/* Book components inherit the SMONAD site theme and shared page shell. */
.bk-library,.bk-reader,.bk-article{padding-bottom:64px;overflow-wrap:break-word}
.f-guide{overflow-wrap:break-word}
.bk-library h2,.bk-reader h2,.bk-article h2{font-family:var(--s-serif);font-weight:400;line-height:1.2}
.bk-library h3,.bk-reader h3,.bk-article h3{line-height:1.35}
.bk-hero{max-width:930px}
.bk-section{margin-block:48px;padding-top:32px;border-top:1px solid var(--s-line)}
.bk-section>h2,.bk-book-contents>h2,.bk-search-results>h2{font-size:clamp(29px,3vw,39px);margin:0 0 16px}
.bk-section>p{max-width:78ch;color:var(--s-text)}
.bk-eyebrow{font:600 11px/1.65 var(--s-sans);letter-spacing:1.3px;text-transform:uppercase;color:var(--s-muted);margin:0 0 12px}
.bk-actions,.bk-book-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px 22px;margin-block:22px}
.bk-button,.bk-field button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;border:1px solid var(--s-ink);background:var(--s-ink);color:var(--s-white);padding:11px 19px;text-decoration:none;font:600 13px/1.5 var(--s-sans);text-align:center}
.bk-button:hover,.bk-field button:hover{background:#245456;color:var(--s-white);text-decoration:none}
.bk-button.is-secondary{background:transparent;color:var(--s-ink);border-color:var(--s-line)}
.bk-button.is-secondary:hover{background:var(--s-soft);border-color:var(--s-ink)}
.bk-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px 28px;margin-top:28px}
.bk-card{display:flex;flex-direction:column;min-width:0;border:1px solid var(--s-line);background:var(--s-white)}
.bk-cover-link{display:flex;align-items:center;justify-content:center;padding:26px 28px;background:var(--s-soft);min-height:278px}
.bk-cover{display:block;width:auto;max-width:100%;height:232px;object-fit:contain;filter:drop-shadow(5px 8px 6px #163c3e25)}
.bk-card-body{padding:25px;display:flex;flex-direction:column;flex:1}
.bk-card-body h3{font:400 28px/1.15 var(--s-serif);margin:0 0 14px}
.bk-card-body h3 a{text-decoration:none}
.bk-card-body h3 a:hover{text-decoration:underline}
.bk-card-body>p:not(.bk-eyebrow){color:var(--s-text);font-size:14px;line-height:1.8;margin:0 0 20px}
.bk-card-body .bk-actions{margin:auto 0 0;gap:9px 12px}
.bk-card-body .bk-button{padding:10px 13px;font-size:12px}
.bk-card-body .bk-eyebrow{font-size:10px;letter-spacing:.8px;min-height:34px}
.bk-reading-routes,.bk-topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding:0;list-style:none}
.bk-route,.bk-topic-card{min-width:0;padding:26px;background:var(--s-soft)}
.bk-route h3,.bk-topic-card h2,.bk-topic-card h3{margin:0 0 14px;font:400 25px/1.3 var(--s-serif)}
.bk-route p,.bk-topic-card p{font-size:14px;color:var(--s-text)}
.bk-route ol{padding-inline-start:21px;margin-bottom:0}
.bk-route li{padding-inline-start:3px;margin-block:9px}
.bk-reader-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;list-style:none;padding:0}
.bk-reader-links>a,.bk-reader-links>li{display:block;min-width:0;padding:16px 0;border-bottom:1px solid var(--s-line);font-size:14px}
.bk-reader-links>a{display:flex;justify-content:space-between;gap:12px;text-decoration:none}
.bk-reader-links>a:hover{text-decoration:underline}
.bk-reader-links>a>span{flex:0 0 auto}
.bk-summary,.bk-reader-panel{display:grid;grid-template-columns:155px minmax(0,1fr);gap:32px;align-items:start;margin-block:32px;padding:30px;background:var(--s-soft)}
.bk-summary img,.bk-panel-cover img{display:block;max-width:100%;max-height:232px;width:auto;height:auto;margin-inline:auto;object-fit:contain;filter:drop-shadow(4px 6px 5px #163c3e20)}
.bk-summary h2,.bk-reader-panel h2{margin:0 0 14px;font:400 32px/1.2 var(--s-serif)}
.bk-summary p,.bk-reader-panel p{color:var(--s-text);margin-block:12px}
.bk-reader-panel .bk-actions{margin-bottom:0}
.bk-meta{display:grid;grid-template-columns:max-content minmax(0,1fr);gap:9px 20px;font-size:14px;margin-block:24px}
.bk-meta dt{font-weight:600}.bk-meta dd{margin:0;color:var(--s-text)}
.bk-note,.bk-notice,.bk-empty{padding:24px 28px;background:var(--s-soft);border-inline-start:3px solid var(--s-accent);margin-block:28px}
.bk-note>:first-child,.bk-notice>:first-child,.bk-empty>:first-child{margin-top:0}
.bk-note>:last-child,.bk-notice>:last-child,.bk-empty>:last-child{margin-bottom:0}
.bk-notice h2{font-size:30px}
.bk-legacy-copy{margin-block:26px;border-top:1px solid var(--s-line);border-bottom:1px solid var(--s-line)}
.bk-legacy-copy>summary{padding:20px 0;font-weight:600;line-height:1.6}
.bk-legacy-copy>div{padding-bottom:22px}
.bk-legacy-copy p,.bk-legacy-content p{line-height:1.9}
.bk-review{padding:26px 0;border-bottom:1px solid var(--s-line);max-width:80ch}
.bk-review h3{margin:0 0 10px;font:400 25px/1.3 var(--s-serif)}
.bk-review-meta{font:13px/1.7 var(--s-sans);color:var(--s-muted)}
.bk-review blockquote{margin:18px 0;padding-inline-start:22px;border-inline-start:2px solid var(--s-line)}
.bk-review blockquote>:first-child{margin-top:0}
.bk-series{max-width:85ch}.bk-contents{padding-inline-start:24px}
.bk-contents li{margin-block:9px}
.bk-introduction,.bk-legacy-content{max-width:85ch;min-width:0;margin-inline:auto}
.bk-legacy-content h2{margin-top:40px;font-size:31px}.bk-legacy-content h3{margin-top:30px}
.bk-legacy-content img,.bk-reading-text img{display:inline-block;max-width:100%;height:auto;vertical-align:middle}
.bk-legacy-content figure,.bk-reading-text figure{margin:28px 0;max-width:100%}
.bk-legacy-content figcaption,.bk-reading-text figcaption{font:13px/1.7 var(--s-sans);color:var(--s-muted)}
.bk-legacy-content pre,.bk-reading-text pre{max-width:100%;overflow:auto;font-size:.88em;padding:18px;background:var(--s-soft)}
.bk-table-wrap{max-width:100%;overflow-x:auto;margin-block:24px;overscroll-behavior-inline:contain}
.bk-table-wrap table,.bk-legacy-content table,.bk-reading-text table{border-collapse:collapse;max-width:100%;font-size:.93em}
.bk-table-wrap th,.bk-table-wrap td,.bk-legacy-content th,.bk-legacy-content td,.bk-reading-text th,.bk-reading-text td{padding:11px 14px;vertical-align:top;border-bottom:1px solid var(--s-line)}
.bk-legacy-content table,.bk-reading-text table{display:block;overflow-x:auto;width:100%}
.bk-legacy-content math[display="block"],.bk-reading-text math[display="block"]{max-width:100%;overflow-x:auto;overflow-y:hidden;padding-block:12px;direction:ltr}
.bk-math-inline{display:inline-block;max-width:100%;overflow-x:auto;overflow-y:hidden;vertical-align:middle;direction:ltr}
.bk-legacy-content .bk-equation{overflow-x:auto;max-width:100%;margin-block:24px}
.bk-breadcrumbs{font:12px/1.8 var(--s-sans);display:flex;flex-wrap:wrap;gap:7px;padding-top:25px;color:var(--s-muted)}
.bk-reader-hero{display:grid;grid-template-columns:148px minmax(0,1fr);gap:38px;align-items:center;padding:34px 0 38px}
.bk-reader-cover img{display:block;width:148px;height:auto;max-height:223px;object-fit:contain;filter:drop-shadow(5px 7px 5px #163c3e25)}
.bk-reader-hero h1{font:400 clamp(31px,3.5vw,47px)/1.1 var(--s-serif);letter-spacing:-.6px;margin:0 0 14px;max-width:900px}
.bk-reader-hero .bk-subtitle{font:18px/1.6 var(--s-serif);color:var(--s-text);margin:0}
.bk-reader-hero>div>p:not(.bk-eyebrow):not(.bk-subtitle){font-size:13px}
.bk-book-actions{font-size:13px;margin:16px 0 0}
.bk-reader-tools{display:grid;grid-template-columns:1fr 1fr;gap:28px;padding:25px 28px;background:var(--s-soft);margin-bottom:35px}
.bk-search-form,.bk-jump-form{min-width:0;margin:0}
.bk-search-form label,.bk-jump-form label{display:block;font-size:13px;font-weight:600;margin-bottom:8px}
.bk-field{display:flex;min-width:0;gap:8px}
.bk-field input,.bk-field select{min-width:0;width:100%;flex:1 1 0;min-height:46px;border:1px solid #9faa9d;border-radius:0;padding:10px 12px;background:var(--s-white);color:var(--s-ink);font:16px/1.45 var(--s-sans)}
.bk-field button{flex:0 0 auto;padding-inline:17px}
.bk-help{font-size:11px;line-height:1.65;color:var(--s-muted);margin:7px 0 0}
.bk-reader-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:42px;align-items:start}
.bk-reader-sidebar{min-width:0;position:sticky;top:20px}
.bk-contents-panel{border-top:1px solid var(--s-line);border-bottom:1px solid var(--s-line)}
.bk-contents-panel>summary{font-size:13px;line-height:1.6;padding:17px 0;font-weight:600}
.bk-reader-sidebar .bk-toc{max-height:calc(100dvh - 140px);overflow:auto;padding-bottom:14px}
.bk-toc{list-style:none;padding:0;margin:0}
.bk-toc-item a{display:block;font:14px/1.65 var(--s-sans);text-decoration:none;padding:10px 12px;border-bottom:1px solid var(--s-line)}
.bk-toc-item a:hover{background:var(--s-soft);text-decoration:underline}
.bk-toc-item a[aria-current="page"]{font-weight:600;background:var(--s-ink);color:var(--s-white)}
.bk-toc-item[data-level="1"]{padding-inline-start:12px}
.bk-toc-item[data-level="2"]{padding-inline-start:24px}
.bk-toc-item[data-level="3"]{padding-inline-start:36px}
.bk-toc-item[data-level="4"],.bk-toc-item[data-level="5"],.bk-toc-item[data-level="6"],.bk-toc-item[data-level="7"],.bk-toc-item[data-level="8"]{padding-inline-start:44px}
.bk-book-contents{max-width:900px;margin-inline:auto}
.bk-book-contents>.bk-toc{margin-block:24px}
.bk-book-contents .bk-toc-item a{font-size:16px;padding-block:14px}
.bk-reader-article{min-width:0;max-width:80ch}
.bk-reader-article>h2{font-size:clamp(28px,3vw,38px);margin:26px 0}
.bk-reading-controls{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font:12px/1.5 var(--s-sans);padding-bottom:20px;border-bottom:1px solid var(--s-line)}
.bk-reading-controls>span{margin-inline-end:8px}
.bk-reading-controls button{min-width:44px;min-height:44px;padding:8px 12px;border:1px solid var(--s-line);background:var(--s-white);color:var(--s-ink);font:13px/1.5 var(--s-sans)}
.bk-reading-controls button:hover:enabled{background:var(--s-soft);border-color:var(--s-ink)}
.bk-reading-controls button:disabled{opacity:.4;cursor:default}
.bk-reading-controls [data-bk-print]{margin-inline-start:auto}
.bk-reading-text{font:18px/1.95 var(--s-serif);color:var(--s-text);overflow-wrap:anywhere}
.bk-reading-text[data-bk-reading-scale="-1"]{font-size:16px}
.bk-reading-text[data-bk-reading-scale="1"]{font-size:20px}
.bk-reading-text[data-bk-reading-scale="2"]{font-size:22px}
.bk-reading-text[data-bk-reading-scale="3"]{font-size:24px}
.bk-reading-text h2,.bk-reading-text h3,.bk-reading-text h4{color:var(--s-ink);margin:1.6em 0 .65em;line-height:1.35}
.bk-reading-text h2{font-size:1.5em}.bk-reading-text h3{font-size:1.3em}.bk-reading-text h4{font-size:1.12em}
.bk-reading-text p{margin:0 0 1.1em}
.bk-reading-text blockquote{margin:25px 0;padding-inline-start:24px;border-inline-start:2px solid var(--s-line)}
.bk-reading-text sup,.bk-reading-text sub{line-height:0}
.bk-reading-text :target{scroll-margin-top:24px;outline:2px solid var(--s-accent);outline-offset:6px}
.bk-footnotes{border-top:1px solid var(--s-line);padding-top:26px;margin-top:36px;font-size:.87em}
.bk-chapter-nav{display:grid;grid-template-columns:1fr auto 1fr;align-items:start;gap:18px;border-top:1px solid var(--s-line);padding-top:24px;margin-top:35px;font:12px/1.65 var(--s-sans)}
.bk-chapter-nav a{text-decoration:none}.bk-chapter-nav a:hover{text-decoration:underline}
.bk-chapter-nav a span{display:block;color:var(--s-muted);margin-bottom:7px}
.bk-chapter-nav strong{font-size:13px;font-weight:600}.bk-previous{grid-column:1}.bk-back-contents{grid-column:2;text-align:center}.bk-next{grid-column:3;text-align:end}
.bk-search-results{max-width:850px;margin-inline:auto}
.bk-search-results>ol{list-style:none;padding:0;counter-reset:book-results}
.bk-search-result{border-top:1px solid var(--s-line);padding:24px 0}
.bk-search-result h3{font:400 27px/1.3 var(--s-serif);margin:0 0 13px}
.bk-search-result p{color:var(--s-text);margin:0}
.bk-results-count{font-size:13px;color:var(--s-muted)}
.bk-search-result mark{background:#efe2b7;color:var(--s-ink);padding-inline:2px}
.bk-pagination{display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px;align-items:center;border-top:1px solid var(--s-line);padding-top:24px;font-size:13px}
.bk-pagination a{padding-block:10px}.bk-pagination span{color:var(--s-muted)}
.bk-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
[dir="rtl"] .bk-eyebrow{letter-spacing:0;text-transform:none}
[dir="rtl"] .bk-reader-hero h1,[dir="rtl"] .bk-reader-hero .bk-subtitle,[dir="rtl"] .bk-reading-text,[dir="rtl"] .bk-reader-article>h2,[dir="rtl"] .bk-book-contents>h2,[dir="rtl"] .bk-search-results>h2,[dir="rtl"] .bk-reader-panel h2,.bk-card-body h3[lang="ar"],[dir="rtl"].bk-route h3{font-family:Tahoma,Arial,sans-serif;letter-spacing:0;line-height:1.7}
[dir="rtl"] .bk-reading-text{line-height:2.1}
[dir="rtl"] .bk-legacy-content{font-family:Tahoma,Arial,sans-serif}
@media(max-width:1050px){
  .bk-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.bk-reading-routes,.bk-topic-grid{gap:18px}.bk-route,.bk-topic-card{padding:23px}
  .bk-reader-layout{grid-template-columns:220px minmax(0,1fr);gap:30px}.bk-reader-hero{grid-template-columns:125px minmax(0,1fr);gap:28px}.bk-reader-cover img{width:125px}
}
@media(max-width:800px){
  .bk-reading-routes,.bk-topic-grid{grid-template-columns:1fr}.bk-reader-layout{grid-template-columns:1fr;gap:28px}.bk-reader-sidebar{position:static}.bk-reader-sidebar .bk-toc{max-height:380px}
  .bk-reader-article{max-width:none}.bk-reader-tools{gap:22px;padding:24px}.bk-reader-hero h1{font-size:34px}
}
@media(max-width:600px){
  .bk-grid{grid-template-columns:1fr;gap:24px}.bk-card{display:grid;grid-template-columns:110px minmax(0,1fr)}.bk-cover-link{padding:15px 10px;min-height:190px;align-items:flex-start}.bk-cover{height:auto;max-height:166px;margin-top:7px}
  .bk-card-body{padding:19px 16px}.bk-card-body h3{font-size:25px}.bk-card-body .bk-eyebrow{font-size:9px;min-height:0}.bk-card-body>p:not(.bk-eyebrow){font-size:13px}.bk-card-body .bk-button{padding:10px 12px}
  .bk-section{margin-block:36px;padding-top:26px}.bk-reader-links{grid-template-columns:1fr}.bk-summary,.bk-reader-panel{grid-template-columns:95px minmax(0,1fr);gap:20px;padding:22px 18px}.bk-summary h2,.bk-reader-panel h2{font-size:26px}.bk-summary p,.bk-reader-panel p{font-size:14px}
  .bk-summary .bk-actions,.bk-reader-panel .bk-actions{gap:14px}.bk-reader-panel .bk-button{padding-inline:12px}
  .bk-reader-hero{grid-template-columns:80px minmax(0,1fr);gap:20px;padding-block:28px}.bk-reader-cover{align-self:start}.bk-reader-cover img{width:80px;max-height:130px}.bk-reader-hero h1{font-size:29px;letter-spacing:-.3px}.bk-reader-hero .bk-subtitle{font-size:16px}.bk-reader-hero .bk-eyebrow{font-size:9px}
  .bk-reader-tools{grid-template-columns:1fr;padding:22px 18px;gap:20px}.bk-book-actions{gap:9px 16px;font-size:12px}.bk-field button{padding-inline:13px}
  .bk-reading-controls{gap:6px}.bk-reading-controls>span{flex:1 0 100%;margin:0 0 4px}.bk-chapter-nav{grid-template-columns:1fr 1fr;gap:22px}.bk-back-contents{grid-column:1/-1;grid-row:2}.bk-next{grid-column:2}
  .bk-note,.bk-notice,.bk-empty{padding:22px}.bk-meta{grid-template-columns:1fr;gap:5px}.bk-meta dd{margin-bottom:12px}
  .bk-breadcrumbs{font-size:11px;gap:5px}.bk-introduction,.bk-legacy-content{font-size:15px}.bk-library,.bk-reader,.bk-article{padding-bottom:40px}
}
@media(max-width:380px){.bk-card{grid-template-columns:88px minmax(0,1fr)}.bk-card-body{padding:17px 14px}.bk-card-body h3{font-size:23px}.bk-summary,.bk-reader-panel{grid-template-columns:1fr}.bk-summary>a,.bk-panel-cover{max-width:100px}.bk-reader-hero{grid-template-columns:64px minmax(0,1fr);gap:16px}.bk-reader-hero h1{font-size:25px}.bk-reader-cover img{width:64px}.bk-reader-hero .bk-subtitle{font-size:15px}}
@media print{
  .bk-breadcrumbs,.bk-reader-cover,.bk-reader-tools,.bk-reader-sidebar,.bk-reading-controls,.bk-chapter-nav,.bk-other-books,.bk-book-actions{display:none!important}
  .bk-reader-hero,.bk-reader-layout{display:block;padding:0;margin:0}.bk-reader-hero h1{font-size:17pt}.bk-reader-hero .bk-subtitle{font-size:11pt}.bk-reader-hero .bk-eyebrow{display:none}
  .bk-reader-article{max-width:none}.bk-reader-article>h2{font-size:20pt;margin-block:18pt}.bk-reading-text[data-bk-reading],.bk-legacy-content{font-size:11.5pt;line-height:1.65;color:#000}.bk-footnotes{font-size:10pt}
  .bk-reading-text table,.bk-legacy-content table{display:table;width:100%;font-size:9pt}.bk-table-wrap,.bk-legacy-content math[display="block"],.bk-reading-text math[display="block"]{overflow:visible}
  .bk-math-inline{display:inline;overflow:visible;max-width:none}
  .bk-note,.bk-reader-panel{background:transparent;border:1px solid #999;break-inside:avoid}.bk-reader .s-wrap{padding:0}.bk-library,.bk-reader,.bk-article{padding-bottom:0}
}