.book-reader{--display:var(--font-space-grotesk), ui-sans-serif, system-ui, sans-serif;--serif:var(--font-newsreader), "Iowan Old Style", Georgia, serif;--sans:var(--font-inter), ui-sans-serif, system-ui, sans-serif;--paper:#faf6ee;--paper-deep:#f4eedf;--paper-edge:#ece3ce;--ink:#1a1814;--ink-soft:#3a3630;--ink-mute:#6b6660;--ink-faint:#9b958c;--rule:#1a18141a;--rule-strong:#1a181438;--hi:#ef44441a;--accent:#c5392e;--accent-deep:#8a2520;--accent-soft:#c5392e1a;--reader-max:640px;--sidebar-w:312px;--topbar-h:54px;background:var(--paper);color:var(--ink);font-family:var(--serif);font-feature-settings:"kern" 1, "liga" 1, "calt" 1, "onum" 1;min-height:100vh;font-size:19px;line-height:1.7;transition:background .25s,color .25s}.book-reader[data-book-theme=dark]{--paper:#16140f;--paper-deep:#1d1a14;--paper-edge:#26221a;--ink:#e8e1d1;--ink-soft:#c4bdad;--ink-mute:#8e887b;--ink-faint:#5f5a50;--rule:#e8e1d11a;--rule-strong:#e8e1d138;--hi:#ef444426;--accent:#ef4444;--accent-deep:#b22b26;--accent-soft:#ef444424}.book-reader a{color:inherit;text-decoration:none}.book-reader button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0;padding:0}.book-reader ::selection{background:var(--accent);color:#fff}.book-reader .progress{z-index:200;pointer-events:none;height:2px;position:fixed;top:0;left:0;right:0}.book-reader .progress-fill{background:var(--accent);width:0;height:100%;transition:width .12s linear}.book-reader .topbar{height:var(--topbar-h);z-index:100;background:color-mix(in srgb, var(--paper) 88%, transparent);-webkit-backdrop-filter:saturate(140%)blur(10px);border-bottom:1px solid var(--rule);font-family:var(--sans);justify-content:space-between;align-items:center;padding:0 22px;display:flex;position:fixed;top:0;left:0;right:0}.book-reader .tb-left,.book-reader .tb-right{align-items:center;gap:14px;display:flex}.book-reader .tb-mark{font-family:var(--display);color:var(--accent);letter-spacing:.01em;align-items:center;gap:8px;font-size:14px;font-style:italic;font-weight:700;display:inline-flex}.book-reader .tb-mark-icon{background:var(--accent);flex:none;width:26px;height:14px;-webkit-mask:url(/paddle.svg) 50%/contain no-repeat;mask:url(/paddle.svg) 50%/contain no-repeat}.book-reader .tb-divider{background:var(--rule-strong);width:1px;height:18px}.book-reader .tb-book{font-family:var(--serif);color:var(--ink-mute);white-space:nowrap;text-overflow:ellipsis;max-width:50vw;font-size:13.5px;font-style:italic;overflow:hidden}.book-reader .tb-btn{width:36px;height:36px;color:var(--ink-mute);border-radius:8px;justify-content:center;align-items:center;transition:all .15s;display:flex}.book-reader .tb-btn:hover{background:var(--paper-edge);color:var(--ink)}.book-reader .tb-btn svg{width:18px;height:18px}.book-reader .tb-progress{font-family:var(--sans);color:var(--ink-faint);font-variant-numeric:tabular-nums;letter-spacing:.04em;font-size:11.5px}@media (max-width:720px){.book-reader .tb-book,.book-reader .tb-progress{display:none}}.book-reader .shell{grid-template-columns:var(--sidebar-w) 1fr;padding-top:var(--topbar-h);min-height:100vh;transition:grid-template-columns .26s;display:grid}@media (max-width:980px){.book-reader .shell{grid-template-columns:1fr}}.book-reader aside.toc{border-right:1px solid var(--rule);top:var(--topbar-h);height:calc(100vh - var(--topbar-h));min-width:0;font-family:var(--sans);background:color-mix(in srgb, var(--paper-deep) 70%, var(--paper));align-self:start;font-size:13px;position:sticky;overflow:hidden auto}.book-reader .toc-inner{width:var(--sidebar-w);padding:26px 22px 60px}.book-reader aside.toc::-webkit-scrollbar{width:8px}.book-reader aside.toc::-webkit-scrollbar-thumb{background:var(--rule-strong);border-radius:4px}@media (max-width:980px){.book-reader aside.toc{top:var(--topbar-h);width:min(86vw,360px);height:calc(100vh - var(--topbar-h));background:var(--paper);z-index:90;transition:transform .22s;position:fixed;left:0;transform:translate(-100%);box-shadow:4px 0 24px #0000002e}.book-reader[data-nav-open=true] aside.toc{transform:translate(0)}.book-reader .toc-inner{width:100%}}@media (min-width:981px){.book-reader[data-nav-open=true] .shell{grid-template-columns:0 1fr}}.book-reader .toc-cover-link{font-family:var(--display);color:var(--ink);border-radius:8px;align-items:center;gap:10px;margin-bottom:14px;padding:8px 10px;font-size:13px;font-weight:600;transition:all .15s;display:flex}.book-reader .toc-cover-link:hover{background:var(--paper-edge)}.book-reader .toc-cover-link:before{content:"";background:linear-gradient(95deg, var(--accent-deep), var(--accent));width:18px;height:22px;box-shadow:inset -2px 0 0 #0000002e, 1px 1px 0 var(--paper-edge);border-radius:1px 3px 3px 1px}.book-reader .toc-part{margin-top:18px}.book-reader .toc-part-head{font-family:var(--display);letter-spacing:.14em;text-transform:uppercase;color:var(--ink-mute);border-bottom:1px dashed var(--rule);align-items:baseline;gap:10px;margin-bottom:4px;padding:6px 10px 10px;font-size:11px;font-weight:600;display:flex}.book-reader .toc-part-roman{color:var(--accent);font-style:italic}.book-reader .toc-chapter{margin-top:2px}.book-reader .toc-ch-head{cursor:pointer;color:var(--ink);text-align:left;border-radius:7px;grid-template-columns:22px 1fr 14px;align-items:flex-start;gap:8px;width:100%;padding:8px;transition:all .12s;display:grid}.book-reader .toc-ch-head:hover{background:var(--paper-edge)}.book-reader .toc-ch-num{font-family:var(--display);color:var(--ink-faint);font-variant-numeric:tabular-nums;font-size:13px;font-weight:600;line-height:1.35}.book-reader .toc-ch-title{font-family:var(--serif);color:var(--ink-soft);font-size:13.5px;font-weight:500;line-height:1.35}.book-reader .toc-ch-caret{color:var(--ink-faint);margin-top:5px;transition:transform .18s;display:flex}.book-reader .toc-chapter.open>.toc-ch-head .toc-ch-caret{transform:rotate(90deg)}.book-reader .toc-sections{border-left:1px solid var(--rule);margin:4px 0 12px 30px;padding-left:12px;display:none}.book-reader .toc-chapter.open .toc-sections{display:block}.book-reader .toc-sect{cursor:pointer;color:var(--ink-mute);border-radius:6px;grid-template-columns:32px 1fr;gap:6px;padding:6px 8px;transition:all .12s;display:grid}.book-reader .toc-sect:hover{color:var(--ink);background:var(--paper-edge)}.book-reader .toc-sect-num{font-family:var(--display);color:var(--ink-faint);font-variant-numeric:tabular-nums;font-size:11.5px;font-weight:500;line-height:1.45}.book-reader .toc-sect-title{font-family:var(--serif);font-size:13px;line-height:1.4}.book-reader .toc-sect.active{background:var(--accent-soft);color:var(--ink)}.book-reader .toc-sect.active .toc-sect-num{color:var(--accent);font-weight:600}.book-reader main.stage{min-width:0}.book-reader .cover{min-height:calc(100vh - var(--topbar-h));grid-template-columns:1.05fr .95fr;display:grid;position:relative}@media (max-width:880px){.book-reader .cover{grid-template-columns:1fr}}.book-reader .cover-text{background:radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 55%), var(--paper);flex-direction:column;justify-content:center;padding:clamp(40px,7vw,96px) clamp(28px,6vw,80px);display:flex;position:relative}.book-reader .cover-art{background:var(--paper-deep);border-left:1px solid var(--rule);justify-content:center;align-items:center;padding:40px;display:flex;position:relative;overflow:hidden}@media (max-width:880px){.book-reader .cover-art{border-left:0;border-top:1px solid var(--rule);min-height:50vh}}.book-reader .cover-kicker{font-family:var(--sans);letter-spacing:.22em;text-transform:uppercase;color:var(--accent);align-items:center;gap:12px;font-size:11px;font-weight:600;display:inline-flex}.book-reader .cover-kicker:before{content:"";background:var(--accent);width:28px;height:1.5px}.book-reader h1.cover-title{font-family:var(--display);letter-spacing:-.03em;color:var(--ink);text-wrap:balance;margin:24px 0 0;font-size:clamp(48px,7.6vw,104px);font-weight:700;line-height:.92}.book-reader h1.cover-title em{color:var(--accent);font-style:italic;font-weight:700}.book-reader .cover-subtitle{font-family:var(--serif);color:var(--ink-soft);max-width:32em;margin:24px 0 0;font-size:clamp(17px,1.5vw,21px);font-style:italic;line-height:1.45}.book-reader .cover-meta{border-top:1px solid var(--rule);font-family:var(--sans);flex-wrap:wrap;gap:28px 40px;margin-top:36px;padding-top:20px;display:flex}.book-reader .cover-meta dt{letter-spacing:.15em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:4px;font-size:10.5px;font-weight:600}.book-reader .cover-meta dd{font-family:var(--display);color:var(--ink);letter-spacing:-.01em;font-variant-numeric:tabular-nums;margin:0;font-size:18px;font-weight:600}.book-reader .cover-meta dd .unit{color:var(--accent);margin-left:2px;font-size:.7em}.book-reader .cover-ctas{flex-wrap:wrap;gap:14px;margin-top:40px;display:flex}.book-reader .btn-primary{font-family:var(--display);background:var(--ink);color:var(--paper);border-radius:6px;align-items:center;gap:10px;padding:14px 22px;font-size:14px;font-weight:600;transition:transform .15s;display:inline-flex}.book-reader .btn-primary:hover{transform:translateY(-2px)}.book-reader .btn-secondary{font-family:var(--sans);border:1px solid var(--rule-strong);color:var(--ink);border-radius:6px;align-items:center;gap:8px;padding:14px 18px;font-size:13.5px;font-weight:500;transition:all .15s;display:inline-flex}.book-reader .btn-secondary:hover{border-color:var(--ink);background:var(--paper-edge)}.book-reader .btn-primary svg,.book-reader .btn-secondary svg{width:15px;height:15px}.book-reader .cover-byline{font-family:var(--sans);color:var(--ink-faint);letter-spacing:.08em;text-transform:uppercase;font-size:11.5px;position:absolute;bottom:clamp(20px,4vw,40px)}.book-reader .book-object{perspective:1600px;aspect-ratio:2/3;filter:drop-shadow(0 40px 50px #00000047);width:min(74%,360px);transform:rotate(-3deg)}.book-reader .book-flat{color:#f7eedf;width:100%;height:100%;font-family:var(--display);background:linear-gradient(90deg,#0000002e 0 8px,#0000 8px 14px,#00000014 14px 18px,#0000 18px),linear-gradient(165deg,#e54141 0%,#be3434 65%,#8d2726 100%);border-radius:4px 8px 8px 4px;flex-direction:column;padding:36px 30px 30px 36px;display:flex;position:relative;box-shadow:inset -8px 0 18px #00000040,inset 6px 0 #ffffff0f,inset 0 1px #ffffff2e}.book-reader 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.t{font-family:var(--serif);color:var(--ink);font-size:16px;line-height:1.3}.book-reader .rn-link.next{text-align:right;align-items:flex-end}.book-reader .rn-link.disabled{opacity:.3;pointer-events:none}@media (prefers-reduced-motion:reduce){.book-reader,.book-reader .progress-fill,.book-reader aside.toc{transition:none}}