:root{
  --bg:#ffffff; --surface:#f6f5f1; --fg:#14202e; --muted:#5b6370; --border:#dddad2; --accent:#0b2e50; --gold:#b28c45;
  --desk:#f6f5f1;
  --font-display:"Source Serif 4","Source Serif Pro","Iowan Old Style",Georgia,"Times New Roman",serif;
  --font-body:"Public Sans",system-ui,-apple-system,"Segoe UI","Helvetica Neue",Arial,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bar:64px; --rail:248px; --drawer:420px;
  --ease:cubic-bezier(.215,.61,.355,1);
  --paper-shadow:0 1px 2px color-mix(in oklab,#14202e 10%,transparent),0 12px 32px color-mix(in oklab,#14202e 10%,transparent);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--desk);color:var(--fg);font:400 15px/1.55 var(--font-body);-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.eyebrow{font:500 11.5px/1.4 var(--font-body);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.mono{font-family:var(--font-mono)}
[hidden]{display:none!important}

/* ---------- toolbar ---------- */
.bar{position:fixed;inset:0 0 auto 0;z-index:50;height:var(--bar);background:var(--bg);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:16px;padding:0 20px}
.bar .home{display:flex;align-items:center;gap:12px;text-decoration:none;min-height:44px;padding-right:4px}
.bar .home img{width:36px;height:36px}
.bar .doc{display:flex;flex-direction:column;line-height:1.2}
.bar .doc b{font:600 15px/1.2 var(--font-display);letter-spacing:-.005em}
.bar .doc span{font:400 11.5px/1.3 var(--font-mono);color:var(--muted)}
.tabs{display:inline-flex;padding:3px;background:var(--surface);border:1px solid var(--border);border-radius:4px;margin-left:16px}
.tabs button{min-height:38px;padding:0 16px;border:0;border-radius:3px;background:transparent;font-weight:500;font-size:14px;letter-spacing:.02em;cursor:pointer}
.tabs button:hover{background:color-mix(in oklch,#f6f5f1 80%,#dddad2)}
.tabs button[aria-selected="true"]{background:var(--bg);box-shadow:0 1px 2px color-mix(in oklab,#14202e 14%,transparent);font-weight:600}
.spacer{flex:1}
.tool{display:inline-flex;align-items:center;gap:8px;min-height:44px;min-width:44px;justify-content:center;padding:0 12px;border:1px solid transparent;background:none;border-radius:4px;cursor:pointer;font-size:14px;font-weight:500;letter-spacing:.02em}
.tool:hover{background:var(--surface);border-color:var(--border)}
.tool svg{width:18px;height:18px;flex:none}
.tool[aria-pressed="true"],.tool[aria-expanded="true"]{background:var(--surface);border-color:var(--border)}
.presence{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);font-weight:400}
.presence .faces{margin-left:6px}
.live-dot{width:7px;height:7px;border-radius:50%;background:var(--fg);display:inline-block;margin-right:2px}
#peer-list li{display:flex;flex-direction:column;padding:8px;font-size:13.5px;border-bottom:1px solid var(--border)}
.faces{display:flex}
.face{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font:600 11px/1 var(--font-body);color:#ffffff;border:2px solid var(--bg);margin-left:-6px}
.face.a{background:var(--accent)} .face.b{background:var(--muted)}
.switch{display:inline-flex;align-items:center;gap:10px;min-height:44px;cursor:pointer;font-size:14px;font-weight:500;letter-spacing:.02em;padding:0 4px}
.switch input{appearance:none;width:36px;height:20px;border-radius:10px;background:var(--border);position:relative;margin:0;cursor:pointer;transition:background .2s}
.switch input::after{content:"";position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:var(--bg);box-shadow:0 1px 2px color-mix(in oklab,#14202e 30%,transparent);transition:transform .2s var(--ease)}
.switch input:checked{background:var(--fg)}
.switch input:checked::after{transform:translateX(16px)}
.progress{position:absolute;left:0;bottom:-1px;height:2px;background:var(--fg);width:calc(var(--rp,0) * 100%)}

/* ---------- outline rail ---------- */
.rail{position:fixed;z-index:30;top:var(--bar);bottom:0;left:0;width:var(--rail);padding:28px 20px 20px 24px;overflow:auto;border-right:1px solid var(--border);background:var(--desk);display:flex;flex-direction:column}
.rail h2{margin:0 0 12px}
.rail ol{list-style:none;margin:0 0 24px;padding:0}
.rail button{width:100%;text-align:left;display:grid;grid-template-columns:1fr auto;gap:8px;align-items:baseline;min-height:40px;padding:8px 10px;border:0;border-radius:4px;background:none;cursor:pointer;font-size:14px;line-height:1.35}
.rail button:hover{background:var(--bg)}
.rail button[aria-current="true"]{background:var(--bg);font-weight:600;box-shadow:inset 2px 0 0 var(--fg)}
.rail .pg{font:400 11.5px/1 var(--font-mono);color:var(--muted)}
.src-note{margin-top:auto;font-size:11px;line-height:1.5;color:var(--muted);border-top:1px solid var(--border);padding-top:12px}
.src-note p{margin:0 0 6px}.src-note p:last-child{margin:0}
.src-note b{color:var(--fg);font-weight:600}
.src-note .mono{font-size:10.5px}
body.no-rail .rail{display:none}

main{padding-top:var(--bar)}
body:not(.no-rail) main{padding-left:var(--rail)}
body.drawer-open:not(.narrow) main{padding-right:var(--drawer)}

/* ---------- desk + paper stack ---------- */
.desk-scroll{position:relative;height:calc(var(--n) * var(--step) + 100vh - var(--site-top) - var(--bar))}
.stack{position:sticky;top:var(--bar);height:calc(100vh - var(--bar));display:grid;place-items:start center;padding-top:24px;overflow:visible}
main{overflow-x:clip}
.stack-inner{position:relative;width:8.5in;height:11in;zoom:var(--s,1)}
.sheet{position:absolute;inset:0;background:var(--bg);box-shadow:var(--paper-shadow);will-change:transform,clip-path;display:flex;flex-direction:column;padding:.55in 1in .6in}
.sheet .shade{position:absolute;inset:0;pointer-events:none;opacity:0}
/* the folded-back part of the turning sheet: blank paper reverse, shaded to read as a soft curl */
.flap-wrap{position:absolute;inset:0;pointer-events:none;z-index:100;filter:drop-shadow(-6px 8px 14px color-mix(in oklab,#14202e 20%,transparent)) drop-shadow(0 1px 1px color-mix(in oklab,#14202e 14%,transparent))}
.flap{position:absolute;left:-1000px;top:-480px;width:1856px;height:2016px;background:var(--bg)}
.lh{display:flex;justify-content:space-between;align-items:flex-end;padding-bottom:10pt;border-bottom:1px solid var(--gold);margin-bottom:.32in}
.lh img{width:1.85in;height:auto}
.lh .meta{text-align:right;font:400 7.5pt/1.5 var(--font-mono);color:var(--muted);letter-spacing:.02em}
.sheet-body{flex:1;min-height:0}
.sheet-foot{display:flex;justify-content:space-between;font:400 7.5pt/1 var(--font-mono);color:var(--muted);padding-top:8pt;border-top:1px solid var(--border)}
/* document typography at print size: 12 pt body, 1.35 leading, 8 pt after */
.sheet h2.ch{font-size:22pt;line-height:1.15;margin:0 0 12pt}
.sheet h3{font-size:13pt;margin:14pt 0 5pt}
.sheet h3:first-child{margin-top:0}
.sheet .para{font-size:12pt;line-height:1.35;margin:0 -6px 8pt;padding:1px 6px;text-wrap:pretty}
.sheet .para .pid{left:-62px;top:4px;font-size:7pt}
.sheet .para .rev{left:-62px;font-size:6.5pt}
.sheet .para .cnt{right:-60px;top:0}
.sheet .closing{font-size:13pt;margin-top:16pt;padding-top:10pt}
.doc h2.ch{font:400 30px/1.12 var(--font-display);letter-spacing:-.015em;margin:0 0 18px}
.doc h3{font:600 16.5px/1.3 var(--font-display);margin:20px 0 8px}
.doc h3:first-child{margin-top:0}
.para{position:relative;font:400 15.5px/1.6 var(--font-display);margin:0 0 12px;padding:2px 8px;margin-left:-8px;margin-right:-8px;border-radius:2px;transition:background .15s}
.para .pid{position:absolute;left:-46px;top:6px;font:400 9.5px/1 var(--font-mono);color:var(--muted);opacity:0;transition:opacity .15s;text-decoration:none;padding:4px 2px}
.para .rev{position:absolute;left:-46px;bottom:4px;font:500 9px/1 var(--font-mono);color:var(--muted);letter-spacing:.04em}
.para .cnt{position:absolute;right:-44px;top:2px;min-width:32px;min-height:28px;display:inline-flex;align-items:center;gap:4px;padding:0 6px;border:1px solid var(--border);border-radius:2px;background:var(--bg);font:500 11px/1 var(--font-mono);color:var(--muted);cursor:pointer}
.para .cnt svg{width:12px;height:12px}
.para .cnt:hover{color:var(--fg);border-color:var(--muted)}
body.dlg .para{cursor:pointer}
body.dlg .para:hover{background:var(--surface)}
body.dlg .para:hover .pid,.para:focus-visible .pid{opacity:1}
body:not(.dlg) .para .cnt{display:none}
.para.sel{background:var(--surface);box-shadow:inset 2px 0 0 var(--fg)}
mark{background:var(--surface);color:inherit;box-shadow:inset 0 -2px 0 var(--gold);padding:0 1px}
.closing{font:italic 400 17px/1.5 var(--font-display);margin-top:22px;padding-top:16px;border-top:1px solid var(--border)}

/* cover */
.cover{display:flex;flex-direction:column;align-items:center;text-align:center;justify-content:center;height:100%;padding:0 40px}
.cover img{width:1.7in;height:auto;margin-bottom:.4in}
.cover h1{font:400 42pt/1 var(--font-display);letter-spacing:-.03em;margin:8pt 0 12pt}
.cover .sub{font:400 15pt/1.4 var(--font-display);max-width:22em;margin:0 0 24pt}
.cover .rule{width:120px;height:1px;background:var(--gold);margin:0 0 22px}
.cover .ver{font:400 8.5pt/1.6 var(--font-mono);color:var(--muted)}
.cover .note{font-size:8.5pt;color:var(--muted);max-width:34em;margin-top:.5in}

.pager{position:fixed;z-index:20;bottom:20px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:4px;background:var(--bg);border:1px solid var(--border);border-radius:4px;padding:3px;box-shadow:0 6px 18px color-mix(in oklab,#14202e 10%,transparent)}
body:not(.no-rail) .pager{left:calc(50% + var(--rail) / 2)}
body.drawer-open:not(.narrow):not(.no-rail) .pager{left:calc(50% + (var(--rail) - var(--drawer)) / 2)}
body.drawer-open:not(.narrow).no-rail .pager{left:calc(50% - var(--drawer) / 2)}
.pager button{min-width:44px;min-height:40px;border:0;background:none;border-radius:3px;cursor:pointer;display:grid;place-items:center}
.pager button:hover{background:var(--surface)}
.pager button:disabled{opacity:.35;cursor:default;background:none}
.pager .count{font:500 12px/1 var(--font-mono);padding:0 10px;color:var(--fg)}
.pager svg{width:16px;height:16px}

/* ---------- reader view ---------- */
.reader{background:var(--bg);max-width:820px;margin:32px auto 96px;padding:64px 70px 80px;border:1px solid var(--border)}
.reader .r-head{border-bottom:1px solid var(--gold);padding-bottom:20px;margin-bottom:36px;display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.reader .r-head h1{font:400 44px/1.05 var(--font-display);letter-spacing:-.025em;margin:6px 0 8px}
.reader .r-head p{margin:0;color:var(--muted);font-size:14px;max-width:34em}
.reader section{max-width:680px}
.reader h2.ch{font-size:28px;margin:48px 0 16px}
.reader .para{font-size:18px;line-height:1.65;margin-bottom:16px}
.reader .para .pid{left:-62px;font-size:10.5px}
.reader .para .cnt{right:-58px}

/* ---------- export ---------- */
.export{max-width:1100px;margin:40px auto 96px;padding:0 32px;display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:48px;align-items:start}
.export .preview{display:grid;place-items:center;padding:32px;background:var(--surface);border:1px solid var(--border)}
.export .preview .stack-inner{zoom:.52}
.export .preview .sheet{position:relative;height:11in}
.export .opts{background:var(--bg);border:1px solid var(--border);padding:28px 28px 24px}
.export h2{font:400 28px/1.15 var(--font-display);letter-spacing:-.015em;margin:4px 0 6px}
.export .lead{color:var(--muted);margin:0 0 20px;font-size:14px}
fieldset{border:0;margin:0 0 20px;padding:0}
legend{font-weight:600;font-size:14px;margin-bottom:8px}
.choice{display:grid;grid-template-columns:20px 1fr;gap:4px 12px;align-items:start;padding:12px;border:1px solid var(--border);border-radius:4px;margin-bottom:8px;cursor:pointer}
.choice:hover{border-color:var(--muted)}
.choice:has(input:checked){border-color:var(--fg);background:var(--surface)}
.choice input{margin:3px 0 0;accent-color:var(--accent);width:16px;height:16px}
.choice b{font-weight:600;font-size:14.5px}
.choice span{grid-column:2;font-size:13px;color:var(--muted)}
.check{display:flex;align-items:center;gap:10px;min-height:36px;font-size:14px;cursor:pointer}
.check input{accent-color:var(--accent);width:16px;height:16px}
.cite{font:400 12px/1.55 var(--font-mono);background:var(--surface);border:1px solid var(--border);padding:12px;margin:0 0 8px;color:var(--fg);word-break:break-word}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:4px;font-weight:600;font-size:14.5px;letter-spacing:.02em;cursor:pointer;text-decoration:none;border:1px solid var(--border);background:var(--bg);color:var(--fg)}
.btn:hover{border-color:var(--muted);background:var(--surface)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#ffffff}
.btn.primary:hover{background:color-mix(in oklch,#0b2e50 84%,#ffffff)}
.btn.primary:disabled{opacity:.45;cursor:not-allowed;background:var(--accent)}
.btn.small{min-height:36px;padding:0 12px;font-size:13px}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ---------- dialogue drawer ---------- */
.drawer{position:fixed;z-index:40;top:var(--bar);right:0;bottom:0;width:var(--drawer);background:var(--bg);border-left:1px solid var(--border);display:flex;flex-direction:column;transform:translateX(100%);transition:transform .32s var(--ease);visibility:hidden}
body.drawer-open .drawer{transform:none;visibility:visible}
.d-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;padding:18px 20px 14px;border-bottom:1px solid var(--border)}
.d-head h2{font:400 21px/1.2 var(--font-display);margin:2px 0 0}
.d-head .ref{font:400 11.5px/1.4 var(--font-mono);color:var(--muted)}
.d-body{flex:1;overflow:auto;padding:16px 20px 24px}
.quote{font:400 14.5px/1.55 var(--font-display);background:var(--surface);padding:12px 14px;margin:0 0 12px;border-radius:2px}
.notice{font-size:13px;border:1px solid var(--border);border-radius:4px;padding:10px 12px;margin-bottom:12px}
.notice b{font-weight:600}
.notice button{background:none;border:0;padding:0;margin-top:6px;text-decoration:underline;text-underline-offset:3px;cursor:pointer;font-size:13px;font-weight:500;min-height:28px}
.old{font:400 13.5px/1.5 var(--font-display);color:var(--muted);margin-top:8px;padding-top:8px;border-top:1px dashed var(--border)}
.old del{text-decoration-color:var(--muted)}
.threads{list-style:none;margin:0;padding:0}
.thread{border-top:1px solid var(--border);padding:14px 0 6px}
.c{display:grid;grid-template-columns:30px 1fr;gap:10px;margin-bottom:10px}
.c .av{width:30px;height:30px;border-radius:50%;background:var(--surface);border:1px solid var(--border);display:grid;place-items:center;font:600 11px/1 var(--font-body);color:var(--fg)}
.c .av.staff{background:var(--fg);color:#ffffff;border-color:var(--fg)}
.c .who{font-size:13px;line-height:1.3}
.c .who b{font-weight:600}
.c .who span{color:var(--muted)}
.c .tag{display:inline-block;font:500 10.5px/1 var(--font-body);letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--border);border-radius:2px;padding:3px 5px;margin-left:6px;color:var(--muted);vertical-align:1px}
.c .txt{font-size:14px;margin:4px 0 6px}
.c .src{display:block;font:400 11.5px/1.45 var(--font-mono);color:var(--muted);border-left:1px solid var(--gold);padding:2px 0 2px 10px;margin:4px 0 6px;word-break:break-word}
.c .acts{display:flex;gap:4px}
.c .acts button{background:none;border:0;min-height:32px;padding:0 6px;margin-left:-6px;font-size:12.5px;font-weight:500;color:var(--fg);cursor:pointer;border-radius:3px}
.c .acts button:hover{background:var(--surface)}
.c.removed .txt{font-style:italic;color:var(--muted)}
.c.pending{opacity:1}
.c.pending .txt{color:var(--fg)}
.replies{list-style:none;margin:0 0 0 14px;padding:0 0 0 26px;border-left:1px solid var(--border)}
.typing{font-size:12.5px;color:var(--muted);margin:0 0 10px 40px;display:flex;align-items:center;gap:6px}
.typing i{width:4px;height:4px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{50%{opacity:.25}}
.reply-box{margin:4px 0 12px 40px}
.compose{border-top:1px solid var(--border);padding:14px 20px 16px;background:var(--bg)}
.compose label{display:block;font-weight:600;font-size:13.5px;margin-bottom:6px}
textarea,input[type="url"],input[type="search"]{width:100%;border:1px solid var(--border);border-radius:4px;padding:10px 12px;background:var(--bg);font-size:14px;line-height:1.45}
textarea{min-height:78px;resize:vertical}
textarea:hover,input[type="url"]:hover,input[type="search"]:hover{border-color:var(--muted)}
.hint{font-size:12px;color:var(--muted);margin:6px 0 10px}
.hint.err{color:var(--fg);font-weight:500}
.linkish{background:none;border:0;padding:0;min-height:36px;font-size:13px;font-weight:500;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.d-foot{font-size:11.5px;color:var(--muted);padding:0 20px 12px}
.empty{font-size:14px;color:var(--muted);padding:12px 0}

/* ---------- remote cursors ---------- */
.cursor{position:fixed;z-index:45;left:0;top:0;pointer-events:none;transition:opacity .4s;will-change:transform}
.cursor svg{width:18px;height:18px;display:block;filter:drop-shadow(0 1px 1px color-mix(in oklab,#14202e 30%,transparent))}
.cursor .lbl{display:inline-block;margin:2px 0 0 12px;padding:3px 7px;border-radius:2px;color:#ffffff;font:500 11.5px/1.3 var(--font-body);letter-spacing:.02em;white-space:nowrap}
.cursor.a path{fill:var(--accent)} .cursor.a .lbl{background:var(--accent)}
.cursor.b path{fill:var(--muted)} .cursor.b .lbl{background:var(--muted)}
.cursor .lbl small{font-weight:400;opacity:.9;margin-left:4px}
body:not(.dlg) .cursor,body:not(.presence-on) .cursor{opacity:0}

/* popovers */
.pop{position:fixed;z-index:60;top:calc(var(--bar) + 6px);width:380px;background:var(--bg);border:1px solid var(--border);border-radius:4px;box-shadow:0 16px 40px color-mix(in oklab,#14202e 16%,transparent);padding:14px}
.results{list-style:none;margin:10px 0 0;padding:0;max-height:50vh;overflow:auto}
.results button{width:100%;text-align:left;border:0;background:none;padding:10px 8px;border-radius:3px;cursor:pointer;font-size:13.5px;line-height:1.45}
.results button:hover{background:var(--surface)}
.results .mono{font-size:11px;color:var(--muted);display:block}
.toast{position:fixed;z-index:70;left:50%;bottom:76px;transform:translate(-50%,12px);opacity:0;background:var(--fg);color:#ffffff;padding:10px 16px;border-radius:4px;font-size:13.5px;transition:opacity .2s,transform .2s;pointer-events:none}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- responsive ---------- */
@media (max-width:1200px){ .rail{box-shadow:12px 0 32px color-mix(in oklab,#14202e 10%,transparent)} body:not(.no-rail) main{padding-left:0} body:not(.no-rail) .pager{left:50%} }
@media (max-width:900px){
  .bar{gap:6px;padding:0 10px}
  .bar .doc{display:none}
  .tabs{margin-left:4px}
  .tabs button{padding:0 10px;font-size:13px}
  .wide-only{display:none!important}
  .drawer{width:100%;top:auto;height:82vh;border-left:0;border-top:1px solid var(--border);transform:translateY(100%);box-shadow:0 -12px 40px color-mix(in oklab,#14202e 18%,transparent)}
  .reader{margin:0;padding:32px 20px 64px 44px;border:0}
  .reader .r-head h1{font-size:34px}
  .reader .para{font-size:17px}
  .reader .para .pid{left:-38px;font-size:9.5px;opacity:.7}
  .reader .para .cnt{position:static;margin-left:6px;display:inline-flex;vertical-align:1px}
  .export{grid-template-columns:1fr;padding:0 16px;margin-top:20px}
  .export .preview{display:none}
  .pop{left:10px!important;right:10px;width:auto}
}
@media (max-width:520px){
  .bar .home{display:none}
  .tabs button{padding:0 8px;font-size:12.5px;letter-spacing:.01em}
  .switch span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .tool{padding:0 8px}
}
@media (min-width:901px){ .narrow-only{display:none!important} }
@media (prefers-reduced-motion:reduce){
  .desk-scroll{height:auto!important}
  .stack{position:static;height:auto;overflow:visible;padding:24px 0 96px}
  .stack-inner{height:auto}
  .sheet{position:relative;transform:none!important;visibility:visible!important;margin-bottom:28px;height:11in}
  .sheet .shade,.flap-wrap{display:none}
  .drawer{transition:none}
}

/* ---------- print / PDF export ---------- */
@media print{
  @page{size:letter;margin:0.8in}
  body{background:#ffffff}
  .bar,.rail,.pager,.drawer,.cursor,.pop,.toast,#desk-view,#export-view{display:none!important}
  main{padding:0!important}
  #reader-view{display:block!important}
  .reader{border:0;margin:0;padding:0;max-width:none}
  .para .cnt{display:none!important}
  .para .pid{opacity:1!important;position:static;margin-right:8px}
  body.print-no-ids .para .pid{display:none}
  .para{font-size:12pt;break-inside:avoid}
}

/* Public preview intentionally hides simulated remote presence. */
#presence,[data-od-id="readers-toggle"],#collab-pop,.cursor{display:none!important}
.demo-notice{font:400 13px/1.55 var(--font-body);color:var(--fg);background:var(--surface);border-left:2px solid var(--gold);padding:12px 16px;margin-bottom:16px}

/* Canonical Markdown rendering: typography and source fidelity without altering
   the approved OpenDesign paper/reader geometry. */
.plan-source-status{margin:12px clamp(16px,4vw,64px);padding:15px 20px;border-left:2px solid var(--gold);background:var(--bg);font:500 14px/1.6 var(--font-body)}
.src-note a{overflow-wrap:anywhere;text-decoration:underline;text-underline-offset:3px}
.md-rich{display:block;overflow-wrap:anywhere}
.md-rich>p{margin:0 0 12px}
.md-rich>p:last-child{margin-bottom:0}
.md-rich a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.md-rich a:hover{text-decoration-thickness:2px}
.md-rich strong{font-weight:700}
.md-rich em{font-style:italic}
.md-rich blockquote{border-left:2px solid var(--gold);margin:12px 0;padding:0 0 0 16px;color:var(--muted)}
.md-rich ul,.md-rich ol{margin:12px 0;padding-left:22px}
.md-rich li{margin:5px 0}
.md-rich li>p{margin:0}
.md-rich table{width:100%;border-collapse:collapse;margin:14px 0;font:400 12px/1.45 var(--font-body);display:block;overflow-x:auto;white-space:normal}
.md-rich th,.md-rich td{border:1px solid var(--border);padding:8px 9px;text-align:left;min-width:65px;vertical-align:top}
.md-rich th{background:var(--surface);font-weight:600}
.md-rich pre{padding:14px;background:var(--surface);border:1px solid var(--border);overflow:auto;font:400 12px/1.6 var(--font-mono);white-space:pre}
.md-rich code{font:400 .82em/1.6 var(--font-mono);overflow-wrap:anywhere}
.md-rich img{display:block;max-width:100%;height:auto;margin:14px auto}
.md-rich hr{border:0;border-top:1px solid var(--border);margin:18px 0}
.sheet .sheet-body{overflow-y:auto;scrollbar-width:thin}
.sheet .md-rich table{font-size:9pt}
.sheet .md-rich th,.sheet .md-rich td{padding:5px 6px}
.sheet .md-rich pre{font-size:8.5pt}
.sheet .md-rich img{max-height:3.5in;object-fit:contain}
.reader .md-rich table{font-size:13px}
.reader .md-rich blockquote{padding-left:22px}
.reader .md-rich img{max-height:70vh;object-fit:contain}
.reader .para:focus-visible,.sheet .para:focus-visible{outline-offset:3px}
#export-form button:disabled{opacity:.5;cursor:not-allowed}
@media(max-width:900px){
 .md-rich table{font-size:11.5px}
 .reader .md-rich table{display:block;overflow-x:auto}
}
@media print{
 .reader .md-rich img{max-height:5in}
 .reader .md-rich pre,.reader .md-rich table{break-inside:avoid}
 .reader .para{break-inside:avoid}
}


/* ---------- Canonical, collapsible outline and integrated search ---------- */
:root{--rail:310px}
.rail{padding:23px 12px 18px 16px;scrollbar-width:thin;scrollbar-color:#bfc4c5 transparent}
.rail .outline-controls{position:sticky;top:-23px;z-index:2;background:var(--desk);padding:1px 7px 13px 7px;border-bottom:1px solid var(--border);margin-bottom:7px}
.outline-title-row{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:21px}
.rail .outline-title-row h2{margin:0;letter-spacing:.12em;color:var(--fg)}
.outline-tree-actions{display:flex;align-items:center;gap:5px}
.rail .outline-tree-actions button{display:inline-flex;width:auto;min-height:26px;padding:4px 5px;font:500 10px/1.2 var(--font-body);color:var(--muted);white-space:nowrap;align-items:center;border-radius:2px}
.rail .outline-tree-actions button:hover{color:var(--fg);background:var(--bg)}
.outline-search-label{display:block;font:600 11.5px/1.4 var(--font-body);color:var(--fg);margin:0 0 8px}
.outline-search-field{position:relative;display:flex;align-items:center;gap:6px;height:42px;padding:0 7px 0 10px;background:var(--bg);border:1px solid #d2d3d0;border-radius:3px}
.outline-search-field:focus-within{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.outline-search-field svg{width:17px;height:17px;flex:none;color:#77808a}
.rail .outline-search-field input{width:100%;min-width:0;border:0;outline:0;box-shadow:none;background:none;padding:6px 0;font:400 12.5px/1.35 var(--font-body)}
.outline-search-field input::placeholder{color:#8b9297}
/* Keep one accessible clear action on WebKit mobile, not two overlapping x controls. */
#outline-search::-webkit-search-cancel-button,#outline-search::-webkit-search-decoration{display:none;-webkit-appearance:none;appearance:none}
.rail .outline-search-field button{width:23px;min-width:23px;min-height:28px;flex:none;padding:0;display:grid;place-items:center;font:400 22px/1 var(--font-body);color:var(--muted)}
.outline-search-feedback{display:flex;align-items:center;justify-content:space-between;gap:6px;min-height:30px;margin-top:8px}
#outline-search-status{font:400 10px/1.5 var(--font-mono);color:var(--muted);overflow-wrap:anywhere}
.outline-search-tools{display:flex;align-items:center;gap:2px;flex:none}
.rail .outline-search-tools button{display:grid;place-items:center;width:28px;min-height:27px;padding:0;border:1px solid var(--border);background:var(--bg);border-radius:2px;font:600 16px/1 var(--font-body)}
.rail .outline-search-tools button:hover:not(:disabled){border-color:var(--gold);background:var(--surface)}
.rail .outline-search-tools button:disabled{opacity:.35;cursor:not-allowed}
.rail .outline-tree,.rail .outline-tree ol{list-style:none;margin:0;padding:0}
.rail .outline-tree{padding:0 6px 15px 0;flex:none}
.outline-item{margin:1px 0}
.outline-row{display:flex;align-items:flex-start;min-width:0;gap:1px}
.rail .outline-toggle,.outline-toggle-spacer{width:24px;min-width:24px;flex:none;min-height:38px;padding:0;display:grid;place-items:center;background:transparent;border:0;color:#637584;border-radius:2px}
.outline-toggle-spacer{pointer-events:none}
.outline-toggle svg{width:15px;height:15px;transition:transform .15s var(--ease)}
.outline-toggle[aria-expanded="false"] svg{transform:rotate(-90deg)}
.rail .outline-toggle:hover{background:var(--bg);color:var(--accent)}
.rail .outline-link{width:100%;flex:1;min-width:0;min-height:39px;display:flex;align-items:center;justify-content:space-between;gap:7px;padding:7px 7px;text-align:left;background:transparent;border:0;border-radius:2px;font:400 12px/1.4 var(--font-body);color:#475564;cursor:pointer}
.rail .outline-link:hover{background:var(--bg)}
.rail .outline-link[aria-current="location"]{color:var(--accent);background:var(--bg);font-weight:600;box-shadow:inset 2px 0 0 var(--gold)}
.rail .outline-document>.outline-row .outline-link{font-weight:600;color:var(--fg);font-size:12.5px}
.rail .outline-children{margin:0 0 5px 12px;padding-left:9px;border-left:1px solid #d8d9d4}
.outline-label{display:inline-block;flex:1;min-width:0;overflow-wrap:anywhere;text-wrap:pretty}
.outline-tree .pg{flex:none;align-self:center;color:#8a9196;white-space:nowrap;font:400 10px/1 var(--font-mono)}
.outline-cover .outline-link{margin-left:25px;max-width:calc(100% - 25px)}
.outline-match-count{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:19px;flex:none;padding:0 3px;margin-top:10px;font:500 9px/1 var(--font-mono);background:#eee8da;color:#795d2d;border-radius:2px}
.outline-empty{color:var(--muted);padding:15px 10px 25px;font:400 12px/1.6 var(--font-body)}
.rail .src-note{padding:15px 9px 0;margin-top:auto}
mark.outline-label-mark{padding:0 1px;background:#f3e5bb;box-shadow:none}
mark.plan-search-mark{background:#f5e5bb;box-shadow:inset 0 -2px 0 #c39b50;padding:0 1px;border-radius:1px}
mark.plan-search-current{background:#f3c86d;box-shadow:inset 0 -2px 0 #855b18}
.reader .doc-heading,.sheet .doc-heading{scroll-margin-top:calc(var(--site-top) + var(--bar) + 22px)}
.doc .doc-heading:focus{outline:none}
.doc .doc-heading:focus-visible{outline:2px solid var(--gold);outline-offset:4px}
.doc h4.doc-heading{font:600 15px/1.35 var(--font-display);margin:18px 0 8px}
.doc h5.doc-heading,.doc h6.doc-heading{font:600 13px/1.4 var(--font-body);margin:14px 0 7px}
.sheet h2.ch{margin-top:0}
.sheet h3.doc-heading{font-size:13.5pt}
.sheet h4.doc-heading{font-size:12pt}
.sheet h5.doc-heading,.sheet h6.doc-heading{font-size:10pt}
@media(max-width:900px){
 .rail{width:min(86vw,330px);padding:20px 11px 18px 13px}
 .rail .outline-controls{top:-20px}
 .rail .outline-tree{padding-bottom:35px}
}
@media print{
 mark.plan-search-mark,mark.plan-search-current{background:transparent!important;box-shadow:none!important;padding:0}
}


/* Mobile reader citation rail: keep the pilcrow link available without allowing
   long stable IDs to paint over the manuscript prose. The full ID remains in
   accessible link text and copy/citation behavior. */
@media(max-width:900px){
  .reader .para .pid{
    left:-35px;top:6px;width:15px;max-width:15px;
    overflow:hidden;white-space:nowrap;text-overflow:clip;
    font-size:10px;line-height:1.2;opacity:.72;
  }
}
@media(max-width:520px){
  .reader .para .pid{left:-35px;width:14px;max-width:14px}
}


/* --- Plan accessibility: legible reflow, magnified paper, speech, translation --- */
.plan-listen-trigger[aria-pressed="true"]{border-color:var(--gold);background:#f4eee1}
.plan-access-menu{position:relative;display:inline-flex;align-items:center;flex:none}
.plan-access-menu>summary{list-style:none;cursor:pointer}
.plan-access-menu>summary::-webkit-details-marker{display:none}
.plan-access-menu[open]>summary{background:var(--surface);border-color:var(--border)}
.access-glyph{font:700 17px/1 var(--font-display);letter-spacing:-.04em;color:var(--accent)}
.plan-access-body{
  position:absolute;z-index:75;right:0;top:calc(100% + 12px);
  width:min(340px,calc(100vw - 24px));max-height:calc(100dvh - var(--bar) - 20px);
  overflow-y:auto;background:var(--bg);color:var(--fg);
  border:1px solid var(--border);border-radius:4px;
  box-shadow:0 16px 44px rgba(20,32,46,.16);
  padding:18px 19px 20px;scrollbar-width:thin
}
.plan-access-body h2{font:400 24px/1.15 var(--font-display);margin:0 0 15px}
.plan-access-section{padding:14px 0;border-top:1px solid var(--border)}
.plan-access-section>h3{font:600 14px/1.3 var(--font-body);margin:0 0 11px}
.access-label-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.plan-access-section label{display:block;font:600 12px/1.4 var(--font-body)}
.access-label-row output{font:600 13px var(--font-mono);color:var(--accent)}
.access-zoom-controls,.access-speech-controls{display:flex;gap:6px;margin:10px 0}
.access-zoom-controls button,.access-speech-controls button,.access-primary,#translate-original{
  min-height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid #c9ced0;border-radius:3px;
  padding:6px 11px;font:600 12px/1.3 var(--font-body);cursor:pointer
}
.access-zoom-controls button{flex:1;font-size:15px}
.access-zoom-controls button:nth-child(2){font-size:12px}
.access-speech-controls button{flex:1;padding:6px;font-size:11px}
.plan-access-body button:hover:not(:disabled){background:var(--surface);border-color:var(--gold)}
.plan-access-body button:disabled{opacity:.45;cursor:default}
.plan-access-section p{font:400 11px/1.6 var(--font-body);color:var(--muted);margin:8px 0 0}
.access-inline-label{display:flex!important;align-items:center;justify-content:space-between;gap:8px;margin-top:10px}
.plan-access-section select{
  width:100%;min-height:39px;margin:7px 0 8px;border:1px solid #c9ced0;
  background:var(--bg);color:var(--fg);border-radius:3px;
  padding:7px 9px;font:400 12px/1.4 var(--font-body)
}
.access-inline-label select{width:115px;margin:0}
.plan-access-section .access-primary{background:var(--accent);color:#fff;width:100%;border-color:var(--accent)}
.plan-access-section .access-primary:hover:not(:disabled){background:#214668;color:#fff}
#translate-original{width:100%;margin-top:8px}
#translation-status{overflow-wrap:anywhere}
.plan-access-body .access-note{font-size:10px}
/* Zoom the whole canvas to preserve line measure, not just font size. */
#reader-view{overflow-x:auto;overscroll-behavior-x:contain}
.reader{--reading-scale:1;width:820px;max-width:none;zoom:var(--reading-scale)}
.reader .md-rich img{max-width:100%}
.reader .md-rich p,.reader .md-rich li{overflow-wrap:anywhere}
.reader .para:has(.plan-speech-current),.reader .para.plan-speaking,
.sheet .para.plan-speaking{background:#fff1ce;box-shadow:inset 3px 0 var(--gold)}
.plan-machine-translation{overflow-wrap:anywhere}
.plan-machine-translation[dir="rtl"]{direction:rtl;text-align:right}
.plan-translation-banner{
  margin:0 0 22px;padding:13px 16px;border:1px solid #d5c296;
  color:#76592a;background:#fff9ec;font:400 13px/1.5 var(--font-body)
}
.stack.is-magnified{
  display:flex;justify-content:safe center;align-items:flex-start;
  overflow-x:auto;overflow-y:auto;padding-inline:20px;
  overscroll-behavior:contain;scrollbar-width:auto
}
.stack.is-magnified .stack-inner{flex:none}
body.access-high-contrast{--muted:#3b4754;--border:#8d9293}
@media(max-width:900px){
  /* 100vw is independent of zoom; a percentage width contracts the canvas. */
  .reader{width:min(820px,100vw)}
  .plan-access-body{right:-42px}
  .plan-listen-trigger{flex:none}
}
@media(max-width:520px){
  .bar{gap:3px;padding-inline:5px}
  .tabs{margin-left:0}
  .tabs button{padding-inline:6px;font-size:12px}
  .plan-access-menu .tool{min-width:38px;padding:0 6px}
  .plan-listen-trigger{min-width:37px;padding:0 6px}
  .plan-access-body{position:fixed;right:9px;top:calc(var(--site-top) + var(--bar) + 6px);max-height:calc(100dvh - var(--site-top) - var(--bar) - 14px)}
}
@media print{
  .plan-access-menu,.plan-listen-trigger{display:none!important}
  #reader-view{overflow:visible!important}
  .reader{--reading-scale:1!important;zoom:1!important;width:auto!important;max-width:none}
  .reader .para{font-size:12pt!important}
  .reader h2.ch{font-size:20pt}
  .reader .plan-translation-banner{display:block}
}
@media(prefers-reduced-motion:reduce){
  .stack.is-magnified{overflow-y:visible}
}


/* Plan accessibility hardening: high contrast and cancellable localization */
.plan-access-body .access-check-row{
 display:flex;align-items:center;gap:10px;margin-top:14px;
 min-height:44px;cursor:pointer;font:600 12px/1.4 var(--font-body);
}
.access-check-row input{width:20px;height:20px;flex:none;accent-color:var(--accent)}
#translate-cancel{
 display:inline-flex;align-items:center;justify-content:center;width:100%;
 min-height:40px;margin-top:8px;padding:7px 12px;border:1px solid #a5b1bb;
 border-radius:3px;background:#fff;color:var(--accent);
 font:600 12px/1.4 var(--font-body);cursor:pointer
}
#translate-cancel:hover{border-color:var(--accent);background:var(--surface)}
body.access-high-contrast{
 --fg:#061728;--muted:#29394a;--border:#87939f;
 --accent:#082945;--gold:#936214;--desk:#e5e9ed;--surface:#f0f2f5;
}
body.access-high-contrast .reader .para,
body.access-high-contrast .sheet .para{font-weight:500}
body.access-high-contrast .reader a,
body.access-high-contrast .sheet a{
 text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px
}
body.access-high-contrast :focus-visible{outline:3px solid #082945;outline-offset:3px}
body.access-high-contrast .plan-speaking{background:#ffe9a7;box-shadow:inset 4px 0 #80540b}
@media (forced-colors:active){
 .access-check-row input{forced-color-adjust:auto}
 .reader .para.plan-speaking,.sheet .para.plan-speaking{outline:2px solid Highlight}
}

/* Pin both navigation layers; other site pages retain their own header layout. */
body{--site-top:76px}
body .site-header{position:fixed;inset:0 0 auto 0;z-index:55}
.bar.plan-toolbar{top:var(--site-top);z-index:48;height:var(--bar)}
.rail{top:calc(var(--site-top) + var(--bar))}
.drawer{top:calc(var(--site-top) + var(--bar))}
.pop{top:calc(var(--site-top) + var(--bar) + 6px)}
main{padding-top:calc(var(--site-top) + var(--bar));scroll-margin-top:calc(var(--site-top) + var(--bar) + 16px)}
.stack{top:calc(var(--site-top) + var(--bar));height:calc(100vh - var(--site-top) - var(--bar))}
@media(max-width:900px){.drawer{top:auto}}
@media(max-width:760px){body{--site-top:66px}}
@media print{.site-header,.site-mobile-nav,.bar.plan-toolbar{display:none!important}main{padding-top:0!important}}

/* WEB-UX-02: clearly announce on-demand paper layout without blocking Reader. */
.desk-status{position:fixed;z-index:22;left:50%;top:calc(var(--site-top) + var(--bar) + 20px);transform:translateX(-50%);max-width:min(560px,90vw);padding:12px 18px;border:1px solid var(--border);border-radius:4px;background:var(--bg);box-shadow:0 4px 18px #14202e15;color:var(--fg);font-size:14px;text-align:center}
.desk-status[hidden]{display:none!important}