@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{color-scheme:dark;--ink:#edf4e8;--muted:#adb9a5;--paper:#151d18;--surface:#202b23;--surface-raised:#27352b;--surface-hover:#304132;--surface-overlay:#202b23ed;--line:#3b4c3f;--green:#c3f658;--accent-hover:#b5ed47;--accent-ink:#20351f;--dark:#304636;--link:#bce68e;--soft-green:#253a22;--success-text:#bce68e;--success-border:#5d8047;--success-fill:#36512d;--blue:#223345;--blue-fill:#2c4661;--blue-text:#abcdf3;--blue-border:#40576e;--soft-orange:#423423;--orange-text:#f4cf8f;--soft-red:#442729;--red:#ffb6b6;--error-border:#a86368;--error-fill:#633337;--overlay:#080e0bcc;--illustration:#f2f4ed;--radius:20px;--shadow:0 6px 24px #0003;font-family:'DM Sans',system-ui,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none;font-size:16px}

*{box-sizing:border-box}
body{margin:0}
button,input,select{font:inherit}
button,a,input,summary,select{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
a{color:inherit}
button{color:inherit}
button:disabled{cursor:default;opacity:.48}
button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid var(--green);outline-offset:4px}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-family:'Manrope',system-ui,sans-serif}
p{line-height:1.65}
h1{font-size:2.25rem;line-height:1.2;letter-spacing:-1.1px;font-weight:800}
h2{font-size:1.45rem;letter-spacing:-.5px;font-weight:800}
h3{font-size:1.05rem;letter-spacing:-.3px;font-weight:750}
img{display:block;max-width:100%}
svg.icon{width:21px;height:21px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
button svg.icon{width:19px;height:19px}
.skip-link{color:var(--accent-ink);position:fixed;top:-100px;left:20px;padding:12px;background:var(--green);z-index:100}
.skip-link:focus{top:12px}
.app-layout{display:flex;min-height:100vh}
.sidebar{width:240px;position:fixed;inset:0 auto 0 0;background:var(--surface);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:32px 21px;z-index:20}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;margin:0 15px 40px}
.brand-mark{color:var(--accent-ink);width:37px;height:37px;border-radius:12px;background:var(--green);display:grid;place-items:center;font-family:Manrope,sans-serif;font-weight:800;font-size:1.3rem;transform:rotate(-5deg)}
.brand-name{font-family:Manrope,sans-serif;font-size:1.55rem;font-weight:800;letter-spacing:-1px}
.brand-name small{font-size:.75rem;letter-spacing:1px;font-weight:650;display:block;color:var(--muted);margin-top:1px}
.nav-label{font-size:.75rem;letter-spacing:1.5px;color:var(--muted);margin:0 15px 12px}
.nav{display:grid;gap:7px}
.nav a{display:flex;align-items:center;gap:13px;text-decoration:none;padding:13px 16px;font-size:.93rem;font-weight:550;border-radius:12px;color:var(--muted);transition:background .18s}
.nav a.active{background:var(--green);color:var(--accent-ink);font-weight:700}
.nav a:hover:not(.active){background:var(--paper)}
.nav .nav-count{color:var(--ink);margin-left:auto;font-size:.8rem;background:var(--surface-raised);border-radius:6px;min-width:24px;text-align:center;padding:2px 5px}
.sidebar-bottom{margin-top:auto}
.sidebar-note{background:var(--paper);padding:19px;border-radius:15px;margin:25px 0 20px}
.sidebar-note .icon{margin-bottom:11px;color:var(--success-text)}
.sidebar-note p{font-size:.85rem;color:var(--muted);margin-top:6px}
.sidebar-footer{display:flex;align-items:center;gap:9px;font-size:.8rem;color:var(--muted);padding:0 10px}
.sidebar-footer .icon{width:16px;height:16px}
.content-wrap{width:calc(100% - 240px);margin-left:240px}
.topbar{height:84px;border-bottom:1px solid var(--line);background:var(--paper);display:flex;align-items:center;justify-content:space-between;padding:0 46px;gap:15px}
.breadcrumb{font-size:.88rem;color:var(--muted);display:flex;align-items:center;gap:10px}
.breadcrumb strong{color:var(--ink);font-weight:550}
.top-actions{display:flex;align-items:center;gap:15px}
.region-chip{font-size:.8rem;color:var(--muted);display:flex;align-items:center;gap:8px}
.region-chip .flag{width:17px;height:12px;background:linear-gradient(90deg,#202020 33%,#f9d441 33%,#f9d441 66%,#e14947 66%);border-radius:2px}
.avatar{width:34px;height:34px;background:var(--dark);border-radius:50%;display:grid;place-items:center;color:var(--green);font-weight:750;font-size:.8rem}
.icon-button{width:37px;height:37px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--surface)}
.mobile-menu{display:none}
main{padding:35px 46px 46px;max-width:1460px;margin:0 auto}
.page-intro{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:26px;gap:20px}
.page-intro p{color:var(--muted);font-size:.95rem;margin-top:9px}
.eyebrow{font-size:.75rem;font-weight:750;letter-spacing:1.6px;text-transform:uppercase;color:var(--success-text);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.pill{display:inline-flex;align-items:center;gap:6px;border-radius:99px;padding:6px 11px;font-size:.75rem;font-weight:650;white-space:nowrap;background:var(--surface-raised);color:var(--success-text)}
.pill .icon{width:14px;height:14px}
.pill.green{background:var(--soft-green);color:var(--success-text)}
.pill.blue{background:var(--blue);color:var(--blue-text)}
.pill.orange{background:var(--soft-orange);color:var(--orange-text)}
.pill.red{background:var(--soft-red);color:var(--red)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:11px;padding:12px 18px;min-height:45px;background:var(--green);color:var(--accent-ink);text-decoration:none;font-weight:700;font-size:.9rem;line-height:1.3;transition:transform .15s,background .15s}
.button:hover{background:var(--accent-hover);transform:translateY(-1px)}
.button.dark{background:var(--dark);color:var(--ink)}
.button.dark:hover{background:var(--surface-hover)}
.button.secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}
.button.secondary:hover{background:var(--surface-raised)}
.button.ghost{background:transparent;border-color:transparent;font-weight:550;color:var(--muted);padding:9px 10px}
.button.danger{background:var(--soft-red);color:var(--red)}
.text-link{background:none;border:0;color:var(--link);font-size:.88rem;font-weight:650;text-decoration:none;display:inline-flex;align-items:center;gap:7px;padding:3px 0}
.text-link:hover{text-decoration:underline}
.small{font-size:.85rem}
.muted{color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.dashboard-top{display:grid;grid-template-columns:minmax(0,1fr) 284px;gap:21px;margin-bottom:31px}
.continue-card{position:relative;overflow:hidden;display:grid;grid-template-columns:1.03fr .97fr;min-height:293px;background:var(--soft-green)}
.continue-copy{padding:29px 28px;position:relative;z-index:2}
.continue-copy .eyebrow{color:var(--success-text)}
.continue-copy h2{font-size:1.85rem;line-height:1.25;max-width:290px;margin:13px 0 12px;letter-spacing:-.8px}
.continue-copy p{font-size:.9rem;color:var(--muted);max-width:290px}
.continue-copy .button{margin-top:22px}
.continue-visual{position:relative;min-height:100%;background:var(--blue);overflow:hidden}
.continue-visual img{height:100%;width:100%;object-fit:cover}
.image-credit{position:absolute;bottom:9px;right:10px;background:var(--surface-overlay);color:var(--ink);border-radius:5px;padding:3px 7px;font-size:.75rem}
.visual-badge{position:absolute;top:19px;right:16px;border-radius:12px;background:var(--surface);box-shadow:0 4px 20px #0005;padding:10px 13px;display:flex;gap:9px;align-items:center;font-size:.8rem;font-weight:650}
.visual-badge .icon{color:var(--success-text)}
.progress-card{padding:25px;display:flex;flex-direction:column;align-items:center;text-align:center}
.progress-card h3{font-size:.95rem;width:100%;text-align:left}
.progress-ring{width:130px;height:130px;border-radius:50%;background:conic-gradient(var(--green) var(--angle),var(--surface-raised) 0);display:grid;place-items:center;margin:18px 0 12px;position:relative}
.progress-ring:before{content:'';position:absolute;inset:10px;background:var(--surface);border-radius:50%}
.ring-value{position:relative;display:grid;gap:0}
.ring-value strong{font-family:Manrope,sans-serif;font-size:1.8rem;font-weight:800;line-height:1.2}
.ring-value span{font-size:.75rem;color:var(--muted)}
.progress-card p{font-size:.82rem;color:var(--muted);line-height:1.4}
.progress-card .text-link{margin-top:15px;font-size:.82rem}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:27px 0 17px}
.section-head h2{font-size:1.24rem}
.section-head p{font-size:.86rem;color:var(--muted);margin-top:5px}
.dashboard-middle{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.session-card{padding:22px 24px;display:grid;gap:15px}
.session-header{display:flex;justify-content:space-between;align-items:center;gap:10px}
.session-header h3{display:flex;gap:9px;align-items:center}
.session-card p{color:var(--muted);font-size:.85rem;line-height:1.55}
.session-range{width:100%;accent-color:var(--green);height:6px;cursor:pointer;margin:14px 0 9px}
.range-labels{display:flex;justify-content:space-between;font-size:.75rem;color:var(--muted)}
.quiz-teaser{padding:22px 24px;display:flex;align-items:center;gap:20px;background:var(--blue);border-color:var(--blue-border)}
.quiz-teaser h3{font-size:1.05rem}
.quiz-teaser p{font-size:.85rem;color:var(--blue-text);margin:8px 0 15px}
.quiz-teaser .quiz-icon{width:60px;height:60px;background:var(--blue-fill);color:var(--blue-text);border-radius:17px;display:grid;place-items:center;flex:none;transform:rotate(-5deg)}
.quiz-icon .icon{width:29px;height:29px}
.chapter-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.chapter-card{overflow:hidden;text-decoration:none;display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s}
.chapter-card:hover{transform:translateY(-3px);box-shadow:0 10px 30px #0005}
.chapter-image{height:128px;position:relative;background:var(--surface-raised);overflow:hidden}
.chapter-image img{height:100%;width:100%;object-fit:cover}
.chapter-image.sign-image{background:var(--illustration);padding:14px}
.chapter-image.sign-image img{object-fit:contain;mix-blend-mode:normal}
.chapter-number{position:absolute;top:12px;left:13px;background:var(--surface-overlay);border-radius:7px;padding:4px 8px;font-size:.75rem;font-weight:750;backdrop-filter:blur(5px)}
.chapter-body{padding:19px 20px}
.chapter-body h3{font-size:1rem;line-height:1.4;margin-bottom:7px}
.chapter-body p{font-size:.82rem;color:var(--muted);line-height:1.5}
.chapter-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:17px;font-size:.75rem;color:var(--muted)}
.progress-track{height:5px;background:var(--surface-raised);border-radius:99px;overflow:hidden;margin-top:12px}
.progress-track>span{display:block;height:100%;background:var(--green);border-radius:99px}
.footer-note{display:flex;align-items:center;justify-content:space-between;gap:20px;color:var(--muted);font-size:.78rem;margin-top:33px;line-height:1.6}
.footer-note a{color:var(--link)}
.learning-header{display:flex;gap:15px;justify-content:space-between;align-items:center;margin-bottom:22px}
.learning-header .left{display:flex;align-items:center;gap:12px}
.lesson-path{display:flex;align-items:center;gap:7px;flex-wrap:wrap;color:var(--muted);font-size:.85rem}
.lesson-path a{text-decoration:none}
.lesson-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:25px}
.lesson-list{align-self:start;padding:20px}
.lesson-list h3{font-size:.95rem;padding-bottom:15px}
.lesson-list a{display:flex;align-items:center;gap:10px;border-radius:9px;padding:10px 9px;text-decoration:none;font-size:.83rem;line-height:1.45;margin:3px 0;color:var(--muted)}
.lesson-list a.active{background:var(--soft-green);color:var(--success-text);font-weight:650}
.lesson-list a:hover{background:var(--paper)}
.lesson-status{width:22px;height:22px;border:1px solid var(--line);border-radius:50%;font-size:.72rem;display:grid;place-items:center;flex:none}
.lesson-status.done{background:var(--soft-green);border-color:var(--success-border);color:var(--success-text)}
.lesson-status .icon{width:13px;height:13px}
.lesson-panel{padding:29px 32px;min-width:0}
.lesson-step-header{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:12px}
.lesson-step-header .steps{display:flex;gap:5px}
.steps span{width:25px;height:4px;background:var(--surface-raised);border-radius:3px}
.steps span.done{background:var(--green)}
.lesson-title{margin:22px 0 10px;font-size:1.8rem;line-height:1.25}
.lesson-summary{font-size:1.03rem;color:var(--muted);line-height:1.75;margin-bottom:22px}
.lesson-photo{background:var(--surface-raised);border-radius:14px;overflow:hidden;border:1px solid var(--line);margin-bottom:23px;position:relative}
.lesson-photo img{width:100%;max-height:290px;object-fit:contain;padding:12px;background:var(--illustration)}
.lesson-photo.photo img{padding:0;object-fit:cover}
.lesson-photo figcaption{padding:10px 14px;font-size:.78rem;color:var(--muted);line-height:1.5}
.lesson-facts{display:grid;gap:15px;margin:22px 0}
.fact{display:flex;gap:13px;font-size:.95rem;line-height:1.65}
.fact-number{flex:none;width:27px;height:27px;border-radius:8px;background:var(--soft-green);color:var(--success-text);display:grid;place-items:center;font-size:.8rem;font-weight:750;margin-top:2px}
.remember{display:flex;align-items:flex-start;gap:13px;background:var(--soft-green);border:1px solid var(--success-border);padding:18px 20px;border-radius:13px;margin:22px 0}
.remember .icon{margin-top:3px;color:var(--success-text)}
.remember strong{display:block;font-size:.85rem;margin-bottom:5px}
.remember p{font-size:.95rem;line-height:1.65;color:var(--success-text)}
.details{border:1px solid var(--line);border-radius:12px;margin:20px 0;overflow:hidden}
.details summary{padding:14px 17px;font-size:.88rem;font-weight:650;cursor:pointer}
.details p{padding:0 17px 17px;font-size:.9rem;color:var(--muted);line-height:1.7}
.lesson-source{font-size:.75rem;color:var(--muted);margin:22px 0;line-height:1.6}
.lesson-source a{color:var(--link)}
.lesson-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:22px;gap:15px}
.focus .sidebar{display:none}
.focus .content-wrap{width:100%;margin-left:0}
.focus .lesson-layout{grid-template-columns:minmax(0,820px);justify-content:center}
.focus .lesson-list{display:none}
.focus main{max-width:1000px}
.focus .topbar{max-width:1000px;margin:0 auto}
.quiz-config{padding:26px;max-width:850px}
.quiz-config h2{margin-bottom:8px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:25px 0}
.field{display:grid;gap:8px}
.field label{font-size:.85rem;font-weight:650}
.field select{padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);width:100%;color:var(--ink)}
.mode-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:26px}
.mode-card{padding:25px;display:flex;flex-direction:column;align-items:flex-start}
.review-card{background:var(--soft-green)}
.mode-card>svg{width:29px;height:29px;margin-bottom:17px;color:var(--success-text)}
.mode-card h2{font-size:1.3rem;margin-bottom:10px}
.mode-card p{font-size:.9rem;color:var(--muted);margin-bottom:19px;line-height:1.65}
.mode-card .button{margin-top:auto}
.quiz-layout{max-width:830px;margin:0 auto}
.quiz-top{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:19px}
.quiz-top .progress-track{width:200px}
.quiz-question{padding:30px}
.quiz-question h2{font-size:1.55rem;line-height:1.5;letter-spacing:-.5px;margin:16px 0 23px}
.question-image{background:var(--paper);border-radius:12px;border:1px solid var(--line);overflow:hidden;margin-bottom:20px}
.question-image img{width:100%;height:220px;object-fit:contain;background:var(--illustration);padding:10px}
.choices{display:grid;gap:12px;margin:20px 0}
.choice{display:flex;align-items:center;gap:13px;padding:16px 19px;width:100%;text-align:left;border:1px solid var(--line);border-radius:12px;background:var(--surface);font-size:.95rem;line-height:1.5}
.choice:hover:enabled{background:var(--surface-hover);border-color:var(--success-border)}
.choice-letter{border:1px solid var(--line);border-radius:7px;width:30px;height:30px;display:grid;place-items:center;font-size:.8rem;font-weight:700;flex:none}
.choice.selected{background:var(--soft-green);border-color:var(--success-border)}
.choice.correct{background:var(--soft-green);border-color:var(--success-border);color:var(--success-text)}
.choice.wrong{background:var(--soft-red);border-color:var(--error-border);color:var(--red)}
.choice:disabled{opacity:1}
.choice.correct .choice-letter{background:var(--success-fill);border-color:var(--success-border)}
.choice.wrong .choice-letter{background:var(--error-fill);border-color:var(--error-border)}
.answer-feedback{color:var(--success-text);padding:18px 21px;border-radius:12px;background:var(--soft-green);margin:20px 0;font-size:.9rem;line-height:1.6}
.answer-feedback.wrong{background:var(--soft-orange);color:var(--orange-text)}
.answer-feedback strong{display:flex;align-items:center;gap:7px;margin-bottom:8px}
.answer-feedback a{display:block;margin-top:10px;color:inherit;text-decoration:underline}
.question-footer{display:flex;justify-content:space-between;align-items:center;gap:15px;padding-top:17px}
.question-footer .small{font-size:.8rem;color:var(--muted)}
.result-card{text-align:center;padding:40px;max-width:820px;margin:0 auto}
.result-symbol{width:75px;height:75px;background:var(--soft-green);border-radius:22px;display:grid;place-items:center;margin:0 auto 23px;transform:rotate(-6deg)}
.result-symbol svg{width:34px;height:34px;color:var(--success-text)}
.result-score{font-size:3.5rem;font-family:Manrope,sans-serif;font-weight:800;letter-spacing:-2px;line-height:1.3;margin:18px 0 10px}
.result-score span{font-size:1.5rem;color:var(--muted);letter-spacing:0}
.result-card>p{color:var(--muted);margin:10px 0 24px}
.result-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:25px}
.review-list{margin-top:25px;text-align:left}
.review-item{padding:18px 0;border-top:1px solid var(--line)}
.review-item h3{font-size:.95rem;line-height:1.65;margin:9px 0}
.review-item p{font-size:.86rem;color:var(--muted)}
.exam-info{display:grid;grid-template-columns:1.25fr .75fr;gap:25px}
.exam-info-main{padding:29px}
.exam-info-main h2{font-size:1.65rem;margin-bottom:15px}
.exam-stats{display:flex;gap:24px;padding:20px 0;margin:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.exam-stat strong{font-family:Manrope,sans-serif;font-size:1.7rem;font-weight:800;display:block}
.exam-stat span{font-size:.78rem;color:var(--muted)}
.exam-rules{padding-left:20px;display:grid;gap:12px;font-size:.93rem;line-height:1.65;color:var(--muted);margin:22px 0}
.exam-side{padding:23px;align-self:start;background:var(--soft-green);border-color:var(--success-border)}
.exam-side h3{margin-bottom:10px}
.exam-side p{font-size:.88rem;color:var(--muted);margin:12px 0}
.exam-side a{font-size:.85rem;color:var(--link)}
.audio-status{display:flex;align-items:center;gap:10px;border:1px solid var(--success-border);background:var(--soft-green);padding:13px 16px;border-radius:11px;font-size:.85rem;color:var(--success-text);min-height:49px}
.audio-status .icon{width:18px;height:18px}
.audio-status .text-link{margin-left:auto;font-size:.8rem}
.timer{display:flex;align-items:center;gap:7px;font-family:Manrope,sans-serif;font-weight:800;border-radius:99px;padding:9px 15px;background:var(--soft-green);font-size:1.1rem;white-space:nowrap;min-width:86px;justify-content:center}
.timer.urgent{background:var(--soft-orange);color:var(--orange-text)}
.timer.waiting{background:var(--surface-raised);color:var(--muted);font-size:.83rem}
.timer-track{height:5px;margin-top:10px;background:var(--surface-raised);border-radius:99px;overflow:hidden}
.timer-track span{display:block;background:var(--green);height:100%;transition:width .2s linear}
.exam-submit{width:100%;margin-top:7px}
.history-list{display:grid;gap:12px;margin-top:18px}
.history-row{padding:15px 20px;display:flex;justify-content:space-between;align-items:center;gap:15px;font-size:.9rem}
.history-row small{display:block;font-size:.78rem;color:var(--muted);margin-top:5px}
.history-score{font-weight:750;white-space:nowrap}
.progress-overview{padding:27px;display:grid;grid-template-columns:160px 1fr;align-items:center;gap:30px;margin-bottom:25px}
.progress-overview .progress-ring{margin:0 auto}
.progress-overview h2{margin-bottom:9px}
.progress-overview p{color:var(--muted);font-size:.9rem}
.chapter-progress{padding:22px 25px;display:grid;grid-template-columns:minmax(0,1fr) 150px 100px;align-items:center;gap:20px;margin-bottom:12px}
.chapter-progress h3{font-size:.95rem}
.chapter-progress .progress-track{margin:0;height:7px}
.chapter-progress p{font-size:.8rem;color:var(--muted);margin-top:5px}
.chapter-progress .text-link{justify-self:end}
.storage-card{padding:24px;margin-top:28px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.storage-card p{font-size:.85rem;color:var(--muted);max-width:650px;margin-top:7px}
.storage-actions{display:flex;gap:9px;flex-wrap:wrap;flex:none}
.source-intro{padding:23px 25px;margin-bottom:20px;background:var(--soft-green);border-color:var(--success-border)}
.source-intro p{font-size:.9rem;color:var(--success-text)}
.source-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.source-card{padding:25px}
.source-card h3{margin:12px 0 10px}
.source-card p{font-size:.86rem;color:var(--muted);margin-bottom:15px}
.source-card a{font-size:.85rem;color:var(--link);overflow-wrap:anywhere}
.updates-list{padding:25px;margin-top:25px}
.updates-list h2{font-size:1.25rem}
.updates-list li{font-size:.9rem;line-height:1.7;margin:12px 0;color:var(--success-text)}
.empty-state{padding:32px;text-align:center}
.empty-state h3{margin:13px 0 9px}
.empty-state p{color:var(--muted);font-size:.9rem;max-width:500px;margin:0 auto 18px}
.modal-backdrop{position:fixed;inset:0;background:var(--overlay);backdrop-filter:blur(4px);z-index:100;display:grid;place-items:center;padding:20px}
.modal{background:var(--surface);border-radius:20px;padding:30px;max-width:460px;width:100%;box-shadow:0 20px 90px #0005;outline:none}
.modal h2{font-size:1.45rem;margin-bottom:14px}
.modal p{font-size:.95rem;color:var(--muted);margin:12px 0 22px}
.modal-actions{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
.modal-close{float:right;border:0;background:transparent;color:var(--muted);padding:0 0 8px 8px}
.break-banner{padding:15px 20px;border:1px solid var(--success-border);border-radius:12px;background:var(--soft-green);display:flex;align-items:center;gap:15px;margin-bottom:22px;font-size:.88rem}
.break-banner p{flex:1}
.break-banner button{flex:none}
.settings-note{font-size:.8rem;color:var(--muted);line-height:1.6}
.storage-warning{padding:13px 20px;background:var(--soft-orange);color:var(--orange-text);font-size:.85rem;line-height:1.55;margin-bottom:22px;border-radius:10px}
#toast{position:fixed;bottom:25px;left:calc(50% + 100px);transform:translateX(-50%) translateY(15px);background:#26372c;color:var(--ink);padding:13px 21px;border-radius:12px;box-shadow:0 8px 30px #0005;font-size:.88rem;z-index:120;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;max-width:90vw}
#toast.visible{opacity:1;transform:translateX(-50%) translateY(0)}
.active-session{display:flex;gap:8px;align-items:center;font-size:.8rem;color:var(--muted)}
.active-session .icon{width:15px;height:15px}
.lesson-completed{text-align:center;padding:35px 20px}
.lesson-completed h2{margin:22px 0 12px}
.lesson-completed>p{color:var(--muted);margin:10px auto 23px;max-width:460px}
.lesson-completed .result-actions{margin-top:22px}
.focus-toggle{white-space:nowrap}
.legal-foot{font-size:.8rem;color:var(--muted);line-height:1.7;margin-top:25px}
.topic-filter{display:flex;gap:8px;flex-wrap:wrap;margin:20px 0}
.filter-chip{border:1px solid var(--line);background:var(--surface);border-radius:99px;padding:8px 13px;font-size:.85rem}
.filter-chip.active{background:var(--soft-green);border-color:var(--success-border);color:var(--success-text)}
.subheading{font-size:.85rem;font-weight:650;margin:16px 0 8px}
.source-table{width:100%;border-collapse:collapse;margin-top:20px;font-size:.86rem}
.source-table th,.source-table td{padding:13px 15px;border-bottom:1px solid var(--line);text-align:left;line-height:1.65}
.source-table th{background:var(--paper)}
.source-table a{color:var(--link)}

@media(min-width:1500px){main{padding-top:42px}
.continue-card{min-height:310px}
.chapter-image{height:153px}
.continue-copy h2{font-size:2rem}
}

@media(max-width:1150px){.sidebar{width:207px;padding:29px 15px}
.content-wrap{width:calc(100% - 207px);margin-left:207px}
.topbar{padding:0 29px}
main{padding:29px}
.dashboard-top{grid-template-columns:minmax(0,1fr) 240px;gap:16px}
.continue-copy{padding:25px 23px}
.continue-copy h2{font-size:1.55rem}
.continue-card{grid-template-columns:1.15fr .85fr}
.progress-card{padding:21px}
.chapter-grid{gap:14px}
.chapter-body{padding:16px}
.chapter-body h3{font-size:.95rem}
.lesson-layout{grid-template-columns:210px minmax(0,1fr);gap:18px}
.lesson-panel{padding:25px}
.storage-card{align-items:flex-start;flex-direction:column}
.exam-info{grid-template-columns:1fr .65fr}
}

@media(max-width:950px){.dashboard-top{grid-template-columns:1fr 215px}
.continue-card{grid-template-columns:1fr}
.continue-visual{display:none}
.continue-copy{padding:25px}
.continue-copy h2{max-width:100%}
.continue-copy p{max-width:100%}
.chapter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.dashboard-middle{grid-template-columns:1fr}
.quiz-teaser{gap:18px}
.lesson-layout{grid-template-columns:1fr}
.lesson-list{display:none}
.exam-info{grid-template-columns:1fr}
.source-grid{grid-template-columns:1fr}
.mode-cards{grid-template-columns:1fr}
.chapter-progress{grid-template-columns:1fr 110px 80px}
.lesson-title{font-size:1.6rem}
.top-actions{gap:10px}
}

@media(max-width:700px){.sidebar{transform:translateX(-100%);transition:transform .2s;width:240px;box-shadow:12px 0 40px #0005}
.menu-open .sidebar{transform:translateX(0)}
.menu-open:after{content:'';position:fixed;inset:0 0 0 240px;background:var(--overlay);z-index:19}
.content-wrap{width:100%;margin-left:0}
.mobile-menu{display:grid}
.topbar{height:67px;padding:0 20px}
.breadcrumb{gap:8px;font-size:.82rem}
.top-actions{gap:11px}
.region-chip{font-size:.75rem}
.avatar{display:none}
.topbar .focus-toggle{display:none}
main{padding:25px 20px 32px}
h1{font-size:1.8rem;letter-spacing:-.8px}
.page-intro{align-items:flex-start;margin-bottom:22px}
.page-intro p{font-size:.86rem}
.page-intro .pill{font-size:.7rem}
.dashboard-top{grid-template-columns:1fr;gap:16px;margin-bottom:23px}
.continue-card{grid-template-columns:1.15fr .85fr;min-height:248px}
.continue-copy{padding:23px}
.continue-visual{display:block}
.continue-copy h2{font-size:1.45rem}
.continue-copy p{font-size:.85rem}
.continue-copy .eyebrow{font-size:.65rem;letter-spacing:1.3px}
.continue-copy .button{padding:11px 13px;margin-top:18px;font-size:.85rem}
.visual-badge{top:12px;right:10px;padding:7px 9px;font-size:.68rem}
.visual-badge .icon{width:15px}
.image-credit{font-size:.65rem;right:6px}
.progress-card{display:grid;grid-template-columns:85px 1fr;grid-template-rows:auto auto auto;padding:17px 21px;align-items:center;text-align:left;column-gap:20px}
.progress-card h3{grid-column:2;grid-row:1;font-size:.85rem}
.progress-card .progress-ring{grid-column:1;grid-row:1/4;width:80px;height:80px;margin:0}
.progress-card .progress-ring:before{inset:7px}
.progress-card .ring-value strong{font-size:1.25rem}
.progress-card .ring-value span{font-size:.65rem}
.progress-card .ring-value{text-align:center}
.progress-card p{grid-column:2;grid-row:2;font-size:.78rem;margin:3px 0}
.progress-card .text-link{grid-column:2;grid-row:3;margin:2px 0;font-size:.78rem}
.section-head{margin:23px 0 15px}
.section-head h2{font-size:1.15rem}
.section-head .text-link{font-size:.82rem}
.chapter-image{height:117px}
.chapter-body{padding:14px}
.chapter-bottom{font-size:.7rem;margin-top:14px}
.chapter-body p{font-size:.78rem}
.chapter-body h3{font-size:.9rem}
.footer-note{align-items:flex-start;font-size:.73rem;flex-direction:column;gap:6px}
.session-card,.quiz-teaser{padding:20px}
.lesson-panel{padding:23px 20px}
.learning-header{align-items:flex-start}
.lesson-path{font-size:.78rem}
.learning-header .button{font-size:.78rem;min-height:38px;padding:9px 12px}
.lesson-summary{font-size:1rem}
.fact{font-size:.92rem}
.lesson-title{font-size:1.6rem}
.lesson-bottom{flex-wrap:wrap}
.lesson-source{font-size:.73rem}
.quiz-question{padding:23px 20px}
.quiz-question h2{font-size:1.3rem}
.quiz-top .progress-track{width:130px}
.quiz-config{padding:23px 20px}
.form-grid{grid-template-columns:1fr;gap:17px}
.mode-card{padding:23px}
.question-image img{height:180px}
.choice{font-size:.9rem;padding:13px}
.result-card{padding:30px 20px}
.result-score{font-size:3rem}
.exam-info-main{padding:23px}
.exam-info-main h2{font-size:1.4rem}
.exam-stats{gap:20px;justify-content:space-between}
.exam-stat strong{font-size:1.5rem}
.exam-stat span{font-size:.72rem}
.exam-rules{font-size:.89rem}
.progress-overview{grid-template-columns:1fr;text-align:center;gap:22px;padding:25px}
.chapter-progress{padding:19px;grid-template-columns:1fr 70px;gap:14px}
.chapter-progress .progress-track{grid-column:1;grid-row:2}
.chapter-progress .text-link{grid-column:2;grid-row:1/3}
.storage-actions{gap:8px}
.storage-actions .button{font-size:.8rem;padding:10px 13px}
.source-card{padding:22px}
.source-table th,.source-table td{padding:10px 7px;font-size:.78rem}
.updates-list{padding:22px}
.audio-status{font-size:.8rem;padding:12px;flex-wrap:wrap}
.audio-status .text-link{font-size:.75rem}
.timer{font-size:1rem;padding:8px 12px}
#toast{left:50%;bottom:18px}
.modal{padding:25px}
.break-banner{align-items:flex-start;flex-wrap:wrap;font-size:.83rem}
.active-session{display:none}
.focus .mobile-menu{display:none}
}

@media(max-width:390px){main{padding:22px 15px}
.topbar{padding:0 15px}
.continue-card{grid-template-columns:1fr .65fr}
.continue-copy{padding:21px 17px}
.continue-copy h2{font-size:1.3rem}
.continue-copy p{font-size:.8rem}
.chapter-grid{gap:11px}
.chapter-body{padding:12px}
.chapter-body h3{font-size:.85rem}
.chapter-bottom{flex-wrap:wrap;gap:6px}
.choice-letter{width:25px;height:25px}
.region-chip{display:none}
}

@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

@media(max-width:700px){.page-intro{flex-wrap:wrap}
.page-intro>div{flex:1;min-width:230px}
.page-intro>.pill{font-size:.75rem}
.continue-copy .eyebrow,.visual-badge,.image-credit,.chapter-bottom,.pill,.progress-card .ring-value span{font-size:.75rem}
.brand-name small{white-space:nowrap;font-size:.75rem;letter-spacing:.7px}
.footer-note svg{width:16px;height:16px}
}