/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: #FDFCFA;
  color: #101010;
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.25s ease; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5 { font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }

/* ===== UTILITY ===== */
.container { width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 40px; }
.section-sep { width: 100%; height: 1px; background: #E0D9CE; }

/* ===== TOP BAR ===== */
.top-bar {
  background: #1A1A1A; color: #B8B0A2; font-size: 13px; padding: 8px 0; letter-spacing: 0.02em;
}
.top-bar .container { display: flex; justify-content: space-between; align-items: center; }
.top-bar a { color: #B8B0A2; transition: color 0.2s; }
.top-bar a:hover { color: #FFB236; }
.top-bar-left { display: flex; gap: 24px; align-items: center; }
.top-bar-right { display: flex; gap: 20px; align-items: center; }
.top-bar-right a { display: flex; align-items: center; gap: 6px; }

/* ===== NAVIGATION ===== */
.navbar {
  background: #fff; position: sticky; top: 0; z-index: 1000;
  border-bottom: 1px solid #E8E2D8; transition: box-shadow 0.3s ease;
}
.navbar.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.06); }
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.nav-logo img { height: 44px; width: auto; }
.nav-links { display: flex; gap: 36px; align-items: center; }
.nav-links a {
  font-size: 15px; font-weight: 500; color: #333;
  position: relative; padding: 4px 0; letter-spacing: 0.01em;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: #CD2122; transition: width 0.3s ease;
}
.nav-links a:hover { color: #CD2122; }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: #CD2122; }
.nav-links a.active::after { width: 100%; }
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-cta {
  background: #CD2122; color: #fff; font-weight: 600; font-size: 14px;
  padding: 12px 28px; border-radius: 6px; letter-spacing: 0.02em; transition: all 0.3s ease;
}
.nav-cta:hover { background: #B51C1D; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(205,33,34,0.3); }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-hamburger span { width: 24px; height: 2px; background: #333; transition: all 0.3s; display: block; }

/* Language Switcher */
.lang-switch { display: flex; align-items: center; gap: 8px; margin-left: 16px; flex-shrink: 0; white-space: nowrap; }
.lang-switch a { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 500; color: #888; text-decoration: none; transition: color 0.3s; letter-spacing: 0.5px; }
.lang-switch a.active { color: #1A1A1A; font-weight: 700; }
.lang-switch a:hover { color: #CD2122; }
.lang-flag { width: 18px; height: 13px; object-fit: cover; border-radius: 2px; border: 1px solid rgba(0,0,0,0.1); vertical-align: middle; flex-shrink: 0; }
.lang-divider { color: #ccc; font-size: 12px; }

/* ===== PAGE HERO ===== */
.page-hero {
  background: linear-gradient(135deg, #1A1A1A 0%, #2D2D2D 100%);
  padding: 80px 0 60px;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute; top: -50%; right: -20%;
  width: 600px; height: 600px; border-radius: 50%;
  background: radial-gradient(circle, rgba(205,33,34,0.08) 0%, transparent 70%);
}
.breadcrumb { display: flex; align-items: center; gap: 8px; margin-bottom: 24px; font-size: 14px; }
.breadcrumb a { color: rgba(255,255,255,0.6); transition: color 0.25s; }
.breadcrumb a:hover { color: #FFB236; }
.breadcrumb svg { color: rgba(255,255,255,0.4); }
.breadcrumb span { color: #FFB236; font-weight: 500; }
.page-hero-title {
  font-size: clamp(40px, 5vw, 64px); color: #fff;
  font-weight: 800; letter-spacing: -0.03em; margin-bottom: 16px;
}
.page-hero-desc {
  font-size: clamp(16px, 1.3vw, 19px); color: rgba(255,255,255,0.65);
  max-width: 560px; line-height: 1.7; font-weight: 300;
}

/* ===== PRODUCT OVERVIEW ===== */
.product-overview { padding: 100px 0; background: #FDFCFA; }
.overview-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.overview-image { border-radius: 12px; overflow: hidden; }
.overview-image img {
  width: 100%; height: 500px; object-fit: cover; border-radius: 12px;
}
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  color: #CD2122; font-size: 13px; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 16px;
}
.section-label::before {
  content: ''; width: 32px; height: 2px; background: #CD2122;
}
.overview-title {
  font-size: clamp(32px, 3.5vw, 48px); margin-bottom: 24px; color: #101010;
}
.overview-title span { color: #CD2122; }
.overview-text { font-size: 16px; color: #555; line-height: 1.8; margin-bottom: 16px; }
.overview-highlights { display: flex; flex-direction: column; gap: 12px; margin-top: 32px; }
.highlight-item {
  display: flex; align-items: center; gap: 12px;
  font-size: 15px; font-weight: 500; color: #333;
}

/* ===== SECTION HEADER (centered) ===== */
.section-header {
  text-align: center; max-width: 640px; margin: 0 auto 64px;
}
.section-header .section-label { justify-content: center; }
.section-header .section-label::after {
  content: ''; width: 24px; height: 2px; background: #CD2122;
}
.section-title {
  font-size: clamp(32px, 3.5vw, 52px); margin-bottom: 20px; color: #101010;
}
.section-desc { font-size: 17px; color: #666; line-height: 1.7; }

/* ===== SUB-TYPES ===== */
.sub-types { padding: 100px 0; background: #F5F0E8; }
.sub-types-list { display: flex; flex-direction: column; gap: 32px; }
.sub-type-card {
  display: flex; gap: 40px; background: #fff; border-radius: 12px;
  overflow: hidden; border: 1px solid #E8E2D8; transition: all 0.3s ease;
}
.sub-type-card:hover {
  transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.06);
  border-color: #CD2122;
}
.sub-type-thumb {
  width: 240px; min-height: 240px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.sub-type-content { padding: 32px 32px 32px 0; flex: 1; }
.sub-type-content h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 24px; font-weight: 700; margin-bottom: 12px; color: #101010;
}
.sub-type-content > p {
  font-size: 15px; color: #666; line-height: 1.7; margin-bottom: 20px;
}
.sub-type-features {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; margin-bottom: 24px;
}
.sub-type-features li {
  font-size: 14px; color: #555; padding-left: 20px; position: relative; line-height: 1.6;
}
.sub-type-features li::before {
  content: '';
  position: absolute; left: 0; top: 8px;
  width: 8px; height: 8px; border-radius: 50%;
  background: #CD2122; opacity: 0.6;
}
.btn-catalogue {
  display: inline-flex; align-items: center; gap: 8px;
  background: #1A1A1A; color: #fff; font-weight: 600; font-size: 14px;
  padding: 12px 24px; border-radius: 6px; transition: all 0.3s ease;
}
.btn-catalogue:hover { background: #333; transform: translateY(-1px); }

/* ===== TECH SPECS ===== */
.tech-specs { padding: 100px 0; background: #FDFCFA; }
.specs-table-wrap {
  border-radius: 12px; overflow: hidden; border: 1px solid #E8E2D8;
}
.specs-table {
  width: 100%; border-collapse: collapse; font-size: 15px;
}
.specs-table thead { background: #1A1A1A; }
.specs-table th {
  padding: 16px 20px; color: #fff; font-weight: 600; text-align: left;
  font-size: 14px; letter-spacing: 0.02em;
}
.specs-table td {
  padding: 16px 20px; border-bottom: 1px solid #E8E2D8; color: #555;
}
.specs-table tbody tr:last-child td { border-bottom: none; }
.specs-table tbody tr:nth-child(even) { background: #F9F6F1; }
.specs-table tbody tr:hover { background: #F0EBE0; }
.specs-table td strong { color: #101010; }

/* ===== RELATED CATEGORIES ===== */
.related-categories { padding: 100px 0; background: #F5F0E8; }
.related-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
}
.related-card {
  background: #fff; border-radius: 12px; overflow: hidden;
  border: 1px solid #E8E2D8; transition: all 0.4s ease;
}
.related-card:hover {
  transform: translateY(-8px); box-shadow: 0 16px 40px rgba(0,0,0,0.08);
  border-color: #CD2122;
}
.related-image { aspect-ratio: 16/10; overflow: hidden; background: #F9F6F1; }
.related-image img {
  width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease;
}
.related-card:hover .related-image img { transform: scale(1.06); }
.related-info { padding: 24px; }
.related-info h3 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 18px; font-weight: 700; margin-bottom: 8px; color: #101010;
}
.related-link {
  display: inline-flex; align-items: center; gap: 8px;
  color: #CD2122; font-weight: 600; font-size: 14px; transition: gap 0.3s;
}
.related-card:hover .related-link { gap: 14px; }

/* ===== QUOTE CTA ===== */
.quote-cta { padding: 100px 0; background: #FDFCFA; }
.quote-cta-inner {
  background: linear-gradient(135deg, #1A1A1A 0%, #2D2D2D 100%);
  border-radius: 16px; padding: 64px; text-align: center;
}
.quote-cta-icon { margin-bottom: 24px; }
.quote-cta-inner h2 {
  font-size: clamp(28px, 3vw, 40px); color: #fff; margin-bottom: 16px;
}
.quote-cta-inner > p {
  font-size: 17px; color: rgba(255,255,255,0.65); line-height: 1.7;
  max-width: 560px; margin: 0 auto 36px;
}
.quote-cta-actions { display: flex; gap: 16px; justify-content: center; }
.btn-primary {
  background: #CD2122; color: #fff; font-weight: 600; font-size: 15px;
  padding: 16px 36px; border-radius: 6px;
  display: inline-flex; align-items: center; gap: 10px;
  transition: all 0.3s ease; letter-spacing: 0.01em;
}
.btn-primary:hover { background: #B51C1D; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(205,33,34,0.35); }
.btn-outline-dark {
  background: transparent; color: #fff; font-weight: 600; font-size: 15px;
  padding: 16px 36px; border-radius: 6px;
  border: 1.5px solid rgba(255,255,255,0.25);
  display: inline-flex; align-items: center; gap: 10px;
  transition: all 0.3s ease;
}
.btn-outline-dark:hover { border-color: #fff; background: rgba(255,255,255,0.08); }

/* ===== FOOTER ===== */
.footer {
  background: #1A1A1A; color: #B8B0A2; padding: 80px 0 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px;
  padding-bottom: 60px; border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand img { height: 40px; margin-bottom: 20px; filter: brightness(10); }
.footer-brand p { font-size: 15px; line-height: 1.7; color: #888; max-width: 300px; }
.footer-social { display: flex; gap: 12px; margin-top: 24px; }
.footer-social a {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(255,255,255,0.06);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.25s; color: #888;
}
.footer-social a:hover { background: #CD2122; color: #fff; }
.footer-col h4 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 15px; font-weight: 700; color: #fff;
  margin-bottom: 24px; letter-spacing: 0.02em;
}
.footer-col ul { display: flex; flex-direction: column; gap: 14px; }
.footer-col a {
  font-size: 14px; color: #888; transition: all 0.25s;
  display: flex; align-items: center; gap: 6px;
}
.footer-col a:hover { color: #FFB236; padding-left: 4px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 28px 0; font-size: 13px; color: #666;
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { color: #666; transition: color 0.25s; }
.footer-bottom-links a:hover { color: #FFB236; }

/* Footer Credit */
.footer-credit { text-align: center; padding: 20px 0 0; margin-top: 20px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 13px; color: #888; }
.footer-credit a { color: #888; display: inline-flex; align-items: center; gap: 8px; transition: color 0.3s; }
.footer-credit a:hover { color: #FFB236; }
.footer-credit img { height: 14px; opacity: 0.7; transition: opacity 0.3s; }
.footer-credit a:hover img { opacity: 1; }

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px;
  width: 48px; height: 48px; border-radius: 12px;
  background: #CD2122; color: #fff;
  display: flex; align-items: center; justify-content: center;
  z-index: 999; opacity: 0; transform: translateY(20px);
  transition: all 0.3s; box-shadow: 0 4px 16px rgba(205,33,34,0.3);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: #B51C1D; transform: translateY(-2px); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .overview-grid { gap: 48px; }
  .sub-type-features { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .container { padding: 0 24px; }
  .top-bar { display: none; }
  .navbar .container { height: 68px; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-logo img { height: 32px; width: auto; }
  .nav-right { gap: 8px; }
  .nav-cta { padding: 8px 14px; font-size: 12px; }
  .lang-switch { gap: 4px; font-size: 10px; margin-left: 8px; }
  .lang-switch a { font-size: 10px; gap: 3px; }
  .lang-flag { width: 16px; height: 11px; }
  .lang-divider { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; padding: 24px; gap: 20px;
    border-bottom: 1px solid #E8E2D8;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  }
  .page-hero { padding: 60px 0 48px; }
  .product-overview { padding: 60px 0; }
  .overview-grid { grid-template-columns: 1fr; gap: 40px; }
  .overview-image img { height: 350px; }
  .sub-types { padding: 60px 0; }
  .sub-type-card { flex-direction: column; gap: 0; }
  .sub-type-thumb { width: 100%; min-height: 180px; }
  .sub-type-content { padding: 24px; }
  .tech-specs { padding: 60px 0; }
  .specs-table-wrap { overflow-x: auto; }
  .specs-table { min-width: 700px; }
  .related-categories { padding: 60px 0; }
  .related-grid { grid-template-columns: 1fr; }
  .quote-cta { padding: 60px 0; }
  .quote-cta-inner { padding: 40px 24px; }
  .quote-cta-actions { flex-direction: column; align-items: center; }
  .footer { padding: 60px 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}