.catalogue-shell{width:calc(100% - 2rem);max-width:76rem;padding-block:var(--space-3xl) var(--space-4xl);margin-inline:auto}.catalogue-head{gap:var(--space-lg);border-block-end:var(--rule-thin) solid var(--color-rule);padding-block-end:var(--space-2xl);display:grid}.catalogue-head h1{max-width:15ch;font-size:var(--text-section);margin-block-end:0}.catalogue-head p{max-width:65ch;color:var(--color-ink-soft);margin-block-end:0}.catalogue-count{color:var(--color-accent);font-size:var(--text-sm);font-variant-numeric:tabular-nums;font-weight:700}.book-grid{gap:var(--space-2xl) var(--space-lg);grid-template-columns:minmax(0,1fr);margin-block-start:var(--space-2xl);display:grid}.empty-state{max-width:65ch;padding-block:var(--space-2xl);border-block:var(--rule-thin) solid var(--color-rule);margin-block-start:var(--space-2xl)}.empty-state h2{margin-block-end:var(--space-sm);font-size:1.5rem}.empty-state p{color:var(--color-ink-soft);margin-block-end:var(--space-lg)}.text-link{min-height:2.75rem;color:var(--color-accent);text-underline-offset:var(--space-2xs);white-space:nowrap;align-items:center;font-weight:700;display:inline-flex}.category-index{margin:var(--space-2xl) 0 0;border-block-start:var(--rule-thin) solid var(--color-rule);padding:0;list-style:none}.category-index a{justify-content:space-between;align-items:center;gap:var(--space-md);border-block-end:var(--rule-thin) solid var(--color-rule);min-height:4rem;text-decoration:none;display:flex}.category-index strong{font-family:var(--font-display);font-size:1.25rem;font-weight:500}.category-index span{color:var(--color-ink-soft);font-size:var(--text-sm);white-space:nowrap}.breadcrumbs{align-items:center;gap:var(--space-xs);color:var(--color-ink-soft);font-size:var(--text-sm);flex-wrap:wrap;margin-block-end:var(--space-xl);display:flex}.breadcrumbs a{white-space:nowrap;align-items:center;min-height:2.75rem;display:inline-flex}.book-detail{gap:var(--space-2xl);display:grid}.book-detail__main h1{max-width:16ch;font-size:var(--text-section);margin-block-end:var(--space-md)}.book-detail__author{color:var(--color-ink-soft)}.book-detail__description{max-width:65ch;margin-block:var(--space-xl);font-size:var(--text-lead)}.book-detail__status{padding:var(--space-xs) var(--space-sm);border:var(--rule-thin) solid var(--color-rule);background:var(--color-paper-deep);color:var(--color-ink);font-size:var(--text-sm);font-weight:700;display:inline-block}.book-facts{border-block-start:var(--rule-thin) solid var(--color-rule);margin-block-start:var(--space-2xl)}.book-facts div{gap:var(--space-md);padding-block:var(--space-md);border-block-end:var(--rule-thin) solid var(--color-rule);grid-template-columns:minmax(0,.45fr) minmax(0,1fr);display:grid}.book-facts dt{color:var(--color-ink-soft)}.book-facts dd{margin:0}.book-facts a{color:var(--color-accent)}@media (width>=36rem){.book-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=52rem){.catalogue-shell{width:calc(100% - 3rem)}.catalogue-head{grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);align-items:end}.book-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.book-detail{grid-template-columns:minmax(15rem,.7fr) minmax(0,1.3fr);align-items:start}}@media (hover:hover) and (pointer:fine){.category-index a:hover,.text-link:hover,.breadcrumbs a:hover{color:var(--color-accent)}}.catalogue-shell{padding-block-start:var(--space-2xl)}.catalogue-head{padding:var(--space-xl);border:var(--rule-thin) solid var(--color-rule);border-radius:var(--radius-md);background:var(--color-paper-raised)}.catalogue-head h1{font-size:var(--text-section)}.catalogue-count{width:fit-content;padding:var(--space-2xs) var(--space-sm);background:var(--color-paper-deep);border-radius:99rem;margin-block-end:var(--space-sm)}.book-grid{gap:var(--space-lg)}.book-grid>.book-card{padding:var(--space-md);border:var(--rule-thin) solid var(--color-rule);border-radius:var(--radius-md);background:var(--color-paper-raised)}.book-grid>.book-card .book-cover{min-height:12rem}.category-index{gap:var(--space-sm);border:0;grid-template-columns:minmax(0,1fr);display:grid}.category-index a{min-height:5rem;padding-inline:var(--space-md);border:var(--rule-thin) solid var(--color-rule);border-radius:var(--radius-sm);background:var(--color-paper-raised)}.book-detail{padding:var(--space-xl);border:var(--rule-thin) solid var(--color-rule);border-radius:var(--radius-md);background:var(--color-paper-raised)}.book-detail>.book-cover{min-height:24rem}.book-detail__main{min-width:0}.book-detail__status{margin:0 var(--space-xs) var(--space-sm) 0;border-radius:99rem}.book-detail__status:has(a){border-color:var(--color-accent);background:var(--color-accent);color:var(--color-accent-ink)}.book-detail__status a{color:inherit;text-decoration:none}.book-facts{gap:0 var(--space-md);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.book-facts div{display:block}.book-facts dt{font-size:var(--text-xs);margin-block-end:var(--space-2xs)}@media (width>=52rem){.catalogue-head{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}.book-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.category-index{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width>=72rem){.book-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.book-detail{grid-template-columns:minmax(17rem,.75fr) minmax(0,1.25fr)}}@media (hover:hover) and (pointer:fine){.book-grid>.book-card,.category-index a,.book-detail__status:has(a){transition:border-color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out)}.book-grid>.book-card:hover,.category-index a:hover{border-color:var(--color-accent);background:var(--color-paper-deep)}.book-detail__status:has(a):hover{background:var(--color-ink);border-color:var(--color-ink)}}.book-detail--enhanced{gap:var(--space-xl)}.book-detail__cover-area{min-width:0}.book-detail--enhanced .book-cover{min-height:0;max-height:28rem}.book-detail__availability{margin:var(--space-sm) 0 0;padding:var(--space-xs) var(--space-sm);border-inline-start:.25rem solid var(--color-success);background:var(--color-paper-deep);color:var(--color-ink);font-size:var(--text-sm);font-weight:750}.book-detail__eyebrow{margin:0 0 var(--space-xs);color:var(--color-accent);font-size:var(--text-sm);letter-spacing:.04em;text-transform:uppercase;font-weight:800}.book-detail--enhanced h1{max-width:18ch;margin-block-end:var(--space-sm)}.book-detail__chips{gap:var(--space-xs);margin-block:var(--space-md);flex-wrap:wrap;display:flex}.book-detail__chips>*{min-height:1.9rem;padding-inline:var(--space-sm);background:var(--color-paper-deep);color:var(--color-ink-soft);font-size:var(--text-xs);border-radius:99rem;align-items:center;font-weight:700;text-decoration:none;display:inline-flex}.book-detail__chips a{color:var(--color-accent)}.book-detail--enhanced .book-detail__description{margin-block:var(--space-lg)}.book-detail__actions{gap:var(--space-sm);margin-block:var(--space-xl);flex-wrap:wrap;display:flex}.book-detail__read,.book-detail__secondary{min-height:3rem;padding-inline:var(--space-lg);border:var(--rule-thin) solid var(--color-rule);border-radius:var(--radius-sm);font-size:var(--text-sm);white-space:nowrap;justify-content:center;align-items:center;font-weight:800;text-decoration:none;display:inline-flex}.book-detail__read{border-color:var(--color-accent);background:var(--color-accent);color:var(--color-accent-ink)}.book-detail__secondary{background:var(--color-paper-raised);color:var(--color-ink)}.book-detail__metadata{border-block-start:var(--rule-thin) solid var(--color-rule);margin-block-start:var(--space-2xl);padding-block-start:var(--space-lg)}.book-detail__metadata h2{font-family:var(--font-body);font-size:var(--text-body);margin:0;font-weight:800;line-height:1.3}.book-detail__metadata .book-facts{margin-block-start:var(--space-md)}.book-detail__metadata .book-facts dd{color:var(--color-ink);font-weight:650}.book-detail__read:focus-visible,.book-detail__secondary:focus-visible,.book-detail__chips a:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px}@media (width>=52rem){.book-detail--enhanced{padding:clamp(var(--space-xl), 4vw, var(--space-2xl));grid-template-columns:minmax(14rem,.7fr) minmax(0,1.3fr)}.book-detail--enhanced .book-cover{max-height:25rem}}@media (width>=72rem){.book-detail--enhanced{grid-template-columns:minmax(16rem,.72fr) minmax(0,1.28fr)}}@media (width<=35.99rem){.book-detail{padding:var(--space-md)}.book-detail__actions{grid-template-columns:1fr;display:grid}.book-detail__read,.book-detail__secondary{width:100%}.book-detail--enhanced .book-cover{max-height:22rem}.book-facts{grid-template-columns:1fr}}@media (hover:hover) and (pointer:fine){.book-detail__read,.book-detail__secondary{transition:border-color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out)}.book-detail__read:hover{border-color:var(--color-ink);background:var(--color-ink)}.book-detail__secondary:hover{border-color:var(--color-accent);color:var(--color-accent)}}