/* ============================================================
   catalog.css — Step 8: Catalog Page Styles
   Mobile-first · Responsive grid · Accessible
   ============================================================ */

/* ── Custom Properties (extend root if needed) ──────────── */
:root {
  --catalog-card-radius:    10px;
  --catalog-card-shadow:    0 2px 8px rgba(0, 0, 0, 0.07);
  --catalog-card-shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.13);
  --catalog-pill-radius:    999px;
  --catalog-accent:         #1a73e8;       /* primary blue */
  --catalog-accent-light:   #e8f0fe;       /* pill active bg */
  --catalog-text-primary:   #1e1e1e;
  --catalog-text-secondary: #5f6368;
  --catalog-text-muted:     #80868b;
  --catalog-bg-page:        #f5f7fa;
  --catalog-bg-card:        #ffffff;
  --catalog-border:         #dadce0;
  --catalog-price-color:    #0a6f2f;       /* MYR green */
  --catalog-transition:     0.22s ease;
}

/* ── Main Layout ─────────────────────────────────────────── */
.catalog-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px 48px;
  min-height: 60vh;
}

/* ── Page Header ─────────────────────────────────────────── */
.catalog-header {
  margin-bottom: 28px;
  text-align: center;
}

.catalog-title {
  font-size: 1.75rem;          /* 28px base */
  font-weight: 700;
  color: var(--catalog-text-primary);
  margin: 0 0 6px;
  letter-spacing: -0.3px;
}

.catalog-subtitle {
  font-size: 0.9rem;
  color: var(--catalog-text-secondary);
  margin: 0;
}

/* ── Controls Bar ────────────────────────────────────────── */
.catalog-controls {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
  align-items: flex-start;
}

/* Category filter row */
.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.filter-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--catalog-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.filter-pill {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--catalog-pill-radius);
  border: 1.5px solid var(--catalog-border);
  background: var(--catalog-bg-card);
  color: var(--catalog-text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--catalog-transition);
  white-space: nowrap;
}

.filter-pill:hover {
  border-color: var(--catalog-accent);
  color: var(--catalog-accent);
  background: var(--catalog-accent-light);
}

.filter-pill--active {
  background: var(--catalog-accent);
  border-color: var(--catalog-accent);
  color: #ffffff;
  font-weight: 600;
}

.filter-pill--active:hover {
  background: #1558b0;
  border-color: #1558b0;
  color: #ffffff;
}

/* Sort dropdown */
.catalog-sort {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;  /* push right on wider screens */
}

.sort-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--catalog-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.sort-select {
  appearance: none;
  -webkit-appearance: none;
  padding: 7px 32px 7px 12px;
  border: 1.5px solid var(--catalog-border);
  border-radius: 6px;
  background-color: var(--catalog-bg-card);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%235f6368'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  color: var(--catalog-text-primary);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--catalog-transition);
  min-width: 200px;
}

.sort-select:focus {
  outline: none;
  border-color: var(--catalog-accent);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.18);
}

/* ── Product Grid (mobile-first) ────────────────────────── */
.catalog-grid {
  display: grid;
  grid-template-columns: 1fr;            /* 1 col on mobile */
  gap: 20px;
}

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

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

/* 4 columns ≥ 1024px */
@media (min-width: 1024px) {
  .catalog-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ── Product Card ────────────────────────────────────────── */
.product-card {
  background: var(--catalog-bg-card);
  border-radius: var(--catalog-card-radius);
  box-shadow: var(--catalog-card-shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--catalog-transition), transform var(--catalog-transition);
}

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

/* Thumbnail container — fixed aspect ratio */
.product-card__image {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #f1f3f4;
}

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

.product-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

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

/* Card body */
.product-card__body {
  padding: 14px 16px 18px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-card__category {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--catalog-accent);
  margin-bottom: 6px;
}

.product-card__name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--catalog-text-primary);
  margin: 0 0 6px;
  line-height: 1.35;
  /* 2-line clamp */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card__name-link {
  color: inherit;
  text-decoration: none;
}

.product-card__name-link:hover {
  color: var(--catalog-accent);
}

.product-card__desc {
  font-size: 0.8rem;
  color: var(--catalog-text-secondary);
  line-height: 1.45;
  margin: 0 0 10px;
  flex-grow: 1;
  /* 3-line clamp */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-card__footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.product-card__price {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--catalog-price-color);
  letter-spacing: -0.2px;
}

.product-card__actions {
  display: flex;
  gap: 8px;
}

.product-card__detail-link,
.product-card__cart-btn {
  flex: 1;
  min-height: 36px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  text-align: center;
}

.product-card__detail-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--catalog-border);
  color: var(--catalog-text-secondary);
  text-decoration: none;
  background: #ffffff;
}

.product-card__detail-link:hover {
  border-color: var(--catalog-accent);
  color: var(--catalog-accent);
}

.product-card__cart-form {
  flex: 1;
  margin: 0;
}

.product-card__cart-btn {
  width: 100%;
  border: 1px solid var(--catalog-accent);
  background: var(--catalog-accent);
  color: #ffffff;
  cursor: pointer;
  transition: all var(--catalog-transition);
}

.product-card__cart-btn:hover {
  background: #1558b0;
  border-color: #1558b0;
}

/* ── Empty State ─────────────────────────────────────────── */
.catalog-empty {
  grid-column: 1 / -1;         /* span full width */
  text-align: center;
  padding: 64px 24px;
}

.catalog-empty__icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.catalog-empty__title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--catalog-text-primary);
  margin: 0 0 8px;
}

.catalog-empty__text {
  font-size: 0.88rem;
  color: var(--catalog-text-secondary);
  margin: 0;
}

.catalog-empty__text a {
  color: var(--catalog-accent);
  text-decoration: none;
  font-weight: 500;
}

.catalog-empty__text a:hover {
  text-decoration: underline;
}

/* ── Pagination ──────────────────────────────────────────── */
.catalog-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 40px;
}

.pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  border-radius: 6px;
  border: 1.5px solid var(--catalog-border);
  background: var(--catalog-bg-card);
  color: var(--catalog-text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--catalog-transition);
  cursor: pointer;
  user-select: none;
}

.pagination__btn:hover {
  border-color: var(--catalog-accent);
  color: var(--catalog-accent);
  background: var(--catalog-accent-light);
}

.pagination__btn--active {
  background: var(--catalog-accent);
  border-color: var(--catalog-accent);
  color: #ffffff;
  font-weight: 600;
  cursor: default;
}

.pagination__btn--active:hover {
  background: var(--catalog-accent);
  color: #ffffff;
}

.pagination__btn--nav {
  padding: 0 14px;
  font-weight: 500;
}

.pagination__btn--disabled {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

.pagination__ellipsis {
  color: var(--catalog-text-muted);
  font-size: 0.9rem;
  padding: 0 2px;
  user-select: none;
}

/* ── Responsive Adjustments ──────────────────────────────── */
@media (min-width: 768px) {
  .catalog-main {
    padding: 36px 24px 64px;
  }

  .catalog-header {
    text-align: left;
    margin-bottom: 32px;
  }

  .catalog-title {
    font-size: 2.1rem;
  }

  .catalog-controls {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .catalog-sort {
    margin-left: 0;
  }
}

@media (min-width: 1024px) {
  .catalog-main {
    padding: 40px 32px 72px;
  }

  .catalog-grid {
    gap: 24px;
  }
}