.book-reader{--reader-bg: #07110f;--reader-bg-soft: #0b1815;--reader-panel: rgba(14, 31, 27, .82);--reader-panel-solid: #10201c;--reader-paper: #f3efe5;--reader-ink: #eaf3ee;--reader-muted: #9fb0a8;--reader-line: rgba(225, 241, 233, .12);--reader-accent: #63e6b4;--reader-accent-deep: #30b986;--reader-serif: Georgia, "Times New Roman", serif;--reader-sans: "Inter", system-ui, sans-serif;--reader-display: "Inter", system-ui, sans-serif;min-height:100vh;color:var(--reader-ink);background:radial-gradient(circle at 80% 8%,rgba(43,188,137,.12),transparent 30rem),radial-gradient(circle at 10% 28%,rgba(39,155,211,.08),transparent 24rem),var(--reader-bg);font-family:var(--reader-sans);transition:color .24s ease,background .24s ease}.book-reader[data-reader-theme=paper]{--reader-bg: #ebe6da;--reader-bg-soft: #f4f0e6;--reader-panel: rgba(249, 246, 237, .9);--reader-panel-solid: #f8f4ea;--reader-ink: #202a26;--reader-muted: #66716c;--reader-line: rgba(36, 54, 47, .14);--reader-accent: #0b805d;--reader-accent-deep: #086a4d;background:radial-gradient(circle at 80% 8%,rgba(40,155,116,.12),transparent 30rem),linear-gradient(180deg,#f2eee4 0%,var(--reader-bg) 100%)}.reader-state{min-height:100vh;display:grid;place-content:center;justify-items:center;gap:1rem;color:#edf8f3;background:#07110f;font-family:system-ui,sans-serif}.reader-state a{color:#63e6b4}.reader-loader{width:2.75rem;aspect-ratio:1;border-radius:50%;border:3px solid rgba(99,230,180,.2);border-top-color:#63e6b4;animation:reader-spin .85s linear infinite}@keyframes reader-spin{to{transform:rotate(360deg)}}.reader-header{position:sticky;top:0;z-index:120;height:4.25rem;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 1.5rem;background:color-mix(in srgb,var(--reader-bg) 84%,transparent);border-bottom:1px solid var(--reader-line);-webkit-backdrop-filter:blur(18px) saturate(130%);backdrop-filter:blur(18px) saturate(130%)}.reader-progress{position:absolute;left:0;bottom:-1px;height:2px;background:linear-gradient(90deg,#2dc68e,#7bf5ca);box-shadow:0 0 14px #63e6b4a6;transition:width .12s linear}.reader-home-link{justify-self:start;display:inline-flex;align-items:center;gap:.55rem;color:var(--reader-muted);text-decoration:none;font-size:.86rem;font-weight:600;transition:color .16s ease,transform .16s ease}.reader-home-link:hover{color:var(--reader-accent);transform:translate(-2px)}.reader-book-id{text-align:center;line-height:1.2}.reader-book-id span{display:block;color:var(--reader-ink);font-family:var(--reader-display);font-size:.72rem;font-weight:800;letter-spacing:.15em}.reader-book-id small{color:var(--reader-muted);font-size:.67rem}.reader-toolbar{justify-self:end;display:flex;align-items:center;gap:.45rem}.reader-icon-button,.reader-font-control{min-height:2.25rem;border:1px solid var(--reader-line);border-radius:.65rem;color:var(--reader-muted);background:#80a0920f}.reader-icon-button{width:2.25rem;display:grid;place-items:center;cursor:pointer}.reader-icon-button:hover,.reader-icon-button.is-active{color:var(--reader-accent);border-color:color-mix(in srgb,var(--reader-accent) 35%,transparent)}.mobile-toc-button{display:none}.reader-font-control{display:flex;align-items:center;gap:.15rem;padding:0 .35rem}.reader-font-control>svg{margin:0 .25rem;font-size:.75rem}.reader-font-control button{border:0;color:inherit;background:transparent;cursor:pointer;padding:.35rem;font-size:.72rem;font-weight:700}.reader-font-control button:hover{color:var(--reader-accent)}.reader-search-panel{position:fixed;z-index:150;top:4.8rem;left:1rem;right:1rem;width:min(42rem,calc(100vw - 2rem));margin:0 auto;overflow:hidden;border:1px solid var(--reader-line);border-radius:1rem;background:var(--reader-panel-solid);box-shadow:0 2rem 5rem #00000059}.reader-search-input-wrap{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:.75rem;padding:.9rem 1rem}.reader-search-input-wrap>svg{color:var(--reader-accent)}.reader-search-input-wrap input{width:100%;border:0;outline:0;color:var(--reader-ink);background:transparent;font:500 1rem var(--reader-sans)}.reader-search-input-wrap input::placeholder{color:var(--reader-muted)}.reader-search-input-wrap button,.reader-sidebar-head button{display:grid;place-items:center;width:2rem;aspect-ratio:1;border:0;color:var(--reader-muted);background:transparent;cursor:pointer}.reader-search-results{max-height:25rem;overflow-y:auto;padding:.35rem;border-top:1px solid var(--reader-line)}.reader-search-results button{width:100%;display:grid;gap:.3rem;padding:.8rem;border:0;border-radius:.65rem;text-align:left;color:var(--reader-ink);background:transparent;cursor:pointer}.reader-search-results button:hover{background:color-mix(in srgb,var(--reader-accent) 9%,transparent)}.reader-search-results span{font-weight:700}.reader-search-results small{color:var(--reader-muted);line-height:1.45}.reader-search-results p{padding:1rem;color:var(--reader-muted)}.reader-sidebar{position:fixed;z-index:90;top:4.25rem;left:0;bottom:0;width:18.5rem;overflow:hidden;border-right:1px solid var(--reader-line);background:color-mix(in srgb,var(--reader-bg-soft) 94%,transparent)}.reader-sidebar-head{display:flex;justify-content:space-between;align-items:flex-start;padding:1.35rem 1.25rem 1rem;border-bottom:1px solid var(--reader-line)}.reader-sidebar-head span{color:var(--reader-accent);font-size:.69rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.reader-sidebar-head h2{margin:.35rem 0 0;color:var(--reader-ink);font:700 1rem var(--reader-display)}.reader-sidebar-head button{display:none}.reader-sidebar nav{height:calc(100% - 5.5rem);overflow-y:auto;padding:.7rem .65rem 4rem;scrollbar-width:thin;scrollbar-color:var(--reader-line) transparent}.reader-sidebar nav button{width:100%;display:grid;grid-template-columns:1.9rem 1fr;gap:.45rem;align-items:start;padding:.62rem .75rem;border:0;border-radius:.55rem;text-align:left;color:var(--reader-muted);background:transparent;cursor:pointer;font:500 .78rem/1.35 var(--reader-sans);transition:.15s ease}.reader-sidebar nav button>span:first-child{color:color-mix(in srgb,var(--reader-muted) 65%,transparent);font:700 .66rem/1.6 var(--reader-display)}.reader-sidebar nav button:hover{color:var(--reader-ink);background:#80a09212}.reader-sidebar nav button.is-active{color:var(--reader-ink);background:color-mix(in srgb,var(--reader-accent) 11%,transparent);box-shadow:inset 2px 0 var(--reader-accent)}.reader-sidebar nav button.is-active>span:first-child{color:var(--reader-accent)}.reader-sidebar nav button.is-part{display:block;margin-top:.7rem;color:var(--reader-accent);font-size:.65rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;pointer-events:none}.reader-main{margin-left:18.5rem;overflow:hidden}.book-hero{min-height:43rem;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(17rem,.7fr);align-items:center;gap:clamp(2rem,7vw,7rem);width:min(73rem,calc(100% - 5rem));margin:0 auto;padding:6rem 0 5rem}.book-hero-copy{max-width:42rem}.book-kicker{display:inline-flex;align-items:center;gap:.6rem;color:var(--reader-accent);font-size:.74rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.book-kicker:before{content:"";width:2rem;height:1px;background:var(--reader-accent)}.book-hero h1{margin:1.4rem 0 1.6rem;color:var(--reader-ink);font:800 clamp(3.1rem,6vw,5.8rem)/.98 var(--reader-display);letter-spacing:-.055em}.book-hero h1 em{color:transparent;font-style:normal;-webkit-text-stroke:1px color-mix(in srgb,var(--reader-accent) 75%,var(--reader-ink))}.book-hero-copy>p{max-width:38rem;margin:0;color:var(--reader-muted);font:400 clamp(1rem,1.5vw,1.16rem)/1.7 var(--reader-sans)}.book-hero-actions{display:flex;gap:.7rem;margin-top:2rem}.book-hero-actions button{display:inline-flex;align-items:center;justify-content:center;gap:.65rem;min-height:3rem;padding:0 1.2rem;border:1px solid var(--reader-accent);border-radius:.7rem;color:#062219;background:var(--reader-accent);cursor:pointer;font:800 .82rem var(--reader-sans);transition:transform .16s ease,box-shadow .16s ease}.book-hero-actions button:hover{transform:translateY(-2px);box-shadow:0 .8rem 2rem #2dc68e2e}.book-hero-actions button.secondary{color:var(--reader-ink);background:transparent;border-color:var(--reader-line)}.book-meta-row{display:flex;gap:2rem;margin-top:2.4rem;color:var(--reader-muted);font-size:.73rem}.book-meta-row span{display:grid;gap:.2rem}.book-meta-row strong{color:var(--reader-ink);font:800 1.05rem var(--reader-display)}.book-cover-wrap{position:relative;justify-self:center;width:min(21rem,100%);perspective:1000px}.book-cover-wrap img{position:relative;z-index:2;width:100%;display:block;border-radius:.4rem .85rem .85rem .4rem;box-shadow:-1rem 1.5rem 4rem #00000073,inset 1rem 0 1rem #0003;transform:rotateY(-7deg) rotateX(2deg)}.book-cover-wrap:after{content:"";position:absolute;z-index:3;inset:0 auto 0 .7rem;width:1px;background:#ffffff2e}.book-cover-wrap>span{position:relative;z-index:2;display:block;margin:1.2rem .5rem 0;color:var(--reader-muted);font:500 .75rem/1.5 var(--reader-sans);text-align:center}.book-cover-glow{position:absolute;z-index:0;inset:10% -10% -5%;border-radius:50%;background:#2ed09633;filter:blur(3rem)}.learning-paths{width:min(73rem,calc(100% - 5rem));margin:0 auto 7rem;padding-top:2rem}.learning-paths-heading span{color:var(--reader-accent);font-size:.7rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.learning-paths-heading h2{max-width:38rem;margin:.7rem 0 2rem;color:var(--reader-ink);font:750 clamp(1.8rem,3vw,2.65rem)/1.15 var(--reader-display);letter-spacing:-.035em}.learning-path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.learning-path-card{position:relative;display:flex;flex-direction:column;min-height:15rem;padding:1.35rem;overflow:hidden;border:1px solid var(--reader-line);border-radius:1rem;text-align:left;color:var(--reader-ink);background:var(--reader-panel);cursor:pointer;transition:transform .18s ease,border-color .18s ease}.learning-path-card:after{content:"";position:absolute;width:9rem;aspect-ratio:1;right:-4rem;top:-4rem;border-radius:50%;background:var(--path-color);opacity:.13;filter:blur(1.5rem)}.learning-path-card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--path-color) 50%,transparent)}.learning-path-card>span{color:var(--path-color);font-size:.67rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase}.learning-path-card strong{margin-top:1rem;font:750 1.15rem var(--reader-display)}.learning-path-card p{margin:.65rem 0 1rem;color:var(--reader-muted);font:400 .86rem/1.6 var(--reader-sans)}.learning-path-card small{display:inline-flex;align-items:center;gap:.45rem;margin-top:auto;color:var(--reader-ink);font-weight:700}.tone-cyan{--path-color: #55d7dc}.tone-amber{--path-color: #f6bf5a}.tone-violet{--path-color: #b8a1ff}.reader-content-shell{position:relative;width:min(52rem,calc(100% - 5rem));margin:0 auto;padding:0 0 8rem}.book-content{color:var(--reader-ink);font:400 calc(1.08rem * var(--reader-scale))/1.84 var(--reader-serif);letter-spacing:-.006em}.book-content>.book-source-title,.book-content>.book-source-title+h2,.book-content>.book-source-title+h2+h3,.book-content>.book-source-title+h2+h3+hr,.book-content>.book-source-title+h2+h3+hr+p,.book-content>.book-source-title+h2+h3+hr+p+p,.book-content>.book-source-title+h2+h3+hr+p+p+hr{display:none}.book-content h1,.book-content h2,.book-content h3,.book-content h4{color:var(--reader-ink);font-family:var(--reader-display);scroll-margin-top:6.2rem}.book-content h2{margin:4.5rem 0 1.35rem;font-size:calc(2.35rem * var(--reader-scale));line-height:1.15;letter-spacing:-.045em}.book-content h3{margin:2.8rem 0 .9rem;color:var(--reader-accent);font-size:calc(1.35rem * var(--reader-scale));line-height:1.3;letter-spacing:-.025em}.book-content h4{margin:2rem 0 .75rem;font-size:calc(1.08rem * var(--reader-scale))}.book-content .book-part-heading{margin:8rem 0 1rem;padding:.65rem 0;border-top:1px solid var(--reader-line);border-bottom:1px solid var(--reader-line);color:var(--reader-accent);font-size:calc(.78rem * var(--reader-scale));letter-spacing:.15em;text-transform:uppercase}.book-content .book-chapter-heading{position:relative;margin-top:7rem;padding-top:2rem}.book-content .book-chapter-heading:before{content:"FIELD NOTE";display:block;margin-bottom:.8rem;color:var(--reader-accent);font:800 .66rem var(--reader-sans);letter-spacing:.16em}.book-content p{margin:0 0 1.55rem}.book-content strong{color:var(--reader-ink);font-weight:700}.book-content em{color:color-mix(in srgb,var(--reader-accent) 78%,var(--reader-ink))}.book-content a{color:var(--reader-accent);text-decoration-thickness:1px;text-underline-offset:.18em}.book-content ul,.book-content ol{margin:1.2rem 0 1.8rem;padding-left:1.4rem}.book-content li{margin-bottom:.65rem;padding-left:.25rem}.book-content li::marker{color:var(--reader-accent);font-weight:700}.book-content hr{height:1px;margin:4rem 0;border:0;background:var(--reader-line)}.book-content blockquote{position:relative;margin:2.5rem 0;padding:1.5rem 1.7rem;border:1px solid color-mix(in srgb,var(--reader-accent) 24%,transparent);border-left:3px solid var(--reader-accent);border-radius:0 .8rem .8rem 0;color:var(--reader-ink);background:color-mix(in srgb,var(--reader-accent) 7%,transparent);font-size:calc(1.13rem * var(--reader-scale));font-style:italic}.book-content img{display:block;max-width:100%;height:auto;margin:2.8rem auto;border:1px solid var(--reader-line);border-radius:.9rem;background:#f8faf9;box-shadow:0 1.4rem 3.5rem #0003}.book-content pre{position:relative;margin:2rem 0;padding:1.35rem;overflow-x:auto;border:1px solid rgba(148,180,166,.16);border-radius:.85rem;color:#d9ede4;background:#08100e;box-shadow:0 1rem 2.5rem #0000002e;font:400 calc(.84rem * var(--reader-scale))/1.65 "SFMono-Regular",Consolas,monospace;cursor:copy}.book-content pre:after{content:"COPY";position:sticky;float:right;top:0;right:0;margin-top:-.65rem;color:#779087;font:700 .58rem var(--reader-sans);letter-spacing:.1em}.book-content code{padding:.12em .34em;border:1px solid color-mix(in srgb,var(--reader-accent) 16%,transparent);border-radius:.3rem;color:var(--reader-accent);background:color-mix(in srgb,var(--reader-accent) 7%,transparent);font:500 .86em SFMono-Regular,Consolas,monospace}.book-content pre code{padding:0;border:0;color:inherit;background:none;font-size:inherit}.book-table-scroll{width:100%;margin:2.2rem 0;overflow-x:auto;border:1px solid var(--reader-line);border-radius:.8rem}.book-content table{width:100%;min-width:35rem;border-collapse:collapse;background:var(--reader-panel);font:500 calc(.86rem * var(--reader-scale))/1.5 var(--reader-sans)}.book-content th,.book-content td{padding:.9rem 1rem;border-bottom:1px solid var(--reader-line);text-align:left;vertical-align:top}.book-content th{color:var(--reader-accent);background:color-mix(in srgb,var(--reader-accent) 7%,transparent);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase}.book-content tr:last-child td{border-bottom:0}.book-content .toc-container{margin:4rem 0;padding:1.6rem;border:1px solid var(--reader-line);border-radius:1rem;background:var(--reader-panel)}.book-content .toc-title{margin:0 0 1.5rem;font-size:calc(1.75rem * var(--reader-scale));text-align:left}.book-content .toc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem}.book-content .toc-part{padding:1rem;border:1px solid var(--reader-line);border-radius:.7rem;background:#80a0920a}.book-content .toc-part-title{margin-bottom:.7rem;color:var(--reader-accent);font:800 .68rem var(--reader-sans);letter-spacing:.08em;text-transform:uppercase}.book-content .toc-chapter-list{margin:0;padding:0;list-style:none}.book-content .toc-chapter-item{margin:0;padding:0}.book-content .toc-chapter-link{display:block;padding:.35rem 0;color:var(--reader-muted);font:500 .78rem/1.35 var(--reader-sans);text-decoration:none}.book-content .toc-chapter-link:hover{color:var(--reader-accent)}.copy-toast{position:fixed;z-index:200;right:1.5rem;bottom:1.5rem;display:flex;align-items:center;gap:.55rem;padding:.8rem 1rem;border:1px solid rgba(99,230,180,.25);border-radius:.7rem;color:#c9ffeb;background:#0b1e18;box-shadow:0 1rem 2.5rem #0000004d;font-size:.8rem;font-weight:700}.code-copy-hint{display:flex;align-items:center;justify-content:center;gap:.45rem;margin:3rem 0;color:var(--reader-muted);font-size:.7rem}.chapter-footer{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:6rem 0 4rem;padding-top:2rem;border-top:1px solid var(--reader-line)}.chapter-footer>button{display:flex;align-items:center;gap:.8rem;padding:1rem;border:1px solid var(--reader-line);border-radius:.8rem;text-align:left;color:var(--reader-ink);background:var(--reader-panel);cursor:pointer}.chapter-footer>button.next{justify-content:flex-end;text-align:right}.chapter-footer button:hover{border-color:color-mix(in srgb,var(--reader-accent) 38%,transparent)}.chapter-footer button span{display:grid;gap:.2rem;font:700 .8rem/1.35 var(--reader-sans)}.chapter-footer button small{color:var(--reader-accent);font-size:.63rem;letter-spacing:.08em;text-transform:uppercase}.reader-content-shell>section:last-child,.reader-content-shell>div:last-child{border-top-color:var(--reader-line)!important}.reader-drawer-scrim{display:none}@media(max-width:1100px){.reader-sidebar{transform:translate(-101%);z-index:160;width:min(22rem,88vw);transition:transform .22s ease;box-shadow:2rem 0 5rem #00000059}.reader-sidebar.is-open{transform:translate(0)}.reader-sidebar-head button{display:grid}.reader-drawer-scrim{position:fixed;z-index:155;inset:0;display:block;border:0;background:#0000009e;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}.reader-main{margin-left:0}.mobile-toc-button{display:grid}.book-hero,.learning-paths{width:min(67rem,calc(100% - 3rem))}}@media(max-width:760px){.reader-header{grid-template-columns:auto 1fr auto;height:3.9rem;padding:0 .75rem}.reader-home-link span,.reader-book-id small,.reader-font-control>svg{display:none}.reader-book-id span{font-size:.58rem;letter-spacing:.1em}.reader-font-control{gap:0;padding:0 .15rem}.reader-icon-button{width:2rem;min-height:2rem}.reader-toolbar{gap:.25rem}.book-hero{min-height:auto;grid-template-columns:1fr;width:calc(100% - 2rem);padding:4rem 0 5rem}.book-hero h1{font-size:clamp(2.8rem,15vw,4.2rem)}.book-cover-wrap{width:min(17rem,82%);margin-top:1rem}.book-meta-row{gap:1.1rem}.learning-paths{width:calc(100% - 2rem);margin-bottom:5rem}.learning-path-grid{grid-template-columns:1fr}.learning-path-card{min-height:12rem}.reader-content-shell{width:calc(100% - 2rem);padding-bottom:5rem}.book-content{font-size:calc(1.02rem * var(--reader-scale));line-height:1.78}.book-content h2{font-size:calc(1.9rem * var(--reader-scale))}.book-content h3{font-size:calc(1.25rem * var(--reader-scale))}.book-content .book-part-heading{margin-top:5.5rem}.book-content .book-chapter-heading{margin-top:5rem}.book-content blockquote{padding:1.2rem}.book-content pre{margin-left:-.35rem;margin-right:-.35rem;padding:1rem}.book-content .toc-grid,.chapter-footer{grid-template-columns:1fr}.chapter-footer>span{display:none}.reader-search-panel{top:4.35rem}}@media(prefers-reduced-motion:reduce){.book-reader *,.book-reader *:before,.book-reader *:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}.book-reader{--reader-bg: #0b1013;--reader-bg-soft: #11191d;--reader-panel: #11191d;--reader-panel-solid: #151e23;--reader-muted: #a9b8bf;background:var(--reader-bg)}.book-reader[data-reader-theme=paper]{--reader-bg: #fafaf7;--reader-bg-soft: #f1f2ed;--reader-panel: #fff;--reader-panel-solid: #f1f2ed;--reader-muted: #526058;background:var(--reader-bg)}.reader-header{position:fixed;inset:0 0 auto;height:76px;background:var(--reader-bg);border-bottom:1px solid var(--reader-line)}.reader-main{padding-top:76px}.reader-sidebar{top:76px;height:calc(100dvh - 76px);background:var(--reader-bg)}.reader-sidebar-head span,.reader-book-id small{font-size:.8125rem}.reader-sidebar-head h2{font-size:1.2rem}.reader-sidebar nav button{min-height:44px;font-size:.875rem;line-height:1.5;border-radius:5px}.reader-sidebar nav button.is-part{font-size:.8125rem;letter-spacing:.05em;margin-top:1rem}.reader-sidebar nav button.is-active{background:var(--reader-panel-solid);border-left:2px solid var(--reader-accent)}.reader-book-id>span{font-size:.8125rem}.reader-icon-button,.reader-font-control button{width:44px;min-height:44px;font-size:.9375rem}.reader-font-control button:disabled,.reader-chapter-bar button:disabled{opacity:.35;cursor:default}.reader-home-link{font-size:.875rem;min-height:44px}.book-hero{min-height:auto;padding-block:4.5rem 3rem;gap:3rem}.book-hero h1{font-weight:600;letter-spacing:-.055em;font-size:clamp(2.8rem,4.7vw,4.75rem)}.book-hero p{font-size:1.125rem;line-height:1.75}.book-kicker,.book-meta-row,.book-cover-wrap>span{font-size:.875rem}.book-cover-wrap{width:min(16rem,100%)}.book-cover-wrap img{transform:none;box-shadow:0 20px 40px #0003}.book-cover-glow{display:none}.learning-paths{margin-bottom:3.5rem}.learning-paths-heading span,.learning-path-card>span{font-size:.8125rem}.learning-paths-heading h2{font-size:1.75rem;font-weight:600}.learning-path-card{min-height:13rem;border-radius:6px}.learning-path-card p{font-size:1rem}.learning-path-card small{font-size:.875rem}.reader-content-shell{width:min(48rem,calc(100% - 4rem))}.reader-chapter-bar{position:sticky;top:76px;z-index:30;display:flex;align-items:center;gap:.5rem;padding:.5rem 0;background:var(--reader-bg);border-bottom:1px solid var(--reader-line);font-size:.875rem}.reader-chapter-bar>span{flex:1;font-weight:600;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.reader-chapter-bar button{width:44px;height:44px;color:var(--reader-accent);border:1px solid var(--reader-line);border-radius:5px;flex-shrink:0}.book-content{line-height:1.85;font-size:calc(1.125rem * var(--reader-scale))}.book-content h1,.book-content h2,.book-content h3,.book-content h4{scroll-margin-top:160px}.book-content h2{font-size:calc(1.8rem * var(--reader-scale));letter-spacing:-.035em}.book-content .book-chapter-heading{margin-top:5rem;font-size:calc(2.3rem * var(--reader-scale));font-weight:600}.book-content .book-chapter-heading:before{content:"THE PLAYBOOK";font-size:.8125rem}.book-content .book-part-heading{font-size:.875rem;margin-top:5rem}.book-content ul{list-style:disc}.book-content a{text-decoration:underline}.chapter-brief{margin:1.5rem 0 2.5rem;padding:1.25rem 1.5rem;background:var(--reader-panel);border:1px solid var(--reader-line);border-left:3px solid var(--reader-accent);border-radius:0 6px 6px 0;font:1rem/1.7 var(--reader-sans)}.chapter-brief p{margin-bottom:1rem}.chapter-brief p:last-child{margin-bottom:0}.chapter-brief strong{display:block;color:var(--reader-accent);font-size:.875rem;margin-bottom:.2rem}.book-code-block{position:relative;margin-block:2rem;padding-top:44px;background:#08100e;border:1px solid var(--reader-line);border-radius:6px;overflow:hidden}.book-content .book-code-block pre{margin:0;box-shadow:none;border:0;border-radius:0;cursor:text}.book-content pre:after{display:none}.book-copy-button{position:absolute;top:0;right:.5rem;min-height:44px;padding-inline:.75rem;color:#b2daca;font-size:.875rem}.book-copy-button:hover{color:#fff}.book-content th,.book-content td{font-size:1rem}.reader-search-panel{top:86px;z-index:180}.reader-search-results button>span{font-size:1rem}.reader-search-results small,.chapter-footer button small{font-size:.875rem}.chapter-footer button span{font-size:1rem}.code-copy-hint{font-size:.875rem}@media(max-width:1100px){.reader-sidebar{visibility:hidden}.reader-sidebar.is-open{visibility:visible}}@media(max-width:760px){.reader-header{grid-template-columns:auto 1fr;padding-inline:.5rem}.reader-book-id{display:none}.reader-toolbar{justify-self:end}.reader-icon-button,.reader-font-control button{width:40px;min-height:44px}.book-hero{padding-block:3rem}.book-hero h1{font-size:clamp(2.5rem,10vw,4rem)}.book-cover-wrap{display:none}.reader-content-shell{width:calc(100% - 2rem)}.book-content .book-chapter-heading{font-size:calc(1.8rem * var(--reader-scale))}.book-content h2{font-size:calc(1.5rem * var(--reader-scale))}.reader-chapter-bar{font-size:.8125rem}.chapter-brief{padding:1rem}}.book-content h5{color:var(--reader-ink);font:600 calc(1rem * var(--reader-scale))/1.4 var(--reader-display);margin:1.5rem 0 .75rem;scroll-margin-top:160px}
