.filmstrip {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-block: var(--space-4);
  padding-inline: var(--space-gutter);
  margin-block-start: var(--space-6);
  background: var(--paper-deep);
  scrollbar-width: thin;
  scrollbar-color: var(--sage) transparent;
}

.filmstrip:not(:has(.filmstrip__item)) {
  display: none;
}

.filmstrip__item {
  all: unset;
  box-sizing: border-box;
  cursor: pointer;
  position: relative;
  flex: 0 0 clamp(56px, 12vw, 88px);
  aspect-ratio: 1 / 1;
  scroll-snap-align: start;
  border-radius: var(--radius-xs);
  overflow: hidden;
  background: var(--paper);
}

.filmstrip__item::before,
.filmstrip__item::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 5px;
  z-index: 1;
  background-image: repeating-linear-gradient(to right, var(--paper-deep) 0 3px, transparent 3px 8px);
}

.filmstrip__item::before {
  top: 0;
}

.filmstrip__item::after {
  bottom: 0;
}

.filmstrip__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background-size: cover;
  background-position: center;
  opacity: 0.72;
  transition: opacity var(--dur-fast) var(--ease-standard);
}

.filmstrip__item.is-active .filmstrip__img {
  opacity: 1;
}

.filmstrip__item.is-active {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
  box-shadow: var(--shadow-lift);
}

.filmstrip__item:focus-visible {
  outline: 2px solid var(--amber-ink);
  outline-offset: 3px;
}

@media (hover: hover) {
  .filmstrip__item:hover .filmstrip__img {
    opacity: 1;
  }
}

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

@media (min-width: 1024px) {
  .filmstrip {
    margin-block-start: var(--space-8);
    border-radius: var(--radius-xs);
  }
}