.spread{position:relative;display:grid;grid-template-columns:var(--page-w) var(--page-w);gap:0;height:var(--page-h);margin:auto;overflow:hidden;border-radius:4px;background:#e9e1d3}
.book-page{position:relative;height:var(--page-h);padding:clamp(34px,4vh,52px) clamp(34px,3.3vw,52px) 42px;overflow:hidden;color:var(--paper-ink);background:linear-gradient(90deg,rgba(148,126,92,.08),transparent 7%,transparent 94%,rgba(111,91,67,.10)),radial-gradient(circle at 50% 14%,rgba(255,255,255,.62),transparent 30%),var(--paper);font:400 clamp(13px,1.02vw,16px)/1.56 Georgia,'Times New Roman',serif;text-shadow:0 1px 0 rgba(255,255,255,.45)}
.book-page.left{border-right:1px solid rgba(97,78,53,.25);box-shadow:inset -18px 0 26px -24px rgba(0,0,0,.55)}
.book-page.right{box-shadow:inset 18px 0 26px -24px rgba(0,0,0,.55)}
.book-page.empty{background:linear-gradient(90deg,rgba(148,126,92,.08),transparent 7%,transparent 94%,rgba(111,91,67,.10)),var(--paper)}
.page-content{height:100%;overflow:hidden}.page-content .article-header{text-align:center;margin:0}
.page-content .article-issue{font:700 10px/1.3 Arial,sans-serif;letter-spacing:.18em;text-transform:uppercase;color:#7b6e5c;margin:0 0 12px}
.page-content h1{font:500 clamp(23px,2.5vw,36px)/1.05 Georgia,serif;color:#28221c;margin:0 0 14px}
.page-content .subtitle{font-style:italic;font-size:1.02em;line-height:1.45;color:#62574b;margin:0 0 18px}
.page-content .article-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:20px 0 0;font:600 9px/1.35 Arial,sans-serif;text-transform:uppercase;letter-spacing:.08em;color:#6f6252}
.page-content .article-meta dt,.page-content .article-meta dd{margin:0}.page-content .article-meta dd{margin-top:3px;font-weight:400;text-transform:none;letter-spacing:0;font-size:11px}
.page-content h2{font:600 clamp(17px,1.6vw,23px)/1.18 Georgia,serif;color:#2c261f;margin:0 0 14px;padding-bottom:8px;border-bottom:1px solid rgba(96,78,56,.2)}
.page-content h3{font:600 clamp(15px,1.3vw,19px)/1.22 Georgia,serif;color:#3a3128;margin:4px 0 12px}
.page-content p{margin:0 0 .82em}.page-content strong{font-weight:700;color:#252019}.page-content em{font-style:italic}.page-content a{color:#715727;text-decoration:none;border-bottom:1px dotted rgba(113,87,39,.5)}
.page-content ol{margin:0;padding-left:1.3em}.page-content li{margin:0 0 .72em}.page-content .article-references{font-size:.89em;line-height:1.44}
.page-number{position:absolute;left:0;right:0;bottom:16px;text-align:center;font:600 9px/1 Arial,sans-serif;letter-spacing:.14em;color:#8d7d68}
.page-nav{position:absolute;z-index:9;top:50%;width:42px;height:42px;padding:0;display:grid;place-items:center;transform:translateY(-50%);font-size:22px;line-height:1}
.page-nav.prev{left:-58px}.page-nav.next{right:-58px}.page-nav[disabled]{opacity:.28;cursor:default}
.reader-progress{margin:12px auto 0;text-align:center;color:#3a342d;font:700 10px/1 Arial,sans-serif;letter-spacing:.12em;text-transform:uppercase;text-shadow:0 1px 0 rgba(255,255,255,.5)}
.measure-page{position:fixed;visibility:hidden;pointer-events:none;left:-200vw;top:0;width:var(--page-w);height:var(--page-h);padding:clamp(34px,4vh,52px) clamp(34px,3.3vw,52px) 42px;overflow:hidden;font:400 clamp(13px,1.02vw,16px)/1.56 Georgia,'Times New Roman',serif}
.turning-forward .right .page-content{animation:turnForward .28s ease}.turning-back .left .page-content{animation:turnBack .28s ease}
@keyframes turnForward{0%{opacity:1;transform:perspective(800px) rotateY(0)}50%{opacity:.12;transform:perspective(800px) rotateY(-17deg)}100%{opacity:1;transform:none}}
@keyframes turnBack{0%{opacity:1;transform:perspective(800px) rotateY(0)}50%{opacity:.12;transform:perspective(800px) rotateY(17deg)}100%{opacity:1;transform:none}}
.load-error{padding:30px;color:#5d241d;background:#f0dfd5;border:1px solid #bb8d75;font:16px/1.5 Georgia,serif}
@media(max-width:820px){:root{--page-w:min(88vw,560px);--page-h:min(72vh,720px)}.reader-stage{padding-left:12px;padding-right:12px;background-position:center 41%;background-size:auto 175%}.closed-book{width:min(480px,82vw)}.book-reader{width:94vw}.book-toolbar{width:92vw}.book-open{width:calc(var(--page-w) + 42px);padding:21px}.spread{grid-template-columns:var(--page-w);width:var(--page-w)}.book-page.left{display:none}.book-page.right{grid-column:1}.book-open:before{display:none}.page-nav.prev{left:-7px}.page-nav.next{right:-7px}.reader-title{font-size:9px}}
@media(max-width:560px){:root{--page-h:67vh}.reader-stage{min-height:calc(100vh - 88px);padding-top:20px}.reader-note{top:8px;font-size:9px}.closed-book{width:min(420px,88vw)}.book-reader{top:51%}.book-toolbar{margin-bottom:6px}.book-toolbar button{min-height:34px;padding:0 11px;font-size:9px}.book-open{padding:14px;width:calc(var(--page-w) + 28px);height:calc(var(--page-h) + 28px)}.book-page{padding:30px 30px 38px;font-size:13px}.page-nav{width:38px;height:38px}.page-content h1{font-size:25px}}