:root{--bg:#fff;--surface:#f7f7f5;--ink:#20231f;--muted:#687067;--line:#e3e5df;--accent:#42654f;--selected:#eef3ed;--serif:Charter,Georgia,'Times New Roman','Songti SC',STSong,serif;--sans:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color-scheme:light}
:root[data-theme=dark]{--bg:#1d211e;--surface:#232924;--ink:#e1e5dd;--muted:#a7b0a4;--line:#374037;--accent:#b1caaa;--selected:#2c392e;color-scheme:dark}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--serif);height:100vh;height:100dvh;overflow:hidden}.reading-desk{position:fixed;inset:0;display:grid;grid-template-columns:232px minmax(360px,1fr) minmax(390px,1fr);height:100dvh;overflow:hidden}a{color:var(--accent);text-underline-offset:3px}button,input,select{font:inherit;color:inherit}button,select{cursor:pointer}button{background:transparent;border:1px solid var(--line);border-radius:3px;padding:5px 10px}button:hover,a:hover{color:var(--accent)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}[hidden]{display:none!important}.sidebar{display:flex;flex-direction:column;padding:32px 22px 20px;background:var(--surface);border-right:1px solid var(--line);overflow:auto}.brand{display:flex;gap:12px;color:var(--ink);text-decoration:none;font-size:24px;line-height:1.12;letter-spacing:-.7px;margin-bottom:38px}.brand-mark{font-size:40px;font-weight:400;color:var(--accent);line-height:1}.brand-sub{display:block;font:8px/1.5 var(--sans);letter-spacing:1.7px;margin-top:14px;color:var(--muted)}nav{display:grid;gap:4px}nav button{display:flex;text-align:left;justify-content:space-between;align-items:center;gap:9px;width:100%;border:0;padding:9px 10px;font-size:14px}nav button.active{background:var(--selected);color:var(--accent);box-shadow:inset 2px 0 var(--accent)}nav .count{color:var(--muted);font:11px var(--sans)}.nav-label,.eyebrow,.list-caption,.tag,.meta,.toolbar,.utilities,.edition{font-family:var(--sans)}.nav-label{font-size:9px;letter-spacing:1.4px;color:var(--muted);margin:30px 10px 12px}.sidebar-bottom{margin-top:auto;padding-top:36px}.edition{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:7px}.dot{height:6px;width:6px;border-radius:50%;background:var(--accent)}.sidebar-bottom p{font-size:13px;color:var(--muted);line-height:1.7;margin:15px 0 22px}.utilities{display:flex;align-items:center;gap:13px;font-size:11px}.utilities a{text-decoration:none}.utilities button{padding:3px 7px}main,#detail{min-width:0;overflow:auto;scrollbar-width:thin;scrollbar-color:var(--line) transparent}main{border-right:1px solid var(--line)}.catalog-header{padding:31px 30px 18px;background:var(--bg);position:sticky;top:0;z-index:2;border-bottom:1px solid var(--line)}.eyebrow{font-size:9px;letter-spacing:1.8px;color:var(--muted)}.heading-row{display:flex;align-items:center;gap:12px;margin-top:7px}h1{font-size:32px;letter-spacing:-1px;font-weight:400;line-height:1.3;margin:0}.total{border:1px solid var(--line);border-radius:20px;padding:1px 9px;font:11px var(--sans);color:var(--muted)}#subtitle{font-size:14px;color:var(--muted);margin:8px 0 23px}.search-wrap{display:flex;align-items:center;gap:10px;border:1px solid var(--line);padding:8px 12px;border-radius:3px}.search-wrap>span{font-size:24px;line-height:1;color:var(--muted)}input{width:100%;min-width:0;background:transparent;border:0;outline:none;font:12px/1.8 var(--sans)}.search-wrap:focus-within{border-color:var(--accent)}kbd{font:11px var(--sans);color:var(--muted);border:1px solid var(--line);padding:0 5px}.toolbar{display:flex;align-items:center;gap:12px;margin-top:13px;font-size:11px}.toolbar label{margin-left:auto;color:var(--muted)}select{font:11px var(--sans);max-width:160px;background:var(--bg);border:1px solid var(--line);padding:5px}.toolbar button{border:0;padding:3px 0}.toolbar button:first-child{color:var(--accent)}#reset{color:var(--muted)}#filters{display:flex;gap:16px;padding-top:16px;font:11px var(--sans)}#filters label{display:flex;align-items:center;gap:8px}.list-caption{display:flex;justify-content:space-between;padding:15px 30px;color:var(--muted);font-size:10px;border-bottom:1px solid var(--line)}#list-hint{font-size:8px;letter-spacing:1px}.paper{position:relative;border-bottom:1px solid var(--line);padding:21px 30px 21px 28px;border-left:2px solid transparent}.paper.selected{background:var(--selected);border-left-color:var(--accent)}.paper:hover{background:var(--surface)}.meta{font-size:10px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}.meta .category-text{color:var(--accent)}.paper-title{display:block;border:0;text-align:left;padding:0;font:19px/1.35 var(--serif);margin:9px 0;letter-spacing:-.3px}.paper-title::after{content:'';position:absolute;inset:0}.paper p{font-size:13px;color:var(--muted);line-height:1.65;margin:0 0 12px}.tags{display:flex;flex-wrap:wrap;gap:6px}.tag{font-size:9px;border:1px solid var(--line);padding:2px 7px;border-radius:2px;color:var(--muted)}.detail-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:20px 30px;font:10px var(--sans);color:var(--muted);min-height:66px;position:sticky;top:0;background:var(--bg);z-index:2}.detail-actions{display:flex;gap:8px}.detail-content{padding:30px 34px 48px;max-width:850px;margin:auto}.detail-content h2{font-size:30px;font-weight:400;line-height:1.22;letter-spacing:-.7px;margin:16px 0}.detail-content .lead{font-size:16px;color:var(--muted);margin:21px 0;line-height:1.8}.sources{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 24px;border-bottom:1px solid var(--line)}.sources a{font:10px var(--sans);padding:6px 9px;border:1px solid var(--line);border-radius:3px;text-decoration:none}.detail-section{margin-top:27px}.detail-section h3{font-size:11px;font-family:var(--sans);font-weight:500;color:var(--accent);margin:0 0 9px}.detail-section p{font-size:14px;line-height:1.85;margin:0;white-space:pre-line;overflow-wrap:anywhere}.detail-section.boundary{background:var(--surface);padding:17px;border-left:2px solid var(--accent)}.detail-footer{margin-top:32px;border-top:1px solid var(--line);padding-top:16px;color:var(--muted);font:10px/1.8 var(--sans)}.empty-detail,.empty-list{padding:55px 34px;color:var(--muted)}.empty-detail h2{font-size:35px;font-weight:400;color:var(--ink)}.skip{position:fixed;top:-100px;left:10px;z-index:10;padding:10px;background:var(--bg)}.skip:focus{top:10px}.close-detail{display:none}
@media(min-width:1600px){.reading-desk{grid-template-columns:250px minmax(470px,.95fr) minmax(520px,1.1fr)}.catalog-header{padding:36px 40px 20px}.paper{padding:23px 40px}.detail-content{padding:40px 50px}.paper-title{font-size:21px}}
@media(max-width:1150px){.reading-desk{grid-template-columns:195px minmax(300px,1fr) minmax(340px,1fr)}.sidebar{padding:28px 15px}.brand{font-size:21px}.catalog-header{padding:25px 20px 16px}.paper{padding:19px 20px}.detail-content{padding:26px 24px}.detail-content h2{font-size:26px}.list-caption{padding:13px 20px}#list-hint{display:none}.toolbar{gap:8px}}
@media(max-width:900px){.reading-desk{grid-template-columns:195px minmax(0,1fr)}#detail{display:none}body.detail-open #detail{display:block;position:fixed;inset:0 0 0 195px;background:var(--bg);z-index:5}.close-detail{display:inline-block}}
@media(max-width:600px), (max-width:900px) and (max-height:500px){body,.reading-desk{display:block;height:auto;overflow:auto}.reading-desk{position:relative;inset:auto}.sidebar{padding:18px 18px 12px;overflow:visible;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:20px;margin-bottom:16px;align-items:center}.brand br{display:none}.brand-mark{font-size:30px}.brand-sub{margin:5px 0 0;font-size:7px}#collections{display:flex;gap:8px}#collections button{width:auto;gap:13px}#categories{display:flex;overflow:auto;padding-bottom:5px}#categories button{width:auto;white-space:nowrap;font-size:12px}.nav-label{margin:17px 10px 6px}.sidebar-bottom{padding:0;position:absolute;top:20px;right:16px}.edition,.sidebar-bottom p,.utilities a{display:none}.utilities{gap:6px}main{overflow:visible;border:0}.catalog-header{position:static;padding:23px 20px 16px}h1{font-size:29px}.paper{padding:20px}body.detail-open #detail{inset:0;height:100dvh}.detail-content{padding:25px 22px}.detail-top{padding:15px 22px}.toolbar{gap:14px}}
@media(max-width:600px), (max-width:900px) and (max-height:500px){.brand br::after{content:' '}.brand br{display:contents}#collections{overflow-x:auto;max-width:100%;padding-bottom:4px}#collections button{flex-shrink:0;white-space:nowrap}.detail-top{gap:10px;flex-wrap:wrap}.detail-actions{flex-shrink:0}body.detail-open{overflow:hidden}body.detail-open #detail{width:100%;max-width:100vw}}
.taxonomy-link{margin:-18px 0 18px;padding:5px 0;border:0;text-align:left;font:11px var(--sans);color:var(--accent)}dialog{width:min(740px,calc(100vw - 32px));max-height:85dvh;background:var(--bg);color:var(--ink);border:1px solid var(--line);padding:36px;overflow:auto}dialog::backdrop{background:#15221866;backdrop-filter:blur(3px)}dialog h2{font:30px/1.25 var(--serif);margin:16px 0}dialog p{font-size:14px;color:var(--muted)}.dialog-close{float:right;border:0;font-size:24px;margin:-20px -18px 0 0}.taxonomy-axes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:25px 0;border-block:1px solid var(--line);padding:20px 0}.taxonomy-axes h3{font:12px var(--sans);color:var(--accent)}dialog dt{font-weight:600;font-size:15px;margin-top:15px}dialog dd{margin:0;color:var(--muted);font-size:13px}@media(max-width:600px), (max-width:900px) and (max-height:500px){.taxonomy-link{margin:0 0 13px}.taxonomy-axes{grid-template-columns:1fr;gap:6px}dialog{padding:24px}.utilities{font-size:9px}.brand{max-width:250px}}

/* Keep each desktop pane within the viewport without shrinking sidebar controls. */
.reading-desk{grid-template-rows:minmax(0,1fr);grid-template-areas:"sidebar catalog detail"}
.reading-desk>.sidebar{grid-area:sidebar}
.reading-desk>#catalog{grid-area:catalog}
.reading-desk>#detail{grid-area:detail}
@media(max-width:900px){.reading-desk{grid-template-areas:"sidebar catalog"}}
.sidebar,main,#detail{min-height:0}
.sidebar>*{flex-shrink:0}
.catalog-header{padding-top:20px;padding-bottom:14px}
.catalog-header>.eyebrow{display:none}
.heading-row{margin-top:0}
#subtitle{margin:5px 0 14px;font-size:13px}
h1{font-size:28px}
.toolbar,#filters{flex-wrap:wrap}
.detail-top{gap:10px;flex-wrap:wrap}
.paper-title,.detail-content h2,.tag{overflow-wrap:anywhere}
@media(min-width:1200px){
  .catalog-header{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:20px;align-items:center}
  .heading-row{grid-column:1;grid-row:1}
  .search-wrap{grid-column:2;grid-row:1}
  #subtitle{grid-column:1/-1;margin:9px 0 0}
  .toolbar,#filters{grid-column:1/-1}
}
/* Short windows need their vertical space for reading; headers scroll away. */
@media(max-height:650px){
  .catalog-header,.detail-top{position:static}
  .sidebar{padding-top:18px}
  .brand{margin-bottom:26px}
  .sidebar-bottom{padding-top:20px}
}
/* A phone rotated sideways remains a full-page, touch-friendly layout. */
@media(max-width:600px), (max-width:900px) and (max-height:500px){
  body,.reading-desk{height:auto;min-height:100dvh;overflow:auto}
  .sidebar{padding-top:18px}
  .brand{margin-bottom:16px}
  .sidebar-bottom{padding-top:0}
  .catalog-header{padding-top:18px}
  body.detail-open #detail{height:100dvh;overflow-y:auto;overscroll-behavior:contain}
}

@media(min-width:601px) and (max-width:900px) and (max-height:500px){
  .sidebar{padding-block:10px 6px}
  .brand{margin-bottom:8px}
  .brand-sub,.nav-label{display:none}
  .taxonomy-link{position:absolute;right:132px;top:22px;margin:0}
  nav button{padding-block:5px}
  .catalog-header{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px 20px;padding-block:12px}
  .heading-row{grid-column:1;grid-row:1}
  .search-wrap{grid-column:2;grid-row:1}
  #subtitle{display:none}
  .toolbar,#filters{grid-column:1/-1;margin-top:0}
  .list-caption{padding-block:8px}
}
.insight{border-top:1px solid var(--line);padding-block:18px}
.insight h3{font:22px/1.3 var(--serif);font-weight:400;margin:0 0 12px}
.insight .experiment{background:var(--surface);padding:12px 15px;border-left:2px solid var(--accent)}
.insight-sources{display:flex;gap:7px;flex-wrap:wrap}
.insight-sources button{font:11px/1.5 var(--sans);text-align:left;max-width:100%;overflow-wrap:anywhere}
#research-insights{color:var(--accent)}

/* Cross-category targets remain readable at narrow widths. */
#filters label { min-width:0; }
#filters select { max-width:100%; }
.target-tags {display:flex;flex-wrap:wrap;gap:5px;margin:14px 0;color:var(--muted);font-size:11px;}
.target-tags > span {width:100%;font-size:10px;letter-spacing:.06em;text-transform:uppercase;}
.target-tags button {border:1px solid var(--line);border-radius:3px;padding:3px 7px;color:var(--accent);font:inherit;text-align:left;}
.target-tags button:hover {background:var(--tint);}