@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--ink:#193e3e;--teal:#176b5e;--paper:#f8f7f2;--muted:#596b68;--line:#d9e1d9;--mint:#e8f0e9;--gold:#f2cb70;--white:#fffefa}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:'DM Sans',Arial,sans-serif;font-size:15px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:var(--teal)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #be861e;outline-offset:4px}header{height:102px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);max-width:1240px;margin:auto;padding:0 20px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:25px;font-weight:700;letter-spacing:-1px}.brand-icon{display:block;font-size:28px;letter-spacing:-3px;background:var(--ink);color:white;width:48px;height:48px;text-align:center;border-radius:14px;line-height:48px}.brand-icon span{color:var(--gold)}.brand small{display:block;letter-spacing:1.7px;font-size:9px;margin-top:4px}.header-note{font-size:13px;color:var(--muted)}.level{border:1px solid #c4d0c8;border-radius:20px;font-size:10px;letter-spacing:1.5px;padding:9px 13px;font-weight:700}main{max-width:1200px;margin:auto;padding:0 20px}.intro{display:flex;justify-content:space-between;align-items:center;padding:54px 45px 48px 0;gap:30px}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:700;color:var(--teal);margin:0 0 18px}h1{font-family:Manrope,Arial,sans-serif;font-size:43px;line-height:1.22;letter-spacing:-1.8px;margin:0 0 18px;font-weight:800}h1 em{font-style:normal;color:var(--teal)}.subtitle{font-size:15px;line-height:1.7;color:var(--muted);margin:0}.hero-card{position:relative;background:#e6ede2;border:1px solid #d7e0d3;transform:rotate(-3deg);padding:24px 33px;width:330px;border-radius:16px;box-shadow:9px 10px 0 #edeadf}.scribble{font-size:12px;color:#61796c;letter-spacing:.5px}.verb-art{font-family:Manrope,Arial,sans-serif;font-size:43px;letter-spacing:-2px;margin:16px 0}.strike{color:#86988b;text-decoration:line-through;text-decoration-color:#b47e4b}.plus{font-size:26px;color:#7c9082}.verb-art b{color:var(--teal);background:#f3d27f;border-radius:9px;padding:0 7px}.art-bottom{display:flex;align-items:center;gap:18px}.art-bottom>span:first-child{border:1px solid #becfbe;border-radius:8px;padding:5px 14px;font-size:12px}.art-bottom strong{font-size:22px}.arrow{color:#86978a}.check{margin-left:auto;background:var(--teal);color:white;border-radius:50%;width:26px;text-align:center;line-height:26px}.dot{position:absolute;border-radius:50%;background:var(--gold)}.d1{width:14px;height:14px;top:-8px;right:35px}.d2{width:7px;height:7px;bottom:30px;left:-25px}.workspace{display:grid;grid-template-columns:255px minmax(0,1fr);gap:30px;align-items:start}aside>.eyebrow{margin:9px 0 15px}.module{width:100%;border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:12px;margin-bottom:12px;padding:19px 15px;display:flex;gap:12px;text-align:left;align-items:flex-start}.module.active{background:var(--ink);color:#fff;border-color:var(--ink)}.module-number{font-size:12px;opacity:.65;padding-top:2px}.module small{display:block;font-size:8px;letter-spacing:1.5px;margin-bottom:8px;opacity:.7}.module strong{display:block;font-size:16px;margin-bottom:7px}.module>span:nth-child(2)>span{font-size:10px;opacity:.8;display:block}.module-arrow{margin-left:auto;font-size:17px;color:#b2c5b8}.module.active .module-arrow{color:var(--gold)}.routine{padding:22px 18px 20px;border-bottom:1px solid var(--line)}.mini-icon{color:#b48227;font-size:22px}.routine h3{font-size:13px;margin:10px 0}.routine p{font-size:12px;line-height:1.9;color:var(--muted);margin:0 0 12px}.routine small{font-size:10px;color:var(--muted)}.progress{padding:20px 18px;font-size:11px;color:var(--muted);line-height:1.8}.progress strong{color:var(--ink)}.text-button{background:none;border:0;color:var(--teal);padding:0;text-decoration:underline;font-size:11px}.panel{border:1px solid var(--line);border-radius:16px;background:var(--white);overflow:hidden;min-height:590px}nav{display:flex;border-bottom:1px solid var(--line);padding:0 30px;gap:26px}nav button{border:0;border-bottom:3px solid transparent;padding:22px 0 19px;background:none;color:#77837c;display:flex;gap:9px;font-size:10px;align-items:center}nav button span{font-size:13px;font-weight:600}nav button.selected{color:var(--teal);border-bottom-color:var(--teal)}#content{padding:30px}.section-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}h2{font:800 25px/1.3 Manrope,Arial,sans-serif;letter-spacing:-.8px;margin:0 0 8px}.lead{font-size:13px;line-height:1.7;color:var(--muted);margin:0 0 24px}.tag{font-size:9px;letter-spacing:.7px;border:1px solid var(--line);border-radius:20px;padding:7px 10px;white-space:nowrap}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:25px}.step{padding:16px 13px;border:1px solid var(--line);border-radius:10px;font-size:11px}.step small{display:block;color:var(--teal);font-size:9px;letter-spacing:1px;margin-bottom:9px}.step strong{display:block;font-size:13px;margin-bottom:8px}.step p{margin:0;color:var(--muted);font-size:11px;line-height:1.5}.builder{background:#f2f5ef;padding:20px;border-radius:12px;margin-bottom:25px}.builder-top{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px}.builder h3{margin:0;font-size:13px}.selects{display:flex;gap:10px}.selects label{font-size:10px;color:var(--muted)}select{display:block;margin-top:5px;border:1px solid #becfc2;border-radius:7px;background:var(--white);padding:8px 25px 8px 9px;color:var(--ink);max-width:100%}.equation{display:flex;align-items:center;gap:14px;font-size:23px;margin:0 0 10px;flex-wrap:wrap}.equation b{color:var(--teal)}.equation .ending{background:#f4db96;border-radius:5px;padding:0 5px}.explain{color:var(--muted);font-size:12px;line-height:1.6;margin:0}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:12px;text-align:left}th{font-weight:600;font-size:10px;color:var(--muted);padding:11px 9px;background:#f3f5f0}td{padding:12px 9px;border-bottom:1px solid #e6e9e2}td:first-child{font-weight:500}td.mark{color:var(--teal);background:#f1f6ef;font-weight:700}.note{font-size:11px;line-height:1.7;color:var(--muted);margin:18px 0 0}.note strong{color:var(--ink)}.subheading{font-size:14px;margin:25px 0 12px}.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.pill{border:1px solid var(--line);border-radius:20px;padding:9px 13px;font-size:11px;background:transparent;color:var(--muted)}.pill.active{background:var(--mint);border-color:#92b6a4;color:var(--teal)}.group-info{background:#f3f5ef;padding:16px;border-radius:10px;font-size:12px;line-height:1.8;margin-bottom:20px}.primary,.secondary{border:0;border-radius:8px;padding:12px 20px;font-weight:600;font-size:13px;background:var(--teal);color:white;text-decoration:none;display:inline-block}.secondary{background:var(--mint);color:var(--teal);border:1px solid #d1dfd3}.primary:hover{background:#0c5146}.secondary:hover{background:#dfeade}.practice-options label{display:block;font-size:12px;margin-bottom:25px}.practice-options select{width:100%;margin-top:10px}.practice-intro{background:var(--mint);border-radius:12px;padding:22px;margin:20px 0;line-height:1.8;font-size:13px}.question-head{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:12px}.bar{height:5px;background:#e7ebe4;border-radius:5px;margin-bottom:25px}.bar>div{height:5px;border-radius:5px;background:var(--teal)}.prompt{font:800 35px Manrope,Arial,sans-serif;margin:20px 0 6px;letter-spacing:-1px}.meaning{font-size:13px;color:var(--muted);margin:0 0 25px}.answer-label{display:block;font-size:11px;font-weight:600;margin-bottom:8px}.answer{width:100%;border:1px solid #a6beb0;border-radius:8px;padding:14px;font-size:22px;color:var(--ink);background:#fff}.accents{display:flex;gap:6px;margin:10px 0 20px}.accents button{border:1px solid var(--line);border-radius:6px;background:#f5f7f1;padding:6px 13px;color:var(--ink)}.actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:16px}.feedback{padding:17px;border-radius:10px;margin:20px 0 0;font-size:13px;line-height:1.7;background:#e9f2e7}.feedback.retry{background:#fff2d3}.feedback strong{display:block}.hint{font-size:12px;color:var(--muted);border-left:3px solid var(--gold);padding:10px 15px;margin-top:15px;line-height:1.7}.result-number{font:800 60px Manrope,Arial,sans-serif;color:var(--teal);margin:15px 0}.downloads{display:grid;gap:12px;margin:25px 0}.download{border:1px solid var(--line);border-radius:10px;padding:20px;display:flex;align-items:center;gap:15px;text-decoration:none;color:var(--ink)}.download:hover{background:#f0f5ed}.download .file{background:var(--mint);padding:12px 9px;border-radius:7px;font-size:10px;color:var(--teal);font-weight:700}.download strong{display:block;font-size:14px}.download small{display:block;color:var(--muted);font-size:11px;margin-top:7px}.download .down{margin-left:auto;font-size:22px;color:var(--teal)}footer{display:flex;justify-content:space-between;color:#738078;font-size:10px;padding:30px 0 35px;margin-top:20px;border-top:1px solid var(--line)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(min-width:1400px){main{padding-top:14px}}@media(max-width:900px){.intro{padding-right:0}h1{font-size:35px}.hero-card{width:270px;padding:25px}.verb-art{font-size:34px}.workspace{grid-template-columns:210px minmax(0,1fr);gap:18px}.module{padding:16px 10px}.module strong{font-size:14px}#content{padding:23px}.steps{gap:6px}.step{padding:12px 9px}.builder-top{display:block}.selects{margin-top:15px}.header-note{display:none}}@media(max-width:650px){header{height:83px;padding:0 20px}.brand{font-size:21px}.brand-icon{height:42px;width:42px;line-height:42px}.level{font-size:8px;padding:7px 9px}main{padding:0 18px}.intro{padding:30px 0;gap:20px}h1{font-size:30px;letter-spacing:-1px}.intro .eyebrow{font-size:8px}.subtitle{font-size:13px}.hero-card{display:none}.workspace{display:block}aside{display:grid;grid-template-columns:1fr 1fr;gap:10px}aside>.eyebrow{grid-column:1/-1;margin:0}.module{margin:0;gap:9px;padding:14px 10px}.module-arrow,.routine{display:none}.module strong{font-size:13px}.module>span:nth-child(2)>span{font-size:9px}.progress{grid-column:1/-1;padding:0 0 14px}.panel{border-radius:12px;min-height:550px}nav{padding:0 20px;gap:22px}nav button{padding-top:18px}#content{padding:23px 18px}h2{font-size:23px}.tag{display:none}.step{padding:12px 9px}.step strong{font-size:11px}.step p{font-size:10px}.steps{margin-bottom:20px}.builder{padding:16px}.selects{gap:7px}.selects label{flex:1}select{font-size:12px;width:100%}table{font-size:11px}td,th{padding:10px 6px}footer{display:block;line-height:2}footer span{display:block}.prompt{font-size:30px}}@media(prefers-reduced-motion:no-preference){button,a{transition:background .15s,color .15s}#content{animation:appear .2s ease-out}@keyframes appear{from{opacity:.5;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}}