:root {
  --bg: #0d0a07;
  --bg2: #1b0f05;
  --panel: #120d08;
  --panel2: #1c1209;
  --line: #352313;
  --orange: #ff6b00;
  --orange2: #a14300;
  --blue: #24b8ff;
  --text: #fff7ef;
  --muted: #8e8985;
  --max: 1120px;
  --header: 92px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Tahoma, Verdana, Arial, sans-serif;
  line-height: 1.55;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.skip-link { position: fixed; left: 12px; top: 12px; z-index: 999; padding: 10px 12px; background: var(--orange); color: #fff; transform: translateY(-160%); }
.skip-link:focus { transform: none; }
.site-header { position: sticky; top: 0; z-index: 90; background: #0b0806; border-bottom: 1px solid var(--line); }
.header-inner { width: min(var(--max), calc(100% - 28px)); min-height: var(--header); margin: 0 auto; display: grid; grid-template-columns: 1fr auto auto; gap: 18px; align-items: center; }
.brand { display: inline-flex; gap: 12px; align-items: center; min-width: 0; }
.brand-mark { width: 58px; height: 58px; border: 2px solid var(--orange2); border-radius: 14px; background: rgba(255,107,0,.09); position: relative; }
.brand-mark::before { content: ""; position: absolute; inset: 14px 10px; background: repeating-linear-gradient(0deg, transparent 0 8px, var(--orange) 8px 12px); border-radius: 14px; transform: skewX(-18deg); }
.brand-name { display: block; color: #fff; font: 900 27px/1 "Arial Black", Impact, Tahoma, sans-serif; text-transform: uppercase; letter-spacing: 0; }
.brand-caption { display: block; color: var(--orange); font-size: 11px; font-weight: 900; text-transform: uppercase; }
.header-phone { display: inline-flex; min-height: 54px; align-items: center; gap: 12px; color: #fff; font-size: 22px; font-weight: 900; white-space: nowrap; }
.phone-dot { display: grid; width: 54px; height: 54px; place-items: center; border-radius: 14px; color: var(--orange); background: #3a1c06; }
.menu-toggle { display: grid; width: 54px; height: 54px; place-items: center; border: 1px solid var(--line); border-radius: 14px; color: #fff; background: #120d08; cursor: pointer; }
.menu-bars { position: relative; width: 25px; height: 17px; }
.menu-bars::before,.menu-bars::after,.menu-bars span { content: ""; position: absolute; left: 0; width: 25px; height: 2px; background: currentColor; border-radius: 2px; }
.menu-bars::before { top: 0; }.menu-bars span { top: 7px; }.menu-bars::after { bottom: 0; }
body.menu-open .menu-bars::before { transform: translateY(7px) rotate(45deg); }
body.menu-open .menu-bars span { opacity: 0; }
body.menu-open .menu-bars::after { transform: translateY(-8px) rotate(-45deg); }
.nav-drawer { position: fixed; inset: 0; z-index: 120; pointer-events: none; background: rgba(0,0,0,0); transition: background .2s; }
body.menu-open .nav-drawer { pointer-events: auto; background: rgba(0,0,0,.65); }
.nav-panel { width: min(360px, calc(100vw - 42px)); min-height: 100%; margin-left: auto; padding: 38px 22px 28px; background: #0d0a07; border-left: 1px solid var(--line); transform: translateX(110%); transition: transform .25s; }
body.menu-open .nav-panel { transform: none; }
.nav-list,.subnav { list-style: none; margin: 0; padding: 0; }
.nav-list { display: grid; gap: 15px; }
.nav-list > li > a,.nav-title { color: #fff; font: 900 21px/1.08 "Arial Black", Impact, Tahoma, sans-serif; text-transform: uppercase; }
.subnav { display: grid; gap: 7px; margin-top: 9px; padding-left: 14px; border-left: 2px solid var(--orange); }
.subnav a { color: var(--muted); font-size: 15px; font-weight: 900; }
.telegram-menu-link { color: var(--blue) !important; }
.telegram-float { position: fixed; right: 18px; bottom: 18px; z-index: 70; display: inline-flex; min-height: 58px; align-items: center; gap: 12px; padding: 10px 18px 10px 12px; border: 1px solid #0b5678; border-radius: 18px; color: var(--blue); background: #061820; box-shadow: 0 18px 38px rgba(0,0,0,.42); font-weight: 900; transition: transform .18s ease, opacity .18s ease; }
.telegram-float span { display: grid; width: 38px; height: 38px; place-items: center; border-radius: 12px; background: #0b2733; color: var(--blue); font: 900 15px/1 "Arial Black", Impact, Tahoma, sans-serif; }
.telegram-float b { color: #fff; font-size: 18px; }
.telegram-float:hover { transform: translateY(-2px); }
body.menu-open .telegram-float { opacity: 0; pointer-events: none; }
.section,.hero,.page-hero { width: min(var(--max), calc(100% - 28px)); margin: 0 auto; }
.hero { display: grid; grid-template-columns: 1fr; justify-items: center; text-align: center; padding: 84px 0 86px; background: radial-gradient(circle at 50% 20%, rgba(255,107,0,.14), transparent 42%); }
.hero h1,.page-hero h1,.section h2 { margin: 0; color: #fff; font-family: "Arial Black", Impact, Tahoma, sans-serif; line-height: 1.02; letter-spacing: 0; }
.hero h1 { max-width: 900px; font-size: 70px; }
.hero h1 span,.accent { color: var(--orange); }
.eyebrow,.section-kicker { display: inline-flex; align-items: center; justify-content: center; padding: 12px 28px; margin-bottom: 42px; border: 2px solid var(--orange2); border-radius: 999px; color: var(--orange); font-size: 18px; font-weight: 900; letter-spacing: 4px; text-transform: uppercase; background: rgba(255,107,0,.07); }
.hero-lead,.page-lead { max-width: 820px; margin: 26px auto 0; color: #b4afaa; font-size: 28px; line-height: 1.55; }
.hero-phone { display: block; margin-top: 10px; color: #fff; font-size: 30px; font-weight: 900; }
.check-line { display: flex; justify-content: center; gap: 16px; max-width: 860px; margin: 34px auto 0; padding-top: 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: 22px; }
.check-line b { color: var(--orange); }
.action-row { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 42px; }
.button { display: inline-flex; min-height: 74px; align-items: center; justify-content: center; gap: 14px; padding: 0 36px; border-radius: 16px; background: var(--orange); color: #fff; font-size: 24px; font-weight: 900; border: 1px solid transparent; }
.button.secondary { background: #071c25; color: var(--blue); border-color: #0b5678; }
.button.light { background: transparent; color: #fff; border-color: var(--line); }
.section { padding: 84px 0; }
.content-band { background: #0a0705; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 22px; margin-bottom: 30px; }
.section h2 { font-size: 46px; }
.section-copy { max-width: 760px; color: var(--muted); font-size: 19px; }
.product-grid,.service-grid,.contact-grid,.grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 22px; }
.certificate-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.product-card,.service-card,.contact-card,.info-card,.card { border: 1px solid var(--line); border-radius: 28px; background: var(--panel); padding: 34px; box-shadow: inset 0 1px 0 rgba(255,107,0,.18); }
.quick-sections { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 14px; }
.quick-sections a { display: flex; min-height: 76px; align-items: center; justify-content: center; padding: 16px; border: 1px solid var(--line); border-radius: 18px; background: var(--panel); color: #fff; font-weight: 900; text-align: center; }
.quick-sections a:hover { border-color: var(--orange2); color: var(--orange); }
.certificate-card { display: block; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: inset 0 1px 0 rgba(255,107,0,.18); }
.certificate-card img { width: 100%; height: 260px; object-fit: cover; object-position: top center; transition: transform .2s ease; }
.certificate-card:hover img { transform: scale(1.03); }
.product-card.featured { border-top: 8px solid var(--orange); }
.product-visual { display: grid; place-items: center; height: 310px; margin-bottom: 30px; border: 1px solid var(--line); border-radius: 22px; background: #1a0d05; }
.bottle { position: relative; width: 108px; height: 228px; border-radius: 28px 28px 15px 15px; background: linear-gradient(90deg,#e25d00,#ff7a00 34%,#ff9a35 55%,#cf5200); box-shadow: inset -18px 0 0 rgba(0,0,0,.13); }
.bottle::before { content: ""; position: absolute; top: -34px; left: 34px; width: 40px; height: 44px; border-radius: 15px 15px 5px 5px; background: #ff7a00; }
.bottle::after { content: "N₂O"; position: absolute; left: 0; right: 0; top: 92px; color: #fff6eb; font-weight: 900; text-align: center; }
.product-name,.service-card h3,.contact-card h3,.info-card h3,.card h3 { margin: 0 0 18px; color: #fff; font-size: 34px; line-height: 1.12; }
.product-card p,.service-card p,.contact-card p,.info-card p,.card p { color: var(--muted); font-size: 19px; }
.price-list { display: grid; gap: 22px; margin: 26px 0 0; }
.price-line { display: grid; gap: 6px; }
.price-line dt { color: #5f5a56; font-size: 17px; font-weight: 900; letter-spacing: 2px; text-transform: uppercase; }
.price-line dd { margin: 0; color: var(--orange); font-size: 38px; font-weight: 900; }
.price-line.exchange dd { color: var(--blue); }
.card-actions { display: grid; gap: 16px; margin-top: 30px; padding-top: 30px; border-top: 1px solid var(--line); }
.text-link,.card-note { color: var(--orange); font-weight: 900; }
.page-hero { padding: 76px 0 46px; text-align: center; }
.page-hero h1 { font-size: 56px; }
.rich-text { color: #c0bab4; font-size: 20px; }
.rich-text p { margin: 0 0 18px; }
.rich-text ul { margin: 0 0 20px; padding-left: 22px; }
.rich-text li { margin: 8px 0; }
.seo-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.seo-list li { padding: 16px 18px; border-left: 5px solid var(--orange); background: #15100c; color: #d9d0c8; font-weight: 800; }
.faq-list { display: grid; gap: 14px; }
.faq-list details { border: 1px solid var(--line); border-radius: 18px; background: var(--panel); padding: 0; overflow: hidden; }
.faq-list summary { cursor: pointer; list-style: none; padding: 22px 24px; color: #fff; font-size: 21px; font-weight: 900; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; float: right; color: var(--orange); font-size: 28px; line-height: 1; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { margin: 0; padding: 0 24px 24px; color: #c0bab4; font-size: 19px; }
.warning { padding: 24px; border: 1px solid var(--orange2); border-radius: 18px; color: #ffd2ad; background: rgba(255,107,0,.08); font-weight: 800; }
.two-column { display: grid; grid-template-columns: minmax(0,1fr) 380px; gap: 24px; align-items: start; }
.legal-warning { padding: 50px 0; text-align: center; background: linear-gradient(180deg,#ff6b00,#2b1305); color: #fff; }
.legal-warning-inner { width: min(960px, calc(100% - 28px)); margin: 0 auto; }
.legal-warning strong { display: block; font: 900 34px/1.15 "Arial Black", Impact, Tahoma, sans-serif; }
.legal-warning p { margin: 16px 0 0; font-size: 20px; }
.site-footer { padding: 38px 0; background: #090604; color: var(--muted); }
.footer-inner { width: min(var(--max), calc(100% - 28px)); margin: 0 auto; display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: center; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; color: #fff; font-weight: 900; }
@media (max-width: 860px) {
  :root { --header: 92px; }
  .header-inner { grid-template-columns: 1fr auto auto; gap: 12px; }
  .header-phone { font-size: 20px; }
  .brand-mark { width: 56px; height: 56px; }
  .brand-name { font-size: 22px; }
  .hero { padding: 74px 0 72px; }
  .hero h1 { font-size: 46px; }
  .hero-lead,.page-lead { font-size: 22px; }
  .product-grid,.service-grid,.contact-grid,.grid,.two-column,.quick-sections { grid-template-columns: 1fr; }
  .certificate-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .section-head { display: block; }
}
@media (max-width: 560px) {
  .header-inner,.section,.hero,.page-hero { width: min(100% - 32px, var(--max)); }
  .header-inner { min-height: 86px; gap: 8px; }
  .brand { gap: 8px; }
  .brand-mark { width: 42px; height: 42px; border-radius: 12px; }
  .brand-mark::before { inset: 10px 8px; }
  .brand-name { font-size: 15px; }
  .brand-caption { display: none; }
  .header-phone { gap: 6px; font-size: 15px; letter-spacing: 0; }
  .phone-dot,.menu-toggle { width: 40px; height: 40px; border-radius: 11px; }
  .nav-panel { width: min(300px, calc(100vw - 72px)); padding: 22px 18px 24px; }
  .nav-list { gap: 12px; }
  .nav-list > li > a,.nav-title { font-size: 18px; line-height: 1.08; }
  .subnav { gap: 6px; margin-top: 8px; padding-left: 12px; }
  .subnav a { font-size: 14px; line-height: 1.25; }
  .hero { padding: 54px 0 56px; }
  .eyebrow,.section-kicker { padding: 9px 18px; margin-bottom: 28px; font-size: 12px; letter-spacing: 3px; }
  .hero h1 { font-size: 34px; }
  .page-hero h1,.section h2 { font-size: 29px; }
  .hero-lead,.page-lead { margin-top: 18px; font-size: 17px; line-height: 1.45; }
  .hero-phone { font-size: 21px; }
  .check-line { gap: 10px; margin-top: 24px; padding-top: 20px; font-size: 16px; }
  .action-row { margin-top: 28px; }
  .button { width: 100%; min-height: 56px; padding: 0 22px; border-radius: 14px; font-size: 18px; }
  .section { padding: 48px 0; }
  .section-copy { font-size: 17px; }
  .product-card,.service-card,.contact-card,.info-card,.card { padding: 12px; border-radius: 16px; }
  .certificate-grid { grid-template-columns: 1fr; gap: 18px; }
  .certificate-card img { height: auto; max-height: none; }
  .product-card.featured { border-top-width: 4px; }
  .product-visual { height: 96px; margin-bottom: 10px; border-radius: 13px; }
  .bottle { width: 40px; height: 84px; border-radius: 12px 12px 7px 7px; }
  .bottle::before { top: -13px; left: 13px; width: 15px; height: 17px; border-radius: 7px 7px 3px 3px; }
  .bottle::after { top: 34px; font-size: 8px; }
  .product-name,.service-card h3,.contact-card h3,.info-card h3,.card h3 { margin-bottom: 7px; font-size: 18px; }
  .product-card p,.service-card p,.contact-card p,.info-card p,.card p { margin: 0; font-size: 15px; line-height: 1.4; }
  .price-list { gap: 8px; margin-top: 10px; }
  .price-line { gap: 3px; }
  .price-line dt { font-size: 12px; letter-spacing: 1.2px; }
  .faq-list summary { padding: 18px; font-size: 19px; }
  .faq-list p { padding: 0 18px 18px; font-size: 17px; }
  .price-line dd { font-size: 22px; line-height: 1.05; }
  .card-actions { gap: 8px; margin-top: 12px; padding-top: 12px; }
  .product-card .button { min-height: 46px; border-radius: 12px; font-size: 16px; }
  .rich-text { font-size: 17px; line-height: 1.5; }
  .seo-list li { padding: 13px 15px; font-size: 15px; }
  .page-hero { padding: 56px 0 34px; }
  .footer-inner { grid-template-columns: 1fr; }
  .telegram-float { left: 16px; right: 16px; bottom: 14px; justify-content: center; min-height: 56px; padding: 9px 14px; border-radius: 15px; }
  .telegram-float b { font-size: 17px; }
}