@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap");

:root {
  --ink: #0a1b34;
  --ink-soft: #27374e;
  --paper: #f8f6f2;
  --white: #fff;
  --stone: #e9e4dc;
  --blue: #8edcf3;
  --line: rgba(10, 27, 52, .12);
  --shadow: 0 24px 60px rgba(20, 28, 38, .12);
  --radius: 22px;
  --display: "Manrope", "Segoe UI", sans-serif;
  --body: "Manrope", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: hidden; color: var(--ink); background: var(--white); font-family: var(--body); line-height: 1.55; }
body.menu-open { overflow: hidden; }
body::after { content: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.section-shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.section { padding-block: 110px; }

.site-header { height: 76px; padding: 0 max(24px, calc((100vw - 1180px)/2)); display: flex; align-items: center; gap: 36px; background: rgba(248, 246, 242, .9); backdrop-filter: blur(15px); position: sticky; top: 0; z-index: 50; border-bottom: 1px solid rgba(10, 27, 52, .06); }
.brand { font-size: 26px; font-weight: 700; white-space: nowrap; }
.brand span { font-size: 9px; vertical-align: top; margin-left: 2px; letter-spacing: 0; }
.desktop-nav { display: flex; gap: 28px; margin-left: auto; font-size: 13px; font-weight: 700; }
.desktop-nav a { position: relative; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; bottom: -8px; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .25s; }
.desktop-nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.header-cta { padding: 11px 20px; background: var(--ink); color: white; font-size: 12px; font-weight: 700; border-radius: 4px; transition: background .2s, border-color .2s, color .2s, transform .2s, box-shadow .2s; }
.header-cta:hover { background-color: var(--ink-soft); color: white; transform: translateY(-1px); box-shadow: 0 10px 24px rgba(10,27,52,.14); }
.header-cta:active { background-color: var(--ink); transform: translateY(0); box-shadow: none; }
.menu-toggle, .mobile-nav { display: none; }

.hero { --hero-image: url("../img/avinova-hero.png"); align-items: center; }
.hero,
.product-hero { position: relative; isolation: isolate; min-height: 700px; display: flex; overflow: hidden; background: white; }
.hero::before,
.product-hero::before,
.hero::after,
.product-hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; }
.hero::before,
.product-hero::before { z-index: -2; background: var(--hero-image) 68% center/cover no-repeat; }
.hero::after,
.product-hero::after { z-index: -1; background: linear-gradient(90deg, rgba(251,250,248,.98) 0%, rgba(251,250,248,.74) 48%, rgba(251,250,248,.35) 70%, rgba(251,250,248,0) 86%); }
.hero-copy { width: min(1180px, calc(100% - 48px)); margin-inline: auto; padding: 54px 0 60px; }
.hero-brand { display: inline-block; font-size: 46px; line-height: 1; }
.hero h1, h2, .product-title { font-family: var(--display); font-weight: 400; letter-spacing: -.035em; }
.hero h1 { margin: 25px 0 18px; font-size: 42px; line-height: 1.15; font-weight: 700; }
.hero-lead { color: #3d4652; font-size: 16px; line-height: 1.55; }
.hero-lead strong { color: var(--ink); }
.button-row { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 25px; }
.button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; min-height: 48px; padding: 0 26px; text-transform: uppercase; letter-spacing: .08em; font-size: 11px; font-weight: 800; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s, color .2s; border-radius: 4px; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(10,27,52,.16); }
.button:active { transform: translateY(0); box-shadow: none; }
.button-dark { background: var(--ink); color: white; }
.button-dark:hover { background-color: var(--white); border-color: var(--ink); color: var(--ink); }
.button-dark:active { background-color: var(--paper); border-color: var(--ink); color: var(--ink); }
.button-light { background: rgba(255,255,255,.56); border-color: var(--ink); backdrop-filter: blur(8px); }
.button-light:hover { background-color: var(--ink); border-color: var(--ink); color: white; }
.button-light:active { background-color: var(--ink-soft); border-color: var(--ink-soft); color: white; }
.button-outline { border: 2px solid var(--ink); background: rgba(255,255,255,.55); }
.button-outline:hover { color: white; background: var(--ink); }
.button-full { width: 100%; }
.benefits { margin-top: -26px; position: relative; z-index: 5; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); padding: 32px 18px; overflow: hidden; }
.benefits article { position: relative; min-width: 0; min-height: 150px; padding: 10px 20px; display: flex; flex-direction: column; align-items: center; justify-content: flex-start; text-align: center; }
.benefits article:not(:last-child)::after { content: ""; position: absolute; top: 8px; right: 0; bottom: 8px; width: 1px; background: var(--line); }
.line-icon { display: block; width: 38px; height: 38px; margin: 0 auto 16px; object-fit: contain; }
.benefits h3 { margin: 0 0 8px; font-size: 13px; line-height: 1.3; }
.benefits p { max-width: 190px; color: #5c6572; font-size: 11px; margin: 0; line-height: 1.5; }

.section-heading { text-align: center; margin: 0 auto 52px; max-width: 720px; }
.section-heading h2, .contact-copy h2 { font-size: clamp(38px, 4.5vw, 60px); line-height: 1.04; margin: 0 0 14px; }
.section-heading > p:last-child { color: #68717d; }
.model-grid { display: grid; grid-template-columns: repeat(2, minmax(280px, 380px)); justify-content: center; gap: 14px; align-items: stretch; }
.model-card { background: transparent; border: 1px solid transparent; padding: 24px 30px; border-radius: 7px; position: relative; display: flex; flex-direction: column; overflow: visible; }
.model-card-link { color: inherit; transition: border-color .2s; }
.model-card-link:hover { border-color: var(--line); }
.model-card-link:focus-visible { outline: none; border-color: var(--ink); }
.model-card.featured { transform: none; box-shadow: none; border-color: transparent; }
.product-visual { height: 235px; margin: 10px 0 14px; overflow: hidden; background: transparent; }
.product-visual img { width: 100%; height: 100%; object-fit: contain; transition: transform .35s ease; }
.model-card:hover .product-visual img { transform: scale(1.025); }
.model-card h3 { font-family: var(--body); font-size: 18px; font-weight: 700; margin: 0; text-align: center; }
.model-intro { min-height: 38px; color: #303a47; margin: 4px 0 0; font-size: 11px; text-align: center; }
.check-list { list-style: none; padding: 0; margin: 0 0 20px; font-size: 11px; line-height: 1.65; flex: 1; }
.check-list li { padding: 2px 0 2px 20px; position: relative; border: 0; }
.check-list li::before { content: "✓"; position: absolute; left: 0; }
.price { font-family: var(--body); font-size: 25px; font-weight: 800; margin: 0; }
.price-note { margin: 0 0 13px; color: #4d5662; font-size: 9px; }
.model-card .button { min-height: 39px; }

.feature-section { padding-top: 65px; background: #f5f4f1; }
.feature-section .section-heading h2,
.audience-section .section-heading h2 { font-size: 22px; text-transform: uppercase; letter-spacing: .08em; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.feature-card { padding: 20px; background: white; border: 1px solid var(--line); border-radius: 7px; }
.feature-card h3 { margin: 0 0 13px; font-family: var(--body); font-size: 16px; font-weight: 700; }
.feature-body { display: grid; grid-template-columns: 120px 1fr; gap: 15px; align-items: center; }
.feature-card ul { list-style: none; margin: 0; padding: 0; font-size: 11px; line-height: 1.65; }
.feature-card li { position: relative; padding-left: 20px; }
.feature-card li::before { content: "✓"; position: absolute; left: 0; font-weight: 800; }
.nozzle-art { width: 116px; height: 116px; border-radius: 50%; background: radial-gradient(circle at 70% 30%,rgba(126,206,231,.7),transparent 28%),linear-gradient(135deg,#d8e9ee,#fff 46%,#9faab1 48%,#f7f7f6 56%,#b7e7f1); }
.feature-photo img { width: 120px; height: 116px; object-fit: cover; border-radius: 0 50% 50% 0; }

.audience-section { padding-top: 75px; background: white; }
.audience-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.audience-grid article { text-align: center; }
.audience-photo { position: relative; }
.audience-photo img { width: 100%; height: 220px; object-fit: cover; border-radius: 7px 7px 0 0; }
.audience-photo span { position: absolute; left: 50%; bottom: -22px; transform: translateX(-50%); width: 45px; height: 45px; display: grid; place-items: center; color: white; background: var(--ink); border: 3px solid white; border-radius: 50%; font-size: 25px; }
.audience-section h3 { margin: 28px 0 5px; font-size: 14px; }
.audience-section p { margin: 0 auto; max-width: 230px; color: #414a56; font-size: 10px; line-height: 1.5; }

.review-faq-section { background: #e8e2d9; }
.review-faq-grid { display: grid; grid-template-columns: 1fr 1fr; background: rgba(255,255,255,.52); border: 1px solid rgba(10,27,52,.08); }
.review-panel, .faq-panel { padding: 42px 46px; min-width: 0; }
.review-panel { border-right: 1px solid var(--line); }
.panel-heading { margin-bottom: 23px; }
.panel-heading h2 { font-family: var(--display); font-size: clamp(29px, 3vw, 39px); font-weight: 400; line-height: 1.05; margin: 0; }
.compact-rating { display: flex; align-items: center; gap: 13px; margin-top: 15px; }
.compact-rating strong { font-family: var(--display); font-size: 35px; font-weight: 400; }
.compact-rating span, .stars { letter-spacing: .15em; font-size: 11px; }
.compact-rating small { display: block; color: #586270; letter-spacing: 0; margin-top: 1px; font-size: 9px; }
.review-carousel { border-top: 1px solid var(--line); }
.review-viewport { overflow: hidden; }
.quotes { position: relative; min-height: 470px; }
.review-card { position: absolute; top: 50%; left: 50%; width: 94%; min-width: 0; margin: 0; padding: 25px 22px; display: grid; grid-template-columns: 92px minmax(0, 1fr); grid-template-rows: 92px auto; column-gap: 22px; row-gap: 18px; align-items: stretch; background: #f6f2ec; border: 1px solid rgba(10,27,52,.1); box-shadow: 0 14px 30px rgba(10,27,52,.08); opacity: 0; visibility: hidden; pointer-events: none; transform: translate(-50%, -50%) scale(.72); transition: transform .55s ease, opacity .4s ease, visibility .55s; }
.review-card::after { content: ""; position: absolute; inset: 0; background: rgba(117,91,53,.16); opacity: 0; pointer-events: none; transition: opacity .45s ease; }
.review-card.is-current { z-index: 3; opacity: 1; visibility: visible; pointer-events: auto; transform: translate(-50%, -50%) scale(1); }
.review-card.is-previous,
.review-card.is-next { z-index: 1; width: 82%; opacity: .72; visibility: visible; transform: translate(-50%, -135%) scale(.82); }
.review-card.is-next { transform: translate(-50%, 35%) scale(.82); }
.review-card.is-previous::after,
.review-card.is-next::after { opacity: 1; }
.review-card img { grid-column: 1; grid-row: 1; width: 92px; height: 92px; border-radius: 50%; object-fit: cover; }
.review-content { display: contents; }
.review-card .stars { grid-column: 2; grid-row: 1; align-self: start; }
.review-card p { grid-column: 1 / -1; grid-row: 2; font-family: var(--display); font-size: 16px; line-height: 1.42; margin: 0; }
.review-card footer { grid-column: 2; grid-row: 1; align-self: end; font-size: 8px; color: #66707c; text-transform: uppercase; letter-spacing: .08em; }
.review-controls { display: flex; justify-content: center; align-items: center; gap: 13px; padding-top: 16px; }
.review-arrow { width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; background: transparent; color: var(--ink); font-size: 16px; cursor: pointer; transition: color .2s, background .2s; }
.review-arrow:hover, .review-arrow:focus-visible { color: white; background: var(--ink); }
.review-position { min-width: 48px; color: #66707c; font-size: 10px; text-align: center; letter-spacing: .08em; }
.review-position strong { color: var(--ink); font-weight: 600; }

.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button { width: 100%; border: 0; background: transparent; padding: 18px 4px; display: flex; align-items: center; justify-content: space-between; text-align: left; font-family: var(--display); font-size: 16px; cursor: pointer; }
.faq-item i { width: 20px; height: 20px; position: relative; flex: 0 0 20px; }
.faq-item i::before, .faq-item i::after { content: ""; position: absolute; top: 9px; left: 3px; width: 14px; height: 1px; background: var(--ink); transition: rotate .25s; }
.faq-item i::after { rotate: 90deg; }
.faq-item button[aria-expanded="true"] i::after { rotate: 0deg; }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .35s ease; }
.faq-answer > p { overflow: hidden; margin: 0; color: #5e6875; max-width: 760px; font-size: 11px; }
.faq-item button[aria-expanded="true"] + .faq-answer { grid-template-rows: 1fr; }
.faq-item button[aria-expanded="true"] + .faq-answer > p { padding-bottom: 24px; }

.contact-section { background: #efe9df; padding: 95px 0; }
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 90px; align-items: start; }
.contact-copy > p { color: #66707c; max-width: 480px; }
.contact-form { padding: 34px; background: white; box-shadow: var(--shadow); display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.contact-form label { display: grid; gap: 8px; font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.contact-form input, .contact-form textarea { width: 100%; padding: 14px 0; border: 0; border-bottom: 1px solid #bdc1c5; outline: 0; background: transparent; resize: vertical; text-transform: none; letter-spacing: 0; font-size: 14px; font-weight: 400; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--ink); }
.contact-form .full { grid-column: 1/-1; }
.form-status { min-height: 20px; margin: 0; font-size: 12px; color: #347055; }

.site-footer { background: #07172d; color: white; padding-top: 65px; }
.footer-main { display: grid; grid-template-columns: minmax(260px, 2fr) repeat(auto-fit, minmax(140px, 1fr)); gap: 60px; padding-bottom: 55px; }
.footer-brand { display: inline-block; font-size: 46px; line-height: 1; margin-bottom: 15px; }
.footer-main h3 { text-transform: uppercase; letter-spacing: .12em; font-size: 10px; }
.footer-main p, .footer-main a:not(.footer-brand) { display: block; color: #aab5c4; font-size: 12px; margin: 7px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.13); padding-block: 22px; display: flex; justify-content: space-between; color: #7e8b9e; font-size: 13px; }
.footer-bottom > span:last-child { display: flex; flex-wrap: wrap; justify-content: flex-end; margin-inline: -15px; row-gap: 10px; }
.footer-bottom a { padding: 0 15px; white-space: nowrap; }

.back-to-top { position: fixed; right: 24px; bottom: 24px; z-index: 45; width: 52px; height: 52px; display: grid; place-items: center; padding: 0; border: 1px solid var(--ink); border-radius: 50%; color: white; background: var(--ink); box-shadow: 0 10px 28px rgba(0,0,0,.24), 0 0 0 3px rgba(255,255,255,.72); font-size: 23px; line-height: 1; cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(12px); transition: opacity .25s, visibility .25s, transform .25s, background .2s, color .2s; }
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover, .back-to-top:focus-visible { color: white; background: var(--ink-soft); outline: none; }
.back-to-top:active { transform: translateY(2px); }

.reveal { opacity: 1; transform: translateY(22px); transition: transform .7s ease; }
.reveal.visible { transform: none; }

/* Product pages */
.inner-page { background: white; }
.model-s1 { --hero-image: url("../img/products/model-1/interior-07.png"); }
.model-s2 { --hero-image: url("../img/products/model-2/interior-07.png"); }
.back-button { min-height: 42px; padding-inline: 20px; }
.product-hero { align-items: stretch; }
.product-hero-copy { width: min(1180px, calc(100% - 48px)); margin-inline: auto; padding: 54px 0 70px; display: flex; flex-direction: column; align-items: flex-start; }
.product-hero-brand { display: inline-block; font-size: 46px; line-height: 1; }
.product-hero .back-button { margin-top: 24px; }
.product-hero-heading { margin-top: auto; max-width: 680px; }
.product-title { margin: 0; max-width: 560px; font-size: clamp(64px, 8vw, 112px); line-height: .9; }
.product-hero-heading p { max-width: 600px; margin: 24px 0 0; color: #465363; font-size: 16px; line-height: 1.55; }
.spec-strip { background: var(--ink); color: white; }
.spec-strip-inner { display: grid; grid-template-columns: repeat(4,1fr); padding: 56px 0; }
.spec-strip div { padding: 15px; border-right: 1px solid rgba(255,255,255,.15); }
.spec-strip div:last-child { border: 0; }
.spec-strip small { display: block; color: #8f9aab; text-transform: uppercase; letter-spacing: .1em; }
.spec-strip strong { font-family: var(--display); font-size: 20px; font-weight: 400; }
.product-story { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.product-gallery { min-width: 0; }
.gallery-viewport { position: relative; overflow: hidden; background: #e7e1d8; }
.gallery-track { display: flex; transition: transform .5s cubic-bezier(.22,.61,.36,1); }
.gallery-slide { flex: 0 0 100%; margin: 0; }
.gallery-slide img { width: 100%; height: 560px; object-fit: cover; }
.gallery-arrow { position: absolute; top: 50%; z-index: 2; width: 46px; height: 46px; padding: 0; border: 1px solid rgba(10,27,52,.15); border-radius: 50%; color: var(--ink); background: rgba(255,255,255,.9); box-shadow: 0 8px 25px rgba(10,27,52,.12); cursor: pointer; transform: translateY(-50%); transition: background .2s, color .2s, transform .2s; }
.gallery-arrow:hover { color: white; background: var(--ink); transform: translateY(-50%) scale(1.05); }
.gallery-prev { left: 18px; }
.gallery-next { right: 18px; }
.gallery-dots { display: flex; justify-content: center; gap: 9px; padding-top: 18px; }
.gallery-dot { width: 9px; height: 9px; padding: 0; border: 1px solid var(--ink); border-radius: 50%; background: transparent; cursor: pointer; }
.gallery-dot.active { background: var(--ink); }
.gallery-dot:focus-visible,
.gallery-arrow:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
.product-story-copy h2 { font-size: clamp(40px,5vw,65px); margin: 0 0 20px; }
.product-story-copy > p { color: #647080; }
.product-feature-list { margin-top: 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.product-feature-list article { border-top: 1px solid var(--line); padding-top: 14px; }
.product-feature-list h3 { font-family: var(--display); font-weight: 400; margin: 0 0 4px; }
.product-feature-list p { font-size: 11px; color: #68717d; margin: 0; }
.product-manual { padding-top: 0; }
.product-manual-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 36px; align-items: center; padding: 42px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-manual h2 { max-width: 620px; margin: 0 0 12px; font-size: clamp(32px,4vw,52px); }
.product-manual p { max-width: 760px; margin: 0; color: #647080; }
.product-manual .button { white-space: nowrap; }
.product-buy { background: #e7e1d8; text-align: center; padding: 90px 20px; }
.product-buy h2 { font-size: clamp(38px,5vw,62px); margin: 0 0 8px; }
.product-buy .price { font-size: 45px; margin: 20px 0; }
.product-buy .price-note { display: inline-block; margin: 0; vertical-align: middle; }

/* Legal pages */
.legal-body { background: #f5f4f1; }
.page-top { width: min(1180px, calc(100% - 48px)); margin-inline: auto; padding: 54px 0 20px; display: flex; flex-direction: column; align-items: flex-start; }
.page-brand { display: inline-block; font-size: 46px; line-height: 1; }
.page-top .back-button { margin-top: 24px; }
.legal-page { padding: 20px 0 90px; }
.legal-card { max-width: 920px; padding: clamp(32px, 5vw, 70px); background: white; border: 1px solid var(--line); box-shadow: var(--shadow); }
.legal-card h1 { margin: 0 0 42px; font-family: var(--display); font-size: clamp(44px, 7vw, 76px); font-weight: 400; letter-spacing: -.04em; }
.legal-card > p { color: #4f5966; }
.legal-block { padding: 24px 0; border-top: 1px solid var(--line); }
.legal-block:first-of-type { border-top: 0; padding-top: 0; }
.legal-label { display: block; margin-bottom: 8px; font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.legal-block p { margin: 6px 0; color: #4f5966; font-size: 14px; }
.legal-block a { text-decoration: underline; text-decoration-color: rgba(10,27,52,.3); text-underline-offset: 3px; }
.legal-footer { margin-top: 0; }

@media (max-width: 980px) {
  .benefits { grid-template-columns: repeat(6, minmax(0, 1fr)); padding: 22px 18px; }
  .benefits article { grid-column: span 2; min-height: 156px; padding: 18px 24px; }
  .benefits article:nth-child(4) { grid-column: 2 / span 2; }
  .benefits article:nth-child(5) { grid-column: 4 / span 2; }
  .benefits article::after { content: none !important; }
  .benefits article:nth-child(1)::after,
  .benefits article:nth-child(2)::after,
  .benefits article:nth-child(4)::after { content: "" !important; position: absolute; top: 18px; right: 0; bottom: 18px; width: 1px; background: var(--line); }
  .benefits article:nth-child(4)::before,
  .benefits article:nth-child(5)::before { content: ""; position: absolute; top: 0; height: 1px; background: var(--line); }
  .benefits article:nth-child(4)::before { left: -50%; right: 0; }
  .benefits article:nth-child(5)::before { left: 0; right: -50%; }
  .model-grid { gap: 10px; }
  .model-card { padding: 18px; }
  .product-visual { height: 210px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-body { grid-template-columns: 150px 1fr; }
  .feature-photo img { width: 150px; }
  .audience-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { gap: 45px; }
  .footer-main { grid-template-columns: minmax(240px, 2fr) repeat(auto-fit, minmax(140px, 1fr)); }
}

@media (max-width: 1024px) {
  .hero::before,
  .product-hero::before { background-position: right bottom; }
}

@media (max-width: 767px) {
  .section-shell { width: min(100% - 32px, 580px); }
  .section { padding-block: 75px; }
  .site-header { height: 68px; padding: 0 16px; }
  body.menu-open::after { content: ""; position: fixed; inset: 0; z-index: 50; background: rgba(7, 23, 45, .32); backdrop-filter: blur(3px); }
  body.menu-open .site-header { z-index: 54; }
  .brand { font-size: 21px; }
  .desktop-nav, .header-cta { display: none; }
  .menu-toggle { margin-left: auto; display: block; width: 42px; height: 42px; padding: 0; border: 0; background: transparent; position: relative; z-index: 56; cursor: pointer; }
  .menu-toggle span:not(.sr-only) { position: absolute; left: 10px; top: 50%; width: 22px; height: 1px; background: var(--ink); transform: translateY(-50%); transform-origin: center; transition: transform .25s, opacity .25s; }
  .menu-toggle span:nth-child(1) { transform: translateY(-7px); }
  .menu-toggle span:nth-child(3) { transform: translateY(6px); }
  .menu-toggle[aria-expanded="true"] { position: fixed; top: 13px; right: 16px; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(-50%) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-50%) rotate(-45deg); }
  .mobile-nav { display: flex; position: fixed; top: 0; right: 0; bottom: auto; width: min(86vw, 370px); height: 100vh; height: 100dvh; background: var(--paper); z-index: 55; flex-direction: column; align-items: stretch; gap: 0; padding: 96px 24px max(28px, env(safe-area-inset-bottom)); font-family: var(--display); box-shadow: -24px 0 60px rgba(10,27,52,.18); overflow-y: auto; transform: translateX(100%); visibility: hidden; transition: transform .32s ease, visibility .32s; }
  .mobile-nav.open { transform: translateX(0); visibility: visible; }
  .mobile-nav > a { padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 28px; line-height: 1; font-weight: 400; }
  .mobile-nav > a:first-child { border-top: 1px solid var(--line); }
  .mobile-actions { margin-top: auto; display: grid; gap: 12px; padding-top: 28px; }
  .mobile-actions .button { width: 100%; min-height: 50px; font-family: var(--body); }
  .hero,
  .product-hero { min-height: 700px; align-items: stretch; }
  .hero::before,
  .product-hero::before { inset: 0 0 auto; height: 540px; background-position: 65% top; background-size: auto 540px; }
  .hero::before,
  .product-hero::before { background-position: right bottom; }
  .hero::after,
  .product-hero::after { inset: 0 0 auto; height: 540px; }
  .hero::after { background: linear-gradient(0deg,#fff 0%,rgba(255,255,255,.98) 14%,rgba(255,255,255,.5) 21%,rgba(255,255,255,.06) 39%,rgba(255,255,255,0) 65%); }
  .product-hero::after { background: linear-gradient(0deg,#fff 0%,rgba(255,255,255,.92) 8%,rgba(255,255,255,.25) 19%,rgba(255,255,255,.03) 30%,rgba(255,255,255,0) 52%); }
  .hero-copy { width: calc(100% - 32px); padding: 28px 0 55px; }
  .hero-brand,
  .footer-brand { font-size: 30px; }
  .hero h1 { margin-top: 490px; }
  .hero h1 { font-size: clamp(34px, 8.1vw, 48px); }
  .hero-lead { font-size: 15px; }
  .button-row .button { flex: 1; min-width: 155px; padding-inline: 12px; }
  .benefits { width: calc(100% - 32px); margin-top: 0; }
  .section-heading { margin-bottom: 35px; }
  .section-heading h2, .contact-copy h2 { font-size: 42px; }
  .model-grid { grid-template-columns: 1fr; gap: 18px; }
  .model-card.featured { order: initial; }
  .product-visual { height: 280px; }
  .audience-photo img { height: 200px; }
  .review-faq-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .review-faq-grid { gap: 0; }
  .review-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .review-panel, .faq-panel { padding: 16px; }
  .quotes { min-height: 430px; }
  .review-card { width: 94%; grid-template-columns: 74px minmax(0, 1fr); grid-template-rows: 74px auto; column-gap: 16px; row-gap: 16px; padding: 21px 18px; }
  .review-card.is-previous { width: 84%; transform: translate(-50%, -138%) scale(.8); }
  .review-card.is-next { width: 84%; transform: translate(-50%, 38%) scale(.8); }
  .review-card img { width: 74px; height: 74px; }
  .review-card p { font-size: 14px; }
  .contact-form { padding: 24px 20px; grid-template-columns: 1fr; }
  .contact-form .full { grid-column: auto; }
  .footer-main { grid-template-columns: 1fr; gap: 30px; }
  .footer-main > div:first-child { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 12px; }
  .footer-bottom > span:last-child { width: 100%; min-width: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-inline: 0; }
  .footer-bottom a { white-space: normal; }
  .product-hero-copy { width: calc(100% - 32px); padding: 28px 0 55px; }
  .product-hero-brand { font-size: 30px; }
  .page-top { width: calc(100% - 32px); padding: 28px 0 24px; }
  .page-brand { font-size: 30px; }
  .product-hero-heading { margin-top: 400px; }
  .spec-strip-inner { grid-template-columns: 1fr 1fr; gap: 24px 0; }
  .spec-strip div:nth-child(2),
  .spec-strip div:nth-child(4) { border: 0; }
  .product-story { grid-template-columns: 1fr; gap: 35px; }
  .product-manual-inner { grid-template-columns: 1fr; gap: 26px; padding: 34px 0; }
  .product-manual .button { width: min(100%, 340px); }
  .gallery-slide img { height: 440px; }
  .legal-page { padding-top: 0; }
  .legal-card { padding: 30px 22px; }
}

@media (max-width: 430px) {
  .section-shell { width: calc(100% - 28px); }
  .hero { min-height: 700px; }
  .hero-copy { padding-top: 28px; }
  .hero h1 { margin-top: 470px; }
  .hero h1 { font-size: 34px; }
  .button-row { display: grid; }
  .benefits { width: calc(100% - 28px); }
  .audience-grid { grid-template-columns: 1fr; }
  .audience-photo img { height: 230px; }
  .contact-form { margin-inline: -5px; }
  .product-feature-list { grid-template-columns: 1fr; }
  .gallery-slide img { height: 390px; }
  .gallery-arrow { width: 42px; height: 42px; }
  .gallery-prev { left: 12px; }
  .gallery-next { right: 12px; }
  .product-title { font-size: clamp(52px, 16vw, 76px); }
  .product-hero-heading p { margin-top: 18px; font-size: 14px; }
  .product-buy .button { width: min(100%, 340px); }
}

@media (max-width: 768px) {
  .hero-copy { width: 100%; margin-inline: 0; padding-inline: 16px; }
}

@media (max-width: 600px) {
  .back-to-top { right: 16px; bottom: 16px; width: 48px; height: 48px; }
  .hero .button-row { display: grid; grid-template-columns: 1fr; }
  .hero .button { width: 100%; min-width: 0; }
  .product-title { font-size: clamp(48px, 13vw, 66px); }
  .product-buy .button { width: min(100%, 340px); }
  .review-card { grid-template-columns: 64px minmax(0, 1fr); grid-template-rows: 64px auto; column-gap: 14px; }
  .review-card img { grid-column: 1; grid-row: 1; width: 64px; height: 64px; }
  .feature-section .section-heading h2,
  .audience-section .section-heading h2 { font-size: 19px; overflow-wrap: anywhere; }
  .feature-body { grid-template-columns: 105px minmax(0, 1fr); gap: 12px; }
  .feature-photo img { width: 105px; height: 105px; }
  .nozzle-art { width: 105px; height: 105px; }
  .benefits { display: block; padding: 12px 20px; }
  .benefits article { min-height: 0; padding: 24px 12px; }
  .benefits article:nth-child(n) { grid-column: auto; }
  .benefits article:nth-child(n)::after { content: none !important; }
  .benefits article:nth-child(n)::before { content: ""; position: absolute; top: 0; left: 12px; right: 12px; height: 1px; background: var(--line); }
  .benefits article:first-child::before { content: none; }
  .benefits .line-icon { width: 36px; height: 36px; margin-bottom: 14px; }
  .benefits p { max-width: 320px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}