/* DS-010: token replacement for session document and video tiles. */
.session-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, calc(var(--tkc-space-8) * 4)), 1fr));
  align-items: stretch;
  gap: var(--tkc-space-4);
  width: 100%;
  margin: var(--tkc-space-2) auto var(--tkc-space-5);
}

.collapsible-body :is(.session-tiles, .session-downloads) {
  width: 100%;
  margin-inline: 0;
}

.session-tile {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--tkc-color-text);
  background-color: var(--tkc-color-surface);
  border: thin solid var(--tkc-color-border);
  border-radius: var(--tkc-radius-md);
  box-shadow: var(--tkc-shadow-sm);
}

.session-tile:is(:hover, :focus-within) {
  border-color: var(--tkc-color-accent);
  box-shadow: var(--tkc-shadow-md);
}

.session-tile-download,
.session-tile-links {
  align-items: center;
  justify-content: center;
  gap: var(--tkc-space-2);
  text-align: center;
}

.session-tile-download:not(.session-tile-has-thumb),
.session-tile-links {
  padding: var(--tkc-space-5);
}

.session-tile-download.session-tile-has-thumb {
  align-items: stretch;
  justify-content: flex-start;
}

.session-tile-thumb,
.session-tile-video {
  display: block;
  position: relative;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background-color: var(--tkc-color-surface);
}

.session-tile-thumb img,
.session-tile-video iframe {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  object-fit: cover;
}

.session-tile-body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--tkc-space-2);
  padding: var(--tkc-space-4);
}

.session-tile-title {
  color: var(--tkc-color-text);
  font-size: var(--tkc-size-200);
  font-weight: var(--tkc-weight-bold);
  line-height: var(--tkc-leading-tight);
}

.session-tile-speaker {
  color: var(--tkc-color-text-muted);
  font-size: var(--tkc-size-100);
  font-style: italic;
}

.session-tile-cta {
  display: inline-flex;
  justify-content: center;
  margin-top: var(--tkc-space-1);
  padding: var(--tkc-space-2) var(--tkc-space-4);
  color: var(--tkc-color-bg);
  background-color: var(--tkc-color-accent);
  border-radius: var(--tkc-radius-sm);
  font-size: var(--tkc-size-100);
  font-weight: var(--tkc-weight-medium);
  text-decoration: none;
  transition: background-color var(--tkc-motion-fast) ease;
}

.session-tile-cta:hover,
.session-tile-cta:focus-visible {
  background-color: var(--tkc-color-accent-strong);
}

.session-tile-cta:focus-visible,
.session-downloads a:focus-visible {
  outline: medium solid var(--tkc-color-focus);
  outline-offset: var(--tkc-space-1);
}

.session-downloads {
  width: 100%;
  margin: var(--tkc-space-2) auto var(--tkc-space-3);
  color: var(--tkc-color-text-muted);
  font-size: var(--tkc-size-100);
  text-align: left;
}

.session-downloads a {
  color: var(--tkc-color-accent);
  font-weight: var(--tkc-weight-bold);
  text-decoration: none;
}

@media (prefers-reduced-motion: reduce) {
  .session-tile-cta {
    transition-duration: 0s;
  }
}