:root {
  --red: #e30613;
  --black: #08090b;
  --charcoal: #15171b;
  --silver: #d9dde2;
  --paper: #f3f4f6;
  --white: #fff;
  --ink: #1b1e23;
  --muted: #69717b;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Rajdhani", Arial, sans-serif; font-weight: 500; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }
.site-header { height: 72px; color: var(--white); background: #050505; border-bottom: 1px solid rgba(227,6,19,.65); }
.nav { height: 100%; display: flex; align-items: center; gap: 30px; }
.brand { width: 190px; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 28px; font-weight: 700; }
.nav-links a:hover, .nav-links a.active { color: var(--red); }
.contact-link { padding: 11px 18px; color: var(--white); background: var(--red); border-radius: 4px; font-weight: 700; }
h1, h2, h3 { margin: 0; font-family: "Barlow Condensed", "Arial Narrow", sans-serif; text-transform: uppercase; }
.product-hero { color: var(--white); background: linear-gradient(110deg,#050505 0%,#111318 62%,#64050c); border-bottom: 3px solid var(--red); }
.breadcrumbs { padding-top: 20px; color: #aeb4bc; font-size: 13px; }
.breadcrumbs a:hover { color: var(--white); }
.hero-grid { min-height: 470px; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 50px; }
.series { color: #ff3e49; font-size: 13px; font-weight: 800; text-transform: uppercase; }
.hero-copy h1 { margin-top: 8px; font-size: clamp(64px,8vw,96px); font-style: italic; line-height: .84; }
.hero-copy .subtitle { margin: 20px 0 0; color: #d0d4da; font-size: 20px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 24px; }
.hero-meta span { padding: 7px 12px; border: 1px solid rgba(255,255,255,.28); color: #f1f2f4; font-size: 12px; font-weight: 700; text-transform: uppercase; }
.product-visual { height: 420px; display: flex; align-items: center; justify-content: center; gap: 18px; overflow: hidden; }
.product-visual img { max-height: 390px; max-width: 48%; object-fit: contain; filter: drop-shadow(0 22px 24px rgba(0,0,0,.5)); }
.product-visual.single img { max-width: 72%; }
.overview { padding: 46px 0; background: var(--white); }
.overview-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 54px; align-items: start; }
.section-label { display: block; margin-bottom: 8px; color: var(--red); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.overview h2, .documents h2 { font-size: 34px; }
.overview p { color: var(--muted); font-size: 17px; line-height: 1.6; }
.spec-list { border-top: 3px solid var(--red); }
.spec-row { min-height: 56px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-bottom: 1px solid var(--silver); }
.spec-row span { color: var(--muted); font-size: 12px; text-transform: uppercase; }
.spec-row strong { text-align: right; }
.documents { padding: 46px 0 60px; background: #111318; color: var(--white); }
.documents-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 24px; }
.documents-head p { max-width: 570px; margin: 0; color: #aeb4bc; line-height: 1.5; }
.document-row { min-height: 100px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 26px; padding: 22px 26px; background: #1b1e23; border-left: 4px solid var(--red); }
.document-row strong, .document-row span { display: block; }
.document-row strong { font-family: "Barlow Condensed", sans-serif; font-size: 23px; text-transform: uppercase; }
.document-row span { margin-top: 5px; color: #aeb4bc; font-size: 13px; }
.download-button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; padding: 0 20px; color: var(--white); background: var(--red); border-radius: 3px; font-weight: 800; text-transform: uppercase; }
.download-button:hover { background: #b9000c; }
.related { padding: 36px 0; background: #e7e9ec; }
.related-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.related h2 { font-size: 28px; }
.related-links { display: flex; gap: 12px; }
.related-links a { padding: 10px 14px; background: var(--white); border: 1px solid #cfd3d8; font-weight: 700; }
.related-links a:hover { border-color: var(--red); color: var(--red); }
.footer { padding: 28px 0; color: #aab0b8; background: #090a0c; }
.footer-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.footer img { width: 170px; }
.footer p { margin: 0; text-align: right; font-size: 13px; }
@media (max-width: 820px) {
  .nav-links { display: none; }
  .contact-link { margin-left: auto; }
  .hero-grid, .overview-grid { grid-template-columns: 1fr; }
  .hero-grid { padding: 34px 0; }
  .product-visual { order: -1; height: 300px; }
  .product-visual img { max-height: 280px; }
}
@media (max-width: 580px) {
  .container { width: min(100% - 28px, var(--max)); }
  .site-header { height: 64px; }
  .brand { width: 150px; }
  .contact-link { padding: 9px 12px; font-size: 12px; }
  .hero-copy h1 { font-size: 58px; }
  .product-visual { gap: 8px; }
  .document-row { grid-template-columns: 1fr; }
  .download-button { width: 100%; }
  .documents-head, .related-row, .footer-row { display: block; }
  .documents-head p, .related-links, .footer p { margin-top: 14px; }
  .related-links { flex-wrap: wrap; }
  .footer p { text-align: left; }
}