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h3{display:flex;align-items:center;gap:10px;margin:0 0 4px;font-size:15px;letter-spacing:-.01em}.shelf-template .demo-card p{margin:0 0 14px;color:var(--muted);font-size:13px;line-height:1.55}.shelf-template .demo-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.shelf-template .demo-grid-3{display:grid;gap:12px}.shelf-template .demo-stat{padding:16px;border:1px solid var(--border);border-radius:var(--radius);background:#fff}.shelf-template .demo-stat span{display:block;color:var(--muted);font-size:12px;font-weight:560}.shelf-template .demo-stat strong{display:block;margin-top:6px;font-size:28px;letter-spacing:-.04em;line-height:1}.shelf-template .demo-stat em{font-style:normal;color:var(--accent);font-size:12px;font-weight:620}.shelf-template .demo-empty{display:grid;place-items:center;gap:6px;padding:40px 24px;border:1px dashed var(--border-strong);border-radius:var(--radius);background:var(--surface-raised);text-align:center;color:var(--muted)}.shelf-template .demo-empty strong{color:var(--text);font-size:15px}.shelf-template{--bg:#fff;--bg-soft:#f6f7f7;--surface:#fff;--surface-raised:#fbfbfb;--text:#111314;--muted:#646a70;--faint:#767d84;--border:#e4e7e7;--border-strong:#cfd5d5;--ink:#111314;--accent:#126348;--accent-soft:#e9f5f0;--shadow-soft:0 8px 28px rgba(17,19,20,.07);--radius:8px;color:var(--text)}.dark .shelf-template{--bg:#161b20;--bg-soft:#20262b;--surface:#161b20;--surface-raised:#1c2228;--text:#edf0f2;--muted:#acb4bb;--faint:#a2acb4;--border:#343d45;--border-strong:#54606b;--ink:#edf0f2;--accent:#8cd4b0;--accent-soft:#213c31;--shadow-soft:0 8px 28px rgba(0,0,0,.2)}.shelf-template .demo-card,.shelf-template .demo-stat{background:var(--surface)}.shelf-template .demo-btn{color:var(--bg);text-decoration:none!important}.shelf-template .demo-btn-ghost{color:var(--text);background:var(--surface)}.shelf-template .demo-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.shelf-metrics{margin:24px 0 30px}.shelf-template .demo-stat strong{font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.shelf-template .demo-stat strong small{font-size:13px;color:var(--muted);font-weight:400;letter-spacing:0;margin-left:4px}.shelf-template .demo-section-head h2{font-size:17px;line-height:1.6;border:0;padding:0}.shelf-template .demo-section-head a{text-decoration:none;color:var(--muted)}.shelf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:20px;list-style:none!important;padding:0!important;margin:20px 0 0!important;align-items:start}.shelf-grid>li{margin:0!important;min-width:0}.shelf-template .shelf-book-card{padding:20px 18px 16px}.shelf-book-link{display:block;color:inherit;text-decoration:none!important}.shelf-book-link:hover .shelf-book-caption h2{color:var(--study-accent)}.shelf-cover{display:flex;justify-content:center;align-items:center;min-height:258px;padding:8px 6px 18px}.shelf-chapters .shelf-cover{min-height:228px}.shelf-cover-content{display:flex;flex-direction:column;justify-content:space-between;box-sizing:border-box;padding:22px 19px 18px 23px;color:#fff;border-left:1px solid rgba(255,255,255,.2)}.shelf-cover-content:before{content:"";position:absolute;inset:0 auto 0 8px;width:2px;background:rgba(0,0,0,.18)}.shelf-cover-provider{font-size:11px;letter-spacing:.05em;opacity:.8;line-height:1.6}.shelf-cover-title{font-size:22px;line-height:1.45;letter-spacing:-.04em;font-weight:600;overflow-wrap:anywhere}.shelf-cover-code{font-family:ui-monospace,monospace;font-size:11px;letter-spacing:.03em;border-top:1px solid rgba(255,255,255,.3);padding-top:12px}.shelf-book-caption{margin:8px 0 12px}.shelf-book-caption>h2{font-size:16px!important;font-weight:600;line-height:1.6;border:0;margin:5px 0 7px!important;padding:0!important;letter-spacing:-.02em}.shelf-template .shelf-book-caption>p{color:var(--muted);font-size:13px;line-height:1.7;margin:0}.shelf-card-meta{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px 10px;font-size:11px;color:var(--muted);line-height:1.8}.shelf-progress{margin-top:13px}.shelf-progress progress{width:100%;height:5px;display:block;accent-color:var(--accent)}.shelf-progress progress::-webkit-progress-value{background:var(--accent)}.shelf-progress progress::-moz-progress-bar{background:var(--accent)}.shelf-progress>span{display:block;font-size:11px;color:var(--muted);margin-top:7px}.shelf-tabs{display:flex;gap:25px;border-bottom:1px solid var(--study-line);margin:24px 0}.shelf-tabs>a{display:flex;align-items:center;gap:7px;padding:12px 2px;color:var(--study-muted);font-size:14px;text-decoration:none!important;border-bottom:2px solid transparent}.shelf-tabs>a[aria-current=page]{color:var(--study-accent);border-bottom-color:var(--study-accent);font-weight:600}.shelf-tabs>a>span{font-size:11px}.shelf-hero{display:grid;grid-template-columns:190px minmax(0,1fr);gap:28px;align-items:center;margin-top:22px}.shelf-hero .shelf-cover{min-height:234px}.shelf-hero-copy{min-width:0}.shelf-template .shelf-hero p.shelf-hero-description{font-size:20px;line-height:1.7;font-weight:550;margin:12px 0 14px;letter-spacing:-.03em;color:var(--text)}.shelf-section-list{list-style:none!important;padding:0!important;margin:10px 0!important}.shelf-section-list>li{padding:9px 0;margin:0!important;font-size:12px;line-height:1.8;border-bottom:1px solid var(--study-line)}.shelf-section-list>li:last-child{border:0}.shelf-sample-links a,.shelf-section-list a,.shelf-source a{color:var(--study-accent);text-decoration:none}.shelf-sample-links a:hover,.shelf-section-list a:hover{text-decoration:underline}.shelf-sample-links{display:grid;gap:10px;font-size:12px;padding-top:12px}.shelf-source{font-size:12px}.shelf-source h3{font-size:14px}.shelf-source p{font-size:12px}.study-disclosure{margin-top:14px;border-top:1px solid var(--study-line)}.study-disclosure-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;min-height:44px;font-size:12px;color:var(--study-muted)}.study-disclosure-toggle{display:grid;place-items:center;flex:none;width:40px;height:40px;border:0;border-radius:7px;background:transparent;color:inherit}.study-disclosure-toggle:hover{background:var(--study-soft)}.study-disclosure-toggle svg{transition:transform .18s ease}.study-disclosure-toggle[aria-expanded=true] svg{transform:rotate(90deg)}.study-disclosure [hidden]{display:none!important}@media(max-width:600px){.shelf-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}.shelf-template .shelf-book-card{padding:18px 12px 14px}.shelf-hero{grid-template-columns:1fr;gap:8px;text-align:center}.shelf-hero .shelf-card-meta,.shelf-hero .study-action-row{justify-content:center}.shelf-hero-description{font-size:18px!important}.shelf-template .demo-grid-3{gap:8px}.shelf-template .demo-stat{padding:13px 10px}.shelf-template .demo-stat strong{font-size:23px}.shelf-template .demo-stat strong small{display:block;margin:6px 0 0;font-size:11px}.shelf-cover{padding-inline:0}}@media(prefers-reduced-motion:reduce){.shelf-cover .book{animation:none!important;transition:none!important}.study-disclosure-toggle svg{transition:none}}.shelf-template .shelf-book-card>p.shelf-availability,.shelf-template .shelf-hero p.shelf-availability{margin:10px 0 0;color:var(--muted);font-size:12px;line-height:1.7}