/* СВЕТ LED — стили сайта, версия 2026-09-18 */
:root {
  --red: #e8392a;
  --red-dark: #c92c1f;
  --ink: #121315;
  --text: #34363b;
  --muted: #6b6e75;
  --line: #e4e4df;
  --paper: #f5f5f1;
  --dark: #121315;
  --white: #fff;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px rgba(18, 19, 21, .08);
  --container: 1240px;
  --gutter: 24px;
  --header-h: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: Manrope, Arial, sans-serif; color: var(--text); background: #fff; font-size: 16px; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
h1, h2, h3 { color: var(--ink); margin: 0; }
p { margin: 0; }
section[id], footer[id] { scroll-margin-top: calc(var(--header-h) + 12px); }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }

.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; padding: 10px 16px; background: var(--ink); color: #fff; border-radius: 6px; }
.skip-link:focus { top: 12px; }

.container { width: min(var(--container), calc(100% - var(--gutter) * 2)); margin: 0 auto; }
.section { padding: 96px 0; }
.section.tint { background: var(--paper); }
.section.dark { background: var(--dark); color: #b9bbc0; }
.section.dark h2, .section.dark h3 { color: #fff; }

.kicker { margin: 0 0 14px; color: var(--red); font-size: 12px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.section-head { max-width: 780px; margin-bottom: 48px; }
.section-head h2, .calculator h2, .showroom h2 { font-size: clamp(30px, 3.6vw, 48px); line-height: 1.08; letter-spacing: -.035em; margin-bottom: 18px; }
.section-head > p:not(.kicker) { color: var(--muted); font-size: 18px; }
.dark .section-head > p:not(.kicker) { color: #9a9ca2; }
.text-link { color: var(--red); font-weight: 700; white-space: nowrap; }

/* Кнопки */
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 52px; padding: 14px 26px; border: 1.5px solid transparent; border-radius: 8px; font: inherit; font-weight: 700; line-height: 1.2; cursor: pointer; transition: background .2s, border-color .2s, transform .2s, box-shadow .2s; }
.button b { font-weight: 700; transition: transform .2s; }
.button:hover b { transform: translateX(3px); }
.primary { background: var(--red); color: #fff; box-shadow: 0 8px 22px rgba(232, 57, 42, .28); }
.primary:hover { background: var(--red-dark); }
.ghost { border-color: rgba(255,255,255,.45); color: #fff; background: rgba(255,255,255,.06); }
.ghost:hover { border-color: #fff; background: rgba(255,255,255,.14); }
.line { border-color: var(--ink); color: var(--ink); }
.line:hover { background: var(--ink); color: #fff; }
.button[disabled] { opacity: .6; cursor: wait; }

/* Шапка */
.header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(10px); border-bottom: 1px solid #ececec; }
.header-inner { display: flex; align-items: center; gap: 28px; height: var(--header-h); width: min(1320px, calc(100% - var(--gutter) * 2)); margin: 0 auto; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--ink); font-size: 18px; letter-spacing: .02em; white-space: nowrap; flex: none; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; background: var(--red); color: #fff; border-radius: 50% 50% 48% 52% / 58% 45% 55% 42%; font-weight: 800; font-style: italic; }
.brand-text small { display: block; margin-top: 1px; color: #7a7c82; font-size: 9px; letter-spacing: .12em; text-transform: uppercase; }
.nav { display: flex; gap: 24px; margin: 0 auto; font-size: 14px; font-weight: 600; color: #3b3d42; }
.nav a { position: relative; padding: 6px 0; white-space: nowrap; }
.nav a:hover { color: var(--red); }
.nav-phone { display: none; }
.header-contact { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.25; }
.header-phone { color: var(--ink); font-size: 17px; font-weight: 800; white-space: nowrap; }
.header-phone:hover { color: var(--red); }
.header-mail { color: var(--muted); font-size: 12px; }
.header-cta { min-height: 44px; padding: 10px 18px; font-size: 14px; box-shadow: none; }
.header-call, .menu { display: none; }

/* Первый экран */
.hero { position: relative; overflow: hidden; background: #0c0d0f; color: #fff; }
.hero-image, .hero-shade { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-image { display: block; object-fit: cover; object-position: 70% center; }
picture { display: contents; }
.hero-shade { background: linear-gradient(90deg, rgba(8,9,10,.95) 0%, rgba(8,9,10,.8) 45%, rgba(8,9,10,.35) 100%); }
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 64px; align-items: center; width: min(var(--container), calc(100% - var(--gutter) * 2)); margin: 0 auto; padding: 56px 0 72px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; color: #9ea0a6; font-size: 13px; }
.breadcrumbs a { color: #d6d7da; }
.breadcrumbs a:hover { color: #fff; }
.home-page .breadcrumbs { display: none; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: #d0d1d4; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow span { width: 28px; height: 2px; background: var(--red); flex: none; }
.hero h1 { max-width: 760px; margin: 20px 0; color: #fff; font-size: clamp(38px, 5.2vw, 72px); line-height: 1.02; letter-spacing: -.045em; }
.hero-content > p { max-width: 640px; color: #d4d5d8; font-size: 19px; }
.hero-checks { display: grid; gap: 8px; margin: 26px 0 0; padding: 0; list-style: none; color: #f0f0f1; font-weight: 600; }
.hero-checks li { position: relative; padding-left: 30px; }
.hero-checks li:before { content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='3'/%3E%3C/svg%3E") center / 12px no-repeat; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.hero-form { display: grid; gap: 14px; padding: 28px; background: #fff; color: var(--ink); border-radius: var(--radius); box-shadow: 0 30px 80px rgba(0,0,0,.35); }
.hero-form-title { font-size: 22px; font-weight: 800; line-height: 1.2; letter-spacing: -.02em; }
.hero-form-sub { margin-top: -6px; color: var(--muted); font-size: 14px; line-height: 1.45; }

/* Поля форм */
.lead-form label { display: block; color: var(--ink); font-size: 12px; font-weight: 700; }
.lead-form input:not([type=checkbox]):not([type=radio]), .lead-form select, .lead-form textarea { display: block; width: 100%; margin-top: 6px; padding: 13px 14px; border: 1.5px solid #dcdcd6; border-radius: 8px; background: #fff; color: var(--ink); font: inherit; font-size: 16px; font-weight: 500; transition: border-color .15s, box-shadow .15s; }
.lead-form select { appearance: none; background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6' fill='none' stroke='%23121315' stroke-width='2'/%3E%3C/svg%3E") right 12px center / 18px no-repeat; padding-right: 40px; }
.lead-form textarea { resize: vertical; min-height: 84px; }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px rgba(18,19,21,.08); }
.lead-form input::placeholder, .lead-form textarea::placeholder { color: #9fa1a6; }
.lead-form input[aria-invalid="true"] { border-color: var(--red); background: #fff6f5; }
.lead-form .req { color: var(--red); margin-left: 2px; }
.lead-form .consent { display: flex; gap: 10px; align-items: flex-start; color: var(--muted); font-size: 12px; font-weight: 500; line-height: 1.45; }
.lead-form .consent input { width: 18px; height: 18px; margin: 0; flex: none; accent-color: var(--red); }
.lead-form .consent a { text-decoration: underline; }
.lead-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.lead-form .button { width: 100%; }
.form-error { color: #c0261a; font-size: 14px; font-weight: 700; }
.success { display: flex; flex-direction: column; gap: 4px; padding: 16px 18px; background: #e9f6ee; border-radius: 12px; color: #1d5c3c; }
.success strong { color: #14482e; font-size: 17px; }
.success a { text-decoration: underline; }

/* Факты */
.facts { border-bottom: 1px solid var(--line); background: #fff; }
.facts-inner { display: grid; grid-template-columns: repeat(4, 1fr); width: min(var(--container), calc(100% - var(--gutter) * 2)); margin: 0 auto; }
.fact { display: flex; gap: 14px; align-items: center; padding: 26px 20px; }
.fact + .fact { border-left: 1px solid var(--line); }
.fact svg { width: 30px; height: 30px; flex: none; fill: none; stroke: var(--red); stroke-width: 1.8; stroke-linejoin: round; stroke-linecap: round; }
.fact strong { display: block; color: var(--ink); font-size: 15px; line-height: 1.3; }
.fact span { display: block; color: var(--muted); font-size: 13px; line-height: 1.35; }

/* Решения */
.solution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.solution-card { display: flex; flex-direction: column; min-height: 230px; padding: 30px; background: var(--paper); border: 1px solid transparent; border-radius: var(--radius); transition: transform .25s, border-color .25s, box-shadow .25s, background .25s; }
.solution-card .icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: #fff; color: var(--red); font-size: 24px; }
.solution-card h3 { margin: 26px 0 10px; font-size: 21px; line-height: 1.25; }
.solution-card p { color: var(--muted); }
.solution-card small { margin-top: auto; padding-top: 22px; color: var(--red); font-size: 14px; font-weight: 800; }
a.solution-card:hover { transform: translateY(-4px); background: #fff; border-color: var(--line); box-shadow: var(--shadow); }

/* Стоимость */
.config { display: grid; grid-template-columns: 1.1fr .9fr; gap: 72px; align-items: center; }
.config-copy h2 { font-size: clamp(30px, 3.6vw, 48px); line-height: 1.08; letter-spacing: -.035em; margin-bottom: 18px; }
.config-copy > p:not(.kicker) { color: var(--muted); font-size: 18px; }
.check-list { display: grid; gap: 0; margin: 28px 0 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 14px 0 14px 34px; border-bottom: 1px solid #dddcd5; color: var(--ink); font-weight: 600; }
.check-list li:before { content: ""; position: absolute; left: 0; top: 16px; width: 20px; height: 20px; border-radius: 50%; background: var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='3'/%3E%3C/svg%3E") center / 13px no-repeat; }
.spec-card { padding: 36px; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); }
.spec-label { color: var(--red); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.spec-card h3 { margin: 10px 0 18px; font-size: 24px; line-height: 1.25; }
.spec-card dl { margin: 0 0 26px; }
.spec-card dl div { display: flex; justify-content: space-between; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.spec-card dt { color: var(--muted); }
.spec-card dd { margin: 0; color: var(--ink); font-weight: 700; text-align: right; }
.spec-card .button { width: 100%; }

/* Подбор шага пикселя */
.pitch { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.pitch .section-head { margin-bottom: 0; }
.pitch-tool { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.pitch-range span { display: block; margin-bottom: 14px; color: var(--ink); font-weight: 700; }
.pitch-range output { color: var(--red); font-size: 20px; }
.pitch-range input { width: 100%; height: 6px; accent-color: var(--red); cursor: pointer; }
.pitch-result { display: grid; gap: 8px; margin-top: 26px; padding: 22px; border-radius: 12px; background: var(--paper); }
.pitch-caption { display: block; color: var(--muted); font-size: 13px; }
.pitch-result strong { color: var(--ink); font-size: 36px; line-height: 1.1; letter-spacing: -.03em; }
.pitch-result p { color: var(--text); }
.pitch-scale { display: flex; justify-content: space-between; margin-top: 14px; color: #a0a2a7; font-size: 12px; font-weight: 700; }
.pitch-cta { display: inline-block; margin-top: 22px; color: var(--red); font-weight: 800; }
.pitch-cta:hover { text-decoration: underline; }

/* Этапы */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 0; padding: 0; list-style: none; counter-reset: step; }
.steps li { position: relative; padding: 28px; background: #fff; border-radius: var(--radius); }
.steps b { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--ink); color: #fff; font-size: 16px; }
.steps li:not(:last-child):after { content: ""; position: absolute; top: 48px; right: -16px; width: 16px; height: 2px; background: #d2d2cb; }
.steps h3 { margin: 22px 0 8px; font-size: 19px; }
.steps p { color: var(--muted); font-size: 15px; }

/* Шоурум */
.showroom { padding: 72px 0; background: var(--red); color: #fff; }
.showroom h2 { color: #fff; }
.showroom .kicker { color: #ffd9d5; }
.showroom-inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: center; }
.showroom-inner > div > p:not(.kicker) { max-width: 620px; color: #ffe4e1; font-size: 17px; }
.showroom-card { padding: 30px; background: #fff; color: var(--ink); border-radius: var(--radius); }
.showroom-card address { font-style: normal; color: var(--muted); }
.showroom-phone { display: block; margin: 6px 0 20px; font-size: 28px; font-weight: 800; letter-spacing: -.02em; }
.showroom-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.showroom-actions .button { flex: 1 1 auto; }
.showroom-actions .primary { box-shadow: none; }

/* Преимущества */
.benefit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.benefit-grid article { padding: 28px; border: 1px solid #2c2e33; border-radius: var(--radius); }
.benefit-grid article:before { content: ""; display: block; width: 32px; height: 3px; margin-bottom: 26px; background: var(--red); }
.benefit-grid h3 { margin-bottom: 10px; font-size: 19px; }
.benefit-grid p { color: #9a9ca2; font-size: 15px; }

/* Подробный расчёт */
.calculator { padding: 96px 0; background: var(--ink); color: #fff; }
.calc-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; align-items: start; }
.calculator h2 { color: #fff; }
.calc-copy > p:not(.kicker) { color: #b9bbc0; font-size: 18px; }
.calc-points { display: grid; gap: 10px; margin: 28px 0 0; padding: 0; list-style: none; }
.calc-points li { position: relative; padding-left: 30px; color: #f0f0f1; font-weight: 600; }
.calc-points li:before { content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%; background: var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='white' stroke-width='3'/%3E%3C/svg%3E") center / 12px no-repeat; }
.calc-contacts { display: flex; flex-direction: column; gap: 2px; margin-top: 36px; padding-top: 26px; border-top: 1px solid #2c2e33; }
.calc-contacts p { margin-bottom: 6px; color: #9a9ca2; font-size: 14px; }
.calc-phone { font-size: 28px; font-weight: 800; letter-spacing: -.02em; }
.calc-contacts a:hover { color: #ff8a7f; }
.calc-form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 34px; background: #fff; color: var(--ink); border-radius: var(--radius); }
.calc-form .wide { grid-column: 1 / -1; }
.place { margin: 0; padding: 0; border: 0; min-width: 0; }
.place legend { margin-bottom: 8px; color: var(--ink); font-size: 12px; font-weight: 700; }
.place label { display: inline-block; margin: 0 6px 6px 0; }
.place input { position: absolute; width: 1px; height: 1px; margin: 0; opacity: 0; }
.place span { display: inline-flex; align-items: center; min-height: 42px; padding: 8px 16px; border: 1.5px solid #dcdcd6; border-radius: 100px; font-size: 14px; font-weight: 600; cursor: pointer; transition: .15s; }
.place span:hover { border-color: var(--ink); }
.place input:checked + span { background: var(--ink); border-color: var(--ink); color: #fff; }
.place input:focus-visible + span { outline: 2px solid var(--red); outline-offset: 2px; }

/* Вопросы */
.faq { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: start; }
.faq .section-head { position: sticky; top: calc(var(--header-h) + 24px); margin-bottom: 0; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item button { display: flex; justify-content: space-between; align-items: center; gap: 20px; width: 100%; padding: 22px 0; border: 0; background: none; color: var(--ink); font: inherit; font-size: 17px; font-weight: 700; text-align: left; cursor: pointer; }
.faq-item button:hover { color: var(--red); }
.faq-icon { position: relative; flex: none; width: 32px; height: 32px; border-radius: 50%; background: var(--paper); transition: background .2s, transform .25s; }
.faq-icon:before, .faq-icon:after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; margin: -1px 0 0 -6px; background: var(--ink); }
.faq-icon:after { transform: rotate(90deg); transition: transform .25s; }
.faq-item.open .faq-icon { background: var(--red); }
.faq-item.open .faq-icon:before, .faq-item.open .faq-icon:after { background: #fff; }
.faq-item.open .faq-icon:after { transform: rotate(0); }
.faq-item p { display: none; max-width: 720px; padding: 0 52px 22px 0; color: var(--muted); }
.faq-item.open p { display: block; }

/* Текст и ссылки */
.seo-section { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(280px, .7fr); gap: 64px; }
.seo-copy h2 { max-width: 820px; margin-bottom: 22px; font-size: clamp(26px, 2.8vw, 36px); line-height: 1.15; letter-spacing: -.03em; }
#seo-text { max-width: 800px; color: var(--text); font-size: 16px; }
#seo-text p { margin: 0 0 16px; }
#seo-text h3 { margin: 28px 0 10px; font-size: 20px; }
#seo-text ul { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; margin: 0 0 16px; padding-left: 20px; color: var(--ink); }
.related-card { align-self: start; position: sticky; top: calc(var(--header-h) + 24px); padding: 26px; background: #fff; border-radius: var(--radius); }
.related-card > p { margin-bottom: 10px; color: var(--red); font-size: 12px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.related-card a { display: block; padding: 11px 0; border-bottom: 1px solid var(--line); color: var(--ink); font-size: 14px; font-weight: 700; line-height: 1.35; }
.related-card a:last-child { border-bottom: 0; }
.related-card a:hover { color: var(--red); }

/* Каталог */
.catalog-groups { columns: 3 300px; column-gap: 16px; }
.catalog-group { break-inside: avoid; margin-bottom: 16px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.catalog-group h3 { margin-bottom: 14px; font-size: 18px; }
.catalog-links { display: flex; flex-wrap: wrap; gap: 6px; }
.catalog-links a { display: inline-flex; align-items: center; min-height: 36px; padding: 6px 12px; border-radius: 100px; background: var(--paper); color: var(--ink); font-size: 13px; font-weight: 600; transition: .15s; }
.catalog-links a:hover { background: var(--red); color: #fff; }
.home-page .catalog { background: var(--paper); }
.home-page .catalog-group { border-color: transparent; }

/* Подвал */
.footer { padding: 56px 0 28px; background: #0c0d0f; color: #9a9ca2; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.2fr 1fr; gap: 36px; }
.footer .brand { color: #fff; }
.footer-col { display: flex; flex-direction: column; align-items: flex-start; gap: 7px; }
.footer-col > p { margin-top: 12px; }
.footer-col a:not(.brand) { color: #d0d1d4; }
.footer-col a:not(.brand):hover { color: #fff; }
.footer-title { margin: 0 0 6px !important; color: var(--red); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.footer-phone { color: #fff !important; font-size: 20px; font-weight: 800; }
.footer address { font-style: normal; }
.footer-copy { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid #25272b; color: #6f7177; }

.mobile-bar { display: none; }

/* Документы */
.doc { max-width: 860px; }
.doc h1 { margin-bottom: 24px; font-size: clamp(32px, 5vw, 52px); line-height: 1.05; letter-spacing: -.04em; }
.doc h2 { margin: 32px 0 10px; font-size: 22px; }
.doc p { margin-bottom: 12px; }
.doc a { color: var(--red); }

/* Страница 404 */
.page-404 { min-height: 70vh; display: grid; place-content: center; gap: 16px; text-align: center; }
.page-404 h1 { font-size: clamp(34px, 5vw, 56px); letter-spacing: -.04em; }

/* ── Адаптив ── */
@media (max-width: 1240px) {
  .header-mail { display: none; }
  .nav { gap: 18px; }
}
@media (max-width: 1100px) {
  .header-cta { display: none; }
  .hero-inner { grid-template-columns: 1fr 340px; gap: 40px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps li:after { display: none; }
  .benefit-grid { grid-template-columns: 1fr 1fr; }
  .facts-inner { grid-template-columns: 1fr 1fr; }
  .fact:nth-child(3) { border-left: 0; }
  .fact:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 960px) {
  :root { --header-h: 64px; }
  .header-inner { gap: 10px; }
  .header-contact { display: none; }
  .header-call { display: grid; place-items: center; flex: none; width: 44px; height: 44px; margin-left: auto; border-radius: 50%; background: var(--red); color: #fff; }
  .menu { display: grid; align-content: center; gap: 5px; flex: none; width: 44px; height: 44px; padding: 0 11px; border: 1.5px solid #d6d6d0; border-radius: 10px; background: #fff; cursor: pointer; }
  .menu span { display: block; height: 2px; background: var(--ink); transition: transform .2s, opacity .2s; }
  .menu[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav { display: none; }
  .nav.open { display: flex; flex-direction: column; gap: 0; position: absolute; top: calc(100% + 1px); left: 0; right: 0; margin: 0; padding: 8px 16px 16px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 24px 40px rgba(0,0,0,.12); }
  .nav.open a { display: flex; align-items: center; min-height: 50px; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav.open .nav-phone { border-bottom: 0; color: var(--red); font-size: 18px; font-weight: 800; }
  .section, .calculator { padding: 68px 0; }
  .section-head { margin-bottom: 32px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; padding: 32px 0 40px; }
  .hero-form { max-width: 520px; }
  .hero-shade { background: linear-gradient(180deg, rgba(8,9,10,.82) 0%, rgba(8,9,10,.9) 60%, rgba(8,9,10,.96) 100%); }
  .solution-grid { grid-template-columns: 1fr 1fr; }
  .config, .pitch, .calc-inner, .faq, .seo-section, .showroom-inner { grid-template-columns: 1fr; gap: 36px; }
  .faq .section-head, .related-card { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .mobile-bar { display: grid; grid-template-columns: 1fr 1.4fr; gap: 8px; position: fixed; z-index: 40; left: 0; right: 0; bottom: 0; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.96); border-top: 1px solid var(--line); box-shadow: 0 -8px 30px rgba(0,0,0,.1); backdrop-filter: blur(10px); transition: transform .25s; }
  .mobile-bar.hide { transform: translateY(110%); }
  .mobile-bar a { display: flex; align-items: center; justify-content: center; min-height: 48px; border-radius: 8px; font-weight: 800; }
  .mb-call { border: 1.5px solid var(--ink); color: var(--ink); }
  .mb-calc { background: var(--red); color: #fff; }
  body { padding-bottom: 72px; }
}
@media (max-width: 600px) {
  :root { --gutter: 16px; }
  body { font-size: 15px; }
  .section, .calculator { padding: 56px 0; }
  .section-head > p:not(.kicker), .config-copy > p:not(.kicker), .calc-copy > p:not(.kicker) { font-size: 16px; }
  .brand { font-size: 16px; gap: 9px; }
  .brand-mark { width: 34px; height: 34px; }
  .hero h1 { font-size: clamp(32px, 9.4vw, 42px); overflow-wrap: anywhere; }
  .hero-content > p { font-size: 16px; }
  .eyebrow { font-size: 11px; letter-spacing: .08em; }
  .breadcrumbs { margin-bottom: 18px; }
  .hero-checks { font-size: 15px; }
  .hero-actions { display: none; }
  .hero-form { padding: 22px; }
  .facts-inner { grid-template-columns: 1fr 1fr; }
  .fact { flex-direction: column; align-items: flex-start; gap: 8px; padding: 18px 12px; }
  .fact:nth-child(odd) { padding-left: 0; }
  .fact strong { font-size: 14px; }
  .fact span { font-size: 12px; }
  .solution-grid, .steps, .benefit-grid { grid-template-columns: 1fr; }
  .solution-card { min-height: 0; padding: 24px; }
  .solution-card h3 { margin-top: 18px; }
  .spec-card, .pitch-tool, .calc-form { padding: 22px; }
  .spec-card dl div { flex-direction: column; gap: 2px; }
  .spec-card dd { text-align: left; }
  .pitch-result strong { font-size: 30px; }
  .calc-form { grid-template-columns: 1fr 1fr; gap: 14px; }
  .calc-form > label:not(.half) { grid-column: 1 / -1; }
  .place span { min-height: 40px; padding: 7px 13px; font-size: 13px; }
  .calc-phone, .showroom-phone { font-size: 24px; }
  .showroom { padding: 56px 0; }
  .showroom-card { padding: 22px; }
  .faq-item button { font-size: 16px; padding: 18px 0; }
  .faq-item p { padding-right: 0; }
  #seo-text ul { grid-template-columns: 1fr; }
  .catalog-group { padding: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 370px) {
  .brand-text small { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* Сворачиваемые группы каталога и компактные карточки на телефоне */
.catalog-group summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; list-style: none; cursor: default; }
.catalog-group summary::-webkit-details-marker { display: none; }
.catalog-group summary h3 { margin-bottom: 0; }
.catalog-count { display: none; }
.catalog-group[open] summary { margin-bottom: 14px; }
@media (max-width: 600px) {
  .catalog-group { padding: 0; }
  .catalog-group summary { min-height: 58px; padding: 0 18px; cursor: pointer; }
  .catalog-group summary h3 { font-size: 16px; }
  .catalog-count { display: grid; place-items: center; flex: none; min-width: 30px; height: 30px; padding: 0 8px; border-radius: 100px; background: var(--paper); color: var(--ink); font-size: 13px; font-weight: 800; }
  .home-page .catalog-count { background: #fff; }
  .catalog-group[open] .catalog-count { background: var(--red); color: #fff; }
  .catalog-group[open] summary { margin-bottom: 0; }
  .catalog-links { padding: 0 18px 18px; }
  .catalog-groups { columns: 1; }
  .catalog-group { margin-bottom: 8px; }
  .solution-card { display: grid; grid-template-columns: 44px 1fr; column-gap: 14px; align-items: start; }
  .solution-card .icon { width: 44px; height: 44px; font-size: 20px; border-radius: 12px; }
  .solution-card h3 { margin: 8px 0 6px; font-size: 18px; }
  .solution-card p, .solution-card small { grid-column: 2; }
  .solution-card small { padding-top: 10px; }
  .pitch-cta { display: block; }
}