@import"https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&family=Manrope:wght@400;500;600;700;800&display=swap";:root{font-family:DM Sans,sans-serif;color:#1b2a3a;background:#f7f9fc;font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}.shell{display:flex;min-height:100vh}.sidebar{width:260px;flex-shrink:0;background:#142437;color:#eaf2fb;padding:31px 18px;display:flex;flex-direction:column;min-height:100vh;position:sticky;top:0;height:100vh}.brand{display:flex;align-items:center;gap:12px;padding:0 12px 48px;font:800 22px Manrope,sans-serif;letter-spacing:-1px}.brand span:not(.brand-symbol){color:#5ce5c0}.brand small{display:block;font:700 8px DM Sans;letter-spacing:1.65px;color:#98adbd;margin-top:4px}.brand-symbol{width:42px;height:42px;border-radius:12px;background:#1f9e8c;color:#fff;display:grid;place-items:center}.menu-caption{font-size:10px;font-weight:800;letter-spacing:1.5px;color:#7892a4;margin:0 16px 15px}.nav-item{width:100%;background:none;border:0;color:#acbfcf;display:flex;gap:13px;align-items:center;text-align:left;padding:14px 16px;border-radius:10px;font-weight:700;font-size:14px;margin-bottom:5px}.nav-item.active,.nav-item:hover{background:#25384c;color:#fff}.side-bottom{margin-top:auto}.side-tip{padding:17px;border-radius:12px;background:#1d3448;color:#dfeef5}.side-tip>svg{color:#66e3c4}.side-tip strong{display:block;margin:12px 0 6px;font-size:14px}.side-tip p{font-size:12px;line-height:1.65;color:#a8becd;margin:0}.sidebar-foot{font-size:10px;text-align:center;color:#708697;margin-top:22px}.main{flex:1;min-width:0}.topbar{height:76px;background:#fff;border-bottom:1px solid #e8edf2;display:flex;align-items:center;justify-content:flex-end;padding:0 56px;gap:24px}.tagline{font-size:13px;color:#80909e}.avatar{height:35px;width:35px;border-radius:50%;background:#e9f7f2;color:#187869;display:grid;place-items:center;font-weight:800}.mobile-brand{display:none}.content{max-width:1260px;margin:0 auto;padding:42px 54px 80px}.hero{border-radius:20px;background:#173149;color:#fff;padding:48px 55px;position:relative;overflow:hidden;min-height:310px}.eyebrow{font-size:10px;color:#0d997f;font-weight:800;letter-spacing:2px;display:flex;align-items:center;gap:10px}.hero .eyebrow{color:#80e9c6}.dot{height:7px;width:7px;border-radius:50%;background:#60e2b7}.hero h1{font:800 42px/1.19 Manrope,sans-serif;letter-spacing:-2px;margin:20px 0 12px}.hero h1 em{font-style:normal;color:#6feac4}.hero p{font-size:14px;line-height:1.75;color:#c5d6e3;max-width:515px;margin:0 0 24px}.btn{border:0;border-radius:10px;padding:13px 18px;font-size:13px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:9px}.btn.primary{background:#1fc69f;color:#10382f}.btn.primary:hover{background:#64e1bd}.btn.outline{background:#fff;color:#1a3d4d;border:1px solid #d9e4eb}.hero-circles{position:absolute;right:63px;top:65px;width:200px;height:200px;border:1px solid #35536a;border-radius:50%;display:grid;place-items:center;color:#68a0ae;box-shadow:0 0 0 42px #1c394f,0 0 0 43px #34556c}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:43px 0 21px}.section-heading h2{font:800 22px Manrope;margin:0 0 6px;letter-spacing:-.6px}.section-heading p{margin:0;color:#8191a0;font-size:13px}.count-pill,.level{padding:7px 11px;border-radius:20px;background:#e6f6f0;color:#19856b;font-size:11px;font-weight:800}.empty{border:1px dashed #d6e2ea;background:#fff;min-height:300px;border-radius:16px;text-align:center;padding:44px 20px}.empty-icon{width:60px;height:60px;background:#eaf8f4;color:#229c83;border-radius:16px;display:grid;place-items:center;margin:auto}.empty h3{font:800 18px Manrope;margin:20px 0 8px}.empty p{max-width:410px;margin:0 auto 20px;color:#8593a0;font-size:13px;line-height:1.65}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.lesson-card{border:1px solid #e4eaf0;background:#fff;padding:23px;text-align:left;border-radius:16px;transition:.15s;min-height:204px}.lesson-card:hover{border-color:#54c8aa;transform:translateY(-2px)}.card-top{display:flex;justify-content:space-between}.lesson-icon{color:#218e7d;background:#eaf8f3;padding:11px;border-radius:11px}.lesson-card h3{font:800 17px Manrope;letter-spacing:-.3px;margin:19px 0 6px}.lesson-card p{font-size:12px;color:#8b99a4;margin:0}.card-bottom{display:flex;align-items:center;justify-content:space-between;color:#328e7c;font-size:11px;font-weight:800;margin-top:28px}.footer-note{display:flex;align-items:center;gap:9px;color:#8595a2;font-size:11px;margin-top:26px}.notice{margin:24px auto 0;max-width:1145px;border:1px solid #f3d9a4;background:#fff8e9;color:#755319;border-radius:10px;padding:13px 17px;display:flex;gap:11px;align-items:center;font-size:13px}.notice button{margin-left:auto;background:none;border:0;color:inherit}.content.narrow{max-width:1120px}.back{display:inline-flex;align-items:center;gap:8px;background:none;border:0;color:#708394;font-size:12px;font-weight:800;padding:0;margin-bottom:24px}.page-head h1,.study-title h1{font:800 32px Manrope;letter-spacing:-1.25px;margin:11px 0 7px}.page-head p,.study-title p{font-size:13px;color:#81909e;margin:0 0 27px}.form-card,.transcript-card,.progress-card,.source-card{background:#fff;border:1px solid #e3e9ee;border-radius:15px}.form-card{padding:0 32px}.form-section{padding:28px 0;border-bottom:1px solid #edf1f5}.form-section h3{display:flex;align-items:center;gap:12px;font:800 15px Manrope;margin:0 0 24px}.form-section h3 span{background:#eaf8f4;color:#169c81;border-radius:8px;padding:8px;font-size:11px}.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:20px}.form-card label{display:flex;flex-direction:column;font-size:12px;font-weight:800;gap:9px;color:#4b5f6d;margin-bottom:20px}.form-card input:not([type=file]),.form-card textarea,.form-card select{width:100%;padding:12px 13px;border:1px solid #dbe5eb;background:#fbfcfd;border-radius:9px;font-size:13px;color:#233447;outline:none}.form-card input:focus,.form-card textarea:focus{border-color:#36b696}.form-card textarea{resize:vertical;line-height:1.65}.upload-box{display:flex!important;align-items:center;justify-content:center;border:1px dashed #a4cfc3;border-radius:12px;min-height:140px;background:#f8fffc;cursor:pointer;color:#248f78!important}.upload-box small{color:#8c9da7;font-weight:400}.upload-box input{display:none}.field-help{color:#8c9ba7;font-size:12px;line-height:1.7;margin:0}.form-actions{padding:25px 0;display:flex;justify-content:flex-end;gap:12px}.study{max-width:1370px}.study-title{display:flex;justify-content:space-between;align-items:center}.lesson-mark{height:58px;width:58px;background:#e8f7f2;color:#229c82;display:grid;place-items:center;border-radius:14px}.study-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:25px;align-items:start}.study-left{min-width:0}.player{background:#173149;color:#fff;border-radius:17px;padding:24px 30px;text-align:center}.player-label{display:flex;align-items:center;gap:8px;font-size:10px;letter-spacing:1.4px;font-weight:800;color:#b5d4de;text-align:left}.player-label span{margin-left:auto;color:#65deb7}.play-circle{margin:24px auto 18px;background:#3bd1a8;color:#12372f;height:78px;width:78px;border-radius:50%;display:grid;place-items:center;cursor:pointer}.play-circle.disabled-player{opacity:.4;cursor:not-allowed}.audio-timeline{display:flex;align-items:center;gap:13px;color:#b3cfda;font-size:11px}.audio-timeline input{flex:1;accent-color:#3bd1a8}.player-controls{display:flex;gap:15px;align-items:center;justify-content:center;margin-top:18px}.subtle-btn{background:none;border:0;color:#718b9b;font-size:12px;font-weight:700;display:inline-flex;align-items:center;gap:6px}.player .subtle-btn{color:#b4cfda}.subtle-btn.on{color:#47d9b2}.transcript-card{margin-top:22px;padding:26px 27px}.transcript-head,.transcript-head>div{display:flex;justify-content:space-between;align-items:center;gap:9px}.transcript-head svg{color:#289b85}.transcript-head h2{font:800 17px Manrope;margin:0}.sentence{width:100%;background:none;border:0;border-bottom:1px solid #edf1f4;padding:21px 3px;display:flex;gap:15px;text-align:left;border-radius:5px}.sentence:hover,.sentence.highlight{background:#f1fbf7}.sentence-num{font-size:11px;font-weight:800;color:#a5b3bd;margin-top:2px}.sentence strong{font-size:14px;line-height:1.65;color:#263a49;font-weight:700}.sentence p{color:#6b9095;font-size:13px;margin:7px 0 0;line-height:1.6}.transcript-foot{font-size:11px;color:#9babb5;margin:17px 0 0}.progress-card{padding:24px}.progress-top{display:flex;align-items:center;gap:9px;color:#199a7e;font-size:10px;letter-spacing:1px;font-weight:800}.progress-number{font:800 42px Manrope;margin-top:15px;letter-spacing:-2px}.progress-number small{font-size:18px;color:#b3c1cc}.progress-card>p{font-size:12px;color:#8093a0;margin:3px 0 20px;line-height:1.5}.progress-track{height:9px;background:#eaf1f4;border-radius:20px;overflow:hidden}.progress-track span{height:100%;background:#2dcca6;display:block;transition:width .2s}.progress-stats{display:flex;justify-content:space-between;color:#8297a3;font-size:10px;margin-top:9px}.goal-label{display:flex;justify-content:space-between;align-items:center;gap:9px;color:#667d8c;font-size:12px;font-weight:700;margin:30px 0 16px}.goal-label select{max-width:130px;border:1px solid #dce7eb;background:#fbfdfd;padding:7px;border-radius:7px;color:#344b58;font-size:11px}.tip{background:#f0f9f6;padding:13px;border-radius:10px;display:flex;gap:8px;color:#428b7d;font-size:11px;line-height:1.6}.tip svg{flex-shrink:0;margin-top:2px}.source-card{padding:23px;margin-top:18px}.source-card strong{display:flex;align-items:center;gap:9px;font-size:12px}.source-card p{font-size:12px;line-height:1.75;color:#8194a1;margin-bottom:0}@media(max-width:1200px){.hero-circles{right:10px;opacity:.4}.study-layout{grid-template-columns:1fr}.study-right{display:grid;grid-template-columns:1fr 1fr;gap:15px}.source-card{margin-top:0}}@media(max-width:860px){.sidebar{display:none}.topbar{padding:0 22px;justify-content:space-between}.mobile-brand{display:block;font:800 20px Manrope}.mobile-brand span{color:#199e82}.content{padding:28px 20px}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding:35px}.hero h1{font-size:35px}.hero-circles{display:none}}@media(max-width:600px){.topbar{height:60px}.tagline{display:none}.hero h1{font-size:30px}.hero{padding:27px}.lesson-grid,.two-cols,.study-right{grid-template-columns:1fr}.form-card{padding:0 18px}.transcript-card{padding:20px 16px}.player{padding:20px 15px}.study-title h1{font-size:25px}}.text-tabs{display:flex;gap:5px;flex-wrap:wrap;background:#f2f6f8;padding:5px;border-radius:10px;margin:22px 0 9px}.text-tabs button{flex:1;min-width:120px;border:0;border-radius:8px;padding:11px 10px;background:transparent;color:#687f8e;font-size:12px;font-weight:800}.text-tabs button.active{background:#fff;color:#158a73;box-shadow:0 1px 5px #153b4b18}.text-tabs button:focus-visible{outline:2px solid #169b83;outline-offset:2px}.paired-text{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;margin-top:16px;border:1px solid #e1eaef;border-radius:10px;overflow:hidden}.paired-text.english-only{grid-template-columns:1fr}.paired-head{background:#f4f8fa;font-weight:800;font-size:12px;color:#517889;padding:14px 15px;border-bottom:1px solid #e1eaef}.paired-head:nth-child(2){border-left:1px solid #e1eaef}.paired-cell{padding:15px;font-size:13px;line-height:1.75;border-bottom:1px solid #e9eff3;cursor:pointer;overflow-wrap:anywhere}.paired-cell:nth-child(2n){border-left:1px solid #e1eaef}.paired-cell.highlight{background:#f1fbf7}.paired-translation{color:#5e8791}.separate-text{display:flex;flex-direction:column;gap:23px;padding-top:12px}.separate-text section{border-bottom:1px solid #e9eff3;padding-bottom:18px}.separate-text section:last-child{border-bottom:0;padding-bottom:0}.separate-text h3{font:800 14px Manrope;margin:0 0 12px;color:#247b70}.separate-text p{font-size:14px;line-height:2;color:#304555;margin:0;white-space:normal}@media(max-width:600px){.text-tabs button{min-width:0;font-size:11px;padding:10px 5px}.paired-cell{padding:10px;font-size:12px}}.flash-help{display:flex;gap:9px;align-items:center;font-size:12px;color:#498b80;background:#f0faf7;padding:11px 13px;border-radius:9px;margin:16px 0}.flash-editor{background:#f8fffc;border:1px solid #a9dcd0;border-radius:12px;padding:18px;margin:12px 0}.flash-editor h3{display:flex;gap:8px;align-items:center;font-size:15px;margin:0 0 12px}.flash-editor label{display:block;color:#597381;font-size:12px;font-weight:700;margin:12px 0}.flash-editor input{display:block;border:1px solid #cfdfdf;border-radius:8px;padding:11px;width:100%;margin-top:7px}.flash-editor p{font-size:12px;color:#79919d}.flash-toolbar{display:flex;justify-content:space-between;align-items:center;gap:15px;background:#fff;border:1px solid #e5ecef;padding:17px;border-radius:12px;margin:20px 0;font-size:13px;color:#617c8c}.flash-toolbar label{display:flex;gap:7px;align-items:center}.review-wrap{max-width:760px;margin:28px auto;text-align:center}.review-count{color:#8496a1;font-size:12px;margin:16px}.review-card{cursor:pointer;background:#fff;border:1px solid #dfece8;box-shadow:0 4px 18px #163d4b0b;padding:45px 30px;border-radius:18px;min-height:270px;display:flex;flex-direction:column;justify-content:center;align-items:center}.review-card h2{font:800 27px Manrope;color:#173149;margin:21px 0}.review-card p{font-size:13px;color:#8798a3;line-height:1.7;margin:7px}.review-answer{font-size:19px;color:#118b70;font-weight:800;border-top:1px solid #edf2f5;padding-top:18px;width:100%}.review-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:16px}.separate-text p{display:inline;cursor:text}.flash-help-notice{background:#fff8e9;color:#8b621a;border:1px solid #f0dbab}.flash-help strong{font-weight:800}