/* Prototype 03: shared foundation, existing subpages, then semantic homepage sections. */
:root {
  --primary: #145a46;
  --primary-dark: #103e32;
  --primary-soft: #e5ece4;
  --text-main: #23332c;
  --text-muted: #53645b;
  --text-light: #f7f5ee;
  --text-on-dark: #bdcdc4;
  --bg-white: #fffef9;
  --bg-warm: #f5f3ed;
  --bg-subtle: #e9ede5;
  --bg-dark: #092923;
  --bg-deepest: #061c18;
  --precision: #8ad7d3;
  --border-color: #c3cdc1;
  --border-on-dark: #486459;
  --error: #a22222;
  --focus: #145a46;

  --font-body: 'Plus Jakarta Sans', sans-serif;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-h1: clamp(2.5rem, 4.72vw, 4.25rem);
  --text-h2: clamp(2rem, 3.3vw, 3rem);
  --text-h3: clamp(1.25rem, 1.75vw, 1.55rem);
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --section-padding: clamp(4rem, 7vw, 7rem) 0;
  --gutter: clamp(1.5rem, 3.5vw, 3rem);
  --grid-gap: 1.5rem;
  --container-max: 80rem;
  --radius-sm: 3px;
  --radius-md: 8px;
  --motion-instant: 120ms;
  --motion-fast: 180ms;
  --motion-standard: 280ms;
  --motion-editorial: 420ms;
  --motion-cinematic: 620ms;
  --motion-signature: 760ms;
  --motion-ease: cubic-bezier(0.2, 0, 0, 1);
  --motion-ease-editorial: cubic-bezier(0.16, 1, 0.3, 1);
  --motion-ease-exit: cubic-bezier(0.4, 0, 1, 1);
  --motion-travel: 20px;
  --motion-stagger: 60ms;
  --motion-arrow: 4px;
  --motion-media-scale: 1.025;
  --motion-hover-scale: 1.02;
  --motion-modal-scale: 0.985;
  --motion-menu-stagger: 20ms;
  --transition: var(--motion-fast) var(--motion-ease);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }
html { font-size: 16px; scroll-behavior: smooth; scroll-padding-top: 6rem; }
body { font-family: var(--font-body); line-height: 1.75; color: var(--text-main); background: var(--bg-white); -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { font-weight: 600; line-height: 1.15; letter-spacing: -0.035em; margin-bottom: var(--space-md); }
h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
p { color: var(--text-muted); margin-bottom: var(--space-md); }
a { color: var(--primary); text-underline-offset: 0.22em; }
a:hover { text-decoration-thickness: 2px; }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 5px; }
[tabindex="-1"]:focus:not(:focus-visible) { outline: none; }
[id] { scroll-margin-top: 1rem; }
.container { width: calc(100% - var(--gutter) * 2); max-width: var(--container-max); margin-inline: auto; }
section { padding: var(--section-padding); }
.section--warm { background: var(--bg-warm); }
.section--subtle { background: var(--bg-subtle); }
.editorial-grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--grid-gap); }
.editorial-grid > * { min-width: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: var(--gutter); top: 0.75rem; z-index: 2000; padding: 0.75rem 1rem; color: var(--bg-deepest); background: var(--bg-white); transform: translateY(-200%); }
.skip-link:focus { transform: none; outline: 3px solid var(--primary); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 1.25rem; min-height: 48px; max-width: 100%; padding: 0.85rem 1.4rem; border: 1px solid transparent; border-radius: var(--radius-sm); font-size: var(--text-sm); font-weight: 600; line-height: 1.45; text-decoration: none; transition: background-color var(--transition), color var(--transition), border-color var(--transition); cursor: pointer; text-align: center; }
.btn--primary { background: var(--primary); color: var(--text-light); }
.btn--secondary { background: transparent; color: var(--primary); border-color: currentColor; }
.btn--light { color: var(--bg-dark); background: var(--text-light); }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 0.75rem 1.5rem; }
.text-link { display: inline-flex; align-items: center; gap: 0.75rem; min-height: 44px; padding-block: 0.5rem; font-size: var(--text-sm); font-weight: 500; text-decoration: underline; text-decoration-color: var(--border-on-dark); }
@media (hover: hover) and (pointer: fine) {
  .btn--primary:hover { background: var(--primary-dark); }
  .btn--secondary:hover { background: var(--primary-soft); }
  .btn--light:hover { background: #dce6db; }
}

/* The mobile menu is an ordinary disclosure. Without JS every link stays visible. */
.header { position: sticky; top: 0; z-index: 100; background: var(--bg-white); border-bottom: 1px solid var(--border-color); }
.header__container { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.header__logo { flex-shrink: 0; text-decoration: none; }
.header__logo-text { display: block; font-size: 1rem; font-weight: 700; line-height: 1.3; letter-spacing: -0.03em; color: var(--primary-dark); }
.nav__list { display: flex; align-items: center; gap: clamp(0.75rem, 2.1vw, 2rem); list-style: none; }
.nav__link { display: inline-flex; align-items: center; min-height: 44px; font-size: var(--text-sm); font-weight: 500; color: var(--text-main); text-decoration: none; }
.nav__link:hover, .nav__link[aria-current] { text-decoration: underline; text-decoration-thickness: 1px; }
.nav__toggle { display: none; align-items: center; justify-content: center; width: 44px; height: 44px; flex-shrink: 0; border: 1px solid var(--border-color); border-radius: var(--radius-sm); background: transparent; color: inherit; font-size: 1.4rem; }
.header--home { background: var(--bg-dark); border-color: var(--border-on-dark); color: var(--text-light); --focus: var(--text-light); }
.header--home .header__logo-text, .header--home .nav__link { color: var(--text-light); }
.header--home .nav__toggle { border-color: var(--border-on-dark); }

/* Internal pages: the homepage system at a quieter, institutional cadence. */
.header--internal { background: var(--bg-dark); border-color: var(--border-on-dark); color: var(--text-light); --focus: var(--text-light); }
.header--internal .header__logo-text, .header--internal .nav__link { color: var(--text-light); }
.header--internal .nav__toggle { border-color: var(--border-on-dark); }
.internal .nav__link { position: relative; }
.internal .nav__link[aria-current] { text-decoration-thickness: 1px; }
.internal-section { padding: clamp(4.5rem, 7vw, 6.5rem) 0; }
.page-hero { background: var(--bg-dark); color: var(--text-light); border-bottom: 1px solid var(--border-on-dark); padding: clamp(3.75rem, 6vw, 5.75rem) 0 clamp(4.5rem, 7vw, 6.75rem); --focus: var(--text-light); }
.page-hero__grid { align-items: start; }
.page-hero .page-hero__label { grid-column: 1 / 4; color: var(--text-on-dark); margin: 0; }
.page-hero .page-hero__label > span { color: var(--text-on-dark); }
.page-hero__content { grid-column: 5 / 12; }
.page-hero h1 { max-width: 12ch; font-size: clamp(2.75rem, 5vw, 4.5rem); margin-bottom: 1.5rem; }
.page-hero__subtitle { max-width: 42rem; color: var(--text-on-dark); font-size: clamp(1rem, 1.4vw, 1.15rem); margin: 0; }
.internal-heading { align-items: end; border-top: 1px solid var(--border-color); padding-top: 2rem; margin-bottom: 2.5rem; }
.internal-heading .section-label { grid-column: 1 / 5; margin: 0; }
.internal-heading h2 { grid-column: 6 / -1; margin: 0; }
.about-profile__grid { align-items: center; }
.about-profile__content { grid-column: 1 / 6; }
.about-profile__content h2 { max-width: 12ch; }
.about-profile__figure { grid-column: 7 / -1; }
.about-profile__figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.vision-editorial__rows, .direction-rows { margin-left: calc((100% + var(--grid-gap)) / 12 * 5); }
.vision-editorial__row, .direction-row { display: grid; grid-template-columns: 3rem minmax(8rem, 0.65fr) minmax(0, 1.35fr); gap: 1.5rem; align-items: start; padding: 2rem 0; border-top: 1px solid var(--border-color); }
.vision-editorial__index, .direction-row__index { color: var(--text-muted); font-size: 0.75rem; font-variant-numeric: tabular-nums; margin: 0; }
.vision-editorial__row h3, .direction-row h3 { margin: 0; }
.vision-editorial__row > p:last-child, .direction-row > p:last-child { margin: 0; }
.vision-editorial__row ul { padding-inline-start: 1.15rem; }
.vision-editorial__row li + li { margin-top: 0.65rem; }
.institutional-note__grid > .section-label { grid-column: 1 / 5; margin: 0; }
.institutional-note__grid > div { grid-column: 6 / -1; }
.institutional-note h2 { max-width: 16ch; }
blockquote { max-width: 46rem; font-size: clamp(1.15rem, 2vw, 1.45rem); line-height: 1.65; padding-inline-start: 2rem; border-inline-start: 1px solid var(--primary); }
.internal-cta { background: var(--primary-dark); color: var(--text-light); --focus: var(--text-light); }
.internal-cta__grid > h2 { grid-column: 1 / 6; max-width: 14ch; margin: 0; }
.internal-cta__content { grid-column: 7 / -1; }
.internal-cta__content p { max-width: 36rem; color: var(--text-on-dark); }
.internal-cta .text-link { color: var(--text-light); }
.contact-directory__intro { grid-column: 1 / 5; }
.contact-directory__intro h2 { max-width: 10ch; }
.contact-rows { grid-column: 6 / -1; margin: 0; }
.contact-row { display: grid; grid-template-columns: minmax(9rem, 0.7fr) minmax(0, 1.3fr); gap: 1.5rem; padding: 1.5rem 0; border-top: 1px solid var(--border-color); }
.contact-row dt { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.contact-row dd { min-width: 0; color: var(--text-muted); overflow-wrap: anywhere; }
.contact-row a { display: inline-flex; align-items: center; gap: 0.5rem; min-height: 44px; }
.contact-form__heading { grid-column: 1 / 5; }
.contact-form__heading h2 { max-width: 12ch; }
.contact-form__grid > div:last-child { grid-column: 6 / -1; }
.contact-form__intro { max-width: 24rem; }
.form { display: grid; gap: 1.25rem; max-width: 42rem; }
.form__field { display: grid; gap: 0.5rem; }
.form label { font-size: var(--text-sm); font-weight: 600; }
.form label span { color: var(--text-muted); font-weight: 400; }
.form input, .form textarea { display: block; width: 100%; min-height: 48px; padding: 0.9rem 1rem; color: var(--text-main); background: var(--bg-white); border: 1px solid #738579; border-radius: var(--radius-sm); }
.form textarea { resize: vertical; }
.form input:hover, .form textarea:hover { border-color: var(--primary); }
.form input:focus-visible, .form textarea:focus-visible { outline-offset: 2px; }
.form input.error, .form textarea.error { border: 2px solid var(--error); }
.form input.success, .form textarea.success { border-color: var(--primary); }
.form .btn { justify-self: start; }
.field-help { color: var(--text-muted); }
.error-message { min-height: 1.4em; color: var(--error); font-size: var(--text-sm); }
.error-message:empty { display: none; }
.form-status { margin: 0.5rem 0 0; }
.form-status:empty { display: none; }
.location__grid > div:first-child { grid-column: 1 / 6; }
.location__details { grid-column: 7 / -1; padding-top: 0.25rem; }
.location__address { color: var(--text-main); font-weight: 500; }
.admissions-overview__grid > div:first-child { grid-column: 1 / 6; }
.admissions-overview__copy { grid-column: 7 / -1; max-width: 40rem; }
.text-link--dark { color: var(--primary-dark); text-decoration-color: var(--border-color); }
.admissions-process__heading { grid-column: 1 / 5; }
.admissions-process__heading h2 { max-width: 10ch; }
.admissions-flow { grid-column: 6 / -1; list-style: none; counter-reset: admissions; }
.admissions-flow li { counter-increment: admissions; display: grid; grid-template-columns: 3.5rem 1fr; gap: 1rem; padding: 1.4rem 0; border-top: 1px solid var(--border-color); }
.admissions-flow li::after { content: counter(admissions, decimal-leading-zero); grid-column: 1; grid-row: 1; color: var(--text-muted); font-size: 0.75rem; font-variant-numeric: tabular-nums; }
.admissions-flow li span { grid-column: 2; grid-row: 1; max-width: 35rem; }
.error-page { background: var(--bg-deepest); }
.error-state { min-height: clamp(34rem, calc(100vh - 78px), 48rem); display: flex; align-items: center; background: var(--bg-deepest); color: var(--text-light); --focus: var(--text-light); }
.error-state__grid { align-items: center; }
.error-state__code { grid-column: 1 / 6; color: var(--border-on-dark); font-size: clamp(8rem, 18vw, 15rem); font-weight: 500; line-height: 0.75; letter-spacing: -0.09em; margin: 0; }
.error-state__content { grid-column: 7 / -1; }
.error-state__content .section-label, .error-state__content .section-label > span { color: var(--text-on-dark); }
.error-state__content h1 { max-width: 12ch; font-size: clamp(2.25rem, 4vw, 3.75rem); }
.error-state__content > p { max-width: 38rem; color: var(--text-on-dark); }
.error-state .text-link { color: var(--text-light); }
.footer { padding: 2.5rem 0; background: var(--bg-deepest); color: var(--text-light); text-align: center; --focus: var(--text-light); }
.footer p { color: var(--text-on-dark); font-size: var(--text-sm); margin-bottom: 0; }
.footer a { color: var(--text-light); }

/* Homepage: editorial surfaces and alignment, without generic card shells. */
.eyebrow, .section-label, .section-index { font-size: 0.75rem; font-weight: 500; letter-spacing: 0.09em; line-height: 1.7; }
.section-label { display: flex; align-items: baseline; gap: 1.5rem; margin-bottom: 2.5rem; color: var(--text-main); }
.section-label > span, .section-index { color: var(--text-muted); font-variant-numeric: tabular-nums; }
.section-index { display: block; margin-bottom: 1.25rem; }
.hero { background: var(--bg-dark); color: var(--text-light); padding: clamp(3rem, 5.5vw, 5.5rem) 0 clamp(4rem, 6vw, 6rem); --focus: var(--text-light); }
.hero__content { grid-column: 1 / 6; }
.hero__eyebrow { max-width: 33rem; color: var(--text-on-dark); margin-bottom: 1.75rem; }
.hero h1 { line-height: 1.08; letter-spacing: -0.05em; margin-bottom: 2rem; }
.hero__tagline { font-size: clamp(1.05rem, 1.4vw, 1.2rem); font-weight: 500; line-height: 1.55; color: var(--text-light); max-width: 26rem; margin-bottom: 1.25rem; }
.hero__support { color: var(--text-on-dark); font-size: 0.9375rem; margin-bottom: 2rem; max-width: 34rem; }
.hero .text-link, .ppdb .text-link { color: var(--text-light); }
.hero__media { grid-column: 7 / -1; width: 100%; align-self: center; }
.hero__image { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; }
.profile__content { grid-column: 1 / 6; }
.profile__content h2 { max-width: 12ch; margin-bottom: 2rem; }
.profile__visual { grid-column: 7 / -1; padding-top: 0.5rem; }
.profile__visual img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.editorial-facts { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1.5rem; margin-top: 1.5rem; }
.editorial-facts li { padding-block: 0.8rem; border-top: 1px solid var(--border-color); font-size: var(--text-sm); line-height: 1.6; }
.pillars { padding-top: 0; }
.pillars > .container { border-top: 1px solid var(--border-color); padding-top: clamp(3rem, 5vw, 5rem); }
.section-intro { align-items: start; margin-bottom: 3rem; }
.section-intro > :first-child { grid-column: 1 / 6; }
.section-intro > p { grid-column: 7 / -1; max-width: 38rem; margin: 0; }
.pillars__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
.pillar img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.pillar__number { font-size: 0.75rem; font-variant-numeric: tabular-nums; padding-top: 1.25rem; margin-bottom: 0.75rem; }
.pillar h3 { margin-bottom: 1rem; }
.pillar > p:last-child { margin-bottom: 0; font-size: 0.9375rem; }
.technology { background: var(--bg-dark); color: var(--text-light); --focus: var(--text-light); }
.technology .section-label, .technology .section-label > span { color: var(--precision); }
.technology h2 { font-size: clamp(2.2rem, 4.7vw, 4.25rem); margin-bottom: 3rem; }
.technology__cross { color: var(--precision); }
.technology__grid { align-items: center; }
.technology__grid > .media-frame { grid-column: 1 / 8; }
.technology__grid img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.technology__content { grid-column: 9 / -1; }
.technology__content p { color: var(--text-on-dark); font-size: 0.9375rem; }
.technology__points { list-style: none; border-top: 1px solid var(--precision); padding-top: 0.5rem; }
.technology__points li { font-size: var(--text-sm); padding: 0.75rem 0; border-bottom: 1px solid var(--border-on-dark); line-height: 1.6; }
.evidence { padding: 3rem 0; min-height: 460px; display: flex; align-items: center; }
.evidence .section-label { margin-bottom: 2rem; }
.evidence__grid { align-items: end; }
.evidence__metric { grid-column: 1 / 6; text-align: left; }
.evidence__value { font-size: clamp(5.5rem, 9vw, 8.5rem); line-height: 1; letter-spacing: -0.07em; color: var(--primary-dark); font-weight: 500; margin-bottom: 1.25rem; }
.evidence__value span { font-size: 0.6em; vertical-align: 15%; }
.evidence__label { max-width: 25rem; color: var(--text-main); font-size: 1.125rem; margin: 0; }
.evidence__copy { grid-column: 7 / 12; margin-bottom: 0; }
.life__mosaic { align-items: start; row-gap: 3rem; }
.life__mosaic img { width: 100%; object-fit: cover; }
.life__group { grid-column: 1 / 8; }
.life__group img { aspect-ratio: 16 / 9; }
.life__outdoors { grid-column: 9 / -1; margin-top: 5rem; }
.life__outdoors img { aspect-ratio: 1; }
.life__learning { grid-column: 2 / 7; }
.life__learning img { aspect-ratio: 4 / 3; }
.life__archive { grid-column: 8 / -1; align-self: end; }
.life__archive img { aspect-ratio: 3 / 2; }
figcaption { padding-top: 0.85rem; color: var(--text-muted); font-size: 0.8125rem; line-height: 1.6; }
.archive-label { font-size: 0.6875rem; letter-spacing: 0.08em; }
.ppdb { background: var(--primary-dark); color: var(--text-light); --focus: var(--text-light); }
.ppdb .section-label, .ppdb .section-label > span { color: var(--text-on-dark); }
.ppdb__grid > h2 { grid-column: 1 / 6; font-size: clamp(2.5rem, 4.2vw, 3.75rem); }
.ppdb__content { grid-column: 7 / -1; }
.ppdb__content p { color: var(--text-on-dark); }
.ppdb .actions { margin-top: 2rem; }
.footer--home { padding: 4rem 0 1.5rem; text-align: left; }
.footer__identity { grid-column: 1 / 6; }
.footer__name { display: inline-block; font-size: 1.25rem; line-height: 1.4; font-weight: 600; margin-bottom: 1rem; text-decoration: none; }
.footer__identity p { max-width: 25rem; margin-bottom: 1rem; }
.footer__nav { grid-column: 7 / 9; }
.footer__contact { grid-column: 10 / -1; font-style: normal; }
.footer__nav a, .footer__contact a { display: table; min-height: 44px; padding-block: 0.5rem; font-size: var(--text-sm); text-decoration: none; }
.footer__nav a:hover, .footer__contact a:hover { text-decoration: underline; }
.footer__copyright { border-top: 1px solid var(--border-on-dark); margin-top: 3rem; padding-top: 1.25rem; }

/* Six-column tablet composition and a linear mobile reading order. */
@media (max-width: 1100px) and (min-width: 961px) {
  .hero__content { grid-column: 1 / 7; }
  .hero__media { grid-column: 8 / -1; }
  .technology__grid > .media-frame { grid-column: 1 / 7; }
  .technology__content { grid-column: 8 / -1; }
}
@media (max-width: 960px) {
  .editorial-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .hero__content, .hero__media, .profile__content, .profile__visual,
  .technology__grid > .media-frame, .technology__content, .section-intro > :first-child,
  .section-intro > p, .ppdb__grid > h2, .ppdb__content { grid-column: 1 / -1; }
  .hero__content { max-width: 42rem; }
  .hero h1 { font-size: clamp(2.6rem, 6.4vw, 3.8rem); }
  .hero__tagline { max-width: 32rem; }
  .hero__media { margin-top: 1.5rem; }
  .profile__content h2 { max-width: 20ch; }
  .profile__content { max-width: 42rem; }
  .profile__visual { padding-top: 1rem; }
  .section-intro { gap: 1rem; }
  .section-intro .section-label { margin-bottom: 0; }
  .technology__grid { gap: 2rem; }
  .technology__content { max-width: 42rem; }
  .evidence__metric { grid-column: 1 / 4; }
  .evidence__copy { grid-column: 4 / -1; }
  .life__group { grid-column: 1 / 5; }
  .life__outdoors { grid-column: 5 / -1; margin-top: 3rem; }
  .life__learning { grid-column: 1 / 4; }
  .life__archive { grid-column: 4 / -1; }
  .footer__identity { grid-column: 1 / 4; }
  .footer__nav { grid-column: 4 / 5; }
  .footer__contact { grid-column: 5 / -1; }
  .page-hero .page-hero__label { grid-column: 1 / 3; }
  .page-hero__content { grid-column: 3 / -1; }
  .about-profile__content, .about-profile__figure { grid-column: 1 / -1; }
  .about-profile__content { max-width: 42rem; }
  .about-profile__figure { margin-top: 1.5rem; }
  .internal-heading .section-label, .institutional-note__grid > .section-label { grid-column: 1 / 3; }
  .internal-heading h2, .institutional-note__grid > div { grid-column: 3 / -1; }
  .vision-editorial__rows, .direction-rows { margin-left: calc((100% + var(--grid-gap)) / 6 * 2); }
  .vision-editorial__row, .direction-row { grid-template-columns: 2.5rem minmax(8rem, 0.6fr) minmax(0, 1.4fr); }
  .internal-cta__grid > h2 { grid-column: 1 / 3; }
  .internal-cta__content { grid-column: 3 / -1; }
  .contact-directory__intro, .contact-form__heading, .admissions-process__heading { grid-column: 1 / 3; }
  .contact-rows, .contact-form__grid > div:last-child, .admissions-flow { grid-column: 3 / -1; }
  .location__grid > div:first-child, .admissions-overview__grid > div:first-child { grid-column: 1 / 3; }
  .location__details, .admissions-overview__copy { grid-column: 3 / -1; }
  .error-state__code { grid-column: 1 / 3; }
  .error-state__content { grid-column: 3 / -1; }
}
@media (max-width: 760px) {
  .header__container { min-height: 66px; flex-wrap: wrap; gap: 0; padding-block: 0.65rem; }
  .header__logo-text { font-size: 0.875rem; }
  .header__container > .btn { display: none; }
  .nav { width: 100%; order: 3; }
  .nav__list { padding-block: 0.75rem; flex-wrap: wrap; gap: 0.25rem 1.5rem; }
  .navigation-enhanced .nav__toggle { display: inline-flex; }
  .navigation-enhanced .nav__list { display: none; }
  .navigation-enhanced .nav__list.active { display: flex; flex-direction: column; align-items: stretch; border-top: 1px solid var(--border-color); margin-top: 0.65rem; max-height: calc(100dvh - 80px); overflow-y: auto; }
  .navigation-enhanced .header--home .nav__list.active,
  .navigation-enhanced .header--internal .nav__list.active { border-color: var(--border-on-dark); }
  .nav__link { width: 100%; min-height: 44px; }
  .pillars__grid { grid-template-columns: 1fr; gap: 3rem; }
  .pillar h3 { font-size: 1.5rem; }
  .pillar > p:last-child { max-width: 37rem; }
  .life__mosaic > figure { grid-column: 1 / -1; margin-top: 0; }
  .life__mosaic .life__outdoors { grid-column: 2 / -1; }
  .footer__identity { grid-column: 1 / -1; }
  .footer__nav { grid-column: 1 / 3; }
  .footer__contact { grid-column: 4 / -1; }
  .page-hero { padding-block: 3.5rem 4.5rem; }
  .page-hero .page-hero__label, .page-hero__content, .about-profile__content,
  .about-profile__figure, .internal-heading .section-label,
  .internal-heading h2, .institutional-note__grid > .section-label,
  .institutional-note__grid > div, .internal-cta__grid > h2,
  .internal-cta__content, .contact-directory__intro, .contact-rows,
  .contact-form__heading, .contact-form__grid > div:last-child,
  .location__grid > div:first-child, .location__details,
  .admissions-overview__grid > div:first-child, .admissions-overview__copy,
  .admissions-process__heading, .admissions-flow,
  .error-state__code, .error-state__content { grid-column: 1 / -1; }
  .page-hero .page-hero__label { margin-bottom: 2.5rem; }
  .about-profile__figure { margin-top: 1rem; }
  .internal-heading { align-items: start; gap: 1rem; }
  .internal-heading .section-label { margin-bottom: 0.5rem; }
  .vision-editorial__rows, .direction-rows { margin-left: 0; }
  .vision-editorial__row, .direction-row { grid-template-columns: 2.5rem minmax(8rem, 0.65fr) minmax(0, 1.35fr); }
  .institutional-note__grid, .internal-cta__grid, .contact-directory__grid,
  .contact-form__grid, .location__grid, .admissions-overview__grid,
  .admissions-process__grid { gap: 2rem; }
  .internal-cta__grid > h2 { margin-bottom: 0; }
  .contact-directory__intro, .contact-form__heading,
  .admissions-process__heading { max-width: 38rem; }
  .error-state { min-height: 0; }
  .error-state__code { margin-bottom: 2rem; }
}
@media (max-width: 600px) {
  :root { --gutter: 1.5rem; --grid-gap: 1rem; }
  html { scroll-padding-top: 5rem; }
  .editorial-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .hero { padding-top: 2.5rem; padding-bottom: 0; }
  .hero h1 { font-size: clamp(2.4rem, 11.28vw, 3.4rem); margin-bottom: 1.5rem; }
  .hero__eyebrow { margin-bottom: 1.5rem; font-size: 0.6875rem; letter-spacing: 0.065em; }
  .hero__support { font-size: 0.9375rem; }
  .hero__media { width: calc(100% + var(--gutter) * 2); max-width: none; margin-inline: calc(-1 * var(--gutter)); margin-top: 2rem; }
  .section-label { margin-bottom: 2rem; }
  .profile__content h2 { max-width: none; }
  .editorial-facts { grid-template-columns: 1fr; }
  .technology h2 { font-size: clamp(2rem, 8.5vw, 3rem); }
  .evidence { min-height: 0; padding-block: 3.5rem; }
  .evidence__grid { gap: 2rem; }
  .evidence__metric, .evidence__copy { grid-column: 1 / -1; }
  .evidence__value { font-size: 6rem; }
  .evidence__label { max-width: 18rem; }
  .life__mosaic .life__archive { display: none; }
  .life__mosaic .life__outdoors { grid-column: 2 / -1; }
  .footer__nav { grid-column: 1 / 3; }
  .footer__contact { grid-column: 3 / -1; overflow-wrap: anywhere; }
  blockquote { padding-inline-start: 1.25rem; font-size: 1.125rem; }
  .internal-section { padding-block: 4rem; }
  .page-hero h1 { font-size: clamp(2.5rem, 12vw, 3.4rem); }
  .vision-editorial__row, .direction-row { grid-template-columns: 2.25rem 1fr; gap: 0.75rem 1rem; }
  .vision-editorial__row h3, .direction-row h3 { grid-column: 2; }
  .vision-editorial__row > :last-child, .direction-row > :last-child { grid-column: 2; }
  .contact-row { grid-template-columns: 1fr; gap: 0.4rem; }
  .location__address br { display: none; }
  .admissions-flow li { grid-template-columns: 2.5rem 1fr; }
  .error-state { padding-block: 5rem; }
  .error-state__code { font-size: clamp(7rem, 38vw, 10rem); }
}
/* M1: visible HTML first. Only an initialized observer can arm future reveals. */
.media-frame { position: relative; min-width: 0; overflow: hidden; }
[data-reveal] { --reveal-delay: calc(var(--reveal-step, 0) * var(--motion-stagger)); }
.motion-ready [data-reveal="editorial"],
.motion-ready [data-reveal="row"],
.motion-ready [data-reveal="quiet"] {
  transition: opacity var(--motion-editorial) var(--motion-ease-editorial) var(--reveal-delay), transform var(--motion-editorial) var(--motion-ease-editorial) var(--reveal-delay);
}
.motion-ready [data-reveal="quiet"] { transition-duration: var(--motion-standard); }
.motion-ready .is-pending[data-reveal="editorial"],
.motion-ready .is-pending[data-reveal="row"] { opacity: 0; transform: translateY(var(--motion-travel)); }
.motion-ready .is-pending[data-reveal="quiet"] { opacity: 0; }
.motion-ready .media-frame { transition: opacity var(--motion-cinematic) var(--motion-ease-editorial) var(--reveal-delay); }
.media-frame img { transition: transform var(--motion-cinematic) var(--motion-ease-editorial) var(--reveal-delay); }
.motion-ready .media-frame.is-pending { opacity: 0; }
.motion-ready .media-frame.is-pending img { transform: scale(var(--motion-media-scale)); }
.motion-ready .is-pending, .motion-ready .is-pending::before,
.motion-ready .media-frame.is-pending img { transition: none; }
.technology .media-frame { transition-duration: var(--motion-signature); }
.motion-ready .reveal-immediate, .motion-ready .reveal-immediate::before,
.motion-ready .reveal-immediate img { transition: none; animation: none; }

/* Draw existing rules without changing their occupied border space. */
.motion-ready .editorial-facts li, .motion-ready .technology__points,
.motion-ready .technology__points li, .motion-ready .footer__copyright,
.motion-ready .pillars > .container, .motion-ready .vision-editorial__row,
.motion-ready .direction-row, .motion-ready .contact-row,
.motion-ready .admissions-flow li { position: relative; border-color: transparent; }
.motion-ready .editorial-facts li::before, .motion-ready .technology__points::before,
.motion-ready .technology__points li::before, .motion-ready .footer__copyright::before,
.motion-ready .pillars > .container::before, .motion-ready .vision-editorial__row::before,
.motion-ready .direction-row::before, .motion-ready .contact-row::before,
.motion-ready .admissions-flow li::before {
  content: ""; position: absolute; top: -1px; left: 0; right: 0; height: 1px;
  background: var(--border-color); transform-origin: left;
  transition: transform var(--motion-editorial) var(--motion-ease-editorial) var(--reveal-delay);
}
.motion-ready .technology__points::before { background: var(--precision); }
.motion-ready .technology__points li::before { top: auto; bottom: -1px; background: var(--border-on-dark); }
.motion-ready .footer__copyright::before { background: var(--border-on-dark); }
.motion-ready .is-pending[data-reveal="row"]::before,
.motion-ready .is-pending[data-reveal="rule"]::before { transform: scaleX(0); }
@keyframes editorial-enter {
  from { opacity: 0; transform: translateY(var(--motion-travel)); }
  to { opacity: 1; transform: none; }
}
@keyframes quiet-enter { from { opacity: 0; } to { opacity: 1; } }
@keyframes media-enter { from { transform: scale(var(--motion-media-scale)); } to { transform: none; } }
.is-entering[data-hero] { animation: editorial-enter var(--motion-cinematic) var(--motion-ease-editorial) var(--reveal-delay) backwards; }
.is-entering[data-hero="c"] { animation-name: quiet-enter; }
.is-entering[data-hero="c"] img { animation: media-enter var(--motion-cinematic) var(--motion-ease-editorial) var(--reveal-delay) backwards; }

/* Shared interface vocabulary: a surface response and a precise arrow shift. */
.btn span[aria-hidden], .text-link span[aria-hidden] { display: inline-block; transition: transform var(--motion-fast) var(--motion-ease); }
.btn:focus-visible span[aria-hidden], .text-link:focus-visible span[aria-hidden] { transform: translateX(var(--motion-arrow)); }
.btn--light:focus-visible { background: #dce6db; }
.btn--primary:focus-visible { background: var(--primary-dark); }
.btn--secondary:focus-visible { background: var(--primary-soft); }
.nav-sentinel { position: absolute; top: 16px; left: 0; width: 1px; height: 1px; pointer-events: none; }
.header { transition: background-color var(--motion-standard) var(--motion-ease), border-color var(--motion-standard) var(--motion-ease); }
.header--home.is-scrolled { background: var(--bg-deepest); border-color: var(--border-on-dark); }
@supports ((backdrop-filter: blur(8px)) or (-webkit-backdrop-filter: blur(8px))) {
  .header--home.is-scrolled { background: rgb(6 28 24 / 96%); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
}
.home .nav__link { position: relative; transition: color var(--motion-fast) var(--motion-ease); }
.home .nav__link[aria-current], .home .nav__link:hover { text-decoration: none; }
.home .nav__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 5px; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: left;
  transition: transform var(--motion-fast) var(--motion-ease);
}
.home .nav__link[aria-current]::after, .home .nav__link:focus-visible::after { transform: scaleX(1); }
@media (hover: hover) and (pointer: fine) {
  .btn:hover span[aria-hidden], .text-link:hover span[aria-hidden] { transform: translateX(var(--motion-arrow)); }
  .home .nav__link:hover::after { transform: scaleX(1); }
  .media-frame:hover:not(.is-pending):not(.is-entering) img { transform: scale(var(--motion-hover-scale)); transition-delay: 0ms; }
}
@media (max-width: 760px) {
  :root { --motion-travel: 12px; --motion-stagger: 30ms; }
  html:not(.navigation-enhanced) { scroll-padding-top: 12rem; }
  [data-mobile-step] { --reveal-delay: calc(var(--reveal-mobile-step, 0) * var(--motion-stagger)); }
  .navigation-enhanced .nav__list.active { animation: quiet-enter var(--motion-standard) var(--motion-ease) backwards; }
  .navigation-enhanced .nav__list.active > li { animation: editorial-enter var(--motion-fast) var(--motion-ease) calc(var(--menu-step, 0) * var(--motion-menu-stagger)) backwards; }
  .navigation-enhanced .nav__list.is-closing { animation: quiet-enter var(--motion-instant) var(--motion-ease-exit) reverse both; pointer-events: none; }
  .navigation-enhanced .nav__list.is-closing > li { animation: none; }
  .home .nav__link::after { right: auto; width: 2rem; }
  .navigation-enhanced .nav__link:focus-visible { outline-offset: -3px; }
}
/* The closed lightbox adds no visible UI and takes no space in the document. */
.photo-trigger { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; border-radius: 0; background: transparent; cursor: zoom-in; }
.photo-trigger:focus-visible { outline: 3px solid var(--text-light); outline-offset: -7px; box-shadow: inset 0 0 0 4px var(--bg-deepest); }
.is-scroll-locked { overflow: hidden; }
.is-scroll-locked, .is-restoring-scroll { scroll-behavior: auto !important; }
.photo-lightbox {
  position: fixed; inset: 0; width: 100%; height: 100vh; height: 100dvh;
  max-width: none; max-height: none; margin: 0; border: 0; padding: 5rem 3rem 3rem;
  overflow: hidden; background: transparent; color: var(--text-light); --focus: var(--text-light);
  opacity: 0; transition: opacity var(--motion-instant) var(--motion-ease-exit);
}
.photo-lightbox[open] { display: grid; place-items: center; }
.photo-lightbox::backdrop { background: rgb(3 16 13 / 97%); opacity: 0; transition: opacity var(--motion-instant) var(--motion-ease-exit); }
.photo-lightbox.is-open, .photo-lightbox.is-open::backdrop { opacity: 1; transition-duration: var(--motion-standard); transition-timing-function: var(--motion-ease); }
.photo-lightbox__image {
  width: auto; height: auto; max-width: min(100%, var(--photo-max-width, 1080px)); max-height: calc(100vh - 8rem); max-height: calc(100dvh - 8rem);
  min-width: 0; min-height: 0; object-fit: contain;
  transform: scale(var(--motion-modal-scale)); transition: transform var(--motion-standard) var(--motion-ease-editorial);
}
.photo-lightbox.is-open .photo-lightbox__image { transform: none; }
.photo-lightbox__close {
  position: absolute; top: max(1rem, env(safe-area-inset-top)); right: max(1rem, env(safe-area-inset-right));
  display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid var(--border-on-dark);
  border-radius: var(--radius-sm); background: var(--bg-deepest); color: var(--text-light); font-size: 2rem; line-height: 1;
  transition: background-color var(--motion-fast) var(--motion-ease);
}
.photo-lightbox__close:focus-visible { background: var(--primary-dark); }
@media (hover: hover) and (pointer: fine) { .photo-lightbox__close:hover { background: var(--primary-dark); } }
@media (max-width: 760px) { .photo-lightbox { padding: 5rem 1rem 3rem; } }
/* Reduced motion is a behavioral mode, including live preference changes. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .motion-ready [data-reveal], .motion-ready [data-reveal]::before,
  .media-frame img, .btn span[aria-hidden], .text-link span[aria-hidden],
  .photo-lightbox__image { opacity: 1 !important; transform: none !important; }
}
@media print {
  [data-reveal], [data-reveal]::before, .media-frame img { opacity: 1 !important; transform: none !important; animation: none !important; }
  .photo-trigger, .photo-lightbox { display: none !important; }
}