:root {
  --ink: #071f36;
  --navy: #0b3561;
  --blue: #134f8e;
  --steel: #526579;
  --line: #d8e2eb;
  --soft: #f4f7fa;
  --white: #ffffff;
  --orange: #f28a21;
  --orange-dark: #c85c12;
  --shadow: 0 18px 42px rgba(7, 31, 54, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.5;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  min-height: 78px;
  padding: 10px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand img {
  width: 220px;
  height: auto;
}

.main-nav {
  display: flex;
  justify-content: center;
  gap: 26px;
  font-size: 14px;
  font-weight: 700;
  color: var(--steel);
}

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

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.header-cta,
.button.primary {
  color: var(--white);
  background: var(--orange);
}

.button.primary:hover {
  background: var(--orange-dark);
}

.button.secondary {
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
}

.menu-button {
  display: none;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--white);
  font-weight: 800;
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: calc(100vh - 78px);
  padding: 78px clamp(18px, 7vw, 104px) 96px;
  overflow: hidden;
  color: var(--white);
}

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

.hero-media {
  background: url("assets/hero.jpg") center / cover no-repeat;
  transform: scale(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(4, 17, 32, 0.84) 0%, rgba(4, 17, 32, 0.58) 46%, rgba(4, 17, 32, 0.18) 100%),
    linear-gradient(0deg, rgba(4, 17, 32, 0.28), rgba(4, 17, 32, 0.08));
}

.hero-content {
  position: relative;
  width: min(760px, 100%);
  min-width: 0;
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--orange);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin: 0;
  font-size: 62px;
  line-height: 1.04;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 650px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 19px;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.quick-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}

.quick-strip div {
  padding: 28px clamp(18px, 4vw, 56px);
  background: var(--soft);
}

.quick-strip strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}

.quick-strip span {
  color: var(--steel);
  font-size: 14px;
}

.section {
  padding: 86px clamp(18px, 6vw, 88px);
}

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

.section-head {
  max-width: 840px;
  margin-bottom: 34px;
}

.section-head.compact {
  margin-bottom: 0;
}

h2 {
  margin: 0;
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 21px;
  line-height: 1.2;
}

.section-head p:not(.eyebrow),
.product-card p,
.project-feature p,
.factory-layout p,
.about-layout p,
.contact-card p,
.contact-details dd,
.video-copy p {
  color: var(--steel);
}

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

.product-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 24px rgba(7, 31, 54, 0.05);
}

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

.product-card div {
  padding: 22px;
}

.factory-layout,
.about-layout,
.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 42px;
  align-items: center;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  color: var(--ink);
  font-weight: 700;
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--orange);
  content: "✓";
}

.factory-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.factory-gallery img,
.project-feature img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
}

.project-layout {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.project-feature {
  display: grid;
  gap: 18px;
}

.video-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 36px;
  align-items: center;
  padding: 78px clamp(18px, 6vw, 88px);
  color: var(--white);
  background: var(--ink);
}

.video-copy p {
  color: rgba(255, 255, 255, 0.76);
}

.video-section video {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: #000;
}

.contact-section {
  padding: 86px clamp(18px, 6vw, 88px);
  background: linear-gradient(135deg, #eef4f8 0%, #ffffff 60%);
}

.contact-card,
.contact-details {
  padding: 34px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.contact-card h2 {
  max-width: 620px;
}

.contact-details img {
  width: 280px;
  margin-bottom: 28px;
}

.contact-details dl {
  margin: 0;
}

.contact-details dt {
  margin-top: 18px;
  font-size: 13px;
  font-weight: 900;
  color: var(--blue);
  text-transform: uppercase;
}

.contact-details dd {
  margin: 6px 0 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: space-between;
  padding: 26px clamp(18px, 6vw, 88px);
  color: rgba(255, 255, 255, 0.78);
  background: #06192c;
  font-size: 14px;
}

.floating-whatsapp {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  color: var(--white);
  background: #22a955;
  box-shadow: var(--shadow);
  font-size: 14px;
  font-weight: 900;
}

@media (max-width: 1080px) {
  .site-header {
    grid-template-columns: auto auto auto;
    justify-content: space-between;
  }

  .brand img {
    width: 190px;
  }

  .main-nav {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 76px;
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 10px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

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

  .main-nav a {
    padding: 13px 10px;
  }

  .menu-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .header-cta {
    display: none;
  }

  h1 {
    font-size: 48px;
  }

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

  .factory-layout,
  .about-layout,
  .contact-section,
  .video-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .brand img {
    width: 154px;
  }

  .hero {
    min-height: 650px;
    padding: 72px 18px 80px;
  }

  .hero-overlay {
    background: linear-gradient(90deg, rgba(4, 17, 32, 0.86) 0%, rgba(4, 17, 32, 0.62) 100%);
  }

  h1 {
    font-size: 32px;
    max-width: 340px;
  }

  h2 {
    font-size: 30px;
  }

  .hero-copy {
    font-size: 17px;
    max-width: 340px;
  }

  .hero .eyebrow {
    max-width: 340px;
    font-size: 12px;
  }

  .quick-strip,
  .product-grid,
  .project-layout,
  .factory-gallery {
    grid-template-columns: 1fr;
  }

  .section,
  .video-section,
  .contact-section {
    padding: 60px 18px;
  }

  .contact-card,
  .contact-details {
    padding: 24px;
  }

  .contact-details img {
    width: 100%;
    max-width: 280px;
  }

  .button {
    width: 100%;
  }

  .floating-whatsapp {
    right: 18px;
    left: auto;
    min-width: 132px;
  }
}