.academy-shell {
  --academy-ink: var(--color-text-primary);
  --academy-muted: var(--color-text-muted);
  --academy-line: var(--color-border);
  --academy-paper: var(--color-surface);
  color: var(--academy-ink);
}
.academy-shell a { color: inherit; text-underline-offset: .25em; }
.academy-shell a:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 5px; }
.academy-shell h1, .academy-shell h2, .academy-shell h3 { color: inherit; letter-spacing: -.035em; }
.academy-shell h1 { font-size: clamp(2.6rem, 5.8vw, 5.6rem); line-height: 1.03; font-weight: 400; margin: 0 0 1.5rem; }
.academy-shell h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 400; }
.academy-eyebrow { font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 650; margin: 0 0 1.2rem; }
.academy-intro { display: grid; grid-template-columns: minmax(0, 1.8fr) minmax(260px, 1fr); gap: 4rem; align-items: center; padding: 3.5rem 0 4.5rem; }
.academy-intro h1 em { color: #607560; font-weight: 400; }
.academy-lead { max-width: 44rem; font-size: 1.12rem; line-height: 1.75; color: var(--academy-muted); margin-bottom: 1.75rem; }
.academy-button { display: inline-flex; align-items: center; gap: 2.7rem; padding: .95rem 1.3rem; background: var(--color-myco); color: #fff !important; text-decoration: none; font-size: .86rem; border-radius: 3px; }
.academy-button:hover { background: var(--color-myco-hover); }
.academy-overview { background: var(--color-bg-secondary); border: 1px solid var(--color-border); border-radius: 3px; padding: 2rem; }
.academy-overview-count { display: flex; align-items: center; gap: 1.5rem; padding: 1rem 0 1.75rem; }
.academy-overview-count strong { font-family: Georgia, serif; font-weight: 400; font-size: clamp(5rem, 8vw, 7.4rem); line-height: 1; letter-spacing: -.07em; }
.academy-overview-count > span { font-size: 1.05rem; line-height: 1.6; }
.academy-overview-detail { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 0; border-block: 1px solid #bcc8b4; font-size: .73rem; }
.academy-overview > p { font-size: .83rem; line-height: 1.7; margin: 1.25rem 0 0; color: #4f6151; }
.academy-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 1.7rem; }
.academy-section-heading h2 { margin: 0; }
.academy-section-heading p:last-child { color: var(--academy-muted); font-size: .87rem; margin-bottom: .2rem; }
.academy-section-heading .academy-eyebrow { margin-bottom: .7rem; }
.academy-discipline-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.academy-accent-biology { --discipline-accent: #4e6955; --discipline-soft: #e3eadd; }
.academy-accent-chemistry { --discipline-accent: #96663f; --discipline-soft: #efe2d3; }
.academy-accent-ecology { --discipline-accent: #657047; --discipline-soft: #e8ead8; }
.academy-accent-physics { --discipline-accent: #496b7b; --discipline-soft: #dfe9ec; }
.academy-accent-mathematics { --discipline-accent: #716080; --discipline-soft: #eae3ed; }
.academy-accent-economics { --discipline-accent: #836342; --discipline-soft: #ece5d8; }
.academy-discipline { position: relative; min-height: 280px; display: flex; flex-direction: column; padding: 1.7rem; background: var(--academy-paper); border: 1px solid var(--academy-line); border-top: 3px solid var(--discipline-accent, #4e6955); border-radius: 3px; transition: transform 180ms ease, box-shadow 180ms ease; }
.academy-discipline:hover { transform: translateY(-3px); box-shadow: 0 8px 20px #20352d0c; }
.academy-discipline-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.academy-discipline-code { display: inline-block; color: var(--discipline-accent, #4e6955); background: var(--discipline-soft, #e3eadd); font-size: .64rem; font-weight: 700; letter-spacing: .13em; padding: .55rem .7rem; border-radius: 2px; }
.academy-sequence { font-family: Georgia, serif; font-size: 1.5rem; color: #6f796e; }
.academy-discipline h3 { font-size: 1.85rem; margin: 0 0 .8rem; }
.academy-discipline h3 a { text-decoration: none; }
.academy-discipline h3 a::after { content: ""; position: absolute; inset: 0; }
.academy-discipline p { font-size: .88rem; color: var(--academy-muted); line-height: 1.65; }
.academy-discipline-footer { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 1rem; border-top: 1px solid var(--academy-line); font-size: .72rem; }
.academy-discipline-footer > span:last-child { font-size: 1.3rem; }
.academy-field-note { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; padding: 2.5rem 0; margin-top: 3.5rem; border-block: 1px solid var(--academy-line); }
.academy-field-note p { font-size: .9rem; line-height: 1.75; color: var(--academy-muted); }
.academy-field-note a { font-size: .84rem; font-weight: 600; }
.academy-trail { display: flex; flex-wrap: wrap; gap: .7rem; font-size: .75rem; color: var(--academy-muted); padding: 1.5rem 0; }
.academy-trail a { text-decoration: none; }
.academy-discipline-intro { border-bottom: 1px solid var(--academy-line); padding: 1.5rem 0 2.5rem; margin-bottom: 3rem; }
.academy-discipline-intro > .academy-discipline-code { float: right; margin: 0 0 1rem 1rem; font-size: .95rem; padding: 1.3rem; }
.academy-discipline-intro h1 { font-size: clamp(2.5rem, 5vw, 4.4rem); }
.academy-metadata { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1.4rem; font-size: .7rem; color: var(--academy-muted); }
.academy-metadata > span + span { position: relative; }
.academy-metadata > span + span::before { content: "·"; position: absolute; left: -.8rem; }
.academy-course-layout { display: grid; grid-template-columns: minmax(0, 2fr) minmax(240px, 1fr); gap: 3rem; }
.academy-lesson-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--academy-line); }
.academy-lesson-list > li { display: grid; grid-template-columns: 2.2rem minmax(0, 1fr) 2.4rem; gap: 1.2rem; padding: 1.8rem 0; border-bottom: 1px solid var(--academy-line); }
.academy-lesson-number { font-family: Georgia, serif; font-size: 1.55rem; color: #6b7d6c; }
.academy-lesson-list h3 { font-size: 1.7rem; margin: .7rem 0; }
.academy-lesson-list h3 a { text-decoration: none; }
.academy-lesson-list h3 a:hover { text-decoration: underline; }
.academy-lesson-list p { font-size: .87rem; color: var(--academy-muted); line-height: 1.65; margin-bottom: 0; }
.academy-round-link { align-self: center; display: grid; place-items: center; border: 1px solid var(--academy-line); border-radius: 50%; width: 2.4rem; height: 2.4rem; text-decoration: none; }
.academy-course-aside { align-self: start; padding: 2rem; background: #e7ecdf; border: 1px solid #d5dfca; border-radius: 3px; }
.academy-course-aside h2 { font-size: 2rem; }
.academy-course-aside p { font-size: .88rem; line-height: 1.75; }
.academy-course-aside .academy-small { font-size: .74rem; color: var(--academy-muted); }
.academy-course-aside a { font-size: .83rem; }
.academy-connections { border-top: 1px solid var(--academy-line); margin-top: 4rem; padding-top: 2rem; }
.academy-link-list { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.5rem; }
.academy-link-list a { display: flex; align-items: center; gap: 1.5rem; padding: .8rem 1rem; border: 1px solid var(--academy-line); background: var(--academy-paper); text-decoration: none; font-size: .85rem; }
.academy-reading-header { max-width: 900px; padding: 2rem 0 3.5rem; }
.academy-reading-header h1 { font-size: clamp(2.7rem, 5.3vw, 4.7rem); max-width: 840px; }
.academy-reading-layout { display: grid; grid-template-columns: 235px minmax(0, 1fr); gap: 4rem; }
.academy-reading-nav { align-self: start; position: sticky; top: 130px; }
.academy-reading-nav ol { list-style: none; padding: 0; margin: 0; }
.academy-reading-nav li a { display: flex; gap: .75rem; padding: .85rem .75rem; font-size: .79rem; text-decoration: none; line-height: 1.6; border-left: 2px solid var(--academy-line); }
.academy-reading-nav li a span { font-size: .65rem; padding-top: .2rem; color: var(--academy-muted); }
.academy-reading-nav a.is-current { background: #e8ece1; border-left-color: #456549; font-weight: 600; }
.academy-section-nav { display: grid; gap: .65rem; padding: 2rem .75rem; }
.academy-section-nav .academy-eyebrow { margin-bottom: .2rem; }
.academy-section-nav a { font-size: .76rem; color: var(--academy-muted); text-decoration: none; }
.academy-section-nav a:hover { text-decoration: underline; }
.academy-reading-body { min-width: 0; max-width: 760px; }
.academy-reading-body section { scroll-margin-top: 150px; }
.academy-concept-note { padding: 1.5rem 2rem; background: #e7ecdf; border: 1px solid #d6dfcd; border-left: 3px solid #687e5c; border-radius: 2px; margin-bottom: 2.7rem; }
.academy-concept-note h2 { font-size: 1.35rem; margin: 0 0 .85rem; }
.academy-concept-note ul { padding-left: 1.15rem; margin: 0; font-size: .88rem; line-height: 1.8; }
.academy-reading-section { margin-bottom: 2.5rem; }
.academy-reading-section > h2, .academy-practice h2 { font-size: 1.8rem; margin-bottom: 1rem; }
.academy-safe-prose { line-height: 1.9; font-size: 1.04rem; color: #34463b; }
.academy-safe-prose p { margin-bottom: 1.45rem; }
.academy-safe-prose > :last-child { margin-bottom: 0; }
.academy-safe-prose h2, .academy-safe-prose h3, .academy-safe-prose h4 { margin: 2rem 0 1rem; }
.academy-safe-prose h3 { font-size: 1.4rem; }
.academy-safe-prose a { text-decoration-thickness: 1px; text-decoration-color: #718568; }
.academy-safe-prose ul, .academy-safe-prose ol { padding-left: 1.5rem; }
.academy-safe-prose table { display: block; overflow-x: auto; max-width: 100%; border-collapse: collapse; font-size: .87rem; }
.academy-safe-prose td, .academy-safe-prose th { padding: .65rem; border: 1px solid var(--academy-line); }
.academy-safe-prose blockquote { border-left: 3px solid #829179; margin: 1.5rem 0; padding: .5rem 1.5rem; }
.academy-safe-prose pre { padding: 1rem; background: #e7ecdf; border-radius: 2px; overflow-x: auto; }
.academy-practice { border: 1px solid #d9d3c0; background: #f4f0e4; padding: 2rem; margin: 2rem 0; border-radius: 3px; }
.academy-practice .academy-eyebrow { color: #826244; }
.academy-evidence-note { color: var(--academy-muted); font-size: .75rem; line-height: 1.75; padding-top: 1.5rem; border-top: 1px solid var(--academy-line); }
.academy-lesson-pagination { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 2rem; }
.academy-lesson-pagination > a { display: flex; flex-direction: column; padding: 1.2rem; background: var(--academy-paper); border: 1px solid var(--academy-line); text-decoration: none; }
.academy-lesson-pagination > a:last-child { text-align: right; }
.academy-lesson-pagination span { font-size: .68rem; color: var(--academy-muted); margin-bottom: .65rem; }
.academy-lesson-pagination strong { font-family: Georgia, serif; font-weight: 400; font-size: 1.2rem; line-height: 1.35; }
.academy-related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.2rem; margin-top: 1.8rem; }
.academy-related-grid > article { padding: 1.5rem; background: var(--academy-paper); border: 1px solid var(--academy-line); }
.academy-related-grid h3 { font-size: 1.45rem; margin: 1rem 0; }
.academy-related-grid h3 a { text-decoration: none; }
.academy-related-grid h3 a:hover { text-decoration: underline; }
.academy-related-grid p { color: var(--academy-muted); font-size: .84rem; line-height: 1.6; margin-bottom: 0; }
.academy-empty { border: 1px solid var(--academy-line); background: var(--academy-paper); padding: 2rem; }
@media (max-width: 1050px) {
  .academy-intro { gap: 2rem; }
  .academy-reading-layout { grid-template-columns: 200px minmax(0, 1fr); gap: 2rem; }
  .academy-course-layout { gap: 2rem; }
  .academy-discipline-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .academy-intro, .academy-field-note, .academy-course-layout, .academy-reading-layout { grid-template-columns: minmax(0, 1fr); }
  .academy-intro { padding: 2rem 0 3rem; }
  .academy-overview { padding: 1.5rem; }
  .academy-overview-count { padding: .5rem 0 1rem; }
  .academy-overview-count strong { font-size: 4.5rem; }
  .academy-section-heading { align-items: start; flex-direction: column; gap: .7rem; }
  .academy-field-note { gap: 1rem; margin-top: 2rem; }
  .academy-reading-header { padding: 1rem 0 2rem; }
  .academy-reading-nav { position: static; }
  .academy-reading-nav ol { display: flex; flex-wrap: wrap; gap: .5rem; }
  .academy-reading-nav li { flex: 1 1 150px; }
  .academy-section-nav { display: none; }
  .academy-reading-body { max-width: none; }
  .academy-related-grid { grid-template-columns: minmax(0, 1fr); }
  .academy-reading-body section { scroll-margin-top: 110px; }
  .academy-discipline-intro > .academy-discipline-code { font-size: .7rem; padding: .7rem; }
}
@media (max-width: 480px) {
  .academy-discipline-grid { grid-template-columns: minmax(0, 1fr); }
  .academy-discipline { min-height: 240px; padding: 1.4rem; }
  .academy-lesson-list > li { grid-template-columns: 1.6rem minmax(0, 1fr); gap: .8rem; }
  .academy-round-link { display: none; }
  .academy-concept-note, .academy-practice { padding: 1.35rem; }
  .academy-lesson-pagination { gap: .6rem; }
  .academy-lesson-pagination > a { padding: 1rem; }
  .academy-lesson-pagination strong { font-size: 1.05rem; }
  .academy-connections { margin-top: 2.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  .academy-discipline { transition: none; }
  .academy-discipline:hover { transform: none; }
}