/* Article columns: long-form reading within the Society visual identity. */
.column-previews{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:var(--gutter)}
.column-preview{display:flex;flex-direction:column;min-width:0;border-top:var(--rule);border-bottom:var(--hair);padding:24px 0}
.column-preview-meta,.column-preview-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.75rem;color:var(--ink-70)}
.column-preview-meta>span:first-child{color:var(--red);font-weight:700}
.column-preview h3{font-size:clamp(1.5rem,2.5vw,2rem);line-height:1.4;font-weight:900;margin:18px 0}
.column-preview p{font-size:.92rem;line-height:1.85;color:var(--ink-70);max-width:75ch}
.column-preview-bottom{margin-top:auto;padding-top:22px}.column-preview-bottom>span:last-child{color:var(--red);font-weight:700}
.column-preview:hover h3{color:var(--red)}
.column-preview:only-child{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:12px var(--gutter)}
.column-preview:only-child .column-preview-meta{grid-column:1/-1}.column-preview:only-child h3{margin:8px 0;grid-column:1}.column-preview:only-child p{grid-column:2;grid-row:2}.column-preview:only-child .column-preview-bottom{grid-column:1/-1}
.column-empty{color:var(--ink-70);padding:20px 0}
.article-meta{display:flex;flex-wrap:wrap;gap:12px 22px;font-size:.78rem;color:var(--ink-70);line-height:1.7}
.column-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.column-nav a{border:var(--rule);padding:8px 14px;font-size:.82rem}.column-nav a span{color:var(--red);margin-left:14px}.column-nav a:hover{background:var(--ink);color:var(--paper)}
.column-list{max-width:1180px!important}.column-entry{display:grid;grid-template-columns:150px minmax(0,1fr);gap:var(--gutter);padding:30px 0;border-top:var(--rule)}.column-entry:last-child{border-bottom:var(--rule)}
.entry-column{font-size:.8rem;color:var(--red);padding-top:8px}.column-entry h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:900;line-height:1.4;margin-bottom:12px}.column-entry h2 a:hover{color:var(--red)}.column-entry p{font-size:.94rem;line-height:1.85;max-width:75ch;color:var(--ink-70);margin-top:16px}
.article-heading{padding:116px 0 36px}.article-heading .shell{max-width:1180px}.article-heading h1{font-size:clamp(2rem,4.5vw,3.8rem);font-weight:900;line-height:1.3;letter-spacing:-.015em;margin:24px 0;max-width:24ch}
.article-layout{max-width:1180px!important;display:grid;grid-template-columns:minmax(0,760px) minmax(200px,260px);gap:clamp(28px,5vw,72px);align-items:start;padding-top:32px;padding-bottom:48px;border-top:var(--rule)}
.article-body{min-width:0;font-size:clamp(1rem,1.05vw,1.1rem);line-height:1.95;overflow-wrap:anywhere}
.article-body p{margin:0 0 1.5em}.article-body h2{font-size:clamp(1.35rem,2vw,1.7rem);line-height:1.45;font-weight:900;border-top:var(--hair);padding-top:24px;margin:42px 0 20px}.article-body h3{font-size:1.18rem;line-height:1.5;margin:32px 0 16px;font-weight:800}.article-body h4,.article-body h5,.article-body h6{font-size:1.05rem;margin:24px 0 12px;line-height:1.5}
.article-body [id]{scroll-margin-top:90px}.article-body strong{font-weight:800}.article-body a{border-bottom:1px solid var(--red)}.article-body a:hover{color:var(--red)}.article-body ul,.article-body ol{padding-left:1.6em;margin-bottom:1.5em}.article-body li+li{margin-top:.5em}.article-body blockquote{margin:24px 0;border-left:3px solid var(--red);padding:14px 22px;background:var(--paper-2);color:var(--ink-70)}.article-body blockquote p:last-child{margin-bottom:0}.article-body pre{overflow-x:auto;white-space:pre;padding:20px;background:var(--paper-2);border:var(--hair);margin:24px 0;line-height:1.65}.article-body code{font-family:var(--f-mono);font-size:.85em;background:var(--paper-2);padding:2px 4px}.article-body pre code{padding:0}.article-body img{max-width:100%;height:auto;display:block;margin:24px auto}.article-body hr{border:0;border-top:var(--rule);margin:32px 0}.article-body table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:.88rem;margin:24px 0}.article-body th,.article-body td{border-bottom:var(--hair);padding:10px 14px;text-align:left}.article-body th{border-bottom:var(--rule)}.article-body .footnote{font-size:.82rem;border-top:var(--rule);padding-top:20px;margin-top:40px}
.article-toc{position:sticky;top:84px;font-size:.8rem;border-top:var(--rule);padding-top:16px}.article-toc details>summary{font-weight:800;cursor:pointer;margin-bottom:16px}.article-toc .toc{max-height:calc(100vh - 160px);overflow-y:auto;padding-right:10px}.article-toc ul{list-style:none;margin:0;padding:0}.article-toc ul ul{padding-left:16px;border-left:var(--hair);margin:8px 0}.article-toc li{margin:0 0 12px;line-height:1.7}.article-toc a{color:var(--ink-70)}.article-toc a:hover{color:var(--red)}
.article-end{max-width:1180px!important;border-top:var(--rule);padding-top:24px;padding-bottom:42px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:22px;font-size:.85rem}.article-end>a{color:var(--red);font-weight:700}.article-end nav{display:flex;flex-wrap:wrap;gap:20px}.article-end nav a{border-bottom:var(--hair)}
.article-footer{border-top:var(--rule);padding:32px 0 40px;background:var(--ink);color:var(--paper)}.article-footer .shell{display:flex;justify-content:space-between;align-items:center;gap:22px;flex-wrap:wrap}.article-footer nav{display:flex;flex-wrap:wrap;gap:22px;font-size:.8rem}.article-footer p{width:100%;font-size:.72rem;color:rgba(var(--paper-rgb),.65)}
@media(max-width:960px){.article-layout{grid-template-columns:minmax(0,1fr)}.article-toc{position:static;grid-row:1;border-bottom:var(--hair);padding-bottom:16px}.article-toc .toc{max-height:260px}.article-body{max-width:760px}.column-entry{grid-template-columns:120px minmax(0,1fr)}}
@media(max-width:720px){.column-preview:only-child{display:flex}.column-entry{grid-template-columns:minmax(0,1fr);gap:12px}.article-heading{padding-top:118px}.article-heading h1{font-size:2rem}.article-layout{padding-top:24px}.article-body [id]{scroll-margin-top:110px}.article-end{flex-direction:column}.article-body blockquote{padding:12px 16px}.article-footer .shell{align-items:flex-start}.articles-page .topbar .topnav,.portal-home .topbar .topnav{gap:10px;font-size:.72rem}.article-toc details>summary{margin-bottom:8px}}
@media print{.article-toc,.article-footer,.article-end{display:none}.article-heading{padding-top:0}.article-layout{display:block;border:0}.article-body{font-size:11pt}.article-body h2,.article-body h3{break-after:avoid}.article-body pre{white-space:pre-wrap}}

.articles-page::before{display:none}
.articles-page .page-intro .shell{max-width:1180px}

/* TeX is readable before MathJax loads; long display equations scroll on mobile. */
.article-body .math-display{max-width:100%;overflow-x:auto;overflow-y:hidden;padding:14px 4px;margin:24px 0;text-align:center;line-height:1.6}
.article-body .math-inline{white-space:nowrap}
.article-body .math-display mjx-container[display="true"]{margin:0!important;min-width:min-content}
@media print{.article-body .math-display{overflow:visible}}