:root{color-scheme:light;--navy:#102238;--ink:#122338;--muted:#516176;--teal:#087c73;--bright:#65e4cf;--paper:#f5f8fa;--line:#dce5eb;--text:"DM Sans",system-ui,sans-serif;--display:"Instrument Sans",var(--text)}
*,*::before,*::after{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.5 var(--text)}a{color:inherit}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--display)}[hidden]{display:none!important}.wrap{width:min(1170px,calc(100% - 64px));margin-inline:auto}.sr-only,.skip:not(:focus){position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}.skip:focus{position:absolute;z-index:3;top:.5rem;left:.5rem;background:white;padding:.5rem}:focus-visible{outline:3px solid #0c9286;outline-offset:4px}
.top{background:#fff;border-bottom:1px solid var(--line)}.top-row,.footer-row{display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:70px}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:700 22px/1 var(--display);letter-spacing:-.6px}.brand img{border-radius:9px}.brand-dot{color:var(--teal)}.brand small{font:600 13px var(--text);color:var(--muted);letter-spacing:0;margin-left:9px;padding-left:9px;border-left:1px solid var(--line)}.top nav{display:flex;align-items:center;gap:20px;font-size:14px;font-weight:700}.top nav a{text-decoration:none}.header-hub:hover{text-decoration:underline}.open-app{border:1px solid #bdcdd6;border-radius:8px;padding:8px 12px}.open-app:hover{background:#e9f6f3}.open-app span{margin-left:4px}
.hero{background:radial-gradient(ellipse at 84% 16%,#1c4b56 0%,transparent 53%),linear-gradient(115deg,#102033,#101c30 75%);color:#fff}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:60px;align-items:center;padding-block:58px 62px}.eyebrow{display:flex;align-items:center;gap:9px;color:#8ce9d7;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}.eyebrow span{width:17px;height:2px;background:currentColor}.hero h1{font-size:clamp(42px,5.1vw,70px);letter-spacing:-.066em;line-height:1.02;margin:15px 0 15px}.hero h1 span{color:var(--bright)}.hero-copy>p:not(.eyebrow){max-width:42ch;color:#d5e2ec;font-size:17px}.hero form{display:flex;align-items:center;gap:13px;margin-top:25px;max-width:510px;min-height:54px;background:#fff;border-radius:10px;padding:5px 5px 5px 17px;color:var(--ink)}.search-icon{flex:0 0 15px;width:15px;height:15px;border:2px solid #617389;border-radius:50%;position:relative}.search-icon::after{content:"";position:absolute;right:-6px;bottom:-3px;width:7px;height:2px;background:#617389;transform:rotate(45deg);border-radius:2px}.hero input{flex:1;min-width:0;border:0;padding:7px 2px;background:none;color:var(--ink)}.hero input:focus-visible{outline-offset:0}.hero form button,.empty button{border:0;border-radius:7px;background:#0c776e;color:#fff;padding:10px 15px;font-weight:700}.hero form button:hover,.empty button:hover{background:#075b54}
.feature{min-width:0;text-decoration:none;overflow:hidden;display:block;border:1px solid #547783;border-radius:15px;background:#172c41;box-shadow:0 20px 55px #07132060}.feature-screen{position:relative;background:#0d192c;aspect-ratio:16/9;overflow:hidden}.feature-screen img{width:100%;height:100%;object-fit:cover;object-position:top;opacity:.86;transition:opacity .2s}.feature:hover img{opacity:1}.play{position:absolute;display:grid;place-items:center;inset:50% auto auto 50%;transform:translate(-50%,-50%);width:58px;height:58px;border-radius:50%;background:#102238e8;border:1px solid #c2fff1;color:#fff;padding-left:3px;font-size:20px}.feature-caption{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:13px 17px}.feature-caption div{min-width:0}.feature-caption div span{display:block;color:#88e2d4;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.feature-caption strong{display:block;font-size:16px}.feature-time{font-size:13px;color:#c1d2de;font-variant-numeric:tabular-nums}
.library{padding-block:46px 64px;scroll-margin-top:20px}.section-header{display:flex;justify-content:space-between;align-items:end;gap:16px}.section-header h2{font-size:clamp(27px,4vw,39px);letter-spacing:-.045em;line-height:1.12}.section-header p{color:var(--muted);margin-top:6px}.section-header #count{color:var(--muted);font-size:13px;font-weight:700;white-space:nowrap}.filters{display:flex;flex-wrap:wrap;gap:8px;margin:19px 0 23px}.filters button{border:1px solid #cfdae2;border-radius:999px;background:#fff;color:#314358;font-size:13px;font-weight:700;padding:8px 13px}.filters button[aria-pressed="true"]{background:#dff5f0;color:#065d55;border-color:#8ccbc1}.filters button:hover{border-color:#188a7e}.lessons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.lesson{min-width:0;display:flex;flex-direction:column;border:1px solid var(--line);background:#fff;border-radius:12px;overflow:hidden;text-decoration:none;transition:border-color .18s,box-shadow .18s}.lesson:hover{border-color:#83bcb6;box-shadow:0 7px 20px #10223815}.thumbnail{position:relative;aspect-ratio:16/9;background:#e1eef1;overflow:hidden}.thumbnail img{width:100%;height:100%;object-fit:cover;object-position:top}.thumbnail .play{width:36px;height:36px;font-size:13px;inset:auto auto 11px 11px;transform:none;border-color:#fff}.thumbnail .duration{position:absolute;right:10px;bottom:10px;background:#102238e8;color:white;padding:3px 7px;border-radius:5px;font-size:12px;font-weight:700}.lesson-copy{padding:14px 15px 17px}.lesson-category{display:block;color:var(--teal);font-size:12px;font-weight:700}.lesson h3{font-size:19px;line-height:1.22;letter-spacing:-.02em;margin:4px 0 6px}.lesson p{color:var(--muted);font-size:14px;line-height:1.42}.empty{padding:34px;border:1px dashed #a9bac6;border-radius:12px;background:#fff;text-align:center}.empty p{margin:5px 0 12px;color:var(--muted)}.footer{background:#fff;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.footer-row{min-height:62px}
dialog{width:min(880px,calc(100% - 24px));max-height:calc(100dvh - 24px);border:0;border-radius:14px;padding:0;box-shadow:0 24px 100px #07132080;color:var(--ink)}dialog::backdrop{background:#0a1422b8}.player-head{display:flex;justify-content:space-between;gap:14px;align-items:start;padding:16px 20px}.player-head p{color:var(--teal);font-size:13px;font-weight:700}.player-head h2{font-size:clamp(20px,4vw,29px);letter-spacing:-.03em}.player-head button{border:1px solid var(--line);border-radius:8px;min-width:38px;min-height:38px;background:white;color:var(--ink);font-size:23px;line-height:1}video{display:block;width:100%;max-height:61dvh;background:#0b1727}.player-details{padding:15px 20px 20px;color:var(--muted)}.player-details details{margin:9px 0}.player-details summary{cursor:pointer;font-weight:700;color:var(--ink)}.player-details details p{margin:8px 0}.player-details a{color:#07665c;font-size:14px;font-weight:700}
@media(max-width:900px){.wrap{width:calc(100% - 42px)}.hero-grid{gap:27px;padding-block:43px}.lessons{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.wrap{width:calc(100% - 30px)}.top-row{min-height:60px}.top nav{gap:8px}.header-hub{display:none}.brand{font-size:20px;gap:7px}.brand small{margin-left:5px;padding-left:5px}.hero-grid{grid-template-columns:1fr;padding-block:34px;gap:24px}.hero h1{font-size:clamp(39px,10vw,55px)}.hero-copy>p:not(.eyebrow){font-size:16px}.hero form{margin-top:19px}.library{padding-block:32px 44px}.section-header{align-items:start}.section-header p{font-size:14px}.section-header #count{margin-top:6px}.filters{margin-bottom:16px}.lessons{grid-template-columns:1fr}.lesson-copy{padding:12px 14px 15px}.feature-caption strong{font-size:15px}}@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important}}