/* =========== SHOP NAV =========== */
.shop-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
}

.shop-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 60px;
}

.shop-nav-brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
  color: var(--fg);
  text-decoration: none;
  white-space: nowrap;
}

.shop-nav-brand:hover {
  color: var(--accent);
}

.shop-nav-links {
  display: flex;
  gap: 0;
  flex: 1;
}

.shop-nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
}

.shop-nav-link:hover {
  color: var(--fg);
  background: var(--bg-alt);
}

.shop-nav-tag {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* =========== CATALOG PAGE =========== */
.catalog-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 2rem 6rem;
}

.catalog-header {
  margin-bottom: 2.5rem;
}

.catalog-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 0.75rem;
}

.catalog-title-accent {
  color: var(--accent);
}

.catalog-sub {
  font-size: 1rem;
  color: var(--fg-muted);
}

/* =========== FILTER TABS =========== */
.catalog-filters {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-tab {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all 0.2s;
}

.filter-tab:hover {
  border-color: var(--fg-muted);
  color: var(--fg);
}

.filter-tab--active {
  background: var(--accent);
  color: #0a0a0a;
  border-color: var(--accent);
  font-weight: 600;
}

.filter-tab--active:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  color: #0a0a0a;
}

/* =========== PRODUCT GRID =========== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.product-card {
  text-decoration: none;
  color: inherit;
  display: block;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-alt);
  transition: border-color 0.25s, transform 0.25s;
}

.product-card:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}

.product-card-image {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #161616;
}

.product-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-card-image img {
  transform: scale(1.04);
}

/* Placeholder when no image */
.product-card-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #161616 0%, #1a1a1a 100%);
}

.placeholder-letter {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 5rem;
  color: var(--border);
  -webkit-text-stroke: 1px #2a2a2a;
  letter-spacing: -0.04em;
}

/* Savings badge */
.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--accent);
  color: #0a0a0a;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

.product-badge--large {
  font-size: 0.85rem;
  padding: 0.35rem 0.85rem;
}

.product-card-info {
  padding: 1.1rem 1.25rem 1.4rem;
}

.product-card-category {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.product-card-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 0.6rem;
  color: var(--fg);
}

.product-card-pricing {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.product-price {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent);
}

.product-compare {
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-decoration: line-through;
}

/* =========== EMPTY STATE =========== */
.catalog-empty {
  text-align: center;
  padding: 6rem 2rem;
  color: var(--fg-muted);
}

.catalog-empty p {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

/* =========== CTA BUTTON =========== */
.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #0a0a0a;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  padding: 0.85rem 2rem;
  border-radius: 8px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
}

.btn-cta {
  width: 100%;
  text-align: center;
  font-size: 1rem;
  padding: 1rem 2rem;
}

/* =========== BREADCRUMB =========== */
.breadcrumb {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.25rem 2rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
}

.breadcrumb-link {
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s;
}

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

.breadcrumb-sep {
  color: var(--border);
}

.breadcrumb-current {
  color: var(--fg);
}

/* =========== PRODUCT DETAIL =========== */
.product-page {
  padding-bottom: 6rem;
}

.product-detail {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 2rem 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.product-detail-image {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: #161616;
}

.product-detail-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-detail-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #161616 0%, #1c1c1c 100%);
}

.placeholder-letter-large {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 12rem;
  color: var(--border);
  -webkit-text-stroke: 1px #2a2a2a;
  letter-spacing: -0.04em;
}

.product-detail-info {
  position: sticky;
  top: 80px;
  padding-top: 0.5rem;
}

.product-detail-category {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.product-detail-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.product-detail-pricing {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.product-detail-price {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 2rem;
  color: var(--accent);
}

.product-detail-compare {
  font-size: 1.1rem;
  color: var(--fg-muted);
  text-decoration: line-through;
}

.product-detail-savings {
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--accent);
  color: #0a0a0a;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.product-detail-description {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.8;
  margin-bottom: 2rem;
}

/* =========== SIZE SELECTOR =========== */
.product-sizes {
  margin-bottom: 1.75rem;
}

.product-sizes-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 0.75rem;
}

.product-sizes-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.size-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.size-btn:hover {
  border-color: var(--fg-muted);
}

.size-btn--active {
  background: var(--accent);
  color: #0a0a0a;
  border-color: var(--accent);
  font-weight: 600;
}

/* =========== ACTIONS + TRUST =========== */
.product-detail-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.product-trust {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.trust-item {
  font-size: 0.78rem;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}

/* =========== CART TOAST =========== */
.cart-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--fg);
  color: var(--bg);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.85rem 1.75rem;
  border-radius: 100px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  white-space: nowrap;
  z-index: 999;
}

.cart-toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* =========== RELATED PRODUCTS =========== */
.related-section {
  max-width: 1100px;
  margin: 5rem auto 0;
  padding: 0 2rem;
  border-top: 1px solid var(--border);
  padding-top: 3.5rem;
}

.related-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 3vw, 2rem);
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.related-title-accent {
  color: var(--accent);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

/* =========== MOBILE =========== */
@media (max-width: 768px) {
  .shop-nav-tag {
    display: none;
  }

  .shop-nav-links {
    display: none; /* Will show as hamburger if needed — MVP skip */
  }

  .shop-nav-inner {
    gap: 1rem;
  }

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

  .product-card-info {
    padding: 0.85rem 1rem 1.1rem;
  }

  .product-card-name {
    font-size: 0.9rem;
  }

  .product-detail {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 1.5rem 1.25rem 0;
  }

  .product-detail-info {
    position: static;
  }

  .product-detail-placeholder {
    aspect-ratio: 1 / 1;
  }

  .product-detail-image {
    aspect-ratio: 1 / 1;
  }

  .placeholder-letter-large {
    font-size: 7rem;
  }

  .catalog-page {
    padding: 2rem 1.25rem 4rem;
  }

  .breadcrumb {
    padding: 1rem 1.25rem 0;
    font-size: 0.78rem;
  }

  .related-section {
    padding: 3rem 1.25rem 0;
    margin-top: 3rem;
  }

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

@media (max-width: 420px) {
  .product-grid {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}