/* =========================================================
   ZARA CATALOG — DESIGN SYSTEM
   ========================================================= */

:root {
  /* Colors */
  --color-bg: #FFFFFF;
  --color-bg-secondary: #F7F7F7;
  --color-text: #111111;
  --color-text-secondary: #555555;
  --color-text-muted: #555555;
  --color-text-placeholder: #999999;
  --color-icon-muted: #777777;
  --color-border: #EAEAEA;
  --color-discount: #D40000;
  --color-card-bg: #FAFAFA;

  /* Typography */
  --font-main: "Helvetica Neue", Inter, Arial, sans-serif;

  --fs-h1: 32px;
  --fs-product-name: 17px;
  --fs-description: 16px;
  --fs-price: 18px;
  --fs-menu: 16px;
  --fs-subcategory: 14px;
  --fs-button: 16px;
  --fs-old-price: 14px;
  --fs-footer: 13px;

  --lh-tight: 1.1;
  --lh-normal: 1.231;
  --lh-loose: 1.5;
  --ls-caps: 0.05em;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 80px;

  /* Components */
  --height-search: 48px;
  --height-input: 52px;
  --height-button: 52px;
  --radius: 0px;
  --transition: 180ms ease;
}

/* =========================================================
   RESET
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  font-size: var(--fs-description);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
}

.catalog-main,
.product-swipe {
  flex: 1 0 auto;
}

.site-footer {
  flex-shrink: 0;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
}

ul, ol {
  list-style: none;
}

input {
  font-family: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

.container {
  width: 100%;
  padding: 0 20px;
}

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

/* =========================================================
   STICKY HEADER STACK (search + categories + subcategories)
   ========================================================= */

.site-sticky {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  /* Forces WebKit to keep this on its own stable compositing layer so it
     doesn't repaint/flicker when a sibling's height changes (iOS Safari &
     iOS Chrome, both WebKit, repaint sticky elements on flex-height changes
     far more visibly than Blink/Android does). */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

/* =========================================================
   SEARCH
   ========================================================= */

.catalog-search {
  padding: var(--space-3) 20px var(--space-2);
  background: var(--color-bg);
}

.catalog-search__field {
  position: relative;
  height: var(--height-search);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
}

.catalog-search__icon {
  width: 18px;
  height: 18px;
  margin: 0 var(--space-3);
  color: var(--color-icon-muted);
  flex-shrink: 0;
}

.catalog-search__input {
  flex: 1;
  height: 100%;
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text);
}

.catalog-search__input::placeholder {
  color: var(--color-text-placeholder);
}

.catalog-search__results {
  display: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}

.catalog-search__results.is-open {
  display: block;
  animation: searchResultsIn 250ms ease-out;
}

@keyframes searchResultsIn {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   CATEGORIES (horizontal scroll, single row)
   ========================================================= */

.categories-nav {
  display: flex;
  overflow-x: auto;
  flex-wrap: nowrap;
  gap: var(--space-6);
  padding: var(--space-4) 20px 10px;
  scrollbar-width: none;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.categories-nav::-webkit-scrollbar {
  display: none;
}

.categories-nav__item {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text);
  padding-bottom: 10px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
  flex-shrink: 0;
}

.categories-nav__item.is-active {
  border-bottom-color: var(--color-text);
}

/* =========================================================
   SUBCATEGORIES (horizontal scroll, second row)
   ========================================================= */

.subcategories-nav {
  display: flex;
  overflow-x: auto;
  flex-wrap: nowrap;
  gap: var(--space-2);
  padding: 8px 20px 12px;
  scrollbar-width: none;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.subcategories-nav::-webkit-scrollbar {
  display: none;
}

.subcategories-nav__item {
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition), color var(--transition);
  flex-shrink: 0;
}

.subcategories-nav__item.is-active {
  color: var(--color-text);
  border-color: var(--color-text);
}

/* =========================================================
   BRANDS (horizontal scroll filter row)
   ========================================================= */

.brands-nav {
  display: flex;
  overflow-x: auto;
  flex-wrap: nowrap;
  gap: 32px;
  padding: 4px 20px 14px;
  scrollbar-width: none;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.brands-nav::-webkit-scrollbar {
  display: none;
}

.brands-nav__item {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--color-text-muted);
  padding-bottom: 6px;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
  flex-shrink: 0;
}

.brands-nav__item.is-active {
  border-bottom-color: var(--color-text-muted);
}

/* =========================================================
   PRODUCT GRID (catalog)
   ========================================================= */

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: var(--space-3);
  row-gap: var(--space-6);
  padding: var(--space-4) 20px var(--space-7);
}

/* =========================================================
   PRODUCT CARD
   ========================================================= */

.product-card {
  min-width: 0;
  opacity: 0;
  transition: opacity 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.product-card.is-visible {
  opacity: 1;
}

.product-card__image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1.1;
  background: var(--color-bg-secondary);
}

.product-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 700ms cubic-bezier(0.22, 1, 0.36, 1), transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.product-card.is-visible .product-card__image {
  opacity: 1;
  transform: scale(1);
}

/* Swipeable gallery inside a catalog card: a horizontal track of full-size
   slides the user can drag through with a finger, with dots showing
   position — only rendered when a product has more than one photo. */
.product-card__image-track {
  display: flex;
  width: 100%;
  height: 100%;
  touch-action: pan-y;
  will-change: transform;
}

.product-card__image-track .product-card__image {
  flex-shrink: 0;
}

.product-card__dots {
  position: absolute;
  bottom: var(--space-2);
  left: 0;
  right: 0;
  z-index: 3;
  display: flex;
  justify-content: center;
  gap: var(--space-1);
  pointer-events: none;
}

.product-card__dot {
  width: 5px;
  height: 5px;
  background: rgba(255, 255, 255, 0.6);
  transition: background var(--transition);
}

.product-card__dot.is-active {
  background: #FFFFFF;
}

.product-card__info {
  padding-top: var(--space-2);
}

.product-card__name {
  font-size: var(--fs-product-name);
  font-weight: 400;
  line-height: 23px;
  text-transform: uppercase;
  color: var(--color-text);
  margin-bottom: var(--space-1);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-card__price {
  font-size: var(--fs-old-price);
  font-weight: 400;
  color: var(--color-text-secondary);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-2);
}

.product-card__price--old {
  font-size: var(--fs-old-price);
  font-weight: 400;
  text-decoration: line-through;
  color: var(--color-text-secondary);
}

.product-card__price--discount {
  color: var(--color-discount);
}

.product-card__discount {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  margin-top: var(--space-1);
  padding: 2px var(--space-2);
  background: var(--color-discount);
  color: #FFFFFF;
  width: fit-content;
}

.product-card__discount-percent {
  font-size: var(--fs-old-price);
  font-weight: 500;
}

.product-card__discount-price {
  font-size: 12px;
  font-weight: 500;
}

.product-card__actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.contact-btn {
  flex: 1;
  height: var(--height-button);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border: 1px solid var(--color-text);
  border-radius: var(--radius);
  color: var(--color-text);
  transition: background var(--transition), color var(--transition);
}

.contact-btn svg {
  width: 22px;
  height: 22px;
}

.contact-btn svg.icon-stroke {
  stroke: currentColor;
  fill: none;
}

.contact-btn svg.icon-fill {
  fill: currentColor;
  stroke: none;
}

.contact-btn .icon-img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.contact-btn:hover,
.contact-btn:active {
  background: var(--color-text);
  color: var(--color-bg);
}

/* =========================================================
   PRODUCT SWIPE (prev/next product drag track)
   ========================================================= */

.product-swipe {
  overflow: hidden;
  /* Isolate this subtree's layout so swapping it for a new product (likely
     a different page height) doesn't force WebKit to recompute/repaint the
     sticky header above it on the same frame. */
  contain: layout style;
}

.product-swipe__track {
  display: flex;
  width: 300%;
  transform: translateX(-33.3333%);
  touch-action: pan-y;
  will-change: transform;
}

.product-swipe__slide {
  width: 33.3333%;
  flex-shrink: 0;
  min-height: 100px;
}

/* =========================================================
   PRODUCT PAGE
   ========================================================= */

.product-page {
  padding-bottom: var(--space-7);
}

.product-main {
  padding: var(--space-4) 20px;
}

.product-back {
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--space-3);
  color: var(--color-text-placeholder);
}

.product-back svg {
  width: 44px;
  height: 12px;
  flex-shrink: 0;
}

.product-main__image {
  width: 100%;
  aspect-ratio: 1 / 1.1;
  object-fit: cover;
  background: var(--color-bg-secondary);
  margin-bottom: var(--space-5);
}

.product-main__name {
  font-size: 20px;
  font-weight: 300;
  line-height: var(--lh-tight);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.product-main__price {
  font-size: var(--fs-price);
  font-weight: 400;
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.product-main__price--old {
  font-size: 14px;
  font-weight: 400;
  text-decoration: line-through;
  color: var(--color-text-secondary);
}

.product-main__price--discount {
  color: var(--color-discount);
}

.product-main .product-card__discount {
  margin-bottom: var(--space-5);
}

.product-main__brand {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.product-main__contact-label {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.product-main__actions {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.product-description {
  margin-bottom: var(--space-5);
}

.product-description__text {
  font-size: var(--fs-description);
  color: var(--color-text);
  line-height: 27px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  transition: max-height var(--transition);
}

.product-description.is-expanded .product-description__text {
  display: block;
  -webkit-line-clamp: unset;
  overflow: visible;
}

.product-description__toggle {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--fs-description);
  color: var(--color-text);
  text-decoration: underline;
}

.product-description__toggle-less {
  display: none;
}

.product-description.is-expanded .product-description__toggle-more {
  display: none;
}

.product-description.is-expanded .product-description__toggle-less {
  display: inline;
}

/* =========================================================
   PRODUCT GALLERY STACK (images, one below another)
   ========================================================= */

.product-gallery-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.product-gallery-stack__image {
  width: 100%;
}

/* =========================================================
   RELATED PRODUCTS
   ========================================================= */

.related-products {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
}

.related-products__title {
  font-size: var(--fs-subcategory);
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: var(--ls-caps);
  padding: 0 20px;
  margin-bottom: var(--space-4);
}

.related-products__scroll {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  overflow-y: hidden;
  gap: var(--space-3);
  padding: 0 20px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.related-products__scroll::-webkit-scrollbar {
  display: none;
}

.related-products__track {
  display: flex;
  flex-wrap: nowrap;
  flex-shrink: 0;
  gap: var(--space-3);
}

.related-products__scroll .product-card {
  width: 200px;
  flex-shrink: 0;
}

/* =========================================================
   FOOTER
   ========================================================= */

.site-footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-5) 20px;
  text-align: center;
}

.site-footer__social {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}

.site-footer__social a svg {
  width: 24px;
  height: 24px;
}

.site-footer__social a svg.icon-stroke {
  stroke: var(--color-text);
  fill: none;
}

.site-footer__social a svg.icon-fill {
  fill: var(--color-text);
  stroke: none;
}

.site-footer__social a .icon-img {
  width: 24px;
  height: 24px;
  object-fit: contain;
}

.site-footer__credit {
  font-size: var(--fs-footer);
  color: var(--color-text-secondary);
}

.site-footer__credit a {
  text-decoration: underline;
}

/* =========================================================
   EMPTY / NO RESULTS
   ========================================================= */

.catalog-empty {
  padding: var(--space-7) 20px;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: var(--fs-description);
}

/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {
  .product-card,
  .product-card__image,
  .categories-nav__item,
  .subcategories-nav__item {
    transition: none !important;
    animation: none !important;
  }
  .product-card {
    opacity: 1;
  }
  .product-card__image {
    opacity: 1;
    transform: none;
  }
}

/* =========================================================
   MOBILE: compact search + tighter sticky stack
   ========================================================= */

@media (max-width: 767px) {
  .catalog-search {
    padding: 10px 32px 6px;
  }

  .catalog-search__field {
    height: 40px;
  }

  .catalog-search__icon {
    margin: 0 12px;
  }

  .categories-nav {
    padding-top: 8px;
  }

  .product-grid {
    padding-top: 12px;
  }
}

/* =========================================================
   DESKTOP (progressive enhancement, mobile-first base)
   ========================================================= */

@media (min-width: 768px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    padding: var(--space-5) 40px var(--space-8);
  }

  .categories-nav,
  .subcategories-nav,
  .catalog-search {
    padding-left: 40px;
    padding-right: 40px;
  }

  .categories-nav,
  .subcategories-nav {
    gap: var(--space-6);
    justify-content: center;
  }

  .brands-nav {
    justify-content: center;
  }

  .catalog-search__field {
    max-width: 480px;
    margin: 0 auto;
  }

  .catalog-search__results {
    max-width: 480px;
    margin: 0 auto;
  }

  /* The dropdown stays capped at 480px above, but .product-grid still picks
     up the 3/4/5-column rules meant for the full-width catalog grid at this
     and wider breakpoints — squeezing cards until names/prices wrap badly.
     Pin it back to 2 columns here so the search dropdown always matches its
     own (narrow) container instead of the page-level grid. */
  .catalog-search__results .product-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: none;
    margin: 0;
    padding: var(--space-3) 20px var(--space-4);
  }

  .product-main {
    padding-left: 40px;
    padding-right: 40px;
  }

  .related-products__title,
  .related-products__scroll {
    padding-left: 40px;
    padding-right: 40px;
  }

  .site-footer {
    padding: var(--space-6) 40px;
  }
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(4, 1fr);
    max-width: 1400px;
    margin: 0 auto;
  }

  .categories-nav,
  .subcategories-nav {
    max-width: 1400px;
    margin: 0 auto;
  }

  .related-products__scroll {
    max-width: 1400px;
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
  }

  .related-products__title {
    max-width: 1400px;
    margin: 0 auto var(--space-4);
  }

  .related-products__scroll .product-card {
    width: 240px;
  }

  .site-footer {
    max-width: 1400px;
    margin: 0 auto;
  }

  .product-page {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-6) 40px 0;
  }

  .product-main {
    padding: 0;
  }

  .product-main__price {
    font-size: 18px;
  }

  .product-main__actions {
    max-width: 420px;
  }

  .related-products {
    width: 100%;
    margin-top: var(--space-6);
  }
}

@media (min-width: 1440px) {
  .product-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}