/*
 * Engineering Atlas — Hybrid editorial design system
 *
 * The stylesheet is intentionally dependency-free so every generated page
 * remains readable from file:// and in long-lived offline archives.
 */

:root {
  color-scheme: light;
  --color-paper: #f7f3ea;
  --color-surface: #fffdf8;
  --color-ink: #172033;
  --color-muted: #4c5665;
  --color-border: #746f65;
  --color-accent: #075e68;
  --color-warm: #8a3b24;
  --color-success: #246b47;
  --color-warning: #783d0b;
  --color-focus: #9b2f00;
  --color-print-ink: #000000;
  --color-print-muted: #333333;
  --space-1: 0.375rem;
  --space-2: 0.75rem;
  --space-3: 1.25rem;
  --space-4: 2rem;
  --space-5: 3.5rem;
  --measure-reading: 70ch;
  --measure-wide: 86rem;
  --border-strong: 0.125rem solid var(--color-ink);
  --shadow-card: 0.25rem 0.3rem 0 rgb(23 32 51 / 12%);
  --focus-ring: 0.1875rem solid var(--color-focus);
  --font-interface: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  --font-reading: ui-serif, "Hiragino Mincho ProN", "Yu Mincho",
    "YuMincho", "Noto Serif CJK JP", serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Mono",
    "Liberation Mono", "Menlo", monospace;
}

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

html {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-reading);
  font-size: 100%;
  line-break: strict;
  overflow-wrap: anywhere;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-inline-size: 0;
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

body,
main,
section,
article,
header,
footer,
nav,
div,
ol,
ul,
li {
  min-inline-size: 0;
}

h1,
h2,
h3,
h4 {
  margin-block: 1.4em 0.55em;
  color: var(--color-ink);
  font-family: var(--font-interface);
  font-weight: 780;
  line-height: 1.2;
  text-wrap: balance;
}

h1 {
  max-inline-size: 22ch;
  font-size: clamp(2rem, 1.55rem + 2.25vw, 3.65rem);
  letter-spacing: -0.035em;
}

h2 {
  font-size: clamp(1.5rem, 1.3rem + 1vw, 2.25rem);
}

h3 {
  font-size: clamp(1.2rem, 1.1rem + 0.5vw, 1.55rem);
}

h4 {
  margin-block: 1.25em 0.45em;
  font-size: clamp(1.05rem, 1rem + 0.25vw, 1.25rem);
}

p,
ul,
ol,
blockquote,
figure,
details,
pre,
table {
  margin-block: 0 var(--space-3);
}

p,
li,
dd,
caption,
figcaption,
td,
th {
  hanging-punctuation: first allow-end last;
}

ul,
ol {
  padding-inline-start: 1.5em;
}

li + li {
  margin-block-start: var(--space-1);
}

a {
  color: var(--color-accent);
  font-weight: 650;
  text-decoration-color: currentColor;
  text-decoration-line: underline;
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-thickness: 0.16em;
}

:where(a, summary, [tabindex]):focus-visible {
  border-radius: 0.125rem;
  outline: var(--focus-ring);
  outline-offset: 0.2rem;
}

:target {
  border-block-start: 0.25rem solid var(--color-focus);
  scroll-margin-block-start: var(--space-4);
}

.skip-link {
  position: fixed;
  z-index: 100;
  inset-block-start: -10rem;
  inset-inline-start: var(--space-2);
  display: inline-flex;
  align-items: center;
  min-block-size: 2.75rem;
  padding-inline: var(--space-3);
  border: var(--border-strong);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-interface);
}

.skip-link:focus,
.skip-link:focus-visible {
  inset-block-start: var(--space-2);
  outline: var(--focus-ring);
  outline-offset: 0.15rem;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: clamp(0.75rem, 0.55rem + 1vw, 1.4rem);
  padding-inline: clamp(1rem, 0.5rem + 2.5vw, 3rem);
  border-block-end: var(--border-strong);
  background: var(--color-surface);
  font-family: var(--font-interface);
}

.site-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
}

.site-header nav a {
  display: inline-flex;
  align-items: center;
  min-block-size: 2.75rem;
  padding-inline: var(--space-1);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-block-size: 2.75rem;
  color: var(--color-ink);
  font-size: clamp(1.05rem, 0.95rem + 0.5vw, 1.35rem);
  font-weight: 850;
  letter-spacing: -0.02em;
  text-decoration-line: underline;
  text-decoration-style: double;
}

main {
  inline-size: min(calc(100% - 2rem), var(--measure-wide));
  margin-inline: auto;
  padding-block: clamp(2rem, 1rem + 4vw, 5.5rem);
}

#main {
  min-block-size: 55vh;
}

section,
article {
  position: relative;
}

.reading {
  max-inline-size: var(--measure-reading);
  margin-inline: auto;
}

.hero {
  padding-block: clamp(2rem, 1rem + 5vw, 6rem);
  border-block: 0.2rem solid var(--color-ink);
}

.hero > p:last-child {
  max-inline-size: 46ch;
  margin-block-end: 0;
  color: var(--color-muted);
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.4rem);
}

.eyebrow {
  margin-block-end: var(--space-1);
  color: var(--color-warm);
  font-family: var(--font-interface);
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

blockquote {
  padding-block: var(--space-2);
  padding-inline: var(--space-3);
  border-inline-start: 0.35rem solid var(--color-warm);
  background: var(--color-surface);
  color: var(--color-ink);
}

blockquote > :last-child {
  margin-block-end: 0;
}

.callout {
  padding-block: var(--space-2);
  padding-inline: var(--space-3);
  border-inline-start: 0.35rem solid var(--color-accent);
  background: var(--color-surface);
}

.callout.warning {
  border-color: var(--color-warning);
}

.section {
  margin-block: var(--space-3);
  padding: var(--space-3);
  border: 0.0625rem solid var(--color-border);
  background: var(--color-surface);
}

.section > :first-child {
  margin-block-start: 0;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: end;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(9rem, 100%), 1fr));
  gap: var(--space-2);
  margin-block: var(--space-3);
}

.stat {
  padding: var(--space-2);
  border: 0.0625rem solid var(--color-border);
  background: var(--color-surface);
}

.stat strong {
  display: block;
  font-family: var(--font-interface);
  font-size: 1.8rem;
}

.small {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.daily-list {
  display: grid;
  gap: var(--space-3);
}

.steps li {
  margin-block-end: var(--space-2);
}

code.inline {
  padding: 0.12em 0.38em;
  background: color-mix(in srgb, var(--color-border) 18%, transparent);
}

button.secondary {
  background: var(--color-surface);
  color: var(--color-ink);
}

button.danger {
  border-color: var(--color-warning);
  color: var(--color-warning);
}

figure {
  margin-inline: 0;
  padding: var(--space-2);
  border: 0.0625rem solid var(--color-border);
  background: var(--color-surface);
}

figcaption {
  margin-block-start: var(--space-1);
  color: var(--color-muted);
  font-family: var(--font-interface);
  font-size: 0.9rem;
}

.quantitative-chart-artifact {
  display: grid;
  gap: var(--space-3);
  max-inline-size: var(--measure-reading);
}

.chart-scale {
  display: flex;
  justify-content: space-between;
  border-block-end: 0.125rem solid var(--color-border);
  color: var(--color-muted);
  font-family: var(--font-interface);
  font-variant-numeric: tabular-nums;
}

.chart-display {
  display: grid;
  gap: var(--space-2);
}

.chart-bars {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.chart-bars > li {
  display: grid;
  gap: var(--space-1);
}

.chart-bar {
  display: block;
  box-sizing: border-box;
  min-block-size: 1.75rem;
  padding: 0.2rem var(--space-1);
  border: 0.125rem solid currentColor;
  font-family: var(--font-interface);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.chart-bar--40 {
  inline-size: 40%;
}

.chart-bar--60 {
  inline-size: 60%;
}

.chart-bar--100 {
  inline-size: 100%;
}

.chart-display--color .chart-bar {
  background: #245d63;
  color: #ffffff;
}

.chart-display--monochrome .chart-bar {
  border-style: double;
  background-image: repeating-linear-gradient(
    135deg,
    CanvasText 0 0.125rem,
    Canvas 0.125rem 0.25rem
  );
  color: CanvasText;
}

details {
  padding: var(--space-2);
  border-block: 0.0625rem solid var(--color-border);
  background: var(--color-surface);
}

summary {
  display: flex;
  align-items: center;
  min-block-size: 2.75rem;
  color: var(--color-ink);
  cursor: pointer;
  font-family: var(--font-interface);
  font-weight: 750;
  text-decoration-line: underline;
  text-underline-offset: 0.18em;
}

summary::before {
  content: "＋";
  margin-inline-end: var(--space-1);
  color: var(--color-accent);
  font-weight: 900;
}

details[open] > summary::before {
  content: "−";
}

table {
  display: block;
  inline-size: 100%;
  max-inline-size: 100%;
  overflow-x: auto;
  border-spacing: 0;
  border-collapse: collapse;
  background: var(--color-surface);
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding-block: var(--space-2);
  padding-inline: var(--space-2);
  border-block-end: 0.0625rem solid var(--color-border);
  text-align: start;
  vertical-align: top;
  word-break: break-word;
}

th {
  background: color-mix(in srgb, var(--color-paper) 72%, var(--color-border));
  font-family: var(--font-interface);
  font-weight: 800;
}

caption {
  padding-block: var(--space-2);
  color: var(--color-ink);
  font-family: var(--font-interface);
  font-weight: 800;
  text-align: start;
}

pre {
  max-inline-size: 100%;
  padding: var(--space-3);
  overflow-x: auto;
  border: 0.0625rem solid var(--color-border);
  border-inline-start: 0.35rem solid var(--color-accent);
  background: #ffffff;
  color: var(--color-ink);
  line-height: 1.55;
  tab-size: 2;
  white-space: pre;
}

code,
kbd {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

:not(pre) > code {
  padding-block: 0.08em;
  padding-inline: 0.28em;
  border: 0.0625rem solid var(--color-border);
  background: var(--color-surface);
  word-break: break-word;
}

kbd {
  padding-block: 0.1em;
  padding-inline: 0.4em;
  border: 0.0625rem solid var(--color-border);
  border-block-end-width: 0.2rem;
  border-radius: 0.2rem;
  background: var(--color-surface);
}

mark {
  padding-inline: 0.12em;
  background: #f4dd8d;
  color: var(--color-ink);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-3);
  margin-block-start: var(--space-4);
}

.catalog-card {
  min-inline-size: 0;
  padding: var(--space-3);
  border: 0.0625rem solid var(--color-border);
  border-block-start: 0.35rem solid var(--color-accent);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.catalog-card__title {
  margin-block-start: 0;
  font-size: 1.2rem;
}

.catalog-card__list {
  margin-block-end: 0;
  padding-inline-start: 1.25rem;
}

.learning-path {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-block-start: var(--space-4);
}

.roadmap-stage {
  padding-block: var(--space-2) var(--space-3);
  border-block-start: 0.25rem solid var(--color-accent);
}

.roadmap-stage > h2 {
  margin-block-start: 0;
}

.learning-stage-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-3);
  padding: 0;
  list-style: none;
}

.mastery-gate-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-3);
  padding: 0;
  list-style: none;
}

.learning-stage {
  min-inline-size: 0;
  padding: var(--space-3);
  border: 0.0625rem solid var(--color-border);
  border-block-start: 0.4rem solid var(--color-accent);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.lesson-ordinal {
  display: inline-flex;
  align-items: center;
  min-block-size: 2rem;
  margin-block-end: var(--space-2);
  padding-inline: var(--space-2);
  border: 0.15rem solid var(--color-ink);
  border-radius: 999px;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-interface);
  font-variant-numeric: tabular-nums;
  font-weight: 900;
}

.learning-stage h3 {
  margin-block-start: 0;
}

.prerequisite-text {
  padding-block: var(--space-1);
  padding-inline: var(--space-2);
  border: 0.0625rem dashed var(--color-border);
  background: var(--color-paper);
  color: var(--color-muted);
  font-family: var(--font-interface);
  font-size: 0.9rem;
  font-weight: 650;
}

.prerequisite-text > strong {
  color: var(--color-ink);
  font-weight: 850;
}

.roadmap-track {
  margin-block-end: var(--space-2);
  color: var(--color-muted);
  font-family: var(--font-interface);
  font-size: 0.85rem;
}

.mastery-gates {
  margin-block-start: var(--space-5);
  padding-block-start: var(--space-3);
  border-block-start: var(--border-strong);
}

.mastery-gate {
  min-inline-size: 0;
  padding: var(--space-3);
  border: var(--border-strong);
  border-block-start: 0.55rem double var(--color-warm);
  background: color-mix(in srgb, var(--color-surface) 88%, #f4dd8d);
  box-shadow: var(--shadow-card);
}

.mastery-gate h3 {
  margin-block-start: 0;
}

.mastery-gate p:last-child {
  margin-block-end: 0;
}

.lesson {
  padding-block: var(--space-3);
}

.lesson > header {
  padding-block-end: var(--space-3);
  border-block-end: var(--border-strong);
}

.lede {
  max-inline-size: 52ch;
  color: var(--color-muted);
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.3rem);
}

.lesson-meta {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: var(--space-1) var(--space-2);
  padding: var(--space-3);
  border: 0.0625rem solid var(--color-border);
  background: var(--color-surface);
  font-family: var(--font-interface);
}

.lesson-meta dt {
  font-weight: 800;
}

.lesson-meta dd {
  margin-inline-start: 0;
}

#learning-objectives,
#capability-progression,
#practice-lab,
#teach-back,
#assessment,
#transfer-task,
#review-schedule,
#rubric,
#sources {
  margin-block-start: var(--space-5);
}

.lesson h2 {
  padding-block-end: var(--space-1);
  border-block-end: 0.0625rem solid var(--color-border);
}

.lessons-index {
  margin-block-start: var(--space-4);
}

.lesson-index-list,
.capability-list,
.review-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: var(--space-3);
  padding: 0;
  list-style: none;
}

.lesson-index-item,
.capability-level,
.review-list > li {
  min-inline-size: 0;
  padding: var(--space-3);
  border: 0.0625rem solid var(--color-border);
  background: var(--color-surface);
}

.lesson-index-item > a {
  font-family: var(--font-interface);
  font-size: 1.1rem;
}

.lesson-index-item > p,
.evidence-label {
  margin-block-start: var(--space-1);
  color: var(--color-muted);
}

.empty-state {
  padding: var(--space-3);
  border: 0.0625rem dashed var(--color-border);
  background: var(--color-surface);
}

.capability-level h3 {
  margin-block-start: 0;
  text-transform: capitalize;
}

.evidence-list,
.source-list {
  padding-inline-start: 1.25rem;
}

.artifact-label,
.evidence-label {
  padding-block: var(--space-1);
  padding-inline: var(--space-2);
  border-inline-start: 0.25rem solid var(--color-accent);
  background: var(--color-surface);
}

.rubric-table {
  inline-size: 100%;
}

.competency-matrix-page > section {
  margin-block-start: var(--space-5);
}

.competency-frameworks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
  gap: var(--space-2);
  padding: 0;
  list-style: none;
}

.competency-frameworks > li {
  padding: var(--space-2);
  border: 0.0625rem solid var(--color-border);
  border-inline-start: 0.35rem solid var(--color-accent);
  background: var(--color-surface);
}

.competency-matrix {
  min-inline-size: 64rem;
}

.competency-matrix th:first-child {
  inline-size: 17rem;
}

.competency-matrix td:last-child {
  min-inline-size: 26rem;
}

footer {
  margin-block-start: var(--space-5);
  padding-block: clamp(1.5rem, 1rem + 2vw, 3rem);
  padding-inline: clamp(1rem, 0.5rem + 2.5vw, 3rem);
  border-block-start: var(--border-strong);
  background: var(--color-surface);
  color: var(--color-muted);
  font-family: var(--font-interface);
  text-align: center;
}

footer p {
  margin-block-end: 0;
}

.capstone-card-list,
.capstone-lessons {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr));
  gap: var(--space-3);
  padding: 0;
  list-style: none;
}

.capstone-page > section,
.capstones-index-page .capstone-card-list {
  margin-block-start: var(--space-5);
}

.capstone-card,
.capstone-lessons > li,
.capstone-status,
.capstone-evidence > dd {
  padding: var(--space-3);
  border: var(--border-strong);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.capstone-card h2,
.capstone-card p:last-child,
.capstone-lessons p {
  margin-block-end: 0;
}

.capstone-status {
  border-inline-start: 0.5rem solid var(--color-warning);
}

.capstone-evidence {
  display: grid;
  grid-template-columns: minmax(7rem, 0.3fr) minmax(0, 1fr);
  gap: var(--space-2);
}

.capstone-evidence > dt {
  align-self: start;
  padding: var(--space-2);
  background: var(--color-ink);
  color: var(--color-surface);
  font-family: var(--font-interface);
  font-weight: 800;
}

.capstone-evidence > dd {
  margin: 0;
}

.capstone-rubric {
  inline-size: 100%;
}

.capstone-rubric th:first-child {
  min-inline-size: 8rem;
  white-space: nowrap;
}

.primary-exercise {
  border-inline-start: 0.25rem solid var(--color-success);
  padding-inline-start: var(--space-2);
}

.reinforcement {
  color: var(--color-muted);
}

@media (max-width: 48rem) {
  .site-header {
    display: block;
  }

  .site-header nav {
    margin-block-start: var(--space-1);
  }

  main {
    inline-size: min(calc(100% - 1rem), var(--measure-wide));
  }

  .hero {
    padding-inline: var(--space-2);
  }

  .learning-path {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-3);
  }

  .learning-stage-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .mastery-gate-list {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 22rem) {
  .lesson-meta {
    grid-template-columns: minmax(0, 1fr);
  }

  .lesson-meta dd {
    margin-block-end: var(--space-2);
  }
}

/*
 * No motion is used for comprehension. This explicit preference contract also
 * neutralizes smooth scrolling that a host browser or embedding page may set.
 */
@media (prefers-reduced-motion: reduce) {
  html:focus-within {
    scroll-behavior: auto;
  }
}

@media (forced-colors: active) {
  html,
  body,
  .site-header,
  .hero,
  .catalog-card,
  .learning-stage,
  .mastery-gate,
  .prerequisite-text,
  .lesson-meta,
  .lesson-index-item,
  .capability-level,
  .review-list > li,
  .empty-state,
  .artifact-label,
  .evidence-label,
  footer {
    background: Canvas;
    color: CanvasText;
  }

  a,
  .eyebrow {
    color: LinkText;
  }

  .lesson-ordinal,
  :where(a, summary, [tabindex]):focus-visible {
    border-color: CanvasText;
  }
}

@page competency-matrix {
  size: Letter landscape;
  margin: 0.4in;
}

@media print {
  html,
  body {
    background: #ffffff;
    color: var(--color-print-ink);
    font-size: 10.5pt;
  }

  .site-header nav,
  .skip-link {
    display: none;
  }

  .site-header {
    padding-inline: 0;
    background: #ffffff;
  }

  main {
    inline-size: 100%;
    padding-block: 1rem;
  }

  a {
    color: inherit;
    text-decoration-line: underline;
  }

  a[href^="https://"]::after {
    content: " (" attr(href) ")";
    font-family: var(--font-interface);
    font-size: 0.8em;
    font-weight: 400;
    overflow-wrap: anywhere;
  }

  pre {
    max-inline-size: 100%;
    overflow: visible;
    overflow-wrap: anywhere;
    white-space: pre-wrap;
  }

  .learning-path {
    grid-template-columns: 1fr;
  }

  .learning-stage-list,
  .mastery-gate-list,
  .competency-frameworks,
  .capstone-card-list,
  .capstone-lessons {
    grid-template-columns: 1fr;
  }

  .capstone-evidence {
    grid-template-columns: 1fr;
  }

  /*
   * Chromium may fragment grid items even when break-inside is declared.
   * A print-only block flow keeps every lesson heading, explanation, and
   * enclosing border together while preserving the responsive screen grid.
   */
  .capstone-lessons {
    display: block;
  }

  .capstone-lessons > li {
    break-inside: avoid-page;
    page-break-inside: avoid;
    margin-block-end: var(--space-3);
  }

  .catalog-card,
  .learning-stage,
  .mastery-gate,
  .prerequisite-text,
  .lesson-meta,
  .lesson-index-item,
  .capability-level,
  .review-list > li,
  .empty-state,
  .artifact-label,
  .evidence-label,
  blockquote,
  figure,
  details,
  pre,
  table,
  footer {
    background: #ffffff;
    color: var(--color-print-ink);
  }

  .hero > p:last-child,
  figcaption {
    color: var(--color-print-muted);
  }

  .chart-display--color .chart-bar {
    border: 2px solid currentColor;
    background: transparent;
    color: var(--color-print-ink);
  }

  .chart-display--monochrome .chart-bar {
    background: transparent;
  }

  .prerequisite-text {
    border-style: solid;
  }

  h1,
  h2,
  h3,
  h4,
  .catalog-card__title {
    break-after: avoid;
  }

  li,
  tr,
  .learning-stage,
  .mastery-gate,
  .prerequisite-text {
    break-inside: avoid;
  }

  table {
    display: table;
    min-inline-size: 0;
    overflow: visible;
  }

  body:has(.competency-matrix-page),
  .competency-matrix-page {
    page: competency-matrix;
  }

  /*
   * Chromium can omit cells from fragmented tables in otherwise valid PDFs.
   * Print uses labelled block cards so PDF output does not depend on the table
   * layout engine; the screen document keeps its semantic tables unchanged.
   */
  .competency-matrix + .competency-matrix {
    break-before: page;
  }

  .competency-matrix,
  .competency-matrix tbody,
  .competency-matrix tr,
  .competency-matrix th,
  .competency-matrix td {
    display: block;
    inline-size: auto;
    min-inline-size: 0;
    max-inline-size: none;
    overflow: visible;
  }

  .competency-matrix {
    margin-block-end: 0;
    font-size: 8pt;
    line-height: 1.25;
  }

  .competency-matrix thead {
    display: none;
  }

  .competency-matrix tbody tr {
    break-inside: avoid;
    margin-block: 0 0.2rem;
    padding: 0.18rem 0.25rem;
    border: 0.0625rem solid var(--color-print-ink);
  }

  .competency-matrix tbody th,
  .competency-matrix tbody td {
    padding: 0;
    border: 0;
    background: #ffffff;
  }

  .competency-matrix tbody th::before,
  .competency-matrix tbody td::before {
    margin-inline-end: 0.35rem;
    font-family: var(--font-interface);
    font-weight: 800;
  }

  .competency-matrix tbody th::before {
    content: "レッスン：";
  }

  .competency-matrix tbody td:nth-child(2)::before {
    content: "フレームワーク：";
  }

  .competency-matrix tbody td:nth-child(3)::before {
    content: "版：";
  }

  .competency-matrix tbody td:nth-child(4)::before {
    content: "対応強度：";
  }

  .competency-matrix tbody td:nth-child(5)::before {
    content: "公式ID・名称：";
  }

  .competency-matrix tbody td:nth-child(6)::before {
    content: "対応根拠：";
  }

  .competency-framework,
  .competency-version,
  .competency-code,
  .competency-strength {
    font-family: var(--font-mono);
    overflow-wrap: normal;
    white-space: nowrap;
    word-break: keep-all;
  }

  .competency-name,
  .competency-rationale {
    overflow-wrap: anywhere;
    white-space: normal;
    word-break: normal;
  }

  body:has(.competency-matrix-page) > .site-header,
  body:has(.competency-matrix-page) > footer {
    display: none;
  }

  body:has(.capstone-page) > footer {
    display: none;
  }

  body:has(.competency-matrix-page) main {
    padding-block: 0;
  }

  .competency-matrix-page > header {
    max-inline-size: none;
    font-size: 7pt;
    line-height: 1.15;
  }

  .competency-matrix-page > header .eyebrow,
  .competency-matrix-page > header h1,
  .competency-matrix-page > header p,
  .competency-matrix-page > section,
  .competency-matrix-page > section h2,
  .competency-frameworks,
  .competency-matrix caption {
    margin-block: 0;
  }

  .competency-matrix-page > header h1 {
    max-inline-size: none;
    font-size: 16pt;
  }

  .competency-matrix-page > section {
    margin-block-start: 0.15rem;
  }

  .competency-matrix-page > section h2 {
    font-size: 9pt;
  }

  .competency-frameworks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.15rem;
    font-size: 7pt;
    line-height: 1.15;
  }

  .capstone-card,
  .capstone-lessons > li,
  .capstone-status,
  .capstone-evidence > dd {
    background: #ffffff;
    color: var(--color-print-ink);
    box-shadow: none;
  }

  .capstone-evidence > dt {
    background: #ffffff;
    color: var(--color-print-ink);
    border: 0.0625rem solid var(--color-print-ink);
  }

  .capstone-card,
  .capstone-lessons > li,
  .capstone-evidence > dt,
  .capstone-evidence > dd,
  .capstone-milestones > li,
  .capstone-review-questions > li,
  .capstone-rubric tr {
    break-inside: avoid;
  }

  .competency-frameworks > li {
    padding: 0.1rem 0.2rem;
  }

  .competency-frameworks a[href^="https://"]::after {
    content: "";
  }

  .competency-matrix caption {
    display: block;
    inline-size: auto;
    padding-block: 0.1rem;
    font-size: 7pt;
    line-height: 1.15;
    writing-mode: horizontal-tb;
  }

  thead {
    display: table-header-group;
  }

  tfoot {
    display: table-footer-group;
  }

  footer {
    margin-block-start: 2rem;
    padding-block: 1rem;
  }
}