/* ООО «Автобетон» — по композиции avtobeton-alushta.ru, контент Москва */
:root {
  --color-yellow: #ffcc33;
  --color-yellow-dark: #e6b800;
  --color-black: #1a1a1a;
  --color-gray-900: #222;
  --color-gray-700: #444;
  --color-gray-500: #666;
  --color-gray-200: #e5e5e5;
  --color-gray-100: #f5f5f5;
  --color-white: #fff;
  --color-accent: #c41e1e;
  --font: "Montserrat", system-ui, -apple-system, sans-serif;
  --container: min(1170px, calc(100% - 40px));
  --radius: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 6px 20px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 10px 28px rgba(0, 0, 0, 0.1);
  --masthead-h: 118px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--masthead-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-gray-700);
  background: var(--color-white);
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.9375rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.15s;
}

.btn--primary {
  background: var(--color-yellow);
  color: var(--color-black);
  border-color: var(--color-yellow);
}

.btn--primary:hover {
  background: var(--color-yellow-dark);
  border-color: var(--color-yellow-dark);
}

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

.btn--wide {
  padding-inline: 36px;
  border-radius: var(--radius);
}

/* Masthead: два блока как на оригинале, не «универсальная» шапка лендинга */
.masthead {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--color-white);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

.masthead.header--scrolled,
.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.topbar {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  font-size: 0.8125rem;
}

.topbar__inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: center;
  gap: 8px 12px;
  min-height: 40px;
  padding-block: 8px;
}

.topbar__cell {
  text-align: center;
  min-width: 0;
}

.topbar__link {
  font-weight: 600;
  color: var(--color-gray-700);
  text-decoration: none;
  word-break: break-word;
}

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

.topbar__cell-text {
  margin: 0;
  font-weight: 600;
  color: var(--color-gray-700);
  font-size: 0.8125rem;
  line-height: 1.35;
}

.header--site {
  background: var(--color-white);
}

.header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
  padding-block: 10px;
}

.header__logo img {
  display: block;
  height: auto;
  max-height: 52px;
  width: auto;
  max-width: min(200px, 55vw);
}

.nav-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 6px 18px;
}

.nav-main__link {
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-black);
  text-decoration: none;
}

.nav-main__link:hover {
  color: var(--color-accent);
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
}

.burger__line {
  display: block;
  height: 2px;
  width: 24px;
  background: var(--color-black);
  border-radius: 1px;
}

/* Hero — фото с исходника, тёмная панель слева */
.hero--original {
  position: relative;
  min-height: min(520px, 78vw);
  max-height: 640px;
  display: flex;
  align-items: stretch;
}

.hero__photo {
  position: absolute;
  inset: 0;
  background: var(--color-gray-900) url("../assets/img/hero-bg.jpg") center / cover no-repeat;
}

.hero__shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.15) 55%, transparent 100%);
  pointer-events: none;
}

.hero__layout {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  padding-block: 48px 56px;
}

.hero__panel {
  max-width: 520px;
  padding: 28px 32px 32px;
  background: rgba(0, 0, 0, 0.72);
  color: var(--color-white);
  border-radius: 2px;
}

.hero__panel-title {
  margin: 0 0 16px;
  font-size: clamp(1.15rem, 2.8vw, 1.65rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero__panel-text {
  margin: 0 0 22px;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.92);
}

.hero__panel-btn {
  display: inline-block;
  padding: 10px 22px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-black);
  background: var(--color-yellow);
  border-radius: 2px;
}

.hero__panel-btn:hover {
  background: var(--color-yellow-dark);
  color: var(--color-black);
}

/* Services — карточки с фото как на оригинале */
.section {
  padding-block: 72px;
}

.section--gray {
  background: var(--color-gray-100);
}

.services-block__title {
  margin: 0 0 16px;
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--color-black);
  letter-spacing: -0.02em;
}

.services-block__intro {
  margin: 0 auto 40px;
  max-width: 920px;
  text-align: center;
  color: var(--color-gray-500);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.services-block__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px 24px;
}

.svc-card__media {
  display: block;
  overflow: hidden;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}

.svc-card__media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.svc-card__media:hover img {
  transform: scale(1.04);
}

.svc-card__name {
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-black);
  position: relative;
  padding-bottom: 12px;
}

.svc-card__name::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: var(--color-yellow);
}

.svc-card__name a {
  text-decoration: none;
  color: inherit;
}

.svc-card__name a:hover {
  color: var(--color-accent);
}

.svc-card__text {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-gray-500);
  line-height: 1.55;
}

.services-block__cta {
  margin-top: 40px;
  text-align: center;
}

/* Марки бетона и цены */
.prices-beton {
  background: var(--color-white);
}

.prices-beton__title {
  margin: 0 0 16px;
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--color-black);
  letter-spacing: -0.02em;
}

.prices-beton__subtitle {
  margin: 0 auto 40px;
  max-width: 920px;
  text-align: center;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-gray-500);
}

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

.price-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.price-card:hover {
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
}

.price-card__media {
  aspect-ratio: 1 / 1;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.price-card__media picture {
  display: block;
  width: 100%;
  height: 100%;
  margin: 0;
}

.price-card__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.price-card__title {
  margin: 0;
  padding: 18px 20px 6px;
  font-size: clamp(1.35rem, 2.5vw, 1.65rem);
  font-weight: 800;
  text-align: center;
  letter-spacing: 0.02em;
  color: var(--color-black);
}

.price-card__price {
  margin: 0;
  padding: 0 20px 22px;
  font-size: 1.0625rem;
  font-weight: 600;
  text-align: center;
  color: var(--color-gray-700);
}

.prices-beton__note {
  margin: 36px auto 0;
  max-width: 640px;
  text-align: center;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-gray-500);
}

@media (max-width: 1024px) {
  .prices-beton__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .prices-beton__grid {
    grid-template-columns: 1fr;
  }
}

/* Лаборатория контроля качества */
.lab-block__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px 48px;
  align-items: center;
}

.lab-block__content {
  min-width: 0;
}

.lab-block__title {
  margin: 0 0 14px;
  text-align: left;
  font-size: clamp(1.35rem, 2.6vw, 1.75rem);
  font-weight: 800;
  color: var(--color-black);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.lab-block__text {
  margin: 0 0 22px;
  text-align: left;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-gray-700);
}

.lab-block__features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 24px;
}

.lab-block__feature {
  position: relative;
  margin: 0;
  padding-left: 22px;
  font-size: 0.9375rem;
  line-height: 1.5;
  font-weight: 600;
  color: var(--color-black);
}

.lab-block__feature::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-yellow);
}

.lab-block__figure {
  margin: 0;
  min-width: 0;
}

.lab-block__photo {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.lab-block__caption {
  margin: 10px 0 0;
  font-size: 0.8125rem;
  line-height: 1.45;
  text-align: left;
  color: var(--color-gray-500);
}

@media (max-width: 900px) {
  .lab-block__layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .lab-block__figure {
    order: -1;
  }

  .lab-block__caption {
    text-align: center;
  }
}

@media (max-width: 640px) {
  .lab-block__features {
    grid-template-columns: 1fr;
  }
}

/* О компании — как на avtobeton-alushta.ru */
.section--about {
  background: var(--color-white);
}

.about-split__head {
  text-align: center;
  max-width: 920px;
  margin: 0 auto 44px;
}

.about-split__heading {
  margin: 0 0 14px;
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-black);
}

.about-split__heading::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  margin: 14px auto 0;
  background: var(--color-yellow);
}

.about-split__intro {
  margin: 20px 0 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-gray-700);
}

.about-split__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px 40px;
  align-items: center;
}

.about-split__video {
  display: flex;
  justify-content: center;
}

.about-split__video-ring {
  position: relative;
  width: min(100%, 400px);
  aspect-ratio: 1;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-gray-200);
  box-shadow: var(--shadow-card);
  background: var(--color-black);
}

.about-split__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.about-split__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.about-split__item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.about-split__icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: none;
  color: var(--color-white);
  background: var(--color-yellow);
  box-shadow: var(--shadow-sm);
}

.about-split__item-title {
  margin: 0 0 8px;
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-black);
}

.about-split__item-text {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-gray-500);
  line-height: 1.55;
}

/* Форма заявки — визуал как у вас на скрине */
.order-beton {
  position: relative;
  padding-block: 88px 96px;
  color: var(--color-white);
  overflow: hidden;
}

.order-beton__bg {
  position: absolute;
  inset: 0;
  background-color: #1a1a1a;
  background-image: url("../assets/img/order-beton-bg.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.order-beton__overlay {
  position: absolute;
  inset: 0;
  background: rgba(12, 12, 14, 0.75);
}

.order-beton__inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.section__title {
  margin: 0 0 12px;
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 800;
  color: var(--color-black);
}

.section__title--light {
  color: var(--color-white);
}

.order-beton__lead {
  margin: 0 0 28px;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.92);
}

.order-beton__fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 22px;
}

.order-beton__input {
  width: 100%;
  padding: 14px 18px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, background 0.2s;
}

.order-beton__input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.order-beton__input:focus {
  outline: none;
  border-color: var(--color-yellow);
  background: rgba(255, 255, 255, 0.16);
}

.order-beton__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px 28px;
}

.order-beton__submit {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 800;
  padding-inline: 36px;
}

.order-beton__call {
  margin: 0;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.9);
}

.order-beton__call a {
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
}

.order-beton__call a:hover {
  color: var(--color-yellow);
}

.order-beton__errors .js-rule-error-all {
  margin: 0 0 10px;
  color: #ffb4b4;
  font-size: 0.875rem;
  font-weight: 600;
}

.order-beton__success {
  margin-top: 18px;
  padding: 14px 18px;
  text-align: center;
  border-radius: var(--radius-sm);
  background: rgba(255, 204, 51, 0.2);
  color: var(--color-white);
  border: 1px solid rgba(255, 204, 51, 0.45);
  font-weight: 600;
}

/* Контакты — блок сохранён по вашей просьбе */
.contacts-block__grid {
  display: grid;
  grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
  min-height: 400px;
}

.contacts-block__card {
  background: var(--color-gray-100);
  border-radius: var(--radius);
  padding: 28px 26px;
  border: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.contacts-block__heading {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-black);
}

.contacts-block__list {
  margin: 0;
  width: 100%;
}

.contacts-block__row {
  margin: 0 0 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-gray-200);
}

.contacts-block__row:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.contacts-block__row dt {
  margin: 0 0 4px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gray-500);
}

.contacts-block__row dd {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-black);
  line-height: 1.45;
}

.contacts-block__row a {
  text-decoration: none;
  color: var(--color-black);
}

.contacts-block__row a:hover {
  color: var(--color-accent);
}

.contacts-block__btn {
  margin-top: auto;
}

.contacts-block__map {
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 360px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-200);
}

.contacts-block__map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 360px;
}

/* Футер — только копирайт, без меню и ссылок */
.footer--minimal {
  background: var(--color-black);
  padding-block: 22px;
  font-size: 0.875rem;
}

.footer__bar {
  padding-block: 0;
  border-top: none;
}

.footer__copy {
  margin: 0;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}

/* Наверх */
.back-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 45;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-yellow);
  color: var(--color-black);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  font-weight: 800;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.25s, visibility 0.25s, transform 0.25s;
}

.back-top.back-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  background: var(--color-yellow-dark);
}

/* Modal */
.modal[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  cursor: pointer;
}

.modal__dialog {
  position: relative;
  z-index: 1;
  width: min(440px, 100%);
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 32px 28px 28px;
  box-shadow: var(--shadow-card);
}

.modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border: none;
  background: var(--color-gray-100);
  border-radius: 50%;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--color-gray-700);
}

.modal__title {
  margin: 0 0 10px;
  text-align: left;
}

.modal__lead {
  margin: 0 0 20px;
  font-size: 0.9375rem;
  color: var(--color-gray-500);
}

.form {
  display: grid;
  gap: 16px;
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form__label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-gray-700);
}

.form__input {
  padding: 12px 14px;
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: var(--radius-sm);
}

.form__input:focus {
  outline: none;
  border-color: var(--color-yellow);
}

.modal .js-errorbox-all .js-rule-error-all {
  margin: 0 0 10px;
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 600;
}

.form__successbox {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(37, 211, 102, 0.14);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-gray-700);
}

.modal__note {
  margin: 16px 0 0;
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

body.nav-open {
  overflow: hidden;
}

@media (max-width: 1024px) {
  .services-block__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-split__grid {
    grid-template-columns: 1fr;
  }

  .contacts-block__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .burger {
    display: flex;
  }

  .nav-main {
    position: fixed;
    left: 0;
    right: 0;
    top: var(--masthead-h);
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 24px;
    gap: 0;
    box-shadow: var(--shadow-sm);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .nav-main.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-main__link {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-gray-200);
  }
}

@media (max-width: 640px) {
  :root {
    --container: calc(100% - 28px);
    --masthead-h: 108px;
  }

  .section {
    padding-block: 56px;
  }

  .services-block__grid {
    grid-template-columns: 1fr;
  }

  .order-beton__fields {
    grid-template-columns: 1fr;
  }

  .order-beton__actions {
    flex-direction: column;
  }

  .topbar__inner {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .topbar__cell {
    text-align: center;
  }
}