:root {
  --bg: #f6f4f1;
  --surface: #ffffff;
  --surface-muted: #fbfaf8;
  --text: #171717;
  --text-muted: #5f5a54;
  --border: #e7e0d8;
  --accent: #c2252a;
  --accent-dark: #971b1f;
  --success: #1e8a53;
  --warning: #b7791f;
  --shadow: 0 18px 45px rgba(20, 17, 12, 0.08);
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --container: 1240px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #faf8f5 0%, var(--bg) 100%);
}

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

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

.store-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(250, 248, 245, 0.92);
  border-bottom: 1px solid rgba(23, 23, 23, 0.06);
}

.site-header__inner,
.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-header__inner {
  min-height: 82px;
}

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

.site-logo img {
  width: auto;
  max-height: 44px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.site-main {
  flex: 1;
  padding: 32px 0 72px;
}

.hero-card,
.catalog-card,
.product-card,
.info-card,
.description-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.breadcrumbs span {
  opacity: 0.65;
}

.product-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 28px;
  align-items: start;
}

.product-card,
.info-card,
.description-card,
.catalog-card {
  padding: 24px;
}

.product-gallery {
  display: grid;
  gap: 16px;
}

.product-gallery__hero {
  background: linear-gradient(180deg, #f8f8f8 0%, #f1eeea 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  min-height: 460px;
  display: grid;
  place-items: center;
}

.product-gallery__hero img {
  width: 100%;
  max-width: 560px;
  max-height: 560px;
  object-fit: contain;
}

.product-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(82px, 1fr));
  gap: 12px;
}

.product-thumbs button {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
  cursor: pointer;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.product-thumbs button.is-active,
.product-thumbs button:hover,
.product-thumbs button:focus-visible {
  border-color: rgba(194, 37, 42, 0.35);
  box-shadow: 0 0 0 3px rgba(194, 37, 42, 0.08);
  transform: translateY(-1px);
}

.product-thumbs img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}

.product-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
}

.badge--stock {
  background: rgba(30, 138, 83, 0.12);
  color: var(--success);
}

.badge--soldout {
  background: rgba(183, 121, 31, 0.14);
  color: var(--warning);
}

.badge--type {
  background: rgba(23, 23, 23, 0.06);
  color: var(--text);
}

.product-title {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 2.7rem);
  line-height: 1.08;
}

.product-subtitle {
  margin: 14px 0 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.price-box {
  margin-top: 24px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #fff 0%, #fcfaf7 100%);
}

.price-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.price-current {
  font-size: clamp(2rem, 4vw, 2.85rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}

.price-compare {
  color: var(--text-muted);
  text-decoration: line-through;
  font-size: 1rem;
}

.price-installment,
.price-note {
  margin: 12px 0 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 24px rgba(194, 37, 42, 0.22);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--accent-dark);
}

.button--secondary {
  border-color: var(--border);
  background: #fff;
  color: var(--text);
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.spec-item {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-muted);
}

.spec-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.section-title {
  margin: 0 0 18px;
  font-size: 1.3rem;
}

.product-description {
  color: #2d2b29;
  line-height: 1.75;
}

.product-description p:first-child {
  margin-top: 0;
}

.product-description p:last-child {
  margin-bottom: 0;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.tag {
  padding: 8px 12px;
  border-radius: 999px;
  background: #f2ede7;
  color: #473e35;
  font-size: 0.88rem;
}

.catalog-hero {
  padding: 32px;
  margin-bottom: 26px;
}

.catalog-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.02;
}

.catalog-hero p {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--text-muted);
  line-height: 1.7;
}

.catalog-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  margin: 0 0 24px;
}

.catalog-toolbar input,
.catalog-toolbar select {
  width: 100%;
  min-height: 50px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}

.catalog-item {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
}

.catalog-item__image {
  background: linear-gradient(180deg, #faf9f7 0%, #f1ede8 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.catalog-item__image img {
  max-height: 100%;
  object-fit: contain;
}

.catalog-item__title {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.35;
}

.catalog-item__meta {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.catalog-item__price {
  font-size: 1.45rem;
  font-weight: 800;
  color: #000;
}

.catalog-item__price-group {
  display: grid;
  gap: 4px;
}

.catalog-item__compare {
  color: var(--text-muted);
  text-decoration: line-through;
  font-size: 0.98rem;
}

.catalog-item__footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.site-footer {
  padding: 24px 0 34px;
  border-top: 1px solid rgba(23, 23, 23, 0.08);
  background: #fbfaf7;
}

.site-footer__inner {
  align-items: flex-start;
}

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

.site-footer__column h2 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.site-footer__nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
  color: var(--text-muted);
}

.site-footer__nav a {
  color: inherit;
  text-decoration: none;
}

.site-footer__nav a:hover,
.site-footer__nav a:focus-visible {
  color: var(--text);
}

.site-footer__bottom {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(23, 23, 23, 0.08);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.site-footer__copy {
  color: var(--text-muted);
  line-height: 1.6;
}

.site-footer__contact {
  display: grid;
  gap: 6px;
  color: var(--text-muted);
  text-align: right;
}

.empty-state {
  padding: 28px;
  text-align: center;
  color: var(--text-muted);
}

@media (max-width: 960px) {
  .product-layout,
  .catalog-toolbar,
  .site-footer__inner {
    grid-template-columns: 1fr;
    display: grid;
  }

  .site-header__inner {
    min-height: 74px;
  }

  .site-nav {
    display: none;
  }

  .spec-grid {
    grid-template-columns: 1fr;
  }

  .site-footer__contact {
    text-align: left;
  }

  .site-footer__grid,
  .site-footer__bottom {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .site-main {
    padding-top: 20px;
    padding-bottom: 56px;
  }

  .product-card,
  .info-card,
  .description-card,
  .catalog-card,
  .catalog-hero {
    padding: 18px;
  }

  .product-gallery__hero {
    min-height: 320px;
    padding: 18px;
  }

  .site-footer__grid,
  .site-footer__bottom {
    grid-template-columns: 1fr;
  }


  .price-current {
    font-size: 2rem;
  }
}