/* Blog layer: intentionally small and built on top of the site's retro system. */

.blog-home {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.4rem;
  align-items: end;
}

.blog-home-main {
  min-width: 0;
}

.blog-eyebrow {
  margin-bottom: 0.45rem;
  color: var(--accent-dim);
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.blog-home-copy,
.blog-deck,
.blog-empty-copy,
.blog-post-summary {
  color: var(--text-secondary);
  font-family: var(--font-publication);
}

.blog-home-copy {
  max-width: 37rem;
  font-size: 0.9rem;
  line-height: 1.55;
}

.blog-home-latest {
  list-style: none;
  max-width: 40rem;
  margin-top: 0.9rem;
  border-top: 1px solid var(--border);
}

.blog-home-latest li {
  display: grid;
  grid-template-columns: 5.7rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.5rem 0;
  border-bottom: 1px dotted #8b8068;
  font-size: 0.78rem;
}

.blog-home-latest time {
  color: var(--text-muted);
  font-size: 0.68rem;
}

.blog-home-latest a {
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 700;
}

.blog-home-empty {
  margin-top: 0.8rem;
  color: var(--text-muted);
  font-size: 0.72rem;
}

.blog-enter,
.blog-back {
  display: inline-block;
  border: 1px solid var(--border);
  padding: 0.42rem 0.68rem;
  background: #f2e8c9;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  box-shadow:
    2px 2px 0 #4c4c4c,
    inset 1px 1px 0 #fff8dc,
    inset -1px -1px 0 #7c6b4d;
}

.blog-enter:hover,
.blog-back:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  text-decoration: none;
  transform: translate(1px, 1px);
  box-shadow:
    1px 1px 0 #4c4c4c,
    inset 1px 1px 0 #fff8dc,
    inset -1px -1px 0 #7c6b4d;
}

.blog-page .content {
  gap: 1.25rem;
}

.blog-hero {
  padding: 1.35rem 0.25rem 1.1rem;
}

.blog-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 7vw, 4.1rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
}

.blog-deck {
  max-width: 37rem;
  margin-top: 1rem;
  font-size: 0.98rem;
  line-height: 1.6;
}

.blog-rule {
  height: 7px;
  margin-top: 1.2rem;
  border-top: 2px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.blog-section-label {
  margin-bottom: 0.85rem;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.blog-archive {
  padding: 0.2rem 0.25rem 1.25rem;
}

.blog-empty {
  display: grid;
  grid-template-columns: 5.3rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.blog-empty-mark {
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  color: var(--text-muted);
}

.blog-empty-copy {
  max-width: 35rem;
  font-size: 0.86rem;
  line-height: 1.55;
}

.blog-post-list {
  list-style: none;
}

.blog-post-row {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
}

.blog-home-list .blog-post-row {
  grid-template-columns: minmax(0, 1fr);
}

.blog-post-row:last-child {
  border-bottom: 1px solid var(--border);
}

.blog-post-row.is-placeholder {
  opacity: 0.82;
}

.blog-post-date-stack {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  align-items: flex-start;
}

.blog-post-date {
  color: var(--text-muted);
  font-size: 0.7rem;
  line-height: 1.5;
}

.blog-post-kind,
.blog-companion-type {
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.blog-status {
  color: var(--accent-dim);
  font-family: var(--font-body);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-post-title {
  display: inline;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
}

.blog-post-summary {
  margin-top: 0.35rem;
  font-size: 0.82rem;
  line-height: 1.5;
}

.blog-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.1rem 0.25rem 0.4rem;
}

.blog-nav-note {
  color: var(--text-muted);
  font-size: 0.68rem;
}

.blog-sidebar-nav {
  display: flex;
  justify-content: center;
  gap: 0.85rem;
  font-size: 0.7rem;
}

.blog-sidebar-nav a {
  color: var(--text-primary);
  text-decoration: none;
}

.blog-sidebar-nav a:hover,
.blog-sidebar-nav a[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Article primitives for future posts. */
.blog-article {
  max-width: 44rem;
}

.blog-article-header {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.blog-article-title {
  margin-top: 0.4rem;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.3rem);
  line-height: 1.1;
}

.blog-article-meta,
.blog-article-tags {
  color: var(--text-muted);
  font-size: 0.7rem;
  line-height: 1.5;
}

.blog-article-tags {
  margin-top: 0.28rem;
  font-size: 0.62rem;
}

.blog-update-note {
  margin-top: 0.78rem;
  padding: 0.62rem 0.72rem;
  border-left: 2px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-publication);
  font-size: 0.78rem;
  line-height: 1.5;
}

.blog-toc {
  margin: 1.2rem 0 1.5rem;
  padding: 0.72rem 0.82rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.blog-toc summary,
.blog-citation-bibtex summary {
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.blog-toc-list {
  margin: 0.65rem 0 0 1.1rem;
  padding: 0;
}

.blog-toc-list li + li {
  margin-top: 0.28rem;
}

.blog-toc-list a {
  color: var(--text-secondary);
  font-family: var(--font-publication);
  font-size: 0.78rem;
  text-decoration: none;
}

.blog-toc-list a:hover {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-article-body {
  font-family: var(--font-publication);
  font-size: 0.96rem;
  line-height: 1.72;
}

.blog-article-body > * + * {
  margin-top: 1.05rem;
}

.blog-article-body h2,
.blog-article-body h3 {
  margin-top: 1.8rem;
}

.blog-article-body blockquote {
  border-left: 3px solid var(--border);
  padding-left: 1rem;
  color: var(--text-muted);
}

.blog-article-body code {
  font-family: var(--font-body);
  font-size: 0.86em;
}

/* Research Notes are compact research communications rather than essays. */
.research-note .blog-article-header {
  border-bottom-width: 2px;
}

.research-note .blog-article-body {
  font-size: 0.92rem;
  line-height: 1.64;
}

.research-note .blog-article-body h2 {
  margin-top: 2rem;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  line-height: 1.25;
}

.research-note .blog-article-body h3 {
  margin-top: 1.45rem;
  font-family: var(--font-heading);
  font-size: 0.92rem;
  line-height: 1.3;
}

.research-note-abstract {
  margin: 1.35rem 0 0;
  padding: 0.9rem 0 1rem;
  border-top: 2px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.research-note-abstract h2 {
  margin: 0 0 0.55rem !important;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 0.72rem !important;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.research-note-abstract p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.58;
}

.research-note-key-result {
  margin: 0.95rem 0 1.25rem;
  padding: 0.72rem 0.82rem;
  border-left: 3px solid var(--border);
  background: rgba(242, 232, 201, 0.24);
  font-size: 0.84rem;
  line-height: 1.55;
}

.research-note-key-result p {
  margin: 0;
}

.research-note .blog-article-body table {
  width: 100%;
  margin: 1rem 0 1.15rem;
  border-collapse: collapse;
  font-size: 0.78rem;
  line-height: 1.4;
}

.research-note .blog-article-body th,
.research-note .blog-article-body td {
  padding: 0.4rem 0.45rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  text-align: left;
}

.research-note .blog-article-body th {
  font-family: var(--font-heading);
  font-weight: 700;
}

.research-note .blog-article-body hr {
  margin: 1.7rem 0;
}

.blog-citation {
  margin: 2.2rem 0 1.15rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--border);
}

.blog-citation-text {
  color: var(--text-secondary);
  font-family: var(--font-publication);
  font-size: 0.78rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.blog-citation-bibtex {
  margin-top: 0.65rem;
}

.blog-citation-bibtex pre {
  margin-top: 0.55rem;
  padding: 0.7rem;
  overflow-x: auto;
  border: 1px solid var(--border);
  background: rgba(242, 232, 201, 0.25);
  font-size: 0.72rem;
  line-height: 1.45;
}

.blog-companions {
  margin: 2.2rem 0 1.15rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--border);
}

.blog-companion-list {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px dotted #8b8068;
}

.blog-companion-card {
  display: block;
  padding: 0.68rem 0;
  border-bottom: 1px dotted #8b8068;
  color: var(--text-primary);
  text-decoration: none;
  background: transparent;
}

.blog-companion-card.is-placeholder {
  opacity: 0.76;
}

.blog-companion-card:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.blog-companion-card:hover .blog-companion-title {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.blog-companion-status {
  display: inline-block;
  margin-right: 0.45rem;
  color: var(--accent-dim);
  font-family: var(--font-body);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.blog-companion-title {
  display: inline;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.3;
}

.blog-companion-type {
  display: inline-block;
  margin-left: 0.42rem;
}

.blog-companion-summary {
  display: block;
  margin-top: 0.28rem;
  color: var(--text-muted);
  font-family: var(--font-publication);
  font-size: 0.72rem;
  line-height: 1.45;
}

@media (max-width: 620px) {
  .blog-home {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .blog-enter {
    justify-self: start;
  }

  .blog-post-row,
  .blog-empty {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .blog-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .research-note .blog-article-body table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}