/* Book detail — lifted from the book mockup (bk-hero). */
.bk-hero {
  position: relative; overflow: hidden;
  padding: 28px 0 56px;
  background:
    radial-gradient(860px 480px at 20% 0%, var(--accent-tint), transparent 70%),
    linear-gradient(180deg, rgba(251, 240, 221, 0.2) 0%, var(--paper-3) 100%);
  border-bottom: 1px solid var(--line);
}
.bk-crumb { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-3); font-weight: 500; margin-bottom: 22px; text-decoration: none; transition: color 0.15s; }
.bk-crumb:hover { color: var(--accent); }
.bk-crumb svg { width: 14px; height: 14px; }
[dir="rtl"] .bk-crumb svg { transform: scaleX(-1); }
.bk-hero .grid { display: grid; grid-template-columns: 280px 1fr; gap: 56px; align-items: start; }
.bk-hero .cover-wrap {
  aspect-ratio: 5 / 8; border-radius: 8px; overflow: hidden;
  box-shadow: 0 28px 64px rgba(40, 28, 12, 0.30), 0 6px 14px rgba(40, 28, 12, 0.14);
  background: var(--paper-2); position: sticky; top: 88px;
}
.bk-hero .cover-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bk-hero .meta-col { padding-top: 6px; }
.bk-hero .eb { font-size: 11px; font-weight: 700; letter-spacing: 1.4px; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
[dir="rtl"] .bk-hero .eb { letter-spacing: 0; }
.bk-hero h1 { font-family: var(--serif-fa); font-weight: 600; font-size: 44px; line-height: 1.12; letter-spacing: -1px; margin: 0 0 12px; text-align: start; }
.bk-hero .by { font-size: 17px; line-height: 1.6; color: var(--ink-2); margin: 0 0 20px; text-align: start; }
.bk-hero .by strong { color: var(--ink); font-weight: 700; }
.bk-hero .desc { font-size: 15.5px; line-height: 1.85; color: var(--ink-2); margin: 0 0 26px; max-width: 62ch; }
.bk-hero .desc p { margin: 0 0 0.8em; }
.bk-specs { display: grid; grid-template-columns: auto 1fr; gap: 8px 16px; margin: 0 0 26px; font-size: 13.5px; max-width: 520px; }
.bk-specs dt { color: var(--ink-3); font-weight: 500; }
.bk-specs dd { margin: 0; color: var(--ink); font-weight: 500; }
.bk-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.bk-btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 700; font-size: 14.5px;
  border: none; cursor: pointer; text-decoration: none; letter-spacing: -0.1px;
  box-shadow: 0 6px 18px rgba(232, 154, 60, 0.35);
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
}
.bk-btn-primary:hover { background: var(--accent-deep); transform: translateY(-1px); }
.bk-btn-secondary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 999px;
  background: #fff; color: var(--ink-2); font-weight: 600; font-size: 14px;
  border: 1px solid var(--line); cursor: pointer; text-decoration: none;
  transition: border-color 0.15s, color 0.15s;
}
.bk-btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.bk-icon-btn {
  width: 44px; height: 44px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--ink-2); padding: 0;
}
.bk-icon-btn:hover { border-color: var(--accent); color: var(--accent); }

.bk-more { padding: 56px 0 80px; border-top: 1px solid var(--line); background: var(--paper-3); }
.bk-more-head { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 28px; flex-wrap: wrap; }
.bk-more-head h3 { font-family: var(--serif-fa); font-weight: 500; font-size: 26px; letter-spacing: -0.4px; margin: 0; color: var(--ink); }
.bk-more-head h3 em { color: var(--accent); font-style: normal; }
.bk-more-head .more-link { font-size: 13px; color: var(--ink-3); text-decoration: none; }
.bk-more-head .more-link:hover { color: var(--accent); }
.bk-more-head .more-link .kal-dir-arrow { display: inline-block; }
[dir="rtl"] .bk-more-head .more-link .kal-dir-arrow { transform: scaleX(-1); }
.bk-more-row {
  display: grid; grid-auto-flow: column; grid-auto-columns: 154px; gap: 22px;
  overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 10px;
}
.bk-more-card { display: flex; flex-direction: column; gap: 10px; scroll-snap-align: start; text-decoration: none; color: inherit; }
.bk-more-card .cover-wrap {
  aspect-ratio: 5/8; border-radius: 6px; overflow: hidden; background: var(--paper-2);
  box-shadow: 0 8px 16px rgba(30,20,40,0.12); transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.bk-more-card:hover .cover-wrap { transform: translateY(-4px); box-shadow: 0 16px 28px rgba(30,20,40,0.20); }
.bk-more-card .cover-wrap img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bk-more-card h5 { font-family: var(--serif-fa); font-size: 14px; font-weight: 600; line-height: 1.35; color: var(--ink); margin: 0; }
.bk-more-card .auth { font-size: 12px; color: var(--ink-3); margin: 0; }

@media (max-width: 720px) {
  .bk-hero .grid { grid-template-columns: 160px 1fr; gap: 24px; }
  .bk-hero .cover-wrap { position: static; }
  .bk-hero h1 { font-size: 30px; }
}
@media (max-width: 520px) {
  .bk-hero .grid { grid-template-columns: 1fr; }
  .bk-hero .cover-wrap { max-width: 200px; }
}