/* ============================================================
   Blog — loaded only on /blog pages, on top of reset.css + style.css.
   Reuses the design tokens from style.css (:root / body.high-contrast).
   ============================================================ */

/* ---------- Header (no JS on blog pages: border always on, nav always visible) ---------- */
.blog-header { border-bottom: 1px solid var(--border); }
.blog-nav { display: flex; gap: 24px; }

.blog-main { padding-top: var(--header-h); }

/* ---------- Blog index ---------- */
.blog-index {
  max-width: 840px;
  margin: 0 auto;
  padding: 72px 24px 96px;
}
.blog-index .section__intro { margin-bottom: 40px; }
.feed-link { color: inherit; text-decoration: none; }
.feed-link:hover { color: var(--cyan); }

.post-list { display: flex; flex-direction: column; gap: 14px; }
.post-list__empty { padding: 32px 0; }

.post-item {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  align-items: baseline;
  gap: 20px;
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.post-item:hover {
  border-color: var(--border-strong);
  background: var(--surface-2);
  transform: translateY(-2px);
}
.post-item__date { letter-spacing: 0.08em; color: var(--subtle); }
.post-item__title {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.35;
  margin-bottom: 4px;
}
.post-item:hover .post-item__title { color: var(--cyan); }
.post-item__desc { color: var(--muted); font-size: 15px; line-height: 1.55; }
.post-item__arrow {
  font-family: var(--font-mono);
  color: var(--subtle);
  align-self: center;
  transition: color 0.2s, transform 0.2s;
}
.post-item:hover .post-item__arrow { color: var(--cyan); transform: translateX(3px); }

/* ---------- Post page ---------- */
.post {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 24px 96px;
}
.post__eyebrow { margin-bottom: 18px; }
.post__eyebrow .slashes { color: var(--cyan); }
.post__title {
  font-size: clamp(30px, 5vw, 44px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.post__desc {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
  margin-bottom: 8px;
}
.post__head { padding-bottom: 28px; border-bottom: 1px solid var(--border); margin-bottom: 36px; }

/* ---------- Post body typography (rendered markdown) ---------- */
.post__body { font-size: 17px; line-height: 1.75; color: var(--text); }
.post__body > * + * { margin-top: 1.15em; }

.post__body h2, .post__body h3, .post__body h4 {
  font-weight: 700;
  line-height: 1.3;
  margin-top: 2em;
}
.post__body h2 { font-size: 26px; letter-spacing: -0.01em; }
.post__body h2::before { content: '// '; color: var(--cyan); font-family: var(--font-mono); font-size: 0.8em; }
.post__body h3 { font-size: 21px; }
.post__body h4 { font-size: 17px; font-family: var(--font-mono); letter-spacing: 0.04em; }

.post__body a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.post__body a:hover { text-decoration: none; }

.post__body ul, .post__body ol { padding-left: 26px; }
.post__body ul { list-style: none; }
.post__body ul > li { position: relative; }
.post__body ul > li::before { content: '›'; position: absolute; left: -20px; color: var(--cyan); font-family: var(--font-mono); }
.post__body ol { list-style: decimal; }
.post__body li + li { margin-top: 0.5em; }
.post__body li::marker { color: var(--cyan); font-family: var(--font-mono); }

.post__body blockquote {
  border-left: 3px solid var(--cyan);
  background: var(--surface);
  padding: 16px 22px;
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--muted);
  font-style: italic;
}

.post__body img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.post__body hr { border: none; border-top: 1px solid var(--border); margin: 2.2em 0; }

.post__body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 2px 6px;
  color: var(--green);
}
.post__body pre {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  overflow-x: auto;
  line-height: 1.6;
}
.post__body pre code { background: none; border: none; padding: 0; color: var(--text); font-size: 13.5px; }

.post__body table { width: 100%; border-collapse: collapse; font-size: 15px; display: block; overflow-x: auto; }
.post__body th, .post__body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.post__body th { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); background: var(--surface); }

.post__body figcaption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--subtle);
  margin-top: 10px;
}

/* Rouge syntax highlighting — minimal terminal palette */
.highlight .c, .highlight .c1, .highlight .cm { color: var(--subtle); font-style: italic; } /* comments */
.highlight .k, .highlight .kd, .highlight .kn, .highlight .kw { color: var(--cyan); }       /* keywords */
.highlight .s, .highlight .s1, .highlight .s2, .highlight .sb { color: var(--green); }      /* strings */
.highlight .mi, .highlight .mf, .highlight .mh { color: var(--amber); }                     /* numbers */
.highlight .nf, .highlight .nx { color: var(--text); }
.highlight .nt, .highlight .nc { color: var(--cyan); }

/* ---------- Post footer ---------- */
.post__foot {
  margin-top: 56px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.post__back, .post__share {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.post__back:hover, .post__share:hover { color: var(--cyan); }
.post__back .arrow { color: var(--cyan); margin-right: 6px; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  .blog-nav { gap: 14px; }
  .blog-nav .site-header__link--optional { display: none; } /* header must fit a 360px viewport */
  .blog-index, .post { padding-top: 48px; }
  .post-item { grid-template-columns: 1fr; gap: 8px; padding: 18px 18px; }
  .post-item__arrow { display: none; }
  .post__body { font-size: 16px; }
}