/* ============================================================
   BALGINI — product detail page
   ============================================================ */

.pdp {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
  gap: 56px;
  align-items: start;
  padding: 24px var(--gutter) 40px;
  max-width: var(--container);
  margin: 0 auto;
}

/* ---------- gallery ---------- */

.gallery {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.gallery__thumbs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: calc(100vh - var(--header-h) - 60px);
  overflow-y: auto;
  scrollbar-width: none;
}

.gallery__thumbs::-webkit-scrollbar {
  display: none;
}

.gallery__thumb {
  position: relative;
  width: 76px;
  aspect-ratio: 3 / 4;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-alt);
  transition: border-color var(--dur) var(--ease);
}

.gallery__thumb:hover {
  border-color: var(--border-strong);
}

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

.gallery__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery__stage {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface-alt);
}

/* desktop: only the active slide is rendered, thumbs switch it */
.gallery__slide {
  display: none;
}

.gallery__slide.is-active {
  display: block;
}

.gallery__img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.gallery__badge {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 6px 11px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius);
}

.gallery__counter {
  position: absolute;
  right: 14px;
  bottom: 14px;
  padding: 5px 10px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-pill);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.gallery__nav {
  position: absolute;
  top: 50%;
  width: 42px;
  height: 42px;
  margin-top: -21px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  color: var(--text);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.gallery__nav:hover {
  background: var(--surface);
  color: var(--accent);
}

.gallery__nav--prev {
  left: 12px;
}

.gallery__nav--next {
  right: 12px;
}

/* ---------- info panel ---------- */

.pinfo {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  padding-bottom: 40px;
}

.pinfo__brand {
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--text-muted);
}

.pinfo__title {
  margin-top: 10px;
  font-size: 26px;
  line-height: 1.2;
}

.pinfo__fullname {
  margin-top: 8px;
  font-size: var(--fs-small);
  color: var(--text-muted);
  line-height: 1.55;
}

.pinfo__prices {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.pinfo__price {
  font-size: 24px;
  font-weight: 500;
}

.pinfo__old {
  font-size: var(--fs-lead);
  color: var(--text-muted);
  text-decoration: line-through;
}

.pinfo__off {
  padding: 3px 8px;
  background: rgba(232, 91, 42, 0.1);
  color: var(--accent);
  border-radius: var(--radius);
  font-size: var(--fs-small);
  font-weight: 500;
}

.pinfo__divider {
  margin: 22px 0;
}

/* sizes */
.sizes__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.sizes__label {
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sizes__link {
  font-size: var(--fs-small);
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.sizes {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.sizes__chip {
  height: 46px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  font-size: var(--fs-base);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease),
    color var(--dur) var(--ease);
}

.sizes__chip:hover:not(:disabled) {
  border-color: var(--text);
}

.sizes__chip.is-active {
  background: var(--text);
  border-color: var(--text);
  color: var(--text-inverse);
}

.sizes__chip:disabled {
  background: var(--surface-alt);
  color: var(--disabled-ink);
  border-color: var(--border);
  text-decoration: line-through;
  cursor: not-allowed;
}

.stock {
  margin-top: 10px;
  font-size: var(--fs-small);
  min-height: 18px;
  color: var(--text-muted);
}

.stock--ok {
  color: #2f7d54;
}

.stock--error {
  color: var(--accent);
}

/* buy block */
.buy {
  margin-top: 18px;
  display: flex;
  gap: 10px;
}

.buy .btn {
  flex: 1 1 auto;
}

.buy__hint {
  margin-top: 10px;
  font-size: var(--fs-small);
  color: var(--text-muted);
  min-height: 18px;
}

.buy__hint--error {
  color: var(--accent);
}

/* delivery / payment rows */
.spec-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid var(--border);
  font-size: var(--fs-small);
}

.spec-row__key {
  color: var(--text-muted);
}

.spec-row__val {
  text-align: right;
}

.spec-row__val b {
  font-weight: 500;
}

/* ---------- accordions ---------- */

.accordion {
  margin-top: 26px;
  border-top: 1px solid var(--border);
}

.accordion__row {
  border-bottom: 1px solid var(--border);
}

.accordion__row > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  list-style: none;
  cursor: pointer;
  font-size: var(--fs-base);
}

.accordion__row > summary::-webkit-details-marker {
  display: none;
}

.accordion__row > summary:hover {
  color: var(--accent);
}

.accordion__icon {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  position: relative;
}

.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.accordion__icon::before {
  top: 5px;
  left: 0;
  width: 12px;
  height: 1.2px;
}

.accordion__icon::after {
  left: 5px;
  top: 0;
  width: 1.2px;
  height: 12px;
}

.accordion__row[open] .accordion__icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.accordion__body {
  padding: 0 0 18px;
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--text-muted);
}

.accordion__body p + p {
  margin-top: 10px;
}

.accordion__body li {
  position: relative;
  padding-left: 16px;
}

.accordion__body li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--border-strong);
}

.accordion__body ul li + li {
  margin-top: 6px;
}

/* size table */
.size-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-small);
}

.size-table th,
.size-table td {
  padding: 9px 6px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.size-table th {
  color: var(--text-muted);
  font-weight: 500;
}

.size-table th:first-child,
.size-table td:first-child {
  text-align: left;
}

/* ---------- mobile sticky buy bar ---------- */

.sticky-buy {
  display: none;
}

/* ============================================================
   responsive
   ============================================================ */

@media (max-width: 1024px) {
  .pdp {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    padding: 0 0 24px;
  }

  /* gallery becomes a swipe carousel */
  .gallery {
    display: block;
  }

  .gallery__thumbs {
    display: none;
  }

  .gallery__stage {
    border: 0;
    border-radius: 0;
    overflow: hidden;
  }

  .gallery__track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .gallery__track::-webkit-scrollbar {
    display: none;
  }

  .gallery__slide {
    display: block;
    flex: 0 0 100%;
    scroll-snap-align: start;
  }

  .gallery__img {
    height: 62vh;
    min-height: 420px;
    aspect-ratio: auto;
  }

  .gallery__nav {
    display: none;
  }

  .gallery__counter {
    bottom: 12px;
    right: 12px;
  }

  .pinfo {
    position: static;
    padding: 20px var(--gutter) 0;
  }

  .pinfo__title {
    font-size: 22px;
  }

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

  /* sticky buy bar above the tabbar */
  .sticky-buy {
    position: fixed;
    inset: auto 0 var(--tabbar-h);
    z-index: 44;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px var(--gutter);
    padding-bottom: calc(10px + env(safe-area-inset-bottom));
    background: var(--surface);
    border-top: 1px solid var(--border);
  }

  .sticky-buy__price {
    flex: 0 0 auto;
    font-size: var(--fs-lead);
    font-weight: 500;
    line-height: 1.2;
  }

  .sticky-buy__old {
    display: block;
    font-size: var(--fs-micro);
    font-weight: 400;
    color: var(--text-muted);
    text-decoration: line-through;
  }

  .sticky-buy .btn {
    flex: 1 1 auto;
    min-height: 44px;
  }

  .accordion {
    margin-bottom: 80px;
  }
}