/* Blog pages get a wider canvas than the rest of the site (which tops out at
   860px via .narrow) -- a two-column list+sidebar needs more room to avoid
   turning into a narrow island with dead space on both sides. */
body[data-page="blog"] {
  --max: 1320px;
}

.post-meta {
  color: var(--muted);
  font-size: 0.875rem;
  margin: 0.35rem 0 0;
}

.category-badge {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.category-badge:hover {
  text-decoration: underline;
}

/* Title + meta sharing a row: title grows, meta hugs the right edge, wraps
   under the title on narrow screens instead of squeezing everything into a
   single stacked left-aligned column. */
.post-row-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.post-row-head h2 {
  margin-bottom: 0;
}

.post-row-meta,
.list-count {
  flex-shrink: 0;
  color: var(--muted);
  font-size: 0.84rem;
  white-space: nowrap;
}

.page-head .kicker {
  margin-bottom: 0.6rem;
}

/* Thin utility row between the page intro and the list -- gives the page a
   "this is a browsable collection" feel instead of the heading dropping
   straight into a wall of entries. */
.list-bar {
  display: flex;
  justify-content: flex-end;
  padding-bottom: 0.6rem;
  margin-bottom: 0.4rem;
  border-bottom: 1px solid var(--line);
}

.blog-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.blog-layout.has-toc {
  grid-template-columns: 220px minmax(0, 1fr) 220px;
}

.blog-sidebar {
  position: sticky;
  top: 5.5rem;
  padding-right: 1.5rem;
  border-right: 1px solid var(--line);
}

.blog-sidebar h2 {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 0 0 1rem;
}

.blog-sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.blog-sidebar a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.6rem 0.7rem;
  border-radius: 6px;
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  line-height: 1.35;
}

.blog-sidebar a:hover {
  background: var(--soft);
}

.blog-sidebar a.active {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 650;
}

.sidebar-count {
  color: var(--muted);
  font-size: 0.78rem;
  flex-shrink: 0;
}

.blog-sidebar a.active .sidebar-count {
  color: var(--accent-ink);
  opacity: 0.85;
}

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

.blog-main .page-head {
  margin-bottom: 1.6rem;
}

.blog-main .page-head p {
  max-width: none;
}

/* "On this page" -- auto-built from the post's own h2/h3s at build time,
   mirrors reading position via IntersectionObserver (toc.js). */
.blog-toc {
  position: sticky;
  top: 5.5rem;
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
  align-self: start;
}

.blog-toc h2 {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 0 0 1rem;
}

.blog-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.blog-toc a {
  display: block;
  padding: 0.4rem 0 0.4rem 0.85rem;
  border-left: 2px solid var(--line);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  line-height: 1.35;
}

.blog-toc .toc-level-3 a {
  padding-left: 1.6rem;
  font-size: 0.78rem;
}

.blog-toc a:hover {
  color: var(--ink);
  border-left-color: var(--muted);
}

.blog-toc a.active {
  border-left-color: var(--accent);
  color: var(--ink);
  font-weight: 650;
}

/* Metadata as labeled stat cells rather than an inline "date - read" string
   -- more scannable, reads less like an afterthought under the title. */
.post-stats {
  display: flex;
  gap: 2.25rem;
  margin: 1.25rem 0;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.post-stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.post-stat-label {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.post-stat-value {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 600;
}

@media (max-width: 1080px) {
  .blog-layout.has-toc {
    grid-template-columns: 240px minmax(0, 1fr);
  }

  .blog-toc {
    display: none;
  }
}

@media (max-width: 760px) {
  .blog-layout,
  .blog-layout.has-toc {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .blog-sidebar {
    position: static;
    padding-right: 0;
    padding-bottom: 1rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .blog-sidebar ul {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .post-stats {
    gap: 1.5rem;
  }
}

.post-body {
  max-width: 720px;
  margin-inline: auto;
  line-height: 1.7;
}

/* The site's base h1 (clamp 2.7-5.8rem) is sized for page-level titles like
   "Work" or "Blog" -- a per-post title at that scale ate most of the
   viewport. Post titles get their own, smaller scale. */
.post-body h1 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.9rem, 4.2vw, 2.75rem);
  line-height: 1.15;
}

.post-body h2,
.post-body h3 {
  margin-top: 2rem;
  /* Anchor-jumping to a heading (TOC click, in-page link, browser back/forward
     with a #hash) would otherwise land it flush behind the sticky header. */
  scroll-margin-top: 6rem;
}

.post-body p,
.post-body ul,
.post-body ol {
  margin: 1rem 0;
}

.post-body a {
  color: var(--accent);
}

.post-body hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 2.5rem 0;
}

.post-body .table-wrap {
  margin: 1.5rem 0;
  overflow-x: auto;
}

.post-body table {
  width: 100%;
  min-width: 480px;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  font-size: 0.88rem;
}

.post-body th,
.post-body td {
  padding: 0.65rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.post-body thead th {
  background: var(--soft);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.post-body tbody tr:last-child td {
  border-bottom: 0;
}

.post-body tbody tr:hover {
  background: var(--soft);
}

.post-body td code,
.post-body th code {
  font-size: 0.82em;
  white-space: nowrap;
}

.post-body blockquote {
  margin: 1.5rem 0;
  padding: 0.5rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--soft);
  color: var(--muted);
}

.post-body img {
  max-width: 100%;
  border-radius: 8px;
}

.post-body pre.hljs {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-radius: 8px;
  background: var(--ink);
  color: var(--accent-ink);
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.6;
}

.post-body code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.875em;
}

.post-body :not(pre) > code {
  background: var(--soft);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

/* mermaid.js replaces this element's contents with an <svg> at runtime;
   until then it briefly shows the raw diagram source, hence text-indent
   -9999px isn't used -- keep it plain so a JS failure degrades to readable
   text instead of an invisible block. */
.post-body pre.mermaid {
  margin: 1.5rem 0;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  overflow-x: auto;
  text-align: center;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
}

.post-body pre.mermaid svg {
  max-width: 100%;
  height: auto;
}

/* markdown-it-texmath wraps $$block$$ math in <eqn>/<section>, inline $math$
   in <eq> -- neither is a standard element, so give the block form explicit
   layout and let wide equations scroll instead of overflowing the column. */
.post-body eqn {
  display: block;
  margin: 1.5rem 0;
}

.post-body .katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.25rem 0;
}

/* fenced ```math / ```latex blocks (rendered directly via katex.renderToString) */
.post-body > .katex-display {
  margin: 1.5rem 0;
}

/* Every horizontally-scrollable element (tables, code, mermaid, math) gets a
   thin themed scrollbar instead of the thick default OS one -- a fat native
   scrollbar reads as broken UI even when the overflow is real and correct. */
.post-body .table-wrap,
.post-body .katex-display,
.post-body pre.hljs,
.post-body pre.mermaid {
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.post-body .table-wrap::-webkit-scrollbar,
.post-body .katex-display::-webkit-scrollbar,
.post-body pre.hljs::-webkit-scrollbar,
.post-body pre.mermaid::-webkit-scrollbar {
  height: 6px;
}

.post-body .table-wrap::-webkit-scrollbar-track,
.post-body .katex-display::-webkit-scrollbar-track,
.post-body pre.hljs::-webkit-scrollbar-track,
.post-body pre.mermaid::-webkit-scrollbar-track {
  background: transparent;
}

.post-body .table-wrap::-webkit-scrollbar-thumb,
.post-body .katex-display::-webkit-scrollbar-thumb,
.post-body pre.hljs::-webkit-scrollbar-thumb,
.post-body pre.mermaid::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 3px;
}

/* highlight.js tokens, tuned to the site's dark-ink code background */
.hljs-comment,
.hljs-quote {
  color: #8b93a1;
  font-style: italic;
}

.hljs-keyword,
.hljs-selector-tag,
.hljs-literal {
  color: #7dd3a8;
}

.hljs-string,
.hljs-attr,
.hljs-attribute {
  color: #f2c078;
}

.hljs-number,
.hljs-built_in,
.hljs-type {
  color: #79c0ff;
}

.hljs-title,
.hljs-function,
.hljs-title.function_ {
  color: #eef8f4;
  font-weight: 600;
}

.hljs-tag,
.hljs-name {
  color: #f2789f;
}

.hljs-variable,
.hljs-template-variable,
.hljs-params {
  color: #c9d1d9;
}

.hljs-meta,
.hljs-meta-keyword,
.hljs-doctag {
  color: #c297f0;
}

.hljs-symbol,
.hljs-bullet,
.hljs-selector-id,
.hljs-selector-class,
.hljs-selector-attr,
.hljs-selector-pseudo {
  color: #7dd3a8;
}

.hljs-regexp,
.hljs-link {
  color: #f28779;
}

.hljs-deletion {
  color: #f2789f;
  background: rgba(242, 120, 159, 0.12);
}

.hljs-addition {
  color: #7dd3a8;
  background: rgba(125, 211, 168, 0.12);
}

.hljs-strong {
  font-weight: 700;
}

.hljs-emphasis {
  font-style: italic;
}