:root {
  --ink: #17202a;
  --muted: #5d6a75;
  --line: #d9e1e7;
  --paper: #f7f9fb;
  --white: #ffffff;
  --red: #bd1f2d;
  --red-dark: #8f1621;
  --steel: #22313c;
  --green: #13765a;
  --gold: #c89228;
  --shadow: 0 18px 48px rgba(19, 31, 43, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(217, 225, 231, 0.9);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--white);
  background: var(--red);
  border-radius: 4px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 15px;
  line-height: 1.15;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-nav a {
  padding: 9px 12px;
  color: var(--steel);
  border-radius: 4px;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a:hover {
  background: #eef3f6;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--white);
}

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

.hero {
  position: relative;
  min-height: 82vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--steel);
}

.hero > img {
  position: absolute;
  inset: 0;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 14, 19, 0.82), rgba(8, 14, 19, 0.46) 46%, rgba(8, 14, 19, 0.12)),
    linear-gradient(0deg, rgba(8, 14, 19, 0.72), rgba(8, 14, 19, 0.04) 42%);
}

.hero-content {
  position: relative;
  width: min(760px, 100%);
  padding: 0 clamp(20px, 6vw, 72px) clamp(48px, 8vw, 92px);
  color: var(--white);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffd166;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(36px, 6vw, 76px);
  line-height: 1.03;
  letter-spacing: 0;
}

h2 {
  max-width: 780px;
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 21px;
  line-height: 1.22;
}

.hero-copy {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(17px, 2.4vw, 22px);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn,
.social {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 800;
  cursor: pointer;
}

.btn.primary {
  color: var(--white);
  background: var(--red);
  box-shadow: 0 12px 26px rgba(189, 31, 45, 0.24);
}

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

.btn.ghost {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.58);
  background: rgba(255, 255, 255, 0.1);
}

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

.proof-strip div {
  padding: 22px clamp(16px, 3vw, 36px);
  background: var(--white);
}

.proof-strip strong,
.proof-strip span {
  display: block;
}

.proof-strip strong {
  margin-bottom: 4px;
  font-size: 20px;
}

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

.section {
  padding: clamp(56px, 8vw, 104px) clamp(18px, 5vw, 72px);
}

.intro,
.factory,
.contact,
.custom {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}

.section-copy p,
.factory-copy p,
.contact-copy p {
  color: var(--muted);
  font-size: 17px;
}

.intro-media,
.custom-media {
  position: relative;
}

.intro-media img,
.custom-media img,
.dealer-band img {
  height: min(52vw, 520px);
  object-fit: cover;
  border-radius: 6px;
  box-shadow: var(--shadow);
}

.media-note {
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: min(280px, calc(100% - 36px));
  padding: 18px;
  color: var(--white);
  background: rgba(23, 32, 42, 0.88);
  border-left: 4px solid var(--gold);
  border-radius: 4px;
}

.media-note strong,
.media-note span {
  display: block;
}

.media-note span {
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.section-heading {
  max-width: 880px;
  margin-bottom: 32px;
}

.section-heading h2 {
  margin-bottom: 0;
}

.products,
.details,
.videos {
  background: var(--white);
}

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

.product-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  box-shadow: 0 12px 28px rgba(19, 31, 43, 0.06);
}

.product-card img {
  height: 250px;
  object-fit: contain;
  background: #f2f5f7;
}

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

.tag {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 5px 9px;
  color: var(--red-dark);
  background: #fff0f1;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.product-card p,
.application-grid p {
  color: var(--muted);
}

.product-card a {
  display: inline-block;
  margin-top: 8px;
  color: var(--green);
  font-weight: 800;
}

.videos {
  border-top: 1px solid var(--line);
}

.video-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: clamp(22px, 4vw, 52px);
  align-items: center;
  margin-bottom: 22px;
}

.video-feature video,
.video-grid video {
  width: 100%;
  background: #11181f;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 14px 34px rgba(19, 31, 43, 0.12);
}

.video-feature video {
  aspect-ratio: 16 / 9;
}

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

.video-grid article {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.video-placeholder::before {
  content: "VIDEO READY";
  display: grid;
  min-height: 150px;
  place-items: center;
  color: var(--white);
  background:
    linear-gradient(rgba(17, 24, 31, 0.68), rgba(17, 24, 31, 0.68)),
    url("assets/assembly-line.jpg") center / cover;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.video-grid video {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.video-grid h3 {
  margin: 14px 0 6px;
  font-size: 18px;
}

.video-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.detail-grid figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.detail-grid img {
  height: 220px;
  object-fit: cover;
}

.detail-grid figcaption {
  padding: 14px 16px;
  color: var(--steel);
  font-weight: 800;
}

.factory {
  background: #edf2f5;
}

.check-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: var(--steel);
  font-weight: 700;
}

.check-list li::before {
  position: absolute;
  left: 0;
  top: 2px;
  content: "";
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--green);
}

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

.factory-gallery img {
  height: 210px;
  object-fit: cover;
  border-radius: 6px;
}

.factory-gallery .wide {
  grid-column: 1 / -1;
  height: 300px;
}

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

.application-grid div {
  padding: 28px;
  background: var(--white);
}

.custom {
  background: var(--white);
}

.dealer-band {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(56px, 8vw, 104px) clamp(18px, 5vw, 72px);
  color: var(--white);
  background: var(--steel);
}

.dealer-band .eyebrow {
  color: #ffd166;
}

.dealer-band p {
  max-width: 660px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
}

.contact {
  background: var(--white);
}

.social {
  color: var(--white);
}

.whatsapp {
  background: #128c7e;
}

.facebook {
  background: #1877f2;
}

.tiktok {
  background: #111111;
}

.inquiry-form {
  display: grid;
  gap: 14px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.inquiry-form label {
  display: grid;
  gap: 6px;
  color: var(--steel);
  font-size: 14px;
  font-weight: 800;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  min-height: 44px;
  padding: 12px;
  border: 1px solid #cbd5dc;
  border-radius: 4px;
  color: var(--ink);
  background: var(--white);
  font: inherit;
}

.inquiry-form textarea {
  resize: vertical;
}

.inquiry-form small {
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(18px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.78);
  background: #11181f;
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer strong {
  color: var(--white);
}

.site-footer p {
  max-width: 520px;
  margin: 0;
  text-align: right;
}

.floating-whatsapp {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  color: var(--white);
  background: #128c7e;
  border: 3px solid var(--white);
  border-radius: 50%;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.24);
  font-weight: 900;
}

@media (max-width: 980px) {
  .proof-strip,
  .catalog-grid,
  .detail-grid,
  .application-grid,
  .video-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro,
  .factory,
  .contact,
  .custom,
  .dealer-band,
  .video-feature {
    grid-template-columns: 1fr;
  }

  .dealer-band img,
  .intro-media img,
  .custom-media img {
    height: 420px;
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 10px;
  }

  .site-header.nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    padding: 12px 4px;
  }

  .hero {
    min-height: 76vh;
  }

  .hero > img {
    object-position: 54% center;
  }

  .proof-strip,
  .catalog-grid,
  .detail-grid,
  .application-grid,
  .video-grid,
  .factory-gallery {
    grid-template-columns: 1fr;
  }

  .product-card img,
  .detail-grid img,
  .factory-gallery img,
  .factory-gallery .wide,
  .dealer-band img,
  .intro-media img,
  .custom-media img {
    height: auto;
    max-height: 390px;
  }

  .product-card img,
  .detail-grid img {
    object-fit: contain;
  }

  .site-footer {
    display: block;
  }

  .site-footer p {
    margin-top: 14px;
    text-align: left;
  }
}