/* ==========================================================================
   THE SECONDHAND MARKET — BROWSE / SEARCH PAGE
   Product discovery with editorial filtering.
   Depends on: tokens.css, base.css
   ========================================================================== */

/* --------------------------------------------------------------------------
   PAGE LAYOUT
   -------------------------------------------------------------------------- */

.browse-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-canvas);
}

.browse-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: var(--bg-canvas);
  border-bottom: 1px solid var(--border-hairline);
  backdrop-filter: saturate(120%) blur(6px);
  -webkit-backdrop-filter: saturate(120%) blur(6px);
}

.browse-header__inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter-mobile);
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .browse-header__inner { padding: 0 var(--gutter); }
}

.browse-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.browse-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* --------------------------------------------------------------------------
   SEARCH BAR
   -------------------------------------------------------------------------- */

.browse-search {
  position: relative;
  flex: 1;
  max-width: 560px;
}

.browse-search__input {
  width: 100%;
  height: 40px;
  padding: 0 var(--space-4) 0 40px;
  font-size: var(--fs-base);
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur-quick) var(--ease-standard),
              box-shadow var(--dur-quick) var(--ease-standard);
}

.browse-search__input::placeholder {
  color: var(--text-muted);
}

.browse-search__input:focus {
  outline: none;
  border-color: var(--ink-900);
  box-shadow: 0 0 0 3px rgba(20,20,20,0.06);
}

[data-theme="dark"] .browse-search__input:focus {
  border-color: var(--ink-50);
  box-shadow: 0 0 0 3px rgba(241,239,232,0.08);
}

.browse-search__icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.browse-search__clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border-radius: var(--radius-xs);
}

.browse-search__clear:hover {
  color: var(--text-primary);
  background: var(--bg-sunken);
}

.browse-search.has-value .browse-search__clear {
  display: inline-flex;
}

/* Search suggestions dropdown */
.browse-search__suggestions {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-modal);
  display: none;
  max-height: 320px;
  overflow-y: auto;
}

.browse-search__suggestions.is-open {
  display: block;
}

.browse-search__suggestion {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: background-color var(--dur-quick) var(--ease-standard);
}

.browse-search__suggestion:hover {
  background: var(--bg-surface-alt);
}

.browse-search__suggestion svg {
  color: var(--text-muted);
  flex-shrink: 0;
}

.browse-search__suggestion strong {
  font-weight: var(--fw-semibold);
}

.browse-search__suggestion .meta {
  margin-left: auto;
}

/* --------------------------------------------------------------------------
   CATEGORY CHIPS
   -------------------------------------------------------------------------- */

.browse-categories {
  padding: var(--space-3) var(--gutter-mobile);
  border-bottom: 1px solid var(--border-hairline);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.browse-categories::-webkit-scrollbar { display: none; }

@media (min-width: 768px) {
  .browse-categories { padding: var(--space-3) var(--gutter); }
}

.browse-categories__list {
  display: flex;
  gap: var(--space-2);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   MAIN LAYOUT — sidebar + grid
   -------------------------------------------------------------------------- */

.browse-body {
  display: grid;
  grid-template-columns: 1fr;
  flex: 1;
}

@media (min-width: 1024px) {
  .browse-body {
    grid-template-columns: 260px 1fr;
  }
}

/* --------------------------------------------------------------------------
   FILTER SIDEBAR
   -------------------------------------------------------------------------- */

.browse-filters {
  display: none;
  padding: var(--space-5);
  border-right: 1px solid var(--border-hairline);
  background: var(--bg-surface);
  overflow-y: auto;
}

@media (min-width: 1024px) {
  .browse-filters {
    display: block;
    position: sticky;
    top: var(--header-height);
    height: calc(100vh - var(--header-height));
  }
}

/* Mobile filter drawer */
.browse-filters-mobile {
  display: block;
  padding: var(--space-3) var(--gutter-mobile);
  border-bottom: 1px solid var(--border-hairline);
}

@media (min-width: 1024px) {
  .browse-filters-mobile { display: none; }
}

.browse-filters-mobile__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.browse-filters__title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}

.browse-filter-group {
  margin-bottom: var(--space-6);
}

.browse-filter-group__label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.browse-filter-group__options {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.browse-filter-group .checkbox {
  font-size: var(--fs-sm);
}

/* Price range inputs */
.price-range {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.price-range .input {
  min-height: 36px;
  font-size: var(--fs-sm);
  font-family: var(--font-mono);
}

.price-range__sep {
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

/* Active filters bar */
.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-3) 0;
}

.active-filter {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  background: var(--bg-sunken);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--dur-quick) var(--ease-standard);
}

.active-filter:hover {
  background: var(--red-100);
  color: var(--red-600);
}

.active-filter svg {
  width: 12px;
  height: 12px;
}

/* --------------------------------------------------------------------------
   RESULTS AREA
   -------------------------------------------------------------------------- */

.browse-results {
  padding: var(--space-5) var(--gutter-mobile);
}

@media (min-width: 768px) {
  .browse-results { padding: var(--space-5) var(--gutter); }
}

.browse-results__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}

.browse-results__count {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

.browse-results__count strong {
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
}

.browse-results__sort {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.browse-results__sort label {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  white-space: nowrap;
}

.browse-results__sort .select {
  min-height: 36px;
  font-size: var(--fs-sm);
  padding-right: var(--space-8);
  min-width: 160px;
}

/* --------------------------------------------------------------------------
   PRODUCT GRID (reuses landing page card styles)
   -------------------------------------------------------------------------- */

.browse-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5) var(--space-4);
}

@media (min-width: 640px) {
  .browse-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .browse-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-6) var(--space-5); }
}

@media (min-width: 1280px) {
  .browse-grid { grid-template-columns: repeat(4, 1fr); }
}

/* Reuse product card from landing.css */
.browse-grid .product {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  color: var(--text-primary);
}

.browse-grid .product__frame {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--bg-sunken);
  border: 1px solid var(--border-hairline);
}

.browse-grid .product__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-standard);
}

.browse-grid .product:hover .product__frame img {
  transform: scale(1.03);
}

.browse-grid .product__badges {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.browse-grid .product__save {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.94);
  color: var(--ink-900);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: transform var(--dur-quick) var(--ease-standard);
  backdrop-filter: blur(4px);
}

[data-theme="dark"] .browse-grid .product__save {
  background: rgba(20,20,20,0.85);
  color: var(--ink-50);
}

.browse-grid .product__save:hover { transform: scale(1.08); }

.browse-grid .product__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.browse-grid .product__title {
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  line-height: 1.35;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.browse-grid .product__price {
  font-size: var(--fs-price-md);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.015em;
  color: var(--text-primary);
  font-feature-settings: "tnum";
}

.browse-grid .product__price-currency {
  font-weight: var(--fw-medium);
  color: var(--text-tertiary);
  margin-right: 3px;
}

.browse-grid .product__seller {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

.browse-grid .product__seller strong {
  color: var(--text-secondary);
  font-weight: var(--fw-medium);
}

.browse-grid .product__seller--platform { color: var(--amber-700); }
.browse-grid .product__seller--platform strong { color: var(--amber-700); }

/* --------------------------------------------------------------------------
   PAGINATION
   -------------------------------------------------------------------------- */

.browse-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-hairline);
}

.browse-pagination__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 var(--space-3);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  transition: all var(--dur-quick) var(--ease-standard);
}

.browse-pagination__btn:hover:not(:disabled) {
  border-color: var(--ink-700);
  color: var(--text-primary);
}

.browse-pagination__btn.is-active {
  background: var(--ink-900);
  color: var(--ink-50);
  border-color: var(--ink-900);
}

[data-theme="dark"] .browse-pagination__btn.is-active {
  background: var(--ink-50);
  color: var(--ink-900);
  border-color: var(--ink-50);
}

.browse-pagination__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.browse-pagination__ellipsis {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  padding: 0 var(--space-2);
}

/* --------------------------------------------------------------------------
   EMPTY & LOADING STATES
   -------------------------------------------------------------------------- */

.browse-empty {
  grid-column: 1 / -1;
  padding: var(--space-12) var(--space-6);
  text-align: center;
}

.browse-empty__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-5);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-sunken);
  border-radius: 50%;
  color: var(--text-muted);
}

.browse-empty__title {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  letter-spacing: -0.015em;
}

.browse-empty__body {
  font-size: var(--fs-base);
  color: var(--text-secondary);
  max-width: 40ch;
  margin: 0 auto var(--space-6);
  line-height: var(--lh-relaxed);
}

/* Skeleton */
.browse-skeleton {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.browse-skeleton__frame {
  aspect-ratio: 4 / 5;
  background: var(--bg-sunken);
  border-radius: var(--radius-sm);
}

.browse-skeleton__line {
  height: 12px;
  background: var(--bg-sunken);
  border-radius: var(--radius-xs);
}

.browse-skeleton__line--short { width: 50%; }
.browse-skeleton__line--price { width: 35%; height: 16px; }