/* ==========================================================================
   Инкубатор 2.10 — стили сайта
   --------------------------------------------------------------------------
   1. Переменные и база
   2. Общие компоненты (контейнер, секции, кнопки, мелкие элементы)
   3. Шапка и навигация
   4. Главная: первый экран → контакты
   5. Внутренние страницы (отзывы, инструкции, вопросы и ответы)
   6. Подвал
   7. Адаптив
   8. Анимация появления, печать
   ========================================================================== */

/* ---------- 1. Переменные и база ---------- */

:root {
    --bg: #f3f3f1;
    --surface: #ffffff;
    --sunken: #e9e8e4;

    --ink: #14161a;
    --ink-2: #454a53;
    --ink-3: #676d77;
    --line: #d8d8d3;
    --line-soft: #e6e6e2;

    --dark: #14161a;
    --dark-2: #1d2025;
    --dark-3: #2a2e35;
    --dark-line: rgba(255, 255, 255, 0.12);
    --on-dark: #f3f3f1;
    --on-dark-2: #a6abb3;
    --on-dark-3: #cfd2d6;

    --accent: #ff5a1f;
    --accent-hover: #ff7846;
    --accent-deep: #c2410c;
    --band-a: #ff5a1f;
    --band-b: #4cc3e6;
    --titan: #b4ab9c;

    --radius-s: 10px;
    --radius: 16px;
    --radius-l: 28px;

    --gutter: clamp(20px, 4vw, 40px);
    --container: 1280px;
    --header-h: 68px;
    --section-y: clamp(56px, 7.5vw, 104px);

    --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif;
    --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, "Cascadia Mono", "Segoe UI Mono", "Roboto Mono", Consolas, "Liberation Mono", monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 20px);
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    counter-reset: section;
}

h1, h2, h3, p, ul, ol, dl, dd, figure, blockquote {
    margin: 0;
}

h1, h2, h3 {
    font-weight: 700;
    text-wrap: balance;
}

ul, ol {
    padding: 0;
    list-style: none;
}

img, svg, picture {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
}

address {
    font-style: normal;
}

table {
    width: 100%;
    border-collapse: collapse;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

::selection {
    background: var(--accent);
    color: var(--ink);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    left: 12px;
    top: -60px;
    z-index: 100;
    padding: 10px 16px;
    border-radius: var(--radius-s);
    background: var(--accent);
    color: var(--ink);
    font-weight: 600;
    transition: top 0.2s;
}

.skip-link:focus {
    top: 12px;
}

.icon {
    flex: none;
}

.nowrap {
    white-space: nowrap;
}

/* ---------- 2. Общие компоненты ---------- */

.container {
    width: min(100% - 2 * var(--gutter), var(--container));
    margin-inline: auto;
}

.section {
    padding-block: var(--section-y);
}

.section--surface {
    background: var(--surface);
}

.section--module {
    padding-block: 0;
}

/* Тёмный модуль после белой секции и перед подвалом отделяется отступом */
.section--surface + .section--module {
    padding-top: var(--section-y);
}

.section--module-last {
    padding-bottom: var(--section-y);
}

.section--compact {
    padding-block: clamp(56px, 7vw, 96px);
}

.section--figures {
    padding-block: clamp(40px, 6vw, 80px) 0;
}

.section--contacts {
    padding-bottom: clamp(48px, 6vw, 80px);
}

/* Заголовок секции */

.section__head {
    margin-bottom: clamp(32px, 5vw, 64px);
}

.section__head--split {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 20px clamp(24px, 5vw, 80px);
    align-items: end;
}

.section__head--row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px 32px;
}

.section__head--inline {
    margin-bottom: clamp(20px, 3vw, 32px);
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 0.7em;
    margin-bottom: 1.1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
    counter-increment: section;
}

.eyebrow::before {
    content: counter(section, decimal-leading-zero);
    color: var(--accent-deep);
}

.eyebrow::after {
    content: "";
    order: -1;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: var(--accent);
}

.section__title {
    font-size: clamp(1.9rem, 1.15rem + 2.7vw, 3.25rem);
    line-height: 1.05;
    letter-spacing: -0.035em;
}

.section__title--sm {
    font-size: clamp(1.375rem, 1.1rem + 1vw, 1.75rem);
    letter-spacing: -0.025em;
}

.section__lead {
    max-width: 46ch;
    font-size: clamp(1.0625rem, 1rem + 0.35vw, 1.25rem);
    line-height: 1.5;
    color: var(--ink-2);
    text-wrap: pretty;
}

.section__title + .section__lead {
    margin-top: 18px;
}

/* Кнопки */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6em;
    min-height: 48px;
    padding: 0.7em 1.25em;
    border: 1px solid transparent;
    border-radius: 12px;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    transition: background-color 0.2s, border-color 0.2s, color 0.2s, transform 0.15s;
}

.btn:active {
    transform: translateY(1px);
}

.btn--primary {
    background: var(--accent);
    color: var(--ink);
}

.btn--primary:hover {
    background: var(--accent-hover);
}

.btn--dark {
    background: var(--ink);
    color: #fff;
}

.btn--dark:hover {
    background: var(--dark-3);
}

.btn--outline-light {
    border-color: rgba(255, 255, 255, 0.28);
    color: var(--on-dark);
}

.btn--outline-light:hover {
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.07);
}

.btn--lg {
    min-height: 56px;
    padding: 0.8em 1.5em;
    font-size: 1rem;
}

.btn--sm {
    min-height: 42px;
    padding: 0.5em 1em;
    border-radius: 10px;
    font-size: 0.875rem;
}

.btn--block {
    width: 100%;
}

.btn__label {
    text-wrap: balance;
}

.btn__email {
    white-space: nowrap;
}

/* Текстовая ссылка со стрелкой */

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    font-weight: 600;
    font-size: 0.9375rem;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 2px;
    transition: gap 0.2s, color 0.2s;
}

.link-arrow:hover {
    gap: 0.8em;
}

/* Кнопка «скопировать адрес» */

.copy {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    justify-self: start;
    padding: 6px 0;
    font-size: 0.875rem;
    color: var(--on-dark-2);
    transition: color 0.2s;
}

.copy:hover,
.copy.is-done {
    color: #fff;
}

.copy--dark {
    color: var(--ink-3);
}

.copy--dark:hover,
.copy--dark.is-done {
    color: var(--ink);
}

html:not(.js) .copy {
    display: none;
}

/* Метка, сноска */

.tag {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-deep);
}

.fineprint {
    margin-top: 20px;
    max-width: 72ch;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--ink-3);
}

/* Список с чёрточками */

.ticks {
    display: grid;
    gap: 10px;
}

.ticks li {
    position: relative;
    padding-left: 26px;
    font-size: 0.9688rem;
    line-height: 1.45;
}

.ticks li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.66em;
    width: 14px;
    height: 2px;
    background: var(--accent);
}

/* Фотография в рамке */

.shot {
    overflow: hidden;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-l);
    background: var(--surface);
}

.shot img {
    width: 100%;
}

.shot figcaption {
    padding: 14px 20px 16px;
    border-top: 1px solid var(--line-soft);
    font-size: 0.875rem;
    line-height: 1.45;
    color: var(--ink-2);
}

.shot figcaption b {
    color: var(--ink);
}

/* Тёмный модуль — крупный блок со скруглением */

.module {
    padding: clamp(28px, 5vw, 72px);
    border-radius: var(--radius-l);
}

.module--dark {
    background: var(--dark);
    color: var(--on-dark);
}

.module--dark .eyebrow {
    color: var(--on-dark-2);
}

.module--dark .eyebrow::before {
    color: var(--accent);
}

.module--dark .section__lead {
    color: var(--on-dark-3);
}

/* Звёзды оценки */

.stars {
    font-size: 1rem;
    line-height: 1;
    letter-spacing: 2px;
    white-space: nowrap;
}

.stars__on {
    color: var(--accent);
}

.stars__off {
    color: #c6c6c0;
}

/* Средняя оценка: звёзды закрашены на долю --fill */
.stars--average {
    background: linear-gradient(90deg, var(--accent) var(--fill, 100%), #c6c6c0 var(--fill, 100%));
    -webkit-background-clip: text;
    background-clip: text;
    font-size: 1.125rem;
    letter-spacing: 0;
    color: transparent;
}

/* ---------- 3. Шапка и навигация ---------- */

.topbar {
    background: var(--dark);
    color: var(--on-dark);
    font-size: 0.8125rem;
}

.topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 36px;
}

.topbar__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    opacity: 0.88;
    transition: opacity 0.2s;
}

.topbar__link:hover {
    opacity: 1;
}

.topbar__link .icon {
    color: var(--accent);
}

.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(243, 243, 241, 0.88);
    -webkit-backdrop-filter: saturate(1.6) blur(14px);
    backdrop-filter: saturate(1.6) blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.header.is-stuck {
    border-bottom-color: var(--line);
}

.header__inner {
    display: flex;
    align-items: center;
    gap: 20px;
    min-height: var(--header-h);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.logo__mark {
    border-radius: 7px;
}

.logo__version {
    font-family: var(--font-mono);
    font-size: 0.85em;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--ink-3);
}

.logo--light {
    color: #fff;
}

.logo--light .logo__version {
    color: var(--on-dark-2);
}

.logo--light .logo__mark rect:first-child {
    fill: var(--dark-3);
}

.nav {
    margin-inline: auto;
}

.nav__list {
    display: flex;
    gap: 2px;
}

.nav__link {
    display: block;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--ink-2);
    white-space: nowrap;
    transition: background-color 0.2s, color 0.2s;
}

.nav__link:hover,
.nav__link.is-active,
.nav__link[aria-current="page"] {
    color: var(--ink);
    background: rgba(20, 22, 26, 0.06);
}

.nav__extra {
    display: none;
}

.header__actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.burger {
    display: none;
    position: relative;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line);
    border-radius: 10px;
}

.burger__line {
    position: absolute;
    left: 12px;
    right: 12px;
    height: 2px;
    border-radius: 1px;
    background: currentColor;
    transition: transform 0.25s, top 0.25s;
}

.burger__line:nth-child(1) {
    top: 17px;
}

.burger__line:nth-child(2) {
    top: 25px;
}

.is-menu-open .burger__line:nth-child(1) {
    top: 21px;
    transform: rotate(45deg);
}

.is-menu-open .burger__line:nth-child(2) {
    top: 21px;
    transform: rotate(-45deg);
}

/* ---------- 4. Главная ---------- */

/* Первый экран */

.hero {
    padding-top: clamp(8px, 1.4vw, 16px);
}

.hero__card {
    display: grid;
    grid-template-columns: minmax(0, 46fr) minmax(0, 54fr);
    overflow: hidden;
    border-radius: var(--radius-l);
    background: var(--dark);
    color: var(--on-dark);
}

.hero__body {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(28px, 4vw, 56px);
    isolation: isolate;
}

/* Едва заметная сетка — отсылка к чертежу */
.hero__body::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px) 0 0 / 100% 48px,
        linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px) 0 0 / 48px 100%;
    -webkit-mask-image: linear-gradient(200deg, #000, transparent 62%);
    mask-image: linear-gradient(200deg, #000, transparent 62%);
}

.hero__kicker {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--on-dark-2);
}

.hero__dot {
    flex: none;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(255, 90, 31, 0.22);
}

.hero__title {
    margin-top: clamp(14px, 1.6vw, 20px);
    font-size: clamp(3rem, 1rem + 5vw, 5.5rem);
    line-height: 0.92;
    letter-spacing: -0.045em;
    color: #fff;
}

.hero__version {
    display: block;
    color: var(--accent);
}

.hero__lead {
    max-width: 34em;
    margin-top: clamp(18px, 2vw, 24px);
    font-size: clamp(1.0625rem, 0.8rem + 0.4vw, 1.1875rem);
    line-height: 1.5;
    color: var(--on-dark-3);
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px 24px;
    margin-top: clamp(22px, 2.6vw, 30px);
}

.hero__note {
    margin-top: 16px;
    font-size: 0.8125rem;
    color: var(--on-dark-2);
}

/* Фотография — плитка внутри тёмной карточки */
.hero__media {
    position: relative;
    margin: 12px 12px 12px 0;
    overflow: hidden;
    border-radius: 18px;
    background: #eef0f2;
}

/* Снимок заполняет плитку целиком; смещение влево сохраняет в кадре антенный блок */
.hero__media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 22% 50%;
}

.hero__caption {
    position: absolute;
    left: 14px;
    bottom: 14px;
    max-width: calc(100% - 28px);
    padding: 5px 10px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.82);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    line-height: 1.4;
    color: var(--ink-2);
}

.hero__stats {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--dark-line);
    background: var(--dark-2);
}

.stat {
    display: flex;
    flex-direction: column-reverse;
    justify-content: flex-end;
    gap: 5px;
    padding: clamp(16px, 1.6vw, 22px) clamp(18px, 3vw, 40px);
}

.stat + .stat {
    border-left: 1px solid var(--dark-line);
}

.stat__value {
    font-size: clamp(1.5rem, 1rem + 1.5vw, 2.25rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.035em;
    color: #fff;
    white-space: nowrap;
}

.stat__label {
    font-size: 0.8125rem;
    line-height: 1.35;
    color: var(--on-dark-2);
}

/* Ключевые характеристики */

.figures {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--ink);
}

.figure {
    padding: clamp(24px, 3vw, 40px) clamp(16px, 2.4vw, 32px) clamp(24px, 3vw, 40px) 0;
    border-bottom: 1px solid var(--line);
}

.figure:not(:nth-child(3n + 1)) {
    padding-left: clamp(16px, 2.4vw, 32px);
    border-left: 1px solid var(--line);
}

.figure__value {
    font-size: clamp(2.5rem, 1.3rem + 3.7vw, 4.5rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.045em;
    white-space: nowrap;
}

.figure__unit {
    margin-left: 0.05em;
    font-size: 0.36em;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--ink-3);
}

.figure__label {
    margin-top: 16px;
    font-weight: 600;
    line-height: 1.3;
}

.figure__note {
    max-width: 34ch;
    margin-top: 4px;
    font-size: 0.875rem;
    line-height: 1.45;
    color: var(--ink-3);
}

/* Что такое Инкубатор 2.10 */

.topics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(32px, 5vw, 80px);
    border-top: 1px solid var(--ink);
}

.topic {
    padding: clamp(22px, 2.6vw, 32px) 0;
    border-bottom: 1px solid var(--line);
}

.topic__title {
    margin-bottom: 10px;
    font-size: 1.1875rem;
    line-height: 1.25;
    letter-spacing: -0.015em;
}

.topic p {
    font-size: 1rem;
    color: var(--ink-2);
    text-wrap: pretty;
}

.units {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 28px);
    margin-top: clamp(40px, 6vw, 72px);
}

.unit {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-l);
    background: var(--surface);
}

.unit__media img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.unit__body {
    padding: clamp(22px, 3vw, 36px);
}

.unit__title {
    margin-top: 8px;
    font-size: clamp(1.4rem, 1.1rem + 1vw, 1.875rem);
    line-height: 1.1;
    letter-spacing: -0.025em;
}

.unit__text {
    margin-top: 10px;
    color: var(--ink-2);
}

.unit .ticks {
    margin-top: 18px;
}

.callout {
    display: flex;
    align-items: center;
    gap: clamp(16px, 3vw, 40px);
    margin-top: clamp(16px, 2vw, 28px);
    padding: clamp(20px, 2.6vw, 30px) clamp(22px, 3vw, 36px);
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
}

.callout__value {
    font-size: clamp(1.75rem, 1.2rem + 2vw, 2.75rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.04em;
    white-space: nowrap;
}

.callout__text {
    max-width: 64ch;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--ink-2);
}

/* Рабочие диапазоны */

.spectrum {
    position: relative;
    margin-bottom: clamp(28px, 4vw, 48px);
    padding-top: 44px;
}

.spectrum__track {
    position: relative;
    height: 14px;
    border-radius: 4px;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.2) 1px, transparent 1px) 0 0 / 2.5% 100%,
        var(--dark-3);
}

.spectrum__band {
    position: absolute;
    top: -7px;
    bottom: -7px;
    min-width: 8px;
    border-radius: 4px;
}

.spectrum__band--a {
    background: var(--band-a);
}

.spectrum__band--b {
    background: var(--band-b);
}

.spectrum__label {
    position: absolute;
    bottom: calc(100% + 12px);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
    color: #fff;
}

.spectrum__band--a .spectrum__label {
    left: 0;
}

.spectrum__band--b .spectrum__label {
    right: 0;
}

.spectrum__scale {
    position: relative;
    height: 20px;
    margin-top: 18px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--on-dark-2);
}

.spectrum__scale span {
    position: absolute;
    transform: translateX(-50%);
}

.spectrum__scale span:first-child {
    transform: none;
}

.spectrum__scale span:last-child {
    transform: translateX(-100%);
}

.bands {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(14px, 2vw, 24px);
}

.band {
    --band: var(--band-a);
    display: flex;
    flex-direction: column;
    gap: clamp(18px, 2vw, 24px);
    padding: clamp(22px, 3vw, 36px);
    border: 1px solid var(--dark-line);
    border-radius: var(--radius);
    background: var(--dark-2);
}

.band--b {
    --band: var(--band-b);
}

.band__label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--on-dark-2);
}

.band__swatch {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    background: var(--band);
}

.band__range {
    margin-top: 12px;
    font-size: clamp(2rem, 1.2rem + 2.7vw, 3.25rem);
    line-height: 1;
    letter-spacing: -0.04em;
    white-space: nowrap;
    color: #fff;
}

.band__role {
    margin-top: 12px;
    font-size: 0.9688rem;
    line-height: 1.5;
    color: var(--on-dark-3);
}

.band__rows {
    border-top: 1px solid var(--dark-line);
}

.band__rows > div {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--dark-line);
    font-size: 0.9375rem;
}

.band__rows dt {
    color: var(--on-dark-2);
}

.band__rows dd {
    font-family: var(--font-mono);
    font-weight: 500;
    white-space: nowrap;
}

.band__beams {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.beam {
    width: 100%;
    max-width: 210px;
    margin-inline: auto;
}

.beam__grid {
    fill: none;
    stroke: rgba(255, 255, 255, 0.18);
    stroke-width: 1;
    stroke-dasharray: 2 3;
}

.beam__sector {
    fill: var(--band);
    fill-opacity: 0.24;
    stroke: var(--band);
    stroke-width: 1.5;
    stroke-linejoin: round;
}

.beam__origin {
    fill: var(--band);
}

.band__beam figcaption {
    margin-top: 10px;
    font-size: 0.8125rem;
    text-align: center;
    color: var(--on-dark-2);
}

.band__beam figcaption b {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 600;
    color: #fff;
}

.band__note {
    margin-top: auto;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--on-dark-2);
}

.bands__common {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 40px);
    margin-top: clamp(24px, 3vw, 40px);
}

.bands__common > div {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 14px 0;
    border-top: 1px solid var(--dark-line);
}

.bands__common dt {
    font-size: 0.8125rem;
    color: var(--on-dark-2);
}

.bands__common dd {
    font-weight: 600;
}

/* Как устроен комплекс */

.arch {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(190px, 0.46fr) minmax(0, 1fr);
    align-items: stretch;
}

.arch__zone {
    position: relative;
    padding: 34px clamp(14px, 1.6vw, 22px) clamp(14px, 1.6vw, 22px);
    border: 1px dashed #b9b9b3;
    border-radius: var(--radius-l);
}

.arch__zone-label {
    position: absolute;
    top: -10px;
    left: 22px;
    padding: 0 10px;
    background: var(--bg);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    letter-spacing: 0.08em;
    line-height: 20px;
    text-transform: uppercase;
    color: var(--ink-3);
}

.arch__row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: stretch;
    height: 100%;
}

.arch__node {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
    overflow-wrap: break-word;
    -webkit-hyphens: auto;
    hyphens: auto;
    padding: clamp(14px, 1.6vw, 20px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
}

.arch__node--plain {
    background: transparent;
}

.arch__node--accent {
    border-color: var(--ink);
    background: var(--ink);
    color: #fff;
}

.arch__icon {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    margin-bottom: 10px;
    border-radius: 12px;
    background: var(--bg);
}

.arch__node--plain .arch__icon {
    background: var(--sunken);
}

.arch__node--accent .arch__icon {
    background: var(--dark-3);
    color: var(--accent);
}

.arch__name {
    font-size: 1.0625rem;
    line-height: 1.2;
    letter-spacing: -0.015em;
}

.arch__desc,
.arch__facts {
    font-size: 0.875rem;
    line-height: 1.4;
    color: var(--ink-2);
}

.arch__node--accent .arch__facts {
    color: var(--on-dark-3);
}

.arch__facts li + li {
    margin-top: 2px;
}

.arch__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-width: 84px;
    padding-inline: 8px;
}

.arch__link--inner {
    min-width: 28px;
    padding-inline: 0;
}

/* Двойная линия — два кабеля по числу каналов */
.arch__wire {
    width: 100%;
    height: 9px;
    border-block: 2px solid var(--ink);
}

.arch__cable {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.4;
    text-align: center;
    color: var(--ink-3);
}

.arch__cable b {
    display: block;
    font-size: 0.875rem;
    color: var(--ink);
}

.arch__link--long {
    padding-inline: 6px;
}

.arch__segments {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
    width: 100%;
}

.arch__segments span {
    display: grid;
    place-items: center;
    height: 32px;
    border-radius: 7px;
    background: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    color: #fff;
}

.arch__power {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.arch__power li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius);
    background: var(--sunken);
    font-size: 0.9375rem;
    line-height: 1.45;
    color: var(--ink-2);
}

.arch__power .icon {
    margin-top: 2px;
    color: var(--accent-deep);
}

.arch__power b {
    font-weight: 600;
    color: var(--ink);
}

.arch-benefits {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(28px, 5vw, 80px);
    align-items: center;
    margin-top: clamp(48px, 7vw, 96px);
}

.benefits {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(28px, 3.4vw, 48px) clamp(20px, 3vw, 40px);
}

.benefit__icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    margin-bottom: 16px;
    border-radius: 12px;
    background: var(--ink);
    color: var(--accent);
}

.benefit__title {
    margin-bottom: 6px;
    font-size: 1.125rem;
    line-height: 1.25;
    letter-spacing: -0.015em;
}

.benefit p {
    font-size: 0.9688rem;
    line-height: 1.5;
    color: var(--ink-2);
}

/* Преимущества */

.advantages {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--ink);
    border-left: 1px solid var(--line);
    counter-reset: advantage;
}

.advantage {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: clamp(220px, 20vw, 280px);
    padding: clamp(20px, 2.2vw, 30px);
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.advantage::before {
    counter-increment: advantage;
    content: counter(advantage, decimal-leading-zero);
    margin-bottom: auto;
    padding-bottom: 28px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-deep);
}

.advantage__title {
    font-size: 1.1875rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.advantage p {
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--ink-2);
}

.advantage--cta {
    border-color: var(--ink);
    background: var(--ink);
    color: #fff;
}

.advantage--cta::before {
    counter-increment: none;
    content: "→";
    font-size: 1.25rem;
    line-height: 1;
    color: var(--accent);
}

.advantage--cta p {
    color: var(--on-dark-3);
}

.advantage--cta .link-arrow {
    align-self: flex-start;
    margin-top: 6px;
}

/* Технические характеристики */

.specs__bar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px 24px;
    margin-bottom: clamp(20px, 2.4vw, 32px);
}

.specs__index {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.specs__index a {
    padding: 7px 14px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    font-size: 0.875rem;
    line-height: 1.3;
    color: var(--ink-2);
    transition: border-color 0.2s, color 0.2s;
}

.specs__index a:hover {
    border-color: var(--ink);
    color: var(--ink);
}

.specs__toggle {
    flex: none;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    white-space: nowrap;
    color: var(--ink-3);
    transition: border-color 0.2s, color 0.2s;
}

.specs__toggle:hover {
    border-color: var(--ink);
    color: var(--ink);
}

html:not(.js) .specs__toggle {
    display: none;
}

.specs__groups {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 clamp(32px, 5vw, 80px);
    align-items: start;
}

.drawing {
    max-width: 420px;
    margin: 4px 0 24px;
    padding: 20px 20px 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
}

.drawing svg {
    width: 100%;
    height: auto;
    overflow: visible;
}

.drawing__body rect {
    fill: var(--bg);
    stroke: var(--ink);
    stroke-width: 1.5;
}

.drawing__ribs path {
    fill: none;
    stroke: var(--line);
    stroke-width: 1;
}

.drawing__dims path {
    fill: none;
    stroke: var(--accent-deep);
    stroke-width: 1;
}

.drawing__text text {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    fill: var(--ink-2);
}

.drawing figcaption {
    margin-top: 12px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-3);
}

.spec-group {
    border-top: 1px solid var(--ink);
    scroll-margin-top: calc(var(--header-h) + 16px);
}

.spec-group__summary {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 0;
    list-style: none;
    cursor: pointer;
}

.spec-group__summary::-webkit-details-marker {
    display: none;
}

.spec-group__title {
    font-size: 1.1875rem;
    line-height: 1.25;
    letter-spacing: -0.015em;
}

.spec-group__count {
    padding: 1px 9px;
    border: 1px solid var(--line);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-3);
}

/* Значок «плюс / минус» для раскрывающихся блоков */
.spec-group__icon,
.accordion__icon {
    position: relative;
    flex: none;
    width: 28px;
    height: 28px;
    margin-left: auto;
    border: 1px solid var(--line);
    border-radius: 50%;
    transition: background-color 0.2s, border-color 0.2s;
}

.spec-group__icon::before,
.spec-group__icon::after,
.accordion__icon::before,
.accordion__icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 10px;
    height: 1.5px;
    margin: -0.75px 0 0 -5px;
    background: currentColor;
    transition: transform 0.25s;
}

.spec-group__icon::after,
.accordion__icon::after {
    transform: rotate(90deg);
}

details[open] > summary .spec-group__icon::after,
details[open] > summary .accordion__icon::after {
    transform: rotate(0deg);
}

summary:hover .spec-group__icon,
summary:hover .accordion__icon {
    border-color: var(--ink);
    background: var(--ink);
    color: #fff;
}

.spec-table {
    margin-bottom: 28px;
}

.spec-table tr {
    border-top: 1px solid var(--line);
}

.spec-table th,
.spec-table td {
    padding: 12px 0;
    vertical-align: top;
    text-align: left;
    font-size: 0.9688rem;
    line-height: 1.45;
}

.spec-table th {
    width: 44%;
    padding-right: 20px;
    font-weight: 400;
    color: var(--ink-2);
}

.spec-table__value {
    display: block;
    font-weight: 600;
}

.spec-table__note {
    display: block;
    margin-top: 2px;
    font-size: 0.8125rem;
    color: var(--ink-3);
}

.specs__note {
    max-width: 72ch;
    margin-top: 20px;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--ink-3);
}

.specs__note a,
.power__note a,
.kit__photo figcaption a,
.fineprint a,
.prose a {
    color: inherit;
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

/* Комплектация */

.kit {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(24px, 4vw, 64px);
    align-items: start;
}

.kit__photo {
    position: sticky;
    top: calc(var(--header-h) + 24px);
}

.kit__stage {
    position: relative;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-l);
    background: #f6f7f7;
}

.kit__stage img {
    width: 100%;
    border-radius: var(--radius-l);
}

.kit__photo figcaption {
    margin-top: 14px;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--ink-3);
}

.hotspot {
    position: absolute;
    z-index: 1;
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    margin: -15px 0 0 -15px;
    border-radius: 50%;
    background: var(--ink);
    box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.8), 0 6px 14px rgba(20, 22, 26, 0.28);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
    transition: background-color 0.2s, color 0.2s, transform 0.2s;
}

.hotspot::after {
    content: attr(data-caption);
    position: absolute;
    left: 50%;
    bottom: calc(100% + 12px);
    padding: 6px 10px;
    border-radius: 8px;
    background: var(--ink);
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1.3;
    white-space: nowrap;
    color: #fff;
    opacity: 0;
    transform: translate(-50%, 4px);
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
}

.hotspot:hover,
.hotspot:focus-visible,
.hotspot.is-active {
    z-index: 2;
    background: var(--accent);
    color: var(--ink);
}

.hotspot:hover::after,
.hotspot:focus-visible::after,
.hotspot.is-active::after {
    opacity: 1;
    transform: translate(-50%, 0);
}

/* Подписи у краёв снимка выравниваются по метке, чтобы не выходить за кадр */
.hotspot--start::after {
    left: -4px;
    transform: translate(0, 4px);
}

.hotspot--end::after {
    left: auto;
    right: -4px;
    transform: translate(0, 4px);
}

.hotspot--start:hover::after,
.hotspot--start:focus-visible::after,
.hotspot--start.is-active::after,
.hotspot--end:hover::after,
.hotspot--end:focus-visible::after,
.hotspot--end.is-active::after {
    transform: none;
}

.kit-table thead th {
    padding: 0 12px 12px 0;
    border-bottom: 1px solid var(--ink);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-align: left;
    text-transform: uppercase;
    color: var(--ink-3);
}

.kit-table thead th:last-child {
    padding-right: 0;
    text-align: right;
}

.kit-table tbody tr {
    border-bottom: 1px solid var(--line);
    transition: background-color 0.15s;
}

.kit-table tbody th,
.kit-table tbody td {
    padding: 14px 12px 14px 0;
    vertical-align: top;
    text-align: left;
    font-weight: 400;
    line-height: 1.4;
}

.kit-table__n {
    width: 46px;
}

.kit-table__n span {
    display: grid;
    place-items: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--line);
    border-radius: 50%;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--ink-3);
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.kit-table tr.is-on-photo {
    cursor: pointer;
}

.kit-table tr.is-on-photo .kit-table__n span {
    border-color: var(--ink);
    background: var(--ink);
    color: #fff;
}

.kit-table tr.is-active {
    background: rgba(255, 90, 31, 0.09);
}

.kit-table tr.is-active .kit-table__n span {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--ink);
}

.kit-table__name {
    display: block;
    font-weight: 600;
}

.kit-table__note {
    display: block;
    font-size: 0.875rem;
    color: var(--ink-3);
}

.kit-table tbody .kit-table__qty {
    padding-right: 0;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    text-align: right;
    white-space: nowrap;
}

.shots {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 28px);
    margin-top: clamp(32px, 5vw, 64px);
}

/* Кабели и выносное размещение */

.cables {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 4vw, 64px);
    align-items: center;
}

.cable-list {
    border-top: 1px solid var(--ink);
}

.cable-list li {
    display: grid;
    grid-template-columns: minmax(7.5rem, 9.5rem) minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
}

.cable-list__value {
    font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.035em;
    white-space: nowrap;
}

.cable-list__text {
    font-size: 0.9375rem;
    line-height: 1.45;
    color: var(--ink-2);
}

.cable-list__text b {
    display: block;
    font-weight: 600;
    color: var(--ink);
}

.reach {
    margin-top: clamp(24px, 3vw, 40px);
    padding: clamp(22px, 3vw, 40px);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-l);
    background: var(--surface);
}

.reach__row {
    display: grid;
    grid-template-columns: 13rem minmax(0, 1fr) 4.5rem;
    gap: 16px;
    align-items: center;
    padding: 8px 0;
}

.reach__name {
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.3;
}

.reach__track {
    height: 34px;
    border-radius: 8px;
    background:
        linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 10% 100%,
        var(--bg);
}

.reach__bar {
    height: 100%;
    min-width: 12px;
    border-radius: 7px;
}

.reach__bar--coax {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 3px;
}

.reach__bar--coax span {
    display: grid;
    place-items: center;
    border-radius: 7px;
    background: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
}

.reach__bar--power {
    background: var(--accent);
}

.reach__bar--remote {
    background: var(--titan);
}

.reach__len {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    text-align: right;
    white-space: nowrap;
}

.reach__scale {
    position: relative;
    height: 18px;
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--ink-3);
}

.reach__scale span {
    position: absolute;
    transform: translateX(-50%);
    white-space: nowrap;
}

.reach__scale span:first-child {
    transform: none;
}

.reach__scale span:last-child {
    transform: translateX(-100%);
}

.reach__row--scale {
    padding-block: 2px 0;
}

.reach figcaption {
    max-width: 84ch;
    margin-top: 16px;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--ink-3);
}

/* Автономная работа */

.power {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: end;
}

.power__value {
    margin-top: clamp(20px, 3vw, 36px);
    font-size: clamp(4.5rem, 1.6rem + 10.5vw, 10rem);
    font-weight: 700;
    line-height: 0.85;
    letter-spacing: -0.06em;
    white-space: nowrap;
    color: #fff;
}

.power__value span {
    font-size: 0.5em;
    letter-spacing: -0.03em;
    color: var(--accent);
}

.power__text {
    max-width: 34ch;
    margin-top: 22px;
    color: var(--on-dark-3);
}

.power__facts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.power__facts li {
    padding: clamp(18px, 2vw, 24px);
    border: 1px solid var(--dark-line);
    border-radius: var(--radius);
    background: var(--dark-2);
}

.power__icon {
    display: block;
    color: var(--accent);
}

.power__facts h3 {
    margin: 16px 0 6px;
    font-size: 1.0625rem;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.power__facts p {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--on-dark-2);
}

.power__note {
    grid-column: 1 / -1;
    padding-top: 18px;
    border-top: 1px solid var(--dark-line);
    font-size: 0.8125rem;
    color: var(--on-dark-2);
}

.power__note a {
    color: var(--on-dark);
    white-space: nowrap;
}

/* Применение */

.applications {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(28px, 5vw, 80px);
    align-items: start;
}

.applications__photo {
    position: sticky;
    top: calc(var(--header-h) + 24px);
}

.applications .section__head {
    margin-bottom: clamp(24px, 3vw, 40px);
}

.applications .section__lead {
    max-width: 58ch;
}

.uses {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 3vw, 48px);
    border-top: 1px solid var(--ink);
}

.use {
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
}

.use__title {
    margin-bottom: 6px;
    font-size: 1.0625rem;
    line-height: 1.25;
    letter-spacing: -0.01em;
}

.use p {
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--ink-2);
}

/* Совместимость */

.compat {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(28px, 5vw, 80px);
    align-items: start;
}

.compat__text {
    max-width: 54ch;
    margin-top: 16px;
    font-size: 0.9688rem;
    color: var(--ink-2);
}

.compat .btn {
    margin-top: 28px;
}

.compat__panel {
    padding: clamp(22px, 3vw, 40px);
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    background: var(--bg);
}

.compat__group + .compat__group {
    margin-top: 24px;
}

.compat__title {
    margin-bottom: 12px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chips li {
    padding: 9px 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    font-size: 0.9688rem;
    font-weight: 600;
    line-height: 1.2;
}

.chips--bands li {
    border-color: var(--ink);
    background: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    font-weight: 500;
    color: #fff;
}

.compat__rows {
    margin-top: 28px;
    border-top: 1px solid var(--line);
}

.compat__rows > div {
    display: grid;
    grid-template-columns: 11rem minmax(0, 1fr);
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
    font-size: 0.9375rem;
    line-height: 1.45;
}

.compat__rows dt {
    color: var(--ink-3);
}

.compat__rows dd {
    font-weight: 600;
}

/* Гарантия и обслуживание */

.service {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 28px);
}

.service__item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: clamp(22px, 3vw, 32px);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-l);
    background: var(--surface);
}

.service__icon {
    margin-bottom: 10px;
    color: var(--accent-deep);
}

.service__item h3 {
    font-size: 1.1875rem;
    letter-spacing: -0.015em;
}

.service__item p {
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--ink-2);
}

.service__item .link-arrow {
    align-self: flex-start;
    margin-top: auto;
}

.service__item p + .link-arrow {
    margin-top: 14px;
}

/* Отзывы */

.review-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 24px);
}

.review {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: clamp(22px, 2.6vw, 32px);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-l);
    background: var(--bg);
}

.review__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.review__date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    white-space: nowrap;
    color: var(--ink-3);
}

.review__text {
    font-size: 1rem;
    line-height: 1.6;
    text-wrap: pretty;
}

.review__author {
    display: flex;
    flex-direction: column;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}

.review__name {
    font-weight: 600;
}

.review__meta {
    font-size: 0.875rem;
    color: var(--ink-3);
}

/* Вопросы и ответы (главная) */

.faq {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(32px, 5vw, 80px);
    align-items: start;
}

.faq__aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
}

.doc-links {
    display: grid;
    gap: 10px;
    margin-top: 28px;
}

.doc-link {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    padding: 16px 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    font-size: 0.875rem;
    line-height: 1.4;
    color: var(--ink-3);
    transition: border-color 0.2s, transform 0.2s;
}

.doc-link:hover {
    border-color: var(--ink);
    transform: translateX(2px);
}

.doc-link b {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--ink);
}

.doc-link > .icon:first-child {
    color: var(--accent-deep);
}

.doc-link > .icon:last-child {
    color: var(--ink);
}

.accordion {
    border-top: 1px solid var(--ink);
}

.accordion__item {
    border-bottom: 1px solid var(--line);
}

.accordion__summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0;
    list-style: none;
    cursor: pointer;
}

.accordion__summary::-webkit-details-marker {
    display: none;
}

.accordion__title {
    font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.25rem);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.015em;
    text-wrap: pretty;
}

.accordion__body {
    max-width: 68ch;
    padding: 0 44px 24px 0;
    color: var(--ink-2);
}

/* Финальный CTA */

.cta {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 5vw, 80px);
    align-items: center;
}

.cta__title {
    font-size: clamp(2rem, 1.1rem + 3.3vw, 3.75rem);
    line-height: 1.02;
    letter-spacing: -0.04em;
    color: #fff;
}

.cta__text {
    max-width: 50ch;
    margin-top: 20px;
    font-size: 1.0625rem;
    color: var(--on-dark-3);
}

.cta__actions {
    display: grid;
    gap: 12px;
}

/* Контакты и карта */

.contacts {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: stretch;
}

.contacts__list {
    margin-top: 28px;
    border-top: 1px solid var(--ink);
}

.contacts__list > div {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
}

.contacts__list dt {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.contacts__list dt .icon {
    color: var(--accent-deep);
}

.contacts__list dd {
    font-size: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.015em;
}

.contacts__mail {
    text-decoration: underline;
    text-decoration-color: var(--accent);
    text-decoration-thickness: 2px;
    text-underline-offset: 4px;
    white-space: nowrap;
}

.contacts__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    margin-top: 24px;
}

.map {
    position: relative;
    min-height: clamp(340px, 44vw, 540px);
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: var(--radius-l);
    background: var(--sunken);
    isolation: isolate;
}

/* Заглушка: условная сетка улиц и маркер. Видна, пока карта не загрузилась или недоступна. */
.map__placeholder {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    justify-items: center;
    gap: 12px;
    padding: 24px;
    text-align: center;
    background:
        linear-gradient(118deg, transparent 47.6%, rgba(20, 22, 26, 0.07) 47.6% 49.4%, transparent 49.4%),
        linear-gradient(28deg, transparent 61%, rgba(20, 22, 26, 0.05) 61% 62.4%, transparent 62.4%),
        linear-gradient(rgba(20, 22, 26, 0.06) 1px, transparent 1px) 0 0 / 100% 64px,
        linear-gradient(90deg, rgba(20, 22, 26, 0.06) 1px, transparent 1px) 0 0 / 64px 100%,
        var(--sunken);
}

.map__pin {
    display: grid;
    place-items: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 10px rgba(255, 90, 31, 0.18);
    color: var(--ink);
}

.map__address {
    margin-top: 8px;
    font-size: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);
    font-weight: 600;
    letter-spacing: -0.015em;
}

.map__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px 20px;
    margin-top: 6px;
}

html:not(.js) [data-map-load] {
    display: none;
}

.map__canvas {
    position: absolute;
    inset: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s;
}

.map.is-ready .map__canvas {
    opacity: 1;
    pointer-events: auto;
}

.map__canvas iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ---------- 5. Внутренние страницы ---------- */

.page-hero {
    padding-block: clamp(28px, 4vw, 56px) clamp(32px, 5vw, 64px);
}

.breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: clamp(24px, 4vw, 48px);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-3);
}

.breadcrumbs a:hover {
    color: var(--ink);
}

.breadcrumbs li + li::before {
    content: "/";
    margin-right: 8px;
    color: var(--line);
}

.page-hero__title {
    max-width: 18ch;
    font-size: clamp(2.25rem, 1.1rem + 4.2vw, 4.5rem);
    line-height: 1;
    letter-spacing: -0.04em;
}

.page-hero__lead {
    max-width: 64ch;
    margin-top: clamp(18px, 2.4vw, 28px);
    font-size: clamp(1.0625rem, 1rem + 0.4vw, 1.3125rem);
    line-height: 1.5;
    color: var(--ink-2);
    text-wrap: pretty;
}

.page-body {
    padding-bottom: var(--section-y);
}

/* Сводка по оценкам */

.rating {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px clamp(24px, 4vw, 56px);
    margin-top: clamp(24px, 3vw, 40px);
    padding-top: clamp(20px, 2.4vw, 28px);
    border-top: 1px solid var(--ink);
}

.rating__score {
    display: flex;
    align-items: baseline;
    gap: 10px;
    font-size: clamp(2.5rem, 1.6rem + 3vw, 4rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.045em;
}

.rating__score span {
    font-size: 0.3em;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--ink-3);
}

.rating__meta {
    display: grid;
    gap: 6px;
    font-size: 0.9375rem;
    color: var(--ink-2);
}

.rating__bars {
    display: grid;
    gap: 4px;
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-3);
}

.rating__bars li {
    display: grid;
    grid-template-columns: 2.2rem 140px 1.2rem;
    gap: 10px;
    align-items: center;
}

.rating__bar {
    height: 6px;
    border-radius: 3px;
    background: var(--line);
}

.rating__bar span {
    display: block;
    height: 100%;
    border-radius: 3px;
    background: var(--accent);
}

/* Страница отзывов: две колонки «кирпичной» раскладкой, порядок — сверху вниз */
.review-grid--page {
    display: block;
    columns: 2;
    column-gap: clamp(16px, 2vw, 24px);
}

.review-grid--page .review {
    margin-bottom: clamp(16px, 2vw, 24px);
    background: var(--surface);
    break-inside: avoid;
}

.review-grid--page .review__text {
    font-size: 1.0625rem;
}

/* Блок «О чём говорят в отзывах», «Смотрите также» */

.notes {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(32px, 5vw, 80px);
    border-top: 1px solid var(--ink);
}

.note {
    padding: clamp(22px, 2.6vw, 30px) 0;
    border-bottom: 1px solid var(--line);
}

.note h3 {
    margin-bottom: 8px;
    font-size: 1.1875rem;
    letter-spacing: -0.015em;
}

.note p {
    font-size: 1rem;
    color: var(--ink-2);
}

.note__link {
    margin-top: 14px;
}

.related {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

/* Инструкции: оглавление + статья */

.doc {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 9fr);
    gap: clamp(32px, 5vw, 80px);
    align-items: start;
}

.toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
}

.toc__title {
    margin-bottom: 12px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.toc__list {
    border-top: 1px solid var(--line);
    counter-reset: toc;
}

.toc__list a {
    display: grid;
    grid-template-columns: 1.8rem minmax(0, 1fr);
    padding: 9px 0;
    border-bottom: 1px solid var(--line);
    font-size: 0.9063rem;
    line-height: 1.35;
    color: var(--ink-2);
    transition: color 0.2s;
}

.toc__list a::before {
    counter-increment: toc;
    content: counter(toc, decimal-leading-zero);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.6;
    color: var(--accent-deep);
}

.toc__list a:hover {
    color: var(--ink);
}

.prose {
    max-width: 800px;
    counter-reset: chapter;
}

.prose > section {
    padding-block: clamp(28px, 4vw, 48px);
    border-top: 1px solid var(--line);
    scroll-margin-top: calc(var(--header-h) + 8px);
}

.prose > section:first-child {
    padding-top: 0;
    border-top: 0;
}

.prose h2 {
    display: grid;
    grid-template-columns: 3rem minmax(0, 1fr);
    align-items: baseline;
    margin-bottom: 18px;
    font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem);
    line-height: 1.12;
    letter-spacing: -0.03em;
}

.prose h2::before {
    counter-increment: chapter;
    content: counter(chapter, decimal-leading-zero);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0;
    color: var(--accent-deep);
}

.prose p {
    color: var(--ink-2);
    text-wrap: pretty;
}

.prose p + p,
.prose ul + p,
.prose ol + p,
.prose p + ul,
.prose p + ol,
.prose p + .table-wrap,
.prose .table-wrap + p,
.prose p + figure {
    margin-top: 16px;
}

.prose strong {
    font-weight: 600;
    color: var(--ink);
}

.notice {
    display: flex;
    gap: 14px;
    margin-bottom: clamp(28px, 4vw, 48px);
    padding: 16px 20px;
    border-left: 3px solid var(--accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    background: var(--surface);
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--ink-2);
}

.checklist {
    display: grid;
    gap: 0;
    border-top: 1px solid var(--line);
}

.checklist li {
    position: relative;
    padding: 12px 0 12px 34px;
    border-bottom: 1px solid var(--line);
    line-height: 1.5;
    color: var(--ink-2);
}

.checklist li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 16px;
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--ink);
    border-radius: 4px;
}

.checklist li::after {
    content: "";
    position: absolute;
    left: 7px;
    top: 19px;
    width: 5px;
    height: 9px;
    border: solid var(--accent-deep);
    border-width: 0 2px 2px 0;
    transform: rotate(40deg);
}

.deflist {
    border-top: 1px solid var(--line);
}

.deflist > div {
    display: grid;
    grid-template-columns: 12rem minmax(0, 1fr);
    gap: 4px 20px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
    line-height: 1.5;
}

.deflist dt {
    font-weight: 600;
}

.deflist dd {
    color: var(--ink-2);
}

.steps {
    display: grid;
    gap: 0;
    counter-reset: step;
}

.steps li {
    position: relative;
    min-height: 44px;
    padding: 0 0 22px 56px;
    line-height: 1.5;
    color: var(--ink-2);
}

.steps li::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 0;
    top: -4px;
    z-index: 1;
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    color: #fff;
}

.steps li::after {
    content: "";
    position: absolute;
    left: 16.5px;
    top: 30px;
    bottom: 4px;
    width: 1px;
    background: var(--line);
}

.steps li:last-child {
    padding-bottom: 0;
}

.steps li:last-child::after {
    display: none;
}

.doc-figure {
    overflow: hidden;
    margin-top: 24px;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-l);
    background: var(--surface);
}

.doc-figure img {
    width: 100%;
}

.doc-figure figcaption {
    padding: 12px 18px 14px;
    border-top: 1px solid var(--line-soft);
    font-size: 0.8125rem;
    color: var(--ink-3);
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
}

.trouble th,
.trouble td {
    padding: 14px 18px;
    vertical-align: top;
    text-align: left;
    font-size: 0.9375rem;
    line-height: 1.45;
}

.trouble thead th {
    border-bottom: 1px solid var(--ink);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-3);
}

.trouble tbody tr + tr {
    border-top: 1px solid var(--line);
}

.trouble tbody th {
    width: 26%;
    font-weight: 600;
}

.trouble tbody td {
    color: var(--ink-2);
}

/* Страница вопросов и ответов */

.faq-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: clamp(24px, 3vw, 36px);
}

.faq-nav a {
    padding: 9px 16px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    font-size: 0.9375rem;
    font-weight: 600;
    transition: border-color 0.2s;
}

.faq-nav a:hover {
    border-color: var(--ink);
}

.faq-nav a span {
    margin-left: 6px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--ink-3);
}

.faq-group {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(20px, 5vw, 80px);
    align-items: start;
    padding-block: clamp(32px, 5vw, 64px);
    border-top: 1px solid var(--ink);
    scroll-margin-top: calc(var(--header-h) + 8px);
}

.faq-group__head {
    position: sticky;
    top: calc(var(--header-h) + 24px);
}

.faq-group__title {
    font-size: clamp(1.625rem, 1.2rem + 1.6vw, 2.5rem);
    line-height: 1.05;
    letter-spacing: -0.035em;
}

.faq-group__count {
    margin-top: 10px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-3);
}

.qa {
    padding-block: clamp(20px, 2.4vw, 28px);
    border-bottom: 1px solid var(--line);
    scroll-margin-top: calc(var(--header-h) + 16px);
}

.qa:first-child {
    padding-top: 0;
}

.qa:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.qa__question {
    margin-bottom: 10px;
    font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
    line-height: 1.25;
    letter-spacing: -0.02em;
    text-wrap: pretty;
}

.qa__answer {
    max-width: 68ch;
    color: var(--ink-2);
    text-wrap: pretty;
}

.qa__link {
    margin-top: 14px;
}

/* ---------- 6. Подвал ---------- */

.footer {
    background: var(--dark);
    color: var(--on-dark-2);
}

.footer__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) repeat(3, minmax(0, 1fr));
    gap: clamp(28px, 4vw, 64px);
    padding-block: clamp(48px, 6vw, 80px) clamp(32px, 4vw, 56px);
}

.footer__about {
    max-width: 36ch;
    margin-top: 16px;
    font-size: 0.9375rem;
    line-height: 1.5;
}

.footer__mail {
    display: inline-block;
    margin-top: 18px;
    border-bottom: 2px solid var(--accent);
    font-weight: 600;
    color: #fff;
}

.footer__title {
    margin-bottom: 16px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--on-dark-2);
}

.footer__list li + li {
    margin-top: 10px;
}

.footer__list a,
.footer__address a {
    font-size: 0.9375rem;
    color: var(--on-dark);
    transition: color 0.2s;
}

.footer__list a:hover,
.footer__address a:hover {
    color: var(--accent);
}

.footer__address {
    display: grid;
    gap: 10px;
}

.footer__bottom {
    padding-block: 22px 32px;
    border-top: 1px solid var(--dark-line);
    font-size: 0.8125rem;
    line-height: 1.5;
}

/* ---------- 7. Адаптив ---------- */

/* Узкий десктоп: навигация плотнее */
@media (max-width: 1320px) {
    .nav__link {
        padding-inline: 9px;
        font-size: 0.875rem;
    }

    .header__inner {
        gap: 14px;
    }
}

/* Планшет и меньше: меню по кнопке */
@media (max-width: 1199px) {
    .burger {
        display: block;
    }

    .nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        display: flex;
        flex-direction: column;
        gap: 28px;
        height: calc(100vh - var(--nav-top, var(--header-h)) + 2px);
        height: calc(100dvh - var(--nav-top, var(--header-h)) + 2px);
        margin: 0;
        padding: 8px var(--gutter) 32px;
        overflow-y: auto;
        overscroll-behavior: contain;
        background: var(--bg);
        visibility: hidden;
        opacity: 0;
        transform: translateY(-8px);
        transition: opacity 0.25s, transform 0.25s, visibility 0s 0.25s;
    }

    .is-menu-open .nav {
        visibility: visible;
        opacity: 1;
        transform: none;
        transition: opacity 0.25s, transform 0.25s;
    }

    /* Только на html: если скрыть прокрутку ещё и у body, перестанет работать прилипание шапки */
    html.is-menu-open {
        overflow: hidden;
    }

    .is-menu-open .header {
        background: var(--bg);
        border-bottom-color: var(--line);
    }

    .nav__list {
        flex-direction: column;
        gap: 0;
    }

    .nav__link {
        padding: 16px 0;
        border-bottom: 1px solid var(--line);
        border-radius: 0;
        font-size: 1.25rem;
        font-weight: 600;
        letter-spacing: -0.015em;
        color: var(--ink);
    }

    .nav__link:hover,
    .nav__link.is-active,
    .nav__link[aria-current="page"] {
        background: none;
        color: var(--accent-deep);
    }

    .nav__extra {
        display: grid;
        gap: 14px;
        margin-top: auto;
    }

    .nav__contact {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 600;
    }

    .nav__contact .icon {
        color: var(--accent-deep);
    }

    .nav__extra .btn {
        margin-top: 8px;
    }

    .header__actions {
        margin-left: auto;
    }

    /* Без JavaScript кнопка меню не работает — показываем ссылки обычным списком под шапкой */
    html:not(.js) .header {
        position: static;
    }

    html:not(.js) .header__inner {
        flex-wrap: wrap;
    }

    html:not(.js) .burger,
    html:not(.js) .nav__extra {
        display: none;
    }

    html:not(.js) .nav {
        position: static;
        order: 3;
        width: 100%;
        height: auto;
        padding: 0 0 12px;
        visibility: visible;
        opacity: 1;
        transform: none;
    }

    .advantages {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .advantage {
        min-height: 200px;
    }
}

@media (max-width: 999px) {
    .hero__card {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero__media {
        margin: 0 12px 12px;
        aspect-ratio: 4 / 3;
    }

    .hero__stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .stat:nth-child(3) {
        border-left: 0;
    }

    .stat:nth-child(n + 3) {
        border-top: 1px solid var(--dark-line);
    }

    .section__head--split {
        grid-template-columns: minmax(0, 1fr);
        align-items: start;
    }

    .arch {
        grid-template-columns: minmax(0, 1fr);
    }

    .arch__link--long {
        flex-direction: row;
        justify-content: flex-start;
        gap: 16px;
        padding: 18px clamp(14px, 1.6vw, 22px);
    }

    .arch__segments {
        width: 96px;
        grid-template-columns: minmax(0, 1fr);
    }

    .arch__link--long .arch__cable {
        text-align: left;
    }

    .arch-benefits,
    .specs__groups,
    .kit,
    .cables,
    .power,
    .applications,
    .compat,
    .faq,
    .cta,
    .contacts,
    .doc {
        grid-template-columns: minmax(0, 1fr);
    }

    .kit__photo,
    .applications__photo,
    .faq__aside,
    .toc {
        position: static;
    }

    .applications__photo {
        max-width: 520px;
    }

    .applications__photo img {
        aspect-ratio: 4 / 3;
        object-fit: cover;
        object-position: 50% 30%;
    }

    .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .review-grid .review:nth-child(3):last-child {
        grid-column: 1 / -1;
    }

    .service {
        grid-template-columns: minmax(0, 1fr);
    }

    .footer__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer__brand {
        grid-column: 1 / -1;
    }

    .related {
        grid-template-columns: minmax(0, 1fr);
    }

    .toc__list {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        column-gap: 24px;
    }

    .rating__bars {
        margin-left: 0;
    }
}

@media (max-width: 719px) {
    body {
        font-size: 1rem;
    }

    .topbar__link--mail {
        display: none;
    }

    .topbar__inner {
        justify-content: center;
    }

    .header__cta {
        width: 44px;
        min-height: 44px;
        padding: 0;
    }

    .header__cta-text {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
    }

    .hero__actions .btn {
        width: 100%;
    }

    .figures {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .figure,
    .figure:not(:nth-child(3n + 1)) {
        padding: 22px 12px 22px 0;
        border-left: 0;
    }

    .figure:nth-child(even) {
        padding-left: 16px;
        border-left: 1px solid var(--line);
    }

    .topics,
    .units,
    .bands,
    .benefits,
    .shots,
    .uses,
    .notes,
    .review-grid,
    .arch__power,
    .toc__list {
        grid-template-columns: minmax(0, 1fr);
    }

    .review-grid--page {
        columns: 1;
    }

    .callout {
        flex-direction: column;
        align-items: flex-start;
    }

    .bands__common {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .arch__row {
        grid-template-columns: minmax(0, 1fr);
    }

    .arch__link--short,
    .arch__link--inner {
        flex-direction: row;
        justify-content: flex-start;
        gap: 14px;
        min-height: 40px;
        padding: 6px 0 6px 30px;
    }

    .arch__link .arch__wire {
        width: 9px;
        height: 28px;
        border-block: 0;
        border-inline: 2px solid var(--ink);
    }

    .arch__link--short .arch__cable {
        text-align: left;
    }

    .arch__link--short .arch__cable b {
        display: inline;
        margin-right: 6px;
    }

    .specs__bar {
        flex-direction: column;
    }

    .specs__index {
        flex-wrap: nowrap;
        width: calc(100% + 2 * var(--gutter));
        margin-inline: calc(-1 * var(--gutter));
        padding-inline: var(--gutter);
        overflow-x: auto;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }

    .specs__index::-webkit-scrollbar {
        display: none;
    }

    .specs__index a {
        flex: none;
    }

    .reach__scale span:nth-child(4) {
        display: none;
    }

    .spec-table tr {
        display: grid;
        padding: 12px 0;
    }

    .spec-table th,
    .spec-table td {
        width: auto;
        padding: 0;
    }

    .spec-table th {
        margin-bottom: 2px;
        font-size: 0.875rem;
        color: var(--ink-3);
    }

    .kit-table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
    }

    .kit-table tbody tr {
        display: grid;
        grid-template-columns: 42px minmax(0, 1fr);
        padding: 12px 0;
    }

    .kit-table tbody th,
    .kit-table tbody td {
        padding: 0;
    }

    .kit-table__n {
        grid-row: span 2;
    }

    .kit-table tbody .kit-table__qty {
        grid-column: 2;
        margin-top: 4px;
        text-align: left;
        color: var(--accent-deep);
    }

    .kit-table tbody {
        border-top: 1px solid var(--ink);
    }

    .cable-list li {
        grid-template-columns: minmax(0, 1fr);
        gap: 4px;
    }

    .reach__row {
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 6px 12px;
    }

    .reach__track,
    .reach__scale {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .reach__row--scale .reach__name,
    .reach__row--scale .reach__len {
        display: none;
    }

    .reach__row--scale .reach__scale {
        grid-row: 1;
    }

    .power__facts {
        grid-template-columns: minmax(0, 1fr);
    }

    .compat__rows > div {
        grid-template-columns: minmax(0, 1fr);
        gap: 2px;
    }

    .compat .btn,
    .cta__actions .btn {
        width: 100%;
    }

    .accordion__body {
        padding-right: 0;
    }

    .faq-group {
        grid-template-columns: minmax(0, 1fr);
    }

    .faq-group__head {
        position: static;
    }

    .trouble thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
    }

    .trouble tbody tr {
        display: grid;
        gap: 8px;
        padding: 16px 18px;
    }

    .trouble tbody th,
    .trouble tbody td {
        width: auto;
        padding: 0;
    }

    .trouble tbody td::before {
        content: attr(data-label);
        display: block;
        font-family: var(--font-mono);
        font-size: 0.6875rem;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--ink-3);
    }

    .prose h2 {
        grid-template-columns: 2.4rem minmax(0, 1fr);
    }

    .deflist > div {
        grid-template-columns: minmax(0, 1fr);
    }

    .steps li {
        padding-left: 48px;
    }

    .footer__grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .rating__bars li {
        grid-template-columns: 2.2rem minmax(80px, 140px) 1.2rem;
    }
}

@media (max-width: 479px) {
    .advantages {
        grid-template-columns: minmax(0, 1fr);
    }

    .advantage {
        min-height: 0;
    }

    .advantage::before {
        padding-bottom: 16px;
    }

    .band__beams {
        gap: 8px;
    }

    .bands__common {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero__caption {
        display: none;
    }
}

/* ---------- 8. Анимация появления, печать ---------- */

.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

@media print {
    .topbar,
    .header,
    .burger,
    .map,
    .hotspot,
    .specs__toggle,
    .copy {
        display: none !important;
    }

    body {
        background: #fff;
    }

    .section {
        padding-block: 24px;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}