@import url('assets/fonts/fonts.css');
:root{--paper:#f6f7f2;--ink:#203d31;--muted:#7b857c;--green:#214e3b;--lime:#d7ed9b;--line:#dde3d7;--serif:'Lora',Georgia,serif;--sans:'Be Vietnam Pro',system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:14px;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button{color:inherit}a{color:inherit;text-decoration:none}button{border:0;background:none}button:disabled{cursor:default;opacity:.5}svg{width:21px;height:21px;display:block;flex-shrink:0}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #9bb762;outline-offset:5px}h1,h2,h3,p{margin:0}::selection{background:#d7ed9b;color:#173f32}.skip-link{position:fixed;left:20px;top:-100px;z-index:20;background:var(--lime);padding:15px}.skip-link:focus{top:10px}.site-header{height:88px;padding:0 5%;display:flex;align-items:center;justify-content:space-between;background:#fafbf7;border-bottom:1px solid var(--line);gap:28px;position:relative;z-index:5}.brand{display:flex;align-items:center;gap:8px;font-size:27px;font-weight:750;letter-spacing:-1.3px;white-space:nowrap}.brand-mark{display:grid;place-items:center;color:#38714b}.brand-mark svg{width:36px;height:36px;stroke-width:1.7}.brand-dot{color:#9ab45d}.desktop-nav{display:flex;align-items:center;gap:32px;height:100%;font-size:12px;font-weight:500}.desktop-nav a,.desktop-nav button{height:100%;display:flex;align-items:center;position:relative;padding:0}.desktop-nav .active:after{content:'';position:absolute;bottom:19px;left:0;right:0;height:2px;background:#4b6b42}.desktop-nav a:hover,.desktop-nav button:hover{color:#608d48}.header-actions{display:flex;align-items:center;gap:18px}.icon-button{width:40px;height:40px;border-radius:50%;display:grid;place-items:center}.icon-button:hover{background:#e9eee2}.header-divider{width:1px;height:26px;background:var(--line)}.profile-button{display:flex;align-items:center;gap:10px;padding:0}.avatar{height:35px;width:35px;background:#e4ead7;border:1px solid #d1dabe;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:600}.profile-label{display:flex;gap:10px;align-items:center;font-size:11px}.profile-label svg{width:14px}.mobile-menu-toggle,.mobile-nav{display:none}.hero{height:660px;min-height:600px;position:relative;color:white;overflow:hidden;background:#0c2d23}.hero-background,.hero-shade,.hero-grain{position:absolute;width:100%;height:100%;inset:0}.hero-background{object-fit:cover;object-position:50% 57%;filter:brightness(.7) saturate(.8)}.hero-shade{background:linear-gradient(90deg,rgba(5,30,21,.88),rgba(8,31,23,.6) 42%,rgba(6,30,21,.15) 80%),linear-gradient(0deg,rgba(5,26,18,.9),transparent 35%)}.hero-grain{opacity:.06;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23fff' filter='url(%23n)' opacity='.7' d='M0 0h180v180H0z'/%3E%3C/svg%3E");pointer-events:none}.hero-content{position:relative;margin-left:8%;padding-top:83px;z-index:2;width:52%}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:600;display:flex;align-items:center;gap:12px;line-height:1.6}.hero-eyebrow{color:#d6e1c7;letter-spacing:3px}.tiny-line{width:30px;height:1px;background:#c7dda2}.hero h1{font-family:var(--serif);font-size:clamp(56px,5.6vw,84px);font-weight:400;line-height:1.16;letter-spacing:-2.8px;margin:23px 0}.hero h1 em{color:#d8e9ac;font-weight:400}.hero-content>p{font-size:13px;line-height:1.95;color:#d3dacf;font-weight:400}.hero-buttons{display:flex;align-items:center;gap:25px;margin-top:31px}.button{min-height:49px;display:inline-flex;align-items:center;justify-content:center;gap:25px;padding:0 23px;border-radius:5px;font-size:12px;font-weight:550;transition:transform .2s,background .2s}.button:hover{transform:translateY(-2px)}.button-lime{background:var(--lime);color:#243b27}.button-lime:hover{background:#e7f8b9}.button svg{width:19px}.hero-tour{display:flex;align-items:center;gap:9px;color:#eee;font-size:11px;padding:8px 0}.play-circle{height:32px;width:32px;border:1px solid #ffffff66;border-radius:50%;display:grid;place-items:center}.play-circle svg{width:12px;height:12px;fill:currentColor}.hero-footnote{display:flex;align-items:center;gap:8px;font-size:9px;letter-spacing:.25px;color:#b9c9b4;margin-top:34px}.live-dot{width:6px;height:6px;border-radius:50%;background:#c5dd94;display:inline-block;box-shadow:0 0 0 4px #b8d18b10;flex-shrink:0}.hero-specimen{position:absolute;right:7%;top:65px;width:35%;max-width:465px;height:475px;z-index:2}.specimen-tag{position:absolute;left:28px;top:28px;display:flex;gap:10px;align-items:center;letter-spacing:2px;font-size:8px;color:#d7e3c3}.specimen-cross{position:absolute;font-size:20px;font-weight:400;color:#d2deb670}.cross-one{top:0;left:0}.cross-two{bottom:0;right:0}.specimen-image{height:380px;position:relative}.hero-model{position:absolute;inset:0;z-index:1}.hero-model canvas{width:100%;height:100%;display:block;pointer-events:none}.specimen-orbit{position:absolute;left:12%;top:29%;width:78%;height:52%;border:1px solid #d9e8bd25;border-radius:50%;transform:rotate(-30deg);pointer-events:none}.specimen-orbit:before{content:'';position:absolute;inset:-24px;border:1px dashed #d9e8bd16;border-radius:50%}.specimen-label{position:absolute;z-index:2;font-size:9px;color:#e8f2d8;display:flex;gap:8px;align-items:center;text-shadow:0 1px 6px #000}.specimen-label>span{width:7px;height:7px;border-radius:50%;border:1px solid #edf6dc;box-shadow:0 0 0 3px #ffffff10}.label-one{right:-4px;top:34%}.label-one:before{content:'';width:45px;height:1px;background:#dde8ca70;position:absolute;right:100%;margin-right:7px}.label-two{left:5%;bottom:21%}.label-two:after{content:'';width:30px;height:1px;background:#dde8ca70}.specimen-caption{border-top:1px solid #d9e7c840;display:flex;align-items:center;justify-content:space-between;padding:20px 4px 0}.small-label{font-size:8px;letter-spacing:1.5px;font-weight:500;color:var(--muted)}.specimen-caption .small-label{color:#c2cdb5;font-size:8px}.specimen-caption h2{font-family:var(--serif);font-size:18px;font-weight:400;margin-top:8px}.round-button{height:40px;width:40px;flex-shrink:0;border-radius:50%;border:1px solid #bec9b780;display:grid;place-items:center;transition:background .2s,transform .2s}.round-button:hover{background:#c9df9b33;transform:rotate(8deg)}.round-button svg{width:18px}.hero-bottom{position:absolute;bottom:24px;left:5%;right:5%;border-top:1px solid #ffffff26;padding-top:19px;display:flex;justify-content:space-between;align-items:center;font-size:8px;letter-spacing:1.5px;color:#c6cfc0}.hero-bottom a{display:flex;align-items:center;gap:14px;font-size:9px;letter-spacing:.3px}.hero-bottom svg{height:14px}.discovery-strip{display:flex;align-items:center;justify-content:space-between;gap:30px;margin:0 5%;padding:30px 3%;border-bottom:1px solid var(--line)}.discovery-strip>div{display:flex;align-items:center;gap:16px}.discovery-strip>div>span:first-child{background:#eaf0df;border:1px solid #e0e7d5;border-radius:50%;height:44px;width:44px;display:grid;place-items:center;color:#60784c}.discovery-strip>div>span:last-child{font-size:9px;color:var(--muted);line-height:1.9}.discovery-strip b{display:block;font-size:11px;color:var(--ink);font-weight:500}.strip-divider{width:1px;height:30px;background:var(--line)}.section{padding:73px 8%;scroll-margin-top:20px}.section-top{display:flex;align-items:flex-end;justify-content:space-between;gap:25px;margin-bottom:30px}.section-number{color:#93a181;letter-spacing:1px}.section h2,.lab-copy h2{font-family:var(--serif);font-size:35px;font-weight:400;letter-spacing:-1.3px;line-height:1.3;margin:15px 0 12px}.section-top p{font-size:11px;color:var(--muted);line-height:1.8}.text-button{font-size:11px;display:inline-flex;align-items:center;gap:16px;padding:10px 0;font-weight:500;white-space:nowrap}.text-button svg{width:18px}.text-button:hover{color:#6c873d}.explore-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:25px}.grade-tabs{display:flex;gap:5px;background:#e9ede3;border:1px solid #e1e6d9;padding:5px;border-radius:7px}.grade-tabs button{padding:12px 18px;display:flex;align-items:center;gap:10px;font-size:11px;white-space:nowrap;border-radius:4px;color:#7a8375}.grade-tabs button>span{font-size:9px;opacity:.75}.grade-tabs .selected{background:#fff;color:#214e3b;box-shadow:0 2px 5px #1e3b2710}.curriculum-note{display:flex;gap:7px;align-items:center;font-size:9px;color:#7a8675}.curriculum-note svg{width:15px}.info-dot{display:inline-grid;place-items:center;border:1px solid #a7b09f;width:13px;height:13px;border-radius:50%;font-size:8px}.topic-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr;gap:20px}.topic-card{background:#fff;border:1px solid #e0e5d9;border-radius:9px;overflow:hidden;position:relative;transition:transform .25s,box-shadow .25s}.topic-card:hover{transform:translateY(-5px);box-shadow:0 12px 28px #213c2d0b}.topic-image{height:203px;position:relative;overflow:hidden;background:#e0e9d5}.topic-image>img{height:100%;width:100%;object-fit:cover;transition:transform .6s}.topic-card:hover .topic-image>img{transform:scale(1.04)}.topic-image:after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,#092d1e44,transparent 65%)}.topic-card.featured .topic-image{height:203px}.topic-type{position:absolute;left:15px;top:15px;display:flex;align-items:center;gap:5px;background:#f7f9f0e8;border-radius:4px;padding:6px 9px;font-size:8px;z-index:2;color:#35543b}.topic-type svg{width:12px;height:12px}.bookmark-button{position:absolute;top:12px;right:12px;z-index:2;width:30px;height:30px;border-radius:50%;background:#f9fcf1df;display:grid;place-items:center}.bookmark-button svg{height:15px;width:15px}.bookmark-button.saved{background:#d7ed9b}.bookmark-button.saved svg{fill:#567244}.topic-body{padding:20px 20px 17px}.topic-kicker{font-size:8px;letter-spacing:1.4px;color:#879075;margin-bottom:10px;display:block}.topic-body h3{font-family:var(--serif);font-weight:500;font-size:20px;line-height:1.45;letter-spacing:-.4px}.topic-body p{font-size:10px;line-height:1.9;color:var(--muted);margin:8px 0 20px}.topic-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:14px;border-top:1px solid #e9ede4;font-size:9px}.topic-bottom>span{display:flex;align-items:center;gap:6px;color:#8b9383}.topic-bottom svg{width:13px;height:13px}.topic-bottom button{display:flex;align-items:center;gap:7px;font-weight:500;font-size:9px;padding:5px 0}.topic-bottom button svg{width:15px}.lesson-done{position:absolute;bottom:14px;right:14px;font-size:9px;color:white;z-index:2;display:flex;align-items:center;gap:5px;background:#245b3ce8;padding:5px 8px;border-radius:3px}.topic-illustration{position:absolute;inset:0;display:grid;place-items:center}.topic-illustration svg{width:110px;height:110px;stroke-width:.8;opacity:.9}.illustration-cell{background:radial-gradient(ellipse at 55% 40%,#729766,#294e3c);color:#dce8ab}.illustration-membrane{background:radial-gradient(ellipse at 30% 20%,#a4c2c0,#416b65);color:#e0f2d6}.illustration-dna{background:radial-gradient(ellipse at 50% 40%,#637c89,#223e4b);color:#d0dcb4}.illustration-mendel{background:radial-gradient(ellipse at 50% 40%,#aab69a,#6a7d5c);color:#eef3d2}.illustration-water{background:radial-gradient(ellipse at 50% 40%,#99c1bc,#427d78);color:#e0f7e8}.collection-section{padding-top:5px}.mini-pill{border:1px solid var(--line);display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:4px;color:#697c5b;font-size:9px;white-space:nowrap}.mini-pill .live-dot{background:#799952;width:5px;height:5px}.collection-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px}.model-card{height:350px;position:relative;border-radius:8px;overflow:hidden;color:#eaf0dd;text-align:left;background:#1d3e30;border:1px solid #31513c}.cell-model-card{background:radial-gradient(ellipse at 50% 30%,#3d6040,#152f24 80%)}.dna-model-card{background:radial-gradient(ellipse at 60% 30%,#344f52,#1b3439 80%)}.model-card:after{content:'';position:absolute;inset:0;pointer-events:none;opacity:.25;background-image:radial-gradient(#c0ceac66 .6px,transparent .6px);background-size:21px 21px;mask-image:linear-gradient(0deg,transparent,black)}.model-card-label{position:absolute;top:23px;left:25px;right:25px;display:flex;justify-content:space-between;font-size:8px;letter-spacing:2px;color:#c6d5b6;z-index:2}.model-card-label svg{width:18px;height:18px;opacity:.8}.model-card-bottom{position:absolute;bottom:24px;left:26px;right:26px;display:flex;justify-content:space-between;gap:20px;align-items:center;z-index:2}.model-card-bottom>div>span{font-size:8px;color:#bdcdaa;letter-spacing:1.8px}.model-card-bottom h3{font-family:var(--serif);font-size:25px;letter-spacing:-.7px;font-weight:400;margin:8px 0}.model-card-bottom p{font-size:10px;color:#b1c4ae}.model-card .round-button{height:37px;width:37px;background:#d7e8ac0c}.cell-art{position:absolute;top:35px;left:21%;width:60%;height:200px;perspective:700px;transition:transform .5s}.model-card:hover .cell-art{transform:translateY(-7px) rotate(3deg)}.cell-wall{position:absolute;inset:18px 15px;border-radius:35% 25% 35% 24%;background:radial-gradient(ellipse at 30% 20%,#a4bd6999,#677d3c33 80%);border:7px solid #b6cc7b99;box-shadow:inset 0 0 0 4px #263d26,inset 0 0 22px #d0ec99aa,0 15px 30px #001f12b0,0 2px 0 2px #d6ea9d80;transform:rotate(-17deg) rotateX(25deg)}.cell-vacuole{position:absolute;left:43%;top:18%;width:45%;height:65%;background:linear-gradient(140deg,#7ec2baaa,#3f8d8e55);border:1px solid #b1e0c866;border-radius:43% 27% 35% 47%;box-shadow:inset 6px 6px 17px #bce3c744}.cell-nucleus{position:absolute;left:19%;top:32%;width:50px;height:48px;background:radial-gradient(circle at 35% 30%,#dec8ca,#ac818e 48%,#664c60 90%);border-radius:50%;box-shadow:0 0 0 3px #baa6a366,4px 4px 10px #001e2766}.cell-nucleus:after{content:'';position:absolute;left:15px;top:20px;width:17px;height:17px;border-radius:50%;background:#6f456a;box-shadow:inset 2px 2px 4px #c4a4bb}.chloroplast{position:absolute;width:38px;height:20px;border-radius:50%;border:2px solid #b9d38d;background:repeating-linear-gradient(90deg,#3f6a38 0 4px,#a3c264 4px 6px);box-shadow:2px 3px 7px #132f1e}.c1{left:25%;top:8%;transform:rotate(15deg)}.c2{right:8%;bottom:9%;transform:rotate(-35deg)}.c3{left:10%;bottom:10%;transform:rotate(35deg)}.mitochondrion{position:absolute;width:29px;height:13px;border:2px solid #d7b27f;background:repeating-linear-gradient(65deg,#b17f51 0 3px,#ead29a 3px 4px);border-radius:50%;box-shadow:1px 2px 4px #10281a}.m1{right:7%;top:14%;transform:rotate(20deg)}.m2{left:41%;bottom:8%;transform:rotate(-20deg)}.cell-er{position:absolute;left:6%;top:28%;width:37px;height:50px;border:3px solid #a8b98d;border-radius:50%;box-shadow:0 0 0 3px #476b47,0 0 0 5px #a8b98d;transform:rotate(-25deg)}.dna-art{position:absolute;left:23%;top:15px;width:56%;height:220px;transform:rotate(28deg);transition:transform .5s}.model-card:hover .dna-art{transform:rotate(35deg) scale(1.03)}.dna-rung{position:absolute;height:3px;left:50%;background:linear-gradient(90deg,#a8c9bc,#d5c18a);border-radius:3px;transform:translateX(-50%)}.dna-rung:before,.dna-rung:after{content:'';position:absolute;top:-4px;width:10px;height:10px;border-radius:50%;background:radial-gradient(circle at 30% 30%,#d6dfbc,#74978e);box-shadow:0 1px 5px #061f22}.dna-rung:before{left:-4px}.dna-rung:after{right:-4px;background:radial-gradient(circle at 30% 30%,#f2e3b7,#9d8d5c)}.lab-section{display:grid;grid-template-columns:1fr 1fr;background:#e9eedf;min-height:500px;margin:0 5%;border:1px solid #dce3d3;border-radius:9px;overflow:hidden;scroll-margin-top:30px}.lab-visual{position:relative;min-height:500px;background:#22472f;color:white;overflow:hidden}.lab-visual>img{height:100%;width:100%;object-fit:cover;position:absolute;filter:saturate(.7) brightness(.66);object-position:50% 50%}.lab-visual-shade{position:absolute;inset:0;background:linear-gradient(0deg,#0d392eaa,transparent 65%)}.lab-specimen-id{position:absolute;top:30px;left:32px;font-size:8px;letter-spacing:2px;color:#dde9c9}.leaf-caption{position:absolute;bottom:125px;left:38px;font-size:8px;letter-spacing:1.7px}.leaf-caption>.live-dot{margin-right:8px}.leaf-caption>div{font-family:var(--serif);font-size:42px;line-height:1.25;letter-spacing:-1.4px;margin-top:16px}.leaf-caption em{color:#e0eab5}.floating-formula{position:absolute;bottom:35px;left:38px;right:38px;padding:17px 20px;border:1px solid #e5edce5c;border-radius:6px;background:#173f2e33;backdrop-filter:blur(12px);font-family:var(--serif);font-size:17px;letter-spacing:.2px}.floating-formula>span{margin:0 12px;color:#d4e7a8}.floating-formula small{display:block;font-family:var(--sans);font-size:6px;letter-spacing:1.7px;margin-top:9px;color:#c8d7b4}.lab-copy{padding:50px 12%;display:flex;align-items:flex-start;flex-direction:column;justify-content:center}.lab-copy>.eyebrow{font-size:8px;letter-spacing:1.5px}.lab-pill{margin-top:24px;font-size:8px;padding:6px 9px;background:#f7f9f066}.lab-pill svg{height:12px;width:12px}.lab-copy h2{font-size:42px;line-height:1.24;margin:18px 0}.lab-copy>p{font-size:11px;line-height:1.9;color:#75806c}.lab-highlights{display:flex;flex-direction:column;gap:11px;margin:22px 0 27px}.lab-highlights>span{display:flex;gap:10px;align-items:center;font-size:10px}.lab-highlights svg{width:15px;height:15px;color:#7c9665}.button-dark{background:#284d39;color:#f3f5e8}.button-dark:hover{background:#3c6247}.lab-note{font-size:8px;margin-top:12px;color:#859077}.journey-section{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:10%;padding-top:85px;padding-bottom:78px}.journey-intro>.eyebrow{font-size:8px;letter-spacing:1.6px}.journey-intro>h2{font-size:34px;margin-top:20px}.journey-intro>p{color:var(--muted);line-height:2;font-size:11px;max-width:360px;margin:15px 0}.journey-intro>.text-button{border-bottom:1px solid #bdc9ac}.progress-card{background:#fff;border:1px solid var(--line);padding:27px;border-radius:9px;box-shadow:0 8px 20px #17362203}.progress-card-top{display:flex;align-items:center;gap:12px}.avatar-large{width:44px;height:44px;color:#789650}.avatar-large svg{width:25px;height:25px}.progress-card-top h3{font-family:var(--serif);font-weight:500;font-size:16px;margin-top:5px}.progress-card-top .small-label{font-size:7px}.seed-badge{margin-left:auto;display:flex;align-items:center;gap:4px;font-size:9px;background:#f0f4e7;padding:6px 8px;border-radius:4px;white-space:nowrap}.seed-badge svg{width:11px;height:11px}.progress-row{display:flex;justify-content:space-between;align-items:center;font-size:8px;margin-top:24px;color:#849078}.progress-row strong{font-weight:500;color:#496039}.progress-track{height:5px;background:#e8eddf;border-radius:4px;margin:10px 0 25px;overflow:hidden}.progress-track>div{height:100%;background:#96ae66;border-radius:4px;width:0;transition:width .6s}.badge-row{display:flex;justify-content:space-around;padding-bottom:21px;border-bottom:1px solid #e5eadf;gap:10px}.journey-badge{display:flex;flex-direction:column;align-items:center;gap:10px;color:#9da591;filter:grayscale(1);opacity:.6}.journey-badge>span:first-child{width:45px;height:45px;display:grid;place-items:center;border:1px dashed #c2cbb6;border-radius:50%;background:#f7f8f3}.journey-badge svg{width:23px;height:23px}.journey-badge>span:last-child{font-size:7px}.journey-badge.earned{filter:none;opacity:1;color:#557438}.journey-badge.earned>span:first-child{background:#edf3dc;border-style:solid;border-color:#b9ce92}.progress-next{display:flex;gap:10px;align-items:center;font-size:9px;width:100%;padding:17px 0 0;text-align:left}.progress-next>span:first-child{height:23px;width:23px;background:#edf1e5;display:grid;place-items:center;border-radius:50%}.progress-next>span:first-child svg{width:10px;height:10px;fill:#486738}.progress-next>span:last-child{margin-left:auto}.progress-next>span:last-child svg{width:15px}.field-note{background:#e9eedf;text-align:center;padding:49px 20px 44px;border-top:1px solid #e0e7d5;border-bottom:1px solid #dce4d2}.field-note>span:first-child{display:inline-block;color:#8d9e78}.field-note svg{width:24px;height:24px;stroke-width:1}.field-note p{font-family:var(--serif);font-size:30px;line-height:1.55;letter-spacing:-.5px;margin:10px 0 20px;color:#526c43}.field-note p br{display:none}.field-note>span:last-child{font-size:7px;letter-spacing:2px;color:#8e9b80}footer{padding:45px 8% 23px;background:#f6f7f0}.footer-main{display:flex;align-items:center;gap:40px;padding-bottom:35px}.footer-main>.brand{font-size:24px}.footer-main>.brand svg{width:30px;height:30px}.footer-main>p{font-size:9px;color:#8a947f;line-height:1.9;border-left:1px solid #d7e0cd;padding-left:30px}.footer-links{display:flex;gap:22px;margin-left:auto;font-size:9px}.footer-links button{padding:0;font-size:9px}.footer-links a:hover,.footer-links button:hover{text-decoration:underline}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid #dce3d3;color:#939c87;font-size:7px}.little-leaf{font-size:16px;margin-left:5px;color:#8a9b69}.prototype-label{color:#8d987c}.mobile-nav[hidden]{display:none}
/* Shared discovery windows */
dialog{border:1px solid #cfd8c4;border-radius:14px;padding:0;background:var(--paper);color:var(--ink);width:min(1050px,calc(100% - 40px));max-height:90dvh;box-shadow:0 30px 100px #061b1940}dialog::backdrop{background:#0b241dc4;backdrop-filter:blur(8px)}.dialog-shell{padding:30px}.dialog-top{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:24px}.dialog-top h2{font-family:var(--serif);font-size:29px;font-weight:400;margin-top:8px}.dialog-top .eyebrow{font-size:8px}.dialog-top .icon-button{background:#e9eee1;flex-shrink:0}#dialog-content{font-size:12px;line-height:1.9}.dialog-lead{color:#6b7d65;max-width:690px;margin:0 0 22px}.modal-columns{display:grid;grid-template-columns:1.4fr 1fr;gap:25px}.model-viewer{position:relative;height:420px;background:radial-gradient(ellipse at 50% 40%,#335842,#142f25);border-radius:9px;overflow:hidden;color:#dce8c9;touch-action:none}.model-viewer canvas{width:100%;height:100%;display:block;touch-action:none;cursor:grab}.model-viewer canvas:active{cursor:grabbing}.viewer-tip{position:absolute;bottom:15px;left:15px;font-size:8px;letter-spacing:.3px;pointer-events:none}.viewer-tools{display:flex;justify-content:space-between;gap:10px;align-items:center;margin:12px 0;font-size:9px}.viewer-tools button{display:flex;gap:5px;align-items:center;padding:7px 10px;border:1px solid var(--line);border-radius:4px;background:#fff}.viewer-tools svg{height:14px;width:14px}.model-disclaimer{color:#8a947e;font-size:9px}.organelle-list{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px}.organelle-list button{font-size:9px;padding:7px 10px;background:#e8eddf;border:1px solid #dce4cf;border-radius:4px}.organelle-list button.selected{background:#294e3b;color:white;border-color:#294e3b}.organelle-detail{padding:20px;background:#fff;border:1px solid var(--line);border-radius:7px;min-height:200px}.organelle-detail h3{font-family:var(--serif);font-size:24px;font-weight:400;margin-bottom:9px}.organelle-detail p{font-size:11px;color:#687963}.fact-note{margin:18px 0;background:#e8efdc;padding:13px 15px;border-left:3px solid #a3b976;border-radius:0 4px 4px 0;font-size:10px}.dialog-link{display:inline-flex;align-items:center;gap:8px;font-size:10px;margin-top:17px;color:#4c6e35;text-decoration:underline}.dialog-link svg{width:13px}.lesson-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:30px}.lesson-copy h3{font-family:var(--serif);font-size:23px;font-weight:400;margin:20px 0 10px}.lesson-copy p{color:#63735d;line-height:2;font-size:12px}.lesson-copy ul{padding-left:20px;color:#63735d}.lesson-copy li{margin-bottom:10px}.lesson-callout{background:#e8eddc;border-left:3px solid #8da463;padding:15px 18px;margin:20px 0;font-size:11px}.quiz-card{background:white;border:1px solid var(--line);padding:22px;border-radius:8px;align-self:start}.quiz-title{font-size:9px;letter-spacing:1.5px;color:#8c997b}.quiz-card h3{font-family:var(--serif);font-weight:500;font-size:20px;margin:12px 0 18px;line-height:1.5}.quiz-options{display:flex;flex-direction:column;gap:9px}.quiz-options button{text-align:left;padding:13px;border:1px solid var(--line);border-radius:5px;display:flex;gap:10px;align-items:center;font-size:11px;line-height:1.6}.quiz-options button:hover{background:#f1f5e9}.quiz-options .correct{border-color:#7b9e5c;background:#edf4df}.quiz-options .wrong{border-color:#c98e76;background:#fbefe6}.quiz-options .choice-letter{font-size:9px;width:22px;height:22px;border-radius:50%;background:#eff2e8;display:grid;place-items:center;flex-shrink:0}.quiz-feedback{font-size:11px;margin-top:16px;line-height:1.9;color:#52723c}.quiz-card .button{width:100%;margin-top:18px}.lesson-footer{display:flex;gap:15px;align-items:center;margin-top:20px;font-size:10px;flex-wrap:wrap}.lesson-source{font-size:8px;color:#819071;margin-top:25px}.lesson-source a{text-decoration:underline}.lab-controls{background:white;border:1px solid var(--line);border-radius:8px;padding:24px}.control-label{display:flex;justify-content:space-between;font-size:11px;margin-bottom:8px}.control-label output{color:#6f8d45}.range-group{margin:10px 0 24px}.range-group input{width:100%;accent-color:#6f9346;cursor:pointer;min-height:24px}.range-endpoints{display:flex;justify-content:space-between;color:#8e9981;font-size:8px}.lab-stage{min-height:320px;background:radial-gradient(ellipse at 50% 60%,#3c6748,#183c2f);border-radius:8px;color:white;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;flex-direction:column}.lab-leaf{font-size:90px;filter:drop-shadow(0 10px 20px #00190e80);transition:filter .3s;transform:rotate(-25deg)}.lab-stage>svg{width:125px;height:125px;stroke-width:1;color:#b7d584;filter:drop-shadow(0 4px 12px #d0f08c35);z-index:1}.lab-sun{position:absolute;top:25px;right:25px;transition:opacity .3s;color:#f5dda4}.lab-sun svg{width:40px;height:40px;filter:drop-shadow(0 0 18px #f8d570)}.oxygen-bubbles{position:absolute;inset:0;pointer-events:none}.oxygen-bubble{position:absolute;bottom:35%;width:8px;height:8px;border:1px solid #e3f5d0aa;background:#e3f5d022;border-radius:50%;animation:bubble 4s linear infinite;opacity:0}.lab-rate{position:relative;text-align:center;margin-top:14px;font-size:10px;color:#c8dbb9;z-index:1}.lab-rate strong{display:block;color:#e4f2c5;font-family:var(--serif);font-size:40px;font-weight:400;line-height:1.4}.lab-stage small{position:absolute;bottom:15px;font-size:8px;color:#a6c097;left:20px;right:20px;text-align:center}.trial-table{width:100%;border-collapse:collapse;margin-top:22px;font-size:10px}.trial-table th,.trial-table td{border-bottom:1px solid var(--line);text-align:left;padding:10px 8px}.trial-table th{font-size:9px;color:#8a977b;font-weight:500}.empty-state{padding:28px;text-align:center;color:#8a977c;border:1px dashed #d5deca;border-radius:7px}.empty-state svg{margin:0 auto 12px;height:35px;width:35px;color:#8ca866}.notebook-tabs{display:flex;gap:8px;margin-bottom:20px}.notebook-tabs button{padding:8px 15px;border-radius:5px;border:1px solid var(--line);font-size:10px}.notebook-tabs button.selected{background:#294e3b;color:white}.note-form{display:flex;flex-direction:column;gap:12px;margin:20px 0}.note-form label{font-size:11px}.note-form input,.note-form textarea,.search-input,.name-input{padding:12px;border:1px solid #d3ddc6;border-radius:5px;background:white;color:var(--ink);width:100%}.note-form textarea{resize:vertical;min-height:120px;line-height:1.8}.note-form .button{align-self:flex-start}.note-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.note-item{padding:20px;background:white;border:1px solid var(--line);border-radius:7px;overflow-wrap:anywhere}.note-item h3{font-family:var(--serif);font-size:19px;font-weight:500;margin-bottom:7px}.note-item p{white-space:pre-wrap;font-size:11px;color:#6b7b61}.note-item-footer{display:flex;justify-content:space-between;align-items:center;margin-top:15px;font-size:8px;color:#91a080}.note-item button{padding:4px}.note-item button svg{width:15px;height:15px}.search-results{display:flex;flex-direction:column;gap:8px;margin-top:18px}.search-result{padding:18px;text-align:left;border:1px solid var(--line);border-radius:7px;background:#fff;display:flex;align-items:center;gap:15px}.search-result>span:first-child{width:38px;height:38px;display:grid;place-items:center;background:#e8efdb;border-radius:7px}.search-result h3{font-size:13px;font-weight:500;margin-bottom:3px}.search-result small{font-size:9px;color:#829175}.search-result>span:last-child{margin-left:auto}.search-result:hover{background:#edf3e2}.tour-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.tour-step{border:1px solid var(--line);background:white;padding:22px;border-radius:7px}.tour-step>span{font-family:var(--serif);font-size:34px;color:#a4b580}.tour-step h3{font-family:var(--serif);font-size:21px;font-weight:400;margin:8px 0}.tour-step p{font-size:11px;color:#7c8970}.modal-actions{display:flex;align-items:center;gap:15px;flex-wrap:wrap;margin-top:24px}.passport-header{display:flex;align-items:center;gap:20px;background:#e9efde;padding:25px;border-radius:8px;margin-bottom:25px}.passport-header .avatar{width:65px;height:65px;font-size:24px}.passport-header h3{font-family:var(--serif);font-size:25px;font-weight:400}.passport-header p{font-size:10px;color:#879477}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:20px 0}.stat-box{border:1px solid var(--line);background:white;border-radius:7px;padding:22px}.stat-box strong{font-family:var(--serif);font-size:35px;font-weight:400;display:block}.stat-box span{font-size:10px;color:#849374}.path-list{display:flex;flex-direction:column;gap:10px}.path-item{display:flex;align-items:center;gap:15px;padding:16px;background:white;border:1px solid var(--line);border-radius:6px;text-align:left;width:100%}.path-number{width:30px;height:30px;background:#edf2e4;display:grid;place-items:center;border-radius:50%;font-size:10px;flex-shrink:0}.path-item h3{font-size:12px;font-weight:500}.path-item small{font-size:9px;color:#8b967e}.path-item>span:last-child{margin-left:auto}.teacher-note{background:#e7eddd;padding:15px 20px;border-radius:5px;font-size:11px;margin:20px 0}.sources-list{padding-left:20px}.sources-list li{margin:14px 0}.sources-list a{color:#54793c;text-decoration:underline}.sources-list small{color:#89987a;display:block}.toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);background:#214a36;color:#f3f7e9;padding:14px 23px;border:1px solid #7b9564;border-radius:6px;z-index:50;font-size:11px;box-shadow:0 8px 30px #14352433;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;max-width:calc(100vw - 30px);text-align:center}.toast.visible{opacity:1;transform:translate(-50%,0)}.model-fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:30px;flex-direction:column;gap:12px;font-size:11px}.model-fallback svg{width:70px;height:70px;stroke-width:1;color:#d5e6ad}.fallback-schematic{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;width:90%;max-width:330px}.fallback-schematic button{padding:10px;border:1px solid #b5cea670;color:#dfebcf;background:#57785155;border-radius:5px;font-size:10px}.hero-model .model-fallback{font-size:9px}.privacy-note{font-size:9px;color:#89977b;margin-top:12px}.report-table-wrap{overflow-x:auto}.level-select{padding:10px;border:1px solid var(--line);background:#fff;border-radius:4px}.name-form{display:flex;gap:10px;align-items:center;margin-top:20px}.name-input{max-width:280px}.reduced-motion-note{font-size:9px;color:#81916f}.model-keyboard{font-size:8px;color:#89977b;margin-top:8px}
@keyframes bubble{0%{transform:translateY(10px);opacity:0}15%{opacity:.7}90%{opacity:.4}100%{transform:translateY(-170px);opacity:0}}@media(min-width:1600px){.hero{height:760px}.hero-content{padding-top:115px}.hero-specimen{top:100px;height:500px}.specimen-image{height:410px}.section{padding-left:max(8%,calc((100% - 1350px)/2));padding-right:max(8%,calc((100% - 1350px)/2))}.hero-content{margin-left:max(8%,calc((100% - 1350px)/2))}.topic-image,.topic-card.featured .topic-image{height:250px}.topic-body{padding:25px}.lab-section{max-width:1490px;margin:auto}}@media(max-width:1150px){.site-header{padding:0 4%;height:76px;gap:15px}.desktop-nav{gap:20px;font-size:10px}.profile-label{display:none}.header-actions{gap:8px}.hero{height:610px;min-height:0}.hero-content{padding-top:75px;margin-left:6%}.hero h1{font-size:67px}.hero-content>p{font-size:11px}.hero-specimen{right:5%;width:37%;top:70px;height:425px}.specimen-image{height:340px}.specimen-caption h2{font-size:15px}.specimen-tag{font-size:7px}.hero-buttons{gap:18px}.hero-tour{font-size:9px}.section{padding-left:6%;padding-right:6%;padding-top:60px;padding-bottom:60px}.collection-section{padding-top:0}.section h2{font-size:31px}.grade-tabs button{padding:10px 14px}.grade-tabs button>span{display:none}.discovery-strip{gap:15px;padding:25px 0}.discovery-strip>div{gap:12px}.discovery-strip b{font-size:10px}.discovery-strip>div>span:last-child{font-size:8px}.topic-grid{gap:15px;grid-template-columns:1.2fr 1fr 1fr}.topic-image,.topic-card.featured .topic-image{height:170px}.topic-body{padding:17px 16px}.topic-body h3{font-size:18px}.topic-body p{font-size:9px;min-height:51px}.topic-bottom{font-size:8px}.topic-bottom button{font-size:8px}.lab-copy{padding:35px 10%}.lab-copy h2{font-size:36px}.lab-copy>.eyebrow{font-size:7px}.lab-copy>p{font-size:10px}.lab-visual{min-height:470px}.leaf-caption>div{font-size:36px}.floating-formula{font-size:14px}.journey-section{gap:6%}.journey-intro h2{font-size:30px}.progress-card{padding:22px}.progress-card-top h3{font-size:14px}.seed-badge{font-size:8px}.progress-card-top{gap:9px}.footer-links{gap:15px}.footer-main{gap:25px}.model-card{height:325px}.model-card-bottom h3{font-size:22px}.model-card-bottom p{font-size:9px}.cell-art{left:15%;width:70%}}
@media(max-width:760px){html{scroll-padding-top:20px}.site-header{height:68px;padding:0 5%}.brand{font-size:25px}.brand-mark svg{height:32px;width:32px}.desktop-nav,.header-divider{display:none}.header-actions{gap:5px}.profile-button{margin:0 5px}.avatar{height:31px;width:31px}.mobile-menu-toggle{display:grid}.mobile-nav{position:absolute;z-index:10;top:68px;left:0;right:0;display:flex;flex-direction:column;background:#fafbf7;padding:12px 6% 22px;box-shadow:0 15px 20px #183e2215;border-top:1px solid var(--line);gap:5px}.mobile-nav a,.mobile-nav button{text-align:left;padding:12px 0;font-size:13px}.hero{height:auto;min-height:850px;padding-bottom:80px}.hero-content{margin-left:7%;padding-top:48px;width:86%}.hero-eyebrow{font-size:8px;letter-spacing:2.5px}.hero h1{font-size:59px;line-height:1.16;letter-spacing:-2px;margin:20px 0}.hero-content>p{font-size:11px;line-height:1.9}.hero-buttons{margin-top:24px;gap:18px}.button{font-size:11px;padding:0 17px;min-height:47px;gap:17px}.hero-tour{font-size:9px}.hero-footnote{margin-top:24px;font-size:8px}.hero-specimen{position:relative;right:auto;top:auto;width:85%;max-width:440px;height:345px;margin:20px auto 5px}.specimen-tag{left:15px;top:7px;font-size:6px;letter-spacing:1.6px}.specimen-image{height:275px}.specimen-caption{padding-top:13px}.specimen-caption h2{font-size:16px;margin-top:5px}.specimen-caption .small-label{font-size:6px}.hero-specimen .round-button{height:33px;width:33px}.label-one{right:0}.label-two{left:0;bottom:14%}.hero-bottom{bottom:20px;padding-top:15px;left:7%;right:7%;font-size:6px;letter-spacing:1px}.hero-bottom>span{max-width:160px;line-height:1.8}.hero-bottom a{font-size:7px;gap:5px}.hero-bottom svg{height:12px}.hero-background{object-position:58% 50%}.hero-shade{background:linear-gradient(90deg,#072b20c9,#0b2d20a0),linear-gradient(0deg,#07291e,transparent)}.discovery-strip{margin:0 7%;gap:20px;padding:22px 0;overflow-x:auto;justify-content:flex-start;scrollbar-width:none}.discovery-strip>div{min-width:205px;gap:12px}.discovery-strip>div>span:first-child{width:35px;height:35px}.discovery-strip>div>span:first-child svg{width:18px;height:18px}.strip-divider{display:none}.section{padding:46px 7%}.section-top{margin-bottom:23px;align-items:flex-start;flex-direction:column;gap:8px}.eyebrow{font-size:8px;letter-spacing:1.7px}.section h2{font-size:29px;letter-spacing:-1px;line-height:1.35;margin-top:13px}.section-top p{font-size:10px}.text-button{font-size:10px;padding:7px 0}.explore-toolbar{gap:12px;align-items:flex-start;flex-direction:column;margin-bottom:20px}.grade-tabs{width:100%;gap:4px;padding:4px}.grade-tabs button{padding:11px 15px;flex:1;justify-content:center;font-size:11px}.curriculum-note{font-size:8px;align-self:flex-end}.topic-grid{grid-template-columns:1fr;gap:18px}.topic-image,.topic-card.featured .topic-image{height:200px}.topic-body{padding:22px}.topic-body h3{font-size:23px}.topic-body p{font-size:11px;min-height:0;margin:9px 0 18px}.topic-kicker{font-size:8px}.topic-bottom{font-size:9px}.topic-bottom button{font-size:10px}.topic-card:not(.featured){display:grid;grid-template-columns:33% 1fr}.topic-card:not(.featured) .topic-image{height:100%;min-height:210px}.topic-card:not(.featured) .topic-body{padding:20px 16px}.topic-card:not(.featured) .topic-body h3{font-size:20px}.topic-card:not(.featured) .topic-body p{font-size:10px;line-height:1.8;margin-bottom:15px}.topic-card:not(.featured) .topic-kicker{font-size:7px;letter-spacing:1px}.topic-card:not(.featured) .topic-type{left:8px;top:10px;font-size:6px;padding:5px}.topic-card:not(.featured) .bookmark-button{top:auto;bottom:10px;right:10px;width:27px;height:27px}.topic-card:not(.featured) .topic-illustration svg{width:70px;height:70px}.topic-card:not(.featured) .topic-bottom{flex-wrap:wrap;gap:5px}.collection-section{padding-top:0}.collection-section .section-top{gap:14px}.mini-pill{font-size:8px;padding:6px 9px}.collection-grid{grid-template-columns:1fr;gap:17px}.model-card{height:330px}.model-card-bottom h3{font-size:25px}.model-card-bottom p{font-size:10px}.model-card-bottom{left:22px;right:22px}.cell-art{left:20%;width:60%;top:35px}.dna-art{left:25%;width:50%}.lab-section{grid-template-columns:1fr;margin:0 5%;border-radius:8px}.lab-visual{min-height:340px}.lab-copy{padding:34px 7% 38px}.lab-copy>.eyebrow{font-size:7px}.lab-copy h2{font-size:37px}.lab-copy>p{font-size:11px}.lab-pill{margin-top:20px}.lab-copy h2 br{display:none}.lab-highlights{margin:20px 0 25px;gap:13px}.lab-highlights>span{font-size:11px}.lab-note{font-size:9px}.leaf-caption{bottom:123px;left:26px}.leaf-caption>div{font-size:35px}.floating-formula{bottom:25px;left:25px;right:25px;font-size:16px;padding:16px}.lab-specimen-id{top:24px;left:26px;font-size:7px}.journey-section{grid-template-columns:1fr;gap:28px;padding-top:47px;padding-bottom:47px}.journey-intro>.eyebrow{font-size:7px;letter-spacing:1px}.journey-intro h2{font-size:30px}.journey-intro>p{max-width:none;font-size:11px}.progress-card{padding:23px}.progress-card-top h3{font-size:15px}.progress-card-top .small-label{font-size:6px}.seed-badge{font-size:8px}.field-note{padding:35px 7%}.field-note p{font-size:27px;line-height:1.5}.field-note p br{display:initial}.field-note>span:last-child{font-size:6px;letter-spacing:1.4px}footer{padding:32px 7% 22px}.footer-main{flex-wrap:wrap;gap:20px;padding-bottom:24px;justify-content:space-between}.footer-main>.brand{font-size:24px}.footer-main>p{border:0;padding:0;font-size:8px}.footer-links{margin:0;width:100%;justify-content:space-between;gap:10px;font-size:9px}.footer-bottom{flex-wrap:wrap;font-size:7px;gap:12px}.footer-bottom>span:last-child{display:none}.prototype-label{font-size:6px}.dialog-shell{padding:20px}dialog{width:calc(100% - 20px);max-height:94dvh;border-radius:10px}.dialog-top{gap:10px;margin-bottom:20px;padding-bottom:16px}.dialog-top h2{font-size:24px}.dialog-top .eyebrow{font-size:6px}.dialog-top .icon-button{width:33px;height:33px}.modal-columns,.lesson-layout{grid-template-columns:1fr;gap:22px}.model-viewer{height:330px}.organelle-detail{min-height:0}.viewer-tools{font-size:8px}.model-keyboard{display:none}.lesson-copy h3{font-size:22px}.lesson-copy p{font-size:11px}.quiz-card{padding:20px}.tour-steps{grid-template-columns:1fr;gap:12px}.tour-step{padding:18px;display:grid;grid-template-columns:40px 1fr;gap:0 10px}.tour-step>span{grid-row:span 2;font-size:30px}.tour-step h3{font-size:19px;margin:0 0 5px}.tour-step p{font-size:10px}.note-list{grid-template-columns:1fr}.passport-header{padding:18px;gap:12px}.passport-header h3{font-size:20px}.passport-header .avatar{width:48px;height:48px;font-size:19px;flex-shrink:0}.stat-grid{gap:8px}.stat-box{padding:15px 10px}.stat-box strong{font-size:27px}.stat-box span{font-size:8px}.name-form{flex-wrap:wrap}.name-input{max-width:none}.lesson-footer{gap:10px}.modal-actions .button{font-size:10px}.lab-stage{min-height:280px}.toast{bottom:15px;font-size:10px;padding:12px 17px}.floating-formula>span{margin:0 7px}}@media(max-width:370px){.hero h1{font-size:53px}.hero-tour{font-size:8px}.hero-buttons{gap:12px}.hero-buttons .button{padding:0 14px;gap:10px;font-size:10px}.section h2{font-size:27px}.floating-formula{font-size:13px}.progress-card{padding:18px}.progress-card-top h3{font-size:13px}.seed-badge{padding:4px 5px}.topic-card:not(.featured) .topic-body h3{font-size:18px}.topic-card:not(.featured) .topic-body{padding:17px 12px}}
dialog{inset:5dvh 0 auto;margin:0 auto;overflow-y:auto;overscroll-behavior:contain;scrollbar-gutter:stable;overflow-anchor:none}.viewer-tip{display:flex;align-items:center;gap:7px}.viewer-tip svg{width:13px;height:13px}.lesson-source a{display:inline-flex;align-items:center;gap:4px}.lesson-source a svg{width:10px;height:10px}.lesson-done svg{width:12px;height:12px}.control-label{align-items:center;justify-content:flex-start;gap:7px}.control-label svg{width:16px;height:16px}.control-label output{margin-left:auto}.lab-controls{overflow-anchor:none}.lab-controls .button:hover{transform:none}.model-viewer:focus-within{outline:2px solid #a7bd78;outline-offset:3px}
@media(max-width:760px){dialog{inset:3dvh 0 auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.oxygen-bubble{opacity:.5}.button:hover{transform:none}}