:root{--paper:#fbfaf6;--ink:#273d35;--muted:#718078;--green:#2b5945;--line:#e0e4dc;--soft:#edf2e9;--accent:#e9a67f;--white:#fff;color:var(--ink);background:var(--paper);font-synthesis:none;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;font-size:15px;line-height:1.9}a{color:inherit;text-underline-offset:4px;text-decoration-thickness:1px}button,input,textarea,select{font:inherit}button,a,input,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline-offset:4px;outline:3px solid #b4c9a8}h1,h2,h3,p{margin-top:0}h1,h2,h3{letter-spacing:.01em;line-height:1.6}h1{font-size:clamp(30px,4.4vw,48px);font-weight:750}h2{font-size:clamp(23px,3vw,32px)}h3{font-size:20px}p{color:#52635a}h1 a,h2 a,h3 a{text-decoration:none}.container{width:min(1120px,100% - 64px);margin-inline:auto}.narrow{max-width:800px}.site-header{border-bottom:1px solid var(--line);background:#fbfaf6f5;height:91px}.nav-wrap{justify-content:space-between;align-items:center;gap:32px;width:min(1280px,100% - 64px);height:100%;margin:auto;display:flex}.brand{letter-spacing:-1px;align-items:center;gap:9px;font-family:system-ui,sans-serif;font-size:28px;font-weight:750;line-height:1;text-decoration:none;display:inline-flex}.brand-mark{background:var(--green);color:#fff;border-radius:13px 13px 13px 4px;justify-content:center;align-items:center;width:35px;height:35px;font:italic 800 31px Georgia,serif;display:inline-flex}.beta{letter-spacing:0;align-self:start;margin-top:3px;font-size:11px;font-weight:400}.site-header nav{gap:28px;font-size:13px;display:flex}.site-header nav a,.nav-account{text-decoration:none}.nav-account{border:1px solid var(--line);white-space:nowrap;border-radius:24px;padding:7px 17px;font-size:13px}.eyebrow{letter-spacing:2px;color:#6f8372;margin-bottom:20px;font:600 11px/1.5 system-ui,sans-serif;display:block}.little-star{color:#c88e65;margin-right:6px;font-size:16px}.button-row{flex-wrap:wrap;align-items:center;gap:20px;display:flex}.button{border:1px solid #0000;border-radius:7px;justify-content:center;align-items:center;gap:22px;min-height:48px;padding:15px 24px;font-size:14px;font-weight:650;line-height:1.5;text-decoration:none;display:inline-flex}.primary{background:var(--green);color:#fff}.primary:hover{background:#1d4333}.secondary{color:var(--green);background:0 0;border-color:#b9c5b5}.large{min-height:59px;padding:19px 26px}.text-link{color:var(--green);font-size:13px;font-weight:650;text-decoration:none}.text-link:hover{text-decoration:underline}.home-hero{grid-template-columns:1.15fr 1fr;align-items:center;gap:80px;padding-block:82px 80px;display:grid}.hero-copy h1{letter-spacing:.035em;margin-bottom:30px;font-size:clamp(40px,5.3vw,63px);line-height:1.55}.accent-underline{background:linear-gradient(#0000 83%,#f3d5bb 83% 94%,#0000 94%)}.hero-lead{margin-bottom:34px;font-size:16px;line-height:2.2}.hero-copy .button-row{gap:20px}.hero-note{color:#819084;margin:17px 0 0;font-size:11px}.hero-demo{background:#fff;border:1px solid #dee3d9;border-radius:17px;padding:24px;transform:rotate(1deg);box-shadow:12px 18px #e9eee4}.demo-top{border-bottom:1px solid #e8eae4;align-items:center;gap:12px;margin-bottom:24px;padding-bottom:18px;display:flex}.demo-icon{text-align:center;color:#52704d;background:#e3eadc;border-radius:50%;width:40px;height:40px;font:italic 700 30px/40px Georgia}.demo-top strong{font-size:12px;display:block}.demo-top div span{color:var(--muted);font-size:10px;display:block}.demo-badge{border:1px solid var(--line);white-space:nowrap;border-radius:4px;margin-left:auto;padding:1px 6px;font-size:9px}.demo-bubble{background:#f2f4ed;border-radius:2px 12px 12px;max-width:88%;padding:18px 21px}.demo-bubble p,.demo-reply p{color:var(--ink);margin:5px 0 10px;font-family:system-ui,sans-serif;font-size:20px;line-height:1.55}.demo-bubble>span:last-child,.demo-reply>span{color:#849083;font-size:10px}.demo-reply{background:#eaf1e7;border-radius:12px 2px 12px 12px;max-width:84%;margin:18px 0 20px auto;padding:16px 20px}.demo-hint{background:#fbf6ec;border-radius:7px;gap:12px;padding:13px;font-size:11px;display:flex}.demo-hint>span{color:#c28a4c;font-size:19px}.demo-hint p{margin:1px 0 0;font-size:10px}.demo-start{border-top:1px solid var(--line);justify-content:space-between;margin-top:20px;padding-top:18px;font-size:11px;font-weight:700;text-decoration:none;display:flex}.feature-strip{border-block:1px solid var(--line)}.feature-strip>.container{color:#6b7e6c;justify-content:center;gap:75px;padding-block:19px;font-size:12px;display:flex}.home-section{padding-block:76px}.section-heading{justify-content:space-between;align-items:center;gap:24px;margin-bottom:28px;display:flex}.section-heading .eyebrow{margin-bottom:12px}.section-heading h2{margin:0}.practice-options{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}.option-card{border-radius:11px;flex-direction:column;align-items:flex-start;min-height:320px;padding:26px 27px;display:flex;position:relative}.peach{background:#f5e8dd}.sage{background:#e7ede1}.lavender{background:#ece9f0}.option-visual{color:#9c7258;align-self:flex-end;min-height:75px;font:italic 600 49px/1 Georgia,serif;transform:rotate(-8deg)}.sage .option-visual{color:#687d60}.lavender .option-visual{color:#90819c}.tag{color:#687b65;letter-spacing:.04em;font-size:10px;line-height:1.8;display:inline-block}.option-card h3{margin:10px 0 13px;font-size:20px}.option-card p{font-size:12px;line-height:2}.option-card .text-link{margin-top:auto;padding-top:15px}.soft-section{border-block:1px solid var(--line);background:#f0f2ea}.split-section{grid-template-columns:1fr 1fr;align-items:center;gap:100px;padding-block:70px;display:grid}.split-section p{font-size:13px;line-height:2.2}.learning-path{margin:0;padding:0;list-style:none}.learning-path li{border-bottom:1px solid #dce3d5;gap:24px;padding:21px 0;display:flex}.learning-path li:last-child{border:0}.learning-path li>span{color:#9bae8f;font:italic 24px Georgia}.learning-path h3{margin:0 0 7px;font-size:15px}.learning-path p{margin:0;font-size:11px}.card-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.editorial-card{border-top:1px solid #bfcabb;padding-top:20px}.editorial-card>span{color:#82917e;font-size:10px}.editorial-card h3{margin:18px 0 12px;font-size:17px}.editorial-card p{font-size:12px}.home-faq{max-width:850px;padding-block:15px 80px}.home-faq h2{margin-bottom:26px;font-size:26px}.home-faq details,.article details{border-bottom:1px solid var(--line);padding:20px 0}.home-faq summary,summary{cursor:pointer;font-size:14px;font-weight:650}.home-faq details p{padding-top:14px;font-size:13px}.closing-cta{text-align:center;background:#e8eee2;padding:66px 24px 76px}.closing-cta .eyebrow{margin-bottom:15px}.closing-cta h2{margin-bottom:26px;font-size:33px}.closing-cta p{margin:20px 0 0;font-size:11px}.site-footer{border-top:1px solid var(--line);background:#f7f7f1;padding-block:60px 22px}.footer-grid{grid-template-columns:1.7fr 1fr 1fr;gap:50px;display:grid}.footer-grid .brand{font-size:25px}.footer-grid>div p{margin:20px 0 5px;font-size:12px}.footer-grid nav{flex-direction:column;gap:10px;display:flex}.footer-grid h2{margin-bottom:7px;font-size:12px}.footer-grid nav a{color:#71806f;font-size:11px;text-decoration:none}.footer-bottom{border-top:1px solid var(--line);color:#889181;justify-content:space-between;margin-top:40px;padding-top:20px;font:10px system-ui;display:flex}.microcopy{color:#7c887d;font-size:11px;line-height:1.9}.skip-link{z-index:10;background:#fff;padding:12px;position:absolute;top:-100px;left:20px}.skip-link:focus{top:5px}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.page-intro{max-width:800px;padding:58px 0 36px}.page-intro h1{margin-bottom:19px}.page-intro p{font-size:15px;line-height:2}.page-intro .eyebrow{margin-bottom:13px}.article-wrap{grid-template-columns:minmax(0,760px) 240px;gap:72px;padding-bottom:70px;display:grid}.article section{border-top:1px solid var(--line);padding-block:32px 14px;scroll-margin-top:24px}.article h2{margin-bottom:19px;font-size:24px}.article p,.article li{font-size:14px;line-height:2.05}.article ul{padding-left:22px}.article section a,.article p a{text-decoration:underline}.section-links{flex-wrap:wrap;gap:12px;margin:24px 0 10px;display:flex}.section-links a{color:var(--green);font-size:13px}.article-aside{padding-top:10px}.article-aside nav{background:#f1f3ec;border-radius:8px;flex-direction:column;gap:12px;padding:25px;font-size:12px;display:flex}.article-aside nav h2{font-size:13px}.article-aside nav a{text-decoration:none}.source-list{color:var(--muted);font-size:11px}.source-list h2{font-size:17px}.content-card{border:1px solid var(--line);background:#fff;border-radius:9px;padding:26px}.content-card h2{margin:15px 0;font-size:19px}.content-card p{font-size:12px}.card-number{color:#9cae91;margin-bottom:20px;font:italic 23px Georgia;display:block}.inline-note{border-top:1px solid var(--line);margin-top:35px;padding:32px 0 60px}.inline-note h2{font-size:22px}.full{width:100%}.panel{border:1px solid var(--line);background:#fff;border-radius:9px;margin-bottom:18px;padding:24px}.panel h2{margin-bottom:14px;font-size:16px}.panel p{font-size:12px}.panel.muted{background:#f0f3e9}.back-link{color:var(--muted);margin-top:35px;font-size:12px;text-decoration:none;display:inline-block}.practice-shell{max-width:1110px;margin:auto;padding:30px 32px 70px}.practice-top{color:var(--muted);justify-content:space-between;font-size:11px;display:flex}.practice-top a{text-decoration:none}.practice-heading{padding:30px 0 15px}.practice-heading .eyebrow{margin:0 0 9px}.practice-heading h1{margin:0 0 7px;font-size:29px}.practice-heading p{font-size:12px}.practice-grid{grid-template-columns:minmax(0,710px) 270px;gap:24px;display:grid}.conversation-card{border:1px solid var(--line);background:#fff;border-radius:11px;padding:24px}.conversation-bar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;margin-bottom:25px;padding-bottom:19px;font-size:11px;display:flex}.status-dot{background:#8bb074;border-radius:50%;width:7px;height:7px;margin-right:6px;display:inline-block}.check{align-items:center;gap:7px;font-size:11px;display:flex}.check input{flex-shrink:0;width:15px;height:15px;margin:0}.message{background:#f1f4ed;border-radius:3px 12px 12px;max-width:90%;margin-bottom:18px;padding:15px 20px}.message.user{background:#e7efdf;border-radius:12px 3px 12px 12px;margin-left:auto}.message-label{color:#7b8a76;font-size:10px}.message p[lang=en]{color:var(--ink);margin:5px 0 10px;font-family:system-ui,sans-serif;font-size:19px;line-height:1.6}.message-actions{flex-wrap:wrap;gap:15px;display:flex}.text-button{min-height:32px;color:var(--green);text-align:left;background:0 0;border:0;padding:4px 0;font-size:11px}.text-button:hover{text-decoration:underline}.message .translation{border-top:1px solid #dce4d5;margin-top:12px;padding-top:12px;font-size:12px}.composer{border-top:1px solid var(--line);margin-top:25px;padding-top:18px}.composer textarea,input,textarea{background:var(--paper);color:var(--ink);border:1px solid #cbd6c4;border-radius:7px;width:100%;max-width:100%;padding:12px 14px}.composer textarea{resize:vertical;min-height:90px;margin:14px 0 13px;font-size:16px;display:block}.composer-buttons{justify-content:space-between;gap:12px;display:flex}.mic-button{color:var(--green);background:#f5f7f0;border:1px solid #b8c7ad;border-radius:6px;min-height:46px;padding:11px 18px;font-size:12px}.mic-button.recording{color:#a7472c;background:#f9e5df;border-color:#daa290}.hint{background:#fff8e9;border:1px solid #eee1c5;border-radius:7px;padding:13px 16px}.hint p{margin:0;font-size:12px}.hint p[lang=en]{margin-bottom:5px;font-size:17px}.working{color:var(--muted);font-size:12px}.notice{background:#edf2e5;border-radius:6px;margin-block:15px;padding:14px 17px;font-size:12px}.notice.error{color:#90533e;background:#faeee7}.notice a{margin-top:8px;display:block}.goal-list{padding:0;font-size:12px;list-style:none}.goal-list li{gap:9px;margin-block:9px;display:flex}.goal-list span{color:#71905f}.feedback-card{background:#fff;border:1px solid #cfdbc7;border-radius:11px;margin-block:28px;padding:34px}.feedback-card h2{font-size:27px}.feedback-card p{font-size:14px}.positive-note{background:#eef4e8;border-radius:7px;margin-bottom:25px;padding:20px}.positive-note h3{margin-bottom:9px;font-size:14px}.positive-note p{margin:0}.improvement{border-block:1px solid var(--line);padding:20px 0}.improvement span{color:var(--muted);font-size:11px;display:block}.improvement strong,.improvement q{font-family:system-ui,sans-serif;font-size:18px}.account-shell{max-width:580px;padding-block:55px}.account-shell h1{font-size:28px}.account-shell form label{margin-top:18px;font-size:12px;font-weight:650;display:block}.account-shell form .check{align-items:flex-start;margin-bottom:23px;font-weight:400;display:flex}.account-shell input{min-height:44px;margin-top:8px;font-size:16px;display:block}.tabs{border-bottom:1px solid var(--line);margin-top:24px;display:flex}.tabs button{color:var(--muted);background:0 0;border:0;border-bottom:2px solid #0000;padding:13px 20px;font-size:13px}.tabs button[aria-pressed=true]{border-color:var(--green);color:var(--green)}.danger{color:#a34b36}.history-list{margin-bottom:55px}.history-item{border-bottom:1px solid var(--line);justify-content:space-between;gap:30px;padding:24px;display:flex}.history-item h2{margin:9px 0 3px;font-size:19px}.history-item p{margin:0;font-size:12px}.course-shell{max-width:900px;padding-bottom:60px}.course-steps{grid-template-columns:repeat(5,1fr);gap:9px;margin-bottom:28px;display:grid}.course-steps button{border:1px solid var(--line);background:0 0;border-radius:7px;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:12px 6px;font-size:11px;display:flex}.course-steps button span{font-family:system-ui;font-size:14px}.course-steps button.active{background:var(--green);color:#fff;border-color:var(--green)}.exercise-card{border:1px solid var(--line);background:#fff;border-radius:10px;min-height:430px;padding:32px}.exercise-top{color:var(--muted);justify-content:space-between;font-size:11px;display:flex}.progress-track{background:#edf0e8;border-radius:5px;height:4px;margin:14px 0 30px}.progress-track>span{background:#9bae8b;border-radius:5px;height:100%;transition:width .2s;display:block}.exercise-card h2{font-size:22px}.english-prompt{color:var(--ink);margin:25px 0 16px;font-family:system-ui,sans-serif;font-size:30px!important}.listen-button{color:var(--green);background:#e9efdf;border:1px solid #c7d4bc;border-radius:6px;margin:10px 0 20px;padding:15px 22px;font-size:14px}.choice-list{grid-template-columns:1fr 1fr;gap:10px;margin-block:16px;display:grid}.choice-list button{border:1px solid var(--line);background:var(--paper);text-align:left;color:var(--ink);border-radius:6px;padding:15px 12px;font-size:14px}.choice-list button:hover{border-color:var(--green)}.word-bank{flex-wrap:wrap;gap:9px;margin:22px 0 10px;display:flex}.word-bank button{background:var(--paper);color:var(--ink);border:1px solid #ccd6c5;border-radius:6px;padding:9px 14px;font:16px system-ui}.pair-list>div{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:10px 0;display:flex}.pair-list dd{font-size:12px}.exercise-footer{border-top:1px solid var(--line);justify-content:space-between;margin-top:35px;padding-top:20px;display:flex}.topic-grid{grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:35px;display:grid}.topic-card{border:1px solid var(--line);background:#fff;border-radius:8px;padding:23px}.topic-card h2{font-size:18px}.topic-card p[lang=en]{color:var(--ink);font:18px/1.6 system-ui}.scenario-prep{grid-template-columns:1fr 1fr;gap:36px;margin-bottom:35px;display:grid}.scenario-prep .panel h2{font-size:21px}.scenario-prep .panel ul{padding-left:20px;font-size:13px}.phrase-table{border-collapse:collapse;width:100%;font-size:13px}.phrase-table td{border-bottom:1px solid var(--line);vertical-align:top;padding:12px 10px}.phrase-table td:first-child{font:16px/1.7 system-ui}.comparison-table{border-collapse:collapse;width:100%;margin-block:20px;font-size:12px}.comparison-table th,.comparison-table td{text-align:left;border-bottom:1px solid var(--line);min-width:120px;padding:15px 13px}.table-scroll{overflow:auto}.price-card{background:#edf2e6;border:1px solid #bdcdb3;border-radius:11px;margin-bottom:34px;padding:30px}.price-card h2{font-size:20px}.price{letter-spacing:-1px;color:var(--green);font:600 46px/1.6 system-ui}.price span{letter-spacing:0;font-size:15px}.price-card>p{font-size:13px}.breadcrumbs{color:var(--muted);gap:8px;padding-top:28px;font-size:10px;display:flex}.breadcrumbs a{text-decoration:none}#content:focus{outline:none}@media (max-width:1000px){.site-header nav{gap:17px;font-size:12px}.home-hero{gap:40px}.hero-copy .button-row{gap:15px}.hero-copy .large{padding:17px 19px;font-size:12px}.feature-strip>.container{gap:35px}.article-wrap{grid-template-columns:minmax(0,1fr) 210px;gap:35px}.practice-grid{grid-template-columns:minmax(0,1fr) 240px}.split-section{gap:50px}.option-card{padding:23px}.option-card h3{font-size:18px}}@media (max-width:760px){.container,.nav-wrap{width:calc(100% - 36px)}.site-header{height:73px}.nav-wrap{gap:12px}.brand{font-size:25px}.brand-mark{width:31px;height:31px;font-size:28px}.site-header nav{display:none}.nav-account{padding:6px 11px;font-size:11px}.home-hero{grid-template-columns:1fr;gap:40px;padding-block:43px 45px}.hero-copy h1{margin-bottom:21px;font-size:43px;line-height:1.5}.hero-lead{margin-bottom:25px;font-size:14px;line-height:2.1}.hero-copy .eyebrow{letter-spacing:1.2px;margin-bottom:21px;font-size:10px}.hero-note{font-size:10px}.hero-demo{width:min(430px,100% - 9px);margin:auto;padding:21px;transform:rotate(.7deg);box-shadow:8px 11px #e9eee4}.feature-strip>.container{flex-wrap:wrap;justify-content:space-between;gap:8px;padding-block:16px;font-size:9px}.feature-strip>.container span:last-child{display:none}.home-section{padding-block:45px}.section-heading{flex-direction:column;align-items:flex-start;gap:13px;margin-bottom:22px}.section-heading h2{font-size:25px}.section-heading .eyebrow{font-size:9px}.practice-options{grid-template-columns:1fr;gap:15px}.option-card{min-height:240px;padding:23px;display:block}.option-visual{float:right;min-height:50px;margin-top:15px;font-size:39px}.option-card h3{margin-top:13px;font-size:21px}.option-card p{max-width:85%;font-size:13px}.option-card .text-link{margin-top:14px;padding:0;display:block}.split-section{grid-template-columns:1fr;gap:20px;padding-block:43px}.split-section h2{font-size:27px}.learning-path li{padding-block:17px}.card-grid,.topic-grid{grid-template-columns:1fr}.editorial-card{margin-bottom:13px}.editorial-card h3{font-size:20px}.editorial-card p{font-size:13px}.home-faq{padding-block:15px 45px}.home-faq h2{font-size:24px}.home-faq summary{font-size:13px}.closing-cta{padding-block:45px 48px}.closing-cta h2{font-size:28px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}.footer-grid>div{grid-column:1/-1}.footer-grid nav a{font-size:12px}.site-footer{padding-block:35px 20px}.footer-grid>div p{margin-top:15px}.footer-bottom{gap:10px;font-size:9px}.page-intro{padding:35px 0 25px}.page-intro h1{font-size:30px}.page-intro p{font-size:13px}.article-wrap{padding-bottom:40px;display:block}.article-aside{display:none}.article h2{font-size:23px}.article p,.article li{font-size:13px}.article section{padding-top:25px}.practice-shell{padding:20px 14px 40px}.practice-heading{padding:26px 4px 12px}.practice-heading h1{font-size:26px}.practice-grid{flex-direction:column;gap:20px;display:flex}.conversation-card{padding:15px 13px}.message{max-width:95%;padding:14px 15px}.message p[lang=en]{font-size:19px}.conversation-bar{padding:0 1px 16px;font-size:10px}.practice-aside{grid-template-columns:1fr;gap:0;display:grid}.practice-aside .panel{padding:20px}.practice-aside .panel p{font-size:13px}.composer textarea{font-size:16px}.mic-button{padding-inline:13px;font-size:12px}.composer-buttons .button{padding-inline:20px}.feedback-card{padding:24px 19px}.feedback-card .eyebrow{font-size:9px}.feedback-card h2{font-size:25px}.feedback-card p{font-size:13px}.account-shell{padding-top:30px}.account-shell .panel{padding:22px 18px}.account-shell h1{font-size:25px}.course-steps{gap:5px}.course-steps button{padding:9px 3px;font-size:9px}.exercise-card{padding:23px 17px}.exercise-card h2{font-size:20px}.choice-list{grid-template-columns:1fr}.english-prompt{font-size:25px!important}.course-shell .page-intro{padding-top:25px}.scenario-prep{grid-template-columns:1fr;gap:0}.topic-grid{gap:13px}.history-item{padding:20px 0}.check{font-size:10px}.button-row,.footer-grid nav{gap:13px}.back-link{margin-top:25px}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}#content>main{min-height:45vh}.account-shell form label textarea{margin-top:8px;font-size:16px;display:block}.account-shell form .check input{width:15px;height:15px;min-height:0;margin-top:3px;display:inline-block}.article-aside ol{padding-left:18px;font-size:12px}.source-list a,.comparison-table td,.phrase-table td{overflow-wrap:anywhere}.feedback-card .button-row{margin-top:23px}form label{display:block}textarea{resize:vertical}
