/* GENERATED by tools/build-course.mjs — base styles sliced from the book. */

  :root{ --ink:#262626; --paper:#faf8f3; --teal:#2f6f6b; --teal-soft:#e7f0ef;
    --rule:#d8d2c6; --muted:#6b675f; --amber:#9a6a2f; --amber-soft:#f3ead9; }
  @page { margin: 22mm 20mm; }
  html{ font-size:11.5pt; }
  body{ font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
    color:var(--ink); background:var(--paper); line-height:1.5; margin:0;
    -webkit-print-color-adjust:exact; print-color-adjust:exact; }
  .wrap{ max-width:780px; margin:0 auto; padding:0 8px; }
  h1,h2,h3,h4,.brand{ font-family:"Avenir Next","Helvetica Neue",Arial,sans-serif; }

  .cover{ height:100vh; display:flex; flex-direction:column; justify-content:center; page-break-after:always; }
  .cover .kick{ color:var(--teal); letter-spacing:.22em; text-transform:uppercase; font-size:.8rem; font-weight:700; }
  .cover h1{ font-size:2.9rem; line-height:1.05; margin:.3em 0 .2em; }
  .cover .sub{ color:var(--muted); font-size:1.15rem; max-width:32em; }
  .cover .rule{ width:64px; height:4px; background:var(--teal); margin:1.2rem 0; }
  .cover .dojo{ margin-top:auto; color:var(--teal); font-weight:700; letter-spacing:.04em; }

  .toc{ page-break-after:always; }
  .toc h2{ color:var(--teal); }
  .toc ol{ list-style:none; padding:0; counter-reset:c; }
  .toc li{ counter-increment:c; padding:.3rem 0; border-bottom:1px dotted var(--rule); display:flex; }
  .toc li::before{ content:counter(c) "."; color:var(--teal); font-weight:700; width:2.2em; font-family:"Avenir Next",sans-serif; }

  .chap-head{ page-break-before:always; }
  .kicker{ color:var(--teal); letter-spacing:.2em; text-transform:uppercase; font-size:.74rem; font-weight:700; }
  h1.chap{ font-size:2rem; line-height:1.1; margin:.1em 0 .15em; border-bottom:3px solid var(--teal); padding-bottom:.25em; }
  .lede{ font-size:1.06rem; color:var(--muted); margin:.6em 0 1.1em; }
  h3{ font-size:1.14rem; color:var(--teal); margin:1.4em 0 .3em; }
  h4{ font-size:1rem; margin:1.05em 0 .2em; }
  p{ margin:.55em 0; }
  ul,ol{ margin:.5em 0; padding-left:1.3em; } li{ margin:.22em 0; }
  strong{ color:#1b1b1b; }
  em.term{ font-style:normal; font-weight:700; color:var(--teal); }
  code{ font-family:"SF Mono",Menlo,Consolas,monospace; font-size:.85em; background:#efece4; padding:.05em .35em; border-radius:3px; }
  pre{ background:#f4f1ea; border:1px solid var(--rule); border-radius:6px; padding:.7em .9em; margin:.5em 0 1.2em; overflow-x:auto; font-size:.72rem; line-height:1.5; }
  pre code{ background:none; padding:0; border-radius:0; font-size:inherit; color:#23241f; }
  .codecap{ font-family:"Avenir Next",sans-serif; font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--teal); font-weight:700; margin:1.3em 0 .1em; }
  table.data{ border-collapse:collapse; width:100%; margin:1em 0; font-size:.88rem; }
  table.data th, table.data td{ border:1px solid var(--rule); padding:.4em .6em; text-align:left; vertical-align:top; }
  table.data th{ background:var(--teal-soft); font-family:"Avenir Next",sans-serif; font-size:.8rem; }
  table.data td.num{ text-align:right; font-variant-numeric:tabular-nums; }
  .callout{ background:var(--teal-soft); border-left:4px solid var(--teal); padding:.7em 1em; margin:1.1em 0; border-radius:0 6px 6px 0; break-inside:avoid; }
  .callout .lbl{ font-family:"Avenir Next",sans-serif; font-weight:700; color:var(--teal); font-size:.74rem; letter-spacing:.12em; text-transform:uppercase; }
  .lab{ border:2px solid var(--teal); border-radius:10px; padding:.9em 1.1em; margin:1.5em 0; background:#fff; break-inside:avoid; }
  .lab .tag{ display:inline-block; background:var(--teal); color:#fff; font-family:"Avenir Next",sans-serif; font-weight:700;
    font-size:.72rem; letter-spacing:.12em; text-transform:uppercase; padding:.18em .7em; border-radius:20px; margin-bottom:.5em; }
  .free{ display:inline-block; background:var(--amber-soft); color:var(--amber); border:1px solid #e3d3b3; font-family:"Avenir Next",sans-serif;
    font-weight:700; font-size:.66rem; letter-spacing:.1em; text-transform:uppercase; padding:.12em .55em; border-radius:20px; margin-left:.4em; }
  .solution{ border:1.5px dashed var(--amber); border-radius:10px; padding:.9em 1.1em; margin:1.1em 0 1.6em; background:#fffdf8; }
  .solution .tag{ display:inline-block; color:var(--amber); font-family:"Avenir Next",sans-serif; font-weight:700;
    font-size:.72rem; letter-spacing:.12em; text-transform:uppercase; margin-bottom:.4em; }
  .case{ border:1px solid var(--rule); border-left:4px solid var(--amber); border-radius:8px; padding:.9em 1.1em;
    margin:1.5em 0; background:#fffdf8; break-inside:avoid; }
  .case .tag{ display:inline-block; color:var(--amber); font-family:"Avenir Next",sans-serif; font-weight:700;
    font-size:.72rem; letter-spacing:.12em; text-transform:uppercase; margin-bottom:.3em; }
  .case h3{ color:var(--ink); font-size:1.1rem; margin:.1em 0 .4em; }
  .case p{ margin:.5em 0; }
  .beat{ border-left:4px solid var(--teal); background:var(--teal-soft); border-radius:0 6px 6px 0;
    padding:.6em .95em; margin:1.4em 0; break-inside:avoid; }
  .beat .tag{ display:inline-block; color:var(--teal); font-family:"Avenir Next",sans-serif; font-weight:700;
    font-size:.68rem; letter-spacing:.12em; text-transform:uppercase; }
  .beat p{ margin:.3em 0 0; font-size:.96rem; }
  .quiz{ break-inside:avoid; border:1.5px solid var(--rule); border-radius:8px; padding:.8em 1.1em; margin:1.6em 0 .6em; background:#fff; }
  .quiz h4{ font-family:"Avenir Next",sans-serif; margin:.1em 0 .5em; color:var(--ink); }
  .quiz h4 span{ color:var(--teal); }
  .quiz > ol{ counter-reset:q; list-style:none; padding-left:0; }
  .quiz > ol > li{ counter-increment:q; margin:.7em 0; padding-left:2em; position:relative; }
  .quiz > ol > li::before{ content:"Q"counter(q); position:absolute; left:0; color:var(--teal); font-weight:700; font-family:"Avenir Next",sans-serif; font-size:.82rem; top:.1em; }
  .opts{ list-style:upper-alpha; padding-left:1.4em; margin:.3em 0; } .opts li{ margin:.12em 0; }
  .answers{ break-inside:avoid; font-size:.9rem; color:var(--muted); border-top:1px dashed var(--rule); margin-top:.7em; padding-top:.5em; }
  .answers .lbl{ font-family:"Avenir Next",sans-serif; font-weight:700; color:var(--teal); font-size:.74rem; letter-spacing:.1em; text-transform:uppercase; }
  .answers p{ margin:.3em 0; } .answers b{ color:var(--ink); }
  .foot{ text-align:center; color:var(--muted); font-size:.8rem; margin-top:2.4rem; }


/* ===== hosted-course reader chrome (appended after the book's print styles) ===== */
/* Overrides the book's print-tuned base for comfortable on-screen reading.    */

html{ font-size:17px; scroll-behavior:smooth; }
body{ background:var(--paper); }
a{ color:var(--teal); }
.hidden{ display:none !important; }
:root{ --paper-2:#f4f1ea; --teal-deep:#245a57; }

/* ---- top bar + thin progress ---- */
.c-top{ position:sticky; top:0; z-index:30; background:rgba(250,248,243,.92);
  backdrop-filter:blur(8px); border-bottom:1px solid var(--rule); }
.c-top .row{ max-width:900px; margin:0 auto; display:flex; align-items:center; gap:16px;
  height:56px; padding:0 20px; }
.c-top .brand{ font-family:"Avenir Next",sans-serif; font-weight:700; color:var(--ink);
  text-decoration:none; font-size:1rem; letter-spacing:.02em; }
.c-top .brand b{ color:var(--teal); }
.c-top .spacer{ flex:1; }
.c-top a.tl{ font-family:"Avenir Next",sans-serif; font-size:.9rem; font-weight:600;
  color:var(--muted); text-decoration:none; }
.c-top a.tl:hover{ color:var(--ink); }
.c-prog{ height:4px; background:var(--paper-2); }
.c-prog > i{ display:block; height:100%; width:0; background:var(--teal); transition:width .3s; }

/* ---- reading column ---- */
.course-body{ max-width:820px; padding:30px 20px 64px; }

/* ---- chapter footer nav ---- */
.c-nav{ display:flex; gap:12px; align-items:center; margin:2.8rem 0 0; padding-top:1.4rem;
  border-top:1px solid var(--rule); flex-wrap:wrap; }
.c-nav .btn{ font-family:"Avenir Next",sans-serif; font-weight:700; text-decoration:none;
  border-radius:9px; padding:.7em 1.2em; border:2px solid var(--teal); cursor:pointer; font-size:.92rem; }
.c-nav .btn.primary{ background:var(--teal); color:#fff; }
.c-nav .btn.primary:hover{ background:var(--teal-deep); border-color:var(--teal-deep); }
.c-nav .btn.ghost{ background:transparent; color:var(--teal); }
.c-nav .btn.ghost:hover{ background:var(--teal-soft); }
.c-nav .sp{ flex:1; }
.c-nav .done-tag{ color:var(--amber); font-family:"Avenir Next",sans-serif; font-weight:700;
  font-size:.78rem; letter-spacing:.08em; text-transform:uppercase; }

/* ===== course home ===== */
.home-hero{ max-width:900px; margin:0 auto; padding:44px 20px 6px; }
.home-hero .kick{ color:var(--teal); letter-spacing:.2em; text-transform:uppercase;
  font-size:.72rem; font-weight:700; font-family:"Avenir Next",sans-serif; }
.home-hero h1{ font-size:2.4rem; line-height:1.08; margin:.14em 0 .2em; }
.home-hero .sub{ color:var(--muted); font-size:1.1rem; max-width:54ch; }
.home-hero .rule{ width:60px; height:4px; background:var(--teal); margin:1rem 0 1.1rem; border-radius:2px; }

.pbar{ max-width:900px; margin:.4rem auto 0; padding:0 20px; }
.pbar .track{ height:8px; background:var(--paper-2); border-radius:6px; overflow:hidden; border:1px solid var(--rule); }
.pbar .track > i{ display:block; height:100%; background:var(--teal); width:0; transition:width .4s; }
.pbar .lbl{ font-family:"Avenir Next",sans-serif; font-size:.85rem; color:var(--muted); margin:.5em 0 0; }

/* ---- curriculum list ---- */
.curric{ max-width:900px; margin:1.4rem auto 0; padding:0 20px 30px; list-style:none; }
.crow{ display:flex; align-items:flex-start; gap:16px; padding:16px 0; border-bottom:1px solid var(--rule); }
.crow .n{ font-family:"Avenir Next",sans-serif; font-weight:700; color:var(--teal);
  min-width:2.4em; text-align:right; flex:0 0 auto; font-size:.82rem; padding-top:.25em; letter-spacing:.06em; }
.crow .meta{ flex:1; min-width:0; }
.crow .meta h3{ font-size:1.06rem; margin:0 0 .18em; line-height:1.25; }
.crow .meta h3 a{ text-decoration:none; color:var(--ink); }
.crow .meta h3 a:hover{ color:var(--teal); }
.crow .meta p{ margin:0; color:var(--muted); font-size:.93rem; line-height:1.4; }
.crow .chip{ font-family:"Avenir Next",sans-serif; font-size:.64rem; font-weight:700; letter-spacing:.1em;
  text-transform:uppercase; padding:.32em .7em; border-radius:20px; white-space:nowrap; flex:0 0 auto; margin-top:.2em; }
.chip.free{ background:var(--amber-soft); color:var(--amber); border:1px solid #e3d3b3; }
.chip.locked{ background:var(--paper-2); color:var(--muted); border:1px solid var(--rule); }
.chip.done{ background:var(--teal-soft); color:var(--teal-deep); }
.crow.is-locked .meta h3 a{ color:var(--muted); pointer-events:none; cursor:default; }

/* ---- unlock / buy panel ---- */
.unlock{ max-width:900px; margin:1rem auto 0; padding:0 20px; }
.unlock .card{ border:2px solid var(--teal); border-radius:14px; background:var(--teal-soft);
  padding:1.7em 1.5em; text-align:center; }
.unlock h2{ font-size:1.5rem; margin:.1em 0 .3em; }
.unlock p{ color:var(--muted); max-width:56ch; margin:.3em auto .9em; }
.unlock .price{ font-family:"Avenir Next",sans-serif; font-weight:700; font-size:1.75rem;
  color:var(--ink); margin:.2em 0 .7em; }
.unlock .price span{ font-size:.8rem; color:var(--muted); font-weight:600; }
.unlock .buy{ display:inline-block; background:var(--teal); color:#fff; text-decoration:none;
  font-family:"Avenir Next",sans-serif; font-weight:700; font-size:1.05rem; padding:.78em 2em; border-radius:9px; }
.unlock .buy:hover{ background:var(--teal-deep); }
.unlock .code{ margin-top:1.4em; padding-top:1.1em; border-top:1px dashed var(--rule); }
.unlock .code .q{ font-family:"Avenir Next",sans-serif; font-size:.9rem; color:var(--muted); }
.unlock .code form{ display:flex; gap:.5em; justify-content:center; flex-wrap:wrap; margin-top:.6em; }
.unlock .code input{ font-family:"Avenir Next",sans-serif; font-size:1rem; padding:.62em .9em;
  border:1px solid var(--rule); border-radius:8px; min-width:14em; text-align:center; letter-spacing:.06em; }
.unlock .code button{ background:var(--ink); color:#fff; border:0; border-radius:8px;
  font-family:"Avenir Next",sans-serif; font-weight:700; padding:.66em 1.3em; cursor:pointer; }
.unlock .code button:disabled{ opacity:.6; cursor:default; }
.unlock .code .msg{ min-height:1.2em; font-size:.85rem; margin-top:.55em; }
.unlock .code .msg.err{ color:#a33; } .unlock .code .msg.ok{ color:var(--teal-deep); font-weight:600; }

/* ===== edition hub (learn/index.html) ===== */
.hub{ max-width:960px; margin:0 auto; padding:52px 20px 20px; }
.hub .kick{ color:var(--teal); letter-spacing:.2em; text-transform:uppercase; font-size:.72rem;
  font-weight:700; font-family:"Avenir Next",sans-serif; }
.hub h1{ font-size:2.3rem; line-height:1.1; margin:.12em 0 .2em; }
.hub .sub{ color:var(--muted); font-size:1.1rem; max-width:56ch; }
.hub-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin:2rem auto 0;
  max-width:960px; padding:0 20px 50px; }
.ed-card{ background:#fff; border:1px solid var(--rule); border-radius:14px; padding:24px 22px 26px;
  display:flex; flex-direction:column; transition:transform .15s, box-shadow .15s; }
.ed-card:hover{ transform:translateY(-4px); box-shadow:0 18px 40px -20px rgba(38,38,38,.35); }
.ed-card .who{ color:var(--teal); font-family:"Avenir Next",sans-serif; font-weight:700;
  font-size:.68rem; letter-spacing:.14em; text-transform:uppercase; }
.ed-card h3{ font-size:1.22rem; margin:.3em 0 .35em; line-height:1.2; }
.ed-card p{ margin:0 0 1.1em; color:var(--muted); font-size:.95rem; flex:1; }
.ed-card .price{ font-family:"Avenir Next",sans-serif; font-weight:700; font-size:1.35rem;
  color:var(--ink); margin-bottom:.6em; }
.ed-card .price span{ font-size:.78rem; color:var(--muted); font-weight:600; }
.ed-card .go{ display:block; text-align:center; background:var(--teal); color:#fff; text-decoration:none;
  font-family:"Avenir Next",sans-serif; font-weight:700; padding:.7em 1em; border-radius:9px; }
.ed-card .go:hover{ background:var(--teal-deep); }
.ed-card.owned{ border-color:var(--teal); }
.ed-card .owned-tag{ display:inline-block; background:var(--teal-soft); color:var(--teal-deep);
  font-family:"Avenir Next",sans-serif; font-weight:700; font-size:.64rem; letter-spacing:.1em;
  text-transform:uppercase; padding:.3em .7em; border-radius:20px; margin-bottom:.5em; }
@media(max-width:760px){ .hub-grid{ grid-template-columns:1fr; max-width:420px; } }

.foot-home{ text-align:center; color:var(--muted); font-size:.82rem; padding:30px 20px 54px; }
.foot-home a{ color:var(--muted); }

/* ===== interactive test ===== */
.quiz-opts{ list-style:upper-alpha; }
.quiz-opts li{ margin:.2em 0; }
.quiz-opts label{ cursor:pointer; }
.quiz-opts input{ margin-right:.5em; }
.quiz-opts li.ok{ background:#e6f4ea; border-radius:5px; padding:.06em .35em; }
.quiz-opts li.bad{ background:#fbe9e9; border-radius:5px; padding:.06em .35em; }
.quiz-opts li.correct-ans{ font-weight:700; }
.q-review{ margin:.45em 0 .2em; font-family:"Avenir Next",sans-serif; font-size:.86rem; }
.q-review a{ color:var(--amber); font-weight:700; text-decoration:none; }
.q-review a:hover{ text-decoration:underline; }
.quiz-controls{ margin:1.1em 0 .5em; display:flex; align-items:center; gap:14px; flex-wrap:wrap; }
.quiz-controls button{ font-family:"Avenir Next",sans-serif; font-weight:700; background:var(--teal); color:#fff;
  border:0; border-radius:8px; padding:.55em 1.3em; cursor:pointer; font-size:.92rem; }
.quiz-controls button:hover{ background:var(--teal-deep); }
.q-score{ font-family:"Avenir Next",sans-serif; font-weight:700; color:var(--teal-deep); }
.q-note{ color:#a33; font-size:.85rem; font-family:"Avenir Next",sans-serif; }
.answers.hidden, .q-review.hidden{ display:none; }

/* ===== report card ===== */
.reportcard{ max-width:900px; margin:1.3rem auto 0; padding:0 20px; }
.reportcard .card{ border:1px solid var(--rule); background:#fff; border-radius:14px; padding:1.3em 1.4em; }
.reportcard h2{ font-size:1.2rem; margin:0 0 .3em; }
.reportcard .big{ font-family:"Avenir Next",sans-serif; color:var(--muted); margin:.2em 0 .6em; }
.reportcard .grade{ font-size:1.7rem; font-weight:700; color:var(--teal-deep); }
.reportcard ul{ list-style:none; padding:0; margin:.4em 0 0; }
.reportcard li{ display:flex; justify-content:space-between; gap:14px; padding:.34em 0;
  border-bottom:1px dotted var(--rule); font-size:.92rem; }
.reportcard li .s{ font-family:"Avenir Next",sans-serif; font-weight:700; color:var(--teal-deep); white-space:nowrap; }
.reportcard li .s.miss{ color:var(--muted); font-weight:600; }

/* curriculum per-chapter score */
.crow .score{ font-family:"Avenir Next",sans-serif; font-weight:700; font-size:.8rem; color:var(--teal-deep); }


/* multi-role hub */
.hub-role{ font-family:"Avenir Next",sans-serif; color:var(--teal); max-width:var(--maxw,1080px);
  margin:2.2rem auto .2rem; padding:0 1.1rem; font-size:1.15rem; }