/* Shared stylesheet for the win-rate teaching workspace.
   Tufte-inspired: serif body, generous margins, restrained palette, prints cleanly.
   Uses system fonts only (works offline). Linked by every lesson and reference doc. */

:root {
  --ink: #1a1a1a;
  --paper: #fdfcf9;
  --muted: #6b6862;
  --rule: #d9d4c8;
  --accent: #7a1f2b;      /* deep crimson — claims / key terms */
  --accent-soft: #f3e7e3;
  --code-bg: #f4f2ec;
  --good: #1f6b3a;
  --bad: #8a2417;
  --maxwidth: 46rem;
}

html { font-size: 18px; }

body {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Charter", Georgia, serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  margin: 0;
  padding: 3.5rem 1.5rem 6rem;
}

main, header, footer { max-width: var(--maxwidth); margin: 0 auto; }

/* ---- Masthead ---- */
.eyebrow {
  font-variant: small-caps;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 0.3rem;
}
h1 { font-size: 2rem; line-height: 1.15; margin: 0 0 0.4rem; font-weight: 600; }
h1 .sub { display: block; font-size: 1.05rem; font-weight: 400; color: var(--muted); font-style: italic; margin-top: 0.3rem; }
h2 { font-size: 1.3rem; margin: 2.4rem 0 0.6rem; font-weight: 600; border-bottom: 1px solid var(--rule); padding-bottom: 0.25rem; }
h3 { font-size: 1.05rem; margin: 1.6rem 0 0.4rem; font-weight: 600; }

p { margin: 0.7rem 0; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
em { font-style: italic; }
strong { font-weight: 600; }
.term { color: var(--accent); font-weight: 600; }

/* ---- Lead / mission tie-in ---- */
.lead { font-size: 1.08rem; }
.mission {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 0.7rem 1rem;
  margin: 1.2rem 0 1.6rem;
  font-size: 0.95rem;
}
.mission b { font-variant: small-caps; letter-spacing: 0.04em; }

/* ---- Code & math-ish ---- */
code, .mono {
  font-family: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 0.86em;
  background: var(--code-bg);
  padding: 0.08em 0.35em;
  border-radius: 3px;
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 5px;
  padding: 0.9rem 1.1rem;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.45;
}
pre code { background: none; padding: 0; }
.formula {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 5px;
  padding: 0.6rem 0.9rem;
  margin: 0.8rem 0;
  text-align: center;
  font-size: 0.95rem;
  overflow-x: auto;
}
/* MathJax: tame display-math margins inside boxed formulas; keep inline math
   from forcing line-height jumps. */
.formula mjx-container[display="true"] { margin: 0 !important; }
mjx-container { overflow-x: auto; overflow-y: hidden; max-width: 100%; }

/* ---- The spine diagram ---- */
.spine {
  display: flex; flex-wrap: wrap; align-items: stretch; gap: 0;
  margin: 1.2rem 0; font-size: 0.8rem;
}
.spine .node {
  background: #fff; border: 1px solid var(--rule); border-radius: 5px;
  padding: 0.45rem 0.6rem; flex: 1 1 0; min-width: 5.5rem; text-align: center;
  display: flex; flex-direction: column; justify-content: center;
}
.spine .node b { display: block; font-family: "SF Mono", Menlo, monospace; font-size: 0.78rem; color: var(--accent); }
.spine .node span { color: var(--muted); font-size: 0.72rem; }
.spine .arrow { align-self: center; color: var(--muted); padding: 0 0.25rem; font-size: 1rem; }

/* ---- Contribution cards / crosswalk ---- */
.cards { display: grid; gap: 0.9rem; margin: 1rem 0; }
.card {
  border: 1px solid var(--rule); border-left: 3px solid var(--accent);
  border-radius: 5px; padding: 0.8rem 1rem; background: #fff;
}
.card .tag { font-variant: small-caps; letter-spacing: 0.05em; color: var(--accent); font-size: 0.8rem; font-weight: 600; }
.card .claim { font-size: 1rem; margin: 0.2rem 0 0.5rem; }
.card .map { font-size: 0.8rem; color: var(--muted); }
.card .map code { font-size: 0.92em; }
.card .num { font-size: 0.82rem; margin-top: 0.45rem; padding-top: 0.45rem; border-top: 1px dashed var(--rule); }
.card .num b { color: var(--accent); }

table { border-collapse: collapse; width: 100%; font-size: 0.85rem; margin: 1rem 0; }
th, td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-variant: small-caps; letter-spacing: 0.04em; color: var(--muted); font-weight: 600; }
td code { font-size: 0.92em; }

/* ---- Glossary ---- */
.gloss dt { font-weight: 600; color: var(--accent); margin-top: 1rem; }
.gloss dd { margin: 0.2rem 0 0; }
.gloss dd .sym { font-family: "SF Mono", Menlo, monospace; color: var(--muted); font-size: 0.85em; }

/* ---- Callouts ---- */
.note, .watch {
  border-radius: 5px; padding: 0.7rem 1rem; margin: 1rem 0; font-size: 0.92rem;
}
.note { background: #eef3ef; border-left: 3px solid var(--good); }
.watch { background: #fbf0ec; border-left: 3px solid var(--bad); }
.note b, .watch b { font-variant: small-caps; letter-spacing: 0.04em; }

/* ---- Quiz widget (behavior in quiz.js) ---- */
.quiz { border: 1px solid var(--rule); border-radius: 6px; padding: 1rem 1.1rem; margin: 1.3rem 0; background: #fff; }
.quiz > .qhead { font-variant: small-caps; letter-spacing: 0.05em; color: var(--accent); font-weight: 600; font-size: 0.85rem; margin-bottom: 0.6rem; }
.quiz .q { margin: 1rem 0; }
.quiz .q > p { margin: 0 0 0.5rem; font-weight: 600; }
.quiz .opt {
  display: block; width: 100%; text-align: left; cursor: pointer;
  border: 1px solid var(--rule); border-radius: 4px; background: var(--paper);
  padding: 0.45rem 0.7rem; margin: 0.35rem 0; font: inherit; font-size: 0.9rem; color: var(--ink);
  transition: background 0.12s, border-color 0.12s;
}
.quiz .opt:hover:not(:disabled) { background: var(--code-bg); }
.quiz .opt.correct { border-color: var(--good); background: #e9f3ec; }
.quiz .opt.wrong { border-color: var(--bad); background: #f7e9e6; }
.quiz .opt:disabled { cursor: default; }
.quiz .why {
  display: none; margin-top: 0.5rem; padding: 0.55rem 0.75rem; font-size: 0.88rem;
  border-radius: 4px; background: var(--code-bg); border-left: 3px solid var(--muted);
}
.quiz .why.show { display: block; }
.quiz .why b { font-variant: small-caps; }

/* ---- Footer / next steps ---- */
footer { margin-top: 3rem; border-top: 1px solid var(--rule); padding-top: 1.2rem; font-size: 0.9rem; }
.ask { background: var(--accent-soft); border-radius: 5px; padding: 0.7rem 1rem; margin: 1rem 0; font-size: 0.92rem; }
.nav { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.5rem; font-size: 0.85rem; }
.nav a { display: inline-block; }
.src { font-size: 0.9rem; }
.src .pill { font-variant: small-caps; letter-spacing: 0.05em; background: var(--accent); color: #fff; padding: 0.1rem 0.5rem; border-radius: 3px; font-size: 0.72rem; margin-right: 0.4rem; }

/* ---- Print ---- */
@media print {
  body { background: #fff; padding: 0; font-size: 11pt; }
  .quiz .opt:hover { background: var(--paper); }
  .ask, .nav { break-inside: avoid; }
  a { color: var(--ink); text-decoration: none; }
}