@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

/* ============================================
   BIBLIOTECA DIGITAL CLAEC — sistema de diseño
   ============================================ */
.claec-lib{
  --ink-navy:      #101B33;
  --ink-navy-2:    #182A4D;
  --ink-navy-3:    #1F335C;
  --paper:         #F4EEDD;
  --paper-dim:     #C9C2AC;
  --gold:          #C9A227;
  --gold-light:    #E7C766;
  --radius:        14px;
  --shadow:        0 20px 40px -18px rgba(0,0,0,.55);
}

.claec-lib *{ box-sizing:border-box; }

.claec-lib{
  background: var(--ink-navy);
  color: var(--paper);
  font-family:'Inter', system-ui, sans-serif;
  line-height:1.5;
  padding: 40px 0 56px;
  overflow-x:hidden;
  font-size: 16px;
  border-radius: 18px;
}

.claec-lib .wrap{
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

.claec-controls{
  display:flex;
  flex-wrap:wrap;
  gap: 14px;
  align-items:center;
  margin-bottom: 30px;
}
.claec-search{
  position:relative;
  flex: 1 1 260px;
  max-width: 380px;
}
.claec-search input{
  width:100%;
  background: rgba(244,238,221,.06);
  border: 1px solid rgba(244,238,221,.22);
  color: var(--paper);
  padding: 13px 16px 13px 42px;
  border-radius: 999px;
  font-family:'Inter',sans-serif;
  font-size: .95rem;
  outline:none;
  transition: border-color .2s, background .2s;
}
.claec-search input::placeholder{ color: var(--paper-dim); }
.claec-search input:focus{
  border-color: var(--gold);
  background: rgba(244,238,221,.1);
}
.claec-search svg{
  position:absolute; left:15px; top:50%; transform:translateY(-50%);
  width:16px; height:16px; opacity:.6;
}
.claec-filters{
  display:flex; gap:8px; flex-wrap:wrap;
}
.claec-filters button{
  font-family:'IBM Plex Mono', monospace;
  font-size:.75rem;
  letter-spacing:.04em;
  text-transform:uppercase;
  background: transparent;
  border: 1px solid rgba(244,238,221,.28);
  color: var(--paper-dim);
  padding: 10px 18px;
  border-radius: 999px;
  cursor:pointer;
  transition: all .18s ease;
}
.claec-filters button:hover{
  border-color: var(--gold-light);
  color: var(--paper);
}
.claec-filters button.active{
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-navy);
  font-weight:600;
}

/* ---------- GRID ---------- */
.claec-section-title{
  display:flex; align-items:baseline; justify-content:space-between;
  margin: 0 0 26px;
  gap: 16px; flex-wrap:wrap;
}
.claec-section-title h2{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size: 1.5rem;
  margin:0;
  color: var(--paper);
  padding-bottom: 0;
}
.claec-count{
  font-family:'IBM Plex Mono', monospace;
  font-size:.8rem;
  color: var(--paper-dim);
}

.claec-grid{
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 26px;
}

.claec-card{
  background: linear-gradient(180deg, var(--ink-navy-3), var(--ink-navy-2));
  border-radius: var(--radius);
  border: 1px solid rgba(244,238,221,.1);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  position:relative;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.claec-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(201,162,39,.4);
}

.claec-card .spine-tab{
  position:absolute;
  top:0; left: 22px;
  font-family:'IBM Plex Mono', monospace;
  font-size:.68rem;
  letter-spacing:.05em;
  text-transform:uppercase;
  padding: 6px 14px 8px;
  border-radius: 0 0 8px 8px;
  z-index:2;
  box-shadow: 0 4px 10px rgba(0,0,0,.3);
}

.claec-card .cover{
  aspect-ratio: 4/3;
  overflow:hidden;
  background: var(--ink-navy);
  position:relative;
}
.claec-card .cover img{
  width:100%; height:100%; object-fit:cover;
  display:block;
  transition: transform .5s ease;
  filter: saturate(1.02);
  margin: 0;
  padding: 0;
}
.claec-card:hover .cover img{ transform: scale(1.06); }
.claec-card .cover::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, transparent 55%, rgba(16,27,51,.75));
}

.claec-card .body{
  padding: 20px 22px 22px;
  display:flex;
  flex-direction:column;
  gap: 10px;
  flex:1;
}
.claec-card .call-number{
  font-family:'IBM Plex Mono', monospace;
  font-size:.7rem;
  color: var(--gold-light);
  letter-spacing:.04em;
}
.claec-card h3{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size: 1.15rem;
  line-height:1.25;
  margin:0;
  color: var(--paper);
  padding-bottom: 0;
}
.claec-card .author{
  font-size:.85rem;
  color: var(--paper-dim);
  margin: -4px 0 2px;
}
.claec-card .meta{
  display:flex; flex-wrap:wrap; gap:6px;
  margin-top:2px;
}
.claec-card .meta span{
  font-family:'IBM Plex Mono', monospace;
  font-size:.66rem;
  text-transform:uppercase;
  letter-spacing:.03em;
  color: var(--paper);
  background: rgba(244,238,221,.08);
  border: 1px solid rgba(244,238,221,.16);
  padding: 4px 9px;
  border-radius:999px;
}

.claec-card .actions{
  margin-top:auto;
  padding-top: 14px;
  display:flex; gap:10px;
  flex-wrap:wrap;
}
.claec-card .actions a,
.claec-single .actions a{
  flex:1;
  text-align:center;
  font-size:.82rem;
  font-weight:600;
  padding: 10px 14px;
  border-radius: 999px;
  text-decoration:none;
  transition: all .18s ease;
  white-space:nowrap;
}
.claec-btn-primary{
  background: var(--gold);
  color: var(--ink-navy) !important;
}
.claec-btn-primary:hover{ background: var(--gold-light); }
.claec-btn-ghost{
  border: 1px solid rgba(244,238,221,.3);
  color: var(--paper) !important;
}
.claec-btn-ghost:hover{ border-color: var(--gold-light); color: var(--gold-light) !important; }

.claec-empty{
  display:none;
  text-align:center;
  padding: 60px 20px;
  color: var(--paper-dim);
  font-family:'IBM Plex Mono', monospace;
  font-size:.9rem;
}

/* ---------- FICHA INDIVIDUAL ---------- */
.claec-single-book{
  display:grid;
  grid-template-columns: 340px 1fr;
  gap: 40px;
  align-items:start;
}
.claec-single-cover img{
  width:100%;
  border-radius: var(--radius);
  display:block;
  box-shadow: var(--shadow);
}
.claec-single-info h1{
  font-family:'Fraunces', serif;
  font-weight:600;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 6px 0 10px;
  color: var(--paper);
}
.claec-single-info .author{ color: var(--paper-dim); margin: 0 0 10px; }
.claec-single-info .meta{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:18px; }
.claec-single-info .meta span{
  font-family:'IBM Plex Mono', monospace;
  font-size:.7rem;
  text-transform:uppercase;
  color: var(--paper);
  background: rgba(244,238,221,.08);
  border: 1px solid rgba(244,238,221,.16);
  padding: 4px 10px;
  border-radius:999px;
}
.claec-single-description{ color: var(--paper-dim); max-width: 62ch; }

@media (max-width: 720px){
  .claec-single-book{ grid-template-columns: 1fr; }
}

@media (max-width: 640px){
  .claec-grid{ grid-template-columns: 1fr; }
  .claec-controls{ flex-direction:column; align-items:stretch; }
  .claec-search{ max-width:none; }
}