:root{--navy:#061b2b;--navy2:#092c3b;--teal:#1f9c9c;--aqua:#9ce5dd;--paper:#f5f6f2;--white:#fff;--ink:#122b38;--muted:#526772;--line:#d9e4e6;--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:'DM Sans',sans-serif;line-height:1.6}h1,h2,h3,p{margin-top:0}h1,h2,h3{font-family:Manrope,sans-serif;letter-spacing:-.045em;line-height:1.14}a{color:inherit}button{font:inherit}img{max-width:100%}.container{width:min(var(--max),calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;top:-100px;left:10px;z-index:1000;background:#fff;padding:12px}.skip-link:focus{top:10px}
.site-header{background:var(--navy);color:#fff;border-bottom:1px solid #29414f;position:relative;z-index:5}.header-inner{min-height:86px;display:flex;align-items:center;gap:35px}.wordmark{display:inline-flex;align-items:center;gap:10px;font-family:Manrope,sans-serif;font-size:14px;letter-spacing:.045em;text-decoration:none;white-space:nowrap}.wordmark strong{font-weight:800}.wordmark-symbol{display:inline-flex;width:38px;height:38px;color:var(--aqua)}.wordmark-symbol svg{width:100%;height:100%}.site-nav{display:flex;gap:26px;margin-left:auto}.site-nav a,.footer-links a{font-size:13px;text-decoration:none;transition:color .2s}.site-nav a:hover,.footer-links a:hover{color:var(--aqua)}.header-cta{background:#143f4a;border:1px solid #3b666b;border-radius:5px;padding:10px 15px;text-decoration:none;font-weight:700;font-size:12px}.header-cta:hover{background:#1c5c64}.menu-button,.mobile-menu{display:none}
.hero{position:relative;isolation:isolate;color:#fff;background:radial-gradient(circle at 78% 30%,#14556b 0%,#0c3548 35%,#061b2b 78%);overflow:hidden}.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:repeating-radial-gradient(ellipse at 65% 105%,transparent 0 28px,rgba(112,192,196,.07) 29px 30px);opacity:.75}.hero-water{position:absolute;inset:0;pointer-events:none;background:linear-gradient(125deg,transparent 20%,rgba(92,190,204,.055) 58%,transparent 70%)}.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;min-height:585px;align-items:center;gap:60px;padding-top:65px;padding-bottom:65px}.hero h1{font-size:clamp(48px,5.4vw,79px);letter-spacing:-.075em;line-height:1.045;max-width:710px;margin:18px 0 25px}.hero h1 em{font-weight:500;color:var(--aqua);font-style:normal}.hero-lead{max-width:535px;color:#c8e1e8;font-size:17px;line-height:1.8;margin-bottom:28px}.eyebrow{font-weight:800;font-size:10px;letter-spacing:.19em;color:#317784;margin-bottom:17px}.eyebrow.light{color:var(--aqua)}.eyebrow-rule{display:inline-block;width:29px;border-top:1px solid var(--aqua);vertical-align:middle;margin-right:9px}.hero-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;border-radius:5px;font-size:12px;line-height:1.3;font-weight:800;text-decoration:none;padding:15px 19px;transition:transform .2s,background .2s;white-space:normal}.button:hover:not(.button-inactive){transform:translateY(-2px)}.button-primary{background:var(--aqua);color:#06343b}.button-primary:hover{background:#c2fff1}.button-dark{background:var(--navy2);color:#fff}.button-dark:hover{background:#15526a}.button-inactive{border:1px solid #cbd4d7;color:#6c858a;background:#edf0f0;cursor:default}.text-link{font-weight:800;font-size:13px;text-decoration:none;border-bottom:1px solid #7baeb4;padding-bottom:5px}.text-link:hover{color:var(--teal)}.light-link{color:#e4f8f7}.light-link:hover{color:var(--aqua)}.hero-caption{font-size:11px;letter-spacing:.07em;color:#97b4c0;margin-top:56px}.caption-dot{display:inline-block;background:var(--aqua);border-radius:50%;width:5px;height:5px;vertical-align:middle;margin-right:8px}.hero-graphic{height:420px;position:relative;display:flex;align-items:flex-end;justify-content:center}.contour-ring{position:absolute;border:1px solid rgba(171,236,230,.13);border-radius:50%;transform:rotate(-19deg)}.ring-one{width:360px;height:255px;top:40px;left:15%}.ring-two{width:275px;height:190px;top:71px;left:25%}.ring-three{width:190px;height:130px;top:97px;left:35%}.depth-rule{position:absolute;left:8%;top:8%;bottom:0;border-left:1px dashed #5c9ba6}.axis-label{position:absolute;left:0;font-size:9px;letter-spacing:.14em;color:#87b9c3}.axis-top{top:3%}.axis-bottom{bottom:1%}.depth-illustration{position:relative;width:100%;height:230px;border-bottom:1px solid rgba(180,229,228,.5);overflow:hidden;background:linear-gradient(180deg,rgba(51,139,150,.04),rgba(14,76,102,.55));clip-path:polygon(0 100%,0 72%,10% 67%,19% 63%,29% 38%,36% 10%,41% 53%,50% 70%,62% 62%,73% 27%,80% 64%,88% 74%,100% 77%,100% 100%)}.peak{position:absolute;height:100%;width:100%;background:repeating-linear-gradient(172deg,transparent 0 19px,rgba(141,226,219,.13) 20px 21px);inset:0}.depth-caption{position:absolute;right:1%;bottom:7%;font-family:Manrope,sans-serif;font-size:11px;letter-spacing:.14em;color:var(--aqua);text-transform:uppercase}
.intro-section{padding:95px 0 92px;background:#fff}.intro-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:100px}.intro-section h2,.section-heading h2,.research-copy h2{font-size:clamp(32px,3.1vw,48px);max-width:500px}.intro-description p{font-size:16px;color:#405864;line-height:1.85}.intro-actions{display:grid;gap:12px;margin-top:27px}.inline-article{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-top:1px solid var(--line);text-decoration:none;font-weight:800;font-size:13px}.inline-article:last-child{border-bottom:1px solid var(--line)}.inline-article:hover{color:#0a898d}
.lessons-section{padding:90px 0 106px}.section-heading{display:grid;grid-template-columns:1.3fr .7fr;align-items:end;gap:48px;margin-bottom:34px}.section-heading h2{max-width:680px;margin-bottom:0}.section-heading>p{color:var(--muted);line-height:1.8;font-size:14px;margin:0 0 6px}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.lesson-card{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 14px 37px rgba(8,47,63,.045)}.lesson-image{height:205px;position:relative;overflow:hidden;background:linear-gradient(135deg,#07384a,#2898a4)}.lesson-image img{width:100%;height:100%;object-fit:cover;display:block;filter:saturate(.72)}.lesson-number{position:absolute;bottom:16px;left:18px;color:#fff;background:rgba(6,27,43,.82);padding:7px 9px;font-size:10px;letter-spacing:.13em;font-weight:800;border-radius:3px}.lesson-content{padding:25px 23px 25px;display:flex;flex-direction:column;flex:1}.lesson-topline{display:flex;justify-content:space-between;gap:8px;align-items:center;font-size:9px;letter-spacing:.09em;color:#728b93;font-weight:700}.lesson-status{padding:5px 8px;background:#e7f5f1;color:#15675e;border-radius:3px;font-size:10px;letter-spacing:0}.lesson-status.upcoming{background:#eef0f0;color:#67747a}.lesson-content h3{font-size:23px;margin:21px 0 12px;letter-spacing:-.04em}.lesson-content>p{font-size:14px;color:#61757e;line-height:1.8;flex:1}.lesson-actions{display:grid;gap:9px;margin-top:20px}.lesson-actions .button{width:100%;justify-content:space-between;text-align:left}.lesson-upcoming .lesson-image img{opacity:.7}
.mission-section{padding:100px 0;background:#082a39;color:#fff;position:relative;overflow:hidden}.mission-section::after{content:"";position:absolute;inset:0;background:repeating-radial-gradient(ellipse at 20% 90%,transparent 0 34px,rgba(128,220,215,.045) 35px 36px);pointer-events:none}.mission-grid{position:relative;z-index:1;display:grid;grid-template-columns:.85fr 1.15fr;gap:110px;align-items:center}.mission-mark{font-family:Manrope,sans-serif;font-size:clamp(37px,4.4vw,63px);line-height:1.1;letter-spacing:-.065em;font-weight:800;color:#7fd3c9}.mission-copy h2{font-size:clamp(31px,3.1vw,46px);max-width:620px}.mission-copy p:not(.eyebrow){color:#bbd5dc;font-size:15px;line-height:1.85}.mission-copy .text-link{display:inline-block;margin-top:12px}
.research-section{padding:100px 0;background:#fff}.research-grid{display:grid;grid-template-columns:.88fr 1.12fr;align-items:center;gap:80px}.research-copy p:not(.eyebrow){font-size:15px;line-height:1.85;color:var(--muted);margin-bottom:27px}.video-frame{aspect-ratio:16/9;background:#061b2b;border-radius:9px;overflow:hidden;box-shadow:0 24px 65px rgba(5,31,42,.15)}.video-frame iframe{width:100%;height:100%;border:0}
.closing-strip{background:#0b4050;padding:55px 0;color:#fff}.closing-inner{display:flex;justify-content:space-between;align-items:center;gap:40px}.closing-inner h2{font-size:clamp(25px,2.5vw,36px);max-width:650px;margin:0}.site-footer{background:#061b2b;color:#c8d8de;padding:62px 0 22px}.footer-inner{display:flex;justify-content:space-between;gap:40px;padding-bottom:50px}.footer-wordmark{font-weight:800;letter-spacing:.12em;color:#fff;text-decoration:none;font-size:15px}.footer-inner p{font-size:12px;color:#9ab5bf;margin:12px 0 0}.footer-links{display:flex;gap:25px;flex-wrap:wrap}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #2e4a56;padding-top:24px;color:#829faa;font-size:11px}
@media(max-width:980px){.header-inner{gap:20px}.site-nav{gap:15px}.header-cta{display:none}.hero-inner{gap:25px}.intro-grid{gap:55px}.lesson-grid{gap:12px}.lesson-content{padding:19px}.research-grid,.mission-grid{gap:50px}}@media(max-width:740px){.container{width:min(var(--max),calc(100% - 36px))}.header-inner{min-height:71px}.wordmark{font-size:12px}.wordmark-symbol{width:31px;height:31px}.site-nav{display:none}.menu-button{margin-left:auto;display:flex;gap:9px;align-items:center;background:transparent;border:1px solid #577782;border-radius:4px;padding:8px 12px;color:#fff;font-size:12px}.mobile-menu:not([hidden]){display:grid;background:#092c3b;padding:10px 18px 20px;gap:0}.mobile-menu a{padding:11px;color:#fff;text-decoration:none;border-top:1px solid #294e59}.hero-inner{display:block;min-height:0;padding-block:65px 45px}.hero h1{font-size:clamp(47px,10vw,71px)}.hero-graphic{height:200px;margin-top:28px;opacity:.65}.depth-illustration{height:130px}.contour-ring{display:none}.hero-caption{margin-top:36px}.intro-section,.lessons-section,.research-section,.mission-section{padding:70px 0}.intro-grid,.section-heading,.mission-grid,.research-grid{grid-template-columns:1fr;gap:22px}.lesson-grid{grid-template-columns:1fr;gap:20px}.lesson-image{height:220px}.mission-mark{font-size:41px}.closing-inner,.footer-inner,.footer-bottom{display:block}.closing-inner .button{margin-top:23px}.footer-links{margin-top:26px}.footer-bottom small{display:block;margin-bottom:9px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}


/* Header identity. Uses the existing website colors. */
.sibling-nav{color:var(--aqua)!important;border-left:1px solid #335562;padding-left:18px}
.site-header{overflow:visible}
.header-inner{min-height:120px;gap:24px}
.wordmark{display:inline-flex;align-items:center;gap:18px;font-family:Manrope,sans-serif;font-size:clamp(19px,2vw,27px);font-weight:800;letter-spacing:-.035em;text-transform:none;line-height:1.15;white-space:nowrap;flex-shrink:0}
.wordmark-title{display:block}
.header-projection{display:block;width:145px;height:88px;object-fit:contain;flex:none}
.hero-inner{display:block;min-height:0;padding-top:80px;padding-bottom:80px}
.hero-copy,.hero h1{max-width:850px}
.hero-lead{max-width:740px}
@media(max-width:1150px){.header-inner{gap:16px}.header-projection{width:105px;height:65px}.wordmark{font-size:19px;gap:10px}.site-nav{gap:13px}.site-nav a{font-size:12px}.header-cta{display:none}.sibling-nav{padding-left:12px}}
@media(max-width:740px){.header-inner{min-height:82px}.header-projection{width:72px;height:49px}.wordmark{font-size:clamp(16px,4vw,20px);gap:8px;white-space:normal}.hero-inner{padding-top:65px;padding-bottom:65px}}