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10px;font-size:12px;line-height:1.75}.learning-examples-footer{margin-top:16px}.learning-examples-footer>.button{width:100%;min-height:44px}}@layer reset{*{box-sizing:border-box}body,h1,h2,h3,p{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{color:inherit}svg{flex-shrink:0}button,input,select{touch-action:manipulation}}@layer base{:root{--ink:#20241d;--muted:#697160;--paper:#f8f9f4;--lime:#d8f569;--line:#dce0d5;--blue:#3565d8;--white:#fff;--soft:#f0f3e9;color:var(--ink);background:var(--paper);font-synthesis:none;font-family:Inter Variable,Inter,-apple-system,BlinkMacSystemFont,Noto Sans,Noto Sans JP,Hiragino Kaku Gothic ProN,Yu 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h3{letter-spacing:0;line-height:1.45}}@layer components{.visually-hidden{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;position:absolute!important}.skip-link{background:var(--ink);color:#fff;z-index:100;padding:14px;position:fixed;top:-60px;left:20px}.skip-link:focus{top:10px}.site-header{z-index:20;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#f8f9f4f0;border-bottom:1px solid #dce0d58c;height:89px;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:25px;max-width:1184px;height:100%;margin:auto;display:flex}.brand{flex-shrink:0;align-items:center;gap:12px;display:flex}.wordmark{letter-spacing:.025em;font-family:Inter Variable,sans-serif;font-size:26px;font-weight:850;line-height:1}.brand-dot{color:#88a622}.byline{color:var(--muted);white-space:nowrap;padding-top:6px;font-size:10px}.main-nav{border:1px solid var(--line);border-radius:30px;align-items:center;gap:4px;margin-left:-60px;padding:4px;display:flex}.main-nav a{border-radius:23px;justify-content:center;align-items:center;gap:6px;padding:10px 24px;font-size:12px;font-weight:650;display:flex}.main-nav a.active{background:var(--lime);color:#27340e}.main-nav a:hover:not(.active){background:#eef0e6}.language-control{border:1px solid var(--line);border-radius:24px;align-items:center;gap:8px;max-width:190px;padding:9px 12px;display:flex}.language-control select{max-width:140px;color:var(--ink);cursor:pointer;background:0 0;border:0;padding-right:3px;font-size:12px}.main-content{max-width:1184px;min-height:calc(100vh - 215px);margin:auto}.eyebrow{text-transform:uppercase;letter-spacing:.18em;align-items:center;gap:9px;margin-bottom:16px;font-size:10px;font-weight:750;line-height:1.7;display:flex}.eyebrow.blue{color:var(--blue)}.hero{grid-template-columns:1.1fr 1fr;align-items:center;gap:66px;min-height:420px;padding:58px 0 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#e4ebcd;border-radius:24px;height:323px;position:relative;overflow:hidden}.transform-card-top{letter-spacing:.14em;text-transform:uppercase;z-index:2;justify-content:space-between;align-items:center;font-size:10px;font-weight:600;display:flex;position:absolute;top:24px;left:28px;right:23px}.transform-replay{border-color:#cfdaa9;width:31px;height:31px}.hero-sculpture{object-fit:contain;filter:drop-shadow(0 8px 9px #77872716);width:282px;height:282px;position:absolute;top:9px;right:5px}.transformation{letter-spacing:-.05em;z-index:3;background:#fffffff0;border:1px solid #fff;border-radius:15px;align-items:center;gap:17px;padding:19px 22px;font-size:31px;animation:.3s both form-in;display:flex;position:absolute;bottom:70px;left:28px;box-shadow:0 7px 16px #4c632008}.transformation strong{color:#394b07;background:var(--lime);border-radius:7px;padding:3px 9px;font-weight:750}.transform-card-bottom{letter-spacing:.05em;justify-content:space-between;align-items:center;font-size:10px;display:flex;position:absolute;bottom:25px;left:29px;right:29px}.transform-card-bottom>span:first-child{align-items:center;gap:8px;display:flex}.demo-counter{font-size:11px;font-weight:700}.demo-counter span{color:#879265;font-weight:400}.curriculum{border-top:1px solid var(--line);padding:35px 0 0;scroll-margin-top:95px}.curriculum-heading{justify-content:space-between;align-items:center;gap:24px;margin-bottom:27px;display:flex}.curriculum-heading .eyebrow{margin-bottom:10px}.curriculum h2{letter-spacing:-.045em;font-size:29px;font-weight:780}.curriculum-heading p:last-child{color:var(--muted);margin-top:10px;font-size:12px}.curriculum-mark{color:#899477;background:#eef1e7;border-radius:15px;padding:12px}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;display:grid}.category-card{border:1px solid var(--line);background:#fdfefb;border-radius:15px;grid-template-columns:32px minmax(0,1fr) 125px 15px;align-items:center;gap:15px;min-height:124px;padding:21px 19px;display:grid;position:relative}.category-card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 15px #24311909}.category-number{color:var(--accent);align-self:start;padding-top:3px;font-family:Anton,sans-serif;font-size:29px;line-height:1}.category-copy h3{letter-spacing:-.025em;margin-bottom:5px;font-size:17px;line-height:1.35}.category-copy p{color:var(--muted);max-width:32em;font-size:13px;line-height:1.6}.category-meta{color:var(--muted);align-items:center;gap:6px;margin-top:8px;font-size:11px;line-height:1.5;display:flex}.category-form{background:var(--tint);border-radius:9px;flex-wrap:wrap;justify-content:center;align-items:center;gap:4px 5px;padding:10px 8px;font-size:12px;line-height:1.6;display:flex}.category-form strong{color:var(--accent);font-weight:700}.category-arrow{color:var(--muted)}.category-card:hover .category-arrow{color:var(--accent)}.progress-strip{background:#eff3e7;border-radius:12px;justify-content:space-between;align-items:center;gap:20px;margin:0 0 25px;padding:14px 20px;font-size:12px;display:flex}.progress-strip>div{align-items:center;gap:8px;display:flex}.progress-strip>div>svg{color:#607e37}.challenge-strip{background:#edf0e6;border:1px solid #e3e8da;border-radius:17px;align-items:center;gap:20px;margin:38px 0 54px;padding:25px 26px;display:flex}.strip-icon{background:var(--lime);color:#475b11;border-radius:14px;padding:14px}.challenge-strip h2{letter-spacing:-.025em;font-size:17px;line-height:1.45}.challenge-strip p{color:var(--muted);margin-top:5px;font-size:10px}.challenge-strip .button{flex-shrink:0;margin-left:auto;font-size:11px}.site-footer{border-top:1px solid var(--line);max-width:1184px;color:var(--muted);justify-content:space-between;align-items:center;gap:22px;margin:0 auto;padding:26px 0 32px;font-size:10px;display:flex}.site-footer>div{align-items:center;gap:15px;display:flex}.footer-wordmark{letter-spacing:.025em;color:var(--ink);font-family:Inter Variable,sans-serif;font-size:17px;font-weight:850}.site-footer nav{flex-wrap:wrap;gap:22px;display:flex}.site-footer nav a{align-items:center;gap:4px;display:flex}.site-footer a:hover{color:var(--blue)}.narrow{max-width:790px;margin:0 auto;padding:35px 0 64px}.back-link{color:var(--muted);border:1px solid var(--line);border-radius:50%;justify-content:center;width:36px;height:36px;margin-bottom:20px}.back-link svg{width:17px}.category-heading{align-items:flex-start;gap:29px;margin-bottom:26px;display:flex}.large-category-number{color:var(--accent);padding-top:3px;font-family:Anton,sans-serif;font-size:76px;line-height:1.1}.category-heading .eyebrow{margin-bottom:8px}.category-heading h1{font-size:37px}.category-heading .lede{margin-top:10px;font-size:14px}.category-demo{background:var(--tint);border-radius:17px;justify-content:center;align-items:center;gap:28px;margin-bottom:25px;padding:28px;font-size:33px;display:flex}.category-demo strong{color:var(--accent)}.category-page>.small-muted{margin:14px 0 32px}.lesson-overview h2{margin-bottom:20px;font-size:23px}.exercise-grid{grid-template-columns:1fr 1fr;gap:10px;display:grid}.exercise-tile{border:1px solid var(--line);background:#fff;border-radius:11px;flex-wrap:wrap;align-items:center;gap:12px;min-height:89px;padding:16px;display:flex}.exercise-order{color:#899178;font-family:Anton,sans-serif;font-size:16px}.exercise-tile>span[lang]{font-size:17px;font-weight:600}.exercise-target{width:100%;color:var(--muted);padding-left:27px;font-size:10px;line-height:1.5}.exercise-tile.mastered{background:#f5f9eb;border-color:#b4cc85}.exercise-tile>svg{color:#78992f;margin-left:auto}.grammar-links{border-top:1px solid var(--line);margin-top:22px;padding-top:19px}.grammar-title{align-items:center;gap:8px;margin-bottom:11px;font-size:12px;font-weight:650;display:flex}.grammar-chips{flex-wrap:wrap;gap:8px;display:flex}.grammar-chips a{border:1px solid var(--line);background:#fff;border-radius:8px;align-items:center;gap:9px;padding:8px 10px;font-size:11px;line-height:1.5;display:flex}.grammar-chips a:hover{background:#f4f9e8;border-color:#adc28b}.grammar-links>.small-muted{margin-top:11px;font-size:10px}.intro-layout{grid-template-columns:1fr 200px;align-items:center;gap:22px;display:grid}.challenge-intro h1{font-size:42px;line-height:1.2}.intro-fox{object-fit:contain;width:200px;height:200px}.challenge-format{align-items:center;gap:17px;margin:30px 0;display:flex}.challenge-format>div{border:1px solid var(--line);background:#fff;border-radius:16px;flex:1;align-items:center;gap:18px;padding:19px 23px;display:flex}.challenge-format>div:first-child{background:#edf3db;border-color:#e0e8ca}.challenge-format strong{font-family:Anton,sans-serif;font-size:36px;font-weight:400}.challenge-format span{font-size:14px}.format-plus{color:#8c957d}.field-label{margin-bottom:10px;font-size:12px;font-weight:650;display:block}.category-select{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:12px;padding:15px;font-size:14px}.intro-start{width:100%;margin:20px 0 12px}.challenge-intro>.small-muted{text-align:center}.notice{background:#fff1cf;border:1px solid #ead797;border-radius:12px;margin:18px 0;padding:15px 20px;font-size:13px}.result-stage{background:#edf3dc;border:1px solid #e2e8d3;border-radius:23px;min-height:322px;padding:33px 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