/* UML-READING-EXPERIENCE-2026-07-17-V2 */
html { scroll-padding-top: 86px; }
:where(section[id], header[id]) { scroll-margin-top: 86px; }
body { font-size: 16px; }
a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
  border-radius: 4px;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 12px;
  transform: translateY(-150%);
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}
.skip-link:focus { transform: translateY(0); }
.topbar { padding-block: 9px; }
.topbar nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
}
.button { border-color: #7f8c99; }
.discussion-hero h1,
.hero h1 { text-wrap: balance; }
.discussion-hero h1 em {
  color: var(--blue);
  font-style: normal;
}
.article-section p,
.boundary,
.discussion-card,
.scope-ledger p,
footer { overflow-wrap: anywhere; }
code:not(pre code) { overflow-wrap: anywhere; }

.reading-page { width: min(1060px, calc(100% - 40px)); }
.reading-page .discussion-article {
  max-width: 1000px;
  margin-inline: auto;
}
.reading-page .discussion-hero h1 {
  max-width: 920px;
  font-size: clamp(44px, 6vw, 68px);
  letter-spacing: -.025em;
}
.reading-page .discussion-deck {
  max-width: 820px;
  line-height: 1.55;
}
.compact-hero { padding: 58px 0 46px; }
.page-boundary {
  display: flex;
  gap: 10px;
  align-items: center;
  width: max-content;
  max-width: 100%;
  margin-bottom: 28px;
  padding: 7px 11px;
  border: 1px solid #c9d2db;
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.page-boundary strong { color: var(--ink); }
.status-row .status-open {
  border-color: #d5b56f;
  background: #fff5dd;
  color: #704900;
  font-weight: 800;
}
.status-row .status-stop {
  border-color: #d4aaa7;
  background: #f9eceb;
  color: #79302c;
  font-weight: 800;
}
.quick-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}
.quick-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 7px 12px;
  border: 1px solid #9daab7;
  border-radius: 999px;
  background: #fff;
  color: #425160;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}
.quick-nav a:hover {
  border-color: var(--blue);
  color: var(--blue);
}
.section-intro { max-width: 790px; }
.section-intro > p:not(.eyebrow) {
  color: #44515e;
  font-size: 18px;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 30px 0;
}
.answer-grid article {
  display: grid;
  align-content: start;
  min-height: 270px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}
.answer-number {
  color: var(--blue);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .12em;
}
.answer-grid h3 {
  margin: 18px 0 10px;
  font-size: 24px;
}
.answer-grid p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 16px;
}
.answer-state {
  align-self: end;
  width: max-content;
  max-width: 100%;
  margin-top: auto;
  padding: 6px 9px;
  border-radius: 999px;
  font-size: 12px;
}
.answer-state.pass {
  background: #e4f5eb;
  color: #13633a;
}
.answer-state.open {
  background: #fff1d7;
  color: #805300;
}
.answer-state.next {
  background: var(--blue2);
  color: #2049b3;
}
.intuition-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: hidden;
  margin-top: 20px;
  border: 1px solid #b8c8f3;
  border-radius: 18px;
  background: var(--blue2);
}
.intuition-card > div { padding: 23px 25px; }
.intuition-card > div + div { border-left: 1px solid #b8c8f3; }
.intuition-card span {
  display: block;
  margin-bottom: 7px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.intuition-card p {
  margin: 0;
  color: #38485a;
  font-size: 17px;
}
.plain-language-callout {
  margin: 24px 0;
  padding: 20px 23px;
  border-left: 4px solid var(--blue);
  border-radius: 3px 14px 14px 3px;
  background: var(--blue2);
  font-size: 18px;
}
.technical-detail,
.reader-notes {
  margin-top: 22px;
  border: 1px solid #aebbc7;
  border-radius: 14px;
  background: #fff;
}
.technical-detail summary,
.reader-notes summary {
  padding: 17px 20px;
  color: #344252;
  font-weight: 800;
  cursor: pointer;
  list-style-position: inside;
}
.technical-detail[open] summary,
.reader-notes[open] summary { border-bottom: 1px solid var(--line); }
.technical-detail > div,
.reader-notes > div { padding: 20px; }
.technical-detail p,
.reader-notes p {
  max-width: 780px;
  color: #44515e;
}
.technical-detail mjx-container[display="true"],
.center-formula mjx-container[display="true"] {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
}
.subsection-title {
  margin-top: 36px !important;
  font-size: 21px !important;
}
.evidence-verdicts article { min-height: 205px; }
.reader-results .result-card > strong { font-size: 30px; }
.modern-baseline-card {
  display: grid;
  grid-template-columns: minmax(220px, .8fr) minmax(220px, .65fr) minmax(0, 1.4fr);
  align-items: center;
  gap: 22px;
  margin-top: 14px;
  padding: 22px 24px;
  border: 1px solid #d5b56f;
  border-radius: 16px;
  background: #fff8e9;
}
.modern-baseline-card span {
  color: #805300;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.modern-baseline-card h3 {
  margin: 4px 0 0;
  font-size: 19px;
}
.modern-baseline-card > strong {
  color: #704900;
  font-size: 20px;
}
.modern-baseline-card p {
  margin: 0;
  color: #59636c;
  font-size: 15px;
}
.interpretation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 28px 0;
}
.interpretation-grid article {
  padding: 23px;
  border-top: 4px solid var(--blue);
  border-radius: 4px 4px 16px 16px;
  background: #fff;
}
.interpretation-grid span {
  color: var(--blue);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.interpretation-grid h3 { font-size: 20px; }
.interpretation-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}
.next-experiment-section {
  margin-top: 28px;
  padding-inline: 34px;
  border: 0;
  border-radius: 22px;
  background: #17202a;
  color: #fff;
}
.next-experiment-section .eyebrow { color: #9eb7ff; }
.next-experiment-section h2 { color: #fff; }
.next-experiment-section .section-intro > p:not(.eyebrow) { color: #c8d1da; }
.next-principles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 28px 0;
}
.next-principles div {
  display: grid;
  gap: 6px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 13px;
  background: rgba(255, 255, 255, .05);
}
.next-principles strong {
  color: #fff;
  font-size: 22px;
}
.next-principles span {
  color: #c8d1da;
  font-size: 13px;
}
.next-experiment-section .button:not(.primary) {
  border-color: #8997a8;
  background: transparent;
  color: #fff;
}
.compact-ledger > div { grid-template-columns: 240px 190px minmax(0, 1fr); }
.artifact-detail .actions { margin-top: 20px; }

.logic-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 13px;
  margin: 28px 0;
}
.logic-summary-grid article {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}
.logic-summary-grid span {
  display: block;
  color: var(--blue);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.logic-summary-grid strong {
  display: block;
  margin: 8px 0;
  font-size: 22px;
}
.logic-summary-grid p {
  margin: 0;
  color: var(--muted);
}
.audit-detail > div > h3 { margin-top: 30px; }
.audit-detail blockquote {
  margin: 28px 0 0;
  padding: 22px;
  border-left: 4px solid var(--blue);
  background: var(--blue2);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
}
.compact-questions li { color: var(--ink); }
.compact-questions p { color: var(--muted) !important; }

.entry-hero {
  max-width: 1000px;
  padding-bottom: 52px;
}
.entry-hero .lead { max-width: 760px; }
.entry-paths {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}
.entry-path {
  display: grid;
  align-content: start;
  min-height: 220px;
  padding: 23px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: #fff;
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.entry-path:hover {
  transform: translateY(-2px);
  border-color: #9eb0e7;
  box-shadow: 0 14px 30px rgba(36, 87, 214, .08);
}
.entry-path > span {
  color: var(--blue);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.entry-path > strong {
  margin: 18px 0 9px;
  font-size: 21px;
  line-height: 1.35;
}
.entry-path > small {
  color: var(--muted);
  font-size: 14px;
}
.featured-path {
  border-color: #9eb0e7;
  background: var(--blue2);
}
.reader-notes {
  max-width: 900px;
  margin-top: 24px;
}
.entry-section { margin-bottom: 68px; }
.entry-section .section-head { margin-bottom: 24px; }
.review-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 0;
}
.review-grid article { min-height: 230px; }
.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.topic-grid .discussion-card {
  align-content: start;
  min-height: 190px;
  margin: 0;
}
.featured-topic {
  border-color: #9eb0e7;
  background: var(--blue2);
}
.compact-feedback { margin-top: 0; }
.compact-feedback > div:first-child { max-width: 620px; }

@media (max-width: 900px) {
  .topbar nav { display: none; }
  .answer-grid,
  .interpretation-grid,
  .entry-paths { grid-template-columns: 1fr; }
  .compact-ledger > div {
    grid-template-columns: minmax(0, 1fr);
    min-width: 0;
  }
  .compact-ledger > div > * { min-width: 0; }
  .answer-grid article,
  .entry-path { min-height: auto; }
  .modern-baseline-card {
    grid-template-columns: 1fr;
    gap: 9px;
  }
  .next-principles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  .reading-page { width: min(100% - 28px, 1060px); }
  .logic-summary-grid,
  .topic-grid,
  .intuition-card { grid-template-columns: 1fr; }
  .intuition-card > div + div {
    border-top: 1px solid #b8c8f3;
    border-left: 0;
  }
  .page-boundary {
    display: grid;
    width: 100%;
    border-radius: 12px;
  }
  .quick-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 5px;
    scrollbar-width: thin;
  }
  .quick-nav a { flex: 0 0 auto; }
  .next-experiment-section {
    margin-inline: -14px;
    padding-inline: 22px;
  }
}
@media (max-width: 560px) {
  html { scroll-padding-top: 70px; }
  :where(section[id], header[id]) { scroll-margin-top: 70px; }
  .compact-hero { padding-top: 38px; }
  .reading-page .discussion-hero h1 {
    font-size: clamp(38px, 11vw, 48px);
    line-height: 1.08;
  }
  .answer-grid,
  .interpretation-grid { gap: 10px; }
  .next-principles,
  .review-grid { grid-template-columns: 1fr; }
  .next-experiment-section { border-radius: 16px; }
  .entry-hero { padding-top: 46px; }
  .entry-path { padding: 20px; }
  .reader-notes summary,
  .technical-detail summary { padding: 15px 16px; }
  .reader-notes > div,
  .technical-detail > div { padding: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .entry-path { transition: none; }
}