:root {
  --color-bg: #f4f5f7;
  --color-surface: #ffffff;
  --color-primary: #234436; /* тёмно-зелёный акцент */
  --color-primary-soft: #edf2ef;
  --color-border: #dde1e6;
  --color-text-main: #1f2933;
  --color-text-muted: #6b7280;
  --shadow-soft: 0 10px 25px rgba(15, 23, 42, 0.08);
  --radius-lg: 12px;
  --radius-xl: 18px;
  --transition-fast: 150ms ease;
  --transition-normal: 220ms ease;
}

/* Сброс и базовая типографика */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background-color: var(--color-bg);
  color: var(--color-text-main);
}

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

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

a:hover {
  text-decoration: none;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

h1, h2, h3, h4, h5 {
  margin-top: 0;
  font-weight: 600;
  color: var(--color-text-main);
}

/* Контейнер и секции */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 48px 0;
}

.section-alt {
  background-color: var(--color-primary-soft);
}

.section-title {
  font-size: 28px;
  margin-bottom: 24px;
}

.section-intro {
  max-width: 640px;
  margin-bottom: 32px;
  color: var(--color-text-muted);
}

/* Шапка */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.header-container {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  column-gap: 24px;
  height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background-color: #ffffff;
  padding: 4px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #ffffff;
  align-items: center;
  justify-content: center;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 99px;
  background-color: var(--color-text-main);
  transition: transform var(--transition-fast), opacity var(--transition-fast), translate var(--transition-fast);
}

.nav-toggle span + span {
  margin-top: 4px;
}

.main-nav {
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.nav-link {
  position: relative;
  padding: 6px 0;
  font-size: 15px;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-primary);
  transition: width var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-text-main);
}

.nav-link--active {
  color: var(--color-primary);
  font-weight: 600;
}

.nav-link--active::after {
  width: 100%;
}

/* Кнопки */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background-color var(--transition-normal),
    color var(--transition-normal),
    box-shadow var(--transition-normal),
    transform var(--transition-fast),
    border-color var(--transition-normal);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
  background-color: #173428;
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: #ffffff;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-primary-soft);
}

/* Ссылки-стрелки */
.link-arrow {
  font-size: 14px;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.link-arrow::after {
  content: "→";
  font-size: 14px;
}

/* Hero */
.hero {
  padding: 48px 0 36px;
  background: linear-gradient(135deg, #ffffff 0%, #f7fafc 40%, #edf2ef 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

.hero-text h1 {
  font-size: 32px;
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-text p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-image {
  justify-self: end;
  max-width: 420px;
}

.hero-image img {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
}

/* Карточки и сетки */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  padding: 18px 18px 20px;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.03);
  transition:
    box-shadow var(--transition-normal),
    transform var(--transition-fast),
    border-color var(--transition-normal),
    background-color var(--transition-normal);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
  background-color: #ffffff;
}

.card-icon {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background-color: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  font-size: 16px;
  color: var(--color-primary);
}

/* Категории */
.categories-grid .card-image {
  margin-bottom: 12px;
  border-radius: 10px;
  overflow: hidden;
}

.category-card .card-body h3 {
  margin-bottom: 6px;
}

.category-card .card-body p {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* Краткий блок "О компании" на главной */
.about-short {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.about-short-text p {
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.about-short-image img {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

/* Каталог */
.product-grid {
  margin-top: 24px;
}

.product-card {
  cursor: pointer;
}

.product-card .card-image {
  margin-bottom: 12px;
  border-radius: 10px;
  overflow: hidden;
}

.product-title {
  font-size: 18px;
  margin-bottom: 8px;
}

.product-description {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.product-price {
  font-weight: 600;
  color: var(--color-primary);
}

/* Страница товара */
.product-page {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.3fr);
  gap: 32px;
}

/* Галерея товара */
.product-gallery {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.product-gallery-main img {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background-color: #f3f4f6;
  cursor: zoom-in;
}

.product-gallery-thumbs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.gallery-thumb {
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 3px;
  background-color: #f9fafb;
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.gallery-thumb img {
  width: 70px;
  height: 70px;
  object-fit: cover;
  border-radius: 7px;
}

.gallery-thumb.is-active {
  border-color: var(--color-primary);
  background-color: var(--color-primary-soft);
  transform: translateY(-1px);
}

/* Лайтбокс */
.gallery-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.gallery-lightbox.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.gallery-lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.gallery-lightbox-inner img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 12px;
  background-color: #000;
}

.gallery-lightbox-close,
.gallery-lightbox-prev,
.gallery-lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: rgba(15, 23, 42, 0.75);
  color: #f9fafb;
  border-radius: 999px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-lightbox-close {
  top: 12px;
  right: 12px;
  transform: none;
}

.gallery-lightbox-prev {
  left: -46px;
}

.gallery-lightbox-next {
  right: -46px;
}

/* Остальная часть страницы товара */
.product-page-price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 16px 0 20px;
}

.product-price-label {
  color: var(--color-text-muted);
}

.product-specs ul {
  padding-left: 0;
}

.product-specs li {
  font-size: 14px;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.product-specs strong {
  font-weight: 600;
}

.product-description p {
  font-size: 14px;
  color: var(--color-text-muted);
}

.product-description h2,
.product-specs h2 {
  font-size: 18px;
  margin: 16px 0 10px;
}

.back-link {
  margin-top: 18px;
}

/* Страница "О нас" */
.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 32px;
  align-items: flex-start;
  margin-top: 16px;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.about-image img {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

/* Цифры */
.stats-section {
  padding-top: 32px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 12px;
}

.stat-card {
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.stat-value {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* Контакты */
.contacts-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 32px;
  margin-top: 16px;
}

.contacts-list li {
  font-size: 14px;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.contacts-list strong {
  font-weight: 600;
}

.map-placeholder {
  margin-top: 12px;
}

.map-placeholder-inner {
  height: 260px;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--color-border);
  background: repeating-linear-gradient(
    -45deg,
    #f3f4f6,
    #f3f4f6 6px,
    #e5e7eb 6px,
    #e5e7eb 12px
  );
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 14px;
}

/* Подвал */
.site-footer {
  margin-top: 40px;
  padding: 28px 0 18px;
  background-color: #111827;
  color: #e5e7eb;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 26px;
  margin-bottom: 18px;
}

.site-footer h3,
.site-footer h4 {
  margin-top: 0;
  margin-bottom: 8px;
  color: #f9fafb;
}

.site-footer p,
.footer-contacts li {
  font-size: 13px;
  color: #9ca3af;
}

.footer-socials {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-socials a {
  font-size: 13px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid #4b5563;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.footer-socials a:hover {
  background-color: #111827;
  border-color: #9ca3af;
  color: #f9fafb;
}

.footer-bottom {
  border-top: 1px solid #1f2933;
  padding-top: 10px;
  font-size: 12px;
  color: #6b7280;
}

/* Адаптивность */
@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .about-short,
  .about-layout,
  .product-page,
  .contacts-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .about-short-image,
  .about-image,
  .product-page-media {
    order: -1;
  }
}

@media (max-width: 768px) {
  .header-container {
    grid-template-columns: auto auto;
    height: 60px;
  }

  .nav-toggle {
    display: inline-flex;
    justify-self: end;
  }

  .main-nav {
    position: fixed;
    inset: 60px 12px auto 12px;
    background-color: #ffffff;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    padding: 12px 14px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

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

  body.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  body.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }
  body.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .hero {
    padding-top: 32px;
  }

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

  .hero-image {
    max-width: 100%;
    margin-top: 12px;
    justify-self: stretch;
  }

  .section {
    padding: 36px 0;
  }

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

  .gallery-lightbox-prev {
    left: 8px;
  }

  .gallery-lightbox-next {
    right: 8px;
  }
}

@media (max-width: 480px) {
  .logo img {
    width: 34px;
    height: 34px;
  }

  .hero-text h1 {
    font-size: 26px;
  }

  .section-title {
    font-size: 22px;
  }

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