/* ============================================
   RELLA — Product List Page (PLP)
   ============================================ */

.books-list-page {
  min-height: 100vh;
  background: var(--ui-bg);
  font-family: var(--ui-font);
  color: var(--ui-text);
}

/* ─── Container ─── */

.plp-container {
  max-width: var(--ui-content-max);
  margin: 0 auto;
  padding: 0 var(--ui-container-padding);
}

/* ─── Hero ─── */

.plp-hero {
  text-align: left;
  padding: 36px 0 var(--ui-space-xl);
}

.plp-hero__title {
  font-family: var(--ui-font-display);
  font-size: var(--ui-fs-h1);
  line-height: var(--ui-lh-h1);
  font-weight: 700;
  color: #2d2542;
  margin: 0 0 var(--ui-space-sm);
}

.plp-hero__subtitle {
  font-size: var(--ui-fs-body);
  line-height: var(--ui-lh-body);
  color: var(--ui-text-muted);
  margin: 0;
  max-width: 620px;
}

.plp-topic-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.plp-topic-chip {
  height: 44px;
  padding: 0 24px;
  border: 1.5px solid #3d2b6b;
  border-radius: 999px;
  background: #3d2b6b;
  color: #ffffff;
  font-family: var(--ui-font);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.plp-topic-chip:hover,
.plp-topic-chip:focus-visible,
.plp-topic-chip.is-active {
  background: #ffffff;
  color: #3d2b6b;
  border-color: #3d2b6b;
}

/* ─── Sort Bar ─── */

.plp-sort-bar {
  display: flex;
  justify-content: flex-end;
  margin-bottom: var(--ui-space-md);
}

.plp-sort-select {
  font-family: var(--ui-font);
  font-size: var(--ui-fs-caption);
  color: var(--ui-text);
  background: var(--ui-surface);
  border: 1.5px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  padding: 8px 12px;
  cursor: pointer;
  outline: none;
  transition: border-color var(--ui-duration) var(--ui-ease);
}

.plp-sort-select:focus-visible {
  border-color: var(--ui-primary-400);
  box-shadow: 0 0 0 3px var(--ui-focus-ring);
}

.plp-mobile-sort {
  display: none;
  position: relative;
}

.plp-mobile-sort__trigger {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ui-space-md);
  min-width: 112px;
  height: 40px;
  padding: 0 12px;
  border: 1.5px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-surface);
  color: var(--ui-text);
  font-family: var(--ui-font);
  font-size: var(--ui-fs-caption);
  cursor: pointer;
}

.plp-mobile-sort__trigger:focus-visible {
  border-color: var(--ui-primary-400);
  box-shadow: 0 0 0 3px var(--ui-focus-ring);
  outline: none;
}

.plp-mobile-sort__arrow {
  flex: 0 0 auto;
  width: 0;
  height: 0;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform var(--ui-duration) var(--ui-ease);
}

.plp-mobile-sort__trigger[aria-expanded="true"] .plp-mobile-sort__arrow {
  transform: rotate(180deg);
}

.plp-mobile-sort__menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 5;
  min-width: 152px;
  padding: 4px;
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-sm);
  background: var(--ui-surface);
  box-shadow: var(--ui-shadow-sm);
}

.plp-mobile-sort__menu[hidden] {
  display: none;
}

.plp-mobile-sort__option {
  display: block;
  width: 100%;
  padding: 10px 12px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--ui-text);
  font-family: var(--ui-font);
  font-size: var(--ui-fs-caption);
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
}

.plp-mobile-sort__option:hover,
.plp-mobile-sort__option:focus-visible {
  background: var(--ui-primary-50);
  outline: none;
}

.plp-mobile-sort__option.is-selected {
  background: var(--ui-primary-50);
  color: var(--ui-primary-700);
  font-weight: 700;
}

/* ─── Grid ─── */

.plp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ui-space-lg);
  padding-bottom: var(--ui-space-2xl);
}

@media (min-width: 560px) {
  .plp-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .plp-sort-select {
    display: none;
  }

  .plp-mobile-sort {
    display: block;
  }
}

@media (min-width: 960px) {
  .plp-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ─── Card ─── */

.plp-card {
  background: var(--ui-surface);
  border-radius: 2px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--ui-duration) var(--ui-ease);
}

.plp-card:hover {
  transform: translateY(-2px);
}

.plp-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
  flex: 1;
}

.plp-card__link:focus-visible {
  outline: 2px solid var(--ui-primary-400);
  outline-offset: -2px;
  border-radius: 2px;
}

.plp-card__link--disabled {
  cursor: default;
}

.plp-card[data-availability="coming-soon"]:hover,
.plp-card[data-availability="coming-soon"]:hover .plp-card__image {
  transform: none;
}

/* Image */

.plp-card__image-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--ui-ivory-100);
  overflow: hidden;
}

.plp-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s var(--ui-ease);
}

.plp-card:hover .plp-card__image {
  transform: scale(1.04);
}

/* Badge */

.plp-card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  border-radius: var(--ui-radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
}

.plp-card__badge--sale {
  background: var(--ui-primary-500);
  color: var(--ui-white);
}

.plp-card__badge--label {
  background: #3d2b6b;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(54, 38, 96, 0.16);
}

.plp-card__badge--soldout {
  background: var(--ui-text-muted);
  color: var(--ui-white);
}

.plp-card__badge--coming-soon {
  background: #6e6685;
}

/* Body */

.plp-card__body {
  padding: var(--ui-space-md);
}

.plp-card__name {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 var(--ui-space-xs);
  line-height: var(--ui-leading-tight);
}

.plp-card__subtitle {
  font-size: var(--ui-fs-caption);
  color: var(--ui-text-muted);
  margin: 0 0 var(--ui-space-sm);
  line-height: var(--ui-lh-caption);
}

/* Pricing */

.plp-card__pricing {
  display: flex;
  align-items: baseline;
  gap: var(--ui-space-sm);
}

.plp-card__compare-price {
  font-size: 0.85rem;
  color: var(--ui-text-muted);
  text-decoration: line-through;
}

.plp-card__price {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ui-text);
}

/* Retry button (error state) */

.plp-retry-btn {
  display: inline-block;
  max-width: 200px;
  margin: var(--ui-space-md) auto 0;
  padding: 12px 24px;
  font-family: var(--ui-font);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: var(--ui-radius-sm);
  cursor: pointer;
  background: var(--ui-primary-500);
  color: var(--ui-white);
  transition: background var(--ui-duration) var(--ui-ease);
}

.plp-retry-btn:hover {
  background: var(--ui-primary-600);
}

/* ─── Empty State ─── */

.plp-empty {
  text-align: center;
  padding: var(--ui-space-3xl) 0;
}

.plp-empty h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 var(--ui-space-sm);
}

.plp-empty p {
  color: var(--ui-text-muted);
  margin: 0;
}

/* ─── Loading ─── */

.plp-loading {
  text-align: center;
  padding: var(--ui-space-3xl) 0;
  color: var(--ui-text-muted);
}