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p{color:#fff;margin:0;font-family:Georgia,serif;font-size:31px;line-height:1.2}.footer-note em{color:var(--coral)}.copyright{color:#8da3a0;letter-spacing:.7px;border-top:1px solid #ffffff21;grid-column:1/-1;margin-top:40px;padding-top:20px;font-size:9px}.inner-header{position:relative}.inner-nav{align-items:center;gap:30px;font-size:13px;font-weight:700;display:flex}.library-hero{text-align:center;background:linear-gradient(150deg,#fffdf9 62%,#e7ece4 62%);padding:95px clamp(24px,10vw,160px)}.library-hero h1,.article-hero h1{color:var(--teal-dark);letter-spacing:-2px;margin:18px 0;font-family:Georgia,serif;font-weight:500}.library-hero h1{font-size:clamp(50px,7vw,82px);line-height:1}.library-hero h1 em{color:var(--coral);font-weight:400}.library-hero>p:last-child{max-width:650px;color:var(--muted);margin:25px auto 0;font-size:17px;line-height:1.7}.library-grid{grid-template-columns:1.45fr .55fr;gap:28px;display:grid}.library-card{border:1px solid var(--line);grid-template-columns:.8fr 1.2fr;display:grid}.library-art{background:#dfe8de;align-items:end;gap:10px;min-height:420px;padding:45px;display:flex}.library-art span{color:#fff;background:var(--teal);flex:1;place-items:center;font-size:9px;font-weight:800;display:grid}.library-art span:first-child{background:var(--gold);height:55px}.library-art span:nth-child(2){background:var(--coral);height:110px}.library-art span:nth-child(3){background:#698a74;height:180px}.library-art span:nth-child(4){height:260px}.library-card>div:last-child{align-self:center;padding:50px}.library-card h2,.coming-card h2{color:var(--teal-dark);font:500 34px/1.15 Georgia,serif}.library-card p:not(.eyebrow),.coming-card p:not(.eyebrow){color:var(--muted);line-height:1.7}.coming-card{background:var(--cream);border-top:5px solid var(--coral);padding:45px}.simple-footer{color:#fff;background:var(--teal-dark);justify-content:space-between;align-items:center;padding:45px clamp(24px,7vw,108px);display:flex}.simple-footer p{font:22px 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8px;display:flex}.place-grid div:nth-child(2n){background:#668674}.place-grid div:nth-child(3n){background:var(--coral)}.place-grid strong{font:24px Georgia}.place-grid small{text-transform:uppercase;margin-top:7px;font-size:8px}.article-layout{grid-template-columns:250px minmax(0,780px);justify-content:center;gap:80px;max-width:1280px;margin:auto;padding:95px 32px 120px;display:grid}.article-layout aside{border-left:3px solid var(--sage);background:#f7f6f1;align-self:start;padding:24px;position:sticky;top:115px}.article-layout aside>a{color:var(--teal);margin:17px 0;font-size:11px;font-weight:700;line-height:1.5;display:block}.sidebar-note{border-top:1px solid var(--line);margin-top:27px;padding-top:22px}.sidebar-note strong{color:var(--coral);font-family:Georgia}.sidebar-note p{color:var(--muted);font-size:10px;line-height:1.6}.article-content{color:#4d5a5c;font-size:16px;line-height:1.85}.article-lead{color:var(--teal-dark);font:25px/1.55 Georgia,serif}.principle{border-left:5px solid var(--coral);background:#eef2ec;margin:45px 0 75px;padding:28px 32px}.principle span{color:var(--teal);letter-spacing:1.5px;font-size:10px;font-weight:850}.principle p{color:var(--teal-dark);margin:8px 0 0;font:22px/1.5 Georgia,serif}.strategy{border-bottom:1px solid var(--line);margin-bottom:75px;padding-bottom:75px;scroll-margin-top:110px}.strategy-head{grid-template-columns:60px 1fr;gap:20px;display:grid}.strategy-head>span{color:#fff;background:var(--teal);place-items:center;width:54px;height:54px;font:20px Georgia;display:grid}.strategy-head p{color:var(--coral);letter-spacing:1px;margin:2px 0 7px;font-size:9px;font-weight:850}.strategy h2,.bridge h2,.product-bridge h2{color:var(--teal-dark);margin:0;font:500 37px/1.15 Georgia,serif}.materials{color:var(--teal-dark);background:var(--cream);padding:16px 20px;font-size:13px}.strategy h3{color:var(--teal);margin-top:32px;font:20px Georgia}.strategy li{margin:10px 0}.strategy li::marker{color:var(--coral)}.teacher-tip{border:1px 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var(--coral);background:#f6f0e9;flex-direction:column;gap:6px;margin:25px 0;padding:17px;display:flex}.modal-note span{color:var(--muted);font-size:11px;line-height:1.5}@media (width<=1050px){.hero{grid-template-columns:1fr 1fr;gap:25px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.product-info>p{min-height:55px}.about-stats{grid-template-columns:1fr}}@media (width<=800px){.site-header{height:74px;padding:0 20px}.menu-toggle{z-index:2;gap:6px;display:grid}.menu-toggle span{background:var(--teal);width:24px;height:2px}.nav-links{background:var(--paper);flex-direction:column;align-items:stretch;padding:27px;display:none;position:absolute;top:73px;left:0;right:0;box-shadow:0 20px 30px #143f441a}.nav-links.open{display:flex}.nav-links .nav-cta{text-align:center;margin-top:6px}.hero{background:linear-gradient(155deg, var(--paper) 72%, #f1ece4 72%);grid-template-columns:1fr;min-height:auto;padding-top:60px}.hero-copy{text-align:center}.hero-lede{margin-left:auto;margin-right:auto}.hero-actions,.trust-line{justify-content:center}.hero-visual{width:min(540px,100%);min-height:460px;margin:auto}.promise-strip{text-align:center;flex-wrap:wrap;gap:10px 17px}.section{padding:80px 24px}.section-heading.split,.approach,.about,.newsletter{grid-template-columns:1fr;gap:45px}.section-heading.split,.approach-copy{text-align:center}.approach-copy>p:not(.eyebrow){margin-left:auto;margin-right:auto}.about-art{order:2}.about-copy{text-align:center}.about-stats{grid-template-columns:repeat(3,1fr)}.about-stats div{justify-content:center}footer{grid-template-columns:1.5fr 1fr 1fr}.footer-note{text-align:left;grid-column:1/-1}.featured-idea,.library-card,.article-hero,.product-bridge,.library-grid{grid-template-columns:1fr}.article-layout{grid-template-columns:1fr;padding-top:60px}.article-layout aside{position:static}.inner-nav a:not(.nav-cta){display:none}}@media (width<=540px){.brand strong{font-size:22px}.brand-mark{width:36px;height:36px}.hero h1{font-size:55px}.hero-actions{flex-direction:column;gap:13px}.hero-visual{min-height:380px;margin:-20px auto -40px;transform:scale(.84)}.lesson-card{width:245px;height:330px}.card-back{left:-4%}.card-front{right:-8%}.product-grid,.benefit-grid{grid-template-columns:1fr}.product-cover{height:320px}.product-cover h3{font-size:34px}.cycle-item{grid-template-columns:28px 1fr 20px;gap:12px}.cycle-item p{display:none}.about-stats{gap:8px}.about-stats div{flex-direction:column}.newsletter form{grid-template-columns:1fr}.newsletter input{border-right:1px solid #bac8bf}.newsletter form button{min-height:50px}footer{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.product-modal{padding:35px 25px 25px}.product-modal ul{grid-template-columns:1fr}.idea-art{min-height:280px;padding:35px}.ideas-footer,.simple-footer{flex-direction:column;align-items:flex-start;gap:20px}.article-hero{padding:55px 24px}.place-grid{min-height:330px;padding:20px}.place-grid div{min-height:105px}.article-content{font-size:15px}.strategy-head{grid-template-columns:48px 1fr}.strategy-head>span{width:44px;height:44px}.strategy h2,.bridge h2,.product-bridge h2{font-size:29px}.bridge,.product-bridge{padding:30px 24px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition:none!important}}.library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.classroom-library-card{grid-template-columns:1fr}.classroom-library-card>div:last-child{padding:38px}.classroom-mini-art{background:#e0e9e1;grid-template-rows:.55fr 1fr .7fr;grid-template-columns:1.2fr .8fr;gap:10px;min-height:270px;padding:28px;display:grid}.classroom-mini-art span{color:#fff;letter-spacing:.7px;place-items:center;padding:10px;font-size:9px;font-weight:800;display:grid}.mini-whole{background:var(--teal);grid-column:1/-1}.mini-small{background:var(--coral)}.mini-independent{background:#6d8e79;grid-area:2/2/4}.mini-tools{background:var(--gold)}.classroom-map{background:#dce5da;grid-template-rows:.5fr 1.15fr .8fr;grid-template-columns:1.15fr .85fr;gap:12px;min-height:430px;padding:30px;display:grid}.classroom-map div{text-align:center;color:#fff;letter-spacing:1px;place-items:center;padding:14px;font-size:10px;font-weight:800;display:grid}.map-board{background:var(--teal);grid-column:1/-1}.map-whole{background:#6d8e79}.map-small{background:var(--coral)}.map-independent{background:var(--teal)}.map-tools{background:var(--gold)}.classroom-test{color:#fff;background:var(--teal-dark);margin:80px 0 0;padding:50px}.classroom-test h2{color:#fff;margin:10px 0 22px;font:500 37px/1.15 Georgia,serif}.classroom-test li{margin:11px 0}.classroom-test li::marker{color:var(--coral)}.classroom-test>p:last-child{color:#c9d8d4;margin-top:28px}@media (width<=800px){.library-grid{grid-template-columns:1fr}.classroom-map{min-height:350px}.classroom-test{padding:34px 28px}}.problem-library-card{grid-template-columns:1fr}.problem-library-card>div:last-child{padding:38px}.problem-mini-art{background:#e9dfcf;grid-template-columns:.65fr 1.35fr;align-items:center;gap:12px;min-height:270px;padding:34px;display:grid}.problem-mini-art span{color:#fff;background:var(--teal);letter-spacing:.8px;text-align:center;padding:10px;font-size:9px;font-weight:800}.problem-mini-art span:nth-of-type(2){background:var(--coral)}.problem-mini-art span:nth-of-type(3){background:#78947e}.problem-mini-art b{color:var(--teal-dark);text-align:center;background:#fff;padding:18px;font:500 23px Georgia,serif}.problem-article-hero{background:linear-gradient(135deg,var(--cream) 65%,#e2e9df 65%)}.equation-hero-art{background:#e5ddcf;border:1px solid #d5cabb;flex-direction:column;justify-content:center;min-height:440px;padding:38px;display:flex}.equation-hero-art span{color:#fff;background:var(--teal);letter-spacing:1.1px;align-self:flex-start;margin:9px 0 7px;padding:7px 10px;font-size:9px;font-weight:850}.equation-hero-art p{color:var(--teal-dark);background:#fff;margin:0 0 15px;padding:18px;font:17px/1.45 Georgia,serif}.equation-hero-art strong{color:#fff;background:var(--coral);text-align:center;padding:22px;font:500 36px Georgia,serif}.equation-hero-art .equation-answer{background:#78947e}.problem-example{border-left:5px solid var(--coral);color:var(--teal-dark);background:var(--cream);margin:28px 0;padding:28px 32px;font:22px/1.55 Georgia,serif}.progression-list{margin:28px 0;padding-left:22px}.progression-list li{margin:16px 0;padding-left:8px}.cycle-article-grid{grid-template-columns:repeat(5,1fr);gap:8px;margin-top:32px;display:grid}.cycle-article-grid div{background:var(--cream);border-top:5px solid var(--gold);min-height:155px;padding:18px 14px}.cycle-article-grid div:nth-child(2){border-color:var(--coral)}.cycle-article-grid div:nth-child(3){border-color:var(--sage)}.cycle-article-grid div:nth-child(4){border-color:var(--teal)}.cycle-article-grid div:nth-child(5){border-color:var(--teal-dark)}.cycle-article-grid b{color:var(--teal);letter-spacing:.8px;font-size:10px}.cycle-article-grid p{font-size:11px;line-height:1.55}.coming-soon-button{cursor:default}.coming-soon-button:hover{box-shadow:none;transform:none}.multistep-product{background:var(--coral)}.article-source{border-top:1px solid var(--line);color:var(--muted);padding-top:30px;font-size:12px;line-height:1.7}@media (width<=800px){.cycle-article-grid{grid-template-columns:1fr 1fr}.problem-article-hero{background:var(--cream)}}@media (width<=540px){.cycle-article-grid{grid-template-columns:1fr}.equation-hero-art{min-height:360px;padding:24px}.equation-hero-art strong{font-size:29px}}.family-guide-hero{background:linear-gradient(135deg,var(--cream) 64%,#e5ebe5 64%)}.guide-hero-art{background:#f2eee5;border:1px solid #ded6c9;grid-template-columns:1fr 1fr;align-content:center;gap:12px;min-height:440px;padding:42px;display:grid}.guide-hero-art span{color:#fff;background:var(--guide-accent);letter-spacing:1.2px;text-align:center;padding:14px 10px;font-size:10px;font-weight:850}.guide-hero-art span:nth-child(2),.guide-hero-art span:nth-child(3){background:var(--teal)}.guide-hero-art b{color:var(--teal-dark);text-align:center;background:#fff;grid-column:1/-1;margin-top:8px;padding:28px;font:500 30px/1.2 Georgia,serif}.guide-hero-art em{color:var(--guide-accent);font-weight:500}.family-mini-product{transform:rotate(2deg)}.family-library-card{grid-template-columns:1fr;overflow:hidden}.family-library-card>div:last-child{padding:38px}.family-card-art{background:#ede8de;grid-template-columns:1fr 1fr;align-content:center;gap:10px;min-height:290px;padding:32px;display:grid}.family-card-art span{color:var(--guide-accent);grid-column:1/-1;font:62px Georgia,serif}.family-card-art b{color:#fff;background:var(--guide-accent);letter-spacing:1px;text-align:center;padding:16px 10px;font-size:9px}.family-card-art b:last-child{background:var(--teal);grid-column:1/-1}@media (width<=800px){.family-guide-hero{background:var(--cream)}.guide-hero-art{min-height:340px;padding:26px}.family-card-art{min-height:240px}}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}