}

.product-brand-band .brand-grid {
  grid-column: 1 / -1;
  margin-top: 0;
}

.product-brand-band .brand-grid span {
  color: var(--ink);
  background: #ffffff;
  border-color: #e0e7ec;
}

.product-process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  background: #dfe7ec;
  border: 1px solid #dfe7ec;
  border-radius: 2px;
}

.product-process div {
  min-height: 170px;
  padding: 22px;
  background: #ffffff;
}

.product-process span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  margin-bottom: 18px;
  color: #ffffff;
  background: var(--blue);
  border-radius: 2px;
  font-weight: 800;
}

.product-process strong {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
}

.product-process p {
  margin: 0;
  color: var(--muted);
}

.brand-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-top: 18px;
}

.brand-grid span {
  display: grid;
  min-height: 48px;
  place-items: center;
  padding: 10px;
  background: #f8fafb;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  font-weight: 800;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  padding: 18px;
  background: #f8fafb;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.faq-item h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.feature-list,
.spec-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.feature-list li,
.spec-list li {
  padding: 11px 13px;
  background: #fbfcfd;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.feature-list li {
  position: relative;
  padding-right: 32px;
}

.feature-list li::before {
  position: absolute;
  top: 19px;
  right: 14px;
  width: 8px;
  height: 8px;
  content: "";
  background: #11a87b;
  border-radius: 50%;
}

.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.spec-list span {
  color: var(--muted);
}

.product-cta {
  color: #ffffff;
  background: var(--dark);
}

.product-cta p {
  color: rgba(255, 255, 255, 0.76);
}

.product-cta a {
  margin-top: 18px;
}

.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 44px;
}

.split-image {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.split-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.check-list {
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.check-list li {
  margin: 10px 0;
  color: var(--ink);
  font-weight: 700;
}

.check-list li::before {
  content: "";
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-left: 10px;
  background: var(--green);
  border-radius: 50%;
}

.seo-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  padding: 34px;
  color: #ffffff;
  background: var(--dark);
  border-radius: 8px;
}

.seo-panel p {
  color: rgba(255, 255, 255, 0.74);
}

.seo-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.seo-list span {
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  font-weight: 700;
}

.muted {
  padding: 56px 0;
}

.home-articles {
  width: 100%;
  margin: 92px 0;
  padding: 72px 0 82px;
  background:
    radial-gradient(circle at 14% 18%, rgba(17, 168, 123, 0.12), transparent 28%),
    radial-gradient(circle at 86% 12%, rgba(13, 110, 168, 0.14), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, #f4f8fb 48%, #eef5f8 100%);
  border-top: 1px solid #e6edf1;
  border-bottom: 1px solid #e6edf1;
}

.home-articles .section-heading,
.home-articles .article-grid {
  width: min(1180px, calc(100% - 32px));
  margin-right: auto;
  margin-left: auto;
}

.home-articles .section-heading {
  grid-template-columns: 1fr;
  max-width: 760px;
  text-align: center;
}

.home-articles .section-heading p {
  color: var(--muted);
}

.home-articles .secondary-button {
  justify-self: center;
  color: var(--blue);
  background: #ffffff;
  border-color: #c9dce8;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.article-grid article,
.article-grid a {
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-grid figure {
  overflow: hidden;
  margin: 0;
  background: #eef3f6;
}

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

/* Wide article covers keep the subject on the left and reserve the right for text. */
.article-grid img.is-wide-article-cover {
  object-position: left center;
}

.article-grid div {
  padding: 0 20px 22px;
}

.article-grid h3,
.article-grid p {
  margin-right: 20px;
  margin-left: 20px;
}

.article-grid div h3,
.article-grid div p {
  margin-right: 0;
  margin-left: 0;
}

.article-grid span,
.article-grid em {
  font-style: normal;
  font-weight: 800;
}

.article-grid span {
  display: inline-block;
  margin-top: 18px;
  color: var(--green);
  font-size: 13px;
}

.article-grid h3 {
  min-height: 74px;
  margin-top: 18px;
  font-size: 18px;
  line-height: 1.55;
}

.article-grid p {
  margin-bottom: 22px;
  color: var(--muted);
}

.article-grid em {
  color: var(--blue);
  font-size: 14px;
}

.home-articles .article-grid {
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
}

.home-articles .article-grid a,
.home-articles .article-grid article {
  position: relative;
  display: grid;
  min-height: 100%;
  color: inherit;
  border-color: rgba(220, 228, 234, 0.9);
  box-shadow: 0 18px 42px rgba(23, 33, 43, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.home-articles .article-grid a:hover,
.home-articles .article-grid article:hover {
  border-color: rgba(13, 110, 168, 0.28);
  box-shadow: 0 26px 58px rgba(23, 33, 43, 0.14);
  transform: translateY(-4px);
}

.home-articles .article-grid img {
  transition: transform 420ms ease;
}

.home-articles .article-grid a:hover img,
.home-articles .article-grid article:hover img {
  transform: scale(1.04);
}

.home-articles .article-grid div {
  display: grid;
  align-content: start;
}

.home-articles .article-grid h3 {
  min-height: auto;
  margin-top: 10px;
  font-size: 19px;
}

.about {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 28px;
  padding-top: 42px;
  border-top: 1px solid var(--line);
}

.contact-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
  align-items: start;
  padding: 34px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-page {
  margin-top: 32px;
}

.contact-info {
  display: grid;
  gap: 18px;
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.contact-cards div {
  display: grid;
  gap: 6px;
  min-height: 116px;
  padding: 18px;
  background: #f8fafb;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.contact-cards strong {
  color: var(--ink);
}

.contact-cards a,
.contact-cards span {
  color: var(--muted);
}

.contact-cards > div { min-width: 0; }
.contact-cards a, .contact-cards span { overflow-wrap: anywhere; }
.contact-card-wide { grid-column: 1 / -1; }
.contact-cards .contact-phone-card {
  padding: 16px 18px;
  min-height: 0;
  gap: 4px;
  border-right: 2px solid var(--blue);
}
.contact-cards .contact-phone-link {
  display: block;
  padding: 6px 0;
  min-height: 44px;
  border-radius: 4px;
  color: #094a72;
}
.contact-phone-number {
  display: block;
  font-size: 18px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
  line-height: 1.8;
  text-align: right;
  white-space: nowrap;
}
.contact-phone-link:hover { background: #e1f0fb; }
.contact-phone-link:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; }
.contact-cards .contact-phone-mobile { border-right-color: #08765c; }
.contact-cards .contact-phone-mobile .contact-phone-link { color: #075e4b; }
.contact-phone-mobile .contact-phone-link:hover { background: #dff3eb; }
.contact-actions-panel {
  display: grid;
  align-content: start;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: linear-gradient(160deg, #f0f8fc, #fff);
}
.contact-actions-panel h2, .contact-actions-panel p { margin: 0; }
.contact-actions-panel p { color: var(--muted); }
.contact-action-links { display: grid; gap: 12px; }
.contact-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  border-radius: 8px;
  color: #fff;
  font-weight: 700;
}
.contact-action-whatsapp { background: #128c7e; }
.contact-action-rubika { background: var(--blue); }
.contact-action-phone, .contact-action-email { color: var(--ink); background: #fff; border: 1px solid var(--line); }
.contact-action:hover { filter: brightness(.95); }

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  color: var(--ink);
  background: #f8fafb;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

.contact-form textarea {
  resize: vertical;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 600;
}

.footer-brand img {
  width: 40px;
  height: 37px;
  flex: 0 0 auto;
  object-fit: contain;
}

.control-page {
  background: #f5f8fa;
}

.control-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  align-items: end;
  width: min(1180px, calc(100% - 32px));
  margin: 34px auto 0;
  padding: 42px;
  color: #ffffff;
  background:
    linear-gradient(135deg, rgba(16, 35, 50, 0.96), rgba(13, 110, 168, 0.88)),
    url("/assets/images/copper-pipe-factory-hero.jpg") center / cover;
  border-radius: 8px;
}

.control-hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.25;
}

.control-hero p {
  max-width: 680px;
  margin: 18px 0 0;
  color: rgba(255, 255, 255, 0.78);
}

.control-hero .breadcrumb {
  color: rgba(255, 255, 255, 0.7);
}

.control-hero-status {
  padding: 22px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.control-hero-status span,
.control-stat-grid span,
.bot-command-card span,
.control-table span,
.run-timeline span {
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
}

.control-hero-status strong {
  display: block;
  margin-top: 8px;
  font-size: 20px;
}

.control-hero-status p {
  margin-top: 8px;
  font-size: 14px;
}

.control-shell {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 24px;
  width: min(1180px, calc(100% - 32px));
  margin: 28px auto 92px;
  align-items: start;
}

.control-sidebar {
  position: sticky;
  top: 98px;
  display: grid;
  gap: 6px;
  padding: 12px;
  background: #ffffff;
  border: 1px solid #dfe8ee;
  border-radius: 8px;
}

.control-sidebar a {
  padding: 10px 12px;
  color: #304554;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
}

.control-sidebar a:hover {
  color: var(--blue);
  background: #edf6fb;
}

.control-main {
  display: grid;
  gap: 20px;
}

.control-section {
  padding: 26px;
  background: #ffffff;
  border: 1px solid #dfe8ee;
  border-radius: 8px;
}

.control-section-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 22px;
}

.control-section-head h2 {
  margin: 0;
  font-size: 26px;
  line-height: 1.35;
}

.control-admin-link {
  padding: 9px 12px;
  color: var(--blue);
  background: #f2f8fb;
  border: 1px solid #cfe2ed;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.bot-command-grid,
.control-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.bot-command-card,
.control-stat-grid div {
  display: grid;
  align-content: start;
  min-height: 220px;
  padding: 20px;
  background: #f8fbfc;
  border: 1px solid #dfe8ee;
  border-radius: 8px;
}

.bot-command-card.is-primary {
  color: #ffffff;
  background: var(--dark);
  border-color: var(--dark);
}

.bot-command-card h3 {
  margin: 12px 0 8px;
  font-size: 20px;
}

.bot-command-card p,
.control-stat-grid p,
.control-list p,
.control-table p,
.run-timeline p {
  margin: 0;
  color: var(--muted);
}

.bot-command-card.is-primary p {
  color: rgba(255, 255, 255, 0.76);
}

.bot-command-card form {
  margin-top: auto;
  padding-top: 18px;
}

.bot-command-card button {
  width: 100%;
  min-height: 42px;
  color: #ffffff;
  cursor: pointer;
  background: var(--blue);
  border: 0;
  border-radius: 6px;
  font: inherit;
  font-weight: 800;
}

.bot-command-card.is-primary button {
  color: var(--dark);
  background: #ffffff;
}

.control-stat-grid div {
  min-height: 154px;
}

.control-stat-grid strong {
  display: block;
  margin: 10px 0 8px;
  color: var(--blue);
  font-size: 34px;
  line-height: 1;
}

.control-list,
.control-table,
.run-timeline {
  display: grid;
  gap: 10px;
}

.control-list article,
.control-table a,
.control-table div,
.run-timeline article {
  display: grid;
  gap: 7px;
  padding: 16px;
  color: inherit;
  background: #f8fbfc;
  border: 1px solid #dfe8ee;
  border-radius: 8px;
}

.control-table a:hover {
  border-color: rgba(13, 110, 168, 0.3);
  box-shadow: 0 12px 28px rgba(23, 33, 43, 0.08);
}

.control-list strong,
.control-table strong,
.run-timeline strong {
  color: var(--ink);
  font-size: 16px;
}

.control-list em,
.control-table em {
  color: #496171;
  font-style: normal;
  font-size: 13px;
}

.control-badge {
  justify-self: start;
  padding: 4px 8px;
  color: var(--blue);
  background: #edf6fb;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
}

.control-badge.is-high {
  color: #b42318;
  background: #fff1f0;
}

.control-badge.is-medium {
  color: #925400;
  background: #fff7e6;
}

.control-badge.is-low {
  color: #0b7a5f;
  background: #eaf8f3;
}

@media (max-width: 960px) {
  .product-type-grid.category-product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .header-shell {
    grid-template-columns: 1fr auto;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 16px;
    left: 16px;
    display: none;
    max-height: calc(100vh - 100px);
    max-height: calc(100dvh - 100px);
    overflow-y: auto;
    overscroll-behavior: contain;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 12px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .main-nav > * { flex-shrink: 0; }

  .nav-dropdown {
    display: grid;
  }

  .nav-dropdown-toggle {
    width: 100%;
    text-align: right;
  }

  .main-nav a,
  .nav-dropdown-toggle {
    min-height: 44px;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .dropdown-menu {
    position: static;
    display: none;
    grid-template-columns: minmax(0, 1fr);
    width: 100%;
    max-height: none;
    overflow: visible;
    padding: 8px;
    margin-top: 4px;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .dropdown-menu::before { display: none; }

  .dropdown-group {
    padding: 6px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .dropdown-group:last-child {
    border-bottom: 0;
  }

  .nav-dropdown.is-open .dropdown-menu {
    display: grid;
    transform: none;
  }

  .main-nav.is-open {
    display: flex;
  }

  .menu-button {
    display: block;
  }

  .call-button {
    display: none;
  }

  .metrics,
  .service-grid,
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .home-articles {
    background:
      radial-gradient(circle at 14% 18%, rgba(17, 168, 123, 0.12), transparent 28%),
      radial-gradient(circle at 86% 12%, rgba(13, 110, 168, 0.14), transparent 30%),
      linear-gradient(180deg, #ffffff 0%, #f4f8fb 48%, #eef5f8 100%);
  }

  .home-articles .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-album {
    --visible-products: 2;
  }

  .copper-prices {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .split-section,
  .seo-panel,
  .about,
  .contact-section,
  .product-hero-featured,
  .copper-hero-shell,
  .product-layout,
  .product-brand-band,
  .product-process,
  .product-overview,
  .product-type-grid,
  .hvac-parts-grid {
    grid-template-columns: 1fr;
  }

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

  .product-sidebar {
    position: static;
  }

  .product-tabs {
    top: 70px;
  }

  .copper-detail-grid,
  .copper-category-cta {
    grid-template-columns: minmax(0, 1fr);
  }

  .product-cta { position: static; }

  .control-hero,
  .control-shell {
    grid-template-columns: 1fr;
  }

  .control-sidebar {
    position: static;
    grid-template-columns: repeat(3, 1fr);
  }

  .bot-command-grid,
  .control-stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .copper-hero-shell {
    min-height: 430px;
    padding-top: 74px;
  }

  .copper-detail-hero,
  .copper-detail-hero .copper-hero-shell {
    height: auto;
    min-height: 360px;
  }

  .copper-category-cta h2,
  .copper-category-cta p,
  .copper-category-cta a {
    grid-column: auto;
    grid-row: auto;
  }

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

  .trade-services {
    background:
      linear-gradient(90deg, rgba(6, 19, 29, 0.2), rgba(6, 19, 29, 0.58) 48%, rgba(6, 19, 29, 0.78)),
      url("/assets/images/generated/welding-background.png") 35% center / cover no-repeat;
  }
}

@media (max-width: 640px) {
  .product-type-grid.category-product-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .brand-logo {
    width: 44px;
    height: 41px;
  }
  .header-shell {
    min-height: 70px;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 620px;
  }

  .hero-content {
    padding-bottom: 64px;
  }

  .home-desk-visual {
    min-height: 390px;
    padding: 28px;
    background:
      linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.84) 42%, rgba(255, 255, 255, 0.3) 100%),
      url("/assets/images/generated/desk.png") center bottom / cover no-repeat;
  }

  .home-desk-visual div {
    margin-right: 0;
  }

  .trade-services {
    padding: 54px 0 62px;
    background:
      linear-gradient(180deg, rgba(6, 19, 29, 0.18), rgba(6, 19, 29, 0.62) 34%, rgba(6, 19, 29, 0.82)),
      url("/assets/images/generated/welding-background.png") center top / cover no-repeat;
  }

  .metrics,
  .service-grid,
  .article-grid,
  .copper-grid,
  .seo-list,
  .hero-proof,
  .brand-grid,
  .reading-links {
    grid-template-columns: 1fr;
  }

  .home-articles {
    padding: 54px 0 62px;
    background:
      radial-gradient(circle at 14% 18%, rgba(17, 168, 123, 0.12), transparent 28%),
      radial-gradient(circle at 86% 12%, rgba(13, 110, 168, 0.14), transparent 30%),
      linear-gradient(180deg, #ffffff 0%, #f4f8fb 48%, #eef5f8 100%);
  }

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

  .home-articles .secondary-button {
    justify-self: center;
  }

  .product-album {
    --visible-products: 1;
  }

  .product-album-prev {
    left: 8px;
  }

  .product-album-next {
    right: 8px;
  }

  .product-hero {
    margin-top: 24px;
    padding-top: 36px;
  }

  .copper-hero {
    min-height: 460px;
    margin-top: 0;
    padding-top: 0;
  }

  .copper-hero-shell {
    min-height: 460px;
    padding: 54px 0 30px;
  }

  .copper-detail-hero,
  .copper-detail-hero .copper-hero-shell {
    height: auto;
    min-height: 0;
  }

  .copper-detail-hero {
    display: block;
    background: var(--dark);
  }

  .copper-detail-hero::before { display: none; }

  .copper-detail-hero .copper-hero-bg {
    position: static;
    display: block;
    height: auto;
    max-height: 240px;
    object-fit: contain;
  }

  .copper-detail-hero .copper-hero-shell {
    display: block;
    padding: 24px 0 28px;
  }

  .copper-detail-hero .product-hero-copy { padding-top: 0; }
  .copper-detail-hero h1 { font-size: clamp(26px, 7vw, 34px); line-height: 1.45; overflow-wrap: anywhere; }
  .copper-detail-hero p { margin-top: 12px; font-size: 15px; line-height: 1.95; }
  .copper-detail-hero .breadcrumb { font-size: 12px; gap: 6px; overflow-wrap: anywhere; }
  .product-type-grid { grid-template-columns: minmax(0, 1fr); }
  .product-cta .primary-button { width: 100%; text-align: center; }

  .copper-hero-summary {
    gap: 8px;
  }

  .product-tabs {
    gap: 22px;
  }

  .product-hero-featured .hero-actions {
    display: grid;
  }

  .control-hero {
    padding: 28px;
  }

  .control-sidebar,
  .bot-command-grid,
  .control-stat-grid {
    grid-template-columns: 1fr;
  }

  .control-section {
    padding: 20px;
  }

  .control-section-head {
    display: grid;
    align-items: start;
  }

  .control-admin-link {
    justify-self: start;
  }

  .product-hero-media,
  .product-hero-media img {
    min-height: 320px;
  }

  .product-panel,
  .product-brand-band {
    padding: 22px;
  }

  .copper-detail {
    width: min(100% - 28px, 1180px);
    margin-top: 34px;
  }

  .article-body p,
  .reading-section p {
    font-size: 16px;
    line-height: 2;
  }

  .reading-lead {
    font-size: 17px;
  }

  .reading-section h2,
  .article-body h2 {
    font-size: 23px;
  }

  .section-title-row {
    display: grid;
    align-items: start;
  }

  .metrics div {
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .metrics div:last-child {
    border-bottom: 0;
  }

  .section,
  .split-section,
  .seo-panel,
  .contact-section {
    margin: 56px auto;
  }

  .seo-panel,
  .contact-section {
    padding: 24px;
  }

  .contact-cards {
    grid-template-columns: 1fr;
  }

  .site-footer {
    display: grid;
    gap: 8px;
  }
}