/* GEO course — shared lesson reading styles. Scoped under .agents-reading so the
   warm "reading room" never bleeds into the dark site chrome. */
:root{
  --paper: oklch(98% 0.008 85);
  --paper-2: oklch(96% 0.012 80);
  --paper-3: oklch(94% 0.014 80);
  --ink: oklch(24% 0.015 265);
  --ink-soft: oklch(43% 0.02 265);
  --ink-faint: oklch(46% 0.02 265);
  --accent: oklch(52% 0.14 35);
  --accent-deep: oklch(40% 0.12 35);
  --good: oklch(52% 0.13 150);
  --good-deep: oklch(40% 0.11 150);
  --bad: oklch(53% 0.16 25);
  --rule: oklch(88% 0.01 80);
  --hi: oklch(93% 0.06 90);
  --serif: "Fraunces","Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans: ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono: ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}

/* Header scroll-progress bar — dark chrome, intentionally NOT .agents-reading-scoped.
   The <div class="scroll-progress"> + its JS already live in the sticky <header>;
   this is the paint. Width tracks the --p custom property the script sets (0–1). */
.scroll-progress{position:absolute;left:0;bottom:0;height:2.5px;width:calc(var(--p,0) * 100%);background:linear-gradient(90deg,oklch(62% 0.2 290),oklch(74% 0.15 350));border-radius:0 3px 3px 0;opacity:0;transition:opacity .35s ease;pointer-events:none;z-index:60}
.scroll-progress.is-active{opacity:1}
@media (prefers-reduced-motion:reduce){.scroll-progress{transition:none}}

.agents-reading *{box-sizing:border-box}
.agents-reading{
  background:var(--paper);color:var(--ink);
  font-family:var(--sans);line-height:1.7;
  font-size:clamp(15.5px,0.95rem + 0.25vw,18px);
  padding:clamp(2.5rem,6vw,5rem) clamp(1.1rem,5vw,2.1rem);
}
.agents-reading .wrap{max-width:46rem;margin:0 auto}
.agents-reading a{color:var(--accent-deep)}
.agents-reading p a,.agents-reading li a{text-decoration:underline}
.agents-reading .kicker{font-family:var(--mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .9rem;display:flex;gap:.8rem;flex-wrap:wrap}
.agents-reading .kicker .dot{color:var(--ink-faint)}
.agents-reading h1{font-family:var(--serif);font-weight:600;font-size:clamp(2.1rem,1.2rem + 4vw,3.6rem);line-height:1.02;letter-spacing:-.015em;margin:0 0 1rem}
.agents-reading .standfirst{font-size:1.18rem;color:var(--ink-soft);line-height:1.55;margin:0 0 1.7rem;max-width:38rem}
.agents-reading .mission-tag{display:flex;gap:.8rem;align-items:flex-start;background:var(--paper-2);border:1px solid var(--rule);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;padding:1rem 1.2rem;font-size:.92rem;color:var(--ink-soft);margin:0 0 3rem}
.agents-reading .mission-tag b{color:var(--ink)}
.agents-reading hr.rule{border:none;border-top:1px solid var(--rule);margin:2.8rem 0}
.agents-reading h2{font-family:var(--serif);font-weight:600;font-size:1.7rem;letter-spacing:-.01em;margin:3.6rem 0 .7rem;line-height:1.15}
.agents-reading h2 .n{font-family:var(--mono);font-size:.85rem;color:var(--accent);font-weight:600;margin-right:.5rem;vertical-align:.18em}
.agents-reading h3{font-family:var(--sans);font-weight:700;font-size:1.05rem;margin:1.95rem 0 .4rem}
.agents-reading p{margin:.9rem 0}
.agents-reading strong{color:var(--ink)}
.agents-reading .lede{font-size:1.05rem}
.agents-reading .answerblock{position:relative;background:linear-gradient(180deg,var(--paper-2),var(--paper));border:1px solid var(--rule);border-radius:12px;padding:1.6rem 1.7rem 1.5rem;margin:1.8rem 0 2.6rem;box-shadow:0 1px 0 rgba(0,0,0,.02),0 12px 30px -22px rgba(0,0,0,.35)}
.agents-reading .answerblock .label{position:absolute;top:-.7rem;left:1.1rem;background:var(--accent);color:var(--paper);font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;text-transform:uppercase;padding:.22rem .55rem;border-radius:5px}
.agents-reading .answerblock p{margin:.2rem 0;font-size:1.06rem;line-height:1.55}
.agents-reading .pipeline{counter-reset:stage;margin:1.8rem 0 1.2rem;border-left:2px solid var(--rule);padding-left:0}
.agents-reading .stage{position:relative;padding:0 0 1.9rem 3.3rem;margin-left:.2rem}
.agents-reading .stage::before{counter-increment:stage;content:counter(stage);position:absolute;left:-1.05rem;top:-.1rem;width:2.1rem;height:2.1rem;display:grid;place-items:center;background:var(--ink);color:var(--paper);font-family:var(--mono);font-weight:600;font-size:.95rem;border-radius:50%;box-shadow:0 0 0 5px var(--paper)}
.agents-reading .stage:last-child{padding-bottom:.2rem}
.agents-reading .stage h3{margin:.1rem 0 .25rem;font-family:var(--serif);font-weight:600;font-size:1.22rem}
.agents-reading .stage .role{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-deep);display:block;margin-bottom:.35rem}
.agents-reading .stage p{margin:.4rem 0;font-size:.98rem}
.agents-reading .stage .takeaway{margin-top:.6rem;font-size:.9rem;color:var(--ink-soft);background:var(--paper-2);border-radius:7px;padding:.6rem .8rem;border:1px solid var(--rule)}
.agents-reading .stage .takeaway b{color:var(--accent-deep);font-family:var(--mono);font-size:.64rem;letter-spacing:.08em;text-transform:uppercase;display:block;margin-bottom:.15rem}
.agents-reading .bigidea{background:var(--ink);color:var(--paper);border-radius:14px;padding:1.85rem 1.9rem;margin:2.4rem 0}
.agents-reading .bigidea .eyebrow{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:oklch(78% 0.09 60);margin:0 0 .5rem}
.agents-reading .bigidea p{margin:.4rem 0;color:oklch(92% 0.01 80)}
.agents-reading .bigidea strong{color:var(--paper)}
.agents-reading .bigidea .huge{font-family:var(--serif);font-weight:500;font-size:clamp(1.7rem,1.1rem + 2.4vw,2.4rem);line-height:1.12;letter-spacing:-.015em;color:var(--paper);margin:.3rem 0 .6rem}
.agents-reading .bigidea .fine{font-size:.92rem;color:oklch(80% 0.01 80);margin-top:.7rem}
.agents-reading .compare{display:grid;grid-template-columns:1fr;gap:1rem;margin:1.6rem 0}
@media(min-width:40rem){.agents-reading .compare{grid-template-columns:1fr 1fr}}
.agents-reading .card{border-radius:11px;padding:1.1rem 1.2rem;border:1px solid var(--rule);background:var(--paper-2)}
.agents-reading .card.weak{border-top:3px solid var(--bad)}
.agents-reading .card.strong{border-top:3px solid var(--good)}
.agents-reading .card .tag{font-family:var(--mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;margin:0 0 .5rem;font-weight:600}
.agents-reading .card.weak .tag{color:var(--bad)}
.agents-reading .card.strong .tag{color:var(--good-deep)}
.agents-reading .card p{font-size:.95rem;margin:.35rem 0;line-height:1.5}
.agents-reading .card .note{font-size:.82rem;color:var(--ink-faint);margin-top:.7rem;border-top:1px dotted var(--rule);padding-top:.6rem}
.agents-reading mark{background:var(--hi);padding:.02em .2em;border-radius:3px;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.agents-reading .quiz{background:var(--paper-2);border:1px solid var(--rule);border-radius:14px;padding:1.6rem 1.6rem 1.4rem;margin:2rem 0}
.agents-reading .quiz h3{margin:0 0 .2rem;font-family:var(--serif);font-size:1.3rem;font-weight:600}
.agents-reading .quiz .intro{font-size:.92rem;color:var(--ink-soft);margin:0 0 1.1rem}
.agents-reading .q{margin:0 0 1.5rem;padding:0 0 1.3rem;border-bottom:1px dotted var(--rule)}
.agents-reading .q:last-of-type{border-bottom:none}
.agents-reading .q .qtext{font-weight:600;margin:0 0 .8rem;font-size:1rem}
.agents-reading .q .qtext .qn{font-family:var(--mono);color:var(--accent);font-size:.8rem;margin-right:.45rem}
.agents-reading .opt{display:block;width:100%;text-align:left;font-family:var(--sans);font-size:.95rem;color:var(--ink);background:var(--paper);border:1px solid var(--rule);border-radius:9px;padding:.7rem .9rem;margin:.45rem 0;cursor:pointer;transition:all .14s;line-height:1.45}
.agents-reading .opt:hover{border-color:var(--accent);transform:translateX(2px)}
.agents-reading .opt:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-color:var(--accent)}
.agents-reading .opt:disabled{cursor:default;transform:none}
.agents-reading .opt.correct{border-color:var(--good);background:oklch(95% 0.05 150);color:var(--good-deep);font-weight:600}
.agents-reading .opt.wrong{border-color:var(--bad);background:oklch(95% 0.05 25);color:var(--bad)}
.agents-reading .fb{font-size:.88rem;margin:.6rem 0 0;padding:.7rem .9rem;border-radius:8px;background:var(--paper-3);color:var(--ink-soft);display:none}
.agents-reading .fb.show{display:block}
.agents-reading .fb b{color:var(--ink)}
.agents-reading .score{font-family:var(--mono);font-size:.95rem;text-align:center;margin:1rem 0 0;color:var(--accent-deep);min-height:1.3em;font-weight:600}
.agents-reading .caveat{border:1px dashed var(--accent);border-radius:12px;padding:1.4rem 1.5rem;margin:2.4rem 0;background:linear-gradient(180deg,oklch(96% 0.03 60),var(--paper))}
.agents-reading .caveat .eyebrow{font-family:var(--mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .4rem}
.agents-reading .caveat p{font-size:.96rem;margin:.5rem 0}
.agents-reading .next{font-size:.96rem;color:var(--ink-soft);background:var(--paper-2);border:1px solid var(--rule);border-radius:10px;padding:1.2rem 1.4rem;margin:1.6rem 0}
.agents-reading .next b{color:var(--ink)}
.agents-reading .fignote{font-size:.85rem;color:var(--ink-faint)}
.agents-reading .boardnote{font-size:.88rem;color:var(--ink-faint);margin-top:.7rem}
.agents-reading .boardnote strong{color:var(--accent-deep)}
.agents-reading .warn{background:oklch(95% 0.045 25);border:1px solid var(--bad);border-radius:10px;padding:.95rem 1.15rem;font-size:.93rem;color:oklch(43% 0.15 25);margin-top:1.1rem}
.agents-reading sup.cite{font-family:var(--mono);font-size:.62rem;color:var(--accent-deep);font-weight:600}
.agents-reading sup.cite a{text-decoration:none;scroll-margin-top:6rem}
.agents-reading sup.cite a:target{background:var(--hi);border-radius:3px;padding:0 .15em}
.agents-reading .footnotes .backref{text-decoration:none;color:var(--accent-deep);font-family:var(--mono);margin-left:.4rem}
.agents-reading .footnotes .backref:hover{text-decoration:underline}
.agents-reading .footnotes{margin-top:3rem;padding-top:1.4rem;border-top:2px solid var(--ink);font-size:.82rem;color:var(--ink-soft)}
.agents-reading .footnotes h3{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 .8rem}
.agents-reading .footnotes ol{margin:0;padding-left:1.3rem}
.agents-reading .footnotes li{margin:.55rem 0;line-height:1.45;scroll-margin-top:5rem;border-radius:5px;transition:background .35s ease}
.agents-reading .footnotes li:target{background:var(--hi);box-shadow:0 0 0 .4rem var(--hi)}
.agents-reading .footnotes a{word-break:break-word}
.agents-reading .end{font-family:var(--mono);font-size:.7rem;color:var(--ink-faint);text-align:center;margin:2.4rem 0 0;letter-spacing:.08em}

/* ---- course shell additions ---- */
.agents-reading .lesson-progress{display:flex;align-items:center;gap:.8rem;font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 2rem}
.agents-reading .lesson-progress .track{display:flex;gap:.45rem;align-items:center}
/* Segments are jump links to each lesson; hover/focus magnifies (Apple-dock style) + glows. */
.agents-reading .lesson-progress .seg{display:block;width:1.9rem;height:.42rem;border-radius:3px;background:var(--rule);transition:transform .2s cubic-bezier(.16,1,.3,1),background .2s,box-shadow .2s;transform-origin:center}
.agents-reading .lesson-progress a.seg{cursor:pointer}
.agents-reading .lesson-progress a.seg:hover,.agents-reading .lesson-progress a.seg:focus-visible{transform:scale(1.45);background:var(--accent);box-shadow:0 0 12px -1px var(--accent);outline:none}
.agents-reading .lesson-progress .seg.on{background:var(--accent)}
.agents-reading .yget{background:var(--paper-2);border:1px solid var(--rule);border-radius:12px;padding:1.2rem 1.4rem;margin:0 0 2rem}
.agents-reading .yget .eyebrow{font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep);margin:0 0 .6rem}
.agents-reading .yget ul{margin:.2rem 0 0;padding-left:1.1rem}
.agents-reading .yget li{margin:.4rem 0;font-size:.95rem}
.agents-reading .video-frame{margin:1.8rem 0 2.6rem}
.agents-reading .video-frame .cap{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 .6rem}
.agents-reading .video-frame video{width:100%;aspect-ratio:16/9;height:auto;display:block;border-radius:12px;border:1px solid var(--rule);background:#000}
.agents-reading .lesson-nav{display:flex;justify-content:space-between;gap:1rem;margin:3rem 0 0;padding-top:1.6rem;border-top:1px solid var(--rule);font-size:.95rem}
.agents-reading .lesson-nav a{text-decoration:none;color:var(--accent-deep);font-weight:600}
.agents-reading .lesson-nav .disabled{color:var(--ink-faint);font-weight:400}

/* ---- responsive + accessibility polish ---- */
@media (max-width:40rem){
  /* keep the numbered pipeline markers (and their paper ring) off the screen edge */
  .agents-reading .pipeline{margin-left:1.1rem}
}
@media (max-width:34rem){
  /* prev/next shouldn't crowd into each other on narrow phones */
  .agents-reading .lesson-nav{flex-direction:column;align-items:stretch;gap:.6rem;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  .agents-reading *,.agents-reading *::before,.agents-reading *::after{transition:none !important;scroll-behavior:auto !important}
  .agents-reading .opt:hover{transform:none}
  .agents-reading .lesson-progress a.seg:hover,.agents-reading .lesson-progress a.seg:focus-visible{transform:none}
}

@media print{
  :root{--paper:#fff;--paper-2:#fafafa;--paper-3:#f4f4f4;--hi:#f0e9d8}
  .agents-reading{font-size:10.5pt;padding:0;color:#000}
  .agents-reading .bigidea{background:#fff;color:#000;border:2px solid #000}
  .agents-reading .bigidea p,.agents-reading .bigidea .huge,.agents-reading .bigidea strong,.agents-reading .bigidea .eyebrow{color:#000}
  .agents-reading .opt{display:none}
  .agents-reading .opt.correct{display:block;border:1px solid #000;background:#f0f0f0}
  .agents-reading .fb{display:block}
  .agents-reading a{color:#000}
  .agents-reading .stage::before{box-shadow:0 0 0 4px #fff}
  .agents-reading .video-frame,.agents-reading .lesson-progress,.agents-reading .lesson-nav{display:none}
}

/* ---- Concept diagrams (inline SVG figures) ---- */
.agents-reading .diagram{margin:1.8rem 0;padding:1.25rem 1.25rem 1rem;background:var(--paper-2);border:1px solid var(--rule);border-radius:14px}
.agents-reading .diagram svg{display:block;width:100%;max-width:520px;height:auto;margin:0 auto}
.agents-reading .diagram figcaption{font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--ink-soft);margin-top:.8rem;line-height:1.5;text-align:center}