/* books page additions */

.nav-active{opacity:0.7;}

.hero-footnote{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--slate);margin-top:18px;text-align:center;}

/* book card — library-style */
.grid-books{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;}

.book-card{border:1px solid var(--line);border-radius:10px;background:var(--card);overflow:hidden;transition:transform 0.15s, box-shadow 0.15s;display:flex;flex-direction:column;}
.book-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(24,35,56,0.10);}

.book-cover-wrap{position:relative;width:100%;aspect-ratio:2/3;background:var(--gold-light);overflow:hidden;display:flex;align-items:center;justify-content:center;}
.book-cover-wrap img{width:100%;height:100%;object-fit:cover;display:block;max-width:100%;max-height:100%;}
.book-cover-fallback{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;text-align:center;background:linear-gradient(135deg,var(--gold-light),#E8D5A8);}
.book-cover-fallback i{font-size:32px;color:var(--gold);margin-bottom:8px;opacity:0.6;}
.book-cover-fallback span{font-family:'Fraunces',serif;font-size:13px;color:var(--ink);line-height:1.3;max-width:160px;}

.book-free-badge{position:absolute;top:10px;left:10px;font-family:'IBM Plex Mono',monospace;font-size:9px;text-transform:uppercase;letter-spacing:0.06em;background:var(--sage);color:#fff;padding:4px 8px;border-radius:4px;display:flex;align-items:center;gap:3px;z-index:2;}
.book-free-badge i{font-size:10px;}

.book-info{padding:14px 16px 16px;display:flex;flex-direction:column;flex:1;}

.book-title{font-family:'Fraunces',serif;font-size:16px;line-height:1.3;margin:0 0 2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.book-author{font-size:12px;color:var(--slate);margin-bottom:6px;}
.book-provider{font-family:'IBM Plex Mono',monospace;font-size:10px;text-transform:uppercase;color:var(--gold);letter-spacing:0.05em;margin-bottom:6px;}

.book-tags{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:8px;}
.book-tag{font-family:'IBM Plex Mono',monospace;font-size:9px;text-transform:uppercase;letter-spacing:0.05em;padding:3px 7px;border-radius:4px;}
.book-tag-topic{background:var(--gold-light);color:var(--gold);}
.book-tag-format{background:#E8EEF5;color:#5A6C8A;}

.book-desc{font-size:12px;color:var(--slate);line-height:1.5;margin:0 0 12px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

.book-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:8px;}
.book-foot .visit-btn{font-size:10px;padding:5px 10px;}

/* responsive */
@media(max-width:900px){
  .grid-books{grid-template-columns:1fr 1fr;}
}

@media(max-width:768px){
  .grid-books{grid-template-columns:1fr 1fr;gap:16px;}
  .book-title{font-size:14px;}
  .book-info{padding:10px 12px 14px;}
}

@media(max-width:560px){
  .grid-books{grid-template-columns:1fr;max-width:380px;margin:0 auto;}
  .book-cover-wrap{aspect-ratio:2/3;}
  .book-free-badge{font-size:8px;padding:3px 6px;}
}