/* Reusable cards, widgets, search, previews, and alerts. */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}


.post-card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
  color: inherit;
  overflow: hidden;
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px var(--card-shadow);
  border-color: var(--accent-color);
  text-decoration: none;
}

.card-content {
  padding: 20px;
}

.card-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-code);
}

.draft-badge {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 8px;
  border: 1px solid var(--accent-color);
  border-radius: 999px;
  color: var(--accent-color);
  font-family: var(--font-code);
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.2;
}

.article-title + .draft-badge {
  margin-top: -8px;
}

.card-title {
  font-size: 1.1rem;
  font-weight: bold;
  margin: 0 0 10px 0;
  line-height: 1.4;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.sidebar-widget {
  margin-bottom: 30px;
  padding: 20px;
  background-color: var(--sidebar-bg);
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.widget-title {
  font-size: 1rem;
  margin: 0 0 15px 0;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 5px;
}

.sidebar-widget nav[role="doc-toc"] ul,
.sidebar-widget nav[role="doc-toc"] ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-widget nav[role="doc-toc"] li {
  margin-bottom: 8px;
  line-height: 1.4;
}

.sidebar-widget nav[role="doc-toc"] a {
  display: block;
  color: var(--text-color);
  font-size: 0.9rem;
}

.sidebar-widget nav[role="doc-toc"] a:hover {
  color: var(--accent-color);
  text-decoration: none;
}

.sidebar-widget nav[role="doc-toc"] ol ol {
  margin-top: 7px;
  margin-left: 0.2rem;
  padding-left: 0.9rem;
  border-left: 1px solid var(--border-color);
}

.sidebar-widget nav[role="doc-toc"] ol ol li {
  margin-bottom: 5px;
}

.sidebar-widget nav[role="doc-toc"] ol ol a {
  color: var(--text-muted);
  font-size: 0.84rem;
}

.mobile-search {
  display: none;
}

.search-input {
  width: 100%;
  min-height: 42px;
  padding: 9px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--card-bg);
  color: var(--text-color);
  font: inherit;
  line-height: 1.4;
}

.search-input:focus {
  border-color: var(--accent-color);
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-status {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.search-status[hidden] {
  display: none;
}

.search-results {
  display: grid;
  gap: 10px;
  margin: 14px 0 0 0;
  padding: 0;
  list-style: none;
}

.search-result-link {
  display: block;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--card-bg);
  color: inherit;
}

.search-result-link:hover {
  border-color: var(--accent-color);
  text-decoration: none;
}

.search-result-title {
  display: block;
  color: var(--text-color);
  font-weight: bold;
  font-size: 0.92rem;
  line-height: 1.4;
}

.search-result-excerpt {
  display: block;
  margin-top: 5px;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.search-result-excerpt mark {
  padding: 0 0.18em;
  border-radius: 3px;
  background-color: var(--mark-bg);
  color: var(--text-color);
}

.reference-preview {
  display: none;
}

.reference-preview.is-open {
  display: block;
}

.reference-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 15px;
  padding-bottom: 5px;
  border-bottom: 2px solid var(--border-color);
}

.reference-preview-title {
  margin: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.reference-preview-close {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  padding: 0;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background-color: transparent;
  color: var(--text-muted);
  cursor: pointer;
}

.reference-preview-body {
  max-height: 45vh;
  overflow-y: auto;
  padding-right: 4px;
  color: var(--text-color);
  font-size: 0.88rem;
  line-height: 1.55;
}

.reference-preview-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.reference-preview-entry {
  margin: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.footnote-preview-entry {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.content-preview-source-is-active {
  border-radius: 4px;
  background-color: var(--biblioref-active-bg);
  color: var(--biblioref-active-text);
  text-decoration: none;
}

.markdown-alert {
  padding: 16px;
  margin-bottom: 24px;
  border-left: 4px solid var(--border-color);
  background-color: var(--card-bg);
  border-radius: 6px;
  border-right: 1px solid var(--border-color);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.markdown-alert-title {
  display: flex;
  align-items: center;
  font-weight: bold;
  font-size: 0.95rem;
  margin: 0 0 8px 0;
  line-height: 1;
}

.markdown-alert-icon {
  margin-right: 8px;
  font-family: var(--font-code);
  font-size: 0.9em;
}

.markdown-alert-content > *:first-child {
  margin-top: 0;
}

.markdown-alert-content > *:last-child {
  margin-bottom: 0;
}

.markdown-alert-note {
  border-left-color: var(--color-note-border);
  background-color: var(--color-note-bg);
}

.markdown-alert-note .markdown-alert-title {
  color: var(--color-note-text);
}

.markdown-alert-tip {
  border-left-color: var(--color-tip-border);
  background-color: var(--color-tip-bg);
}

.markdown-alert-tip .markdown-alert-title {
  color: var(--color-tip-text);
}

.markdown-alert-important {
  border-left-color: var(--color-important-border);
  background-color: var(--color-important-bg);
}

.markdown-alert-important .markdown-alert-title {
  color: var(--color-important-text);
}

.markdown-alert-warning {
  border-left-color: var(--color-warning-border);
  background-color: var(--color-warning-bg);
}

.markdown-alert-warning .markdown-alert-title {
  color: var(--color-warning-text);
}

.markdown-alert-caution {
  border-left-color: var(--color-caution-border);
  background-color: var(--color-caution-bg);
}

.markdown-alert-caution .markdown-alert-title {
  color: var(--color-caution-text);
}

.back-home-btn {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: bold;
  color: var(--text-muted);
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: 99px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.back-home-nav {
  margin-bottom: 1rem;
}

.back-home-nav .back-home-btn {
  margin-bottom: 0;
}

.back-home-btn:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background-color: var(--card-bg);
  text-decoration: none;
  transform: translateX(-4px);
}

.author-links {
  display: flex;
  gap: 12px;
  margin-top: 15px;
  flex-wrap: wrap;
}

.author-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: transparent;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.author-icon-link svg {
  width: 18px;
  height: 18px;
  fill: var(--text-muted);
  transition: fill 0.2s ease;
}

.author-icon-link:hover {
  background-color: var(--card-bg);
  border-color: var(--border-color);
  transform: translateY(-2px);
}

.author-icon-link:hover .icon-x,
.author-icon-link:hover .icon-github {
  fill: var(--text-color);
}

.author-icon-link:hover .icon-misskey {
  fill: var(--author-misskey-hover);
}


@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .mobile-search {
    display: block;
    margin-bottom: 2rem;
  }

  .desktop-search {
    display: none;
  }

  .sidebar-widget.toc-widget {
    display: none;
  }

  .reference-preview {
    position: fixed;
    right: 15px;
    bottom: 15px;
    left: 15px;
    z-index: 9998;
    max-height: 55vh;
    margin: 0;
  }

  .reference-preview-body {
    max-height: 38vh;
  }
}