/*
 * Thumbnail Component
 * Thumbnails, thumbnail cards, and responsive grid
 */

@layer components {

  /* ─── Thumbnail ─── */

  .thumbnail {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: var(--color-gray-light);
  }

  .thumbnail__img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
    display: block;
  }

  .thumbnail__placeholder {
    inline-size: 100%;
    block-size: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray);
  }

  .thumbnail__placeholder--dark {
    background-color: var(--color-gray);
    color: var(--color-white);
  }

  /* Duration badge — top-right overlay */
  .thumbnail__duration {
    position: absolute;
    inset-block-start: var(--block-space-half);
    inset-inline-end: var(--block-space-half);
    background-color: var(--color-white);
    color: var(--color-gray);
    font-size: var(--text-x-small);
    padding-block: var(--block-space-quarter);
    padding-inline: var(--block-space-half);
    border-radius: var(--radius);
    white-space: nowrap;
  }

  /* Completion overlay */
  .thumbnail__done-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: oklch(var(--lch-gray-darker) / 0.55);
  }

  /* ─── Thumbnail Card ─── */

  .thumbnail-card {
    display: flex;
    flex-direction: column;
    background-color: var(--color-gray-lightest);
    border-radius: var(--radius);
    overflow: hidden;
    transition: opacity 150ms ease;

    @media (any-hover: hover) {
      &:hover {
        opacity: 0.85;
      }
    }
  }

  .thumbnail-card__body {
    padding: var(--block-space-3quarter) var(--block-space);
  }

  .thumbnail-card__title {
    font-size: var(--text-small);
    color: var(--color-gray-darker);
    line-height: var(--leading-snug);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .thumbnail-card--completed .thumbnail-card__title {
    color: var(--color-gray);
  }

  /* ─── Thumbnail Card Grid ─── */

  .thumbnail-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--block-space);

    @media (min-width: 640px) {
      grid-template-columns: repeat(3, 1fr);
    }

    @media (min-width: 1024px) {
      grid-template-columns: repeat(4, 1fr);
    }
  }

  /* ─── Thumbnail Cover (full-bleed image with title overlay) ─── */

  .thumbnail-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-radius: var(--radius);
    display: block;
    background-color: var(--color-gray-lighter);

    @media (any-hover: hover) {
      &:hover .thumbnail-cover__img {
        transform: scale(1.03);
      }
    }
  }

  .thumbnail-cover__img {
    position: absolute;
    inset: 0;
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
    transition: transform 300ms ease;
  }

  .thumbnail-cover__title {
    position: absolute;
    inset-inline: 0;
    inset-block-end: 0;
    padding-block-end: var(--block-space-1half);
    padding-inline: var(--block-space-1half);
  }

  .thumbnail-cover__title-text {
    display: inline;
    background-color: oklch(var(--lch-gray-dark));
    color: oklch(var(--lch-white));
    font-size: var(--text-large);
    line-height: var(--leading-snug);
    padding-block: 0.15em;
    padding-inline: 0.3em;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
  }

  /* ─── Recording thumbnail (workshop list) ─── */

  .thumbnail--recording {
    inline-size: clamp(8rem, 20vw, 10rem);
  }

  /* ─── Landing variant ─── */

  .thumbnail-card--landing {
    inline-size: 20rem;
    flex-shrink: 0;
    align-self: flex-start;

    @media (max-width: 639px) {
      inline-size: calc(50% - var(--block-space-half) / 2);
    }
  }

}