.shelf-topics{flex-wrap:wrap;gap:9px;margin-bottom:clamp(28px,4vw,44px);display:flex}.shelf-topics .topic{font-family:var(--sans);letter-spacing:.02em;color:var(--muted);background:var(--panel);border:1px solid var(--hairline);border-radius:100px;padding:.5em 1.05em;font-size:.82rem;font-weight:600;transition:all .12s}.shelf-topics .topic:hover{border-color:var(--gold);color:var(--gold)}.shelf-topics .topic[data-active=true]{background:var(--gold);border-color:var(--gold);color:#fff}.shelf{grid-template-columns:1fr 1fr;gap:22px;display:grid}.shelf-book{border:1px solid var(--hairline);border-radius:var(--r-lg);background:#fff;gap:20px;padding:22px;transition:border-color .15s;display:flex}.shelf-book:hover{border-color:var(--gold)}.shelf-book .cover{flex:none;align-self:flex-start}.shelf-book .cover img{object-fit:cover;border:1px solid var(--hairline);border-radius:4px;width:104px;height:156px;display:block;box-shadow:0 10px 18px -12px #1d1b1973}.shelf-book .meta{flex-direction:column;align-items:flex-start;min-width:0;display:flex}.shelf-book h2{margin:0}.shelf-book .authors{font-family:var(--sans);letter-spacing:.08em;text-transform:uppercase;color:var(--gold-deep);margin:8px 0 0;font-size:.75rem;font-weight:650}.shelf-book .desc{font-family:var(--read);color:var(--muted);-webkit-line-clamp:4;-webkit-box-orient:vertical;margin:10px 0 0;font-size:.95rem;line-height:1.55;display:-webkit-box;overflow:hidden}.shelf-book .buy{font-family:var(--sans);color:var(--gold);margin-top:auto;padding-top:14px;font-size:.86rem;font-weight:600}.shelf-book .buy:hover{color:var(--gold-deep)}.shelf-disclosure{border-top:1px solid var(--hairline);color:var(--faint);max-width:64ch;margin-top:clamp(32px,5vw,52px);padding-top:18px;font-size:.82rem;line-height:1.5}@media (max-width:900px){.shelf{grid-template-columns:1fr}}@media (max-width:480px){.shelf-book{flex-direction:column}.shelf-book .cover img{width:88px;height:132px}}