:root{color-scheme:dark;--ink: #2b211e;--muted: #6f5e56;--paper: #f1e8d6;--paper-bright: #fbf6ea;--wine: #842f35;--coral: #b75f4d;--gold: #c89f52;--line: #cdbd9f;--night: var(--sk-color-canvas, #060812);--night-surface: var(--sk-color-surface, #101426);--night-line: var(--sk-color-line, rgba(154, 170, 225, .16));--serif: "Noto Serif SC", "Songti SC", "Times New Roman", serif;--sans: var(--sk-font-sans, Inter, "Noto Sans SC", system-ui, sans-serif);--mono: var(--sk-font-mono, "SFMono-Regular", Consolas, monospace)}*{box-sizing:border-box}html{background:var(--night);scroll-behavior:smooth}body{margin:0;color:var(--sk-color-text);background:var(--night);font:16px/1.82 var(--serif)}a{color:inherit}::selection{color:#fff;background:var(--wine)}.worldbook-site{position:relative;isolation:isolate;min-height:100dvh;overflow-x:clip}.worldbook-atmosphere{position:fixed;z-index:-1;inset:0;pointer-events:none;opacity:.72;background-image:radial-gradient(circle at 12% 18%,rgba(255,255,255,.68) 0 1px,transparent 1.5px),radial-gradient(circle at 73% 12%,rgba(140,124,255,.6) 0 1px,transparent 1.5px),radial-gradient(circle at 41% 77%,rgba(97,217,255,.58) 0 1px,transparent 1.5px),radial-gradient(circle at 88% 64%,rgba(255,204,122,.5) 0 1px,transparent 1.4px),radial-gradient(circle at 83% 0%,rgba(140,124,255,.13),transparent 34rem),radial-gradient(circle at 5% 40%,rgba(97,217,255,.07),transparent 30rem),linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:173px 173px,211px 211px,257px 257px,131px 131px,auto,auto,80px 80px,80px 80px}.page{width:min(var(--sk-container, 90rem),calc(100% - 2rem));margin-inline:auto}.masthead{position:relative;z-index:5;border-bottom:1px solid var(--night-line);background:linear-gradient(180deg,#101426db,#060812b8);backdrop-filter:blur(18px)}.masthead:after{position:absolute;right:8%;bottom:0;left:8%;height:1px;content:"";background:linear-gradient(90deg,transparent,rgba(200,159,82,.62),transparent)}.masthead-top{min-height:42px;display:flex;align-items:center;justify-content:space-between;color:var(--sk-color-dim);font:600 .6rem/1 var(--mono);letter-spacing:.16em;text-transform:uppercase}.masthead-top a{color:var(--sk-color-muted);text-decoration:none;transition:color .2s}.masthead-top a:hover{color:var(--sk-color-gold)}.title-row{padding:1.4rem 0 1.7rem;display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;border-top:1px solid var(--night-line)}.wordmark{text-decoration:none}.wordmark small{display:block;color:var(--gold);font:700 .62rem/1 var(--sans);letter-spacing:.22em;text-transform:uppercase}.wordmark strong{display:block;color:var(--sk-color-text);font:560 clamp(2.2rem,5vw,4.3rem)/.96 var(--serif);letter-spacing:-.045em;text-shadow:0 12px 40px rgba(0,0,0,.28)}.wordmark>span{display:block;margin-top:.45rem;color:var(--sk-color-dim);font:500 .7rem/1.2 var(--sans);letter-spacing:.12em}.book-nav{display:flex;align-items:center;gap:.35rem;font:650 .75rem/1 var(--sans)}.book-nav a{min-height:44px;display:inline-flex;align-items:center;padding:0 .9rem;border:1px solid transparent;border-radius:var(--sk-radius-control);color:var(--sk-color-muted);text-decoration:none;transition:color .2s,border-color .2s,background-color .2s,transform .2s}.book-nav a:hover,.book-nav a[aria-current=page]{color:var(--sk-color-text);border-color:color-mix(in srgb,var(--gold) 38%,transparent);background:color-mix(in srgb,var(--gold) 9%,transparent)}.book-nav a:active{transform:scale(.97)}.main{position:relative;z-index:1;min-height:calc(100vh - 290px);padding-block:clamp(1rem,3vw,2.75rem)}.editorial-footer{position:relative;z-index:1;padding:2rem 0;border-top:1px solid var(--night-line);color:var(--sk-color-dim);background:#060812b8;font:.75rem/1.6 var(--sans)}.footer-row{display:flex;justify-content:space-between;gap:2rem}.editorial-footer a{color:var(--sk-color-gold);text-decoration:none}.editorial-footer a:hover{color:var(--sk-color-text)}.worldbook-site :focus-visible{outline:2px solid var(--sk-color-cyan);outline-offset:4px}.kicker{margin:0 0 .8rem;color:var(--wine);font:700 .7rem/1 var(--sans);letter-spacing:.17em;text-transform:uppercase}.cover{min-height:650px;display:grid;grid-template-columns:.9fr 1.25fr;overflow:hidden;border:1px solid rgba(255,255,255,.12);border-radius:clamp(1.2rem,3vw,2rem);box-shadow:0 42px 120px #00000061,0 0 80px #8c7cff0f}.cover-copy{padding:clamp(3rem,8vw,8rem) clamp(1.5rem,6vw,5rem);display:flex;flex-direction:column;justify-content:space-between;color:var(--ink);background:var(--paper-bright)}.cover h1{max-width:9ch;margin:0;font:600 clamp(3.6rem,8vw,8rem)/.94 var(--serif);letter-spacing:-.07em}.cover h1 em{color:var(--wine);font-style:normal}.cover-intro{max-width:45ch;color:var(--muted)}.cover-map{position:relative;min-height:500px;overflow:hidden;background:radial-gradient(circle at 60% 42%,#33423c,#15201f 68%,#0c1315)}.cover-map:before{content:"";position:absolute;inset:7%;opacity:.8;background:radial-gradient(ellipse at 30% 35%,#d5b86f 0 9%,transparent 9.5%),radial-gradient(ellipse at 58% 50%,#d5b86f 0 13%,transparent 13.5%),radial-gradient(ellipse at 75% 26%,#d5b86f 0 7%,transparent 7.5%),radial-gradient(ellipse at 42% 73%,#d5b86f 0 10%,transparent 10.5%);filter:blur(2px);transform:rotate(-8deg)}.cover-map:after{content:"ATLAS · I–IV";position:absolute;right:2rem;bottom:1.5rem;color:#f4e6c7;font:600 .72rem var(--sans);letter-spacing:.2em}.cover-lines{position:absolute;inset:0;opacity:.22;background-image:repeating-radial-gradient(circle at 50% 50%,transparent 0 34px,#e6d095 35px 36px),linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:auto,64px 64px,64px 64px}.link-arrow{display:inline-flex;align-items:center;gap:.5rem;color:var(--wine);font:700 .78rem var(--sans);text-decoration:none}.link-arrow span{transition:transform .2s var(--sk-ease-emphasized)}.link-arrow:hover span{transform:translate(.3rem)}.volumes{margin-top:clamp(1rem,3vw,2rem);padding:clamp(3rem,7vw,6rem);color:var(--ink);border:1px solid rgba(255,255,255,.1);border-radius:clamp(1.2rem,3vw,2rem);background:var(--paper);box-shadow:0 32px 90px #00000042}.section-head{display:flex;align-items:end;justify-content:space-between;gap:2rem;margin-bottom:2rem}.section-head h2{margin:0;font:600 clamp(2.4rem,5vw,4.5rem)/1 var(--serif);letter-spacing:-.04em}.section-head p{max-width:48ch;margin:0;color:var(--muted)}.volume-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--line);gap:1px}.volume-card{min-height:390px;padding:1.4rem;display:flex;flex-direction:column;justify-content:space-between;background:var(--paper-bright);text-decoration:none;transition:background .25s,color .25s,transform .25s var(--sk-ease-emphasized),box-shadow .25s}.volume-card:hover{position:relative;z-index:1;color:#fff;background:var(--wine);box-shadow:0 18px 45px #43181c3d;transform:translateY(-4px)}.volume-card:active{transform:translateY(-1px) scale(.995)}.volume-meta{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}.content-status{display:inline-flex;min-height:1.8rem;align-items:center;padding:.3rem .55rem;border:1px solid color-mix(in srgb,var(--wine) 28%,var(--line));border-radius:999px;color:var(--wine);background:color-mix(in srgb,var(--paper-bright) 82%,transparent);font:700 .64rem/1 var(--sans);letter-spacing:.08em;white-space:nowrap}.volume-card:hover .content-status{color:#fff;border-color:#ffffff57;background:#ffffff1a}.roman{font:500 4.6rem/1 var(--serif);opacity:.25}.volume-card h3{margin:0 0 .6rem;font:600 1.4rem/1.2 var(--serif)}.volume-card p{margin:0;color:var(--muted);font-size:.88rem}.volume-card:hover p{color:#ebd8d0}.volume-card small{font:600 .68rem var(--sans);letter-spacing:.1em;text-transform:uppercase}.reader{display:grid;grid-template-columns:minmax(250px,280px) minmax(0,760px);justify-content:center;gap:clamp(2rem,6vw,6rem);padding:clamp(2rem,6vw,5.5rem);color:var(--ink);border:1px solid rgba(255,255,255,.1);border-radius:clamp(1.2rem,3vw,2rem);background:var(--paper);box-shadow:0 42px 120px #00000052}.reader--article{display:block}.reader--article .prose{width:min(100%,54rem);margin-inline:auto}.folio-nav{position:sticky;top:2rem;align-self:start;max-block-size:calc(100dvh - 4rem);overflow-y:auto;padding:1rem .65rem 1rem 0;border-top:4px solid var(--wine);scrollbar-gutter:stable;scrollbar-color:color-mix(in srgb,var(--wine) 42%,transparent) transparent;font:.78rem/1.5 var(--sans)}.folio-nav strong{display:block;margin-bottom:1rem;font-family:var(--serif);font-size:1.1rem}.folio-nav a{display:block;padding:.4rem 0;color:var(--muted);text-decoration:none;border-bottom:1px solid var(--line)}.folio-nav a:hover{color:var(--wine)}.chapter-toc{position:fixed;z-index:20;top:50%;right:clamp(.75rem,2vw,2rem);color:var(--ink);font:.76rem/1.45 var(--sans);transform:translateY(-50%)}.chapter-toc[open]:before{position:absolute;top:50%;right:100%;width:.85rem;height:4rem;content:"";transform:translateY(-50%)}.chapter-toc__trigger{min-width:52px;min-height:48px;display:inline-flex;align-items:center;justify-content:center;gap:.45rem;padding:.65rem .8rem;border:1px solid color-mix(in srgb,var(--sk-color-gold) 30%,var(--night-line));border-radius:999px;color:var(--sk-color-text);background:color-mix(in srgb,var(--night-surface) 90%,transparent);box-shadow:0 12px 36px #00000047;cursor:pointer;list-style:none;backdrop-filter:blur(16px);transition:color .2s,border-color .2s,background-color .2s,transform .2s}.chapter-toc__trigger::-webkit-details-marker{display:none}.chapter-toc__trigger::marker{content:""}.chapter-toc__trigger svg{fill:none;stroke:currentColor;stroke-linecap:round;stroke-width:1.7}.chapter-toc__trigger span{font-weight:700;letter-spacing:.08em}.chapter-toc__trigger:hover,.chapter-toc[open] .chapter-toc__trigger{color:var(--sk-color-gold);border-color:color-mix(in srgb,var(--sk-color-gold) 58%,transparent);background:color-mix(in srgb,var(--night-surface) 96%,transparent)}.chapter-toc__trigger:active{transform:scale(.96)}.chapter-toc__panel{position:absolute;top:50%;right:calc(100% + .8rem);width:min(22rem,calc(100vw - 7rem));max-height:min(70dvh,46rem);overflow:hidden;border:1px solid color-mix(in srgb,var(--line) 78%,transparent);border-radius:.85rem;background:color-mix(in srgb,var(--paper-bright) 96%,transparent);box-shadow:0 24px 70px #00000052;transform:translateY(-50%);transform-origin:right center;backdrop-filter:blur(18px);animation:chapter-toc-in .16s ease-out both}.chapter-toc__heading{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;padding:1rem 1rem .85rem;border-bottom:1px solid color-mix(in srgb,var(--line) 72%,transparent)}.chapter-toc__heading div{min-width:0}.chapter-toc__heading p{margin:0 0 .3rem;color:var(--ink);font:700 .78rem/1 var(--sans);letter-spacing:.12em}.chapter-toc__heading span{color:var(--muted);font:600 .64rem/1 var(--sans);white-space:nowrap}.chapter-toc__heading small{color:var(--muted);font:500 .58rem/1.4 var(--sans);text-align:right;white-space:nowrap}.chapter-toc__panel nav{max-height:calc(min(70dvh,46rem) - 4.2rem);overflow-y:auto;padding:.75rem;scrollbar-gutter:stable;scrollbar-color:color-mix(in srgb,var(--wine) 42%,transparent) transparent;overscroll-behavior:contain}.chapter-toc__list{margin:0;padding:0;list-style:none}.chapter-toc__list .chapter-toc__list{margin:.18rem 0 .42rem .45rem;padding-left:.8rem;border-left:1px solid color-mix(in srgb,var(--wine) 20%,var(--line))}.chapter-toc__list a{position:relative;min-height:36px;display:flex;align-items:center;padding:.42rem .5rem .42rem .65rem;border-radius:.35rem;color:var(--muted);line-height:1.35;text-decoration:none;transition:color .2s,background-color .2s}.chapter-toc__list--depth-1>li>a{color:var(--ink);font-weight:700}.chapter-toc__list--depth-2 a{font-size:.72rem}.chapter-toc__list a:hover{color:var(--wine);background:color-mix(in srgb,var(--wine) 7%,transparent)}.chapter-toc__list a[aria-current=location]{color:var(--wine);background:color-mix(in srgb,var(--wine) 9%,transparent)}.chapter-toc__list a[aria-current=location]:before{position:absolute;inset:.42rem auto .42rem 0;width:2px;content:"";background:var(--wine)}@keyframes chapter-toc-in{0%{opacity:0;transform:translate(.45rem,-50%) scale(.98)}to{opacity:1;transform:translateY(-50%) scale(1)}}.prose{min-width:0}.chapter-meta{display:flex;align-items:flex-end;justify-content:space-between;gap:1.5rem;margin-bottom:clamp(2.5rem,6vw,4.5rem);padding-bottom:1rem;border-bottom:1px solid var(--line);font-family:var(--sans)}.chapter-meta__context{min-width:0}.chapter-meta__context .kicker{margin-bottom:.6rem}.chapter-meta__context p:last-child{margin:0}.chapter-meta__context strong{display:block;color:var(--ink);font:600 1.05rem/1.35 var(--serif)}.chapter-meta__context span{display:block;margin-top:.25rem;color:var(--muted);font:500 .68rem/1.45 var(--sans)}.chapter-meta__actions{display:flex;flex:0 0 auto;flex-wrap:wrap;justify-content:flex-end;gap:.45rem}.chapter-meta__actions a{min-height:44px;display:inline-flex;align-items:center;padding:.6rem .8rem;border:1px solid color-mix(in srgb,var(--wine) 24%,var(--line));border-radius:999px;color:var(--wine);background:color-mix(in srgb,var(--paper-bright) 64%,transparent);font:700 .68rem/1 var(--sans);text-decoration:none;transition:color .2s,border-color .2s,background-color .2s,transform .2s}.chapter-meta__actions a:hover{color:#fff;border-color:var(--wine);background:var(--wine)}.chapter-meta__actions a:active{transform:scale(.97)}.prose h1{margin:0 0 1rem;font:600 clamp(3rem,7vw,6rem)/.98 var(--serif);letter-spacing:-.055em}.prose h2{margin-top:3.5rem;font:600 2rem/1.2 var(--serif)}.prose h3{margin-top:2.4rem;color:var(--wine);font:600 1.3rem var(--serif)}.prose p{max-width:70ch}.prose>.sk-docs-rendered>p:first-of-type{font-size:1.08rem}.prose>.sk-docs-rendered>p:first-of-type:first-letter{float:left;padding:.08em .08em 0 0;color:var(--wine);font:600 4.3rem/.76 var(--serif)}.prose .worldbook-chapter-lede{--status: var(--wine);display:block;margin:0 0 3rem;padding:clamp(1.2rem,4vw,2rem);border:1px solid color-mix(in srgb,var(--status) 52%,var(--line));border-top:4px solid var(--status);border-radius:.55rem;background:linear-gradient(135deg,color-mix(in srgb,var(--paper-bright) 94%,var(--status)),var(--paper-bright));box-shadow:0 16px 40px #482f2414}.prose .worldbook-chapter-lede--canon{--status: #235f63;--status-wash: #e3f0ec}.prose .worldbook-chapter-lede--derived{--status: #345b8c;--status-wash: #e8eef7}.prose .worldbook-chapter-lede--proposal{--status: #8a5a22;--status-wash: #f6ead7}.prose .worldbook-chapter-lede--unknown{--status: #6d526f;--status-wash: #eee6ef}.prose .worldbook-chapter-lede :where(p,ul):last-child{margin-bottom:0}.prose .worldbook-callout{--status: var(--wine);--status-wash: var(--paper-bright);display:block;margin:1.7rem 0;padding:1rem 1.15rem 1rem 1.3rem;border:1px solid color-mix(in srgb,var(--status) 28%,var(--line));border-left:4px solid var(--status);border-radius:.35rem;background:color-mix(in srgb,var(--status-wash) 76%,var(--paper-bright))}.prose .worldbook-callout--canon{--status: #235f63;--status-wash: #e3f0ec}.prose .worldbook-callout--derived{--status: #345b8c;--status-wash: #e8eef7}.prose .worldbook-callout--proposal{--status: #8a5a22;--status-wash: #f6ead7}.prose .worldbook-callout--unknown{--status: #6d526f;--status-wash: #eee6ef}.prose .worldbook-callout :where(p,ul):last-child{margin-bottom:0}.figure,.prose .sk-docs-rendered figure{margin:2.5rem 0;padding:clamp(1rem,4vw,2rem);border-block:1px solid var(--line);text-align:center}.prose .sk-docs-rendered figure:has(table){text-align:left}.prose .worldbook-table-region{max-inline-size:100%;overflow-x:auto;border-radius:.25rem;scrollbar-color:color-mix(in srgb,var(--wine) 45%,transparent) transparent}.prose .worldbook-table-region:focus-visible{outline:3px solid color-mix(in srgb,var(--wine) 48%,white);outline-offset:3px}.prose .sk-docs-rendered table{width:100%;min-width:38rem;border-collapse:collapse;color:var(--ink);background:var(--paper-bright);font:.82rem/1.55 var(--sans)}.prose .sk-docs-rendered :is(th,td){padding:.72rem .8rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.prose .sk-docs-rendered th{color:var(--paper-bright);background:var(--wine);font-weight:750}.prose .sk-docs-rendered tbody tr:nth-child(2n){background:color-mix(in srgb,var(--paper) 70%,white)}.prose .worldbook-visual-island{display:grid;max-inline-size:100%;margin:2rem 0;padding:clamp(.8rem,3vw,1.4rem);place-items:stretch;overflow-x:auto;border:1px solid color-mix(in srgb,var(--line) 72%,transparent);border-radius:.45rem;background:color-mix(in srgb,var(--paper-bright) 74%,transparent);scrollbar-color:color-mix(in srgb,var(--wine) 45%,transparent) transparent}.prose .worldbook-visual-island>:where(img,svg){display:block;max-inline-size:100%;block-size:auto}.prose .worldbook-visual-island>svg{width:min(100%,52rem)!important;min-width:36rem;height:auto!important;margin-inline:auto}.prose .sk-docs-rendered figcaption{margin-top:1rem;color:var(--muted);font:.7rem/1.5 var(--sans);letter-spacing:.02em}.prose .sk-docs-rendered :is(h2,h3,h4,h5,h6)[id]{scroll-margin-block-start:2rem}.prose .sk-docs-rendered math{color:var(--ink);font-size:1.02em}.prose .sk-docs-equation--block{margin:1.5rem 0 2rem;padding:1rem clamp(.75rem,3vw,1.5rem);border:1px solid color-mix(in srgb,var(--line) 76%,transparent);border-left:3px solid color-mix(in srgb,var(--wine) 78%,var(--line));background:color-mix(in srgb,var(--paper-bright) 72%,transparent);scrollbar-color:color-mix(in srgb,var(--wine) 50%,transparent) transparent}.prose .sk-docs-equation--block>math[display=block]{margin-block:0}.prose .sk-docs-footnote-ref{line-height:0;scroll-margin-block-start:2rem}.prose .sk-docs-footnote-link{color:var(--wine);font:750 .68em/1 var(--sans);text-decoration:none}.prose .sk-docs-footnote-link:hover{text-decoration:underline;text-underline-offset:.18em}.prose .sk-docs-footnotes{margin-top:4.5rem;padding-top:1.5rem;border-top:1px solid var(--line);font:.82rem/1.65 var(--sans)}.prose .sk-docs-footnotes-title{margin:0 0 1rem;color:var(--ink);font:600 1.15rem/1.3 var(--serif)}.prose .sk-docs-footnote-list{display:grid;gap:.85rem;margin:0;padding-left:1.5rem}.prose .sk-docs-footnote-item{padding-left:.35rem;color:var(--muted);scroll-margin-block-start:2rem}.prose .sk-docs-footnote-content>:first-child{margin-top:0}.prose .sk-docs-footnote-content>:last-child{margin-bottom:0}.prose .sk-docs-footnote-backlinks{display:inline-flex;gap:.35rem;margin-left:.45rem}.prose .sk-docs-footnote-backref{min-width:1.5rem;min-height:1.5rem;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;color:var(--wine);background:color-mix(in srgb,var(--wine) 8%,transparent);font:700 .72rem/1 var(--sans);text-decoration:none}.prose :is(.sk-docs-footnote-ref,.sk-docs-footnote-item,.sk-docs-sidenote):target{border-radius:.2rem;background:color-mix(in srgb,var(--gold) 22%,transparent)}.prose .sk-docs-sidenote{color:var(--muted);border-left:2px solid color-mix(in srgb,var(--wine) 44%,var(--line));font:.75rem/1.55 var(--sans);text-align:left;scroll-margin-block-start:2rem}.prose .sk-docs-sidenote-number{float:inline-start;margin-right:.45rem;color:var(--wine);font-weight:800}.prose .sk-docs-sidenote-content>:first-child{margin-top:0}.prose .sk-docs-sidenote-content>:last-child{margin-bottom:0}.flow{display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem}.flow span{padding:.6rem .8rem;border:1px solid var(--line);background:var(--paper-bright)}.flow i{align-self:center;color:var(--coral);font-style:normal}.caption{margin:1rem 0 0;color:var(--muted);font:.7rem var(--sans)}.note{margin:2rem 0;padding:1.2rem 1.4rem;border-left:3px solid var(--gold);background:var(--paper-bright)}.chapter-list{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:2rem 0;border:1px solid var(--line);background:var(--line)}.chapter-list article{padding:1.2rem;background:var(--paper-bright)}.chapter-list article[data-status=published]{box-shadow:inset 3px 0 0 var(--wine)}.chapter-list article small{display:block;margin-bottom:.65rem;color:var(--muted);font:700 .62rem/1 var(--sans);letter-spacing:.1em;text-transform:uppercase}.chapter-list b{display:block;color:var(--wine);font:600 1.1rem var(--serif)}.chapter-list span{display:block;margin-top:.45rem;color:var(--muted)}.chapter-link{display:inline-flex;margin-top:1rem;color:var(--wine);font:700 .72rem/1 var(--sans);text-decoration:none}.volume-heading{display:flex;align-items:baseline;justify-content:space-between;gap:1rem}.volume-heading h2{margin-bottom:0}.volume-section{scroll-margin-top:2rem}.volume-section+.volume-section{margin-top:4rem;padding-top:.5rem;border-top:1px solid var(--line)}.download-list{display:grid;gap:.8rem}.download-item{padding:1.1rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;border:1px solid var(--line);background:var(--paper-bright)}.download-item small{display:block;color:var(--muted);font-family:var(--sans)}.button{display:inline-flex;padding:.55rem .9rem;border:1px solid var(--wine);color:var(--wine);font:700 .74rem var(--sans);text-decoration:none}.button{min-height:44px;align-items:center;justify-content:center;transition:color .2s,background-color .2s,transform .2s}.button:hover{color:#fff;background:var(--wine)}.button:active{transform:scale(.97)}@media(max-width:900px){.volume-grid{grid-template-columns:1fr 1fr}.cover{grid-template-columns:1fr}.cover-map{min-height:340px}}@media(min-width:80rem){.reader--article .prose:has(.sk-docs-sidenote){width:min(100%,75rem);padding-inline-end:clamp(16rem,22vw,20rem);--sk-docs-sidenote-width: clamp(14rem, 18vw, 18rem);--sk-docs-sidenote-offset: clamp(16rem, 20vw, 20rem)}}@media(max-width:680px){.page{width:min(100% - 1rem,var(--sk-container, 90rem))}.masthead-top{display:none}.title-row{align-items:flex-start;flex-direction:column;padding-block:1.2rem}.book-nav{width:100%;flex-wrap:wrap}.book-nav a{flex:1 1 auto;justify-content:center}.main{padding-block:.5rem 1rem}.cover{border-radius:1rem}.cover-copy{min-height:510px}.volumes{padding:2.5rem 1rem;border-radius:1rem}.volume-grid,.chapter-list{grid-template-columns:1fr}.volume-heading{align-items:flex-start;flex-direction:column}.reader{grid-template-columns:1fr;padding:2.5rem 1.1rem 3.5rem;border-radius:1rem}.reader--article{padding-top:1.35rem}.prose .worldbook-chapter-lede{margin-bottom:2.2rem;padding:1.1rem}.prose .worldbook-callout{padding-inline:1rem .9rem}.prose .sk-docs-rendered table{min-width:34rem}.folio-nav{position:static;max-block-size:none;overflow:visible;padding-right:0}.chapter-meta{align-items:stretch;flex-direction:column;gap:1rem;margin-bottom:2.8rem}.chapter-meta__actions{justify-content:flex-start}.chapter-meta__actions a{flex:1 1 auto;justify-content:center}.chapter-toc{top:auto;right:max(.75rem,env(safe-area-inset-right));bottom:max(.75rem,env(safe-area-inset-bottom));transform:none}.chapter-toc__trigger{min-width:56px;min-height:48px}.chapter-toc__panel{top:auto;right:0;bottom:calc(100% + .65rem);width:min(23rem,calc(100vw - 1.5rem));max-height:min(68dvh,38rem);transform:none;transform-origin:right bottom;animation-name:chapter-toc-in-mobile}.chapter-toc[open]:before{display:none}.chapter-toc__heading small{display:none}.chapter-toc__panel nav{max-height:calc(min(68dvh,38rem) - 4.2rem)}.chapter-toc__list a{min-height:44px;padding-block:.55rem}.section-head,.footer-row{align-items:flex-start;flex-direction:column}}@media(hover:none),(pointer:coarse){.chapter-toc__heading small{display:none}}@keyframes chapter-toc-in-mobile{0%{opacity:0;transform:translateY(.45rem) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.worldbook-site *,.worldbook-site *:before,.worldbook-site *:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}:root{--sk-color-canvas: #060812;--sk-color-surface: #101426;--sk-color-surface-strong: #0a0d1c;--sk-color-line: rgba(154, 170, 225, .16);--sk-color-text: #f5f7ff;--sk-color-muted: #b7bdd2;--sk-color-dim: #69728f;--sk-color-cyan: #61d9ff;--sk-color-violet: #8c7cff;--sk-color-magenta: #ff7bcb;--sk-color-gold: #ffcc7a;--sk-color-positive: #79f0cb;--sk-font-sans: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;--sk-font-display: "Iowan Old Style", "Noto Serif SC", "Songti SC", STSong, serif;--sk-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;--sk-radius-control: .8rem;--sk-radius-panel: 1.5rem;--sk-ease-emphasized: cubic-bezier(.16, 1, .3, 1);--sk-shadow-panel: 0 32px 100px rgba(2, 4, 18, .6), 0 0 60px rgba(97, 217, 255, .08);--sk-container: 90rem}.sk-docs-rendered{overflow-wrap:anywhere}.sk-docs-rendered :where(.sk-docs-equation--block,.sk-docs-code--block,.sk-docs-table-scroll){max-inline-size:100%;overflow-x:auto;overscroll-behavior-inline:contain}.sk-docs-rendered>math[display=block]{max-inline-size:100%;overflow-x:auto;overflow-y:hidden;overscroll-behavior-inline:contain}.sk-docs-rendered :where(.sk-docs-equation--block math,pre,table){max-inline-size:100%}.sk-docs-rendered :where(pre,code,math){overflow-wrap:normal;word-break:normal}.sk-docs-rendered :where(img,svg){block-size:auto;max-inline-size:100%}.sk-docs-rendered :where(.sk-docs-heading__anchor,.sk-docs-footnote-ref a,.sk-docs-footnote-backref):focus-visible{outline:2px solid currentColor;outline-offset:.2em}.sk-docs-rendered[data-toc=off] .sk-docs-outline,.sk-docs-rendered[data-heading-links=off] .sk-docs-heading__anchor,.sk-docs-rendered[data-footnotes=off] :where(.sk-docs-footnote-ref,.sk-docs-sidenote,.sk-docs-footnotes){display:none!important}.sk-docs-rendered--embed>:first-child,.sk-docs-rendered--excerpt>:first-child{margin-block-start:0}.sk-docs-rendered--embed>:last-child,.sk-docs-rendered--excerpt>:last-child{margin-block-end:0}.sk-docs-sidenote,.sk-docs-footnote-link--sidenote{display:none}@media(min-width:80rem){.sk-docs-rendered[data-footnote-layout=sidenotes] .sk-docs-footnotes,.sk-docs-rendered[data-footnote-layout=sidenotes] .sk-docs-footnote-link--endnote{display:none}.sk-docs-rendered[data-footnote-layout=sidenotes] .sk-docs-footnote-link--sidenote{display:inline}.sk-docs-rendered[data-footnote-layout=sidenotes] .sk-docs-sidenote{display:inline;float:inline-end;clear:inline-end;inline-size:min(18rem,var(--sk-docs-sidenote-width, 30%));margin-inline-end:calc(-1*min(20rem,var(--sk-docs-sidenote-offset, 32%)))}}@media(prefers-reduced-motion:reduce){.sk-docs-rendered{scroll-behavior:auto}}@layer skopunarverk-ui{.sk-shell{min-height:100dvh;color:var(--sk-color-text);background:var(--sk-color-canvas)}.sk-container{width:min(100% - 2rem,var(--sk-container));margin-inline:auto}.sk-header{position:relative;z-index:50;color:var(--sk-color-text);border-bottom:1px solid var(--sk-color-line);background:color-mix(in srgb,var(--sk-color-canvas) 76%,transparent);box-shadow:0 1px #ffffff04;backdrop-filter:blur(24px) saturate(125%)}.sk-header__inner,.sk-footer__inner{display:flex;align-items:center;justify-content:space-between;gap:1.25rem;min-height:4.75rem}.sk-brand{display:inline-flex;align-items:center;gap:.75rem;color:inherit;text-decoration:none}.sk-brand__mark{position:relative;display:grid;width:2rem;aspect-ratio:1;place-items:center;border:1px solid color-mix(in srgb,var(--sk-color-violet) 55%,transparent);border-radius:50%;box-shadow:0 0 18px color-mix(in srgb,var(--sk-color-violet) 12%,transparent);transition:rotate .35s var(--sk-ease-emphasized),border-color .22s,box-shadow .22s}.sk-brand__mark:before,.sk-brand__mark:after{position:absolute;content:"";border-radius:50%}.sk-brand__mark:before{inset:.32rem;border:1px solid color-mix(in srgb,var(--sk-color-cyan) 45%,transparent)}.sk-brand__mark:after{width:.22rem;aspect-ratio:1;background:var(--sk-color-text);box-shadow:0 -.72rem 0 var(--sk-color-violet),0 0 10px var(--sk-color-cyan)}.sk-brand:hover .sk-brand__mark{rotate:24deg;border-color:var(--sk-color-cyan);box-shadow:0 0 24px color-mix(in srgb,var(--sk-color-cyan) 18%,transparent)}.sk-brand__copy{display:grid;gap:.28rem}.sk-brand__name{display:block;font:650 .76rem/1 var(--sk-font-sans);letter-spacing:.18em}.sk-brand__tagline{color:var(--sk-color-muted);font:600 .625rem/1 var(--sk-font-mono);letter-spacing:.2em}.sk-product-nav{display:flex;align-items:center;gap:.25rem}.sk-product-nav a,.sk-link,.sk-button{border-radius:var(--sk-radius-control);color:var(--sk-color-muted);font:600 .75rem/1 var(--sk-font-sans);text-decoration:none;transition:color .16s,background-color .16s,border-color .16s,transform .16s}.sk-product-nav a{padding:.72rem .9rem;border:1px solid transparent}.sk-product-nav a[aria-current=page],.sk-product-nav a:hover{color:var(--sk-color-text);background:color-mix(in srgb,var(--sk-color-cyan) 9%,transparent)}.sk-product-nav a[aria-current=page]{border-color:color-mix(in srgb,var(--sk-color-cyan) 18%,transparent)}.sk-button{display:inline-flex;min-height:2.75rem;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1rem;border:1px solid var(--sk-color-line);background:color-mix(in srgb,var(--sk-color-surface) 72%,transparent)}.sk-button:hover{color:var(--sk-color-text);transform:translateY(-1px)}.sk-badge{display:inline-flex;align-items:center;width:max-content;padding:.4rem .65rem;border:1px solid var(--sk-color-line);border-radius:999px;color:var(--sk-badge-color, var(--sk-color-muted));background:color-mix(in srgb,var(--sk-color-surface) 60%,transparent);font:600 .64rem/1 var(--sk-font-mono);letter-spacing:.08em}.sk-skip-link{position:fixed;z-index:100;inset:.75rem auto auto .75rem;padding:.75rem 1rem;color:var(--sk-color-canvas);background:var(--sk-color-cyan);border-radius:var(--sk-radius-control);transform:translateY(-180%)}.sk-skip-link:focus{transform:translateY(0)}.sk-footer{border-top:1px solid var(--sk-color-line);color:var(--sk-color-muted);background:color-mix(in srgb,var(--sk-color-canvas) 94%,black)}.sk-footer__inner{min-height:7.5rem}.sk-footer__identity,.sk-footer__meta{display:grid;gap:.55rem}.sk-footer__identity strong{color:var(--sk-color-text);font:650 .76rem/1 var(--sk-font-sans);letter-spacing:.18em}.sk-footer__identity span{color:var(--sk-color-muted);font:400 .78rem/1.5 var(--sk-font-sans)}.sk-footer__meta{justify-items:end;color:var(--sk-color-muted);font:600 .625rem/1 var(--sk-font-mono);letter-spacing:.14em}.sk-visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:where(.sk-shell) :focus-visible{outline:2px solid var(--sk-color-cyan);outline-offset:4px}@media(max-width:48rem){.sk-header__inner{align-items:flex-start;flex-direction:column;padding-block:1rem}.sk-product-nav{width:100%;overflow-x:auto;padding-bottom:.25rem}.sk-footer__inner{align-items:flex-start;flex-direction:column;justify-content:center;padding-block:2rem}.sk-footer__meta{justify-items:start}}@media(prefers-reduced-motion:reduce){.sk-product-nav a,.sk-link,.sk-button,.sk-skip-link{transition-duration:.01ms}}}