/*
 * blog-kit.css — base styles for blog-kit.js, tag-cloud.js, share.js and
 * reactions-widget.js. Sites override the look via the CSS custom
 * properties below; every selector is `bk-`-namespaced to avoid collisions.
 */

:root {
  --bk-accent: #2563eb;
  --bk-text: inherit;
  --bk-muted: #6b7280;
  --bk-tag-bg: #eff6ff;
  --bk-tag-text: var(--bk-accent);
  --bk-radius: 6px;
  --bk-gap: 1.5rem;
  --bk-rating-fill: var(--bk-accent);
  --bk-rating-track: #e5e7eb;
  --bk-media-radius: var(--bk-radius);
  --bk-yt-play-bg: #212121;
  --bk-yt-play-hover: #f00;
  --bk-share-size: 2.5rem;
  --bk-share-fg: var(--bk-accent);
  --bk-share-bg: transparent;
  --bk-share-border: currentColor;
  --bk-share-hover-fg: #fff;
  --bk-share-hover-bg: var(--bk-accent);
  --bk-share-focus: var(--bk-accent);
  --bk-toast-bg: #111827;
  --bk-toast-fg: #fff;
}

/* ---------- posts ---------- */

.bk-post {
  margin-bottom: var(--bk-gap);
  color: var(--bk-text);
}

.bk-post-header {
  margin-bottom: 0.5rem;
}

.bk-post-title {
  margin: 0 0 0.25rem;
  font-size: 1.4rem;
}

.bk-post-date {
  color: var(--bk-muted);
  font-size: 0.85rem;
}

.bk-post-body p {
  margin: 0 0 1rem;
  line-height: 1.6;
}

.bk-media {
  margin: 0 0 1rem;
}

.bk-media img,
.bk-media video {
  max-width: 100%;
  height: auto;
  border-radius: var(--bk-radius);
  display: block;
}

.bk-media figcaption {
  color: var(--bk-muted);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

/* ---------- YouTube click-to-play (render.js + youtube-embed.js) ---------- */

.bk-yt-preview {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  padding: 0;
  border: 0;
  border-radius: var(--bk-media-radius);
  overflow: hidden;
  background: radial-gradient(circle at center, #3a3a3a 0%, #111 75%);
  cursor: pointer;
}

.bk-media .bk-yt-preview img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  border-radius: 0;
}

.bk-yt-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  line-height: 0;
  transition: transform 0.15s ease;
}

.bk-yt-play-bg {
  fill: var(--bk-yt-play-bg);
  fill-opacity: 0.8;
  transition: fill 0.15s ease, fill-opacity 0.15s ease;
}

.bk-yt-preview:hover .bk-yt-play,
.bk-yt-preview:focus-visible .bk-yt-play {
  transform: translate(-50%, -50%) scale(1.06);
}

.bk-yt-preview:hover .bk-yt-play-bg,
.bk-yt-preview:focus-visible .bk-yt-play-bg {
  fill: var(--bk-yt-play-hover);
  fill-opacity: 1;
}

.bk-yt-preview:focus-visible {
  outline: 3px solid var(--bk-accent);
  outline-offset: 2px;
}

.bk-yt-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--bk-media-radius);
  overflow: hidden;
}

.bk-yt-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  .bk-yt-play,
  .bk-yt-play-bg {
    transition: none;
  }

  .bk-yt-preview:hover .bk-yt-play,
  .bk-yt-preview:focus-visible .bk-yt-play {
    transform: translate(-50%, -50%);
  }
}

/* ---------- tags ---------- */

.bk-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.bk-tag {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: var(--bk-tag-bg);
  color: var(--bk-tag-text);
  font-size: 0.8rem;
  text-decoration: none;
}

.bk-tag:hover,
.bk-tag:focus-visible {
  text-decoration: underline;
}

.bk-filter {
  color: var(--bk-muted);
}

/* ---------- pagination ---------- */

.bk-pagination {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: var(--bk-gap) 0;
}

.bk-page-link {
  color: var(--bk-accent);
  text-decoration: none;
}

.bk-page-link:hover,
.bk-page-link:focus-visible {
  text-decoration: underline;
}

.bk-page-status {
  color: var(--bk-muted);
  font-size: 0.9rem;
}

/* ---------- tag cloud ---------- */

.bk-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
}

.bk-cloud-tag {
  color: var(--bk-accent);
  text-decoration: none;
  line-height: 1.3;
}

.bk-cloud-tag:hover,
.bk-cloud-tag:focus-visible {
  text-decoration: underline;
}

/* ---------- reactions widget ---------- */

.bk-reactions {
  margin: 1rem 0;
}

.bk-reactions-rating {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.bk-rating-bar {
  flex: 0 0 10rem;
  height: 0.6rem;
  background: var(--bk-rating-track);
  border-radius: 999px;
  overflow: hidden;
}

.bk-rating-fill {
  height: 100%;
  background: var(--bk-rating-fill);
  border-radius: 999px;
  transition: width 0.4s ease;
}

.bk-rating-text {
  color: var(--bk-muted);
  font-size: 0.85rem;
  min-width: 3ch;
}

.bk-reactions-buttons {
  display: flex;
  gap: 0.5rem;
}

.bk-vote {
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--bk-accent);
  border-radius: var(--bk-radius);
  background: transparent;
  color: var(--bk-accent);
  font-size: 0.9rem;
  cursor: pointer;
}

.bk-vote:hover:not(:disabled),
.bk-vote:focus-visible:not(:disabled) {
  background: var(--bk-accent);
  color: #fff;
}

.bk-vote:disabled {
  opacity: 0.55;
  cursor: default;
}

.bk-vote.bk-voted {
  background: var(--bk-accent);
  color: #fff;
  opacity: 1;
}

.bk-reactions-note {
  color: var(--bk-muted);
  font-size: 0.85rem;
  min-height: 1.2em;
  margin: 0.4rem 0 0;
}

/* ---------- share bar (render.js renderShareBar + share.js) ---------- */

.bk-share {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 1rem 0 0;
}

.bk-share-label {
  color: var(--bk-muted);
  font-size: 0.85rem;
  margin-right: 0.25rem;
}

.bk-share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: var(--bk-share-size);
  min-height: var(--bk-share-size);
  padding: 0 0.9rem;
  border: 1px solid var(--bk-share-border);
  border-radius: 999px;
  background: var(--bk-share-bg);
  color: var(--bk-share-fg);
  font: inherit;
  font-size: 0.85rem;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

/* `display: inline-flex` would override the [hidden] attribute the JS-only
   controls carry until share.js enhances them. */
.bk-share-btn[hidden] {
  display: none;
}

.bk-share-btn:hover,
.bk-share-btn:focus-visible {
  background: var(--bk-share-hover-bg);
  color: var(--bk-share-hover-fg);
}

.bk-share-btn:focus-visible {
  outline: 3px solid var(--bk-share-focus);
  outline-offset: 2px;
}

.bk-share-icon {
  flex: 0 0 auto;
  width: 1.15rem;
  height: 1.15rem;
}

/* Compact variant (post lists): round icon-only buttons; the labels remain
   the accessible names (aria-label). */
.bk-share-compact {
  gap: 0.35rem;
  margin-top: 0.75rem;
}

.bk-share-compact .bk-share-btn {
  --bk-share-size: 2.25rem;
  width: var(--bk-share-size);
  padding: 0;
}

.bk-share-compact .bk-share-text {
  display: none;
}

/* One toast per page (share.js), role=status / aria-live=polite. */
.bk-share-toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  z-index: 1000;
  max-width: calc(100vw - 2rem);
  padding: 0.6rem 1rem;
  border-radius: var(--bk-radius);
  background: var(--bk-toast-bg);
  color: var(--bk-toast-fg);
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 0.5rem);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.bk-share-toast:empty {
  padding: 0;
}

.bk-share-toast-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (prefers-reduced-motion: reduce) {
  .bk-share-btn,
  .bk-share-toast {
    transition: none;
  }

  .bk-share-toast,
  .bk-share-toast-visible {
    transform: translate(-50%, 0);
  }
}