:root {
  --orange: #f97316;
  --orange-dark: #ea580c;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-400: #9ca3af;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --blue-200: #bfdbfe;
  --blue-900: #1e3a8a;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--gray-900);
  line-height: 1.6;
  background: var(--white);
}

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

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 600;
  padding: 12px 32px;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  transition: all 0.3s ease;
  text-align: center;
}

.btn-orange {
  background: var(--orange);
  color: #fff;
}

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

.btn-white {
  background: #fff;
  color: var(--blue-900);
}

.btn-white:hover {
  background: var(--gray-100);
}

.btn-outline {
  background: transparent;
  color: var(--orange);
  border: 2px solid var(--orange);
}

.btn-outline:hover {
  background: var(--orange);
  color: #fff;
}

.btn-green {
  background: var(--green-500);
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  font-size: 1.05rem;
}

.btn-green:hover {
  background: var(--green-600);
}

/* Header */
.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 120px;
}

.logo img {
  height: 108px;
  width: auto;
  object-fit: contain;
}

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

.nav-links a {
  padding: 8px 16px;
  color: var(--gray-700);
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--orange);
  background: var(--gray-50);
}

/* Language switcher */
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  overflow: hidden;
  margin-left: 8px;
}

.lang-switch button {
  background: #fff;
  border: none;
  padding: 6px 12px;
  cursor: pointer;
  font-weight: 600;
  color: var(--gray-600);
  font-size: 0.85rem;
}

.lang-switch button.active {
  background: var(--orange);
  color: #fff;
}

/* Mobile menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--gray-700);
}

.menu-toggle svg {
  width: 26px;
  height: 26px;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 12px 0;
  border-top: 1px solid var(--gray-200);
}

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

.mobile-nav a {
  padding: 12px 16px;
  color: var(--gray-700);
  border-radius: 8px;
}

.mobile-nav a:hover {
  color: var(--orange);
  background: var(--gray-50);
}

/* Hero */
.hero {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.25) contrast(1.05) brightness(1.05);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(17,24,39,0.10), rgba(17,24,39,0) 45%, rgba(17,24,39,0.35));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 20px;
  max-width: 900px;
}

.hero-content h1 {
  font-size: 2.75rem;
  color: #fff;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero-content .accent {
  font-size: 1.4rem;
  color: var(--blue-200);
  margin-bottom: 32px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Sections */
.section {
  padding: 64px 0;
}

.section.gray {
  background: var(--gray-50);
}

.section.dark {
  background: var(--gray-800);
}

.section.blue-gradient {
  background: linear-gradient(90deg, var(--blue-900), #1e40af);
}

.section-head {
  text-align: center;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: 2rem;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.section-head p {
  font-size: 1.1rem;
  color: var(--gray-600);
  max-width: 640px;
  margin: 0 auto;
}

.section.dark .section-head h2 { color: #fff; }
.section.dark .section-head p { color: var(--blue-200); }

/* Page header */
.page-header {
  background: var(--gray-50);
  padding: 72px 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  color: var(--gray-900);
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--gray-600);
  max-width: 640px;
  margin: 0 auto;
}

/* Grids */
.grid {
  display: grid;
  gap: 24px;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* Cards */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 24px;
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
  border-color: var(--orange);
}

.card .icon {
  width: 40px;
  height: 40px;
  color: var(--orange);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--gray-900);
}

.card p {
  color: var(--gray-600);
  font-size: 0.95rem;
}

.card.center {
  text-align: center;
}

.card.center .icon {
  margin: 0 auto 16px;
  width: 48px;
  height: 48px;
}

/* Product cards */
.product-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.product-card:hover {
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.product-card .thumb {
  height: 192px;
  background: var(--gray-100);
}

.product-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.product-card .body {
  padding: 16px;
}

.product-card .body h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.product-card .specs {
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-bottom: 16px;
}

.product-card .btn,
.product-card button {
  width: 100%;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat {
  text-align: center;
}

.stat .num {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 8px;
}

.stat .label {
  color: var(--blue-200);
}

/* WhatsApp / CTA */
.cta {
  text-align: center;
}

.cta .icon {
  width: 64px;
  height: 64px;
  color: #fff;
  margin: 0 auto 24px;
}

.cta h2 {
  color: #fff;
  font-size: 2rem;
  margin-bottom: 16px;
}

.cta p {
  color: #fff;
  font-size: 1.15rem;
  margin-bottom: 32px;
}

/* Forms */
.form-controls {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.search-box {
  flex: 1;
  position: relative;
  min-width: 240px;
}

.search-box svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--gray-400);
}

.search-box input {
  width: 100%;
  padding: 12px 16px 12px 42px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 1rem;
}

select,
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--orange);
}

.form-box {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.form-box h2 {
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  color: var(--gray-700);
  margin-bottom: 8px;
}

/* Table */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 16px;
  border-bottom: 1px solid var(--gray-200);
}

th {
  color: var(--gray-900);
  font-weight: 600;
}

tbody tr:hover {
  background: var(--gray-50);
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--green-600);
  color: #fff;
  font-size: 0.85rem;
  border-radius: 999px;
}

/* Contact info */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.info-item svg {
  width: 24px;
  height: 24px;
  color: var(--orange);
  flex-shrink: 0;
  margin-top: 4px;
}

.info-item h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.info-item p, .info-item a {
  color: var(--gray-600);
}

.rounded-img {
  border-radius: 12px;
  overflow: hidden;
  height: 256px;
  margin-bottom: 24px;
}

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

/* About */
.about-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  margin-bottom: 48px;
}

.about-card .cover {
  height: 256px;
}

.about-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-card .body {
  padding: 38px 42px 44px;
}
.about-card .body p {
  margin-bottom: 18px;
  line-height: 1.85;
}
.about-card .body .about-lead {
  color: var(--gray-900);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.65;
}
.about-section-block {
  margin: 34px 0 0;
  padding-top: 28px;
  border-top: 1px solid var(--gray-200);
}
.about-section-block h2 {
  color: var(--gray-900);
  font-size: 1.35rem;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}
.about-section-block h2::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 3px;
  background: var(--orange);
  margin: 0 12px 4px 0;
}
.about-commitment { color: var(--gray-700); font-weight: 600; }
.about-card .body ul {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}
.about-card .body li {
  color: var(--gray-700);
  line-height: 1.7;
  margin: 10px 0;
  padding-left: 22px;
  position: relative;
}
.about-card .body li::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--orange);
  position: absolute;
  left: 0;
  top: .65em;
}
.about-tagline {
  background: var(--gray-900);
  color: #fff !important;
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.5 !important;
  margin: 36px -42px -44px !important;
  padding: 28px 42px;
}

@media (max-width: 640px) {
  .about-card .body { padding: 28px 22px 32px; }
  .about-card .body .about-lead { font-size: 1.08rem; }
  .about-tagline { margin: 30px -22px -32px !important; padding: 24px 22px; }
}

.about-card h2,
.mv-card h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.about-card h2 svg,
.mv-card h2 svg {
  width: 32px;
  height: 32px;
  color: var(--orange);
}

.about-card p, .mv-card p {
  color: var(--gray-700);
}

.mv-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

/* Footer */
.site-footer {
  background: var(--gray-900);
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 32px;
  padding: 48px 0;
}

.site-footer h3, .site-footer h4 {
  color: #fff;
  margin-bottom: 16px;
}

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

.site-footer p, .site-footer li, .site-footer a, .site-footer span {
  color: var(--gray-400);
  font-size: 0.9rem;
}

.site-footer ul {
  list-style: none;
}

.site-footer li {
  margin-bottom: 8px;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.site-footer a:hover {
  color: #fff;
}

.site-footer svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  color: #6b7280;
}

.mt-8 { margin-top: 48px; }
.text-center { text-align: center; }

/* Product detail */
.product-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
  margin-bottom: 32px;
}

.pd-main {
  border-radius: 10px;
  overflow: hidden;
  background: var(--gray-100);
  height: 380px;
}

.pd-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.pd-thumbs {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.gallery-thumb {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.2s ease;
}

.gallery-thumb:hover { border-color: var(--gray-400); }
.gallery-thumb.active { border-color: var(--orange); }

.pd-info h2 {
  font-size: 1.6rem;
  color: var(--gray-900);
  margin-bottom: 6px;
}

.pd-tagline {
  color: var(--orange);
  font-weight: 600;
  margin-bottom: 16px;
}

.pd-desc {
  color: var(--gray-700);
  margin-bottom: 24px;
  line-height: 1.7;
}

.spec-table {
  margin-bottom: 24px;
}

.spec-table th {
  width: 45%;
  color: var(--gray-600);
  font-weight: 500;
  vertical-align: top;
  padding: 10px 12px;
  font-size: 0.92rem;
}

.spec-table td {
  color: var(--gray-900);
  font-weight: 600;
  padding: 10px 12px;
  font-size: 0.92rem;
}

.pd-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .product-detail { grid-template-columns: 1fr; }
  .pd-main { height: 300px; }
}

/* Utilities */
.hide-mobile { display: initial; }

/* Responsive */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .rfq-grid { grid-template-columns: 1fr !important; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .menu-toggle { display: block; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 2rem; }
  .hero-content .accent { font-size: 1.1rem; }
  .hero { height: 460px; }
}

:root {
  --orange: #ef6c32;
  --orange-dark: #c94f1e;
  --gray-900: #102b3f;
  --gray-800: #123c56;
  --gray-700: #34566a;
  --gray-600: #667f8e;
  --gray-400: #9bb0ba;
  --gray-200: #dbe5e9;
  --gray-100: #eef3f5;
  --gray-50: #f6f9fa;
  --blue-200: #c8dfe8;
  --blue-900: #0d2c41;
  --green-500: #22a06b;
  --green-600: #168253;
}

body {
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--gray-900);
  background: #fff;
}

.container { max-width: 1280px; padding: 0 28px; }

.site-header {
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid #e7eef1;
  box-shadow: 0 4px 18px rgba(16, 43, 63, 0.06);
}

.site-header .container { height: 112px; }
.header-utility .container { height: auto; min-height: 34px; }
.header-main { height: 112px !important; }
.logo img { height: 92px; width: auto; }
.nav-links { gap: 2px; }
.nav-links a {
  padding: 10px 14px;
  border-radius: 2px;
  color: var(--gray-700);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.nav-links a:hover,
.nav-links a.active { color: var(--orange); background: transparent; }
.lang-switch { border-radius: 2px; border-color: var(--gray-200); }
.lang-switch button { padding: 7px 10px; border-radius: 0; }
.lang-switch button.active { background: var(--gray-900); }

.btn {
  border-radius: 2px;
  padding: 13px 24px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
}
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: var(--orange-dark); }
.btn-ghost { color: #fff; border: 1px solid rgba(255,255,255,.7); background: transparent; }
.btn-ghost:hover { background: #fff; color: var(--gray-900); }
.btn-orange { background: var(--orange); }
.btn-orange:hover { background: var(--orange-dark); }
.btn-outline { border-radius: 2px; color: var(--gray-900); border-color: var(--gray-900); }
.btn-outline:hover { background: var(--gray-900); color: #fff; }
.btn-green { border-radius: 2px; }

.hero {
  min-height: 610px;
  height: min(72vh, 720px);
  justify-content: flex-start;
  text-align: left;
  background: var(--gray-900);
}
.hero-bg { filter: saturate(.8) contrast(1.08) brightness(.58); }
.hero-overlay { background: linear-gradient(90deg, rgba(8,30,45,.9) 0%, rgba(8,30,45,.65) 48%, rgba(8,30,45,.12) 100%); }
.hero-content { max-width: 760px; margin-left: max(0px, calc((100vw - 1280px) / 2)); padding: 0 28px; }
.hero-eyebrow {
  color: #f5a47f;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .2em;
  margin-bottom: 22px;
}
.hero-content h1 { max-width: 700px; font-size: clamp(2.7rem, 6vw, 5.2rem); font-weight: 700; letter-spacing: -.04em; line-height: 1.02; }
.hero-content .accent { max-width: 620px; color: #f5a47f; font-size: clamp(1.25rem, 2.2vw, 1.7rem); margin: 20px 0 14px; }
.hero-copy { max-width: 640px; color: rgba(255,255,255,.82); font-size: 1rem; line-height: 1.8; margin-bottom: 30px; }
.hero-actions { justify-content: flex-start; }
.hero-scroll { position: absolute; bottom: 24px; left: 28px; z-index: 2; color: rgba(255,255,255,.7); font-size: .68rem; letter-spacing: .18em; }
.hero-scroll span { margin-left: 10px; color: #f5a47f; font-size: 1rem; }

.trust-strip { background: var(--gray-900); border-top: 1px solid rgba(255,255,255,.12); }
.trust-strip-inner { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: #b9cbd3; font-size: .67rem; font-weight: 700; letter-spacing: .14em; }

.section { padding: 92px 0; }
.section.gray { background: var(--gray-50); }
.section.dark { background: var(--gray-900); }
.section.blue-gradient { background: var(--gray-800); }
.section-head { text-align: left; margin-bottom: 42px; }
.section-head h2 { color: var(--gray-900); font-size: clamp(1.8rem, 3vw, 2.65rem); letter-spacing: -.035em; }
.section-head p { margin: 0; max-width: 620px; font-size: 1rem; }
.section-head::before { content: ""; display: block; width: 42px; height: 3px; margin-bottom: 18px; background: var(--orange); }

.page-header { background: var(--gray-900); padding: 88px 0 76px; text-align: left; }
.page-header h1 { color: #fff; font-size: clamp(2rem, 4vw, 3.5rem); letter-spacing: -.04em; }
.page-header p { margin: 0; color: var(--blue-200); }

.grid { gap: 22px; }
.card, .product-card, .form-box, .about-card, .mv-card, .product-detail {
  border-radius: 2px;
  border-color: #dce7eb;
  box-shadow: 0 8px 28px rgba(16, 43, 63, .06);
}
.card { padding: 28px; }
.card:hover { border-color: var(--orange); box-shadow: 0 14px 34px rgba(16,43,63,.12); transform: translateY(-3px); }
.card .icon { color: var(--orange); }
.product-card:hover { box-shadow: 0 14px 34px rgba(16,43,63,.14); transform: translateY(-3px); }
.product-card .thumb { height: 218px; background: #eaf1f3; }
.product-card .body { padding: 22px; }
.product-card .body h3 { color: var(--gray-900); font-size: 1.06rem; min-height: 2.6em; }
.product-card .specs { min-height: 4.2em; }

.stats { gap: 16px; }
.stat .num { color: var(--orange); }

.cta { max-width: 760px; }
.cta .icon { color: #f5a47f; }

.form-box { padding: 30px; }
input:focus, select:focus, textarea:focus { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(239,108,50,.12); }
.badge { border-radius: 2px; background: var(--green-600); }

.site-footer { background: var(--gray-900); margin-top: 0; }
.site-footer h3, .site-footer h4 { letter-spacing: .04em; }
.footer-bottom { border-color: rgba(255,255,255,.12); }

.product-detail { padding: 30px; box-shadow: 0 10px 32px rgba(16,43,63,.08); }
.pd-main { border-radius: 2px; background: #edf3f5; }
.gallery-thumb { border-radius: 2px; }
.gallery-thumb.active { border-color: var(--orange); }
.pd-info h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); letter-spacing: -.03em; }
.pd-tagline { color: var(--orange); }

@media (max-width: 900px) {
  body { overflow-x: hidden; }
  .site-header .container { height: 86px; }
  .header-utility .container { height: auto; min-height: 30px; }
  .header-main { height: 86px !important; }
  .logo img { height: 76px; }
  .nav-links { display: none; }
  .menu-toggle { display: block; }
  .hero-content { margin-left: 0; }
  .trust-strip-inner { flex-wrap: wrap; padding-top: 18px; padding-bottom: 18px; }
  .mobile-nav { padding: 12px 0 18px; }
  .mobile-nav .lang-switch { align-self: flex-start; margin: 8px 16px 0; }
  .mobile-nav a { padding: 13px 16px; }
  .contact-grid, .rfq-grid { gap: 28px; }
  .product-detail { gap: 26px; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .hero { min-height: 540px; height: auto; padding: 96px 0 112px; }
  .hero-content { padding: 0; }
  .hero-eyebrow { font-size: .58rem; letter-spacing: .12em; margin-bottom: 16px; }
  .hero-content h1 { font-size: clamp(2.15rem, 11vw, 2.8rem); }
  .hero-content .accent { font-size: 1.1rem; margin: 16px 0 12px; }
  .hero-copy { font-size: .9rem; line-height: 1.65; margin-bottom: 24px; }
  .hero-actions { align-items: stretch; flex-direction: column; max-width: 260px; }
  .hero-actions .btn { width: 100%; }
  .hero-scroll { left: 20px; bottom: 22px; font-size: .56rem; }
  .trust-strip-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; font-size: .55rem; line-height: 1.35; }
  .section { padding: 62px 0; }
  .section-head { margin-bottom: 30px; }
  .section-head h2 { font-size: 1.85rem; }
  .page-header { padding: 58px 0 48px; }
  .page-header h1 { font-size: 2.2rem; }
  .page-header p { font-size: .95rem; }
  .product-card .thumb { height: 190px; }
  .product-card .body { padding: 18px; }
  .product-detail { padding: 18px; }
  .pd-main { height: 250px; }
  .pd-actions { flex-direction: column; gap: 10px; }
  .pd-actions .btn { width: 100%; justify-content: center; }
  .form-box { padding: 22px 18px; }
  .form-controls { flex-direction: column; }
  .search-box, .form-controls select { min-width: 0; width: 100%; }
  .contact-grid { gap: 34px; }
  .rounded-img { height: 210px; }
  .footer-grid { gap: 28px; }
}

.header-utility {
  background: var(--gray-900);
  color: rgba(255,255,255,.72);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.header-utility-inner {
  min-height: 34px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 24px;
}
.header-utility .utility-note { color: #f5a47f; margin-left: auto; }
.header-main { position: relative; }
.header-quote {
  background: var(--orange);
  color: #fff;
  padding: 12px 18px;
  border-radius: 2px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-left: 12px;
}
.header-quote:hover { background: var(--orange-dark); }

.home-intro { background: #fff; }
.intro-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.intro-copy { max-width: 580px; }
.eyebrow, .action-kicker {
  color: var(--orange);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.intro-copy h2 {
  margin: 16px 0;
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  letter-spacing: -.045em;
  line-height: 1.08;
}
.intro-copy > p:not(.eyebrow) { color: var(--gray-600); max-width: 520px; font-size: 1.05rem; line-height: 1.8; }
.text-link { display: inline-block; margin-top: 24px; color: var(--gray-900); font-weight: 700; text-transform: uppercase; font-size: .76rem; letter-spacing: .08em; border-bottom: 2px solid var(--orange); padding-bottom: 5px; }
.text-link:hover { color: var(--orange); }
.intro-actions { display: grid; gap: 14px; }
.action-panel {
  min-height: 148px;
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.action-panel strong { max-width: 360px; margin-top: 10px; color: #fff; font-size: 1.45rem; line-height: 1.15; }
.action-panel-dark { background: var(--gray-900); }
.action-panel-orange { background: var(--orange); }
.action-arrow { position: absolute; right: 28px; bottom: 24px; color: rgba(255,255,255,.8); font-size: 2rem; line-height: 1; }
.action-panel:hover { transform: translateX(5px); }
.action-panel-orange .action-kicker { color: rgba(255,255,255,.72); }

@media (max-width: 900px) {
  .header-utility-inner { justify-content: space-between; }
  .header-utility .utility-note { display: none; }
  .header-quote { display: none; }
  .intro-layout { grid-template-columns: 1fr; gap: 42px; }
}

@media (max-width: 640px) {
  .header-utility-inner { min-height: 30px; gap: 12px; font-size: .56rem; }
  .header-main { height: 78px !important; }
  .logo img { height: 68px; }
  .menu-toggle { margin-left: auto; color: var(--gray-900); }
  .intro-layout { gap: 32px; }
  .action-panel { min-height: 128px; padding: 24px; }
  .action-panel strong { font-size: 1.2rem; }
}

@media (max-width: 900px) {
  .site-header { position: sticky; }
  .site-header > .container:last-child {
    height: 0 !important;
    min-height: 0 !important;
    padding-top: 0;
    padding-bottom: 0;
  }
  .mobile-nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100vw;
    max-height: calc(100vh - 108px);
    overflow-y: auto;
    padding: 12px 20px 22px;
    background: var(--gray-900);
    border-top: 2px solid var(--orange);
    box-shadow: 0 16px 28px rgba(8, 30, 45, .24);
    z-index: 100;
  }
  .mobile-nav a {
    display: block;
    width: 100%;
    padding: 15px 4px;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,.14);
    border-radius: 0;
    font-size: .9rem;
    font-weight: 600;
    text-transform: uppercase;
  }
  .mobile-nav a:hover,
  .mobile-nav a.active {
    color: #fff;
    background: rgba(255,255,255,.1);
  }
  .mobile-nav .lang-switch {
    margin: 16px 0 0;
    border-color: rgba(255,255,255,.35);
  }
  .mobile-nav .lang-switch button {
    background: transparent;
    color: #fff;
  }
  .mobile-nav .lang-switch button.active {
    background: var(--orange);
    color: #fff;
  }
}