/* Custom CSS for wider content display */

/* DIAGNOSTIC CANARY — scoped to inv-4-4 only. Remove after testing.
   If you see a red bar at the top of the inv-4-4 page on Runestone,
   this CSS file IS being loaded. 
#investigation4-4 { border-top: 10px solid red !important; }
*/

/* Keep content area at PreTeXt default width (696px) for readability.
   Allow interactive elements to overflow the content area into the wider page. */
.ptx-main .ptx-content {
    max-width: 696px !important;
    overflow: visible !important;
}

/* Non-interactive figures stay at content width */
figure {
    max-width: 696px !important;
    margin-left: auto;
    margin-right: auto;
}


/* Specifically target iframes to be much wider */
/* Override PreTeXt's .interactive-iframe-container which constrains iframes */
.interactive-iframe-container {
    max-width: none !important;
    width: 1000px !important;
    overflow: visible !important;
}

.interactive-iframe-container > iframe,
.ptx-content section > iframe,
.ptx-content .paragraphs > iframe {
    max-width: 1400px !important;
    width: 100% !important;
    min-height: 600px;
}

/* Allow content sections containing wide iframes to overflow */
.ptx-content section:has(> iframe) {
    overflow: visible !important;
}


/* Custom styling for convention elements */
.ptx-content article.convention {
    background-color: #f0f8ff !important; /* light blue background */
    border-left: 4px solid #4682b4 !important; /* steel blue left border */
    padding: 1em !important;
    margin: 1em 0 !important;
}

.ptx-content article.convention .heading {
    color: #4682b4 !important;
    font-weight: bold !important;
}

/* Keep hint/solution dropdown rows visually compact like inv 3-9 */
.ptx-content details.hint.solution-like {
    margin-top: 0.15em !important;
    margin-bottom: 0.15em !important;
}

.ptx-content details.hint.solution-like + details.hint.solution-like {
    margin-top: 0 !important;
}

.ptx-content section.paragraphs > details.hint.solution-like {
    margin-top: 0.15em !important;
    margin-bottom: 0.15em !important;
}

.ptx-content section.paragraphs > details.hint.solution-like + details.hint.solution-like {
    margin-top: 0 !important;
}

/* Chapter 4 section-wrapper pages: hide auto 'Chapter N' prefix before section titles */
#chapter4-1 > h2.heading > .type,
#chapter4-1 > h2.heading > .codenumber,
#chapter4-1 > h2.heading > .heading-divison-mark__space,
#chapter4-2 > h2.heading > .type,
#chapter4-2 > h2.heading > .codenumber,
#chapter4-2 > h2.heading > .heading-divison-mark__space,
#chapter4-3 > h2.heading > .type,
#chapter4-3 > h2.heading > .codenumber,
#chapter4-3 > h2.heading > .heading-divison-mark__space,
#chapter4-4 > h2.heading > .type,
#chapter4-4 > h2.heading > .codenumber,
#chapter4-4 > h2.heading > .heading-divison-mark__space {
    display: none !important;
}

/* Reduce spacing after sidebyside elements */
.ptx-content .sidebyside {
    margin-bottom: 0.5em !important;
}

/* Make interactive figures break out of normal content width */
figure.figure-like:has(.interactive) {
    max-width: none !important;
    width: 1000px !important;
    overflow: visible !important;
}

/* Sticky/Floating Applet Styles */
.sticky-applet-container {
    position: relative;
}

.sticky-applet-container.is-sticky .interactive {
    position: fixed;
    top: 60px;
    right: 20px;
    width: 500px;
    height: 400px;
    z-index: 1000;
    background: white;
    border: 2px solid #4682b4;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
}

.sticky-applet-container.is-sticky .interactive iframe {
    width: 100%;
    height: 100%;
    border-radius: 6px;
}

.sticky-applet-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1001;
    background: #4682b4;
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: bold;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    display: none;
}

.sticky-applet-toggle:hover {
    background: #5a9bd4;
}

.sticky-applet-toggle.show {
    display: block;
    margin-right: auto !important;
}

/* Removed section padding that was causing unwanted indentation */

/* Scale down Random Babies applet to 50% so everything is visible */
#random-babies-applet,
.ptx-content #random-babies-applet,
div[id="random-babies-applet"] {
    max-width: 100% !important;
    width: 100% !important;
    margin-left: auto !important;
    margin-right: auto !important;
    overflow: hidden !important;
    transform-origin: top center !important;
}

#random-babies-applet iframe,
.ptx-content #random-babies-applet iframe,
div[id="random-babies-applet"] iframe {
    transform: scale(0.5) !important;
    transform-origin: top center !important;
    width: 200% !important; /* Compensate for 0.5 scale */
    height: 1600px !important;
    max-width: none !important;
    border: 1px solid #ccc !important;
}

/* inv 5-1 chi-squared worked formula: slightly smaller display math for fit. */
#inv5-1-k mjx-container[display="true"],
#inv5-1-k .mjx-container[display="true"] {
    font-size: 78% !important;
    margin-top: 0.2em !important;
    margin-bottom: 0.2em !important;
}

/* Global inline-math sizing: slightly reduce inline equations to improve fit. */
.ptx-content mjx-container:not([display="true"]),
.ptx-content .mjx-container:not([display="true"]) {
    font-size: 0.92em !important;
}

/* Colored backgrounds for definitions, remarks, and assemblages */
.definition-like {
    background-color: #e8f4f8 !important;
    border-left: 4px solid #4a90a4 !important;
    padding: 1em !important;
    border-radius: 4px !important;
    margin-bottom: 1em !important;
}

.remark-like {
    background-color: #fff4e6 !important;
    border-left: 4px solid #ff9800 !important;
    padding: 1em !important;
    border-radius: 4px !important;
    margin-bottom: 1em !important;
}

/* Default assemblage style - light blue for definitions */
.assemblage-like {
    --assemblage-like-body-background: #e8f4f8 !important;
    --assemblage-like-border-color: #4a90a4 !important;
    background-color: #e8f4f8 !important;
    border-left: 4px solid #4a90a4 !important;
    padding: 1em !important;
    border-radius: 4px !important;
    margin-bottom: 1em !important;
}

/* Terminology Detour assemblages - use default blue (no override needed) */
/* These assemblages inherit the default .assemblage-like blue styling */

/* Technology Detour assemblages - blue-purple */
.ptx-content article.assemblage.assemblage-like[id^="tech-detour"] {
    --assemblage-like-body-background: #E5DFEC !important;
    --assemblage-like-border-color: #7B68AE !important;
    background-color: #E5DFEC !important;
    border-left: 4px solid #7B68AE !important;
}


.ptx-content article.assemblage.assemblage-like[id^="tech-detour"] * {
    --assemblage-like-body-background: #E5DFEC !important;
    --assemblage-like-border-color: #7B68AE !important;
    background-color: #E5DFEC !important;
}

/* Inv 4.2 tech-detours exercise (Q14) styled to match purple detour boxes. */
.ptx-content article.exercise.exercise-like#inv4-2-tech {
    background-color: #E5DFEC !important;
    border-left: 4px solid #7B68AE !important;
    border-radius: 4px !important;
    padding: 1em !important;
    margin-bottom: 1em !important;
}

/* Study Conclusions assemblages - light green */
.ptx-content article.assemblage.assemblage-like[id^="study-conclusions"],
.ptx-content article.assemblage.assemblage-like[id*="study-conclusions"] {
    --assemblage-like-body-background: #E8F5E9 !important;
    --assemblage-like-border-color: #66BB6A !important;
    background-color: #E8F5E9 !important;
    border-left: 4px solid #66BB6A !important;
}

.ptx-content article.assemblage.assemblage-like[id^="study-conclusions"] *,
.ptx-content article.assemblage.assemblage-like[id*="study-conclusions"] * {
    --assemblage-like-body-background: #E8F5E9 !important;
    --assemblage-like-border-color: #66BB6A !important;
    background-color: #E8F5E9 !important;
}

/* Probability Detour assemblages - light tan */
.ptx-content article.assemblage.assemblage-like[id^="probability-detour"] {
    --assemblage-like-body-background: #F5E6D3 !important;
    --assemblage-like-border-color: #C9B59A !important;
    background-color: #F5E6D3 !important;
    border-left: 4px solid #C9B59A !important;
}

.ptx-content article.assemblage.assemblage-like[id^="probability-detour"] * {
    --assemblage-like-body-background: #F5E6D3 !important;
    --assemblage-like-border-color: #C9B59A !important;
    background-color: #F5E6D3 !important;
}

/* Summary Exact Binomial assemblages - salmon */
.ptx-content article.assemblage.assemblage-like[id^="summary-exact-binomial"] {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like[id^="summary-exact-binomial"] * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Two-sample t procedure summary assemblage - salmon. */
.ptx-content article.assemblage.assemblage-like#two-sample-t-procedures,
.ptx-content article.assemblage.assemblage-like[id^="two-sample-t-procedures"] {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like#two-sample-t-procedures *,
.ptx-content article.assemblage.assemblage-like[id^="two-sample-t-procedures"] * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Summary 1.8 assemblage - salmon (match summary exact binomial). */
.ptx-content article.assemblage.assemblage-like#summary-one-proportion-z-test,
.ptx-content #summary1-8 article.assemblage.assemblage-like {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like#summary-one-proportion-z-test *,
.ptx-content #summary1-8 article.assemblage.assemblage-like * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Summary z-procedures assemblages (ch1 section 1.3) - salmon. */
.ptx-content #summary-z-procedures article.assemblage.assemblage-like,
.ptx-content article.assemblage.assemblage-like[id^="summary-z-procedures"] {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content #summary-z-procedures article.assemblage.assemblage-like *,
.ptx-content article.assemblage.assemblage-like[id^="summary-z-procedures"] * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Summary two-proportion z-test assemblages (ch3) - salmon. */
.ptx-content article.assemblage.assemblage-like[id^="summary-two-proportion"] {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like[id^="summary-two-proportion"] * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Summary relative risk assemblage (ch3) - salmon. */
.ptx-content article.assemblage.assemblage-like[id^="summary-relative-risk"] {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like[id^="summary-relative-risk"] * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Summary odds ratio assemblage (ch3) - salmon. */
.ptx-content article.assemblage.assemblage-like[id^="summary-odds-ratio"] {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like[id^="summary-odds-ratio"] * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Probability detour in normal vars section - light tan (match existing detour tan). */
.ptx-content article.assemblage.assemblage-like#prob-detour-normal-random-vars,
.ptx-content #prob-detour-normal-vars article.assemblage.assemblage-like {
    --assemblage-like-body-background: #F5E6D3 !important;
    --assemblage-like-border-color: #C9B59A !important;
    background-color: #F5E6D3 !important;
    border-left: 4px solid #C9B59A !important;
}

.ptx-content article.assemblage.assemblage-like#prob-detour-normal-random-vars *,
.ptx-content #prob-detour-normal-vars article.assemblage.assemblage-like * {
    --assemblage-like-body-background: #F5E6D3 !important;
    --assemblage-like-border-color: #C9B59A !important;
    background-color: #F5E6D3 !important;
}

/* Force asides to stay in main content area, not margin */
.ptx-content aside.aside-like {
    float: none !important;
    width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
    max-width: 100% !important;
}

/* Keep aside summary headings compact when rendered as knowls */
.ptx-content details.aside-like > summary h2.heading {
    font-size: 1rem !important;
    line-height: 1.3 !important;
    margin: 0 !important;
}

/* Horizontal rule style for separating sections */
.ptx-content p.horizontal-rule {
    border-top: 2px solid #999 !important;
    margin: 2em 0 !important;
    padding: 0 !important;
    height: 0 !important;
    line-height: 0 !important;
    font-size: 0 !important;
}

/* Remove background and border from Investigation 1.3 Exercise 1 */
.ptx-content #I1-3-1,
.ptx-content article#I1-3-1,
.ptx-content .exercise-like#I1-3-1,
article.exercise-like#I1-3-1 {
    background: none !important;
    background-color: transparent !important;
    border: none !important;
    border-left: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    padding-left: 0 !important;
}

.ptx-content #I1-3-1 .exercise-statement,
.ptx-content #I1-3-1 > * {
    background: none !important;
    background-color: transparent !important;
    border: none !important;
}

/* Add padding to table cells to prevent text from touching borders */
.ptx-content table td,
.ptx-content table th {
    padding: 0.4em 0.6em !important;
}

/* I5.5A practice table: hide borders only for intentionally blank middle cells (Judge 3-6). */
#practice-5-5a-judge-table td:nth-child(n+3):nth-child(-n+6):empty,
.ptx-content #practice-5-5a-judge-table td:nth-child(n+3):nth-child(-n+6):empty {
    border: none !important;
}

/* Keep Judge 7 fully bordered, including the left border in rows where Judge 6 is blank. */
#practice-5-5a-judge-table th:nth-child(7),
#practice-5-5a-judge-table td:nth-child(7),
.ptx-content #practice-5-5a-judge-table th:nth-child(7),
.ptx-content #practice-5-5a-judge-table td:nth-child(7) {
    border-left: 1px solid #222 !important;
    border-right: 1px solid #222 !important;
}

/* I5.4.i fill-in table: force fit inside content box (target actual rendered id). */
article#I5-4-i,
article#inv5-4-i,
article#I5\.4\.i {
    overflow-x: auto !important;
}

article#I5-4-i .ptx-runestone-container,
article#I5-4-i .runestone.fillintheblank_section,
article#I5-4-i .tabular-box,
article#I5-4-i .tabular-box.natural-width,
article#I5-4-i table.tabular,
article#I5-4-i [data-component="fillintheblank"],
article#I5-4-i [data-component="fillintheblank"] .tabular-box,
article#I5-4-i [data-component="fillintheblank"] table.tabular,
article#inv5-4-i .ptx-runestone-container,
article#I5\.4\.i .runestone.fillintheblank_section,
article#inv5-4-i .runestone.fillintheblank_section {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    overflow-x: auto !important;
    box-sizing: border-box !important;
}

article#I5-4-i .tabular-box,
article#I5-4-i .tabular-box.natural-width,
article#I5-4-i table.tabular,
article#inv5-4-i .tabular-box,
article#I5\.4\.i table.tabular,
article#inv5-4-i table.tabular {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    table-layout: fixed !important;
    box-sizing: border-box !important;
}

article#I5-4-i table.tabular th,
article#I5-4-i table.tabular td,
article#I5-4-i [data-component="fillintheblank"] table.tabular th,
article#I5-4-i [data-component="fillintheblank"] table.tabular td,
article#I5\.4\.i table.tabular th,
article#I5\.4\.i table.tabular td,
article#inv5-4-i table.tabular th,
article#inv5-4-i table.tabular td {
    padding: 0.3em 0.35em !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
}

article#I5-4-i table.tabular th,
article#I5-4-i [data-component="fillintheblank"] table.tabular th,
article#I5\.4\.i table.tabular th,
article#inv5-4-i table.tabular th {
    font-size: 0.88em !important;
}

article#I5-4-i .runestone.fillintheblank_section input,
article#I5-4-i .runestone.fillintheblank_section .form-control,
article#I5-4-i [data-component="fillintheblank"] input,
article#I5-4-i [data-component="fillintheblank"] .form-control,
article#I5-4-i input[size="8"],
article#I5\.4\.i .runestone.fillintheblank_section input,
article#I5\.4\.i .runestone.fillintheblank_section .form-control,
article#inv5-4-i .runestone.fillintheblank_section input,
article#inv5-4-i .runestone.fillintheblank_section .form-control {
    width: 5.2ch !important;
    min-width: 0 !important;
    max-width: 5.2ch !important;
    padding-left: 0.4em !important;
    padding-right: 0.4em !important;
    box-sizing: border-box !important;
}

/* inv5-4-i stats table: id-scoped fallback to ensure the fill-in table fits within the question box. */
#inv5-4-i-stats-table,
.ptx-content #inv5-4-i-stats-table {
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: auto !important;
    box-sizing: border-box !important;
}

#inv5-4-i-stats-table table.tabular,
.ptx-content #inv5-4-i-stats-table table.tabular {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    table-layout: fixed !important;
    box-sizing: border-box !important;
}

#inv5-4-i-stats-table table.tabular th,
#inv5-4-i-stats-table table.tabular td,
.ptx-content #inv5-4-i-stats-table table.tabular th,
.ptx-content #inv5-4-i-stats-table table.tabular td {
    padding: 0.22em 0.28em !important;
    font-size: 0.92em !important;
    white-space: normal !important;
    overflow-wrap: anywhere !important;
}

#inv5-4-i-stats-table input,
#inv5-4-i-stats-table .form-control,
.ptx-content #inv5-4-i-stats-table input,
.ptx-content #inv5-4-i-stats-table .form-control {
    width: 100% !important;
    min-width: 0 !important;
    max-width: 5.2ch !important;
    font-size: 0.95em !important;
    padding-left: 0.3em !important;
    padding-right: 0.3em !important;
    box-sizing: border-box !important;
}

/* Hide exercises division headings that duplicate the section title (e.g., main investigation headings).
   Use :not() to KEEP headings visible for special exercises blocks like Probability Detour and Back to Elephants. */
section.exercises:not(#prob-detour-two-means):not(#elephants-continued) > h3.heading.hide-type {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    max-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    line-height: 0 !important;
    font-size: 0 !important;
    opacity: 0 !important;
}

/* Blockquote styling - italic serif for journal excerpts */
.ptx-content blockquote {
    font-family: Georgia, "Times New Roman", serif !important;
    font-style: italic !important;
    border-left: 3px solid #999 !important;
    padding-left: 1.2em !important;
    margin: 1em 2em !important;
    color: #333 !important;
}

/* Hide full chapter prefix ("Chapter" and number) only for Chapter 1 page. */
.ptx-content section.chapter#chapter1 > .heading > span.type,
.ptx-content section.chapter#chapter1 > .heading > span.codenumber,
.ptx-content section.chapter#chapter1 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter1 > .heading > span.codenumber + span.space,
section.chapter#chapter1 > .heading > span.type,
section.chapter#chapter1 > .heading > span.codenumber,
section.chapter#chapter1 > .heading > span.type + span.space,
section.chapter#chapter1 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter1 > h1.heading > span.type,
main .ptx-content section.chapter#chapter1 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter1 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter1 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter1 > h2.heading > span.type,
main .ptx-content section.chapter#chapter1 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter1 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter1 > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide auto section numbers in Chapter 1 landing-page summary links only. */
.ptx-content section.chapter#chapter1 > nav.summary-links span.codenumber {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter2 landing page title. */
.ptx-content section.chapter#chapter2 > .heading > span.type,
.ptx-content section.chapter#chapter2 > .heading > span.codenumber,
.ptx-content section.chapter#chapter2 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter2 > .heading > span.codenumber + span.space,
section.chapter#chapter2 > .heading > span.type,
section.chapter#chapter2 > .heading > span.codenumber,
section.chapter#chapter2 > .heading > span.type + span.space,
section.chapter#chapter2 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter2 > h1.heading > span.type,
main .ptx-content section.chapter#chapter2 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter2 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter2 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter2 > h2.heading > span.type,
main .ptx-content section.chapter#chapter2 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter2 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter2 > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Extra-robust chapter2 heading hide in case structure varies by target/template. */
#chapter2 h1.heading > span.type,
#chapter2 h1.heading > span.codenumber,
#chapter2 h1.heading > span.type + span.space,
#chapter2 h1.heading > span.codenumber + span.space,
#chapter2 h2.heading > span.type,
#chapter2 h2.heading > span.codenumber,
#chapter2 h2.heading > span.type + span.space,
#chapter2 h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter3 landing page title. */
.ptx-content section.chapter#chapter3 > .heading > span.type,
.ptx-content section.chapter#chapter3 > .heading > span.codenumber,
.ptx-content section.chapter#chapter3 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter3 > .heading > span.codenumber + span.space,
section.chapter#chapter3 > .heading > span.type,
section.chapter#chapter3 > .heading > span.codenumber,
section.chapter#chapter3 > .heading > span.type + span.space,
section.chapter#chapter3 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter3 > h1.heading > span.type,
main .ptx-content section.chapter#chapter3 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter3 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter3 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter3 > h2.heading > span.type,
main .ptx-content section.chapter#chapter3 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter3 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter3 > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Extra-robust chapter3 heading hide in case structure varies by target/template. */
#chapter3 h1.heading > span.type,
#chapter3 h1.heading > span.codenumber,
#chapter3 h1.heading > span.type + span.space,
#chapter3 h1.heading > span.codenumber + span.space,
#chapter3 h2.heading > span.type,
#chapter3 h2.heading > span.codenumber,
#chapter3 h2.heading > span.type + span.space,
#chapter3 h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Ultra-specific fallback for chapter3 heading prefix hide. */
section#chapter3.chapter > h2.heading > span.type,
section#chapter3.chapter > h2.heading > span.codenumber,
section#chapter3.chapter > h2.heading > span.type + span.space,
section#chapter3.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter3-intro page title. */
.ptx-content section.chapter#chapter3-intro > .heading > span.type,
.ptx-content section.chapter#chapter3-intro > .heading > span.codenumber,
.ptx-content section.chapter#chapter3-intro > .heading > span.type + span.space,
.ptx-content section.chapter#chapter3-intro > .heading > span.codenumber + span.space,
section.chapter#chapter3-intro > .heading > span.type,
section.chapter#chapter3-intro > .heading > span.codenumber,
section.chapter#chapter3-intro > .heading > span.type + span.space,
section.chapter#chapter3-intro > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter3-intro > h1.heading > span.type,
main .ptx-content section.chapter#chapter3-intro > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter3-intro > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter3-intro > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter3-intro > h2.heading > span.type,
main .ptx-content section.chapter#chapter3-intro > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter3-intro > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter3-intro > h2.heading > span.codenumber + span.space,
#chapter3-intro h1.heading > span.type,
#chapter3-intro h1.heading > span.codenumber,
#chapter3-intro h1.heading > span.type + span.space,
#chapter3-intro h1.heading > span.codenumber + span.space,
#chapter3-intro h2.heading > span.type,
#chapter3-intro h2.heading > span.codenumber,
#chapter3-intro h2.heading > span.type + span.space,
#chapter3-intro h2.heading > span.codenumber + span.space,
section#chapter3-intro.chapter > h2.heading > span.type,
section#chapter3-intro.chapter > h2.heading > span.codenumber,
section#chapter3-intro.chapter > h2.heading > span.type + span.space,
section#chapter3-intro.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter3-1 page title (section 3.1 wrapper). */
.ptx-content section.chapter#chapter3-1 > .heading > span.type,
.ptx-content section.chapter#chapter3-1 > .heading > span.codenumber,
.ptx-content section.chapter#chapter3-1 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter3-1 > .heading > span.codenumber + span.space,
section.chapter#chapter3-1 > .heading > span.type,
section.chapter#chapter3-1 > .heading > span.codenumber,
section.chapter#chapter3-1 > .heading > span.type + span.space,
section.chapter#chapter3-1 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter3-1 > h2.heading > span.type,
main .ptx-content section.chapter#chapter3-1 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter3-1 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter3-1 > h2.heading > span.codenumber + span.space,
#chapter3-1 h2.heading > span.type,
#chapter3-1 h2.heading > span.codenumber,
#chapter3-1 h2.heading > span.type + span.space,
#chapter3-1 h2.heading > span.codenumber + span.space,
section#chapter3-1.chapter > h2.heading > span.type,
section#chapter3-1.chapter > h2.heading > span.codenumber,
section#chapter3-1.chapter > h2.heading > span.type + span.space,
section#chapter3-1.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix for chapter3-2 and chapter3-3 page titles. */
#chapter3-2 h2.heading span.type, #chapter3-2 h2.heading span.codenumber, #chapter3-2 h2.heading span.space,
#chapter3-3 h2.heading span.type, #chapter3-3 h2.heading span.codenumber, #chapter3-3 h2.heading span.space,
section#chapter3-2.chapter > h2.heading > span.type,
section#chapter3-2.chapter > h2.heading > span.codenumber,
section#chapter3-2.chapter > h2.heading > span.type + span.space,
section#chapter3-2.chapter > h2.heading > span.codenumber + span.space,
section#chapter3-3.chapter > h2.heading > span.type,
section#chapter3-3.chapter > h2.heading > span.codenumber,
section#chapter3-3.chapter > h2.heading > span.type + span.space,
section#chapter3-3.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter1-wrap-up page title. */
.ptx-content section.chapter#chapter1-wrap-up > .heading > span.type,
.ptx-content section.chapter#chapter1-wrap-up > .heading > span.codenumber,
.ptx-content section.chapter#chapter1-wrap-up > .heading > span.type + span.space,
.ptx-content section.chapter#chapter1-wrap-up > .heading > span.codenumber + span.space,
section.chapter#chapter1-wrap-up > .heading > span.type,
section.chapter#chapter1-wrap-up > .heading > span.codenumber,
section.chapter#chapter1-wrap-up > .heading > span.type + span.space,
section.chapter#chapter1-wrap-up > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter1-wrap-up > h1.heading > span.type,
main .ptx-content section.chapter#chapter1-wrap-up > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter1-wrap-up > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter1-wrap-up > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter1-wrap-up > h2.heading > span.type,
main .ptx-content section.chapter#chapter1-wrap-up > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter1-wrap-up > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter1-wrap-up > h2.heading > span.codenumber + span.space,
#chapter1-wrap-up h1.heading > span.type,
#chapter1-wrap-up h1.heading > span.codenumber,
#chapter1-wrap-up h1.heading > span.type + span.space,
#chapter1-wrap-up h1.heading > span.codenumber + span.space,
#chapter1-wrap-up h2.heading > span.type,
#chapter1-wrap-up h2.heading > span.codenumber,
#chapter1-wrap-up h2.heading > span.type + span.space,
#chapter1-wrap-up h2.heading > span.codenumber + span.space,
section#chapter1-wrap-up.chapter > h2.heading > span.type,
section#chapter1-wrap-up.chapter > h2.heading > span.codenumber,
section#chapter1-wrap-up.chapter > h2.heading > span.type + span.space,
section#chapter1-wrap-up.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter4-wrap-up page title. */
.ptx-content section.chapter#chapter4-wrap-up > .heading > span.type,
.ptx-content section.chapter#chapter4-wrap-up > .heading > span.codenumber,
.ptx-content section.chapter#chapter4-wrap-up > .heading > span.type + span.space,
.ptx-content section.chapter#chapter4-wrap-up > .heading > span.codenumber + span.space,
section.chapter#chapter4-wrap-up > .heading > span.type,
section.chapter#chapter4-wrap-up > .heading > span.codenumber,
section.chapter#chapter4-wrap-up > .heading > span.type + span.space,
section.chapter#chapter4-wrap-up > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter4-wrap-up > h1.heading > span.type,
main .ptx-content section.chapter#chapter4-wrap-up > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter4-wrap-up > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter4-wrap-up > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter4-wrap-up > h2.heading > span.type,
main .ptx-content section.chapter#chapter4-wrap-up > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter4-wrap-up > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter4-wrap-up > h2.heading > span.codenumber + span.space,
#chapter4-wrap-up h1.heading > span.type,
#chapter4-wrap-up h1.heading > span.codenumber,
#chapter4-wrap-up h1.heading > span.type + span.space,
#chapter4-wrap-up h1.heading > span.codenumber + span.space,
#chapter4-wrap-up h2.heading > span.type,
#chapter4-wrap-up h2.heading > span.codenumber,
#chapter4-wrap-up h2.heading > span.type + span.space,
#chapter4-wrap-up h2.heading > span.codenumber + span.space,
section#chapter4-wrap-up.chapter > h2.heading > span.type,
section#chapter4-wrap-up.chapter > h2.heading > span.codenumber,
section#chapter4-wrap-up.chapter > h2.heading > span.type + span.space,
section#chapter4-wrap-up.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter2-intro page title. */
.ptx-content section.chapter#chapter2-intro > .heading > span.type,
.ptx-content section.chapter#chapter2-intro > .heading > span.codenumber,
.ptx-content section.chapter#chapter2-intro > .heading > span.type + span.space,
.ptx-content section.chapter#chapter2-intro > .heading > span.codenumber + span.space,
section.chapter#chapter2-intro > .heading > span.type,
section.chapter#chapter2-intro > .heading > span.codenumber,
section.chapter#chapter2-intro > .heading > span.type + span.space,
section.chapter#chapter2-intro > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter2-intro > h1.heading > span.type,
main .ptx-content section.chapter#chapter2-intro > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter2-intro > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter2-intro > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter2-intro > h2.heading > span.type,
main .ptx-content section.chapter#chapter2-intro > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter2-intro > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter2-intro > h2.heading > span.codenumber + span.space,
#chapter2-intro h1.heading > span.type,
#chapter2-intro h1.heading > span.codenumber,
#chapter2-intro h1.heading > span.type + span.space,
#chapter2-intro h1.heading > span.codenumber + span.space,
#chapter2-intro h2.heading > span.type,
#chapter2-intro h2.heading > span.codenumber,
#chapter2-intro h2.heading > span.type + span.space,
#chapter2-intro h2.heading > span.codenumber + span.space,
section#chapter2-intro.chapter > h2.heading > span.type,
section#chapter2-intro.chapter > h2.heading > span.codenumber,
section#chapter2-intro.chapter > h2.heading > span.type + span.space,
section#chapter2-intro.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter1-intro page title. */
.ptx-content section.chapter#chapter1-intro > .heading > span.type,
.ptx-content section.chapter#chapter1-intro > .heading > span.codenumber,
.ptx-content section.chapter#chapter1-intro > .heading > span.type + span.space,
.ptx-content section.chapter#chapter1-intro > .heading > span.codenumber + span.space,
section.chapter#chapter1-intro > .heading > span.type,
section.chapter#chapter1-intro > .heading > span.codenumber,
section.chapter#chapter1-intro > .heading > span.type + span.space,
section.chapter#chapter1-intro > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter1-intro > h1.heading > span.type,
main .ptx-content section.chapter#chapter1-intro > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter1-intro > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter1-intro > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter1-intro > h2.heading > span.type,
main .ptx-content section.chapter#chapter1-intro > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter1-intro > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter1-intro > h2.heading > span.codenumber + span.space,
#chapter1-intro h1.heading > span.type,
#chapter1-intro h1.heading > span.codenumber,
#chapter1-intro h1.heading > span.type + span.space,
#chapter1-intro h1.heading > span.codenumber + span.space,
#chapter1-intro h2.heading > span.type,
#chapter1-intro h2.heading > span.codenumber,
#chapter1-intro h2.heading > span.type + span.space,
#chapter1-intro h2.heading > span.codenumber + span.space,
section#chapter1-intro.chapter > h2.heading > span.type,
section#chapter1-intro.chapter > h2.heading > span.codenumber,
section#chapter1-intro.chapter > h2.heading > span.type + span.space,
section#chapter1-intro.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter5-intro page title. */
.ptx-content section.chapter#chapter5-intro > .heading > span.type,
.ptx-content section.chapter#chapter5-intro > .heading > span.codenumber,
.ptx-content section.chapter#chapter5-intro > .heading > span.type + span.space,
.ptx-content section.chapter#chapter5-intro > .heading > span.codenumber + span.space,
section.chapter#chapter5-intro > .heading > span.type,
section.chapter#chapter5-intro > .heading > span.codenumber,
section.chapter#chapter5-intro > .heading > span.type + span.space,
section.chapter#chapter5-intro > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-intro > h1.heading > span.type,
main .ptx-content section.chapter#chapter5-intro > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-intro > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-intro > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-intro > h2.heading > span.type,
main .ptx-content section.chapter#chapter5-intro > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-intro > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-intro > h2.heading > span.codenumber + span.space,
#chapter5-intro h1.heading > span.type,
#chapter5-intro h1.heading > span.codenumber,
#chapter5-intro h1.heading > span.type + span.space,
#chapter5-intro h1.heading > span.codenumber + span.space,
#chapter5-intro h2.heading > span.type,
#chapter5-intro h2.heading > span.codenumber,
#chapter5-intro h2.heading > span.type + span.space,
#chapter5-intro h2.heading > span.codenumber + span.space,
section#chapter5-intro.chapter > h2.heading > span.type,
section#chapter5-intro.chapter > h2.heading > span.codenumber,
section#chapter5-intro.chapter > h2.heading > span.type + span.space,
section#chapter5-intro.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter5-1 page title. */
.ptx-content section.chapter#chapter5-1 > .heading > span.type,
.ptx-content section.chapter#chapter5-1 > .heading > span.codenumber,
.ptx-content section.chapter#chapter5-1 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter5-1 > .heading > span.codenumber + span.space,
section.chapter#chapter5-1 > .heading > span.type,
section.chapter#chapter5-1 > .heading > span.codenumber,
section.chapter#chapter5-1 > .heading > span.type + span.space,
section.chapter#chapter5-1 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-1 > h1.heading > span.type,
main .ptx-content section.chapter#chapter5-1 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-1 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-1 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-1 > h2.heading > span.type,
main .ptx-content section.chapter#chapter5-1 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-1 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-1 > h2.heading > span.codenumber + span.space,
#chapter5-1 h1.heading > span.type,
#chapter5-1 h1.heading > span.codenumber,
#chapter5-1 h1.heading > span.type + span.space,
#chapter5-1 h1.heading > span.codenumber + span.space,
#chapter5-1 h2.heading > span.type,
#chapter5-1 h2.heading > span.codenumber,
#chapter5-1 h2.heading > span.type + span.space,
#chapter5-1 h2.heading > span.codenumber + span.space,
section#chapter5-1.chapter > h2.heading > span.type,
section#chapter5-1.chapter > h2.heading > span.codenumber,
section#chapter5-1.chapter > h2.heading > span.type + span.space,
section#chapter5-1.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for section5-1-intro page title. */
.ptx-content section#section5-1-intro > .heading > span.type,
.ptx-content section#section5-1-intro > .heading > span.codenumber,
.ptx-content section#section5-1-intro > .heading > span.type + span.space,
.ptx-content section#section5-1-intro > .heading > span.codenumber + span.space,
section#section5-1-intro > .heading > span.type,
section#section5-1-intro > .heading > span.codenumber,
section#section5-1-intro > .heading > span.type + span.space,
section#section5-1-intro > .heading > span.codenumber + span.space,
main .ptx-content section#section5-1-intro > h1.heading > span.type,
main .ptx-content section#section5-1-intro > h1.heading > span.codenumber,
main .ptx-content section#section5-1-intro > h1.heading > span.type + span.space,
main .ptx-content section#section5-1-intro > h1.heading > span.codenumber + span.space,
main .ptx-content section#section5-1-intro > h2.heading > span.type,
main .ptx-content section#section5-1-intro > h2.heading > span.codenumber,
main .ptx-content section#section5-1-intro > h2.heading > span.type + span.space,
main .ptx-content section#section5-1-intro > h2.heading > span.codenumber + span.space,
#section5-1-intro h1.heading > span.type,
#section5-1-intro h1.heading > span.codenumber,
#section5-1-intro h1.heading > span.type + span.space,
#section5-1-intro h1.heading > span.codenumber + span.space,
#section5-1-intro h2.heading > span.type,
#section5-1-intro h2.heading > span.codenumber,
#section5-1-intro h2.heading > span.type + span.space,
#section5-1-intro h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* inv-5-1 intro table: row headers should be bold but not italic. */
#inv-5-1 .introduction table tbody th {
    font-style: normal !important;
    font-weight: 700 !important;
}

/* inv-5-2 tables: row headers should be bold but not italic. */
#inv-5-2 table tbody th {
    font-weight: 700 !important;
    font-style: normal !important;
}

/* inv-5-2 story-title column headers: smaller and italicized (exclude first blank and Total columns). */
#morals-story-counts-table table thead th:nth-child(n+2):nth-child(-n+5),
#morals-story-obs-exp-table table thead th:nth-child(n+2):nth-child(-n+5) {
    font-size: 0.88em !important;
    font-style: italic !important;
}

/* inv-5-1a tables: row headers should be bold but not italic. */
#inv-5-1a table tbody th {
    font-weight: 700 !important;
    font-style: normal !important;
}

/* inv-5-3 table: row/column headers bold, body counts regular. */
#nightlights-eye-table table thead th,
#nightlights-eye-table table tbody th {
    font-weight: 700 !important;
    font-style: normal !important;
}

#nightlights-eye-table table td {
    font-weight: 400 !important;
}

/* inv-5-1a table widths are set inline with <col width="..."/> in source/ch5/inv-5-1a.ptx. */

/* inv-5-1a header emphasis: only row/column headers should be bold. */
#newspaper-three-year-counts-table table thead th,
#newspaper-three-year-counts-table table tbody th,
#newspaper-2x2-collapse-table table thead th,
#newspaper-2x2-collapse-table table tbody th {
    font-weight: 700 !important;
}

#newspaper-three-year-counts-table table td,
#newspaper-2x2-collapse-table table td {
    font-weight: 400 !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter5-2 page title. */
.ptx-content section.chapter#chapter5-2 > .heading > span.type,
.ptx-content section.chapter#chapter5-2 > .heading > span.codenumber,
.ptx-content section.chapter#chapter5-2 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter5-2 > .heading > span.codenumber + span.space,
section.chapter#chapter5-2 > .heading > span.type,
section.chapter#chapter5-2 > .heading > span.codenumber,
section.chapter#chapter5-2 > .heading > span.type + span.space,
section.chapter#chapter5-2 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-2 > h1.heading > span.type,
main .ptx-content section.chapter#chapter5-2 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-2 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-2 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-2 > h2.heading > span.type,
main .ptx-content section.chapter#chapter5-2 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-2 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-2 > h2.heading > span.codenumber + span.space,
#chapter5-2 h1.heading > span.type,
#chapter5-2 h1.heading > span.codenumber,
#chapter5-2 h1.heading > span.type + span.space,
#chapter5-2 h1.heading > span.codenumber + span.space,
#chapter5-2 h2.heading > span.type,
#chapter5-2 h2.heading > span.codenumber,
#chapter5-2 h2.heading > span.type + span.space,
#chapter5-2 h2.heading > span.codenumber + span.space,
section#chapter5-2.chapter > h2.heading > span.type,
section#chapter5-2.chapter > h2.heading > span.codenumber,
section#chapter5-2.chapter > h2.heading > span.type + span.space,
section#chapter5-2.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter5-3 page title. */
.ptx-content section.chapter#chapter5-3 > .heading > span.type,
.ptx-content section.chapter#chapter5-3 > .heading > span.codenumber,
.ptx-content section.chapter#chapter5-3 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter5-3 > .heading > span.codenumber + span.space,
section.chapter#chapter5-3 > .heading > span.type,
section.chapter#chapter5-3 > .heading > span.codenumber,
section.chapter#chapter5-3 > .heading > span.type + span.space,
section.chapter#chapter5-3 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-3 > h1.heading > span.type,
main .ptx-content section.chapter#chapter5-3 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-3 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-3 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-3 > h2.heading > span.type,
main .ptx-content section.chapter#chapter5-3 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-3 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-3 > h2.heading > span.codenumber + span.space,
#chapter5-3 h1.heading > span.type,
#chapter5-3 h1.heading > span.codenumber,
#chapter5-3 h1.heading > span.type + span.space,
#chapter5-3 h1.heading > span.codenumber + span.space,
#chapter5-3 h2.heading > span.type,
#chapter5-3 h2.heading > span.codenumber,
#chapter5-3 h2.heading > span.type + span.space,
#chapter5-3 h2.heading > span.codenumber + span.space,
section#chapter5-3.chapter > h2.heading > span.type,
section#chapter5-3.chapter > h2.heading > span.codenumber,
section#chapter5-3.chapter > h2.heading > span.type + span.space,
section#chapter5-3.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter5-4 page title. */
.ptx-content section.chapter#chapter5-4 > .heading > span.type,
.ptx-content section.chapter#chapter5-4 > .heading > span.codenumber,
.ptx-content section.chapter#chapter5-4 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter5-4 > .heading > span.codenumber + span.space,
section.chapter#chapter5-4 > .heading > span.type,
section.chapter#chapter5-4 > .heading > span.codenumber,
section.chapter#chapter5-4 > .heading > span.type + span.space,
section.chapter#chapter5-4 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-4 > h1.heading > span.type,
main .ptx-content section.chapter#chapter5-4 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-4 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-4 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5-4 > h2.heading > span.type,
main .ptx-content section.chapter#chapter5-4 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter5-4 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5-4 > h2.heading > span.codenumber + span.space,
#chapter5-4 h1.heading > span.type,
#chapter5-4 h1.heading > span.codenumber,
#chapter5-4 h1.heading > span.type + span.space,
#chapter5-4 h1.heading > span.codenumber + span.space,
#chapter5-4 h2.heading > span.type,
#chapter5-4 h2.heading > span.codenumber,
#chapter5-4 h2.heading > span.type + span.space,
#chapter5-4 h2.heading > span.codenumber + span.space,
section#chapter5-4.chapter > h2.heading > span.type,
section#chapter5-4.chapter > h2.heading > span.codenumber,
section#chapter5-4.chapter > h2.heading > span.type + span.space,
section#chapter5-4.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter2-sec1 page title. */
.ptx-content section.chapter#chapter2-sec1 > .heading > span.type,
.ptx-content section.chapter#chapter2-sec1 > .heading > span.codenumber,
.ptx-content section.chapter#chapter2-sec1 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter2-sec1 > .heading > span.codenumber + span.space,
section.chapter#chapter2-sec1 > .heading > span.type,
section.chapter#chapter2-sec1 > .heading > span.codenumber,
section.chapter#chapter2-sec1 > .heading > span.type + span.space,
section.chapter#chapter2-sec1 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter2-sec1 > h1.heading > span.type,
main .ptx-content section.chapter#chapter2-sec1 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter2-sec1 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter2-sec1 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter2-sec1 > h2.heading > span.type,
main .ptx-content section.chapter#chapter2-sec1 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter2-sec1 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter2-sec1 > h2.heading > span.codenumber + span.space,
#chapter2-sec1 h1.heading > span.type,
#chapter2-sec1 h1.heading > span.codenumber,
#chapter2-sec1 h1.heading > span.type + span.space,
#chapter2-sec1 h1.heading > span.codenumber + span.space,
#chapter2-sec1 h2.heading > span.type,
#chapter2-sec1 h2.heading > span.codenumber,
#chapter2-sec1 h2.heading > span.type + span.space,
#chapter2-sec1 h2.heading > span.codenumber + span.space,
section#chapter2-sec1.chapter > h2.heading > span.type,
section#chapter2-sec1.chapter > h2.heading > span.codenumber,
section#chapter2-sec1.chapter > h2.heading > span.type + span.space,
section#chapter2-sec1.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter5 page title (section 2-2 wrapper). */
.ptx-content section.chapter#chapter5 > .heading > span.type,
.ptx-content section.chapter#chapter5 > .heading > span.codenumber,
.ptx-content section.chapter#chapter5 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter5 > .heading > span.codenumber + span.space,
section.chapter#chapter5 > .heading > span.type,
section.chapter#chapter5 > .heading > span.codenumber,
section.chapter#chapter5 > .heading > span.type + span.space,
section.chapter#chapter5 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5 > h1.heading > span.type,
main .ptx-content section.chapter#chapter5 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter5 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter5 > h2.heading > span.type,
main .ptx-content section.chapter#chapter5 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter5 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter5 > h2.heading > span.codenumber + span.space,
#chapter5 h1.heading > span.type,
#chapter5 h1.heading > span.codenumber,
#chapter5 h1.heading > span.type + span.space,
#chapter5 h1.heading > span.codenumber + span.space,
#chapter5 h2.heading > span.type,
#chapter5 h2.heading > span.codenumber,
#chapter5 h2.heading > span.type + span.space,
#chapter5 h2.heading > span.codenumber + span.space,
section#chapter5.chapter > h2.heading > span.type,
section#chapter5.chapter > h2.heading > span.codenumber,
section#chapter5.chapter > h2.heading > span.type + span.space,
section#chapter5.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide full chapter prefix ("Chapter" and number) for chapter6 page title (section 2-3 wrapper). */
.ptx-content section.chapter#chapter6 > .heading > span.type,
.ptx-content section.chapter#chapter6 > .heading > span.codenumber,
.ptx-content section.chapter#chapter6 > .heading > span.type + span.space,
.ptx-content section.chapter#chapter6 > .heading > span.codenumber + span.space,
section.chapter#chapter6 > .heading > span.type,
section.chapter#chapter6 > .heading > span.codenumber,
section.chapter#chapter6 > .heading > span.type + span.space,
section.chapter#chapter6 > .heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter6 > h1.heading > span.type,
main .ptx-content section.chapter#chapter6 > h1.heading > span.codenumber,
main .ptx-content section.chapter#chapter6 > h1.heading > span.type + span.space,
main .ptx-content section.chapter#chapter6 > h1.heading > span.codenumber + span.space,
main .ptx-content section.chapter#chapter6 > h2.heading > span.type,
main .ptx-content section.chapter#chapter6 > h2.heading > span.codenumber,
main .ptx-content section.chapter#chapter6 > h2.heading > span.type + span.space,
main .ptx-content section.chapter#chapter6 > h2.heading > span.codenumber + span.space,
#chapter6 h1.heading > span.type,
#chapter6 h1.heading > span.codenumber,
#chapter6 h1.heading > span.type + span.space,
#chapter6 h1.heading > span.codenumber + span.space,
#chapter6 h2.heading > span.type,
#chapter6 h2.heading > span.codenumber,
#chapter6 h2.heading > span.type + span.space,
#chapter6 h2.heading > span.codenumber + span.space,
section#chapter6.chapter > h2.heading > span.type,
section#chapter6.chapter > h2.heading > span.codenumber,
section#chapter6.chapter > h2.heading > span.type + span.space,
section#chapter6.chapter > h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Hide section number prefix on Investigation 1.9 page heading only (remove 4.5). */
#investigation-1-9 h1.heading > span.codenumber,
#investigation-1-9 h1.heading > span.codenumber + span.space,
#investigation-1-9 h2.heading > span.codenumber,
#investigation-1-9 h2.heading > span.codenumber + span.space {
    display: none !important;
}

/* Section 2 summary assemblages - salmon (match Ch1 summary box style). */
.ptx-content article.assemblage.assemblage-like#one-sample-t-summary,
.ptx-content article.assemblage.assemblage-like#prediction-interval-summary {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like#one-sample-t-summary *,
.ptx-content article.assemblage.assemblage-like#prediction-interval-summary * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Section 4 paired differences summary assemblages - salmon. */
.ptx-content #summary-paired-differences article.assemblage.assemblage-like {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content #summary-paired-differences article.assemblage.assemblage-like * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Section 5 chi-square test summary assemblage - salmon. */
.ptx-content article.assemblage.assemblage-like#chi-square-test-summary-box,
.ptx-content article.assemblage#chi-square-test-summary-box,
.ptx-content #chi-square-test-summary-5-1 article.assemblage.assemblage-like,
.ptx-content #chi-square-test-summary-5-1 article.assemblage,
.ptx-content article.assemblage.assemblage-like[id^="chi-square-test-summary-box"] {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like#chi-square-test-summary-box *,
.ptx-content article.assemblage#chi-square-test-summary-box *,
.ptx-content #chi-square-test-summary-5-1 article.assemblage.assemblage-like *,
.ptx-content #chi-square-test-summary-5-1 article.assemblage *,
.ptx-content article.assemblage.assemblage-like[id^="chi-square-test-summary-box"] * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Reduce blank lines between consecutive hint/solution expandable items. */
.ptx-content details.hint-like + details.hint-like,
.ptx-content details.hint-like + details.solution-like,
.ptx-content details.solution-like + details.hint-like {
    margin-top: 0.2em !important;
}

/* FALLBACK heading-prefix hides using descendant selectors (no child combinator).
   These supplement the child-combinator rules above in case Runestone's build
   wraps headings in an intermediate element. */
#chapter1 h2.heading span.type, #chapter1 h2.heading span.codenumber, #chapter1 h2.heading span.space,
#chapter2 h2.heading span.type, #chapter2 h2.heading span.codenumber, #chapter2 h2.heading span.space,
#chapter3 h2.heading span.type, #chapter3 h2.heading span.codenumber, #chapter3 h2.heading span.space,
#chapter3-intro h2.heading span.type, #chapter3-intro h2.heading span.codenumber, #chapter3-intro h2.heading span.space,
#chapter3-1 h2.heading span.type, #chapter3-1 h2.heading span.codenumber, #chapter3-1 h2.heading span.space,
#chapter3-2 h2.heading span.type, #chapter3-2 h2.heading span.codenumber, #chapter3-2 h2.heading span.space,
#chapter3-3 h2.heading span.type, #chapter3-3 h2.heading span.codenumber, #chapter3-3 h2.heading span.space,
#chapter1-wrap-up h2.heading span.type, #chapter1-wrap-up h2.heading span.codenumber, #chapter1-wrap-up h2.heading span.space,
#chapter2-intro h2.heading span.type, #chapter2-intro h2.heading span.codenumber, #chapter2-intro h2.heading span.space,
#chapter2-sec1 h2.heading span.type, #chapter2-sec1 h2.heading span.codenumber, #chapter2-sec1 h2.heading span.space,
#chapter5-1 h1.heading span.type, #chapter5-1 h1.heading span.codenumber, #chapter5-1 h1.heading span.space,
#chapter5-1 h2.heading span.type, #chapter5-1 h2.heading span.codenumber, #chapter5-1 h2.heading span.space,
#chapter5 h2.heading span.type, #chapter5 h2.heading span.codenumber, #chapter5 h2.heading span.space,
#chapter6 h2.heading span.type, #chapter6 h2.heading span.codenumber, #chapter6 h2.heading span.space {
    display: none !important;
}

/* Summary of Inference for Regression assemblage (ch5 section 5.4) - salmon. */
.ptx-content article.assemblage.assemblage-like[id^="summary-inference-regression"] {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
    border-left: 4px solid #E6B3A8 !important;
}

.ptx-content article.assemblage.assemblage-like[id^="summary-inference-regression"] * {
    --assemblage-like-body-background: #F8DDD8 !important;
    --assemblage-like-border-color: #E6B3A8 !important;
    background-color: #F8DDD8 !important;
}

/* Cover image on the front matter title page (no native PreTeXt support for
   a titlepage image, so injected via CSS after the frontmatter heading). */
.ptx-content section.frontmatter > .heading::after {
    content: "";
    display: block;
    width: min(60%, 420px);
    aspect-ratio: 1700 / 2200;
    margin: 1.2em auto 0.5em;
    background: url("images/ChanceCover4th.jpg") no-repeat center / contain;
}

/* Inv 1.4 intro image: subtle framed card with soft shadow. */
#inv1-4-intro-image,
.ptx-content #inv1-4-intro-image {
    background: linear-gradient(180deg, #f8f2e8 0%, #efe4d5 100%) !important;
    border: 1px solid #cfbfa8 !important;
    border-radius: 10px !important;
    padding: 10px !important;
    box-shadow: 0 6px 16px rgba(73, 54, 29, 0.16) !important;
}

#inv1-4-intro-image img,
.ptx-content #inv1-4-intro-image img {
    display: block;
    border-radius: 6px;
}

/* ---- v35/v36: detour hint-link layout ----
   Hint reveals sitting directly inside a <paragraphs> block (Technology
   Detours, summary pages) get breathing room above the link row.
   When a block has FOUR or more hint links (instructions + outputs),
   closed links flow two per row; an opened hint expands to full width.
   Blocks with only two or three links keep one link per row.
   Hints attached to regular exercises are unaffected. */
section.paragraphs > details.solution-like,
.ptx-content section.paragraphs > details.solution-like {
  margin-top: 0.7em;
}
@media (min-width: 600px) {
  section.paragraphs > details.solution-like:nth-last-of-type(n+4),
  section.paragraphs > details.solution-like:nth-last-of-type(n+4) ~ details.solution-like,
  .ptx-content section.paragraphs > details.solution-like:nth-last-of-type(n+4),
  .ptx-content section.paragraphs > details.solution-like:nth-last-of-type(n+4) ~ details.solution-like {
    display: inline-block;
    width: 48%;
    vertical-align: top;
    margin-right: 1%;
    box-sizing: border-box;
  }
  section.paragraphs > details.solution-like[open],
  section.paragraphs > details.solution-like ~ details.solution-like[open],
  .ptx-content section.paragraphs > details.solution-like[open],
  .ptx-content section.paragraphs > details.solution-like ~ details.solution-like[open] {
    display: block;
    width: 100%;
    margin-right: 0;
  }
}

/* ---- v36: purple assemblage-style box for converted tech-detour blocks ----
   Technology Detours now authored as <paragraphs xml:id="tech-detour-...">
   get the same purple treatment as the tech-detour assemblages, while
   keeping their collapsible hint links. */
section.paragraphs[id^="tech-detour"],
.ptx-content section.paragraphs[id^="tech-detour"] {
    background-color: #E5DFEC !important;
    border-left: 4px solid #7B68AE !important;
    padding: 1em !important;
    border-radius: 4px !important;
    margin-bottom: 1em !important;
}

/* ---- v37: block-level title and paragraphs in tech-detour blocks ----
   The theme renders a paragraphs block's title and first paragraph inline
   (run-in style), which let the first hint link flow onto the same line as
   the instruction text and threw off the two-column pairing. Inside
   tech-detour blocks, make the heading and paragraphs proper blocks so
   hint links always start on a fresh line. */
section.paragraphs[id^="tech-detour"] > .heading:first-child,
.ptx-content section.paragraphs[id^="tech-detour"] > .heading:first-child {
  display: block !important;
  margin-bottom: 0.4em;
}
section.paragraphs[id^="tech-detour"] > .heading:first-child + :is(.para, .para.logical, .introduction),
.ptx-content section.paragraphs[id^="tech-detour"] > .heading:first-child + :is(.para, .para.logical, .introduction) {
  display: block !important;
}

/* ---- v38: remove blank space above the detour title ----
   The v37 block-display heading picked up the theme's default heading
   top margin, which rendered as blank lines inside the purple box. */
section.paragraphs[id^="tech-detour"] > .heading:first-child,
.ptx-content section.paragraphs[id^="tech-detour"] > .heading:first-child {
  margin-top: 0 !important;
  padding-top: 0 !important;
}

/* ---- v39: one-column exception for the Inv 1.1 Bar Graphs detour ---- */
section.paragraphs#tech-detour-bargraph-new > details.solution-like,
.ptx-content section.paragraphs#tech-detour-bargraph-new > details.solution-like {
  display: block;
  width: 100%;
  margin-right: 0;
}

/* ---- v40: full thin border on tech-detour boxes (match assemblage style) ---- */
section.paragraphs[id^="tech-detour"],
.ptx-content section.paragraphs[id^="tech-detour"] {
  border: 2px solid #7B68AE !important;
  border-left: 4px solid #7B68AE !important;
}

/* ---- v41: Probability Detour assemblages - tan (vs. blue definitions) ---- */
.ptx-content article.assemblage.assemblage-like[id^="prob-detour"],
.ptx-content article.assemblage.assemblage-like[id^="probability-detour"] {
    --assemblage-like-body-background: #F6EEDD !important;
    --assemblage-like-border-color: #C19A6B !important;
    background-color: #F6EEDD !important;
    border-left: 4px solid #C19A6B !important;
}
.ptx-content article.assemblage.assemblage-like[id^="prob-detour"] *,
.ptx-content article.assemblage.assemblage-like[id^="probability-detour"] * {
    --assemblage-like-body-background: #F6EEDD !important;
    background-color: #F6EEDD !important;
}

/* Clamp the Generate Random Numbers applet height inside the Inv 1.12
   detour hint - the iframe resizer otherwise inflates it with dead space.
   Clamp the container (no inline styles to fight) and clip the overflow. */
section.paragraphs#tech-detour-srs .interactive-iframe-container,
.ptx-content section.paragraphs#tech-detour-srs .interactive-iframe-container {
  height: 380px !important;
  width: 100% !important;
  max-width: 100% !important;
  overflow: hidden !important;
}

/* ---- v43: keep applets embedded in detour hints inside their box ----
   Generalizes the v42 Inv 1.12 fix: the responsive sizing script measures
   iframes while a hint is closed and falls back to a viewport width,
   letting the applet spill past the purple box. Applies to any
   interactive inside a tech-detour block (e.g. tCalc in Inv 2.5). */
section.paragraphs[id^="tech-detour"] .interactive-iframe-container,
.ptx-content section.paragraphs[id^="tech-detour"] .interactive-iframe-container {
  width: 100% !important;
  max-width: 100% !important;
  overflow: hidden !important;
}

/* ---- v46: framed border for the Inv 5.1 intro image (table-based framing
   collapsed under table auto-layout; frame the img directly instead). ---- */
img[src$="SpockJury.jpg"] {
  border: 2px solid #cfbfa8;
  border-radius: 8px;
  padding: 8px;
  background: #ffffff;
  box-shadow: 0 6px 16px rgba(73, 54, 29, 0.16);
  box-sizing: border-box;
}

/* ---- v47: the Inv 1.4 intro image never got its framed card: image xml:ids
   do not survive into the built HTML, so the #inv1-4-intro-image rule
   targeted nothing. Frame it by filename like the Inv 5.1 image. ---- */
img[src$="inv1.4intro.png"] {
  border: 2px solid #cfbfa8;
  border-radius: 8px;
  padding: 8px;
  background: #ffffff;
  box-shadow: 0 6px 16px rgba(73, 54, 29, 0.16);
  box-sizing: border-box;
}

/* ---- v48: framed-card treatment extended to the other article-clip intro
   images (author-approved list): Inv 3.4 PubMed abstract, Inv 3.9 JAMA
   clipping, Inv 4.1 court citation, Example 3.2 survey form. ---- */
img[src$="Inv3.4intro.png"],
img[src$="Inv3.9Intro.png"],
img[src$="Inv4.1intro.png"],
img[src$="example3.2intro.png"] {
  border: 2px solid #cfbfa8;
  border-radius: 8px;
  padding: 8px;
  background: #ffffff;
  box-shadow: 0 6px 16px rgba(73, 54, 29, 0.16);
  box-sizing: border-box;
}

/* ---- v49: alert inside purple tech-detour boxes renders like term
   (the Investigation 1.2 look): tight inline bold-italic with no theme
   padding, margin, or background highlight. ---- */
section.paragraphs[id^="tech-detour"] em.alert,
article.assemblage[id^="tech-detour"] em.alert,
.ptx-content section.paragraphs[id^="tech-detour"] em.alert,
.ptx-content article.assemblage[id^="tech-detour"] em.alert {
  display: inline !important;
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  font-style: italic;
  font-weight: 700;
}

/* ---- v51: constrain the fCalc embed in the inv-5-5 p-value hint. The
   responsive resizer inflates iframe inline sizes and a theme min-height
   floors the height, so out-rank both on the iframe and its container.
   (The v50 AnovaSim pin is retired - that applet stays full size.) ---- */
iframe[src*="fCalc"] {
  width: 100% !important;
  height: auto !important;
  aspect-ratio: 3 / 2;
  min-height: 0 !important;
}
div.interactive-iframe-container:has(> iframe[src*="fCalc"]) {
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  min-height: 0 !important;
}

/* ---- v52: dark-mode legibility for the colored boxes ----
   Dark mode adds the .dark-mode class on <html> and flips the theme's text
   color to near-white (--body-text-color: #f2f2f2). The box rules above pin
   light pastel backgrounds with !important but never set a text color, so in
   dark mode the boxes showed near-white text on near-white backgrounds.
   Keep the box colors and force dark text for content sitting on the tint.
   Opened hint/solution bodies (.knowl__content) and Runestone widgets keep
   the theme's own dark-mode styling, which is already readable. */
:root.dark-mode .ptx-content :is(article.convention, .definition-like,
    .remark-like, .assemblage-like, section.paragraphs[id^="tech-detour"],
    article.exercise-like#inv4-2-tech),
:root.dark-mode .ptx-content :is(article.convention, .definition-like,
    .remark-like, .assemblage-like, section.paragraphs[id^="tech-detour"],
    article.exercise-like#inv4-2-tech)
    *:not(.knowl__content, .knowl__content *, .runestone, .runestone *,
          input, textarea, select, button) {
  color: #1a1a1a !important;
}

/* Links (and hint-reveal summary links) inside the tinted boxes: dark blue so
   they stay distinguishable from the surrounding dark text. */
:root.dark-mode .ptx-content :is(article.convention, .definition-like,
    .remark-like, .assemblage-like, section.paragraphs[id^="tech-detour"],
    article.exercise-like#inv4-2-tech)
    :is(a, summary, summary *):not(.knowl__content, .knowl__content *,
          .runestone, .runestone *) {
  color: #0b4f8a !important;
}

/* Guard: several assemblage rules above force the light background onto every
   descendant, which would repaint an opened hint/solution body inside them.
   In dark mode, hand those bodies back to the theme's dark knowl styling so
   the (light) theme text stays readable there. */
:root.dark-mode .ptx-content .assemblage-like .knowl__content.knowl__content,
:root.dark-mode .ptx-content .assemblage-like .knowl__content.knowl__content * {
  background-color: var(--knowl-background) !important;
}

/* The reveal body (.knowl__content) is excluded from the dark-text rule above
   but still INHERITS the dark color from its parent <details>, which sits on
   the box tint. Restore the theme's light dark-mode text inside reveal bodies;
   links and syntax-highlighted code keep the theme's own dark-mode colors. */
:root.dark-mode .ptx-content :is(article.convention, .definition-like,
    .remark-like, .assemblage-like, section.paragraphs[id^="tech-detour"],
    article.exercise-like#inv4-2-tech)
    .knowl__content,
:root.dark-mode .ptx-content :is(article.convention, .definition-like,
    .remark-like, .assemblage-like, section.paragraphs[id^="tech-detour"],
    article.exercise-like#inv4-2-tech)
    .knowl__content *:not(a, a *, code, code *, pre, pre *, .token) {
  color: var(--body-text-color);
}

/* Blockquotes are pinned to dark-gray text above; lighten them in dark mode
   (they have no light background of their own). */
:root.dark-mode .ptx-content blockquote {
  color: #c9c9c9 !important;
  border-left-color: #777 !important;
}

/* ---- v54: hide the auto-generated placeholder hint ("Number"/"Text") only
   in fill-in exercises whose blanks MIX numeric and text answers. PreTeXt
   derives one hint from the first blank's answer type and reuses it for every
   blank in the exercise, so in mixed exercises it is wrong for some blanks
   (e.g. text blanks labeled "Number"). Uniform-type exercises keep the hint.
   Id list generated by scanning setup/var first-condition types (both label
   and xml:id forms emitted; only one exists in the built HTML). ---- */
#I1-11b input::placeholder,
#I1-11-b input::placeholder,
#I1-11i input::placeholder,
#I1-11-i input::placeholder,
#I1-13-b input::placeholder,
#I1-14-d input::placeholder,
#I1-16-e input::placeholder,
#I1-4-3 input::placeholder,
#I1-4-4 input::placeholder,
#I1-4-8 input::placeholder,
#I1-5-11 input::placeholder,
#I1-7q input::placeholder,
#I1-7-q input::placeholder,
#I1-8j input::placeholder,
#I1-8-j input::placeholder,
#I7-2-8 input::placeholder,
#inv2-5-h input::placeholder,
#I7-2-11 input::placeholder,
#inv2-5-k input::placeholder,
#I7-2-20 input::placeholder,
#inv2-5-t input::placeholder,
#I7-2-22 input::placeholder,
#inv2-5-v input::placeholder,
#I7-2-23 input::placeholder,
#inv2-5-w input::placeholder,
#I7-3-4 input::placeholder,
#inv2-6-d input::placeholder,
#inv2-7-d input::placeholder,
#inv2-8-a input::placeholder,
#inv2-8-b input::placeholder,
#inv3-1-v input::placeholder,
#inv3-1-y input::placeholder,
#inv3-10-c input::placeholder,
#inv3-10-f input::placeholder,
#practice-3-10-b input::placeholder,
#practice-3-10-c input::placeholder,
#inv3-2-d input::placeholder,
#inv3-6-k input::placeholder,
#inv3-6-l input::placeholder,
#inv3-6-n input::placeholder,
#inv3-6-o input::placeholder,
#inv3-7-d input::placeholder,
#inv3-7-i input::placeholder,
#inv3-8-a input::placeholder,
#inv3-8-d input::placeholder,
#inv3-8-m input::placeholder,
#inv3-8-o input::placeholder,
#inv3-8-s input::placeholder,
#inv3-9-d input::placeholder,
#inv3-9-g input::placeholder,
#inv3-9-i input::placeholder,
#PD4-2-3 input::placeholder,
#prob-detour-2means-c input::placeholder,
#PD4-2-4 input::placeholder,
#prob-detour-2means-d input::placeholder,
#I4-3-6 input::placeholder,
#inv4-3-f input::placeholder,
#I4-4-16 input::placeholder,
#inv4-4-p input::placeholder,
#inv5-1-k input::placeholder,
#inv5-8-v input::placeholder,
#A-9 input::placeholder,
#hurricane-ex-i input::placeholder {
  color: transparent !important;
  opacity: 0 !important;
}