/* ---------- Books: archive + single (archive-book.php, single-book.php, template-parts/book-card.php) ---------- */
.books-archive{background:var(--bg-50)}
.books-hero{padding:56px 0 52px}
.books-hero h1{
  font-size:clamp(30px,3.6vw,44px);
  line-height:1.08;
  letter-spacing:-.03em;
  font-weight:800;
  color:var(--white);
  margin:10px 0 16px;
  max-width:20em;
}
.books-hero p.lead{font-size:16px;line-height:1.6;color:#B7C6D4;max-width:64ch;margin:0}
.books-count{
  margin:22px 0 0;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:11px;
  font-weight:800;
  letter-spacing:.15em;
  text-transform:uppercase;
  color:#7E90A2;
}

/* Grid + card */
.bk-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:22px}
.bk-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--white);
  border:1px solid var(--line-300);
  border-radius:var(--radius-sm);
  overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.bk-card:hover,
.bk-card:focus-within{transform:translateY(-2px);border-color:#BFD6F6;box-shadow:var(--shadow)}
.bk-card-cover{
  position:relative;
  aspect-ratio:3 / 4;
  background:linear-gradient(150deg,#EDF2F7,#DEE6ED);
  border-bottom:1px solid var(--line-200);
}
.bk-card-cover img{width:100%;height:100%;object-fit:cover}
.bk-cover-empty{position:absolute;inset:0;display:block}
.bk-cover-empty:after{
  content:"";
  position:absolute;
  top:50%;
  left:50%;
  width:64px;
  height:64px;
  transform:translate(-50%,-50%);
  border-radius:50%;
  border:9px solid #C3CFDA;
  box-shadow:inset 0 0 0 6px #F2F6F9;
}
.bk-card-body{padding:16px;display:flex;flex-direction:column;flex:1}
.bk-card-title{font-size:15px;line-height:1.35;letter-spacing:-.01em;margin:0 0 7px;color:var(--ocean-950)}
.bk-card-title a{color:inherit}
.bk-card-title a:after{content:"";position:absolute;inset:0;border-radius:inherit}
.bk-card-author{margin:0 0 10px;font-size:12.5px;line-height:1.5;color:var(--ink-600)}
.bk-card-meta{
  margin:0;
  font-size:10.5px;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--ink-400);
  line-height:1.6;
}
.bk-card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line-200);
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
}
.bk-price{font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--ocean-900)}
.bk-price.is-quote{
  font-family:var(--font-body);
  font-size:10.5px;
  font-weight:800;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--blue-700);
}
.bk-code{font-size:10px;font-weight:800;letter-spacing:.08em;color:var(--ink-400)}

/* Empty state + pager */
.bk-empty{background:var(--white);border:1px solid var(--line-300);border-radius:var(--radius);padding:44px 28px;text-align:center}
.bk-empty p{color:var(--ink-600);font-size:14px;margin:0 0 18px}
.bk-pager{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:34px;flex-wrap:wrap;font-size:13px}
.bk-pager a,
.bk-pager .current{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:36px;
  height:36px;
  padding:0 10px;
  border:1px solid var(--line-300);
  border-radius:var(--radius-sm);
  background:var(--white);
  color:var(--ink-900);
  font-weight:700;
}
.bk-pager a:hover{border-color:var(--blue-700);color:var(--blue-700)}
.bk-pager .current{background:var(--blue-700);border-color:var(--blue-700);color:var(--white)}/* ---------- Single book ---------- */
.bk-single-band{padding:44px 0 72px;background:var(--bg-50)}
.bk-crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  margin:0 0 30px;
  font-size:11px;
  font-weight:800;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--ink-400);
}
.bk-crumbs a{color:var(--blue-700)}
.bk-crumbs a:hover{color:var(--blue-600)}
.bk-crumbs-current{font-size:12.5px;font-weight:600;letter-spacing:.02em;text-transform:none;color:var(--ink-600)}
.bk-single-grid{display:grid;grid-template-columns:minmax(240px,360px) 1fr;gap:52px;align-items:start}
.bk-cover{
  position:relative;
  margin:0;
  aspect-ratio:3 / 4;
  background:linear-gradient(150deg,#EDF2F7,#DEE6ED);
  border:1px solid var(--line-300);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.bk-cover img{width:100%;height:100%;object-fit:cover}
.bk-details h1{
  font-size:clamp(26px,3vw,38px);
  line-height:1.12;
  letter-spacing:-.03em;
  font-weight:800;
  color:var(--ocean-950);
  margin:10px 0;
  max-width:22em;
}
.bk-byline{margin:0 0 22px;font-size:14px;color:var(--ink-600)}
.bk-lead{margin:0 0 22px;font-size:15px;line-height:1.65;color:var(--ink-600);max-width:60ch}
.bk-specs{margin:0;border-top:1px solid var(--line-200)}
.bk-spec{display:grid;grid-template-columns:minmax(120px,190px) 1fr;gap:14px;padding:11px 0;border-bottom:1px solid var(--line-200)}
.bk-spec dt{
  margin:0;
  padding-top:2px;
  font-size:10.5px;
  font-weight:800;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink-400);
}
.bk-spec dd{margin:0;font-size:13.5px;font-weight:600;color:var(--ocean-950)}
.bk-buy{
  margin:28px 0 0;
  padding:22px;
  background:var(--white);
  border:1px solid var(--line-300);
  border-radius:var(--radius);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.bk-buy-label{display:block;margin-bottom:7px;font-size:10.5px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-400)}
.bk-buy-value{font-family:var(--font-mono);font-size:30px;line-height:1;font-weight:700;color:var(--ocean-900)}
.bk-buy-value.is-quote{font-family:var(--font-body);font-size:15px;font-weight:700;color:var(--blue-700)}
.bk-buy-actions{display:flex;gap:10px;flex-wrap:wrap}
.bk-note{margin:26px 0 0;padding-top:20px;border-top:1px solid var(--line-200);font-size:13.5px;line-height:1.7;color:var(--ink-600)}
.bk-note p{margin:0 0 12px}
.bk-note p:last-child{margin-bottom:0}
.bk-locked{max-width:520px;padding:28px;background:var(--white);border:1px solid var(--line-300);border-radius:var(--radius)}

/* More books */
.bk-more{padding:64px 0}
.bk-more-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:24px}
.bk-more-head h2{margin:0}
.bk-more-link{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-700)}
.bk-more-link:hover{color:var(--blue-600)}

@media (max-width:1000px){
  .bk-single-grid{grid-template-columns:1fr;gap:34px}
  .bk-cover{max-width:360px}
}
@media (max-width:680px){
  .books-hero{padding:46px 0 40px}
  .bk-grid{grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:14px}
  .bk-card-body{padding:13px}
  .bk-card-title{font-size:13.5px}
  .bk-price{font-size:13.5px}
  .bk-single-band{padding:32px 0 56px}
  .bk-spec{grid-template-columns:1fr;gap:4px}
  .bk-buy{padding:18px}
  .bk-buy-actions{width:100%}
  .bk-buy-actions .btn{flex:1}
  .bk-more{padding:48px 0}
}