*{box-sizing:border-box}:root{--navy:#0c2c4d;--gold:#9a650d;--gold-light:#f5eee0;--line:#ddd9d0;--text:#17314d;--white:#fff}body{margin:0;min-height:100vh;background:linear-gradient(rgba(20,33,44,.28),rgba(20,33,44,.28)),#d8d2c5;font-family:Georgia,"Times New Roman",serif;color:var(--text);padding:18px}.book-sheet{width:min(1140px,100%);margin:auto;background:#fff;border-radius:14px;box-shadow:0 12px 35px rgba(0,0,0,.25);padding:20px;overflow:hidden}.book-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;padding:2px 8px 10px}.eyebrow{color:var(--gold);font-size:15px;font-weight:bold;letter-spacing:.3px}.title-row{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}h1{margin:0;font-size:clamp(48px,6vw,66px);line-height:.95;color:var(--navy)}.title-row p{margin:0;font-size:18px;font-style:italic}.header-actions{display:flex;align-items:center;gap:8px;white-space:nowrap}.book-counter{font-size:13px}.round-button{border:0;width:40px;height:40px;border-radius:50%;background:#f3f3f0;color:#1b3148;font-size:27px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.round-button.close{margin-left:12px}.round-button.disabled{color:#aaa;pointer-events:none}.top-grid{display:grid;grid-template-columns:44% 56%;gap:10px}.photo-placeholder{height:auto;min-height:0;border-radius:8px;overflow:hidden;background:#d8d2c5;border:1px solid #d3cdc1}.photo-placeholder img{width:100%;height:auto;max-height:none;object-fit:contain;display:block}.photo-caption{margin:6px 0 0;font-size:12px;color:#647084}.facts-column{display:grid;grid-template-columns:repeat(6,1fr);gap:9px;align-content:start}.fact-card{grid-column:span 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.9fr;gap:9px;margin-top:9px}.compact{min-height:98px}.quote{font-style:italic;margin:0 0 3px!important}.compact small{color:#5f6872}.map p{display:flex;justify-content:space-between}.book-footer{display:flex;align-items:center;gap:10px;margin-top:18px}.book-footer button,.footer-link{border:1px solid #d5d1c9;background:#fff;color:#4a4e53;padding:12px 17px;border-radius:6px;font-family:Georgia,"Times New Roman",serif;font-size:14px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.book-footer .primary{background:#a66d0d;color:#fff;border-color:#a66d0d}.book-footer .next{background:var(--navy);color:#fff;border-color:var(--navy)}.book-footer .disabled{color:#aaa;background:#f1f1f1;pointer-events:none}.spacer{flex:1}.resources{display:none;margin-top:10px;padding:12px 14px;border-radius:8px;background:var(--gold-light);font-family:Arial,sans-serif;font-size:13px}.resources.show{display:block}.index-wrap{width:min(1280px,100%);margin:auto}.index-hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0b2948 0%,#123b60 58%,#0c2c4d 100%);color:#fff;border-radius:18px;padding:34px 40px;box-shadow:0 18px 45px rgba(0,0,0,.28);border:1px solid rgba(255,255,255,.12)}.index-hero:before{content:"";position:absolute;right:-90px;top:-120px;width:360px;height:360px;border:1px solid rgba(210,165,74,.35);border-radius:50%;box-shadow:0 0 0 35px rgba(210,165,74,.05),0 0 0 70px rgba(210,165,74,.035)}.index-hero:after{content:"✦";position:absolute;right:95px;bottom:28px;color:#d9aa45;font-size:72px;opacity:.18}.index-kicker{position:relative;display:inline-flex;align-items:center;gap:9px;color:#e5bd68;font-family:Arial,sans-serif;font-size:11px;font-weight:bold;letter-spacing:1.8px;text-transform:uppercase;margin-bottom:12px}.index-kicker:before{content:"";width:28px;height:2px;background:#d5a23a}.index-hero h1{position:relative;margin:0 0 10px;font-size:clamp(42px,6vw,70px);line-height:.96;color:#fff;letter-spacing:-1px}.index-hero .lead{position:relative;max-width:760px;margin:0;color:#e7edf4;font-size:17px;line-height:1.5}.index-stats{position:relative;display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}.index-stat{min-width:170px;padding:11px 15px;border-radius:9px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}.index-stat strong{display:block;color:#fff;font-size:18px}.index-stat span{display:block;margin-top:2px;color:#cbd8e5;font-family:Arial,sans-serif;font-size:10px;text-transform:uppercase;letter-spacing:.8px}.index-section-label{display:flex;align-items:center;gap:12px;margin:24px 2px 10px;color:var(--navy);font-size:16px;font-weight:bold;text-transform:uppercase;letter-spacing:1px}.index-section-label:after{content:"";height:1px;flex:1;background:linear-gradient(90deg,#c59a42,transparent)}.index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}.index-group{position:relative;background:rgba(255,255,255,.97);border:1px solid #d8d1c4;border-radius:12px;padding:17px 16px;box-shadow:0 5px 16px rgba(0,0,0,.10);overflow:hidden}.index-group:before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:linear-gradient(#c6942c,#e0bd72)}.index-group h2{margin:0 0 10px;color:var(--navy);font-size:18px;padding-left:4px}.index-group a{display:flex;align-items:center;text-decoration:none;color:var(--text);padding:6px 7px;border-radius:6px;font-size:14px;transition:.18s ease}.index-group a:hover{background:var(--gold-light);transform:translateX(3px)}.book-no{color:var(--gold);font-weight:bold;display:inline-block;width:30px;font-family:Arial,sans-serif;font-size:11px}.index-divider{height:1px;background:#d7d0c4;margin:24px 0 0}.index-footer{text-align:center;margin:18px 0 4px;color:#596674;font-size:12px}.index-footer strong{color:var(--navy)}
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/* Integración IBVNC: retorno seguro al libro principal de Bibliología */
.back-bibliologia{display:inline-flex;align-items:center;gap:7px;margin:0 0 12px 8px;padding:8px 13px;border:1px solid #c9d0d6;border-radius:7px;background:#fff;color:#17314d;text-decoration:none;font-size:12px;font-weight:bold;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.back-bibliologia:hover{background:#f5eee0;border-color:#9a650d;color:#0c2c4d}
.index-back{margin:0 0 14px}
@media(max-width:560px){.back-bibliologia{margin-left:2px}}