/* Research blog: page content only. The main site owns its shell and theme. */
.rb-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:.25rem .7rem;padding-top:1.25rem;font-size:.75rem;color:var(--s-muted)}
.rb-breadcrumb a{display:inline-flex;align-items:center;min-height:2.75rem;text-decoration:none}
.rb-breadcrumb a:hover{text-decoration:underline}
.rb-hero{padding:clamp(2rem,4vw,3.7rem) 0 2.4rem;border-bottom:1px solid var(--s-line);margin-bottom:2rem}
.rb-eyebrow{font-size:.68rem;font-weight:650;line-height:1.6;letter-spacing:.14em;text-transform:uppercase;color:var(--s-accent);margin:0 0 1.25rem}
.rb-hero h1{max-width:24ch;margin:0 0 1.4rem;font:400 clamp(2.4rem,4.9vw,4.15rem)/1.1 var(--s-serif);letter-spacing:-.035em;overflow-wrap:anywhere}
.rb-hero .s-lead{max-width:49rem;margin-bottom:1.5rem}
.rb-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem 1.3rem;margin:.9rem 0;font-size:.78rem;line-height:1.7;color:var(--s-muted)}
.rb-meta>*{min-width:0;overflow-wrap:anywhere}
.rb-meta time{font-variant-numeric:tabular-nums}
.rb-tags{display:flex;flex-wrap:wrap;gap:.4rem .5rem;margin:.8rem 0 1.2rem;padding:0;list-style:none}
.rb-tag{display:inline-flex;align-items:center;max-width:100%;padding:.2rem .65rem;border:1px solid var(--s-line);border-radius:2rem;font-size:.7rem;line-height:1.6;color:var(--s-text);overflow-wrap:anywhere;text-decoration:none}
a.rb-tag{min-height:2.75rem}
a.rb-tag:hover{border-color:var(--s-ink);text-decoration:underline}
.rb-actions{display:flex;flex-wrap:wrap;align-items:center;gap:.65rem 1.1rem;margin:1.25rem 0}
.rb-actions>a{display:inline-flex;align-items:center;min-height:2.75rem;font-size:.8rem;overflow-wrap:anywhere}
.rb-button,.rb-filter button{display:inline-flex;justify-content:center;align-items:center;gap:.65rem;max-width:100%;min-height:3rem;padding:.65rem 1.15rem;border:1px solid var(--s-ink);border-radius:2px;background:var(--s-ink);color:var(--s-white);font:500 .8rem/1.5 var(--s-sans);text-align:center;text-decoration:none;cursor:pointer}
.rb-button:hover,.rb-filter button:hover{text-decoration:underline;text-underline-offset:4px}
.rb-button.secondary{background:transparent;color:var(--s-ink);border-color:var(--s-line)}
.rb-filter{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1.1fr) minmax(0,.85fr) auto;align-items:end;gap:1rem;padding:1.35rem;border:1px solid var(--s-line);background:var(--s-soft);margin:2rem 0 1.2rem}
.rb-filter>*{min-width:0}
.rb-filter label{display:block;margin:0 0 .45rem;font-size:.75rem;font-weight:550;line-height:1.5;color:var(--s-ink)}
.rb-filter input,.rb-filter select{display:block;width:100%;min-width:0;min-height:3rem;margin:0;padding:.6rem .75rem;border:1px solid var(--s-muted);border-radius:2px;background:var(--s-white);color:var(--s-ink);font:400 1rem/1.5 var(--s-sans)}
.rb-filter input::placeholder{color:var(--s-muted);opacity:1}
.rb-filter .rb-actions{margin:0;gap:.45rem .8rem}
.rb-filter [data-blog-reset]{display:inline-flex;align-items:center;min-height:2.75rem;font-size:.8rem}
.rb-count{margin:1rem 0 1.3rem;font-size:.8rem;color:var(--s-muted)}
.rb-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.4rem;margin:0 0 3rem;padding:0;list-style:none}
.rb-card{display:flex;flex-direction:column;min-width:0;padding:1.6rem;border:1px solid var(--s-line);background:var(--s-white)}
.rb-card-topic{margin:0 0 1rem;color:var(--s-accent);font-size:.66rem;font-weight:650;letter-spacing:.09em;line-height:1.6;text-transform:uppercase;overflow-wrap:anywhere}
.rb-card-title{margin:0 0 .9rem;font:400 clamp(1.45rem,2.1vw,1.8rem)/1.25 var(--s-serif);letter-spacing:-.02em;overflow-wrap:anywhere}
.rb-card-title a{text-decoration:none}
.rb-card-title a:hover{text-decoration:underline}
.rb-card-summary{margin:0 0 1rem;color:var(--s-text);font-size:.88rem;line-height:1.85;overflow-wrap:anywhere}
.rb-card .rb-meta{margin:.1rem 0 1rem;font-size:.72rem;gap:.2rem .9rem}
.rb-card .rb-tags{margin:.1rem 0 1rem}
.rb-card-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem 1rem;margin-top:auto;padding-top:1rem;border-top:1px solid var(--s-line);font-size:.76rem;color:var(--s-muted)}
.rb-card-footer>a{display:inline-flex;align-items:center;gap:.5rem;min-height:2.75rem;color:var(--s-ink);font-weight:550}
.rb-empty{margin:1.5rem 0 3rem;padding:1.5rem;border:1px solid var(--s-line);background:var(--s-soft);color:var(--s-text);line-height:1.8}
.rb-empty h2{margin:0 0 .6rem;color:var(--s-ink);font:400 1.7rem/1.3 var(--s-serif)}
.rb-empty p{margin:.4rem 0}
.rb-reading-layout{display:grid;grid-template-columns:13.5rem minmax(0,1fr);gap:clamp(2rem,5vw,4.5rem);align-items:start;margin:2.5rem 0 3rem}
.rb-toc{grid-column:1;grid-row:1;position:sticky;top:2rem;min-width:0;padding-top:1rem;border-top:2px solid var(--s-line);font-size:.83rem;line-height:1.65}
.rb-toc h2,.rb-toc summary{margin:0 0 .6rem;font:600 .85rem/1.5 var(--s-sans);color:var(--s-ink)}
.rb-toc summary{min-height:2.75rem;cursor:pointer}
.rb-toc ol,.rb-toc ul{margin:.2rem 0;padding-left:1.2rem}
.rb-toc li{padding:.15rem 0;color:var(--s-muted);overflow-wrap:anywhere}
.rb-toc a{display:block;padding:.5rem 0;color:var(--s-text);text-decoration:none}
.rb-toc a:hover{text-decoration:underline}
.rb-prose{grid-column:2;grid-row:1;min-width:0;max-width:50rem;color:var(--s-text);font-size:1.025rem;line-height:1.9;overflow-wrap:anywhere}
.rb-prose>p,.rb-prose .f-section p{margin:.9rem 0}
.rb-prose h2{margin:2.7rem 0 1.1rem;font:400 clamp(1.7rem,3vw,2.15rem)/1.25 var(--s-serif);letter-spacing:-.02em;color:var(--s-ink)}
.rb-prose h3{margin:1.8rem 0 .8rem;font:600 1.13rem/1.5 var(--s-sans);color:var(--s-ink)}
.rb-prose .f-section{margin:0 0 2.5rem;padding-bottom:2.4rem;border-bottom:1px solid var(--s-line)}
.rb-prose .f-section>h2:first-child{margin-top:0}
.rb-prose .f-section p,.rb-prose .f-section li{font-size:inherit;line-height:inherit}
.rb-prose .s-lead{font-size:1.15rem;line-height:1.85;color:var(--s-ink)}
.rb-prose li{margin:.5rem 0}
.rb-prose ol,.rb-prose ul{padding-left:1.4rem}
.rb-prose .f-equation{max-width:100%;overflow-x:auto;margin:1.4rem 0;padding:1.1rem 1.25rem;border:1px solid var(--s-line);border-radius:2px;background:var(--s-soft);color:var(--s-ink);font:1.12rem/1.9 var(--s-serif);white-space:normal;overflow-wrap:anywhere}
.rb-prose .f-equation small{display:block;margin-top:.6rem;color:var(--s-muted);font:.83rem/1.7 var(--s-sans)}
.rb-prose pre{max-width:100%;overflow:auto;padding:1rem;background:var(--s-soft);border:1px solid var(--s-line);font-size:.87rem;line-height:1.7;white-space:pre;overflow-wrap:normal}
.rb-prose code{font-size:.88em}
.rb-prose blockquote{margin:1.5rem 0;padding:.25rem 0 .25rem 1.25rem;border-left:3px solid var(--s-accent);color:var(--s-ink)}
.rb-prose blockquote p{margin:.6rem 0}
.rb-prose figure{max-width:100%;margin:1.8rem 0}
.rb-prose figure img{display:block;max-width:100%;height:auto;margin:auto}
.rb-prose figcaption{margin-top:.75rem;color:var(--s-muted);font-size:.84rem;line-height:1.75}
.rb-prose .f-sources{padding-left:1.3rem;font-size:.87rem;line-height:1.8}
.rb-prose .f-sources li{font-size:inherit;line-height:inherit;margin:.75rem 0}
.rb-prose .f-sources a{overflow-wrap:anywhere}
.rb-prose [id]{scroll-margin-top:2rem}
.rb-collaborate{margin:2rem 0 3rem;padding:clamp(1.4rem,3vw,2.2rem);background:var(--s-soft);border:1px solid var(--s-line)}
.rb-collaborate h2{margin:0 0 .9rem;max-width:35ch;font:400 clamp(1.75rem,3vw,2.2rem)/1.2 var(--s-serif);color:var(--s-ink)}
.rb-collaborate p{max-width:53rem;margin:.65rem 0;color:var(--s-text);font-size:.95rem;line-height:1.85}
.rb-collaborate .rb-actions:last-child{margin-bottom:0}
.rb-related{margin:2.5rem 0 3rem}
.rb-related>h2{margin:0 0 1.3rem;font:400 2rem/1.25 var(--s-serif);color:var(--s-ink)}
.rb-related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.25rem}
.rb-related-grid>*{min-width:0}
.rb-related-grid .rb-card-title{font-size:1.5rem}
.rb-post-nav{display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem 2rem;margin:2rem 0;padding:1.3rem 0;border-top:1px solid var(--s-line);border-bottom:1px solid var(--s-line);font-size:.85rem}
.rb-post-nav a{display:inline-flex;align-items:center;min-height:2.75rem;max-width:47%;overflow-wrap:anywhere}
.rb-archive-year{margin:2.5rem 0 1rem;font:400 2.25rem/1.2 var(--s-serif);color:var(--s-ink)}
.rb-archive-list{list-style:none;margin:0 0 3rem;padding:0;border-top:1px solid var(--s-line)}
.rb-archive-list>li{display:flex;flex-wrap:wrap;align-items:baseline;gap:.5rem 1.5rem;padding:1.1rem 0;border-bottom:1px solid var(--s-line)}
.rb-archive-list time{flex:0 0 8rem;color:var(--s-muted);font-size:.78rem;font-variant-numeric:tabular-nums}
.rb-archive-list a{min-width:0;overflow-wrap:anywhere}
.rb-archive-list h2,.rb-archive-list h3{margin:0;font:400 1.4rem/1.35 var(--s-serif)}
.rb-archive-list p{margin:.3rem 0;font-size:.85rem;color:var(--s-text)}
.rb-filter :focus-visible,.rb-actions :focus-visible,.rb-grid :focus-visible,.rb-toc :focus-visible,.rb-related :focus-visible,.rb-post-nav :focus-visible,.rb-breadcrumb :focus-visible,.rb-prose :focus-visible{outline:3px solid var(--s-accent);outline-offset:4px}
@media(max-width:1050px){.rb-filter{grid-template-columns:repeat(3,minmax(0,1fr))}.rb-filter>:first-child{grid-column:1/-1}.rb-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.rb-reading-layout{grid-template-columns:11rem minmax(0,1fr);gap:2rem}.rb-card{padding:1.4rem}}
@media(max-width:800px){.rb-reading-layout{grid-template-columns:1fr;gap:2rem}.rb-toc{grid-column:1;grid-row:1;position:static}.rb-prose{grid-column:1;grid-row:2;max-width:none}.rb-toc ol,.rb-toc ul{columns:2;column-gap:2rem}.rb-toc li{break-inside:avoid}.rb-hero{padding-top:2rem}.rb-hero h1{max-width:26ch}}
@media(max-width:600px){.rb-filter{grid-template-columns:repeat(2,minmax(0,1fr));padding:1.1rem}.rb-filter .rb-actions{grid-column:1/-1}.rb-grid{grid-template-columns:1fr;gap:1.1rem}.rb-related-grid{grid-template-columns:1fr}.rb-card-title{font-size:1.75rem}.rb-card{padding:1.4rem}.rb-hero h1{font-size:clamp(2.25rem,8.5vw,3.15rem)}.rb-post-nav{display:block}.rb-post-nav a{display:flex;max-width:100%;margin:.45rem 0}.rb-archive-list>li{display:block}.rb-archive-list time{display:block;margin-bottom:.4rem}}
@media(max-width:420px){.rb-filter{grid-template-columns:1fr}.rb-filter>:first-child,.rb-filter .rb-actions{grid-column:auto}.rb-toc ol,.rb-toc ul{columns:1}.rb-prose{font-size:1rem;line-height:1.85}.rb-prose .s-lead{font-size:1.08rem}.rb-prose .f-equation{padding:.85rem;font-size:1.04rem}.rb-hero{margin-bottom:1.5rem;padding-bottom:1.75rem}.rb-actions{gap:.5rem .9rem}.rb-meta{gap:.3rem .8rem}.rb-breadcrumb{gap:.15rem .45rem;font-size:.7rem}}
@media print{.rb-filter,.rb-toc,.rb-actions,.rb-post-nav{display:none}.rb-hero{padding-top:1rem}.rb-hero h1{font-size:30pt;max-width:none}.rb-reading-layout{display:block}.rb-prose{max-width:none;font-size:11pt}.rb-grid,.rb-related-grid{display:block}.rb-card{margin-bottom:1rem;break-inside:avoid}.rb-prose .f-equation,.rb-prose figure{break-inside:avoid}.rb-prose pre{white-space:pre-wrap;overflow:visible}.rb-collaborate{break-inside:avoid}.rb-card-title{font-size:17pt}}