/* ============== Brands index ============== */
.brands-page {
  --brand-accent: var(--c-gold);
}

.brands-intro {
  max-width: 42rem;
}

.brands-index__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .brands-index__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }
}

@media (min-width: 1100px) {
  .brands-index__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .brands-index__grid .brand-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: calc(50% - 0.875rem);
    justify-self: center;
  }
}

.brand-card {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out),
    border-color 0.35s var(--ease-out);
}

.brand-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: color-mix(in srgb, var(--brand-card-accent, var(--c-emerald-500)) 35%, transparent);
}

.brand-card__visual {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--c-navy-50);
  overflow: hidden;
}

.brand-card__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

/* Logo / emblem vuông — thu nhỏ, căn giữa (Aristino, v.v.) */
.brand-card__visual--contain img {
  object-fit: contain;
  object-position: center;
  padding: clamp(1.25rem, 5vw, 2.5rem);
  box-sizing: border-box;
}

.brand-card__visual--contain:hover img {
  transform: scale(1.02);
}

.brand-card__logo-wrap {
  position: absolute;
  left: 1.25rem;
  bottom: 1.25rem;
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-md);
  padding: 0.65rem 1rem;
  box-shadow: var(--shadow-sm);
  max-width: calc(100% - 2.5rem);
}

.brand-card__logo-wrap img {
  height: 2.5rem;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  display: block;
}

.brand-card__body {
  padding: 1.5rem 1.6rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
}

.brand-card__category {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  font-weight: 600;
  color: var(--brand-card-accent, var(--c-navy-600));
  text-transform: uppercase;
}

.brand-card__title {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--c-navy-800);
  line-height: 1.3;
}

.brand-card__title small {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text-muted);
  margin-top: 0.2rem;
  letter-spacing: 0.02em;
}

.brand-card__text {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  line-height: 1.7;
  flex: 1;
}

.brand-card__cta {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-navy-700);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.25rem;
}

.brand-card:hover .brand-card__cta {
  color: var(--brand-card-accent, var(--c-emerald-600));
}

/* ============== Brand detail ============== */
.brand-detail-page {
  --brand-accent: var(--c-gold);
}

.brand-detail-page[data-brand="tokyo-supplement"] {
  --brand-accent: #c9a45c;
}
.brand-detail-page[data-brand="bificure"] {
  --brand-accent: #059669;
}
.brand-detail-page[data-brand="arukasagel"] {
  --brand-accent: #2f5e9e;
}
.brand-detail-page[data-brand="kamakura-japon"] {
  --brand-accent: #b45309;
}
.brand-detail-page[data-brand="aristino"] {
  --brand-accent: #374151;
}

/* Product cards — nền đậm hơn nền trang để dễ phân biệt */
.brand-detail {
  --product-card-bg: #eef2f7;
  --product-card-border: #d4dce6;
  --product-card-shadow: 0 2px 12px rgba(15, 35, 70, 0.08);
  margin-top: 0;
  padding-top: calc(var(--header-height) + 1rem);
}

.brand-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-navy-700);
  margin-bottom: 1.5rem;
  scroll-margin-top: calc(var(--header-height) + 0.75rem);
  transition: color 0.2s;
}

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

.brand-back svg {
  width: 1.1rem;
  height: 1.1rem;
}

.brand-hero {
  display: grid;
  grid-template-columns: 1fr;
  align-items: stretch;
  border-radius: var(--radius-xl);
  overflow: hidden;
  margin-bottom: 2.5rem;
  background: linear-gradient(155deg, var(--c-navy-50) 0%, var(--c-white) 42%, #f0f4fa 100%);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}

.brand-hero__bg {
  position: relative;
  order: 2;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  min-height: clamp(180px, 42vw, 320px);
  background: linear-gradient(180deg, transparent 0%, rgba(231, 238, 247, 0.5) 100%);
}

.brand-hero__bg img {
  width: 100%;
  height: 100%;
  max-height: clamp(200px, 38vw, 340px);
  object-fit: contain;
  object-position: center bottom;
  opacity: 1;
  padding: clamp(0.75rem, 3vw, 1.75rem) clamp(1rem, 4vw, 2rem) clamp(1rem, 3vw, 1.5rem);
}

.brand-hero__overlay {
  display: none;
}

.brand-hero__content {
  position: relative;
  z-index: 1;
  order: 1;
  padding: clamp(1.75rem, 4vw, 2.75rem) clamp(1.5rem, 4vw, 2.5rem)
    clamp(1rem, 3vw, 1.5rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.85rem;
}

@media (min-width: 768px) {
  .brand-hero {
    grid-template-columns: minmax(240px, 2fr) minmax(280px, 3fr);
    min-height: clamp(260px, 32vw, 380px);
  }

  .brand-hero__content {
    padding: clamp(2rem, 4vw, 3rem) clamp(1.75rem, 3vw, 2.5rem);
  }

  .brand-hero__bg {
    min-height: auto;
  }

  .brand-hero__bg img {
    max-height: none;
    height: 100%;
    padding: 1.5rem 2rem 2rem;
  }
}

/* Hero emblem vuông — không phóng full cột (Aristino) */
.brand-hero--emblem .brand-hero__bg {
  align-items: center;
  justify-content: center;
  min-height: clamp(160px, 32vw, 240px);
}

.brand-hero--emblem .brand-hero__bg img {
  width: auto;
  height: auto;
  max-width: min(200px, 58vw);
  max-height: min(180px, 42vw);
  object-fit: contain;
  object-position: center;
  padding: clamp(0.75rem, 2vw, 1.25rem);
}

@media (min-width: 768px) {
  .brand-hero--emblem {
    grid-template-columns: minmax(260px, 1.15fr) minmax(200px, 0.85fr);
    min-height: clamp(220px, 26vw, 300px);
  }

  .brand-hero--emblem .brand-hero__bg {
    min-height: auto;
  }

  .brand-hero--emblem .brand-hero__bg img {
    max-width: 200px;
    max-height: 180px;
    padding: 1rem 1.5rem;
  }
}

.brand-hero__logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
}

.brand-hero__logo img {
  height: clamp(2.25rem, 5vw, 3rem);
  width: auto;
  max-width: 260px;
  object-fit: contain;
}

.brand-hero__title {
  font-size: clamp(1.5rem, 3.5vw, var(--fs-2xl));
  font-weight: 700;
  color: var(--c-navy-800);
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.brand-hero__tagline {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--c-navy-800);
  line-height: 1.55;
  max-width: 26rem;
}

.brand-hero__category {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  font-weight: 600;
  color: var(--brand-accent, var(--c-navy-600));
  text-transform: uppercase;
}

.brand-hero-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .brand-hero-gallery {
    grid-template-columns: repeat(2, 1fr);
  }
}

.brand-hero-gallery__item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 7 / 4;
  background: var(--c-navy-50);
}

.brand-hero-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-about {
  max-width: 44rem;
  margin-bottom: 2.5rem;
}

.brand-about p {
  font-size: var(--fs-base);
  color: var(--c-text-muted);
  line-height: 1.85;
}

.brand-section__head {
  margin-bottom: 1.75rem;
}

.brand-section__head h2 {
  font-size: var(--fs-xl);
  color: var(--c-navy-800);
  margin-bottom: 0.35rem;
}

.brand-section__head p {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
}

.brand-products__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  align-items: stretch;
}

@media (min-width: 600px) {
  .brand-products__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .brand-products__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* 2製品のみ — PCで中央寄せ */
  .brand-products__grid--pair,
  .brand-products__grid:has(> .product-card:nth-child(2):last-child) {
    grid-template-columns: repeat(2, minmax(0, 400px));
    justify-content: center;
    gap: 1.5rem;
    max-width: 860px;
    margin-inline: auto;
  }

  /* 4製品など — PCは2列×2行（TOKYO Supplement など） */
  .brand-products__grid--cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
    max-width: 920px;
    margin-inline: auto;
  }
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--product-card-bg, var(--c-surface));
  border: 1px solid var(--product-card-border, var(--c-border));
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--product-card-shadow, var(--shadow-sm));
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
}

.product-card--static {
  cursor: default;
}

.product-card--static:hover {
  transform: none;
  box-shadow: var(--product-card-shadow, var(--shadow-sm));
}

/* ----- Product image slider ----- */
.product-slider {
  --slider-frame-h: clamp(240px, 52vw, 300px);
  position: relative;
  flex-shrink: 0;
  width: 100%;
  height: var(--slider-frame-h);
  background: linear-gradient(180deg, #fafbfd 0%, var(--c-white) 100%);
  border-bottom: 1px solid var(--product-card-border, var(--c-border));
  touch-action: pan-y;
}

@media (min-width: 600px) {
  .product-slider {
    --slider-frame-h: 280px;
  }
}

@media (min-width: 1024px) {
  .product-slider {
    --slider-frame-h: 300px;
  }
}

.product-slider__viewport {
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  width: 100%;
  height: var(--slider-frame-h);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.product-slider__viewport::-webkit-scrollbar {
  display: none;
}

.product-slider__track {
  display: flex;
  height: var(--slider-frame-h);
}

.product-slider__slide {
  flex: 0 0 100%;
  width: 100%;
  height: var(--slider-frame-h);
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  box-sizing: border-box;
}

.product-slider__slide img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
  user-select: none;
  -webkit-user-drag: none;
}

.product-slider__img--lazy {
  opacity: 0;
  transition: opacity 0.35s ease;
  background: var(--c-navy-50);
}

.product-slider__slide img:not(.product-slider__img--lazy) {
  opacity: 1;
}

.product-slider__btn {
  position: absolute;
  top: 50%;
  z-index: 3;
  transform: translateY(-50%);
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--c-navy-800);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s, transform 0.2s;
}

.product-slider__btn:hover:not(:disabled) {
  background: var(--c-white);
  transform: translateY(-50%) scale(1.05);
}

.product-slider__btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.product-slider__btn svg {
  width: 1.1rem;
  height: 1.1rem;
}

.product-slider__btn--prev {
  left: 0.65rem;
}

.product-slider__btn--next {
  right: 0.65rem;
}

.product-slider__btn--next svg {
  transform: rotate(180deg);
}

.product-slider__footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem 0.75rem;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.45), transparent);
  pointer-events: none;
}

.product-slider__dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  pointer-events: auto;
}

.product-slider__dot {
  width: 0.45rem;
  height: 0.45rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: transform 0.2s, background 0.2s;
}

.product-slider__dot.is-active {
  background: var(--c-white);
  transform: scale(1.25);
}

.product-slider__counter {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.95);
  margin-left: 0.35rem;
  pointer-events: none;
}

.product-slider.is-single .product-slider__btn,
.product-slider.is-single .product-slider__footer {
  display: none;
}

.product-slider--gallery {
  --slider-frame-h: clamp(220px, 45vw, 380px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .product-slider--gallery {
    --slider-frame-h: 360px;
  }
}

/* 化粧品など縦長画像 — スライダーを縦型ショーケースに */
.product-slider--gallery-vertical {
  --slider-frame-h: clamp(320px, 58vw, 440px);
  width: 100%;
  max-width: min(100%, 400px);
  margin-inline: auto;
  border: 1px solid var(--product-card-border, var(--c-border));
  background: linear-gradient(165deg, #f8fafc 0%, #eef2f7 55%, #e8edf4 100%);
  box-shadow: var(--shadow-sm);
}

.product-slider--gallery-vertical .product-slider__slide {
  padding: 1.25rem 2.75rem;
}

.product-slider--gallery-vertical .product-slider__slide img {
  width: auto;
  height: 100%;
  max-height: calc(var(--slider-frame-h) - 2.5rem);
  max-width: min(240px, 72%);
  margin-inline: auto;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 8px 20px rgba(15, 35, 70, 0.12));
}

@media (min-width: 768px) {
  .product-slider--gallery-vertical {
    --slider-frame-h: 480px;
    max-width: 420px;
  }

  .product-slider--gallery-vertical .product-slider__slide {
    padding: 1.5rem 3rem;
  }

  .product-slider--gallery-vertical .product-slider__slide img {
    max-width: min(260px, 68%);
    max-height: calc(var(--slider-frame-h) - 3rem);
  }

  .product-slider--gallery-vertical .product-slider__btn--prev {
    left: 0.5rem;
  }

  .product-slider--gallery-vertical .product-slider__btn--next {
    right: 0.5rem;
  }
}

.brand-cosmetics .product-slider--gallery-vertical {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .product-slider__btn {
    width: 2.5rem;
    height: 2.5rem;
  }

  .product-slider__btn--prev {
    left: 1rem;
  }

  .product-slider__btn--next {
    right: 1rem;
  }
}

.product-card--has-link .product-card__cta {
  display: inline-flex;
  align-items: center;
  margin-top: auto;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-emerald-600);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.product-card--has-link:hover .product-card__cta {
  color: var(--c-emerald-700);
}

.product-card--has-link:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 22px rgba(15, 35, 70, 0.12);
}

.product-card__body {
  padding: 1.25rem 1.35rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
}

.product-card__name {
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--c-navy-800);
  line-height: 1.35;
}

.product-card__name-ja {
  display: block;
  font-size: 0.88em;
  font-weight: 500;
  color: var(--c-text-muted);
  margin-top: 0.15rem;
}

.product-card__lead {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-navy-700);
  line-height: 1.55;
}

.product-card__features {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  padding-left: 1.15rem;
  margin: 0;
  line-height: 1.55;
}

.product-card__features li + li {
  margin-top: 0.35rem;
}

.product-card__features-heading {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c-navy-800);
  margin: 0.15rem 0 0.5rem;
  line-height: 1.45;
}

.product-card__features--detail {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.product-card__features--detail li {
  padding-left: 0;
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--c-text-muted);
}

.product-card__features--detail li + li {
  margin-top: 0.85rem;
}

.product-card__features--detail strong {
  display: block;
  font-size: 0.95em;
  font-weight: 600;
  color: var(--c-navy-700);
  margin-bottom: 0.3rem;
  line-height: 1.45;
}

.product-card__desc {
  font-size: var(--fs-sm);
  color: var(--c-text-muted);
  line-height: 1.75;
  margin: 0;
}

.product-card__link-hint {
  margin-top: auto;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-emerald-600);
  letter-spacing: 0.04em;
}

.badge--soon {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  z-index: 2;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 0.35rem 0.7rem;
  background: var(--c-gold);
  color: var(--c-navy-900);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

.brand-cosmetics {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--c-border);
}

.brand-cosmetics__scroll {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 0.75rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

@media (min-width: 768px) {
  .brand-cosmetics__scroll {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    overflow: visible;
    gap: 1.25rem;
  }
}

.brand-cosmetics__item {
  flex: 0 0 min(72vw, 220px);
  scroll-snap-align: start;
  position: relative;
  background: var(--c-white);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

@media (min-width: 768px) {
  .brand-cosmetics__item {
    flex: none;
  }
}

.brand-cosmetics__item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  padding: 0.75rem;
  background: var(--c-surface);
}

.brand-cosmetics__item span {
  display: block;
  padding: 0.6rem 0.75rem;
  font-size: 0.78rem;
  color: var(--c-text-muted);
  text-align: center;
}

.brand-cosmetics__badge {
  margin-bottom: 1rem;
}

.brand-soon-banner {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--c-navy-50);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-navy-700);
  margin-bottom: 1.5rem;
}

.brand-soon-banner .badge--soon {
  position: static;
}

@media (prefers-reduced-motion: reduce) {
  .brand-card:hover,
  .product-card--has-link:hover,
  .brand-card__visual img,
  .product-slider__viewport {
    transform: none;
    transition: none;
    scroll-behavior: auto;
  }

  .product-slider__btn:hover:not(:disabled) {
    transform: translateY(-50%);
  }
}