@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap";:root{--accent: #1976d2;--bg: #f7f7f9;--card-bg: #ffffff;--text: #222222;--text-secondary: #555555}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);line-height:1.6;font-family:Inter,Arial,sans-serif;font-size:1.0625rem}.site-header{background:var(--accent);color:#fff;padding:1.25rem 1rem}.site-header-inner{display:grid;grid-template-columns:minmax(0,2.75fr) minmax(0,1fr);align-items:center;gap:1rem;max-width:1100px;margin:0 auto}.header-branding{display:grid;gap:.5rem;text-align:left;max-width:72ch}.header-branding h1{font-size:2.5rem;font-weight:800;margin-bottom:.5rem}.header-branding p{font-size:1.125rem;margin:0;line-height:1.6}.header-actions{display:flex;flex-direction:column;align-items:stretch;justify-content:flex-end;gap:.75rem;justify-self:end;width:min(260px,100%)}.header-actions a{color:#fff;text-decoration:none;border:1px solid #fff;padding:.5rem 1rem;border-radius:6px;transition:background .2s,color .2s;text-align:center}.header-actions a:hover{background:#ffffff;color:var(--accent)}@media (max-width: 920px){.site-header-inner{grid-template-columns:1fr;gap:1.25rem}.header-actions{justify-self:start;width:min(320px,100%)}}.container{max-width:1100px;margin:1rem auto;padding:0 1rem}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.section{margin-top:2rem}.section-title{font-size:1.25rem;font-weight:800;margin:0 0 .75rem}.search-bar{position:sticky;top:0;background:var(--bg);padding:1rem 0;margin-bottom:1.5rem;text-align:center;z-index:10;border-bottom:1px solid #ddd}.search-bar input{width:100%;max-width:450px;padding:.75rem;border:1px solid #ccc;border-radius:8px;font-size:1rem}.books-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}.book-card{background:var(--card-bg);border-radius:12px;box-shadow:0 4px 16px #00000014;overflow:hidden;display:flex;flex-direction:row;align-items:flex-start;gap:1rem;transition:transform .3s,box-shadow .3s}.book-card:hover{transform:translateY(-5px);box-shadow:0 8px 24px #0000001f}.cover-container{width:120px;aspect-ratio:2/3;overflow:hidden;background:var(--bg);flex-shrink:0;margin-top:.5rem}.cover-container img{width:100%;height:100%;object-fit:contain;transition:transform .3s ease}.book-card:hover .cover-container img{transform:scale(1.05)}.book-card .info{padding:1rem;flex:1;display:flex;flex-direction:column}.book-card .info .actions{display:flex;align-items:center;gap:.5rem}.book-card h3{font-size:1.15rem;line-height:1.2;margin-bottom:.5rem;font-weight:600}.book-card p{font-size:.85rem;line-height:1.4;color:var(--text-secondary);flex-grow:1;margin-bottom:.75rem}.book-card a{text-decoration:none;background:var(--accent);color:#fff;padding:.5rem 1rem;border-radius:6px;font-weight:600;font-size:.85rem;display:inline-flex;align-items:center;justify-content:center;transition:filter .2s}.book-card a:hover{filter:brightness(.9)}.header-actions a:focus-visible,.book-card a:focus-visible,.share-btn:focus-visible,.expand-btn:focus-visible,input:focus-visible{outline:2px solid #fff;outline-offset:2px}.book-card a:focus-visible,.share-btn:focus-visible,.expand-btn:focus-visible,input:focus-visible{outline-color:var(--accent)}.footer{margin-top:3rem;padding:1.5rem 1rem;background:var(--accent);color:#fff;text-align:center;font-size:.75rem}@media (max-width: 600px){.site-header-inner{flex-direction:column;align-items:center;text-align:center}.header-actions{justify-content:center;align-items:center}.header-branding{text-align:center}.book-card{flex-direction:column;align-items:center;text-align:center}.book-card .info{padding-top:.5rem}.book-card .info .expand-btn,.book-card .info a{align-self:center}.book-card .description{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}.book-card.expanded .description{display:block;-webkit-line-clamp:unset}}.expand-btn{background:none;border:none;color:var(--accent);padding:0;font:inherit;cursor:pointer;margin-bottom:.75rem}.share-btn{background:var(--accent);border:none;color:#fff;padding:.5rem 1rem;border-radius:6px;font-size:.85rem;font-weight:600;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;line-height:inherit;transition:filter .2s}.share-btn:hover{filter:brightness(.9)}@media (min-width: 601px){.expand-btn{display:none}}.faq{background:#fff;border-radius:12px;box-shadow:0 4px 16px #0000000a;padding:2rem}.faq-items{display:grid;gap:1.5rem}.faq article h3{font-size:1.05rem;font-weight:600;margin-bottom:.5rem}.faq article p{color:var(--text-secondary);font-size:.95rem;line-height:1.6}@media (max-width: 600px){.faq{padding:1.5rem}}.brand-button{border:none;background:transparent;padding:0;text-align:left;color:inherit;cursor:pointer}.brand-button h1{font-size:2.5rem;font-weight:800}.text-link{border:none;background:none;color:var(--accent);font:inherit;cursor:pointer;padding:0;text-decoration:underline}.primary-link,.secondary-link{border:none;border-radius:999px;padding:.65rem 1.25rem;font-size:.9rem;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease}.primary-link{background:var(--accent);color:#fff;box-shadow:0 5px 15px #1976d233}.primary-link:hover{transform:translateY(-1px);box-shadow:0 10px 20px #1976d240}.secondary-link{background:transparent;color:var(--accent);border:1px solid var(--accent)}.book-detail{background:#fff;border-radius:18px;padding:2rem;box-shadow:0 10px 30px #0f172a14}.breadcrumb{display:flex;align-items:center;gap:.35rem;font-size:.85rem;margin-bottom:1.5rem;color:var(--text-secondary)}.breadcrumb button{background:none;border:none;color:var(--accent);font:inherit;cursor:pointer;padding:0}.book-detail-hero{display:grid;gap:2rem;grid-template-columns:minmax(0,320px) minmax(0,1fr);align-items:start}.book-detail-cover{background:var(--bg);padding:1.5rem;border-radius:14px;box-shadow:inset 0 0 0 1px #0000000a}.book-detail-cover img{width:100%;height:auto;display:block}.book-detail-info .kicker{text-transform:uppercase;font-size:.85rem;letter-spacing:.08em;color:var(--accent);margin-bottom:.5rem}.book-detail-info h2{font-size:2rem;margin-bottom:1rem}.book-detail-info .lead{font-size:1.05rem;color:var(--text-secondary);margin-bottom:1.5rem}.cta-group{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:1.5rem}.book-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;color:var(--text-secondary)}.book-meta dt{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:.25rem}.book-meta dd{margin:0;font-size:1rem;color:var(--text)}.book-about{margin-top:2.5rem}.book-about h3{font-size:1.5rem;margin-bottom:1rem}.book-about-content h2,.book-about-content h3,.book-about-content h4{margin-top:1.5rem;margin-bottom:.75rem}.book-about-content p{margin-bottom:1rem;color:var(--text-secondary)}.book-about-content code{background:rgba(15,23,42,.05);padding:.15rem .4rem;border-radius:4px;font-size:.9em}.related-books{margin-top:2.5rem}.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.related-card{background:var(--bg);padding:1.25rem;border-radius:12px;box-shadow:inset 0 0 0 1px #0000000a;display:flex;flex-direction:column;gap:.5rem}.related-card h4{margin:0;font-size:1rem}.related-card p{margin:0;color:var(--text-secondary);font-size:.9rem;line-height:1.4}.related-actions{display:flex;margin-top:auto;gap:.75rem;flex-wrap:wrap;font-size:.85rem}.not-found{text-align:center;padding:4rem 1rem}.not-found h2{font-size:2rem;margin-bottom:1rem}.not-found p{color:var(--text-secondary);margin-bottom:1.5rem}@media (max-width: 920px){.book-detail-hero{grid-template-columns:1fr}}