/* Blog page — Spark Dev /blog
 * Extends styles.css. Reuses --bg, --text, --text-muted, .feed, .entry.
 */

/* Filter bar -------------------------------------------------- */
.blog-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 32px 0 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-on-dark);
}

.blog-filter-btn {
  font-family: var(--font);
  font-size: 13px;
  font-weight: var(--w-medium);
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border-on-dark);
  border-radius: var(--r);
  padding: 6px 14px;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.blog-filter-btn:hover { color: var(--text); border-color: var(--border-strong); }
.blog-filter-btn.is-active {
  color: var(--text);
  background: var(--bg-raised);
  border-color: var(--text);
}

/* Feed -------------------------------------------------------- */
.blog-feed {
  list-style: none;
  padding: 0;
  margin: 0;
}

.blog-post {
  display: block;
  padding: 28px 0;
  border-top: 1px solid var(--border-on-dark);
}
.blog-post:first-child { border-top: none; padding-top: 16px; }

.blog-post .meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.blog-post .meta-row .dot { color: var(--text-dim); }
.blog-post .ago { font-style: italic; color: var(--text-dim); }
.blog-post .author { color: var(--text-muted); }

/* Source chips -------------------------------------------------- */
.source-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--r);
  font-size: 12px;
  font-weight: var(--w-medium);
  border: 1px solid currentColor;
  text-transform: lowercase;
}
.source-chip.source-telegram  { color: #29b6f6; }
.source-chip.source-discord   { color: #7c8cf8; }
.source-chip.source-youtube   { color: #ff5252; }
.source-chip.source-tiktok    { color: #f5f5f5; }
.source-chip.source-instagram { color: #e1306c; }
.source-chip.source-manual    { color: var(--success); }

.blog-post .entry-title {
  font-size: 22px;
  font-weight: var(--w-bold);
  margin: 4px 0 12px;
  letter-spacing: -0.01em;
}

.blog-post .post-text {
  color: var(--text);
  line-height: 1.6;
  margin: 8px 0 16px;
  white-space: normal;
  word-break: break-word;
  overflow-wrap: anywhere;
}
.blog-post .post-text a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.blog-post .post-tags {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.post-tag {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-raised);
  padding: 2px 8px;
  border-radius: var(--r);
}

.orig-link {
  margin-top: 16px;
  font-size: 13px;
}
.orig-link a {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px dotted var(--text-muted);
}
.orig-link a:hover { color: var(--accent); border-color: var(--accent); }

/* Media grid -------------------------------------------------- */
.media-grid {
  display: grid;
  gap: 6px;
  margin: 12px 0 4px;
  border-radius: var(--r);
  overflow: hidden;
}
.media-grid.is-1 { grid-template-columns: 1fr; }
.media-grid.is-2 { grid-template-columns: 1fr 1fr; }
.media-grid.is-grid {
  grid-template-columns: repeat(2, 1fr);
}

.media-grid > * {
  display: block;
  width: 100%;
  background: var(--bg-raised);
  border: 1px solid var(--border-on-dark);
  overflow: hidden;
  border-radius: var(--r);
}

.post-img {
  padding: 0;
  border: 1px solid var(--border-on-dark);
  background: var(--bg-raised);
  cursor: zoom-in;
  display: block;
  width: 100%;
}
.post-img img {
  display: block;
  width: 100%;
  max-height: 520px;
  object-fit: cover;
}
.media-grid.is-1 .post-img img { max-height: 600px; object-fit: contain; }

.post-video {
  width: 100%;
  max-height: 520px;
  background: #000;
}

.yt-lite, .yt-iframe {
  position: relative;
  aspect-ratio: 16 / 9;
  width: 100%;
  background-size: cover;
  background-position: center;
  background-color: #000;
  border: 1px solid var(--border-on-dark);
  cursor: pointer;
  display: block;
}
.yt-lite-play {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 64px;
  height: 64px;
  background: rgba(0,0,0,0.6);
  border-radius: 50%;
  display: flex;
}
.yt-lite-play::after {
  content: '';
  position: absolute;
  inset: 0;
  margin: auto;
  width: 0;
  height: 0;
  border-left: 18px solid #fff;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  transform: translateX(3px);
}
.yt-lite:hover .yt-lite-play { background: rgba(255,82,82,0.9); }
.yt-iframe { border: 0; }

/* Loader / states --------------------------------------------- */
.blog-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  color: var(--text-muted);
  font-size: 14px;
}
.blog-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--border-on-dark);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.blog-empty, .blog-error, .blog-end {
  text-align: center;
  color: var(--text-muted);
  padding: 32px 16px;
  font-size: 14px;
}
.blog-link-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-family: var(--font);
  font-size: inherit;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}
.blog-end { padding-top: 32px; padding-bottom: 16px; }

#blog-sentinel { height: 1px; }

/* Lightbox ---------------------------------------------------- */
.lightbox[hidden] { display: none !important; }
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  cursor: zoom-out;
}
.lightbox img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  cursor: default;
}
.lightbox-close {
  position: fixed;
  top: 16px;
  right: 24px;
  background: none;
  border: none;
  color: #fff;
  font-size: 36px;
  line-height: 1;
  cursor: pointer;
  padding: 8px;
  font-family: var(--font);
}
.lightbox-close:hover { color: var(--accent); }

/* Mobile ------------------------------------------------------ */
@media (max-width: 640px) {
  .blog-post { padding: 20px 0; }
  .blog-post .entry-title { font-size: 19px; }
  .blog-post .post-text { font-size: 15px; }
  .media-grid.is-grid { grid-template-columns: 1fr; }
  .media-grid.is-2 { grid-template-columns: 1fr; }
  .post-img img, .post-video { max-height: 440px; }
}