@charset "UTF-8";
/* ==========================================================================
   Knowledge InSight
   --------------------------------------------------------------------------
   The palette is sampled from images/knowledge-insight-background.jpg: the
   chrome takes the blues of the painted planks, the reading surfaces take the
   warm paper of the book pages, and the item-type accents take the orange and
   yellow book spines plus the plum of the wordmark.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Tokens
   -------------------------------------------------------------------------- */

:root {
  color-scheme: light;

  /* Blues, sampled from the plank background */
  --blue-900: #163a5e;
  --blue-800: #1d4c79;
  --blue-700: #275f92;   /* deep plank  */
  --blue-600: #2f75b3;   /* mid plank — primary */
  --blue-500: #3d86c6;
  --blue-400: #5997d2;   /* lit plank   */
  --blue-300: #93bce5;
  --blue-200: #c6dbf1;
  --blue-100: #e4eefa;
  --blue-50:  #f2f7fd;

  /* Slates, sampled from the shadowed wood */
  --slate-900: #1f2837;
  --slate-800: #2b3749;
  --slate-700: #3b4a62;
  --slate-600: #4e6584;
  --slate-500: #6b809c;
  --slate-400: #93a5bb;
  --slate-300: #bcc9d8;
  --slate-200: #dde4ed;
  --slate-100: #eef2f7;

  /* Paper, sampled from the book pages. The page itself is white; the paper
     tones are now a secondary surface for navigation and quiet bands. */
  --paper:   #faf7f1;
  --paper-2: #f3eee4;
  --paper-3: #e9e1d2;
  --white:   #ffffff;

  /* Accents, sampled from the book spines and the wordmark */
  --amber:      #e2ae41;
  --amber-ink:  #8c6410;
  --rust:       #994310;
  --rust-ink:   #8a3c0e;
  --plum:       #8b2060;
  --plum-ink:   #7a1c55;
  --green-ink:  #1f6b4a;
  --green-bg:   #eef7f2;
  /* Teal bridges the blue and the warm paper; used for the vetted seal. */
  --teal:       #1d6b70;
  --teal-bg:    #e9f4f4;

  /* Semantic */
  --bg: var(--white);
  --surface: var(--white);
  --surface-alt: var(--paper);      /* outline, bands, quiet panels */
  --surface-sunk: var(--paper-2);
  --line-warm: var(--paper-3);
  --text: var(--slate-900);
  --text-soft: var(--slate-700);
  --muted: var(--slate-600);
  --line: var(--slate-200);
  --line-strong: var(--slate-300);
  --brand: var(--blue-600);
  --brand-dark: var(--blue-700);
  --brand-deep: var(--blue-900);
  --focus: var(--blue-500);

  /* Type */
  --font-sans: "Source Sans 3", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --fs-base: 1.0625rem;
  --lh-prose: 1.68;
  --measure: 68ch;

  /* Space */
  --sp-1: .25rem; --sp-2: .5rem;  --sp-3: .75rem; --sp-4: 1rem;
  --sp-5: 1.25rem; --sp-6: 1.75rem; --sp-7: 2.25rem; --sp-8: 3rem;

  /* Shape */
  --r-sm: 6px; --r-md: 10px; --r-lg: 16px; --r-pill: 999px;
  --shadow-1: 0 1px 2px rgba(31, 40, 55, .06), 0 1px 3px rgba(31, 40, 55, .05);
  --shadow-2: 0 2px 6px rgba(31, 40, 55, .07), 0 8px 24px rgba(31, 40, 55, .07);
  --shadow-3: 0 12px 40px rgba(22, 58, 94, .18);

  /* Layout */
  --wrap: 1140px;
  --outline-w: 294px;
  --rail-w: 252px;
  --masthead-h: 60px;
  --learnbar-h: 52px;

  /* Item-type accents */
  --k-reading: var(--blue-700);
  --k-reading-bg: var(--blue-50);
  --k-dialogue: var(--plum);
  --k-dialogue-bg: #fbf0f6;
  --k-journal: var(--amber-ink);
  --k-journal-bg: #fdf6e6;
  --k-quiz: var(--rust);
  --k-quiz-bg: #fdf0e8;
}

/* --------------------------------------------------------------------------
   2. Reset and base
   -------------------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; line-height: 1.22; color: var(--brand-deep); margin: 0 0 var(--sp-3); letter-spacing: -.005em; }
h1 { font-size: clamp(1.85rem, 1.3rem + 2.1vw, 2.7rem); }
h2 { font-size: clamp(1.35rem, 1.1rem + 1vw, 1.7rem); }
h3 { font-size: 1.18rem; }
h4 { font-size: 1.04rem; }
p  { margin: 0 0 var(--sp-4); }

a { color: var(--brand-dark); text-decoration-color: var(--blue-300); text-underline-offset: 3px; }
a:hover { color: var(--blue-600); text-decoration-color: currentColor; }

img, picture, svg, video { max-width: 100%; }
img { height: auto; }
hr { border: 0; border-top: 1px solid var(--line); margin: var(--sp-5) 0; }
ul, ol { padding-left: 1.3em; }
code, pre { font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace; }
code { font-size: .88em; background: var(--slate-100); padding: .12em .38em; border-radius: var(--r-sm); }
pre { overflow-x: auto; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ico { width: 1.15em; height: 1.15em; flex: none; vertical-align: -.17em; }

.u-visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: var(--sp-3); top: -3rem; z-index: 200;
  background: var(--brand-deep); color: #fff; padding: .6rem 1rem;
  border-radius: var(--r-sm); text-decoration: none; transition: top .15s;
}
.skip-link:focus { top: var(--sp-3); color: #fff; }

.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.wrap.narrow { max-width: 760px; }
.muted { color: var(--muted); font-size: .92rem; }
.eyebrow {
  font-size: .76rem; font-weight: 600; letter-spacing: .09em; text-transform: uppercase;
  color: var(--blue-600); margin: 0 0 var(--sp-2);
}
.lede { font-size: 1.12rem; line-height: 1.6; color: var(--text-soft); max-width: 62ch; }

/* --------------------------------------------------------------------------
   3. Masthead and footer
   -------------------------------------------------------------------------- */

.masthead {
  position: sticky; top: 0; z-index: 60;
  background: var(--brand-deep);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,.08), var(--shadow-1);
}
.masthead-inner {
  width: min(100% - 2rem, 1320px); margin-inline: auto;
  min-height: var(--masthead-h);
  display: flex; align-items: center; gap: var(--sp-4);
}
.brand { display: flex; align-items: center; gap: .6rem; color: #fff; text-decoration: none; padding: .5rem 0; }
.brand-mark { width: 30px; height: 30px; flex: none; color: var(--blue-300); }
.brand-words { display: flex; flex-direction: column; line-height: 1.02; font-weight: 300; font-size: 1.02rem; letter-spacing: .02em; }
.brand-words span:last-child { font-weight: 600; }
.brand:hover { color: #fff; }

.site-nav { margin-left: auto; display: flex; gap: var(--sp-2); }
.site-nav a {
  color: var(--blue-100); text-decoration: none; font-weight: 500;
  padding: .45rem .8rem; border-radius: var(--r-pill); font-size: .95rem;
}
.site-nav a:hover { background: rgba(255,255,255,.12); color: #fff; }

.nav-toggle {
  display: none; margin-left: auto;
  background: transparent; border: 1px solid rgba(255,255,255,.3); color: #fff;
  border-radius: var(--r-sm); padding: .4rem .55rem; cursor: pointer;
}

.site-foot { background: var(--brand-deep); color: var(--blue-100); margin-top: var(--sp-6); padding: var(--sp-6) 0 var(--sp-5); }
.site-foot-inner { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.foot-brand { font-family: var(--font-serif); font-size: 1.25rem; color: #fff; margin: 0 0 .2rem; }
.foot-tag { margin: 0 0 var(--sp-4); color: var(--blue-200); }
.foot-nav { display: flex; gap: var(--sp-4); flex-wrap: wrap; margin-bottom: var(--sp-4); }
.foot-nav a { color: #fff; text-decoration: none; font-size: .95rem; border-bottom: 1px solid rgba(255,255,255,.3); }
.foot-fine { font-size: .85rem; color: var(--blue-300); margin: 0; }
.foot-legal { margin-top: var(--sp-2); }
.foot-legal a { color: #fff; }

/* --------------------------------------------------------------------------
   4. Buttons, chips, bars
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font: inherit; font-size: .95rem; font-weight: 600;
  padding: .58rem 1.05rem; border-radius: var(--r-pill);
  border: 1px solid var(--line-strong); background: var(--surface); color: var(--brand-dark);
  text-decoration: none; cursor: pointer; transition: background .15s, border-color .15s, color .15s, transform .08s;
}
.btn:hover { background: var(--blue-50); border-color: var(--blue-300); color: var(--brand-dark); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; box-shadow: var(--shadow-1); }
.btn-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); color: #fff; }
.btn-lg { font-size: 1.02rem; padding: .74rem 1.35rem; }
.btn-quiet { border-color: transparent; background: transparent; color: var(--muted); font-weight: 500; }
.btn-quiet:hover { background: var(--slate-100); color: var(--brand-dark); }
.btn-onhero { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.45); color: #fff; backdrop-filter: blur(3px); }
.btn-onhero:hover { background: rgba(255,255,255,.26); border-color: #fff; color: #fff; }
.btn[disabled] { opacity: .5; pointer-events: none; }
.cta-row { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin: var(--sp-4) 0 0; }

.tag {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; padding: .16rem .5rem; border-radius: var(--r-pill);
}
.tag-optional { background: var(--slate-100); color: var(--muted); }

.bar { display: block; height: 6px; border-radius: var(--r-pill); background: var(--slate-200); overflow: hidden; }
.bar > span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--blue-500), var(--blue-400)); transition: width .35s ease; }
.bar-label { font-size: .82rem; color: var(--muted); margin: .4rem 0 0; }

/* Progress dot: a ring that fills as the lesson is completed. */
.pdot {
  width: 15px; height: 15px; flex: none; border-radius: 50%;
  border: 2px solid var(--line-strong); background: transparent;
  position: relative; transition: border-color .2s, background .2s;
}
.pdot[data-state="some"] { border-color: var(--blue-400); background: conic-gradient(var(--blue-400) var(--pct, 0%), transparent 0); }
.pdot[data-state="done"] { border-color: var(--green-ink); background: var(--green-ink); }
.pdot[data-state="done"]::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 4px; height: 7px; border: solid #fff; border-width: 0 2px 2px 0;
  transform: rotate(42deg) translate(-1px, -1px);
}

/* --------------------------------------------------------------------------
   5. Splash
   -------------------------------------------------------------------------- */

.hero { position: relative; isolation: isolate; color: #fff; display: grid; }
.hero-img { position: absolute; inset: 0; z-index: -2; }
.hero-img img { width: 100%; height: 100%; object-fit: cover; object-position: 72% 50%; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(100deg, rgba(22,58,94,.94) 0%, rgba(22,58,94,.82) 38%, rgba(31,70,112,.5) 68%, rgba(47,117,179,.3) 100%);
}
.hero-inner {
  width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto;
  padding: clamp(2.5rem, 5vw, 4.75rem) 0 clamp(2.5rem, 5vw, 4.25rem);
  max-width: min(100% - 2.5rem, 760px); margin-left: max(1.25rem, (100vw - var(--wrap)) / 2);
}
.hero-eyebrow { font-size: .8rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--blue-200); margin: 0 0 var(--sp-3); }
.hero h1 { color: #fff; font-size: clamp(2.1rem, 1.4rem + 3vw, 3.4rem); margin-bottom: var(--sp-4); text-wrap: balance; }
.hero-lede { font-size: clamp(1.02rem, .97rem + .35vw, 1.2rem); color: #e9f1fa; line-height: 1.62; max-width: 56ch; margin: 0; }

.band { background: var(--surface-alt); border-block: 1px solid var(--line-warm); }
.section { padding: clamp(1.6rem, 3vw, 2.4rem) 0; }
.section-head { font-size: clamp(1.25rem, 1.05rem + .7vw, 1.5rem); margin-bottom: var(--sp-2); }
.section-lede { color: var(--muted); max-width: 60ch; margin-bottom: var(--sp-4); }

.splash-cards, .course-cards, .lesson-cards, .module-blocks, .principles, .rhythm { list-style: none; padding: 0; margin: 0; }
.splash-cards { display: grid; gap: var(--sp-4); grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr)); }
.splash-card a {
  display: grid; gap: .45rem; height: 100%;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: var(--sp-5); text-decoration: none; color: inherit;
  box-shadow: var(--shadow-1); transition: box-shadow .18s, border-color .18s, transform .18s;
  border-top: 4px solid var(--brand);
}
.splash-card a:hover { box-shadow: var(--shadow-2); border-color: var(--blue-300); transform: translateY(-2px); }
.sc-eyebrow { font-size: .74rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--blue-600); }
.sc-title { font-family: var(--font-serif); font-size: 1.42rem; font-weight: 600; color: var(--brand-deep); line-height: 1.22; }
.sc-sub { color: var(--muted); font-style: italic; }
.sc-meta, .cc-meta { display: flex; flex-wrap: wrap; gap: .8rem; font-size: .85rem; color: var(--muted); margin-top: .5rem; }
.sc-meta span, .cc-meta span { display: inline-flex; align-items: center; gap: .3rem; }
.sc-meta span + span::before, .cc-meta span + span::before { content: "·"; margin-right: .5rem; color: var(--slate-300); }
.sc-go { margin-top: .7rem; font-weight: 600; color: var(--brand); display: inline-flex; align-items: center; gap: .4rem; }

.principles { display: grid; gap: var(--sp-5); grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); }
.principles h3 { color: var(--brand-dark); margin-bottom: .35rem; }
.principles h3::before { content: ""; display: block; width: 32px; height: 3px; background: var(--amber); border-radius: 2px; margin-bottom: .7rem; }
.principles p { color: var(--text-soft); font-size: .96rem; margin: 0; }

/* --------------------------------------------------------------------------
   6. Program page
   -------------------------------------------------------------------------- */

.prog-hero { background: linear-gradient(145deg, var(--brand-deep), var(--blue-700) 62%, var(--blue-600)); color: #fff; }
.prog-hero-inner { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; padding: var(--sp-5) 0 var(--sp-6); }
.prog-hero h1 { color: #fff; margin-bottom: .4rem; text-wrap: balance; }
.prog-hero .eyebrow { color: var(--blue-200); }
.prog-sub { font-family: var(--font-serif); font-size: 1.25rem; font-style: italic; color: var(--blue-100); margin: 0 0 var(--sp-4); }
.prog-stats { display: flex; flex-wrap: wrap; gap: .9rem; margin: 0; font-size: .92rem; color: var(--blue-100); }
.prog-stats span { background: rgba(255,255,255,.12); padding: .3rem .8rem; border-radius: var(--r-pill); }
.prog-body { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.prog-about { max-width: var(--measure); }
.outcomes { margin: 0; padding-left: 0; list-style: none; display: grid; gap: .7rem; max-width: 70ch; }
.outcomes li { position: relative; padding-left: 1.9rem; color: var(--text-soft); }
.outcomes li::before {
  content: ""; position: absolute; left: 0; top: .42em;
  width: 10px; height: 6px; border: solid var(--blue-500); border-width: 0 0 2.5px 2.5px; transform: rotate(-45deg);
}

.rhythm { display: grid; gap: .1rem; max-width: 760px; counter-reset: step; }
.rhythm li { display: flex; gap: var(--sp-4); align-items: flex-start; padding: var(--sp-3) 0; border-bottom: 1px solid var(--line); }
.rhythm li:last-child { border-bottom: 0; }
.rh-ico { width: 38px; height: 38px; flex: none; display: grid; place-items: center; border-radius: var(--r-md); }
.rh-ico .ico { width: 20px; height: 20px; }
.rh-body { display: grid; gap: .15rem; }
.rh-body strong { color: var(--brand-deep); font-size: 1.02rem; }
.rh-body span { color: var(--muted); font-size: .94rem; }

.kind-reading   { background: var(--k-reading-bg);  color: var(--k-reading); }
.kind-dialogue  { background: var(--k-dialogue-bg); color: var(--k-dialogue); }
.kind-journal   { background: var(--k-journal-bg);  color: var(--k-journal); }
.kind-assignment{ background: var(--k-journal-bg);  color: var(--k-journal); }
.kind-activity  { background: var(--k-journal-bg);  color: var(--k-journal); }
.kind-knowledge-check { background: var(--k-quiz-bg); color: var(--k-quiz); }
.kind-graded-quiz     { background: var(--k-quiz-bg); color: var(--k-quiz); }

.course-cards { display: grid; gap: var(--sp-4); grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }
.course-card a {
  display: grid; gap: .4rem; height: 100%; background: var(--surface);
  border: 1px solid var(--line); border-left: 4px solid var(--blue-400);
  border-radius: var(--r-md); padding: var(--sp-5); text-decoration: none; color: inherit;
  box-shadow: var(--shadow-1); transition: box-shadow .18s, transform .18s, border-left-color .18s;
}
.course-card a:hover { box-shadow: var(--shadow-2); transform: translateY(-2px); border-left-color: var(--brand); }
.cc-num { font-size: .74rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--blue-600); }
.cc-title { font-family: var(--font-serif); font-size: 1.22rem; font-weight: 600; color: var(--brand-deep); line-height: 1.25; }
.cc-desc { color: var(--text-soft); font-size: .93rem; line-height: 1.52; }
.cc-bar { display: flex; align-items: center; gap: .6rem; margin-top: .6rem; }
.cc-bar .bar { flex: 1; }
.cc-pct { font-size: .78rem; font-weight: 600; color: var(--muted); min-width: 3ch; text-align: right; }

/* --------------------------------------------------------------------------
   7. Learning layout: one sticky bar, one column
   -------------------------------------------------------------------------- */

/* On learning pages the masthead scrolls away so only one thing is pinned.
   The bar below carries everything a reader needs while moving. */
.page-lesson .masthead,
.page-module .masthead,
.page-course .masthead { position: static; }

.learnbar {
  position: sticky; top: 0; z-index: 55;
  /* Containing block for the dropdown sheets on narrow screens. */
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 10px rgba(31, 40, 55, .05);
}
/* The program name rides at the top of the sticky block, in the masthead's
   blue, so the reader always knows which program they are inside even once
   the masthead itself has scrolled away. */
.lb-program { background: var(--brand-deep); border-top: 1px solid rgba(255, 255, 255, .13); }
.lb-program-inner {
  width: min(100% - 2rem, 1180px); margin-inline: auto;
  display: flex; align-items: center; gap: .5rem;
  min-height: 34px; padding: .3rem 0;
  color: #fff; text-decoration: none;
  font-size: .86rem; font-weight: 600; letter-spacing: .01em;
}
.lb-program-inner:hover { color: var(--blue-200); }
.lb-program-inner > span {
  min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.lb-program-mark { width: 18px; height: 18px; flex: none; color: var(--blue-300); }

.learnbar-inner {
  width: min(100% - 2rem, 1180px); margin-inline: auto;
  display: grid; gap: .3rem; padding: .45rem 0 .55rem;
  /* Grid items must stretch, not size to their content: with justify-items:
     start the breadcrumb takes its max-content width and overflows the track,
     and nothing inside it ever gets the chance to shrink. Both rows are
     left-aligned by their own flex layout anyway. */
  justify-items: stretch;
}
.learnbar-inner > * { min-width: 0; }
/* 7a. Breadcrumb with pickers ---------------------------------------------- */

.lb-crumbs { min-width: 0; flex: 1; }
.lb-crumbs ol { list-style: none; display: flex; align-items: center; flex-wrap: wrap; gap: .1rem; margin: 0; padding: 0; }
.lb-crumb + .lb-crumb::before { content: "/"; color: var(--slate-300); margin: 0 .15rem 0 .1rem; }
.lb-crumb { display: flex; align-items: center; }
.lb-pick { position: relative; }
.lb-pick-btn {
  display: inline-flex; align-items: center; gap: .2rem;
  font: inherit; font-size: .84rem; font-weight: 600; color: var(--brand-dark);
  background: none; border: 1px solid transparent; border-radius: var(--r-sm);
  padding: .25rem .4rem .25rem .5rem; cursor: pointer; white-space: nowrap;
}
.lb-pick-btn:hover { background: var(--blue-50); border-color: var(--blue-200); }
.lb-pick.is-open > .lb-pick-btn { background: var(--blue-100); border-color: var(--blue-300); }
.lb-caret { width: 14px; height: 14px; color: var(--slate-400); transition: transform .15s; }
.lb-pick.is-open .lb-caret { transform: rotate(180deg); }

.lb-menu {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 70;
  min-width: 280px; max-width: min(92vw, 460px);
  max-height: min(60vh, 420px); overflow-y: auto;
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--r-md); box-shadow: var(--shadow-3); padding: .3rem;
}
.lb-menu[hidden] { display: none; }
.lb-menu ul { list-style: none; margin: 0; padding: 0; }
.lb-menu a {
  display: flex; align-items: baseline; gap: .55rem;
  padding: .4rem .5rem; border-radius: var(--r-sm);
  text-decoration: none; color: var(--text-soft); font-size: .88rem; line-height: 1.35;
}
.lb-menu a:hover { background: var(--blue-50); color: var(--brand-dark); }
.lb-menu a.is-current { background: var(--blue-100); color: var(--brand-deep); font-weight: 600; }
.lbm-num {
  flex: none; min-width: 2.2rem; text-align: center;
  font-size: .72rem; font-weight: 700; color: var(--brand);
  background: var(--blue-50); border: 1px solid var(--blue-100);
  border-radius: var(--r-sm); padding: .08rem .25rem; font-variant-numeric: tabular-nums;
}
.lbm-text { flex: 1; min-width: 0; }
.lbm-meta { flex: none; font-size: .74rem; color: var(--slate-400); font-variant-numeric: tabular-nums; }
.lbm-group {
  font-size: .68rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); padding: .55rem .5rem .25rem; border-top: 1px solid var(--line);
  margin-top: .2rem;
}
.lbm-group:first-child { border-top: 0; margin-top: 0; padding-top: .3rem; }
.lb-menu--items .lbm-ico { flex: none; width: 20px; height: 20px; display: grid; place-items: center; border-radius: var(--r-sm); }
.lb-menu--items .lbm-ico .ico { width: 12px; height: 12px; }

/* 7b. Right-hand status ---------------------------------------------------- */

/* 7c. Lesson and item stepping --------------------------------------------- */

.lb-map {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .82rem; font-weight: 600; text-decoration: none; color: var(--brand-dark);
  border: 1px solid var(--line-strong); border-radius: var(--r-pill);
  padding: .2rem .6rem .2rem .5rem;
}
.lb-map:hover { background: var(--blue-50); border-color: var(--blue-300); }
.lb-map .ico { width: 14px; height: 14px; }
.lb-mapcrumb + .lb-crumb::before { content: none; }
.lb-crumbs ol > .lb-crumb:first-child::before { content: none; }

/* Item stepping rides at the end of the breadcrumb, separated by a rule
   rather than by being pushed to the far edge. */
.lb-items {
  display: inline-flex; align-items: center; gap: .25rem;
  margin-left: .45rem; padding-left: .6rem; border-left: 1px solid var(--line);
}
.lb-items::before { content: none !important; }

.lb-step {
  display: inline-grid; place-items: center; width: 28px; height: 28px; flex: none;
  border: 1px solid var(--line-strong); border-radius: var(--r-sm);
  background: var(--surface); color: var(--brand-dark); cursor: pointer; text-decoration: none;
}
.lb-step .ico { width: 16px; height: 16px; }
.lb-step:hover { background: var(--blue-50); border-color: var(--blue-400); }
.lb-step:disabled { opacity: .32; pointer-events: none; }
.lb-itempick { position: relative; }
.lbp-narrow { display: none; }
.lb-itempick .lb-pick-btn { font-variant-numeric: tabular-nums; }
.lb-itempick .lb-menu { min-width: 320px; }

/* Course progress, left-aligned under the breadcrumb. */
.lb-progress { display: flex; align-items: center; gap: .55rem; }
.lb-progress .bar { width: clamp(120px, 26vw, 220px); height: 5px; }
.lb-pct { font-size: .76rem; color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.lb-pct [data-progress-text-for] { font-weight: 700; color: var(--brand-dark); }

/* 7d. The column ----------------------------------------------------------- */

.learn { width: min(100% - 2rem, 1180px); margin-inline: auto; }
.learn-main { padding: var(--sp-5) 0 var(--sp-6); min-width: 0; }

/* 7e. Lesson contents disclosure ------------------------------------------- */

.lesson-contents {
  margin-top: var(--sp-4);
  border: 1px solid var(--line); border-radius: var(--r-md);
  background: var(--surface-alt);
}
.lesson-contents > summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; gap: .5rem;
  padding: .55rem .8rem; font-size: .86rem; font-weight: 600; color: var(--brand-dark);
}
.lesson-contents > summary::-webkit-details-marker { display: none; }
.lesson-contents > summary:hover { background: var(--white); border-radius: var(--r-md); }
.lc-count { margin-left: auto; font-weight: 500; color: var(--muted); font-size: .8rem; }
.lc-caret { color: var(--slate-400); transition: transform .15s; }
.lesson-contents[open] .lc-caret { transform: rotate(180deg); }
.lc-list { list-style: none; margin: 0; padding: .2rem .4rem .45rem; border-top: 1px solid var(--line-warm); }
.lc-row a {
  display: flex; align-items: center; gap: .55rem;
  padding: .35rem .45rem; border-radius: var(--r-sm);
  text-decoration: none; color: var(--text-soft);
}
.lc-row a:hover { background: var(--white); }
.lc-ico { flex: none; width: 22px; height: 22px; display: grid; place-items: center; border-radius: var(--r-sm); }
.lc-ico .ico { width: 13px; height: 13px; }
.lc-reading .lc-ico { background: var(--k-reading-bg); color: var(--k-reading); }
.lc-dialogue .lc-ico { background: var(--k-dialogue-bg); color: var(--k-dialogue); }
.lc-journal .lc-ico, .lc-assignment .lc-ico, .lc-activity .lc-ico { background: var(--k-journal-bg); color: var(--k-journal); }
.lc-knowledge-check .lc-ico, .lc-graded-quiz .lc-ico { background: var(--k-quiz-bg); color: var(--k-quiz); }
.lc-text { flex: 1; min-width: 0; display: grid; gap: .05rem; }
.lc-kind { font-size: .66rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--slate-500); }
.lc-name { font-size: .86rem; line-height: 1.3; }
.lc-min { flex: none; font-size: .74rem; color: var(--slate-400); font-variant-numeric: tabular-nums; }

/* --------------------------------------------------------------------------
   8. Lesson content
   -------------------------------------------------------------------------- */

.crumbs { margin: 0 0 var(--sp-4); }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .3rem; margin: 0; padding: 0; font-size: .82rem; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: .3rem; color: var(--slate-300); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--brand); text-decoration: underline; }

.lesson-head, .course-head, .page-head { max-width: var(--measure); margin-bottom: var(--sp-5); }
.page-head { padding-top: var(--sp-5); }
.lesson-head h1 { text-wrap: balance; }
.lesson-meta { font-size: .86rem; color: var(--muted); margin: var(--sp-4) 0 0; }
.lesson-progress { margin-top: var(--sp-3); max-width: 340px; }

.objectives { background: var(--blue-50); border: 1px solid var(--blue-100); border-left: 3px solid var(--blue-400); border-radius: var(--r-md); padding: var(--sp-3) var(--sp-4); margin: var(--sp-4) 0 0; }
.objectives-head { font-family: var(--font-sans); font-size: .76rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--blue-700); margin: 0 0 var(--sp-2); }
.objectives ul { margin: 0; padding-left: 1.15rem; }
.objectives li { margin-bottom: .35rem; color: var(--text-soft); font-size: .95rem; }
.objectives li:last-child { margin-bottom: 0; }

.items { display: grid; gap: var(--sp-5); }
/* A grid item defaults to min-width:auto, so its min-content width wins over
   the track. One table with nowrap headers then widens every item and the
   whole page scrolls sideways. min-width:0 lets .table-wrap do its job. */
.item { min-width: 0; scroll-margin-top: calc(var(--masthead-h) + var(--learnbar-h) + 16px); }
.item > * { min-width: 0; }
.prose { min-width: 0; }
.table-wrap { min-width: 0; }
.item-head { position: relative; max-width: var(--measure); padding-bottom: var(--sp-3); margin-bottom: var(--sp-4); border-bottom: 1px solid var(--line); }
.item-kind { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; margin: 0 0 .5rem; }
.kind-chip {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: .22rem .6rem; border-radius: var(--r-pill);
}
.kind-chip .ico { width: 14px; height: 14px; }
.item-time { display: inline-flex; align-items: center; gap: .25rem; font-size: .78rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.item-time .ico { width: 13px; height: 13px; }
.item-title { font-size: clamp(1.3rem, 1.1rem + .7vw, 1.6rem); margin: 0; text-wrap: balance; padding-right: 7.5rem; }
.item-done {
  position: absolute; right: 0; top: 0;
  display: inline-flex; align-items: center; gap: .35rem;
  font: inherit; font-size: .78rem; font-weight: 600;
  background: var(--surface); border: 1px solid var(--line-strong); color: var(--muted);
  border-radius: var(--r-pill); padding: .3rem .7rem; cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}
.item-done .ico { width: 15px; height: 15px; }
.item-done:hover { border-color: var(--blue-300); color: var(--brand-dark); background: var(--blue-50); }
.item-done[aria-pressed="true"] { background: var(--green-ink); border-color: var(--green-ink); color: #fff; }
.item--reading .kind-chip { background: var(--k-reading-bg); color: var(--k-reading); }
.item--dialogue .kind-chip { background: var(--k-dialogue-bg); color: var(--k-dialogue); }
.item--journal .kind-chip, .item--assignment .kind-chip, .item--activity .kind-chip { background: var(--k-journal-bg); color: var(--k-journal); }
.item--knowledge-check .kind-chip, .item--graded-quiz .kind-chip { background: var(--k-quiz-bg); color: var(--k-quiz); }

.item.is-optional .item-head { border-bottom-style: dashed; }

/* Interactive items sit in a card, so the reading flow visibly stops. */
.item--dialogue, .item--journal, .item--assignment, .item--activity,
.item--knowledge-check, .item--graded-quiz {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: var(--sp-5) var(--sp-5) var(--sp-5); box-shadow: var(--shadow-1);
}
.item--dialogue { border-top: 3px solid var(--k-dialogue); }
.item--journal, .item--assignment, .item--activity { border-top: 3px solid var(--amber); }
.item--knowledge-check, .item--graded-quiz { border-top: 3px solid var(--k-quiz); }

/* 8a. Prose ---------------------------------------------------------------- */

.prose {
  font-family: var(--font-serif); font-size: 1.09rem; line-height: var(--lh-prose);
  color: var(--text); max-width: var(--measure);
  /* Some references use a bare URL as the link text. An unbreakable 300px
     string would otherwise set the minimum width of the whole column. */
  overflow-wrap: break-word;
}
.prose a, .prose code { overflow-wrap: anywhere; }
.prose > * { max-width: var(--measure); }
.prose h3, .prose h4, .prose h5 { font-family: var(--font-sans); color: var(--brand-dark); margin: var(--sp-5) 0 var(--sp-2); letter-spacing: 0; }
.prose h3 { font-size: 1.14rem; font-weight: 700; }
.prose h4 { font-size: 1rem; font-weight: 700; color: var(--slate-700); }
.prose h3:first-child, .prose h4:first-child { margin-top: 0; }
.prose p { margin: 0 0 var(--sp-4); }
.prose ul, .prose ol { margin: 0 0 var(--sp-4); padding-left: 1.35em; }
.prose li { margin-bottom: .45rem; }
.prose li > ul, .prose li > ol { margin-top: .45rem; }
.prose strong { color: var(--brand-deep); font-weight: 650; }
.prose a { color: var(--brand-dark); }
.prose blockquote {
  margin: var(--sp-4) 0; padding: var(--sp-4) var(--sp-5);
  background: var(--paper-2); border-left: 3px solid var(--amber);
  border-radius: 0 var(--r-md) var(--r-md) 0; font-size: 1.04rem; color: var(--text-soft);
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose hr { margin: var(--sp-5) 0; }
.prose pre { background: var(--slate-900); color: #e8eef6; padding: var(--sp-4); border-radius: var(--r-md); font-size: .85rem; line-height: 1.5; }
.prose pre code { background: none; color: inherit; padding: 0; }

.table-wrap { overflow-x: auto; margin: 0 0 var(--sp-5); max-width: 100%; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); }
.prose .table-wrap { max-width: none; }
table { border-collapse: collapse; width: 100%; font-family: var(--font-sans); font-size: .92rem; }
thead th { background: var(--blue-50); color: var(--brand-deep); text-align: left; font-weight: 700; font-size: .8rem; letter-spacing: .03em; text-transform: uppercase; padding: .6rem .75rem; border-bottom: 2px solid var(--blue-200); white-space: nowrap; }
tbody td { padding: .6rem .75rem; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--text-soft); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:nth-child(even) { background: var(--surface-alt); }

/* 8b. Dialogue ------------------------------------------------------------- */

.dialogue { margin-top: var(--sp-5); }
.dialogue-actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; }
.dialogue .btn-primary { background: var(--k-dialogue); border-color: var(--k-dialogue); }
.dialogue .btn-primary:hover { background: var(--plum-ink); border-color: var(--plum-ink); }
.dialogue-note { font-size: .88rem; color: var(--muted); margin: var(--sp-3) 0 0; max-width: 62ch; }
.dialogue-note.is-ok { color: var(--green-ink); font-weight: 600; }
.dialogue-note.is-warn { color: var(--rust-ink); font-weight: 600; }
.prompt-reveal { margin-top: var(--sp-4); border-top: 1px solid var(--line); padding-top: var(--sp-3); }
.prompt-reveal > summary { cursor: pointer; font-size: .9rem; font-weight: 600; color: var(--brand-dark); }
.prompt-reveal > summary .muted { font-weight: 400; }
.prompt-reveal pre {
  margin-top: var(--sp-3); white-space: pre-wrap; word-break: break-word;
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: var(--sp-4); font-size: .82rem; line-height: 1.55; color: var(--text-soft);
  max-height: 420px; overflow-y: auto;
}

/* 8c. Writing items -------------------------------------------------------- */

.writing-actions { margin-top: var(--sp-5); padding-top: var(--sp-4); border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; }
.writing-note { width: 100%; margin: 0; }

/* 8d. Quiz ----------------------------------------------------------------- */

.quiz { margin-top: var(--sp-4); }
.quiz-meta { font-size: .86rem; color: var(--muted); margin: 0 0 var(--sp-4); }
.quiz-launch { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3); }
.quiz .btn-primary { background: var(--k-quiz); border-color: var(--k-quiz); }
.quiz .btn-primary:hover { background: var(--rust-ink); border-color: var(--rust-ink); }
.quiz-best { font-size: .86rem; font-weight: 600; color: var(--muted); }
.quiz-mount { margin-top: var(--sp-5); }

.q { border-top: 1px solid var(--line); padding-top: var(--sp-5); margin-top: var(--sp-5); }
.q:first-child { border-top: 0; padding-top: 0; margin-top: 0; }
.q-num { font-size: .74rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--k-quiz); margin: 0 0 .4rem; }
.q-stem { font-family: var(--font-serif); font-size: 1.06rem; line-height: 1.55; color: var(--text); margin-bottom: var(--sp-4); }
.q-stem p:last-child { margin-bottom: 0; }
.q-hint { font-size: .82rem; color: var(--muted); margin: -.6rem 0 var(--sp-3); }

.q-options { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.q-option { display: block; }
.q-option label {
  display: flex; gap: .7rem; align-items: flex-start; cursor: pointer;
  border: 1px solid var(--line-strong); border-radius: var(--r-md);
  padding: .7rem .9rem; background: var(--surface); transition: border-color .15s, background .15s;
}
.q-option label:hover { border-color: var(--blue-400); background: var(--blue-50); }
.q-option input { margin: .25rem 0 0; flex: none; accent-color: var(--brand); width: 1.05rem; height: 1.05rem; }
.q-option-text { flex: 1; }
.q-option.is-correct label { border-color: var(--green-ink); background: #eef7f2; }
.q-option.is-wrong label { border-color: var(--rust); background: #fdf1ea; }
.q-option.is-missed label { border-color: var(--amber); background: #fdf8ec; border-style: dashed; }
.q-fb { font-size: .9rem; line-height: 1.5; margin: .45rem 0 0; padding-left: 1.75rem; color: var(--text-soft); }
.q-fb.ok { color: var(--green-ink); }
.q-fb.no { color: var(--rust-ink); }

.q-text-input, .q-blank select {
  font: inherit; font-size: 1rem; padding: .5rem .7rem;
  border: 1px solid var(--line-strong); border-radius: var(--r-sm); background: var(--surface); color: var(--text);
  max-width: 100%;
}
.q-text-input { width: min(100%, 24rem); }
.q-text-input:focus, .q-blank select:focus { border-color: var(--brand); }
.q-blank { display: inline-block; margin: 0 .15rem; }
.q-blank select { font-size: .95rem; padding: .25rem .4rem; }
.q-blank.is-correct select { border-color: var(--green-ink); background: #eef7f2; }
.q-blank.is-wrong select { border-color: var(--rust); background: #fdf1ea; }

.quiz-controls { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; margin-top: var(--sp-6); padding-top: var(--sp-4); border-top: 1px solid var(--line); }
.quiz-result {
  margin-top: var(--sp-4); padding: var(--sp-4) var(--sp-5); border-radius: var(--r-md);
  background: var(--blue-50); border: 1px solid var(--blue-200);
}
.quiz-result.is-pass { background: #eef7f2; border-color: #bfe0ce; }
.quiz-result.is-fail { background: #fdf1ea; border-color: #f0cdb6; }
.quiz-score { font-family: var(--font-serif); font-size: 1.5rem; font-weight: 600; color: var(--brand-deep); margin: 0 0 .3rem; }
.quiz-result p:last-child { margin-bottom: 0; }
.quiz-form-note { font-size: .82rem; color: var(--muted); margin: 0 0 var(--sp-4); }

/* --------------------------------------------------------------------------
   9. Course / module / map
   -------------------------------------------------------------------------- */

.course-desc { max-width: var(--measure); }
.audience p { max-width: var(--measure); color: var(--text-soft); }

.module-blocks { display: grid; gap: var(--sp-4); }
.module-block { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; }
.module-block > details > summary {
  list-style: none; cursor: pointer; display: flex; flex-wrap: wrap; align-items: baseline; gap: .7rem;
  padding: var(--sp-4) var(--sp-5); background: var(--blue-50); border-bottom: 1px solid var(--line);
}
.module-block > details > summary::-webkit-details-marker { display: none; }
.module-block > details:not([open]) > summary { border-bottom-color: transparent; }
.mb-num { font-size: .74rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); }
.mb-title { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 600; color: var(--brand-deep); }
.mb-meta { font-size: .84rem; color: var(--muted); }
.mb-caret { margin-left: auto; color: var(--muted); transition: transform .18s; }
.module-block > details[open] .mb-caret { transform: rotate(180deg); }
.mb-desc { margin: var(--sp-4) var(--sp-5) var(--sp-3); color: var(--text-soft); max-width: var(--measure); font-size: .96rem; }
.mb-link { margin: 0 var(--sp-5) var(--sp-4); font-size: .9rem; }
.mb-link a { display: inline-flex; align-items: center; gap: .3rem; font-weight: 600; text-decoration: none; }
.mb-link a:hover { text-decoration: underline; }
.module-lessons { list-style: none; margin: 0; padding: 0 var(--sp-3) var(--sp-3); }
.module-lessons a { display: flex; align-items: center; gap: .7rem; padding: .6rem .7rem; border-radius: var(--r-sm); text-decoration: none; color: var(--text); border: 1px solid transparent; }
.module-lessons a:hover { background: var(--blue-50); border-color: var(--blue-200); }
.ml-num { font-variant-numeric: tabular-nums; font-size: .78rem; font-weight: 700; color: var(--brand); background: var(--blue-50); border-radius: var(--r-sm); padding: .15rem .4rem; min-width: 2.4rem; text-align: center; }
.ml-title { flex: 1; min-width: 0; font-size: .96rem; }
.ml-time { font-size: .8rem; color: var(--muted); font-variant-numeric: tabular-nums; }

.lesson-cards { display: grid; gap: var(--sp-4); grid-template-columns: repeat(auto-fill, minmax(min(100%, 290px), 1fr)); }
.lesson-card a { display: grid; gap: .35rem; height: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: var(--sp-5); text-decoration: none; color: inherit; box-shadow: var(--shadow-1); transition: box-shadow .18s, transform .18s; }
.lesson-card a:hover { box-shadow: var(--shadow-2); transform: translateY(-2px); }
.lc-num { font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); }
.lc-title { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 600; color: var(--brand-deep); line-height: 1.3; }
.lc-desc { font-size: .9rem; color: var(--text-soft); line-height: 1.5; }
.lc-foot { display: flex; align-items: center; gap: .5rem; margin-top: .6rem; flex-wrap: wrap; }
.lc-time { display: inline-flex; align-items: center; gap: .25rem; font-size: .8rem; color: var(--muted); margin-left: auto; }
.minichip { display: inline-flex; align-items: center; gap: .18rem; font-size: .74rem; font-weight: 600; color: var(--muted); }
.minichip-ico { display: inline-flex; color: var(--slate-400); }
.minichip .ico { width: 13px; height: 13px; }

.project-card { display: flex; gap: var(--sp-4); align-items: center; background: linear-gradient(135deg, #fdf8ec, var(--surface) 55%); border: 1px solid var(--amber); border-radius: var(--r-lg); padding: var(--sp-5); text-decoration: none; color: inherit; box-shadow: var(--shadow-1); }
.project-card:hover { box-shadow: var(--shadow-2); }
.pc-ico { width: 44px; height: 44px; flex: none; display: grid; place-items: center; border-radius: var(--r-md); background: var(--amber); color: #fff; }
.pc-ico .ico { width: 22px; height: 22px; }
.pc-body { display: grid; gap: .2rem; flex: 1; }
.pc-title { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 600; color: var(--brand-deep); }
.pc-desc { font-size: .92rem; color: var(--text-soft); }
.pc-meta { font-size: .8rem; color: var(--muted); }
.pc-go { color: var(--brand); }

.further .prose { font-size: 1rem; }

/* The map reads as an indented outline: one narrow column, lesson rows leading
   the eye across to duration and progress. */
.mapping { width: min(100% - 2.5rem, 880px); margin-inline: auto; padding-bottom: var(--sp-6); }

.mo-course { margin-bottom: var(--sp-6); }
.mo-course-head { border-bottom: 2px solid var(--blue-200); padding-bottom: var(--sp-2); margin-bottom: var(--sp-4); }
.mo-course-head h2 { margin: 0 0 .25rem; }
.mo-course-head a { text-decoration: none; display: flex; flex-wrap: wrap; align-items: baseline; gap: .6rem; }
.mo-ckicker { font-family: var(--font-sans); font-size: .72rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--brand); }
.mo-cmeta { font-size: .84rem; color: var(--muted); margin: 0 0 .5rem; }
.mo-cbar { display: flex; align-items: center; gap: .6rem; }
.mo-cbar .bar { flex: 1; max-width: 320px; }
.mo-cpct { font-size: .76rem; font-weight: 700; color: var(--muted); font-variant-numeric: tabular-nums; }

.mo-modules { list-style: none; margin: 0; padding: 0; }
.mo-module { margin-bottom: var(--sp-4); }
.mo-module-head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .6rem;
  font-family: var(--font-sans); font-size: .95rem; margin: 0 0 .35rem;
}
.mo-module-head a { display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem; text-decoration: none; }
.mo-mnum {
  display: inline-flex; align-items: center; gap: .3rem;
  font-size: .68rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: #fff; background: var(--brand); border-radius: var(--r-sm); padding: .14rem .45rem;
}
.mo-mnum .ico { width: 12px; height: 12px; }
.mo-mtitle { font-weight: 600; color: var(--brand-deep); }
.mo-module-head a:hover .mo-mtitle { text-decoration: underline; }
.mo-mmeta { margin-left: auto; font-size: .76rem; color: var(--slate-400); }

.mo-lessons { list-style: none; margin: 0; padding: 0 0 0 1.1rem; border-left: 2px solid var(--blue-100); }
.mo-lesson a {
  display: flex; align-items: baseline; gap: .55rem;
  padding: .34rem .5rem; border-radius: var(--r-sm);
  text-decoration: none; color: var(--text-soft); font-size: .92rem;
}
.mo-lesson a:hover { background: var(--blue-50); color: var(--brand-dark); }
.mo-num { flex: none; min-width: 2.2rem; font-size: .76rem; font-weight: 700; color: var(--brand); font-variant-numeric: tabular-nums; }
.mo-title { flex: 0 1 auto; min-width: 0; max-width: calc(100% - 9rem); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* A leader rule, like a table of contents. */
.mo-dots { flex: 1; min-width: 1.5rem; border-bottom: 1px dotted var(--line-strong); transform: translateY(-.25em); }
.mo-time { flex: none; font-size: .78rem; color: var(--slate-400); font-variant-numeric: tabular-nums; }
.mo-lesson .pdot { flex: none; align-self: center; }
.mo-project .mo-mnum { background: var(--amber-ink); }
.mo-project .mo-lessons { border-left-color: #f0e2bf; }


/* --------------------------------------------------------------------------
   10. Pager
   -------------------------------------------------------------------------- */

.pager { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); margin-top: var(--sp-6); padding-top: var(--sp-4); border-top: 1px solid var(--line); }
.pager-link { display: flex; align-items: center; gap: .7rem; padding: var(--sp-4); background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); text-decoration: none; color: inherit; transition: border-color .18s, box-shadow .18s; }
.pager-link:hover { border-color: var(--blue-400); box-shadow: var(--shadow-1); }
.pager-next { justify-content: flex-end; text-align: right; }
.pager-text { display: grid; gap: .15rem; min-width: 0; }
.pager-dir { font-size: .72rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--brand); }
.pager-title { font-family: var(--font-serif); font-size: 1.02rem; color: var(--brand-deep); line-height: 1.3; }
.pager-link .ico { width: 20px; height: 20px; color: var(--brand); flex: none; }

/* --------------------------------------------------------------------------
   11. Responsive
   -------------------------------------------------------------------------- */

/* The bar sheds its labels before it sheds its controls. */
@media (max-width: 860px) {
  .lb-map span { display: none; }
  .lb-map { padding: .2rem .45rem; }

  /* The breadcrumb collapses rather than wrapping onto three lines. The
     lesson picker already lists every lesson in the course grouped by module,
     so hiding the course and module pickers loses no destination, and the Map
     link covers moving between courses. */
  .lb-pick--course, .lb-pick--module { display: none; }
  .lb-pick--lesson + .lb-items { margin-left: .35rem; padding-left: .5rem; }
  .lb-crumbs ol { flex-wrap: nowrap; }
  .lb-crumb { min-width: 0; }
  /* Long labels such as "Course Project" must be able to ellipsis. A flex
     item will not shrink past its min-content width unless told to. */
  .lb-crumbs, .lb-crumbs ol, .lb-pick-btn { min-width: 0; }
  /* The stepper keeps its natural size; the lesson label takes whatever is
     left and truncates, rather than being capped at a guessed fraction. */
  /* "Item 3 of 9" becomes "3/9", and the steppers lose a few pixels, which
     is the difference between the row fitting and the next arrow falling off
     the edge on a 360px phone. */
  .lbp-wide { display: none; }
  .lbp-narrow { display: inline; }
  .lb-items { flex: none; gap: .15rem; margin-left: .3rem; padding-left: .45rem; }
  .lb-step { width: 26px; height: 26px; }
  .lb-itempick .lb-pick-btn { padding: .25rem .25rem .25rem .4rem; }
  .lb-mapcrumb { flex: none; }
  .lb-crumb + .lb-crumb::before { margin: 0 .1rem; }
  .lb-pick--lesson { flex: 1 1 auto; min-width: 2.5rem; }
  .lb-pick--lesson .lb-pick-btn { width: 100%; justify-content: flex-start; }
  .lb-pick-label {
    min-width: 0; flex: 0 1 auto;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  }

  /* Menus become a sheet spanning the bar instead of hanging off a button,
     which is what was pushing the document wider than the viewport. The
     positioning context is the bar itself, so .lb-pick must not be one. */
  .lb-pick, .lb-itempick { position: static; }
  .lb-itempick .lb-menu { min-width: 0; }
  .lb-menu {
    position: absolute; top: 100%; left: 0; right: 0;
    min-width: 0; max-width: none; width: auto;
    max-height: 62vh;
    border-left: 0; border-right: 0;
    border-radius: 0 0 var(--r-md) var(--r-md);
    box-shadow: 0 14px 28px rgba(22, 58, 94, .22);
  }
  .lb-menu ul { padding-bottom: .2rem; }
  .lb-menu a { padding: .55rem .6rem; }
  .lbm-text { white-space: normal; }

  /* Map rows become a small grid: the number and the duration hold their
     columns while the title wraps inside its own, instead of flex-wrapping
     each piece onto a line of its own. */
  .mo-lesson a {
    display: grid; grid-template-columns: 2.3rem minmax(0, 1fr) auto auto;
    column-gap: .5rem; align-items: baseline;
  }
  .mo-title { max-width: none; white-space: normal; overflow: visible; }
  .mo-dots { display: none; }
  .mo-time { margin-left: 0; }
  .mo-module-head a { flex: 1 1 100%; }
  .mo-mmeta { margin-left: 0; }
}

@media (max-width: 760px) {
  :root { --fs-base: 1rem; --measure: 100%; }
  .masthead-inner { flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; width: 100%; flex-direction: column; padding-bottom: var(--sp-3); margin-left: 0; }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: .6rem .5rem; }

  .learn { width: min(100% - 1.6rem, 100%); }
  .learn-main { padding-top: var(--sp-4); }
  .item--dialogue, .item--journal, .item--assignment, .item--activity,
  .item--knowledge-check, .item--graded-quiz { padding: var(--sp-4); border-radius: var(--r-md); }
  .item-title { padding-right: 0; }
  .item-done { position: static; margin-top: var(--sp-3); }
  .item-head { padding-bottom: var(--sp-3); }
  .prose { font-size: 1.04rem; }
  .pager { grid-template-columns: 1fr; }
  .pager-next { justify-content: flex-start; text-align: left; flex-direction: row-reverse; }
  .dialogue-actions .btn, .quiz-launch .btn, .writing-actions .btn { flex: 1 1 auto; justify-content: center; }
  .prose .table-wrap { font-size: .86rem; }
}

/* Generic "more coming" cards, so the grid shows its eventual shape without
   promising a particular program. Flat and unclickable by design. */
.splash-card--soon {
  display: grid; gap: .45rem; align-content: center; justify-items: center;
  text-align: center; padding: var(--sp-5);
  background: var(--surface-alt); border: 1px dashed var(--line-strong);
  border-radius: var(--r-lg); color: var(--muted); min-height: 190px;
}
.sc-soon-mark { color: var(--blue-300); }
.sc-soon-mark .ico { width: 26px; height: 26px; }
.sc-soon-title { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 600; color: var(--slate-600); }
.sc-soon-sub { font-size: .88rem; line-height: 1.5; max-width: 30ch; }

/* Per-item report link: present on all 366 items, so it has to be quiet
   enough to ignore and findable when wanted. */
.item-report { margin: var(--sp-4) 0 0; padding-top: .6rem; border-top: 1px dashed var(--line); }
.item-report-link {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: .78rem; color: var(--slate-500); text-decoration: none;
}
.item-report-link .ico { width: 13px; height: 13px; }
.item-report-link:hover { color: var(--rust-ink); text-decoration: underline; }

/* --------------------------------------------------------------------------
   11b. Vetting seal and status
   -------------------------------------------------------------------------- */

/* The seal states, in public, whether a program has finished expert review.
   It is a link, not an ornament: it goes to the page that explains itself. */
.seal {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .4rem .8rem .4rem .5rem; border-radius: var(--r-pill);
  border: 1px solid currentColor; background: var(--surface);
  text-decoration: none; line-height: 1.1; white-space: nowrap;
}
a.seal:hover { box-shadow: var(--shadow-1); }
.seal-ring { display: grid; place-items: center; width: 1.9em; height: 1.9em; flex: none; }
.seal-ico { width: 100%; height: 100%; }
.seal-words { display: flex; flex-direction: column; gap: .1em; min-width: 0; }
.seal-kicker { font-size: .58em; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; opacity: .75; }
.seal-label { font-size: .82em; font-weight: 700; letter-spacing: .01em; }

.seal--vetted { color: var(--teal); background: var(--teal-bg); }
.seal--in-progress { color: var(--amber-ink); background: #fdf6e6; }

.seal--sm { font-size: .82rem; padding: .28rem .6rem .28rem .35rem; }
.seal--md { font-size: .95rem; }
.seal--lg { font-size: 1.1rem; padding: .55rem 1rem .55rem .6rem; }
.seal--xl { font-size: 1.3rem; padding: .7rem 1.2rem .7rem .7rem; }

/* On the program hero the seal sits on dark blue. */
.prog-hero .seal { background: rgba(255,255,255,.95); border-color: transparent; }

.prog-hero-top { display: flex; flex-wrap: wrap; gap: var(--sp-4); align-items: flex-start; justify-content: space-between; }
.prog-hero-words { flex: 1 1 24rem; min-width: 0; }

.status-head { display: flex; flex-wrap: wrap; gap: var(--sp-5); align-items: center; }
.status-head > div { flex: 1 1 20rem; min-width: 0; }

/* A quiet reminder on every course and lesson page. */
.vet-strip {
  display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3);
  margin: 0 0 var(--sp-5); padding: var(--sp-3) var(--sp-4);
  background: var(--surface-alt); border: 1px solid var(--line-warm);
  border-left: 3px solid var(--amber); border-radius: var(--r-md);
}
.vet-strip p { margin: 0; font-size: .88rem; color: var(--text-soft); flex: 1 1 18rem; }

.vetting { border-top: 1px solid var(--line); }
.vet-head { display: flex; flex-wrap: wrap; gap: var(--sp-4); align-items: center; margin-bottom: var(--sp-4); }
.vet-head > div { flex: 1 1 22rem; min-width: 0; }
.vet-head .section-head { margin-bottom: .3rem; }
.vet-points { list-style: none; margin: 0 0 var(--sp-5); padding: 0; display: grid; gap: .75rem; max-width: var(--measure); }
.vet-points li { position: relative; padding-left: 1.6rem; color: var(--text-soft); font-size: .96rem; line-height: 1.55; }
.vet-points li::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: .5rem; height: .5rem; border-radius: 50%; background: var(--amber);
}
.vet-points strong { color: var(--brand-deep); }
.vet-pending {
  font-size: .9rem; color: var(--muted); background: var(--surface-alt);
  border: 1px dashed var(--line-strong); border-radius: var(--r-md);
  padding: var(--sp-3) var(--sp-4); max-width: var(--measure);
}

.seal-key { list-style: none; margin: var(--sp-4) 0; padding: 0; display: grid; gap: var(--sp-4); }
.seal-key li { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: flex-start; }
.seal-key p { margin: 0; flex: 1 1 18rem; color: var(--text-soft); font-size: .95rem; }

/* --------------------------------------------------------------------------
   11c. About page pieces
   -------------------------------------------------------------------------- */

.hero--about .hero-inner { padding-block: clamp(2rem, 4vw, 3.25rem); }
.sub-head { font-family: var(--font-sans); font-size: 1.02rem; font-weight: 700; color: var(--brand-dark); margin: var(--sp-6) 0 var(--sp-3); }
.aside-note {
  font-size: .95rem; color: var(--muted); font-style: italic;
  border-left: 3px solid var(--blue-200); padding-left: var(--sp-4); margin-top: var(--sp-5);
  max-width: var(--measure);
}
.measure { max-width: var(--measure); }

.bio { display: flex; flex-wrap: wrap; gap: var(--sp-5); align-items: flex-start; }
.bio-photo {
  width: 160px; height: 160px; flex: none; border-radius: var(--r-lg);
  object-fit: cover; border: 1px solid var(--line-warm); box-shadow: var(--shadow-1);
}
.bio-body { flex: 1 1 18rem; min-width: 0; }
.bio-name { font-family: var(--font-serif); font-size: 1.2rem; font-weight: 600; color: var(--brand-deep); margin: 0 0 .4rem; }
.bio-body p { color: var(--text-soft); }


/* --------------------------------------------------------------------------
   11d. Guided Conversation assistants
   -------------------------------------------------------------------------- */

.dialogue-lead { font-size: .92rem; font-weight: 600; color: var(--text-soft); margin: 0 0 var(--sp-3); }
.dialogue-actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); align-items: center; }
.dialogue-secondary { display: flex; flex-wrap: wrap; gap: var(--sp-2); align-items: center; margin-top: var(--sp-3); }
.btn-small { font-size: .85rem; padding: .4rem .8rem; }

/* There is no desktop app on a phone, so do not offer one. */
@media (max-width: 700px), (pointer: coarse) {
  [data-provider="claude-app"] { display: none; }
}

/* Each assistant keeps its own tint so the row reads as a choice rather than
   a primary action with two afterthoughts. */
.btn-assistant { border-width: 1.5px; font-weight: 650; }
.btn-claude { color: #b4541f; border-color: #e3b394; background: #fdf4ee; }
.btn-claude:hover { background: #fbe9dd; border-color: #d08a5c; color: #8f3f14; }
.btn-chatgpt { color: #0b6b58; border-color: #9ccfc1; background: #eef8f5; }
.btn-chatgpt:hover { background: #ddf0ea; border-color: #63b49c; color: #084f41; }

/* --------------------------------------------------------------------------
   12. Print — for the journal and project prompts
   -------------------------------------------------------------------------- */

@media print {
  .masthead, .learnbar, .pager, .site-foot, .skip-link, .lesson-contents,
  .vet-strip, .item-done, .dialogue-actions, .dialogue-secondary,
  .writing-actions, .quiz { display: none !important; }
  body { background: #fff; font-size: 11pt; }
  .learn { display: block; width: auto; }
  .learn-main { padding: 0; }
  .prose, .prose > * { max-width: none; }
  .item { break-inside: avoid-page; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .85em; color: #555; word-break: break-all; }
  .item--journal, .item--assignment, .item--activity { border: 0; box-shadow: none; padding: 0; }
  body.printing-one .item { display: none; }
  body.printing-one .item.print-target { display: block; }
}