:root {
  --red: #c91524;
  --red-dark: #a80f1a;
  --ink: #1d232b;
  --graphite: #2f363f;
  --muted: #69717c;
  --line: #dfe3e8;
  --panel: #f5f6f8;
  --white: #ffffff;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  background: var(--white);
  line-height: 1.6;
}

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

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

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 0 32px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  width: 390px;
  max-height: 76px;
  height: auto;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  padding: 12px 14px;
  color: var(--graphite);
  font-size: 14px;
  font-weight: 700;
}

.main-nav a:hover {
  color: var(--red);
}

.lang-toggle {
  margin-left: 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--graphite);
  padding: 8px 12px;
  font-weight: 800;
  cursor: pointer;
}

.lang-toggle:hover {
  border-color: var(--red);
  color: var(--red);
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background: var(--ink);
}

.section {
  padding: 88px 0;
}

.hero {
  position: relative;
  min-height: 680px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #141922;
  color: var(--white);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(15, 18, 24, 0.9), rgba(15, 18, 24, 0.5)),
    linear-gradient(135deg, rgba(201, 21, 36, 0.35), transparent 42%),
    url("./assets/images/industrial-power-placeholder.svg") center/cover no-repeat;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) 380px;
  gap: 48px;
  align-items: center;
}

.hero-copy h1 {
  max-width: 760px;
  margin: 0 0 22px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.04;
}

.hero-copy p {
  max-width: 650px;
  color: #d9dde3;
  font-size: 18px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 800;
}

.btn.primary {
  color: var(--white);
  background: var(--red);
}

.btn.primary:hover {
  background: var(--red-dark);
}

.btn.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.45);
}

.hero-panel {
  background: linear-gradient(90deg, rgba(35, 41, 49, 0.92), rgba(90, 96, 105, 0.72));
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 0;
  backdrop-filter: blur(10px);
}

.hero-panel div {
  padding: 30px 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

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

.hero-panel span,
.hero-panel strong {
  display: block;
}

.hero-panel span {
  color: #c4cad3;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-panel strong {
  margin-top: 14px;
  color: var(--white);
  font-size: 26px;
  line-height: 1.1;
}

.muted {
  background: var(--panel);
}

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

.metric-grid div {
  min-height: 118px;
  padding: 24px;
  background: var(--white);
}

.metric-grid span {
  display: block;
  color: var(--red);
  font-weight: 900;
}

.metric-grid strong {
  display: block;
  margin-top: 18px;
  font-size: 18px;
}

.two-col {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 72px;
}

h2 {
  margin: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.12;
}

h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.prose p,
.section-head p,
.contact-section p {
  color: var(--muted);
}

.capability-grid,
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 44px;
}

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

.capability-grid article {
  position: relative;
  padding: 28px;
  border-top: 4px solid var(--red);
}

.value-head {
  margin-top: 54px;
}

.value-icon {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border: 1px solid rgba(201, 21, 36, 0.28);
  border-radius: 6px;
  background: #fff5f6;
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.manufacturing-showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 58px;
  padding-top: 48px;
  border-top: 1px solid var(--line);
}

.manufacturing-showcase p {
  color: var(--muted);
}

.manufacturing-copy {
  position: static;
  max-width: 880px;
}

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

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

.factory-media {
  background: #11151b;
}

.factory-media img,
.factory-media video {
  width: 100%;
  height: 250px;
  display: block;
}

.factory-media img,
.factory-media video {
  object-fit: cover;
}

.factory-media img[data-fit="contain"] {
  object-fit: contain;
}

.factory-caption {
  padding: 18px;
}

.factory-caption h3 {
  margin-bottom: 6px;
}

.factory-caption p {
  margin: 0;
  color: var(--muted);
}

.section-head {
  max-width: 760px;
}

.category-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.filter-btn {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--graphite);
  padding: 9px 16px;
  font-weight: 800;
  cursor: pointer;
}

.filter-btn.active {
  border-color: var(--red);
  background: var(--red);
  color: var(--white);
}

.product-card {
  overflow: hidden;
}

.product-media {
  display: grid;
  place-items: center;
  min-height: 210px;
  background: #eef1f4;
}

.product-media img {
  width: 100%;
  height: 210px;
  object-fit: cover;
}

.product-body {
  padding: 24px;
}

.product-category {
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.product-body p,
.solution-card p,
.download-card p {
  color: var(--muted);
}

.spec-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.spec-list span {
  padding: 6px 9px;
  border-radius: 4px;
  background: var(--panel);
  color: var(--graphite);
  font-size: 12px;
  font-weight: 800;
}

.solution-list {
  display: grid;
  margin-top: 34px;
  border-top: 1px solid var(--line);
}

.solution-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.solution-card h3 {
  margin: 0;
  color: var(--ink);
}

.download-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.download-card {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  padding: 22px;
}

.download-type {
  display: inline-flex;
  margin-bottom: 8px;
  padding: 4px 8px;
  border-radius: 4px;
  background: var(--panel);
  color: var(--red);
  font-size: 12px;
  font-weight: 900;
}

.download-card a {
  flex: 0 0 auto;
  color: var(--red);
  font-weight: 900;
}

.contact-section {
  background: linear-gradient(135deg, #ffffff 0%, #ffffff 48%, #f2f4f6 48%, #f2f4f6 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: 70px;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--graphite);
  font-size: 13px;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 12px 13px;
  color: var(--ink);
  font: inherit;
}

.site-footer {
  padding: 34px 0;
  background: #11151b;
  color: #d9dde3;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.footer-grid p {
  margin: 6px 0 0;
  color: #9fa6b1;
}

@media (max-width: 900px) {
  .site-header {
    padding: 0 20px;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

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

  .hero {
    min-height: auto;
    padding: 96px 0;
  }

  .hero-grid,
  .two-col,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .metric-grid,
  .capability-grid,
  .product-grid,
  .manufacturing-showcase,
  .download-list {
    grid-template-columns: 1fr;
  }

  .brand img {
    width: 250px;
    max-height: 58px;
  }

  .factory-gallery {
    grid-template-columns: 1fr;
  }

  .solution-card {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .factory-media img,
  .factory-media video {
    height: 260px;
  }

  .footer-grid {
    flex-direction: column;
  }
}