/* ============================================================
   BLOCK: Product — карточка товара
   Mobile: плитки 2×2, информация ниже, всё на всю ширину.
   Desktop: плитки 2×2 слева (65%), информация справа (31%), по макету.
   ============================================================ */

.product {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 3rem);
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1rem, 0.94vw, 2.5rem) clamp(3.5rem, 10vw, 5rem);
}

/* ---------- Плитки ---------- */
.product__gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.75rem, 1.146vw, 1.5rem);
}

.product__tile {
  position: relative;
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  aspect-ratio: 4 / 5;
  background: var(--c-surface);
}

button.product__tile {
  cursor: zoom-in;
}

.product__tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.product__tile--sea img {
  object-position: 42% center;
}

.product__tile--detail img {
  object-position: center;
}

@media (hover: hover) and (pointer: fine) {
  .product__tile:hover img {
    transform: scale(1.03);
  }
}

/* ---------- Информация ---------- */
.product__info {
  display: flex;
  flex-direction: column;
  gap: clamp(0.75rem, 1.2vw, 1.25rem);
  min-width: 0;
}

.product__category {
  font-size: clamp(0.875rem, 1vw, 1.125rem);
  color: var(--c-ink-2);
}

.product__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 3.6vw, 4.5rem);
  font-weight: 350;
  line-height: 1;
  letter-spacing: var(--tracking-tight);
}

.product__lead {
  max-width: 34ch;
  font-size: clamp(0.875rem, 0.9vw, 1.0625rem);
  line-height: 1.5;
}

.product__price {
  font-size: clamp(0.9375rem, 1vw, 1.125rem);
}

/* ---------- Вариации: выбор цвета ---------- */
.product__variants-head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-top: clamp(1rem, 2.5vw, 2rem);
  font-size: clamp(0.875rem, 0.9vw, 1rem);
}

.product__variants-label {
  color: var(--c-ink-2);
}

.product__variants {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(0.75rem, 0.73vw, 1rem);
  margin-top: clamp(0.75rem, 1.2vw, 1rem);
}

.product__variant {
  display: grid;
  gap: 0.5rem;
  justify-items: start;
  width: clamp(7.5rem, 10.4vw, 12rem);
  text-align: left;
}

.product__variant-thumb {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 200 / 228;
  background: var(--c-surface);
  outline: 1px solid transparent;
  outline-offset: 3px;
  transition: outline-color var(--dur-fast) var(--ease-out);
}

.product__variant-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}

.product__variant:hover .product__variant-thumb img {
  transform: scale(1.04);
}

.product__variant[aria-checked="true"] .product__variant-thumb {
  outline-color: var(--c-ink);
}

.product__variant-name {
  font-size: clamp(0.875rem, 0.95vw, 1.0625rem);
  color: var(--c-ink-2);
  transition: color var(--dur-fast) var(--ease-out);
}

.product__variant[aria-checked="true"] .product__variant-name {
  color: var(--c-ink);
}

.product__variant:focus-visible .product__variant-thumb {
  outline-color: var(--c-accent);
}

/* ---------- Кнопка ---------- */
.product__buy {
  width: 100%;
  min-height: 3.5rem;
  margin-top: clamp(1.5rem, 4vw, 3rem);
  padding: 0 1.5rem;
  background: var(--c-ink);
  color: var(--c-white);
  font-size: clamp(0.9375rem, 1.15vw, 1.25rem);
  transition: background var(--dur) var(--ease-out);
}

.product__buy:hover {
  background: var(--c-accent);
}

/* ---------- Аккордеон ---------- */
.product__care {
  margin-top: clamp(2.5rem, 5.5vw, 4rem);
  border-top: 1px solid var(--c-line);
}

.product__accordion {
  border-bottom: 1px solid var(--c-line);
}

.product__summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.75rem;
  padding-right: 2rem;
  font-size: clamp(1.0625rem, 1.25vw, 1.5rem);
  cursor: pointer;
  list-style: none;
}

.product__summary::-webkit-details-marker {
  display: none;
}

/* Плюс → минус при открытии */
.product__summary::after {
  content: "";
  position: absolute;
  right: 0.25rem;
  top: 50%;
  width: 0.875rem;
  height: 0.875rem;
  background:
    linear-gradient(currentColor, currentColor) center / 100% 1.5px no-repeat,
    linear-gradient(currentColor, currentColor) center / 1.5px 100% no-repeat;
  transform: translateY(-50%);
  transition: transform var(--dur) var(--ease-out);
}

.product__accordion[open] > .product__summary::after {
  transform: translateY(-50%) rotate(180deg);
  background:
    linear-gradient(currentColor, currentColor) center / 100% 1.5px no-repeat;
}

.product__answer {
  display: grid;
  gap: 0.75rem;
  padding-bottom: 1.5rem;
  max-width: 60ch;
  font-size: clamp(0.8125rem, 0.85vw, 0.9375rem);
  line-height: 1.55;
  color: var(--c-ink-2);
}

.product__answer ul {
  display: grid;
  gap: 0.5rem;
  padding-left: 1.25rem;
  list-style: disc;
}

.product__answer ul li {
  padding-left: 0.25rem;
}

/* ---------- Рекомендации: отступ от товара ---------- */
.catalog.catalog--recommend {
  padding: clamp(4rem, 9vw, 6rem) clamp(1rem, 0.94vw, 2.5rem) clamp(4rem, 9vw, 6rem);
}

/* ---------- Tablet ---------- */
@media (min-width: 640px) and (max-width: 1023px) {
  .product__gallery {
    gap: 1rem;
  }

  .product__tile {
    aspect-ratio: 3 / 4;
  }
}

/* ---------- Desktop: раскладка макета ---------- */
@media (min-width: 1024px) {
  .product {
    grid-template-columns: 64.9vw minmax(0, 1fr);
    gap: 0 2.03vw;
    padding: 1vw 0.94vw 0;
  }

  .product__gallery {
    gap: 1.146vw;
  }

  .product__tile {
    aspect-ratio: 612 / 720;
  }

  .product__info {
    position: sticky;
    top: 2rem;
    align-self: start;
    padding-top: 1.6vw;
  }

  .product__title {
    margin-top: 0.5vw;
  }

  .product__variants-head,
  .product__variants {
    margin-top: 0;
  }

  .product__buy {
    width: 73.2%;
    min-height: 4.3vw;
    margin-top: 0;
    font-size: 1.15vw;
  }

  .product__care {
    margin-top: 2.3vw;
  }

  .catalog.catalog--recommend {
    padding: 15.5vw 0.94vw 13.75vw;
  }
}

@media (prefers-reduced-motion: reduce) {
  .product__tile img,
  .product__buy,
  .product__summary::after,
  .product__variant-thumb,
  .product__variant-thumb img,
  .product__variant-name {
    transition: none;
  }
}