:root {
  --ink: #0c0c0e;
  --ink-soft: #161619;
  --graphite: #232326;
  --gold: #d1a843;
  --gold-light: #efcf77;
  --gold-deep: #9a7121;
  --paper: #f5f2eb;
  --paper-deep: #e9e3d8;
  --white: #fff;
  --muted: #77746f;
  --line: rgba(12, 12, 14, .12);
  --radius: 4px;
  --shadow: 0 28px 70px rgba(18, 15, 8, .12);
  --wrap: min(1240px, calc(100vw - 64px));
  --font: "Ubuntu", "Segoe UI", Arial, sans-serif;
  --display: "Ubuntu", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--font); font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.wrap { width: var(--wrap); margin-inline: auto; }
.narrow { max-width: 850px; }
.sr-only, .skip-link { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link:focus { position: fixed; z-index: 99999; top: 16px; left: 16px; width: auto; height: auto; padding: 10px 16px; margin: 0; clip: auto; background: var(--gold); color: var(--ink); }
.content-main { padding: 180px 0 100px; min-height: 70vh; }
.reveal--ready { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal--ready.is-visible { opacity: 1; transform: none; }
.prose h1 { font: 800 clamp(2.5rem, 6vw, 5rem)/1 var(--display); letter-spacing: -.04em; text-transform: uppercase; }
.prose a { color: var(--gold-deep); text-decoration: underline; }

.site-header { position: absolute; z-index: 100; inset: 0 0 auto; color: var(--white); border-bottom: 1px solid rgba(255,255,255,.12); }
.topline { border-bottom: 1px solid rgba(255,255,255,.09); color: rgba(255,255,255,.66); font-size: .72rem; letter-spacing: .04em; }
.topline__inner { min-height: 34px; display: flex; align-items: center; justify-content: space-between; }
.topline__contacts { display: flex; gap: 24px; }
.topline__contacts a { display: inline-flex; align-items: center; gap: 7px; transition: color .2s; }
.topline__contacts a:hover { color: var(--gold-light); }
.topline svg { width: 14px; height: 14px; }
.nav-shell { min-height: 82px; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; align-items: flex-end; gap: 10px; flex: 0 0 auto; }
.brand img, .brand .custom-logo { display: block; width: 168px; height: auto; }
.brand .custom-logo-link { display: flex; }
.site-nav { margin-left: auto; }
.menu { display: flex; align-items: center; gap: 32px; margin: 0; padding: 0; list-style: none; }
.menu a { position: relative; display: block; padding: 10px 0; color: rgba(255,255,255,.83); font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.menu a::after { content: ""; position: absolute; right: 0; bottom: 4px; left: 0; height: 1px; background: var(--gold); transform: scaleX(0); transform-origin: right; transition: transform .25s; }
.menu a:hover::after, .menu .current-menu-item a::after { transform: scaleX(1); transform-origin: left; }
.header-cta { display: inline-flex; align-items: center; gap: 12px; padding: 13px 18px; border: 1px solid rgba(255,255,255,.26); color: var(--white); font-size: .72rem; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; transition: background .2s, border-color .2s, color .2s; }
.header-cta:hover { background: var(--gold); border-color: var(--gold); color: var(--ink); }
.header-cta svg { width: 18px; }
.nav-toggle { display: none; margin-left: auto; width: 44px; height: 44px; padding: 10px; border: 0; background: transparent; }
.nav-toggle i { display: block; height: 1px; margin: 6px 0; background: currentColor; transition: transform .25s, opacity .25s; }

.eyebrow { margin: 0 0 18px; color: var(--gold-light); font-size: .72rem; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow--dark { color: var(--gold-deep); }
.eyebrow > span { display: inline-block; width: 28px; height: 1px; margin: 0 12px 3px 0; background: currentColor; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 18px; min-height: 54px; padding: 0 24px; border: 0; border-radius: 0; font-size: .76rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; cursor: pointer; transition: transform .2s, background .2s, color .2s, box-shadow .2s; }
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 20px; transition: transform .2s; }
.btn:hover svg { transform: translateX(4px); }
.btn--gold { color: var(--ink); background: linear-gradient(120deg, var(--gold), var(--gold-light)); box-shadow: 0 12px 35px rgba(209,168,67,.19); }
.btn--gold:hover { box-shadow: 0 15px 40px rgba(209,168,67,.3); }
.btn--dark { color: var(--white); background: var(--ink); }
.text-link { display: inline-flex; align-items: center; gap: 10px; color: rgba(255,255,255,.78); font-size: .76rem; font-weight: 750; letter-spacing: .06em; text-transform: uppercase; }
.text-link svg { width: 20px; }
.text-link--dark { color: var(--ink); }

.hero { position: relative; min-height: 900px; overflow: hidden; color: var(--white); background: radial-gradient(circle at 72% 46%, #302718 0, #171616 26%, #0b0b0d 59%, #070708 100%); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right, #000, transparent 65%); }
.hero__glow { position: absolute; width: 640px; height: 640px; top: 120px; right: 4vw; border-radius: 50%; border: 1px solid rgba(209,168,67,.11); box-shadow: inset 0 0 90px rgba(209,168,67,.06), 0 0 100px rgba(209,168,67,.04); }
.hero__grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.18fr .82fr; gap: 28px; align-items: center; min-height: 900px; padding-top: 90px; }
.hero__copy { padding: 60px 0; }
.hero h1 { max-width: 820px; margin: 0; font: 700 clamp(3.65rem, 5vw, 4.8rem)/1.04 var(--display); letter-spacing: -.024em; text-transform: uppercase; }
.hero h1 em, .section-heading h2 em, .why h2 em, .selector h2 em, .inquiry h2 em, .product-details h2 em, .product-inquiry h2 em, .related h2 em, .page-hero h1 em { color: var(--gold); font-style: normal; }
.hero__lead { max-width: 610px; margin: 32px 0 34px; color: rgba(255,255,255,.68); font-size: 1.04rem; line-height: 1.8; }
.hero__actions { display: flex; align-items: center; gap: 30px; }
.hero__trust { display: flex; gap: 0; margin-top: 65px; }
.hero__trust > div { display: flex; align-items: center; gap: 12px; min-width: 145px; padding-right: 24px; margin-right: 24px; border-right: 1px solid rgba(255,255,255,.15); }
.hero__trust > div:last-child { border-right: 0; }
.hero__trust strong { color: var(--gold-light); font: 700 1.45rem/1 var(--display); }
.hero__trust span { color: rgba(255,255,255,.47); font-size: .65rem; line-height: 1.35; letter-spacing: .06em; text-transform: uppercase; }
.hero__visual { position: relative; display: flex; align-items: center; justify-content: center; min-height: 650px; }
.hero__visual::after { content: ""; position: absolute; z-index: -1; bottom: 60px; width: 420px; height: 70px; border-radius: 50%; background: rgba(0,0,0,.7); filter: blur(23px); }
.hero__visual > img { position: relative; z-index: 3; width: min(405px, 86%); max-height: 590px; object-fit: contain; filter: drop-shadow(0 40px 55px rgba(0,0,0,.58)); transform: rotate(2deg); }
.hero__ring { position: absolute; z-index: 1; border: 1px solid rgba(209,168,67,.24); border-radius: 50%; }
.hero__ring--one { width: 510px; height: 510px; }
.hero__ring--two { width: 390px; height: 390px; border-style: dashed; opacity: .6; animation: spin 38s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.hero__product-label { position: absolute; z-index: 5; bottom: 75px; right: -8px; width: 220px; padding: 16px 18px; border-left: 2px solid var(--gold); background: rgba(13,13,14,.76); backdrop-filter: blur(10px); }
.hero__product-label span, .hero__product-label small { display: block; color: rgba(255,255,255,.5); font-size: .58rem; letter-spacing: .08em; text-transform: uppercase; }
.hero__product-label strong { display: block; margin: 3px 0; font-size: .85rem; }
.hero__scroll { position: absolute; z-index: 4; bottom: 36px; left: 28px; display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,.32); font-size: .58rem; letter-spacing: .15em; text-transform: uppercase; transform: rotate(-90deg); transform-origin: left center; }
.hero__scroll span { width: 38px; height: 1px; background: var(--gold); }

.section { padding: 120px 0; }
.section--light { background: var(--paper); }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; align-items: end; gap: 80px; margin-bottom: 58px; }
.section-heading h2, .why h2, .selector h2, .inquiry h2, .product-details h2, .product-inquiry h2, .related h2 { margin: 0; font: 900 clamp(2.7rem, 5vw, 4.9rem)/.98 var(--display); letter-spacing: -.045em; text-transform: uppercase; }
.section-heading > p, .selector__head > p { max-width: 500px; margin: 0 0 8px; color: var(--muted); font-size: .95rem; }
.section-heading--compact { grid-template-columns: 1fr auto; align-items: end; }
.section-heading--compact h2 { font-size: clamp(2.5rem, 4vw, 4rem); }
.category-intro { padding-bottom: 105px; }
.category-cards { display: grid; grid-template-columns: repeat(3, 1fr); box-shadow: var(--shadow); }
.category-card { position: relative; min-height: 360px; padding: 34px; overflow: hidden; border-right: 1px solid rgba(255,255,255,.12); color: var(--white); background: var(--graphite); transition: transform .3s, filter .3s; }
.category-card:hover { z-index: 2; transform: translateY(-8px); filter: brightness(1.08); }
.category-card--gold { color: var(--ink); background: linear-gradient(145deg, var(--gold-light), #bd8f30); }
.category-card--dark { background: #111113; }
.category-card__number { display: inline-flex; align-items: center; min-width: 52px; padding-bottom: 10px; border-bottom: 2px solid currentColor; color: currentColor; opacity: .72; font: 700 1.2rem/1 var(--display); letter-spacing: .12em; }
.category-card__icon { position: absolute; top: 25px; right: 28px; color: var(--gold-light); font-size: 3.2rem; opacity: .7; }
.category-card--gold .category-card__icon { color: var(--ink); }
.category-card h3 { margin: 100px 0 10px; font: 900 2.3rem/1 var(--display); text-transform: uppercase; }
.category-card p { max-width: 280px; min-height: 72px; margin: 0 0 28px; color: currentColor; font-size: .84rem; opacity: .66; }
.category-card strong { display: flex; align-items: center; justify-content: space-between; padding-top: 22px; border-top: 1px solid currentColor; font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }
.category-card strong svg { width: 19px; }

.featured-products { padding: 115px 0 130px; background: #fff; }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-grid--home { grid-template-columns: repeat(3, 1fr); }
.product-card { min-width: 0; }
.product-card[hidden] { display: none; }
.product-card__media { position: relative; display: flex; align-items: center; justify-content: center; min-height: 390px; overflow: hidden; background: #f2f0eb; }
.product-card__media::before { content: ""; position: absolute; width: 220px; height: 220px; border: 1px solid rgba(154,113,33,.12); border-radius: 50%; transition: transform .4s; }
.product-card:hover .product-card__media::before { transform: scale(1.18); }
.product-card__media img { position: relative; z-index: 1; width: 210px; height: 300px; object-fit: contain; filter: drop-shadow(0 22px 22px rgba(64,45,10,.16)); transition: transform .35s; }
.product-card:hover .product-card__media img { transform: translateY(-7px) rotate(1deg); }
.product-card__series { position: absolute; z-index: 2; top: 18px; left: 18px; padding: 5px 9px; color: var(--gold-deep); border: 1px solid rgba(154,113,33,.28); font-size: .56rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.product-card__arrow { position: absolute; z-index: 2; right: 17px; bottom: 17px; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 50%; color: var(--white); background: var(--ink); transform: translateY(60px); transition: transform .3s; }
.product-card:hover .product-card__arrow { transform: translateY(0); }
.product-card__arrow svg { width: 18px; }
.product-card__body { padding: 20px 2px 8px; }
.product-card__specs { display: flex; gap: 8px; margin-bottom: 10px; color: var(--gold-deep); font-size: .61rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.product-card__specs span + span::before { content: "•"; margin-right: 8px; color: #c9c3b8; }
.product-card h3 { margin: 0 0 6px; font: 850 1rem/1.35 var(--display); letter-spacing: -.01em; text-transform: uppercase; }
.product-card h3 a:hover { color: var(--gold-deep); }
.product-card__body > p { margin: 0; color: var(--muted); font-size: .75rem; }

.why { position: relative; overflow: hidden; color: var(--white); background: var(--ink); }
.why::after { content: ""; position: absolute; inset: auto 0 0; height: 1px; background: linear-gradient(90deg, transparent, var(--gold), transparent); opacity: .4; }
.why__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: center; }
.why__visual { position: relative; min-height: 590px; }
.why__outline { position: absolute; top: 45%; left: -60px; color: transparent; font: 900 8rem/1 var(--display); letter-spacing: -.05em; text-transform: uppercase; transform: rotate(-90deg); -webkit-text-stroke: 1px rgba(255,255,255,.1); }
.oil-drop { position: absolute; top: 30px; right: 20px; bottom: 20px; left: 80px; border-radius: 72% 28% 61% 39% / 48% 56% 44% 52%; background: radial-gradient(circle at 30% 24%, #f4dc99 0, #d0a33e 13%, #815616 42%, #1d1308 75%); box-shadow: inset -35px -45px 65px rgba(0,0,0,.7), 0 50px 80px rgba(0,0,0,.45); transform: rotate(18deg); }
.oil-drop::after { content: ""; position: absolute; top: 10%; left: 18%; width: 40%; height: 20%; border-radius: 50%; background: rgba(255,255,255,.17); filter: blur(14px); }
.why__badge { position: absolute; z-index: 2; right: -10px; bottom: 50px; display: flex; align-items: center; gap: 14px; padding: 20px 24px; color: var(--ink); background: var(--gold-light); box-shadow: 0 18px 50px rgba(0,0,0,.28); }
.why__badge strong { font: 900 1.8rem/1 var(--display); }
.why__badge span { font-size: .62rem; line-height: 1.3; letter-spacing: .05em; text-transform: uppercase; }
.why__lead { max-width: 610px; margin: 30px 0 42px; color: rgba(255,255,255,.59); }
.why__points { border-top: 1px solid rgba(255,255,255,.12); }
.why__points article { display: grid; grid-template-columns: 50px 1fr; gap: 15px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.why__points article > span { color: var(--gold); font: 700 .75rem var(--display); }
.why__points h3 { margin: 0 0 5px; font-size: .94rem; text-transform: uppercase; }
.why__points p { margin: 0; color: rgba(255,255,255,.45); font-size: .8rem; }

.selector { padding-bottom: 100px; background: var(--paper); }
.selector__head { display: grid; grid-template-columns: 1.2fr .8fr; gap: 80px; align-items: end; margin-bottom: 65px; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps article { position: relative; min-height: 310px; padding: 40px 40px 35px 0; border-right: 1px solid var(--line); }
.steps article + article { padding-left: 40px; }
.steps article:last-child { border-right: 0; }
.steps article > span { position: absolute; top: 24px; right: 28px; color: #c8c1b6; font-size: .7rem; }
.steps__icon { display: grid; place-items: center; width: 68px; height: 68px; margin-bottom: 50px; color: var(--gold-deep); border: 1px solid rgba(154,113,33,.36); border-radius: 50%; font: 800 .85rem var(--display); }
.steps h3 { margin: 0 0 13px; font: 850 1.12rem var(--display); text-transform: uppercase; }
.steps p { margin: 0; color: var(--muted); font-size: .82rem; }
.selector__cta { display: flex; align-items: center; gap: 22px; padding: 30px 34px; color: var(--white); background: linear-gradient(105deg, #1a1a1c, #09090a); }
.selector__cta > span { color: var(--gold-light); font-size: .68rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.selector__cta > strong { font: 750 1rem var(--display); }
.selector__cta .btn { margin-left: auto; border: 1px solid rgba(255,255,255,.2); }

.inquiry { color: var(--white); background: linear-gradient(120deg, #151516, #080809); }
.inquiry__grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; align-items: center; }
.inquiry__copy > p:not(.eyebrow) { max-width: 470px; color: rgba(255,255,255,.53); }
.inquiry__contacts { display: flex; gap: 18px; margin-top: 45px; }
.inquiry__contacts a { display: flex; align-items: center; gap: 12px; min-width: 190px; padding: 17px 18px; border: 1px solid rgba(255,255,255,.14); }
.inquiry__contacts svg { width: 22px; color: var(--gold); }
.inquiry__contacts small { display: block; color: rgba(255,255,255,.4); font-size: .57rem; letter-spacing: .1em; text-transform: uppercase; }
.inquiry__contacts span { font-size: .78rem; font-weight: 700; }
.inquiry__form { padding: 46px; background: #202023; box-shadow: 0 30px 80px rgba(0,0,0,.26); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
form label { display: block; margin-bottom: 19px; color: rgba(255,255,255,.55); font-size: .65rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
form input, form textarea, form select { display: block; width: 100%; margin-top: 7px; padding: 13px 0; border: 0; border-bottom: 1px solid rgba(255,255,255,.23); border-radius: 0; outline: 0; color: var(--white); background: transparent; font-size: .9rem; letter-spacing: 0; text-transform: none; transition: border-color .2s; }
form input:focus, form textarea:focus, form select:focus { border-color: var(--gold); }
form textarea { resize: vertical; }
form select option { color: var(--ink); }
.form-submit { display: flex; align-items: center; gap: 24px; margin-top: 28px; }
.form-submit small { max-width: 300px; color: rgba(255,255,255,.32); font-size: .58rem; line-height: 1.5; }
.form-submit .btn { margin-left: auto; }
.honey { position: absolute !important; left: -9999px !important; }
.form-notice { margin-bottom: 24px; padding: 14px 16px; font-size: .78rem; }
.form-notice--success { color: #c8f5d3; border: 1px solid #3f7e4f; background: rgba(63,126,79,.18); }
.form-notice--error { color: #ffd0cc; border: 1px solid #8f433c; background: rgba(143,67,60,.18); }

.site-footer { position: relative; overflow: hidden; padding-top: 95px; color: var(--white); background: #070708; }
.footer-oil { position: absolute; top: -100px; right: -130px; width: 460px; height: 300px; border-radius: 50%; background: radial-gradient(ellipse, rgba(209,168,67,.22), transparent 67%); transform: rotate(-25deg); }
.footer-grid { position: relative; display: grid; grid-template-columns: 1.15fr .7fr .9fr 1.25fr; gap: 60px; padding-bottom: 75px; }
.brand--footer img { width: 155px; }
.footer-brand p { max-width: 270px; margin: 25px 0 0; color: rgba(255,255,255,.42); font-size: .78rem; }
.footer-title { margin: 0 0 23px; color: rgba(255,255,255,.45); font-size: .66rem; letter-spacing: .13em; text-transform: uppercase; }
.footer-links, .footer-contacts { margin: 0; padding: 0; list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(255,255,255,.7); font-size: .75rem; }
.footer-links a:hover { color: var(--gold-light); }
.footer-contacts li { display: flex; gap: 12px; margin-bottom: 21px; }
.footer-contacts svg { width: 20px; color: var(--gold); }
.footer-contacts small { display: block; color: rgba(255,255,255,.34); font-size: .55rem; letter-spacing: .1em; text-transform: uppercase; }
.footer-contacts a { font-size: .76rem; }
.footer-action { padding-left: 35px; border-left: 1px solid rgba(255,255,255,.12); }
.footer-action .eyebrow { margin-bottom: 10px; }
.footer-action h2 { margin: 0 0 24px; font: 800 1.7rem/1.15 var(--display); text-transform: uppercase; }
.footer-bottom { display: flex; justify-content: space-between; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.28); font-size: .61rem; letter-spacing: .04em; text-transform: uppercase; }
.footer-bottom p { margin: 0; }

.page-hero { position: relative; min-height: 530px; padding-top: 175px; overflow: hidden; color: var(--white); background: radial-gradient(circle at 78% 42%, #2c2418, #121214 36%, #080809 75%); }
.page-hero__pattern { position: absolute; right: -20px; bottom: -45px; color: transparent; font: 900 14rem/1 var(--display); letter-spacing: -.07em; -webkit-text-stroke: 1px rgba(255,255,255,.055); }
.page-hero__inner { position: relative; }
.page-hero h1 { max-width: 820px; margin: 0; font: 900 clamp(3.7rem, 7vw, 7rem)/.88 var(--display); letter-spacing: -.05em; text-transform: uppercase; }
.page-hero__inner > p:last-child { max-width: 520px; color: rgba(255,255,255,.55); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 9px; margin: 0 0 40px; color: rgba(255,255,255,.4); font-size: .64rem; letter-spacing: .06em; text-transform: uppercase; }
.breadcrumbs a:hover { color: var(--gold-light); }
.catalog-content { padding: 70px 0 120px; }
.catalog-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding-bottom: 28px; border-bottom: 1px solid var(--line); }
.filter-group { display: flex; align-items: center; gap: 8px; }
.filter-group > span, .viscosity-row > span { margin-right: 8px; color: var(--muted); font-size: .63rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.filter-group button, .viscosity-row button { padding: 9px 15px; border: 1px solid var(--line); color: #67635d; background: transparent; font-size: .66rem; font-weight: 750; letter-spacing: .05em; text-transform: uppercase; cursor: pointer; }
.filter-group button:hover, .filter-group button.is-active, .viscosity-row button:hover, .viscosity-row button.is-active { color: var(--white); border-color: var(--ink); background: var(--ink); }
.catalog-search { position: relative; display: flex; align-items: center; width: min(370px, 36vw); min-height: 54px; margin: 0; padding: 0 18px; color: var(--ink); border: 1px solid rgba(12,12,14,.16); background: rgba(255,255,255,.72); box-shadow: 0 6px 22px rgba(18,15,8,.035); transition: border-color .2s, box-shadow .2s, background .2s; }
.catalog-search:focus-within { border-color: var(--gold-deep); background: var(--white); box-shadow: 0 0 0 3px rgba(209,168,67,.13), 0 10px 28px rgba(18,15,8,.06); }
.catalog-search svg { position: static; flex: 0 0 auto; width: 20px; margin-right: 13px; fill: none; stroke: var(--gold-deep); stroke-width: 1.7; }
.catalog-search input[type="search"] { flex: 1 1 auto; width: 100%; min-width: 0; height: 52px; margin: 0; padding: 0; border: 0; border-radius: 0; outline: 0; appearance: none; -webkit-appearance: none; color: var(--ink); background: transparent; box-shadow: none; font-size: .82rem; line-height: 52px; }
.catalog-search input[type="search"]::placeholder { color: #96918a; opacity: 1; }
.catalog-search input[type="search"]::-webkit-search-cancel-button { width: 15px; height: 15px; cursor: pointer; opacity: .45; }
.viscosity-row { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; padding: 24px 0 18px; }
.viscosity-row button { padding: 7px 11px; }
.catalog-count { margin: 12px 0 24px; color: var(--muted); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; }
.catalog-count strong { color: var(--ink); }
.catalog-empty { padding: 80px 30px; text-align: center; }
.catalog-empty h2 { margin: 0; font: 850 2rem var(--display); text-transform: uppercase; }
.catalog-empty p { color: var(--muted); }
.catalog-help { padding: 60px 0; color: var(--white); background: var(--ink); }
.catalog-help__inner { display: grid; grid-template-columns: 1.2fr .8fr auto; align-items: center; gap: 60px; }
.catalog-help h2 { max-width: 550px; margin: 0; font: 850 2.3rem/1.05 var(--display); text-transform: uppercase; }
.catalog-help p { color: rgba(255,255,255,.49); font-size: .82rem; }

.product-hero { min-height: 810px; padding: 175px 0 90px; color: var(--white); background: radial-gradient(circle at 25% 55%, #2a2318, #111113 37%, #080809 76%); }
.product-hero__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: center; }
.product-gallery { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 560px; }
.product-gallery__halo { position: absolute; width: 430px; height: 430px; border: 1px solid rgba(209,168,67,.2); border-radius: 50%; box-shadow: inset 0 0 90px rgba(209,168,67,.08); }
.product-gallery img { position: relative; z-index: 2; width: 320px; max-height: 470px; object-fit: contain; filter: drop-shadow(0 35px 40px rgba(0,0,0,.5)); }
.product-gallery__series { position: absolute; z-index: 3; top: 20px; left: 0; padding: 7px 11px; border: 1px solid rgba(239,207,119,.35); color: var(--gold-light); font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; }
.product-gallery small { position: absolute; z-index: 3; bottom: 0; color: rgba(255,255,255,.3); font-size: .58rem; }
.product-summary .eyebrow { margin-bottom: 14px; }
.product-summary h1 { margin: 0; font: 900 clamp(3rem, 5vw, 5.5rem)/.93 var(--display); letter-spacing: -.045em; text-transform: uppercase; }
.product-pills { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0; }
.product-pills span { padding: 7px 10px; border: 1px solid rgba(255,255,255,.16); color: var(--gold-light); font-size: .61rem; letter-spacing: .06em; text-transform: uppercase; }
.product-summary__description { max-width: 680px; color: rgba(255,255,255,.59); font-size: .92rem; }
.product-key-specs { display: grid; grid-template-columns: repeat(3, 1fr); margin: 35px 0; border-top: 1px solid rgba(255,255,255,.14); border-bottom: 1px solid rgba(255,255,255,.14); }
.product-key-specs div { padding: 19px 16px 19px 0; border-right: 1px solid rgba(255,255,255,.14); }
.product-key-specs div + div { padding-left: 16px; }
.product-key-specs div:last-child { border-right: 0; }
.product-key-specs small { display: block; color: rgba(255,255,255,.35); font-size: .56rem; letter-spacing: .08em; text-transform: uppercase; }
.product-key-specs strong { font: 800 .88rem var(--display); text-transform: uppercase; }
.product-summary > .text-link { margin-left: 25px; }
.product-summary > .text-link svg { width: 17px; }
.product-details { padding: 110px 0; }
.product-details__grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 120px; }
.product-details__main > h3 { margin: 44px 0 8px; font: 850 1rem var(--display); text-transform: uppercase; }
.product-details__main > p { max-width: 640px; color: var(--muted); }
.spec-panel { padding: 36px; color: var(--white); background: var(--ink); box-shadow: var(--shadow); }
.spec-panel h2 { margin: 0 0 25px; font-size: 1.3rem; }
.spec-panel dl { margin: 0; }
.spec-panel dl > div { display: flex; justify-content: space-between; gap: 20px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.spec-panel dt { color: rgba(255,255,255,.42); font-size: .68rem; }
.spec-panel dd { margin: 0; font-size: .72rem; font-weight: 750; text-align: right; }
.document-links { margin-top: 24px; }
.document-links a { display: grid; grid-template-columns: 1fr auto 20px; gap: 10px; align-items: center; padding: 13px 0; color: var(--gold-light); font-size: .7rem; font-weight: 750; text-transform: uppercase; }
.document-links small { color: rgba(255,255,255,.3); font-size: .55rem; }
.document-links svg { width: 18px; }
.product-inquiry { padding: 95px 0; color: var(--white); background: #121214; }
.product-inquiry__inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 100px; align-items: center; }
.product-inquiry__inner > div > p:last-child { color: rgba(255,255,255,.48); }
.product-inquiry form { padding: 35px; background: #202023; }
.related { padding: 110px 0; }
.product-grid--related { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 1100px) {
  :root { --wrap: min(100% - 44px, 980px); }
  .site-nav { position: fixed; z-index: 20; inset: 0; display: grid; place-items: center; margin: 0; background: rgba(7,7,8,.98); transform: translateX(100%); transition: transform .3s; }
  .site-nav.is-open { transform: translateX(0); }
  .menu { flex-direction: column; gap: 15px; }
  .menu a { font-size: 1.1rem; }
  .nav-toggle { position: relative; z-index: 30; display: block; }
  .nav-toggle[aria-expanded="true"] i:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] i:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] i:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .header-cta { display: none; }
  .hero h1 { font-size: clamp(3.3rem, 5.8vw, 4.3rem); }
  .hero__grid { grid-template-columns: 1fr .75fr; }
  .hero__trust > div { min-width: 120px; }
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-action { padding-left: 0; border-left: 0; }
}

@media (max-width: 800px) {
  :root { --wrap: calc(100% - 34px); }
  .topline__inner > span { display: none; }
  .topline__inner { justify-content: center; }
  .topline__contacts { gap: 16px; }
  .brand img, .brand .custom-logo { width: 142px; }
  .nav-shell { min-height: 70px; }
  .hero { min-height: auto; }
  .hero__grid { display: flex; flex-direction: column; min-height: 0; padding-top: 150px; }
  .hero__copy { padding: 45px 0 20px; }
  .hero h1 { font-size: clamp(2.85rem, 11vw, 3.8rem); line-height: 1.04; }
  .hero__lead { margin: 24px 0 28px; }
  .hero__actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .hero__trust { margin-top: 45px; }
  .hero__trust > div { min-width: 0; flex: 1; margin-right: 12px; padding-right: 12px; }
  .hero__trust strong { font-size: 1.2rem; }
  .hero__visual { width: 100%; min-height: 0; padding: 48px 0 68px; flex-direction: column; overflow: visible; }
  .hero__visual::after { display: none; }
  .hero__visual > img { width: min(275px, 74vw); max-height: none; transform: none; filter: drop-shadow(0 26px 34px rgba(0,0,0,.46)); }
  .hero__ring { top: 54px; left: 50%; transform: translateX(-50%); }
  .hero__ring--one { width: 390px; height: 390px; }
  .hero__ring--two { width: 310px; height: 310px; animation: none; }
  .hero__product-label { position: relative; right: auto; bottom: auto; align-self: center; width: min(250px, 78vw); margin-top: 22px; }
  .hero__scroll { display: none; }
  .section { padding: 82px 0; }
  .section-heading, .selector__head { grid-template-columns: 1fr; gap: 24px; margin-bottom: 40px; }
  .section-heading h2, .why h2, .selector h2, .inquiry h2, .product-details h2, .product-inquiry h2 { font-size: clamp(2.5rem, 12vw, 4rem); }
  .category-cards { grid-template-columns: 1fr; }
  .category-card { min-height: 300px; }
  .category-card h3 { margin-top: 75px; }
  .product-grid, .product-grid--home { grid-template-columns: repeat(2, 1fr); gap: 22px 13px; }
  .product-card__media { min-height: 300px; }
  .product-card__media img { width: 160px; height: 240px; }
  .why__grid, .inquiry__grid, .product-hero__grid, .product-details__grid, .product-inquiry__inner { grid-template-columns: 1fr; gap: 55px; }
  .why__visual { min-height: 450px; }
  .why__outline { display: none; }
  .oil-drop { left: 20px; }
  .steps { grid-template-columns: 1fr; }
  .steps article, .steps article + article { min-height: 230px; padding: 30px 20px; border-right: 0; border-bottom: 1px solid var(--line); }
  .steps article:last-child { border-bottom: 0; }
  .steps__icon { margin-bottom: 30px; }
  .selector__cta { align-items: flex-start; flex-direction: column; }
  .selector__cta .btn { margin-left: 0; }
  .inquiry__contacts { flex-direction: column; }
  .inquiry__form { padding: 30px 22px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .form-submit { align-items: flex-start; flex-direction: column; }
  .form-submit .btn { width: 100%; margin: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .page-hero { min-height: 500px; padding-top: 160px; }
  .page-hero h1 { font-size: clamp(3.3rem, 15vw, 5rem); }
  .page-hero__pattern { font-size: 7rem; }
  .catalog-toolbar { align-items: stretch; flex-direction: column; }
  .filter-group { flex-wrap: wrap; }
  .filter-group > span { width: 100%; }
  .catalog-search { width: 100%; }
  .catalog-help__inner { grid-template-columns: 1fr; gap: 18px; }
  .product-hero { padding-top: 155px; }
  .product-gallery { min-height: 0; padding: 10px 0 6px; justify-content: flex-start; }
  .product-gallery__series { position: static; align-self: flex-start; margin-bottom: 28px; }
  .product-gallery__halo { top: 115px; width: min(340px, 86vw); height: min(340px, 86vw); }
  .product-gallery img { width: min(290px, 76vw); max-height: 410px; }
  .product-gallery small { position: static; max-width: 310px; margin-top: 22px; line-height: 1.5; text-align: center; }
  .product-summary > .text-link { margin: 20px 0 0; }
  .product-details__grid { gap: 45px; }
  .product-grid--related { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .topline__contacts a:first-child { display: none; }
  .hero__copy { width: 100%; min-width: 0; }
  .hero h1 { max-width: 100%; font-size: clamp(2.05rem, 9.2vw, 2.25rem); line-height: 1.06; letter-spacing: -.018em; }
  .hero__trust span { font-size: .52rem; }
  .hero__visual { min-height: 0; padding: 38px 0 58px; }
  .hero__ring--one { width: 320px; height: 320px; }
  .hero__ring--two { width: 255px; height: 255px; }
  .product-grid, .product-grid--home, .product-grid--related { grid-template-columns: 1fr; }
  .product-card__media { min-height: 360px; }
  .product-card__media img { width: 200px; height: 285px; }
  .why__visual { min-height: 360px; }
  .why__badge { right: 0; }
  .product-key-specs { grid-template-columns: 1fr; }
  .product-key-specs div, .product-key-specs div + div { padding: 13px 0; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .product-key-specs div:last-child { border-bottom: 0; }
  .spec-panel { padding: 26px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}