@font-face{font-family:GC Inter;src:url('img/gramcore/fonts/gramcore-latin.woff2') format('woff2');font-weight:400 900;font-display:swap}
@font-face{font-family:GC Noto;src:url('img/gramcore/fonts/gramcore-jp.woff2') format('woff2');font-weight:400 900;font-display:swap}
.gc-structures{--bg:#101010;--panel:#1e1e20;--ink:#f5f5f7;--muted:#a6a6ab;--pink:linear-gradient(105deg,#ff8266 5%,#ff268c 55%,#b000f5 95%);--violet:linear-gradient(100deg,#eb91df,#983aff);background:var(--bg);color:var(--ink);font-family:GC Inter,GC Noto,'Hiragino Kaku Gothic ProN',sans-serif;font-weight:500;overflow-x:clip}
.gc-structures main{overflow:clip}.gc-structures button{font-family:inherit}.gc-structures [id]{scroll-margin-top:78px}.content-width{width:calc(100% - 80px);max-width:960px;margin-inline:auto}.spectrum,.violet,.fresh-gradient{color:transparent;background:var(--pink);background-clip:text;-webkit-background-clip:text}.violet{background-image:var(--violet)}.fresh-gradient{background-image:linear-gradient(100deg,#00d9e8,#83fb42 85%)}.large-heading{font-size:56px;font-weight:700;line-height:1.25;letter-spacing:-.025em}.section-intro{text-align:center;max-width:880px;margin:0 auto 48px}.section-intro>p{font-size:20px;line-height:1.55;font-weight:700;margin:30px auto 0}.section-intro .text-link{color:#2997ff;margin-top:24px}.gc-structures .site-button{min-height:36px;padding:7px 18px;line-height:22px;font-size:16px;border:0;background:#007dff}.gc-structures .site-button:hover{background:#2290ff}.gc-structures .site-button::before{display:none}.gc-nav{position:fixed;z-index:60;inset:0 0 auto;height:51px;border-bottom:1px solid #464646;background:rgba(16,16,16,.88);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.gc-nav-inner{height:100%;width:calc(100% - 48px);max-width:1100px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.gc-wordmark{font-size:24px;font-weight:500;letter-spacing:-.5px;white-space:nowrap}.gc-wordmark strong{font-weight:700}.gc-nav .nav-buy{min-height:30px;padding:4px 21px;line-height:22px;font-size:13px;position:relative}.gc-nav .nav-buy::after{content:'';position:absolute;inset:-7px 0}
.opening,.closing{height:900px;height:min(100svh,900px);min-height:700px;position:relative;display:grid;place-items:center;isolation:isolate;overflow:hidden}.hero-word{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) translateX(var(--word-shift,0px));font-size:26.5vw;line-height:1;font-weight:800;letter-spacing:-.06em;font-style:italic;white-space:nowrap;background:linear-gradient(130deg,#828282,#f5f5f5 55%,#b5b5b5);color:transparent;background-clip:text;-webkit-background-clip:text;user-select:none}.hero-scene,.closing-scene{position:relative;z-index:1;background:none;border:0;padding:0;perspective:1300px;cursor:zoom-in;width:382px}.book-object{position:relative;width:100%;aspect-ratio:800/1132;transform-style:preserve-3d;transform:rotateY(20deg) rotateZ(2deg);transition:transform .7s ease}.book-front{position:absolute;inset:0;transform:translateZ(14px);background:#090909;box-shadow:12px 18px 30px #0003;overflow:hidden}.book-front img{width:100%;height:100%;object-fit:contain}.book-front::after{content:'';position:absolute;inset:0;background:linear-gradient(110deg,#ffffff1c,transparent 15%,transparent 88%,#0003);pointer-events:none}.book-spine{position:absolute;top:0;bottom:0;left:-14px;width:28px;transform:rotateY(-90deg);background:linear-gradient(90deg,#191919,#333 40%,#0d0d0d);color:#f3f3f3;display:flex;align-items:center;justify-content:space-between;padding:13px 2px;writing-mode:vertical-rl;font-size:12px;line-height:1.2}.book-spine strong{font-size:15px;letter-spacing:-.3px}.book-pages{position:absolute;top:3px;bottom:3px;right:-14px;width:28px;transform:rotateY(90deg);background:repeating-linear-gradient(90deg,#bbb 0 1px,#f5f5f5 1px 3px)}.textbook .book-spine{background:linear-gradient(90deg,#ddd,#fff 50%,#c7c7c7);color:#171717}.hero-scene .book-object{transform:rotateY(var(--hero-turn,20deg)) rotateZ(2deg);transition:none}.hero-scene:hover .book-front::after{background:linear-gradient(110deg,#ffffff2c,transparent 30%)}.intro{padding:120px 0 100px}.intro-word{font-size:80px;line-height:1.2;font-weight:600;letter-spacing:-.055em;color:#d6d6d6;margin-bottom:55px}.intro-word span{display:inline-flex;align-items:center;justify-content:center;border:3px solid #bfc0c5;border-radius:16px;font-size:48px;font-weight:400;width:64px;height:68px;vertical-align:middle;letter-spacing:0;margin-left:10px}.intro .large-heading{max-width:780px}.intro-body{font-size:24px;line-height:1.8;font-weight:700;margin-top:52px}.intro-body p+p{margin-top:22px}.intro-body p:last-child{margin-top:50px}.resting-stage{height:670px;position:relative;overflow:hidden;perspective:1400px}.resting-scene{position:absolute;width:720px;left:50%;top:50%;transform:translate(-32%,-50%) rotateX(67deg) rotateZ(-10deg);transform-style:preserve-3d}.resting-scene .book-object{transform:rotateY(-4deg)}.resting-scene .book-spine{width:40px;left:-20px;font-size:20px}.resting-scene .book-front{transform:translateZ(20px)}.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding:30px 0 70px}.quick-card{background:var(--panel);border-radius:24px;min-height:370px;padding:38px 22px;text-align:center;display:flex;align-items:center;flex-direction:column}.feature-icon{width:84px;height:84px;border-radius:28px;display:grid;place-items:center;color:#268bff;background:#192736;margin-bottom:28px}.feature-icon svg{width:44px;height:44px}.quick-card h3{font-size:22px;line-height:1.3;font-weight:700}.quick-card p{font-size:15px;line-height:1.5;font-weight:700;margin:12px 0 34px}.quick-card .site-button{margin-top:auto}.structure-section{padding:20px 40px 40px}.structure-demo{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:48px;margin-top:48px}.structure-book{width:88%;max-width:380px;perspective:1300px;margin:auto}.structure-book .book-object{transform:rotateY(16deg) rotateZ(0deg)}.structure-cards{display:grid;gap:24px}.example-tile{border-radius:24px;background:var(--panel);padding:24px;min-height:174px}.example-tile>span{font-size:14px;line-height:1.6;font-weight:400;color:#e6e6e6}.example-tile b{font-weight:400;border:1px solid #777;border-radius:4px;padding:1px 4px}.example-tile h3{font-size:30px;line-height:1.3;font-weight:700;margin:10px 0}.example-tile p{font-size:18px;line-height:1.5;font-weight:700;color:#b9b9bd}.number-banner{display:flex;align-items:center;justify-content:center;border-radius:24px;background:#202020;padding:28px 20px;text-align:center;margin-top:28px;min-height:140px;font-size:34px;font-weight:700;line-height:1.4}.number-banner strong{font-size:68px;letter-spacing:-.055em;margin-right:10px}.light-section{background:#fff;color:#1d1d1f;padding:40px 0}.light-panel{background:linear-gradient(#f1f4f6 40%,#899194);border-radius:24px;overflow:hidden;padding-top:42px}.light-panel>.section-intro{padding:0 40px}.open-spread{width:90%;display:flex;margin:80px auto 50px;perspective:1800px;transform:rotate(-7deg);filter:drop-shadow(0 24px 16px #0003)}.open-spread>div{width:50%;transform-origin:right center;transform:rotateY(10deg)}.open-spread .spread-right{transform-origin:left center;transform:rotateY(-10deg)}.open-spread .preview-image{box-shadow:none;border-radius:0}.spread-left::after,.spread-right::after{content:'';position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,transparent 70%,#0002)}.spread-right::after{background:linear-gradient(90deg,#0002,transparent 30%)}.preview-image{padding:0;border:0;background:#fff;position:relative;display:block;width:100%;cursor:zoom-in;overflow:hidden;box-shadow:0 10px 30px #0002}.preview-image img{width:100%;height:auto}.expand-mark{position:absolute;bottom:16px;right:16px;display:grid;place-items:center;width:36px;height:36px;border-radius:50%;font-size:24px;font-weight:400;background:#292929e6;color:#fff}.example-carousel{margin:80px 0 70px}.example-rail,.nuance-rail{padding:0 40px 12px;scroll-padding-inline:40px;gap:100px}.sample-card{background:#f1f2f5;border-radius:24px;padding:40px;width:704px;color:#1d1d1f}.sample-label{font-size:16px;color:#777;font-weight:400}.sample-card>h3{font-size:34px;line-height:1.3;margin:12px 0 8px;font-weight:700}.sample-subtitle{font-size:20px;font-weight:700;line-height:1.5;margin-bottom:30px}.sample-example+.sample-example{margin-top:24px}.example-number{display:flex;align-items:center;gap:12px;color:#85858b;font-size:18px;margin-bottom:8px}.example-number span{height:1px;background:#d4d4dc;flex:1}.english{font-size:26px;font-weight:600;line-height:1.45;letter-spacing:-.035em}.english em{font-style:normal;background:linear-gradient(100deg,#fc319c,#943dff);color:transparent;background-clip:text;-webkit-background-clip:text}.translation{font-size:23px;font-weight:700;line-height:1.5;margin-top:10px}.explanation{font-size:17px;line-height:1.6;font-weight:500;color:#67676c;margin-top:10px}.rail-controls{display:flex;gap:12px;align-items:center;justify-content:flex-end;margin:22px 40px 0}.rail-controls .carousel-status{font-size:13px;opacity:.6;margin-right:6px}.rail-controls button{width:38px;height:38px;border:0;border-radius:50%;font-size:26px;line-height:1;color:inherit;background:#ffffff25}.light-section .rail-controls button{background:#f1f2f5}.rail-controls button:disabled{opacity:.3;cursor:default}.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:0 40px 40px}.stat-tile{padding:32px 40px;background:#f1f4f6;border-radius:24px}.stat-tile>span{font-size:20px;color:#858589}.stat-tile>strong{display:block;font-size:64px;line-height:1.3;margin-top:8px}.stat-tile small{font-size:28px;font-weight:700}.family-section{padding-top:100px}.family-section .section-intro{padding-inline:35px}.family-books{height:650px;position:relative;overflow:hidden;perspective:1800px;margin-top:10px}.family-book{position:absolute;width:260px;bottom:-20px;left:calc(2% + var(--offset)*10%);z-index:var(--offset);transform:translateY(calc((6 - var(--offset))*52px))}.family-1{--offset:0}.family-2{--offset:1}.family-3{--offset:2}.family-4{--offset:3}.family-5{--offset:4}.family-6{--offset:5}.family-7{--offset:6}.family-book .book-object{transform:rotateY(26deg);transform-origin:left}.family-books::after{content:'';position:absolute;bottom:-1px;left:0;right:0;height:130px;z-index:10;background:linear-gradient(transparent,var(--bg));pointer-events:none}.nuance-panel{position:relative;background:var(--panel);border-radius:24px;padding:56px 0 40px;margin-top:-18px;z-index:11}.nuance-panel>.section-intro{padding:0 40px}.nuance-rail{gap:40px}.nuance-card{width:704px;padding:40px;background:#28282a;border-radius:24px}.nuance-card>span:first-child{font-size:16px;color:#aaa;font-weight:400}.nuance-card h3{font-size:34px;line-height:1.3;margin:16px 0 8px}.nuance-card h4{font-size:20px;line-height:1.5}.nuance-card .explain-label{display:block;font-size:14px;color:#aaa;margin-top:26px}.nuance-card>p{font-size:23px;line-height:1.7;font-weight:700;margin-top:12px}.nuance-panel .number-banner{margin:30px 40px 0;background:#28282a}.method-section{padding:100px 40px 60px}.twin-books{height:670px;position:relative;perspective:1400px;margin-top:60px}.twin-books>div{position:absolute;width:340px;left:calc(50% - 315px);top:105px;transform:rotate(-17deg)}.twin-books>div+div{left:calc(50% - 55px);top:10px;transform:rotate(12deg);z-index:1}.twin-books .book-object{transform:rotateY(15deg)}.workshop-demo{background:var(--panel);border-radius:24px;padding:34px 40px}.eyebrow{font-size:14px;color:#aaa}.workshop-sentence{font-size:38px;font-weight:700;margin:24px 0 16px;letter-spacing:-.035em}.workshop-question{font-size:20px;line-height:1.5}.answer-reveal{margin-top:30px;border-top:1px solid #444}.answer-reveal summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;padding:18px 0 0;color:#2997ff;font-size:17px;min-height:44px}.answer-reveal summary::-webkit-details-marker{display:none}.answer-reveal[open] summary span{transform:rotate(45deg)}.answer-reveal>div{padding:20px 0 0;font-size:18px;line-height:1.8;color:#d7d7db}.answer-reveal>div p+p{margin-top:12px}.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;padding-top:30px}.feature-panel{border-radius:24px;background:var(--panel);padding:40px 40px 0;overflow:hidden;text-align:center}.feature-panel.full{grid-column:1/-1}.feature-panel h2{font-size:32px;line-height:1.4;font-weight:700}.feature-panel>p{font-size:20px;font-weight:700;line-height:1.6;margin:24px 0 40px}.time-chips{display:flex;justify-content:center;gap:24px;margin:10px auto 44px}.time-chips span{font-size:24px;font-weight:700;color:#e8b1fc;border:1px solid #b676d4;border-radius:12px;padding:16px 46px}.two-pages{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start;max-height:530px;overflow:hidden}.two-pages .preview-image{height:auto}.feature-panel .panel-icon{display:block;color:#b99bff;margin-bottom:20px}.panel-icon svg{width:44px;height:44px;margin:auto}.feeling-art{display:flex;flex-direction:column;justify-content:center;gap:18px;border-radius:24px 24px 0 0;background:linear-gradient(125deg,#f7e8e8,#eddcf8);color:#252026;padding:44px 10px;min-height:250px}.feeling-art strong{font-size:48px;letter-spacing:-.045em}.feeling-art span{font-size:17px}.feature-sheet{height:250px;border-radius:18px 18px 0 0}.gradient-panel{background:linear-gradient(110deg,#ef3e99,#8533fb);padding-bottom:0}.gradient-panel .two-pages{max-height:580px}.curriculum-panel{margin-top:24px;border-radius:24px;background:var(--panel);padding:48px 40px 35px}.curriculum-panel>.large-heading{text-align:center;font-size:48px}.curriculum-note{text-align:center;color:#b8b8be;margin:20px 0 48px;font-size:18px}.stage-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px 24px}.stage-open{position:relative;display:block;width:100%;height:100%;border:0;background:transparent;color:inherit;text-align:left;padding:0 0 45px;border-bottom:1px solid #38383b;cursor:pointer}.stage-mini-covers{display:flex;align-items:center;gap:8px;height:168px;margin-bottom:18px}.stage-mini-covers img{width:calc(50% - 4px);max-width:107px;max-height:152px;object-fit:contain;transition:transform .3s}.stage-open:hover img{transform:translateY(-5px)}.stage-label{color:var(--stage);font-size:13px}.stage-card h3{font-size:23px;line-height:1.3;font-weight:700;margin:10px 0;overflow-wrap:anywhere}.stage-role{font-size:14px;line-height:1.6;color:#aaa}.stage-plus{position:absolute;right:0;bottom:12px;width:26px;height:26px;border:2px solid #ddd;border-radius:50%;display:grid;place-items:center;font-size:19px;line-height:1}.bundle-section{margin:40px 40px 0;padding:60px 0 40px;border-radius:32px;background:radial-gradient(ellipse at 100% 0%,#ffb000 0%,transparent 55%),radial-gradient(ellipse at 0% 100%,#a02b8c,transparent 60%),linear-gradient(120deg,#ff5b50 0%,#ff0057 50%,#ff6854 100%)}.bundle-section>.content-width{width:calc(100% - 80px)}.bundle-eyebrow{display:block;font-size:21px;font-weight:400;margin-bottom:26px}.bundle-section .section-intro>p{font-size:18px;font-weight:500}.bundle-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.bundle-card{min-width:0;background:#f1f4f6;border-radius:28px;color:#1d1d1f;padding:24px 20px;display:flex;flex-direction:column;overflow:hidden}.bundle-covers{position:relative;height:220px;display:flex;align-items:center;justify-content:center;margin:15px 0 22px}.bundle-covers img{width:42%;margin-left:-18%;box-shadow:0 12px 18px #0003;transform:perspective(500px) rotateY(-18deg)}.bundle-covers img:first-child{margin-left:0}.bundle-covers img:nth-child(2){transform:perspective(500px) rotateY(-18deg) translateY(-8px)}.bundle-card>h3{font-size:26px;line-height:1.3;font-weight:700}.bundle-card>p{font-size:16px;line-height:1.6;margin-top:16px}.bundle-card ul{list-style:none;padding:0;margin:24px 0}.bundle-card li{position:relative;font-size:14px;line-height:1.6;padding:13px 0 13px 22px;border-bottom:1px solid #d9dce0}.bundle-card li::before{content:'✓';position:absolute;left:0;top:13px;font-size:16px}.bundle-card .included{color:#777;font-size:13px;margin-top:auto;padding:24px 0 14px}.bundle-card>.site-button{width:100%;font-size:14px;margin-top:0}.bundle-pair{height:190px;display:flex;justify-content:center;gap:12px;align-items:center;margin:12px 0 18px}.bundle-pair img{width:43%;max-height:180px;object-fit:contain;filter:drop-shadow(0 5px 8px #0003)}.price-panel .offer-label{font-size:13px;color:#bf5b05}.price-panel h3{font-size:24px;line-height:1.3;margin-top:8px}.price-panel>p{font-size:13px;line-height:1.5;color:#68686d;margin-top:10px}.price-panel del{display:block;font-size:13px;color:#777;margin:20px 0 3px}.price{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline}.price strong{font-size:40px;line-height:1.15;font-weight:700;letter-spacing:-.04em}.price small{font-size:11px;color:#6e6e73}.price-panel ul{margin:20px 0}.price-panel li{font-size:13px;padding-block:9px}.price-panel li::before{top:9px}.price-panel .purchase-button{width:100%;min-height:40px;font-size:14px}.price-panel .payment-note{text-align:center;font-size:11px;line-height:1.6}.faq-section{padding:70px 40px}.faq-section>h2{font-size:32px;margin-bottom:30px}.faq-section details{border-bottom:1px solid #424245}.faq-section summary{padding:24px 0;font-size:18px;font-weight:700;cursor:pointer;line-height:1.6}.faq-section details p{font-size:16px;color:#aaa;line-height:1.8;padding-bottom:24px}.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.related-card{position:relative;display:block;border-radius:24px;background:#f1f4f6;color:#1d1d1f;text-align:center;height:570px;padding:35px 20px;overflow:hidden}.related-card>p{font-size:17px;line-height:1.5;font-weight:700}.related-card h2{font-size:30px;line-height:1.4;margin-top:12px}.related-card .text-link{margin-top:10px}.related-covers{position:absolute;bottom:0;left:18%;right:18%;display:flex;gap:12px;align-items:center}.related-covers img{width:calc(50% - 6px);box-shadow:0 6px 12px #0002}.related-covers img+img{transform:translateY(20px)}.related-screen{width:720px;max-width:none;height:290px;object-fit:cover;object-position:left top;border:6px solid #222;border-radius:15px;position:absolute;left:35px;bottom:-10px}.closing{height:800px;min-height:600px;margin-top:40px}.closing-scene{cursor:pointer;width:350px}.gc-footer{font-size:12px;line-height:1.6;color:#96969a;padding:26px 0 32px}.gc-footer .content-width{padding-inline:0}.gc-footer p{font-size:12px;line-height:1.7;margin-bottom:24px}.footer-breadcrumb{display:flex;gap:18px;align-items:center;border-top:1px solid #444;border-bottom:1px solid #444;padding:18px 0}.footer-breadcrumb .site-brand{color:#ddd}.gc-footer-bottom{display:flex;gap:16px;flex-wrap:wrap;padding-top:20px}.gc-footer-bottom>span{margin-right:auto}.gc-footer a:hover{text-decoration:underline}.gc-structures .site-dialog{background:#f5f5f7;font-weight:500}.gc-structures .media-dialog img{width:auto;max-width:100%;max-height:none;margin:auto}.gc-structures .media-dialog{width:min(850px,calc(100% - 32px))}.stage-dialog{max-width:820px}.stage-dialog-label{color:#6e6e73;font-size:15px;margin-bottom:12px}.stage-dialog-role{font-size:18px;line-height:1.6}.stage-dialog-covers{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin:32px auto;max-width:530px}.stage-dialog-covers img{width:100%;box-shadow:0 12px 28px #0002}.stage-dialog-covers figcaption{text-align:center;font-size:14px;margin-top:14px}.stage-dialog-note{font-size:14px;color:#666;margin:0 0 20px}.stage-dialog .site-button{font-size:16px;min-height:44px}.will-reveal{opacity:0;translate:0 28px;transition:opacity .7s ease,translate .8s cubic-bezier(.2,.65,.2,1)}.will-reveal.is-visible{opacity:1;translate:0 0}
@media(min-width:1800px){.hero-word{font-size:470px}}
@media(max-width:1068px){.content-width{width:calc(100% - 64px)}.intro-body{font-size:21px}.intro-body br{display:none}.structure-section{padding-inline:0}.structure-demo{gap:32px}.example-tile h3{font-size:27px}.feature-panel{padding-inline:28px}.time-chips span{padding:14px 30px}.bundle-section{margin-inline:24px}.bundle-section>.content-width{width:calc(100% - 48px)}.bundle-grid{gap:18px}.bundle-card{padding:22px 15px}.bundle-card>h3{font-size:24px}.bundle-covers{height:190px}.bundle-pair{height:170px}.price-panel h3{font-size:23px}.price strong{font-size:36px}.stage-card h3{font-size:21px}.family-book{width:240px}.family-books{height:590px}.section-intro>p br{display:none}.related-card h2{font-size:25px}}
@media(max-width:767px){.content-width{width:calc(100% - 24px)}.gc-nav{height:49px}.gc-nav-inner{width:calc(100% - 40px)}.gc-wordmark{font-size:21px}.gc-nav .nav-buy{font-size:12px;min-height:28px;padding:3px 16px}.opening{height:700px;min-height:700px}.hero-word{font-size:29vw;letter-spacing:-.07em}.hero-scene{width:260px}.intro{padding:100px 0 50px}.intro-word{font-size:48px;line-height:1.2;margin-bottom:10px}.intro-word span{font-size:29px;border-width:2px;width:39px;height:42px;border-radius:10px;margin-left:6px}.large-heading{font-size:34px;line-height:1.25;letter-spacing:-.035em}.intro .large-heading{margin-top:12px}.intro-body{font-size:20px;line-height:1.75;margin-top:42px}.intro-body p+p{margin-top:25px}.intro-body p:last-child{margin-top:40px}.resting-stage{height:500px}.resting-scene{width:420px;transform:translate(-42%,-50%) rotateX(65deg) rotateZ(-12deg)}.quick-grid{grid-template-columns:1fr;padding:15px 24px 40px;gap:24px}.quick-card{min-height:306px;padding:28px 22px}.feature-icon{width:64px;height:64px;border-radius:22px;margin-bottom:20px}.feature-icon svg{width:38px;height:38px}.quick-card h3{font-size:22px}.quick-card p{margin-bottom:26px}.gc-structures .site-button{font-size:14px;min-height:36px;padding:7px 18px}.section-intro{margin-bottom:36px}.section-intro>p{font-size:18px;line-height:1.65;margin-top:28px}.section-intro>p br{display:none}.structure-section{padding:15px 24px 32px}.structure-demo{grid-template-columns:1fr;gap:40px;margin-top:42px}.structure-book{max-width:270px;width:90%;margin-bottom:10px}.structure-cards{gap:24px}.example-tile{padding:24px;min-height:180px}.example-tile>span{font-size:13px}.example-tile h3{font-size:28px;line-height:1.35;letter-spacing:-.02em}.example-tile p{font-size:18px;line-height:1.6}.number-banner{padding:24px 12px;font-size:22px;min-height:108px;line-height:1.3}.number-banner strong{font-size:44px;margin-right:6px}.light-section{padding:32px 0}.light-panel{padding-top:38px}.light-panel>.section-intro{padding-inline:24px}.open-spread{width:100%;margin:64px auto 36px;transform:rotate(-7deg) scale(.94)}.expand-mark{width:28px;height:28px;font-size:21px;right:8px;bottom:8px}.example-carousel{margin:36px 0 40px}.example-rail,.nuance-rail{padding-inline:24px;scroll-padding-inline:24px;gap:28px}.sample-card{width:calc(100vw - 72px);padding:25px 24px}.sample-label{font-size:12px}.sample-card>h3{font-size:28px;line-height:1.3}.sample-subtitle{font-size:18px;line-height:1.5;margin-bottom:26px}.example-number{font-size:15px}.english{font-size:23px;line-height:1.4}.translation{font-size:19px;line-height:1.6}.explanation{font-size:15px;line-height:1.7}.sample-example+.sample-example{margin-top:24px}.rail-controls{margin:16px 24px 0}.stat-grid{padding:0 24px 30px;gap:16px}.stat-tile{padding:20px 16px;border-radius:18px}.stat-tile>span{font-size:13px;line-height:1.6;display:block}.stat-tile>strong{font-size:40px;line-height:1.2;margin-top:12px}.stat-tile small{font-size:17px;display:block;margin-top:8px}.family-section{padding-top:64px}.family-section .section-intro{padding-inline:24px}.family-books{height:355px;width:100%;margin-top:0}.family-book{width:150px;left:calc(-5% + var(--offset)*10%);bottom:-30px;transform:translateY(calc((6 - var(--offset))*28px))}.family-books::after{height:65px}.nuance-panel{padding-top:40px;margin-top:-5px;padding-bottom:24px}.nuance-panel>.section-intro{padding-inline:24px}.nuance-panel .large-heading{font-size:32px}.nuance-card{padding:24px;width:calc(100vw - 72px);border-radius:22px}.nuance-card>span:first-child{font-size:13px}.nuance-card h3{font-size:25px}.nuance-card h4{font-size:19px;line-height:1.6}.nuance-card>p{font-size:19px;line-height:1.75}.nuance-panel .number-banner{margin:25px 24px 0;font-size:19px}.nuance-panel .number-banner strong{font-size:39px}.method-section{padding:64px 24px 30px}.twin-books{height:395px;margin-top:40px}.twin-books>div{width:175px;left:calc(50% - 155px);top:95px}.twin-books>div+div{left:calc(50% - 20px);top:20px}.workshop-demo{padding:26px 24px}.eyebrow{font-size:12px}.workshop-sentence{font-size:27px;line-height:1.4}.workshop-question{font-size:17px;line-height:1.7}.answer-reveal summary{font-size:15px}.answer-reveal>div{font-size:16px}.feature-grid{grid-template-columns:1fr;padding-top:28px;gap:24px}.feature-panel{padding:32px 24px 0}.feature-panel h2{font-size:28px;line-height:1.4}.feature-panel>p{font-size:18px;line-height:1.7;margin:25px 0 32px}.feature-panel>p br{display:none}.time-chips{gap:12px;margin-bottom:32px}.time-chips span{font-size:18px;padding:14px 21px}.two-pages{gap:10px;max-height:360px}.feature-panel.full .two-pages{grid-template-columns:1fr;max-height:410px}.feature-panel.full .two-pages .preview-image:last-child{display:none}.gradient-panel .two-pages{max-height:410px}.feature-sheet{height:275px}.feeling-art{min-height:250px}.curriculum-panel{padding:38px 24px 28px}.curriculum-panel>.large-heading{font-size:30px}.curriculum-note{font-size:16px;line-height:1.7;margin:22px 0 30px}.stage-grid{grid-template-columns:1fr 1fr;gap:28px 18px}.stage-mini-covers{height:116px;gap:6px;margin-bottom:14px}.stage-mini-covers img{width:calc(50% - 3px)}.stage-label{font-size:10px;display:block;line-height:1.6}.stage-card h3{font-size:18px;line-height:1.4;letter-spacing:-.025em}.stage-role{font-size:12px;line-height:1.6;display:block}.stage-open{padding-bottom:40px}.stage-plus{width:24px;height:24px;font-size:17px}.bundle-section{margin:32px 12px 0;border-radius:24px;padding:40px 0 24px}.bundle-section>.content-width{width:calc(100% - 40px)}.bundle-eyebrow{font-size:18px;margin-bottom:24px}.bundle-section .large-heading{font-size:32px;line-height:1.3}.bundle-section .section-intro>p{font-size:15px;margin-top:24px}.bundle-grid{grid-template-columns:1fr;gap:24px}.bundle-card{padding:25px 24px;border-radius:24px}.bundle-covers{height:220px;margin-top:0}.bundle-covers img{width:43%}.bundle-card>h3{font-size:28px}.bundle-card>p{font-size:17px}.bundle-card li{font-size:15px}.bundle-card .included{padding-top:12px}.bundle-card>.site-button{min-height:40px;font-size:16px}.bundle-pair{height:225px;gap:16px;margin:0 0 24px}.bundle-pair img{max-height:220px}.price-panel h3{font-size:28px}.price-panel>p{font-size:14px}.price-panel .offer-label{font-size:14px}.price-panel del{font-size:14px}.price strong{font-size:48px}.price small{font-size:12px}.price-panel li{font-size:14px}.price-panel .purchase-button{font-size:16px;min-height:44px}.price-panel .payment-note{font-size:12px}.faq-section{padding:56px 24px}.faq-section>h2{font-size:28px}.faq-section summary{font-size:17px}.related-grid{grid-template-columns:1fr;gap:24px}.related-card{height:480px;padding-top:34px}.related-card h2{font-size:28px}.related-covers{left:18%;right:18%}.related-screen{height:255px;width:620px;left:25px}.closing{height:650px;min-height:650px;margin-top:20px}.closing-scene{width:240px}.gc-footer{padding:20px 24px 30px}.gc-footer .content-width{width:100%}.gc-footer-bottom{gap:10px 16px}.gc-footer-bottom>span{width:100%;margin-bottom:5px}.gc-structures .media-dialog{padding:16px}.stage-dialog{padding:44px 24px 30px}.stage-dialog h2{font-size:27px}.stage-dialog-label{font-size:13px}.stage-dialog-role{font-size:16px}.stage-dialog-covers{gap:20px}.stage-dialog-note{line-height:1.6}.stage-dialog .site-button{min-height:44px}}
@media(max-width:360px){.gc-wordmark{font-size:19px}.gc-nav-inner{width:calc(100% - 32px)}.hero-scene{width:235px}.large-heading{font-size:30px}.intro-word{font-size:43px}.intro-body{font-size:18px}.quick-grid{padding-inline:14px}.quick-card h3{font-size:20px}.section-intro>p{font-size:17px}.structure-section{padding-inline:18px}.example-tile h3{font-size:25px}.sample-card,.nuance-card{padding:22px 20px}.stat-tile{padding-inline:12px}.stat-tile small{font-size:14px}.family-book{width:130px}.family-books{height:310px}.method-section{padding-inline:18px}.twin-books>div{width:150px;left:calc(50% - 130px)}.twin-books>div+div{left:calc(50% - 20px)}.twin-books{height:355px}.time-chips{gap:8px}.time-chips span{padding:12px 17px}.curriculum-panel{padding-inline:20px}.curriculum-panel>.large-heading{font-size:27px}.stage-card h3{font-size:16px}.stage-mini-covers{height:95px}.bundle-section .large-heading{font-size:28px}.bundle-card{padding-inline:20px}.price-panel h3{font-size:26px}.related-card h2{font-size:25px}}
@media(prefers-reduced-motion:reduce){.will-reveal{opacity:1;translate:none}.book-object{transition:none}}

.bundle-covers img,.bundle-pair img,.stage-mini-covers img,.related-covers img{height:auto}
@media(max-width:600px){.gc-structures .gc-nav .nav-buy{min-height:28px;padding:3px 13px;font-size:12px}}

.keep-phrase{display:inline-block}