:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #5c6672;
  --line: #dfe5eb;
  --panel: #f6f8fa;
  --white: #ffffff;
  --copper: #b76432;
  --copper-dark: #804019;
  --green: #128c7e;
  --max: 1160px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
  padding: 10px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid rgba(23, 32, 42, 0.08);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.brand img {
  width: 128px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 34px);
  color: var(--muted);
  font-size: 15px;
}

.nav-item {
  position: relative;
}

.has-dropdown::after {
  content: "";
  position: absolute;
  top: 100%;
  left: -16px;
  right: -16px;
  height: 18px;
}

.nav-item > a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
}

.has-dropdown > a::after {
  content: "";
  width: 7px;
  height: 7px;
  margin-left: 7px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  z-index: 30;
  display: grid;
  min-width: 278px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 18px 42px rgba(23, 32, 42, 0.14);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, -6px);
  transition: opacity 0.2s ease 0.08s, transform 0.2s ease 0.08s;
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.dropdown-menu a {
  display: block;
  padding: 9px 11px;
  border-radius: 6px;
  color: var(--ink);
  white-space: nowrap;
}

.dropdown-menu a:hover {
  background: var(--panel);
}

.site-nav a,
.contact-lines a {
  text-decoration: none;
}

.site-nav a:hover,
.contact-lines a:hover {
  color: var(--copper-dark);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  min-height: 40px;
  padding: 0 14px;
}

.hero {
  position: relative;
  min-height: min(560px, calc(100vh - 74px));
  display: grid;
  align-items: center;
  padding: clamp(52px, 8vw, 86px) clamp(20px, 5vw, 72px);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(90deg, rgba(255,255,255,0.94), rgba(255,255,255,0.72) 48%, rgba(255,255,255,0.18));
}

.hero-content {
  max-width: 720px;
}

.hero-title-panel {
  width: min(480px, 100%);
  padding: clamp(12px, 1.8vw, 18px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.48);
  box-shadow: 0 12px 30px rgba(19, 32, 43, 0.12);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.hero-title-panel h1 {
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.04;
  text-transform: uppercase;
}

.hero-title-panel h1 span {
  display: block;
}

.hero-title-copper {
  color: var(--copper-dark);
}

.hero-title-dark {
  color: var(--ink);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--copper-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(38px, 5.6vw, 66px);
  line-height: 1;
  letter-spacing: 0;
  max-width: 780px;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.06;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.2;
}

.hero-copy {
  max-width: 560px;
  margin: 12px 0 0;
  color: #263746;
  font-size: clamp(15px, 1.5vw, 18px);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  border-color: var(--copper);
  background: var(--copper);
  color: var(--white);
}

.button.secondary {
  background: rgba(255,255,255,0.9);
}

.button.email {
  border-color: var(--line);
  background: var(--white);
  color: var(--ink);
}

.button.whatsapp {
  border-color: var(--green);
  background: var(--green);
  color: var(--white);
}

.button.facebook {
  border-color: #1877f2;
  background: #1877f2;
  color: var(--white);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(64px, 9vw, 112px) clamp(20px, 4vw, 32px);
}

.section.compact {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  max-width: none;
  padding: 0;
  border-block: 1px solid var(--line);
  background: var(--line);
}

.metric {
  min-height: 132px;
  padding: 28px clamp(20px, 4vw, 48px);
  background: var(--white);
}

.metric strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.metric span,
.section-heading p,
.product-card p,
.process p,
.split p,
.values p,
.contact p {
  color: var(--muted);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.section-heading p {
  max-width: 660px;
  font-size: 18px;
}

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

.product-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--white);
}

.product-card img {
  width: 100%;
  height: 158px;
  object-fit: contain;
  padding: 8px;
  background: #f8faf8;
}

.product-card div {
  padding: 14px;
}

.product-card h3 {
  margin: 0 0 10px;
  color: var(--copper-dark);
  font-size: 18px;
}

.product-card h3 a {
  display: inline-block;
  padding: 5px 8px;
  border-radius: 6px;
  background: rgba(190, 111, 63, 0.14);
  color: inherit;
}

.product-card a {
  text-decoration: none;
}

.product-page {
  background: #fbfcfb;
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 0.65fr);
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
}

.product-hero img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.detail-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 18px;
}

.detail-panel,
.spec-panel,
.gallery-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: clamp(18px, 3vw, 28px);
}

.detail-panel h2,
.spec-panel h2,
.gallery-panel h2 {
  font-size: clamp(22px, 3vw, 30px);
}

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

.spec-list li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.spec-list li:last-child {
  border-bottom: 0;
}

.spec-list strong {
  color: var(--ink);
}

.product-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.product-gallery img {
  width: 100%;
  height: 138px;
  object-fit: contain;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf8;
}

.benefit-grid,
.alloy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.benefit-card,
.alloy-card,
.note-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 18px;
}

.benefit-card h3,
.alloy-card h3,
.note-card h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

.alloy-card .meta {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--brand);
  font-weight: 800;
  font-size: 13px;
  text-transform: uppercase;
}

.ampacity-table-wrap {
  overflow-x: visible;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.ampacity-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  table-layout: fixed;
}

.ampacity-table th,
.ampacity-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.ampacity-table th {
  background: var(--white);
  color: var(--ink);
  font-size: 13px;
}

.ampacity-table tr:last-child td {
  border-bottom: 0;
}

.ampacity-chart {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.ampacity-chart img {
  display: block;
  width: 100%;
  height: auto;
}

.source-note {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.aluminum-page .page-hero {
  padding-top: clamp(46px, 7vw, 76px);
  padding-bottom: clamp(28px, 4vw, 44px);
}

.aluminum-page .product-hero {
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.55fr);
  gap: clamp(18px, 3vw, 34px);
}

.aluminum-page .product-hero h1 {
  max-width: 700px;
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.02;
}

.aluminum-page .product-hero p:not(.eyebrow) {
  max-width: 620px;
  font-size: 16px;
  line-height: 1.55;
}

.aluminum-page .product-hero img {
  max-height: 330px;
  padding: 14px;
}

.aluminum-page .section {
  padding-top: clamp(24px, 4vw, 42px);
  padding-bottom: clamp(24px, 4vw, 42px);
}

.aluminum-page .detail-layout {
  grid-template-columns: 1fr;
  max-width: 920px;
}

.aluminum-page .detail-panel,
.aluminum-page .spec-panel,
.aluminum-page .gallery-panel {
  padding: clamp(16px, 2.5vw, 22px);
}

.aluminum-page .detail-panel h2,
.aluminum-page .spec-panel h2,
.aluminum-page .gallery-panel h2,
.aluminum-page .section-heading h2 {
  font-size: clamp(22px, 2.4vw, 30px);
}

.aluminum-page .detail-panel p,
.aluminum-page .section-heading p,
.aluminum-page .spec-list span,
.aluminum-page .check-list li {
  font-size: 14px;
  line-height: 1.5;
}

.aluminum-page .spec-list {
  gap: 4px;
}

.aluminum-page .spec-list li {
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 8px 0;
}

.aluminum-page .spec-list strong {
  font-size: 13px;
}

.aluminum-page .aluminum-reference {
  display: block;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(24px, 4vw, 42px) clamp(20px, 4vw, 32px);
  border-block: 0;
  padding-top: 18px;
  background: var(--white);
}

.aluminum-page .aluminum-reference .section-heading {
  margin-bottom: 16px;
}

.aluminum-page .aluminum-reference .section-heading,
.aluminum-page .aluminum-reference .section-heading p {
  max-width: 760px;
}

.aluminum-page .ampacity-table {
  min-width: 0;
  font-size: 12px;
}

.aluminum-page .ampacity-table th,
.aluminum-page .ampacity-table td {
  padding: 7px 6px;
  line-height: 1.35;
  word-break: normal;
  overflow-wrap: anywhere;
}

.aluminum-page .ampacity-table th {
  font-size: 11px;
  line-height: 1.25;
}

.aluminum-page .gallery-panel {
  background: var(--white);
}

.aluminum-page .product-gallery img {
  height: 120px;
}

.process {
  max-width: none;
  background: var(--panel);
}

.process .section-heading,
.process-grid {
  max-width: var(--max);
  margin-inline: auto;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.process-grid article {
  min-height: 260px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.process-grid img {
  width: 100%;
  height: 116px;
  margin-bottom: 12px;
  border-radius: 6px;
  object-fit: cover;
  background: #edf2f5;
}

.process-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-bottom: 10px;
  border-radius: 50%;
  background: #edf2f5;
  color: var(--copper-dark);
  font-size: 13px;
  font-weight: 800;
}

.process-grid h3 {
  margin-bottom: 6px;
  font-size: 16px;
}

.process-grid p {
  margin: 0;
  font-size: 14px;
  line-height: 1.45;
}

.page-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(72px, 10vw, 126px) clamp(20px, 4vw, 32px) clamp(42px, 7vw, 76px);
}

.busbar-hero {
  padding-top: clamp(34px, 5vw, 58px);
  padding-bottom: clamp(24px, 3.5vw, 34px);
}

.busbar-hero h1 {
  max-width: 680px;
  margin-left: auto;
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.06;
}

.busbar-hero .busbar-hero-subtitle {
  max-width: 680px;
  margin-left: auto;
  margin-top: 10px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: clamp(16px, 1.45vw, 20px);
  font-weight: 500;
  line-height: 1.2;
}

.page-hero h1 {
  max-width: 860px;
}

.page-hero.busbar-hero h1 {
  max-width: 680px;
}

.page-hero p:not(.eyebrow) {
  max-width: 680px;
  color: var(--muted);
  font-size: 18px;
}

.busbar-hero .eyebrow,
.busbar-hero p:not(.eyebrow),
.busbar-hero .hero-actions {
  max-width: 680px;
  margin-left: auto;
}

.busbar-page .section {
  padding-top: clamp(34px, 5vw, 58px);
  padding-bottom: clamp(34px, 5vw, 58px);
}

.busbar-page h2 {
  font-size: clamp(25px, 3vw, 38px);
}

.busbar-page h3 {
  margin-bottom: 6px;
  font-size: 17px;
}

.busbar-page p,
.busbar-page li {
  font-size: 15px;
  line-height: 1.5;
}

.busbar-page .section-heading {
  margin-bottom: 20px;
}

.busbar-page .section-heading p {
  font-size: 15px;
}

.product-detail {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  padding-top: 36px;
}

.product-detail img {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 8px;
  border: 1px solid var(--line);
  object-fit: contain;
  padding: 14px;
  background: #f8faf8;
}

.busbar-hero {
  border-bottom: 1px solid var(--line);
}

.busbar-intro {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: clamp(20px, 3vw, 42px);
  align-items: center;
}

.busbar-intro img {
  width: 180px;
  height: 180px;
  margin-left: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  object-fit: contain;
  padding: 8px;
  background: #f8faf8;
}

.busbar-intro p,
.busbar-why p,
.feature-panel p,
.material-grid p,
.technical-grid p,
.cta-band p {
  color: var(--muted);
}

.busbar-why,
.materials-section {
  max-width: none;
  background: var(--panel);
}

.busbar-why .section-heading,
.materials-section .section-heading,
.insight-grid,
.material-grid {
  max-width: var(--max);
  margin-inline: auto;
}

.insight-grid,
.material-grid,
.technical-grid {
  display: grid;
  gap: 12px;
}

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

.insight-grid article,
.material-grid article,
.technical-grid article {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.feature-panel {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  align-items: center;
  padding: 0;
  background: transparent;
}

.feature-panel img {
  width: 140px;
  height: 140px;
  justify-self: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  object-fit: contain;
  padding: 8px;
  background: #f8faf8;
}

.compact-list {
  margin-top: 12px;
}

.compact-list li {
  padding: 10px 12px;
}

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

.material-wide {
  grid-column: 1 / -1;
}

.material-grid span {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--copper-dark);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

.technical-grid span {
  display: block;
  margin-bottom: 8px;
  color: var(--copper-dark);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.cta-band {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.busbar-why,
.materials-section,
.technical-section,
.cta-band {
  padding-top: clamp(34px, 5vw, 58px);
  padding-bottom: clamp(34px, 5vw, 58px);
}

.busbar-why .section-heading,
.materials-section .section-heading,
.technical-section .section-heading {
  margin-bottom: 24px;
}

.split,
.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(34px, 6vw, 84px);
  align-items: start;
}

.split {
  border-block: 1px solid var(--line);
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 16px 18px;
  border-left: 4px solid var(--copper);
  background: var(--panel);
}

.about {
  max-width: none;
  background: var(--panel);
}

.about .section-heading,
.values {
  max-width: var(--max);
  margin-inline: auto;
}

.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.values div {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.about-page .section {
  padding-top: clamp(42px, 6vw, 72px);
  padding-bottom: clamp(42px, 6vw, 72px);
}

.about-page h2 {
  font-size: clamp(28px, 3.4vw, 44px);
}

.about-page h3 {
  font-size: 18px;
}

.about-page p,
.about-page li {
  font-size: 15px;
  line-height: 1.55;
}

.about-page p,
.about-card-grid li,
.capability-list p {
  color: var(--muted);
}

.about-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding-top: clamp(42px, 6vw, 76px);
  padding-bottom: clamp(34px, 5vw, 58px);
}

.about-hero h1 {
  max-width: 720px;
  font-size: clamp(34px, 4.5vw, 56px);
}

.about-hero-subtitle {
  margin-top: 12px;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: clamp(18px, 1.8vw, 22px);
  font-weight: 700;
}

.about-hero img,
.about-rd img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  object-fit: cover;
  background: #f8faf8;
}

.about-hero img {
  aspect-ratio: 4 / 3;
}

.about-profile,
.about-capabilities {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: clamp(28px, 5vw, 74px);
  align-items: start;
}

.about-copy {
  display: grid;
  gap: 14px;
  max-width: 720px;
}

.about-copy p {
  margin: 0;
  padding: 0 0 14px;
  border-bottom: 1px solid var(--line);
}

.about-supply,
.about-pillars {
  max-width: none;
  background: var(--panel);
}

.about-supply .section-heading,
.about-pillars .section-heading,
.about-split,
.about-card-grid {
  max-width: var(--max);
  margin-inline: auto;
}

.about-split {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: clamp(26px, 5vw, 68px);
  align-items: start;
}

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

.application-tags span {
  min-height: 52px;
  display: flex;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font-weight: 800;
}

.about-rd {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}

.about-rd img {
  aspect-ratio: 1;
  object-fit: contain;
  padding: 12px;
}

.about-card-grid,
.capability-list {
  display: grid;
  gap: 14px;
}

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

.about-card-grid article,
.capability-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.about-card-grid article {
  padding: 18px;
}

.about-card-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: #edf2f5;
  color: var(--copper-dark);
  font-weight: 800;
}

.about-card-grid .compact-list li {
  padding: 9px 11px;
  background: #fbfcfd;
}

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

.capability-list article {
  padding: 18px;
}

.contact-lines {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  font-weight: 800;
}

.inquiry-form {
  display: grid;
  gap: 14px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

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

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
}

input {
  min-height: 44px;
  padding: 0 12px;
}

textarea {
  resize: vertical;
  padding: 12px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px clamp(20px, 4vw, 56px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
  }

  .site-nav {
    position: absolute;
    inset: 74px 0 auto 0;
    display: none;
    grid-template-columns: 1fr;
    gap: 0;
    border-bottom: 1px solid var(--line);
    background: var(--white);
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    padding: 16px 22px;
    border-top: 1px solid var(--line);
  }

  .nav-item > a {
    min-height: auto;
  }

  .dropdown-menu {
    position: static;
    display: grid;
    min-width: 0;
    padding: 0 0 8px 18px;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .has-dropdown::after {
    display: none;
  }

  .dropdown-menu a {
    padding: 10px 22px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    white-space: normal;
  }

  .hero::after {
    background: linear-gradient(90deg, rgba(255,255,255,0.96), rgba(255,255,255,0.75));
  }

  .section.compact,
  .product-detail,
  .product-hero,
  .detail-layout,
  .values,
  .about-hero,
  .about-profile,
  .about-split,
  .about-rd,
  .about-card-grid,
  .about-capabilities,
  .busbar-intro,
  .insight-grid,
  .feature-panel,
  .material-grid,
  .benefit-grid,
  .alloy-grid,
  .technical-grid,
  .cta-band,
  .process-grid,
  .split,
  .contact {
    grid-template-columns: 1fr;
  }

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

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

  .application-tags,
  .capability-list {
    grid-template-columns: 1fr;
  }

  .about-rd img {
    max-width: 260px;
  }

  .aluminum-page .ampacity-table {
    font-size: 10px;
  }

  .aluminum-page .ampacity-table th {
    font-size: 9px;
  }

  .aluminum-page .ampacity-table th,
  .aluminum-page .ampacity-table td {
    padding: 6px 4px;
  }
}

@media (max-width: 520px) {
  .site-header {
    min-height: 68px;
  }

  .brand img {
    width: 112px;
  }

  .site-nav {
    inset-block-start: 68px;
  }

  .hero {
    min-height: 640px;
  }

  .button {
    width: 100%;
  }

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

  .spec-list li {
    grid-template-columns: 1fr;
  }

  .aluminum-page .ampacity-table {
    font-size: 9px;
  }

  .aluminum-page .ampacity-table th,
  .aluminum-page .ampacity-table td {
    padding: 5px 3px;
  }

  .site-footer {
    display: grid;
  }
}