*{box-sizing:border-box} :root{--ink:#24352d;--muted:#606960;--green:#d7edca;--paper:#fafbf8;--line:#e2e6dd}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:ui-rounded,"SF Pro Rounded",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}a:hover{color:#42753e}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #49783a;outline-offset:6px}header{max-width:1100px;margin:auto;padding:25px 36px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{font-weight:800;letter-spacing:-.7px;font-size:23px;display:flex;align-items:center;gap:9px}.brand img{width:31px;height:31px}nav{display:flex;gap:30px;font-size:14px}nav a{padding:9px 0}nav a[aria-current=page]{font-weight:700;border-bottom:2px solid var(--ink)}main{max-width:1100px;margin:auto;padding:0 36px}.hero{text-align:center;padding:66px 0 12px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--muted);margin:0 0 16px}h1{font-size:clamp(42px,6.5vw,76px);line-height:1.08;letter-spacing:-3px;margin:0 0 22px;font-weight:750}h1 span{color:#60834d}h2{font-size:clamp(28px,4vw,40px);line-height:1.17;letter-spacing:-1.2px;margin:0 0 17px}h3{font-size:22px;line-height:1.3;margin:0 0 10px;letter-spacing:-.5px}p{margin:0 0 20px}.lead{font-size:19px;color:var(--muted);max-width:550px;margin:0 auto 25px}.button{display:inline-block;background:var(--ink);color:white;border-radius:28px;padding:12px 24px;font-size:14px;font-weight:600}.button:hover{background:#406044;color:white}.hero-art{display:block;width:min(410px,100%);height:auto;margin:-2px auto 0}.season-banner{background:var(--green);border-radius:25px;padding:30px 36px;display:flex;align-items:center;justify-content:space-between;gap:25px}.season-banner p{margin:0;color:#40503d}.season-banner h2{font-size:30px;margin:3px 0}.text-link{font-weight:650;font-size:15px;display:inline-block;padding:8px 0}.text-link:hover{text-decoration:underline}.section{padding:75px 0}.section-head{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}.section-head h2{margin:0}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.grid.two{grid-template-columns:repeat(2,1fr)}.card{padding:30px;border-radius:24px;background:#f0f1eb}.card p{color:var(--muted);margin-bottom:14px}.card.green{background:#eaf2e4}.card.sand{background:#f4eddf}.symbol{display:block;font-size:30px;margin-bottom:23px}.small{font-size:13px;color:var(--muted)}.page-hero{padding:85px 0 45px;max-width:780px}.page-hero .lead{margin:0;max-width:620px}.page-hero h1{font-size:clamp(42px,6vw,66px)}.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding:20px 0 70px}.split img{width:100%;max-width:420px}.statement{font-size:clamp(25px,4vw,38px);letter-spacing:-1px;line-height:1.35;max-width:760px}.number{font-size:55px;font-weight:750;line-height:1.1;margin-bottom:20px;display:block}.detail{border-top:1px solid var(--line);padding:25px 0}.detail p{color:var(--muted);max-width:750px;margin:12px 0 0}summary{cursor:pointer;font-size:19px;font-weight:650}footer{max-width:1028px;margin:25px auto 0;border-top:1px solid var(--line);padding:28px 0 35px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}footer p{margin:0}.skip{position:absolute;top:-100px;left:15px;background:white;padding:12px;z-index:10}.skip:focus{top:10px}.pill{display:inline-block;font-size:11px;letter-spacing:1px;text-transform:uppercase;font-weight:700;padding:5px 10px;border-radius:20px;background:#fff9;margin-bottom:20px}.back{font-size:14px;display:inline-block;margin-bottom:30px}@media(max-width:650px){header{padding:18px 22px;flex-direction:column;gap:15px}nav{gap:25px}main{padding:0 22px}.hero{padding-top:45px}h1{letter-spacing:-2px}.lead{font-size:17px}.hero-art{width:320px}.season-banner{padding:25px;align-items:flex-start;flex-direction:column;gap:10px}.section{padding:48px 0}.grid,.grid.two,.split{grid-template-columns:1fr;gap:18px}.section-head{align-items:flex-start;flex-direction:column;gap:8px}.page-hero{padding:50px 0 35px}.split{padding-bottom:40px;gap:25px}footer{margin:20px 22px 0;flex-direction:column;gap:8px}.card{padding:26px}.symbol{margin-bottom:13px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Notebook details: small hints of the kids’ work, with room to read. */
.notebook{background:#f4eddf;border-radius:8px 26px 26px 26px;padding:36px;margin-bottom:40px;border-top:5px solid #e7c573}.notebook>p{max-width:730px}.experiment{padding-left:24px;max-width:780px}.experiment li{padding:9px 0 9px 8px}.home-note{display:flex;align-items:center;justify-content:space-between;gap:25px}.home-note p{max-width:540px}.doodle{font-family:Georgia,serif;font-size:150px;line-height:1;color:#6c804f;transform:rotate(-12deg);padding:0 35px}@media(max-width:650px){.notebook{padding:26px}.doodle{display:none}}

.video-card{max-width:760px;margin:24px 0}.video-preview{display:block;position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:20px;background:#23352c}.video-preview img{width:100%;height:100%;object-fit:cover;display:block}.play-label{position:absolute;left:20px;bottom:18px;background:#24352d;color:white;padding:10px 18px;border-radius:24px;font-weight:650}.video-card h3{margin:16px 0 6px}.video-frame{display:block;width:100%;aspect-ratio:16/9;border:0;border-radius:20px}.team-spirit{max-width:420px;margin:0 0 36px}.outreach .video-card{margin-top:25px}footer{flex-wrap:wrap}footer a:hover{text-decoration:underline}

/* Friendly headings, with familiar body text and the original wordmark. */
@font-face{font-family:Nunito;src:url('../fonts/nunito-700.ttf') format('truetype');font-style:normal;font-weight:700;font-display:swap}
@font-face{font-family:Nunito;src:url('../fonts/nunito-800.ttf') format('truetype');font-style:normal;font-weight:800;font-display:swap}
h1,h2,h3,nav,.button,summary{font-family:Nunito,ui-rounded,system-ui,sans-serif}
h1{font-weight:800;letter-spacing:-1.3px;line-height:1.13}h2{font-weight:800;letter-spacing:-.5px}h3{font-weight:800;letter-spacing:0}nav{font-weight:700;font-size:15px}.button{font-weight:700}summary{font-weight:700}
@media(max-width:650px){h1{letter-spacing:-.8px}nav{gap:22px}}

.notebook pre{max-width:100%;overflow-x:auto;background:#24352d;color:#f5f7f2;padding:22px;border-radius:14px;font-size:13px;line-height:1.8;tab-size:4}.notebook code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.notebook pre:focus-visible{outline:3px solid #49783a;outline-offset:4px}

/* Keep all five navigation links comfortable at every screen width. */
header{gap:20px;flex-wrap:wrap}nav{flex-wrap:wrap;justify-content:center;column-gap:22px;row-gap:4px}nav a{white-space:nowrap}
.fll-intro{max-width:720px;font-size:18px}.fll-art{display:block;width:160px;max-width:100%;height:110px;margin-bottom:22px}.fll-values{margin:28px 0 0}.fll-values dt{font-weight:700}.fll-values dd{margin:4px 0 0;color:var(--muted)}.season-banner .button{flex-shrink:0}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
@media(max-width:650px){nav{column-gap:18px}.season-banner .button{max-width:100%}}