/* ===== SHOP NAVIGATION ===== */
.shop-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.shop-nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  color: var(--fg-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--fg-primary);
  background: var(--bg-tertiary);
}

.nav-cart-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--fg-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: all 0.2s;
  position: relative;
}

.nav-cart-btn:hover,
.nav-cart-btn.active {
  color: var(--fg-primary);
  border-color: rgba(255, 87, 34, 0.3);
}

.cart-badge {
  background: var(--accent);
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 11px;
  font-weight: 700;
  border-radius: 100px;
  padding: 1px 7px;
  min-width: 20px;
  text-align: center;
}

/* ===== SHOP HEADER ===== */
.shop-header {
  padding: 60px 24px 40px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(135deg, var(--bg-primary) 0%, rgba(255,87,34,0.03) 100%);
}

.shop-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.shop-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--fg-primary);
  margin-bottom: 10px;
}

.shop-header p {
  color: var(--fg-secondary);
  font-size: 1rem;
}

/* ===== FILTER TABS ===== */
.shop-filters {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.shop-filters-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 12px 0;
}

.shop-filters-inner::-webkit-scrollbar { display: none; }

.filter-tab {
  white-space: nowrap;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-secondary);
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.2s;
}

.filter-tab:hover {
  color: var(--fg-primary);
  background: var(--bg-tertiary);
}

.filter-tab.active {
  color: var(--accent);
  background: var(--accent-glow);
  border-color: rgba(255, 87, 34, 0.2);
}

/* ===== PRODUCTS GRID ===== */
.shop-main {
  padding: 48px 24px 80px;
}

.shop-main-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.product-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s;
}

.product-card:hover {
  border-color: rgba(255, 87, 34, 0.25);
  transform: translateY(-2px);
}

.product-img-link {
  display: block;
}

.product-img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-tertiary);
}

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

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

.product-cat-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(10,10,11,0.75);
  color: var(--accent-soft);
  border: 1px solid rgba(255,138,101,0.25);
  border-radius: 100px;
  padding: 3px 10px;
  backdrop-filter: blur(4px);
}

.product-info {
  padding: 18px 20px 20px;
}

.product-name {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg-primary);
  text-decoration: none;
  margin-bottom: 6px;
  line-height: 1.3;
}

.product-name:hover { color: var(--accent-soft); }

.product-compat {
  font-size: 0.78rem;
  color: var(--fg-muted);
  margin-bottom: 14px;
  line-height: 1.4;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.product-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--fg-primary);
}

.btn-add-cart {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 14px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  white-space: nowrap;
}

.btn-add-cart:hover { background: #e64a19; }
.btn-add-cart:active { transform: scale(0.97); }
.btn-add-cart:disabled { background: #555; cursor: default; }

/* ===== PRODUCT DETAIL ===== */
.breadcrumb-bar {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.breadcrumb-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  font-size: 0.82rem;
  color: var(--fg-muted);
}

.breadcrumb-inner a {
  color: var(--fg-muted);
  text-decoration: none;
}

.breadcrumb-inner a:hover { color: var(--fg-secondary); }

.product-detail-page {
  padding: 60px 24px 100px;
}

.product-detail-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.product-detail-img {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-tertiary);
}

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

.product-detail-cat {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 12px;
}

.product-detail-name {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--fg-primary);
  margin-bottom: 16px;
  line-height: 1.2;
}

.product-detail-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--fg-primary);
  margin-bottom: 20px;
}

.product-detail-compat {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--fg-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 20px;
}

.product-detail-compat svg { margin-top: 1px; flex-shrink: 0; }

.product-detail-desc {
  color: var(--fg-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 28px;
}

.product-add-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.qty-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.qty-row label {
  font-size: 0.9rem;
  color: var(--fg-secondary);
  font-weight: 500;
}

.qty-row input[type=number] {
  width: 72px;
  padding: 8px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border: none;
  border-radius: 10px;
  padding: 14px 24px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover { background: #e64a19; }
.btn-primary:active { transform: scale(0.98); }

.btn-large { padding: 16px 32px; font-size: 1rem; }

.product-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ===== CART PAGE ===== */
.cart-page {
  padding: 48px 24px 100px;
}

.cart-page-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.cart-title {
  font-size: 2rem;
  color: var(--fg-primary);
  margin-bottom: 36px;
}

.cart-empty {
  text-align: center;
  padding: 80px 24px;
  color: var(--fg-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.cart-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.cart-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.cart-item:last-child { border-bottom: none; }

.cart-item-img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}

.cart-item-details {
  flex: 1;
}

.cart-item-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg-primary);
  text-decoration: none;
  display: block;
  margin-bottom: 4px;
}

.cart-item-name:hover { color: var(--accent-soft); }

.cart-item-price {
  font-size: 0.82rem;
  color: var(--fg-muted);
}

.cart-item-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.qty-input {
  width: 60px;
  padding: 6px 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--fg-primary);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  text-align: center;
}

.cart-item-subtotal {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg-primary);
  min-width: 90px;
  text-align: right;
}

.btn-remove {
  background: none;
  border: none;
  color: var(--fg-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: 6px;
  transition: color 0.2s;
  display: flex;
  align-items: center;
}

.btn-remove:hover { color: #ef4444; }

/* Cart summary */
.cart-summary-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cart-summary-box h3 {
  font-size: 1.1rem;
  color: var(--fg-primary);
  margin-bottom: 4px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--fg-secondary);
}

.summary-total {
  display: flex;
  justify-content: space-between;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg-primary);
  padding-top: 14px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}

.btn-checkout {
  width: 100%;
  margin-top: 4px;
}

.cart-continue {
  text-align: center;
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-decoration: none;
  display: block;
  transition: color 0.2s;
}

.cart-continue:hover { color: var(--fg-secondary); }

.text-accent { color: var(--accent-soft); }

/* ===== SUCCESS / UNAVAILABLE PAGES ===== */
.success-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
}

.success-inner {
  text-align: center;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.success-icon {
  font-size: 3.5rem;
  color: #22c55e;
  background: rgba(34,197,94,0.1);
  border-radius: 50%;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.success-inner h1 {
  font-size: 1.8rem;
  color: var(--fg-primary);
}

.success-inner p {
  color: var(--fg-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

.success-amount {
  font-size: 1.1rem;
  color: var(--fg-primary);
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--fg-secondary);
}

/* ===== LANDING NAV BUTTON ===== */
.hero-shop-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: 10px;
  padding: 14px 28px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  transition: background 0.2s, transform 0.15s;
  margin-top: 16px;
}

.hero-shop-cta:hover { background: #e64a19; transform: translateY(-1px); }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .product-detail-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cart-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .products-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .shop-nav-inner { height: 56px; }
  .cart-item { flex-wrap: wrap; }
  .cart-item-actions { width: 100%; justify-content: flex-end; }
}

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