.documentation-book{--book-bg:#fff;--book-shadow:0 1px 3px rgba(0,0,0,.06),0 0 1px rgba(0,0,0,.04);--book-radius:12px;--book-border:1px solid rgba(15,23,42,.08);--doc-border-tertiary:rgba(15,23,42,.12);--doc-text-secondary:#475569}.doc-book-inner{background:var(--book-bg);border-radius:var(--book-radius);box-shadow:var(--book-shadow);border:var(--book-border);overflow:hidden;width:100%;min-height:60vh}.doc-book-header{padding:1.25rem 1.5rem 1rem;text-align:left;border-bottom:1px solid var(--doc-border-tertiary)}.doc-book-title{font-size:22px;font-weight:700;line-height:1.25;color:#0f172a;margin:0}.doc-book-subtitle,.doc-book-title{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.doc-book-subtitle{font-size:14px;line-height:1.5;color:#64748b;margin:.35rem 0 0}.doc-section-pills{position:sticky;top:0;z-index:20;background:var(--book-bg);border-bottom:1px solid var(--doc-border-tertiary);padding:.5rem 0}.doc-section-pills__scroll{display:flex;flex-wrap:nowrap;gap:.5rem;overflow-x:auto;padding:.25rem 1rem;scroll-behavior:smooth;-webkit-overflow-scrolling:touch;scrollbar-width:thin}.doc-section-pills__scroll::-webkit-scrollbar{height:6px}.doc-section-pills__scroll::-webkit-scrollbar-thumb{background:rgba(15,23,42,.15);border-radius:3px}.doc-section-pill{flex:0 0 auto;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:13px;font-weight:500;line-height:1.2;padding:.45rem .85rem;border-radius:9999px;border:1px solid var(--doc-border-tertiary);background:#f8fafc;color:#475569;cursor:pointer;white-space:nowrap;transition:background .15s,border-color .15s,color .15s}.doc-section-pill:hover{background:#f1f5f9;border-color:rgba(15,23,42,.18);color:#334155}.doc-section-pill--active{background:#e0e7ff;border-color:#a5b4fc;color:#3730a3}.doc-book-body{padding:1.5rem 1.5rem 3rem;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}.doc-section{scroll-margin-top:6.5rem}.doc-section:not(:first-child){margin-top:48px;padding-top:24px;border-top:.5px solid var(--doc-border-tertiary)}.doc-section-title{font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:18px;font-weight:500;line-height:1.35;color:#0f172a;margin:0 0 1rem;padding-bottom:0;border-bottom:none}.doc-paragraph-wrap{position:relative;scroll-margin-top:6.5rem;max-width:720px;margin-left:auto;margin-right:auto;padding-right:2.5rem}.doc-paragraph-wrap:hover .doc-bookmark-btn{opacity:1}.doc-bookmark-btn{position:absolute;right:0;top:.15rem;width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;border:none;background:transparent;color:#94a3b8;cursor:pointer;border-radius:6px;opacity:.65;transition:color .2s,opacity .2s}.doc-bookmark-btn:hover{color:#6366f1}.doc-bookmark-btn.is-bookmarked{color:#6366f1;opacity:1}.doc-paragraph{font-size:16px;line-height:1.7;color:var(--doc-text-secondary);margin:0 auto 16px;max-width:680px}.doc-paragraph:last-child{margin-bottom:0}.doc-paragraph-img{margin:0 auto 1rem;max-width:720px;border-radius:8px;overflow:hidden;box-shadow:0 4px 12px rgba(0,0,0,.06);background:#fff;border:1px solid rgba(15,23,42,.08)}.doc-paragraph-img img,.doc-paragraph-img__el{width:100%;max-width:720px;height:auto;display:block;min-height:120px;-o-object-fit:contain;object-fit:contain;vertical-align:middle}.doc-bookmarks-bar{margin-bottom:1.5rem;max-width:680px;margin-left:auto;margin-right:auto;padding:.75rem 1rem;background:#f8fafc;border-radius:8px;font-size:.9rem;border:1px solid var(--doc-border-tertiary)}.doc-bookmarks-bar h3{margin:0 0 .5rem;font-size:.95rem;color:#475569;font-weight:600}.doc-bookmarks-list{display:flex;flex-wrap:wrap;gap:.5rem}.doc-bookmarks-list a{color:#4f46e5;text-decoration:none;padding:.25rem .5rem;border-radius:4px;background:#e0e7ff}.doc-bookmarks-list a:hover{text-decoration:underline}