:root{--ground:#f3f2ef;--paper:#fbfaf8;--raise:#fff;--hover:#ecebe7;--ink:#1c1b19;--ink-2:#4a4843;--text:#2a2926;--muted:#7b7872;--rule:#dddbd5;--rule-2:#cbc8c1;--marker:#a8561c;--marker-soft:#e8a06438;--marker-line:#a8561c61;--blue:#4d5f86;--blue-soft:#4d5f861f;--teal:#2e7a6c;--red:#b8432f;--green:#3d7a45;--focus-rule:#b9b6ae;--shadow:0 1px 2px #1c1b190f, 0 12px 32px -14px #1c1b1940;--ui:"Recursive", ui-monospace, "SF Mono", Menlo, Consolas, monospace;--read:"Recursive", system-ui, -apple-system, "Segoe UI", sans-serif;--paperface:"Source Serif 4", Georgia, "Times New Roman", serif;--sans:var(--read);--mono:var(--ui);--serif:var(--paperface);--ui-vs:"MONO" 1, "CASL" 0;--read-vs:"MONO" 0, "CASL" 0;--radius:2px;--topbar:44px;--statusbar:24px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--ground:#09090a;--paper:#0f0f11;--raise:#161618;--hover:#1d1d20;--ink:#d9d6d0;--ink-2:#a3a09a;--text:#c4c1ba;--muted:#75736d;--rule:#232327;--rule-2:#2f2f34;--marker:#d4ab86;--marker-soft:#d4ab8621;--marker-line:#d4ab8661;--blue:#9aa4b8;--blue-soft:#9aa4b824;--teal:#7fa39b;--red:#c4928a;--green:#8faa8c;--focus-rule:#3a3a40;--shadow:0 1px 2px #00000080, 0 18px 40px -16px #000000b3;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%}body{background:var(--ground);color:var(--ink);font-family:var(--ui);font-variation-settings:var(--ui-vs);-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.5}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:0;padding:0}button:disabled{cursor:default;opacity:.5}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}::selection{background:var(--marker-soft)}.mono{font-family:var(--ui);font-variation-settings:var(--ui-vs);font-size:12px}.muted{color:var(--muted)}.hidden{display:none!important}.btn{border-radius:var(--radius);border:1px solid var(--rule-2);background:var(--paper);color:var(--ink);white-space:nowrap;align-items:center;gap:6px;padding:5px 10px;font-size:13px;font-weight:500;line-height:1.2;display:inline-flex}.btn:hover:not(:disabled){border-color:var(--ink-2)}.btn.primary:hover:not(:disabled){background:var(--ink-2)}.btn.quiet{background:0 0;border-color:#0000}.btn.quiet:hover:not(:disabled){background:var(--blue-soft);border-color:#0000}.btn.danger{color:var(--red)}.btn.active{background:var(--marker-soft);border-color:var(--marker)}.input,.textarea,.select{border-radius:var(--radius);border:1px solid var(--rule-2);background:var(--paper);color:var(--ink);width:100%;padding:6px 9px}.input:focus,.textarea:focus,.select:focus{border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-soft);outline:none}.textarea{resize:vertical;min-height:60px;font-family:var(--ui);font-variation-settings:var(--ui-vs)}.select{appearance:none;background-image:linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);background-position:calc(100% - 13px) 55%,calc(100% - 9px) 55%;background-repeat:no-repeat;background-size:4px 4px;width:auto;padding-right:26px}.chip{border-radius:var(--radius);background:var(--blue-soft);color:var(--blue);align-items:center;gap:4px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-flex}.pill-row{flex-wrap:wrap;gap:6px;display:flex}.error{color:var(--red);border-radius:var(--radius);background:#b3402f14;border:1px solid #b3402f4d;padding:8px 10px;font-size:13px}.notice{color:var(--ink-2);background:var(--blue-soft);border-radius:var(--radius);padding:8px 10px;font-size:13px}.empty{border:1px dashed var(--rule-2);border-radius:var(--radius);text-align:center;color:var(--muted);padding:32px}.pdf-pane{background:var(--ground);grid-template-rows:auto 1fr;min-height:0;display:grid;position:relative}.pdf-toolbar{border-bottom:1px solid var(--rule);background:var(--paper);align-items:center;gap:8px;padding:6px 10px;font-size:12px;display:flex}.pdf-toolbar .page-input{text-align:center;width:44px;padding:3px 4px}.pdf-toolbar .grow{flex:1}.pdf-scroll{scroll-behavior:smooth;padding:16px 0 60vh;position:relative;overflow:auto}@media (prefers-reduced-motion:reduce){.pdf-scroll{scroll-behavior:auto}}.pdf-page-wrap{width:-moz-fit-content;width:fit-content;box-shadow:var(--shadow);background:#fff;margin:0 auto 14px;position:relative}.pdf-page-wrap .page-num{z-index:2;font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted);background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);opacity:.85;pointer-events:none;padding:0 5px;font-size:10px;position:absolute;top:6px;right:8px}.pdf-placeholder{background:var(--paper)}.react-pdf__Page__textContent span::selection{background:var(--marker-soft)}:root[data-theme=dark] .react-pdf__Page__canvas{filter:invert(.92)hue-rotate(180deg)}.area-select{border:1.5px dashed var(--blue);background:var(--blue-soft);pointer-events:none;z-index:5;position:absolute}.pdf-hint{background:var(--ink);color:var(--ground);border-radius:var(--radius);pointer-events:none;opacity:.92;padding:5px 10px;font-size:12px;position:absolute;bottom:10px;left:50%;transform:translate(-50%)}.section-hl.flash{animation:1.8s ease-out forwards hlfade}@keyframes hlfade{0%{opacity:1}60%{opacity:1}to{opacity:0}}.seg{border:1px solid var(--rule-2);border-radius:var(--radius);display:inline-flex;overflow:hidden}.seg button{color:var(--muted);background:var(--paper);padding:4px 10px;font-size:12px;font-weight:500}.seg button+button{border-left:1px solid var(--rule-2)}.example{border-top:1px solid var(--rule);padding:10px 0 4px}.example:first-of-type{border-top:0;padding-top:0}.example .head{font-family:var(--read);font-variation-settings:var(--read-vs);align-items:center;gap:8px;margin-bottom:4px;font-size:14.5px;display:flex}.section-hl{background:var(--marker-soft);pointer-events:none;z-index:1;border-left:4px solid var(--marker);transition:top .15s,height .15s;position:absolute;left:0;right:0}:root[data-theme=dark] .section-hl{background:#e6c93a2e}.hl{pointer-events:none;mix-blend-mode:multiply;border-radius:var(--radius);position:absolute}:root[data-theme=dark] .hl{mix-blend-mode:screen;opacity:.5}.popover{z-index:30;background:var(--paper);border:1px solid var(--rule-2);border-radius:var(--radius);box-shadow:var(--shadow);flex-wrap:wrap;gap:2px;max-width:320px;padding:6px;animation:.12s ease-out pop;display:flex;position:fixed}@keyframes pop{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}.popover .btn{border-color:#0000}.popover .btn:hover{background:var(--marker-soft)}.popover .sep{background:var(--rule);width:1px;margin:4px 2px}.find-box{align-items:center;gap:6px;display:flex}.find-results{z-index:15;background:var(--paper);border:1px solid var(--rule-2);border-radius:var(--radius);width:300px;max-height:50%;box-shadow:var(--shadow);position:absolute;top:38px;right:10px;overflow:auto}.find-results button{text-align:left;border-bottom:1px solid var(--rule);width:100%;padding:6px 10px;font-size:12px;display:block}.find-results button:hover{background:var(--marker-soft)}.find-results mark{background:var(--marker-soft);color:inherit}.text-scroll{min-height:0;padding:20px 24px 60vh;overflow:hidden auto}.paper-text{max-width:720px;font-family:var(--paperface);color:var(--ink);overflow-wrap:anywhere;margin:0 auto;font-size:15.5px;line-height:1.65}.paper-text .jump-flash{animation:1.8s ease-out jumpflash}@keyframes jumpflash{0%,50%{background:var(--marker-soft)}to{background:0 0}}.text-credit{max-width:720px;margin:24px auto 0;font-size:12px}.plain-article .page-mark{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted);border-top:1px solid var(--rule);margin:24px 0 12px;padding-top:6px;font-size:11px}.plain-article .page-mark:first-child{border-top:0;margin-top:0}.plain-article p{margin:0 0 .8em}.plain-article h2{margin:1.6em 0 .5em;scroll-margin-top:12px;font-size:21px;font-weight:500}.plain-article h3{margin:1.3em 0 .4em;scroll-margin-top:12px;font-size:17px;font-weight:500}.plain-article .page-mark+h2,.plain-article .page-mark+h3{margin-top:.4em}.plain-article p.caption{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--ink-2);background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);margin:1em 0;padding:10px 12px;font-size:13px;line-height:1.5}.plain-article ul,.plain-article ol{margin:0 0 .85em;padding-left:1.4em}.plain-article li{margin-bottom:.3em}.ltx .ltx_title_document{margin:0 0 12px;font-size:26px;font-weight:500;line-height:1.25}.ltx .ltx_authors{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--ink-2);margin-bottom:16px;font-size:13.5px}.ltx .ltx_authors .ltx_personname{color:var(--ink);font-weight:600}.ltx .ltx_authors .ltx_contact{color:var(--muted);margin-right:8px;display:inline-block}.ltx .ltx_author_notes,.ltx .ltx_role_affiliation{color:var(--muted);font-size:12.5px;display:block}.ltx .ltx_abstract{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);margin:16px 0 20px;padding:14px 16px}.ltx .ltx_abstract .ltx_title{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--muted);margin:0 0 6px;font-size:11.5px;font-weight:600}.ltx .ltx_keywords{color:var(--muted);font-size:13px}.ltx .ltx_title_section{margin:1.8em 0 .5em;scroll-margin-top:12px;font-size:21px;font-weight:500}.ltx .ltx_title_subsection{margin:1.4em 0 .4em;scroll-margin-top:12px;font-size:17.5px;font-weight:500}.ltx .ltx_title_subsubsection,.ltx .ltx_title_paragraph{margin:1.2em 0 .3em;scroll-margin-top:12px;font-size:15.5px;font-weight:600}.ltx .ltx_title_paragraph{margin-right:6px;display:inline}.ltx .ltx_tag{color:var(--muted)}.ltx .ltx_title .ltx_tag{color:var(--marker);-webkit-text-stroke:.5px var(--ink-2);margin-right:4px}.ltx .ltx_p{margin:0 0 .85em}.ltx .ltx_para{scroll-margin-top:12px}.ltx .ltx_font_italic{font-style:italic}.ltx .ltx_font_bold{font-weight:600}.ltx .ltx_font_typewriter{font-family:var(--ui);font-variation-settings:var(--ui-vs);font-size:.9em}.ltx .ltx_font_smallcaps{font-variant:small-caps}.ltx a.ltx_ref,.ltx .ltx_cite a{color:var(--blue);text-decoration:none}.ltx .ltx_cite{font-family:var(--read);font-variation-settings:var(--read-vs);font-size:.85em}.ltx .ltx_ref_tag{font-family:var(--read);font-variation-settings:var(--read-vs);font-size:.9em}.ltx .ltx_equation,.ltx .ltx_equationgroup{border-collapse:collapse;max-width:100%;margin:.6em 0 1em;display:block;overflow:auto hidden}.ltx .ltx_equation>tbody,.ltx .ltx_equationgroup>tbody{width:100%;display:table}.ltx .ltx_equation td{vertical-align:middle;border:0;padding:4px}.ltx .ltx_eqn_cell{text-align:center}.ltx .ltx_eqn_eqno{text-align:right;width:3em;color:var(--muted);font-family:var(--read);font-variation-settings:var(--read-vs);white-space:nowrap;font-size:13px}.ltx .ltx_eqn_pad{width:1em}.ltx math{font-size:1.05em}.ltx .ltx_Math{white-space:normal}.ltx .ltx_figure,.ltx .ltx_table,.ltx .ltx_float{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);margin:1.4em 0;padding:12px;overflow-x:auto}.ltx .ltx_figure img,.ltx .ltx_figure_panel{max-width:100%;height:auto;margin:0 auto;display:block}.ltx .ltx_flex_figure,.ltx .ltx_flex_cell{display:block}.ltx .ltx_caption{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--ink-2);margin-top:10px;font-size:13px;line-height:1.5}.ltx .ltx_caption .ltx_tag{color:var(--ink);font-weight:600}:root[data-theme=dark] .ltx img{filter:invert(.92)hue-rotate(180deg)}.ltx .ltx_tabular{border-collapse:collapse;font-family:var(--read);font-variation-settings:var(--read-vs);margin:.4em auto;font-size:13px}.ltx .ltx_tabular td,.ltx .ltx_tabular th{vertical-align:top;padding:4px 8px}.ltx .ltx_tabular .ltx_border_t,.ltx .ltx_tabular .ltx_border_tt{border-top:1px solid var(--rule-2)}.ltx .ltx_tabular .ltx_border_b,.ltx .ltx_tabular .ltx_border_bb{border-bottom:1px solid var(--rule-2)}.ltx .ltx_tabular .ltx_border_l{border-left:1px solid var(--rule-2)}.ltx .ltx_tabular .ltx_border_r{border-right:1px solid var(--rule-2)}.ltx .ltx_align_center{text-align:center}.ltx .ltx_align_right{text-align:right}.ltx .ltx_align_left{text-align:left}.ltx .ltx_itemize,.ltx .ltx_enumerate{margin:0 0 .85em;padding-left:1.4em}.ltx .ltx_item{margin-bottom:.3em}.ltx .ltx_item>.ltx_tag{display:none}.ltx .ltx_note_mark{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--blue);vertical-align:super;font-size:.75em;line-height:0}.ltx .ltx_note_outer{display:none}.ltx .ltx_note:hover .ltx_note_outer,.ltx .ltx_note:focus-within .ltx_note_outer{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--ink-2);background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);margin:0 4px;padding:4px 8px;font-size:12.5px;display:inline}.ltx .ltx_note_outer .ltx_note_mark,.ltx .ltx_note_type{display:none}.ltx .ltx_bibliography .ltx_title{margin:1.8em 0 .5em;font-size:21px;font-weight:500}.ltx .ltx_biblist{font-size:13.5px;font-family:var(--read);font-variation-settings:var(--read-vs);margin:0;padding:0;list-style:none}.ltx .ltx_bibitem{grid-template-columns:3.2em 1fr;gap:0 8px;margin-bottom:8px;scroll-margin-top:12px;display:grid}.ltx .ltx_bibitem .ltx_tag_bibitem{color:var(--muted);font-family:var(--ui);font-variation-settings:var(--ui-vs);font-size:12px}.ltx .ltx_bibitem .ltx_bibblock{display:inline}.ltx .ltx_bibitem .ltx_bibblock+.ltx_bibblock:before{content:" "}.ltx .ltx_bibitem>.ltx_bibblock:first-of-type,.ltx .ltx_bibitem .ltx_bibblock:not(:first-of-type){grid-column:2}.ltx .ltx_appendix .ltx_title_appendix{margin:1.8em 0 .5em;font-size:21px;font-weight:500}.ltx .ltx_rule{border:0;border-top:1px solid var(--rule)}.ltx .ltx_theorem{border-left:3px solid var(--marker);background:var(--paper);margin:1em 0;padding:10px 14px}.ltx .ltx_theorem .ltx_title{font-family:var(--read);font-variation-settings:var(--read-vs);margin:0 0 4px;font-size:14px;font-weight:600}.ltx .ltx_listing,.ltx .ltx_verbatim{font-family:var(--ui);font-variation-settings:var(--ui-vs);background:var(--ground);border:1px solid var(--rule);border-radius:var(--radius);white-space:pre;padding:10px;font-size:12.5px;overflow-x:auto}.ltx .ltx_ERROR,.ltx .ltx_missing{color:var(--red);font-family:var(--ui);font-variation-settings:var(--ui-vs);font-size:.85em}.ltx .ltx_TOC,.ltx .ltx_page_logo,.ltx .ltx_dates{display:none}@media (max-width:700px){.text-scroll{padding:12px 12px 50vh}.paper-text{font-size:15px;line-height:1.6}.ltx .ltx_title_document{font-size:22px}.ltx .ltx_title_section{font-size:19px}.ltx .ltx_figure,.ltx .ltx_table,.ltx .ltx_float{padding:8px}.ltx .ltx_bibitem{grid-template-columns:2.6em 1fr}}.side{background:var(--ground);grid-template-rows:auto 1fr auto;min-width:0;min-height:0;display:grid}.pane-host{grid-template-rows:1fr;min-height:0;display:grid}.pane{min-height:0;padding:14px 16px 60px;overflow:auto}.pane-head{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:12px;display:flex}.pane-head .grow{flex:1}.section-card{content-visibility:auto;contain-intrinsic-size:auto 320px;background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);margin-bottom:10px;padding:12px 16px 12px 18px;scroll-margin-top:12px;position:relative}.section-card:before{content:"";border-radius:var(--radius);background:0 0;width:4px;transition:background .2s;position:absolute;top:10px;bottom:10px;left:-1px}.section-card.active{border-color:var(--rule-2)}.section-card.sub{margin-left:18px}.section-card .head{cursor:pointer;align-items:baseline;gap:8px;display:flex}.section-card .head .chev{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted);padding:0 4px;font-size:11px}.section-card .head h3{font-family:var(--read);font-variation-settings:var(--read-vs);flex:1;margin:0;font-size:16px;font-weight:500}.section-card .head .page{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted);font-size:11px}.section-card .gist.prose{font-family:var(--ui);font-variation-settings:var(--ui-vs);line-height:1.45}.section-card .gist.prose p{margin:0}.section-card .body{margin-top:6px}.section-card.collapsed .body,.section-card.collapsed .gist{display:none}.section-card .foot{flex-wrap:wrap;align-items:center;gap:6px;margin-top:8px;display:flex}.versions{border:1px solid var(--rule);border-radius:var(--radius);margin-left:auto;display:inline-flex;overflow:hidden}.versions button{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted);background:var(--paper);padding:2px 8px;font-size:11px}.versions button+button{border-left:1px solid var(--rule)}.section-card .pending{color:var(--muted);font-size:12px;font-style:italic}.understood{color:var(--green)}.progress{background:var(--rule);border-radius:var(--radius);flex:1;min-width:80px;height:4px;overflow:hidden}.progress>div{background:var(--marker);height:100%;transition:width .3s}.prose{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--ink);font-size:14.5px;line-height:1.62}.prose>:first-child{margin-top:0}.prose>:last-child{margin-bottom:0}.prose p{margin:0 0 .75em}.prose h3,.prose h2,.prose h4{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted);margin:1.2em 0 .4em;font-size:11.5px;font-weight:600}.prose h3:before{content:"¶ ";color:var(--marker);-webkit-text-stroke:.5px var(--ink-2)}.prose ul,.prose ol{margin:0 0 .75em;padding-left:1.3em}.prose li{margin-bottom:.25em}.prose code{font-family:var(--ui);font-variation-settings:var(--ui-vs);background:var(--blue-soft);border-radius:var(--radius);padding:1px 4px;font-size:.88em}.prose pre{background:var(--ground);border:1px solid var(--rule);border-radius:var(--radius);padding:10px;font-size:12.5px;overflow-x:auto}.prose pre code{background:0 0;padding:0}.prose table{border-collapse:collapse;font-family:var(--ui);font-variation-settings:var(--ui-vs);width:100%;margin:.4em 0 .9em;font-size:13px}.prose th,.prose td{border:1px solid var(--rule);text-align:left;vertical-align:top;padding:5px 8px}.prose th{background:var(--ground);font-weight:600}.prose blockquote{border-left:3px solid var(--marker);color:var(--ink-2);margin:0 0 .75em;padding:2px 12px}.prose a.pref{font-family:var(--ui);font-variation-settings:var(--ui-vs);background:var(--marker-soft);color:var(--ink);border-radius:var(--radius);white-space:nowrap;padding:0 4px;font-size:.85em;text-decoration:none}.prose a.pref:hover{background:var(--marker)}.prose .katex{white-space:nowrap;font-size:1.04em}.prose .katex-display{background:var(--ground);border:1px solid var(--rule);border-radius:var(--radius);margin:.6em 0 .8em;padding:10px 14px;overflow:auto hidden}.prose .katex-display>.katex{white-space:nowrap;font-size:1.15em}.prose .katex-display::-webkit-scrollbar{height:6px}.prose strong{font-weight:600}.cursor:after{content:"▍";color:var(--marker);animation:1s steps(2,end) infinite blink}@keyframes blink{50%{opacity:0}}.lens-input{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);flex-direction:column;gap:10px;margin-bottom:12px;padding:12px;display:flex}.lens-input .selection{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--ink-2);border-left:3px solid var(--marker);white-space:pre-wrap;max-height:120px;padding:2px 10px;font-size:13.5px;overflow:auto}.lens-input .selection.empty{border-left-color:var(--rule-2);color:var(--muted);font-style:italic}.lens-input img{border:1px solid var(--rule);border-radius:var(--radius);align-self:flex-start;max-width:100%;max-height:220px}.modes{flex-wrap:wrap;gap:6px;display:flex}.lens-card{content-visibility:auto;contain-intrinsic-size:auto 240px;background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);margin-bottom:10px;padding:12px 16px}.lens-card .meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:8px;font-size:12px;display:flex}.lens-card .meta .grow{flex:1}.lens-card .quote{font-family:var(--read);font-variation-settings:var(--read-vs);color:var(--ink-2);border-left:3px solid var(--marker);max-height:80px;margin-bottom:8px;padding:1px 10px;font-size:13px;overflow:hidden}.lens-card img{border:1px solid var(--rule);border-radius:var(--radius);max-width:100%;max-height:180px;margin-bottom:8px}.chat{grid-template-rows:1fr auto;height:100%;min-height:0;display:grid}.chat-log{flex-direction:column;gap:12px;padding:14px 16px;display:flex;overflow:auto}.msg{max-width:92%}.msg.user{background:var(--ink);color:var(--ground);border-radius:var(--radius);white-space:pre-wrap;align-self:flex-end;padding:8px 12px;font-size:14px}.msg.user .focus{opacity:.75;border-left:2px solid var(--marker);max-height:60px;margin-bottom:6px;padding-left:8px;font-size:11.5px;overflow:hidden}.msg.assistant{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);align-self:flex-start;padding:10px 14px}.chat-input{border-top:1px solid var(--rule);background:var(--paper);flex-direction:column;gap:8px;padding:10px 12px;display:flex}.chat-input .row{align-items:flex-end;gap:8px;display:flex}.chat-input textarea{flex:1;min-height:42px;max-height:160px}.focus-chip{background:var(--marker-soft);border-radius:var(--radius);align-items:center;gap:6px;max-width:100%;padding:4px 8px;font-size:12px;display:inline-flex}.focus-chip span{text-overflow:ellipsis;white-space:nowrap;font-family:var(--read);font-variation-settings:var(--read-vs);overflow:hidden}.suggestions{flex-wrap:wrap;gap:6px;display:flex}.study-block{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);margin-bottom:12px;padding:14px 16px}.study-block>.head{align-items:center;gap:8px;margin-bottom:8px;display:flex}.study-block>.head h3{color:var(--muted);flex:1;margin:0;font-size:12px;font-weight:600}.one-liner{font-family:var(--read);font-variation-settings:var(--read-vs);margin:0 0 10px;font-size:18px;line-height:1.4}.prereq{grid-template-columns:auto 1fr;gap:4px 12px;font-size:13px;display:grid}.prereq b{font-weight:600}.glossary dl{grid-template-columns:max-content 1fr;gap:6px 14px;margin:0;font-size:13.5px;display:grid}.glossary dt{font-weight:600;font-family:var(--read);font-variation-settings:var(--read-vs)}.glossary dd{color:var(--ink-2);margin:0}.glossary dd .pref{margin-left:6px}.flash{border:1px solid var(--rule-2);border-radius:var(--radius);cursor:pointer;background:var(--ground);margin-bottom:8px;padding:12px}.flash .q{font-family:var(--read);font-variation-settings:var(--read-vs);font-size:14.5px}.flash .a{border-top:1px dashed var(--rule-2);color:var(--ink-2);margin-top:8px;padding-top:8px;font-size:13.5px}.flash.known{border-color:var(--green)}.flash .rate{gap:6px;margin-top:8px;display:flex}.refs{margin:0;padding-left:2.2em;font-size:13px}.refs li{border-radius:var(--radius);margin-bottom:8px;padding:2px 4px;scroll-margin-top:12px}.refs li::marker{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted)}.refs li.flash-ref{background:var(--marker-soft)}.refs .ref-links{vertical-align:middle;gap:4px;margin-left:6px;display:inline-flex}.refs .ref-links a{text-decoration:none}.drawer-bg{z-index:40;background:#1b1f2a4d;position:fixed;inset:0}.drawer{background:var(--paper);border-left:1px solid var(--rule);z-index:41;flex-direction:column;gap:16px;width:360px;max-width:100vw;padding:20px;animation:.15s ease-out slide;display:flex;position:fixed;top:0;bottom:0;right:0;overflow:auto}@keyframes slide{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:none}}.drawer h2{font-family:var(--read);font-variation-settings:var(--read-vs);margin:0;font-size:20px;font-weight:500}.field{flex-direction:column;gap:5px;display:flex}.field .help{color:var(--muted);font-size:12px}.shortcuts{grid-template-columns:auto 1fr;gap:4px 12px;font-size:13px;display:grid}.shortcuts kbd{font-family:var(--ui);font-variation-settings:var(--ui-vs);border:1px solid var(--rule-2);border-radius:var(--radius);border-bottom-width:2px;padding:0 5px;font-size:11px}.spinner{border:2px solid var(--rule-2);border-top-color:var(--ink);border-radius:50%;width:12px;height:12px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}html.app-shell,html.app-shell body{overscroll-behavior:none;height:100%;overflow:hidden}html.app-shell body{width:100%;position:fixed;inset:0}html.app-shell .pane,html.app-shell .chat-log,html.app-shell .pdf-scroll,html.app-shell .drawer{overscroll-behavior:contain}.pdf-scroll.capturing{touch-action:none;cursor:crosshair}.pdf-scroll.capturing .react-pdf__Page__textContent{pointer-events:none}.popover.sheet{top:auto;left:0;right:0;bottom:calc(var(--mobile-nav) + env(safe-area-inset-bottom));border-radius:var(--radius);justify-content:center;max-width:none;padding:10px 10px 12px;animation:.15s ease-out sheet;position:fixed;box-shadow:0 -6px 24px #1b1f2a2e}@keyframes sheet{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.popover.sheet .btn{padding:8px 12px;font-size:14px}@media (max-width:700px){:root{--topbar:46px;--mobile-nav:56px}body{font-size:15px}.btn{padding:7px 12px;font-size:14px}.btn.small{padding:5px 10px;font-size:13px}.input,.textarea,.select{padding:9px 10px;font-size:16px}.reader.mobile{grid-template-rows:var(--topbar) minmax(0, 1fr) auto auto;width:100%;max-width:100vw;overflow:hidden}.reader.mobile>*,.mobile-body>.stage,.mobile-body>.side,.pane-host,.pdf-pane,.pane,.chat,.chat-log,.chat-input{min-width:0;max-width:100%}.mobile-nav{scrollbar-width:none;overflow:auto hidden}.mobile-nav::-webkit-scrollbar{display:none}.mobile-nav button{flex:1 0 auto;min-width:62px;padding:0 6px}.pane{overflow-wrap:anywhere;overflow:hidden auto}.chat-log{overflow-x:hidden}.msg,.section-card,.lens-card,.study-block,.flash,.pane-head>*{min-width:0;max-width:100%}.prose,.msg.user,.one-liner,.lens-input .selection{overflow-wrap:anywhere}.prose .katex{white-space:normal}.prose .katex-display{max-width:100%;padding:8px 10px}.prose .katex-display>.katex{white-space:nowrap}.pane-head .select{max-width:100%}.mobile-body{grid-template-rows:1fr;grid-template-columns:1fr;min-height:0;display:grid}.mobile-body>.stage{grid-area:1/1;grid-template-rows:1fr;min-height:0;display:grid}.mobile-body>.stage.offstage{visibility:hidden;pointer-events:none}.mobile-body>.stage>.pdf-pane,.mobile-body>.side{min-height:0}.mobile-nav{min-height:calc(var(--mobile-nav) + env(safe-area-inset-bottom));border-top:1px solid var(--rule);background:var(--paper);padding-bottom:env(safe-area-inset-bottom);display:flex}.mobile-nav button{color:var(--muted);border-top:2px solid #0000;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:2px;font-size:11px;font-weight:500;display:flex;position:relative}.mobile-nav button .ico{font-size:18px;line-height:1}.mobile-nav button .sub{color:var(--muted);font-size:10px}.mobile-nav button.active{color:var(--ink);border-top-color:var(--marker);background:var(--marker-soft)}.mobile-nav button .spinner{position:absolute;top:6px;right:12px}.pdf-toolbar{scrollbar-width:none;gap:4px;padding:6px;overflow-x:auto}.pdf-toolbar::-webkit-scrollbar{display:none}.pdf-toolbar>*{flex-shrink:0}.pdf-toolbar .btn{min-height:32px}.pdf-toolbar .seg{border-width:1.5px;min-height:32px}.pdf-toolbar .seg button{padding:6px 12px;font-size:13px;font-weight:600}.pdf-toolbar .seg button.on{background:var(--marker);color:#1b1f2a}.pdf-toolbar .find-box .input{width:84px!important}.pdf-scroll{touch-action:pan-x pan-y;padding:8px 0 40vh}.pdf-scroll>.react-pdf__Document{will-change:transform}.pdf-page-wrap{margin-bottom:8px}.pdf-page-wrap .page-num{top:4px;right:4px}.pdf-hint{text-align:center;max-width:92vw;font-size:12px;bottom:12px}.find-results{width:auto;left:8px;right:8px}.pane{padding:10px 10px 40px}.pane-head{gap:6px 8px;margin-bottom:10px}.section-card{margin-bottom:8px;padding:10px 10px 10px 14px}.section-card.sub{margin-left:6px}.section-card .head h3{font-size:15px}.prose{font-size:14.5px;line-height:1.55}.lens-card,.study-block,.chat-log{padding:10px}.msg{max-width:96%}.chat-input{padding:8px}.drawer{width:100vw;padding:16px}.glossary dl{grid-template-columns:1fr;gap:2px 0}.glossary dd{margin-bottom:8px}.prereq{grid-template-columns:1fr}.prose table{display:block;overflow-x:auto}}.player{border-top:1px solid var(--rule);background:var(--paper);min-width:0;font-size:12.5px;overflow:hidden}.player .timeline{cursor:pointer;gap:2px;height:8px;padding:2px 10px 0;display:flex}.player .timeline .seg{background:var(--rule);border-radius:var(--radius);flex:1 1 0;min-width:4px;position:relative;overflow:hidden}.player .timeline .seg.done{background:var(--marker);opacity:.55}.player .timeline .seg.cur{background:var(--rule-2)}.player .timeline .seg .fill{background:var(--marker);transition:width .25s linear;position:absolute;inset:0 auto 0 0}.player .timeline:hover .seg{filter:brightness(1.15)}::highlight(speaking){background-color:var(--marker-soft);color:var(--ink)}:root[data-theme=dark] ::highlight(speaking){background-color:#e6c93a59}.section-card .head .listen{min-width:28px;color:var(--muted);padding:0 8px;font-size:12px;line-height:20px}.section-card .head .listen.listening,.section-card .head .listen:hover{color:var(--ink)}.player .row{align-items:center;gap:6px;padding:6px 10px;display:flex}.player .play{border-radius:var(--radius);background:var(--ink);width:34px;height:34px;color:var(--ground);border-color:#0000;justify-content:center;align-items:center;font-size:14px;display:inline-flex}.player .play:hover:not(:disabled){background:var(--ink-2)}.player .what{flex:1;min-width:0}.player .what .title{white-space:nowrap;text-overflow:ellipsis;font-weight:500;overflow:hidden}.player .what .now{white-space:nowrap;text-overflow:ellipsis;font-family:var(--read);font-variation-settings:var(--read-vs);font-size:12px;overflow:hidden}.player .what .err{color:var(--red)}.player .what .notice-line{color:var(--muted);font-size:11.5px}.player .rate{padding:2px 20px 2px 6px;font-size:12px}.player .engine:empty{display:none}.player.loading .play .spinner{border-top-color:var(--ground)}.btn.listening{background:var(--marker-soft);border-color:#0000}.section-card.speaking{border-color:var(--marker);box-shadow:0 0 0 2px var(--marker-soft)}.msg-tools{justify-content:flex-end;margin-top:4px;display:flex}.btn.voice{color:var(--muted)}.btn.voice:hover:not(:disabled){color:var(--ink)}.btn.voice.danger{color:var(--red)}.section-card .head .voice{white-space:nowrap;padding:0 6px;font-size:11px;line-height:20px}.section-card .head .listen:disabled{opacity:.35}:root[data-tts-active] [data-speech-id] .prose{cursor:pointer}:root[data-tts-active] [data-speech-id] .prose ::highlight(speaking){cursor:default}.hand{font-family:Patrick Hand,Segoe Print,Comic Sans MS,cursive}.watch-intro{text-align:center;padding:36px 20px}.watch-intro .row{flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;margin-top:18px;display:flex}.watch-intro .small,.watch .small{font-size:12px}.watch-intro .small{margin-top:16px}.watch-intro .plan{text-align:left;max-width:520px;margin:18px auto 0;font-size:13px}.watch-intro .plan li{margin-bottom:4px}.watch{padding-top:10px}.watch .pane-head{margin-bottom:8px}.screen{aspect-ratio:16/9;background:var(--paper);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--rule);position:relative;overflow:hidden}.screen .board-canvas{cursor:pointer;width:100%;height:100%;display:block}.screen .subtitle{text-align:center;pointer-events:none;position:absolute;bottom:5%;left:6%;right:6%}.screen .subtitle span{color:#fff;font-family:var(--read);font-variation-settings:var(--read-vs);-webkit-box-decoration-break:clone;box-decoration-break:clone;border-radius:var(--radius);background:#14161cc7;padding:3px 10px;font-size:clamp(13px,1.9vw,22px);line-height:1.5;display:inline}.screen .overlay{pointer-events:none;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.screen .overlay .big-play{pointer-events:auto;border-radius:var(--radius);background:var(--ink);width:84px;height:84px;color:var(--ground);justify-content:center;align-items:center;padding-left:6px;font-size:34px;display:inline-flex;box-shadow:0 8px 30px #0000004d}.screen .overlay .big-play:hover{background:var(--ink-2)}.screen .overlay .big-play .spinner{border-width:3px;border-top-color:var(--ground);width:28px;height:28px;padding:0}.screen .fullbtn{border-radius:var(--radius);color:#fff;opacity:0;background:#14161c8c;justify-content:center;align-items:center;width:34px;height:34px;font-size:16px;transition:opacity .15s;display:inline-flex;position:absolute;bottom:10px;right:12px}:is(.screen:hover .fullbtn,.screen.full .fullbtn,.screen:fullscreen .fullbtn){opacity:1}.screen.full:not(:fullscreen){z-index:60;aspect-ratio:auto;border-radius:var(--radius);background:#000;border:0;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.screen.full:not(:fullscreen) .board-canvas{aspect-ratio:16/9;width:auto;max-width:100vw;height:auto;max-height:100vh;margin:auto}.screen:fullscreen{background:#000;justify-content:center;align-items:center;display:flex}.screen:fullscreen .board-canvas{aspect-ratio:16/9;width:auto;max-width:100vw;height:auto;max-height:100vh}:is(.screen.full .corner,.screen:fullscreen .corner),.caption-line{display:none}.screen .corner{color:var(--muted);background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);opacity:.9;padding:1px 8px;font-size:12px;position:absolute;top:10px;right:12px}.transport{flex-wrap:wrap;align-items:center;gap:8px;padding:10px 2px 4px;display:flex}.transport .play{border-radius:var(--radius);background:var(--ink);width:36px;height:36px;color:var(--ground);border-color:#0000;justify-content:center;align-items:center;font-size:15px;display:inline-flex}.transport .play:hover:not(:disabled){background:var(--ink-2)}.transport .play .spinner{border-top-color:var(--ground)}.transport .time{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted);white-space:nowrap;font-size:12px}.transport .grow{flex:1}.transport .rate{padding:2px 20px 2px 6px;font-size:12px}.chapters{cursor:pointer;gap:2px;height:10px;margin:2px 0 10px;display:flex}.chapters .seg{background:var(--rule);border-radius:var(--radius);flex:1 1 0;min-width:3px;position:relative;overflow:hidden}.chapters .seg.done{background:var(--marker);opacity:.6}.chapters .seg.cur{background:var(--rule-2)}.chapters .seg .fill{background:var(--marker);transition:width .25s linear;position:absolute;inset:0 auto 0 0}.chapters .seg.head{background:var(--ink-2);opacity:.5;flex-grow:0;flex-basis:6px}.chapters:hover .seg{filter:brightness(1.1)}.script{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);margin-top:4px;padding:10px 14px}.script .head{align-items:baseline;gap:10px;margin-bottom:6px;display:flex}.script .head h3{flex:1;min-width:0;margin:0;font-family:Patrick Hand,Segoe Print,cursive;font-size:20px;font-weight:400}.script .head .muted{font-size:12px}.script p{font-family:var(--read);font-variation-settings:var(--read-vs);margin:0;font-size:14.5px;line-height:1.65}.script p span{cursor:pointer;border-radius:var(--radius);padding:0 2px}.script p span:hover{background:var(--blue-soft)}.script p span.now{background:var(--marker-soft)}.script p span.done{color:var(--ink-2)}.scene-list{margin:12px 0 0;padding:0;list-style:none}.scene-list li.segment{color:var(--muted);margin:10px 0 2px 8px;font-family:Patrick Hand,Segoe Print,cursive;font-size:16px}.scene-list li.segment:first-child{margin-top:0}.scene-list li button{text-align:left;border-radius:var(--radius);grid-template-columns:44px 1fr auto;align-items:baseline;gap:10px;width:100%;padding:5px 8px;font-size:13.5px;display:grid}.scene-list li button:hover{background:var(--blue-soft)}.scene-list li.active button{background:var(--marker-soft)}.scene-list li .n{color:var(--muted);font-family:var(--ui);font-variation-settings:var(--ui-vs);font-size:11.5px}.scene-list li .t{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.scene-list li.pending{padding:6px 8px}.export-row{flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px;font-size:12px;display:flex}.export-row progress{width:160px;height:8px}@media (max-width:700px){.screen{border-radius:var(--radius)}.screen .overlay .big-play{width:64px;height:64px;font-size:26px}.screen .fullbtn{opacity:1;width:30px;height:30px;font-size:14px;bottom:6px;right:6px}:is(.screen:not(.full):not(:fullscreen) .subtitle,.screen:not(.full):not(:fullscreen) .corner){display:none}.caption-line{font-family:var(--read);font-variation-settings:var(--read-vs);min-height:44px;margin:8px 2px 0;font-size:15px;line-height:1.5;display:block}.screen.full .caption-line,.transport .rate,.transport .engine{display:none}.scene-list li button{grid-template-columns:36px 1fr auto}}.lab-pane .small{font-size:12px}.lab-empty{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:14px 16px}.lab-empty p{margin:0 0 8px}.lab-sim{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);min-width:0;margin-bottom:12px;padding:14px 16px}.lab-sim>.head{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.lab-sim>.head h3{margin:0;font-size:15px;font-weight:600}.lab-sim .grow{flex:1}.lab-claim{color:var(--ink-2);font-family:var(--read);font-variation-settings:var(--read-vs);margin:6px 0 8px}.lab-sections{align-items:center;margin-bottom:10px}.lab-sections .chip{cursor:pointer}.lab-status.ok,.lab-status.repaired{color:var(--green);background:#2e7d4f1f}.lab-status.fallback{background:var(--marker-soft);color:var(--ink)}.lab-status.unverified{background:var(--rule);color:var(--muted)}.lab-frame{border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);width:100%;display:block}.lab-broken{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;display:flex}.lab-repairs{margin-top:8px}.lab-repairs ol{color:var(--muted);white-space:pre-wrap;margin:4px 0 0;padding-left:18px}.lab-chip{cursor:pointer;border:0}.lab-widget h4{margin:0 0 8px;font-size:13px;font-weight:600}.lab-widget p{margin:8px 0}.lab-sliders{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:8px 16px;margin-bottom:10px;display:grid}.lab-sliders label{color:var(--muted);flex-direction:column;gap:2px;font-size:12px;display:flex}.lab-sliders b{color:var(--ink);font-family:var(--ui);font-variation-settings:var(--ui-vs);font-weight:500}.lab-sliders input{width:100%}.lab-plot{width:100%;height:auto;display:block}.lab-plot text{fill:var(--muted);font-size:11px;font-family:var(--ui);font-variation-settings:var(--ui-vs)}.lab-plot .axis{stroke:var(--rule-2);stroke-width:1px}.lab-readouts{flex-wrap:wrap;gap:6px 14px;margin-top:6px;font-size:12px;display:flex}.lab-readouts i{border-radius:var(--radius);vertical-align:-1px;width:10px;height:10px;display:inline-block}.lab-readouts b{font-family:var(--ui);font-variation-settings:var(--ui-vs);font-weight:500}.lab-bars .row{grid-template-columns:minmax(70px,30%) 1fr auto;align-items:center;gap:8px;margin:4px 0;font-size:12px;display:grid}.lab-bars .label{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.lab-bars .track{background:var(--ground);border-radius:var(--radius);height:12px;overflow:hidden}.lab-bars .fill{height:100%;transition:width .15s;display:block}.lab-bars b{font-family:var(--ui);font-variation-settings:var(--ui-vs);font-weight:500}.lab-group{margin-top:8px}.lab-steps-nav{flex-wrap:wrap;align-items:center;gap:6px;font-size:12px;display:flex}.lab-steps{flex-wrap:wrap;gap:4px;margin:10px 0 0;padding:0;list-style:none;display:flex}.lab-steps li{border-radius:var(--radius);border:1px solid var(--rule-2);color:var(--muted);cursor:pointer;padding:2px 8px;font-size:12px}.lab-steps li.done{color:var(--ink-2)}.lab-steps li.on{background:var(--marker-soft);color:var(--ink);border-color:#0000}.lab-values{border-collapse:collapse;font-size:12px}.lab-values th{text-align:left;color:var(--muted);padding:2px 12px 2px 0;font-weight:500}.lab-values td{font-family:var(--ui);font-variation-settings:var(--ui-vs)}.lab-progress{margin-bottom:10px}.lab-progress p{margin:0 0 4px}.lab-elapsed{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--muted)}body{font-size:13px}:focus-visible{outline:1px solid var(--marker);outline-offset:1px}a{color:var(--teal)}.acc{color:var(--marker)}.ok{color:var(--green)}.grow{flex:1}.spin:before{content:"⠋";width:1.4ch;color:var(--marker);font-variation-settings:var(--ui-vs);animation:.8s step-end infinite braille;display:inline-block}@keyframes braille{0%{content:"⠋"}12%{content:"⠙"}25%{content:"⠹"}37%{content:"⠸"}50%{content:"⠼"}62%{content:"⠴"}75%{content:"⠦"}87%{content:"⠧"}}.spinner{border-radius:50%}.btn{border-color:var(--rule);color:var(--ink-2);background:0 0;padding:5px 10px;font-size:12.5px;font-weight:400}.btn:hover:not(:disabled){border-color:var(--rule-2);background:var(--hover);color:var(--ink)}.btn.primary{background:var(--marker-soft);color:var(--marker);border-color:var(--marker-line)}.btn.primary:hover:not(:disabled){background:var(--marker-soft);color:var(--marker);border-color:var(--marker)}.btn.quiet:hover:not(:disabled){background:var(--hover)}.btn.active{background:var(--marker-soft);border-color:var(--marker-line);color:var(--marker)}.btn.small{padding:3px 8px;font-size:12px}.input,.textarea,.select{background:var(--ground);border-color:var(--rule)}.input:focus,.textarea:focus,.select:focus{border-color:var(--marker-line);box-shadow:none}.select{padding:3px 24px 3px 8px;font-size:12.5px}.chip{background:var(--hover);color:var(--ink-2);font-size:11.5px;font-weight:400}.chip.marker{background:var(--marker-soft);color:var(--marker)}.error{border-color:var(--red);color:var(--red);background:0 0}.error:before{content:"! ";font-weight:600}.notice{background:var(--hover);color:var(--ink-2)}.seg{border-color:var(--rule)}.seg button{background:0 0;font-weight:400}.seg button+button{border-left-color:var(--rule)}.seg button.on{background:var(--hover);color:var(--ink)}.tbtn{color:var(--muted);white-space:nowrap;padding:0 2px}.tbtn:hover,.tbtn.on{color:var(--marker)}.flags{flex-wrap:wrap;align-items:center;gap:2px;font-size:12px;display:inline-flex}.flags>.muted{margin-right:4px}.flags button{border-radius:var(--radius);color:var(--ink-2);white-space:nowrap;padding:1px 7px}.flags button:hover{background:var(--hover);color:var(--ink)}.flags button.on{background:var(--marker-soft);color:var(--marker);box-shadow:inset 0 0 0 1px var(--marker-line)}.flag-step{border:1px solid var(--rule);border-radius:var(--radius);white-space:nowrap;align-items:center;gap:4px;height:32px;padding:0 10px;font-size:12.5px;display:inline-flex}.flag-step b{color:var(--marker);font-weight:400}.reader.term{grid-template-rows:auto minmax(0, 1fr) var(--statusbar);background:var(--ground);gap:12px;height:100%;padding:8px 8px 0;display:grid}.prompt-bar{border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);align-items:center;gap:10px;min-width:0;min-height:38px;padding:0 8px 0 12px;font-size:12.5px;display:flex}.prompt-bar .crumb{white-space:nowrap;text-decoration:none}.prompt-bar .title{white-space:nowrap;text-overflow:ellipsis;min-width:0;color:var(--ink);flex:1;overflow:hidden}.prompt-bar .title input{width:100%;color:var(--ink);background:0 0;border:0;outline:none}.prompt-bar .keys{color:var(--muted);white-space:nowrap;gap:12px;font-size:11.5px;display:flex}.prompt-bar .keys b{color:var(--ink-2);font-weight:400}.prompt-bar .gear{padding:0 4px;font-size:14px}@media (max-width:1400px){.prompt-bar .keys{display:none}}.term-grid{grid-template-columns:240px 8px minmax(0,1fr) 8px minmax(0,1fr);min-height:0;display:grid}.term-grid.stacked{grid-template-rows:minmax(0,1fr) 8px minmax(0,1fr);grid-template-columns:minmax(0,1fr)}.term-grid.solo{grid-template-rows:minmax(0,1fr);grid-template-columns:minmax(0,1fr)}.term-grid.solo>*{display:none}.term-grid.solo-paper>.paper-pane,.term-grid.solo-side>.side-pane{display:grid}.tpane{border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);grid-template-rows:minmax(0,1fr);min-width:0;min-height:0;display:grid;position:relative}.tpane.focus{border-color:var(--focus-rule)}.tpane>.ttl{z-index:6;pointer-events:none;align-items:center;gap:8px;font-size:11.5px;line-height:16px;display:flex;position:absolute;top:-9px;left:10px;right:10px}.tpane>.ttl>*{background:var(--ground);pointer-events:auto;white-space:nowrap;padding:0 5px}.tpane>.ttl>.grow{pointer-events:none;background:0 0;padding:0}.tpane>.ttl .name{color:var(--ink-2)}.tpane.focus>.ttl .name{color:var(--marker)}.tpane.collapsed{cursor:pointer}.tpane .strip{width:100%;height:100%;color:var(--ink-2);flex-direction:column;align-items:center;gap:10px;padding:10px 0;font-size:11.5px;display:flex}.tpane .strip:hover{color:var(--marker);background:var(--hover)}.tpane .strip .v{writing-mode:vertical-rl}.handle{cursor:col-resize;touch-action:none;position:relative}.term-grid.stacked .handle{cursor:row-resize}.handle:after{content:"";background:0 0;width:2px;transition:background .12s;position:absolute;top:0;bottom:0;left:3px}.term-grid.stacked .handle:after{width:auto;height:2px;inset:3px 0 auto}.handle:hover:after,.handle.active:after{background:var(--marker)}.handle.off{pointer-events:none;cursor:default}body.dragging{cursor:col-resize;-webkit-user-select:none;user-select:none}body.dragging iframe,body.dragging .react-pdf__Document{pointer-events:none}.tpane .pdf-pane,.tpane .side{border-radius:var(--radius);overflow:hidden}.tpane .side{padding-top:8px}.side{background:var(--paper);grid-template-rows:minmax(0,1fr) auto}.pane{padding:18px 20px 60px}.pdf-pane{background:var(--ground)}.pdf-toolbar{background:var(--paper);border-bottom-color:var(--rule);gap:6px;padding:12px 10px 6px}.pdf-toolbar .page-input{width:40px;padding:2px 4px}.pdf-scroll{padding-top:14px}.pdf-page-wrap{box-shadow:none;outline:1px solid var(--rule)}.pdf-page-wrap.active-page{outline:1px solid var(--marker-line);outline-offset:0}.pdf-page-wrap .page-num{border-radius:var(--radius)}.pdf-hint{border-radius:var(--radius);background:var(--raise);color:var(--ink);border:1px solid var(--rule)}.section-hl{border-left-width:2px}.paper-pane.fit .pdf-scroll{padding:0 0 40vh}.paper-pane.fit .pdf-page-wrap{outline:0;margin:0 0 2px}.paper-pane.fit .text-scroll{padding:0 0 50vh;container-type:inline-size}.paper-pane.fit .paper-text{max-width:none;padding:4cqi 6cqi 0;font-size:clamp(15px,1.9cqi,20px)}.paper-pane.fit .text-credit{max-width:none;padding:0 6cqi}.outline-body{grid-template-rows:minmax(0,1fr) auto;min-height:0;display:grid}.outline-list{padding:16px 6px 10px;overflow:auto}.orow{border-radius:var(--radius);text-align:left;width:100%;color:var(--ink-2);white-space:nowrap;align-items:center;padding:3px 8px;font-size:12.5px;display:flex}.orow:hover{background:var(--hover);color:var(--ink)}.orow.on{background:var(--marker-soft);color:var(--ink)}.orow .br{color:var(--muted);white-space:pre}.orow .mk{width:2ch;color:var(--muted);flex:none}.orow .mk.ok{color:var(--green)}.orow .mk.now{color:var(--marker)}.orow .t{text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}.orow .p{color:var(--muted);padding-left:8px;font-size:11.5px}.outline-sum{border-top:1px dashed var(--rule);color:var(--muted);gap:6px;padding:10px 14px 12px;font-size:11.5px;display:grid}.outline-sum b{color:var(--ink);font-weight:400}.outline-sum .bar{background:var(--rule);border-radius:var(--radius);height:4px;overflow:hidden}.outline-sum .bar i{background:var(--green);height:100%;display:block}.outline-empty{justify-items:start;gap:10px;padding:20px 14px;font-size:12.5px;display:grid}.outline-empty p{margin:0}.tmux{background:var(--raise);border-top:1px solid var(--rule);white-space:nowrap;align-items:center;min-width:0;margin:0 -8px;padding:0 8px 0 0;font-size:11.5px;display:flex;overflow:hidden}.tmux .sess{background:var(--marker-soft);color:var(--marker);align-self:stretch;align-items:center;padding:0 10px;text-decoration:none;display:flex}.tmux .wins{min-width:0;display:flex;overflow:hidden}.tmux .wins button{height:var(--statusbar);color:var(--muted);align-items:center;gap:2px;padding:0 9px;display:inline-flex}.tmux .wins button:hover{color:var(--ink)}.tmux .wins button.on{color:var(--ink);background:var(--hover)}.tmux .seg{color:var(--ink-2);text-overflow:ellipsis;border:0;border-radius:0;padding:0 10px;overflow:hidden}.tmux .seg+.seg{border-left:1px solid var(--rule)}.tmux .seg a{color:inherit;text-decoration:none}.tmux .seg a:hover{color:var(--teal)}@media (max-width:1100px){.tmux .seg:nth-last-child(-n+3){display:none}}.pane-head{gap:8px 12px;font-size:12px}.progress{background:var(--rule);height:4px}.section-card{border:0;border-top:1px dashed var(--rule);contain-intrinsic-size:auto 360px;background:0 0;border-radius:0;margin:0;padding:16px 4px 14px 14px}.section-card:first-of-type{border-top:0}.section-card:before{width:2px;height:22px;top:18px;bottom:auto;left:0}.section-card.active{background:0 0}.section-card.active:before{background:var(--marker)}.section-card.sub{margin-left:0;padding-left:28px}.section-card.sub:before{left:14px}.section-card .head{align-items:baseline;gap:8px}.section-card .head .chev{font-size:11px}.section-card .head h3{letter-spacing:-.01em;color:var(--ink);font-size:19px;font-weight:500;line-height:1.3}.section-card.sub .head h3{font-size:16.5px}.section-card .head .page{color:var(--teal);font-size:11.5px}.section-card .gist{color:var(--muted);margin:4px 0 10px;font-size:12px}.section-card .gist.prose{color:var(--muted);font-size:12px;font-weight:400}.section-card .understood{color:var(--green)}.section-card .foot{border-top:1px dashed var(--rule);gap:4px 14px;margin-top:12px;padding-top:10px}.section-card .foot .btn.quiet{color:var(--ink-2);padding:2px 4px}.section-card .foot .btn.quiet:hover{color:var(--marker);background:0 0}.section-card.speaking{box-shadow:none;border-color:var(--rule);background:var(--marker-soft)}.versions{border-color:var(--rule)}.versions button{background:0 0}.versions button.on{background:var(--marker-soft);color:var(--marker)}.prose{color:var(--text);max-width:72ch;font-size:14.5px;font-weight:350;line-height:1.7}.prose strong{color:var(--ink);font-weight:550}.prose h2,.prose h3,.prose h4{font-family:var(--ui);font-variation-settings:var(--ui-vs);color:var(--ink-2);margin:1.5em 0 .5em;font-size:12px;font-weight:400}.prose h2:before,.prose h3:before,.prose h4:before{content:"## ";color:var(--muted);-webkit-text-stroke:0}.prose>h2:first-child,.prose>h3:first-child{margin-top:.2em}.prose code{background:var(--hover);color:var(--ink);font-size:.86em}.prose pre{background:var(--ground);border-color:var(--rule);font-size:12.5px}.prose blockquote{border-left:2px solid var(--marker);color:var(--ink-2)}.prose a.pref{color:var(--teal);background:0 0;padding:0}.prose a.pref:before{content:"→";margin-right:1px}.prose a.pref:hover{background:0 0;text-decoration:underline}.prose .katex-display{background:var(--ground);border-color:var(--rule)}.prose th{background:var(--hover)}.prose th,.prose td{border-color:var(--rule)}.cursor:after{content:"█";color:var(--marker)}.lens-input,.lens-card,.study-block,.lab-sim,.lab-empty,.script{background:var(--paper);border-color:var(--rule)}.lens-input .selection,.lens-card .quote{border-left-width:2px}.study-block>.head h3{color:var(--ink-2);font-size:12px;font-weight:400}.study-block>.head h3:before{content:"## ";color:var(--muted)}.label-h{color:var(--ink-2);margin:14px 0 4px;font-size:12px;font-weight:400}.label-h:before{content:"## ";color:var(--muted)}.one-liner{color:var(--ink);font-size:18px}.flash{background:var(--ground);border-color:var(--rule)}.msg.user{background:var(--raise);color:var(--ink);border:1px solid var(--rule);border-left:2px solid var(--marker);font-size:13.5px}.msg.assistant{border:0;border-left:2px solid var(--rule-2);background:0 0;padding:2px 0 2px 14px}.chat-input{background:var(--paper);border-top-color:var(--rule)}.focus-chip{background:var(--marker-soft)}.drawer{background:var(--paper);border-left-color:var(--rule)}.drawer h2{font-size:18px}.drawer-bg{background:#00000080}.field label{color:var(--ink-2);font-size:12px;font-weight:400}.player{background:var(--paper);border-top-color:var(--rule)}.player .play,.transport .play,.screen .overlay .big-play{background:var(--marker-soft);color:var(--marker);border:1px solid var(--marker-line)}.player .play:hover:not(:disabled),.transport .play:hover:not(:disabled),.screen .overlay .big-play:hover{background:var(--marker-soft);border-color:var(--marker)}.screen{box-shadow:none}.find-results,.popover{box-shadow:var(--shadow)}.popover.fzf{background:var(--raise);border:1px solid var(--rule-2);width:280px;max-width:280px;padding:14px 4px 4px;animation:none;display:block}.popover.fzf .ft{text-overflow:ellipsis;white-space:nowrap;background:var(--raise);color:var(--marker);width:-moz-fit-content;width:fit-content;max-width:calc(100% - 20px);padding:0 6px;font-size:12px;position:absolute;top:-9px;left:10px;right:10px;overflow:hidden}.popover.fzf>button{border-radius:var(--radius);text-align:left;gap:8px;width:100%;padding:3px 8px;font-size:12.5px;display:flex}.popover.fzf>button>span:nth-child(2){flex:1}.popover.fzf>button:hover,.popover.fzf>button.on{background:var(--hover)}.popover.fzf .ptr{width:1ch;color:var(--marker)}.popover.fzf .k{color:var(--muted)}.popover.fzf .fzf-foot{border-top:1px dashed var(--rule);color:var(--muted);align-items:center;gap:8px;margin-top:4px;padding:6px 8px 3px;font-size:12px;display:flex}.popover.fzf .fzf-foot .swatches{flex:1}.swatches{align-items:center;gap:4px;display:inline-flex}.swatches button{border-radius:var(--radius);place-items:center;width:22px;height:22px;display:grid}.swatches button:hover{background:var(--hover)}.swatches button span{border-radius:var(--radius);width:12px;height:12px;display:block}.reader.mobile{background:var(--ground);grid-template-rows:auto minmax(0,1fr) auto auto;width:100%;max-width:100vw;height:100%;font-size:14px;display:grid;overflow:hidden}.m-top{border-bottom:1px solid var(--rule);background:var(--paper);align-items:center;gap:2px;min-width:0;height:52px;padding:0 4px;transition:height .18s;display:flex;position:relative}.m-ib{width:44px;height:44px;color:var(--ink-2);border-radius:var(--radius);flex:none;place-items:center;font-size:16px;display:grid}.m-ib:active{background:var(--hover)}.m-top .where{flex:1;min-width:0;line-height:1.25;display:grid}.m-top .where .s{color:var(--marker);font-size:11.5px}.m-top .where .t{font-variation-settings:var(--read-vs);color:var(--ink);white-space:nowrap;text-overflow:ellipsis;font-size:15px;overflow:hidden}.m-top .pg{color:var(--muted);white-space:nowrap;padding:0 6px;font-size:12px}.m-top .mini{display:none}.reader.mobile.focus .m-top{height:28px;padding:0 4px 0 12px}.reader.mobile.focus .m-top>:not(.mini){display:none}.reader.mobile.focus .m-top .mini{width:100%;min-width:0;color:var(--muted);white-space:nowrap;align-items:center;gap:10px;font-size:11.5px;display:flex}.m-top .mini .s{color:var(--marker)}.m-top .mini .t{text-overflow:ellipsis;min-width:0;color:var(--ink-2);flex:1;overflow:hidden}.m-top .mini button{height:28px;color:var(--ink-2);padding:0 10px}.reader.mobile.focus .mobile-nav,.reader.mobile.focus .pdf-toolbar,.reader.mobile.focus .pane-head{display:none!important}.reader.mobile .mobile-body{grid-template-rows:minmax(0,1fr);grid-template-columns:minmax(0,1fr);min-height:0;display:grid}.reader.mobile .mobile-body>.stage{grid-area:1/1;grid-template-rows:minmax(0,1fr);min-height:0;display:grid}.reader.mobile .mobile-body>.stage.offstage{visibility:hidden;pointer-events:none}.reader.mobile .side{grid-template-rows:minmax(0,1fr)}.reader.mobile .pane{padding:16px 16px 40px}.reader.mobile .prose{font-size:16px;line-height:1.68}.reader.mobile .section-card .gist.prose{font-size:12.5px;line-height:1.5}.reader.mobile .section-card .head h3{font-size:18px}.reader.mobile .paper-text{font-size:17px}.reader.mobile .pdf-toolbar{padding:6px 8px}.reader.mobile .pdf-toolbar .seg button.on{background:var(--hover);color:var(--ink)}.reader.mobile .pdf-toolbar .seg{border-width:1px}.mobile-nav{border-top:1px solid var(--rule);background:var(--paper);padding-bottom:env(safe-area-inset-bottom);min-height:calc(54px + env(safe-area-inset-bottom));grid-auto-columns:minmax(0,1fr);grid-auto-flow:column;display:grid!important;overflow:hidden!important}.mobile-nav button{height:54px;color:var(--muted);white-space:nowrap;justify-content:center;align-items:center;gap:4px;position:relative;background:0 0!important;border-top:0!important;flex-direction:row!important;min-width:0!important;padding:0 4px!important;font-size:13px!important;display:flex!important}.mobile-nav button.active{color:var(--ink)}.mobile-nav button.active:before{content:"";background:var(--marker);height:2px;position:absolute;top:-1px;left:26%;right:26%}.m-scrim{z-index:30;background:#0009;position:fixed;inset:0}.m-menu{z-index:31;right:8px;bottom:calc(62px + env(safe-area-inset-bottom));background:var(--raise);border:1px solid var(--rule-2);border-radius:var(--radius);min-width:180px;padding:4px;display:grid;position:fixed}.m-menu button{text-align:left;height:44px;color:var(--ink-2);border-radius:var(--radius);padding:0 14px;font-size:14px}.m-menu button.on{color:var(--marker);background:var(--marker-soft)}.m-drawer{z-index:31;background:var(--paper);border-right:1px solid var(--rule);width:min(86vw,360px);padding-top:env(safe-area-inset-top);grid-template-rows:auto auto minmax(0,1fr);grid-template-columns:minmax(0,1fr);display:grid;position:fixed;top:0;bottom:0;left:0}.m-drawer .dhead{border-bottom:1px solid var(--rule);align-items:center;height:52px;padding:0 4px 0 16px;font-size:13px;display:flex}.m-drawer .crumb{color:var(--ink);text-decoration:none}.m-drawer .dtitle{font-variation-settings:var(--read-vs);color:var(--ink);border-bottom:1px solid var(--rule);padding:12px 16px;font-size:15px}.m-drawer .outline-list{padding:6px 0}.m-drawer .orow{border-radius:0;min-height:46px;padding:0 16px;font-size:14px}.m-drawer .orow.sub{padding-left:32px}.m-drawer .orow .t{font-variation-settings:var(--read-vs);color:var(--text)}.m-drawer .orow.on .t{color:var(--ink)}.m-drawer .outline-sum{padding:12px 16px calc(14px + env(safe-area-inset-bottom));font-size:12.5px}.popover.sheet{left:0;right:0;bottom:calc(54px + env(safe-area-inset-bottom));background:var(--raise);border:0;border-top:1px solid var(--marker-line);border-radius:0;gap:8px;max-width:none;padding:8px 12px 10px;display:grid;box-shadow:0 -12px 30px -12px #0009}.reader.mobile.focus~.popover.sheet,.reader.mobile.focus .popover.sheet{bottom:env(safe-area-inset-bottom)}.popover.sheet .q{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.popover.sheet .q span{color:var(--marker)}.popover.sheet .chips{scrollbar-width:none;align-items:center;gap:6px;display:flex;overflow-x:auto}.popover.sheet .chips::-webkit-scrollbar{display:none}.chip-btn{border:1px solid var(--rule);border-radius:var(--radius);height:38px;color:var(--ink-2);flex:none;padding:0 14px;font-size:13.5px}.chip-btn.main{color:var(--marker);border-color:var(--marker-line);background:var(--marker-soft)}.popover.sheet .swatches button{width:38px;height:38px}.popover.sheet .swatches button span{width:16px;height:16px}.library-msg{max-width:760px;margin:0 auto;padding:48px 20px}.lib{grid-template-rows:auto minmax(0, 1fr) var(--statusbar);background:var(--ground);gap:14px;height:100%;padding:8px 8px 0;display:grid}.open-prompt{border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);align-items:center;gap:10px;min-width:0;min-height:48px;padding:0 8px 0 14px;font-size:13px;display:flex}.open-prompt:focus-within{border-color:var(--marker-line)}.open-prompt label{white-space:nowrap}.open-prompt input{min-width:0;height:46px;color:var(--ink);background:0 0;border:0;outline:none;flex:1;font-size:14px}.open-prompt input::placeholder,.m-open input::placeholder,.lfilter input::placeholder{color:var(--muted)}.open-prompt .hint{color:var(--muted);white-space:nowrap;font-size:11.5px}.open-prompt .gear{padding:0 4px;font-size:14px}.lib-grid{grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:14px;min-height:0;display:grid}.llist{grid-template-rows:auto auto auto minmax(0,1fr) auto;min-height:0;display:grid}.lfilter{align-items:center;gap:8px;padding:16px 14px 8px;font-size:12.5px;display:flex}.lfilter input{min-width:0;color:var(--ink);background:0 0;border:0;outline:none;flex:1}.lfilter .sort{align-items:center;gap:2px;display:flex}.lfilter .sort .muted{margin-right:4px}.lfilter .sort button{border-radius:var(--radius);color:var(--muted);padding:1px 6px}.lfilter .sort button.on{color:var(--ink);background:var(--hover)}.lnotice{border:1px solid var(--rule);border-radius:var(--radius);color:var(--ink-2);margin:4px 14px 8px;padding:8px 10px;font-size:12.5px;line-height:1.6}.lcols,.lrow{grid-template-columns:16px minmax(0,1fr) 128px 150px 92px;align-items:center;gap:14px;padding:0 14px;display:grid}.lcols{height:30px;color:var(--muted);border-bottom:1px solid var(--rule);font-size:11.5px}.lcols .r,.lrow .when{text-align:right}.lrows{padding:4px 0 12px;overflow:auto}.lrow{min-height:58px;color:inherit;border-left:2px solid #0000;text-decoration:none}.lrow:hover{background:var(--hover)}.lrow.sel{background:var(--marker-soft);border-left-color:var(--marker)}.lrow .ptr{color:var(--marker);visibility:hidden}.lrow.sel .ptr{visibility:visible}.lrow .ti{gap:1px;min-width:0;display:grid}.lrow .ti b{font-variation-settings:var(--read-vs);color:var(--ink);white-space:nowrap;text-overflow:ellipsis;font-size:15px;font-weight:450;overflow:hidden}.lrow .ti span{color:var(--muted);white-space:nowrap;text-overflow:ellipsis;font-size:11.5px;overflow:hidden}.lrow .src{color:var(--ink-2);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.lrow .when{color:var(--muted);white-space:nowrap;font-size:11.5px}.lrow.job{color:var(--ink-2);grid-template-columns:16px minmax(0,1fr)}.lrow.job .ti b{color:var(--ink-2)}.lprog{color:var(--ink-2);gap:5px;font-size:12px;display:grid}.lprog .bar{background:var(--rule);border-radius:var(--radius);height:4px;overflow:hidden}.lprog .bar i{background:var(--green);height:100%;display:block}.lprog .bar.part i{background:var(--marker)}.lprog .bar.dim i{background:var(--rule-2)}.pv .abs.clamp{-webkit-line-clamp:8;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.pv .abs+.tbtn{margin-top:4px;font-size:12px}.lfoot{border-top:1px solid var(--rule);color:var(--muted);flex-wrap:wrap;gap:18px;padding:8px 14px;font-size:11.5px;display:flex}.lfoot b{color:var(--ink-2);font-weight:400}.lempty{align-content:start;gap:6px;padding:26px 22px;font-size:13px;display:grid}.lempty .big{font-variation-settings:var(--read-vs);color:var(--ink);margin:14px 0 2px;font-size:20px}.lempty p{font-variation-settings:var(--read-vs);max-width:54ch;color:var(--text);margin:0 0 12px;font-size:14.5px;line-height:1.6}.lempty .ex{border-radius:var(--radius);text-align:left;grid-template-columns:12ch minmax(0,1fr);gap:12px;padding:8px 10px;display:grid}.lempty .ex:hover{background:var(--hover)}.lempty .ex span:last-child{font-variation-settings:var(--read-vs);color:var(--ink);font-size:14.5px}.lpreview .pv{padding:22px 22px 28px;overflow:auto}.pv .kind{color:var(--muted);margin-bottom:8px;font-size:11.5px}.pv h1{letter-spacing:-.01em;font-variation-settings:var(--read-vs);text-wrap:balance;margin:0 0 6px;font-size:23px;font-weight:500;line-height:1.25}.pv .who{color:var(--ink-2);font-variation-settings:var(--read-vs);font-size:14px}.pv .h{color:var(--ink-2);margin:22px 0 8px;font-size:12px}.pv .h:before{content:"## ";color:var(--muted)}.pv .abs{color:var(--text);font-variation-settings:var(--read-vs);max-width:64ch;margin:0;font-size:14.5px;font-weight:350;line-height:1.7}.smap{flex-wrap:wrap;gap:4px;display:flex}.smap i{border-radius:var(--radius);background:var(--raise);border:1px solid var(--rule);width:20px;height:20px}.smap i.done{background:color-mix(in srgb, var(--green) 35%, transparent);border-color:color-mix(in srgb, var(--green) 55%, transparent)}.smap i.exp{background:var(--hover);border-color:var(--rule-2)}.legend{color:var(--muted);flex-wrap:wrap;gap:14px;margin-top:8px;font-size:11.5px;display:flex}.legend span:before{content:"";vertical-align:-1px;border-radius:var(--radius);border:1px solid var(--rule);width:9px;height:9px;margin-right:6px;display:inline-block}.legend .l-done:before{background:color-mix(in srgb, var(--green) 35%, transparent)}.legend .l-exp:before{background:var(--hover)}.pv .kv{gap:5px;margin:0;font-size:12.5px;display:grid}.pv .kv div{grid-template-columns:11ch minmax(0,1fr);gap:14px;display:grid}.pv .kv dt{color:var(--muted)}.pv .kv dd{color:var(--ink-2);margin:0}.pv .acts{border-top:1px dashed var(--rule);flex-wrap:wrap;gap:8px;margin-top:22px;padding-top:16px;display:flex}.pv .acts .btn{height:34px;padding:0 14px}.drop-overlay{z-index:50;background:color-mix(in srgb, var(--ground) 88%, transparent);pointer-events:none;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.drop-box{text-align:center;border:1px dashed var(--marker);border-radius:var(--radius);background:var(--paper);gap:10px;width:min(620px,100%);padding:40px 28px;display:grid}.drop-box .big{font-variation-settings:var(--read-vs);color:var(--ink);font-size:21px}@media (max-width:1100px){.lcols,.lrow{grid-template-columns:16px minmax(0,1fr) 140px 80px}.lcols .c-src,.lrow .src,.open-prompt .hint{display:none}}@media (max-width:900px){.lib-grid{grid-template-columns:minmax(0,1fr)}.lpreview{display:none}}.lib-m{background:var(--ground);grid-template-rows:auto minmax(0,1fr) auto;height:100%;font-size:14px;display:grid}.lib-m .m-top{padding:0 4px 0 16px}.lib-m .crumb{color:var(--ink);font-size:13px}.lib-m-body{overscroll-behavior:contain;overflow:auto}.lib-m .lfilter{border-bottom:1px solid var(--rule);height:44px;padding:0 16px;font-size:13px}.lcard{border-bottom:1px solid var(--rule);color:inherit;gap:6px;padding:14px 16px;text-decoration:none;display:grid}.lcard:active{background:var(--hover)}.lcard .tt{font-variation-settings:var(--read-vs);color:var(--ink);font-size:16px;line-height:1.3}.lcard .mt{color:var(--muted);font-size:12.5px}.lcard .pr{justify-content:space-between;align-items:center;gap:12px;font-size:12.5px;display:flex}.lcard .lprog{grid-auto-flow:column;align-items:center;gap:10px}.lcard .lprog .bar{width:110px}.lib-m .lrow.job{border-bottom:1px solid var(--rule);padding:14px 16px}.lib-m .lnotice{margin:10px 16px}.m-open{padding:10px 12px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--rule);background:var(--paper);align-items:center;gap:8px;display:flex;position:relative}.m-open .field-label{pointer-events:none;position:absolute;top:23px;left:24px}.m-open input{border:1px solid var(--rule);border-radius:var(--radius);background:var(--ground);min-width:0;height:46px;color:var(--ink);outline:none;flex:1;padding:0 12px 0 30px;font-size:16px}.m-open input:focus{border-color:var(--marker-line)}.m-open .btn{height:46px;padding:0 16px;font-size:14px}.pane.flush{grid-template-rows:minmax(0,1fr);padding:0;display:grid;overflow:hidden}.learn{min-width:0;height:100%;min-height:0;display:grid}.learn.wide{grid-template-columns:minmax(200px,290px) minmax(0,1fr)}.learn.narrow{grid-template-rows:auto minmax(0,1fr)}.learn-side{border-right:1px dashed var(--rule);min-height:0;padding:16px 6px 12px;overflow:auto}.learn-fold{border-bottom:1px dashed var(--rule);max-height:45vh;padding:6px 10px;overflow:auto}.learn-fold summary{cursor:pointer;color:var(--ink-2);padding:2px 0;font-size:12px}.learn-fold[open] summary{margin-bottom:6px}.learn-main{grid-template-rows:minmax(0,1fr) auto auto;min-width:0;min-height:0;display:grid}.learn-log{flex-direction:column;gap:14px;min-height:0;padding:16px 16px 24px;display:flex;overflow:auto}.learn-log>*{width:100%;max-width:760px}.lturn.tutor{flex-direction:column;gap:10px;display:flex}.lturn.me{width:auto;color:var(--ink);border-left:2px solid var(--marker);background:var(--marker-soft);border-radius:var(--radius);white-space:pre-wrap;align-self:flex-start;padding:6px 10px;font-size:13px}.lturn.me.act{border-left-color:var(--rule-2);background:0 0;padding:0 10px;font-size:12px}.lstatus{margin:0}.lempty-s{justify-items:start;gap:12px;display:grid}.lempty-s p{font-variation-settings:var(--read-vs);max-width:60ch;color:var(--text);margin:0;line-height:1.6}.lquiz{border:1px solid var(--rule);border-radius:var(--radius);background:var(--raise);gap:10px;padding:12px 14px;display:grid}.lquiz.answered.right{border-color:#3d7a4573}.lquiz.answered.wrong{border-color:#b8432f66}.lquiz .qhead{font-size:11.5px}.lquiz .qhead:before{content:"? ";color:var(--marker)}.lquiz .q{font-weight:500}.lquiz .opts{gap:6px;display:grid}.lquiz .opt{text-align:left;border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);color:var(--ink);grid-template-columns:2ch minmax(0,1fr);align-items:baseline;gap:10px;padding:8px 10px;display:grid}.lquiz .opt:hover:not(:disabled){border-color:var(--marker-line);background:var(--hover)}.lquiz .opt:disabled{cursor:default;opacity:1}.lquiz .opt .k{color:var(--muted);font-size:12px}.lquiz .opt .l.prose{font-size:14px}.lquiz .opt .l.prose p{margin:0}.lquiz .opt.picked{border-color:var(--marker);background:var(--marker-soft)}.lquiz .opt.right{border-color:var(--green)}.lquiz .opt.right .k{color:var(--green)}.lquiz .opt.wrong{border-color:var(--red)}.lquiz .opt.wrong .k{color:var(--red)}.lquiz .opt.idk{border-style:dashed}.lquiz .opt.idk .l{color:var(--muted);font-size:12.5px}.lquiz .qfoot{align-items:center;gap:8px;display:flex}.lquiz .qfoot input{border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);min-width:0;color:var(--ink);outline:none;flex:1;padding:5px 8px;font-size:12.5px}.lquiz .qfoot input:focus{border-color:var(--marker-line)}.lquiz .qexp{border-top:1px dashed var(--rule);padding-top:8px}.lquiz .verdict{margin-bottom:6px;font-size:12px}.lquiz .verdict.right{color:var(--green)}.lquiz .verdict.wrong{color:var(--red)}.lquiz .verdict.dontKnow{color:var(--marker)}.lpaper{border:1px solid var(--rule);border-radius:var(--radius);background:var(--raise);grid-template-columns:auto minmax(0,1fr) auto;align-items:start;gap:10px;padding:10px 12px;display:grid}.lpaper .body{gap:3px;min-width:0;display:grid}.lpaper b{font-variation-settings:var(--read-vs);font-size:14px;font-weight:500}.lpaper .small{font-size:12.5px}.lmapnote{color:var(--marker);text-align:left;align-self:flex-start;font-size:12.5px;width:auto!important}.lmapnote:hover{color:var(--ink)}.lcontrols{border-top:1px dashed var(--rule);flex-wrap:wrap;align-items:center;gap:8px;padding:8px 12px;display:flex}.lcontrols .grow{flex:1}.lcontrols .small{white-space:nowrap;text-overflow:ellipsis;max-width:100%;font-size:11.5px;overflow:hidden}.learn-prompt{border-top:1px solid var(--rule);background:var(--paper);align-items:center;gap:8px;padding:6px 12px 8px;display:flex}.learn-prompt input{min-width:0;height:34px;color:var(--ink);background:0 0;border:0;outline:none;flex:1;font-size:14px}.learn-prompt:focus-within{box-shadow:inset 0 1px 0 var(--marker-line)}.learn-map{gap:1px;font-size:12.5px;display:grid}.learn-map .goal{padding:0 8px 8px}.learn-nomap{margin:0;padding:4px 8px}.lnode .lrow-btn{border-radius:var(--radius);text-align:left;width:100%;color:var(--ink-2);align-items:center;gap:6px;padding:3px 8px;display:flex}.lnode .lrow-btn:hover{background:var(--hover);color:var(--ink)}.lnode.active .lrow-btn{background:var(--marker-soft);color:var(--ink)}.lnode .mk{width:2ch;color:var(--muted);flex:none}.lnode .mk.done{color:var(--green)}.lnode .mk.active{color:var(--marker)}.lnode.skipped .t{color:var(--muted)}.lnode .t{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.lnode .rename{min-width:0;font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--marker-line);border-radius:var(--radius);outline:none;flex:1;padding:0 4px}.lnode .ndetail{color:var(--ink-2);padding:2px 8px 8px 30px;font-size:12px}.lnode .ndetail p{margin:0 0 4px}.lnode .ndetail .acts{flex-wrap:wrap;gap:4px;display:flex}.tbtn.danger{color:var(--red)}.mastery{border-radius:var(--radius);flex:none;padding:0 5px;font-size:10.5px;line-height:16px}.mastery.known{color:var(--green);background:#3d7a451f}.mastery.shaky{color:var(--marker);background:var(--marker-soft)}.mastery.unseen{color:var(--muted);background:var(--rule)}.learn-page .learn-title{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:14px;overflow:hidden}.learn-page>.learn-host{min-height:0}.learn-page>.learn-host>.learn{padding-top:4px}.learn-page .llist{flex-direction:column;min-height:0;display:flex}.learn-page .lrows{flex:1;min-height:0}.lrow.learn-row{grid-template-columns:16px minmax(0,1fr) 110px 92px 32px}.lrow.learn-row .tbtn{visibility:hidden}.lrow.learn-row:hover .tbtn{visibility:visible}.pv.concepts{align-content:start;gap:2px;display:grid}.pv.concepts .lfilter{padding:0 0 10px}.crow{grid-template-columns:52px minmax(0,1fr) auto;align-items:center;gap:10px;padding:3px 0;font-size:13px;display:grid}.crow .mastery{text-align:center}.crow .t{font-variation-settings:var(--read-vs);text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}@media (max-width:800px){.learn-page .lib-grid{grid-template-rows:minmax(0,1fr) minmax(0,.8fr);grid-template-columns:minmax(0,1fr)}.lrow.learn-row{grid-template-columns:16px minmax(0,1fr) 70px 32px}.lrow.learn-row .lprog{display:none}.lrow.learn-row .tbtn{visibility:visible}}.about-pane .small{font-size:12px}.about-src{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;display:flex}.about-src .grow{flex:1}.about-src .ok{color:var(--green)}.about-stats{border:1px solid var(--rule);border-radius:var(--radius);background:var(--raise);grid-template-columns:auto minmax(0,1fr) auto;align-items:start;gap:8px 24px;padding:14px 16px;display:grid}.about-stats .big{gap:2px;display:grid}.about-stats .big b{font-variation-settings:var(--read-vs);color:var(--ink);letter-spacing:-.02em;font-size:30px;font-weight:500;line-height:1}.about-stats .kv{gap:4px;margin:0;font-size:12.5px;display:grid}.about-stats .kv div{grid-template-columns:9ch minmax(0,1fr);gap:10px;display:grid}.about-stats .kv dt{color:var(--muted)}.about-stats .kv dd{color:var(--ink-2);margin:0}.about-stats .kv dd.ok{color:var(--green)}.about-bars{width:170px;height:48px;overflow:visible}.about-bars rect{fill:var(--marker)}.about-bars rect.partial{opacity:.4}.about-bars text{fill:var(--muted);font-size:7px;font-family:var(--ui)}@media (max-width:700px){.about-stats{grid-template-columns:minmax(0,1fr)}}.about-tldr{font-variation-settings:var(--read-vs);color:var(--text);margin:12px 0 0;line-height:1.55}.about-h{color:var(--ink-2);align-items:center;gap:8px;margin:22px 0 6px;font-size:12px;font-weight:400;display:flex}.about-h:before{content:"## ";color:var(--muted)}.about-h .grow{flex:1}.about-filter{border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);width:180px;color:var(--ink);outline:none;padding:2px 6px;font-size:12px}.about-author .arow,.about-ref .rrow{border-radius:var(--radius);text-align:left;align-items:baseline;gap:8px;width:100%;padding:4px 6px;display:grid}.about-author .arow{grid-template-columns:2ch auto minmax(0,1fr)}.about-ref .rrow{grid-template-columns:4ch minmax(0,1fr) auto}.about-author .arow:hover:not(:disabled),.about-ref .rrow:hover{background:var(--hover)}.about-author .arow:disabled{cursor:default;opacity:1}.about-author .mk{color:var(--marker)}.about-author .n{color:var(--ink);font-variation-settings:var(--read-vs);font-size:14px}.about-author .w{text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.about-author .acard,.about-ref .rprev{border-left:2px solid var(--marker-line);margin:2px 0 10px 26px;padding:8px 12px}.about-author .acard p,.about-ref .rprev p{margin:0 0 6px}.about-author .works{gap:3px;margin-top:8px;display:grid}.about-author .work{grid-template-columns:minmax(0,1fr) auto auto;align-items:baseline;gap:10px;font-size:13px;display:grid}.about-author .work .t{font-variation-settings:var(--read-vs);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.about-ref .k{text-align:right;font-size:11.5px}.about-ref .t{font-variation-settings:var(--read-vs);color:var(--text);text-overflow:ellipsis;white-space:nowrap;font-size:13.5px;overflow:hidden}.about-ref.open .t{white-space:normal;color:var(--ink)}.about-ref .m{white-space:nowrap}.about-ref .m .ok{color:var(--green)}.about-ref .tldr{font-variation-settings:var(--read-vs);color:var(--ink);font-size:13.5px;line-height:1.5}.about-ref .abs{font-variation-settings:var(--read-vs);color:var(--text);-webkit-line-clamp:6;-webkit-box-orient:vertical;font-size:13px;line-height:1.55;display:-webkit-box;overflow:hidden}.about-ref .acts{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.stats-page{grid-template-rows:auto auto minmax(0, 1fr) var(--statusbar)}.stats-sum{text-overflow:ellipsis;white-space:nowrap;min-width:0;color:var(--ink-2);flex:1;font-size:13px;overflow:hidden}.stats-sum b{color:var(--ink);font-weight:500}.stats-note{min-height:0;padding:0 6px}.stats-grid{grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-rows:minmax(260px,1fr);gap:14px;min-height:0;padding-top:8px;display:grid;overflow:auto}.stats-pane{min-height:0}.stats-list{align-content:start;gap:1px;min-height:0;padding:16px 10px 12px;display:grid;overflow:auto}.stats-list p{margin:0 0 8px;line-height:1.55}.srow{border-radius:var(--radius);text-align:left;width:100%;color:var(--ink-2);grid-template-rows:auto 3px;grid-template-columns:2.5ch minmax(0,1fr) auto auto;align-items:baseline;gap:2px 10px;padding:5px 6px;font-size:12.5px;display:grid}.srow:hover{background:var(--hover)}.srow .rk{text-align:right;font-size:11px}.srow .nm{text-overflow:ellipsis;white-space:nowrap;min-width:0;overflow:hidden}.srow .nm b{color:var(--ink);font-variation-settings:var(--read-vs);font-size:13.5px;font-weight:450}.srow .ct{white-space:nowrap}.srow .tm{white-space:nowrap;font-size:11.5px}.srow .bar{background:var(--rule);border-radius:var(--radius);grid-column:2/-1;height:3px;overflow:hidden}.srow .bar i{background:var(--marker);height:100%;display:block}.stats-months{width:100%;height:auto;max-height:220px}.stats-months rect.read{fill:var(--marker)}.stats-months rect.add{fill:var(--blue);opacity:.7}.stats-months text{fill:var(--muted);font-size:9px;font-family:var(--ui)}.key-read{color:var(--marker)}.key-add{color:var(--blue);opacity:.7}@media (max-width:1100px){.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:700px){.stats-grid{grid-template-columns:minmax(0,1fr);grid-auto-rows:minmax(220px,auto)}.stats-page .open-prompt{flex-wrap:wrap;padding:8px 10px}}.cite-card{z-index:60;border:1px solid var(--focus-rule);border-radius:var(--radius);background:var(--raise);width:min(400px,100vw - 16px);max-height:min(60vh,440px);box-shadow:var(--shadow);padding:10px 12px 12px;font-size:12.5px;position:fixed;overflow:auto}.cite-card .ch{align-items:center;gap:6px;margin-bottom:6px;font-size:12px;display:flex}.cite-card .ch .grow{flex:1}.cite-card .raw{-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:0 0 8px;font-size:11.5px;line-height:1.45;display:-webkit-box;overflow:hidden}.cite-card .pv-body{gap:3px;margin-bottom:8px;display:grid}.cite-card .ti{font-variation-settings:var(--read-vs);color:var(--ink);font-size:14px;font-weight:500;line-height:1.3}.cite-card .tl,.cite-card .ab{font-variation-settings:var(--read-vs);color:var(--text);margin:4px 0 0;line-height:1.5}.cite-card .ab{-webkit-line-clamp:5;-webkit-box-orient:vertical;display:-webkit-box;overflow:hidden}.cite-card .acts{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.cite-card.sheet{width:auto;max-height:70vh;padding:14px 16px calc(16px + env(safe-area-inset-bottom));border-width:1px 0 0;border-radius:0;font-size:14px;inset:auto 0 0}.cite-card.sheet .ti{font-size:16px}.cedit .crow{text-align:left;border-radius:var(--radius);width:100%;padding:3px 4px}.cedit .crow:hover{background:var(--hover)}.cedit.open .crow{background:var(--marker-soft)}.cform{border-left:2px solid var(--marker-line);gap:6px;margin:4px 0 10px 62px;padding-left:10px;display:grid}.cform p{margin:0}.cform label{color:var(--muted);grid-template-columns:11ch minmax(0,1fr);align-items:center;gap:8px;display:grid}.cform input,.cform select{font:inherit;border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);color:var(--ink);min-width:0;padding:3px 6px;font-size:12.5px}.cform .acts{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.lsources{border-left:2px solid var(--rule-2);flex-wrap:wrap;gap:4px 12px;padding:6px 10px;display:flex}.lsources a{color:var(--ink-2);text-decoration:none}.lsources a:hover{color:var(--teal)}.lsketch{aspect-ratio:16/9;border:1px solid var(--rule);border-radius:var(--radius);background:var(--paper);width:100%;max-width:640px;height:auto;display:block}.review{align-content:start;gap:14px;max-width:760px;padding:18px 18px 30px;display:grid;overflow:auto}.review .rhead{flex-wrap:wrap;align-items:baseline;gap:12px;display:flex}.review .rhead b{font-variation-settings:var(--read-vs);color:var(--ink);font-size:15px;font-weight:500}.review>.btn{justify-self:start}.csim{gap:8px;display:grid}.csim.empty{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.csim .head{gap:2px;display:grid}.csim .head b{color:var(--ink);font-variation-settings:var(--read-vs);font-size:14px;font-weight:500}.crash .crash-text{white-space:pre-wrap;word-break:break-word;border:1px solid var(--rule);border-radius:var(--radius);background:var(--raise);color:var(--ink);max-height:50vh;padding:10px 12px;font-size:12px;overflow:auto}