:root{--navy:#102d3c;--green:#147b65;--mint:#b8edcf;--paper:#f5f7f4;--muted:#60736f;--line:#dce5df}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--navy);background:var(--paper);font-family:Inter,Arial,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}header{min-height:94px;padding:22px max(5vw,20px);display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line);gap:25px}.brand{display:flex;align-items:center;gap:11px;font-size:23px;font-weight:750;letter-spacing:-.8px}.brand small{display:block;font-size:8px;letter-spacing:2px;color:var(--muted)}.mark{background:var(--navy);color:var(--mint);padding:0 9px;border-radius:9px;font-size:29px}nav,.actions{display:flex;gap:26px;align-items:center}nav{font-size:13px}.button{display:inline-flex;justify-content:center;align-items:center;background:var(--green);color:white;border:0;border-radius:7px;padding:15px 24px;font-size:14px;font-weight:700;cursor:pointer;line-height:1.5}.button.small{padding:12px 18px;background:var(--navy)}section{padding:76px max(7vw,24px)}h1,h2,h3{line-height:1.15;letter-spacing:-1.7px}h1{font-size:clamp(34px,4.4vw,63px);margin:18px 0 25px}h2{font-size:clamp(29px,3.3vw,44px);margin:20px 0}h3{font-size:23px;letter-spacing:-.6px}p{color:var(--muted)}.hero{background:var(--navy);display:grid;grid-template-columns:1.3fr .8fr;gap:8vw;align-items:center;min-height:670px;color:#fff}.hero p{color:#c0d1d0}.hero em{color:var(--mint);font-style:normal}.hero .button{background:var(--mint);color:var(--navy)}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:bold}.green{color:var(--green)}.lead{font-size:18px;max-width:610px}.subtle,.fine{font-size:12px}.subtle{margin-top:26px}.feature{background:#e3efdf;color:var(--navy);padding:34px;border-radius:10px;box-shadow:16px 16px 0 #ffffff0c;border:1px solid #ffffff50;transform:rotate(2deg)}.feature p{color:#365d50}.feature h2{font-size:51px;letter-spacing:-3px;margin:30px 0 15px}.feature h2 span,.dot{color:var(--green)}.tag{display:inline-block;font-size:10px;font-weight:700;padding:7px 12px;letter-spacing:1px;border-radius:5px;background:#d9e9df;color:#285d48}.book-label{font-size:10px;letter-spacing:2px;margin-top:35px}.line{height:1px;background:#b6cab9;margin:25px 0}.seal{font-size:12px;font-weight:700;margin-top:34px}.intro{max-width:710px;font-size:17px}.grid{display:grid;gap:20px;margin:36px 0}.three{grid-template-columns:repeat(3,1fr)}.two{grid-template-columns:repeat(2,1fr)}.card{background:white;border:1px solid var(--line);padding:30px;border-radius:10px}.card h2{font-size:28px}.number{font-size:10px;letter-spacing:1.4px;color:var(--green);font-weight:bold}.purchase{display:flex;align-items:center;justify-content:space-between;gap:25px;background:#e5eee5;padding:28px 35px;border-radius:10px;margin-top:30px}.purchase h3,.purchase p{margin:5px 0}.soft{background:#e6ede7}.auth{max-width:590px;margin:60px auto}.auth h1{font-size:39px}.notice{background:#e5f1e8;padding:20px;border-left:4px solid var(--green);color:#275c45;margin:25px 0}.reading{max-width:950px;margin:auto}.lesson h1{font-size:40px}.lesson h2{font-size:23px;margin-top:35px}.lesson p{font-size:17px;line-height:1.85}.reading form{margin-top:20px}label{display:block;font-size:13px;font-weight:600;margin:18px 0;color:var(--navy)}input,select,textarea{width:100%;display:block;margin-top:7px;padding:13px;border:1px solid #b8c9bd;border-radius:6px;font:inherit;background:#fff;color:var(--navy)}input[type=checkbox]{width:18px;display:inline;margin:0 8px 0 0}.check{display:flex;align-items:center;font-weight:400}.text-button{border:0;background:none;color:var(--green);padding:5px 0;cursor:pointer;font:inherit;text-decoration:underline}output{display:block;margin-top:18px;color:var(--green);font-weight:600}footer{background:#0c2431;color:white;padding:45px max(7vw,24px);font-size:12px}footer p{color:#adc7c1}.muted{color:var(--muted)}[hidden]{display:none!important}:focus-visible{outline:3px solid #3fa48b;outline-offset:4px}@media(max-width:850px){.hero{grid-template-columns:1fr;gap:45px}.feature{max-width:420px;transform:none}.three{grid-template-columns:1fr}.two{grid-template-columns:1fr}nav{gap:12px}nav>a:first-child{display:none}.purchase{align-items:flex-start;flex-direction:column}.actions{align-items:flex-start;flex-direction:column}.auth{margin:25px 18px}section{padding:50px 24px}header{padding:18px}.brand{font-size:19px}nav .button.small{font-size:11px;padding:10px}.brand small{font-size:6px}.feature h2{font-size:45px}}
