:root{--reader-top:24px}main.reader-container{width:min(1460px,100% - 96px)}.topic-reader-layout{grid-template-columns:285px minmax(0,1fr);align-items:start;gap:32px;padding:28px 0 64px;display:grid}.topic-reader-content{min-width:0}.topic-reader-content .article-header{padding-top:0}.topic-reader-content .article-header h1{text-wrap:balance;font-size:clamp(2.2rem,3.5vw,3.7rem)}.topic-reader-sidebar{top:var(--reader-top);align-self:start;min-width:0;position:sticky}.topic-reader-sidebar .button{color:var(--ink);background:var(--surface);transition:border-color var(--motion-ui)}.topic-reader-sidebar .button:hover{color:var(--ink);background:var(--background-secondary);border-color:var(--accent)}.topic-sidebar-navigation{max-height:calc(100dvh - var(--reader-top) - 24px);overscroll-behavior:contain;scrollbar-width:thin;flex:1;min-height:0;padding:0 12px 24px 0;overflow-y:auto}.topic-sidebar-panel{max-height:calc(100dvh - var(--reader-top) - 24px);flex-direction:column;min-height:0;display:flex}.reader-topic-title{font-family:var(--font-display);margin:0 12px 12px;font-size:1.1rem;font-weight:600}.reader-sidebar-heading>.meta,.reader-all-topics{margin:0 12px 18px;display:block}.reader-all-topics{font-size:.85rem}.reader-sections,.reader-articles{margin:0;padding:0;list-style:none}.reader-chapter{position:relative}.reader-chapter>.book-section-link{padding-right:46px}.reader-chapter .number{color:var(--editorial-gold)}.topic-reader-sidebar .reader-section-disclosure>summary{cursor:pointer;place-items:center;width:44px;height:44px;list-style:none;display:grid;position:absolute;top:0;right:0}.reader-section-disclosure>summary::-webkit-details-marker{display:none}.topic-reader-sidebar .reader-section-disclosure[open]>summary span{transform:rotate(90deg)}.reader-articles{border-left:1px solid var(--line);margin:0 0 16px 18px}.topic-article-link{min-height:44px;color:var(--muted);border-left:3px solid #0000;padding:10px 12px;font-size:.82rem;line-height:1.6;display:block}.topic-article-link[aria-current=page]{background:var(--background-secondary);border-left-color:var(--editorial-gold);color:var(--ink);font-weight:600}.topic-article-link:hover,.reader-section-disclosure>summary:hover{background:var(--background-secondary);color:var(--ink)}.topic-navigation-drawer{color:var(--ink);background:var(--paper);border:1px solid var(--border-default);padding:20px}.topic-navigation-drawer::backdrop{background:#0000008c}.close-topic{align-items:center;gap:16px;margin:0 0 24px auto;display:flex}.reader-toc{grid-area:1/2;margin-top:0;font-size:.82rem}.reader-toc summary{cursor:pointer;min-height:44px;padding:10px 0;font-weight:600}.reader-toc a{min-height:40px;color:var(--muted);border-left:2px solid #0000;padding:8px 12px;line-height:1.5;display:block}.reader-toc a[aria-current=location]{border-left-color:var(--editorial-gold);color:var(--ink);font-weight:600}.reader-toc a:hover{background:var(--background-secondary)}.reader-toc .toc-subheading{padding-left:24px}.topic-reader-layout:has(.reader-toc) .topic-reader-content{grid-area:2/2}.topic-reader-layout:has(.reader-toc) .topic-reader-sidebar{grid-row:1/span 2}.article-previous-next{border-top:1px solid var(--line);grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:48px;padding-top:24px;display:grid}.article-previous-next a{gap:12px;text-decoration:none;display:grid}.article-previous-next strong{font-size:1rem;line-height:1.6}.reader-breadcrumb{overflow-wrap:anywhere}@media (width>=1400px){.topic-reader-layout:has(.reader-toc){grid-template-columns:285px minmax(0,1fr) 210px}.topic-reader-layout:has(.reader-toc) .topic-reader-content,.topic-reader-layout:has(.reader-toc) .topic-reader-sidebar{grid-row:1}.reader-toc{top:var(--reader-top);max-height:calc(100dvh - var(--reader-top) - 24px);scrollbar-width:thin;grid-column:3;position:sticky;overflow-y:auto}}@media (width<=1000px){main.reader-container{width:calc(100% - 40px)}.topic-reader-layout{flex-direction:column;gap:24px;display:flex}.topic-reader-sidebar{width:100%;position:static}.browse-topic,.topic-reader-content{width:100%}.reader-toc{order:0;width:100%}.topic-reader-layout .topic-reader-content{order:1}.topic-navigation-drawer{width:min(390px,100vw);max-width:100vw;height:100dvh;max-height:100dvh;margin:0}.topic-navigation-drawer[open]{flex-direction:column;display:flex}.topic-navigation-drawer .topic-sidebar-navigation,.topic-navigation-drawer .topic-sidebar-panel{flex:1;min-height:0;max-height:none}}@media (width<=600px){.article-previous-next{grid-template-columns:1fr}}