/* Public book detail page */

/* Bibliographic metadata has its own selectors to avoid legacy layout rules. */
.book-metadata{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin:22px 0;padding:15px 0;border-block:1px solid #e7ece7}
.book-metadata>.book-metadata-item{display:flex;align-items:baseline;justify-content:flex-start;flex:0 1 auto;gap:5px;min-width:0;max-width:100%;margin:0;padding:0}
.book-metadata-item>dt{flex:0 0 auto;min-width:0;margin:0;padding:0;color:#75817b;font:400 11px/1.6 var(--sans);white-space:nowrap}
.book-metadata-item>dd{flex:0 1 auto;min-width:0;max-width:100%;margin:0;padding:0;color:#30443a;font:600 12px/1.6 var(--sans);overflow-wrap:anywhere}
.book-metadata-item>.book-metadata-formats{display:flex;flex-wrap:wrap;align-items:center;gap:4px}
.book-metadata-formats>span{display:inline-flex;align-items:center;padding:1px 6px;border:1px solid #dce8e0;border-radius:4px;background:#edf4ef;color:#246c5d;font-size:10px;font-weight:650;line-height:1.5}
.book-metadata-isbn>dd{font-variant-numeric:tabular-nums;white-space:nowrap;overflow-wrap:normal}
@media(max-width:700px){.book-metadata{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 14px;margin:19px 0;padding:15px 0}.book-metadata-item>dt{font-size:10px}.book-metadata-item>dd{font-size:11px}.book-metadata-isbn{grid-column:1/-1}}
.book-detail{padding:34px 0 78px;background:linear-gradient(180deg,#f2f4ef 0,#f7f7f3 235px,var(--paper) 520px)}
.book-breadcrumbs{margin:0 0 25px;color:#7b8983;font-size:11px;gap:11px;overflow-wrap:anywhere}
.book-breadcrumbs span[aria-current=page]{color:#55645f;max-width:min(44vw,400px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.book-detail-grid{display:grid;grid-template-columns:minmax(260px,340px) minmax(0,1fr);gap:clamp(38px,6vw,82px);align-items:start}
.detail-cover-wrap{position:sticky;top:28px;min-width:0}
.detail-cover-frame{padding:16px;border:1px solid #e8eae4;border-radius:12px;background:rgba(255,255,255,.76);box-shadow:0 15px 48px rgba(25,39,42,.08)}
.detail-cover{width:100%;max-width:none;aspect-ratio:2/3;border-radius:5px;box-shadow:0 12px 28px rgba(23,36,32,.17)}
.detail-cover img{object-fit:cover}
.detail-cover .cover-monogram{font-size:86px;line-height:1;opacity:.38}
.detail-cover .cover-title{font-size:clamp(22px,2vw,30px);line-height:1.16}
.format-badges{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin:15px 0 0}
.format-label{margin-right:4px;color:#76827d;font-size:10px}
.format-badges .format-badge{padding:5px 10px;border-color:#d7e4dd;border-radius:99px;background:#edf4ef;color:#246c5d;font-size:10px;font-weight:750;letter-spacing:.06em}
.book-detail-copy{max-width:810px;min-width:0;padding:30px clamp(24px,4vw,52px) 34px;border:1px solid #e9eae5;border-radius:12px;background:rgba(255,255,255,.88);box-shadow:0 14px 46px rgba(25,39,42,.045)}
.book-detail-heading{padding-bottom:25px;border-bottom:1px solid #edf0eb}
.book-edition{margin:0 0 7px;font-size:10px}
.book-detail-copy h1{max-width:17ch;margin:15px 0 9px;font-size:clamp(38px,4.1vw,56px);line-height:1.05;overflow-wrap:anywhere}
.book-subtitle{font-size:19px;line-height:1.5}
.byline{display:flex;align-items:center;gap:11px;margin:21px 0 0;color:#66736e;font-size:12px;line-height:1.65}
.byline-avatar{display:grid;place-items:center;flex:0 0 36px;width:36px;height:36px;border:1px solid #dbe8e1;border-radius:50%;background:#edf4ef;color:#247468;font-size:14px;font-weight:750}
.byline>span:last-child{min-width:0}
.byline a{color:#216e65}
.byline-publisher{display:block;color:#89938e;font-size:11px}
.book-overview{padding:25px 0 2px}
.book-overview h2{margin:0 0 10px;color:#263532;font:650 19px/1.3 var(--serif);letter-spacing:-.02em}
.book-description{color:#56635e;font-size:13px;line-height:1.85;overflow-wrap:anywhere}
.book-description-content{min-width:0}
.book-description summary{display:inline-flex;align-items:center;gap:8px;margin-top:9px;padding:6px 0;border:0;background:transparent;color:#1d7973;cursor:pointer;font-size:11px;font-weight:750;list-style:none}
.book-description summary::-webkit-details-marker{display:none}
.book-description summary:after{content:"↓";font-size:14px;transition:transform .16s}
.book-description[open] summary:after{content:"↑"}
.book-description summary:focus-visible{outline:2px solid #1d7973;outline-offset:3px;border-radius:3px}
.read-less-label{display:none}
.book-description[open] .read-more-label{display:none}
.book-description[open] .read-less-label{display:inline}
.book-description p{margin:0 0 13px}
.book-description p:last-child{margin-bottom:0}
.book-description h2,.book-description h3{color:#263532;line-height:1.3;margin:23px 0 9px}
.book-description ul,.book-description ol{margin:0 0 14px}

.detail-downloads{margin-top:22px;padding:21px;border:1px solid #dce8e1;border-radius:9px;background:linear-gradient(130deg,#f3f8f4,#fbfcfa 82%)}
.download-heading{display:flex;align-items:center;gap:12px;margin-bottom:15px}
.download-heading-icon{display:grid;place-items:center;width:37px;height:37px;border-radius:10px;background:#dfeee5;color:#216c5e;font-size:22px;font-weight:700}
.download-heading h2{margin:0;color:#253731;font:650 20px/1.2 var(--serif);letter-spacing:-.02em}
.download-heading p{margin:4px 0 0;color:#74817a;font-size:11px}
.download-options{display:grid;gap:8px}
.download-option{display:flex;align-items:center;gap:12px;min-width:0;padding:11px 13px;border:1px solid #e0e8e2;border-radius:7px;background:#fff;color:#2d3a35;transition:border-color .16s,box-shadow .16s,transform .16s}
.download-option:hover{transform:translateY(-1px);border-color:#7daf9b;box-shadow:0 5px 15px rgba(29,85,67,.08)}
.download-option:focus-visible{outline:3px solid rgba(29,121,115,.28);outline-offset:2px}
.download-format-icon{display:grid;place-items:center;flex:0 0 35px;width:35px;height:39px;border-radius:5px;background:#edf4ef;color:#26705f;font-size:13px;font-weight:800;letter-spacing:.03em}
.download-option-copy{display:grid;gap:3px;min-width:0}
.download-option-copy strong{font-size:12px}
.download-option-copy small{color:#7b8781;font-size:10px}
.download-option-action{display:inline-flex;align-items:center;gap:8px;margin-left:auto;padding:8px 11px;border-radius:5px;background:#1d4946;color:white;white-space:nowrap;font-size:10px;font-weight:700}
.download-option:hover .download-option-action{background:#1d7973}
.download-message{margin:0;padding:12px;border:1px dashed #d0ddd5;border-radius:6px;color:#6a7771;font-size:12px}
.book-detail-footer{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:19px}
.detail-categories{display:flex;align-items:center;gap:7px;flex-wrap:wrap;margin:0}
.detail-category-label{margin-right:4px;color:#86918c;font-size:10px}
.detail-categories a{display:inline-flex;align-items:center;gap:8px;padding:6px 9px;border-color:#e5e9e4;border-radius:99px;background:#fff;color:#53635c;font-size:9px;letter-spacing:0;text-transform:none}
.detail-categories a:hover{border-color:#bdd6c9;color:#216c5e}
.detail-categories a span{color:#729485}
.book-detail-footer .buy-link{margin:0;min-height:36px;font-size:10px}
.related-section{padding-top:54px}
.related-section .section-heading{padding-bottom:18px;border-bottom:1px solid #e8ebe5}
.related-section .book-card{overflow:hidden;border:1px solid #e9ece7;border-radius:9px;background:#fff;box-shadow:0 7px 24px rgba(25,39,42,.045);transition:transform .18s,box-shadow .18s}
.related-section .book-card:hover{transform:translateY(-3px);box-shadow:0 13px 30px rgba(25,39,42,.1)}
.related-section .cover-link{padding:10px 10px 0}
.related-section .book-cover{border-radius:5px;box-shadow:none}
.related-section .cover-open{border-radius:50%}
.related-section .book-card-info{padding:12px 13px 14px}
.related-section .book-title{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-height:1.35}
.related-section .book-card-info>p{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.related-section .book-card-meta{padding-top:8px;border-top:1px solid #eff1ed}
@media(max-width:900px){.book-detail-grid{grid-template-columns:minmax(220px,285px) minmax(0,1fr);gap:30px}.book-detail-copy{padding:26px 25px 29px}}
@media(max-width:700px){.book-detail{padding:22px 0 50px;background:linear-gradient(180deg,#f2f4ef 0,#f8f8f5 245px,var(--paper) 480px)}.book-breadcrumbs{margin-bottom:18px}.book-detail-grid{grid-template-columns:minmax(0,1fr);gap:23px}.detail-cover-wrap{position:static;display:flex;flex-direction:column;align-items:center}.detail-cover-frame{width:min(56vw,224px);padding:9px;border-radius:9px}.detail-cover{border-radius:4px}.detail-cover .cover-monogram{font-size:66px}.detail-cover .cover-title{font-size:20px}.format-badges{margin-top:11px}.book-detail-copy{width:100%;max-width:none;padding:22px 20px 23px;border-radius:10px}.book-detail-heading{padding-bottom:19px}.book-detail-copy h1{max-width:none;margin-top:12px;font-size:clamp(34px,9vw,43px);line-height:1.06}.book-subtitle{font-size:17px;margin-bottom:12px}.byline{margin-top:16px}.book-overview{padding-top:20px}.book-overview h2{font-size:18px}.book-description{font-size:13px;line-height:1.8}.detail-downloads{margin-top:18px;padding:16px 13px}.download-heading{gap:10px;margin-bottom:12px}.download-heading h2{font-size:18px}.download-option{gap:9px;padding:10px 9px}.download-option-action{gap:5px;padding:8px;font-size:9px}.book-detail-footer{align-items:flex-start;flex-direction:column}.detail-categories{gap:6px}.detail-category-label{width:100%;margin:0 0 2px}.book-detail-footer .buy-link{align-self:stretch}.related-section{padding-top:42px}.related-section .book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.related-section .cover-link{padding:8px 8px 0}.related-section .book-card-info{padding:10px 10px 12px}}
@media(max-width:380px){.book-detail-copy{padding:19px 15px}.book-detail-copy h1{font-size:34px}.download-option{gap:7px;padding:9px 7px}.download-format-icon{flex-basis:31px;width:31px;height:35px}.download-option-copy strong{font-size:11px}.download-option-copy small{font-size:9px}.download-option-action{padding:7px 6px;font-size:8px}}
@media(prefers-reduced-motion:reduce){.download-option{transition:none}.download-option:hover{transform:none}}

/* Refined book-title hierarchy on wide and narrow screens. */
.book-detail-copy h1{font-size:clamp(36px,3.6vw,49px);font-weight:500;line-height:1.08;letter-spacing:-.035em}
@media(max-width:700px){.book-detail-copy h1{font-size:clamp(32px,8vw,39px);font-weight:500;line-height:1.1;letter-spacing:-.03em}}

/* Show a three-line text preview before the native disclosure control. */
.book-description summary{display:block;width:100%;margin:0;padding:0;line-height:1.85}
.book-description-preview{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:3;margin:0 0 7px;color:#56635e;font-size:13px;font-weight:400;line-height:1.85}
.book-description[open] .book-description-preview{display:none}
.book-description .book-description-content{padding-top:4px}