/* =====================================================================
   KZTM58 — «Паспорт изделия»
   Сталь + бумага + оксид. Чертёжные линии, моно-данные, радиус 0.
   ===================================================================== */

/* ---------- Шрифты ---------- */
@font-face {
    font-family: 'Oswald';
    src: url('../fonts/oswald-v57-cyrillic_latin-500.woff2') format('woff2');
    font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Oswald';
    src: url('../fonts/oswald-v57-cyrillic_latin-600.woff2') format('woff2');
    font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../fonts/inter-v20-cyrillic_latin-regular.woff2') format('woff2');
    font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../fonts/inter-v20-cyrillic_latin-500.woff2') format('woff2');
    font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../fonts/inter-v20-cyrillic_latin-600.woff2') format('woff2');
    font-weight: 600; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'Inter';
    src: url('../fonts/inter-v20-cyrillic_latin-700.woff2') format('woff2');
    font-weight: 700; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'JetBrains Mono';
    src: url('../fonts/jetbrains-mono-v24-cyrillic_latin-regular.woff2') format('woff2');
    font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
    font-family: 'JetBrains Mono';
    src: url('../fonts/jetbrains-mono-v24-cyrillic_latin-600.woff2') format('woff2');
    font-weight: 600; font-style: normal; font-display: swap;
}

/* ---------- Токены ---------- */
:root {
    --steel-950: #101315;
    --steel-900: #181c1f;
    --steel-700: #3a4148;
    --ink: #16191b;
    --ink-soft: #5a6167;
    --paper: #f5f5f2;
    --paper-raised: #ffffff;
    --line: #d9d9d3;
    --line-dark: #2a2f34;
    --oxide: #c2331c;
    --oxide-deep: #9e2412;
    --signal: #ffb800;
    --text-on-dark: #e8e8e4;
    --muted-on-dark: #9aa3ab;

    --font-head: 'Oswald', 'Arial Narrow', sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;

    --container: 1400px;
    --gutter: 24px;
    --header-h: 72px;
}

/* ---------- База ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--ink);
    background: var(--paper);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; font-family: var(--font-head); font-weight: 600; line-height: 1.15; text-transform: uppercase; letter-spacing: 0.01em; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; }
table { border-collapse: collapse; width: 100%; }
button { font: inherit; cursor: pointer; }
input, textarea { font: inherit; }

.mono { font-family: var(--font-mono); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }

.visually-hidden {
    position: absolute; width: 1px; height: 1px; margin: -1px;
    clip: rect(0 0 0 0); overflow: hidden; white-space: nowrap;
}
.skip-link {
    position: absolute; left: -9999px; top: 0; z-index: 100;
    background: var(--oxide); color: #fff; padding: 8px 16px; text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------- Кнопки ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 13px 26px;
    border: 1px solid transparent; border-radius: 2px;
    font-family: var(--font-head); font-weight: 500; font-size: 15px;
    text-transform: uppercase; letter-spacing: 0.06em;
    text-decoration: none; transition: background-color .15s, border-color .15s, color .15s;
}
.btn--oxide { background: var(--oxide); color: #fff; }
.btn--oxide:hover { background: var(--oxide-deep); }
.btn--dark { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--dark:hover { background: var(--ink); color: #fff; }
.btn--light { background: transparent; color: #fff; border-color: var(--line-dark); }
.btn--light:hover { border-color: #fff; }
.btn--lg { padding: 16px 34px; font-size: 16px; }

/* ---------- Шапка ---------- */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: var(--steel-950);
    color: var(--text-on-dark);
    border-bottom: 1px solid var(--line-dark);
}
.site-header__inner {
    display: flex; align-items: center; gap: 28px;
    min-height: var(--header-h);
}
.site-logo { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.site-logo__emblem {
    width: 48px; height: 48px; flex-shrink: 0;
    /* Белый круг эмблемы на тёмной стали — лёгкая «шайба» с оксидным кольцом в самой картинке */
    filter: drop-shadow(0 0 0.5px rgba(255, 255, 255, 0.4));
}
.site-logo__desc {
    font-size: 12px; line-height: 1.4; text-transform: uppercase;
    letter-spacing: 0.06em; color: var(--text-on-dark); font-weight: 500;
}
.site-nav { margin-left: auto; }
.site-nav__list { display: flex; gap: 26px; list-style: none; }
.site-nav__list a {
    text-decoration: none; font-size: 14px; font-weight: 500;
    color: var(--text-on-dark); letter-spacing: 0.02em;
    padding: 6px 0; border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
    white-space: nowrap;
}
.site-nav__list a:hover { color: #fff; }
.site-nav__list a.is-active { color: #fff; border-bottom-color: var(--oxide); }
.site-nav__contacts { display: none; }
.site-header__actions { display: flex; align-items: center; gap: 20px; }
.site-header__phone { color: #fff; text-decoration: none; font-size: 14px; white-space: nowrap; }
.site-header__phone:hover { color: var(--signal); }

.burger { display: none; background: none; border: 0; padding: 10px; }
.burger span {
    display: block; width: 22px; height: 2px; background: #fff; margin: 5px 0;
    transition: transform .2s, opacity .2s;
}
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { background: var(--steel-950); color: var(--text-on-dark); overflow: hidden; }
.hero__inner {
    display: grid; grid-template-columns: 7fr 5fr; gap: 48px;
    align-items: center; padding-top: 64px; padding-bottom: 48px;
}
.hero__label {
    font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em;
    color: var(--muted-on-dark); margin-bottom: 20px;
}
.hero__label::before { content: ''; display: inline-block; width: 32px; height: 1px; background: var(--oxide); vertical-align: middle; margin-right: 12px; }
.hero__title { font-size: clamp(34px, 4.6vw, 62px); color: #fff; margin-bottom: 20px; }
.hero__text { font-size: 17px; max-width: 560px; color: var(--muted-on-dark); margin-bottom: 32px; }
.hero__actions { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.hero__phone { color: #fff; text-decoration: none; font-size: 17px; }
.hero__phone:hover { color: var(--signal); }
.hero__media { position: relative; }
.hero__figure { position: relative; margin: 0; }
.hero__figure img { background: #fff; border: 1px solid var(--line-dark); padding: 20px; }
.hero__dim {
    position: absolute; font-size: 11px; color: var(--muted-on-dark); letter-spacing: 0.08em;
}
.hero__dim--w { left: 0; right: 0; bottom: -26px; text-align: center; border-top: 1px solid var(--line-dark); padding-top: 6px; }
.hero__dim--h { top: 0; bottom: 0; right: -14px; writing-mode: vertical-rl; border-left: 1px solid var(--line-dark); padding-left: 6px; }
.hero__chips-wrap { padding-bottom: 40px; }
.hero__chips {
    display: flex; gap: 0; list-style: none; flex-wrap: wrap;
    border-top: 1px solid var(--line-dark);
}
.hero__chips li {
    font-size: 13px; color: var(--text-on-dark);
    padding: 16px 28px 0 0; margin-right: 28px;
    letter-spacing: 0.03em;
}
.hero__chips li::before { content: '+'; color: var(--oxide); margin-right: 8px; }

/* ---------- Секции ---------- */
.section { padding: 72px 0; }
.section--page-head { padding: 40px 0 8px; }
.section--dark { background: var(--steel-950); color: var(--text-on-dark); }
.section--dark .section__title { color: #fff; }
.section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 40px; }
.section__head--center { display: block; text-align: center; margin-bottom: 40px; }
.section__title { font-size: clamp(26px, 3vw, 40px); margin-bottom: 8px; }
.section__subtitle { color: var(--ink-soft); }
.section--dark .section__subtitle { color: var(--muted-on-dark); }
.section__link { text-decoration: none; font-size: 13px; letter-spacing: 0.04em; color: var(--oxide); white-space: nowrap; }
.section__link:hover { color: var(--oxide-deep); }

.section-label {
    font-family: var(--font-mono); font-size: 12px; text-transform: uppercase;
    letter-spacing: 0.12em; color: var(--ink-soft); margin-bottom: 12px;
}
.section-label__num { color: var(--oxide); }
.section--dark .section-label { color: var(--muted-on-dark); }

/* ---------- Хлебные крошки ---------- */
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; font-family: var(--font-mono); font-size: 12px; color: var(--ink-soft); }
.breadcrumbs li:not(:last-child)::after { content: '/'; margin-left: 6px; color: var(--line); }
.breadcrumbs a { color: var(--ink-soft); text-decoration: none; }
.breadcrumbs a:hover { color: var(--oxide); }

/* ---------- Page head ---------- */
.page-head { padding: 24px 0 8px; max-width: 800px; }
.page-head--split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; max-width: none; }
.page-head__title { font-size: clamp(30px, 3.6vw, 48px); margin-bottom: 14px; }
.page-head__intro { font-size: 17px; color: var(--ink-soft); }
.page-head__facts { display: flex; flex-direction: column; gap: 14px; font-size: 13px; color: var(--ink-soft); border-left: 1px solid var(--line); padding-left: 24px; }
.page-head__facts span { display: block; color: var(--ink); font-weight: 600; font-size: 15px; }

/* ---------- Карточки товара ---------- */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.product-grid--row { grid-template-columns: repeat(3, 1fr); }
.product-card {
    border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
    background: var(--paper-raised);
    position: relative;
}
/* Рамка-ховер: ложится ровно на линии сетки (перекрывает и линии
   соседей), не двоится и ничего не сдвигает */
.product-card::after {
    content: '';
    position: absolute;
    inset: -1px;
    border: 1px solid var(--oxide);
    opacity: 0;
    transition: opacity .2s ease;
    pointer-events: none;
}
.product-card__link { display: flex; flex-direction: column; height: 100%; text-decoration: none; }
.product-card__media {
    position: relative; background: #fff; border-bottom: 1px solid var(--line);
    aspect-ratio: 4 / 3;
    overflow: hidden;
}
.product-card__media img {
    position: absolute; inset: 28px;
    width: calc(100% - 56px); height: calc(100% - 56px);
    object-fit: contain; transition: transform .3s;
}
.product-card:hover .product-card__media img { transform: scale(1.02); }
.product-card:hover { z-index: 1; }
.product-card:hover::after { opacity: 1; }
.product-card__num {
    position: absolute; top: 14px; left: 16px; font-size: 12px;
    color: var(--ink-soft); letter-spacing: 0.08em;
}
.product-card__num::after { content: ' /'; color: var(--oxide); }
.product-card__body { padding: 20px 24px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product-card__title { font-size: 20px; }
.product-card__spec { font-size: 12px; color: var(--ink-soft); letter-spacing: 0.02em; }
.product-card__prices { display: flex; gap: 18px; flex-wrap: wrap; margin-top: auto; padding-top: 10px; }
.product-card__price { font-size: 16px; font-weight: 600; color: var(--oxide); }
.product-card__price small { font-weight: 400; font-size: 11px; color: var(--ink-soft); }
.product-card__price--novat { color: var(--ink); }
.product-card__more { font-family: var(--font-mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); margin-top: 6px; }
.product-card:hover .product-card__more { color: var(--oxide); }
.product-card__arrow { margin-left: 6px; }

/* ---------- Преимущества ---------- */
.adv-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--line); border-left: 1px solid var(--line);
    margin-top: 32px;
}
.adv-item { padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.adv-item__num { font-size: 13px; color: var(--oxide); margin-bottom: 14px; }
.adv-item__num::after { content: ' /'; color: var(--line); }
.adv-item__title { font-family: var(--font-head); font-weight: 600; font-size: 18px; text-transform: uppercase; margin-bottom: 8px; }
.adv-item__text { color: var(--ink-soft); font-size: 15px; }

/* ---------- Шаги ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; margin-top: 32px; }
.steps::before { content: ''; position: absolute; top: 14px; left: 0; right: 0; height: 1px; background: var(--line); }
.steps__item { position: relative; padding-top: 34px; }
.steps__item::before {
    content: ''; position: absolute; top: 8px; left: 0; width: 13px; height: 13px;
    background: var(--paper); border: 1px solid var(--oxide);
}
.steps__num { font-size: 12px; color: var(--oxide); margin-bottom: 6px; letter-spacing: 0.08em; }
.steps__title { font-family: var(--font-head); font-weight: 600; font-size: 17px; text-transform: uppercase; margin-bottom: 6px; }
.steps__text { font-size: 14px; color: var(--ink-soft); }

/* ---------- О заводе тизер ---------- */
.about-teaser { display: grid; grid-template-columns: 1.5fr 1fr; gap: 56px; align-items: start; }
.about-teaser__content p { color: var(--ink-soft); max-width: 560px; margin-bottom: 24px; }
.about-teaser__facts { display: flex; flex-direction: column; }
.about-teaser__facts div { padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--ink-soft); }
.about-teaser__facts div:first-child { border-top: 1px solid var(--line); }
.about-teaser__facts span { display: block; font-size: 20px; font-weight: 600; color: var(--ink); }

.about-why__content { max-width: 720px; }
.about-why__content p { color: var(--ink-soft); }

/* ---------- Видео ---------- */
.video-frame { position: relative; aspect-ratio: 16 / 9; max-width: 860px; margin: 0 auto; border: 1px solid var(--line-dark); }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- CTA-полоса ---------- */
.cta-band { background: var(--steel-950); color: var(--text-on-dark); padding: 64px 0; }
.cta-band__inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: center; }
.cta-band__title { font-size: clamp(24px, 2.8vw, 36px); color: #fff; margin-bottom: 12px; }
.cta-band__text { color: var(--muted-on-dark); margin-bottom: 20px; }
.cta-band__contacts { display: flex; flex-direction: column; gap: 6px; font-size: 15px; }
.cta-band__contacts a { color: var(--text-on-dark); text-decoration: none; }
.cta-band__contacts a:hover { color: var(--signal); }
.cta-band__form { border: 1px solid var(--line-dark); padding: 28px; }

/* ---------- Форма заявки ---------- */
.lead-form__hp { position: absolute; left: -9999px; }
/* Отступ снизу и увеличенный gap в столбике — постоянный резерв
   под сообщение об ошибке телефона (.field-notice, абсолют) */
.lead-form__fields { display: flex; gap: 12px; margin-bottom: 12px; }
.lead-form--stack .lead-form__fields { flex-direction: column; gap: 24px; }
.lead-form__field { flex: 1; display: block; }
.input {
    width: 100%; padding: 13px 16px;
    background: var(--paper-raised); color: var(--ink);
    border: 1px solid var(--line); border-radius: 2px;
}
.input:focus { outline: none; border-color: var(--oxide); }
.section--dark .input, .cta-band .input, .popup .input { background: var(--steel-900); color: #fff; border-color: var(--line-dark); }
.section--dark .input:focus, .cta-band .input:focus, .popup .input:focus { border-color: var(--oxide); }
.lead-form__agree { font-size: 12px; color: var(--ink-soft); margin-top: 12px; }
.cta-band .lead-form__agree, .section--dark .lead-form__agree { color: var(--muted-on-dark); }
.lead-form__agree a { color: inherit; }

/* Согласие на обработку ПД (паттерн rezina).
   Ошибки не дёргают вёрстку: место зарезервировано, сообщения абсолютом. */
.form__consent { margin-top: 12px; position: relative; padding-bottom: 20px; }
.form__checkbox {
    display: flex; align-items: flex-start; gap: 10px;
    font-size: 12px; line-height: 1.5; color: var(--ink-soft);
    cursor: pointer;
}
.form__checkbox input[type="checkbox"] {
    flex-shrink: 0; width: 16px; height: 16px; margin: 1px 0 0;
    accent-color: var(--oxide); cursor: pointer;
}
.form__checkbox a { color: inherit; }
.form__checkbox a:hover { color: var(--oxide); }
.form__consent-notice {
    position: absolute; left: 0; bottom: 0;
    font-family: var(--font-mono); font-size: 12px; color: var(--oxide);
    opacity: 0; visibility: hidden; transition: opacity .15s;
}
.form__consent-notice.is-visible { opacity: 1; visibility: visible; }
.cta-band .form__checkbox, .section--dark .form__checkbox, .popup .form__checkbox { color: var(--muted-on-dark); }
.input.is-error { border-color: var(--oxide); }
.lead-form__submit:disabled { opacity: 0.55; cursor: not-allowed; }

/* Сообщение об ошибке под полем: абсолютом, вёрстку не дёргает */
.lead-form__field { position: relative; }
.field-notice {
    position: absolute; left: 0; top: calc(100% + 5px);
    font-family: var(--font-mono); font-size: 12px; line-height: 1.3; color: var(--oxide);
    white-space: nowrap;
    opacity: 0; visibility: hidden; transition: opacity .15s;
}
.input.is-error + .field-notice { opacity: 1; visibility: visible; }
.lead-form { position: relative; }
.lead-form__status {
    position: absolute; left: 0; top: 100%; margin: 4px 0 0;
    font-family: var(--font-mono); font-size: 13px;
}
.lead-form__status.is-error { color: var(--oxide); }
.lead-form__status.is-success { color: #2e9e46; }
.lead-form.is-busy .lead-form__submit { opacity: .6; pointer-events: none; }

/* ---------- Попапы ---------- */
.popup { position: fixed; inset: 0; z-index: 90; display: flex; align-items: center; justify-content: center; padding: 20px; }
.popup[hidden] { display: none; }
.popup__overlay { position: absolute; inset: 0; background: rgba(16, 19, 21, .7); opacity: 0; transition: opacity .25s ease; }
.popup.is-open .popup__overlay { opacity: 1; }
.popup .popup__window { opacity: 0; transform: translateY(14px); transition: opacity .25s ease, transform .25s ease; }
.popup.is-open .popup__window { opacity: 1; transform: none; }
.popup__window {
    position: relative; width: 100%; max-width: 420px;
    background: var(--steel-950); color: var(--text-on-dark);
    border: 1px solid var(--line-dark); padding: 36px 32px 32px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, .4);
}
.popup__close {
    position: absolute; top: 8px; right: 8px; width: 40px; height: 40px;
    background: none; border: 0; color: var(--muted-on-dark); font-size: 26px; line-height: 1;
}
.popup__close:hover { color: #fff; }
.popup__title { font-family: var(--font-head); font-weight: 600; font-size: 24px; text-transform: uppercase; color: #fff; margin-bottom: 8px; }
.popup__desc { color: var(--muted-on-dark); font-size: 14px; margin-bottom: 20px; }

/* ---------- Таблицы ---------- */
.table-scroll { overflow-x: auto; margin-top: 32px; }
.spec-table { background: var(--paper-raised); border: 1px solid var(--line); min-width: 480px; }
.spec-table td, .spec-table th { padding: 13px 20px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 15px; }
.spec-table th { font-family: var(--font-head); font-weight: 600; text-transform: uppercase; font-size: 14px; letter-spacing: 0.04em; }
.spec-table td + td, .spec-table th + th { border-left: 1px solid var(--line); }
.spec-table tr:last-child td { border-bottom: 0; }
.spec-table .mono { font-size: 14px; }
.spec-table a { color: var(--oxide); text-decoration: none; }
.spec-table a:hover { text-decoration: underline; }
.spec-table--compare td:first-child, .spec-table--compare th:first-child { position: sticky; left: 0; background: var(--paper-raised); min-width: 180px; }
.spec-table__price { color: var(--oxide); font-weight: 600; }
.spec-table--contacts { min-width: 0; }

/* ---------- Товар ---------- */
.product-hero { display: grid; grid-template-columns: 6fr 6fr; gap: 56px; align-items: start; }
.product-hero__media { background: #fff; border: 1px solid var(--line); padding: 32px; position: sticky; top: calc(var(--header-h) + 24px); }
.product-hero__media img { margin: 0 auto; }
.product-hero__title { font-size: clamp(28px, 3.4vw, 44px); margin-bottom: 10px; }
.product-hero__spec { font-size: 13px; color: var(--ink-soft); margin-bottom: 20px; letter-spacing: 0.03em; }
.product-hero__features { list-style: none; margin-bottom: 28px; border-top: 1px solid var(--line); }
.product-hero__features li { padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.product-hero__features li::before { content: '+'; color: var(--oxide); font-family: var(--font-mono); margin-right: 10px; }
.product-hero__prices { display: flex; gap: 32px; margin-bottom: 24px; flex-wrap: wrap; }
.product-hero__price { font-size: 13px; color: var(--ink-soft); }
.product-hero__price span { display: block; font-size: 28px; font-weight: 600; color: var(--oxide); }
.product-hero__price--novat span { color: var(--ink); }
.product-hero__actions { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.product-hero__mail { font-size: 13px; color: var(--ink-soft); text-decoration: none; }
.product-hero__mail:hover { color: var(--oxide); }

.product-notes { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; border-top: 1px solid var(--line); padding-top: 40px; }
.product-notes__title { font-family: var(--font-head); font-weight: 600; font-size: 18px; text-transform: uppercase; margin-bottom: 8px; }
.product-notes__item p { color: var(--ink-soft); font-size: 15px; }
.product-notes__item a { color: var(--oxide); }

/* ---------- Доставка ---------- */
.delivery-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.check-list { list-style: none; margin-top: 20px; border-top: 1px solid var(--line); }
.check-list li { padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 15px; }
.check-list li::before { content: '+'; color: var(--oxide); font-family: var(--font-mono); margin-right: 10px; }
.check-list b { color: var(--ink); }

/* ---------- Контакты ---------- */
.contacts-split { display: grid; grid-template-columns: 5fr 7fr; gap: 40px; align-items: start; }
.contacts-map { min-height: 440px; background: var(--steel-900); border: 1px solid var(--line); }
.contacts-map > * { height: 100%; }

/* ---------- Статьи ---------- */
.article-list { border-top: 1px solid var(--line); }
.article-item { border-bottom: 1px solid var(--line); }
.article-item__link { display: flex; gap: 32px; align-items: baseline; padding: 26px 0; text-decoration: none; }
.article-item__date { font-size: 13px; color: var(--ink-soft); white-space: nowrap; }
.article-item__body { flex: 1; }
.article-item__title { font-size: 22px; transition: color .15s; }
.article-item:hover .article-item__title { color: var(--oxide); }
.article-item__excerpt { color: var(--ink-soft); font-size: 15px; margin-top: 6px; }
.article-item__arrow { font-family: var(--font-mono); color: var(--ink-soft); }
.article-item:hover .article-item__arrow { color: var(--oxide); }

.article-narrow { max-width: 820px; }
/* Детальная статья — на всю ширину контейнера */
.section--article .wysiwyg { max-width: none; }
.section--article .wysiwyg p, .section--article .wysiwyg ul, .section--article .wysiwyg ol { max-width: 90ch; }
.article-head { margin-bottom: 32px; }
.article-head__date { font-size: 13px; color: var(--ink-soft); display: block; margin-bottom: 12px; }
.article-head__title { font-size: clamp(28px, 3.4vw, 42px); }

/* ---------- Wysiwyg ---------- */
.wysiwyg { font-size: 16px; }
.wysiwyg h2 { font-size: 26px; margin: 1.6em 0 .6em; }
.wysiwyg h3 { font-size: 20px; margin: 1.4em 0 .5em; }
.wysiwyg ul, .wysiwyg ol { padding-left: 22px; margin-bottom: 1em; }
.wysiwyg li { margin-bottom: .4em; }
.wysiwyg a { color: var(--oxide); }
.wysiwyg img { border: 1px solid var(--line); }
.wysiwyg blockquote { margin: 1.4em 0; padding: 4px 0 4px 20px; border-left: 2px solid var(--oxide); color: var(--ink-soft); }

/* ---------- 404 ---------- */
.section--404 { padding: 120px 0; }
.error-block { text-align: center; }
.error-block__code { font-size: 80px; color: var(--oxide); letter-spacing: 0.1em; }
.error-block__title { font-size: 32px; margin: 8px 0; }
.error-block__text { color: var(--ink-soft); margin-bottom: 28px; }
.error-block__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Футер ---------- */
.site-footer { background: var(--steel-950); color: var(--text-on-dark); padding: 56px 0 0; border-top: 1px solid var(--line-dark); }
.site-footer__grid { display: grid; grid-template-columns: 1.3fr 1fr 1.2fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.site-footer__title { font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted-on-dark); margin-bottom: 16px; }
.site-footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.site-footer ul a { color: var(--text-on-dark); text-decoration: none; font-size: 14px; }
.site-footer ul a:hover { color: #fff; }
.site-footer__brand { display: flex; align-items: center; gap: 14px; }
.site-footer__brand .site-logo__emblem { width: 56px; height: 56px; }
.site-footer__note { color: var(--muted-on-dark); font-size: 13px; margin-top: 16px; max-width: 280px; }
.site-footer__contacts { display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.site-footer__contacts a { color: var(--text-on-dark); text-decoration: none; }
.site-footer__contacts a:hover { color: var(--signal); }
.site-footer__contacts span { color: var(--muted-on-dark); font-size: 13px; }
.site-footer__bottom {
    display: flex; gap: 20px; justify-content: space-between; flex-wrap: wrap;
    padding: 20px 0; border-top: 1px solid var(--line-dark);
    font-size: 12px; color: var(--muted-on-dark);
}
.site-footer__bottom a { color: var(--muted-on-dark); }
.site-footer__bottom a:hover { color: #fff; }

/* ---------- Появление по скроллу ---------- */
@media (prefers-reduced-motion: no-preference) {
    .reveal { opacity: 0; transform: translateY(12px); transition: opacity .3s, transform .3s; }
    .reveal.is-visible { opacity: 1; transform: none; }
}

/* =====================================================================
   Адаптив
   ===================================================================== */
@media (max-width: 1080px) {
    .site-nav__list { gap: 18px; }
    .site-header__phone { display: none; }
}

@media (max-width: 960px) {
    .section { padding: 56px 0; }
    .hero__inner { grid-template-columns: 1fr; gap: 40px; padding-top: 40px; }
    .hero__media { max-width: 460px; }
    .about-teaser, .cta-band__inner, .delivery-cols, .product-notes,
    .contacts-split, .page-head--split { grid-template-columns: 1fr; gap: 32px; }
    .product-hero { grid-template-columns: 1fr; }
    .product-hero__media { position: static; }
    .adv-grid { grid-template-columns: 1fr 1fr; }
    .steps { grid-template-columns: 1fr 1fr; row-gap: 40px; }
    .steps::before { display: none; }
    .product-grid--row { grid-template-columns: 1fr 1fr; }

    /* Мобильное меню-шторка */
    .burger { display: block; margin-left: auto; }
    .site-header__actions { margin-left: auto; }
    .site-header__cta { display: none; }
    .site-nav {
        position: fixed; inset: var(--header-h) 0 0 0; z-index: 49;
        background: var(--steel-950); padding: 32px var(--gutter);
        display: none; overflow-y: auto; margin: 0;
    }
    .site-nav.is-open { display: block; }
    .site-nav__list { flex-direction: column; gap: 4px; }
    .site-nav__list a { display: block; padding: 12px 0; font-size: 20px; font-family: var(--font-head); text-transform: uppercase; border-bottom: 1px solid var(--line-dark); }
    .site-nav__contacts { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; align-items: flex-start; }
    .site-nav__phone { color: #fff; text-decoration: none; font-size: 18px; }
}

@media (max-width: 640px) {
    :root { --header-h: 60px; }
    .section { padding: 44px 0; }
    .product-grid, .product-grid--row, .adv-grid, .steps { grid-template-columns: 1fr; }
    .hero__title { font-size: clamp(30px, 8vw, 38px); }
    .hero__chips li { padding-right: 16px; margin-right: 16px; }
    .lead-form--inline .lead-form__fields { flex-direction: column; }
    .section__head { flex-direction: column; gap: 8px; }
    .article-item__link { flex-direction: column; gap: 8px; }
    .cta-band__form { padding: 20px; }
    .site-footer__grid { grid-template-columns: 1fr; gap: 32px; }
    .contacts-map { min-height: 320px; }
    .hero__dim--h { display: none; }
}

/* Линия-прогресс переходов (Barba + GSAP): тонкая оксидная полоса под шапкой */
.page-progress {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    height: 2px;
    z-index: 140;
    background: var(--oxide);
    transform: scaleX(0);
    transform-origin: left center;
    opacity: 0;
    pointer-events: none;
    will-change: transform, opacity;
}
body.is-transitioning { overflow-x: hidden; }

/* ---------- Кастомный скролл ---------- */
/* Жёлоб зарезервирован всегда: страница не прыгает, когда скролл
   исчезает (модалки, переходы, короткие страницы) */
html { scrollbar-gutter: stable; }

/* Firefox */
html { scrollbar-width: thin; scrollbar-color: var(--steel-700) var(--paper); }

/* WebKit */
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--paper); border-left: 1px solid var(--line); }
::-webkit-scrollbar-thumb {
    background: var(--steel-700);
    border: 3px solid var(--paper);
    border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover { background: var(--oxide); }
::-webkit-scrollbar-corner { background: var(--paper); }

/* Внутренние скролл-области (таблицы) — тоньше */
.table-scroll::-webkit-scrollbar { height: 8px; }
.table-scroll::-webkit-scrollbar-thumb { border-width: 2px; }