/* ────────────────────────────────────────────────────────────────────────
   BLOG STYLES
   Loaded after styles.css — reuses all theme variables (--bg, --phosphor,
   --font-display, --font-mono, etc.) so the blog matches the main site
   without redefining the palette. Organized the same way as styles.css:
     1. Blog header / breadcrumb
     2. Post grid & cards
     3. Article page
     4. Prev/Next + back-to-top
     5. Media queries
──────────────────────────────────────────────────────────────────────── */

/* ── 1. BLOG HEADER ──────────────────────────────────────────────────── */

.blog-crumb {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.62rem; color: var(--text-dimmer);
  letter-spacing: 0.14em; text-transform: uppercase;
  text-decoration: none; margin-bottom: 28px;
  transition: color 0.2s;
}
.blog-crumb:hover { color: var(--phosphor); }
.blog-crumb svg { width: 12px; height: 12px; }

.blog-hero {
  padding: 130px 24px 60px;
  max-width: 1180px; margin: 0 auto;
}
.blog-hero .sec-title { margin-bottom: 20px; }
.blog-intro {
  font-size: 0.88rem; color: var(--text-dim);
  line-height: 1.9; max-width: 560px;
}

/* ── 2. POST GRID & CARDS ─────────────────────────────────────────────── */

.blog-grid {
  max-width: 1180px; margin: 0 auto;
  padding: 20px 24px 100px;
  display: grid; grid-template-columns: 1fr;
  gap: 28px;
}

.post-card {
  display: block; text-decoration: none; color: inherit;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.post-card:hover { border-color: var(--phosphor); transform: translateY(-3px); }

.post-card-media {
  width: 100%; aspect-ratio: 16/9;
  overflow: hidden; background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}
.post-card-media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s var(--ease);
}
.post-card:hover .post-card-media img { transform: scale(1.04); }

.post-card-body { padding: 22px 24px 26px; }

/* Timestamp styled like a serial-console readout — ties the card meta
   back into the embedded-systems / oscilloscope motif from the main site */
.post-card-meta {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.6rem; color: var(--phosphor);
  letter-spacing: 0.08em; margin-bottom: 12px;
}
.post-card-meta time { color: var(--phosphor); }
.post-card-meta .dot-sep { color: var(--text-dimmer); }
.post-card-meta .read-time { color: var(--text-dimmer); }

.post-card-title {
  font-family: var(--font-display);
  font-size: 1.4rem; font-weight: 400; color: var(--text);
  line-height: 1.25; margin-bottom: 10px;
  transition: color 0.2s;
}
.post-card:hover .post-card-title { color: var(--phosphor); }

.post-card-excerpt {
  font-size: 0.82rem; color: var(--text-dim); line-height: 1.75;
  margin-bottom: 18px; max-width: 60ch;
}

.post-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
}

.post-card-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.post-card-tags .tl-tag { font-size: 0.55rem; }

.post-card-read {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.6rem; color: var(--text-dim);
  letter-spacing: 0.1em; text-transform: uppercase;
  white-space: nowrap;
}
.post-card-read svg {
  width: 12px; height: 12px;
  transition: transform 0.2s var(--ease);
}
.post-card:hover .post-card-read { color: var(--phosphor); }
.post-card:hover .post-card-read svg { transform: translateX(3px); }

.blog-empty {
  font-size: 0.85rem; color: var(--text-dimmer);
  padding: 40px 0; text-align: center;
}

/* ── 3. ARTICLE PAGE ──────────────────────────────────────────────────── */

.article-header {
  max-width: 760px; margin: 0 auto;
  padding: 130px 24px 40px;
}

.article-meta {
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
  font-size: 0.62rem; color: var(--phosphor);
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 22px;
}
.article-meta .dot-sep { color: var(--text-dimmer); }
.article-meta .read-time { color: var(--text-dimmer); }

.article-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3.2rem);
  font-weight: 500; line-height: 1.08; letter-spacing: -0.01em;
  color: var(--text); margin-bottom: 22px;
}
.article-title em { font-style: normal; color: var(--phosphor); }

.article-cover {
  width: 100%; aspect-ratio: 16/9;
  border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border);
  margin: 8px 0 4px;
}
.article-cover img { width: 100%; height: 100%; object-fit: cover; }

.article-body {
  max-width: 700px; margin: 0 auto;
  padding: 20px 24px 60px;
  font-size: 0.92rem; color: var(--text-dim); line-height: 1.9;
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.7rem; font-weight: 400; color: var(--text);
  margin: 48px 0 18px; line-height: 1.2;
}
.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 400; color: var(--text);
  margin: 36px 0 14px; line-height: 1.25;
}
.article-body p { margin-bottom: 22px; }
.article-body strong { color: var(--text); }
.article-body a { color: var(--phosphor); text-decoration-color: rgba(247,147,76,0.4); }
.article-body a:hover { text-decoration-color: var(--phosphor); }

.article-body ul, .article-body ol {
  margin: 0 0 22px 0; padding-left: 22px;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 10px; }
.article-body li::marker { color: var(--phosphor); }

.article-body blockquote {
  border-left: 2px solid var(--phosphor);
  padding: 4px 0 4px 20px;
  margin: 28px 0;
  color: var(--text-dim); font-style: italic;
}

.article-body code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--phosphor);
}

.article-body pre {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 20px;
  overflow-x: auto;
  margin: 24px 0;
}
.article-body pre code {
  background: none; border: none; padding: 0;
  color: var(--text-dim); font-size: 0.8rem; line-height: 1.7;
}

.article-body figure { margin: 28px 0; }
.article-body figure img {
  width: 100%; border-radius: 8px; border: 1px solid var(--border);
}
.article-body figcaption {
  font-size: 0.7rem; color: var(--text-dimmer);
  margin-top: 10px; text-align: center;
}

.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 44px; }

/* ── 4. PREV/NEXT + BACK TO TOP ───────────────────────────────────────── */

.article-nav {
  max-width: 700px; margin: 0 auto;
  padding: 0 24px 100px;
  display: grid; grid-template-columns: 1fr; gap: 12px;
}

.article-nav-link {
  display: flex; flex-direction: column; gap: 6px;
  padding: 20px 22px;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none; color: inherit;
  transition: border-color 0.2s, transform 0.2s var(--ease);
}
.article-nav-link:hover { border-color: var(--phosphor); transform: translateY(-2px); }

.article-nav-lbl {
  font-size: 0.58rem; color: var(--text-dimmer);
  letter-spacing: 0.15em; text-transform: uppercase;
  display: flex; align-items: center; gap: 6px;
}
.article-nav-link.next .article-nav-lbl { justify-content: flex-end; }
.article-nav-title {
  font-family: var(--font-display);
  font-size: 1.15rem; color: var(--text);
}
.article-nav-link.next { text-align: right; align-items: flex-end; }

/* ── 5. MEDIA QUERIES ─────────────────────────────────────────────────── */

@media (min-width: 700px) {
  .article-nav { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 961px) {
  .blog-hero { padding: 150px 56px 70px; }
  .blog-grid {
    padding: 20px 56px 120px;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
  .article-header { padding: 150px 56px 44px; }
  .article-body { padding: 20px 56px 70px; }
  .article-nav { padding: 0 56px 120px; }
}

@media (min-width: 1300px) {
  .blog-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ────────────────────────────────────────────────────────────────────────
   6. MARKDOWN CONTENT EXTRAS
   Produced by assets/js/build.js from custom post syntax — see
   posts/_formatting-guide.md for the markdown that generates these.
──────────────────────────────────────────────────────────────────────── */

/* Wrap-around images: ![alt](src){.wrap-left} / {.wrap-right} */
.article-body figure.wrap-left,
.article-body figure.wrap-right {
  max-width: 45%;
  margin-bottom: 20px;
}
.article-body figure.wrap-left  { float: left;  margin-right: 26px; }
.article-body figure.wrap-right { float: right; margin-left: 26px; }
/* Clear floats at the end of the article so tags/nav don't sit beside a
   trailing wrapped image */
.article-body::after { content: ''; display: table; clear: both; }

/* Multi-column blocks: :::cols-2 ... +++ ... ::: */
.blog-cols {
  display: grid; gap: 28px;
  margin: 34px 0; clear: both;
}
.blog-cols-2 { grid-template-columns: repeat(2, 1fr); }
.blog-cols-3 { grid-template-columns: repeat(3, 1fr); }
.blog-col p:last-child { margin-bottom: 0; }

/* Callout blocks: :::callout ... :::  (also callout-tip, callout-warning) */
.callout {
  border: 1px solid var(--border);
  border-left: 3px solid var(--phosphor);
  background: var(--bg-2);
  border-radius: 6px;
  padding: 18px 22px;
  margin: 30px 0;
  font-size: 0.85rem;
}
.callout p:last-child { margin-bottom: 0; }
.callout-tip     { border-left-color: #4CAF82; }
.callout-warning { border-left-color: #D9534F; }

@media (max-width: 700px) {
  .article-body figure.wrap-left,
  .article-body figure.wrap-right {
    float: none; max-width: 100%; margin: 0 0 20px;
  }
  .blog-cols-2, .blog-cols-3 { grid-template-columns: 1fr; }
}

/* ────────────────────────────────────────────────────────────────────────
   7. CODE BLOCK CONTROLS (copy + collapse)
   Markup added client-side by assets/js/code-blocks.js — wraps every
   .article-body pre in a .code-block div with a copy button, and adds a
   collapse/expand toggle for anything over 5 lines.
──────────────────────────────────────────────────────────────────────── */

.code-block {
  position: relative;
  margin: 24px 0;
}
.code-block pre {
  margin: 0;
  transition: max-height 0.3s var(--ease);
}

.code-copy {
  position: absolute;
  top: 10px; right: 10px;
  display: flex; align-items: center; justify-content: center;
  width: 30px; height: 30px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dimmer);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  z-index: 2;
}
.code-copy svg { width: 14px; height: 14px; }
.code-copy:hover { color: var(--phosphor); border-color: var(--phosphor); }
.code-copy.copied { color: #4CAF82; border-color: #4CAF82; }

.code-block.collapsed pre {
  overflow: hidden;
  position: relative;
}
.code-block.collapsed pre::after {
  content: '';
  position: absolute; left: 0; right: 0; bottom: 0; height: 48px;
  background: linear-gradient(to bottom, transparent, var(--bg-2));
  pointer-events: none;
}

.code-toggle {
  display: block; width: 100%;
  margin-top: 8px;
  padding: 9px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.code-toggle:hover { border-color: var(--phosphor); color: var(--phosphor); }

/* ────────────────────────────────────────────────────────────────────────
   8. POST SIGN-OFF
   Small divider + author card shown at the end of every post, between
   the tags and the prev/next nav.
──────────────────────────────────────────────────────────────────────── */

.post-signoff {
  max-width: 700px; margin: 0 auto;
  padding: 4px 24px 40px;
}

.signoff-rule {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 28px;
  color: var(--text-dimmer);
  font-size: 0.6rem; letter-spacing: 0.3em; text-transform: uppercase;
}
.signoff-rule::before,
.signoff-rule::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

.signoff-author {
  display: flex; align-items: center; gap: 16px;
}

.signoff-avatar {
  flex-shrink: 0;
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--phosphor-glow);
  border: 1px solid rgba(247,147,76,0.3);
  color: var(--phosphor);
  font-family: var(--font-display); font-size: 1rem; font-weight: 600;
}

.signoff-name {
  font-family: var(--font-display);
  font-size: 1.05rem; color: var(--text);
}

.signoff-meta {
  font-size: 0.68rem; color: var(--text-dimmer);
  letter-spacing: 0.05em; margin-top: 4px;
}
.signoff-meta time { color: var(--phosphor); }
.signoff-meta .dot-sep { margin: 0 2px; }

@media (min-width: 961px) {
  .post-signoff { padding: 4px 56px 50px; }
}