:root{
  --paper:#e8e0d1;--paper-deep:#ddd2bf;--ink:#1f1d18;--muted:#6e665a;
  --rule:rgba(31,29,24,.25);--strong:rgba(31,29,24,.58);--accent:#7f5137;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{background:var(--paper);-webkit-text-size-adjust:100%}
body{margin:0;min-width:18rem;color:var(--ink);background:var(--paper);font:1rem/1.45 var(--serif)}
a{color:inherit;text-underline-offset:.22em}
button,a:focus-visible,summary:focus-visible{outline-color:var(--accent);outline-offset:3px}
.topbar{min-height:3rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.55rem clamp(.8rem,3vw,2rem);border-bottom:1px solid var(--strong);font:600 .68rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.topbar a{text-decoration:none}.topbar span{color:var(--muted)}
main{width:min(70rem,calc(100% - 1.2rem));margin:0 auto;padding:clamp(1.4rem,5vw,4rem) 0 3rem}
.approach{max-width:58rem;margin-bottom:clamp(1.6rem,4vw,3rem)}
.kicker,.panel-kicker,.folio,.compact>span{margin:0 0 .4rem;color:var(--muted);font:600 .66rem/1.2 var(--mono);letter-spacing:.09em;text-transform:uppercase}
h1{margin:.12rem 0 .8rem;font-weight:400;font-size:clamp(3rem,8vw,7.5rem);line-height:.84;letter-spacing:-.055em}
.lead{max-width:47rem;margin:0;color:var(--muted);font-size:clamp(1rem,2vw,1.28rem)}
.answer{border:1px solid var(--strong);background:rgba(255,255,255,.1)}
.answer-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1rem;align-items:start;padding:.85rem;border-bottom:1px solid var(--strong)}
.answer-head h2,.panel h2,.lower-return h2{margin:.15rem 0 0;font-weight:400;line-height:1.02}
.state-mark{min-width:8rem;padding-left:.8rem;border-left:1px solid var(--rule);font-family:var(--mono);text-transform:uppercase}
.state-mark span{display:block;color:var(--muted);font-size:.58rem;letter-spacing:.08em}
.state-mark strong{display:block;margin-top:.18rem;font-size:.68rem;letter-spacing:.04em}
.compact{padding:clamp(1.1rem,4vw,2.6rem);border-bottom:1px solid var(--rule)}
.compact blockquote{margin:0;font-size:clamp(2rem,6vw,5rem);line-height:.92;letter-spacing:-.04em}
.layer{display:grid;grid-template-columns:10rem minmax(0,1fr);border-bottom:1px solid var(--rule)}
.layer-mark{padding:.85rem;border-right:1px solid var(--rule);font:600 .63rem/1.25 var(--mono);letter-spacing:.07em;text-transform:uppercase}
.layer-mark span{display:block;margin-bottom:.24rem;color:var(--muted);font-size:.55rem}
.layer-body{padding:.85rem}
.layer-body h3{margin:0 0 .45rem;font-weight:400;font-size:1.45rem;line-height:1}
.layer-body p{margin:.3rem 0}.layer-body blockquote{margin:.6rem 0 0;padding-left:.8rem;border-left:2px solid var(--accent);color:var(--muted)}
.layer-body ul{margin:.5rem 0 0;padding-left:1.15rem}.layer-body li{margin:.22rem 0}
.controls{display:flex;flex-wrap:wrap;gap:.45rem;padding:.8rem;border-top:1px solid var(--strong)}
button{min-height:2.65rem;border:1px solid var(--strong);background:transparent;color:var(--ink);padding:.62rem .78rem;font:600 .62rem/1.1 var(--mono);letter-spacing:.055em;text-transform:uppercase;cursor:pointer}
button.primary{background:var(--ink);color:var(--paper)}button:disabled{opacity:.38;cursor:not-allowed}
.control-note{margin:0;padding:0 .85rem .9rem;color:var(--muted);font-size:.9rem}
.panel,.lower-return,.source-return{margin-top:1rem;border:1px solid var(--strong);padding:clamp(.9rem,3vw,1.5rem)}
.panel ul{margin:.8rem 0;padding-left:1.15rem}.panel li{margin:.3rem 0}
.panel p,.lower-return p{max-width:52rem}.refusal{background:rgba(127,81,55,.055)}
.lower-return a{display:inline-block;margin-top:.25rem;font:600 .7rem/1.2 var(--mono);letter-spacing:.055em;text-transform:uppercase}
.source-return{padding:0}.source-return summary{cursor:pointer;padding:.85rem;font:600 .66rem/1 var(--mono);letter-spacing:.07em;text-transform:uppercase}
.source-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--rule)}
.source-grid>div{padding:.85rem}.source-grid>div+div{border-left:1px solid var(--rule)}
.source-grid span,.source-grid strong,.source-grid em{display:block}
.source-grid span{color:var(--muted);font:600 .58rem/1.2 var(--mono);letter-spacing:.07em;text-transform:uppercase}
.source-grid strong{margin:.35rem 0;font-weight:400}.source-grid em{color:var(--muted);font-size:.82rem}
.error{border:1px solid var(--accent);padding:.8rem}
footer{display:flex;justify-content:space-between;gap:1rem;padding:.8rem clamp(.8rem,3vw,2rem);border-top:1px solid var(--strong);color:var(--muted);font:600 .58rem/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase}
@media(max-width:42rem){
  main{width:calc(100% - .7rem);padding-top:1.6rem}
  .topbar,.answer-head,footer{align-items:flex-start}
  .topbar span{max-width:10rem;text-align:right}
  .answer-head{grid-template-columns:1fr}.state-mark{padding:.6rem 0 0;border-left:0;border-top:1px solid var(--rule)}
  .layer{grid-template-columns:1fr}.layer-mark{border-right:0;border-bottom:1px solid var(--rule)}
  .controls{display:grid}.controls button{width:100%}
  .source-grid{grid-template-columns:1fr}.source-grid>div+div{border-left:0;border-top:1px solid var(--rule)}
  footer{flex-direction:column}
}