/* ==========================================================================
   catalog.css  —  Styles for /catalog
   - All logical CSS properties for RTL/LTR support
   - BEM naming: .catalog-*
   ========================================================================== */

/* --------------------------------------------------------------------------
   Page container
-------------------------------------------------------------------------- */
.catalog-container {
  max-width: 90rem;
  margin-inline: auto;
  padding-inline: 1.5rem;
  padding-block: 2.5rem 5rem;
}

@media (min-width: 640px) {
  .catalog-container {
    padding-inline: 2rem;
  }
}

@media (min-width: 1024px) {
  .catalog-container {
    padding-inline: 3rem;
  }
}

/* --------------------------------------------------------------------------
   Catalog Hero
-------------------------------------------------------------------------- */
.catalog-hero {
  margin-block-end: 2rem;
}

.catalog-hero__title {
  font-family: var(--font-sans);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--foreground);
  margin: 0 0 0.375rem;
  letter-spacing: -0.02em;
}

.catalog-hero__sub {
  font-size: 0.9375rem;
  color: var(--muted-foreground);
  margin: 0;
}

@media (min-width: 768px) {
  .catalog-hero__title {
    font-size: 2.25rem;
  }
}

/* --------------------------------------------------------------------------
   Header (search + filters + sort)
-------------------------------------------------------------------------- */
.catalog-header {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-block-end: 1.5rem;
}

/* --------------------------------------------------------------------------
   Search bar
-------------------------------------------------------------------------- */
.catalog-search {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
}

.catalog-search__wrapper {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}

.catalog-search__icon {
  position: absolute;
  inset-inline-start: 0.875rem;
  display: flex;
  align-items: center;
  pointer-events: none;
  color: var(--color-grey-40);
}

.catalog-search__input {
  width: 100%;
  border: 1.5px solid var(--border);
  border-radius: 0.625rem;
  padding-block: 0.8125rem;
  padding-inline: 2.75rem 2.75rem;
  font-size: 0.9375rem;
  color: var(--foreground);
  background: var(--color-grey-0);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.catalog-search__input::placeholder {
  color: var(--color-grey-40);
}

.catalog-search__input:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px rgba(0, 114, 79, 0.12);
}

.catalog-search__clear {
  position: absolute;
  inset-inline-end: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-grey-40);
  padding: 0;
  transition: color 0.15s;
}

.catalog-search__clear:hover {
  color: var(--color-grey-70);
}

.catalog-search__btn {
  padding-inline: 1.5rem;
  padding-block: 0.8125rem;
  background-color: var(--ring);
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  border-radius: 0.625rem;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
  white-space: nowrap;
}

.catalog-search__btn:hover {
  opacity: 0.88;
}

.catalog-search__btn:active {
  transform: scale(0.97);
}

.catalog-search__btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --------------------------------------------------------------------------
   Filters + Sort toolbar row
-------------------------------------------------------------------------- */
.catalog-header__bottom {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   Category filter pills
-------------------------------------------------------------------------- */
.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  flex: 1;
}

.catalog-filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding-inline: 0.875rem;
  padding-block: 0.5rem;
  border: 1.5px solid transparent;
  border-radius: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s, box-shadow 0.2s;
  will-change: transform;
}

.catalog-filter-pill:hover {
  transform: scale(1.03);
}

/* The × icon — hidden by default, shown on active */
.catalog-filter-pill__x {
  display: none;
}

.catalog-filter-pill.is-active .catalog-filter-pill__x {
  display: flex;
}

/* Per-category colour palette — aligned with design system variables */
.catalog-filter-pill--university {
  background-color: var(--category-university-hover);
  color: var(--category-university);
  border-color: rgba(0, 114, 79, 0.2);
}

.catalog-filter-pill--professional {
  background-color: var(--category-professional-hover);
  color: var(--category-professional);
  border-color: rgba(44, 44, 44, 0.2);
}

.catalog-filter-pill--gaming {
  background-color: var(--category-gaming-hover);
  color: var(--category-gaming);
  border-color: rgba(106, 76, 147, 0.2);
}

.catalog-filter-pill--school {
  background-color: var(--category-school-hover);
  color: var(--category-school);
  border-color: rgba(58, 93, 174, 0.2);
}

.catalog-filter-pill--personal {
  background-color: var(--category-personal-hover);
  color: var(--category-personal);
  border-color: rgba(138, 46, 61, 0.2);
}

.catalog-filter-pill--business {
  background-color: var(--category-business-hover);
  color: var(--category-business);
  border-color: rgba(148, 82, 26, 0.2);
}

.catalog-filter-pill--university.is-active {
  background-color: var(--category-university);
  color: #fff;
  border-color: var(--category-university);
  box-shadow: 0 4px 12px rgba(0, 114, 79, 0.3);
}

.catalog-filter-pill--professional.is-active {
  background-color: var(--category-professional);
  color: #fff;
  border-color: var(--category-professional);
  box-shadow: 0 4px 12px rgba(44, 44, 44, 0.3);
}

.catalog-filter-pill--gaming.is-active {
  background-color: var(--category-gaming);
  color: #fff;
  border-color: var(--category-gaming);
  box-shadow: 0 4px 12px rgba(106, 76, 147, 0.3);
}

.catalog-filter-pill--school.is-active {
  background-color: var(--category-school);
  color: #fff;
  border-color: var(--category-school);
  box-shadow: 0 4px 12px rgba(58, 93, 174, 0.3);
}

.catalog-filter-pill--personal.is-active {
  background-color: var(--category-personal);
  color: #fff;
  border-color: var(--category-personal);
  box-shadow: 0 4px 12px rgba(138, 46, 61, 0.3);
}

.catalog-filter-pill--business.is-active {
  background-color: var(--category-business);
  color: #fff;
  border-color: var(--category-business);
  box-shadow: 0 4px 12px rgba(148, 82, 26, 0.3);
}

/* --------------------------------------------------------------------------
   Sort dropdown
-------------------------------------------------------------------------- */
.catalog-sort {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.catalog-sort__label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--muted-foreground);
  white-space: nowrap;
}

.catalog-sort__select {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--foreground);
  background: var(--color-grey-0);
  border: 1.5px solid var(--border);
  border-radius: 0.5rem;
  padding-block: 0.4375rem;
  padding-inline: 0.75rem 2rem;
  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='%236B7280' stroke-width='2.5' 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 0.625rem center;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.catalog-sort__select:focus {
  border-color: var(--ring);
  box-shadow: 0 0 0 3px rgba(0, 114, 79, 0.12);
}

/* --------------------------------------------------------------------------
   Results count bar
-------------------------------------------------------------------------- */
.catalog-results-bar {
  display: flex;
  align-items: center;
  margin-block-end: 1.25rem;
  min-height: 1.5rem;
}

.catalog-results-count {
  font-size: 0.8125rem;
  color: var(--muted-foreground);
  margin: 0;
}

/* --------------------------------------------------------------------------
   Product grid
-------------------------------------------------------------------------- */
.catalog-grid-section {
  min-height: 30rem;
}

.catalog-product-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.25rem;
}

@media (min-width: 480px) {
  .catalog-product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .catalog-product-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .catalog-product-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
}

/* --------------------------------------------------------------------------
   Product card
-------------------------------------------------------------------------- */
.catalog-card {
  display: flex;
  flex-direction: column;
  background: var(--color-grey-0);
  border: 1.5px solid var(--border);
  border-radius: 0.75rem;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.2s;
  box-shadow: var(--shadow-category);
}

.catalog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--ring);
}

/* Image wrap */
.catalog-card__image-wrap {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-grey-5);
  position: relative;
}

.catalog-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease, opacity 0.2s;
}

.catalog-card:hover .catalog-card__image {
  transform: scale(1.03);
  opacity: 0.92;
}

/* Discount badge — top-start corner of image */
.catalog-card__discount {
  position: absolute;
  inset-block-start: 0.625rem;
  inset-inline-start: 0.625rem;
  background: #c55b00;
  color: #fff;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  letter-spacing: 0.02em;
  line-height: 1;
}

/* Condition grade badge — top-end corner of image */
.catalog-card__grade {
  position: absolute;
  inset-block-start: 0.625rem;
  inset-inline-end: 0.625rem;
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.25rem 0.5625rem;
  border-radius: 0.375rem;
  letter-spacing: 0.02em;
  line-height: 1;
  border: 1.5px solid transparent;
}

.catalog-card__grade--a,
.catalog-card__grade--aplus,
.catalog-card__grade--a\+ {
  background: #dcfce7;
  color: #166534;
  border-color: #bbf7d0;
}

.catalog-card__grade--b,
.catalog-card__grade--bplus,
.catalog-card__grade--b\+ {
  background: #dbeafe;
  color: #1e40af;
  border-color: #bfdbfe;
}

.catalog-card__grade--c {
  background: #fef3c7;
  color: #92400e;
  border-color: #fde68a;
}

/* Card body */
.catalog-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  padding: 0.875rem 1rem 1rem;
  flex: 1;
}

.catalog-card__brand {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ring);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.catalog-card__name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-grey-70);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

/* Spec chips */
.catalog-card__specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3125rem;
  margin-block: 0.125rem;
}

.catalog-card__spec-chip {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-grey-60);
  background: var(--color-grey-10);
  border: 1px solid var(--color-grey-20);
  border-radius: 0.3125rem;
  padding: 0.1875rem 0.4375rem;
  white-space: nowrap;
}

/* Pricing row */
.catalog-card__pricing {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-block-start: auto;
  padding-block-start: 0.375rem;
}

.catalog-card__price {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--foreground);
  margin: 0;
}

.catalog-card__orig-price {
  font-size: 0.75rem;
  color: var(--color-grey-40);
  text-decoration: line-through;
}

/* --------------------------------------------------------------------------
   Skeleton loader
-------------------------------------------------------------------------- */
.catalog-skeleton-card {
  pointer-events: none;
}

.catalog-skeleton-card__img {
  aspect-ratio: 4 / 3;
  background: linear-gradient(90deg, #f3f4f6 25%, #e5e7eb 50%, #f3f4f6 75%);
  background-size: 200% 100%;
  animation: catalog-shimmer 1.5s infinite;
}

.catalog-skeleton-card__line {
  height: 0.875rem;
  border-radius: 0.25rem;
  background: linear-gradient(90deg, #f3f4f6 25%, #e5e7eb 50%, #f3f4f6 75%);
  background-size: 200% 100%;
  animation: catalog-shimmer 1.5s infinite;
  width: 60%;
}

.catalog-skeleton-card__line--title {
  width: 85%;
  margin-block-end: 0.5rem;
}

.catalog-skeleton-card__line--price {
  width: 40%;
  margin-block-start: auto;
}

@keyframes catalog-shimmer {
  0% {
    background-position: 200% 0;
  }

  100% {
    background-position: -200% 0;
  }
}

/* --------------------------------------------------------------------------
   Empty state
-------------------------------------------------------------------------- */
.catalog-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-block: 5rem;
  text-align: center;
  gap: 0.75rem;
}

.catalog-empty__icon {
  color: var(--color-grey-30);
  margin-block-end: 0.5rem;
}

.catalog-empty__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--foreground);
  margin: 0;
}

.catalog-empty__subtitle {
  font-size: 0.9375rem;
  color: var(--muted-foreground);
  margin: 0;
}

.catalog-empty__btn {
  margin-block-start: 1.25rem;
  padding-inline: 1.5rem;
  padding-block: 0.6875rem;
  background-color: var(--ring);
  color: #fff;
  font-weight: 600;
  font-size: 0.9375rem;
  border: none;
  border-radius: 0.625rem;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}

.catalog-empty__btn:hover {
  opacity: 0.88;
}

.catalog-empty__btn:active {
  transform: scale(0.97);
}

/* --------------------------------------------------------------------------
   Error state
-------------------------------------------------------------------------- */
.catalog-error {
  padding: 1.5rem;
  background: #fef2f2;
  border: 1.5px solid #fca5a5;
  border-radius: 0.75rem;
  color: #991b1b;
  font-size: 0.9375rem;
  text-align: center;
}