/* Blog overview (listing) page: editorial front page.
 *
 * Theming contract: colours read `--blog-*` custom properties with a theme
 * fallback, so a project retints the page by declaring them once:
 *
 *   :root {
 *     --blog-accent: var(--brand);
 *     --blog-surface: var(--surface-container-low);
 *     --blog-card-border: var(--line);
 *     --blog-chip-bg: var(--surface-container-lowest);
 *   }
 *
 * Nothing here is written at body level, so admin pages are untouched. */

.blog-overview-header,
.blog-mosaic,
.blog-overview-results,
.blog-pagination,
.blog-overview-filter-empty,
.blog-overview-empty,
.blog-overview-search-loading {
  --bo-accent: var(--blog-accent, var(--primary-blue));
  --bo-fill: linear-gradient(
    135deg,
    var(--cta-gradient-start, var(--bo-accent)),
    var(--cta-gradient-end, var(--bo-accent))
  );
  --bo-soft: color-mix(in srgb, var(--bo-accent) 12%, var(--container-bg));
  --bo-text: color-mix(in srgb, var(--bo-accent) 80%, var(--heading-color));
  --bo-line: var(
    --blog-card-border,
    color-mix(in srgb, var(--bo-accent) 16%, var(--border-color))
  );
  --bo-surface: var(--blog-surface, var(--container-bg));
  --bo-glass: linear-gradient(
    135deg,
    color-mix(in srgb, var(--bo-accent) 9%, var(--bo-surface)),
    color-mix(in srgb, var(--bo-accent) 3%, var(--bo-surface))
  );
  max-width: var(--blog-max-width, 1180px);
  margin-inline: auto;
}

.blog-overview-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
  align-items: center;
  gap: 16px 32px;
  padding: 8px 0 22px;
}

.blog-overview-intro {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.blog-overview-title {
  margin: 0;
  font-size: clamp(28px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--heading-color);
  text-wrap: balance;
}

.blog-overview-subtitle {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  color: var(--muted-text);
  text-wrap: pretty;
}

.blog-overview-search-form {
  width: 100%;
  margin: 0;
}

.blog-overview-search {
  width: 100%;
  max-width: none;
}

.tag-filter-bar {
  grid-column: 1 / -1;
}

.tag-filter-chips {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 32px;
  padding: 0 13px;
  border: 1px solid var(--bo-line);
  border-radius: 999px;
  background: var(--blog-chip-bg, var(--container-bg));
  color: var(--text-color);
  font-size: 13px;
  font-weight: 650;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  transition:
    border-color 0.15s ease,
    background 0.15s ease,
    color 0.15s ease;
}

.filter-chip:hover {
  border-color: var(--bo-accent);
  color: var(--bo-text);
}

.filter-chip:focus-visible {
  outline: 2px solid var(--bo-accent);
  outline-offset: 2px;
}

.filter-chip.active {
  border-color: transparent;
  background: var(--bo-fill);
  color: var(--primary-ink, #fff);
}

.filter-chip .count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 18px;
  padding: 0 6px;
  border-radius: 999px;
  background: color-mix(in srgb, currentcolor 12%, transparent);
  color: inherit;
  font-size: 11px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

/* Front page: one lead story and two stacked stories beside it */
.blog-front {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
  gap: 20px;
}

.blog-front-side {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 20px;
}

.blog-mosaic-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 32px 0 14px;
  font-size: 16px;
  font-weight: 800;
  color: var(--heading-color);
}

.blog-mosaic-heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--bo-line);
}

.blog-overview-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px 20px;
}

/* Cards */
.blog-post-card {
  position: relative;
  display: grid;
  min-width: 0;
  margin: 0;
  color: inherit;
  cursor: pointer;
}

.blog-post-card:focus-visible {
  outline: 2px solid var(--bo-accent);
  outline-offset: 4px;
  border-radius: 20px;
}

.blog-post-card-thumb-wrap {
  display: block;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: 16px;
  background: var(--bo-soft);
}

.blog-post-card-thumb {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.blog-post-card--grid .blog-post-card-thumb-wrap {
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.blog-post-card--grid:hover .blog-post-card-thumb-wrap {
  transform: translateY(-3px);
  box-shadow: 0 12px 26px color-mix(in srgb, var(--bo-accent) 18%, transparent);
}

.blog-post-card-thumb-placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: var(--bo-text);
  font-size: 28px;
}

.blog-post-card-content {
  display: grid;
  align-content: start;
  gap: 6px;
  min-width: 0;
}

.blog-post-card-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.blog-post-card-top:empty {
  display: none;
}

.blog-card-kicker,
.blog-card-tag {
  text-decoration: none;
}

.blog-post-link {
  display: grid;
  gap: 8px;
  color: inherit;
  text-decoration: none;
}

.blog-post-card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--heading-color);
  text-wrap: pretty;
  transition: color 0.15s ease;
}

.blog-post-card:hover .blog-post-card-title {
  color: var(--bo-text);
}

.blog-post-card-excerpt {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted-text);
}

.blog-post-card-meta {
  font-size: 13px;
  color: var(--muted-text);
}

/* Grid card: thumbnail on top, text below, no box */
.blog-post-card--grid {
  gap: 12px;
  align-content: start;
}

.blog-post-card--grid .blog-card-kicker {
  display: none;
}

/* Lead story */
.blog-post-card--lead {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 26px;
  padding: 12px;
  border: 1px solid var(--bo-line);
  border-radius: 24px;
  background: var(--bo-glass);
}

.blog-post-card--lead .blog-post-card-content {
  gap: 10px;
  padding-right: 16px;
}

.blog-post-card--lead .blog-post-card-title {
  font-size: clamp(22px, 2.2vw, 30px);
  line-height: 1.2;
}

/* Stacked side stories */
.blog-post-card--side {
  grid-template-columns: 112px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding: 10px;
  border: 1px solid var(--bo-line);
  border-radius: 20px;
  background: var(--bo-surface);
}

.blog-post-card--side .blog-post-card-thumb-wrap {
  border-radius: 12px;
}

.blog-post-card--lead,
.blog-post-card--side {
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.blog-post-card--lead:hover,
.blog-post-card--side:hover {
  border-color: color-mix(in srgb, var(--bo-accent) 36%, transparent);
  box-shadow: 0 14px 32px color-mix(in srgb, var(--bo-accent) 14%, transparent);
}

.blog-overview-empty,
.blog-overview-filter-empty {
  padding: 28px;
  border: 1px solid var(--bo-line);
  border-radius: 20px;
  background: var(--bo-surface);
  text-align: center;
}

.blog-overview-empty h2,
.blog-overview-filter-empty h2 {
  margin: 0 0 6px;
  font-size: 20px;
  color: var(--heading-color);
}

.blog-overview-empty-hint {
  margin: 0;
  color: var(--muted-text);
}

.blog-overview-search-loading {
  color: var(--muted-text);
  text-align: center;
}

.blog-pagination {
  margin-top: 32px;
}

@media (max-width: 1024px) {
  .blog-overview-grid {
    gap: 22px 14px;
  }

  .blog-post-card--grid .blog-post-card-title {
    font-size: 15px;
  }

  .blog-front {
    grid-template-columns: minmax(0, 1fr);
  }

  .blog-front-side {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: none;
  }
}

@media (max-width: 760px) {
  .blog-overview-header {
    grid-template-columns: minmax(0, 1fr);
  }

  .blog-post-card--lead {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .blog-post-card--lead .blog-post-card-content {
    padding: 0 6px 6px;
  }

  .blog-front-side {
    grid-template-columns: minmax(0, 1fr);
  }

  .blog-post-card--side {
    grid-template-columns: 88px minmax(0, 1fr);
  }

  .blog-overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 14px;
  }

  .blog-post-card-title {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-post-card-thumb-wrap,
  .filter-chip {
    transition: none;
  }

  .blog-post-card--grid:hover .blog-post-card-thumb-wrap {
    transform: none;
  }
}