/* Uses the established Classic and Rainbow design tokens. */
#book-studies{max-width:1280px;margin:0 auto}#book-studies [hidden]{display:none!important}#book-studies h2,#book-studies h3{font-weight:normal}#book-studies p{line-height:1.75}#book-studies h2{font-size:clamp(25px,3vw,34px);line-height:1.25;margin:8px 0 16px}#book-studies h3{font-size:21px;line-height:1.4;margin-top:28px}#book-studies .bs-intro{font-size:19px;max-width:760px;margin:0 0 24px}#book-studies input[type=search]{width:100%;padding:14px 16px;border:1px solid var(--line);background:var(--paper);border-radius:8px;font-size:16px}#book-studies button:focus-visible,#book-studies select:focus-visible{outline:2px solid var(--wine);outline-offset:3px}.bs-books{display:grid;gap:18px;margin:24px 0}.bs-book{display:grid;grid-template-columns:90px 1fr;gap:30px;padding:30px!important}.bs-book-number{font-size:55px;font-weight:normal;color:var(--wine);border-right:1px solid var(--line);padding:5px 20px 0 0}.bs-book p{margin:8px 0}.bs-book .row{margin-top:22px}.bs-progress{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--muted);margin-top:18px}.bs-progress progress{width:170px;height:5px;accent-color:var(--wine)}.bs-top{display:flex;align-items:center;gap:15px;flex-wrap:wrap;margin-bottom:24px}.bs-top .text-btn{margin-left:auto}.bs-book-heading{max-width:760px;margin:30px 0}.bs-contents{list-style:none;counter-reset:chapter;padding:0;margin-top:25px;border-top:1px solid var(--line)}.bs-contents li{counter-increment:chapter;border-bottom:1px solid var(--line)}.bs-contents button{background:transparent;border:0;display:flex;text-align:left;width:100%;gap:20px;padding:22px 8px;align-items:center;font-size:20px}.bs-contents button:before{content:counter(chapter,decimal-leading-zero);font-size:14px;color:var(--muted);min-width:25px}.bs-contents small{display:block;font-size:14px;line-height:1.55;color:var(--muted);margin-top:6px}.bs-row-meta{margin-left:auto;min-width:115px;text-align:right;font-size:13px}.bs-layout{display:grid;grid-template-columns:230px minmax(0,1fr);gap:28px;align-items:start}.bs-outline{border:1px solid var(--line);border-radius:8px;padding:16px;max-height:78vh;overflow:auto;position:sticky;top:20px;background:var(--paper)}.bs-outline summary{font-size:14px;line-height:1.6;cursor:pointer}.bs-outline nav{display:flex;flex-direction:column;margin-top:14px}.bs-outline button{background:transparent;border:0;border-bottom:1px solid var(--line);text-align:left;padding:12px 9px;font-size:15px;line-height:1.4}.bs-outline button small{display:block;font-size:11px;color:var(--muted);margin-top:4px}.bs-outline button[aria-current=page]{background:var(--paper2);border-left:3px solid var(--wine)}.bs-lesson{padding:clamp(20px,4vw,48px)!important;min-width:0}.bs-lesson p,.bs-lesson li{font-size:17px}.bs-lesson>.muted{font-size:12px}.bs-lesson .bs-lead{font-size:21px;line-height:1.6;margin:26px 0}.bs-tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);flex-wrap:wrap;margin:22px 0}.bs-tabs button{border:0;background:transparent;padding:13px 10px;font-size:15px;border-bottom:2px solid transparent}.bs-tabs button[aria-current=page]{border-bottom-color:var(--wine);color:var(--wine)}.bs-table-wrap{overflow-x:auto;margin:28px 0}.bs-table-wrap table{border-collapse:collapse;width:100%;font-size:15px;line-height:1.6}.bs-table-wrap th,.bs-table-wrap td{padding:12px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);font-weight:normal}.bs-table-wrap th{background:var(--paper2)}.bs-table-wrap caption{text-align:left;font-size:16px;padding-bottom:12px}.bs-example{border-left:2px solid var(--gold);padding:2px 0 2px 24px;margin:35px 0}.bs-example .muted{font-size:12px}.bs-editorial{padding:16px;background:var(--paper2);border-radius:6px;margin:25px 0}.bs-editorial p{font-size:15px}.bs-lesson details summary,.bs-method summary{cursor:pointer;font-size:15px}.bs-method{padding:20px 0}.bs-method p{max-width:800px}.bs-links{display:flex;flex-direction:column;gap:8px;margin:15px 0}.bs-links button{text-align:left;white-space:normal}.bs-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}.bs-statusbar{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);margin:20px 0;min-height:24px}.bs-source blockquote{margin:25px 0;padding:0 0 0 22px;border-left:2px solid var(--line);font-size:18px;line-height:1.9}.bs-source{margin-top:24px}#bs-section{width:100%;padding:12px;border:1px solid var(--line);background:var(--paper);font-size:15px;margin-top:8px;white-space:normal}.bs-questions{padding-left:23px}.bs-questions li{padding-left:5px;margin:16px 0;line-height:1.65}.bs-check{margin-top:35px;padding-top:12px;border-top:1px solid var(--line)}.bs-answers{display:grid;gap:10px}.bs-answers button{text-align:left;line-height:1.6;padding:14px 18px;background:var(--paper);border:1px solid var(--line);border-radius:6px;font-size:16px}.bs-answers button[aria-pressed=true]{border-color:var(--wine);background:var(--paper2)}.bs-answers button:disabled{opacity:1;cursor:default}.bs-tool{padding:clamp(20px,4vw,45px)!important;max-width:1000px}.bs-controls{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:28px 0}.bs-controls label{display:flex;flex-direction:column;gap:10px;font-size:15px}.bs-controls input,.bs-controls select{padding:12px;width:100%;border:1px solid var(--line);background:var(--paper);font-size:16px;border-radius:6px}.bs-timing{display:grid;grid-template-columns:1fr 1fr;gap:25px}.bs-timing section{background:var(--paper2);padding:22px;border-radius:8px}.bs-timing h3{margin-top:0!important}.bs-timing li{line-height:1.6;margin:10px 0}.bs-current-range td{background:var(--paper2);color:var(--wine)}.bs-search-list{display:flex;flex-direction:column;max-height:470px;overflow:auto;border:1px solid var(--line);border-radius:6px}.bs-search-list button{display:block;text-align:left;border:0;border-bottom:1px solid var(--line);background:var(--paper);padding:16px;font-size:17px}.bs-search-list small{display:block;margin-top:6px;font-size:12px;color:var(--muted)}#bs-reader-return{margin-bottom:15px}#book-studies .btn{font-size:14px;min-height:38px;white-space:normal}#book-studies button:hover:not(:disabled){filter:brightness(.97)}
@media(max-width:1050px){.bs-layout{grid-template-columns:1fr}.bs-outline{position:static;max-height:340px}.bs-outline nav{display:grid;grid-template-columns:1fr 1fr}}@media(max-width:650px){.bs-book{grid-template-columns:35px 1fr;gap:16px;padding:20px!important}.bs-book-number{font-size:30px;padding-right:10px}.bs-row-meta{min-width:66px;font-size:11px}.bs-contents button{gap:10px;font-size:18px}.bs-contents small{font-size:13px}.bs-controls,.bs-timing{grid-template-columns:1fr}.bs-outline nav{grid-template-columns:1fr}.bs-lesson p,.bs-lesson li{font-size:16px}.bs-footer button{flex:1 1 110px}.bs-top{gap:10px}.bs-source blockquote{font-size:17px;padding-left:15px}.bs-example{padding-left:16px}}
@media(prefers-reduced-motion:reduce){#book-studies *{scroll-behavior:auto!important}}