/* ========================================
   TRADING 2D – Page-Specific Styles
   Product, Catalog, Home page layouts
   (Inline styles are forbidden – see CSS_Tokens_Handbook)
   ======================================== */

/* ---- SHARED PAGE UTILITIES ---- */

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

.breadcrumbs-alt {
  padding: var(--sp-md) 0;
  margin-bottom: 0;
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--border-color);
}

.breadcrumbs-alt .breadcrumbs-list {
  font-size: var(--fs-base);
}

.no-results {
  grid-column: 1 / -1;
}

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

.product-main-section {
  padding: var(--sp-xl) 0 var(--sp-2xl);
}

.product-layout {
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-2xl);
}

/* Gallery */
.product-gallery-main {
  display: block;
  width: 100%;
  margin-bottom: var(--sp-lg);
  padding: 0;
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background-color: var(--color-bg-alt);
  color: inherit;
  font: inherit;
  cursor: zoom-in;
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
}

.product-gallery-main:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.product-gallery-main img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  display: block;
  transition: opacity var(--duration-base) var(--easing-ease-out);
}

.product-gallery-main img.is-switching {
  opacity: 0;
}

.product-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-md);
}

.gallery-thumb {
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  background: none;
  transition: border-color var(--duration-base) var(--easing-ease),
    box-shadow var(--duration-base) var(--easing-ease);
}

.gallery-thumb img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.gallery-thumb:hover {
  border-color: var(--color-border-dark);
}

.gallery-thumb.active {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

/* Info column */
.product-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  margin-bottom: var(--sp-lg);
  flex-wrap: wrap;
}

/* NOTE: rating is informational, not a call-to-action –
   keep it neutral so the accent color stays reserved for price + CTA button */
.product-rating {
  font-size: var(--fs-base);
  color: var(--color-text-secondary);
}

.product-meta-item {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
}

.product-status {
  margin-bottom: var(--sp-lg);
}

.product-price-block {
  margin-bottom: var(--sp-2xl);
}

.product-price {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  margin-bottom: var(--sp-sm);
}

.product-price-old {
  font-size: var(--fs-lg);
  color: var(--color-text-light);
  text-decoration: line-through;
  margin-left: var(--sp-md);
}

/* Savings is a positive confirmation, not a CTA – use success, not accent */
.product-savings {
  font-size: var(--fs-sm);
  color: var(--color-success);
}

.product-modifications {
  margin-bottom: var(--sp-2xl);
}

.color-swatches {
  display: flex;
  gap: var(--sp-md);
  flex-wrap: wrap;
}

.color-btn {
  width: 40px;
  height: 40px;
  border: var(--border-medium) solid var(--color-text-primary);
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--duration-base) var(--easing-ease),
    box-shadow var(--duration-base) var(--easing-ease),
    border-color var(--duration-base) var(--easing-ease);
  /* background-color is set inline per-color from product data (dynamic value, not a design token) */
}

.color-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.color-btn.active {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 30%, transparent);
}

.size-swatches {
  display: flex;
  gap: var(--sp-sm);
  flex-wrap: wrap;
}

.size-btn {
  padding: var(--sp-sm) var(--sp-md);
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: transparent;
  cursor: pointer;
  transition: border-color var(--duration-base) var(--easing-ease),
    background-color var(--duration-base) var(--easing-ease),
    color var(--duration-base) var(--easing-ease);
}

.size-btn:hover {
  border-color: var(--color-text-primary);
}

.size-btn.active {
  background-color: var(--color-text-primary);
  color: var(--color-white);
  border-color: var(--color-text-primary);
}

.product-quantity-block {
  margin-bottom: var(--sp-2xl);
}

.product-quantity-row {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  margin-bottom: var(--sp-lg);
}

.qty-label {
  margin: 0;
}

.qty-control {
  display: inline-flex;
  align-items: stretch;
  height: 44px;
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-card);
  overflow: hidden;
  vertical-align: middle;
}

.qty-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 44px;
  width: 44px;
  min-height: 44px;
  padding: 0;
  margin: 0;
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--fs-lg);
  line-height: 1;
  color: var(--text-main);
  -webkit-tap-highlight-color: transparent;
  outline: none;
}

.qty-btn:first-child {
  border-right: var(--border-thin) solid var(--color-border);
}

.qty-btn:last-child {
  border-left: var(--border-thin) solid var(--color-border);
}

.qty-input {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 52px;
  width: 52px;
  min-width: 52px;
  height: 100%;
  padding: 0;
  margin: 0;
  border: none;
  background-color: var(--bg-card);
  text-align: center;
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  line-height: 1;
  outline: none;
  -moz-appearance: textfield;
  appearance: textfield;
}

.qty-input[type="number"]::-webkit-outer-spin-button,
.qty-input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.qty-control:focus-within {
  border-color: var(--btn-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--btn-primary) 10%, transparent);
}

@media (hover: hover) and (pointer: fine) {
  .qty-btn:hover:not(:disabled) {
    background-color: var(--color-bg-alt);
  }
}

.qty-btn:active:not(:disabled) {
  background-color: var(--border-color);
}

.product-secondary-actions {
  display: flex;
  gap: var(--sp-md);
}

.product-secondary-actions .btn {
  min-height: 48px;
  padding: var(--sp-sm) var(--sp-lg);
}

.product-secondary-actions .btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---- SHARE TOAST ----
   Легке підтвердження після копіювання посилання (десктоп, без Web Share API). */
.share-toast {
  position: fixed;
  left: 50%;
  bottom: var(--sp-xl);
  transform: translate(-50%, 12px);
  z-index: var(--z-modal);
  padding: var(--sp-sm) var(--sp-lg);
  background-color: var(--btn-primary);
  color: var(--text-on-dark);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out),
    transform var(--duration-base) var(--ease-out);
}

.share-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (prefers-reduced-motion: reduce) {
  .share-toast {
    transition: opacity var(--duration-fast) linear;
    transform: translate(-50%, 0);
  }
}

.product-shipping-info {
  padding: var(--sp-lg);
  background-color: var(--color-bg-alt);
  border-radius: var(--border-radius-md);
  font-size: var(--fs-sm);
}

.shipping-row {
  display: flex;
  justify-content: space-between;
  padding-bottom: var(--sp-md);
  margin-bottom: var(--sp-md);
  border-bottom: var(--border-thin) solid var(--color-border);
}

.shipping-row:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

/* Description & specs */
.product-details-grid {
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-2xl);
  margin-top: var(--sp-3xl);
  padding-top: var(--sp-2xl);
  border-top: var(--border-thin) solid var(--color-border);
}

.table-compact {
  font-size: var(--fs-sm);
}

.spec-label {
  font-weight: var(--fw-semibold);
}

/* ============================================================
   CATALOG PAGE
   ============================================================ */

.catalog-layout {
  grid-template-columns: minmax(280px, 320px) 1fr;
  gap: var(--sp-2xl);
  align-items: start;
  min-width: 0;
}

.catalog-filters-toggle,
.sidebar-mobile-header,
.sidebar-backdrop {
  display: none;
}

@media (min-width: 769px) {
  .catalog-layout .sidebar {
    position: sticky;
    top: calc(var(--header-height-mobile) + var(--sp-md));
    max-height: calc(100dvh - var(--header-height-mobile) - var(--sp-xl));
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-dark) transparent;
    min-width: 0;
  }

  .catalog-layout .sidebar::-webkit-scrollbar {
    width: 6px;
  }

  .catalog-layout .sidebar::-webkit-scrollbar-thumb {
    background-color: var(--color-border-dark);
    border-radius: 999px;
  }
}

.sidebar-section--categories {
  margin-bottom: var(--sp-md);
  min-width: 0;
}

.category-search-input {
  width: 100%;
  min-width: 0;
  margin-bottom: var(--sp-sm);
  font-size: 16px;
  padding: var(--sp-sm) var(--sp-md);
}

.category-nav {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: var(--border-thin) solid var(--border-color);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  background-color: var(--bg-card);
}

.category-acc {
  min-width: 0;
  border-bottom: var(--border-thin) solid var(--border-color);
}

.category-acc:last-of-type {
  border-bottom: none;
}

.category-acc-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-sm);
  min-height: 44px;
  padding: 10px 12px;
  cursor: pointer;
  list-style: none;
  color: var(--color-text-primary);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  line-height: 1.35;
  -webkit-tap-highlight-color: transparent;
}

.category-acc-summary::-webkit-details-marker,
.category-acc-summary::marker {
  display: none;
}

.category-acc-label {
  flex: 1;
  min-width: 0;
  overflow-wrap: break-word;
}

.category-acc-chevron {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-right: 4px;
  border-right: 1.5px solid var(--color-text-light);
  border-bottom: 1.5px solid var(--color-text-light);
  transform: rotate(45deg);
  transition: transform var(--duration-base) var(--easing-ease);
}

.category-acc[open] > .category-acc-summary .category-acc-chevron {
  transform: rotate(-135deg);
}

.category-acc:has(.is-active) > .category-acc-summary {
  color: var(--color-accent);
}

.category-acc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  background-color: var(--color-bg-alt);
}

.category-acc-list li {
  min-width: 0;
}

.category-acc-link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--color-text-primary);
  font-size: var(--fs-sm);
  line-height: 1.35;
  text-decoration: none;
  overflow-wrap: break-word;
  border-bottom: var(--border-thin) solid var(--border-color);
  -webkit-tap-highlight-color: transparent;
}

.category-nav > .category-acc-link:last-of-type {
  border-bottom: none;
}

.category-acc-link--child {
  padding-left: 32px;
  border-bottom-color: color-mix(in srgb, var(--border-color) 70%, transparent);
}

.category-acc-list li:last-child .category-acc-link--child {
  border-bottom: none;
}

.category-acc-link.is-active {
  color: var(--color-accent);
  font-weight: var(--fw-medium);
  background-color: var(--color-accent-light);
}

.category-acc-link:focus-visible,
.category-acc-summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

@media (hover: hover) and (pointer: fine) {
  .category-acc-link:hover,
  .category-acc-summary:hover {
    color: var(--color-accent);
    background-color: var(--color-accent-light);
  }
}

.category-search-empty {
  padding: var(--sp-md);
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}

.category-search-results {
  list-style: none;
  margin: var(--sp-sm) 0 0;
  padding: 0;
  max-height: 240px;
  overflow-x: hidden;
  overflow-y: auto;
  border: var(--border-thin) solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-card);
  min-width: 0;
}

.category-search-results .category-child-link {
  display: block;
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: none;
  background: none;
  color: var(--color-text-primary);
  font: inherit;
  font-size: var(--fs-sm);
  line-height: 1.35;
  text-align: left;
  overflow-wrap: break-word;
  cursor: pointer;
}

@media (hover: hover) and (pointer: fine) {
  .category-search-results .category-child-link:hover {
    color: var(--color-accent);
    background-color: var(--color-accent-light);
  }
}

.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;
}

.catalog-title {
  font-size: var(--fs-3xl);
}

.catalog-page {
  padding: var(--sp-xl) 0 var(--sp-2xl);
}

.catalog-empty {
  padding: var(--sp-2xl);
  text-align: center;
  background-color: var(--bg-card);
  border: var(--border-thin) solid var(--border-color);
  border-radius: 4px;
}

.catalog-empty p {
  margin-bottom: var(--sp-lg);
  color: var(--color-text-secondary);
}

.catalog-grid {
  margin-bottom: var(--sp-2xl);
}

.category-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-list li {
  margin-bottom: var(--sp-sm);
}

.category-list li:last-child {
  margin-bottom: 0;
}

.category-link {
  display: flex;
  align-items: center;
  padding: var(--sp-xs) var(--sp-sm);
  margin: 0 calc(var(--sp-sm) * -1);
  min-height: 44px;
  color: var(--color-text-primary);
  text-decoration: none;
  border-radius: var(--border-radius-sm);
  transition: color var(--duration-base) var(--easing-ease),
    background-color var(--duration-base) var(--easing-ease);
}

.category-link:hover {
  color: var(--color-accent);
  background-color: color-mix(in srgb, var(--btn-primary) 6%, var(--bg-card));
}

.category-link.active {
  color: var(--color-accent);
  font-weight: var(--fw-medium);
  background-color: var(--color-accent-light);
  border-radius: 6px;
  padding: var(--sp-sm) var(--sp-md);
  margin: 0 calc(var(--sp-md) * -1);
}

.category-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.catalog-filters {
  display: flex;
  flex-direction: column;
}

.catalog-filters-submit {
  width: 100%;
  padding: 12px;
  margin-top: var(--sp-md);
  white-space: normal;
  letter-spacing: var(--ls-normal);
  line-height: var(--lh-tight);
  text-align: center;
  border: none;
  background-color: var(--btn-primary);
  color: var(--text-on-dark);
  font-weight: var(--fw-semibold);
  border-radius: 4px;
}

.catalog-price-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.catalog-price-input {
  min-width: 0;
}

.catalog-price-input[type="number"]::-webkit-outer-spin-button,
.catalog-price-input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.catalog-price-input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

.catalog-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.catalog-checkbox {
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin: 0;
  flex-shrink: 0;
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--border-radius-sm);
  accent-color: var(--color-accent);
  cursor: pointer;
}

.catalog-checkbox-text {
  color: var(--color-text-primary);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
}

.price-range-input {
  width: 100%;
}

.price-range-row {
  display: flex;
  gap: var(--sp-md);
  margin-top: var(--sp-md);
}

.catalog-rating-filter {
  font-size: var(--fs-xs);
}

.catalog-rating-item {
  margin-bottom: var(--sp-md);
}

.catalog-sort-row {
  display: flex;
  gap: var(--sp-md);
  align-items: center;
}

.catalog-sort-select {
  max-width: 200px;
}

.product-thumb-wrap {
  position: relative;
  margin-bottom: var(--sp-md);
  overflow: hidden;
  border-radius: var(--border-radius-sm);
}

.product-thumb-wrap .card-product-image,
.product-thumb-wrap .demo-photo {
  margin-bottom: 0;
}

.product-thumb-wrap img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
}

.badge-corner-right,
.badge-corner-left {
  /* RULE-14: бейджі не мають перехоплювати кліки по картці під собою
     і не повинні розтягуватись довшим текстом за половину ширини картки. */
  pointer-events: none;
  max-width: 60%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge-corner-right {
  position: absolute;
  top: var(--sp-md);
  right: var(--sp-md);
}

.badge-corner-left {
  position: absolute;
  top: var(--sp-md);
  left: var(--sp-md);
}

/* Product rating in catalog cards – neutral, not accent (see Accent Rule) */
.product-card-rating {
  margin-bottom: var(--sp-sm);
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}

/* ============================================================
   INFO PAGES (Delivery, About, Legal)
   ============================================================ */

.info-page {
  padding: var(--sp-xl) 0 var(--sp-2xl);
}

.info-page-header {
  max-width: 38rem;
  margin-bottom: var(--sp-2xl);
  background-color: transparent;
  border: 0;
  box-shadow: none;
  position: static;
  z-index: auto;
  height: auto;
}

.info-page-header h1 {
  margin-bottom: var(--sp-md);
}

.info-page-lead {
  font-size: var(--fs-lg);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
}

.info-page-body {
  max-width: 38rem;
  overflow-wrap: anywhere;
  word-break: break-word;
  -webkit-text-size-adjust: 100%;
}

.info-page-body.prose {
  max-width: 38rem;
}

@media (max-width: 1024px) {
  .info-page-header,
  .info-page-body,
  .info-page-body.prose {
    max-width: none;
  }
}

@media (max-width: 768px) {
  .info-page {
    padding: var(--sp-lg) 0 max(var(--sp-xl), env(safe-area-inset-bottom));
  }

  .info-page-header {
    margin-bottom: var(--sp-lg);
  }

  .info-page-header h1 {
    font-size: var(--fs-2xl);
  }
}

.info-page-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-lg);
}

.info-card {
  background-color: var(--bg-card);
  border: var(--border-thin) solid var(--border-color);
  border-radius: 4px;
  padding: var(--sp-lg);
}

.info-card h2 {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-md);
}

.info-list {
  list-style: none;
  margin: 0 0 var(--sp-md);
  padding: 0;
}

.info-list li {
  position: relative;
  padding-left: var(--sp-lg);
  margin-bottom: var(--sp-md);
  line-height: var(--lh-relaxed);
}

.info-list li:last-child {
  margin-bottom: 0;
}

.info-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--btn-primary);
}

.info-card p:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .info-page-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   HOME PAGE
   ============================================================ */

.hero {
  position: relative;
  overflow: hidden;
  background-color: var(--bg-card);
  padding: var(--sp-3xl) 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.hero-banner {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
}

.hero--has-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--bg-main) 82%, transparent);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

/* RULE-15: CTA над фото — glassmorphism, не суцільна заливка.
   Значення взяті з дистильованого рішення 500a10 (05_System/Skills), адаптовані
   під монохромну палітру TRADING 2D замість білого скла на темному фото. */
.hero--has-banner .btn-primary {
  background: color-mix(in srgb, var(--btn-primary) 80%, transparent);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid color-mix(in srgb, var(--text-on-dark) 30%, transparent);
  transition: background-color 0.45s var(--ease-out), border-color 0.45s var(--ease-out);
}

.hero--has-banner .btn-primary:hover {
  background: var(--btn-primary);
}

.hero-subtitle {
  font-size: var(--fs-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--sp-2xl);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

.cta-section {
  background-color: var(--color-text-primary);
  color: var(--color-white);
  text-align: center;
  padding: var(--sp-3xl) 0;
}

.cta-section h2 {
  color: var(--color-white);
}

.cta-subtitle {
  color: var(--color-text-light);
  margin-bottom: var(--sp-2xl);
}

.newsletter-form {
  display: flex;
  max-width: 400px;
  margin: 0 auto;
  gap: var(--sp-sm);
}

.newsletter-input {
  background-color: var(--color-white);
  color: var(--color-text-primary);
}

.card-product-image-wrapper {
  position: relative;
  overflow: hidden;
}

.demo-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: var(--border-color);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--sp-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: var(--fs-sm);
}

.product-gallery-main .demo-photo {
  margin-bottom: 0;
  border-radius: 0;
}

/* ---- RESPONSIVE ---- */

@media (max-width: 768px) {
  .product-layout,
  .product-details-grid,
  .catalog-layout {
    /* Однакова специфічність (.class) з базовим правилом, але це оголошення
       йде пізніше у файлі — каскад вирішує пріоритет без !important */
    grid-template-columns: 1fr;
  }

  /* RULE-31/mobile: sidebar стає off-canvas drawer замість повного зникнення —
     фільтри залишаються доступними на мобільних (data-catalog-sidebar / catalog.js). */
  .catalog-layout .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(320px, 86vw);
    max-width: 86vw;
    z-index: var(--z-modal);
    background-color: var(--bg-card);
    padding: var(--sp-lg);
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--duration-base) var(--ease-out);
    box-shadow: var(--shadow-lg);
  }

  .catalog-layout .sidebar.is-open {
    transform: translateX(0);
  }

  .sidebar-mobile-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sp-lg);
    padding-bottom: var(--sp-md);
    border-bottom: var(--border-thin) solid var(--color-border);
  }

  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: var(--z-overlay);
    background: color-mix(in srgb, var(--text-main) 45%, transparent);
  }

  .sidebar-backdrop[hidden] {
    display: none;
  }

  .catalog-filters-toggle {
    display: inline-flex;
  }

  .catalog-results-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-md);
  }

  .catalog-sort-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-sm);
  }

  .hero {
    padding: var(--sp-2xl) 0;
  }

  .hero h1 {
    font-size: var(--fs-3xl);
  }

  .hero-subtitle {
    font-size: var(--fs-base);
  }
}

@media (max-width: 480px) {
  .hero {
    padding: var(--sp-lg) 0;
  }

  .hero h1 {
    font-size: var(--fs-2xl);
  }

  .newsletter-form {
    flex-direction: column;
  }

  .newsletter-form input,
  .newsletter-form button {
    width: 100%;
  }
}

/* ============================================================
   CART / CHECKOUT PAGES
   ============================================================ */

.cart-page,
.checkout-page {
  padding: var(--sp-xl) 0 var(--sp-2xl);
}

.cart-layout,
.checkout-layout {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 340px);
  gap: var(--sp-2xl);
  align-items: start;
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

.cart-item {
  display: grid;
  grid-template-columns: 88px 1fr auto auto auto;
  gap: var(--sp-md);
  align-items: center;
  padding: var(--sp-md);
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
}

.cart-item-image {
  width: 88px;
}

.cart-item-image .card-product-image,
.cart-item-image .demo-photo {
  margin-bottom: 0;
  aspect-ratio: 1 / 1;
}

.cart-item-info {
  display: flex;
  flex-direction: column;
  gap: var(--sp-xs);
  min-width: 0;
}

.cart-item-name {
  font-weight: var(--fw-semibold);
  color: var(--color-text-primary);
  text-decoration: none;
}

.cart-item-name:hover {
  color: var(--color-accent);
}

.cart-item-price {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}

.cart-item-qty-form .qty-control {
  display: inline-flex;
}

.cart-item-total {
  font-weight: var(--fw-bold);
  white-space: nowrap;
}

.cart-item-remove-form {
  display: flex;
}

.cart-summary {
  padding: var(--sp-lg);
  border: var(--border-thin) solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  position: sticky;
  top: calc(var(--header-height-mobile) + var(--sp-md));
}

.cart-summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--sp-sm);
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
}

.cart-summary-total {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  margin-top: var(--sp-md);
  padding-top: var(--sp-md);
  border-top: var(--border-thin) solid var(--color-border);
}

.cart-empty {
  text-align: center;
  padding: var(--sp-3xl) 0;
}

.cart-empty p {
  margin-bottom: var(--sp-lg);
  color: var(--color-text-secondary);
}

.checkout-section {
  margin-bottom: var(--sp-xl);
  padding-bottom: var(--sp-xl);
  border-bottom: var(--border-thin) solid var(--color-border);
}

.checkout-section:last-of-type {
  border-bottom: none;
}

.checkout-section h2 {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-md);
}

@media (max-width: 768px) {
  .cart-layout,
  .checkout-layout {
    grid-template-columns: 1fr;
  }

  .cart-item {
    grid-template-columns: 64px 1fr;
    grid-template-areas:
      "image info"
      "image qty"
      "total remove";
  }

  .cart-item-image { grid-area: image; width: 64px; }
  .cart-item-info { grid-area: info; }
  .cart-item-qty-form { grid-area: qty; }
  .cart-item-total { grid-area: total; }
  .cart-item-remove-form { grid-area: remove; justify-self: end; }

  .cart-summary {
    position: static;
  }
}