:root{color-scheme:light dark;--color-primary:light-dark(#00A890, #ca7842);--color-secondary:light-dark(#3C4066, #a6aace);--color-highlight:light-dark(#f0a51c, #f0a51c);--color-lower:light-dark(#e7e4de, #1d1f1f);--color-panel:light-dark(#dcd7ce, #232525);--color-body:light-dark(#1e202b, #fff);--color-background:light-dark(#fff, #1e202b);--color-success:light-dark(#4caf50, #66bb6a);--color-error:light-dark(#f44336, #ef5350);--color-success-bg:light-dark(#4caf5020, #4caf5030);--color-error-bg:light-dark(#f4433620, #f4433630);--content-width:120rem;--border-radius:50em;--font-stack:'Jost', 'Helvetica Neue', 'Helvetica', 'Arial', 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ease}.header-profile:hover{background:var(--color-panel)}.header-link{font-size:1.8rem;font-weight:var(--font-weight-bold);padding:.8rem 1.6rem;border-radius:var(--border-radius);text-decoration:none;color:var(--color-body);transition:background .2s ease}.header-link:hover{background:var(--color-panel)}.flex{display:flex;align-items:center}.flex-column{flex-direction:column}.flex-gap{gap:2rem}.flex-wrap{flex-wrap:wrap}.pull-right{margin-left:auto}.center,.justify-center{justify-content:center}.footer-links{display:flex;gap:2rem;margin-left:2rem}.footer-links a{font-size:1.6rem;text-decoration:none;color:var(--color-body);opacity:.7;transition:opacity .2s ease}.footer-links a:hover{opacity:1}article{background-color:var(--color-background);max-width:100rem;margin:2rem auto;padding:1rem 4rem;border-radius:1.5rem}article h1{font-size:4rem;margin:3rem 0}article h2{font-size:2.8rem;margin:3rem 0 2rem;color:var(--color-primary)}article p{font-size:1.8rem;line-height:1.75;margin:2rem 0}#loading{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(88,88,88,.8);z-index:1000}#loading img{width:60%}#msg{display:none;position:fixed;left:2rem;bottom:2rem;padding:1rem 2rem;border-radius:var(--border-radius);background-color:var(--color-body);color:var(--color-background);z-index:1001;max-width:80%;text-wrap:wrap;cursor:pointer}.hidden{display:none}.bg{background-color:var(--color-background)}.bg-primary{background-color:var(--color-primary)}.bg-secondary{background-color:var(--color-secondary)}.bg-panel{background-color:var(--color-panel)}.bg-lower{background-color:var(--color-lower)}.bg-pattern{background-image:url(/assets/img/bg.svg);background-size:32rem;background-position:fixed}.bg-pattern-light{background-image:url(/assets/img/bg-light.svg);background-size:32rem;background-position:fixed}.grid{max-width:var(--content-width);margin:0 auto;padding:3rem 0;display:grid;grid-gap:3rem}.grid-column-span-2{grid-column-end:span 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.lesson-title{color:var(--color-background)}.bonus-badge{display:inline-block;background:var(--color-background);color:var(--color-highlight);padding:.5rem 1.2rem;border-radius:2rem;font-size:1.4rem;font-weight:var(--font-weight-bold);margin-top:.8rem;border:.2rem solid var(--color-background)}@media(max-width:60em){.lesson-roadmap::before{left:3rem}.lesson-step.lesson-left,.lesson-step.lesson-right{justify-content:flex-start;padding-left:6rem;padding-right:2rem}.lesson-left .lesson-node::before{left:-3.3rem;right:auto}.lesson-node,.lesson-milestone,.lesson-bonus{min-width:auto;max-width:100%}}#q{margin:4rem 0 3rem;background-color:var(--color-background);border-radius:2rem;padding:2rem 3rem;box-shadow:0 0 1rem rgba(var(--color-bg-rgb),.2);transition:all .3s ease}#q.correct{border:.3rem solid var(--color-success);animation:pulse-correct .5s ease}#q.wrong{border:.3rem solid var(--color-error);animation:shake .5s ease}#q .flex{width:100%;justify-content:center;margin-top:2rem}#q .flex>*{margin:.5rem 1rem}.lesson-progress{margin:2rem 0}.progress-bar{width:100%;height:1rem;background-color:var(--color-panel);border-radius:var(--border-radius);overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));transition:width .3s ease}.progress-text{text-align:center;margin-top:.5rem;font-size:1.4rem;opacity:.8}.feedback{margin-top:2rem;padding:1.5rem;border-radius:1rem;font-size:1.8rem;font-weight:var(--font-weight-bold);display:flex;align-items:center;gap:1rem}.feedback.correct{background-color:var(--color-success-bg);color:var(--color-success);border:.2rem solid var(--color-success)}.feedback.wrong{background-color:var(--color-error-bg);color:var(--color-error);border:.2rem solid var(--color-error)}.feedback-icon{font-size:2.4rem;font-weight:700}.notes-display{text-align:center;font-size:3rem}.notes-display p{margin:2rem 0}.notes-display img{max-width:100%;height:auto;margin:2rem auto}.notes-display button{margin-top:3rem}#lesson-actions{display:flex;justify-content:center;gap:2rem;margin:3rem 0}.button-primary{padding:1.5rem 4rem;font-size:2rem;background-color:var(--color-primary);color:var(--color-background);border:none;border-radius:var(--border-radius);cursor:pointer;font-weight:var(--font-weight-bold);transition:all .2s ease}.button-primary:hover{transform:scale(1.05);box-shadow:0 .5rem 1rem rgba(0,0,0,.2)}.button-primary:active{transform:scale(.98)}.button-secondary{padding:1.5rem 4rem;font-size:2rem;background-color:initial;color:var(--color-body);border:.2rem solid var(--color-body);border-radius:var(--border-radius);cursor:pointer;font-weight:var(--font-weight-bold);transition:all .2s ease}.button-secondary:hover{background-color:var(--color-panel)}.completion-screen{text-align:center;padding:4rem 2rem;animation:fadeIn .5s ease}.completion-screen h2{font-size:4rem;margin-bottom:3rem;animation:bounceIn .6s 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#333;border-bottom:none}.detail-row .positive{color:#22c55e;font-weight:600}.detail-row .negative{color:#ef4444;font-weight:600}.detail-row .cash-total{color:var(--color-primary);font-size:1.8rem}.bonuses{background:linear-gradient(135deg,#fef3c7 0%,#fde68a 100%);padding:2rem;border-radius:1rem;margin:2rem 0}.bonus-item{font-size:1.8rem;font-weight:600;color:#92400e;margin:.5rem 0}.score-message{font-size:2.4rem;margin:2rem 0;font-weight:var(--font-weight-bold);color:#1a1a1a}.completion-actions{display:flex;justify-content:center;gap:2rem;margin-top:3rem;flex-wrap:wrap}input:disabled+label.button,label.button.disabled{opacity:.5;cursor:not-allowed}@keyframes pulse-correct{0%,100%{transform:scale(1)}50%{transform:scale(1.02)}}@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-1rem)}75%{transform:translateX(1rem)}}@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes bounceIn{0%{transform:scale(.3);opacity:0}50%{transform:scale(1.05)}70%{transform:scale(.9)}100%{transform:scale(1);opacity:1}}.profile-page{max-width:120rem;margin:0 auto;padding:2rem}.profile-page h1{font-size:4rem;margin-bottom:3rem;text-align:center}.profile-page h2{font-size:2.8rem;margin:4rem 0 2rem}.profile-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(25rem,1fr));gap:2rem;margin-bottom:4rem}.stat-card{background:var(--color-panel);border-radius:2rem;padding:2rem;display:flex;align-items:center;gap:2rem;transition:transform .2s ease}.stat-card:hover{transform:translateY(-.5rem)}.stat-icon{font-size:5rem}.stat-content{flex:1}.stat-label{font-size:1.4rem;opacity:.7;margin-bottom:.5rem}.stat-value{font-size:3.6rem;font-weight:var(--font-weight-bold);color:var(--color-primary)}.stat-meta{font-size:1.4rem;opacity:.6;margin-top:.5rem}.level-progress-section{background:var(--color-panel);border-radius:2rem;padding:3rem;margin-bottom:4rem}.level-progress-bar{width:100%;height:3rem;background:var(--color-background);border-radius:var(--border-radius);overflow:hidden;margin:2rem 0}.level-progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));transition:width .5s ease}.level-progress-text{text-align:center;font-size:1.8rem;opacity:.8}.daily-goal-section{background:var(--color-panel);border-radius:2rem;padding:3rem;margin-bottom:4rem}.daily-goal-container{display:flex;align-items:center;gap:4rem;flex-wrap:wrap;justify-content:center}.daily-goal-circle{position:relative;width:20rem;height:20rem}.daily-goal-circle svg{width:100%;height:100%;transform:rotate(-90deg)}.daily-goal-bg{fill:none;stroke:var(--color-background);stroke-width:8}.daily-goal-progress{fill:none;stroke:var(--color-primary);stroke-width:8;stroke-linecap:round;stroke-dasharray:283;stroke-dashoffset:283;transition:stroke-dashoffset .5s ease}.daily-goal-text{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center}.daily-goal-value{font-size:4rem;font-weight:var(--font-weight-bold);color:var(--color-primary)}.daily-goal-label{font-size:1.6rem;opacity:.7}.daily-goal-message{font-size:2.4rem;font-weight:var(--font-weight-bold)}.achievements-section{margin-bottom:4rem}.achievements-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(20rem,1fr));gap:2rem}.achievement{background:var(--color-panel);border-radius:2rem;padding:2rem;text-align:center;transition:transform .2s ease}.achievement.earned{border:.2rem solid var(--color-primary)}.achievement.earned:hover{transform:scale(1.05)}.achievement.locked{opacity:.4}.achievement-icon{font-size:5rem;margin-bottom:1rem}.achievement-name{font-size:1.8rem;font-weight:var(--font-weight-bold);margin-bottom:.5rem}.achievement-desc{font-size:1.4rem;opacity:.7}.unit-progress-section{margin-bottom:4rem}.unit-progress-card{background:var(--color-panel);border-radius:2rem;padding:2rem;margin-bottom:2rem}.unit-progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.unit-progress-header h3{font-size:2.4rem;margin:0}.unit-progress-percent{font-size:2.4rem;font-weight:var(--font-weight-bold);color:var(--color-primary)}.unit-progress-bar{width:100%;height:1.5rem;background:var(--color-background);border-radius:var(--border-radius);overflow:hidden;margin-bottom:1rem}.unit-progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));transition:width .5s ease}.unit-progress-stats{display:flex;justify-content:space-between;font-size:1.6rem;opacity:.8}.match-question{display:flex;flex-direction:column;gap:1.5rem;margin:2rem 0}.match-item{display:flex;align-items:center;gap:1.5rem;padding:1.5rem;background:var(--color-panel);border-radius:1rem}.match-left-text{flex:1;font-weight:var(--font-weight-bold);min-width:20rem}.match-select{flex:1;padding:1rem 1.5rem;font-size:1.8rem;border:2px solid var(--color-secondary);border-radius:.8rem;background:var(--color-background);color:var(--color-body);font-family:var(--font-stack);cursor:pointer;transition:border-color .2s}.match-select:hover{border-color:var(--color-primary)}.match-select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(0,168,144,.1)}.match-select:disabled{opacity:.5;cursor:not-allowed}.realtime-question{margin:2rem 0}.realtime-status{text-align:center;padding:1rem;margin-bottom:1rem;background:var(--color-panel);border-radius:.8rem;transition:opacity .3s}.realtime-status small{font-size:1.4rem;opacity:.8}.realtime-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem 2rem;background:var(--color-panel);border-radius:1rem;text-align:center}.realtime-loading p{margin:0 0 1.5rem;font-size:2rem;font-weight:var(--font-weight-bold)}.realtime-loading .error{color:var(--color-error)}.realtime-error{background:var(--color-panel);border:2px solid var(--color-error);border-radius:1rem;padding:2rem;text-align:center;margin:1rem 0}.realtime-error p{font-size:1.8rem;margin:0 0 1.5rem;color:var(--color-text)}.spinner{width:4rem;height:4rem;border:4px solid var(--color-panel);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.hints-container{margin:2rem 0}.button-hint{padding:.8rem 1.5rem;font-size:1.6rem;background:var(--color-secondary);color:var(--color-background);border:none;border-radius:.8rem;cursor:pointer;font-family:var(--font-stack);font-weight:var(--font-weight-bold);transition:all .2s}.button-hint:hover:not(:disabled){background:var(--color-primary);transform:translateY(-2px)}.button-hint:disabled{opacity:.5;cursor:not-allowed}.hints-display{margin-top:1.5rem}.hint-item{padding:1.5rem;margin-bottom:1rem;background:var(--color-panel);border-left:4px solid var(--color-highlight);border-radius:.8rem;font-size:1.8rem;line-height:1.6}.hint-item strong{color:var(--color-highlight);display:block;margin-bottom:.5rem}.earnings-notification{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%)scale(.8);background:var(--color-highlight);color:var(--color-background);padding:2rem 4rem;border-radius:1rem;font-size:3rem;font-weight:var(--font-weight-bold);z-index:9999;opacity:0;transition:all .3s 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