/* ==========================================================================
   BROWNWHITE.CO — Dedicated Product Detail Page (PDP) Stylesheet
   High-fashion editorial aesthetic, responsive gallery, luxury typography.
   ========================================================================== */

/* Page Container */
.pdp-page {
  background-color: var(--color-warm-white);
  color: var(--color-chocolate);
  min-height: 100vh;
  padding-top: calc(var(--header-height) + 1rem);
  padding-bottom: 5rem;
}

.pdp-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3.5rem);
}

/* ==========================================================================
   Breadcrumb Navigation
   ========================================================================== */
.pdp-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-light-brown);
  padding: 1rem 0 2rem;
}

.pdp-breadcrumb a {
  color: var(--color-light-brown);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.pdp-breadcrumb a:hover {
  color: var(--color-chocolate);
}

.pdp-breadcrumb-sep {
  opacity: 0.4;
  font-size: 0.65rem;
}

.pdp-breadcrumb-current {
  color: var(--color-chocolate);
  font-weight: 600;
}

/* ==========================================================================
   PDP Main Layout (2-Column Desktop Grid)
   ========================================================================== */
.pdp-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
  margin-bottom: 5rem;
}

/* ==========================================================================
   Left Column: Media Gallery
   ========================================================================== */
.pdp-gallery-col {
  position: sticky;
  top: calc(var(--header-height) + 2rem);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pdp-stage-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: var(--color-warm-white);
  border: 1px solid rgba(86, 51, 38, 0.12);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  box-shadow: 0 10px 30px rgba(41, 21, 15, 0.04);
}

.pdp-stage-img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
  transition: opacity 0.25s ease, transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
}

.pdp-stage-wrap:hover .pdp-stage-img {
  transform: scale(1.03);
}

.pdp-stage-badge {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  background-color: var(--color-chocolate);
  color: var(--color-cream);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.35rem 0.8rem;
  border-radius: 2px;
  z-index: 5;
}

/* Thumbnail Switcher */
.pdp-thumbs-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(86, 51, 38, 0.2) transparent;
}

.pdp-thumb-btn {
  position: relative;
  flex: 0 0 74px;
  width: 74px;
  height: 74px;
  background-color: var(--color-warm-white);
  border: 1.5px solid rgba(86, 51, 38, 0.15);
  border-radius: 3px;
  padding: 0.4rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pdp-thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.pdp-thumb-btn:hover {
  border-color: var(--color-chocolate);
}

.pdp-thumb-btn.active {
  border-color: var(--color-chocolate);
  box-shadow: 0 0 0 1px var(--color-chocolate);
}

/* ==========================================================================
   Right Column: Product Details & Actions
   ========================================================================== */
.pdp-info-col {
  display: flex;
  flex-direction: column;
}

.pdp-eyebrow-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.pdp-collection-tag {
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-light-brown);
  font-weight: 600;
}

.pdp-sku-tag {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: rgba(86, 51, 38, 0.5);
  text-transform: uppercase;
}

.pdp-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 500;
  line-height: 1.15;
  color: var(--color-chocolate);
  margin-bottom: 1.25rem;
  letter-spacing: -0.01em;
}

.pdp-price-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(86, 51, 38, 0.12);
}

.pdp-price-current {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 600;
  color: var(--color-chocolate);
}

.pdp-price-original {
  font-size: 1.15rem;
  color: rgba(86, 51, 38, 0.45);
  text-decoration: line-through;
}

.pdp-discount-pill {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background-color: var(--color-chocolate);
  color: var(--color-cream);
  padding: 0.25rem 0.65rem;
  border-radius: 2px;
}

.pdp-desc-intro {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-deep-brown);
  margin-bottom: 2rem;
}

/* Sizing Section */
.pdp-section {
  margin-bottom: 1.75rem;
}

.pdp-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.pdp-section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-chocolate);
}

.pdp-size-guide-btn {
  background: none;
  border: none;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-light-brown);
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition-fast);
}

.pdp-size-guide-btn:hover {
  color: var(--color-chocolate);
}

.pdp-sizes-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.6rem;
}

.pdp-size-btn {
  height: 44px;
  background-color: transparent;
  border: 1px solid rgba(86, 51, 38, 0.25);
  color: var(--color-chocolate);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pdp-size-btn:hover {
  border-color: var(--color-chocolate);
  background-color: rgba(41, 21, 15, 0.03);
}

.pdp-size-btn.active {
  background-color: var(--color-chocolate);
  color: var(--color-cream);
  border-color: var(--color-chocolate);
}

/* Quantity Row */
.pdp-qty-row {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.pdp-qty-stepper {
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(86, 51, 38, 0.25);
  border-radius: 2px;
  background-color: var(--color-warm-white);
}

.pdp-qty-btn {
  width: 38px;
  height: 38px;
  background: none;
  border: none;
  color: var(--color-chocolate);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

.pdp-qty-btn:hover {
  background-color: rgba(41, 21, 15, 0.05);
}

.pdp-qty-num {
  width: 38px;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-chocolate);
}

/* Actions Stack */
.pdp-actions-stack {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2.25rem;
}

.btn-pdp-add-bag {
  width: 100%;
  padding: 1.1rem 2rem;
  background-color: var(--color-chocolate);
  color: var(--color-cream);
  border: 1px solid var(--color-chocolate);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.btn-pdp-add-bag:hover {
  background-color: var(--color-warm-white);
  color: var(--color-chocolate);
}

.btn-pdp-whatsapp {
  width: 100%;
  padding: 1rem 2rem;
  background-color: transparent;
  color: var(--color-chocolate);
  border: 1.5px solid var(--color-chocolate);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
}

.btn-pdp-whatsapp:hover {
  background-color: var(--color-chocolate);
  color: var(--color-cream);
}

/* Trust Highlights Grid */
.pdp-trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid rgba(86, 51, 38, 0.12);
  border-bottom: 1px solid rgba(86, 51, 38, 0.12);
  margin-bottom: 2.25rem;
}

.pdp-trust-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.pdp-trust-icon {
  width: 20px;
  height: 20px;
  color: var(--color-chocolate);
}

.pdp-trust-heading {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-chocolate);
}

.pdp-trust-desc {
  font-size: 0.75rem;
  line-height: 1.45;
  color: var(--color-light-brown);
}

/* Accordions */
.pdp-accordions {
  display: flex;
  flex-direction: column;
}

.pdp-accordion-item {
  border-bottom: 1px solid rgba(86, 51, 38, 0.12);
}

.pdp-accordion-header {
  width: 100%;
  padding: 1.2rem 0;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  text-align: left;
}

.pdp-accordion-title {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-chocolate);
}

.pdp-accordion-icon {
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-chocolate);
  transition: transform 0.25s ease;
}

.pdp-accordion-item.active .pdp-accordion-icon {
  transform: rotate(45deg);
}

.pdp-accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--color-deep-brown);
}

.pdp-accordion-item.active .pdp-accordion-body {
  max-height: 600px;
  padding-bottom: 1.5rem;
}

.pdp-accordion-body ul {
  padding-left: 1.25rem;
  list-style: disc;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* ==========================================================================
   Craftsmanship Breakout Section
   ========================================================================== */
.pdp-craft-breakout {
  background-color: var(--color-chocolate);
  color: var(--color-cream);
  padding: clamp(3.5rem, 6vw, 5.5rem) 0;
  margin: 5rem 0;
  border-radius: 4px;
}

.pdp-craft-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 4.5rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}

.pdp-craft-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3.2vw, 2.75rem);
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  color: var(--color-cream);
}

.pdp-craft-text {
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(243, 236, 227, 0.85);
  margin-bottom: 1.75rem;
}

.pdp-craft-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.pdp-spec-box {
  border-left: 1px solid rgba(243, 236, 227, 0.25);
  padding-left: 1.25rem;
}

.pdp-spec-num {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--color-cream);
  margin-bottom: 0.25rem;
}

.pdp-spec-label {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(243, 236, 227, 0.65);
}

/* ==========================================================================
   Related Footwear Section
   ========================================================================== */
.pdp-related-section {
  margin: 5rem 0 3rem;
}

.pdp-related-header {
  text-align: center;
  margin-bottom: 3rem;
}

.pdp-related-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--color-light-brown);
  margin-bottom: 0.5rem;
}

.pdp-related-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 500;
  color: var(--color-chocolate);
}

.pdp-related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  max-width: 900px;
  margin: 0 auto;
  gap: 2.5rem;
}

/* Responsive Breakpoints */
@media (max-width: 968px) {
  .pdp-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .pdp-gallery-col {
    position: static;
  }

  .pdp-craft-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 640px) {
  .pdp-sizes-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pdp-trust-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .pdp-related-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .pdp-stage-wrap {
    padding: 1.5rem;
  }
}