/* ============================================================
   RRK Labs — Blog index + single article.
   Extends homepage.css (tokens, header, marquee, buttons, .wrap,
   .foot) and reuses .crumb / .prose from shop.css + page.css.
   Load AFTER homepage.css and page.css.
   ============================================================ */

/* ---------- Index header ---------- */
.blog-head{padding-block:1.3rem clamp(1.5rem,3vw,2.2rem)}
.blog-head .eyebrow{display:block;margin-bottom:.85rem}
.blog-head h1{font-size:clamp(2.4rem,6vw,4rem);font-weight:700;letter-spacing:-.035em;line-height:1;color:var(--ink)}
.blog-head .lead{margin-top:1rem;max-width:62ch}

.blog-bar{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;
  margin-top:clamp(1.3rem,3vw,1.9rem);padding-bottom:1.1rem;border-bottom:1px solid var(--border);
  margin-bottom:clamp(1.6rem,3.5vw,2.3rem)}
.blog-bar .count{font-family:var(--fm);font-size:.8rem;color:var(--ink-3)}
.blog-bar .count b{color:var(--ink-1);font-weight:500}
.blog-bar .note{font-family:var(--fm);font-size:.76rem;color:var(--ink-4);display:inline-flex;align-items:center;gap:.4rem}
.blog-bar .note i{color:var(--accent-ink);font-size:1rem}

/* ---------- Card grid — 3 across ---------- */
.bgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.bcard{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.bcard:hover{transform:translateY(-5px);border-color:var(--border-2);box-shadow:0 30px 52px -34px rgba(27,26,22,.42)}
.bcard .media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);display:block}
.bcard .media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.bcard:hover .media img{transform:scale(1.045)}
/* No featured image -> typographic tile instead of an empty grey box */
.bcard .media--blank{display:grid;place-items:center;background:
  radial-gradient(120% 120% at 30% 0%,var(--surface) 0%,var(--surface-2) 100%)}
.bcard .media--blank span{font-family:var(--fm);font-size:1.5rem;letter-spacing:.22em;color:var(--ink-4);
  text-transform:uppercase;padding-left:.22em}
.bcard .info{padding:1.1rem 1.15rem 1.3rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.bcard .meta{font-family:var(--fm);font-size:.7rem;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-4);
  display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}
.bcard .meta .dot{width:3px;height:3px;border-radius:50%;background:var(--border-2);flex:none}
.bcard h2{font-family:var(--fs);font-weight:600;font-size:1.12rem;letter-spacing:-.015em;color:var(--ink);line-height:1.28}
.bcard h2 a{transition:color .2s}
.bcard h2 a:hover{color:var(--accent-ink)}
.bcard p{color:var(--ink-2);font-size:.94rem;line-height:1.6;margin:0}
.bcard .more{margin-top:auto;padding-top:.9rem;font-family:var(--fm);font-size:.78rem;color:var(--accent-ink);
  display:inline-flex;align-items:center;gap:.35rem}
.bcard .more i{font-size:1rem;transition:transform .25s var(--ease)}
.bcard:hover .more i{transform:translateX(3px)}

/* Empty state */
.blog-empty{text-align:center;padding:clamp(2.5rem,7vw,4.5rem) 1rem;border:1px dashed var(--border-2);
  border-radius:var(--r);background:var(--surface)}
.blog-empty i{font-size:2rem;color:var(--ink-4);display:block;margin-bottom:.8rem}
.blog-empty h2{font-size:1.3rem;margin-bottom:.5rem}
.blog-empty p{color:var(--ink-2);max-width:44ch;margin:0 auto}

/* ---------- Pagination ---------- */
.blog-pager{margin-top:clamp(2rem,4vw,3rem);display:flex;justify-content:center}
.blog-pager .pages{display:flex;gap:.45rem;align-items:center;flex-wrap:wrap}
.blog-pager .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:42px;height:42px;
  padding:0 .7rem;border:1px solid var(--border);border-radius:var(--pill);background:var(--surface);
  font-family:var(--fm);font-size:.85rem;color:var(--ink-2);transition:background .2s,color .2s,border-color .2s}
.blog-pager a.page-numbers:hover{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.blog-pager .page-numbers.current{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.blog-pager .page-numbers.dots{border-color:transparent;background:transparent}

/* ============================================================
   Single article
   ============================================================ */
.post-head{padding-block:1.3rem clamp(1.5rem,3vw,2.2rem);border-bottom:1px solid var(--border);
  margin-bottom:clamp(1.7rem,3.5vw,2.6rem)}
.post-head .eyebrow{display:block;margin-bottom:.85rem}
.post-head h1{font-size:clamp(2rem,5vw,3.15rem);font-weight:700;letter-spacing:-.03em;line-height:1.04;color:var(--ink)}
.post-head .post-meta{margin-top:1.15rem;font-family:var(--fm);font-size:.8rem;color:var(--ink-4);
  display:flex;align-items:center;gap:.55rem;flex-wrap:wrap}
.post-head .post-meta i{color:var(--accent-ink);font-size:.95rem}
.post-head .post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--border-2);flex:none}

.post-cover{margin-bottom:clamp(1.6rem,3.5vw,2.4rem);border-radius:var(--r);overflow:hidden;border:1px solid var(--border)}
.post-cover img{width:100%;height:auto}

/* Article body reuses .prose from page.css; these fill the gaps
   that only appear in posts (blockquote, figures, code, tables). */
.prose figure{margin:1.6rem 0}
.prose figure img{border-radius:var(--r-sm);border:1px solid var(--border)}
.prose figcaption{font-family:var(--fm);font-size:.76rem;color:var(--ink-4);margin-top:.5rem;text-align:center}
.prose blockquote{margin:1.6rem 0;padding:.2rem 0 .2rem 1.2rem;border-left:3px solid var(--accent);
  color:var(--ink-1);font-size:1.05rem;line-height:1.65}
.prose blockquote p:last-child{margin-bottom:0}
.prose code{font-family:var(--fm);font-size:.88em;background:var(--surface-2);padding:.12em .38em;border-radius:5px}
.prose pre{background:var(--dark);color:#E7E1D6;padding:1rem 1.1rem;border-radius:var(--r-sm);overflow-x:auto;margin:0 0 1.2rem}
.prose pre code{background:none;padding:0;color:inherit}
.prose table{width:100%;border-collapse:collapse;font-size:.92rem;margin:0 0 1.3rem}
.prose th,.prose td{padding:.6rem .8rem;border:1px solid var(--border);text-align:left}
.prose th{background:var(--surface-2);font-family:var(--fm);font-size:.72rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink-3);font-weight:500}
.prose hr{border:0;border-top:1px solid var(--border);margin:2rem 0}

/* RUO reminder under every article */
.post-ruo{margin-top:clamp(2rem,4vw,2.8rem);padding:1.1rem 1.2rem;background:var(--surface);
  border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:var(--r-sm);
  display:flex;gap:.75rem;align-items:flex-start}
.post-ruo i{color:var(--accent-ink);font-size:1.2rem;flex:none;margin-top:.1rem}
.post-ruo p{font-size:.88rem;color:var(--ink-2);line-height:1.6;margin:0}

/* Prev / next */
.post-nav{margin-top:clamp(2rem,4vw,3rem);padding-top:1.6rem;border-top:1px solid var(--border);
  display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.post-nav a{display:flex;flex-direction:column;gap:.35rem;padding:1rem 1.1rem;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r);transition:border-color .2s,transform .2s var(--ease)}
.post-nav a:hover{border-color:var(--border-2);transform:translateY(-3px)}
.post-nav .dir{font-family:var(--fm);font-size:.7rem;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-4);
  display:inline-flex;align-items:center;gap:.35rem}
.post-nav .t{font-weight:600;color:var(--ink);font-size:.98rem;line-height:1.35;letter-spacing:-.01em}
.post-nav .next{text-align:right;align-items:flex-end}

/* Back to blog */
.post-back{margin-top:1.8rem;text-align:center}

@media (max-width:1080px){
  .bgrid{grid-template-columns:repeat(2,1fr);gap:1.15rem}
}
@media (max-width:700px){
  .bgrid{grid-template-columns:1fr;gap:1rem}
  .blog-head{padding-block:.8rem 1.2rem}
  .post-nav{grid-template-columns:1fr}
  .post-nav .next{text-align:left;align-items:flex-start}
}