.product {
  display: grid;
  width: min(1440px, 100%);
  margin-inline: auto;
  grid-template-columns: 44.444% 55.556%;
  align-items: start;
}

.product__gallery {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.product__gallery img {
  display: block;
  width: 100%;
  height: auto;
}

.product__info {
  position: sticky;
  top: 204px;
  padding: 0 10% 80px;
}

.crumbs {
  margin: 0;
  color: var(--color-content-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.3;
}

.crumbs a { color: inherit; }

.product__title {
  margin: 32px 0 0;
  font-weight: 400;
  font-size: 48px;
  line-height: 1.08;
}

.product__lead {
  margin: 12px 0 0;
  color: var(--color-content-secondary);
  font-size: 24px;
  font-style: italic;
  line-height: 1.25;
}

.product__meta {
  margin: 12px 0 0;
  color: var(--color-content-muted);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
}

.product__price {
  margin: 32px 0 0;
  color: var(--color-content-accent);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.4;
}

.product__actions {
  display: flex;
  gap: 18px;
  margin-top: 32px;
}

.product__actions .btn { flex: 1; }

.files {
  position: relative;
  flex: 0 0 209px;
}

.product__files {
  width: 100%;
  color: var(--color-content-primary);
}

.product__files:hover { color: var(--color-content-accent); }

.files.is-open { z-index: 3; }

.files.is-open .product__files {
  border-image: none;
  background: #6fcfaa;
  color: var(--color-surface-page);
}

.files__menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  z-index: 4;
  flex-direction: column;
  padding: 4px 0 8px;
  background: #fff;
  border-radius: 0 0 4px 4px;
}

.files.is-open .files__menu { display: flex; }

.files__menu a {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 11px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.4;
}

.files__menu a span:first-child {
  color: var(--color-content-primary);
  font-weight: 500;
}

.files__menu a span:last-child { color: var(--color-content-muted); }

.product__text {
  margin: 32px 0 0;
  font-size: 20px;
  line-height: 1.5;
}

.product__text p { margin: 0; }

.product__text p + p { margin-top: 1em; }

.accordion { margin-top: 32px; }

.accordion__item { border-bottom: 1px solid var(--color-border-subtle, #e6e0d8); }

.accordion__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 21px 0 16px;
  border: 0;
  background: none;
  color: var(--color-content-primary);
  font-family: var(--font-serif);
  font-size: 24px;
  font-style: italic;
  line-height: 1.25;
  text-align: left;
  cursor: pointer;
}

.accordion__body {
  margin: 0;
  padding: 0 0 21px;
  color: var(--color-content-secondary);
  font-size: 18px;
  line-height: 1.5;
  white-space: pre-line;
}

.accordion__item:not(.is-open) .accordion__body { display: none; }

.fit,
.related { padding: 96px 0; }

.fit__head,
.related h2,
.fit h2 {
  margin: 0;
  font-weight: 400;
  font-style: italic;
  font-size: 36px;
  line-height: 1.15;
}

.fit__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
}

.fit__head p {
  max-width: 620px;
  margin: 12px 0 0;
  color: var(--color-content-secondary);
  font-family: var(--font-serif);
  font-size: 18px;
  font-style: normal;
  line-height: 1.5;
}

.fit__all {
  flex: 0 0 auto;
  color: var(--color-content-accent);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.fit__grid,
.related__grid {
  display: grid;
  gap: 24px;
}

.fit__grid { margin-top: 32px; }

.related__grid { margin-top: 40px; }

.fit__grid { grid-template-columns: repeat(4, 1fr); }

.related__grid { grid-template-columns: repeat(3, 1fr); }

.box__photo {
  display: block;
  aspect-ratio: 1;
  background: var(--color-surface-subtle);
}

.box__photo img,
.related .card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.box__brand {
  margin: 12px 0 0;
  color: var(--color-content-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.box h3 {
  margin: 12px 0 0;
  font-size: 24px;
  font-weight: 500;
  font-style: normal;
  line-height: 1.25;
}

.box__spec {
  margin: 12px 0 0;
  color: var(--color-content-secondary);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.5;
}

.box__price {
  margin: 6px 0 0;
  color: var(--color-content-accent);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
}

@media (max-width: 1023px) {
  .product { display: block; width: 100%; }
  .product__gallery img { object-fit: cover; }
  .product__gallery img:nth-child(1),
  .product__gallery img:nth-child(2) { height: 600px; }
  .product__gallery img:nth-child(3) { height: 547px; }
  .product__gallery img:nth-child(4) { height: 506px; }
  .product__gallery img:nth-child(5) { height: 488px; }
  .product__info { position: static; padding: 0 40px 48px; }
  .product__title { font-size: 40px; }
  .product__lead { font-size: 22px; }
  .product__text { font-size: 19px; }
  .files { flex-basis: 225px; }
  .accordion__head { font-size: 22px; }
  .accordion__body { font-size: 17px; }

  .fit { padding: 72px 0 0; }
  .fit h2,
  .related h2 { font-size: 32px; }
  .fit__head { display: block; }
  .fit__head p { max-width: none; font-size: 17px; }
  .fit__all { display: inline-block; margin-top: 12px; }
  .fit__grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .box__photo { aspect-ratio: auto; height: 302px; }
  .box h3 { font-size: 22px; }

  .related { padding: 72px 0; }
  .related__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 767px) {
  .product__gallery img:nth-child(1) { height: 585px; }
  .product__gallery img:nth-child(2) { height: 330px; }
  .product__gallery img:nth-child(3) { height: 278px; }
  .product__gallery img:nth-child(4) { height: 257px; }
  .product__gallery img:nth-child(5) { height: 248px; }
  .product__info { padding: 0 20px 40px; }
  .crumbs { font-size: 11px; }
  .product__title { font-size: 34px; }
  .product__lead { font-size: 20px; }
  .product__meta,
  .product__price { font-size: 13px; }
  .product__text { font-size: 18px; }
  .product__actions { flex-direction: column; }
  .files { flex-basis: auto; width: 100%; }
  .accordion__head { font-size: 20px; }
  .accordion__body { font-size: 16px; }

  .fit { padding: 56px 0 0; }
  .related { padding: 56px 0; }
  .fit h2,
  .related h2 { font-size: 28px; }
  .fit__head p { font-size: 16px; }
  .fit__all { font-size: 13px; }
  .fit .container,
  .related .container { width: 100%; padding-right: 0; }
  .fit__grid,
  .related__grid {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-right: 20px;
  }
  .box { flex: 0 0 240px; scroll-snap-align: start; }
  .box__photo { height: 302px; }
  .box__brand { font-size: 11px; }
  .box h3 { font-size: 20px; }
  .related__grid { margin-top: 40px; }
  .related .card { flex: 0 0 280px; scroll-snap-align: start; }
  .related h2 { margin-bottom: 0; }
}