/* ══════════════════════════════════════════════
   المكتبة الرقمية - ملف CSS
══════════════════════════════════════════════ */

/* ── Hero المكتبة ── */
.lib-hero {
  position: relative;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
  color: white;
  padding: 80px 0 60px;
  overflow: hidden;
  text-align: center;
}
.lib-hero-decor { position: absolute; inset: 0; pointer-events: none; }
.lib-circle {
  position: absolute;
  border-radius: 50%;
  opacity: .1;
  background: #D4AF37;
}
.lib-circle-1 { width: 400px; height: 400px; top: -150px; left: -100px; }
.lib-circle-2 { width: 300px; height: 300px; bottom: -100px; right: -80px; }

.lib-hero-content { position: relative; z-index: 1; }
.lib-hero-badge {
  display: inline-block;
  background: rgba(212,175,55,.15);
  border: 1px solid rgba(212,175,55,.4);
  color: #D4AF37;
  padding: 8px 24px;
  border-radius: 100px;
  font-size: .9rem;
  font-weight: 700;
  margin-bottom: 20px;
}
.lib-hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  margin-bottom: 12px;
  color: white;
}
.lib-hero-sub {
  color: rgba(255,255,255,.7);
  font-size: 1.05rem;
  line-height: 1.9;
  margin-bottom: 36px;
}

/* إحصائيات Hero */
.lib-stats-row {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 20px;
}
.lib-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.lib-stat span:first-child {
  font-size: 2rem;
  font-weight: 900;
  color: #D4AF37;
}
.lib-stat span:last-child {
  font-size: .82rem;
  color: rgba(255,255,255,.65);
}

/* ── بطاقات الأقسام ── */
.lib-cats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 8px;
}
.lib-cat-card {
  display: flex;
  flex-direction: column;
  padding: 36px 28px;
  border-radius: 20px;
  text-decoration: none;
  color: white;
  position: relative;
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
  box-shadow: 0 4px 24px rgba(0,0,0,.12);
}
.lib-cat-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px rgba(0,0,0,.2); }

.lib-cat-edu  { background: linear-gradient(135deg, #0B6B3A, #1FAF5A); }
.lib-cat-var  { background: linear-gradient(135deg, #7C3AED, #9F67FF); }
.lib-cat-tech { background: linear-gradient(135deg, #0369a1, #0EA5E9); }

.lib-cat-icon  { font-size: 3rem; margin-bottom: 16px; }
.lib-cat-title { font-size: 1.4rem; font-weight: 800; margin-bottom: 10px; }
.lib-cat-desc  { font-size: .9rem; opacity: .85; line-height: 1.7; margin-bottom: 20px; flex: 1; }
.lib-cat-count {
  display: inline-block;
  background: rgba(255,255,255,.2);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: .85rem;
  font-weight: 700;
  margin-bottom: 12px;
  width: fit-content;
}
.lib-cat-arrow {
  font-size: 1.3rem;
  transition: transform .3s;
  direction: ltr;
}
.lib-cat-card:hover .lib-cat-arrow { transform: translateX(-6px); }

/* ── شبكة الكتب ── */
.lib-books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 24px;
}
.lib-book-card {
  display: flex;
  flex-direction: column;
  background: white;
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 2px 16px rgba(0,0,0,.07);
  transition: transform .3s, box-shadow .3s;
}
.lib-book-card:hover { transform: translateY(-5px); box-shadow: 0 8px 32px rgba(0,0,0,.13); }

.lib-book-img-wrap {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: #f5f5f5;
}
.lib-book-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.lib-book-card:hover .lib-book-cover { transform: scale(1.04); }
.lib-book-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}
.lib-book-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  color: white;
  font-size: .7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 100px;
}
.lib-book-pdf-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background: #DC2626;
  color: white;
  font-size: .7rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
}

.lib-book-body {
  padding: 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.lib-book-title  { font-size: .95rem; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; line-height: 1.4; }
.lib-book-author { font-size: .78rem; color: var(--text-mid); margin-bottom: 4px; }
.lib-book-pages  { font-size: .78rem; color: var(--text-light); margin-bottom: 6px; }
.lib-book-desc   { font-size: .78rem; color: var(--text-mid); line-height: 1.6; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 8px; }
.lib-book-footer { display: flex; justify-content: space-between; align-items: center; margin-top: auto; }
.lib-book-read   { font-size: .78rem; color: var(--primary); font-weight: 600; }
.lib-book-dl     { font-size: .75rem; background: var(--primary); color: white; padding: 3px 10px; border-radius: 100px; }

/* ── Hero القسم (صفحة library-category) ── */
.lib-cat-hero {
  --cat-color: #0B6B3A;
  --cat-dark:  #084d2a;
  background: linear-gradient(135deg, var(--cat-dark), var(--cat-color));
  color: white;
  padding: 60px 0 50px;
  text-align: center;
}
.lib-breadcrumb {
  margin-bottom: 20px;
  font-size: .85rem;
  color: rgba(255,255,255,.7);
}
.lib-breadcrumb a { color: rgba(255,255,255,.85); text-decoration: none; }
.lib-breadcrumb a:hover { color: #D4AF37; }
.lib-cat-hero-icon { font-size: 3.5rem; margin-bottom: 16px; }
.lib-cat-hero h1 { font-size: clamp(1.6rem, 4vw, 2.6rem); font-weight: 900; margin-bottom: 10px; }
.lib-cat-hero p  { color: rgba(255,255,255,.75); font-size: .95rem; }

/* ── تفاصيل الكتاب ── */
.lib-page-breadcrumb {
  background: var(--gray-100);
  padding: 12px 0;
  font-size: .85rem;
  color: var(--text-mid);
  border-bottom: 1px solid var(--gray-200);
}
.lib-page-breadcrumb a { color: var(--primary); text-decoration: none; }

.book-detail-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 768px) {
  .book-detail-layout { grid-template-columns: 1fr; }
}

.book-detail-img-col { display: flex; flex-direction: column; gap: 16px; }
.book-detail-cover {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,.15);
  object-fit: cover;
}
.book-detail-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
}
.book-detail-dl {
  display: block;
  text-align: center;
  text-decoration: none;
}
.book-detail-no-pdf {
  text-align: center;
  padding: 12px;
  background: #f5f5f5;
  border-radius: 8px;
  font-size: .85rem;
  color: var(--text-light);
}

.book-detail-meta-box {
  background: var(--gray-100);
  border-radius: 12px;
  padding: 16px;
}
.book-meta-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-200);
  font-size: .88rem;
}
.book-meta-item:last-child { border-bottom: none; }
.book-meta-label { color: var(--text-mid); }
.book-meta-val   { font-weight: 700; color: var(--text-dark); }

.book-detail-badge {
  display: inline-block;
  color: white;
  font-size: .8rem;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.book-detail-title  { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 900; color: var(--text-dark); margin-bottom: 12px; line-height: 1.4; }
.book-detail-author { font-size: 1rem; color: var(--text-mid); margin-bottom: 24px; }
.book-detail-desc-box {
  background: var(--gray-100);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 28px;
}
.book-detail-desc-box h3 { font-size: 1rem; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.book-detail-desc { font-size: .95rem; color: var(--text-mid); line-height: 2; white-space: pre-wrap; }
.book-detail-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .lib-books-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .lib-stats-row  { gap: 20px; }
}