/* =========================================================
   disan-msk.ru — стили сайта
   Фирменные цвета Disan: оранжевый #D9400B, тёмный #1B1B1B
   Структура файла:
     1. Токены и база        6. Карточки каталога
     2. Кнопки и иконки      7. Таблицы и списки
     3. Шапка и меню         8. FAQ и контакты
     4. Первый экран         9. Подвал
     5. Сетки и карточки    10. Адаптив
   ========================================================= */

/* ---------------- 1. Токены и база ---------------- */
:root {
  --orange: #d9400b;
  --orange-dark: #b53306;
  --orange-light: #ffe1d6;
  --dark: #1b1b1b;
  --dark-2: #262626;
  --gray: #6b6b6b;
  --gray-light: #f4f4f4;
  --line: #e5e5e5;
  --white: #ffffff;
  --container: 1200px;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 10px 30px rgba(217, 64, 11, 0.25);
  --font: "Segoe UI", "Roboto", Arial, sans-serif;
  --transition: all 0.25s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--dark);
  background: var(--white);
  line-height: 1.55;
  font-size: 16px;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--orange);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--orange-dark);
}

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
}

p + p {
  margin-top: 12px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 64px 0;
}

.section--gray {
  background: var(--gray-light);
}

.section--dark {
  background: var(--dark);
  color: #d8d8d8;
}

.section--dark h2,
.section--dark h3 {
  color: #fff;
}

.section-head {
  max-width: 720px;
  margin-bottom: 40px;
}

.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title {
  font-size: 30px;
  margin-bottom: 12px;
}

.section-lead {
  color: var(--gray);
  font-size: 16.5px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--orange);
  color: #fff;
  padding: 10px 18px;
  z-index: 2000;
}

.skip-link:focus {
  left: 0;
}

/* ---------------- 2. Кнопки и иконки ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  background: transparent;
  font-family: inherit;
  line-height: 1.2;
}

.btn-primary {
  background: var(--orange);
  color: #fff;
  border-color: var(--orange);
}

.btn-primary:hover {
  background: var(--orange-dark);
  border-color: var(--orange-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  border-color: var(--orange);
  color: var(--orange);
}

.btn-outline:hover {
  background: var(--orange-light);
  color: var(--orange-dark);
}

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

.btn-dark:hover {
  background: #000;
  border-color: #000;
  color: #fff;
}

.btn-lg {
  padding: 16px 38px;
  font-size: 16px;
}

.icon {
  flex-shrink: 0;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

/* ---------------- 3. Шапка и меню ---------------- */
.topbar {
  background: var(--dark);
  color: #cfcfcf;
  font-size: 14px;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  gap: 16px;
  flex-wrap: wrap;
  padding: 6px 0;
}

.topbar-links {
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
}

.topbar-links a,
.topbar-links span {
  color: #cfcfcf;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.topbar-links a:hover {
  color: #fff;
}

.header {
  background: #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo:hover {
  color: inherit;
}

.logo-mark {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--orange) 0%, #f26522 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.logo-text {
  line-height: 1.15;
}

.logo-text strong {
  display: block;
  font-size: 22px;
  letter-spacing: 0.5px;
  color: var(--dark);
}

.logo-text span {
  font-size: 12px;
  color: var(--gray);
  letter-spacing: 0.3px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-item > a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 10px 12px;
  color: var(--dark);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.nav-item > a:hover,
.nav-item.is-active > a {
  color: var(--orange);
  background: var(--orange-light);
}

.nav-dropdown {
  position: absolute;
  left: 0;
  top: calc(100% + 6px);
  min-width: 250px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: var(--transition);
  z-index: 20;
}

.nav-item.has-children:hover .nav-dropdown,
.nav-item.has-children:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--dark);
  font-size: 14.5px;
}

.nav-dropdown a:hover {
  background: var(--gray-light);
  color: var(--orange);
}

.header-contacts {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  margin-left: auto;
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  white-space: nowrap;
}

.header-phone:hover {
  color: var(--orange);
}

.header-mail {
  font-size: 13.5px;
  color: var(--gray);
  white-space: nowrap;
}

.header-mail:hover {
  color: var(--orange);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  padding: 0 11px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Первый экран и заголовки страниц */
.hero {
  background: linear-gradient(120deg, #1b1b1b 0%, #2c2c2c 55%, #3a2418 100%);
  color: #e8e8e8;
  padding: 72px 0 64px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-size: 40px;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 18px;
}

.hero-title span {
  color: var(--orange);
}

.hero-lead {
  font-size: 17.5px;
  color: #cbcbcb;
  margin-bottom: 26px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
  color: #d5d5d5;
}

.hero-facts li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
}

.hero-facts .icon {
  color: var(--orange);
  margin-top: 3px;
}

.hero-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 26px;
}

.hero-card h2 {
  color: #fff;
  font-size: 19px;
  margin-bottom: 14px;
}

.hero-card ul li {
  padding-left: 26px;
  position: relative;
  margin-bottom: 10px;
  font-size: 15px;
}

.hero-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--orange);
}

.page-head {
  background: var(--gray-light);
  border-bottom: 1px solid var(--line);
  padding: 44px 0 38px;
}

.page-head__overline {
  color: var(--orange);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 13px;
  margin-bottom: 10px;
}

.page-head__title {
  font-size: 34px;
  margin-bottom: 12px;
}

.page-head__lead {
  color: var(--gray);
  max-width: 820px;
  font-size: 16.5px;
}

.breadcrumbs {
  background: #fff;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 0;
  color: var(--gray);
}

.breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: #bdbdbd;
}

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

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

/* ---------------- 4. Сетки, карточки услуг и преимуществ ---------------- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: var(--orange-light);
  color: var(--orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.card__title {
  font-size: 19px;
  margin-bottom: 10px;
}

.card__text {
  color: #4a4a4a;
  font-size: 15px;
  margin-bottom: 14px;
}

.card__list {
  margin-bottom: 16px;
}

.card__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  color: #4a4a4a;
  margin-bottom: 7px;
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
}

.adv-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.adv-item .icon {
  color: var(--orange);
  margin-top: 3px;
}

.adv-item strong {
  display: block;
  font-size: 16.5px;
  margin-bottom: 4px;
}

.adv-item p {
  color: var(--gray);
  font-size: 14.5px;
}

.steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.step {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
}

.step::before {
  counter-increment: step;
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  font-weight: 700;
  margin-bottom: 14px;
}

.step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.step p {
  color: var(--gray);
  font-size: 14.5px;
}

/* Плитки разделов каталога */
.tiles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.tile {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  color: inherit;
  transition: var(--transition);
}

.tile:hover {
  border-color: var(--orange);
  box-shadow: var(--shadow);
  color: inherit;
  transform: translateY(-4px);
}

.tile .card__icon {
  margin-bottom: 18px;
}

.tile h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.tile p {
  color: var(--gray);
  font-size: 15px;
  margin-bottom: 16px;
}

.tile .link-more {
  margin-top: auto;
}

.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.category-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--dark);
  background: #fff;
}

.category-nav a:hover,
.category-nav a.is-active {
  border-color: var(--orange);
  color: var(--orange);
  background: var(--orange-light);
}

/* ---------------- 5. Карточки каталога ---------------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.products-grid--wide {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.product-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.product-card__media {
  background: #fbfbfb;
  border-bottom: 1px solid var(--line);
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}

.product-card__media img {
  max-height: 100%;
  object-fit: contain;
}

.product-card__placeholder {
  color: #d3d3d3;
}

.product-card__body {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.product-card__title {
  font-size: 16.5px;
  margin-bottom: 6px;
}

.product-card__sku {
  font-size: 13px;
  color: var(--gray);
  margin-bottom: 10px;
}

.product-card__sku span {
  color: var(--dark);
  font-weight: 600;
}

.product-card__text {
  font-size: 14.5px;
  color: #4a4a4a;
  margin-bottom: 12px;
}

.product-card__specs {
  border-top: 1px dashed var(--line);
  padding-top: 12px;
  margin-bottom: 12px;
  font-size: 13.5px;
}

.product-card__specs div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 3px 0;
}

.product-card__specs dt {
  color: var(--gray);
}

.product-card__specs dd {
  font-weight: 600;
  text-align: right;
}

.product-card__note {
  margin-top: auto;
  font-size: 13px;
  color: var(--gray);
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.product-card__more {
  border-top: 1px dashed var(--line);
  padding-top: 10px;
  margin-bottom: 12px;
}

.product-card__more summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--orange);
  list-style: none;
}

.product-card__more summary::-webkit-details-marker {
  display: none;
}

.product-card__more summary::after {
  content: " ▾";
  font-size: 12px;
}

.product-card__more[open] summary::after {
  content: " ▴";
}

.product-card__more-body {
  margin-top: 12px;
  font-size: 13.5px;
}

.product-card__source-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--gray);
  margin: 12px 0 6px;
}

.product-card__source {
  color: #4a4a4a;
  font-size: 13.5px;
}

.product-card__more-body .spec-table th,
.product-card__more-body .spec-table td {
  padding: 7px 10px;
}

.product-card__more-body .feature-list li {
  font-size: 13.5px;
}

.model-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  margin-bottom: 22px;
}

.model-card__media {
  background: #fbfbfb;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  aspect-ratio: 1 / 1;
}

.model-card__title {
  font-size: 21px;
  margin-bottom: 6px;
}

.model-card__series {
  font-size: 13px;
  color: var(--orange);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.model-card__text {
  font-size: 15px;
  color: #4a4a4a;
  margin-bottom: 16px;
}

/* ---------------- 6. Таблицы, списки, FAQ, контакты ---------------- */
.spec-table-wrap {
  overflow-x: auto;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

.spec-table__caption {
  font-size: 16px;
  margin-bottom: 10px;
}

.spec-table th,
.spec-table td {
  border-bottom: 1px solid var(--line);
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  color: var(--gray);
  font-weight: 600;
  width: 55%;
}

.spec-table td {
  font-weight: 600;
}

.feature-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 9px;
  font-size: 15px;
  color: #3f3f3f;
}

.feature-list .icon {
  color: var(--orange);
  margin-top: 3px;
}

.prose {
  max-width: 900px;
}

.prose h2 {
  font-size: 24px;
  margin: 34px 0 14px;
}

.prose h3 {
  font-size: 19px;
  margin: 26px 0 10px;
}

.prose p,
.prose li {
  color: #3f3f3f;
  font-size: 16px;
}

.prose ul {
  margin: 12px 0 12px 4px;
}

.prose ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
}

.faq__item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  font-size: 16.5px;
  list-style: none;
}

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

.faq__question .icon {
  color: var(--orange);
  transition: transform 0.2s ease;
}

.faq__item[open] .faq__question .icon {
  transform: rotate(90deg);
}

.faq__item[open] .faq__question {
  color: var(--orange);
}

.faq__answer {
  padding: 0 22px 20px;
  color: #3f3f3f;
  font-size: 15.5px;
}

.contact-cta {
  background: var(--orange-light);
  border: 1px solid #ffd0bd;
  border-radius: var(--radius);
  padding: 26px 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 32px;
}

.contact-cta p {
  font-size: 16px;
  color: #7a2c0f;
  margin: 0;
  max-width: 620px;
}

.contact-cta__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.contacts-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.contact-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}

.contact-card .card__icon {
  margin-bottom: 14px;
}

.contact-card__label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--gray);
  margin-bottom: 8px;
}

.contact-card__value {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark);
  word-break: break-word;
}

.contact-card__value a {
  color: var(--dark);
}

.contact-card__value a:hover {
  color: var(--orange);
}

.note-box {
  background: var(--gray-light);
  border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 22px;
  color: #4a4a4a;
  font-size: 15px;
}

.source-note {
  font-size: 13px;
  color: var(--gray);
  margin-top: 26px;
}

/* ---------------- 7. Подвал ---------------- */
.footer {
  background: var(--dark);
  color: #b9b9b9;
  padding: 54px 0 26px;
  font-size: 14.5px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 32px;
}

.logo--footer .logo-text strong {
  color: #fff;
}

.logo--footer .logo-text span {
  color: #9a9a9a;
}

.footer-note {
  margin-top: 16px;
  color: #a5a5a5;
  max-width: 340px;
}

.footer-title {
  color: #fff;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 14px;
}

.footer-list li {
  margin-bottom: 9px;
}

.footer-list a,
.footer-list span {
  color: #b9b9b9;
}

.footer-list a:hover {
  color: var(--orange);
}

.footer-list--contacts li {
  display: flex;
  gap: 9px;
  align-items: flex-start;
}

.footer-list--contacts .icon {
  color: var(--orange);
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid #333;
  margin-top: 40px;
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  justify-content: space-between;
  color: #8d8d8d;
  font-size: 13.5px;
}

.footer-legal {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-legal a {
  color: #8d8d8d;
}

.footer-legal a:hover {
  color: var(--orange);
}

.footer-source {
  color: #7d7d7d;
}

/* ---------------- 8. Адаптив ---------------- */
@media (max-width: 1200px) {
  .products-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 992px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-title {
    font-size: 32px;
  }

  .grid-3,
  .grid-4,
  .tiles,
  .contacts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .model-card {
    grid-template-columns: 1fr;
  }

  .model-card__media {
    max-width: 260px;
  }

  .nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav.is-open {
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: #fff;
    border-top: 1px solid var(--line);
    box-shadow: var(--shadow);
    padding: 14px 20px 22px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }

  .nav.is-open .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav.is-open .nav-item > a {
    justify-content: space-between;
    padding: 13px 10px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }

  .nav.is-open .nav-item:last-child > a {
    border-bottom: 0;
  }

  .nav.is-open .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    border-radius: 0;
    padding: 2px 0 8px 14px;
  }

  .nav.is-open .nav-item > a .icon {
    display: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 46px 0;
  }

  .section-title {
    font-size: 25px;
  }

  .page-head__title {
    font-size: 27px;
  }

  .hero {
    padding: 52px 0 46px;
  }

  .hero-title {
    font-size: 27px;
  }

  .hero-facts {
    grid-template-columns: 1fr;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .tiles,
  .contacts-grid,
  .products-grid,
  .products-grid--wide,
  .steps {
    grid-template-columns: 1fr;
  }

  .header-contacts {
    display: none;
  }

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

  .contact-cta__actions {
    width: 100%;
  }

  .contact-cta__actions .btn {
    flex: 1 1 auto;
  }

  .topbar-links {
    gap: 14px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15.5px;
  }

  .container {
    padding: 0 16px;
  }

  .logo-text strong {
    font-size: 19px;
  }

  .logo-mark {
    width: 40px;
    height: 40px;
  }

  .btn {
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .spec-table th {
    width: 50%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}