.acc-gallery {
  display: flex;
  gap: 10px;
  width: 100%;
  height: 480px;
}

.acc-panel {
  position: relative;
  flex: 0 0 64px;
  min-width: 0;
  height: 100%;
  padding: 0;
  margin: 0;
  border: 1px solid var(--color-divider);
  border-radius: 18px;
  overflow: hidden;
  cursor: pointer;
  background: var(--color-surface);
  box-shadow: var(--shadow-md, 0 3px 10px rgba(0, 0, 0, 0.16));
  transition: flex-basis 0.5s cubic-bezier(0.22, 1, 0.36, 1), flex-grow 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.acc-panel.is-expanded {
  flex: 1 1 auto;
}

.acc-panel-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

.acc-panel-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 8, 13, 0.15) 0%, rgba(20, 8, 13, 0.7) 100%);
  opacity: 0.85;
  transition: opacity 0.4s ease;
}

.acc-panel.is-expanded .acc-panel-scrim {
  opacity: 0.55;
  background: linear-gradient(0deg, rgba(20, 8, 13, 0.75) 0%, rgba(20, 8, 13, 0) 55%);
}

.acc-panel-label {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 16px 14px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.acc-panel:not(.is-expanded) .acc-panel-label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  align-items: flex-start;
  white-space: nowrap;
}

.acc-panel-kicker {
  font: 600 10px var(--font-heading, inherit);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent-300);
  margin-bottom: 4px;
}

.acc-panel:not(.is-expanded) .acc-panel-kicker,
.acc-panel:not(.is-expanded) .acc-panel-subtitle {
  display: none;
}

.acc-panel-title {
  font: 700 16px/1.2 var(--font-heading, inherit);
}

.acc-panel.is-expanded .acc-panel-title {
  font-size: clamp(16px, 2.4vw, 22px);
}

.acc-panel-subtitle {
  font-size: 12px;
  line-height: 1.5;
  color: color-mix(in srgb, #fff 78%, transparent);
  margin-top: 6px;
  max-width: 46ch;
}

@media (max-width: 720px) {
  .acc-gallery {
    flex-direction: column;
    height: auto;
  }
  .acc-panel {
    flex: 0 0 52px;
    width: 100%;
  }
  .acc-panel.is-expanded {
    flex: 0 0 380px;
  }
  .acc-panel:not(.is-expanded) .acc-panel-label {
    writing-mode: initial;
    transform: none;
    flex-direction: row;
    align-items: center;
    padding: 0 16px;
  }
  .acc-panel:not(.is-expanded) .acc-panel-title {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .acc-panel {
    transition: none;
  }
}