/* The Oversight Simulator. Lab ledger look: paper, ink, graphite, rule, one ledger blue, stamp red once.
   Display: Newsreader. Body: Public Sans. Figures: IBM Plex Mono.
   Chart marks use their own two tokens (--m-acc, --m-neu), stepped and validated per mode
   with the dataviz palette script; text never wears them. */
:root{
  --paper:#f3f0e6; --ink:#1c1d19; --graphite:#5d5f55; --rule:#d3cdb9; --ledger:#1d4a6b; --stamp:#a3361d;
  --m-acc:#2a5f9a; --m-neu:#85857a; --m-faint:#d3cdb9; --wash:rgba(133,133,122,.18);
  --display:"Newsreader",Georgia,"Times New Roman",serif;
  --body:"Public Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){ --paper:#171814; --ink:#e7e3d5; --graphite:#a09f93; --rule:#3a3a32; --ledger:#93bcdc; --stamp:#e58d6c;
    --m-acc:#5b98d2; --m-neu:#69685e; --m-faint:#4a4a40; --wash:rgba(160,159,147,.16); }
}
:root[data-theme="dark"]{ --paper:#171814; --ink:#e7e3d5; --graphite:#a09f93; --rule:#3a3a32; --ledger:#93bcdc; --stamp:#e58d6c;
  --m-acc:#5b98d2; --m-neu:#69685e; --m-faint:#4a4a40; --wash:rgba(160,159,147,.16); }

*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;background:var(--paper)}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.6 var(--body);font-variant-numeric:tabular-nums;overflow-x:hidden}
.frame{max-width:74rem;margin:0 auto;padding:0 16px}
a{color:var(--ledger);text-decoration-thickness:1px;text-underline-offset:.2em}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--ledger);outline-offset:2px}
p{margin:0 0 1rem;max-width:66ch}
h1,h2,h3{font-family:var(--display);font-weight:500;letter-spacing:-.01em;margin:0}
h1{font-size:2.2rem;line-height:1.1;margin:0 0 .9rem;font-variation-settings:"opsz" 60}
h2{font-size:1.35rem;line-height:1.25;margin:0 0 .6rem}
h3{font-size:1.1rem;line-height:1.3;margin:1.5rem 0 .4rem}
.mono,.src{font-family:var(--mono);font-size:.74rem;letter-spacing:.01em;color:var(--graphite)}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:8px;background:var(--paper);padding:.25rem .5rem;z-index:9}

/* masthead */
.masthead{border-top:4px solid var(--ink);border-bottom:1px solid var(--ink)}
.mast{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:.2rem 2rem;padding-top:.85rem;padding-bottom:.7rem}
.brand{font-family:var(--display);font-size:1.5rem;font-weight:600;color:var(--ink);text-decoration:none;letter-spacing:-.015em}
.register{margin:0;font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--graphite)}

main{padding-top:1.75rem;padding-bottom:3rem}
.kicker,.lbl{font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.09em;color:var(--graphite);margin:0 0 .6rem}
.lede{font-size:1.15rem;line-height:1.5;max-width:60ch}
.pagehead{padding-bottom:1.25rem;border-bottom:3px double var(--ink)}

/* what this is */
.whatis{border-left:2px solid var(--stamp);padding:.15rem 0 .1rem .9rem;margin:1.25rem 0 0}
.whatis .lbl{color:var(--stamp)}
.whatis p{font-size:.97rem;margin-bottom:.6rem}

/* layout */
.sim{display:grid;gap:0 2.5rem;margin-top:1.5rem}
.controls{border-top:1px solid var(--ink);padding-top:.75rem;min-width:0}
.panels{min-width:0}
@media (min-width:62rem){
  .sim{grid-template-columns:19.5rem minmax(0,1fr)}
  .controls{position:sticky;top:.75rem;align-self:start;max-height:calc(100vh - 1.5rem);overflow-y:auto;padding-right:.25rem}
}

/* controls */
.ctl{padding:.5rem 0 .45rem;border-bottom:1px solid var(--rule)}
.ctl label{display:flex;justify-content:space-between;align-items:baseline;gap:.75rem;font-size:.95rem;line-height:1.3}
.ctl output{font-family:var(--mono);font-size:.92rem;white-space:nowrap}
.ctl .coef{display:block;font-family:var(--mono);font-size:.72rem;color:var(--graphite);margin-top:.1rem}
.ctl input[type=range]{width:100%;accent-color:var(--ledger);margin:.2rem 0 0;height:2.25rem;cursor:pointer}
.ctl input:focus-visible{outline:2px solid var(--ledger);outline-offset:2px}
.grp{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.09em;color:var(--graphite);margin:1rem 0 0;padding-bottom:.2rem}
.grp:first-child{margin-top:0}
.note-held{font-size:.9rem;color:var(--graphite);padding:.5rem 0;border-bottom:1px solid var(--rule);margin:0}
.pubtag{display:inline-block;font-family:var(--mono);font-size:.66rem;text-transform:uppercase;letter-spacing:.08em;border:1.5px solid currentColor;border-radius:2px;padding:0 .35rem;color:var(--graphite);margin-left:.3rem;white-space:nowrap}
.btns{display:flex;flex-wrap:wrap;gap:.4rem;margin:.9rem 0 .5rem}

/* panels */
.panel{border-top:1px solid var(--ink);padding:1rem 0 1.5rem}
.panel+.panel{margin-top:.5rem}
.pnum{font-family:var(--mono);font-size:.78rem;color:var(--ledger);font-weight:500;margin:0 0 .3rem;letter-spacing:.04em}
.readout{border-bottom:1px solid var(--rule);padding:.25rem 0 .4rem;margin:.5rem 0 .75rem}
.readout p{margin-bottom:.45rem}
.big{font-family:var(--mono);font-weight:500;font-size:2.6rem;line-height:1;letter-spacing:-.02em;margin:.15rem 0 .55rem!important}
.big.neg{color:var(--graphite)}
.big.pos{color:var(--ledger)}
.carry{font-size:.97rem;max-width:62ch}
.withheld{border:1px dashed var(--rule);padding:.9rem 1rem;margin:.5rem 0 1rem}
.withheld p{margin-bottom:.4rem;font-size:.97rem}

/* charts */
.chart{margin:.75rem 0 .25rem;padding:.75rem 0 .5rem;border-top:1px solid var(--rule)}
.chart svg{display:block;width:100%;height:auto;overflow:visible}
.chart text{font-family:var(--body)}
.legend{display:flex;flex-wrap:wrap;gap:.2rem 1.2rem;margin:0 0 .4rem;font-size:.85rem;color:var(--graphite)}
.legend span{display:inline-flex;align-items:center;gap:.4rem}
.key{display:inline-block;width:1.2rem;height:0;border-top:2px solid var(--m-acc)}
.key.neu{border-top-color:var(--m-neu)}
.key.box{height:.7rem;border:0;background:var(--m-acc);width:.9rem;border-radius:1px}
.key.box.neu{background:var(--m-neu)}
.key.wash{height:.7rem;border:0;background:var(--wash);width:.9rem;border-top:1px solid var(--m-neu);border-bottom:1px solid var(--m-neu)}
.t-axis{font-size:11px;fill:var(--graphite)}
.t-lab{font-size:12px;fill:var(--ink)}
.t-lab.strong{font-weight:600}
.t-val{font-family:var(--mono)!important;font-size:11px;fill:var(--ink)}
.t-note{font-size:11px;fill:var(--graphite);font-style:italic}
.grid{stroke:var(--rule);stroke-width:1}
.zero{stroke:var(--graphite);stroke-width:1}
.hz{stroke:var(--graphite);stroke-width:1;stroke-dasharray:4 3}
.cursor{stroke:var(--ink);stroke-width:1;stroke-dasharray:2 2}
.f-acc{fill:var(--m-acc)}
.f-neu{fill:var(--m-neu)}
.f-faint{fill:var(--m-faint)}
.key.box.faint{background:var(--m-faint)}
.f-wash{fill:var(--wash);stroke:var(--m-neu);stroke-width:1}
.selrow{fill:var(--rule);fill-opacity:.4}
.ln{fill:none;stroke-width:2;stroke-linejoin:round;stroke-linecap:round}
.ln.acc{stroke:var(--m-acc)}
.ln.neu{stroke:var(--m-neu)}
.dot{stroke:var(--paper);stroke-width:2}
.dot.acc{fill:var(--m-acc)}
.dot.neu{fill:var(--m-neu)}
.pick{fill:none;stroke:var(--ink);stroke-width:2}
.whisk{stroke:var(--ink);stroke-width:1.5}
.hit{fill:transparent;stroke:none;cursor:pointer}
.hit:focus{outline:none}
.hit:focus-visible{stroke:var(--ledger);stroke-width:1.5;fill:transparent}
figcaption{margin-top:.5rem;font-size:.87rem;color:var(--graphite);max-width:66ch}
figcaption .src{display:block;margin-top:.25rem}
details{margin:.4rem 0 0;font-size:.86rem}
summary{cursor:pointer;color:var(--ledger);font-family:var(--mono);font-size:.76rem;min-height:2rem;display:list-item}
table.data{border-collapse:collapse;margin-top:.4rem;width:100%;max-width:40rem}
table.data th,table.data td{text-align:left;padding:.3rem .75rem .3rem 0;border-bottom:1px solid var(--rule);font-weight:400;vertical-align:top}
table.data th{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--graphite)}
table.data td:not(:first-child){font-family:var(--mono);font-size:.82rem}
.tblwrap{overflow-x:auto}

/* scoreboard */
.score{list-style:none;margin:.25rem 0 0;padding:0}
.score li{padding:.65rem 0;border-bottom:1px solid var(--rule)}
.score .say{display:block;font-size:1rem;line-height:1.45}
.score .src{display:block;margin-top:.2rem}
.score .say b{font-family:var(--mono);font-weight:500;font-size:.95rem}

.tip{position:absolute;z-index:8;pointer-events:none;background:var(--paper);color:var(--ink);border:1px solid var(--ink);padding:.35rem .55rem;font-family:var(--mono);font-size:.75rem;line-height:1.4;max-width:18rem;box-shadow:2px 2px 0 var(--rule)}
.tip b{font-weight:600}

.colophon{border-top:1px solid var(--ink);padding-top:1rem;padding-bottom:2.5rem;font-size:.86rem;color:var(--graphite)}
.colophon p{margin-bottom:.4rem}

@media (min-width:40rem){ h1{font-size:2.7rem} }
@media (prefers-reduced-motion:no-preference){
  .btns button,.ctl{transition:border-color .15s,opacity .15s}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}
/* presets, compare, share */
.presets{display:flex;flex-direction:column;gap:.35rem;margin:.45rem 0 .5rem}
.presets button,.btns button{font-family:var(--mono);font-size:.8rem;background:var(--paper);color:var(--ledger);border:1px solid var(--rule);border-radius:2px;padding:.55rem .8rem;min-height:2.75rem;cursor:pointer;text-align:left}
.presets button:hover,.btns button:hover:not(:disabled){border-color:var(--ledger)}
.presets button:focus-visible,.btns button:focus-visible,select:focus-visible,.linkbox:focus-visible{outline:2px solid var(--ledger);outline-offset:2px}
.presets button[aria-pressed="true"]{border-color:var(--ink);color:var(--ink);box-shadow:inset 3px 0 0 var(--ledger)}
.presets button[aria-pressed="true"]::after{content:" · set";color:var(--graphite)}
.btns button:disabled{color:var(--graphite);cursor:not-allowed;opacity:.7}
.preset-read{font-size:.9rem;color:var(--ink);margin:0 0 .4rem}
.preset-read:empty{display:none}
.status{min-height:1.2em;margin:.2rem 0 .4rem}
.linkbox{width:100%;font-family:var(--mono);font-size:.75rem;padding:.45rem;border:1px solid var(--rule);background:var(--paper);color:var(--ink);border-radius:2px}
select{font:inherit;font-family:var(--mono);font-size:.85rem;background:var(--paper);color:var(--ink);border:1px solid var(--rule);border-radius:2px;padding:.4rem .5rem;min-height:2.5rem;margin-top:.3rem;width:100%}
.tbctl{display:grid;gap:0 1.5rem;margin:.25rem 0 .25rem}
@media (min-width:40rem){ .tbctl{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)} }
.tbctl .ctl label{flex-wrap:wrap}
.cmp{margin:0 0 .5rem}
.cmp table.data td:first-child{min-width:7.5rem}
.cmp caption{text-align:left;caption-side:top;margin:0 0 .2rem}
.key.box.pin{background:transparent;border:1.5px solid var(--ink)}
.key.ring{width:.65rem;height:.65rem;border:2px solid var(--ink);border-radius:50%;background:var(--m-acc)}
.key.cur{width:0;height:.9rem;border:0;border-left:1px dashed var(--ink)}
.f-pin{fill:none;stroke:var(--ink);stroke-width:1.5}
.bar80{stroke:var(--ink);stroke-width:1.5;stroke-dasharray:3 2}
.t-axis.strong{font-weight:600;fill:var(--ink)}
.cur-dot{fill:var(--m-acc);stroke:var(--ink);stroke-width:2}
.sub{font-size:1.05rem;margin:0 0 .5rem}
.multiples{display:grid;grid-template-columns:repeat(auto-fit,minmax(10.5rem,1fr));gap:.5rem 1rem}
.mult{min-width:0}
.mult-h{font-size:.9rem;font-weight:600;margin:0}
.mult .src{margin:0 0 .15rem}
.mult-svg{display:block;width:100%;height:auto;overflow:visible}

/* read me first */
.intro{max-width:34rem;width:calc(100% - 32px);background:var(--paper);color:var(--ink);border:1px solid var(--ink);border-top:4px solid var(--ink);padding:1.25rem 1.25rem 1rem;box-shadow:4px 4px 0 var(--rule)}
.intro::backdrop{background:rgba(28,29,25,.45)}
.intro h2{font-size:1.4rem;margin-bottom:.75rem}
.intro .lbl{color:var(--stamp)}
.intro p{font-size:.97rem}
.intro button.primary{font-family:var(--mono);font-size:.85rem;background:var(--ink);color:var(--paper);border:1px solid var(--ink);border-radius:2px;padding:.6rem 1rem;min-height:2.75rem;cursor:pointer}
.intro button.primary:focus-visible{outline:2px solid var(--ledger);outline-offset:3px}

.print-only{display:none}
.vh{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
/* compare table: at phone width each lever becomes a block of labelled cells, so nothing scrolls sideways */
@media (max-width:30rem){
  .cmp table.data,.cmp table.data tbody,.cmp table.data tr,.cmp table.data td{display:block;width:100%}
  .cmp table.data thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .cmp table.data tr{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.1rem .6rem;padding:.4rem 0;border-bottom:1px solid var(--rule)}
  .cmp table.data td{border:0;padding:0;font-size:.8rem}
  .cmp table.data td:first-child{grid-column:1 / -1;font-weight:600;min-width:0}
  .cmp table.data td:not(:first-child)::before{content:attr(data-label);display:block;font-family:var(--mono);font-size:.62rem;text-transform:uppercase;letter-spacing:.06em;color:var(--graphite)}
  .cmp table.data td:empty{display:none}
  .cmp table.data caption{display:block;width:100%}
}

@media print{
  @page{size:letter;margin:10mm 11mm}
  :root,:root[data-theme="dark"]{--paper:#ffffff;--ink:#1c1d19;--graphite:#4f5148;--rule:#cfc9b5;--ledger:#1d4a6b;--m-acc:#2a5f9a;--m-neu:#85857a;--m-faint:#d3cdb9;--wash:rgba(133,133,122,.18)}
  html,body{background:#fff;font-size:8.2pt;line-height:1.3}
  .controls,.btns,.tip,.intro,details,.skip,.whatis p:not(.lbl),.lede,.kicker,.sens-fig,.withheld p:first-child,#p-detect>.carry,#p-detect>h3,.tbctl,#p-detect .chart,#p-tier>.carry,#s-link,#m-offset,.chart .legend span:nth-child(3),#selfcheck-line,.colophon p:first-child,.pnum{display:none!important}
  .print-only{display:block!important}
  figcaption{font-size:0!important;margin:.1rem 0 0;line-height:1.1;max-width:none}
  figcaption .src{font-size:6.3pt;margin:0}
  .frame{max-width:none;padding:0}
  .masthead{border-top-width:3px}
  .mast{padding:.2rem 0}
  .brand{font-size:12pt}
  main{padding:.3rem 0 0}
  h1{font-size:16pt;margin:0 0 .15rem}
  h2{font-size:10.5pt;margin:0 0 .15rem}
  .pagehead{padding-bottom:.25rem}
  .whatis{margin:.2rem 0 0;padding:0 0 0 .5rem}
  .whatis .lbl{margin:0}
  #print-head{font-family:var(--mono);font-size:7pt;color:var(--graphite);margin:.2rem 0 0;max-width:none}
  .sim{display:block;margin-top:.2rem}
  .panels{display:grid;grid-template-columns:1fr 1fr;grid-template-areas:"m d" "m t" "s s";gap:0 1.1rem}
  #p-margin{grid-area:m} #p-detect{grid-area:d} #p-tier{grid-area:t} #p-score{grid-area:s}
  .panel{padding:.3rem 0 .2rem;break-inside:avoid}
  .panel+.panel{margin-top:0}
  .readout{margin:.15rem 0 .2rem;padding:0 0 .15rem}
  .readout p{margin-bottom:.1rem}
  .big{font-size:16pt;margin:0 0 .15rem!important}
  .carry,p{font-size:8pt;max-width:none;margin-bottom:.15rem}
  .lbl{font-size:6.8pt;margin:0 0 .1rem}
  .chart{margin:.15rem 0 0;padding:.2rem 0 0}
  .legend{font-size:7pt;margin:0 0 .15rem}
  .withheld{padding:.15rem .4rem;margin:.15rem 0}
  .withheld p{margin:0}
  .cmp{font-size:7pt;margin:0 0 .2rem}
  table.data th,table.data td{padding:.05rem .35rem .05rem 0;font-size:7pt!important}
  .score{columns:2;column-gap:1.1rem}
  .score li{padding:.2rem 0;break-inside:avoid}
  .score .say{font-size:7.8pt;line-height:1.25}
  .score .say b{font-size:7.6pt}
  .score .src{font-size:6.3pt;margin-top:.05rem}
  .colophon{padding:.2rem 0 0;font-size:7pt}
  .colophon p{margin:0}
}