/* Scroll-driven 3-column gallery (vanilla port of animated-gallery) */

.vr-scroll-gallery {
  --gallery-frame-ratio: 16 / 10;
  position: relative;
  border-top: 1px solid var(--border-quiet);
  background: color-mix(in srgb, var(--canvas) 90%, transparent);
  overflow: clip;
}

.vr-scroll-gallery__intro {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 3rem 1.25rem 1.5rem;
  max-width: 40rem;
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .vr-scroll-gallery__intro {
    padding-top: 4rem;
    padding-bottom: 2rem;
  }
}

.vr-scroll-gallery__intro .vr-scroll-gallery__title {
  margin-bottom: 1rem;
}

.vr-scroll-gallery__glow {
  pointer-events: none;
  position: absolute;
  z-index: 1;
  left: 0;
  right: 0;
  top: 0;
  height: 70vh;
  background: linear-gradient(
    90deg,
    rgba(60, 255, 208, 0.08),
    rgba(60, 255, 208, 0.22),
    rgba(26, 158, 133, 0.12)
  );
  filter: blur(72px);
  mix-blend-mode: soft-light;
  opacity: 0.85;
}

.vr-scroll-gallery__scroll {
  position: relative;
  z-index: 2;
  min-height: 300vh;
  perspective: 1000px;
  perspective-origin: center top;
}

@media (min-width: 768px) {
  .vr-scroll-gallery__scroll {
    min-height: 340vh;
  }
}

.vr-scroll-gallery__sticky {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: 100svh;
  min-height: 28rem;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 0.75rem 2.5rem;
  perspective: 1000px;
  transform-style: preserve-3d;
}

.vr-scroll-gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
  transform-origin: 50% 50%;
  transform-style: preserve-3d;
  will-change: transform;
}

@media (min-width: 640px) {
  .vr-scroll-gallery__grid {
    gap: 0.625rem;
  }
}

.vr-scroll-gallery__col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  will-change: transform;
}

.vr-scroll-gallery__col[data-col="1"] {
  margin-top: -35%;
}

/* Fixed horizontal frame — any source aspect ratio is center-cropped inside */
.vr-scroll-gallery__item {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-quiet);
  background: var(--surface-slate);
  opacity: 0;
  filter: blur(8px);
  transform: translateY(12px);
  transition:
    opacity 0.55s ease,
    filter 0.55s ease,
    transform 0.55s ease;
}

.vr-scroll-gallery__item.is-visible {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

.vr-scroll-gallery__frame {
  position: relative;
  width: 100%;
  aspect-ratio: var(--gallery-frame-ratio);
  overflow: hidden;
  background: var(--surface-frame);
  isolation: isolate;
}

.vr-scroll-gallery__frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: cover;
  object-position: center center;
  display: block;
}

/* Portrait sources: keep faces/action in upper-center when cropping sides */
.vr-scroll-gallery__frame[data-orient="portrait"] img {
  object-position: center 38%;
}

.vr-scroll-gallery__frame[data-orient="landscape"] img {
  object-position: center center;
}

.vr-scroll-gallery__frame[data-orient="square"] img {
  object-position: center center;
}

.vr-scroll-gallery__hint {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 4;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-secondary);
  opacity: 0.85;
  pointer-events: none;
}

.vr-scroll-gallery__hint.is-hidden {
  opacity: 0;
  transition: opacity 0.4s ease;
}

@media (prefers-reduced-motion: reduce) {
  .vr-scroll-gallery__scroll {
    min-height: auto;
    padding-bottom: 2rem;
  }

  .vr-scroll-gallery__sticky {
    position: relative;
    height: auto;
    min-height: 0;
    padding: 1rem 0.75rem 2rem;
  }

  .vr-scroll-gallery__grid,
  .vr-scroll-gallery__col {
    transform: none !important;
  }

  .vr-scroll-gallery__item {
    opacity: 1;
    filter: none;
    transform: none;
  }
}