/* ═══════════════════════════════════════════════
   TuftNano SHOP — Styles
   Matches brand: purple/indigo/cyan gradient,
   dark bg, Space Grotesk headings, Inter body
   ═══════════════════════════════════════════════ */

/* ─── Shop Layout ─── */
.shop-page {
  min-height: 100vh;
  background: var(--bg-dark);
  padding-top: 100px;
}

/* ─── Shop Navigation (Reuse tool-nav style) ─── */
.shop-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: rgba(10,10,15,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.shop-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: white;
}
.shop-nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  object-fit: contain;
}

.shop-nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.shop-nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}
.shop-nav-links a:hover { color: white; }
.shop-nav-links a.active {
  color: white;
  position: relative;
}
.shop-nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-1);
}

.shop-nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.shop-cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  background: var(--glass-light);
  border: 1px solid var(--border-subtle);
  color: white;
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}
.shop-cart-btn:hover {
  border-color: rgba(168,85,247,0.3);
  background: rgba(168,85,247,0.08);
}
.shop-cart-btn .badge {
  background: var(--accent);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 50px;
  min-width: 18px;
  text-align: center;
}

/* ─── Shop Hero Banner ─── */
.shop-hero {
  text-align: center;
  padding: 48px 24px 40px;
  position: relative;
  overflow: hidden;
}
.shop-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(168,85,247,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.shop-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
  position: relative;
}
.shop-hero p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 28px;
  line-height: 1.7;
  position: relative;
}

/* ─── Search & Filter Bar ─── */
.shop-toolbar {
  max-width: 1280px;
  margin: 0 auto 40px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.shop-search {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--glass);
  border: 1px solid var(--border-subtle);
  border-radius: 50px;
  padding: 10px 20px;
  flex: 1;
  max-width: 420px;
  transition: var(--transition);
}
.shop-search:focus-within {
  border-color: rgba(168,85,247,0.4);
  background: rgba(168,85,247,0.05);
}
.shop-search i { color: var(--text-muted); font-size: 0.9rem; }
.shop-search input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: white;
  font-size: 0.9rem;
}
.shop-search input::placeholder { color: var(--text-muted); }

.shop-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.shop-sort-select {
  background: var(--glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: white;
  padding: 8px 14px;
  font-size: 0.82rem;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}
.shop-sort-select:focus { border-color: rgba(168,85,247,0.4); }
.shop-sort-select option { background: #1a1a2e; color: white; }

.shop-view-toggle {
  display: flex;
  gap: 4px;
  background: var(--glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 4px;
}
.view-btn {
  padding: 6px 10px;
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: all 0.2s;
}
.view-btn.active { background: rgba(168,85,247,0.2); color: white; }
.view-btn:hover:not(.active) { color: white; }

.shop-results-count {
  font-size: 0.82rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ─── Category Tabs ─── */
.shop-categories {
  max-width: 1280px;
  margin: 0 auto 36px;
  padding: 0 24px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.shop-categories::-webkit-scrollbar { display: none; }

.cat-tab {
  padding: 8px 18px;
  border-radius: 50px;
  background: var(--glass);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 550;
  white-space: nowrap;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.cat-tab:hover {
  border-color: rgba(168,85,247,0.3);
  color: white;
}
.cat-tab.active {
  background: var(--gradient-1);
  border-color: transparent;
  color: white;
}
.cat-tab .cat-count {
  font-size: 0.7rem;
  opacity: 0.7;
}

/* ─── Product Grid ─── */
.shop-grid {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.shop-grid.list-view {
  grid-template-columns: 1fr;
  gap: 14px;
}

/* ─── Product Card ─── */
.product-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(168,85,247,0.25);
  box-shadow: 0 12px 40px rgba(168,85,247,0.1);
}

.product-card-img {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, #111118 0%, #1a1a2e 100%);
}
.product-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .product-card-img img {
  transform: scale(1.08);
}

/* Sale Badge */
.product-sale-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: 50px;
  background: rgba(239,68,68,0.85);
  color: white;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  backdrop-filter: blur(4px);
  z-index: 2;
}

/* Best Seller Badge */
.product-best-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 50px;
  background: rgba(168,85,247,0.85);
  color: white;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  backdrop-filter: blur(4px);
  z-index: 2;
}

/* Quick Add Overlay */
.product-quick-add {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 14px;
  background: linear-gradient(0deg, rgba(10,10,15,0.95) 0%, transparent 100%);
  display: flex;
  justify-content: center;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 2;
}
.product-card:hover .product-quick-add {
  opacity: 1;
  transform: translateY(0);
}
.quick-add-btn {
  padding: 8px 24px;
  border-radius: var(--radius-sm);
  background: var(--gradient-1);
  color: white;
  font-size: 0.82rem;
  font-weight: 600;
  transition: var(--transition);
}
.quick-add-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 20px rgba(168,85,247,0.3);
}

/* Card Body */
.product-card-body {
  padding: 18px;
}

.product-card-category {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  margin-bottom: 6px;
}

.product-card-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: white;
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card-price {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.product-card-price .current-price {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.product-card-price .original-price {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-decoration: line-through;
}
.product-card-price .discount-pct {
  font-size: 0.68rem;
  font-weight: 700;
  color: #ef4444;
  background: rgba(239,68,68,0.1);
  padding: 2px 6px;
  border-radius: 4px;
}

.product-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.product-tag {
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: 50px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--text-muted);
}

/* ─── List View Card ─── */
.shop-grid.list-view .product-card {
  display: grid;
  grid-template-columns: 200px 1fr;
}
.shop-grid.list-view .product-card-img {
  height: 100%;
  min-height: 160px;
}
.shop-grid.list-view .product-card-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ─── Empty State ─── */
.shop-empty {
  text-align: center;
  padding: 80px 24px;
  grid-column: 1 / -1;
}
.shop-empty i {
  font-size: 3rem;
  color: rgba(168,85,247,0.3);
  margin-bottom: 16px;
}
.shop-empty h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.shop-empty p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ─── Featured Promo Banner ─── */
.shop-promo {
  max-width: 1280px;
  margin: 0 auto 40px;
  padding: 0 24px;
}
.promo-banner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.promo-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(168,85,247,0.08) 0%, rgba(99,102,241,0.05) 100%);
  border: 1px solid rgba(168,85,247,0.15);
  display: flex;
  align-items: center;
  gap: 24px;
  transition: var(--transition);
}
.promo-card:hover {
  border-color: rgba(168,85,247,0.3);
  transform: translateY(-4px);
}
.promo-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--gradient-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: white;
  flex-shrink: 0;
}
.promo-card h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.promo-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ─── Load More ─── */
.shop-load-more {
  text-align: center;
  padding: 40px 0 80px;
}

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width: 1024px) {
  .shop-grid { grid-template-columns: repeat(3, 1fr); }
  .shop-nav-links { display: none; }
}
@media (max-width: 768px) {
  .shop-hero h1 { font-size: 2rem; }
  .shop-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .product-card-img { height: 180px; }
  .shop-toolbar { flex-direction: column; align-items: stretch; }
  .shop-search { max-width: 100%; }
  .promo-banner { grid-template-columns: 1fr; }
  .shop-nav { padding: 12px 16px; }
  .shop-grid.list-view .product-card { grid-template-columns: 140px 1fr; }
}
@media (max-width: 480px) {
  .shop-grid { grid-template-columns: 1fr; }
  .shop-controls { flex-wrap: wrap; }
}