/*
FILE SOURCE:
static/css/pages/category_page.css

PURPOSE:
- Modern category page design.
- Uses default variables from skeleton_base.css.
- Compatible with cards rendered by static/js/pages/category_page.js.
*/

/* ===========================================================
   PAGE
=========================================================== */

.category-page {
  width: 100%;
  background:
    radial-gradient(circle at top left, rgba(185, 130, 47, 0.11), transparent 34rem),
    linear-gradient(180deg, var(--color-bg), #fffaf3 58%, var(--color-bg));
  color: var(--color-text);
}

/* ===========================================================
   HERO
=========================================================== */

.category-hero {
  width: 100%;
  padding: clamp(1.4rem, 3vw, 3rem) clamp(1rem, 3vw, 2rem) clamp(1.2rem, 2vw, 2.2rem);
}

.category-hero-inner {
  width: min(100%, var(--page-wide-width));
  margin: 0 auto;
  padding: clamp(1.2rem, 3vw, 2.4rem);
  border: 1px solid rgba(185, 130, 47, 0.24);
  border-radius: 1.4rem;
  background:
    linear-gradient(135deg, rgba(43, 33, 24, 0.94), rgba(58, 43, 32, 0.9)),
    radial-gradient(circle at top right, rgba(185, 130, 47, 0.32), transparent 28rem);
  box-shadow: 0 1rem 2.5rem rgba(43, 33, 24, 0.14);
  color: #fffaf0;
  overflow: hidden;
}

.category-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: clamp(1rem, 2vw, 1.4rem);
  font-size: 0.88rem;
  color: rgba(255, 250, 240, 0.72);
}

.category-breadcrumb a {
  color: rgba(255, 250, 240, 0.92);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 250, 240, 0.35);
}

.category-breadcrumb a:hover {
  color: #fff;
  border-bottom-color: var(--color-accent);
}

.category-title-wrap {
  max-width: 48rem;
}

.category-kicker {
  margin: 0 0 0.55rem;
  color: #f2c980;
  font-size: clamp(0.78rem, 1vw, 0.92rem);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.category-title-wrap h1 {
  margin: 0;
  font-size: clamp(1.9rem, 5vw, 4.2rem);
  line-height: 1.05;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.category-intro {
  max-width: 42rem;
  margin: clamp(0.8rem, 2vw, 1.1rem) 0 0;
  color: rgba(255, 250, 240, 0.82);
  font-size: clamp(0.96rem, 1.45vw, 1.12rem);
  line-height: 1.65;
}


.category-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 7.8rem));
  gap: 0.55rem;
  margin-top: clamp(0.9rem, 1.6vw, 1.25rem);
}

.category-summary-card {
  padding: 0.58rem 0.7rem;
  border: 1px solid rgba(255, 250, 240, 0.16);
  border-radius: 0.78rem;
  background: rgba(255, 250, 240, 0.08);
  backdrop-filter: blur(8px);
}

.category-summary-card span {
  display: block;
  margin-bottom: 0.12rem;
  font-size: 0.68rem;
  line-height: 1.15;
  color: rgba(255, 250, 240, 0.68);
}

.category-summary-card strong {
  display: block;
  color: #fff;
  font-size: 0.95rem;
  line-height: 1.1;
  font-weight: 700;
}




.category-summary-card span {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.78rem;
  color: rgba(255, 250, 240, 0.68);
}

.category-summary-card strong {
  display: block;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
}

/* ===========================================================
   PRODUCTS SECTION
=========================================================== */

.category-products {
  width: min(100%, var(--page-wide-width));
  margin: 0 auto;
  padding: clamp(0.8rem, 2.5vw, 2rem) clamp(1rem, 3vw, 2rem) clamp(2.2rem, 4vw, 4rem);
}

.category-products-toolbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: clamp(1rem, 2vw, 1.4rem);
}

.category-toolbar-label {
  margin: 0 0 0.25rem;
  color: var(--color-accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.category-products-toolbar h2 {
  margin: 0;
  color: var(--color-primary);
  font-size: clamp(1.35rem, 2.4vw, 2.2rem);
  line-height: 1.12;
}

.category-page-indicator {
  flex: 0 0 auto;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--color-muted);
  font-size: 0.86rem;
  white-space: nowrap;
}

/* ===========================================================
   GRID
=========================================================== */

.items_container {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.7rem, 2vw, 1.15rem);
  align-items: stretch;
}

.category-loading,
.items_container > p {
  grid-column: 1 / -1;
  margin: 0;
  padding: 2rem;
  border: 1px dashed var(--color-border);
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.7);
  color: var(--color-muted);
  text-align: center;
}

/* ===========================================================
   CARD
=========================================================== */

.item_card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100%;
  overflow: hidden;
  border: 1px solid rgba(232, 222, 208, 0.95);
  border-radius: 1.1rem;
  background: var(--color-card);
  box-shadow: 0 0.45rem 1.25rem rgba(43, 33, 24, 0.08);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.item_card:hover {
  transform: translateY(-0.22rem);
  border-color: rgba(185, 130, 47, 0.52);
  box-shadow: 0 0.85rem 2rem rgba(43, 33, 24, 0.14);
}

.item_card_img {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background:
    linear-gradient(135deg, #fbf4e9, #fffaf3);
}

.item_card_img a {
  display: block;
  width: 100%;
  height: 100%;
}

.item_card_img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 260ms ease;
}

.item_card:hover .item_card_img img {
  transform: scale(1.045);
}

/* ===========================================================
   CARD TEXT
=========================================================== */

.item_card_name {
  padding: 0.8rem 0.82rem 0.25rem;
  min-height: 3.35rem;
}

.item_card_name a {
  display: -webkit-box;
  color: var(--color-primary);
  font-size: clamp(0.9rem, 1.4vw, 1.02rem);
  font-weight: 700;
  line-height: 1.28;
  text-decoration: none;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
}

.item_card_name a:hover {
  color: var(--color-accent-dark);
}

.item_card_meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  padding: 0.15rem 0.82rem 0.45rem;
}

.item_grade_badge,
.item_unit_badge {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 0.22rem 0.48rem;
  border-radius: 999px;
  font-size: clamp(0.68rem, 1.2vw, 0.78rem);
  line-height: 1.25;
  white-space: normal;
}

.item_grade_badge {
  border: 1px solid rgba(185, 130, 47, 0.28);
  background: rgba(185, 130, 47, 0.1);
  color: var(--color-accent-dark);
}

.item_unit_badge {
  border: 1px solid rgba(78, 96, 69, 0.24);
  background: rgba(78, 96, 69, 0.08);
  color: var(--color-natural);
}

.item_card_desc {
  display: -webkit-box;
  min-height: 2.55rem;
  padding: 0 0.82rem;
  color: var(--color-muted);
  font-size: clamp(0.78rem, 1.25vw, 0.9rem);
  line-height: 1.42;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
}

/* ===========================================================
   PRICE
=========================================================== */

.item_card_price {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.55rem;
  min-height: 3.1rem;
  padding: 0.65rem 0.82rem 0.35rem;
  margin-top: auto;
}

.card_promo_span {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.55rem;
}

.card_promo_price,
.fix_price {
  color: var(--color-primary);
  font-size: clamp(0.95rem, 1.45vw, 1.08rem);
  font-weight: 800;
}

.card_old_price {
  color: var(--color-muted);
  font-size: clamp(0.78rem, 1.2vw, 0.88rem);
  text-decoration: line-through;
}

.discount_percent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.2rem 0.45rem;
  border-radius: 999px;
  background: var(--color-natural);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 700;
}

/* ===========================================================
   ACTION
=========================================================== */

.item_card_action {
  display: grid;
  grid-template-columns: 4.2rem minmax(5.2rem, 1fr) 2.6rem;
  align-items: center;
  gap: 0.45rem;
  padding: 0.72rem 0.82rem 0.85rem;
  border-top: 1px solid rgba(232, 222, 208, 0.8);
  background: linear-gradient(180deg, rgba(250, 247, 241, 0.48), rgba(250, 247, 241, 0.95));
}

.qty_input {
  width: 100%;
  min-width: 0;
  height: 2.25rem;
  border: 1px solid var(--color-border);
  border-radius: 0.7rem;
  background: #fff;
  color: var(--color-text);
  font-size: 0.9rem;
  text-align: center;
  outline: none;
}

.qty_input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(185, 130, 47, 0.14);
}

.qty_available {
  min-width: 0;
  color: var(--color-muted);
  font-size: clamp(0.72rem, 1vw, 0.84rem);
  line-height: 1.25;
  white-space: normal;
  overflow: visible;
  text-overflow: unset;
}

.add-to-cart {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.25rem;

  border: none;
  border-radius: 0.72rem;

  background: linear-gradient(135deg, var(--color-button), var(--color-button-dark));
  color: var(--color-button-text);

  box-shadow: 0 0.35rem 0.85rem rgba(63, 90, 54, 0.24);

  cursor: pointer;

  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    filter 160ms ease;
}

.add-to-cart:hover {
  transform: translateY(-0.12rem);
  filter: brightness(1.05);
  box-shadow: 0 0.55rem 1.1rem rgba(63, 90, 54, 0.34);
}

.add-to-cart:active {
  transform: translateY(0);
  box-shadow: 0 0.25rem 0.65rem rgba(63, 90, 54, 0.24);
}

.add-to-cart:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.add-to-cart i {
  color: inherit;
  font-size: 0.95rem;
  line-height: 1;
}

.sold-out {
  grid-column: 1 / -1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  border: 1px solid rgba(122, 106, 88, 0.24);
  border-radius: 0.72rem;
  background: rgba(122, 106, 88, 0.08);
  color: var(--color-muted);
  font-weight: 700;
}

/* ===========================================================
   PAGINATION
=========================================================== */

.page-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.3rem, 3vw, 2.2rem);
}

.next-page-btn {
  min-width: 9rem;
  padding: 0.78rem 1.15rem;
  border: 1px solid rgba(185, 130, 47, 0.35);
  border-radius: 999px;
  background: var(--color-primary);
  color: #fffaf0;
  font-family: inherit;
  font-size: 0.96rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease;
}

.next-page-btn:hover {
  transform: translateY(-0.12rem);
  background: var(--color-accent-dark);
  box-shadow: 0 0.55rem 1.25rem rgba(43, 33, 24, 0.18);
}

/* ===========================================================
   TOAST
=========================================================== */

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.2rem;
  z-index: 9999;
  transform: translate(-50%, 1rem);
  width: min(calc(100% - 2rem), 24rem);
  padding: 0.85rem 1rem;
  border-radius: 999px;
  background: rgba(43, 33, 24, 0.96);
  color: #fffaf0;
  text-align: center;
  box-shadow: 0 0.85rem 2rem rgba(43, 33, 24, 0.24);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ===========================================================
   RESPONSIVE
=========================================================== */

@media (min-width: 580px) {
  .items_container {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .items_container {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 1180px - 1439px
   Keep 4 columns so product cards have enough width.
   This prevents stock text like "Tồn kho: 100" from being cut off. */
@media (min-width: 1180px) and (max-width: 1439px) {
  .items_container {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 1440px - 1799px
   Use 5 columns only when the screen is wide enough. */
@media (min-width: 1440px) and (max-width: 1799px) {
  .items_container {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* 1800px+
   Keep 5 columns because the page container is max 1280px.
   6 columns makes each card too narrow and breaks stock/action layout. */
@media (min-width: 1800px) {
  .items_container {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .category-hero {
    padding: 1rem 0.75rem 0.75rem;
  }

  .category-hero-inner {
    border-radius: 1.1rem;
  }




  .category-summary {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.45rem;
    margin-top: 0.9rem;
  }

  .category-summary-card {
    padding: 0.58rem 0.35rem;
    border-radius: 0.72rem;
    text-align: center;
  }

  .category-summary-card span {
    margin-bottom: 0.12rem;
    font-size: 0.6rem;
    line-height: 1.15;
    letter-spacing: 0.01em;
  }

  .category-summary-card strong {
    font-size: 0.92rem;
    line-height: 1.05;
  }

  .item_card_desc {
    display: -webkit-box;

    /* exactly 2 lines on mobile */
    line-height: 1.38;
    height: calc(2 * 1.38em);
    min-height: calc(2 * 1.38em);
    max-height: calc(2 * 1.38em);

    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    line-clamp: 2;

    padding-top: 0;
    padding-bottom: 0;
  }


  .category-products {
    padding-inline: 0.75rem;
  }

  .category-products-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .category-page-indicator {
    align-self: flex-start;
  }

  .item_card {
    border-radius: 0.9rem;
  }

  .item_card_name {
    padding: 0.62rem 0.62rem 0.2rem;
    min-height: 3.1rem;
  }

  .item_card_meta,
  .item_card_desc,
  .item_card_price {
    padding-left: 0.62rem;
    padding-right: 0.62rem;
  }

  .item_card_action {
    grid-template-columns: 1fr;
    gap: 0.4rem;
    padding: 0.62rem;
  }

  .qty_input,
  .add-to-cart {
    width: 100%;
  }

  .qty_available {
    text-align: center;
  }
}

@media (max-width: 355px) {
  .items_container {
    gap: 0.55rem;
  }

  .category-products {
    padding-inline: 0.55rem;
  }

  .item_card_name a {
    font-size: 0.82rem;
  }

  .item_card_desc {
    font-size: 0.72rem;
  }

  .card_promo_price,
  .fix_price {
    font-size: 0.86rem;
  }

  .card_old_price {
    font-size: 0.72rem;
  }

  .item_card_desc {
    line-height: 1.34;
    height: calc(2 * 1.34em);
    min-height: calc(2 * 1.34em);
    max-height: calc(2 * 1.34em);
  }


}

/* ===========================================================
   TABLET FIX: 900px - 1023px
   Cards are 4 columns here, so action row is narrow.
   Put stock text on its own row to prevent cart button clipping.
=========================================================== */
@media (min-width: 900px) and (max-width: 1023px) {
  .item_card_action {
    grid-template-columns: minmax(0, 1fr) 2.45rem;
    grid-template-areas:
      "qty cart"
      "stock stock";
    gap: 0.42rem;
    padding: 0.62rem;
  }

  .qty_input {
    grid-area: qty;
    height: 2.2rem;
  }

  .qty_available {
    grid-area: stock;
    width: 100%;
    text-align: center;
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
    font-size: 0.76rem;
    line-height: 1.2;
  }

  .add-to-cart {
    grid-area: cart;
    width: 2.45rem;
    height: 2.2rem;
    justify-self: end;
  }

  .sold-out {
    grid-column: 1 / -1;
    grid-area: auto;
  }
}