/* “Bên trong chiếc bánh” — real cutaway gallery (TASK-1080) */

.sf-inside {
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
  background:
    radial-gradient(120% 80% at 10% 0%, color-mix(in srgb, var(--palette-gold, #c4a574) 10%, transparent), transparent 55%),
    var(--color-bg, #f7f1e8);
}

.sf-inside__layout {
  display: grid;
  gap: 1.25rem 1.75rem;
  align-items: center;
}

.sf-inside__visual {
  min-width: 0;
}

.sf-inside__frame {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  background: #1a120e;
  aspect-ratio: 4 / 5;
  max-width: 36rem;
  margin-inline: auto;
}

.sf-inside__badge {
  position: absolute;
  z-index: 2;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: color-mix(in srgb, #1a120e 72%, transparent);
  color: #f7f1e8;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.sf-inside__featured-btn {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}

.sf-inside__featured {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 240ms ease, transform 240ms ease;
}

.sf-inside__featured.is-fading {
  opacity: 0.35;
  transform: translateX(8px);
}

.sf-inside__nav-float {
  position: absolute;
  inset: auto 0.55rem 0.55rem auto;
  display: flex;
  gap: 0.35rem;
  z-index: 2;
}

.sf-inside__nav-btn {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 0;
  background: color-mix(in srgb, #fff 88%, transparent);
  color: var(--palette-cocoa, #3b2418);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
}

.sf-inside__nav-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.sf-inside__copy {
  min-width: 0;
}

.sf-inside__title {
  margin: 0.35rem 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.2vw, 2rem);
  font-weight: 600;
  color: var(--palette-cocoa, #3b2418);
  line-height: 1.2;
}

.sf-inside__lead {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
  font-size: var(--text-body-sm-size, 0.95rem);
  max-width: 34rem;
}

.sf-inside__thumbs {
  display: flex;
  gap: 0.55rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.sf-inside__thumb {
  flex: 0 0 auto;
  width: 4.6rem;
  height: 5.75rem;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 0.55rem;
  overflow: hidden;
  background: #ddd;
  cursor: pointer;
  scroll-snap-align: start;
}

.sf-inside__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sf-inside__thumb.is-active {
  border-color: var(--palette-gold, #c4a574);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--palette-gold, #c4a574) 50%, transparent);
}

.sf-inside__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1rem;
  margin-top: 1rem;
}

.sf-inside__link {
  border: 0;
  background: transparent;
  color: var(--palette-cocoa, #3b2418);
  font: inherit;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.18em;
  cursor: pointer;
  padding: 0.35rem 0;
}

.sf-inside__counter {
  margin: 0;
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* Lightbox */
.sf-inside-fs {
  position: fixed;
  inset: 0;
  /* Above sticky header (storefront ~120) so close/nav stay reachable */
  z-index: 140;
  display: flex;
  flex-direction: column;
  background: color-mix(in srgb, #0d0907 96%, transparent);
  color: #fff;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom)
    env(safe-area-inset-left);
}

.sf-inside-fs[hidden] {
  display: none !important;
}

body.sf-inside-fs-open {
  overflow: hidden;
}

.sf-inside-fs__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
}

.sf-inside-fs__counter {
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.sf-inside-fs__close {
  width: 2.5rem;
  height: 2.5rem;
  border: 0;
  border-radius: 999px;
  background: color-mix(in srgb, #fff 16%, transparent);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

.sf-inside-fs__stage {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem;
  align-items: center;
  justify-items: center;
  gap: 0.35rem;
  padding: 0 0.5rem 1rem;
}

.sf-inside-fs__img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: min(82dvh, 100%);
  margin: 0 auto;
  object-fit: contain;
  touch-action: pinch-zoom;
}

.sf-inside-fs__nav {
  width: 2.75rem;
  height: 2.75rem;
  border: 0;
  border-radius: 999px;
  background: color-mix(in srgb, #fff 14%, transparent);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  flex-shrink: 0;
}

@media (min-width: 900px) {
  .sf-inside__layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 1.5rem 2rem;
  }

  .sf-inside__frame {
    margin-inline: 0;
    max-width: none;
  }

  .sf-inside__thumbs {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    overflow: visible;
    gap: 0.5rem;
    max-width: 26rem;
  }

  .sf-inside__thumb {
    width: auto;
    height: auto;
    aspect-ratio: 4 / 5;
  }

  .sf-inside__nav-float {
    display: none;
  }
}

@media (min-width: 1200px) {
  .sf-inside__layout {
    gap: 2rem 2.5rem;
  }

  .sf-inside__thumbs {
    max-width: 28rem;
    gap: 0.55rem;
  }
}