@font-face{font-family:Newsreader;src:url('fonts/Newsreader.ttf') format('truetype');font-weight:200 800;font-display:swap}@font-face{font-family:Manrope;src:url('fonts/Manrope.ttf') format('truetype');font-weight:200 800;font-display:swap}
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70px;grid-template-areas:'title title' 'offer offer' 'cover intro'}.front h1{grid-area:title}.purchase{grid-area:offer;padding:24px 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}#paymentForm{display:grid;grid-template-columns:180px minmax(220px,1fr) minmax(260px,.85fr);gap:18px 24px;align-items:start}label{display:block;font-size:14px;font-weight:750;margin-bottom:7px}input{display:block;width:100%;min-height:49px;border:1px solid #7e98ab;background:var(--white);color:var(--ink);border-radius:3px;padding:10px 13px}input::placeholder{color:#526b7b}.email-group p{font-size:12px;color:var(--soft);margin:6px 0 0}.price{display:flex;flex-direction:column;gap:6px}.price strong{font-size:38px;font-weight:800;line-height:1.1;white-space:nowrap;font-variant-numeric:tabular-nums}.price span{font-size:13px;line-height:1.5;color:var(--soft)}.payment-action{padding-top:28px}.payment-action>.action{width:100%}.promo{font-size:12px;margin-top:10px}.promo summary{cursor:pointer;text-decoration:underline;text-underline-offset:3px}.promo label{margin-top:12px}.delivery{font-size:14px;line-height:1.7;margin:16px 0 7px;max-width:100%}.purchase>.fine{margin:0}.message{display:none;padding:14px;border-radius:3px;grid-column:1/-1}.message.show{display:block}.error{color:#842936;background:#ffe9ed}.success{color:#244e3a;background:#e5f3e9}#payment-element{grid-column:1/-1}#payment-element:empty{display:none}.loading-spinner{width:18px;height:18px;border:2px solid transparent;border-top-color:currentColor;border-radius:50%;display:none}.buy.loading .loading-spinner,.action.loading .loading-spinner{display:inline-block;animation:spin .8s linear infinite}.action.loading .button-text{display:none}@keyframes spin{to{transform:rotate(360deg)}}.cover{grid-area:cover;margin:0}.cover img{display:block;width:100%;height:auto}.cover figcaption{margin-top:12px}.intro{grid-area:intro;max-width:700px}.intro>.lead{font-size:30px;font-family:var(--display);line-height:1.25}.text-link{display:inline-block;margin-top:10px;font-weight:750}.spread{padding-block:84px}.columns{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:60px}.blue{background:var(--blue)}.blue .fine{color:#37556c}.files{margin:38px 0 28px}.files>div{display:grid;grid-template-columns:250px minmax(0,1fr);gap:50px;padding:25px 0;border-top:1px solid #9fb7c8}.files dt{font:600 30px/1.1 var(--display)}.files dd{margin:0;max-width:75ch}.chapter-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:70px;list-style-position:inside;padding:0;margin:40px 0 60px}.chapter-list li{padding:16px 0;border-bottom:1px solid var(--rule)}.example{background:#f2e6df;color:#4d2e20}.example h1,.example h2,.example h3{color:#4d2e20}.example .fine{color:#704e3e}.phase-tabs{display:flex;gap:0;margin-top:28px;border-bottom:1px solid 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@media(min-width:761px){.sticky{display:none}}
@media(max-width:900px){.masthead nav{gap:14px}.front{column-gap:40px;grid-template-columns:260px 1fr}#paymentForm{grid-template-columns:140px 1fr}.payment-action{grid-column:1/-1;padding-top:0}.payment-action>.action{width:auto}.columns{gap:36px}.files>div,.phase-panel dl>div{grid-template-columns:200px 1fr;gap:30px}}
@media(max-width:760px){body{font-size:16px;padding-bottom:76px}.wrap{width:calc(100% - 40px)}.masthead{padding-block:20px;gap:12px}.brand{font-size:19px}.masthead nav{display:none}.masthead>.action{font-size:12px;padding:12px 14px}.front{padding:32px 0 50px;display:flex;flex-direction:column;gap:28px}.front h1{order:0;font-size:46px}.cover{order:1;width:100%;max-width:360px;margin-inline:auto}.intro{order:2}.intro>.lead{font-size:28px}.purchase{order:3}#paymentForm{grid-template-columns:1fr;gap:16px}.price{flex-direction:row;align-items:center;gap:22px}.payment-action{grid-column:auto}.payment-action>.action{width:100%}.delivery{font-size:14px}.spread{padding-block:56px}.columns{display:block}.columns>h2{margin-bottom:24px}.columns h3{margin-top:32px}h2{font-size:39px}.lead{font-size:20px}.files>div{display:block}.files dt{font-size:28px;margin-bottom:15px}.chapter-list{display:block;margin:28px 0 42px}.phase-tabs{gap:0}.phase-tabs button{font-size:13px;padding:16px 7px}.phase-panel dl>div{display:block;padding:18px 0}.phase-panel dt{font-size:14px;margin-bottom:7px}.phase-panel h3{font-size:27px}.sources{padding-block:35px}footer{display:block;padding-bottom:40px}footer p{margin-bottom:18px}footer nav{gap:14px}.closing h2{font-size:38px}}
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