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no-preference){html:has(.guide){scroll-behavior:smooth}}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:50;display:grid;place-items:center;padding:16px;background:var(--backdrop)}.modal{width:100%;max-width:480px;max-height:90vh;display:flex;flex-direction:column;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-lg)}.modal-title{margin:0;padding:18px 20px 0;font-size:1.1rem}.modal-body{padding:14px 20px;overflow-y:auto}.modal-footer{display:flex;justify-content:flex-end;gap:8px;padding:12px 20px 18px}.radio-list{display:flex;flex-direction:column;gap:4px}.radio-list label{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:8px;cursor:pointer}.radio-list label:hover{background:var(--surface-2)}.toasts{position:fixed;inset-block-start:16px;inset-inline:0;z-index:60;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}.toast{max-width:min(92vw,520px);padding:10px 18px;border-radius:12px;background:var(--text);color:var(--bg);box-shadow:var(--shadow)}.toast-error{background:var(--danger);color:var(--on-danger)}.spinner{width:28px;height:28px;border:3px solid var(--border);border-block-start-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion: reduce){.spinner{animation-duration:2.4s}}.book-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:24px;align-items:start;margin-block-start:12px}.book-aside{position:sticky;inset-block-start:24px;display:flex;flex-direction:column;gap:16px}.book-cover{display:block;width:100%;aspect-ratio:5 / 7;border-radius:var(--radius);object-fit:cover;background:var(--surface-2);box-shadow:var(--shadow-lg)}.book-cover-empty{display:grid;place-items:center;color:var(--text-muted);box-shadow:none;border:1px dashed var(--border)}.book-cover-empty svg{width:56px;height:56px}.index-label{display:flex;flex-direction:column;align-items:center;gap:2px;padding:14px 12px;border:2px solid var(--primary);border-radius:12px;background:var(--surface);text-align:center}.index-label-caption{color:var(--text-muted);font-size:.8rem}.index-label-value{color:var(--primary);font-size:2rem;font-weight:700;line-height:1.2}.index-label-shelf{color:var(--text-muted);font-size:.85rem}.index-label-shelf:hover{color:var(--primary)}.book-main{display:flex;flex-direction:column;gap:16px;min-width:0}.book-header{display:flex;flex-direction:column;gap:14px}.book-title{margin:0;font-size:1.85rem;font-weight:700;line-height:1.35;overflow-wrap:anywhere}.book-author{margin:-6px 0 0;font-size:1.1rem;font-weight:500}.muted-label{color:var(--text-muted);font-weight:400}.contributors{display:flex;flex-wrap:wrap;gap:4px 20px;margin:-6px 0 0;padding:0;list-style:none;font-size:.95rem}.status-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:.85rem;font-weight:500}.status-chip svg{width:16px;height:16px}.tone-success{background:var(--success-bg);color:var(--success)}.tone-warning{background:var(--warning-bg);color:var(--warning)}.tone-info{background:var(--info-bg);color:var(--info)}.tone-primary{background:var(--primary-bg);color:var(--primary)}.tone-neutral{background:var(--surface-2);color:var(--text-muted)}.book-facts{display:flex;flex-wrap:wrap;gap:10px;margin:0}.fact{display:flex;flex-direction:column;min-width:92px;padding:8px 14px;border-radius:12px;background:var(--surface-2)}.fact dd{order:-1;margin:0;font-size:1.35rem;font-weight:700;line-height:1.3}.fact dt{color:var(--text-muted);font-size:.8rem}.book-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-block-start:14px;border-block-start:1px solid var(--border)}.book-actions .spacer{flex:1}.info-rows{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:32px;margin:0}.info-rows>div{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-block-end:1px solid var(--border)}.info-rows dt{color:var(--text-muted)}.info-rows dd{margin:0;font-weight:500;text-align:end;overflow-wrap:anywhere}.book-notes{margin:0;padding:4px 16px;border-inline-start:4px solid var(--accent);color:var(--text);white-space:pre-wrap;line-height:1.8}.index-images{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,160px));gap:12px}.index-image{padding:0;border:1px solid var(--border);border-radius:12px;background:var(--surface-2);overflow:hidden;cursor:zoom-in}.index-image img{display:block;width:100%;aspect-ratio:3 / 4;object-fit:cover}.index-image:hover{border-color:var(--accent)}.index-image:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.viewer{position:fixed;top:0;right:0;bottom:0;left:0;z-index:55;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:24px 16px;background:var(--backdrop)}.viewer-image{max-width:100%;max-height:calc(100vh - 120px);border-radius:10px;object-fit:contain;background:var(--surface);box-shadow:var(--shadow-lg)}.viewer-bar{display:flex;align-items:center;gap:10px}.viewer-count{min-width:56px;padding:6px 10px;border-radius:999px;background:var(--surface);text-align:center}@media (max-width: 899px){.book-layout{grid-template-columns:minmax(0,1fr)}.book-aside{position:static;flex-direction:row;align-items:stretch}.book-aside .book-cover{width:120px;flex:none}.book-aside .index-label{flex:1;justify-content:center}.book-title{font-size:1.45rem}.info-rows{grid-template-columns:minmax(0,1fr)}.book-actions .btn{flex:1 1 auto;white-space:nowrap}.book-actions .spacer{display:none}}