.bd-wrap{max-width:900px;margin:0 auto;padding:32px 24px 64px}.bd-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--n-muted);text-decoration:none;margin-bottom:28px;transition:color .15s}.bd-back:hover{color:var(--n-text)}.bd-layout{display:grid;grid-template-columns:240px 1fr;gap:40px}@media(max-width:640px){.bd-layout{grid-template-columns:1fr}}.bd-cover{width:100%;aspect-ratio:2/3;border-radius:12px;overflow:hidden;box-shadow:0 12px 40px #00000029;background:var(--n-bg-soft);display:flex;align-items:center;justify-content:center;position:sticky;top:80px}.bd-cover img{width:100%;height:100%;-o-object-fit:cover;object-fit:cover}.bd-cover-placeholder{font-size:56px;text-align:center}.bd-info{display:flex;flex-direction:column;gap:20px}.bd-badge{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:20px;width:-moz-fit-content;width:fit-content}.bd-badge-available{background:#d1fae5;color:#065f46}.bd-badge-unavailable{background:#fee2e2;color:#991b1b}.bd-badge-borrowed{background:#dbeafe;color:#1e40af}.bd-title{font-size:clamp(22px,3vw,32px);font-weight:800;color:var(--n-text);line-height:1.25;margin-bottom:6px}.bd-author{font-size:16px;color:var(--n-muted);margin-top:0;line-height:1.5}.bd-meta{display:flex;flex-wrap:wrap;gap:16px}.bd-meta-item{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--n-subtle)}.bd-meta-item svg{color:var(--n-muted)}.bd-desc{font-size:14px;line-height:1.7;color:var(--n-subtle);border-top:1px solid var(--n-border);padding-top:18px}.bd-actions{display:flex;gap:10px;flex-wrap:wrap}.bd-btn-primary{display:inline-flex;align-items:center;gap:7px;padding:12px 22px;background:#dbaf6c;color:#fff;border:none;border-radius:8px;font-size:14px;font-family:inherit;font-weight:600;cursor:pointer;text-decoration:none;transition:opacity .15s;box-shadow:0 4px 16px #dbaf6c4d}.bd-btn-primary:hover{opacity:.85}.bd-btn-secondary{display:inline-flex;align-items:center;gap:7px;padding:12px 22px;background:transparent;color:var(--n-text);border:1.5px solid var(--n-border);border-radius:8px;font-size:14px;font-family:inherit;font-weight:600;cursor:pointer;text-decoration:none;transition:background .15s}.bd-btn-secondary:hover{background:var(--n-hover)}.bd-btn-disabled{display:inline-flex;align-items:center;gap:7px;padding:12px 22px;background:var(--n-bg-soft);color:var(--n-muted);border:1.5px solid var(--n-border);border-radius:8px;font-size:14px;font-family:inherit;font-weight:600;cursor:not-allowed}.bd-active-loan-box{background:#eff6ff;border:1px solid #bfdbfe;border-radius:10px;padding:16px 20px;display:flex;align-items:center;gap:12px}.bd-active-loan-box .icon{font-size:22px;flex-shrink:0}.bd-active-loan-box p{font-size:13px;color:#1e40af;line-height:1.5;margin:0}.bd-active-loan-box strong{display:block;font-size:14px;margin-bottom:2px}