/* ==========================================================================
   FIOREN CLOTHING® — SINGLE PRODUCT PAGE STYLES (product.css)
   Architectural Brutalism & Nordic High Editorial Product Showcase
   ========================================================================== */

/* Product Page Layout Container */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

.product-page-main {
  padding-top: calc(var(--header-height) + 1.5rem);
  padding-bottom: 6rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* Breadcrumbs & Top Meta Bar */
.product-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 2.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
}

.product-breadcrumbs a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.product-breadcrumbs a:hover {
  color: var(--text-primary);
}

.product-breadcrumbs .separator {
  color: var(--text-muted);
}

.product-breadcrumbs .current-crumb {
  color: var(--accent-crimson);
  font-weight: 600;
  max-width: 320px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.back-to-archive-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.back-to-archive-link:hover {
  color: var(--accent-crimson);
  transform: translateX(-4px);
}

/* 2-Column Product Showcase */
.product-stage-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: start;
  margin-bottom: 6rem;
}

/* Left Column: Visual Gallery */
.product-gallery-stage {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: calc(var(--header-height) + 2rem);
}

.main-image-viewport {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
  cursor: crosshair;
}

.main-image-viewport img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transition: transform 0.4s var(--ease-out-expo), opacity 0.3s ease;
  transform-origin: center center;
}

.main-image-viewport:hover img {
  transform: scale(1.1);
}

.gallery-badge {
  position: absolute;
  top: 1.25rem;
  left: 1.25rem;
  background: var(--bg-glass-heavy);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-medium);
  padding: 0.4rem 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  z-index: 2;
}

.gallery-zoom-hint {
  position: absolute;
  bottom: 1.25rem;
  right: 1.25rem;
  background: var(--bg-glass-heavy);
  backdrop-filter: blur(8px);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  pointer-events: none;
}

/* Thumbnail Strip */
.product-thumbnail-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.gallery-thumb-btn {
  aspect-ratio: 1;
  background-color: var(--bg-secondary);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
  padding: 0;
  cursor: pointer;
  transition: border-color var(--transition-fast), transform var(--transition-fast), opacity var(--transition-fast);
  opacity: 0.65;
  position: relative;
}

.gallery-thumb-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gallery-thumb-btn:hover {
  opacity: 0.95;
  border-color: var(--border-medium);
}

.gallery-thumb-btn.active {
  opacity: 1;
  border-color: var(--accent-crimson);
  box-shadow: 0 0 0 2px rgba(30, 76, 72, 0.25);
  transform: translateY(-2px);
}

.thumb-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 12, 0.8);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: #fff;
  padding: 2px 4px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Atelier Certificate Ribbon */
.atelier-cert-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.atelier-cert-banner .code {
  color: var(--text-primary);
  font-weight: 600;
}

/* Right Column: Garment Information & Atelier Actions */
.product-info-stage {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.product-info-header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 2rem;
}

.product-category-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--accent-crimson);
  text-transform: uppercase;
  font-weight: 600;
}

.product-main-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.2vw, 3rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.product-price-row {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.product-hero-price {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.product-tax-note {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.product-editorial-summary {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

/* Architectural Specifications Matrix */
.product-specs-matrix {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
}

.spec-cell {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.spec-cell-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spec-cell-value {
  font-size: 0.88rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Colorway Selector */
.product-colorways-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.option-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.option-label-row .label {
  color: var(--text-secondary);
}

.option-label-row .selected-name {
  color: var(--text-primary);
  font-weight: 600;
}

.colorway-options {
  display: flex;
  gap: 0.75rem;
}

.colorway-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.color-swatch-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.colorway-btn.active {
  border-color: var(--accent-crimson);
  color: var(--text-primary);
  background: var(--bg-tertiary);
  box-shadow: 0 0 0 1px var(--accent-crimson);
}

/* Sizing Selector */
.product-sizes-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.size-guide-trigger {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-decoration: underline;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
}

.size-guide-trigger:hover {
  color: var(--accent-crimson);
}

.size-options-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.size-pill-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.85rem 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-mono);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.size-pill-btn .size-text {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.size-pill-btn .size-status {
  font-size: 0.62rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.size-pill-btn:hover {
  border-color: var(--border-medium);
  background: var(--bg-tertiary);
}

.size-pill-btn.active {
  border-color: var(--accent-crimson);
  background: var(--bg-tertiary);
  box-shadow: 0 0 0 1px var(--accent-crimson);
}

.size-pill-btn.active .size-status {
  color: var(--accent-crimson);
  font-weight: 600;
}

/* CTA Action Bar */
.product-action-bar {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding-top: 0.5rem;
}

.btn-reserve-atelier {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.15rem 2rem;
  background: var(--text-primary);
  color: var(--text-inverse);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.btn-reserve-atelier:hover {
  background: var(--accent-crimson);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(30, 76, 72, 0.35);
}

.btn-reserve-atelier:active {
  transform: translateY(0);
}

.btn-reserve-atelier.added-state {
  background: #10b981;
  color: #fff;
}

.btn-fitting-consult {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.5rem;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-fitting-consult:hover {
  background: var(--bg-tertiary);
  border-color: var(--text-primary);
}

/* Atelier Trust Strip */
.atelier-guarantees {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.guarantee-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.guarantee-item .icon {
  color: var(--accent-crimson);
}

/* Technical Accordion Suite */
.technical-accordion-suite {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-subtle);
}

.accordion-tab {
  border-bottom: 1px solid var(--border-subtle);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  letter-spacing: -0.01em;
  transition: color var(--transition-fast);
}

.accordion-trigger:hover {
  color: var(--accent-crimson);
}

.accordion-trigger .chevron {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  transition: transform var(--transition-fast);
}

.accordion-tab.open .accordion-trigger .chevron {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding-bottom: 1.5rem;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-secondary);
}

.accordion-tab.open .accordion-content {
  display: block;
}

.accordion-content p + p {
  margin-top: 0.75rem;
}

.accordion-spec-list {
  margin-top: 0.75rem;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
}

.accordion-spec-list li::before {
  content: "— ";
  color: var(--accent-crimson);
}

/* Related Pieces Showcase */
.related-archive-section {
  border-top: 1px solid var(--border-subtle);
  padding-top: 4rem;
  margin-top: 2rem;
}

.related-section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 2.5rem;
}

.related-section-header .section-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-crimson);
  letter-spacing: 0.12em;
}

.related-section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-top: 0.4rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* Floating Bag Drawer Notification */
.bag-drawer-toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-glass-heavy);
  backdrop-filter: blur(20px);
  border: 1px solid var(--accent-crimson);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.75rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  z-index: 1000;
  transform: translateY(120%);
  transition: transform 0.4s var(--ease-out-expo);
}

.bag-drawer-toast.active {
  transform: translateY(0);
}

.toast-img {
  width: 48px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.toast-body {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.toast-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.toast-sub {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.toast-view-bag-btn {
  background: var(--accent-crimson);
  color: #fff;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}

/* Modal Fit Guide */
.fit-guide-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.fit-guide-modal-backdrop.open {
  display: flex;
}

.fit-guide-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  max-width: 600px;
  width: 100%;
  padding: 2rem;
  position: relative;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.8);
}

.fit-guide-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.fit-guide-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.fit-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.fit-table th, .fit-table td {
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
}

.fit-table th {
  color: var(--text-muted);
  text-transform: uppercase;
}

.fit-table td {
  color: var(--text-primary);
}

/* Responsive Breakpoints */
html, body {
  overflow-x: hidden !important;
  max-width: 100vw;
  width: 100%;
}

@media (max-width: 1024px) {
  .product-stage-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .product-gallery-stage {
    position: relative;
    top: 0;
  }
  
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .product-stage-container {
    padding: 1.5rem 1rem 3rem;
  }
  .product-hero-title {
    font-size: clamp(1.8rem, 6.5vw, 2.5rem);
  }
  .product-specs-matrix {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .fit-table {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 640px) {
  .size-options-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .atelier-guarantees {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .related-grid {
    grid-template-columns: 1fr;
  }
  
  .product-thumbnail-strip {
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
  }

  .cta-row {
    flex-direction: column;
    width: 100%;
  }

  .btn-add-to-bag,
  .btn-fitting-consult {
    width: 100%;
    justify-content: center;
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .product-page-main {
    padding-left: 0.75rem !important;
    padding-right: 0.75rem !important;
    overflow-x: hidden !important;
    max-width: 100vw !important;
  }
  .brand-badge {
    display: none !important;
  }
  .product-top-bar {
    flex-wrap: wrap;
    gap: 0.5rem;
    overflow-x: hidden;
    max-width: 100%;
  }
  .product-breadcrumbs {
    font-size: 0.68rem;
    gap: 0.4rem;
    flex-wrap: wrap;
    max-width: 100%;
    overflow: hidden;
  }
  .product-breadcrumbs .current-crumb {
    max-width: 130px;
    text-overflow: ellipsis;
  }
  .back-to-archive-link {
    font-size: 0.72rem;
  }
  .size-guide-trigger {
    padding: 8px 4px;
    display: inline-block;
  }
  .btn-tryon-product,
  .tryon-btn {
    min-height: 42px !important;
    padding: 10px 14px !important;
  }
  .product-hero-title {
    font-size: 1.85rem;
    line-height: 1.1;
  }
  .product-meta-row {
    flex-wrap: wrap;
    gap: 0.6rem;
  }
  .product-gallery-stage,
  .main-image-viewport {
    max-width: 100%;
  }
}