:root {
  --ink: oklch(17% 0.03 245);
  --ink-strong: oklch(10% 0.03 245);
  --paper: oklch(97% 0.006 235);
  --paper-soft: oklch(93% 0.01 235);
  --steel: oklch(54% 0.025 240);
  --line: oklch(85% 0.015 235);
  --blue: oklch(62% 0.16 235);
  --blue-strong: oklch(53% 0.18 238);
  --signal: oklch(77% 0.14 94);
  --green: oklch(62% 0.08 160);
  --radius: 6px;
  --shadow: 0 24px 70px oklch(10% 0.03 245 / 0.18);
  --font: "Aptos", "Segoe UI Variable", "Segoe UI", Arial, sans-serif;
  --page-x: clamp(18px, 5vw, 82px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font);
  letter-spacing: 0;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 18px;
  top: -48px;
  z-index: 50;
  padding: 12px 16px;
  border-radius: var(--radius);
  color: oklch(98% 0.006 235);
  background: var(--blue-strong);
  transition: top 180ms ease;
}

.skip-link:focus {
  top: 18px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 18px clamp(18px, 4vw, 58px);
  color: oklch(96% 0.01 235);
  background: linear-gradient(180deg, oklch(9% 0.03 245 / 0.88), oklch(9% 0.03 245 / 0));
  transition: background 240ms ease, padding 240ms ease;
}

.site-header.is-scrolled {
  background: oklch(10% 0.03 245 / 0.94);
  padding-block: 12px;
  box-shadow: 0 16px 50px oklch(5% 0.03 245 / 0.24);
}

.subpage .site-header {
  background: oklch(10% 0.03 245 / 0.94);
  box-shadow: 0 16px 50px oklch(5% 0.03 245 / 0.24);
}

.brand img {
  width: clamp(160px, 15vw, 220px);
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: clamp(16px, 2vw, 30px);
  font-size: 14px;
  color: oklch(88% 0.015 235);
}

.site-nav a {
  position: relative;
  padding: 10px 0;
}

.site-nav a.is-active,
.site-nav summary.is-active {
  color: oklch(98% 0.006 235);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  background: var(--blue);
  transition: transform 220ms ease;
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.site-nav details {
  position: relative;
}

.site-nav summary {
  list-style: none;
  position: relative;
  padding: 10px 18px 10px 0;
  cursor: pointer;
  color: oklch(88% 0.015 235);
}

.site-nav summary::-webkit-details-marker {
  display: none;
}

.site-nav summary::after {
  content: "▾";
  display: inline-block;
  margin-left: 8px;
  color: var(--blue);
  transition: transform 180ms ease;
}

.site-nav details[open] summary::after {
  transform: rotate(180deg);
}

.nav-submenu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  display: grid;
  gap: 2px;
  min-width: 230px;
  padding: 10px;
  border: 1px solid oklch(90% 0.01 235 / 0.16);
  border-radius: var(--radius);
  background: oklch(10% 0.03 245 / 0.98);
  box-shadow: 0 24px 50px oklch(5% 0.03 245 / 0.24);
}

.nav-submenu a {
  padding: 10px 12px;
  border-radius: calc(var(--radius) - 2px);
}

.nav-submenu a:hover {
  background: oklch(98% 0.005 235 / 0.06);
}

.site-nav summary::after {
  content: "v";
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.ghost-link {
  color: oklch(88% 0.012 235);
  font-size: 14px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: oklch(98% 0.006 235);
  background: var(--blue-strong);
  font-weight: 700;
  box-shadow: 0 14px 34px oklch(43% 0.16 238 / 0.26);
  transition: transform 200ms ease, background 200ms ease, border-color 200ms ease;
}

.button:hover {
  transform: translateY(-2px);
  background: var(--blue);
}

.button:active,
.nav-toggle:active,
.nav-submenu a:active {
  transform: translateY(1px);
}

.button-small {
  min-height: 38px;
  padding: 0 16px;
  font-size: 14px;
}

.button-secondary {
  border-color: oklch(92% 0.012 235 / 0.28);
  background: oklch(12% 0.03 245 / 0.38);
  box-shadow: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid oklch(90% 0.01 235 / 0.24);
  border-radius: var(--radius);
  background: oklch(12% 0.03 245 / 0.36);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: oklch(96% 0.01 235);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  align-items: end;
  gap: clamp(24px, 4vw, 64px);
  padding: 150px clamp(18px, 5vw, 82px) clamp(34px, 7vw, 82px);
  overflow: hidden;
  color: oklch(97% 0.01 235);
  background: oklch(10% 0.03 245);
}

.page-hero {
  position: relative;
  min-height: 64svh;
  display: grid;
  align-items: end;
  padding: 150px clamp(18px, 5vw, 82px) clamp(34px, 6vw, 76px);
  overflow: hidden;
  color: oklch(97% 0.01 235);
  background:
    linear-gradient(90deg, oklch(7% 0.03 245 / 0.93), oklch(7% 0.03 245 / 0.68) 44%, oklch(8% 0.03 245 / 0.26) 100%),
    oklch(10% 0.03 245);
  background-size: cover;
  background-position: center;
}

body.subpage {
  background: var(--paper);
}

body.subpage .page-hero {
  box-shadow: inset 0 -1px 0 oklch(94% 0.005 235 / 0.06);
}

.page-tbr .page-hero {
  background-image: url("/website-assets/banners/blue-ocean-tbr-tires-banner.webp");
}

.page-otr .page-hero {
  background-image: url("/website-assets/banners/blue-ocean-otr-tires-banner.webp");
}

.page-applications .page-hero {
  background-image: url("/website-assets/banners/blue-ocean-applications-banner.webp");
}

.page-oem-wholesale .page-hero {
  background-image: url("/website-assets/banners/blue-ocean-oem-wholesale-banner.webp");
}

.page-about .page-hero {
  background-image: url("/website-assets/banners/blue-ocean-about-banner.webp");
}

.page-shipment-cases .page-hero {
  background-image: url("/website-assets/banners/blue-ocean-shipment-cases-banner.webp");
}

.page-resources .page-hero,
.page-news .page-hero,
.page-blog .page-hero,
.page-videos .page-hero,
.page-youtube .page-hero {
  background-image: url("/website-assets/banners/blue-ocean-resources-banner.webp");
}

.page-contact .page-hero {
  background-image: url("/website-assets/banners/blue-ocean-contact-banner.webp");
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, oklch(7% 0.03 245 / 0.2), oklch(7% 0.03 245 / 0.78));
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(oklch(94% 0.01 235 / 0.08) 1px, transparent 1px),
    linear-gradient(90deg, oklch(94% 0.01 235 / 0.06) 1px, transparent 1px);
  background-size: 120px 90px;
  opacity: 0.28;
}

.page-hero__content {
  position: relative;
  z-index: 1;
  max-width: 940px;
}

.page-hero h1 {
  max-width: 760px;
  margin: 0;
  line-height: 1.08;
  text-wrap: balance;
}

.page-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 0 0 22px;
  color: oklch(88% 0.016 235);
  font-size: 14px;
}

.page-hero__meta span {
  padding: 8px 12px;
  border: 1px solid oklch(92% 0.012 235 / 0.16);
  border-radius: var(--radius);
  background: oklch(12% 0.03 245 / 0.36);
}

.page-hero .hero-copy {
  max-width: 760px;
  color: oklch(89% 0.016 235);
}

.page-hero .hero-actions {
  margin-top: 28px;
}

.detail-section {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 1.05fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: center;
}

.detail-section.reverse {
  grid-template-columns: minmax(300px, 1.05fr) minmax(0, 0.95fr);
}

.detail-section.reverse .detail-media {
  order: 2;
}

.detail-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.detail-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-copy p {
  max-width: 62ch;
}

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

.benefit-grid article,
.stat-grid article,
.timeline-item,
.resource-card,
.post-item,
.video-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.004 235);
}

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

.stat-grid strong {
  display: block;
  margin-bottom: 12px;
  color: var(--blue-strong);
  font-size: 18px;
}

.spec-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.004 235);
}

.spec-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.spec-table th,
.spec-table td {
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  color: var(--ink-strong);
  background: var(--paper-soft);
}

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

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.timeline-item .step-index {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  background: oklch(12% 0.03 245);
  color: oklch(96% 0.01 235);
  font-weight: 800;
}

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

.gallery-grid figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.004 235);
}

.gallery-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: white;
}

.gallery-grid figcaption {
  padding: 14px 16px 16px;
  color: var(--steel);
  font-size: 14px;
}

.resource-feed,
.post-feed,
.video-feed {
  display: grid;
  gap: 14px;
}

.resource-card,
.post-item,
.video-card {
  display: grid;
  gap: 12px;
}

.post-item .post-meta,
.video-card .post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  color: var(--steel);
  font-size: 14px;
}

.resource-card .chip,
.post-item .chip,
.video-card .chip {
  width: fit-content;
}

.resource-card a,
.post-item a,
.video-card a {
  color: var(--blue-strong);
  font-weight: 800;
}

.article-body {
  max-width: 920px;
}

.article-body h2 {
  margin: 36px 0 14px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.05;
}

.article-body p,
.article-body li {
  color: var(--steel);
  font-size: clamp(17px, 1.35vw, 19px);
  line-height: 1.75;
}

.article-body ul,
.article-body ol {
  display: grid;
  gap: 10px;
  margin: 18px 0 26px;
  padding-left: 22px;
}

.article-body .article-note {
  margin: 30px 0;
  padding: 22px;
  border-left: 4px solid var(--blue-strong);
  background: oklch(98% 0.004 235);
  color: var(--ink);
  font-weight: 750;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.98fr) minmax(330px, 1.02fr);
  gap: clamp(24px, 6vw, 78px);
  align-items: start;
}

.contact-panel {
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.004 235);
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.contact-list a,
.contact-list span {
  display: block;
  color: var(--ink);
  font-weight: 750;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.form-grid .span-2 {
  grid-column: 1 / -1;
}

.page-note {
  max-width: 66ch;
  margin-top: 18px;
  color: var(--steel);
}

.content-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.content-links a {
  padding: 12px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.004 235);
  font-weight: 750;
}

.content-links a:hover {
  background: var(--paper-soft);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.faq-item {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.004 235);
}

.faq-item strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink-strong);
}

.cta-strip {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: center;
  padding: 28px clamp(18px, 5vw, 82px);
  background: oklch(12% 0.03 245);
  color: oklch(96% 0.01 235);
}

.cta-strip p {
  max-width: 66ch;
  color: oklch(82% 0.015 235);
}

.hero-video,
.hero-shade,
.hero-grid {
  position: absolute;
  inset: 0;
}

.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.82;
}

.hero-shade {
  background:
    linear-gradient(90deg, oklch(7% 0.03 245 / 0.92) 0%, oklch(8% 0.03 245 / 0.72) 46%, oklch(8% 0.03 245 / 0.36) 100%),
    linear-gradient(0deg, oklch(7% 0.03 245 / 0.72), transparent 46%);
}

.hero-grid {
  opacity: 0.22;
  background-image:
    linear-gradient(oklch(94% 0.01 235 / 0.16) 1px, transparent 1px),
    linear-gradient(90deg, oklch(94% 0.01 235 / 0.14) 1px, transparent 1px);
  background-size: 120px 90px;
  mask-image: linear-gradient(90deg, transparent, black 35%, transparent);
}

.hero-content,
.hero-panel {
  position: relative;
  z-index: 2;
}

.hero-content {
  grid-column: 1;
  justify-self: start;
  min-width: 0;
  width: min(100%, 720px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--signal);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(42px, 5.2vw, 88px);
  line-height: 0.95;
  letter-spacing: 0;
  text-wrap: balance;
}

.hero-copy {
  max-width: 38rem;
  margin: 26px 0 0;
  color: oklch(88% 0.018 235);
  font-size: clamp(17px, 1.35vw, 21px);
  line-height: 1.55;
}

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

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
}

.hero-proof span {
  padding: 10px 13px;
  border: 1px solid oklch(92% 0.012 235 / 0.22);
  border-radius: var(--radius);
  background: oklch(12% 0.035 245 / 0.44);
  color: oklch(90% 0.012 235);
  font-size: 14px;
}

.hero-panel {
  grid-column: 2;
  justify-self: end;
  width: min(100%, 380px);
  align-self: end;
  padding: 24px;
  border: 1px solid oklch(88% 0.018 235 / 0.2);
  border-radius: var(--radius);
  background: oklch(10% 0.03 245 / 0.68);
  backdrop-filter: blur(10px);
}

.panel-label,
.product-code,
.number {
  color: var(--blue);
  font-weight: 800;
}

.hero-panel strong {
  display: block;
  margin-top: 12px;
  font-size: 22px;
  line-height: 1.15;
}

.hero-panel p {
  color: oklch(82% 0.015 235);
  line-height: 1.55;
}

.hero-panel a {
  color: var(--signal);
  font-weight: 800;
}

section {
  padding: clamp(62px, 9vw, 128px) clamp(18px, 5vw, 82px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(180px, 300px) minmax(0, 820px);
  gap: clamp(24px, 5vw, 80px);
  margin-bottom: clamp(34px, 5vw, 72px);
}

.section-heading.narrow {
  display: block;
  max-width: 850px;
}

h2,
h3,
p {
  margin-top: 0;
}

h2 {
  margin-bottom: 0;
  color: var(--ink-strong);
  font-size: clamp(34px, 4vw, 66px);
  line-height: 1.02;
  text-wrap: balance;
}

h3 {
  color: var(--ink-strong);
  font-size: clamp(22px, 2vw, 34px);
  line-height: 1.08;
  text-wrap: balance;
}

p {
  color: var(--steel);
  line-height: 1.65;
}

.page-section {
  padding: clamp(58px, 8vw, 118px) clamp(18px, 5vw, 82px);
  scroll-margin-top: 92px;
}

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

.page-wrap {
  max-width: 1320px;
  margin: 0 auto;
}

.section-lead {
  max-width: 72ch;
  margin: 0 0 22px;
}

.hero-stack {
  display: grid;
  gap: 22px;
}

.hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-chips span,
.chip {
  padding: 10px 13px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: oklch(98% 0.004 235);
  color: var(--ink);
  font-size: 14px;
  font-weight: 750;
}

.subpage .hero-chips span,
.subpage .chip {
  background: oklch(98% 0.004 235 / 0.04);
  color: oklch(92% 0.012 235);
  border-color: oklch(92% 0.012 235 / 0.16);
}

.split-lines {
  background: var(--paper);
}

.line-grid {
  display: grid;
  gap: 22px;
}

.line-feature {
  display: grid;
  grid-template-columns: minmax(260px, 430px) minmax(0, 1fr);
  min-height: 430px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: oklch(99% 0.004 235);
}

.line-feature-alt {
  grid-template-columns: minmax(0, 1fr) minmax(260px, 430px);
}

.line-feature-alt .line-media {
  order: 2;
}

.line-media {
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, oklch(95% 0.01 235), oklch(88% 0.025 235)),
    repeating-linear-gradient(90deg, transparent 0 44px, oklch(80% 0.02 235 / 0.34) 44px 45px);
}

.line-media img {
  width: min(78%, 330px);
  filter: none;
}

.line-media-link {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
}

.line-media-link img {
  transition: transform 180ms ease, filter 180ms ease;
}

.line-media-link:hover img {
  transform: translateY(-3px) scale(1.015);
  filter: contrast(1.04);
}

.line-media-link:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -10px;
}

.line-content {
  padding: clamp(30px, 5vw, 64px);
  align-self: center;
}

.line-content p {
  max-width: 58ch;
}

.clean-list {
  display: grid;
  gap: 10px;
  margin: 24px 0;
  padding: 0;
  list-style: none;
  color: var(--ink);
}

.clean-list li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 12px;
  background: var(--green);
}

.check-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.check-list li::before {
  content: "•";
  margin-right: 10px;
  color: var(--blue);
}

.text-link {
  color: var(--blue-strong);
  font-weight: 800;
}

.size-band {
  background: oklch(12% 0.03 245);
  color: oklch(96% 0.01 235);
}

.size-band h2,
.size-band h3 {
  color: oklch(97% 0.01 235);
}

.size-band p {
  color: oklch(80% 0.02 235);
}

.size-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px;
}

.size-columns article {
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid oklch(90% 0.01 235 / 0.18);
  border-radius: var(--radius);
  background: oklch(16% 0.035 245);
}

.size-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.size-tags span {
  padding: 11px 13px;
  border-radius: var(--radius);
  color: oklch(94% 0.01 235);
  background: oklch(24% 0.04 245);
  font-weight: 750;
}

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

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

.application-grid article {
  min-height: 390px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.004 235);
}

.application-grid img {
  width: 78%;
  aspect-ratio: 1;
  object-fit: contain;
  margin: 0 auto 12px;
}

.application-media-link {
  display: block;
  width: 78%;
  aspect-ratio: 1;
  margin: 0 auto 12px;
  border-radius: calc(var(--radius) - 2px);
  text-decoration: none;
  cursor: pointer;
}

.application-media-link img {
  display: block;
  width: 100%;
  margin: 0;
  transition: transform 180ms ease, filter 180ms ease;
}

.application-media-link:hover img {
  transform: translateY(-2px);
  filter: contrast(1.03);
}

.application-media-link:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 5px;
}

.application-grid h3 {
  font-size: 24px;
}

.application-grid p {
  font-size: 15px;
}

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

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.why-grid div {
  padding: clamp(24px, 3vw, 38px);
  background: var(--paper);
}

.number {
  display: block;
  margin-bottom: 42px;
  font-size: 14px;
}

.why-grid h3 {
  font-size: 25px;
}

.oem-band {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1.1fr);
  gap: clamp(26px, 6vw, 92px);
  align-items: center;
  background: oklch(14% 0.03 245);
  color: oklch(96% 0.01 235);
}

.oem-band h2 {
  color: oklch(96% 0.01 235);
}

.oem-copy p:not(.eyebrow) {
  max-width: 60ch;
  color: oklch(82% 0.015 235);
}

.oem-visual img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.resources-strip {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: start;
  background: var(--paper);
}

.resource-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.resource-links a {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: oklch(98% 0.004 235);
  font-weight: 800;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: clamp(28px, 6vw, 86px);
  align-items: start;
  color: oklch(96% 0.01 235);
  background:
    linear-gradient(90deg, oklch(8% 0.03 245), oklch(14% 0.04 245)),
    var(--ink);
}

.contact-section h2 {
  color: oklch(98% 0.006 235);
}

.contact-copy p:not(.eyebrow) {
  color: oklch(82% 0.015 235);
}

.contact-methods {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  color: oklch(90% 0.015 235);
}

.contact-methods a {
  color: var(--signal);
  font-weight: 800;
}

.contact-methods span {
  display: block;
  font-weight: 750;
}

.form-notice {
  margin-bottom: 14px;
  padding: 13px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 750;
  line-height: 1.45;
}

.form-notice.success {
  border: 1px solid oklch(76% 0.12 170 / 0.45);
  color: oklch(88% 0.08 170);
  background: oklch(20% 0.045 170 / 0.72);
}

.form-notice.error {
  border: 1px solid oklch(72% 0.15 35 / 0.5);
  color: oklch(88% 0.09 45);
  background: oklch(22% 0.055 35 / 0.76);
}

.form-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.inquiry-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: clamp(22px, 4vw, 36px);
  border: 1px solid oklch(92% 0.012 235 / 0.16);
  border-radius: var(--radius);
  background: oklch(11% 0.03 245 / 0.9);
}

.inquiry-form label {
  display: grid;
  gap: 8px;
  color: oklch(86% 0.015 235);
  font-size: 14px;
  font-weight: 750;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid oklch(86% 0.015 235 / 0.22);
  border-radius: var(--radius);
  color: oklch(96% 0.01 235);
  background: oklch(18% 0.035 245);
  padding: 13px 12px;
}

.inquiry-form textarea {
  resize: vertical;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
  border-color: var(--signal);
  outline: none;
}

.span-2 {
  grid-column: 1 / -1;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding: 42px clamp(18px, 5vw, 82px);
  color: oklch(84% 0.015 235);
  background: oklch(8% 0.03 245);
}

.site-footer img {
  width: 220px;
  margin-bottom: 12px;
}

.site-footer p {
  margin-bottom: 0;
  color: oklch(74% 0.015 235);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  align-content: start;
  justify-content: flex-end;
  gap: 18px;
}

.footer-links .footer-group {
  display: grid;
  gap: 10px;
}

.footer-links .footer-group strong {
  color: oklch(96% 0.01 235);
  font-size: 14px;
}

.footer-links .footer-group a {
  color: oklch(80% 0.015 235);
  font-size: 14px;
}

.footer-links .footer-group span {
  color: oklch(80% 0.015 235);
  font-size: 14px;
}

.footer-links .footer-group a:hover {
  color: oklch(96% 0.01 235);
}

@media (max-width: 1100px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .nav-toggle {
    display: block;
    justify-self: end;
  }

  .site-nav,
  .header-actions {
    display: none;
  }

  .site-nav.is-open {
    display: grid;
    grid-column: 1 / -1;
    justify-content: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid oklch(90% 0.01 235 / 0.16);
    border-radius: var(--radius);
    background: oklch(10% 0.03 245 / 0.96);
  }

  .site-nav.is-open a {
    padding: 13px 8px;
  }

  .site-nav.is-open details {
    padding: 2px 0;
  }

  .site-nav.is-open summary {
    padding: 13px 8px;
  }

  .nav-submenu {
    position: static;
    min-width: 0;
    margin: 0 0 6px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
  }

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

  .hero-panel {
    max-width: 540px;
  }

  .section-heading,
  .resources-strip,
  .contact-section,
  .oem-band,
  .detail-section,
  .cta-strip,
  .contact-grid {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }

  .application-grid,
  .why-grid,
  .faq-grid,
  .benefit-grid,
  .stat-grid,
  .gallery-grid,
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .hero {
    min-height: 100svh;
    padding-top: 128px;
  }

  .hero h1 {
    max-width: 10.8ch;
    font-size: clamp(38px, 11vw, 50px);
    line-height: 0.96;
    overflow-wrap: normal;
  }

  .hero-panel {
    display: none;
  }

  .page-hero,
  .line-feature,
  .line-feature-alt,
  .size-columns,
  .application-grid,
  .why-grid,
  .faq-grid,
  .resource-links,
  .inquiry-form,
  .benefit-grid,
  .stat-grid,
  .gallery-grid,
  .contact-grid,
  .form-grid,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .line-feature-alt .line-media {
    order: 0;
  }

  .application-grid article {
    min-height: unset;
  }

  .site-footer {
    display: grid;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}

.product-catalog-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.58fr) minmax(280px, 0.42fr);
  gap: clamp(28px, 6vw, 88px);
  align-items: end;
  padding: 128px var(--page-x) 42px;
  border-bottom: 1px solid oklch(88% 0.012 235);
  color: oklch(18% 0.04 245);
  background:
    linear-gradient(180deg, oklch(96% 0.008 235), oklch(99% 0.004 235) 72%),
    oklch(98% 0.006 235);
}

.product-catalog-title {
  min-width: 0;
}

.product-catalog-hero .eyebrow {
  margin-bottom: 10px;
  color: oklch(50% 0.16 30);
}

.product-catalog-hero h1 {
  margin: 0;
  max-width: 680px;
  color: oklch(21% 0.055 248);
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.02;
}

.product-catalog-hero p:not(.eyebrow) {
  min-width: 0;
  margin: 0 0 7px;
  max-width: 620px;
  color: oklch(42% 0.02 245);
  font-size: 17px;
  line-height: 1.65;
  overflow-wrap: break-word;
}

.product-browser {
  display: grid;
  grid-template-columns: minmax(210px, 260px) minmax(0, 1fr);
  gap: clamp(24px, 3.2vw, 44px);
  padding: 42px var(--page-x) 96px;
  background: oklch(98% 0.006 240);
  scroll-margin-top: 92px;
}

.product-sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
  max-height: calc(100svh - 118px);
  padding-right: 8px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: oklch(72% 0.02 245) transparent;
}

.product-line-switch {
  display: flex;
  gap: 6px;
  align-items: baseline;
  margin-bottom: 18px;
  font-size: clamp(26px, 2.8vw, 36px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
}

.product-line-switch a {
  color: oklch(76% 0.01 245);
  text-decoration: none;
}

.product-line-switch a.is-active {
  color: oklch(51% 0.2 28);
}

.product-line-switch span {
  color: oklch(86% 0.01 245);
}

.product-sidebar h2 {
  margin: 18px 0 8px;
  color: oklch(24% 0.065 250);
  font-size: 18px;
}

.product-filter-list {
  display: grid;
  gap: 2px;
}

.product-filter-list a {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  color: oklch(58% 0.015 245);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.22;
  text-decoration: none;
}

.product-filter-list a:hover,
.product-filter-list a.is-active {
  border-color: oklch(54% 0.2 28);
  color: oklch(46% 0.2 28);
}

.product-filter-list span {
  color: oklch(62% 0.02 245);
  font-size: 12px;
}

.product-results {
  min-width: 0;
}

.product-results-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 28px;
}

.product-results-head h2 {
  margin: 4px 0 0;
  color: oklch(20% 0.065 250);
  font-size: clamp(30px, 4vw, 48px);
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.product-card {
  min-width: 0;
}

.product-card-image {
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  border: 1px solid oklch(90% 0.01 240);
  background: white;
  overflow: hidden;
  text-decoration: none;
}

.product-card-image img {
  width: 86%;
  height: 86%;
  object-fit: contain;
  transition: transform 180ms ease;
}

.product-card:hover .product-card-image img {
  transform: scale(1.04);
}

.product-card-body {
  padding-top: 14px;
}

.product-card-body h3 {
  margin: 4px 0 8px;
  color: oklch(28% 0.025 245);
  font-size: 22px;
}

.product-card-body h3 a {
  color: inherit;
  text-decoration: none;
}

.product-card-body p {
  margin: 0;
  color: oklch(45% 0.02 245);
}

.product-meta {
  color: oklch(48% 0.17 28) !important;
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.product-inquiry-strip {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  margin-top: 56px;
  padding: 28px;
  background: oklch(14% 0.04 250);
  color: white;
}

.product-inquiry-strip h2 {
  margin: 6px 0 0;
  max-width: 620px;
  font-size: clamp(28px, 4vw, 42px);
}

.product-detail-browser {
  padding-top: 150px;
}

.product-detail {
  min-width: 0;
}

.product-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 20px;
  color: oklch(54% 0.02 245);
  font-weight: 700;
}

.product-breadcrumb a {
  color: oklch(32% 0.075 250);
  text-decoration: none;
}

.product-detail-hero {
  display: grid;
  grid-template-columns: minmax(280px, 460px) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.product-detail-media {
  display: grid;
  place-items: center;
  min-height: 420px;
  border: 1px solid oklch(90% 0.01 240);
  background: white;
}

.product-detail-media img {
  width: min(82%, 390px);
  max-height: 410px;
  object-fit: contain;
}

.product-detail-copy h1 {
  margin: 8px 0 18px;
  color: oklch(25% 0.075 250);
  font-size: clamp(46px, 6vw, 76px);
  line-height: 0.95;
}

.product-detail-copy p:not(.eyebrow) {
  max-width: 660px;
  color: oklch(38% 0.02 245);
  font-size: 18px;
}

.product-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 22px;
}

.product-facts div {
  padding: 14px;
  background: white;
  border: 1px solid oklch(90% 0.01 240);
}

.product-facts dt {
  color: oklch(50% 0.02 245);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.product-facts dd {
  margin: 6px 0 0;
  color: oklch(24% 0.055 250);
  font-weight: 800;
}

.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.product-spec-section {
  margin-top: 56px;
}

.product-spec-section h2 {
  margin-bottom: 18px;
  color: oklch(24% 0.065 250);
  font-size: clamp(28px, 4vw, 44px);
}

.spec-table-wrap {
  overflow-x: auto;
  background: white;
  border: 1px solid oklch(88% 0.01 240);
}

.spec-table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
}

.spec-table th,
.spec-table td {
  padding: 13px 14px;
  border-bottom: 1px solid oklch(88% 0.01 240);
  text-align: left;
  white-space: nowrap;
}

.spec-table th {
  background: oklch(29% 0.11 255);
  color: white;
  font-size: 13px;
  font-weight: 850;
}

.spec-table td {
  color: oklch(28% 0.03 245);
  font-weight: 650;
}

.product-detail-inquiry {
  margin-top: 56px;
}

.social-rail {
  position: fixed;
  right: 18px;
  top: 50%;
  z-index: 80;
  display: grid;
  gap: 4px;
  transform: translateY(-50%);
}

.social-rail__item {
  position: relative;
}

.social-rail__button {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border: 0;
  border-radius: 6px;
  background: oklch(8% 0.02 245);
  color: oklch(97% 0.01 235);
  box-shadow: 0 12px 24px oklch(8% 0.02 245 / 0.16);
  cursor: pointer;
  transition: background 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.social-rail__button svg {
  width: 25px;
  height: 25px;
  fill: currentColor;
}

.social-rail__button:hover,
.social-rail__button:focus-visible,
.social-rail__item:focus-within > .social-rail__button {
  background: var(--blue);
  transform: translateX(-2px);
  box-shadow: 0 16px 30px oklch(45% 0.17 250 / 0.28);
  outline: none;
}

.social-rail__popover {
  position: absolute;
  top: 50%;
  right: calc(100% + 12px);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translate(8px, -50%);
  transition: opacity 160ms ease, transform 160ms ease, visibility 160ms ease;
}

.social-rail__item:hover .social-rail__popover,
.social-rail__item:focus-within .social-rail__popover {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translate(0, -50%);
}

.social-rail__qr,
.social-rail__links {
  border: 1px solid oklch(88% 0.012 235);
  border-radius: 8px;
  background: oklch(98% 0.004 235);
  box-shadow: 0 18px 42px oklch(12% 0.03 245 / 0.2);
}

.social-rail__qr {
  width: 210px;
  padding: 12px;
  text-align: center;
}

.social-rail__qr img {
  display: block;
  width: 100%;
  border-radius: 6px;
}

.social-rail__qr span {
  display: block;
  margin-top: 8px;
  color: var(--ink-strong);
  font-size: 13px;
  font-weight: 800;
}

.social-rail__links {
  display: grid;
  min-width: 138px;
  overflow: hidden;
}

.social-rail__links a {
  padding: 11px 13px;
  color: var(--ink-strong);
  font-size: 14px;
  font-weight: 800;
  text-decoration: none;
}

.social-rail__links a + a {
  border-top: 1px solid var(--line);
}

.social-rail__links a:hover,
.social-rail__links a:focus-visible {
  background: var(--paper-soft);
  color: var(--blue);
  outline: none;
}

@media (max-width: 1080px) {
  .product-catalog-hero {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .product-catalog-hero p:not(.eyebrow) {
    width: 100%;
    max-width: 680px;
  }

  .product-browser,
  .product-detail-hero {
    grid-template-columns: 1fr;
  }

  .product-sidebar {
    position: static;
    max-height: none;
    padding-right: 0;
    overflow: visible;
  }

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

@media (max-width: 760px) {
  .product-catalog-hero {
    padding-top: 118px;
    padding-bottom: 36px;
  }

  .product-catalog-hero h1 {
    font-size: 40px;
  }

  .product-catalog-hero p:not(.eyebrow) {
    max-width: none;
    font-size: 16px;
    line-height: 1.72;
  }

  .product-filter-list a {
    overflow-wrap: anywhere;
  }

  .product-detail-browser {
    padding-top: 128px;
  }

  .product-browser {
    padding-bottom: 64px;
  }

  .product-results-head,
  .product-inquiry-strip {
    display: grid;
    align-items: start;
  }

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

  .product-detail-media {
    min-height: 320px;
  }

  .social-rail {
    right: 10px;
    top: auto;
    bottom: 86px;
    gap: 3px;
    transform: none;
  }

  .social-rail__button {
    width: 44px;
    height: 44px;
    border-radius: 6px;
  }

  .social-rail__button svg {
    width: 22px;
    height: 22px;
  }

  .social-rail__qr {
    width: 180px;
  }
}