/* ==========================================================================
   Vàng tích lũy — premium gold investment showcase
   Palette: #9d221d · #c89b3c · #f8f4ed · #ffffff
   Responsive typography + card scale (mobile → desktop)
   ========================================================================== */
.vtl-page {
  --vtl-red: #9d221d;
  --vtl-red-deep: #7a1a16;
  --vtl-gold: #c89b3c;
  --vtl-gold-text: #6b4f28;
  --vtl-bg: #f8f4ed;
  --vtl-card: #ffffff;
  --vtl-muted: #7a7268;
  --vtl-radius: 14px;
  --vtl-radius-tab: 12px 12px 0 0;
  --vtl-shadow-soft: 0 4px 24px rgba(26, 22, 18, 0.06);
  --vtl-shadow-tab-active: 0 6px 20px rgba(157, 34, 29, 0.22);
  --vtl-ease: cubic-bezier(0.32, 0.72, 0, 1);


  /* Card — fluid between mobile 2-col and desktop 250px */
  --vtl-card-size: clamp(9.5rem, calc((100vw - 2.5rem - 12px) / 2), 15.625rem);
  --vtl-card-gap: clamp(0.5rem, 1.2vw, 0.625rem);


  /* Typography — mobile-first, scales up on tablet/desktop */
  --vtl-fs-tab: clamp(0.8125rem, 0.72rem + 0.45vw, 0.986rem);
  --vtl-fs-title: clamp(1.2rem, 0.95rem + 1.35vw, 1.798rem);
  --vtl-fs-desc: clamp(0.8125rem, 0.78rem + 0.28vw, 0.941rem);
  --vtl-fs-filter: clamp(0.8125rem, 0.78rem + 0.25vw, 0.965rem);
  --vtl-fs-card-name: clamp(0.78rem, 0.72rem + 0.32vw, 0.891rem);
  --vtl-fs-card-weight: clamp(0.72rem, 0.68rem + 0.22vw, 0.824rem);
  --vtl-fs-card-price: clamp(0.875rem, 0.8rem + 0.38vw, 1.031rem);
  --vtl-fs-empty: clamp(0.8125rem, 0.78rem + 0.22vw, 0.984rem);


  /* Tab chrome */
  --vtl-tab-pad-y: clamp(0.7rem, 0.55rem + 0.45vw, 0.95rem);
  --vtl-tab-pad-x: clamp(0.95rem, 0.7rem + 1.1vw, 1.65rem);
  --vtl-tab-min-h: clamp(3.75rem, 3.2rem + 1.8vw, 4.75rem);
  --vtl-tab-min-w: clamp(9.5rem, 8rem + 6vw, 12.5rem);
  --vtl-tab-logo: clamp(1.75rem, 1.45rem + 0.9vw, 2.375rem);


  /* Brand head */
  --vtl-brand-logo: clamp(2.75rem, 2.35rem + 1.4vw, 3.5rem);
  --vtl-content-pad-y: clamp(1.15rem, 0.9rem + 1vw, 1.75rem);
  --vtl-content-pad-x: clamp(0.85rem, 0.65rem + 1vw, 1.25rem);


  background: var(--vtl-bg);
  padding: clamp(0.75rem, 0.5rem + 1vw, 1.25rem) 0 clamp(1.25rem, 1rem + 1vw, 2rem);
  min-height: 50vh;
  width: 100%;
}


/* Category switcher — hidden on this page */
.vtl-subnav,
.vtl-subnav--hidden {
  display: none !important;
}


/* Main panel — contained like homepage featured section */
.vtl-showcase {
  width: 100%;
  margin: 0;
  padding: 0;
}


.vtl-showcase__inner {
  padding-left: var(--tlkv-container-pad, 1rem);
  padding-right: var(--tlkv-container-pad, 1rem);
}


.vtl-showcase__panel {
  background: var(--vtl-card);
  border-radius: var(--vtl-radius);
  box-shadow: var(--vtl-shadow-soft);
  border: 1px solid rgba(200, 155, 60, 0.14);
  overflow: hidden;
  min-height: 360px;
  width: 100%;
  max-width: 100%;
}


.vtl-showcase__panel.is-loading {
  opacity: 0.72;
  pointer-events: none;
}


/* Brand tabs */
.vtl-brand-tabs {
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  gap: 0;
  padding: clamp(0.85rem, 0.7rem + 0.8vw, 1.35rem) var(--vtl-content-pad-x) 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}


.vtl-brand-tabs::-webkit-scrollbar {
  display: none;
}


.vtl-brand-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: clamp(0.45rem, 0.35rem + 0.35vw, 0.65rem);
  padding: var(--vtl-tab-pad-y) var(--vtl-tab-pad-x);
  min-height: var(--vtl-tab-min-h);
  min-width: var(--vtl-tab-min-w);
  border: none;
  border-radius: var(--vtl-radius-tab);
  background: var(--vtl-bg);
  color: var(--vtl-gold-text);
  font-size: var(--vtl-fs-tab);
  line-height: 1.25;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(26, 22, 18, 0.04);
  transition:
    background 0.3s var(--vtl-ease),
    color 0.3s var(--vtl-ease),
    box-shadow 0.3s var(--vtl-ease),
    transform 0.3s var(--vtl-ease);
}


.vtl-brand-tab + .vtl-brand-tab {
  margin-left: 3px;
}


.vtl-brand-tab:hover:not(.is-active) {
  background: #f3ede4;
  color: var(--vtl-red);
}


.vtl-brand-tab.is-active {
  background: linear-gradient(180deg, var(--vtl-red) 0%, var(--vtl-red-deep) 100%);
  color: #fff;
  box-shadow: var(--vtl-shadow-tab-active);
  transform: translateY(-1px);
}


.vtl-brand-tab__logo {
  width: var(--vtl-tab-logo);
  height: var(--vtl-tab-logo);
  object-fit: contain;
  flex-shrink: 0;
}

.vtl-brand-tab__logo.tlkv-brand-logo-plate {
  padding: 5px;
  border-radius: 8px;
  box-sizing: border-box;
}

.vtl-brand-tab.is-active .vtl-brand-tab__logo.tlkv-brand-logo-plate {
  background: transparent;
  padding: 0;
}


.vtl-brand-tab.is-active .vtl-brand-tab__logo {
  filter: brightness(1.15);
}


/* Brand content area */
#vtl-brand-content {
  padding: var(--vtl-content-pad-y) var(--vtl-content-pad-x);
}


.vtl-brand-view {
  animation: vtl-fade-in 0.35s var(--vtl-ease);
}


@keyframes vtl-fade-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


@media (prefers-reduced-motion: reduce) {
  .vtl-brand-view {
    animation: none;
  }


  .vtl-product-card {
    transition: none;
  }
}


.vtl-brand-view__head {
  display: flex;
  align-items: flex-start;
  gap: clamp(0.75rem, 0.55rem + 0.6vw, 1rem);
  margin-bottom: clamp(0.95rem, 0.75rem + 0.6vw, 1.25rem);
  padding-bottom: clamp(0.75rem, 0.6rem + 0.5vw, 1rem);
  border-bottom: 1px solid rgba(200, 155, 60, 0.15);
}


.vtl-brand-view__logo {
  width: var(--vtl-brand-logo);
  height: var(--vtl-brand-logo);
  object-fit: contain;
  flex-shrink: 0;
  padding: 0.25rem;
  border-radius: 10px;
  background: var(--vtl-bg);
}

.vtl-brand-view__logo.tlkv-brand-logo-plate {
  padding: 0.55rem;
  background: var(--tlkv-brand-logo-plate, #8c0003);
}


.vtl-brand-view__copy {
  flex: 1;
  min-width: 0;
}


.vtl-brand-view__title {
  margin: 0 0 0.35rem;
  font-size: var(--vtl-fs-title);
  font-weight: 700;
  color: var(--vtl-red);
  letter-spacing: 0.01em;
  line-height: 1.15;
}


.vtl-brand-view__desc {
  margin: 0;
  max-width: 52ch;
  font-size: var(--vtl-fs-desc);
  line-height: 1.55;
  color: #000;
}


/* Filter toolbar — search + sort only */
.vtl-filter-toolbar {
  margin: 0 0 clamp(0.95rem, 0.75rem + 0.6vw, 1.25rem);
  max-width: 100%;
}


.vtl-filter-toolbar__row {
  margin-bottom: 0;
}


.vtl-filter-toolbar input[type="search"],
.vtl-filter-toolbar select {
  font-size: var(--vtl-fs-filter);
  line-height: 1.35;
  color: #000;
}


.vtl-filter-toolbar input[type="search"] {
  flex: 1 1 220px;
}


.vtl-filter-toolbar select {
  flex: 0 1 180px;
}


/* Product grid */
.vtl-product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--vtl-card-size), 1fr));
  gap: var(--vtl-card-gap);
  list-style: none;
  margin: 0;
  padding: 0;
  justify-content: start;
}


.vtl-product-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: var(--vtl-card-size);
  height: 100%;
  background: var(--vtl-card);
  border-radius: 6px;
  border: 1px solid rgba(201, 161, 74, 0.16);
  box-shadow: 0 4px 18px rgba(26, 26, 26, 0.045);
  overflow: hidden;
  transition: transform 0.35s var(--vtl-ease), box-shadow 0.35s var(--vtl-ease);
}


.vtl-product-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(26, 26, 26, 0.08);
}


.vtl-product-card__media {
  aspect-ratio: 1 / 0.88;
  background: linear-gradient(160deg, #faf7f1 0%, #f3ece2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(0.5rem, 0.4rem + 0.35vw, 0.75rem);
}


.vtl-product-card__img {
  width: 100%;
  height: 100%;
  max-height: calc(var(--vtl-card-size) * 0.88 - 1.5rem);
  object-fit: contain;
}


.vtl-product-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: clamp(0.6rem, 0.5rem + 0.35vw, 0.75rem) clamp(0.5rem, 0.42rem + 0.3vw, 0.65rem)
    clamp(0.65rem, 0.55rem + 0.35vw, 0.85rem);
  text-align: center;
  gap: 0.2rem;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}


.vtl-product-card__name {
  margin: 0;
  font-size: var(--vtl-fs-card-name);
  font-weight: 600;
  font-family: inherit;
  color: #000;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: calc(2 * 1.35em);
}


.vtl-product-card__weight {
  margin: 0;
  font-size: var(--vtl-fs-card-weight);
  font-family: inherit;
  color: #000;
  line-height: 1.3;
}


.vtl-product-card__price {
  margin: 0.3rem 0 0;
  font-size: var(--vtl-fs-card-price);
  font-family: inherit;
  font-weight: 700;
  color: var(--vtl-gold);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.01em;
  line-height: 1.25;
}


.vtl-empty {
  margin: 0;
  padding: clamp(1.75rem, 1.25rem + 1.5vw, 2.5rem) 1rem;
  text-align: center;
  font-size: var(--vtl-fs-empty);
  line-height: 1.5;
  color: var(--vtl-muted);
}


.vtl-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}


/* Tablet — match homepage card cap */
@media (min-width: 768px) {
  .vtl-page {
    --vtl-card-size: clamp(10.5rem, calc((100vw - 4rem - 24px) / 4), 14.75rem);
  }
}


@media (min-width: 992px) {
  .vtl-page {
    --vtl-card-size: clamp(12rem, 11rem + 1.2vw, 15.625rem);
  }
}


@media (min-width: 1200px) {
  .vtl-page {
    --vtl-card-size: 15.625rem;
  }
}


/* Mobile — 2-column grid, full card width */
@media (max-width: 767.98px) {
  .vtl-showcase__inner {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }


  .vtl-product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(0.625rem, 2.5vw, 0.75rem);
  }


  .vtl-product-card {
    max-width: none;
  }


  .vtl-filter-toolbar input[type="search"],
  .vtl-filter-toolbar select {
    flex: 1 1 100%;
    min-width: 0;
  }
}