:root{
  --paper:#F5EFDE;
  --paper-deep:#ECE3CB;
  --paper-shade:#E2D6B8;
  --ink:#27211A;
  --ink-soft:#5C5240;
  --rubric:#9E2418;
  --rubric-soft:#B8463A;
  --machine:#1E4E58;
  --machine-soft:#3E707A;
  --gold:#8A6D2F;
  --rule:#B9AA85;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'EB Garamond',Georgia,serif;
  font-size:19px;
  line-height:1.55;
  background-image:
    repeating-linear-gradient(0deg, rgba(120,100,60,.045) 0px, rgba(120,100,60,.045) 1px, transparent 1px, transparent 3px),
    radial-gradient(ellipse at 50% -10%, rgba(140,110,60,.10), transparent 60%);
}
.page{max-width:980px;margin:0 auto;padding:0 28px 120px}
em{font-style:italic}
strong{font-weight:600}

/* ---------- Title page ---------- */
.titlepage{text-align:center;padding:64px 12px 36px;border-bottom:none}
.tp-rule{display:flex;align-items:center;gap:14px;justify-content:center;color:var(--rubric);margin:14px 0}
.tp-rule::before,.tp-rule::after{content:"";height:1px;background:var(--rule);flex:1;max-width:220px}
.tp-orn{font-family:'IM Fell English',serif;font-size:20px;letter-spacing:.35em;color:var(--rubric)}
.eyebrow{font-family:'IM Fell English SC',serif;font-size:17px;letter-spacing:.32em;color:var(--ink-soft)}
h1.tp-title{
  font-family:'IM Fell English SC',serif;font-weight:400;
  font-size:clamp(40px,7vw,72px);line-height:1.04;color:var(--rubric);
  margin:18px auto 6px;max-width:14ch;text-wrap:balance;
}
.tp-sub{
  font-family:'IM Fell English',serif;font-style:italic;
  font-size:clamp(19px,2.6vw,24px);color:var(--ink);max-width:46ch;margin:10px auto 0;text-wrap:balance;
}
.tp-imprint{margin-top:30px;font-family:'IM Fell English',serif;font-size:16px;color:var(--ink-soft);letter-spacing:.08em}
.tp-imprint .red{color:var(--rubric)}
.tp-note{
  margin:34px auto 0;max-width:62ch;font-size:17px;color:var(--ink-soft);
  border:1px solid var(--rule);padding:12px 18px;background:var(--paper-deep);
}
.tp-note .mono{font-family:'IBM Plex Mono',monospace;font-size:14px;color:var(--machine)}

/* ---------- Stepper ---------- */
.stepper{
  position:sticky;top:0;z-index:50;display:flex;justify-content:center;gap:0;
  background:var(--paper);border-top:1px solid var(--rule);border-bottom:2px solid var(--ink);
  margin-top:34px;flex-wrap:wrap;
}
.step-btn{
  appearance:none;background:none;border:none;cursor:pointer;
  font-family:'IM Fell English SC',serif;font-size:15px;letter-spacing:.14em;
  padding:13px 18px 11px;color:var(--ink-soft);border-bottom:3px solid transparent;margin-bottom:-2px;
}
.step-btn .num{color:var(--rubric);margin-right:7px;font-family:'IM Fell English',serif}
.step-btn:hover{color:var(--ink)}
.step-btn:focus-visible{outline:2px solid var(--machine);outline-offset:-2px}
.step-btn.active{color:var(--ink);border-bottom-color:var(--rubric)}

/* ---------- Stage scaffolding ---------- */
.stage{display:none;padding-top:46px;animation:fadein .5s ease}
.stage.active{display:block}
@keyframes fadein{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.stage-head{text-align:center;margin-bottom:34px}
.stage-kicker{font-family:'IM Fell English SC',serif;letter-spacing:.3em;font-size:15px;color:var(--rubric)}
h2.stage-title{font-family:'IM Fell English',serif;font-weight:400;font-size:clamp(30px,4.4vw,42px);margin-top:6px}
.stage-lede{max-width:64ch;margin:14px auto 0;font-size:19px;color:var(--ink)}
.smallcaps{font-variant:small-caps;letter-spacing:.05em}

.panel{border:1px solid var(--rule);background:rgba(255,252,243,.55);padding:26px 28px;margin:22px 0;position:relative}
.panel-label{
  position:absolute;top:-11px;left:18px;background:var(--paper);padding:0 10px;
  font-family:'IM Fell English SC',serif;font-size:14px;letter-spacing:.22em;color:var(--ink-soft)
}
.panel.machine{border-color:var(--machine-soft);background:rgba(30,78,88,.045)}
.panel.machine .panel-label{color:var(--machine)}

.btn{
  appearance:none;cursor:pointer;font-family:'IM Fell English SC',serif;font-size:16px;letter-spacing:.14em;
  padding:10px 22px;border:1.5px solid var(--ink);background:var(--paper);color:var(--ink);
  transition:background .15s ease, color .15s ease;
}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn:focus-visible{outline:2px solid var(--machine);outline-offset:2px}
.btn.rubric{border-color:var(--rubric);color:var(--rubric)}
.btn.rubric:hover{background:var(--rubric);color:var(--paper)}
.btn.machine{border-color:var(--machine);color:var(--machine);font-family:'IBM Plex Mono',monospace;font-size:13.5px;letter-spacing:.08em}
.btn.machine:hover{background:var(--machine);color:#F2EEDF}
.btn:disabled{opacity:.35;cursor:not-allowed}
.btn:disabled:hover{background:var(--paper);color:var(--ink)}
.btnrow{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:18px}

.machine-voice{font-family:'IBM Plex Mono',monospace;font-size:14.5px;line-height:1.62;color:var(--machine)}
.machine-tag{
  display:inline-block;font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.1em;
  border:1px solid var(--machine-soft);color:var(--machine);padding:2px 8px;margin-bottom:10px;text-transform:uppercase;
}
.cite-chip{
  display:inline-block;font-family:'IM Fell English SC',serif;font-size:13px;letter-spacing:.12em;
  color:var(--rubric);border:1px solid var(--rubric-soft);padding:2px 9px;margin:2px 4px 2px 0;background:rgba(158,36,24,.05)
}

/* ---------- Pipeline diagram ---------- */
.pipewrap{overflow-x:auto;padding:8px 0}
.pipe-svg{width:100%;min-width:640px;height:auto;display:block}

/* ---------- Stage II: constitution cards ---------- */
.const-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin-top:26px}
.pcard{
  border:1px solid var(--rule);background:rgba(255,252,243,.6);padding:20px 20px 16px;cursor:pointer;
  transition:border-color .15s ease, box-shadow .15s ease;position:relative;text-align:left;font:inherit;color:inherit
}
.pcard:hover{border-color:var(--rubric-soft)}
.pcard:focus-visible{outline:2px solid var(--machine);outline-offset:2px}
.pcard .pc-chap{font-family:'IM Fell English SC',serif;font-size:13.5px;letter-spacing:.18em;color:var(--rubric)}
.pcard .pc-title{font-family:'IM Fell English',serif;font-size:21px;margin:6px 0 8px;line-height:1.2}
.pcard .pc-body{font-size:16.5px;color:var(--ink-soft)}
.pcard .pc-instr{display:none;margin-top:12px;border-top:1px dashed var(--rule);padding-top:10px;font-size:16px}
.pcard.open .pc-instr{display:block}
.pcard .pc-instr .lead-in{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.1em;color:var(--machine);text-transform:uppercase;display:block;margin-bottom:5px}
.pc-hint{font-size:14px;color:var(--ink-soft);font-style:italic;margin-top:10px}

/* ---------- Stage III ---------- */
.prompt-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin:10px 0 6px}
.prompt-card{
  text-align:left;font:inherit;color:inherit;cursor:pointer;border:1.5px solid var(--rule);
  background:rgba(255,252,243,.6);padding:18px;transition:border-color .15s ease
}
.prompt-card:hover{border-color:var(--ink)}
.prompt-card:focus-visible{outline:2px solid var(--machine);outline-offset:2px}
.prompt-card.selected{border-color:var(--rubric);box-shadow:0 0 0 1px var(--rubric)}
.prompt-card .pq{font-size:17.5px}
.prompt-card .ptag{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--machine);letter-spacing:.1em;text-transform:uppercase;display:block;margin-bottom:8px}
.prompt-card .done-mark{color:var(--rubric);font-family:'IM Fell English',serif;font-size:14px;display:none;margin-top:8px}
.prompt-card.done .done-mark{display:block}

.proof{position:relative;background:rgba(255,252,243,.75);border:1px solid var(--rule);padding:26px 30px;margin-top:18px}
.proof .ph{font-family:'IM Fell English SC',serif;font-size:13.5px;letter-spacing:.2em;color:var(--ink-soft);margin-bottom:12px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.proof .ph .mn{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--machine);letter-spacing:.08em}
.proof-body{font-size:18.5px}
del{color:var(--rubric);text-decoration:line-through;text-decoration-thickness:1.6px;text-decoration-color:var(--rubric)}
ins{color:var(--rubric);text-decoration:none;border-bottom:1.5px solid var(--rubric)}
sup.gl{color:var(--rubric);font-family:'IM Fell English',serif;font-size:.7em;margin-left:1px}
.glosses{margin-top:18px;border-top:1px dashed var(--rule);padding-top:12px}
.glosses .g{font-size:15.5px;color:var(--rubric);font-style:italic;margin-bottom:6px}
.glosses .g .gm{font-style:normal;font-family:'IM Fell English',serif;margin-right:6px}
.hidden{display:none !important}

.corpus-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;border:1px solid var(--rule);background:var(--paper-deep);padding:14px 18px;margin-top:26px}
.corpus-count{font-family:'IBM Plex Mono',monospace;font-size:14px;color:var(--machine)}
.tally{font-family:'IM Fell English',serif;color:var(--rubric);letter-spacing:.2em;font-size:20px;min-width:70px}

.trainbox{margin-top:14px}
.trainlog{font-family:'IBM Plex Mono',monospace;font-size:13px;color:var(--machine);min-height:24px;margin-top:10px;white-space:pre-wrap}
.bar{height:10px;border:1px solid var(--machine-soft);background:rgba(30,78,88,.06);margin-top:10px;position:relative;overflow:hidden}
.bar .fill{position:absolute;inset:0;width:0%;background:var(--machine);transition:width .35s ease}

/* ---------- Stage IV ---------- */
.duel{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:16px}
@media (max-width:720px){.duel{grid-template-columns:1fr}}
.resp{
  border:1.5px solid var(--rule);background:rgba(255,252,243,.7);padding:20px;cursor:pointer;text-align:left;font:inherit;color:inherit;
  transition:border-color .15s ease;position:relative
}
.resp:hover{border-color:var(--ink)}
.resp:focus-visible{outline:2px solid var(--machine);outline-offset:2px}
.resp .rl{font-family:'IM Fell English SC',serif;letter-spacing:.2em;color:var(--ink-soft);font-size:14px;margin-bottom:8px}
.resp .rt{font-size:17px}
.resp.voted{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold)}
.resp.pm-pick{border-color:var(--rubric);box-shadow:0 0 0 1.5px var(--rubric)}
.resp .badge{position:absolute;top:-12px;right:12px;background:var(--paper);padding:0 8px;font-family:'IM Fell English SC',serif;font-size:12.5px;letter-spacing:.14em;display:none}
.resp.voted .badge.you{display:inline;color:var(--gold)}
.resp.pm-pick .badge.pm{display:inline;color:var(--rubric)}
.verdict{margin-top:16px}
.duel-q{font-size:19px;font-style:italic;margin-top:8px}
.round-ind{font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.1em;color:var(--machine);text-transform:uppercase}

.rl-chart-wrap{margin-top:14px}
.rl-snapshots{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:18px}
.snap{border:1px solid var(--rule);padding:16px;background:rgba(255,252,243,.6);opacity:.25;transition:opacity .4s ease}
.snap.lit{opacity:1}
.snap .st{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--machine);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}
.snap .sx{font-size:16px}
.snap .sr{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--rubric);margin-top:10px}

/* ---------- Stage V ---------- */
.dispt{max-width:70ch;margin:0 auto}
.dispt h3{font-family:'IM Fell English',serif;font-weight:400;font-size:26px;margin:34px 0 10px;color:var(--rubric)}
.dispt p{margin-bottom:14px}
.dispt ol{margin:8px 0 18px 26px}
.dispt li{margin-bottom:12px}
.quoteblock{
  border-left:3px solid var(--rubric);padding:6px 0 6px 20px;margin:18px 0;font-style:italic;font-size:19px;color:var(--ink)
}
.quoteblock .attr{display:block;font-style:normal;font-family:'IM Fell English SC',serif;font-size:14px;letter-spacing:.14em;color:var(--ink-soft);margin-top:6px}

.colophon{text-align:center;margin-top:90px;color:var(--ink-soft);font-size:15px}
.colophon .orn{color:var(--rubric);font-size:22px;font-family:'IM Fell English',serif;letter-spacing:.4em}
.footnote{font-size:15px;color:var(--ink-soft);margin-top:14px;font-style:italic}
.nav-next{display:flex;justify-content:flex-end;margin-top:36px}

/* ---------- Vestry (provider & key) ---------- */
.vestry-grid{display:grid;grid-template-columns:1.2fr 1.4fr 1.4fr;gap:14px;margin-top:12px}
@media (max-width:760px){.vestry-grid{grid-template-columns:1fr}}
.vestry-grid label{display:flex;flex-direction:column;gap:6px;font-family:'IM Fell English SC',serif;font-size:13.5px;letter-spacing:.14em;color:var(--ink-soft)}
.vestry-grid select,.vestry-grid input{
  font-family:'IBM Plex Mono',monospace;font-size:13.5px;color:var(--ink);
  padding:9px 11px;border:1.5px solid var(--rule);background:rgba(255,252,243,.85);width:100%
}
.vestry-grid select:focus-visible,.vestry-grid input:focus-visible{outline:2px solid var(--machine);outline-offset:1px}
.chip-btn{
  appearance:none;cursor:pointer;font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.04em;
  border:1px solid var(--machine-soft);color:var(--machine);background:rgba(30,78,88,.05);padding:4px 10px
}
.chip-btn:hover{background:var(--machine);color:#F2EEDF}
.chip-btn:focus-visible{outline:2px solid var(--machine);outline-offset:2px}
.keynote-warn{font-size:15px;color:var(--ink-soft);font-style:italic;margin-top:10px}

/* ---------- Extracted utility classes ---------- */
.pc-hint-centered{text-align:center;margin-top:22px}
.panel-flush{margin-bottom:0}
.rl-chart{width:100%;height:auto}
.btnrow-tight{margin-top:4px}
.live-input-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:14px}
.live-input{
  flex:1;
  min-width:240px;
  font-family:'EB Garamond',serif;
  font-size:17px;
  padding:10px 14px;
  border:1.5px solid var(--rule);
  background:rgba(255,252,243,.8);
  color:var(--ink);
}
.live-input:focus-visible{outline:2px solid var(--machine);outline-offset:2px}
.further-reading{font-size:16.5px}
.colophon-note{margin-top:10px}
.principle-title{font-family:'IM Fell English',serif;font-size:21px;margin:6px 0 6px}
.principle-gist{font-size:16.5px;color:var(--ink-soft)}
.principle-instr{margin-top:12px;border-top:1px dashed var(--rule);padding-top:10px}
.principle-instr-text{font-size:16.5px}