:root {
  --site-max: 1600px;
  --page-pad: clamp(1rem, 2.5vw, 2rem);

  --text: #1b1b1b;
  --muted: rgba(0,0,0,0.62);
  --bg: #ffffff;
  --soft: rgba(0,0,0,0.035);
  --border: rgba(0,0,0,0.16);

  --link: #0b57d0;
  --link-visited: #5a2ea6;

  --code-bg: rgba(0,0,0,0.055);
  --code-border: rgba(0,0,0,0.12);

  --radius: 10px;
  --shadow: 0 1px 2px rgba(0,0,0,0.06);

  --serif: ui-serif, Georgia, "Times New Roman", Times, serif;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --nav-w: 420px;
  --content-measure: 80ch;
}

html { scroll-behavior: smooth; }

/* ============================================================
   IMPORTANT: Org exporter wraps everything in #content (and sometimes
   adds width constraints). Neutralize those so our layout applies
   uniformly to the whole page.
   ============================================================ */

#content {
  max-width: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

#content > #table-of-contents {
  /* if Org ever emits an extra TOC outside your aside, hide it */
  display: none;
}

/* ============================================================
   Base typography
   ============================================================ */

body {
  margin: 0;
  padding: 0;
  font-family: var(--serif);
  font-size: 1.06rem;
  line-height: 1.68;
  color: var(--text);
  background: var(--bg);
  counter-reset: part chapter section;
}

p { margin: 0.7rem 0; }
strong { font-weight: 650; }
p, li { overflow-wrap: anywhere; }

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 0.08em;
}
a:visited { color: var(--link-visited); }
a:hover { text-decoration-thickness: 0.12em; }

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--sans);
  line-height: 1.25;
  margin: 1.6rem 0 0.6rem;
}
h1 { font-size: 1.9rem; margin-top: 0.6rem; }
h2 { font-size: 1.55rem; margin-top: 2.0rem; }
h3 { font-size: 1.28rem; margin-top: 1.8rem; }
h4 { font-size: 1.10rem; margin-top: 1.3rem; }
h5 { font-size: 1.0rem; margin-top: 1.1rem; }
h6 { font-size: 0.95rem; margin-top: 1.0rem; color: var(--muted); }

h2, h3, h4 { scroll-margin-top: 1.2rem; }

/* Lists, tables, code */
ul, ol { padding-left: 1.35rem; margin: 0.7rem 0; }
li { margin: 0.25rem 0; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-family: var(--sans);
  font-size: 0.98rem;
}
th, td {
  border: 1px solid var(--border);
  padding: 0.5rem 0.6rem;
  vertical-align: top;
}
th { background: var(--soft); font-weight: 650; }

code, pre { font-family: var(--mono); font-size: 0.95em; }
code {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  padding: 0.10em 0.32em;
  border-radius: 7px;
}
pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  overflow: auto;
  box-shadow: var(--shadow);
  margin: 1rem 0;
}
pre code { background: transparent; border: none; padding: 0; }

/* ============================================================
   Two-column layout (desktop): TOC left, EVERYTHING else right
   ============================================================ */

.book-layout {
  max-width: var(--site-max);
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
}

/* Right column: make sure it wraps ALL Org content */
.book-main {
  max-width: var(--content-measure);
}

/* Desktop: permanent sticky sidebar */
@media (min-width: 1000px) {
  .book-layout {
    display: grid;
    grid-template-columns: var(--nav-w) minmax(600px, 1fr);
    gap: 2.5rem;
    align-items: start;
  }

  .book-nav {
    position: sticky;
    top: 1rem;
    max-height: calc(100vh - 2rem);
    overflow: auto;

    padding: var(--page-pad);
    border-right: 1px solid var(--border);
  }

  .book-main {
    padding: 0 var(--page-pad) var(--page-pad) var(--page-pad);
    margin: 0;
    justify-self: start;
  }
}

/* Mobile: drawer-based TOC */
@media (max-width: 999px) {
  .book-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85%;
    max-width: 380px;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    padding: var(--page-pad);
    padding-top: 1.5rem;
    background: var(--bg);
    border-right: 1px solid var(--border);
    box-shadow: 2px 0 12px rgba(0,0,0,0.15);
    transition: left 0.3s ease-out;
  }

  .book-nav.mobile-open {
    left: 0;
  }

  .book-main {
    padding: 0 var(--page-pad) var(--page-pad) var(--page-pad);
    margin: 0 auto;
  }

  /* Mobile TOC toggle button */
  .mobile-toc-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 999;
    padding: 0.75rem 1rem;
    background: var(--link);
    color: white;
    border: none;
    border-radius: 50px;
    font-family: var(--sans);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }

  .mobile-toc-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.25);
  }

  .mobile-toc-toggle:active {
    transform: translateY(0);
  }

  .mobile-toc-toggle svg {
    flex-shrink: 0;
  }

  /* Mobile back button - bottom left */
  .mobile-back-button {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    z-index: 998;
    padding: 0.65rem 0.9rem;
    background: var(--text);
    color: white;
    border: none;
    border-radius: 50px;
    font-family: var(--sans);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
  }

  .mobile-back-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.25);
  }

  .mobile-back-button:active {
    transform: translateY(0);
  }

  .mobile-back-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
  }

  /* Backdrop */
  .mobile-toc-backdrop {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease-out;
  }

  .mobile-toc-backdrop.active {
    display: block;
    opacity: 1;
  }
}

/* Hide mobile elements on desktop */
@media (min-width: 1000px) {
  .mobile-toc-toggle,
  .mobile-toc-backdrop,
  .mobile-back-button {
    display: none !important;
  }
}

/* ============================================================
   Front matter
   ============================================================ */

.book-frontmatter {
  text-align: center;
  margin: 3rem 0 2.5rem 0;
}
.book-title { font-size: 2.1rem; font-weight: 700; margin: 0 0 0.6rem 0; }
.book-subtitle { font-size: 1.2rem; font-weight: 400; color: rgba(0,0,0,0.7); margin: 0 0 1.2rem 0; }
.book-author { font-size: 1rem; font-weight: 400; color: rgba(0,0,0,0.6); margin: 0; }

/* ============================================================
   TOC: sidebar-optimized (no centered box)
   ============================================================ */

#table-of-contents {
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
}

/* Never apply BODY heading labels inside TOC */
#table-of-contents h1::before,
#table-of-contents h2::before,
#table-of-contents h3::before,
#table-of-contents h4::before,
#table-of-contents h5::before,
#table-of-contents h6::before { content: none !important; }

#table-of-contents h1,
#table-of-contents h2,
#table-of-contents h3,
#table-of-contents h4,
#table-of-contents h5,
#table-of-contents h6 {
  counter-increment: none !important;
  counter-reset: none !important;
}

/* Independent TOC counters */
#table-of-contents { counter-reset: tocpart tocchapter; }

#text-table-of-contents > ul { margin: 0; padding-left: 0; list-style: none; }
#text-table-of-contents > ul > li { margin: 0.65rem 0; counter-increment: tocpart; }

#text-table-of-contents > ul > li > a::before {
  content: "Part " counter(tocpart, upper-roman) ": ";
  font-weight: 600;
}

#text-table-of-contents > ul > li > ul {
  margin-top: 0.35rem;
  padding-left: 1.05rem;
  list-style: none;
}

#text-table-of-contents > ul > li > ul > li {
  margin: 0.35rem 0;
  counter-increment: tocchapter;
}

#text-table-of-contents > ul > li > ul > li > a::before {
  content: counter(tocchapter) ". ";
  font-weight: 500;
}

#table-of-contents h2 {
  margin: 0 0 0.9rem 0;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

#table-of-contents a { text-decoration: none; color: inherit; }
#table-of-contents a:hover { text-decoration: underline; }

/* Collapsible TOC sections */
#text-table-of-contents > ul > li > ul > li > ul {
  margin-top: 0.25rem;
  padding-left: 1.2rem;
  list-style: none;
  overflow: hidden;
  transition: max-height 0.25s ease-out, opacity 0.2s ease-out;
}

#text-table-of-contents > ul > li > ul > li > ul.collapsed {
  max-height: 0;
  opacity: 0;
  margin-top: 0;
}

#text-table-of-contents > ul > li > ul > li > ul:not(.collapsed) {
  max-height: 500px;
}

/* Section links styling */
#text-table-of-contents > ul > li > ul > li > ul > li {
  margin: 0.2rem 0;
  font-size: 0.92em;
}

#text-table-of-contents > ul > li > ul > li > ul > li > a {
  color: var(--muted);
  padding-left: 0.3rem;
}

#text-table-of-contents > ul > li > ul > li > ul > li > a:hover {
  color: var(--text);
}

/* Arrow indicator */
.toc-arrow {
  display: inline-block;
  width: 1.1em;
  text-align: center;
  margin-right: 0.15em;
  font-size: 0.8em;
  user-select: none;
  cursor: pointer;
  transition: transform 0.2s ease;
  vertical-align: baseline;
}

/* ============================================================
   Org HTML counters in BODY (Parts/Chapters/Sections)
   ============================================================ */

body { counter-reset: part chapter section; }

/* Part headings - major book divisions */
.outline-2 > h2 {
  counter-increment: part;
  font-size: 2.2rem;
  text-align: center;
  margin-top: 5rem;
  margin-bottom: 2.5rem;
  padding: 2rem 0;
  border-top: 4px solid var(--text);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(to bottom, rgba(0,0,0,0.04), rgba(0,0,0,0.01));
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.outline-2 > h2::before {
  content: "Part " counter(part, upper-roman);
  display: block;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

/* Chapter headings - clear visual break */
.outline-3 { counter-reset: section; }
.outline-3 > h3 {
  counter-increment: chapter;
  font-size: 1.65rem;
  margin-top: 4rem;
  margin-bottom: 1.5rem;
  padding-top: 1.5rem;
  padding-bottom: 1rem;
  border-top: 2px solid var(--border);
  background: linear-gradient(to bottom, rgba(0,0,0,0.025), transparent);
  display: flex;
  width: 100%;
}

.outline-3 > h3::before {
  content: "Chapter " counter(chapter) ": ";
  font-weight: 700;
}

/* Section headings */
.outline-4 > h4 { counter-increment: section; }
.outline-4 > h4::before {
  content: counter(chapter) "." counter(section) " ";
  font-weight: 700;
}

/* Wide screens: slightly larger type */
@media (min-width: 900px) {
  body { font-size: 1.10rem; }
}


/* ----------------------------
   5) Your pedagogical boxes — upgraded
   - More “booky”: left accent + small header label
   ---------------------------- */

/* Generic box styling */
.intuitionbox, .examplebox, .takeawaybox, .robustnessbox,
.assumptionbox, .awarenessbox, .workedexample,
.chapterorientationbox, .foundationorientationbox,
.questionblock {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.95rem 1.05rem;
  margin: 1.1rem 0;
  background: var(--soft);
  box-shadow: var(--shadow);
}

/* Left accent to help scanning */
.intuitionbox, .examplebox, .takeawaybox, .robustnessbox,
.assumptionbox, .awarenessbox, .workedexample,
.chapterorientationbox, .foundationorientationbox,
.questionblock {
  border-left-width: 5px;
}

/* Slight differentiation by type (subtle) */
.intuitionbox { background: rgba(0,0,0,0.03); border-left-color: rgba(0,0,0,0.35); }
.examplebox { background: rgba(0,80,160,0.06); border-left-color: rgba(0,80,160,0.45); }
.takeawaybox { background: rgba(0,120,60,0.06); border-left-color: rgba(0,120,60,0.45); }
.robustnessbox { background: rgba(184,134,11,0.08); border-left-color: rgba(184,134,11,0.55); }
.assumptionbox { background: rgba(120,0,120,0.06); border-left-color: rgba(120,0,120,0.45); }
.awarenessbox { background: rgba(184,134,11,0.05); border-left-color: rgba(184,134,11,0.50); }

.chapterorientationbox { background: rgba(0,0,0,0.025); border-left-color: rgba(0,0,0,0.25); }
.foundationorientationbox { background: rgba(0,0,0,0.035); border-left-color: rgba(0,0,0,0.30); }

.workedexample {
  background: rgba(0,80,160,0.06);
  border-left-color: rgba(0,80,160,0.60);
  border-width: 1px;
}

/* Box “titles” via CSS only (more subtle + consistent) */
.intuitionbox::before,
.examplebox::before,
.takeawaybox::before,
.robustnessbox::before,
.assumptionbox::before,
.workedexample::before,
.chapterorientationbox::before,
.foundationorientationbox::before {
  display: block;
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 0.92rem;
  margin-bottom: 0.45rem;
  color: rgba(0,0,0,0.78);
}

.intuitionbox::before { content: "Intuition"; }
.examplebox::before { content: "Example"; }
.takeawaybox::before { content: "Takeaway"; }
.robustnessbox::before { content: "Robustness"; }
.assumptionbox::before { content: "Assumptions in Focus"; }
.workedexample::before { content: "Worked Example (exam-style reasoning)"; }
.chapterorientationbox::before { content: "Chapter Orientation"; }
.foundationorientationbox::before { content: "Foundations Orientation"; }

/* Make the first paragraph inside boxes slightly tighter */
.intuitionbox > p:first-child,
.examplebox > p:first-child,
.takeawaybox > p:first-child,
.robustnessbox > p:first-child,
.assumptionbox > p:first-child,
.workedexample > p:first-child,
.chapterorientationbox > p:first-child,
.foundationorientationbox > p:first-child,
.questionblock > p:first-child {
  margin-top: 0.35rem;
}

/* Question block: make it look "exam prompt"-like */
.questionblock {
  background: rgba(0,0,0,0.02);
  border-left-color: rgba(0,0,0,0.28);
}

/* ============================================================
   Collapsible Box Functionality (HTML-only)
   ============================================================ */

/* Title bar becomes clickable */
.box-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  padding: 0.5rem 0;
  margin: 0 0 0.75rem 0;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  color: rgba(0,0,0,0.78);
}

/* Box type label - less emphasized */
.box-type-label {
  font-weight: 600;
  font-size: 0.85rem;
  opacity: 0.7;
  color: rgba(0,0,0,0.65);
}

/* Separator between type and topic */
.box-title-separator {
  opacity: 0.5;
  font-weight: 400;
}

/* Box topic label - more emphasized */
.box-topic-label {
  font-weight: 700;
  font-size: 0.95rem;
  color: rgba(0,0,0,0.85);
}

/* Chevron icon */
.box-chevron {
  font-size: 0.75rem;
  transition: transform 0.2s ease;
  color: rgba(0,0,0,0.5);
  margin-left: 0.5rem;
}

/* Rotate chevron when expanded */
.box-expanded .box-chevron {
  transform: rotate(90deg);
}

/* Collapsible content container */
.box-content {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.3s ease, opacity 0.2s ease, overflow 0s 0.3s;
}

/* Expanded state */
.box-expanded .box-content {
  max-height: 5000px; /* Large enough for any box content */
  opacity: 1;
  overflow: visible; /* Allow tooltips to overflow */
  transition: max-height 0.3s ease, opacity 0.2s ease, overflow 0s 0s;
}

/* Remove old ::before labels (replaced by .box-title) */
.intuitionbox::before,
.examplebox::before,
.takeawaybox::before,
.robustnessbox::before,
.assumptionbox::before,
.awarenessbox::before,
.workedexample::before,
.chapterorientationbox::before,
.foundationorientationbox::before {
  content: none;
}

/* Adjust padding for collapsed boxes */
.intuitionbox:not(.box-expanded),
.examplebox:not(.box-expanded),
.takeawaybox:not(.box-expanded),
.robustnessbox:not(.box-expanded),
.assumptionbox:not(.box-expanded),
.awarenessbox:not(.box-expanded),
.workedexample:not(.box-expanded),
.chapterorientationbox:not(.box-expanded),
.foundationorientationbox:not(.box-expanded) {
  padding: 0.75rem 1.2rem;
}

/* Hover effect on title bar */
.box-title:hover {
  opacity: 0.8;
}

/* Mobile: Larger tap target */
@media (max-width: 600px) {
  .box-title {
    padding: 0.75rem 0;
    font-size: 0.95rem;
  }

  .box-chevron {
    font-size: 0.85rem;
  }
}

/* ============================================================
   Foldable Headings (Chapters, Sections, Subsections)
   ============================================================ */

/* Fold arrow indicator */
.heading-fold-arrow {
  display: inline-block;
  font-size: 0.7em;
  margin-left: 0.4em;
  margin-right: 0.3em;
  color: rgba(0,0,0,0.4);
  cursor: pointer;
  transition: transform 0.2s ease, color 0.2s ease;
  user-select: none;
  -webkit-user-select: none;
}

/* Hover effect */
.heading-fold-arrow:hover {
  color: rgba(0,0,0,0.7);
}

/* Rotated state when folded */
.heading-folded .heading-fold-arrow {
  transform: rotate(-90deg);
}

/* Make entire heading clickable and use flexbox for ordering */
h2.foldable-heading,
h3.foldable-heading,
h4.foldable-heading {
  display: inline-flex;
  align-items: baseline;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

/* Hover effect on foldable headings */
h2.foldable-heading:hover,
h3.foldable-heading:hover,
h4.foldable-heading:hover {
  opacity: 0.85;
}

/* Order elements: arrow first, then counter, then text */
.heading-fold-arrow {
  order: -1;
}

h2.foldable-heading::before,
h3.foldable-heading::before,
h4.foldable-heading::before {
  order: 0;
}

.heading-text {
  order: 1;
  margin-left: 0.35em;
}

/* Content that can be folded */
.foldable-content {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease;
}

/* Folded state - hide content */
.heading-folded ~ .foldable-content,
.heading-folded .foldable-content {
  max-height: 0 !important;
  opacity: 0;
  margin: 0;
  padding: 0;
}

/* Expanded state - show content (only when NOT inside a folded heading) */
div:not(.heading-folded) > .foldable-content,
div:not(.heading-folded) ~ div > .foldable-content {
  max-height: none;
  opacity: 1;
}

/* Mobile: Larger tap target for fold arrow */
@media (max-width: 600px) {
  .heading-fold-arrow {
    font-size: 0.8em;
    margin-left: 0.5em;
    margin-right: 0.4em;
  }
}

/* ============================================================
   Foundation Concept Tooltips
   ============================================================ */

/* Tooltip term styling */
.term-with-tooltip {
  color: #3d4a5c !important;
  text-decoration: none !important;
  border-bottom: none !important;
}

/* ============================================================
   Legal Incentives Model Interactive Widget
   ============================================================ */

.legal-incentives-widget {
  margin: 2rem 0;
  padding: 1.5rem;
  background: rgba(0,0,0,0.02);
  border: 1px solid var(--border);
  border-left: 4px solid var(--link);
  border-radius: var(--radius);
}

.widget-header {
  margin-bottom: 1.5rem;
}

.widget-header h4 {
  margin: 0 0 0.5rem 0;
  font-family: var(--sans);
  font-size: 1.1rem;
  font-weight: 700;
  color: rgba(0,0,0,0.85);
}

.widget-subtitle {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(0,0,0,0.6);
  font-style: italic;
}

/* Scenario buttons */
.widget-scenarios {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.scenario-btn {
  padding: 0.5rem 1rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 600;
  background: white;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.scenario-btn:hover {
  background: rgba(0,70,140,0.05);
  border-color: var(--link);
}

.scenario-btn.active {
  background: var(--link);
  color: white;
  border-color: var(--link);
}

/* Control groups */
.widget-controls {
  margin-bottom: 1.5rem;
}

.control-group {
  margin-bottom: 1.5rem;
}

.control-group label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.5rem;
  font-family: var(--sans);
}

.param-label {
  font-weight: 600;
  font-size: 0.95rem;
  color: rgba(0,0,0,0.8);
}

.param-value {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--link);
  font-weight: 700;
}

.param-hint {
  font-size: 0.8rem;
  color: rgba(0,0,0,0.5);
  margin-top: 0.25rem;
  font-style: italic;
}

/* Range sliders */
input[type="range"] {
  width: 100%;
  height: 6px;
  background: rgba(0,0,0,0.1);
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  background: var(--link);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  background: var(--link);
  border-radius: 50%;
  cursor: pointer;
  border: none;
  transition: transform 0.1s;
}

input[type="range"]::-moz-range-thumb:hover {
  transform: scale(1.2);
}

/* Results section */
.widget-results {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
  font-family: var(--sans);
}

.result-label {
  font-weight: 600;
  font-size: 0.95rem;
  color: rgba(0,0,0,0.7);
}

.result-value {
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--link);
}

/* Decision box */
.decision-box {
  padding: 1.25rem;
  border-radius: 6px;
  text-align: center;
  transition: all 0.3s;
}

.decision-box.action-taken {
  background: rgba(0,120,60,0.1);
  border: 2px solid rgba(0,120,60,0.4);
}

.decision-box.action-not-taken {
  background: rgba(180,0,0,0.08);
  border: 2px solid rgba(180,0,0,0.3);
}

.decision-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.decision-text {
  font-family: var(--sans);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.decision-box.action-taken .decision-text {
  color: rgba(0,100,50,0.9);
}

.decision-box.action-not-taken .decision-text {
  color: rgba(140,0,0,0.9);
}

.decision-detail {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: rgba(0,0,0,0.7);
}

/* Mobile responsive */
@media (max-width: 600px) {
  .widget-scenarios {
    flex-direction: column;
  }

  .scenario-btn {
    width: 100%;
  }
}

/* ============================================================
   Activation Mode Toggle
   ============================================================ */

/* TOC Settings Section */
.toc-settings {
  padding: 1rem 1.5rem 0.75rem;
  background: rgba(0,0,0,0.02);
}

.toc-settings-header {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.toc-setting-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-family: var(--sans);
  font-size: 0.95rem;
  padding: 0.5rem 0;
  color: var(--text);
}

.toc-setting-item input[type="checkbox"] {
  cursor: pointer;
  width: 18px;
  height: 18px;
}

.toc-setting-item .setting-label {
  user-select: none;
}

.toc-divider {
  height: 1px;
  background: var(--border);
  margin: 0.75rem 0 1rem;
}

.reset-questions-btn {
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.5rem 0.75rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 4px);
  cursor: pointer;
  transition: all 0.2s;
}

.reset-questions-btn:hover {
  background: rgba(0,0,0,0.03);
  color: var(--text);
  border-color: var(--muted);
}

/* ============================================================
   Structural Sections (Non-analytical, Mandatory)
   ============================================================ */

/* Structural sections are unnumbered, visually distinct landmarks
   that mark mandatory pedagogical interfaces (not analytical content) */

/* Structural section headings (exported as h4 in HTML) */
.structural-section h4,
.structural-section h3 {
  display: flex;
  justify-content: center;
  position: relative;
  font-family: var(--sans);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  width: 100%;
  margin-top: 3.5rem;
  margin-bottom: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  border-bottom: none;
  border-left: none;
  border-right: none;
  background: none;
}

/* Position fold arrow on left for structural sections */
.structural-section h4 .heading-fold-arrow,
.structural-section h3 .heading-fold-arrow {
  position: absolute;
  left: 0;
  order: unset;
}

/* Remove section numbering for structural sections */
.structural-section h4 .section-number-4,
.structural-section h3 .section-number-3 {
  display: none;
}

/* Override CSS counter numbering for structural sections */
.structural-section.outline-4 > h4 { counter-increment: none; }
.structural-section > h4::before,
.structural-section > h3::before {
  content: "" !important;
}



/* Mobile adjustments */
@media (max-width: 600px) {
  .structural-section h4,
  .structural-section h3 {
    font-size: 1.1rem;
    padding-top: 1rem;
    margin: 2.5rem 0 1.25rem 0;
  }
}

/* ============================================================
   Activation Questions
   ============================================================ */

.activation-question {
  margin: 3rem 0;
  padding: 2rem;
  background: rgba(11, 87, 208, 0.03);
  border: 2px solid var(--link);
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.question-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.question-header h4 {
  margin: 0 0 0.5rem 0;
  font-family: var(--sans);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--link);
}

.question-subtitle {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
}

.question-content {
  margin-top: 1.5rem;
}

.question-text {
  font-family: var(--sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.answer-options {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
}

.option-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background: white;
  border: 2px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--sans);
  font-size: 0.95rem;
  line-height: 1.5;
}

.option-label:hover {
  background: rgba(11, 87, 208, 0.05);
  border-color: var(--link);
}

.option-label input[type="radio"] {
  margin-top: 0.25rem;
  cursor: pointer;
  flex-shrink: 0;
}

.option-label input[type="radio"]:disabled {
  cursor: not-allowed;
}

.option-text {
  flex: 1;
}

.check-answer-btn {
  width: 100%;
  padding: 0.875rem 1.5rem;
  background: var(--link);
  color: white;
  border: none;
  border-radius: 8px;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 1rem;
}

.check-answer-btn:hover {
  background: #0a4ab8;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(11, 87, 208, 0.3);
}

.check-answer-btn:disabled {
  background: rgba(0,0,0,0.2);
  cursor: not-allowed;
  transform: none;
}

/* Question Feedback */
.question-feedback {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: 8px;
  background: rgba(0,120,60,0.1);
  border: 2px solid rgba(0,120,60,0.4);
}

.question-feedback.incorrect {
  background: rgba(180,0,0,0.08);
  border: 2px solid rgba(180,0,0,0.3);
}

.feedback-icon-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.feedback-icon {
  font-size: 1.5rem;
}

.feedback-title {
  font-family: var(--sans);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.feedback-explanation {
  font-family: var(--sans);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
  color: var(--text);
}

.feedback-buttons {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.retry-btn,
.continue-btn {
  padding: 0.625rem 1.25rem;
  border-radius: 6px;
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.retry-btn {
  background: white;
  color: var(--text);
  border: 2px solid var(--border);
}

.retry-btn:hover {
  background: var(--soft);
  border-color: var(--link);
}

.continue-btn {
  background: rgba(0,120,60,0.15);
  color: rgba(0,120,60,0.9);
  border: 2px solid rgba(0,120,60,0.3);
}

.continue-btn:hover {
  background: rgba(0,120,60,0.25);
  border-color: rgba(0,120,60,0.5);
}

/* ============================================================
   Locked Content
   ============================================================ */

.locked-content {
  transition: filter 0.3s ease;
}

.locked-content.locked {
  position: relative;
  filter: blur(4px);
  pointer-events: none;
  user-select: none;
  min-height: 200px;
}

.locked-content.locked::before {
  content: '🔒 Complete the activation question above to unlock this content';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(255,255,255,0.98);
  padding: 1.5rem 2rem;
  border-radius: 12px;
  border: 3px solid var(--link);
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  filter: none;
  z-index: 10;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  max-width: 400px;
  line-height: 1.5;
}

/* Hide locked content overlay when not in activation mode */
body:not(.activation-mode) .locked-content.locked::before {
  display: none;
}

body:not(.activation-mode) .locked-content.locked {
  filter: none;
  pointer-events: auto;
  user-select: auto;
}

/* ============================================================
   Exam Questions
   Collapsible exam questions with nested subboxes
   ============================================================ */

.exam-question {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 1.5rem 0;
  background: rgba(0,120,60,0.04);
  border-left: 5px solid rgba(0,120,60,0.50);
  box-shadow: var(--shadow);
}

.exam-question-header {
  padding: 1rem 1.25rem;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: background 0.2s;
}

.exam-question-header:hover {
  background: rgba(0,0,0,0.03);
}

.exam-question-arrow {
  font-size: 0.85rem;
  color: var(--muted);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.exam-question-title {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text);
}

.exam-question-content {
  padding: 0 1.25rem 1.25rem;
}

.exam-question-text {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

/* Exam subboxes (How to answer, Example solution) */
.exam-subbox {
  margin: 1rem 0;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
  background: var(--bg);
}

.exam-subbox-header {
  padding: 0.75rem 1rem;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  transition: background 0.2s;
  border-bottom: 1px solid transparent;
}

.exam-subbox-header:hover {
  background: rgba(0,0,0,0.025);
}

.exam-subbox-arrow {
  font-size: 0.75rem;
  color: var(--muted);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.exam-subbox-title {
  font-family: var(--sans);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text);
}

.exam-subbox-content {
  padding: 1rem;
}

/* Differentiate subbox types */
.exam-subbox.good-answer {
  border-left: 3px solid rgba(0,80,160,0.45);
}

.exam-subbox.example-solution {
  border-left: 3px solid rgba(184,134,11,0.55);
}

.exam-subbox.good-answer .exam-subbox-header {
  background: rgba(0,80,160,0.03);
}

.exam-subbox.example-solution .exam-subbox-header {
  background: rgba(184,134,11,0.05);
}

/* Custom confirmation dialog for exam questions */
.exam-confirm-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.2s;
}

.exam-confirm-overlay.active {
  opacity: 1;
}

.exam-confirm-dialog {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  transform: scale(0.95);
  transition: transform 0.2s;
}

.exam-confirm-overlay.active .exam-confirm-dialog {
  transform: scale(1);
}

.exam-confirm-message {
  font-family: var(--sans);
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

.exam-confirm-buttons {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

.exam-confirm-btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: calc(var(--radius) - 2px);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.exam-confirm-yes {
  background: #0b57d0;
  color: white;
}

.exam-confirm-yes:hover {
  background: #0842a0;
}

.exam-confirm-no {
  background: var(--soft);
  color: var(--text);
  border: 1px solid var(--border);
}

.exam-confirm-no:hover {
  background: rgba(0,0,0,0.08);
}

/* Mobile responsive */
@media (max-width: 600px) {
  .activation-question {
    padding: 1.5rem;
  }

  .question-text {
    font-size: 1rem;
  }

  .option-label {
    font-size: 0.9rem;
  }
}