:root {
  --coal: #171b1f;
  --navy: #0f2a44;
  --gold: #f57c00;
  --gold-dark: #c25e00;
  --white: #ffffff;
  --paper: #f6f7f8;
  --border: #e5e7ea;
  --mid: #5c626a;
  --light: #8a9096;
  --hero-overlay: linear-gradient(to right, rgba(15,42,68,.82) 0%, rgba(15,42,68,.42) 48%, rgba(15,42,68,.12) 100%);
  --hero-h: 460px; /* batch F: fixed uniform content-hero height (was clamp 300–350 min-height, content stretched it 361–593) */
  --hero-pad-x: clamp(22px, 4.5vw, 60px);
  --hero-pad-y: clamp(26px, 3.5vw, 40px);
  --hero-title-size: clamp(30px, 3.4vw, 46px);
  --hero-title-lh: 1.12;
  --hero-desc-size: 15px;
  --hero-desc-lh: 1.6;
  --hero-title-size-m: 28px;
  --hero-desc-size-m: 14px;
  --btn-h: 44px;
  --btn-pad-x: 24px;
  --btn-radius: 6px;
  --btn-font-size: 14px;
  --btn-font-weight: 700;
  --font: Inter, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--coal);
  background: #fff;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.skip-link { position: absolute; left: -999px; top: 0; }
.skip-link:focus { left: 12px; z-index: 999; background: #fff; padding: 8px; }

.top-contact-bar {
  min-height: 48px;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 0 clamp(18px, 4vw, 54px);
  font-size: 14px;
}
.top-contact-bar div { display: flex; gap: 18px; align-items: center; }
.top-search { display: flex; align-items: center; gap: 4px; }
.top-search input {
  min-height: 32px;
  border: 1px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.12);
  color: #fff;
  padding: 0 10px;
  border-radius: 4px;
}
.top-search input::placeholder { color: rgba(255,255,255,.78); }
.top-search button { min-height: 32px; border: 0; border-radius: 4px; padding: 0 12px; background: var(--gold); color: #fff; }

.site-header {
  min-height: 52px;
  background: var(--gold);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(18px, 4vw, 54px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.brand { display: flex; align-items: center; }
.nav-logo-img { height: 34px; width: auto; max-width: 300px; object-fit: contain; }
.main-nav { display: flex; align-items: center; gap: 22px; font-weight: 700; }
.main-nav a { min-height: 52px; display: inline-flex; align-items: center; }
.nav-cta {
  background: var(--navy);
  padding: 0 18px;
  border-radius: 4px;
}
.nav-toggle { display: none; background: transparent; border: 0; width: 42px; height: 42px; }
.nav-toggle span { display: block; height: 2px; background: #fff; margin: 6px 0; }

.btn, .btn-industrial {
  min-height: var(--btn-h);
  padding: 0 var(--btn-pad-x);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--btn-radius);
  font-size: var(--btn-font-size);
  font-weight: var(--btn-font-weight);
  border: 1.5px solid transparent;
  cursor: pointer;
}
.btn--primary { background: var(--gold); color: #fff; border-color: var(--gold); }
.btn--primary:hover { background: var(--gold-dark); border-color: var(--gold-dark); }
.btn--outline { color: var(--coal); border-color: var(--coal); background: transparent; }
.btn--outline-on-dark { color: #fff; border-color: rgba(255,255,255,.72); background: rgba(255,255,255,.08); }

.hero-banner {
  position: relative;
  height: var(--hero-h);
  padding: var(--hero-pad-y) var(--hero-pad-x);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--hero-overlay), var(--hero-img, none) center / cover no-repeat #0a1626;
}
.hero-inner { max-width: 650px; color: #fff; position: relative; z-index: 1; }
.hero-eyebrow {
  margin: 0 0 10px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.hero-title {
  margin: 0;
  color: #fff;
  font-size: var(--hero-title-size);
  line-height: var(--hero-title-lh);
  font-weight: 900;
  letter-spacing: 0;
}
.hero-desc {
  margin: 16px 0 0;
  color: rgba(255,255,255,.86);
  font-size: var(--hero-desc-size);
  line-height: var(--hero-desc-lh);
  max-width: 620px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }

.content-band, .page-layout, .content-block {
  padding: clamp(34px, 5vw, 72px) clamp(20px, 5vw, 72px);
}
.content-wrap, .page-main, .blog-article-layout, .footer-grid {
  max-width: 1280px;
  margin: 0 auto;
}
.content-block {
  background: #fff;
}
.content-block h1, .page-main h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 3.6vw, 48px);
  line-height: 1.16;
}
.content-block h2 { font-size: clamp(22px, 2.4vw, 34px); line-height: 1.2; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.feature-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}
.feature-card img { width: 100%; height: 220px; object-fit: cover; }
.feature-card h2, .feature-card p { margin-left: 18px; margin-right: 18px; }
.feature-card p { color: var(--mid); margin-bottom: 22px; }

.blog-article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 42px;
}
.blog-article-main {
  max-width: 820px;
}
.blog-article-aside {
  align-self: start;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 22px;
}
.blog-article-aside a {
  display: block;
  margin-top: 12px;
  color: #fff;
  font-weight: 800;
}

/* Product detail: distilled from product-industrial.css, with the H1 fix. */
.container { max-width: 1400px; margin: 0 auto; padding: 0 48px; }
.section-num {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--light);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-num::before, .section-num::after { content: ""; flex: 1; height: 1px; background: #ccc; }
.btn-industrial {
  border-radius: 0;
  border: 2px solid #000;
  background: transparent;
  color: #000;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  transition: all .15s ease;
}
.btn-industrial:hover { background: #000; color: #fff; transform: translateY(-1px); }
.btn-yellow { background: var(--gold); border-color: var(--gold); color: #fff; }
.btn-yellow:hover { background: var(--gold-dark); border-color: var(--gold-dark); }
.prod-hero {
  position: relative;
  min-height: 51vh;
  display: grid;
  grid-template-columns: 52% 48%;
  align-items: center;
  background: #fff;
  overflow: hidden;
}
.prod-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(0,0,0,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0,0,0,.04) 1px, transparent 1px);
  background-size: 60px 60px;
}
.prod-hero .hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center right; opacity: .25; z-index: 0; }
.prod-hero .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(255,255,255,.97) 0%, rgba(255,255,255,.85) 45%, rgba(255,255,255,.1) 100%);
  z-index: 1;
}
.hero-left {
  position: relative;
  z-index: 2;
  padding: 36px 40px 36px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-category {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: rgba(0,0,0,.45);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.hero-category::before { content: ""; width: 36px; height: 2px; background: var(--gold); display: block; }
/* Product hero is a light/white background, so the shared .hero-crumbs (white text) needs a dark override here. */
.prod-hero .hero-crumbs, .prod-hero .hero-crumbs a { color: rgba(0,0,0,.5); }
.hero-model {
  margin: 0 0 12px;
  font-size: clamp(48px, 6vw, 80px);
  font-weight: 800;
  color: #000;
  letter-spacing: 0;
  line-height: .9;
}
.hero-type {
  font-size: clamp(13px, 1.4vw, 18px);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-vline { width: 2px; height: 32px; background: linear-gradient(to bottom, var(--gold), transparent); margin-bottom: 24px; }
.prod-hero .hero-desc { color: #555; max-width: 560px; margin-bottom: 20px; }
.hero-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-right {
  position: relative;
  z-index: 2;
  height: 100%;
  min-height: clamp(420px, 52vw, 620px);
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding: 36px clamp(20px, 3vw, 44px) 36px 16px;
}
.hero-img-wrap { width: 100%; max-width: 720px; display: flex; flex-direction: column; }
.hero-img-box {
  width: 100%;
  flex: 1 1 auto;
  padding: clamp(14px, 1.8vw, 28px);
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.hero-img-box img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.hero-img-label {
  position: absolute;
  left: 18px;
  top: 14px;
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #777;
}
.hero-corner-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid #000;
  border-top: 1px solid #000;
  margin-top: 0;
}
.hq-item { padding: 12px 10px; border-right: 1px solid #000; background: #fff; }
.hq-item:last-child { border-right: 0; }
.hq-name { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: #777; }
.hq-val { margin-top: 4px; font-size: 13px; font-weight: 800; color: #000; }
.specs-section, .prod-section, .cta-section { padding: clamp(42px, 5vw, 76px) 0; }
.specs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 24px;
}
.specs-grid-single {
  grid-template-columns: minmax(0, 1fr);
}
.specs-stack {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 24px;
}
.specs-col {
  width: 100%;
  border: 1px solid #000;
  background: #fff;
}
.spec-group-title {
  padding: 12px 16px;
  background: #000;
  color: #fff;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.spec-row { display: grid; grid-template-columns: 44% 56%; border-top: 1px solid #d7d7d7; }
.spec-row span, .spec-row strong { padding: 12px 16px; font-size: 14px; }
.spec-row span { color: #666; border-right: 1px solid #d7d7d7; }
.gallery-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.gallery-thumb {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid #ddd;
  cursor: zoom-in;
}
.gallery-thumb img,
.gallery-grid > img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .22s ease;
}
.gallery-thumb:hover img,
.gallery-thumb:focus-visible img {
  transform: scale(1.04);
}
.gallery-thumb:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}
.product-lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: none;
  place-items: center;
  padding: clamp(18px, 4vw, 56px);
  background: rgba(5, 12, 20, .88);
}
.product-lightbox.open {
  display: grid;
}
.product-lightbox-frame {
  position: relative;
  display: grid;
  width: min(1120px, 92vw);
  max-height: 88vh;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 12px;
}
.product-lightbox-image {
  width: 100%;
  max-height: calc(88vh - 48px);
  object-fit: contain;
  background: #fff;
  box-shadow: 0 24px 80px rgba(0,0,0,.42);
}
.product-lightbox-caption {
  min-height: 24px;
  color: rgba(255,255,255,.82);
  font-size: 13px;
  text-align: center;
}
.product-lightbox-close,
.product-lightbox-nav {
  position: absolute;
  display: grid;
  place-items: center;
  color: #fff;
  background: rgba(0,0,0,.48);
  border: 1px solid rgba(255,255,255,.32);
  border-radius: 999px;
  cursor: pointer;
}
.product-lightbox-close {
  top: -18px;
  right: -18px;
  width: 44px;
  height: 44px;
  font-size: 28px;
  line-height: 1;
}
.product-lightbox-nav {
  top: 50%;
  width: 48px;
  height: 64px;
  transform: translateY(-50%);
  font-size: 34px;
}
.product-lightbox-prev { left: -24px; }
.product-lightbox-next { right: -24px; }
.product-lightbox-close:hover,
.product-lightbox-close:focus-visible,
.product-lightbox-nav:hover,
.product-lightbox-nav:focus-visible {
  background: var(--gold);
  outline: 0;
}
.cta-section { background: #111; color: #fff; text-align: center; }
.cta-section p { color: rgba(255,255,255,.78); max-width: 720px; margin: 12px auto 0; }
.cta-btns { display: flex; justify-content: center; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

.quote-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  max-width: 920px;
  margin: 0 auto;
}
.quote-form label { font-size: 13px; font-weight: 700; color: var(--coal); }
.quote-form input, .quote-form select, .quote-form textarea {
  width: 100%;
  min-height: 44px;
  margin-top: 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
}
.quote-form .full, .quote-form button { grid-column: 1 / -1; }
.quote-form textarea { min-height: 130px; }
.quote-form button {
  min-height: 48px;
  border: 0;
  border-radius: 6px;
  background: var(--gold);
  color: #fff;
  font-weight: 800;
}

.site-footer {
  background: var(--navy);
  color: #fff;
  padding: 44px clamp(20px, 5vw, 72px) 72px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(4, 1fr); gap: 28px; }
.footer-grid h2 { font-size: 16px; }
.footer-grid a { display: block; color: rgba(255,255,255,.82); margin-top: 8px; }
.mobile-bottom-bar { display: none; }

@media (max-width: 980px) {
  .top-contact-bar { display: none; }
  .site-header { position: relative; }
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--gold);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 18px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { min-height: 42px; }
  .hero-banner {
    display: flex;
    flex-direction: column;
    height: auto; /* batch F: desktop fixes height 460; mobile stays auto (stacked image+text) */
    padding: 0;
    background: #0a1626;
  }
  .hero-banner::before {
    content: "";
    width: 100%;
    aspect-ratio: 16 / 5;
    background: var(--hero-img, none) center / contain no-repeat #0a1626;
  }
  .hero-inner { width: 100%; padding: var(--hero-pad-y) var(--hero-pad-x); }
  .hero-title { font-size: var(--hero-title-size-m); }
  .hero-desc { font-size: var(--hero-desc-size-m); }
  .card-grid, .blog-article-layout, .footer-grid, .quote-form { grid-template-columns: 1fr; }
  .specs-grid { grid-template-columns: 1fr; }
  .prod-hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-right { display: none; }
  .hero-left { padding: 32px 20px; }
  .container { padding: 0 20px; }
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-lightbox-nav {
    width: 42px;
    height: 54px;
  }
  .product-lightbox-prev { left: 8px; }
  .product-lightbox-next { right: 8px; }
  .product-lightbox-close {
    top: 8px;
    right: 8px;
  }
  .btn-industrial { width: 100%; min-height: 46px; }
  .mobile-bottom-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 80;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: #fff;
    border-top: 1px solid var(--border);
  }
  .mobile-bottom-bar a { padding: 9px 6px; text-align: center; font-size: 12px; font-weight: 800; color: var(--coal); }
  body { padding-bottom: 44px; }
}

@media (max-width: 520px) {
  .hero-actions, .cta-btns { flex-direction: column; }
  .btn { width: 100%; }
  .gallery-grid { grid-template-columns: 1fr; }
}

.hl-carousel {
  position: relative;
  width: 100%;
  overflow: hidden;
}
.hl-carousel-track {
  display: flex;
  width: 300%;
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.hl-carousel-slide {
  width: 33.3333%;
  box-sizing: border-box;
  flex: 0 0 33.3333%;
}
.hl-carousel-dots {
  position: absolute;
  bottom: 18px;
  left: 50%;
  z-index: 10;
  display: flex;
  gap: 8px;
  transform: translateX(-50%);
}
.hl-dot {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255,255,255,.4);
  cursor: pointer;
  transition: background .2s, transform .2s;
}
.hl-dot.hl-dot-on {
  background: var(--gold);
  transform: scale(1.4);
}
.hl-carousel-arrow {
  position: absolute;
  top: 50%;
  z-index: 10;
  display: flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1.5px solid rgba(255,255,255,.45);
  border-radius: 50%;
  background: rgba(255,255,255,.15);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
}
.hl-arrow-prev { left: 22px; }
.hl-arrow-next { right: 22px; }
.hl-carousel-arrow:hover { background: rgba(255,255,255,.3); }

@media (max-width: 640px) {
  .hl-carousel-arrow { display: none; }
}