:root {
  --bg: #f7f7f2;
  --surface: #ffffff;
  --surface-soft: #f0f1eb;
  --ink: #17201b;
  --ink-soft: #34423a;
  --muted: #6c776f;
  --line: #dfe4dc;
  --line-strong: #c7cec5;
  --green: #24634c;
  --green-dark: #174533;
  --green-soft: #dce9df;
  --sand: #efe5d2;
  --sand-deep: #a56f37;
  --blue: #dfeaee;
  --blue-deep: #32677c;
  --warm: #f3d6b8;
  --max: 1420px;
  --pad: clamp(20px, 4.5vw, 72px);
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 18px 48px rgba(23, 32, 27, .08);
  --font-display: "Bahnschrift", "DIN Alternate", "Arial Narrow", "Helvetica Neue", sans-serif;
  --font-body: "Aptos", "Segoe UI", "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
  --font-mono: "Cascadia Mono", Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 106px; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: var(--font-body); line-height: 1.55; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden; }
body.modal-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }
::selection { background: var(--green); color: var(--white, #fff); }
.skip-link { position: fixed; top: -70px; left: 16px; z-index: 1000; padding: 10px 15px; border-radius: 8px; background: var(--ink); color: #fff; transition: top .2s ease; }
.skip-link:focus { top: 12px; }
.reveal { transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.js .reveal { opacity: 0; transform: translateY(20px); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--muted); font-family: var(--font-mono); font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow > span:first-child { width: 27px; height: 27px; border: 1px solid var(--line-strong); border-radius: 50%; display: grid; place-items: center; color: var(--green); font-size: 8px; }
.eyebrow.light { color: rgba(255,255,255,.62); }
.eyebrow.light > span:first-child { border-color: rgba(255,255,255,.3); color: #fff; }
.button { min-height: 52px; padding: 0 19px; border: 1px solid transparent; border-radius: 9px; display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; font-size: 12px; font-weight: 700; letter-spacing: .03em; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-2px); }
.button svg { width: 17px; height: 17px; }
.button-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.button-primary:hover { background: var(--green); border-color: var(--green); }
.button-light { background: var(--surface); color: var(--ink); border-color: var(--line); }
.button-light:hover { border-color: var(--ink); }
.button-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); }
.button-outline-light:hover { border-color: #fff; }

/* Header */
#siteHeader { position: sticky; top: 0; z-index: 100; }
.site-header { height: 78px; padding: 0 var(--pad); display: flex; align-items: center; justify-content: space-between; gap: 26px; background: rgba(247,247,242,.94); border-bottom: 1px solid rgba(199,206,197,.7); backdrop-filter: blur(16px); }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: none; }
.brand-mark { width: 34px; height: 34px; color: var(--green); display: grid; place-items: center; }
.brand-mark svg { width: 100%; height: 100%; }
.brand-copy { display: flex; flex-direction: column; gap: 1px; }
.brand-copy strong { font-family: var(--font-display); font-size: 16px; line-height: 1; letter-spacing: .13em; }
.brand-copy small { color: var(--muted); font-family: var(--font-mono); font-size: 7px; letter-spacing: .16em; }
.desktop-nav { display: flex; align-items: center; gap: clamp(20px, 2.5vw, 38px); }
.desktop-nav a { color: var(--muted); font-size: 11px; font-weight: 650; letter-spacing: .04em; padding: 8px 0; }
.desktop-nav a:hover { color: var(--ink); }
.header-actions { display: flex; align-items: center; gap: 9px; flex: none; }
.language-switch { display: flex; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 99px; background: var(--surface); }
.language-switch button { border: 0; background: transparent; min-width: 29px; height: 27px; padding: 0 6px; border-radius: 99px; color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.language-switch button.is-active { background: var(--green); color: #fff; }
.mobile-language-select { display: none; border: 1px solid var(--line); background: var(--surface); border-radius: 8px; height: 34px; font-size: 10px; padding: 0 6px; }
.inquiry-button { height: 38px; border: 1px solid var(--ink); background: var(--ink); color: #fff; border-radius: 99px; display: inline-flex; align-items: center; gap: 10px; padding: 0 6px 0 14px; font-size: 10px; font-weight: 700; }
.inquiry-button strong { min-width: 26px; height: 26px; padding: 0 7px; display: grid; place-items: center; border-radius: 99px; background: #fff; color: var(--ink); font-family: var(--font-mono); font-size: 9px; }
.menu-button { display: none; width: 36px; height: 36px; padding: 8px; border: 1px solid var(--line); border-radius: 50%; background: var(--surface); color: var(--ink); }
.menu-button svg { width: 100%; height: 100%; }
.family-subnav { min-height: 53px; padding: 0 var(--pad); display: flex; align-items: stretch; justify-content: center; gap: 7px; background: rgba(255,255,255,.93); border-bottom: 1px solid var(--line); backdrop-filter: blur(15px); }
.family-subnav a { display: flex; align-items: center; gap: 10px; padding: 0 18px; border-bottom: 2px solid transparent; color: var(--muted); font-size: 10px; font-weight: 650; }
.family-subnav a small { color: #9aa39c; font-family: var(--font-mono); font-size: 7px; }
.family-subnav a.is-active { color: var(--ink); border-bottom-color: var(--green); }
.family-subnav a:hover { color: var(--ink); }
.mobile-menu { position: fixed; inset: 0; z-index: 300; padding: 20px; background: var(--bg); overflow-y: auto; }
.mobile-menu-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.mobile-menu-head button { border: 1px solid var(--line); background: var(--surface); width: 38px; height: 38px; padding: 9px; border-radius: 50%; }
.mobile-menu-head button svg { width: 100%; height: 100%; }
.mobile-nav { display: grid; margin: 28px 0; }
.mobile-nav a { padding: 16px 0; border-bottom: 1px solid var(--line); font-family: var(--font-display); font-size: 27px; }
.mobile-family-links { display: grid; gap: 7px; }
.mobile-family-links a { display: flex; justify-content: space-between; padding: 13px 15px; background: var(--surface); border: 1px solid var(--line); border-radius: 9px; font-size: 11px; }
.mobile-family-links a.is-active { border-color: var(--green); }
.mobile-family-links span { color: var(--muted); font-family: var(--font-mono); }
.mobile-contact { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); display: grid; gap: 8px; }
.mobile-contact span { color: var(--muted); font-size: 9px; text-transform: uppercase; }
.mobile-contact a { font-size: 14px; }

/* Home hero */
.home-hero { position: relative; overflow: hidden; min-height: 760px; max-width: var(--max); margin: 0 auto; padding: clamp(60px, 8vw, 118px) var(--pad) 80px; display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(480px, .98fr); gap: clamp(35px, 7vw, 110px); align-items: center; }
.home-hero::before { content: ""; position: absolute; width: 520px; height: 520px; right: 2%; top: 13%; border-radius: 50%; background: radial-gradient(circle, rgba(36,99,76,.09), transparent 68%); pointer-events: none; }
.home-hero-copy { position: relative; z-index: 2; }
.home-hero h1 { margin: 24px 0 26px; font-family: var(--font-display); font-size: clamp(58px, 7.3vw, 112px); font-weight: 500; line-height: .92; letter-spacing: -.055em; }
.home-hero h1 em { color: var(--green); font-style: normal; }
.home-hero-copy > p { max-width: 650px; margin: 0 0 32px; color: var(--muted); font-size: clamp(15px, 1.25vw, 18px); line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 9px; }
.hero-note { margin-top: 26px; display: flex; align-items: center; gap: 9px; color: var(--muted); font-family: var(--font-mono); font-size: 8px; letter-spacing: .03em; }
.hero-note span { width: 8px; height: 8px; border-radius: 50%; background: var(--green); }
.home-hero-visual { position: relative; min-height: 580px; }
.hero-image-large { position: absolute; width: min(68%, 390px); right: 9%; top: 3%; margin: 0; padding: 11px; background: #e5ebe5; border-radius: 18px; clip-path: polygon(0 4%, 7% 0, 100% 0, 100% 94%, 94% 100%, 0 100%); }
.hero-image-large img { width: 100%; height: 440px; object-fit: contain; mix-blend-mode: multiply; }
.hero-image-large figcaption, .hero-image-small figcaption { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 5px 2px; }
.hero-image-large figcaption span, .hero-image-small figcaption span { font-family: var(--font-display); font-size: 20px; }
.hero-image-large figcaption small, .hero-image-small figcaption small { color: var(--muted); font-family: var(--font-mono); font-size: 7px; }
.hero-image-small { position: absolute; width: 47%; left: 0; bottom: 5%; margin: 0; padding: 11px; background: var(--blue); border-radius: 15px; box-shadow: var(--shadow); transform: rotate(-3deg); }
.hero-image-small img { width: 100%; height: 180px; object-fit: contain; mix-blend-mode: multiply; }
.hero-data-chip { position: absolute; right: 0; bottom: 12%; width: 122px; height: 122px; border-radius: 50%; background: var(--green); color: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; box-shadow: 0 20px 40px rgba(23,50,38,.18); z-index: 4; }
.hero-data-chip strong { font-family: var(--font-display); font-size: 43px; font-weight: 500; line-height: 1; }
.hero-data-chip span { margin-top: 3px; font-size: 8px; letter-spacing: .06em; }
.hero-ring { position: absolute; width: 470px; height: 470px; border: 1px dashed rgba(36,99,76,.22); border-radius: 50%; right: -20px; top: 8%; }
.stat-band { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); }
.stat-band div { min-height: 115px; padding: 22px var(--pad); display: flex; flex-direction: column; justify-content: flex-end; border-inline-end: 1px solid var(--line); }
.stat-band div:last-child { border: 0; }
.stat-band strong { font-family: var(--font-display); font-size: clamp(32px, 3.4vw, 52px); font-weight: 500; line-height: 1; letter-spacing: -.04em; }
.stat-band span { margin-top: 7px; color: var(--muted); font-family: var(--font-mono); font-size: 8px; text-transform: uppercase; letter-spacing: .08em; }
.section { padding: clamp(80px, 9vw, 140px) var(--pad); }
.families-section { background: var(--surface); }
.section-heading { max-width: var(--max); margin: 0 auto 48px; }
.section-heading h2, .catalog-head h2, .related-section h2, .family-contact h2 { margin: 24px 0 0; font-family: var(--font-display); font-size: clamp(42px, 5vw, 76px); line-height: .96; font-weight: 500; letter-spacing: -.045em; }
.section-heading-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 60px; align-items: end; }
.section-heading-grid p { max-width: 500px; margin: 0 0 6px; color: var(--muted); line-height: 1.7; }
.family-overview-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.family-overview-card { grid-column: span 4; position: relative; min-height: 610px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; display: flex; flex-direction: column; transition: transform .35s ease, box-shadow .35s ease; }
.family-overview-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.family-overview-card:nth-child(1) { grid-column: span 5; }
.family-overview-card:nth-child(2) { grid-column: span 3; }
.family-overview-card:nth-child(3) { grid-column: span 4; }
.family-overview-media { position: relative; min-height: 300px; background: var(--surface-soft); display: grid; place-items: center; overflow: hidden; }
.family-overview-card.family-electro-optical .family-overview-media { background: var(--green-soft); }
.family-overview-card.family-piston-engines .family-overview-media { background: var(--sand); }
.family-overview-card.family-turbojet-engines .family-overview-media { background: var(--blue); }
.family-overview-media img { width: 82%; height: 270px; object-fit: contain; transition: transform .5s ease; mix-blend-mode: multiply; }
.family-overview-card:hover .family-overview-media img { transform: scale(1.035); }
.family-index { position: absolute; top: 17px; left: 18px; width: 34px; height: 34px; border: 1px solid rgba(23,32,27,.2); border-radius: 50%; display: grid; place-items: center; font-family: var(--font-mono); font-size: 8px; background: rgba(255,255,255,.45); backdrop-filter: blur(8px); }
.family-count { position: absolute; top: 17px; right: 18px; padding: 6px 9px; border-radius: 99px; background: rgba(255,255,255,.72); color: var(--muted); font-family: var(--font-mono); font-size: 7px; }
.family-overview-copy { flex: 1; padding: 23px 23px 20px; display: flex; flex-direction: column; }
.family-overview-top { color: var(--muted); font-family: var(--font-mono); font-size: 8px; letter-spacing: .02em; }
.family-overview-copy h3 { margin: 14px 0 10px; font-family: var(--font-display); font-size: clamp(28px, 2.5vw, 38px); line-height: 1; font-weight: 500; letter-spacing: -.035em; }
.family-overview-copy p { margin: 0 0 18px; color: var(--muted); font-size: 11px; line-height: 1.65; }
.tag-row { display: flex; flex-wrap: wrap; gap: 5px; }
.tag-row span { padding: 6px 8px; border: 1px solid var(--line); border-radius: 99px; color: var(--ink-soft); font-family: var(--font-mono); font-size: 7px; }
.family-overview-link { margin-top: auto; padding-top: 20px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); font-size: 10px; font-weight: 700; }
.family-overview-link svg { width: 18px; height: 18px; color: var(--green); transition: transform .2s ease; }
.family-overview-card:hover .family-overview-link svg { transform: translateX(4px); }
.approach-section { border-top: 1px solid var(--line); }
.principle-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.principle-card { min-height: 260px; padding: 24px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; }
.principle-card > span { color: var(--green); font-family: var(--font-mono); font-size: 9px; }
.principle-card h3 { margin: auto 0 12px; font-family: var(--font-display); font-size: 28px; font-weight: 500; line-height: 1.05; }
.principle-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.home-contact { padding: clamp(72px, 9vw, 120px) var(--pad); background: var(--green-dark); color: #fff; }
.home-contact-inner { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 1.25fr .75fr; gap: 80px; align-items: end; }
.home-contact h2 { margin: 25px 0 20px; font-size: clamp(46px, 5.7vw, 84px); }
.home-contact h2 em { color: #c9f0d8; font-style: normal; }
.home-contact p { max-width: 670px; margin: 0; color: rgba(255,255,255,.62); line-height: 1.75; }
.home-contact-actions { display: grid; gap: 8px; }
.contact-email { margin-top: 12px; font-family: var(--font-display); font-size: clamp(23px, 2.6vw, 34px); }

/* Family page */
.family-hero { max-width: var(--max); margin: 0 auto; padding: 26px var(--pad) 0; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 7px; color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb strong { color: var(--ink); font-weight: 500; }
.family-hero-grid { min-height: 650px; display: grid; grid-template-columns: .9fr 1.1fr; gap: clamp(40px, 7vw, 105px); align-items: center; padding: 55px 0 62px; }
.family-hero-copy h1 { margin: 25px 0 24px; font-family: var(--font-display); font-size: clamp(56px, 6.8vw, 104px); line-height: .92; font-weight: 500; letter-spacing: -.055em; }
.family-hero-copy > p { max-width: 630px; margin: 0 0 22px; color: var(--muted); font-size: clamp(15px, 1.2vw, 17px); line-height: 1.75; }
.family-hero-copy .hero-actions { margin-top: 28px; }
.family-hero-visual { position: relative; min-height: 560px; }
.family-main-image { position: absolute; margin: 0; width: 78%; height: 455px; right: 0; top: 15px; border-radius: 20px; background: var(--surface); border: 1px solid var(--line); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.family-main-image img { width: 90%; height: 90%; object-fit: contain; mix-blend-mode: multiply; }
.family-main-image figcaption { position: absolute; left: 18px; bottom: 14px; padding: 6px 9px; border-radius: 99px; background: rgba(255,255,255,.85); color: var(--muted); font-family: var(--font-mono); font-size: 7px; }
.family-secondary-image { position: absolute; width: 43%; height: 185px; left: 0; bottom: 0; margin: 0; border-radius: 15px; border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); display: grid; place-items: center; overflow: hidden; }
.family-secondary-image img { width: 88%; height: 85%; object-fit: contain; mix-blend-mode: multiply; }
.family-count-chip { position: absolute; right: 0; top: 0; width: 105px; height: 105px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-direction: column; color: #fff; background: var(--green); z-index: 3; }
.family-count-chip strong { font-family: var(--font-display); font-size: 38px; line-height: 1; font-weight: 500; }
.family-count-chip span { font-size: 8px; opacity: .72; }
.family-theme-sage .family-main-image { background: var(--green-soft); }
.family-theme-sand .family-main-image { background: var(--sand); }
.family-theme-blue .family-main-image { background: var(--blue); }
.family-metrics { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.family-metrics div { padding: 22px 24px 24px; border-inline-end: 1px solid var(--line); }
.family-metrics div:last-child { border: 0; }
.family-metrics strong { display: block; font-family: var(--font-display); font-size: clamp(30px, 3.3vw, 48px); font-weight: 500; line-height: 1; letter-spacing: -.04em; }
.family-metrics span { display: block; margin-top: 6px; color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.family-advantages { background: var(--surface); }
.advantage-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.advantage-card { min-height: 300px; padding: 23px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--bg); display: flex; flex-direction: column; }
.advantage-top { display: flex; align-items: center; justify-content: space-between; }
.advantage-top > span:first-child { color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.advantage-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: var(--surface); color: var(--green); border: 1px solid var(--line); }
.advantage-icon svg { width: 19px; height: 19px; }
.advantage-card > strong { margin-top: 34px; color: var(--green); font-family: var(--font-mono); font-size: 9px; font-weight: 500; }
.advantage-card h3 { margin: 10px 0 12px; font-family: var(--font-display); font-size: 27px; line-height: 1.05; font-weight: 500; letter-spacing: -.02em; }
.advantage-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.72; }
.applications-section { border-top: 1px solid var(--line); }
.application-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.application-card { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; background: var(--surface); }
.application-card figure { position: relative; height: 280px; margin: 0; padding: 18px; background: var(--surface-soft); display: grid; place-items: center; overflow: hidden; }
.application-card:nth-child(1) figure { background: var(--green-soft); }
.application-card:nth-child(2) figure { background: var(--sand); }
.application-card:nth-child(3) figure { background: var(--blue); }
.application-card figure img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.application-card figure > span { position: absolute; top: 15px; left: 16px; width: 30px; height: 30px; display: grid; place-items: center; background: rgba(255,255,255,.72); border-radius: 50%; font-family: var(--font-mono); font-size: 7px; }
.application-card > div { padding: 20px 20px 22px; }
.application-card small { color: var(--green); font-family: var(--font-mono); font-size: 8px; letter-spacing: .05em; text-transform: uppercase; }
.application-card h3 { margin: 8px 0 10px; font-family: var(--font-display); font-size: 25px; line-height: 1.06; font-weight: 500; }
.application-card p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.7; }
.catalog-section { background: var(--surface); }
.catalog-head { max-width: var(--max); margin: 0 auto 34px; display: grid; grid-template-columns: 1fr auto; gap: 45px; align-items: end; }
.catalog-head h2 { margin-top: 25px; }
.catalog-head-side { min-width: 340px; display: grid; gap: 12px; justify-items: end; }
.catalog-head-side > span { color: var(--muted); font-family: var(--font-mono); font-size: 8px; text-transform: uppercase; }
.catalog-head-side > span strong { color: var(--ink); font-size: 17px; }
.search-field { width: min(390px, 100%); height: 47px; display: flex; align-items: center; gap: 9px; padding: 0 12px; border: 1px solid var(--line); border-radius: 9px; background: var(--bg); }
.search-icon { color: var(--muted); font-size: 21px; transform: rotate(-20deg); }
.search-field input { min-width: 0; width: 100%; border: 0; background: transparent; outline: 0; font-size: 11px; }
.search-field input::-webkit-search-cancel-button { display: none; }
.search-field button { border: 0; background: transparent; color: var(--muted); font-size: 18px; }
.group-filter-bar { max-width: var(--max); margin: 0 auto 28px; padding: 8px; display: flex; flex-wrap: wrap; gap: 6px; border: 1px solid var(--line); border-radius: 11px; background: var(--bg); }
.group-filter-bar button { min-height: 39px; padding: 0 14px; border: 1px solid transparent; border-radius: 7px; background: transparent; color: var(--muted); font-size: 10px; font-weight: 650; display: flex; align-items: center; gap: 10px; }
.group-filter-bar button span { font-family: var(--font-mono); font-size: 8px; color: #9aa39c; }
.group-filter-bar button.is-active { color: #fff; background: var(--ink); }
.group-filter-bar button.is-active span { color: #c9f0d8; }
.product-results { max-width: var(--max); margin: 0 auto; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.product-card { min-width: 0; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); overflow: hidden; display: flex; flex-direction: column; transition: transform .3s ease, box-shadow .3s ease; }
.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.product-media { position: relative; aspect-ratio: 1.3; width: 100%; border: 0; border-bottom: 1px solid var(--line); background: var(--surface-soft); padding: 15px; overflow: hidden; }
.product-card[data-family="piston"] .product-media, .family-piston-engines .product-media { background: var(--sand); }
.product-card[data-family="turbo"] .product-media { background: var(--blue); }
.product-media img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; transition: transform .45s ease; }
.product-card:hover .product-media img { transform: scale(1.035); }
.product-media-model { position: absolute; left: 12px; top: 12px; padding: 5px 8px; border-radius: 99px; background: rgba(255,255,255,.78); color: var(--ink); font-family: var(--font-mono); font-size: 7px; }
.product-body { padding: 18px 18px 16px; display: flex; flex-direction: column; flex: 1; }
.product-meta { display: flex; justify-content: space-between; gap: 10px; color: var(--muted); font-family: var(--font-mono); font-size: 7px; text-transform: uppercase; }
.product-body h3 { margin: 11px 0 8px; font-family: var(--font-display); font-size: 26px; line-height: 1.03; font-weight: 500; letter-spacing: -.025em; }
.product-body > p { margin: 0 0 14px; color: var(--muted); font-size: 10px; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card-spec-row { display: flex; flex-wrap: wrap; gap: 5px; margin-top: auto; }
.card-spec-row span { padding: 5px 7px; border: 1px solid var(--line); border-radius: 99px; color: var(--ink-soft); font-size: 7px; }
.product-actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 16px; padding-top: 13px; border-top: 1px solid var(--line); }
.link-button { border: 0; background: transparent; padding: 0; display: inline-flex; align-items: center; gap: 9px; font-size: 9px; font-weight: 700; }
.link-button svg { width: 16px; height: 16px; color: var(--green); }
.icon-button { width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line); background: var(--bg); display: grid; place-items: center; font-size: 16px; }
.icon-button.is-added { background: var(--green); color: #fff; border-color: var(--green); }
.product-placeholder { width: 100%; height: 100%; display: grid; place-items: center; color: var(--muted); font-family: var(--font-display); font-size: 34px; }
.product-placeholder.large { font-size: 64px; }
.no-results { min-height: 260px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 15px; border: 1px dashed var(--line-strong); border-radius: var(--radius-sm); background: var(--bg); }
.no-results button { border: 0; background: transparent; text-decoration: underline; }
.jet-group-section { margin-top: 40px; }
.jet-group-section:first-child { margin-top: 0; }
.jet-group-intro { display: grid; grid-template-columns: 1.15fr .85fr; min-height: 380px; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; background: var(--bg); }
.jet-group-media { position: relative; margin: 0; padding: 22px; display: grid; place-items: center; background: var(--blue); overflow: hidden; }
.group-medium .jet-group-media { background: var(--sand); }
.group-heavy .jet-group-media { background: var(--green-soft); }
.jet-group-media img { width: 100%; height: 100%; max-height: 350px; object-fit: contain; mix-blend-mode: multiply; }
.jet-group-media figcaption { position: absolute; left: 16px; bottom: 14px; padding: 5px 8px; border-radius: 99px; background: rgba(255,255,255,.82); color: var(--muted); font-family: var(--font-mono); font-size: 7px; }
.jet-group-copy { padding: 35px; display: flex; flex-direction: column; }
.group-order { color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.jet-group-copy h3 { margin: 18px 0 8px; font-family: var(--font-display); font-size: clamp(34px, 3.4vw, 52px); line-height: 1; font-weight: 500; letter-spacing: -.04em; }
.jet-group-copy > strong { color: var(--green); font-family: var(--font-mono); font-size: 10px; font-weight: 500; }
.jet-group-copy > p { max-width: 480px; margin: 15px 0 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.group-stats { display: flex; gap: 35px; margin-top: auto; padding-top: 24px; border-top: 1px solid var(--line); }
.group-stats div { display: flex; align-items: baseline; gap: 6px; }
.group-stats b { font-family: var(--font-display); font-size: 27px; font-weight: 500; }
.group-stats span { color: var(--muted); font-size: 8px; }
.jet-product-grid { margin-top: 14px; }
.turbo-table { margin-top: 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow-x: auto; background: var(--surface); }
.turbo-table-row { min-width: 980px; width: 100%; display: grid; grid-template-columns: .9fr .7fr 1.2fr .75fr .9fr 1.4fr 22px; align-items: center; gap: 14px; padding: 13px 16px; border: 0; border-bottom: 1px solid var(--line); background: transparent; text-align: left; font-size: 9px; }
.turbo-table-row:last-child { border-bottom: 0; }
.turbo-table-head { color: var(--muted); background: var(--bg); font-family: var(--font-mono); font-size: 7px; text-transform: uppercase; letter-spacing: .06em; }
button.turbo-table-row:hover { background: var(--surface-soft); }
.turbo-table-row strong { font-family: var(--font-display); font-size: 19px; font-weight: 500; }
.turbo-table-row span:nth-child(2) { color: var(--green); font-family: var(--font-display); font-size: 17px; }
.turbo-table-row svg { width: 16px; height: 16px; color: var(--muted); }
.related-section { max-width: var(--max); margin: 0 auto; padding: 58px var(--pad) 82px; display: grid; grid-template-columns: .75fr 1.25fr; gap: 70px; align-items: end; }
.related-section h2 { margin-top: 20px; font-size: clamp(36px, 4vw, 58px); }
.related-links { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.related-links a { min-height: 130px; padding: 18px; display: grid; grid-template-columns: 1fr auto; align-content: space-between; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.related-links a span { font-family: var(--font-display); font-size: 24px; }
.related-links a small { color: var(--muted); font-family: var(--font-mono); font-size: 8px; }
.related-links a svg { grid-column: 2; grid-row: 1 / span 2; width: 20px; height: 20px; align-self: center; color: var(--green); }
.family-contact { padding: clamp(65px, 8vw, 105px) var(--pad); background: var(--green-dark); color: #fff; display: grid; grid-template-columns: 1.2fr .8fr; gap: 80px; align-items: end; }
.family-contact > * { width: 100%; max-width: 640px; }
.family-contact h2 { color: #fff; margin: 22px 0 16px; font-size: clamp(42px, 5vw, 72px); }
.family-contact p { margin: 0; color: rgba(255,255,255,.62); line-height: 1.75; }
.family-contact-actions { justify-self: end; display: grid; gap: 8px; max-width: 420px; }
.family-contact .contact-email { color: #fff; margin-top: 9px; }

/* Footer */
.site-footer { padding: 58px var(--pad) 28px; background: #eff1eb; border-top: 1px solid var(--line); }
.footer-main { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: 1.3fr .65fr .65fr; gap: 70px; padding-bottom: 42px; }
.footer-brand-block p { max-width: 420px; margin: 18px 0 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.footer-column { display: grid; align-content: start; gap: 9px; }
.footer-column > span { margin-bottom: 4px; color: var(--muted); font-family: var(--font-mono); font-size: 7px; letter-spacing: .1em; text-transform: uppercase; }
.footer-column a { color: var(--ink-soft); font-size: 10px; }
.footer-column a:hover { color: var(--green); }
.footer-bottom { max-width: var(--max); margin: 0 auto; padding-top: 22px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr auto; gap: 35px; align-items: end; }
.footer-bottom p { max-width: 900px; margin: 0; color: var(--muted); font-size: 8px; line-height: 1.7; }
.footer-bottom span { color: var(--muted); font-family: var(--font-mono); font-size: 7px; white-space: nowrap; }

/* Modal */
.modal { width: min(1180px, calc(100vw - 28px)); max-height: calc(100vh - 28px); padding: 0; border: 0; border-radius: 17px; background: var(--surface); color: var(--ink); overflow: hidden; }
.modal::backdrop { background: rgba(17,25,21,.55); backdrop-filter: blur(7px); }
.modal[open] { animation: modalIn .3s cubic-bezier(.2,.7,.2,1); }
@keyframes modalIn { from { opacity: 0; transform: translateY(18px) scale(.985); } to { opacity: 1; transform: none; } }
.modal-panel { max-height: calc(100vh - 28px); overflow-y: auto; }
.modal-head { position: sticky; top: 0; z-index: 10; min-height: 56px; padding: 0 18px; display: flex; align-items: center; justify-content: space-between; gap: 20px; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); color: var(--muted); font-family: var(--font-mono); font-size: 8px; text-transform: uppercase; }
.modal-close { width: 32px; height: 32px; border: 1px solid var(--line); border-radius: 50%; background: transparent; padding: 7px; }
.modal-close svg { width: 100%; height: 100%; }
.product-detail-layout { display: grid; grid-template-columns: .9fr 1.1fr; }
.product-detail-media { padding: 30px; background: var(--surface-soft); border-inline-end: 1px solid var(--line); display: flex; flex-direction: column; }
.product-detail-media figure { flex: 1; min-height: 460px; margin: 0; display: grid; place-items: center; }
.product-detail-media img { width: 100%; height: 100%; max-height: 520px; object-fit: contain; mix-blend-mode: multiply; }
.product-detail-media > p { margin: 10px 0 0; color: var(--muted); font-family: var(--font-mono); font-size: 7px; text-align: center; }
.product-detail-copy { padding: 44px clamp(26px, 4vw, 56px) 42px; }
.product-detail-copy h2 { margin: 24px 0 16px; font-family: var(--font-display); font-size: clamp(38px, 4.3vw, 58px); line-height: .98; font-weight: 500; letter-spacing: -.04em; }
.detail-lead { margin: 0 0 20px; color: var(--muted); font-size: 12px; line-height: 1.75; }
.detail-highlights { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 24px; }
.detail-highlights span { padding: 6px 8px; border: 1px solid var(--line); border-radius: 99px; font-size: 7px; }
.detail-spec-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.detail-spec-grid div { min-height: 58px; padding: 9px 11px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.detail-spec-grid span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 7px; line-height: 1.3; }
.detail-spec-grid strong { font-size: 9px; line-height: 1.4; }
.detail-actions { display: flex; gap: 8px; margin-top: 22px; }
.detail-note { margin: 18px 0 0; padding-top: 13px; border-top: 1px solid var(--line); color: var(--muted); font-size: 7px; line-height: 1.65; }
.inquiry-panel { width: 100%; }
.inquiry-layout { display: grid; grid-template-columns: 1.35fr .65fr; }
.inquiry-main { padding: 38px clamp(22px, 4vw, 52px) 42px; }
.section-heading.compact { margin: 0 0 22px; }
.section-heading.compact h2 { margin: 18px 0 10px; font-size: clamp(34px, 4vw, 52px); }
.section-heading.compact p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.65; }
.inquiry-selected { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; padding: 12px; border: 1px dashed var(--line-strong); border-radius: 9px; }
.inquiry-selected > span { display: inline-flex; align-items: center; gap: 7px; padding: 4px 4px 4px 9px; border-radius: 99px; background: var(--ink); color: #fff; font-family: var(--font-mono); font-size: 8px; }
.inquiry-selected button { width: 22px; height: 22px; border: 0; border-radius: 50%; display: grid; place-items: center; background: #fff; color: var(--ink); }
.inquiry-selected p { margin: 0; color: var(--muted); font-size: 10px; }
.inquiry-form { display: grid; gap: 11px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 11px; }
.inquiry-form label { display: grid; gap: 5px; }
.inquiry-form label > span { color: var(--muted); font-family: var(--font-mono); font-size: 7px; }
.inquiry-form input, .inquiry-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 7px; background: var(--bg); padding: 10px 11px; font-size: 10px; resize: vertical; }
.inquiry-form input:focus, .inquiry-form textarea:focus { outline: 0; border-color: var(--green); background: #fff; }
.form-actions { display: flex; gap: 8px; margin-top: 4px; }
.form-note { margin: 0; color: var(--muted); font-size: 7px; line-height: 1.6; }
.inquiry-aside { padding: 38px 28px; background: var(--green-dark); color: #fff; }
.inquiry-aside > span { color: rgba(255,255,255,.45); font-family: var(--font-mono); font-size: 7px; text-transform: uppercase; }
.inquiry-aside > a { display: block; margin: 9px 0 18px; font-family: var(--font-display); font-size: 20px; overflow-wrap: anywhere; }
.inquiry-aside > p { margin: 0 0 28px; color: rgba(255,255,255,.58); font-size: 9px; line-height: 1.7; }
.inquiry-steps { border-top: 1px solid rgba(255,255,255,.15); }
.inquiry-steps div { display: grid; grid-template-columns: 26px 1fr; gap: 8px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.15); }
.inquiry-steps span { color: #c9f0d8; font-family: var(--font-mono); font-size: 8px; }
.inquiry-steps p { margin: 0; font-size: 9px; }
.toast { position: fixed; z-index: 500; left: 50%; bottom: 22px; transform: translate(-50%, 15px); max-width: min(430px, calc(100vw - 30px)); padding: 11px 15px; border-radius: 8px; background: var(--ink); color: #fff; box-shadow: 0 14px 40px rgba(0,0,0,.18); font-size: 10px; text-align: center; opacity: 0; pointer-events: none; transition: .2s ease; }
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }
.missing-page { min-height: 65vh; padding: 120px var(--pad); display: grid; place-content: center; justify-items: center; gap: 20px; }

/* RTL */
html[dir="rtl"] body { font-family: Tahoma, "Segoe UI", "Noto Naskh Arabic", "Microsoft YaHei", sans-serif; }
html[dir="rtl"] .home-hero h1, html[dir="rtl"] .section-heading h2, html[dir="rtl"] .family-hero-copy h1,
html[dir="rtl"] .family-overview-copy h3, html[dir="rtl"] .advantage-card h3, html[dir="rtl"] .application-card h3,
html[dir="rtl"] .product-body h3, html[dir="rtl"] .jet-group-copy h3, html[dir="rtl"] .product-detail-copy h2,
html[dir="rtl"] .section-heading.compact h2, html[dir="rtl"] .family-contact h2, html[dir="rtl"] .home-contact h2 {
  font-family: Tahoma, "Segoe UI", "Noto Naskh Arabic", sans-serif; letter-spacing: 0; line-height: 1.14;
}
html[dir="rtl"] .turbo-table-row { text-align: right; }
html[dir="rtl"] .turbo-table-row svg { transform: scaleX(-1); }
html[dir="rtl"] .link-button svg, html[dir="rtl"] .family-overview-link svg, html[dir="rtl"] .button svg { transform: scaleX(-1); }

/* Responsive */
@media (max-width: 1180px) {
  .desktop-nav { display: none; }
  .menu-button { display: block; }
  .home-hero { grid-template-columns: 1fr 1fr; }
  .family-overview-card, .family-overview-card:nth-child(1), .family-overview-card:nth-child(2), .family-overview-card:nth-child(3) { grid-column: span 4; min-height: 580px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .family-hero-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .home-hero { grid-template-columns: 1fr; min-height: 0; padding-top: 70px; }
  .home-hero-visual { min-height: 510px; max-width: 580px; width: 100%; margin: 0 auto; }
  .stat-band { grid-template-columns: repeat(2, 1fr); }
  .stat-band div:nth-child(2) { border-inline-end: 0; }
  .stat-band div:nth-child(3), .stat-band div:nth-child(4) { border-top: 1px solid var(--line); }
  .section-heading-grid { grid-template-columns: 1fr; gap: 20px; }
  .family-overview-grid { grid-template-columns: 1fr; }
  .family-overview-card, .family-overview-card:nth-child(1), .family-overview-card:nth-child(2), .family-overview-card:nth-child(3) { grid-column: auto; min-height: 0; }
  .family-overview-media { min-height: 280px; }
  .principle-grid, .advantage-grid, .application-grid { grid-template-columns: 1fr; }
  .principle-card { min-height: 210px; }
  .advantage-card { min-height: 230px; }
  .application-card figure { height: 330px; }
  .home-contact-inner, .family-contact { grid-template-columns: 1fr; gap: 38px; }
  .family-contact-actions { justify-self: start; }
  .family-hero-grid { grid-template-columns: 1fr; min-height: 0; padding-top: 38px; }
  .family-hero-visual { min-height: 540px; max-width: 600px; width: 100%; }
  .catalog-head { grid-template-columns: 1fr; gap: 22px; }
  .catalog-head-side { min-width: 0; justify-items: stretch; }
  .search-field { width: 100%; }
  .jet-group-intro { grid-template-columns: 1fr; }
  .jet-group-media { min-height: 300px; }
  .jet-group-copy { min-height: 300px; }
  .related-section { grid-template-columns: 1fr; gap: 30px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand-block { grid-column: 1 / -1; }
  .product-detail-layout { grid-template-columns: 1fr; }
  .product-detail-media { border-inline-end: 0; border-bottom: 1px solid var(--line); }
  .product-detail-media figure { min-height: 330px; }
  .inquiry-layout { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  html { scroll-padding-top: 82px; }
  .site-header { height: 68px; padding-inline: 15px; gap: 8px; }
  .brand-mark { width: 30px; height: 30px; }
  .brand-copy strong { font-size: 14px; }
  .brand-copy small { display: none; }
  .language-switch { display: none; }
  .mobile-language-select { display: block; }
  .inquiry-button { height: 34px; padding-left: 10px; }
  .inquiry-button > span:first-child { display: none; }
  .family-subnav { justify-content: flex-start; overflow-x: auto; padding-inline: 14px; scrollbar-width: none; }
  .family-subnav::-webkit-scrollbar { display: none; }
  .family-subnav a { flex: none; padding: 0 12px; }
  .home-hero { padding: 55px 16px 55px; }
  .home-hero h1 { font-size: clamp(53px, 15vw, 76px); }
  .home-hero-copy > p { font-size: 14px; }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .home-hero-visual { min-height: 410px; }
  .hero-image-large { width: 70%; right: 2%; }
  .hero-image-large img { height: 300px; }
  .hero-image-small { width: 50%; }
  .hero-image-small img { height: 110px; }
  .hero-data-chip { width: 88px; height: 88px; right: 0; bottom: 3%; }
  .hero-data-chip strong { font-size: 31px; }
  .hero-ring { width: 330px; height: 330px; right: -80px; }
  .stat-band div { min-height: 92px; padding: 16px; }
  .stat-band strong { font-size: 31px; }
  .section { padding: 68px 16px; }
  .section-heading { margin-bottom: 30px; }
  .section-heading h2, .catalog-head h2, .related-section h2, .family-contact h2 { font-size: clamp(38px, 11vw, 56px); }
  .family-overview-card { border-radius: 13px; }
  .family-overview-media { min-height: 235px; }
  .family-overview-media img { height: 210px; }
  .home-contact { padding: 65px 16px; }
  .home-contact h2 { font-size: 42px; }
  .family-hero { padding: 20px 16px 0; }
  .family-hero-grid { padding: 34px 0 45px; }
  .family-hero-copy h1 { font-size: clamp(46px, 13vw, 68px); }
  .family-hero-visual { min-height: 410px; }
  .family-main-image { height: 320px; width: 83%; }
  .family-secondary-image { height: 130px; width: 44%; }
  .family-count-chip { width: 82px; height: 82px; }
  .family-count-chip strong { font-size: 29px; }
  .family-metrics { grid-template-columns: 1fr; }
  .family-metrics div { padding: 16px; border-inline-end: 0; border-bottom: 1px solid var(--line); }
  .family-metrics div:last-child { border-bottom: 0; }
  .advantage-card { min-height: 220px; }
  .application-card figure { height: 240px; }
  .catalog-section { padding-inline: 16px; }
  .group-filter-bar { padding: 6px; overflow-x: auto; flex-wrap: nowrap; }
  .group-filter-bar button { flex: none; }
  .product-grid { grid-template-columns: 1fr; }
  .product-media { aspect-ratio: 1.35; }
  .jet-group-section { margin-top: 28px; }
  .jet-group-media { min-height: 230px; padding: 14px; }
  .jet-group-copy { min-height: 260px; padding: 23px 19px; }
  .jet-group-copy h3 { font-size: 36px; }
  .related-section { padding: 50px 16px 62px; }
  .related-links { grid-template-columns: 1fr; }
  .family-contact { padding: 62px 16px; }
  .footer-main { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { grid-template-columns: 1fr; gap: 12px; }
  .footer-bottom span { white-space: normal; }
  .site-footer { padding: 45px 16px 25px; }
  .modal { width: calc(100vw - 12px); max-height: calc(100vh - 12px); border-radius: 12px; }
  .modal-panel { max-height: calc(100vh - 12px); }
  .product-detail-copy { padding: 30px 17px 34px; }
  .product-detail-copy h2 { font-size: 37px; }
  .detail-spec-grid { grid-template-columns: 1fr; }
  .detail-actions { display: grid; grid-template-columns: 1fr; }
  .inquiry-main { padding: 28px 16px 32px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-actions { display: grid; grid-template-columns: 1fr; }
  .inquiry-aside { padding: 30px 20px; }
  .breadcrumb { font-size: 7px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
}


/* Small turbojet source images: show on a clean white plate for maximum clarity */
.product-card[data-family="turbo"] .product-media {
  background: #eef3f4;
  padding: 12px;
}
.product-card[data-family="turbo"] .product-media img {
  width: 100%;
  height: 100%;
  padding: 4px;
  border-radius: 8px;
  background: #fff;
  mix-blend-mode: normal;
  object-fit: contain;
}

/* Refined typography and visual rhythm */
:root {
  --font-display: "Aptos Display", "Segoe UI Variable Display", "Helvetica Neue", "Microsoft YaHei UI", sans-serif;
  --font-body: "Aptos", "Segoe UI Variable Text", "Helvetica Neue", "Microsoft YaHei UI", sans-serif;
}
body { font-size: 16px; line-height: 1.65; letter-spacing: -.006em; }
.site-header { height: 82px; }
.brand-copy strong { font-size: 17px; letter-spacing: .14em; }
.brand-copy small { font-size: 8px; letter-spacing: .17em; }
.desktop-nav a { font-size: 12px; font-weight: 620; letter-spacing: .025em; }
.language-switch button { font-size: 9px; }
.inquiry-button { min-height: 39px; font-size: 11px; }
.family-subnav a { font-size: 11px; }
.family-subnav a small { font-size: 8px; }
.eyebrow { font-size: 9.5px; letter-spacing: .11em; }
.eyebrow > span:first-child { font-size: 9px; }
.button { min-height: 54px; padding-inline: 21px; font-size: 12.5px; letter-spacing: .025em; }
.home-hero { min-height: 720px; padding-top: clamp(66px, 7vw, 98px); padding-bottom: 74px; }
.home-hero h1 { font-size: clamp(52px, 5.9vw, 92px); line-height: 1.01; letter-spacing: -.045em; }
.home-hero-copy > p { max-width: 700px; font-size: clamp(16px, 1.35vw, 19px); line-height: 1.8; }
.hero-note { font-size: 9.5px; line-height: 1.5; }
.hero-image-large figcaption span, .hero-image-small figcaption span { font-size: 21px; }
.hero-image-large figcaption small, .hero-image-small figcaption small { font-size: 8px; }
.hero-data-chip span { font-size: 9px; }
.stat-band strong { font-size: clamp(34px, 3vw, 47px); }
.stat-band span { font-size: 9px; line-height: 1.45; }
.section-heading h2, .catalog-head h2, .related-section h2, .family-contact h2 { font-size: clamp(38px, 4.2vw, 66px); line-height: 1.02; letter-spacing: -.038em; }
.section-heading-grid p { max-width: 540px; font-size: 16px; line-height: 1.8; }
.family-overview-top { font-size: 9px; line-height: 1.55; }
.family-overview-copy h3 { font-size: clamp(27px, 2.2vw, 35px); }
.family-overview-copy p { font-size: 13px; line-height: 1.75; }
.tag-row span { font-size: 8.5px; padding: 7px 9px; line-height: 1.25; }
.family-overview-link { font-size: 12px; }
.principle-card h3 { font-size: 26px; line-height: 1.12; }
.principle-card p { font-size: 13.5px; line-height: 1.8; }
.home-contact h2 { font-size: clamp(42px, 4.6vw, 72px); line-height: 1.03; }
.home-contact p { font-size: 16px; line-height: 1.8; }
.contact-email { font-size: clamp(22px, 2.3vw, 31px); }
.family-hero-grid { padding-top: 64px; padding-bottom: 58px; }
.family-hero-copy h1 { font-size: clamp(48px, 5.4vw, 82px); line-height: 1; letter-spacing: -.045em; }
.family-hero-copy > p { font-size: clamp(16px, 1.2vw, 18px); line-height: 1.8; }
.family-metrics span { font-size: 9px; line-height: 1.45; }
.advantage-card { min-height: 330px; padding: 26px; }
.advantage-card > strong { font-size: 10px; }
.advantage-card h3 { font-size: 25px; line-height: 1.1; }
.advantage-card p { font-size: 13px; line-height: 1.8; }
.application-card small { font-size: 9px; }
.application-card h3 { font-size: 24px; line-height: 1.12; }
.application-card p { font-size: 13px; line-height: 1.8; }
.catalog-head-side > span { font-size: 9px; }
.search-field { height: 50px; }
.search-field input { font-size: 12.5px; }
.group-filter-bar button { min-height: 42px; font-size: 11px; }
.group-filter-bar button span { font-size: 9px; }
.product-meta { font-size: 8.5px; line-height: 1.45; }
.product-body h3 { font-size: 25px; line-height: 1.08; }
.product-body > p { font-size: 13px; line-height: 1.75; }
.card-spec-row span { font-size: 8.5px; line-height: 1.35; }
.link-button { font-size: 11px; }
.icon-button { width: 40px; height: 40px; }
.jet-group-copy { padding: 38px; }
.group-order { font-size: 9px; }
.jet-group-copy h3 { font-size: clamp(33px, 3vw, 46px); line-height: 1.04; }
.jet-group-copy > strong { font-size: 12px; }
.jet-group-copy > p { font-size: 13.5px; line-height: 1.8; }
.group-stats b { font-size: 29px; }
.group-stats span { font-size: 9px; }
.turbo-table-row { min-width: 1040px; grid-template-columns: .85fr .65fr 1.15fr .7fr .9fr 1.35fr 22px; gap: 16px; padding: 15px 18px; font-size: 11px; line-height: 1.45; }
.turbo-table-head { font-size: 8.5px; letter-spacing: .05em; }
.turbo-table-row strong { font-size: 18px; }
.turbo-table-row span:nth-child(2) { font-size: 16px; }
.related-links a span { font-size: 23px; line-height: 1.2; }
.related-links a small { font-size: 9px; }
.family-contact p { font-size: 16px; line-height: 1.8; }
.footer-brand-block p { font-size: 12px; line-height: 1.75; }
.footer-column > span { font-size: 8px; }
.footer-column a { font-size: 11.5px; }
.footer-bottom p { font-size: 9px; line-height: 1.75; }
.footer-bottom span { font-size: 8px; }
.modal-head { font-size: 9px; }
.product-detail-copy h2 { font-size: clamp(34px, 3.8vw, 51px); line-height: 1.03; }
.detail-lead { font-size: 13px; line-height: 1.82; }
.detail-highlights span { font-size: 8.5px; }
.detail-spec-grid span { font-size: 8.5px; }
.detail-spec-grid strong { font-size: 11.5px; line-height: 1.5; }
.detail-note { font-size: 8.5px; line-height: 1.7; }
.section-heading.compact p { font-size: 12px; line-height: 1.75; }
.inquiry-selected p, .inquiry-form label > span { font-size: 9px; }
.inquiry-form input, .inquiry-form textarea { font-size: 12px; padding: 11px 12px; }
.inquiry-aside > p, .inquiry-steps p { font-size: 10.5px; line-height: 1.7; }
.inquiry-aside > a { font-size: 21px; }
.toast { font-size: 11px; }
html[lang="ru"] .home-hero h1 { font-size: clamp(44px, 5.1vw, 78px); line-height: 1.06; }
html[lang="ru"] .family-hero-copy h1 { font-size: clamp(42px, 4.8vw, 72px); }
html[dir="rtl"] .home-hero h1 { font-size: clamp(45px, 5.2vw, 80px); line-height: 1.2; }
html[dir="rtl"] .family-hero-copy h1 { font-size: clamp(40px, 4.7vw, 68px); line-height: 1.2; }
html[dir="rtl"] .family-overview-copy p,
html[dir="rtl"] .advantage-card p,
html[dir="rtl"] .application-card p,
html[dir="rtl"] .product-body > p,
html[dir="rtl"] .jet-group-copy > p { line-height: 1.9; }
@media (max-width: 680px) {
  body { font-size: 15px; }
  .site-header { height: 70px; }
  .brand-copy strong { font-size: 15px; }
  .home-hero h1 { font-size: clamp(42px, 11.5vw, 60px); line-height: 1.08; }
  .home-hero-copy > p { font-size: 15px; line-height: 1.8; }
  .section-heading h2, .catalog-head h2, .related-section h2, .family-contact h2 { font-size: clamp(34px, 9.5vw, 48px); line-height: 1.08; }
  .section-heading-grid p { font-size: 14px; line-height: 1.8; }
  .family-overview-copy p { font-size: 12.5px; }
  .application-card p, .advantage-card p { font-size: 12.5px; }
  .family-hero-copy h1 { font-size: clamp(40px, 11vw, 56px); line-height: 1.1; }
  .family-hero-copy > p { font-size: 15px; }
  .product-body > p { font-size: 12.5px; }
  .turbo-table-row { min-width: 900px; font-size: 10px; }
  .detail-lead { font-size: 12.5px; }
}

.group-light .jet-group-intro { min-height: 500px; }
.group-light .jet-group-media { padding: 14px; }
.group-light .jet-group-media img { width: 100%; height: 100%; max-height: none; object-fit: cover; border-radius: 10px; mix-blend-mode: normal; }
.group-light .jet-group-copy { padding: clamp(28px, 3.4vw, 48px); }
.group-light .jet-group-copy > p { max-width: 520px; }
@media (max-width: 900px) {
  .group-light .jet-group-intro { min-height: 0; }
  .group-light .jet-group-media { min-height: 330px; }
}
@media (max-width: 680px) {
  .group-light .jet-group-media { min-height: 220px; padding: 8px; }
}

/* Hero title hierarchy: strapline + two strong headline lines */
.home-hero h1 {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  line-height: 1;
}
.home-hero .hero-pretitle {
  display: block;
  margin-bottom: .62em;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: clamp(16px, .3em, 28px);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: .12em;
}
.home-hero .hero-line {
  display: block;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1em;
  font-weight: 550;
  line-height: .94;
  letter-spacing: -.045em;
  white-space: nowrap;
}
.home-hero .hero-line-accent { color: var(--green); }
.home-hero .hero-line + .hero-line { margin-top: .025em; }
html[dir="rtl"] .home-hero .hero-pretitle { letter-spacing: 0; }
html[dir="rtl"] .home-hero .hero-line { line-height: 1.14; letter-spacing: 0; }
html[lang="ru"] .home-hero .hero-pretitle { max-width: 650px; }
@media (max-width: 680px) {
  .home-hero .hero-pretitle { margin-bottom: .7em; font-size: clamp(15px, .31em, 19px); letter-spacing: .08em; }
  .home-hero .hero-line { line-height: .98; }
}

/* Industry mission gallery */
.missions-section { background: #eef1eb; border-block: 1px solid var(--line); }
.mission-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.mission-card { position: relative; overflow: hidden; min-height: 420px; border-radius: 14px; background: #dfe5de; isolation: isolate; }
.mission-card:nth-child(1) { grid-column: span 7; min-height: 520px; }
.mission-card:nth-child(2) { grid-column: span 5; min-height: 520px; }
.mission-card:nth-child(3) { grid-column: span 5; min-height: 400px; }
.mission-card:nth-child(4) { grid-column: span 7; min-height: 400px; }
.mission-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.mission-card:hover img { transform: scale(1.035); }
.mission-card::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(8,18,14,.03) 20%, rgba(8,18,14,.52) 65%, rgba(8,18,14,.9) 100%); }
.mission-overlay { position: relative; z-index: 2; height: 100%; min-height: inherit; padding: 22px; display: flex; flex-direction: column; justify-content: space-between; color: #fff; }
.mission-index { align-self: flex-start; width: 35px; height: 35px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.45); border-radius: 50%; background: rgba(0,0,0,.14); backdrop-filter: blur(7px); font-family: var(--font-mono); font-size: 8px; }
.mission-overlay > div { max-width: 580px; }
.mission-overlay small { color: #d5ecdc; font-family: var(--font-mono); font-size: 9px; letter-spacing: .09em; text-transform: uppercase; }
.mission-overlay h3 { margin: 8px 0 10px; font-family: var(--font-display); font-size: clamp(28px, 3vw, 42px); font-weight: 550; line-height: 1.04; letter-spacing: -.035em; }
.mission-overlay p { margin: 0; color: rgba(255,255,255,.77); font-size: 13px; line-height: 1.75; }
.mission-overlay > a { align-self: flex-start; margin-top: 16px; color: rgba(255,255,255,.52); font-family: var(--font-mono); font-size: 7px; text-decoration: underline; text-underline-offset: 3px; }
.mission-footnote { max-width: var(--max); margin: 18px auto 0; color: var(--muted); font-size: 9px; line-height: 1.6; }
.mission-footnote a { color: var(--green); font-weight: 650; text-decoration: underline; text-underline-offset: 3px; }
html[dir="rtl"] .mission-overlay h3 { letter-spacing: 0; line-height: 1.25; }
@media (max-width: 900px) {
  .mission-card, .mission-card:nth-child(1), .mission-card:nth-child(2), .mission-card:nth-child(3), .mission-card:nth-child(4) { grid-column: span 6; min-height: 370px; }
  .mission-card:nth-child(1), .mission-card:nth-child(2) { min-height: 450px; }
}
@media (max-width: 680px) {
  .mission-card, .mission-card:nth-child(1), .mission-card:nth-child(2), .mission-card:nth-child(3), .mission-card:nth-child(4) { grid-column: 1 / -1; min-height: 330px; }
  .mission-overlay { padding: 18px; }
  .mission-overlay h3 { font-size: 29px; }
  .mission-overlay p { font-size: 12.5px; }
}

/* Credits page */
.footer-legal { display: grid; gap: 9px; }
.footer-legal > a { width: max-content; color: var(--green); font-size: 9px; font-weight: 650; text-decoration: underline; text-underline-offset: 3px; }
.credits-page { max-width: 1120px; margin: 0 auto; padding: 44px var(--pad) 100px; }
.credits-heading { margin: 54px 0 46px; }
.credits-heading h1 { margin: 22px 0 18px; font-family: var(--font-display); font-size: clamp(44px, 6vw, 78px); line-height: 1; font-weight: 550; letter-spacing: -.045em; }
.credits-heading p { max-width: 680px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; }
.credits-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.credit-card { overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.credit-card img { width: 100%; height: 250px; object-fit: cover; }
.credit-card > div { padding: 18px; }
.credit-card h2 { margin: 0 0 6px; font-family: var(--font-display); font-size: 21px; line-height: 1.12; font-weight: 550; }
.credit-card p { margin: 0 0 12px; color: var(--muted); font-size: 11px; }
.credit-card a { color: var(--green); font-size: 10px; font-weight: 650; }
.credits-back { margin-top: 32px; }
@media (max-width: 680px) {
  .credits-page { padding: 30px 16px 70px; }
  .credits-heading { margin: 38px 0 30px; }
  .credits-grid { grid-template-columns: 1fr; }
  .credit-card img { height: 210px; }
}

/* Engineering selection checklist */
.engineering-section { padding: clamp(74px, 8vw, 118px) var(--pad); background: var(--surface); border-top: 1px solid var(--line); }
.engineering-heading { max-width: var(--max); margin: 0 auto 36px; display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: end; }
.engineering-heading h2 { margin: 22px 0 0; font-family: var(--font-display); font-size: clamp(36px, 4.1vw, 62px); font-weight: 550; line-height: 1.02; letter-spacing: -.04em; }
.engineering-heading h2 em { color: var(--green); font-style: normal; }
.engineering-heading > p { max-width: 520px; margin: 0 0 5px; color: var(--muted); font-size: 15px; line-height: 1.8; }
.engineering-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.engineering-grid article { min-height: 230px; padding: 22px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); display: flex; flex-direction: column; }
.engineering-grid article > span { color: var(--green); font-family: var(--font-mono); font-size: 9px; }
.engineering-grid h3 { margin: auto 0 10px; font-family: var(--font-display); font-size: 22px; line-height: 1.1; font-weight: 550; }
.engineering-grid p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.engineering-cta { max-width: var(--max); margin: 20px auto 0; padding: 18px 20px; display: flex; align-items: center; justify-content: space-between; gap: 24px; background: var(--bg); border: 1px solid var(--line); border-radius: 9px; }
.engineering-cta p { margin: 0; color: var(--muted); font-size: 10px; }
@media (max-width: 900px) {
  .engineering-heading { grid-template-columns: 1fr; gap: 18px; }
  .engineering-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .engineering-section { padding: 66px 16px; }
  .engineering-grid { grid-template-columns: 1fr; }
  .engineering-grid article { min-height: 190px; }
  .engineering-cta { align-items: flex-start; flex-direction: column; }
}

/* Contact channels and WhatsApp QR */
.contact-qr-block {
  margin-top: 16px; padding: 14px; display: grid; grid-template-columns: 1fr 112px; gap: 12px;
  align-items: center; background: #fff; color: var(--ink); border: 1px solid rgba(255,255,255,.35);
  border-radius: 9px;
}
.contact-qr-copy { display: grid; gap: 5px; }
.contact-qr-copy > span { color: var(--green); font-family: var(--font-mono); font-size: 8px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.contact-qr-copy strong { font-family: var(--font-display); font-size: 15px; line-height: 1.2; font-weight: 550; }
.contact-qr-copy small { max-width: 240px; color: var(--muted); font-size: 8px; line-height: 1.55; }
.contact-qr-image { display: block; width: 112px; padding: 4px; background: #fff; border: 1px solid var(--line); border-radius: 6px; }
.contact-qr-image img { width: 100%; height: auto; display: block; border-radius: 4px; }
.contact-qr-link { grid-column: 1 / -1; width: max-content; color: var(--green); font-size: 9px; font-weight: 650; text-decoration: underline; text-underline-offset: 3px; }
.contact-qr-block.compact { margin-top: 24px; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.2); color: #fff; grid-template-columns: 1fr 88px; }
.contact-qr-block.compact .contact-qr-copy > span { color: #c9f0d8; }
.contact-qr-block.compact .contact-qr-copy strong { font-size: 15px; color: #fff; }
.contact-qr-block.compact .contact-qr-copy small { color: rgba(255,255,255,.58); font-size: 8px; }
.contact-qr-block.compact .contact-qr-image { width: 88px; background: #fff; }
.contact-qr-block.compact .contact-qr-link { color: #d5ecdc; font-size: 8px; }
@media (max-width: 680px) {
  .contact-qr-block { grid-template-columns: 1fr 104px; }
  .contact-qr-image { width: 104px; }
  .contact-qr-copy strong { font-size: 15px; }
}

/* Dedicated SEO model-page links */
.product-action-links { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.product-page-link { color: var(--green); }
.detail-actions { flex-wrap: wrap; }
@media (max-width: 700px) { .product-action-links { max-width: calc(100% - 46px); } }