/* Catalog — aligned with home sage / olive / gold */
:root {
  --b-ink: #5f6b49;
  --b-ink-deep: #3d4532;
  --b-ink-soft: #6d7a56;
  --b-sage: #95a589;
  --b-cream: #d8d2c6;
  --b-cream-deep: #ece7de;
  --b-surface: #ffffff;
  --b-sand: #d8c6a8;
  --b-accent: #c4a47c;
  --b-accent-deep: #8f7348;
  --b-accent-muted: rgba(196, 164, 124, 0.22);
  --b-text: #2f3328;
  --b-muted: #6b7260;
  --b-card-border: rgba(47, 51, 40, 0.1);
  --shadow-card: 0 12px 32px rgba(47, 51, 40, 0.08);
  --shadow-section: 0 16px 44px rgba(47, 51, 40, 0.07);
  --b-radius: 16px;
  --site-bar-height: 54px;
  --page-gutter: clamp(20px, 5.5vw, 28px);
  --section-gap: 24px;
  --section-pad-x: 4px;
  --section-pad-y: 22px;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--site-bar-height) + 10px);
}

body {
  font-family: var(--font-body);
  background: var(--b-cream);
  color: var(--b-text);
  line-height: 1.55;
  padding: 0 0 32px;
}

.catalog-container {
  max-width: 1080px;
  margin: 0 auto;
  padding-left: max(var(--page-gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--page-gutter), env(safe-area-inset-right, 0px));
}

.catalog-main {
  padding-top: 16px;
  padding-bottom: 8px;
}

#catalog-root {
  display: flex;
  flex-direction: column;
  gap: var(--section-gap);
}

.site-intro-band {
  background: linear-gradient(155deg, var(--b-ink-deep) 0%, var(--b-ink) 55%, var(--b-ink-soft) 130%);
  padding: clamp(22px, 4vw, 28px) 0 clamp(20px, 3vw, 24px);
  margin-bottom: 0;
}

.site-intro-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.back-home {
  align-self: flex-start;
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 0;
  transition: color 0.2s ease;
}

.back-home:hover {
  color: var(--b-accent);
}

.site-intro-band h1 {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4.5vw, 2.15rem);
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1.12;
}

.site-intro-band p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  margin-top: 8px;
  max-width: 36em;
  line-height: 1.5;
}

.site-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  min-height: var(--site-bar-height);
  background: rgba(61, 69, 50, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 24px rgba(47, 51, 40, 0.12);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.28s var(--ease-out), opacity 0.22s ease;
}

.site-bar.is-pinned {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

body.has-pinned-bar .catalog-main {
  scroll-margin-top: var(--site-bar-height);
}

.site-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: var(--site-bar-height);
  padding: 8px 0;
}

.category-nav {
  flex: 1;
  min-width: 0;
  margin: 0;
  padding: 0;
}

.category-nav-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 4px 4px 6px;
  scroll-padding-inline-start: 4px;
  scroll-padding-inline-end: 16px;
}

.category-nav-inner::after {
  content: '';
  flex: 0 0 2px;
}

.category-nav-inner::-webkit-scrollbar {
  display: none;
}

.category-pill {
  flex: 0 0 auto;
  scroll-snap-align: start;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: background 0.22s ease, border-color 0.22s ease, color 0.22s ease, transform 0.22s var(--ease-out);
  white-space: nowrap;
}

.category-pill:hover {
  border-color: rgba(196, 164, 124, 0.55);
  background: rgba(255, 255, 255, 0.1);
}

.category-pill.is-active {
  background: var(--b-accent);
  color: var(--b-ink-deep);
  border-color: var(--b-accent);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.category-section {
  scroll-margin-top: calc(var(--site-bar-height) + 12px);
  margin: 0;
  padding: var(--section-pad-y) 18px calc(var(--section-pad-y) + 4px);
  background: var(--b-surface);
  border-radius: 22px;
  border: 1px solid var(--b-card-border);
  box-shadow: var(--shadow-section);
}

.category-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin: 0 var(--section-pad-x) 18px;
  padding: 0 4px 14px;
  border-bottom: 1px solid var(--b-card-border);
}

.category-heading-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.45rem);
  font-weight: 600;
  color: var(--b-ink-deep);
  letter-spacing: 0.01em;
}

.category-heading-text p {
  font-size: 13px;
  color: var(--b-muted);
  margin-top: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.45;
}

.category-scroll-hint {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--b-accent-deep);
  opacity: 0.85;
}

.product-track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  margin: 0 var(--section-pad-x);
  padding: 4px 4px 14px;
  scrollbar-width: thin;
  scrollbar-color: rgba(196, 164, 124, 0.45) transparent;
  scroll-padding-inline: 4px;
}

.product-track:focus-visible {
  outline: 2px solid var(--b-accent);
  outline-offset: 3px;
  border-radius: 12px;
}

.product-track::-webkit-scrollbar {
  height: 5px;
}

.product-track::-webkit-scrollbar-thumb {
  background: rgba(196, 164, 124, 0.55);
  border-radius: 999px;
}

.category-empty {
  flex: 1 1 auto;
  min-width: min(100%, 260px);
  padding: 20px;
  text-align: center;
  color: var(--b-muted);
  background: var(--b-cream-deep);
  border-radius: 14px;
  border: 1px dashed var(--b-card-border);
  font-size: 13px;
}

.product-card {
  flex: 0 0 min(78vw, 260px);
  scroll-snap-align: start;
  background: var(--b-surface);
  border-radius: var(--b-radius);
  border: 1px solid var(--b-card-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(10px);
  box-shadow: var(--shadow-card);
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out), box-shadow 0.25s ease;
}

.product-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.product-card:hover {
  box-shadow: 0 18px 40px rgba(47, 51, 40, 0.12);
}

.product-card--focus {
  outline: 3px solid var(--b-accent);
  outline-offset: 3px;
  box-shadow: 0 20px 48px rgba(47, 51, 40, 0.16);
}

@media (min-width: 640px) {
  .product-card {
    flex-basis: 272px;
  }
}

.media-section {
  background: var(--b-cream-deep);
}

.media-canvas {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
}

.media-viewport {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #fff;
}

.media-viewport img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  text-align: center;
  background: linear-gradient(145deg, var(--b-cream-deep), var(--b-sand));
}

.media-fallback span {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--b-ink-deep);
  line-height: 1.3;
}

.media-viewport.is-video {
  background: var(--b-ink-deep);
}

.media-viewport.is-video iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  max-height: 100%;
  border: none;
  display: block;
}

.media-canvas.is-video-mode .color-swatches {
  opacity: 0;
  pointer-events: none;
}

.color-swatches {
  position: absolute;
  z-index: 5;
  top: 10px;
  left: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  max-width: calc(100% - 20px);
  padding: 6px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 4px 16px rgba(47, 51, 40, 0.12);
  transition: opacity 0.2s ease;
}

.color-swatch {
  width: 24px;
  height: 24px;
  padding: 0;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--swatch, #ccc);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12), 0 2px 6px rgba(0, 0, 0, 0.15);
  cursor: pointer;
  transition: transform 0.18s var(--ease-out), outline 0.15s ease;
}

.color-swatch:hover {
  transform: scale(1.08);
}

.color-swatch[aria-selected='true'] {
  outline: 2px solid var(--b-accent-deep);
  outline-offset: 2px;
}

.color-selected-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--b-ink-soft);
  margin-top: 2px;
}

.color-selected-label[hidden] {
  display: none;
}

.media-tabs {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: 10px;
  transform: translateX(-50%);
  display: flex;
  gap: 4px;
  padding: 5px 6px;
  border-radius: 999px;
  background: rgba(47, 51, 40, 0.52);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.2);
}

.tab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.92);
  padding: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s var(--ease-out);
}

.tab-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.14);
  transform: scale(1.04);
}

.tab-btn.active {
  background: #fff;
  color: var(--b-ink-deep);
}

.tab-btn:disabled {
  opacity: 0.28;
  cursor: not-allowed;
}

.tab-icon {
  width: 18px;
  height: 18px;
  display: block;
  flex-shrink: 0;
}

.tab-icon-stroke {
  stroke: currentColor;
}

.tab-icon-youtube {
  fill: #ff0000;
}

.tab-btn.active .tab-icon-youtube,
.tab-btn:hover:not(:disabled) .tab-icon-youtube {
  fill: currentColor;
}

.tab-btn-youtube:not(.active) .tab-icon-youtube {
  fill: #ff4d4d;
}

.details-section {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex: 1;
}

.product-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--b-ink-deep);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.price-tag {
  font-size: 17px;
  font-weight: 800;
  color: var(--b-accent-deep);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.description {
  font-size: 12px;
  color: var(--b-muted);
  line-height: 1.45;
  max-height: calc(1.45em * 4.5);
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(196, 164, 124, 0.55) transparent;
  padding-right: 6px;
  margin-right: -2px;
}

.description::-webkit-scrollbar {
  width: 4px;
}

.description::-webkit-scrollbar-thumb {
  background: rgba(196, 164, 124, 0.55);
  border-radius: 999px;
}

.description::-webkit-scrollbar-track {
  background: transparent;
}

.specs-compact {
  list-style: none;
  font-size: 11px;
  color: var(--b-muted);
  line-height: 1.4;
  margin-top: 2px;
}

.specs-compact li {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.specs-compact strong {
  color: var(--b-ink-soft);
  font-weight: 600;
}

.includes-block {
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px solid var(--b-card-border);
}

.includes-heading {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--b-ink-soft);
  margin-bottom: 5px;
}

.includes-list {
  list-style: none;
  font-size: 11px;
  color: var(--b-text);
  line-height: 1.45;
}

.includes-list li {
  position: relative;
  padding-left: 14px;
}

.includes-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--b-sage);
  font-weight: 700;
  font-size: 10px;
}

.includes-note {
  margin-top: 6px;
  font-size: 10px;
  color: var(--b-muted);
  font-style: italic;
}

.btn-zalo {
  margin-top: auto;
  background: linear-gradient(180deg, #1a7cff 0%, #0068ff 100%);
  color: #fff;
  text-decoration: none;
  text-align: center;
  padding: 10px 12px;
  border-radius: 11px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(0, 104, 255, 0.28);
  transition: transform 0.2s var(--ease-out), filter 0.15s ease;
}

.btn-zalo:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.catalog-error {
  max-width: 560px;
  margin: 40px auto;
  padding: 24px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid #fecaca;
  color: #991b1b;
  font-size: 15px;
}

.catalog-error code {
  display: block;
  margin-top: 12px;
  padding: 12px;
  background: #fef2f2;
  border-radius: 8px;
  font-size: 13px;
  color: #7f1d1d;
}

.catalog-loading {
  text-align: center;
  padding: 48px;
  color: var(--b-muted);
  font-weight: 600;
}

.site-footer {
  margin-top: 36px;
  padding: clamp(28px, 5vw, 36px) 0 max(36px, env(safe-area-inset-bottom, 0px));
  background: linear-gradient(160deg, var(--b-ink-deep) 0%, var(--b-ink) 100%);
  color: rgba(255, 255, 255, 0.9);
}

.site-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@media (min-width: 640px) {
  .site-footer-inner {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

.site-footer-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
}

.site-footer-tagline {
  margin-top: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
  max-width: 28em;
  line-height: 1.5;
}

.site-footer-phone {
  font-size: clamp(1rem, 3vw, 1.15rem);
  font-weight: 700;
}

.site-footer-phone a {
  color: #fff;
  text-decoration: none;
}

.site-footer-phone a:hover {
  color: var(--b-accent);
}

.site-footer-zalo {
  display: inline-flex;
  margin-top: 12px;
  padding: 11px 20px;
  border-radius: 999px;
  background: #fff;
  color: var(--b-ink-deep);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s ease;
}

.site-footer-zalo:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}