:root {
  --navy: #0b2d5b;
  --navy-deep: #071a33;
  --blue: #2f8bff;
  --cyan: #35d9ff;
  --ice: #e6ecf2;
  --white: #ffffff;
  --ink: #0a1a33;
  --muted: #5e6d80;
  --line: rgba(11, 45, 91, 0.13);
  --shadow: 0 24px 70px rgba(7, 26, 51, 0.14);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  background: #f7faff;
  font-family: Montserrat, Avenir, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
img { max-width: 100%; display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -60px; left: 20px; z-index: 200; padding: 12px 18px; color: white; background: var(--blue); border-radius: 10px; transition: top .2s; }
.skip-link:focus { top: 16px; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(11,45,91,.10);
}
.nav-shell { width: min(1180px, calc(100% - 40px)); height: 78px; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.wordmark { display: inline-flex; align-items: center; text-decoration: none; }
.wordmark img { width: 194px; height: 51px; object-fit: contain; object-position: center; }
.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a { position: relative; color: rgba(10,26,51,.72); text-decoration: none; font-size: 13px; font-weight: 650; }
.main-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 1px; background: var(--cyan); transition: right .25s; }
.main-nav > a:not(.nav-cta):hover::after, .main-nav > a:not(.nav-cta):focus-visible::after { right: 0; }
.main-nav .nav-cta { padding: 11px 17px; color: var(--navy); border: 1px solid rgba(11,45,91,.20); border-radius: 999px; }
.main-nav .nav-cta:hover { border-color: var(--blue); background: rgba(47,139,255,.07); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 11px; color: var(--navy); background: transparent; border: 0; border-radius: 12px; }
.menu-toggle span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: currentColor; transition: transform .25s, opacity .25s; }

.hero {
  position: relative;
  min-height: 100vh;
  padding: 148px max(24px, calc((100% - 1180px) / 2)) 50px;
  overflow: hidden;
  color: white;
  background:
    radial-gradient(circle at 76% 31%, rgba(47,139,255,.24), transparent 28%),
    radial-gradient(circle at 16% 88%, rgba(53,217,255,.09), transparent 30%),
    linear-gradient(135deg, #06172d, #0b2d5b 67%, #092449);
}
.hero::before { content: ""; position: absolute; inset: 0; opacity: .18; background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to bottom, black, transparent 82%); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; gap: 72px; align-items: center; width: min(1180px, 100%); margin: 0 auto 72px; }
.eyebrow { margin: 0 0 18px; color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .2em; }
.hero .eyebrow { color: var(--cyan); }
.hero h1 { max-width: 760px; margin: 0; font-size: clamp(45px, 5.6vw, 79px); line-height: .99; letter-spacing: -.055em; }
.hero h1 span { color: transparent; background: linear-gradient(90deg, #62e4ff, #2f8bff); background-clip: text; -webkit-background-clip: text; }
.hero-lead { max-width: 660px; margin: 28px 0 0; color: rgba(255,255,255,.74); font-size: clamp(17px, 1.6vw, 21px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 35px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 51px; padding: 0 23px; border-radius: 999px; text-decoration: none; font-size: 13px; font-weight: 750; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: #04172d; background: linear-gradient(120deg, var(--cyan), #79ecff); box-shadow: 0 12px 35px rgba(53,217,255,.22); }
.button-ghost { color: white; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.045); }
.button-ghost:hover { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.08); }
.hero-note { margin: 26px 0 0; color: rgba(255,255,255,.46); font-size: 12px; }
.hero-visual { position: relative; min-height: 500px; display: grid; place-items: center; }
.hero-visual::before { content: ""; position: absolute; width: 360px; height: 360px; border: 1px solid rgba(53,217,255,.15); border-radius: 50%; box-shadow: inset 0 0 70px rgba(47,139,255,.08), 0 0 100px rgba(47,139,255,.12); }
.hero-visual img { position: relative; z-index: 2; width: min(520px, 86vw); border: 1px solid rgba(53,217,255,.14); border-radius: 28px; box-shadow: 0 28px 90px rgba(0,0,0,.28); }
.orbit { position: absolute; border: 1px solid rgba(53,217,255,.21); border-radius: 50%; }
.orbit::after { content: ""; position: absolute; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 16px var(--cyan); }
.orbit-one { width: 430px; height: 430px; animation: spin 20s linear infinite; }
.orbit-one::after { top: 40px; right: 60px; }
.orbit-two { width: 520px; height: 340px; transform: rotate(-17deg); animation: float 7s ease-in-out infinite; }
.orbit-two::after { left: 60px; bottom: 48px; }
.signal { position: absolute; z-index: 3; display: grid; grid-template-columns: 9px auto; column-gap: 8px; padding: 10px 13px; color: white; background: rgba(7,26,51,.78); border: 1px solid rgba(255,255,255,.12); border-radius: 12px; backdrop-filter: blur(12px); box-shadow: 0 10px 40px rgba(0,0,0,.2); }
.signal span { grid-row: span 2; align-self: center; width: 7px; height: 7px; background: var(--cyan); border-radius: 2px; box-shadow: 0 0 13px rgba(53,217,255,.8); }
.signal strong { font-size: 10px; line-height: 1; letter-spacing: .12em; }
.signal small { margin-top: 3px; color: rgba(255,255,255,.55); font-size: 8px; }
.signal-a { top: 15%; right: 0; }
.signal-b { bottom: 19%; left: -2%; }
.signal-c { right: 8%; bottom: 4%; }
.hero-metrics { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); width: min(850px, 100%); margin: auto; border-top: 1px solid rgba(255,255,255,.12); border-bottom: 1px solid rgba(255,255,255,.12); }
.hero-metrics div { display: flex; align-items: baseline; justify-content: center; gap: 10px; padding: 17px 20px; border-right: 1px solid rgba(255,255,255,.12); }
.hero-metrics div:last-child { border-right: 0; }
.hero-metrics strong { color: var(--cyan); font-size: 18px; }
.hero-metrics span { color: rgba(255,255,255,.55); font-size: 11px; }

.courses { padding: 115px max(24px, calc((100% - 1180px) / 2)) 125px; background: #f7faff; }
.section-heading { max-width: 760px; margin-bottom: 43px; }
.section-heading h2, .institutional-intro h2 { margin: 0; font-size: clamp(35px, 4vw, 55px); line-height: 1.03; letter-spacing: -.045em; }
.section-heading > p:last-child { max-width: 680px; margin: 19px 0 0; color: var(--muted); font-size: 16px; }
.pathfinder { display: grid; grid-template-columns: minmax(230px,.72fr) 1.28fr; overflow: hidden; background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.interest-list { display: flex; flex-direction: column; align-items: stretch; gap: 2px; padding: 18px; background: #eef4fa; }
.interest-chip { padding: 13px 15px; color: #425269; text-align: left; background: transparent; border: 0; border-radius: 12px; cursor: pointer; font-size: 13px; font-weight: 650; transition: color .2s, background .2s, transform .2s; }
.interest-chip:hover { color: var(--navy); background: rgba(255,255,255,.7); transform: translateX(3px); }
.interest-chip.is-active { color: white; background: var(--navy); box-shadow: 0 9px 24px rgba(11,45,91,.18); }
.path-result { min-height: 396px; display: flex; flex-direction: column; justify-content: space-between; padding: clamp(30px, 5vw, 62px); }
.result-label { margin: 0 0 15px; color: var(--blue); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.path-result h3 { max-width: 650px; margin: 0; font-size: clamp(28px,3.4vw,45px); line-height: 1.05; letter-spacing: -.04em; }
.path-result > div > p:last-child { max-width: 650px; margin: 17px 0 0; color: var(--muted); }
.path-brands { display: flex; flex-wrap: wrap; gap: 9px; margin: 30px 0; }
.path-brands span { padding: 7px 11px; color: var(--navy); background: #eaf3ff; border: 1px solid #cfe2fb; border-radius: 999px; font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.text-link { display: inline-flex; align-items: center; gap: 8px; width: fit-content; color: var(--navy); text-decoration: none; font-size: 13px; font-weight: 800; }
.text-link span { transition: transform .2s; }
.text-link:hover span { transform: translateX(4px); }
.course-grid { display: grid; grid-template-columns: 1.45fr .55fr; gap: 20px; margin-top: 22px; }
.featured-course { padding: clamp(28px, 4vw, 46px); color: white; background: linear-gradient(138deg, var(--navy-deep), #0b2d5b 62%, #125ab2); border-radius: var(--radius); box-shadow: var(--shadow); }
.course-topline { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.brand-pill, .status-pill { padding: 7px 10px; border-radius: 999px; font-size: 9px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.brand-pill { color: var(--cyan); background: rgba(53,217,255,.09); border: 1px solid rgba(53,217,255,.26); }
.status-pill { color: rgba(255,255,255,.66); background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); }
.course-body { display: grid; grid-template-columns: 1.1fr .9fr; gap: 42px; margin-top: 56px; }
.course-body h3 { margin: 0; font-size: clamp(30px,4vw,51px); line-height: 1.02; letter-spacing: -.045em; }
.course-body > div > p:last-child { color: rgba(255,255,255,.65); }
.course-facts { margin: 0; }
.course-facts div { display: flex; justify-content: space-between; gap: 18px; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.course-facts dt { color: rgba(255,255,255,.48); font-size: 11px; }
.course-facts dd { margin: 0; text-align: right; font-size: 11px; font-weight: 700; }
.course-footer { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-top: 34px; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.12); }
.course-footer p { max-width: 500px; margin: 0; color: rgba(255,255,255,.55); font-size: 11px; }
.button-light { flex: none; color: var(--ink); background: white; }
.next-courses { padding: clamp(27px,3vw,38px); background: white; border: 1px solid var(--line); border-radius: var(--radius); }
.next-courses h3 { margin: 0; font-size: 26px; line-height: 1.08; letter-spacing: -.035em; }
.next-courses > p:not(.eyebrow) { color: var(--muted); font-size: 13px; }
.mini-route { display: grid; grid-template-columns: 30px 1fr; gap: 12px; margin: 23px 0; }
.mini-route > span { display: grid; place-items: center; width: 29px; height: 29px; color: var(--blue); background: #eaf3ff; border-radius: 50%; font-size: 9px; font-weight: 800; }
.mini-route p { margin: 0; color: var(--muted); font-size: 11px; }
.mini-route strong { display: block; margin-bottom: 3px; color: var(--ink); font-size: 12px; }
.next-courses .text-link { margin-top: 12px; }

.study-invite { position: relative; min-height: 510px; margin-top: 22px; overflow: hidden; color: white; background: var(--navy-deep); border-radius: var(--radius); box-shadow: var(--shadow); isolation: isolate; }
.study-invite::after { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(90deg, rgba(4,19,38,.98) 0%, rgba(4,19,38,.91) 34%, rgba(4,19,38,.30) 72%, rgba(4,19,38,.08) 100%); }
.study-invite > img { position: absolute; z-index: -2; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.study-invite-content { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; width: min(610px, 61%); min-height: 510px; padding: clamp(34px, 6vw, 70px); }
.study-invite-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 37px; }
.study-invite-tags span { padding: 7px 11px; color: var(--cyan); background: rgba(53,217,255,.08); border: 1px solid rgba(53,217,255,.25); border-radius: 999px; font-size: 9px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.study-invite .eyebrow { color: var(--cyan); }
.study-invite h3 { max-width: 590px; margin: 0; font-size: clamp(36px, 5vw, 63px); line-height: .98; letter-spacing: -.05em; }
.study-invite-content > p:not(.eyebrow) { max-width: 530px; margin: 22px 0 29px; color: rgba(255,255,255,.72); font-size: 16px; }

.registration-card { display: grid; grid-template-columns: .74fr 1.26fr; gap: clamp(35px, 6vw, 72px); margin-top: 22px; padding: clamp(30px, 5vw, 58px); background: white; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.registration-intro h3 { margin: 0; font-size: clamp(31px, 4vw, 48px); line-height: 1.04; letter-spacing: -.045em; }
.registration-intro > p:not(.eyebrow) { margin: 20px 0 0; color: var(--muted); font-size: 14px; }
.registration-contact { display: flex; flex-direction: column; gap: 3px; margin-top: 34px; padding-top: 22px; border-top: 1px solid var(--line); }
.registration-contact span { color: var(--muted); font-size: 10px; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.registration-contact a { color: var(--navy); text-decoration: none; font-size: 15px; font-weight: 800; }
.study-form { display: grid; gap: 17px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.study-form label { display: grid; gap: 8px; color: var(--navy); font-size: 12px; font-weight: 750; }
.study-form label > span { color: var(--muted); font-weight: 500; }
.study-form input:not([type="checkbox"]), .study-form select, .study-form textarea { width: 100%; min-height: 49px; padding: 12px 14px; color: var(--ink); background: #f6f9fc; border: 1px solid rgba(11,45,91,.15); border-radius: 11px; outline: none; font: inherit; font-size: 14px; transition: border-color .2s, box-shadow .2s, background .2s; }
.study-form textarea { min-height: 105px; resize: vertical; }
.study-form input:focus, .study-form select:focus, .study-form textarea:focus { background: white; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(47,139,255,.12); }
.consent-field { display: flex !important; grid-template-columns: none; align-items: flex-start; gap: 10px !important; cursor: pointer; }
.consent-field input { flex: none; width: 18px; height: 18px; margin: 1px 0 0; accent-color: var(--blue); }
.consent-field span { line-height: 1.45; }
.form-submit { width: fit-content; border: 0; cursor: pointer; }
.form-status { min-height: 20px; margin: -4px 0 0; color: var(--blue); font-size: 12px; font-weight: 650; }

.ecosystem { padding: 115px max(24px, calc((100% - 1180px) / 2)) 0; overflow: hidden; color: white; background: var(--navy-deep); }
.section-heading-light .eyebrow { color: var(--cyan); }
.section-heading-light > p:last-child { color: rgba(255,255,255,.58); }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.filter-button { padding: 9px 14px; color: rgba(255,255,255,.62); background: rgba(255,255,255,.045); border: 1px solid rgba(255,255,255,.11); border-radius: 999px; cursor: pointer; font-size: 11px; font-weight: 700; }
.filter-button:hover, .filter-button.is-active { color: var(--navy-deep); background: var(--cyan); border-color: var(--cyan); }
.brand-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; }
.brand-card { position: relative; min-height: 183px; padding: 23px; overflow: hidden; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.09); border-radius: 18px; transition: transform .25s, background .25s, border-color .25s, opacity .2s; }
.brand-card::after { content: "↗"; position: absolute; top: 20px; right: 20px; color: rgba(53,217,255,.25); font-size: 17px; }
.brand-card:hover { transform: translateY(-5px); background: rgba(47,139,255,.12); border-color: rgba(53,217,255,.34); }
.brand-card[hidden] { display: none; }
.brand-card b { color: white; font-size: 18px; letter-spacing: -.05em; }
.brand-card b span { color: var(--blue); }
.brand-card h3 { margin: 23px 0 7px; font-size: 16px; letter-spacing: .02em; }
.brand-card p { margin: 0; color: rgba(255,255,255,.48); font-size: 10px; line-height: 1.45; }
.brand-card.religa b { font-weight: 500; }
.institutional-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; margin: 110px -999px 0; padding: 100px max(999px, calc((100vw - 1180px) / 2 + 999px)) 105px; color: var(--ink); background: #edf4fb; }
.institutional-intro blockquote { margin: 42px 0 0; padding-left: 19px; color: var(--navy); border-left: 2px solid var(--blue); font-size: 16px; font-weight: 700; }
.institutional-intro cite { display: block; margin-top: 5px; color: var(--muted); font-size: 9px; font-style: normal; font-weight: 500; letter-spacing: .1em; }
.institutional-content details { padding: 20px 0; border-bottom: 1px solid rgba(11,45,91,.14); }
.institutional-content summary { display: flex; align-items: center; justify-content: space-between; cursor: pointer; color: var(--navy); font-size: 20px; font-weight: 800; list-style: none; }
.institutional-content summary::-webkit-details-marker { display: none; }
.institutional-content summary span { color: var(--blue); font-size: 10px; }
.institutional-content details p { margin: 14px 0 0; color: var(--muted); font-size: 13px; }

.founder { padding: 115px max(24px, calc((100% - 1180px) / 2)) 125px; background: #f7faff; }
.founder-shell { display: grid; grid-template-columns: .68fr 1.32fr; gap: clamp(48px, 7vw, 92px); align-items: start; }
.founder-aside { position: sticky; top: 112px; min-height: 430px; padding: 36px; overflow: hidden; color: white; background: linear-gradient(145deg, var(--navy-deep), var(--navy) 66%, #1263c5); border-radius: var(--radius); box-shadow: var(--shadow); }
.founder-aside::after { content: ""; position: absolute; right: -86px; bottom: -100px; width: 290px; height: 290px; border: 1px solid rgba(53,217,255,.22); border-radius: 50%; box-shadow: 0 0 0 45px rgba(53,217,255,.035), 0 0 0 90px rgba(53,217,255,.025); }
.founder-aside .eyebrow { color: var(--cyan); }
.founder-mark { position: relative; z-index: 1; display: flex; align-items: center; gap: 19px; margin-top: 70px; }
.founder-mark img { width: 108px; height: 108px; padding: 12px; object-fit: contain; background: white; border-radius: 23px; box-shadow: 0 18px 50px rgba(0,0,0,.2); }
.founder-mark span { color: rgba(255,255,255,.74); font-size: 11px; font-weight: 800; line-height: 1.65; letter-spacing: .16em; }
.founder-registration { position: absolute; z-index: 1; left: 36px; bottom: 34px; display: flex; flex-direction: column; gap: 3px; }
.founder-registration span { color: rgba(255,255,255,.46); font-size: 9px; font-weight: 800; letter-spacing: .18em; }
.founder-registration strong { color: white; font-size: 14px; letter-spacing: .04em; }
.founder-content { padding-top: 8px; }
.founder-role { margin: 0 0 18px; color: var(--blue); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.founder-content h2 { max-width: 720px; margin: 0; font-size: clamp(39px, 5vw, 67px); line-height: .98; letter-spacing: -.055em; }
.founder-intro { max-width: 780px; margin: 28px 0 0; color: var(--muted); font-size: clamp(17px, 1.7vw, 20px); line-height: 1.65; }
.resume-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 42px; }
.resume-grid article { padding: 26px; background: white; border: 1px solid var(--line); border-radius: 18px; }
.resume-grid article > p { margin: 0 0 18px; color: var(--blue); font-size: 10px; font-weight: 850; letter-spacing: .18em; }
.resume-grid ul { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.resume-grid li { position: relative; padding-left: 18px; color: #40516a; font-size: 13px; line-height: 1.5; }
.resume-grid li::before { content: ""; position: absolute; top: .62em; left: 0; width: 6px; height: 6px; background: var(--blue); border-radius: 2px; }
.founder-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 31px; }
.founder-primary { color: white; background: var(--navy); box-shadow: 0 12px 32px rgba(11,45,91,.16); }
.founder-secondary { color: var(--navy); background: white; border: 1px solid var(--line); }
.founder-orcid { padding: 12px 4px; color: var(--muted); text-decoration: none; font-size: 12px; font-weight: 700; }
.founder-orcid:hover { color: var(--blue); }

.site-footer { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; padding: 50px max(24px, calc((100% - 1180px) / 2)); color: white; background: #041326; }
.footer-brand { display: inline-flex; padding: 4px; background: white; border-radius: 8px; }
.footer-brand img { width: 200px; height: 54px; object-fit: contain; object-position: center; border-radius: 5px; }
.site-footer p { margin: 5px 0 0; color: rgba(255,255,255,.42); font-size: 11px; }
.footer-cta { text-align: right; }
.footer-cta a { display: inline-block; margin-top: 3px; color: var(--cyan); text-decoration: none; font-size: 17px; font-weight: 750; }
.copyright { grid-column: 1/-1; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.08); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 0%,100% { transform: rotate(-17deg) translateY(0); } 50% { transform: rotate(-17deg) translateY(-12px); } }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 35px; }
  .hero-copy { max-width: 780px; }
  .hero-visual { min-height: 410px; }
  .course-grid { grid-template-columns: 1fr; }
  .brand-grid { grid-template-columns: repeat(3,1fr); }
  .institutional-panel { grid-template-columns: 1fr; gap: 45px; }
  .registration-card { grid-template-columns: 1fr; }
  .founder-shell { grid-template-columns: 1fr; }
  .founder-aside { position: relative; top: auto; min-height: 330px; }
  .founder-mark { margin-top: 35px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 72px; }
  .nav-shell { height: 68px; }
  .menu-toggle { display: block; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .main-nav { position: fixed; inset: 68px 0 auto; display: flex; flex-direction: column; align-items: stretch; gap: 0; padding: 20px; visibility: hidden; opacity: 0; transform: translateY(-8px); background: rgba(255,255,255,.99); border-bottom: 1px solid rgba(11,45,91,.1); box-shadow: 0 20px 50px rgba(7,26,51,.12); transition: opacity .2s, transform .2s, visibility .2s; }
  .main-nav.is-open { visibility: visible; opacity: 1; transform: none; }
  .main-nav a { padding: 15px 8px; font-size: 15px; }
  .main-nav .nav-cta { margin-top: 10px; text-align: center; }
  .hero { min-height: auto; padding-top: 120px; }
  .hero-grid { margin-bottom: 45px; }
  .hero h1 { font-size: clamp(42px,13vw,62px); }
  .hero-lead { font-size: 16px; }
  .hero-visual { min-height: 330px; }
  .hero-visual::before { width: 280px; height: 280px; }
  .orbit-one { width: 320px; height: 320px; }
  .orbit-two { width: 360px; height: 260px; }
  .signal-a { right: 0; }
  .signal-b { left: 0; }
  .hero-metrics { grid-template-columns: 1fr; }
  .hero-metrics div { justify-content: flex-start; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .hero-metrics div:last-child { border-bottom: 0; }
  .courses, .ecosystem, .founder { padding-top: 86px; }
  .pathfinder { grid-template-columns: 1fr; }
  .interest-list { flex-direction: row; overflow-x: auto; padding-bottom: 14px; scroll-snap-type: x mandatory; }
  .interest-chip { flex: 0 0 auto; scroll-snap-align: start; }
  .interest-chip:hover { transform: none; }
  .path-result { min-height: 350px; }
  .course-body { grid-template-columns: 1fr; gap: 20px; margin-top: 40px; }
  .course-footer { align-items: flex-start; flex-direction: column; }
  .study-invite { min-height: 570px; }
  .study-invite::after { background: linear-gradient(0deg, rgba(4,19,38,.98) 0%, rgba(4,19,38,.79) 62%, rgba(4,19,38,.15) 100%); }
  .study-invite > img { object-position: 68% center; }
  .study-invite-content { justify-content: flex-end; width: 100%; min-height: 570px; padding: 34px; }
  .study-invite-tags { margin-bottom: 22px; }
  .brand-grid { grid-template-columns: repeat(2,1fr); }
  .brand-card { min-height: 155px; padding: 19px; }
  .institutional-panel { margin-top: 80px; padding-top: 78px; padding-bottom: 82px; }
  .resume-grid { grid-template-columns: 1fr; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-cta { text-align: left; }
}

@media (max-width: 450px) {
  .nav-shell { width: calc(100% - 28px); }
  .hero, .courses, .ecosystem { padding-left: 18px; padding-right: 18px; }
  .wordmark img { width: 166px; height: 45px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-visual { min-height: 300px; }
  .hero-visual img { width: 310px; }
  .signal { display: none; }
  .brand-grid { grid-template-columns: 1fr; }
  .brand-card { min-height: 130px; }
  .course-topline { align-items: flex-start; flex-direction: column; }
  .course-facts div { flex-direction: column; gap: 3px; }
  .course-facts dd { text-align: left; }
  .form-row { grid-template-columns: 1fr; }
  .registration-card { padding: 25px; }
  .button { width: 100%; }
  .founder { padding-left: 18px; padding-right: 18px; }
  .founder-aside { min-height: 300px; padding: 28px; }
  .founder-mark { align-items: flex-start; flex-direction: column; margin-top: 24px; }
  .founder-mark img { width: 88px; height: 88px; }
  .founder-registration { left: 28px; bottom: 26px; }
  .founder-content h2 { font-size: 42px; }
  .resume-grid article { padding: 22px; }
  .founder-orcid { width: 100%; text-align: center; }
  .site-footer { padding-left: 20px; padding-right: 20px; }
  .footer-cta a { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}