@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@500;600;700;800&display=swap');
:root{--ink:#173f36;--text:#243c35;--muted:#637069;--paper:#f6f7f0;--white:#fff;--line:#dce2d5;--lime:#d9ef95;--pale:#edf2e5;--good:#215941;--bad:#8e3f24;--bad-bg:#fff0e7;--purple:#66537c;--purple-bg:#f0ebf6;font-family:'DM Sans',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--paper);font-synthesis:none;color-scheme:light}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #6c7dcb;outline-offset:4px}button:disabled{cursor:default;opacity:.48}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:'Manrope',system-ui,sans-serif;color:var(--ink)}h1{font-size:clamp(30px,4vw,43px);line-height:1.16;letter-spacing:-1.4px;font-weight:800}h2{font-size:24px;line-height:1.35;letter-spacing:-.5px}h3{font-size:18px;line-height:1.4}p,li{line-height:1.65}small{font-size:12px}strong{font-weight:700}.top,.tabs,main,footer{max-width:1050px;margin:auto}.top{padding:27px 28px 22px;display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-weight:700;line-height:1.4}.brand small{display:block;font-size:9px;letter-spacing:1.8px;font-weight:600;color:var(--muted);margin-top:2px}.brand-mark{background:var(--ink);color:var(--lime);border-radius:15px;width:43px;height:43px;display:grid;place-items:center;font-family:Georgia,serif;font-size:31px}.class-label{font-size:12px;color:var(--muted);white-space:nowrap}.tabs{display:flex;gap:24px;border-bottom:1px solid var(--line);padding:0 28px}.tabs a{padding:12px 0 15px;text-decoration:none;font-size:14px;font-weight:500;border-bottom:3px solid transparent;color:var(--muted)}.tabs a.active{border-color:var(--ink);color:var(--ink)}main{padding:30px 28px 42px;min-height:65vh}.eyebrow{font-size:11px;letter-spacing:1.6px;text-transform:uppercase;font-weight:700;color:var(--muted);margin-bottom:12px}.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:26px;background:var(--ink);color:#e6eee4;border-radius:25px;padding:34px 36px;overflow:hidden;position:relative}.hero h1{color:#f6f8ee;max-width:440px}.hero .eyebrow{color:var(--lime)}.hero p{color:#d4e0d5;margin:16px 0 23px;max-width:420px;font-size:15px}.hero-art{display:flex;align-items:center;justify-content:center;min-height:230px}.hero-art svg{width:100%;max-width:280px;height:auto}.hero-caption{font-size:11px;fill:#d4e0d5;letter-spacing:1.5px}.pill{display:inline-flex;align-items:center;border-radius:99px;padding:6px 10px;background:var(--pale);font-size:11px;line-height:1.3;font-weight:600;gap:6px}.btn{border:1px solid var(--line);background:var(--white);color:var(--ink);border-radius:12px;padding:13px 18px;min-height:47px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:600;text-decoration:none;text-align:center;line-height:1.4}.btn.primary{background:var(--ink);border-color:var(--ink);color:var(--white)}.btn.lime{background:var(--lime);color:var(--ink);border-color:var(--lime)}.btn.ghost{background:transparent;border-color:transparent;padding-left:0;padding-right:0;justify-content:flex-start}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:23px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:15px;margin:32px 0 16px}.section-head p{font-size:13px;color:var(--muted)}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.topic-card{background:var(--white);border:1px solid var(--line);border-radius:17px;text-align:left;padding:21px;display:flex;gap:16px;align-items:flex-start;transition:transform .15s,border-color .15s;text-decoration:none;width:100%;color:var(--text)}.topic-card:hover{transform:translateY(-2px);border-color:#93ad91}.topic-icon{width:43px;height:43px;display:grid;place-items:center;background:var(--pale);border-radius:13px;font-size:26px;color:var(--ink);flex-shrink:0}.topic-copy{flex:1;min-width:0}.topic-card h3{font-size:16px;margin:1px 0 5px}.topic-card p{font-size:13px;color:var(--muted);line-height:1.5}.topic-meta{display:flex;justify-content:space-between;gap:8px;font-size:11px;color:var(--muted);margin-top:14px}.track{height:5px;background:var(--pale);border-radius:99px;overflow:hidden;margin-top:10px}.track>span{display:block;height:100%;background:#83a76b;border-radius:99px}.side-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px}.soft-card{padding:23px;border-radius:17px;background:var(--pale)}.soft-card p{font-size:14px;color:var(--muted);margin-top:7px}.soft-card.purple{background:var(--purple-bg)}.resume{border:1px solid #a3b889;border-radius:15px;padding:18px 20px;margin:0 0 22px;display:flex;align-items:center;justify-content:space-between;gap:15px;background:#edf4dd}.resume p{font-size:13px;color:var(--muted)}.narrow{max-width:700px;margin:auto}.back{display:inline-flex;text-decoration:none;color:var(--muted);font-size:13px;margin-bottom:22px;padding:6px 0}.lead{font-size:16px;color:var(--muted);margin-top:12px}.notes{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:25px;margin-top:24px}.notes ul{margin:15px 0 0;padding-left:21px}.notes li{margin:12px 0}.notes li:last-child{margin-bottom:0}.quiet{color:var(--muted);font-size:13px;line-height:1.6}.session-top{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:12px;font-size:12px;color:var(--muted)}.session-top button{font-size:12px;min-height:40px;padding:9px 11px}.session-track{margin:0 0 28px;height:6px}.question-panel{background:var(--white);border:1px solid var(--line);border-radius:21px;padding:28px}.question-panel h2{font-size:24px;line-height:1.45;letter-spacing:-.35px;margin:14px 0 9px}.q-instruction{font-size:13px;color:var(--muted);margin-bottom:23px}.options{display:flex;flex-direction:column;gap:10px}.option{border:1.5px solid var(--line);border-radius:13px;background:var(--white);color:var(--text);width:100%;text-align:left;padding:15px;min-height:57px;display:flex;align-items:center;gap:13px;font-size:15px;line-height:1.5;opacity:1!important}.option .letter{flex-shrink:0;border:1px solid var(--line);border-radius:8px;min-width:29px;height:29px;display:grid;place-items:center;font-size:12px;font-weight:700}.option[aria-pressed=true]{border-color:var(--ink);background:var(--pale)}.option[aria-pressed=true] .letter{background:var(--ink);color:var(--white);border-color:var(--ink)}.option.right{background:#edf5e8;border-color:#71936d}.option.wrong{background:var(--bad-bg);border-color:#bd8167}.answer-tag{margin-left:auto;font-size:11px;min-width:42px;font-weight:600}.answer-action{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:21px}.feedback{padding:20px;border-radius:14px;background:#edf5e8;margin-top:22px;scroll-margin-top:22px}.feedback.incorrect{background:var(--bad-bg)}.feedback h3{font-size:18px;margin-bottom:9px}.feedback p{font-size:15px;margin-top:8px}.feedback .correct-line{font-weight:700}.feedback .difference{margin-top:15px;padding-top:13px;border-top:1px solid #d5c2ad}.source{font-size:11px;color:var(--muted);margin-top:17px}.feedback:focus{outline:none}.music-panel{background:var(--purple-bg);border-color:#d5cce1}.music-label{color:var(--purple);font-size:12px;font-weight:700;letter-spacing:1px}.music-panel h2{margin-top:20px}.music-panel .options{margin-top:22px}.music-panel p{margin-top:16px}.music-source{display:inline-block;margin-top:17px;font-size:11px;color:var(--purple)}.score{font-family:'Manrope',sans-serif;font-weight:800;font-size:58px;letter-spacing:-3px;line-height:1.15;color:var(--ink);margin:22px 0 7px}.score small{font-size:23px;letter-spacing:-.8px;color:var(--muted)}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:24px}.result-stat{background:var(--white);border:1px solid var(--line);border-radius:15px;padding:19px}.stat-num{font-size:28px;color:var(--ink);font-weight:700;margin:7px 0}.result-list{margin-top:25px}.result-row{display:flex;justify-content:space-between;gap:14px;padding:17px 0;border-bottom:1px solid var(--line);font-size:14px}.result-row span:last-child{white-space:nowrap;font-weight:600}.progress-list{display:flex;flex-direction:column;gap:12px;margin-top:24px}.progress-item{border:1px solid var(--line);background:var(--white);border-radius:17px;padding:20px}.progress-head{display:flex;gap:12px;justify-content:space-between;flex-wrap:wrap;align-items:center}.progress-item h3{font-size:16px}.progress-detail{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:12px;margin-top:14px}.progress-item .track{margin-top:17px}.history{margin-top:32px}.history table{border-collapse:collapse;width:100%;font-size:13px}.history th,.history td{text-align:left;padding:12px 5px;border-bottom:1px solid var(--line)}.history th{color:var(--muted);font-weight:500}.history td:last-child{text-align:right}.checkbox-row{display:flex;gap:12px;align-items:center;min-height:48px}.checkbox-row input{width:20px;height:20px;accent-color:var(--ink)}.about-section{margin:28px 0}.about-section h2{font-size:21px;margin-bottom:12px}.about-section p{font-size:15px;margin:12px 0}.about-section ul{padding-left:22px;font-size:15px}.warning{background:var(--bad-bg);color:var(--bad);padding:13px;border-radius:10px;font-size:13px;margin-top:15px}.share-note{font-size:13px;color:var(--muted);margin-top:12px;min-height:20px}footer{padding:23px 28px 30px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:space-between;flex-wrap:wrap;font-size:11px;color:var(--muted)}details{margin-top:20px}summary{cursor:pointer;padding:10px 0;font-size:14px;font-weight:600}.noscript{padding:25px}.empty{padding:30px 0}.review-note{color:var(--bad);font-size:13px;margin:15px 0}.topic-name-inline{font-size:12px}.check-intro{background:var(--pale);padding:20px;border-radius:15px;margin-top:23px}.check-intro p{font-size:14px}.simple-list{padding-left:22px}.simple-list li{margin:9px 0}.congrats-line{color:var(--muted);font-size:15px}.stats-top{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:25px}.stats-top .result-stat{padding:19px 17px}.stats-top .quiet{font-size:12px}.checked-label{background:var(--lime)}
@media(max-width:700px){.top{padding:20px 20px 18px}.tabs{padding:0 20px;gap:22px}.tabs a{font-size:13px}.hero{grid-template-columns:1fr;padding:28px;gap:0}.hero-art{display:none}main{padding:23px 20px 32px}.hero h1{font-size:35px}.hero p{font-size:14px}.topic-grid{grid-template-columns:1fr}.topic-card{padding:18px}.side-grid{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column;gap:5px}.question-panel{padding:23px 20px;border-radius:18px}.question-panel h2{font-size:22px}.answer-action{flex-direction:column;align-items:stretch}.answer-action .quiet{text-align:center}.answer-action .btn{width:100%}.feedback{padding:18px}.stats-top{grid-template-columns:1fr 1fr}.stats-top .result-stat:last-child{grid-column:1/-1}.resume{align-items:flex-start;flex-direction:column}.resume .btn{width:100%}.score{font-size:52px}.result-grid{gap:10px}.result-stat{padding:16px}.progress-head{gap:8px}.notes{padding:21px}footer{padding:20px;flex-direction:column}.option{padding:13px;gap:10px}.answer-tag{font-size:10px;min-width:33px}.top .brand{font-size:14px}.brand small{font-size:8px;letter-spacing:1.4px}.class-label{font-size:11px}}
@media(max-width:370px){main{padding-left:14px;padding-right:14px}.tabs{gap:17px;padding:0 14px}.top{padding-left:14px;padding-right:14px}.hero{padding:24px}.question-panel{padding:20px 16px}.option{font-size:14px}.brand small{letter-spacing:1px}.class-label{display:none}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}