/* AccordionGallery — React Bits vanilla port
 * https://reactbits.dev/components/accordion-gallery
 */
.accordion-gallery {
  --ag-accent: #ffffff;
  --ag-overlay: #060010;
  --ag-text: #ffffff;
  --ag-gap: 10px;
  --ag-radius: 16px;
  --ag-media-size: 320px;
  --ag-duration: 0.6s;

  display: flex;
  flex-direction: row;
  gap: var(--ag-gap);
  width: 100%;
  max-width: 100%;
  perspective: 1400px;
  perspective-origin: 50% 50%;
  box-sizing: border-box;
}

.accordion-gallery--vertical {
  flex-direction: column;
}

.ag-panel {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border-radius: var(--ag-radius);
  cursor: pointer;
  display: block;
  text-decoration: none;
  outline: none;
  transform-style: preserve-3d;
  transform-origin: center center;
  background: #0a0713;
  box-shadow: 0 10px 30px -18px rgba(0, 0, 0, 0.8);
  -webkit-tap-highlight-color: transparent;
  /* 只用 flex-grow，避免 max-width 与 grow 互抢导致闪烁 */
  transition:
    flex-grow var(--ag-duration) cubic-bezier(0.22, 1, 0.36, 1),
    transform var(--ag-duration) cubic-bezier(0.22, 1, 0.36, 1);
}

.ag-panel:focus-visible {
  box-shadow:
    0 0 0 2px var(--ag-accent),
    0 10px 30px -18px rgba(0, 0, 0, 0.8);
}

.ag-panel__frame {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: inherit;
}

.ag-panel__media {
  --ag-gray: 0;
  --ag-dim: 0.1;
  /* 铺满面板：按容器最短边 cover，不再用超大 media 裁出局部 */
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  filter: none;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: none;
  overflow: hidden;
}

/* 仅在需要灰阶时才启用 filter */
.accordion-gallery[data-ag-gray="1"] .ag-panel__media {
  filter: grayscale(var(--ag-gray));
  transition: filter var(--ag-duration) cubic-bezier(0.22, 1, 0.36, 1);
}

.accordion-gallery--vertical .ag-panel__media {
  width: 100%;
  height: 100%;
}

.ag-panel__media img {
  width: 100%;
  height: 100%;
  /* 最短边铺满容器，长边居中裁切（标准 cover） */
  object-fit: cover;
  object-position: center center;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
  image-rendering: auto;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  /* 整体提亮，避免压暗后发闷 */
  filter: brightness(1.12) contrast(1.04) saturate(1.06);
}

.ag-panel--active .ag-panel__media img {
  filter: brightness(1.16) contrast(1.05) saturate(1.08);
}

.ag-panel__overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  /* 仅底部轻微渐变便于读字；全局压暗大幅减弱 */
  background:
    linear-gradient(
      180deg,
      transparent 55%,
      color-mix(in srgb, var(--ag-overlay) 42%, transparent) 100%
    ),
    color-mix(in srgb, var(--ag-overlay) calc(var(--ag-dim, 0.1) * 100%), transparent);
  transition: background var(--ag-duration) cubic-bezier(0.22, 1, 0.36, 1);
}

.ag-panel--active .ag-panel__overlay {
  background: linear-gradient(
    180deg,
    transparent 62%,
    color-mix(in srgb, var(--ag-overlay) 32%, transparent) 100%
  );
}

.ag-panel__label {
  position: absolute;
  left: 20px;
  bottom: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: none;
  z-index: 2;
}

.ag-panel__bar {
  flex: 0 0 auto;
  width: 3px;
  height: 26px;
  border-radius: 3px;
  background: var(--ag-accent);
  opacity: 0;
  transform: translateX(-14px);
  box-shadow: 0 0 12px color-mix(in srgb, var(--ag-accent) 60%, transparent);
  transition:
    opacity var(--ag-duration) cubic-bezier(0.22, 1, 0.36, 1),
    transform var(--ag-duration) cubic-bezier(0.22, 1, 0.36, 1);
}

.ag-panel__text {
  color: var(--ag-text);
  font-family: inherit;
  font-weight: 600;
  font-size: clamp(1rem, 1.4vw, 1.35rem);
  letter-spacing: 0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transform: translateX(-14px);
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.55);
  transition:
    opacity var(--ag-duration) cubic-bezier(0.22, 1, 0.36, 1),
    transform var(--ag-duration) cubic-bezier(0.22, 1, 0.36, 1);
}

.ag-panel--active .ag-panel__bar,
.ag-panel--active .ag-panel__text {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 520px) {
  .accordion-gallery {
    flex-direction: column;
    perspective: none;
    height: auto !important;
  }
  .ag-panel {
    min-height: 84px;
    transform: none !important;
  }
  .accordion-gallery .ag-panel__media {
    width: 100%;
    height: var(--ag-media-size);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ag-panel,
  .ag-panel__media,
  .ag-panel__bar,
  .ag-panel__text {
    will-change: auto;
    transition-duration: 0.01ms !important;
  }
}