:root{--surface:#fcfcfb;--surface2:#f3f3f1;--line:#dcdcd8;--text:#0b0b0b;--text2:#52514e;--muted:#8a8984;--good:#008300;--goodbg:#e4f3e4;--bad:#b3261e;--accent:#2a78d6}
*{box-sizing:border-box}
html,body{margin:0;background:var(--surface);color:var(--text);font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent)}
header.top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 16px;padding:10px 18px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--surface);z-index:5}
.brand{font-weight:600}
.brand .sub{font-weight:400;color:var(--text2);margin-left:8px}
nav.tabs a{display:inline-block;padding:6px 10px;margin-left:4px;border-radius:6px;text-decoration:none;color:var(--text2)}
nav.tabs a.active{background:var(--surface2);color:var(--text)}
main{padding:14px 18px}
html{scroll-padding-top:62px}
section.tab{display:none;scroll-margin-top:62px}
.prose h2,.prose h3{scroll-margin-top:62px}
section.tab.active{display:block}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:24px}
@media (max-width:1100px){.two-col{grid-template-columns:1fr}}
.prose h1{font-size:22px;margin:4px 0 10px}
.prose h2{font-size:18px;margin:22px 0 8px;padding-top:8px;border-top:1px solid var(--line)}
.prose h3{font-size:15px;margin:16px 0 6px}
.prose code{background:var(--surface2);padding:1px 4px;border-radius:4px;font-size:12.5px}
.prose table{border-collapse:collapse;font-size:12.5px;margin:8px 0;display:block;overflow-x:auto;max-width:100%}
.prose th,.prose td{border:1px solid var(--line);padding:3px 7px;text-align:left;white-space:nowrap}
.prose th{background:var(--surface2)}
.tables table{font-size:12px}
.tables-bar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:8px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;position:sticky;top:50px;z-index:3}
.toc a{display:inline-block;margin:2px 8px 2px 0;font-size:12.5px}
.horizon{font-size:12.5px;color:var(--text2)}
.horizon label{margin-left:8px}
.figs h3{margin:4px 0 8px}
.fig{margin:0 0 14px}
.fig img{width:100%;border:1px solid var(--line);border-radius:6px;cursor:zoom-in;background:#fff}
.fig .cap{font-size:12px;color:var(--text2);margin-top:4px}
.browse{display:grid;grid-template-columns:330px minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:900px){.browse{grid-template-columns:1fr}.controls{position:static;max-height:none}}
.controls{position:sticky;top:58px;max-height:calc(100vh - 70px);overflow:auto;padding:10px;border:1px solid var(--line);border-radius:8px;background:#fff}
.ctl{margin-bottom:10px}
.ctl label{display:block;font-size:12px;color:var(--text2);margin-bottom:3px}
.ctl select,.ctl input[type=search]{width:100%;font:inherit;font-size:13px;padding:3px 4px;border:1px solid var(--line);border-radius:5px;background:#fff}
.ctl select#sort-col{margin-top:4px}
.ctl input[type=range]{width:100%}
.checks label,.ctl label input[type=checkbox]{display:inline-flex;align-items:center;gap:4px;margin:0 10px 2px 0;font-size:13px;color:var(--text)}
.hint{font-size:11px;color:var(--muted)}
button{font:inherit;font-size:12.5px;padding:3px 8px;border:1px solid var(--line);border-radius:5px;background:var(--surface2);cursor:pointer;color:var(--text)}
.colgrid{display:grid;gap:3px;font-size:11.5px;margin-bottom:6px;overflow-x:auto}
.colgrid .cg-h{color:var(--text2);text-align:center;padding:2px 0}
.colgrid .cg-m{display:flex;align-items:center;gap:5px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding-right:4px}
.colgrid .sw{display:inline-block;width:9px;height:9px;border-radius:2px;flex:0 0 auto}
.colgrid button{padding:2px 0;font-size:11.5px;border-radius:4px;min-width:0}
.colgrid button.on{background:#1f1f1f;color:#fff;border-color:#1f1f1f}
.colgrid button:disabled{color:#c4c3bf;background:transparent;border-style:dashed;cursor:default}
.chips{display:flex;flex-wrap:wrap;gap:4px}
.chip{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--line);border-left-width:5px;border-radius:5px;padding:2px 6px;font-size:12px;background:#fff}
.chip button{border:0;background:none;cursor:pointer;color:var(--muted);font-size:13px;line-height:1;padding:0 2px}
.legend{font-size:12px;color:var(--text2);border:1px solid var(--line);border-radius:8px;padding:6px 10px;margin-bottom:10px;background:#fff}
.legend summary{cursor:pointer;color:var(--text);font-weight:600;font-size:12.5px}
.legend .badge{margin:0 2px}
.summary{font-size:13px;color:var(--text2);margin:2px 0 8px}
.colsummary{margin-bottom:10px;overflow-x:auto}
.colsummary table{border-collapse:collapse;font-size:12px;background:#fff}
.colsummary th,.colsummary td{border:1px solid var(--line);padding:3px 7px;text-align:right;white-space:nowrap}
.colsummary th{background:var(--surface2);font-weight:600;text-align:right}
.colsummary td:first-child,.colsummary th:first-child{text-align:left}
.colsummary .sw{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:-1px}
.colsummary .good{color:var(--good);font-weight:600}
.pager{display:flex;gap:6px;align-items:center;font-size:12.5px;color:var(--text2);margin:6px 0}
.grid{display:flex;flex-direction:column;gap:14px}
.case{border-top:1px solid var(--line);padding-top:8px}
.case .head{font-size:12.5px;color:var(--text2);margin-bottom:6px;display:flex;gap:10px;flex-wrap:wrap;align-items:baseline}
.case .head b{color:var(--text)}
.case .head .task{color:var(--text);font-style:italic}
.case .head a{font-size:11.5px}
.imgs{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px}
.card{flex:0 0 auto;width:var(--tw,224px);border:1px solid var(--line);border-top:4px solid var(--line);border-radius:6px;background:#fff;overflow:hidden}
.card.gt{border-top-color:#9a9a96}
.card .lab{font-size:11.5px;padding:3px 6px;color:var(--text2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card img{display:block;width:100%;height:auto;cursor:zoom-in;background:var(--surface2)}
.card .badges{display:flex;flex-wrap:wrap;gap:3px;padding:4px 6px 5px}
.badge{display:inline-block;font-size:11px;line-height:1.2;padding:1px 5px;border-radius:4px;background:var(--surface2);color:var(--text2);border:1px solid var(--line)}
.badge.good{background:var(--goodbg);color:var(--good);border-color:#bfe0bf}
.badge.bad{color:var(--bad)}
details.prompts{font-size:12px;color:var(--text2);margin-top:4px}
details.prompts summary{cursor:pointer}
details.prompts .pr{margin:3px 0 3px 10px}
details.prompts .pr b{color:var(--text);font-weight:600}
details.prompts .plan{white-space:pre-wrap;background:var(--surface2);border-radius:5px;padding:4px 6px;margin:2px 0 4px 10px;max-height:220px;overflow:auto}
.lightbox{position:fixed;inset:0;background:rgba(10,10,10,.92);z-index:50;display:flex;align-items:center;justify-content:center}
.lightbox.hidden{display:none}
.lb-inner{max-width:96vw;max-height:94vh;display:flex;flex-direction:column;align-items:center}
.lb-inner img{max-width:92vw;max-height:76vh;object-fit:contain;background:#000}
.lb-cap{color:#eee;font-size:13px;max-width:92vw;padding:8px 4px;text-align:left;white-space:pre-wrap;max-height:16vh;overflow:auto}
.lb-close,.lb-nav{position:fixed;background:rgba(255,255,255,.14);color:#fff;border:0;border-radius:50%;width:40px;height:40px;font-size:24px;cursor:pointer;z-index:51;padding:0}
.lb-close{top:12px;right:12px}
.lb-nav{top:calc(50% - 20px)}
.lb-prev{left:12px}
.lb-next{right:12px}
footer.foot{padding:14px 18px;color:var(--muted);font-size:12px;border-top:1px solid var(--line);margin-top:20px}
.card .missing{font-size:11px;color:var(--bad);padding:10px 6px;word-break:break-all}