/* ==========================================================================
   DealPick - Components Styles
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background-color: #EFEFEF;
  border-color: var(--color-border-hover);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
  border-radius: var(--radius-xs);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: var(--radius-md);
  font-weight: 700;
}

.btn-coupang {
  background-color: #E32119;
  color: #FFFFFF;
  font-weight: 700;
}

.btn-coupang:hover {
  background-color: #C0140D;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

.badge-hotdeal {
  background-color: #FFF2E8;
  color: var(--color-primary);
}

.badge-goldbox {
  background-color: #FEFCBF;
  color: #975A16;
}

.badge-popular {
  background-color: #EBF8FF;
  color: #2B6CB0;
}

.badge-recommend {
  background-color: #F0FFF4;
  color: #22543D;
}

.badge-sample {
  background-color: #EDF2F7;
  color: #718096;
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px 20px;
}

@media (max-width: 1024px) {
  .product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px 16px;
  }
}

@media (max-width: 600px) {
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 12px;
  }
}

/* Product Card */
.product-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  position: relative;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-border-hover);
}

.product-card__thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background-color: var(--color-surface);
  overflow: hidden;
}

.product-card__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.product-card:hover .product-card__thumb {
  transform: scale(1.03);
}

.product-card__badges {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  z-index: 2;
}

.product-card__content {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

.product-card__category {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.product-card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 39px;
}

.product-card__price-box {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.product-card__original-price-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 12px;
  color: var(--color-text-muted);
}

.product-card__original-price {
  text-decoration: line-through;
}

.product-card__current-price-wrap {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.product-card__discount {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-danger);
}

.product-card__current-price {
  font-size: 19px;
  font-weight: 800;
  color: var(--color-text);
}

.product-card__unit {
  font-size: 14px;
  font-weight: 600;
}

.product-card__footer {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--color-text-muted);
}

/* Category Chips & Filter Bar */
.filter-bar {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.filter-bar-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.filter-result-count {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.filter-result-count span {
  color: var(--color-primary);
}

.sort-select-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.sort-select {
  height: 38px;
  padding: 0 32px 0 12px;
  font-size: 13px;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23666666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.category-chips-scroll {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}

.category-chips-scroll::-webkit-scrollbar {
  height: 4px;
}

.category-chips-scroll::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

.chip-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.chip-btn:hover {
  background-color: #EFEFEF;
  color: var(--color-text);
}

.chip-btn.active {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  border-color: var(--color-primary);
  font-weight: 700;
}

/* Category Grid (for Categories Shortcut / Category Page) */
.category-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

@media (max-width: 900px) {
  .category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 540px) {
  .category-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }
}

.category-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.category-card:hover {
  background-color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.category-card__icon {
  font-size: 24px;
  line-height: 1;
}

.category-card__info {
  display: flex;
  flex-direction: column;
}

.category-card__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
}

.category-card__desc {
  font-size: 11px;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px dashed var(--color-border);
  margin: var(--space-8) 0;
}

.empty-state__icon {
  font-size: 48px;
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
}

.empty-state__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.empty-state__desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  max-width: 400px;
  margin-inline: auto;
}

/* Error State */
.error-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
  background-color: #FFF5F5;
  border-radius: var(--radius-md);
  border: 1px solid #FEB2B2;
  margin: var(--space-8) 0;
}

.error-state__icon {
  font-size: 40px;
  margin-bottom: var(--space-3);
  color: var(--color-danger);
}

.error-state__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.error-state__desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

/* Skeleton UI */
.skeleton {
  background: linear-gradient(90deg, #F0F0F0 25%, #E4E4E4 50%, #F0F0F0 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-xs);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.skeleton-thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
}

.skeleton-line {
  height: 16px;
  width: 100%;
}

.skeleton-line-sm {
  height: 12px;
  width: 60%;
}