/* ══════════════════════════════════════
   NEXORA — Shop Page
   ══════════════════════════════════════ */

.shop-header {
  background: linear-gradient(135deg, var(--purple-50), var(--purple-100));
  padding: var(--sp-12) 0;
  text-align: center;
}
.shop-header-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  margin-bottom: var(--sp-2);
}
.shop-header-count {
  color: var(--text-secondary);
  font-size: var(--fs-sm);
}

.shop-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--sp-8);
}

/* Sidebar */
.shop-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--sp-4));
  height: fit-content;
}
.sidebar-header h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
}
.sidebar-close {
  display: none;
  font-size: 1.5rem;
  color: var(--gray-500);
  cursor: pointer;
}

.filter-group {
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--border);
}
.filter-title {
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--sp-3);
  color: var(--gray-800);
}
.filter-options { display: flex; flex-direction: column; gap: var(--sp-2); }
.filter-option {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  cursor: pointer;
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  transition: background var(--dur-fast);
}
.filter-option:hover { background: var(--gray-50); }
.filter-option input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.filter-sizes {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
}
.size-chip {
  cursor: pointer;
}
.size-chip input { display: none; }
.size-chip span {
  display: inline-block;
  padding: var(--sp-2) var(--sp-3);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--dur-fast);
  min-width: 42px;
  text-align: center;
}
.size-chip:hover span,
.size-chip.active span {
  border-color: var(--primary);
  background: var(--purple-50);
  color: var(--primary);
}

/* Top bar */
.shop-topbar { margin-bottom: var(--sp-6); }
.shop-sort select {
  padding: var(--sp-2) var(--sp-4);
  border: 2px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  min-width: 180px;
}
.filter-toggle { display: none; }

/* Pagination */
.pagination-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--fs-sm);
  border: 2px solid var(--border);
  transition: all var(--dur-fast);
}
.pagination-btn:hover { border-color: var(--primary); color: var(--primary); }
.pagination-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--sp-16) 0;
}
.empty-icon { font-size: 3rem; margin-bottom: var(--sp-4); }
.empty-state h3 { margin-bottom: var(--sp-2); }
.empty-state p { color: var(--text-secondary); margin-bottom: var(--sp-6); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .shop-layout { grid-template-columns: 1fr; }
  .filter-toggle { display: inline-flex; }
  .shop-sidebar {
    position: fixed;
    top: 0; left: -320px;
    width: 300px; height: 100vh;
    background: var(--white);
    z-index: 1100;
    padding: var(--sp-6);
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transition: left var(--dur-base) var(--ease-out);
  }
  .shop-sidebar.open { left: 0; }
  .sidebar-close { display: block; }
  .shop-main .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .shop-main .products-grid { grid-template-columns: 1fr; }
}